annotate trunk/src/dil/Lexer.d @ 344:757c86e2c3cc

- Added member tail and destructor method to Lexer.
author aziz
date Thu, 23 Aug 2007 15:26:04 +0000
parents 95f1b6e43214
children ce9e2e77743f
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0
8ba2570de175 Initial import.
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1 /++
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2 Author: Aziz Köksal
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3 License: GPL3
0
8ba2570de175 Initial import.
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4 +/
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5 module dil.Lexer;
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6 import dil.Token;
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7 import dil.Information;
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8 import dil.Keywords;
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9 import dil.Identifier;
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10 import dil.Messages;
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11 import dil.HtmlEntities;
343
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12 import dil.Settings;
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13 import std.stdio;
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14 import std.utf;
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15 import std.uni;
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16 import std.c.stdlib : strtof, strtod, strtold, getErrno, ERANGE;
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17 import std.c.time : time_t, time, ctime;
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18 import std.c.string : strlen;
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19 import std.string;
0
8ba2570de175 Initial import.
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20
11
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21 const char[3] LS = \u2028;
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22 const char[3] PS = \u2029;
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23
18
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24 const dchar LSd = 0x2028;
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25 const dchar PSd = 0x2029;
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26
32
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27 const uint _Z_ = 26; /// Control+Z
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28
0
8ba2570de175 Initial import.
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29 class Lexer
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30 {
239
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31 Token* head; /// The head of the doubly linked token list.
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32 Token* tail; /// The tail of the linked list. Set in scan().
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33 Token* token; /// Points to the current token in the token list.
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34 string text;
239
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35 char* p; /// Points to the current character in the source text.
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36 char* end; /// Points one character past the end of the source text.
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37
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38 uint loc = 1; /// line of code
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39
30
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40 char[] fileName;
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41
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42 Information[] errors;
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43
239
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44 // bool reportErrors;
103
511a1aa25896 - Added reportErrors member to Lexer. Moved peek() down and rewrote it a bit making use of reportErrors. error() uses reportErrors too.
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45
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46 Identifier[string] idtable;
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47
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48 this(string text, string fileName)
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49 {
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50 this.fileName = fileName;
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51
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52 this.text = text;
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53 if (text[$-1] != 0)
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54 {
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55 this.text.length = this.text.length + 1;
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56 this.text[$-1] = 0;
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57 }
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58
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59 this.p = this.text.ptr;
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60 this.end = this.p + this.text.length;
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61 // this.reportErrors = true;
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62 loadKeywords();
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63
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64 this.head = new Token;
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65 this.head.type = TOK.HEAD;
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66 this.token = this.head;
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67 scanShebang();
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68 }
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69
344
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70 ~this()
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71 {
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72 auto token = head.next;
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73 do
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74 {
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75 assert(token.type == TOK.EOF ? token == tail && token.next is null : 1);
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76 delete token.prev;
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77 token = token.next;
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78 } while (token !is null)
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79 delete tail;
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80 }
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81
315
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82 void scanShebang()
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83 {
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84 if (*p == '#' && p[1] == '!')
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85 {
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86 Token* t = new Token;
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87 t.start = p;
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88 t.type = TOK.Shebang;
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89 ++p;
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90 while (1)
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91 {
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92 switch (*++p)
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93 {
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94 case '\r':
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95 if (p[1] == '\n')
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96 ++p;
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97 case '\n':
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98 ++loc;
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99 if (p[-1] == '\r')
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100 t.end = p-1;
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101 else
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102 t.end = p;
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103 break;
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104 case LS[0]:
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105 t.end = p;
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106 if (p[1] == LS[1] && (p[2] == LS[2] || p[2] == PS[2]))
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107 {
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108 ++p; ++p;
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109 ++loc;
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110 }
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111 break;
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112 case 0, _Z_:
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113 t.end = p;
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114 break;
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115 default:
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116 continue;
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117 }
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118 break; // Exit loop.
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119 }
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120 this.head.next = t;
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121 t.prev = this.head;
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122 }
4
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123 }
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124
343
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125 void finalizeSpecialToken(ref Token t)
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126 {
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127 assert(t.srcText[0..2] == "__");
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128 switch (t.type)
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129 {
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130 case TOK.FILE:
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131 t.str = this.fileName;
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132 break;
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133 case TOK.LINE:
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134 t.uint_ = this.loc;
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135 break;
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136 case TOK.DATE,
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137 TOK.TIME,
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138 TOK.TIMESTAMP:
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139 time_t time_val;
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140 time(&time_val);
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141 char* str = ctime(&time_val);
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142 char[] time_str = str[0 .. strlen(str)];
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143 switch (t.type)
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144 {
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145 case TOK.DATE:
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146 time_str = time_str[4..10] ~ time_str[20..24] ~ \0; break;
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147 case TOK.TIME:
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148 time_str = time_str[11..19] ~ \0; break;
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149 case TOK.TIMESTAMP:
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150 time_str = time_str[0..24] ~ \0; break;
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151 default: assert(0);
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152 }
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153 t.str = time_str;
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154 break;
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155 case TOK.VENDOR:
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156 t.str = VENDOR;
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157 break;
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158 case TOK.VERSION:
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159 t.uint_ = VERSION_MAJOR*1000 + VERSION_MINOR;
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160 break;
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161 default:
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162 assert(0);
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163 }
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164 }
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165
4
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166 public void scan(out Token t)
207
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167 in
3
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168 {
207
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169 assert(text.ptr <= p && p < end);
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170 }
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171 out
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172 {
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parents: 131
diff changeset
173 assert(text.ptr <= t.start && t.start < end);
481ed2b63a49 - Added contracts to method scan().
aziz
parents: 131
diff changeset
174 assert(text.ptr < t.end && t.end <= end, std.string.format(t.type));
481ed2b63a49 - Added contracts to method scan().
aziz
parents: 131
diff changeset
175 }
481ed2b63a49 - Added contracts to method scan().
aziz
parents: 131
diff changeset
176 body
481ed2b63a49 - Added contracts to method scan().
aziz
parents: 131
diff changeset
177 {
10
3ee65d6e39c9 - Parsing // comments now.
aziz
parents: 9
diff changeset
178 uint c = *p;
4
92df59b1ec4a - Started implementation of scan().
aziz
parents: 3
diff changeset
179
62
96af5653acef - Fixed loop of hex number scanner. Moved checks under the switch block.
aziz
parents: 61
diff changeset
180 while (1)
4
92df59b1ec4a - Started implementation of scan().
aziz
parents: 3
diff changeset
181 {
5
79b4e8848794 - Started writing XML generator.
aziz
parents: 4
diff changeset
182 t.start = p;
16
476e8e55c1d4 - Added Whitespace to the character properties table.
aziz
parents: 15
diff changeset
183
212
c9b9c979a620 - Fix: checking for _Z_.
aziz
parents: 209
diff changeset
184 if (c == 0 || c == _Z_)
5
79b4e8848794 - Started writing XML generator.
aziz
parents: 4
diff changeset
185 {
212
c9b9c979a620 - Fix: checking for _Z_.
aziz
parents: 209
diff changeset
186 assert(*p == 0 || *p == _Z_);
5
79b4e8848794 - Started writing XML generator.
aziz
parents: 4
diff changeset
187 t.type = TOK.EOF;
17
9bd0bac79479 - Removed Whitespace from enum list.
aziz
parents: 16
diff changeset
188 t.end = p;
344
757c86e2c3cc - Added member tail and destructor method to Lexer.
aziz
parents: 343
diff changeset
189 tail = &t;
212
c9b9c979a620 - Fix: checking for _Z_.
aziz
parents: 209
diff changeset
190 assert(t.start == t.end);
5
79b4e8848794 - Started writing XML generator.
aziz
parents: 4
diff changeset
191 return;
79b4e8848794 - Started writing XML generator.
aziz
parents: 4
diff changeset
192 }
4
92df59b1ec4a - Started implementation of scan().
aziz
parents: 3
diff changeset
193
17
9bd0bac79479 - Removed Whitespace from enum list.
aziz
parents: 16
diff changeset
194 if (c == '\n')
9bd0bac79479 - Removed Whitespace from enum list.
aziz
parents: 16
diff changeset
195 {
9bd0bac79479 - Removed Whitespace from enum list.
aziz
parents: 16
diff changeset
196 c = *++p;
9bd0bac79479 - Removed Whitespace from enum list.
aziz
parents: 16
diff changeset
197 ++loc;
9bd0bac79479 - Removed Whitespace from enum list.
aziz
parents: 16
diff changeset
198 continue;
9bd0bac79479 - Removed Whitespace from enum list.
aziz
parents: 16
diff changeset
199 }
9bd0bac79479 - Removed Whitespace from enum list.
aziz
parents: 16
diff changeset
200 else if (c == '\r')
9bd0bac79479 - Removed Whitespace from enum list.
aziz
parents: 16
diff changeset
201 {
9bd0bac79479 - Removed Whitespace from enum list.
aziz
parents: 16
diff changeset
202 c = *++p;
9bd0bac79479 - Removed Whitespace from enum list.
aziz
parents: 16
diff changeset
203 if (c != '\n')
9bd0bac79479 - Removed Whitespace from enum list.
aziz
parents: 16
diff changeset
204 ++loc;
9bd0bac79479 - Removed Whitespace from enum list.
aziz
parents: 16
diff changeset
205 continue;
9bd0bac79479 - Removed Whitespace from enum list.
aziz
parents: 16
diff changeset
206 }
32
d7011daa4740 - Added missing commas after the items in the messages table.
aziz
parents: 31
diff changeset
207 else if (c == LS[0] && p[1] == LS[1] && (p[2] == LS[2] || p[2] == PS[2]))
d7011daa4740 - Added missing commas after the items in the messages table.
aziz
parents: 31
diff changeset
208 {
d7011daa4740 - Added missing commas after the items in the messages table.
aziz
parents: 31
diff changeset
209 p += 3;
d7011daa4740 - Added missing commas after the items in the messages table.
aziz
parents: 31
diff changeset
210 c = *p;
d7011daa4740 - Added missing commas after the items in the messages table.
aziz
parents: 31
diff changeset
211 continue;
d7011daa4740 - Added missing commas after the items in the messages table.
aziz
parents: 31
diff changeset
212 }
17
9bd0bac79479 - Removed Whitespace from enum list.
aziz
parents: 16
diff changeset
213
13
e5211758b63c - Added isidbeg() function.
aziz
parents: 12
diff changeset
214 if (isidbeg(c))
5
79b4e8848794 - Started writing XML generator.
aziz
parents: 4
diff changeset
215 {
33
cf3047cf3cd2 - Added code for parsing back quote and raw strings.
aziz
parents: 32
diff changeset
216 if (c == 'r' && p[1] == '"' && ++p)
31
94f09f4e988e - Added struct for strings to Token with 'pf' = postfix.
aziz
parents: 30
diff changeset
217 return scanRawStringLiteral(t);
94f09f4e988e - Added struct for strings to Token with 'pf' = postfix.
aziz
parents: 30
diff changeset
218 if (c == 'x' && p[1] == '"')
94f09f4e988e - Added struct for strings to Token with 'pf' = postfix.
aziz
parents: 30
diff changeset
219 return scanHexStringLiteral(t);
12
0989206cf73c - Added code to decode Unicode characters in identifiers.
aziz
parents: 11
diff changeset
220 Lidentifier:
5
79b4e8848794 - Started writing XML generator.
aziz
parents: 4
diff changeset
221 do
79b4e8848794 - Started writing XML generator.
aziz
parents: 4
diff changeset
222 { c = *++p; }
49
7f0fa15dcffc - Renamed function.
aziz
parents: 48
diff changeset
223 while (isident(c) || c & 128 && isUniAlpha(decodeUTF8()))
28
3a9daccf7d96 - Added table for identifiers to Lexer.
aziz
parents: 27
diff changeset
224
5
79b4e8848794 - Started writing XML generator.
aziz
parents: 4
diff changeset
225 t.end = p;
28
3a9daccf7d96 - Added table for identifiers to Lexer.
aziz
parents: 27
diff changeset
226
65
6c21ae79fbb3 - Renamed function Token.span to Token.srcText.
aziz
parents: 64
diff changeset
227 string str = t.srcText;
28
3a9daccf7d96 - Added table for identifiers to Lexer.
aziz
parents: 27
diff changeset
228 Identifier* id = str in idtable;
3a9daccf7d96 - Added table for identifiers to Lexer.
aziz
parents: 27
diff changeset
229
3a9daccf7d96 - Added table for identifiers to Lexer.
aziz
parents: 27
diff changeset
230 if (!id)
3a9daccf7d96 - Added table for identifiers to Lexer.
aziz
parents: 27
diff changeset
231 {
327
a48a987f7515 - Added package dil to import declarations.
aziz
parents: 326
diff changeset
232 idtable[str] = Identifier(TOK.Identifier, str);
28
3a9daccf7d96 - Added table for identifiers to Lexer.
aziz
parents: 27
diff changeset
233 id = str in idtable;
3a9daccf7d96 - Added table for identifiers to Lexer.
aziz
parents: 27
diff changeset
234 }
3a9daccf7d96 - Added table for identifiers to Lexer.
aziz
parents: 27
diff changeset
235 assert(id);
3a9daccf7d96 - Added table for identifiers to Lexer.
aziz
parents: 27
diff changeset
236 t.type = id.type;
343
95f1b6e43214 - Removed TOK.Special and added an own entry for each special token.
aziz
parents: 327
diff changeset
237 if (t.isSpecialToken)
95f1b6e43214 - Removed TOK.Special and added an own entry for each special token.
aziz
parents: 327
diff changeset
238 finalizeSpecialToken(t);
5
79b4e8848794 - Started writing XML generator.
aziz
parents: 4
diff changeset
239 return;
79b4e8848794 - Started writing XML generator.
aziz
parents: 4
diff changeset
240 }
79b4e8848794 - Started writing XML generator.
aziz
parents: 4
diff changeset
241
15
c70c028e47dd - Started implementation of lexing numbers.
aziz
parents: 14
diff changeset
242 if (isdigit(c))
c70c028e47dd - Started implementation of lexing numbers.
aziz
parents: 14
diff changeset
243 return scanNumber(t);
c70c028e47dd - Started implementation of lexing numbers.
aziz
parents: 14
diff changeset
244
8
d4ba94a5a282 - Parsing /* */ comments now.
aziz
parents: 7
diff changeset
245 if (c == '/')
5
79b4e8848794 - Started writing XML generator.
aziz
parents: 4
diff changeset
246 {
8
d4ba94a5a282 - Parsing /* */ comments now.
aziz
parents: 7
diff changeset
247 c = *++p;
14
cdf788d8bdaf - Parsing /= now.
aziz
parents: 13
diff changeset
248 switch(c)
5
79b4e8848794 - Started writing XML generator.
aziz
parents: 4
diff changeset
249 {
18
c48d2125f1e2 - Moved code for scanning character literals to separate function.
aziz
parents: 17
diff changeset
250 case '=':
14
cdf788d8bdaf - Parsing /= now.
aziz
parents: 13
diff changeset
251 ++p;
32
d7011daa4740 - Added missing commas after the items in the messages table.
aziz
parents: 31
diff changeset
252 t.type = TOK.DivAssign;
14
cdf788d8bdaf - Parsing /= now.
aziz
parents: 13
diff changeset
253 t.end = p;
cdf788d8bdaf - Parsing /= now.
aziz
parents: 13
diff changeset
254 return;
18
c48d2125f1e2 - Moved code for scanning character literals to separate function.
aziz
parents: 17
diff changeset
255 case '+':
8
d4ba94a5a282 - Parsing /* */ comments now.
aziz
parents: 7
diff changeset
256 uint level = 1;
32
d7011daa4740 - Added missing commas after the items in the messages table.
aziz
parents: 31
diff changeset
257 while (1)
d7011daa4740 - Added missing commas after the items in the messages table.
aziz
parents: 31
diff changeset
258 {
d7011daa4740 - Added missing commas after the items in the messages table.
aziz
parents: 31
diff changeset
259 c = *++p;
42
c6a9974a6e3c - Optimized scanner of nested comments.
aziz
parents: 41
diff changeset
260 LswitchNC: // only jumped to from default case of next switch(c)
32
d7011daa4740 - Added missing commas after the items in the messages table.
aziz
parents: 31
diff changeset
261 switch (c)
d7011daa4740 - Added missing commas after the items in the messages table.
aziz
parents: 31
diff changeset
262 {
d7011daa4740 - Added missing commas after the items in the messages table.
aziz
parents: 31
diff changeset
263 case '\r':
d7011daa4740 - Added missing commas after the items in the messages table.
aziz
parents: 31
diff changeset
264 if (p[1] == '\n')
d7011daa4740 - Added missing commas after the items in the messages table.
aziz
parents: 31
diff changeset
265 ++p;
d7011daa4740 - Added missing commas after the items in the messages table.
aziz
parents: 31
diff changeset
266 case '\n':
d7011daa4740 - Added missing commas after the items in the messages table.
aziz
parents: 31
diff changeset
267 ++loc;
d7011daa4740 - Added missing commas after the items in the messages table.
aziz
parents: 31
diff changeset
268 continue;
d7011daa4740 - Added missing commas after the items in the messages table.
aziz
parents: 31
diff changeset
269 case 0, _Z_:
d7011daa4740 - Added missing commas after the items in the messages table.
aziz
parents: 31
diff changeset
270 error(MID.UnterminatedNestedComment);
d7011daa4740 - Added missing commas after the items in the messages table.
aziz
parents: 31
diff changeset
271 goto LreturnNC;
42
c6a9974a6e3c - Optimized scanner of nested comments.
aziz
parents: 41
diff changeset
272 default:
c6a9974a6e3c - Optimized scanner of nested comments.
aziz
parents: 41
diff changeset
273 }
c6a9974a6e3c - Optimized scanner of nested comments.
aziz
parents: 41
diff changeset
274
c6a9974a6e3c - Optimized scanner of nested comments.
aziz
parents: 41
diff changeset
275 c <<= 8;
c6a9974a6e3c - Optimized scanner of nested comments.
aziz
parents: 41
diff changeset
276 c |= *++p;
c6a9974a6e3c - Optimized scanner of nested comments.
aziz
parents: 41
diff changeset
277 switch (c)
c6a9974a6e3c - Optimized scanner of nested comments.
aziz
parents: 41
diff changeset
278 {
c6a9974a6e3c - Optimized scanner of nested comments.
aziz
parents: 41
diff changeset
279 case 0x2F2B: // /+
c6a9974a6e3c - Optimized scanner of nested comments.
aziz
parents: 41
diff changeset
280 ++level;
c6a9974a6e3c - Optimized scanner of nested comments.
aziz
parents: 41
diff changeset
281 continue;
c6a9974a6e3c - Optimized scanner of nested comments.
aziz
parents: 41
diff changeset
282 case 0x2B2F: // +/
c6a9974a6e3c - Optimized scanner of nested comments.
aziz
parents: 41
diff changeset
283 if (--level == 0)
c6a9974a6e3c - Optimized scanner of nested comments.
aziz
parents: 41
diff changeset
284 {
c6a9974a6e3c - Optimized scanner of nested comments.
aziz
parents: 41
diff changeset
285 ++p;
c6a9974a6e3c - Optimized scanner of nested comments.
aziz
parents: 41
diff changeset
286 LreturnNC:
c6a9974a6e3c - Optimized scanner of nested comments.
aziz
parents: 41
diff changeset
287 t.type = TOK.Comment;
c6a9974a6e3c - Optimized scanner of nested comments.
aziz
parents: 41
diff changeset
288 t.end = p;
c6a9974a6e3c - Optimized scanner of nested comments.
aziz
parents: 41
diff changeset
289 return;
32
d7011daa4740 - Added missing commas after the items in the messages table.
aziz
parents: 31
diff changeset
290 }
d7011daa4740 - Added missing commas after the items in the messages table.
aziz
parents: 31
diff changeset
291 continue;
42
c6a9974a6e3c - Optimized scanner of nested comments.
aziz
parents: 41
diff changeset
292 case 0xE280: // LS[0..1] || PS[0..1]
c6a9974a6e3c - Optimized scanner of nested comments.
aziz
parents: 41
diff changeset
293 if (p[1] == LS[2] || p[1] == PS[2])
c6a9974a6e3c - Optimized scanner of nested comments.
aziz
parents: 41
diff changeset
294 {
c6a9974a6e3c - Optimized scanner of nested comments.
aziz
parents: 41
diff changeset
295 ++loc;
c6a9974a6e3c - Optimized scanner of nested comments.
aziz
parents: 41
diff changeset
296 ++p;
c6a9974a6e3c - Optimized scanner of nested comments.
aziz
parents: 41
diff changeset
297 }
43
1845c23dd056 - Matched some parts of the scanner of block comments to the scanner of nested comments.
aziz
parents: 42
diff changeset
298 continue;
32
d7011daa4740 - Added missing commas after the items in the messages table.
aziz
parents: 31
diff changeset
299 default:
42
c6a9974a6e3c - Optimized scanner of nested comments.
aziz
parents: 41
diff changeset
300 c &= char.max;
c6a9974a6e3c - Optimized scanner of nested comments.
aziz
parents: 41
diff changeset
301 goto LswitchNC;
32
d7011daa4740 - Added missing commas after the items in the messages table.
aziz
parents: 31
diff changeset
302 }
d7011daa4740 - Added missing commas after the items in the messages table.
aziz
parents: 31
diff changeset
303 }
d7011daa4740 - Added missing commas after the items in the messages table.
aziz
parents: 31
diff changeset
304 case '*':
d7011daa4740 - Added missing commas after the items in the messages table.
aziz
parents: 31
diff changeset
305 while (1)
7
07e45c06a024 - Parsing nested comments correctly now.
aziz
parents: 5
diff changeset
306 {
43
1845c23dd056 - Matched some parts of the scanner of block comments to the scanner of nested comments.
aziz
parents: 42
diff changeset
307 c = *++p;
1845c23dd056 - Matched some parts of the scanner of block comments to the scanner of nested comments.
aziz
parents: 42
diff changeset
308 LswitchBC: // only jumped to from default case of next switch(c)
32
d7011daa4740 - Added missing commas after the items in the messages table.
aziz
parents: 31
diff changeset
309 switch (c)
8
d4ba94a5a282 - Parsing /* */ comments now.
aziz
parents: 7
diff changeset
310 {
32
d7011daa4740 - Added missing commas after the items in the messages table.
aziz
parents: 31
diff changeset
311 case '\r':
d7011daa4740 - Added missing commas after the items in the messages table.
aziz
parents: 31
diff changeset
312 if (p[1] == '\n')
d7011daa4740 - Added missing commas after the items in the messages table.
aziz
parents: 31
diff changeset
313 ++p;
d7011daa4740 - Added missing commas after the items in the messages table.
aziz
parents: 31
diff changeset
314 case '\n':
d7011daa4740 - Added missing commas after the items in the messages table.
aziz
parents: 31
diff changeset
315 ++loc;
d7011daa4740 - Added missing commas after the items in the messages table.
aziz
parents: 31
diff changeset
316 continue;
d7011daa4740 - Added missing commas after the items in the messages table.
aziz
parents: 31
diff changeset
317 case 0, _Z_:
d7011daa4740 - Added missing commas after the items in the messages table.
aziz
parents: 31
diff changeset
318 error(MID.UnterminatedBlockComment);
d7011daa4740 - Added missing commas after the items in the messages table.
aziz
parents: 31
diff changeset
319 goto LreturnBC;
d7011daa4740 - Added missing commas after the items in the messages table.
aziz
parents: 31
diff changeset
320 default:
8
d4ba94a5a282 - Parsing /* */ comments now.
aziz
parents: 7
diff changeset
321 }
41
2b7be1d67d4d - Optimized scanner of block comments.
aziz
parents: 40
diff changeset
322
2b7be1d67d4d - Optimized scanner of block comments.
aziz
parents: 40
diff changeset
323 c <<= 8;
2b7be1d67d4d - Optimized scanner of block comments.
aziz
parents: 40
diff changeset
324 c |= *++p;
2b7be1d67d4d - Optimized scanner of block comments.
aziz
parents: 40
diff changeset
325 switch (c)
2b7be1d67d4d - Optimized scanner of block comments.
aziz
parents: 40
diff changeset
326 {
2b7be1d67d4d - Optimized scanner of block comments.
aziz
parents: 40
diff changeset
327 case 0x2A2F: // */
2b7be1d67d4d - Optimized scanner of block comments.
aziz
parents: 40
diff changeset
328 ++p;
2b7be1d67d4d - Optimized scanner of block comments.
aziz
parents: 40
diff changeset
329 LreturnBC:
2b7be1d67d4d - Optimized scanner of block comments.
aziz
parents: 40
diff changeset
330 t.type = TOK.Comment;
2b7be1d67d4d - Optimized scanner of block comments.
aziz
parents: 40
diff changeset
331 t.end = p;
2b7be1d67d4d - Optimized scanner of block comments.
aziz
parents: 40
diff changeset
332 return;
2b7be1d67d4d - Optimized scanner of block comments.
aziz
parents: 40
diff changeset
333 case 0xE280: // LS[0..1] || PS[0..1]
2b7be1d67d4d - Optimized scanner of block comments.
aziz
parents: 40
diff changeset
334 if (p[1] == LS[2] || p[1] == PS[2])
2b7be1d67d4d - Optimized scanner of block comments.
aziz
parents: 40
diff changeset
335 {
2b7be1d67d4d - Optimized scanner of block comments.
aziz
parents: 40
diff changeset
336 ++loc;
43
1845c23dd056 - Matched some parts of the scanner of block comments to the scanner of nested comments.
aziz
parents: 42
diff changeset
337 ++p;
41
2b7be1d67d4d - Optimized scanner of block comments.
aziz
parents: 40
diff changeset
338 }
43
1845c23dd056 - Matched some parts of the scanner of block comments to the scanner of nested comments.
aziz
parents: 42
diff changeset
339 continue;
41
2b7be1d67d4d - Optimized scanner of block comments.
aziz
parents: 40
diff changeset
340 default:
2b7be1d67d4d - Optimized scanner of block comments.
aziz
parents: 40
diff changeset
341 c &= char.max;
43
1845c23dd056 - Matched some parts of the scanner of block comments to the scanner of nested comments.
aziz
parents: 42
diff changeset
342 goto LswitchBC;
41
2b7be1d67d4d - Optimized scanner of block comments.
aziz
parents: 40
diff changeset
343 }
32
d7011daa4740 - Added missing commas after the items in the messages table.
aziz
parents: 31
diff changeset
344 }
d7011daa4740 - Added missing commas after the items in the messages table.
aziz
parents: 31
diff changeset
345 assert(0);
d7011daa4740 - Added missing commas after the items in the messages table.
aziz
parents: 31
diff changeset
346 case '/':
d7011daa4740 - Added missing commas after the items in the messages table.
aziz
parents: 31
diff changeset
347 while (1)
7
07e45c06a024 - Parsing nested comments correctly now.
aziz
parents: 5
diff changeset
348 {
8
d4ba94a5a282 - Parsing /* */ comments now.
aziz
parents: 7
diff changeset
349 c = *++p;
32
d7011daa4740 - Added missing commas after the items in the messages table.
aziz
parents: 31
diff changeset
350 switch (c)
d7011daa4740 - Added missing commas after the items in the messages table.
aziz
parents: 31
diff changeset
351 {
d7011daa4740 - Added missing commas after the items in the messages table.
aziz
parents: 31
diff changeset
352 case '\r':
d7011daa4740 - Added missing commas after the items in the messages table.
aziz
parents: 31
diff changeset
353 if (p[1] == '\n')
d7011daa4740 - Added missing commas after the items in the messages table.
aziz
parents: 31
diff changeset
354 ++p;
d7011daa4740 - Added missing commas after the items in the messages table.
aziz
parents: 31
diff changeset
355 case '\n':
d7011daa4740 - Added missing commas after the items in the messages table.
aziz
parents: 31
diff changeset
356 case 0, _Z_:
11
dffcdaa7c47a - Added Unicode line and paragraph separators.
aziz
parents: 10
diff changeset
357 break;
32
d7011daa4740 - Added missing commas after the items in the messages table.
aziz
parents: 31
diff changeset
358 case LS[0]:
d7011daa4740 - Added missing commas after the items in the messages table.
aziz
parents: 31
diff changeset
359 if (p[1] == LS[1] && (p[2] == LS[2] || p[2] == PS[2]))
d7011daa4740 - Added missing commas after the items in the messages table.
aziz
parents: 31
diff changeset
360 break;
d7011daa4740 - Added missing commas after the items in the messages table.
aziz
parents: 31
diff changeset
361 continue;
d7011daa4740 - Added missing commas after the items in the messages table.
aziz
parents: 31
diff changeset
362 default:
d7011daa4740 - Added missing commas after the items in the messages table.
aziz
parents: 31
diff changeset
363 continue;
d7011daa4740 - Added missing commas after the items in the messages table.
aziz
parents: 31
diff changeset
364 }
d7011daa4740 - Added missing commas after the items in the messages table.
aziz
parents: 31
diff changeset
365 t.type = TOK.Comment;
d7011daa4740 - Added missing commas after the items in the messages table.
aziz
parents: 31
diff changeset
366 t.end = p;
d7011daa4740 - Added missing commas after the items in the messages table.
aziz
parents: 31
diff changeset
367 return;
d7011daa4740 - Added missing commas after the items in the messages table.
aziz
parents: 31
diff changeset
368 }
d7011daa4740 - Added missing commas after the items in the messages table.
aziz
parents: 31
diff changeset
369 default:
d7011daa4740 - Added missing commas after the items in the messages table.
aziz
parents: 31
diff changeset
370 t.type = TOK.Div;
10
3ee65d6e39c9 - Parsing // comments now.
aziz
parents: 9
diff changeset
371 t.end = p;
3ee65d6e39c9 - Parsing // comments now.
aziz
parents: 9
diff changeset
372 return;
3ee65d6e39c9 - Parsing // comments now.
aziz
parents: 9
diff changeset
373 }
5
79b4e8848794 - Started writing XML generator.
aziz
parents: 4
diff changeset
374 }
79b4e8848794 - Started writing XML generator.
aziz
parents: 4
diff changeset
375
36
3c7210a722f7 - Added code for parsing LorEorG, LorG, LessEqual, LessThan, LShiftAssign and LShift tokens.
aziz
parents: 35
diff changeset
376 switch (c)
20
d6adfbd7c513 - Added code for parsing braces.
aziz
parents: 19
diff changeset
377 {
48
c2e0e0269c28 - Added code for scanning escape string literals.
aziz
parents: 47
diff changeset
378 case '\'':
c2e0e0269c28 - Added code for scanning escape string literals.
aziz
parents: 47
diff changeset
379 return scanCharacterLiteral(t);
c2e0e0269c28 - Added code for scanning escape string literals.
aziz
parents: 47
diff changeset
380 case '`':
c2e0e0269c28 - Added code for scanning escape string literals.
aziz
parents: 47
diff changeset
381 return scanRawStringLiteral(t);
c2e0e0269c28 - Added code for scanning escape string literals.
aziz
parents: 47
diff changeset
382 case '"':
c2e0e0269c28 - Added code for scanning escape string literals.
aziz
parents: 47
diff changeset
383 return scanNormalStringLiteral(t);
c2e0e0269c28 - Added code for scanning escape string literals.
aziz
parents: 47
diff changeset
384 case '\\':
c2e0e0269c28 - Added code for scanning escape string literals.
aziz
parents: 47
diff changeset
385 char[] buffer;
c2e0e0269c28 - Added code for scanning escape string literals.
aziz
parents: 47
diff changeset
386 do
c2e0e0269c28 - Added code for scanning escape string literals.
aziz
parents: 47
diff changeset
387 {
c2e0e0269c28 - Added code for scanning escape string literals.
aziz
parents: 47
diff changeset
388 ++p;
c2e0e0269c28 - Added code for scanning escape string literals.
aziz
parents: 47
diff changeset
389 c = scanEscapeSequence();
c2e0e0269c28 - Added code for scanning escape string literals.
aziz
parents: 47
diff changeset
390 if (c < 128)
c2e0e0269c28 - Added code for scanning escape string literals.
aziz
parents: 47
diff changeset
391 buffer ~= c;
c2e0e0269c28 - Added code for scanning escape string literals.
aziz
parents: 47
diff changeset
392 else
c2e0e0269c28 - Added code for scanning escape string literals.
aziz
parents: 47
diff changeset
393 encodeUTF8(buffer, c);
c2e0e0269c28 - Added code for scanning escape string literals.
aziz
parents: 47
diff changeset
394 } while (*p == '\\')
c2e0e0269c28 - Added code for scanning escape string literals.
aziz
parents: 47
diff changeset
395 buffer ~= 0;
c2e0e0269c28 - Added code for scanning escape string literals.
aziz
parents: 47
diff changeset
396 t.type = TOK.String;
c2e0e0269c28 - Added code for scanning escape string literals.
aziz
parents: 47
diff changeset
397 t.str = buffer;
c2e0e0269c28 - Added code for scanning escape string literals.
aziz
parents: 47
diff changeset
398 t.end = p;
c2e0e0269c28 - Added code for scanning escape string literals.
aziz
parents: 47
diff changeset
399 return;
38
640c45aaaaee - Added code for parsing GreaterEqual, Greater, RShiftAssign, RShift, URShiftAssign and URShift tokens.
aziz
parents: 37
diff changeset
400 case '>': /* > >= >> >>= >>> >>>= */
640c45aaaaee - Added code for parsing GreaterEqual, Greater, RShiftAssign, RShift, URShiftAssign and URShift tokens.
aziz
parents: 37
diff changeset
401 c = *++p;
640c45aaaaee - Added code for parsing GreaterEqual, Greater, RShiftAssign, RShift, URShiftAssign and URShift tokens.
aziz
parents: 37
diff changeset
402 switch (c)
640c45aaaaee - Added code for parsing GreaterEqual, Greater, RShiftAssign, RShift, URShiftAssign and URShift tokens.
aziz
parents: 37
diff changeset
403 {
640c45aaaaee - Added code for parsing GreaterEqual, Greater, RShiftAssign, RShift, URShiftAssign and URShift tokens.
aziz
parents: 37
diff changeset
404 case '=':
640c45aaaaee - Added code for parsing GreaterEqual, Greater, RShiftAssign, RShift, URShiftAssign and URShift tokens.
aziz
parents: 37
diff changeset
405 t.type = TOK.GreaterEqual;
640c45aaaaee - Added code for parsing GreaterEqual, Greater, RShiftAssign, RShift, URShiftAssign and URShift tokens.
aziz
parents: 37
diff changeset
406 goto Lcommon;
640c45aaaaee - Added code for parsing GreaterEqual, Greater, RShiftAssign, RShift, URShiftAssign and URShift tokens.
aziz
parents: 37
diff changeset
407 case '>':
640c45aaaaee - Added code for parsing GreaterEqual, Greater, RShiftAssign, RShift, URShiftAssign and URShift tokens.
aziz
parents: 37
diff changeset
408 if (p[1] == '>')
640c45aaaaee - Added code for parsing GreaterEqual, Greater, RShiftAssign, RShift, URShiftAssign and URShift tokens.
aziz
parents: 37
diff changeset
409 {
640c45aaaaee - Added code for parsing GreaterEqual, Greater, RShiftAssign, RShift, URShiftAssign and URShift tokens.
aziz
parents: 37
diff changeset
410 ++p;
640c45aaaaee - Added code for parsing GreaterEqual, Greater, RShiftAssign, RShift, URShiftAssign and URShift tokens.
aziz
parents: 37
diff changeset
411 if (p[1] == '=')
640c45aaaaee - Added code for parsing GreaterEqual, Greater, RShiftAssign, RShift, URShiftAssign and URShift tokens.
aziz
parents: 37
diff changeset
412 { ++p;
640c45aaaaee - Added code for parsing GreaterEqual, Greater, RShiftAssign, RShift, URShiftAssign and URShift tokens.
aziz
parents: 37
diff changeset
413 t.type = TOK.URShiftAssign;
640c45aaaaee - Added code for parsing GreaterEqual, Greater, RShiftAssign, RShift, URShiftAssign and URShift tokens.
aziz
parents: 37
diff changeset
414 }
640c45aaaaee - Added code for parsing GreaterEqual, Greater, RShiftAssign, RShift, URShiftAssign and URShift tokens.
aziz
parents: 37
diff changeset
415 else
640c45aaaaee - Added code for parsing GreaterEqual, Greater, RShiftAssign, RShift, URShiftAssign and URShift tokens.
aziz
parents: 37
diff changeset
416 t.type = TOK.URShift;
640c45aaaaee - Added code for parsing GreaterEqual, Greater, RShiftAssign, RShift, URShiftAssign and URShift tokens.
aziz
parents: 37
diff changeset
417 }
640c45aaaaee - Added code for parsing GreaterEqual, Greater, RShiftAssign, RShift, URShiftAssign and URShift tokens.
aziz
parents: 37
diff changeset
418 else if (p[1] == '=')
640c45aaaaee - Added code for parsing GreaterEqual, Greater, RShiftAssign, RShift, URShiftAssign and URShift tokens.
aziz
parents: 37
diff changeset
419 {
640c45aaaaee - Added code for parsing GreaterEqual, Greater, RShiftAssign, RShift, URShiftAssign and URShift tokens.
aziz
parents: 37
diff changeset
420 ++p;
640c45aaaaee - Added code for parsing GreaterEqual, Greater, RShiftAssign, RShift, URShiftAssign and URShift tokens.
aziz
parents: 37
diff changeset
421 t.type = TOK.RShiftAssign;
640c45aaaaee - Added code for parsing GreaterEqual, Greater, RShiftAssign, RShift, URShiftAssign and URShift tokens.
aziz
parents: 37
diff changeset
422 }
640c45aaaaee - Added code for parsing GreaterEqual, Greater, RShiftAssign, RShift, URShiftAssign and URShift tokens.
aziz
parents: 37
diff changeset
423 else
640c45aaaaee - Added code for parsing GreaterEqual, Greater, RShiftAssign, RShift, URShiftAssign and URShift tokens.
aziz
parents: 37
diff changeset
424 t.type = TOK.RShift;
640c45aaaaee - Added code for parsing GreaterEqual, Greater, RShiftAssign, RShift, URShiftAssign and URShift tokens.
aziz
parents: 37
diff changeset
425 goto Lcommon;
640c45aaaaee - Added code for parsing GreaterEqual, Greater, RShiftAssign, RShift, URShiftAssign and URShift tokens.
aziz
parents: 37
diff changeset
426 default:
640c45aaaaee - Added code for parsing GreaterEqual, Greater, RShiftAssign, RShift, URShiftAssign and URShift tokens.
aziz
parents: 37
diff changeset
427 t.type = TOK.Greater;
640c45aaaaee - Added code for parsing GreaterEqual, Greater, RShiftAssign, RShift, URShiftAssign and URShift tokens.
aziz
parents: 37
diff changeset
428 goto Lcommon2;
640c45aaaaee - Added code for parsing GreaterEqual, Greater, RShiftAssign, RShift, URShiftAssign and URShift tokens.
aziz
parents: 37
diff changeset
429 }
640c45aaaaee - Added code for parsing GreaterEqual, Greater, RShiftAssign, RShift, URShiftAssign and URShift tokens.
aziz
parents: 37
diff changeset
430 assert(0);
36
3c7210a722f7 - Added code for parsing LorEorG, LorG, LessEqual, LessThan, LShiftAssign and LShift tokens.
aziz
parents: 35
diff changeset
431 case '<': /* < <= <> <>= << <<= */
3c7210a722f7 - Added code for parsing LorEorG, LorG, LessEqual, LessThan, LShiftAssign and LShift tokens.
aziz
parents: 35
diff changeset
432 c = *++p;
3c7210a722f7 - Added code for parsing LorEorG, LorG, LessEqual, LessThan, LShiftAssign and LShift tokens.
aziz
parents: 35
diff changeset
433 switch (c)
3c7210a722f7 - Added code for parsing LorEorG, LorG, LessEqual, LessThan, LShiftAssign and LShift tokens.
aziz
parents: 35
diff changeset
434 {
3c7210a722f7 - Added code for parsing LorEorG, LorG, LessEqual, LessThan, LShiftAssign and LShift tokens.
aziz
parents: 35
diff changeset
435 case '=':
3c7210a722f7 - Added code for parsing LorEorG, LorG, LessEqual, LessThan, LShiftAssign and LShift tokens.
aziz
parents: 35
diff changeset
436 t.type = TOK.LessEqual;
3c7210a722f7 - Added code for parsing LorEorG, LorG, LessEqual, LessThan, LShiftAssign and LShift tokens.
aziz
parents: 35
diff changeset
437 goto Lcommon;
3c7210a722f7 - Added code for parsing LorEorG, LorG, LessEqual, LessThan, LShiftAssign and LShift tokens.
aziz
parents: 35
diff changeset
438 case '<':
3c7210a722f7 - Added code for parsing LorEorG, LorG, LessEqual, LessThan, LShiftAssign and LShift tokens.
aziz
parents: 35
diff changeset
439 if (p[1] == '=') {
3c7210a722f7 - Added code for parsing LorEorG, LorG, LessEqual, LessThan, LShiftAssign and LShift tokens.
aziz
parents: 35
diff changeset
440 ++p;
3c7210a722f7 - Added code for parsing LorEorG, LorG, LessEqual, LessThan, LShiftAssign and LShift tokens.
aziz
parents: 35
diff changeset
441 t.type = TOK.LShiftAssign;
3c7210a722f7 - Added code for parsing LorEorG, LorG, LessEqual, LessThan, LShiftAssign and LShift tokens.
aziz
parents: 35
diff changeset
442 }
3c7210a722f7 - Added code for parsing LorEorG, LorG, LessEqual, LessThan, LShiftAssign and LShift tokens.
aziz
parents: 35
diff changeset
443 else
3c7210a722f7 - Added code for parsing LorEorG, LorG, LessEqual, LessThan, LShiftAssign and LShift tokens.
aziz
parents: 35
diff changeset
444 t.type = TOK.LShift;
3c7210a722f7 - Added code for parsing LorEorG, LorG, LessEqual, LessThan, LShiftAssign and LShift tokens.
aziz
parents: 35
diff changeset
445 goto Lcommon;
3c7210a722f7 - Added code for parsing LorEorG, LorG, LessEqual, LessThan, LShiftAssign and LShift tokens.
aziz
parents: 35
diff changeset
446 case '>':
3c7210a722f7 - Added code for parsing LorEorG, LorG, LessEqual, LessThan, LShiftAssign and LShift tokens.
aziz
parents: 35
diff changeset
447 if (p[1] == '=') {
3c7210a722f7 - Added code for parsing LorEorG, LorG, LessEqual, LessThan, LShiftAssign and LShift tokens.
aziz
parents: 35
diff changeset
448 ++p;
3c7210a722f7 - Added code for parsing LorEorG, LorG, LessEqual, LessThan, LShiftAssign and LShift tokens.
aziz
parents: 35
diff changeset
449 t.type = TOK.LorEorG;
3c7210a722f7 - Added code for parsing LorEorG, LorG, LessEqual, LessThan, LShiftAssign and LShift tokens.
aziz
parents: 35
diff changeset
450 }
3c7210a722f7 - Added code for parsing LorEorG, LorG, LessEqual, LessThan, LShiftAssign and LShift tokens.
aziz
parents: 35
diff changeset
451 else
3c7210a722f7 - Added code for parsing LorEorG, LorG, LessEqual, LessThan, LShiftAssign and LShift tokens.
aziz
parents: 35
diff changeset
452 t.type = TOK.LorG;
3c7210a722f7 - Added code for parsing LorEorG, LorG, LessEqual, LessThan, LShiftAssign and LShift tokens.
aziz
parents: 35
diff changeset
453 goto Lcommon;
3c7210a722f7 - Added code for parsing LorEorG, LorG, LessEqual, LessThan, LShiftAssign and LShift tokens.
aziz
parents: 35
diff changeset
454 default:
38
640c45aaaaee - Added code for parsing GreaterEqual, Greater, RShiftAssign, RShift, URShiftAssign and URShift tokens.
aziz
parents: 37
diff changeset
455 t.type = TOK.Less;
36
3c7210a722f7 - Added code for parsing LorEorG, LorG, LessEqual, LessThan, LShiftAssign and LShift tokens.
aziz
parents: 35
diff changeset
456 goto Lcommon2;
3c7210a722f7 - Added code for parsing LorEorG, LorG, LessEqual, LessThan, LShiftAssign and LShift tokens.
aziz
parents: 35
diff changeset
457 }
3c7210a722f7 - Added code for parsing LorEorG, LorG, LessEqual, LessThan, LShiftAssign and LShift tokens.
aziz
parents: 35
diff changeset
458 assert(0);
37
7f3bcb97d017 - Added code for parsing LorEorG, LorG, LessEqual, LessThan, LShiftAssign and LShift tokens.
aziz
parents: 36
diff changeset
459 case '!': /* ! !< !> !<= !>= !<> !<>= */
35
c470b9356e35 - Added code for parsing Unordered, UorE, UorG, UorGorE, UorL, UorLorE, NotEqual and Not tokens.
aziz
parents: 34
diff changeset
460 c = *++p;
c470b9356e35 - Added code for parsing Unordered, UorE, UorG, UorGorE, UorL, UorLorE, NotEqual and Not tokens.
aziz
parents: 34
diff changeset
461 switch (c)
c470b9356e35 - Added code for parsing Unordered, UorE, UorG, UorGorE, UorL, UorLorE, NotEqual and Not tokens.
aziz
parents: 34
diff changeset
462 {
c470b9356e35 - Added code for parsing Unordered, UorE, UorG, UorGorE, UorL, UorLorE, NotEqual and Not tokens.
aziz
parents: 34
diff changeset
463 case '<':
c470b9356e35 - Added code for parsing Unordered, UorE, UorG, UorGorE, UorL, UorLorE, NotEqual and Not tokens.
aziz
parents: 34
diff changeset
464 c = *++p;
c470b9356e35 - Added code for parsing Unordered, UorE, UorG, UorGorE, UorL, UorLorE, NotEqual and Not tokens.
aziz
parents: 34
diff changeset
465 if (c == '>')
c470b9356e35 - Added code for parsing Unordered, UorE, UorG, UorGorE, UorL, UorLorE, NotEqual and Not tokens.
aziz
parents: 34
diff changeset
466 {
c470b9356e35 - Added code for parsing Unordered, UorE, UorG, UorGorE, UorL, UorLorE, NotEqual and Not tokens.
aziz
parents: 34
diff changeset
467 if (p[1] == '=') {
c470b9356e35 - Added code for parsing Unordered, UorE, UorG, UorGorE, UorL, UorLorE, NotEqual and Not tokens.
aziz
parents: 34
diff changeset
468 ++p;
c470b9356e35 - Added code for parsing Unordered, UorE, UorG, UorGorE, UorL, UorLorE, NotEqual and Not tokens.
aziz
parents: 34
diff changeset
469 t.type = TOK.Unordered;
c470b9356e35 - Added code for parsing Unordered, UorE, UorG, UorGorE, UorL, UorLorE, NotEqual and Not tokens.
aziz
parents: 34
diff changeset
470 }
c470b9356e35 - Added code for parsing Unordered, UorE, UorG, UorGorE, UorL, UorLorE, NotEqual and Not tokens.
aziz
parents: 34
diff changeset
471 else
c470b9356e35 - Added code for parsing Unordered, UorE, UorG, UorGorE, UorL, UorLorE, NotEqual and Not tokens.
aziz
parents: 34
diff changeset
472 t.type = TOK.UorE;
c470b9356e35 - Added code for parsing Unordered, UorE, UorG, UorGorE, UorL, UorLorE, NotEqual and Not tokens.
aziz
parents: 34
diff changeset
473 }
c470b9356e35 - Added code for parsing Unordered, UorE, UorG, UorGorE, UorL, UorLorE, NotEqual and Not tokens.
aziz
parents: 34
diff changeset
474 else if (c == '=')
c470b9356e35 - Added code for parsing Unordered, UorE, UorG, UorGorE, UorL, UorLorE, NotEqual and Not tokens.
aziz
parents: 34
diff changeset
475 {
c470b9356e35 - Added code for parsing Unordered, UorE, UorG, UorGorE, UorL, UorLorE, NotEqual and Not tokens.
aziz
parents: 34
diff changeset
476 t.type = TOK.UorG;
c470b9356e35 - Added code for parsing Unordered, UorE, UorG, UorGorE, UorL, UorLorE, NotEqual and Not tokens.
aziz
parents: 34
diff changeset
477 }
c470b9356e35 - Added code for parsing Unordered, UorE, UorG, UorGorE, UorL, UorLorE, NotEqual and Not tokens.
aziz
parents: 34
diff changeset
478 else {
c470b9356e35 - Added code for parsing Unordered, UorE, UorG, UorGorE, UorL, UorLorE, NotEqual and Not tokens.
aziz
parents: 34
diff changeset
479 t.type = TOK.UorGorE;
c470b9356e35 - Added code for parsing Unordered, UorE, UorG, UorGorE, UorL, UorLorE, NotEqual and Not tokens.
aziz
parents: 34
diff changeset
480 goto Lcommon2;
c470b9356e35 - Added code for parsing Unordered, UorE, UorG, UorGorE, UorL, UorLorE, NotEqual and Not tokens.
aziz
parents: 34
diff changeset
481 }
c470b9356e35 - Added code for parsing Unordered, UorE, UorG, UorGorE, UorL, UorLorE, NotEqual and Not tokens.
aziz
parents: 34
diff changeset
482 goto Lcommon;
c470b9356e35 - Added code for parsing Unordered, UorE, UorG, UorGorE, UorL, UorLorE, NotEqual and Not tokens.
aziz
parents: 34
diff changeset
483 case '>':
c470b9356e35 - Added code for parsing Unordered, UorE, UorG, UorGorE, UorL, UorLorE, NotEqual and Not tokens.
aziz
parents: 34
diff changeset
484 if (p[1] == '=')
c470b9356e35 - Added code for parsing Unordered, UorE, UorG, UorGorE, UorL, UorLorE, NotEqual and Not tokens.
aziz
parents: 34
diff changeset
485 {
c470b9356e35 - Added code for parsing Unordered, UorE, UorG, UorGorE, UorL, UorLorE, NotEqual and Not tokens.
aziz
parents: 34
diff changeset
486 ++p;
c470b9356e35 - Added code for parsing Unordered, UorE, UorG, UorGorE, UorL, UorLorE, NotEqual and Not tokens.
aziz
parents: 34
diff changeset
487 t.type = TOK.UorL;
c470b9356e35 - Added code for parsing Unordered, UorE, UorG, UorGorE, UorL, UorLorE, NotEqual and Not tokens.
aziz
parents: 34
diff changeset
488 }
c470b9356e35 - Added code for parsing Unordered, UorE, UorG, UorGorE, UorL, UorLorE, NotEqual and Not tokens.
aziz
parents: 34
diff changeset
489 else
c470b9356e35 - Added code for parsing Unordered, UorE, UorG, UorGorE, UorL, UorLorE, NotEqual and Not tokens.
aziz
parents: 34
diff changeset
490 t.type = TOK.UorLorE;
c470b9356e35 - Added code for parsing Unordered, UorE, UorG, UorGorE, UorL, UorLorE, NotEqual and Not tokens.
aziz
parents: 34
diff changeset
491 goto Lcommon;
c470b9356e35 - Added code for parsing Unordered, UorE, UorG, UorGorE, UorL, UorLorE, NotEqual and Not tokens.
aziz
parents: 34
diff changeset
492 case '=':
c470b9356e35 - Added code for parsing Unordered, UorE, UorG, UorGorE, UorL, UorLorE, NotEqual and Not tokens.
aziz
parents: 34
diff changeset
493 t.type = TOK.NotEqual;
c470b9356e35 - Added code for parsing Unordered, UorE, UorG, UorGorE, UorL, UorLorE, NotEqual and Not tokens.
aziz
parents: 34
diff changeset
494 goto Lcommon;
c470b9356e35 - Added code for parsing Unordered, UorE, UorG, UorGorE, UorL, UorLorE, NotEqual and Not tokens.
aziz
parents: 34
diff changeset
495 default:
c470b9356e35 - Added code for parsing Unordered, UorE, UorG, UorGorE, UorL, UorLorE, NotEqual and Not tokens.
aziz
parents: 34
diff changeset
496 t.type = TOK.Not;
c470b9356e35 - Added code for parsing Unordered, UorE, UorG, UorGorE, UorL, UorLorE, NotEqual and Not tokens.
aziz
parents: 34
diff changeset
497 goto Lcommon2;
c470b9356e35 - Added code for parsing Unordered, UorE, UorG, UorGorE, UorL, UorLorE, NotEqual and Not tokens.
aziz
parents: 34
diff changeset
498 }
c470b9356e35 - Added code for parsing Unordered, UorE, UorG, UorGorE, UorL, UorLorE, NotEqual and Not tokens.
aziz
parents: 34
diff changeset
499 assert(0);
63
c29229fbf2f7 - Recognizing floats that start with a dot.
aziz
parents: 62
diff changeset
500 case '.': /* . .[0-9] .. ... */
22
b05fff8e2ce4 - Added code for parsing Dot, Slice and Ellipses tokens.
aziz
parents: 21
diff changeset
501 if (p[1] == '.')
b05fff8e2ce4 - Added code for parsing Dot, Slice and Ellipses tokens.
aziz
parents: 21
diff changeset
502 {
b05fff8e2ce4 - Added code for parsing Dot, Slice and Ellipses tokens.
aziz
parents: 21
diff changeset
503 ++p;
b05fff8e2ce4 - Added code for parsing Dot, Slice and Ellipses tokens.
aziz
parents: 21
diff changeset
504 if (p[1] == '.') {
b05fff8e2ce4 - Added code for parsing Dot, Slice and Ellipses tokens.
aziz
parents: 21
diff changeset
505 ++p;
b05fff8e2ce4 - Added code for parsing Dot, Slice and Ellipses tokens.
aziz
parents: 21
diff changeset
506 t.type = TOK.Ellipses;
b05fff8e2ce4 - Added code for parsing Dot, Slice and Ellipses tokens.
aziz
parents: 21
diff changeset
507 }
b05fff8e2ce4 - Added code for parsing Dot, Slice and Ellipses tokens.
aziz
parents: 21
diff changeset
508 else
b05fff8e2ce4 - Added code for parsing Dot, Slice and Ellipses tokens.
aziz
parents: 21
diff changeset
509 t.type = TOK.Slice;
b05fff8e2ce4 - Added code for parsing Dot, Slice and Ellipses tokens.
aziz
parents: 21
diff changeset
510 }
63
c29229fbf2f7 - Recognizing floats that start with a dot.
aziz
parents: 62
diff changeset
511 else if (isdigit(p[1]))
c29229fbf2f7 - Recognizing floats that start with a dot.
aziz
parents: 62
diff changeset
512 {
c29229fbf2f7 - Recognizing floats that start with a dot.
aziz
parents: 62
diff changeset
513 return scanReal(t);
c29229fbf2f7 - Recognizing floats that start with a dot.
aziz
parents: 62
diff changeset
514 }
22
b05fff8e2ce4 - Added code for parsing Dot, Slice and Ellipses tokens.
aziz
parents: 21
diff changeset
515 else
b05fff8e2ce4 - Added code for parsing Dot, Slice and Ellipses tokens.
aziz
parents: 21
diff changeset
516 t.type = TOK.Dot;
b05fff8e2ce4 - Added code for parsing Dot, Slice and Ellipses tokens.
aziz
parents: 21
diff changeset
517 goto Lcommon;
36
3c7210a722f7 - Added code for parsing LorEorG, LorG, LessEqual, LessThan, LShiftAssign and LShift tokens.
aziz
parents: 35
diff changeset
518 case '|': /* | || |= */
23
1a7903701a3d - Added code for parsing OrAssign, OrLogical and OrBinary tokens.
aziz
parents: 22
diff changeset
519 c = *++p;
1a7903701a3d - Added code for parsing OrAssign, OrLogical and OrBinary tokens.
aziz
parents: 22
diff changeset
520 if (c == '=')
1a7903701a3d - Added code for parsing OrAssign, OrLogical and OrBinary tokens.
aziz
parents: 22
diff changeset
521 t.type = TOK.OrAssign;
1a7903701a3d - Added code for parsing OrAssign, OrLogical and OrBinary tokens.
aziz
parents: 22
diff changeset
522 else if (c == '|')
1a7903701a3d - Added code for parsing OrAssign, OrLogical and OrBinary tokens.
aziz
parents: 22
diff changeset
523 t.type = TOK.OrLogical;
26
c3d7373db241 - Added code for parsing Assign and Equal tokens.
aziz
parents: 25
diff changeset
524 else {
23
1a7903701a3d - Added code for parsing OrAssign, OrLogical and OrBinary tokens.
aziz
parents: 22
diff changeset
525 t.type = TOK.OrBinary;
26
c3d7373db241 - Added code for parsing Assign and Equal tokens.
aziz
parents: 25
diff changeset
526 goto Lcommon2;
c3d7373db241 - Added code for parsing Assign and Equal tokens.
aziz
parents: 25
diff changeset
527 }
23
1a7903701a3d - Added code for parsing OrAssign, OrLogical and OrBinary tokens.
aziz
parents: 22
diff changeset
528 goto Lcommon;
36
3c7210a722f7 - Added code for parsing LorEorG, LorG, LessEqual, LessThan, LShiftAssign and LShift tokens.
aziz
parents: 35
diff changeset
529 case '&': /* & && &= */
24
903f91163f23 - Added code for parsing AndAssign, AndLogical and AndBinary tokens.
aziz
parents: 23
diff changeset
530 c = *++p;
903f91163f23 - Added code for parsing AndAssign, AndLogical and AndBinary tokens.
aziz
parents: 23
diff changeset
531 if (c == '=')
903f91163f23 - Added code for parsing AndAssign, AndLogical and AndBinary tokens.
aziz
parents: 23
diff changeset
532 t.type = TOK.AndAssign;
903f91163f23 - Added code for parsing AndAssign, AndLogical and AndBinary tokens.
aziz
parents: 23
diff changeset
533 else if (c == '&')
903f91163f23 - Added code for parsing AndAssign, AndLogical and AndBinary tokens.
aziz
parents: 23
diff changeset
534 t.type = TOK.AndLogical;
26
c3d7373db241 - Added code for parsing Assign and Equal tokens.
aziz
parents: 25
diff changeset
535 else {
24
903f91163f23 - Added code for parsing AndAssign, AndLogical and AndBinary tokens.
aziz
parents: 23
diff changeset
536 t.type = TOK.AndBinary;
26
c3d7373db241 - Added code for parsing Assign and Equal tokens.
aziz
parents: 25
diff changeset
537 goto Lcommon2;
c3d7373db241 - Added code for parsing Assign and Equal tokens.
aziz
parents: 25
diff changeset
538 }
24
903f91163f23 - Added code for parsing AndAssign, AndLogical and AndBinary tokens.
aziz
parents: 23
diff changeset
539 goto Lcommon;
36
3c7210a722f7 - Added code for parsing LorEorG, LorG, LessEqual, LessThan, LShiftAssign and LShift tokens.
aziz
parents: 35
diff changeset
540 case '+': /* + ++ += */
25
9c866208b3f6 - Added code for parsing PlusAssign, PlusPlus, Plus, MinusAssign, MinusMinus, Minus tokens.
aziz
parents: 24
diff changeset
541 c = *++p;
9c866208b3f6 - Added code for parsing PlusAssign, PlusPlus, Plus, MinusAssign, MinusMinus, Minus tokens.
aziz
parents: 24
diff changeset
542 if (c == '=')
9c866208b3f6 - Added code for parsing PlusAssign, PlusPlus, Plus, MinusAssign, MinusMinus, Minus tokens.
aziz
parents: 24
diff changeset
543 t.type = TOK.PlusAssign;
9c866208b3f6 - Added code for parsing PlusAssign, PlusPlus, Plus, MinusAssign, MinusMinus, Minus tokens.
aziz
parents: 24
diff changeset
544 else if (c == '+')
9c866208b3f6 - Added code for parsing PlusAssign, PlusPlus, Plus, MinusAssign, MinusMinus, Minus tokens.
aziz
parents: 24
diff changeset
545 t.type = TOK.PlusPlus;
26
c3d7373db241 - Added code for parsing Assign and Equal tokens.
aziz
parents: 25
diff changeset
546 else {
25
9c866208b3f6 - Added code for parsing PlusAssign, PlusPlus, Plus, MinusAssign, MinusMinus, Minus tokens.
aziz
parents: 24
diff changeset
547 t.type = TOK.Plus;
26
c3d7373db241 - Added code for parsing Assign and Equal tokens.
aziz
parents: 25
diff changeset
548 goto Lcommon2;
c3d7373db241 - Added code for parsing Assign and Equal tokens.
aziz
parents: 25
diff changeset
549 }
25
9c866208b3f6 - Added code for parsing PlusAssign, PlusPlus, Plus, MinusAssign, MinusMinus, Minus tokens.
aziz
parents: 24
diff changeset
550 goto Lcommon;
36
3c7210a722f7 - Added code for parsing LorEorG, LorG, LessEqual, LessThan, LShiftAssign and LShift tokens.
aziz
parents: 35
diff changeset
551 case '-': /* - -- -= */
25
9c866208b3f6 - Added code for parsing PlusAssign, PlusPlus, Plus, MinusAssign, MinusMinus, Minus tokens.
aziz
parents: 24
diff changeset
552 c = *++p;
9c866208b3f6 - Added code for parsing PlusAssign, PlusPlus, Plus, MinusAssign, MinusMinus, Minus tokens.
aziz
parents: 24
diff changeset
553 if (c == '=')
9c866208b3f6 - Added code for parsing PlusAssign, PlusPlus, Plus, MinusAssign, MinusMinus, Minus tokens.
aziz
parents: 24
diff changeset
554 t.type = TOK.MinusAssign;
9c866208b3f6 - Added code for parsing PlusAssign, PlusPlus, Plus, MinusAssign, MinusMinus, Minus tokens.
aziz
parents: 24
diff changeset
555 else if (c == '-')
9c866208b3f6 - Added code for parsing PlusAssign, PlusPlus, Plus, MinusAssign, MinusMinus, Minus tokens.
aziz
parents: 24
diff changeset
556 t.type = TOK.MinusMinus;
26
c3d7373db241 - Added code for parsing Assign and Equal tokens.
aziz
parents: 25
diff changeset
557 else {
c3d7373db241 - Added code for parsing Assign and Equal tokens.
aziz
parents: 25
diff changeset
558 t.type = TOK.Minus;
c3d7373db241 - Added code for parsing Assign and Equal tokens.
aziz
parents: 25
diff changeset
559 goto Lcommon2;
c3d7373db241 - Added code for parsing Assign and Equal tokens.
aziz
parents: 25
diff changeset
560 }
c3d7373db241 - Added code for parsing Assign and Equal tokens.
aziz
parents: 25
diff changeset
561 goto Lcommon;
36
3c7210a722f7 - Added code for parsing LorEorG, LorG, LessEqual, LessThan, LShiftAssign and LShift tokens.
aziz
parents: 35
diff changeset
562 case '=': /* = == */
26
c3d7373db241 - Added code for parsing Assign and Equal tokens.
aziz
parents: 25
diff changeset
563 if (p[1] == '=') {
c3d7373db241 - Added code for parsing Assign and Equal tokens.
aziz
parents: 25
diff changeset
564 ++p;
c3d7373db241 - Added code for parsing Assign and Equal tokens.
aziz
parents: 25
diff changeset
565 t.type = TOK.Equal;
c3d7373db241 - Added code for parsing Assign and Equal tokens.
aziz
parents: 25
diff changeset
566 }
25
9c866208b3f6 - Added code for parsing PlusAssign, PlusPlus, Plus, MinusAssign, MinusMinus, Minus tokens.
aziz
parents: 24
diff changeset
567 else
26
c3d7373db241 - Added code for parsing Assign and Equal tokens.
aziz
parents: 25
diff changeset
568 t.type = TOK.Assign;
25
9c866208b3f6 - Added code for parsing PlusAssign, PlusPlus, Plus, MinusAssign, MinusMinus, Minus tokens.
aziz
parents: 24
diff changeset
569 goto Lcommon;
36
3c7210a722f7 - Added code for parsing LorEorG, LorG, LessEqual, LessThan, LShiftAssign and LShift tokens.
aziz
parents: 35
diff changeset
570 case '~': /* ~ ~= */
27
43b6bf56f0e9 - Added code for parsing CatAssign and Tilde tokens.
aziz
parents: 26
diff changeset
571 if (p[1] == '=') {
43b6bf56f0e9 - Added code for parsing CatAssign and Tilde tokens.
aziz
parents: 26
diff changeset
572 ++p;
43b6bf56f0e9 - Added code for parsing CatAssign and Tilde tokens.
aziz
parents: 26
diff changeset
573 t.type = TOK.CatAssign;
43b6bf56f0e9 - Added code for parsing CatAssign and Tilde tokens.
aziz
parents: 26
diff changeset
574 }
43b6bf56f0e9 - Added code for parsing CatAssign and Tilde tokens.
aziz
parents: 26
diff changeset
575 else
43b6bf56f0e9 - Added code for parsing CatAssign and Tilde tokens.
aziz
parents: 26
diff changeset
576 t.type = TOK.Tilde;
43b6bf56f0e9 - Added code for parsing CatAssign and Tilde tokens.
aziz
parents: 26
diff changeset
577 goto Lcommon;
36
3c7210a722f7 - Added code for parsing LorEorG, LorG, LessEqual, LessThan, LShiftAssign and LShift tokens.
aziz
parents: 35
diff changeset
578 case '*': /* * *= */
29
ef83eea26bbd - Added code for parsing MulAssign, Mul, ModAssign, Mod, XorAssign and Xor tokens.
aziz
parents: 28
diff changeset
579 if (p[1] == '=') {
ef83eea26bbd - Added code for parsing MulAssign, Mul, ModAssign, Mod, XorAssign and Xor tokens.
aziz
parents: 28
diff changeset
580 ++p;
ef83eea26bbd - Added code for parsing MulAssign, Mul, ModAssign, Mod, XorAssign and Xor tokens.
aziz
parents: 28
diff changeset
581 t.type = TOK.MulAssign;
ef83eea26bbd - Added code for parsing MulAssign, Mul, ModAssign, Mod, XorAssign and Xor tokens.
aziz
parents: 28
diff changeset
582 }
ef83eea26bbd - Added code for parsing MulAssign, Mul, ModAssign, Mod, XorAssign and Xor tokens.
aziz
parents: 28
diff changeset
583 else
ef83eea26bbd - Added code for parsing MulAssign, Mul, ModAssign, Mod, XorAssign and Xor tokens.
aziz
parents: 28
diff changeset
584 t.type = TOK.Mul;
ef83eea26bbd - Added code for parsing MulAssign, Mul, ModAssign, Mod, XorAssign and Xor tokens.
aziz
parents: 28
diff changeset
585 goto Lcommon;
36
3c7210a722f7 - Added code for parsing LorEorG, LorG, LessEqual, LessThan, LShiftAssign and LShift tokens.
aziz
parents: 35
diff changeset
586 case '^': /* ^ ^= */
29
ef83eea26bbd - Added code for parsing MulAssign, Mul, ModAssign, Mod, XorAssign and Xor tokens.
aziz
parents: 28
diff changeset
587 if (p[1] == '=') {
ef83eea26bbd - Added code for parsing MulAssign, Mul, ModAssign, Mod, XorAssign and Xor tokens.
aziz
parents: 28
diff changeset
588 ++p;
ef83eea26bbd - Added code for parsing MulAssign, Mul, ModAssign, Mod, XorAssign and Xor tokens.
aziz
parents: 28
diff changeset
589 t.type = TOK.XorAssign;
ef83eea26bbd - Added code for parsing MulAssign, Mul, ModAssign, Mod, XorAssign and Xor tokens.
aziz
parents: 28
diff changeset
590 }
ef83eea26bbd - Added code for parsing MulAssign, Mul, ModAssign, Mod, XorAssign and Xor tokens.
aziz
parents: 28
diff changeset
591 else
ef83eea26bbd - Added code for parsing MulAssign, Mul, ModAssign, Mod, XorAssign and Xor tokens.
aziz
parents: 28
diff changeset
592 t.type = TOK.Xor;
ef83eea26bbd - Added code for parsing MulAssign, Mul, ModAssign, Mod, XorAssign and Xor tokens.
aziz
parents: 28
diff changeset
593 goto Lcommon;
36
3c7210a722f7 - Added code for parsing LorEorG, LorG, LessEqual, LessThan, LShiftAssign and LShift tokens.
aziz
parents: 35
diff changeset
594 case '%': /* % %= */
29
ef83eea26bbd - Added code for parsing MulAssign, Mul, ModAssign, Mod, XorAssign and Xor tokens.
aziz
parents: 28
diff changeset
595 if (p[1] == '=') {
ef83eea26bbd - Added code for parsing MulAssign, Mul, ModAssign, Mod, XorAssign and Xor tokens.
aziz
parents: 28
diff changeset
596 ++p;
ef83eea26bbd - Added code for parsing MulAssign, Mul, ModAssign, Mod, XorAssign and Xor tokens.
aziz
parents: 28
diff changeset
597 t.type = TOK.ModAssign;
ef83eea26bbd - Added code for parsing MulAssign, Mul, ModAssign, Mod, XorAssign and Xor tokens.
aziz
parents: 28
diff changeset
598 }
ef83eea26bbd - Added code for parsing MulAssign, Mul, ModAssign, Mod, XorAssign and Xor tokens.
aziz
parents: 28
diff changeset
599 else
ef83eea26bbd - Added code for parsing MulAssign, Mul, ModAssign, Mod, XorAssign and Xor tokens.
aziz
parents: 28
diff changeset
600 t.type = TOK.Mod;
ef83eea26bbd - Added code for parsing MulAssign, Mul, ModAssign, Mod, XorAssign and Xor tokens.
aziz
parents: 28
diff changeset
601 goto Lcommon;
ef83eea26bbd - Added code for parsing MulAssign, Mul, ModAssign, Mod, XorAssign and Xor tokens.
aziz
parents: 28
diff changeset
602 // Single character tokens:
20
d6adfbd7c513 - Added code for parsing braces.
aziz
parents: 19
diff changeset
603 case '(':
d6adfbd7c513 - Added code for parsing braces.
aziz
parents: 19
diff changeset
604 t.type = TOK.LParen;
d6adfbd7c513 - Added code for parsing braces.
aziz
parents: 19
diff changeset
605 goto Lcommon;
d6adfbd7c513 - Added code for parsing braces.
aziz
parents: 19
diff changeset
606 case ')':
d6adfbd7c513 - Added code for parsing braces.
aziz
parents: 19
diff changeset
607 t.type = TOK.RParen;
d6adfbd7c513 - Added code for parsing braces.
aziz
parents: 19
diff changeset
608 goto Lcommon;
d6adfbd7c513 - Added code for parsing braces.
aziz
parents: 19
diff changeset
609 case '[':
d6adfbd7c513 - Added code for parsing braces.
aziz
parents: 19
diff changeset
610 t.type = TOK.LBracket;
d6adfbd7c513 - Added code for parsing braces.
aziz
parents: 19
diff changeset
611 goto Lcommon;
d6adfbd7c513 - Added code for parsing braces.
aziz
parents: 19
diff changeset
612 case ']':
d6adfbd7c513 - Added code for parsing braces.
aziz
parents: 19
diff changeset
613 t.type = TOK.RBracket;
d6adfbd7c513 - Added code for parsing braces.
aziz
parents: 19
diff changeset
614 goto Lcommon;
d6adfbd7c513 - Added code for parsing braces.
aziz
parents: 19
diff changeset
615 case '{':
d6adfbd7c513 - Added code for parsing braces.
aziz
parents: 19
diff changeset
616 t.type = TOK.LBrace;
d6adfbd7c513 - Added code for parsing braces.
aziz
parents: 19
diff changeset
617 goto Lcommon;
d6adfbd7c513 - Added code for parsing braces.
aziz
parents: 19
diff changeset
618 case '}':
d6adfbd7c513 - Added code for parsing braces.
aziz
parents: 19
diff changeset
619 t.type = TOK.RBrace;
21
c785c122e4e6 - Added code for parsing Colon, Semicolon, Question, Comma and Dollar.
aziz
parents: 20
diff changeset
620 goto Lcommon;
c785c122e4e6 - Added code for parsing Colon, Semicolon, Question, Comma and Dollar.
aziz
parents: 20
diff changeset
621 case ':':
c785c122e4e6 - Added code for parsing Colon, Semicolon, Question, Comma and Dollar.
aziz
parents: 20
diff changeset
622 t.type = TOK.Colon;
c785c122e4e6 - Added code for parsing Colon, Semicolon, Question, Comma and Dollar.
aziz
parents: 20
diff changeset
623 goto Lcommon;
c785c122e4e6 - Added code for parsing Colon, Semicolon, Question, Comma and Dollar.
aziz
parents: 20
diff changeset
624 case ';':
c785c122e4e6 - Added code for parsing Colon, Semicolon, Question, Comma and Dollar.
aziz
parents: 20
diff changeset
625 t.type = TOK.Semicolon;
c785c122e4e6 - Added code for parsing Colon, Semicolon, Question, Comma and Dollar.
aziz
parents: 20
diff changeset
626 goto Lcommon;
c785c122e4e6 - Added code for parsing Colon, Semicolon, Question, Comma and Dollar.
aziz
parents: 20
diff changeset
627 case '?':
c785c122e4e6 - Added code for parsing Colon, Semicolon, Question, Comma and Dollar.
aziz
parents: 20
diff changeset
628 t.type = TOK.Question;
c785c122e4e6 - Added code for parsing Colon, Semicolon, Question, Comma and Dollar.
aziz
parents: 20
diff changeset
629 goto Lcommon;
c785c122e4e6 - Added code for parsing Colon, Semicolon, Question, Comma and Dollar.
aziz
parents: 20
diff changeset
630 case ',':
c785c122e4e6 - Added code for parsing Colon, Semicolon, Question, Comma and Dollar.
aziz
parents: 20
diff changeset
631 t.type = TOK.Comma;
c785c122e4e6 - Added code for parsing Colon, Semicolon, Question, Comma and Dollar.
aziz
parents: 20
diff changeset
632 goto Lcommon;
c785c122e4e6 - Added code for parsing Colon, Semicolon, Question, Comma and Dollar.
aziz
parents: 20
diff changeset
633 case '$':
c785c122e4e6 - Added code for parsing Colon, Semicolon, Question, Comma and Dollar.
aziz
parents: 20
diff changeset
634 t.type = TOK.Dollar;
20
d6adfbd7c513 - Added code for parsing braces.
aziz
parents: 19
diff changeset
635 Lcommon:
d6adfbd7c513 - Added code for parsing braces.
aziz
parents: 19
diff changeset
636 ++p;
26
c3d7373db241 - Added code for parsing Assign and Equal tokens.
aziz
parents: 25
diff changeset
637 Lcommon2:
20
d6adfbd7c513 - Added code for parsing braces.
aziz
parents: 19
diff changeset
638 t.end = p;
d6adfbd7c513 - Added code for parsing braces.
aziz
parents: 19
diff changeset
639 return;
30
426767b94635 - Added code for parsing the '#line' special token.
aziz
parents: 29
diff changeset
640 case '#':
323
6259fb93e3dd - Rewrote scanSpecialToken().
aziz
parents: 315
diff changeset
641 return scanSpecialToken(t);
20
d6adfbd7c513 - Added code for parsing braces.
aziz
parents: 19
diff changeset
642 default:
d6adfbd7c513 - Added code for parsing braces.
aziz
parents: 19
diff changeset
643 }
d6adfbd7c513 - Added code for parsing braces.
aziz
parents: 19
diff changeset
644
49
7f0fa15dcffc - Renamed function.
aziz
parents: 48
diff changeset
645 if (c & 128 && isUniAlpha(decodeUTF8()))
12
0989206cf73c - Added code to decode Unicode characters in identifiers.
aziz
parents: 11
diff changeset
646 goto Lidentifier;
5
79b4e8848794 - Started writing XML generator.
aziz
parents: 4
diff changeset
647 c = *++p;
4
92df59b1ec4a - Started implementation of scan().
aziz
parents: 3
diff changeset
648 }
3
4bbce78bfb1e - Added TOK enum.
aziz
parents: 2
diff changeset
649 }
4
92df59b1ec4a - Started implementation of scan().
aziz
parents: 3
diff changeset
650
47
8aa37a78937b - Properly implemented scanner for normal string literals.
aziz
parents: 46
diff changeset
651 void scanNormalStringLiteral(ref Token t)
8aa37a78937b - Properly implemented scanner for normal string literals.
aziz
parents: 46
diff changeset
652 {
8aa37a78937b - Properly implemented scanner for normal string literals.
aziz
parents: 46
diff changeset
653 assert(*p == '"');
8aa37a78937b - Properly implemented scanner for normal string literals.
aziz
parents: 46
diff changeset
654 ++p;
8aa37a78937b - Properly implemented scanner for normal string literals.
aziz
parents: 46
diff changeset
655 char[] buffer;
8aa37a78937b - Properly implemented scanner for normal string literals.
aziz
parents: 46
diff changeset
656 t.type = TOK.String;
8aa37a78937b - Properly implemented scanner for normal string literals.
aziz
parents: 46
diff changeset
657 while (1)
8aa37a78937b - Properly implemented scanner for normal string literals.
aziz
parents: 46
diff changeset
658 {
8aa37a78937b - Properly implemented scanner for normal string literals.
aziz
parents: 46
diff changeset
659 switch (*p)
8aa37a78937b - Properly implemented scanner for normal string literals.
aziz
parents: 46
diff changeset
660 {
8aa37a78937b - Properly implemented scanner for normal string literals.
aziz
parents: 46
diff changeset
661 case '"':
8aa37a78937b - Properly implemented scanner for normal string literals.
aziz
parents: 46
diff changeset
662 ++p;
8aa37a78937b - Properly implemented scanner for normal string literals.
aziz
parents: 46
diff changeset
663 Lreturn:
8aa37a78937b - Properly implemented scanner for normal string literals.
aziz
parents: 46
diff changeset
664 buffer ~= 0;
49
7f0fa15dcffc - Renamed function.
aziz
parents: 48
diff changeset
665 t.str = buffer;
47
8aa37a78937b - Properly implemented scanner for normal string literals.
aziz
parents: 46
diff changeset
666 t.pf = scanPostfix();
8aa37a78937b - Properly implemented scanner for normal string literals.
aziz
parents: 46
diff changeset
667 t.end = p;
8aa37a78937b - Properly implemented scanner for normal string literals.
aziz
parents: 46
diff changeset
668 return;
8aa37a78937b - Properly implemented scanner for normal string literals.
aziz
parents: 46
diff changeset
669 case '\\':
8aa37a78937b - Properly implemented scanner for normal string literals.
aziz
parents: 46
diff changeset
670 ++p;
49
7f0fa15dcffc - Renamed function.
aziz
parents: 48
diff changeset
671 dchar d = scanEscapeSequence();
7f0fa15dcffc - Renamed function.
aziz
parents: 48
diff changeset
672 if (d < 128)
7f0fa15dcffc - Renamed function.
aziz
parents: 48
diff changeset
673 buffer ~= d;
47
8aa37a78937b - Properly implemented scanner for normal string literals.
aziz
parents: 46
diff changeset
674 else
49
7f0fa15dcffc - Renamed function.
aziz
parents: 48
diff changeset
675 encodeUTF8(buffer, d);
47
8aa37a78937b - Properly implemented scanner for normal string literals.
aziz
parents: 46
diff changeset
676 continue;
8aa37a78937b - Properly implemented scanner for normal string literals.
aziz
parents: 46
diff changeset
677 case '\r':
8aa37a78937b - Properly implemented scanner for normal string literals.
aziz
parents: 46
diff changeset
678 if (p[1] == '\n')
8aa37a78937b - Properly implemented scanner for normal string literals.
aziz
parents: 46
diff changeset
679 ++p;
8aa37a78937b - Properly implemented scanner for normal string literals.
aziz
parents: 46
diff changeset
680 case '\n':
8aa37a78937b - Properly implemented scanner for normal string literals.
aziz
parents: 46
diff changeset
681 ++p;
8aa37a78937b - Properly implemented scanner for normal string literals.
aziz
parents: 46
diff changeset
682 ++loc;
221
f26a2beb745e - Moved ++p below if-statement.
aziz
parents: 215
diff changeset
683 buffer ~= '\n'; // Convert EndOfLine to \n.
47
8aa37a78937b - Properly implemented scanner for normal string literals.
aziz
parents: 46
diff changeset
684 continue;
8aa37a78937b - Properly implemented scanner for normal string literals.
aziz
parents: 46
diff changeset
685 case 0, _Z_:
8aa37a78937b - Properly implemented scanner for normal string literals.
aziz
parents: 46
diff changeset
686 error(MID.UnterminatedString);
8aa37a78937b - Properly implemented scanner for normal string literals.
aziz
parents: 46
diff changeset
687 goto Lreturn;
8aa37a78937b - Properly implemented scanner for normal string literals.
aziz
parents: 46
diff changeset
688 default:
8aa37a78937b - Properly implemented scanner for normal string literals.
aziz
parents: 46
diff changeset
689 if (*p & 128)
8aa37a78937b - Properly implemented scanner for normal string literals.
aziz
parents: 46
diff changeset
690 {
82
fc645fb2fe72 - scanEscapeSequences() doesn't return 0xFFFF as an error value anymore, because it is a valid codepoint usable by the user.
aziz
parents: 71
diff changeset
691 // char* begin = p;
49
7f0fa15dcffc - Renamed function.
aziz
parents: 48
diff changeset
692 dchar d = decodeUTF8();
7f0fa15dcffc - Renamed function.
aziz
parents: 48
diff changeset
693 if (d == LSd || d == PSd)
47
8aa37a78937b - Properly implemented scanner for normal string literals.
aziz
parents: 46
diff changeset
694 goto case '\n';
49
7f0fa15dcffc - Renamed function.
aziz
parents: 48
diff changeset
695
82
fc645fb2fe72 - scanEscapeSequences() doesn't return 0xFFFF as an error value anymore, because it is a valid codepoint usable by the user.
aziz
parents: 71
diff changeset
696 // We don't copy per pointer because we might include
fc645fb2fe72 - scanEscapeSequences() doesn't return 0xFFFF as an error value anymore, because it is a valid codepoint usable by the user.
aziz
parents: 71
diff changeset
697 // invalid, skipped utf-8 sequences. See decodeUTF8().
fc645fb2fe72 - scanEscapeSequences() doesn't return 0xFFFF as an error value anymore, because it is a valid codepoint usable by the user.
aziz
parents: 71
diff changeset
698 // ++p;
fc645fb2fe72 - scanEscapeSequences() doesn't return 0xFFFF as an error value anymore, because it is a valid codepoint usable by the user.
aziz
parents: 71
diff changeset
699 // buffer ~= begin[0 .. p - begin];
221
f26a2beb745e - Moved ++p below if-statement.
aziz
parents: 215
diff changeset
700 ++p;
82
fc645fb2fe72 - scanEscapeSequences() doesn't return 0xFFFF as an error value anymore, because it is a valid codepoint usable by the user.
aziz
parents: 71
diff changeset
701 encodeUTF8(buffer, d);
47
8aa37a78937b - Properly implemented scanner for normal string literals.
aziz
parents: 46
diff changeset
702 continue;
8aa37a78937b - Properly implemented scanner for normal string literals.
aziz
parents: 46
diff changeset
703 }
223
043722eed46e - Fix: if-statements should be while-statements.
aziz
parents: 221
diff changeset
704 // Copy ASCII character.
47
8aa37a78937b - Properly implemented scanner for normal string literals.
aziz
parents: 46
diff changeset
705 buffer ~= *p++;
8aa37a78937b - Properly implemented scanner for normal string literals.
aziz
parents: 46
diff changeset
706 }
8aa37a78937b - Properly implemented scanner for normal string literals.
aziz
parents: 46
diff changeset
707 }
67
996065105910 - Fix: variadic arguments are local to the variadic function. Parameters are converted to an array of strings first and then passed to the constructor of class Problem.
aziz
parents: 66
diff changeset
708 assert(0);
47
8aa37a78937b - Properly implemented scanner for normal string literals.
aziz
parents: 46
diff changeset
709 }
8aa37a78937b - Properly implemented scanner for normal string literals.
aziz
parents: 46
diff changeset
710
18
c48d2125f1e2 - Moved code for scanning character literals to separate function.
aziz
parents: 17
diff changeset
711 void scanCharacterLiteral(ref Token t)
c48d2125f1e2 - Moved code for scanning character literals to separate function.
aziz
parents: 17
diff changeset
712 {
c48d2125f1e2 - Moved code for scanning character literals to separate function.
aziz
parents: 17
diff changeset
713 assert(*p == '\'');
c48d2125f1e2 - Moved code for scanning character literals to separate function.
aziz
parents: 17
diff changeset
714 MID id = MID.UnterminatedCharacterLiteral;
46
e0dbd4722f74 - Scanning character literals correctly now.
aziz
parents: 45
diff changeset
715 ++p;
82
fc645fb2fe72 - scanEscapeSequences() doesn't return 0xFFFF as an error value anymore, because it is a valid codepoint usable by the user.
aziz
parents: 71
diff changeset
716 TOK type = TOK.CharLiteral;
46
e0dbd4722f74 - Scanning character literals correctly now.
aziz
parents: 45
diff changeset
717 switch (*p)
18
c48d2125f1e2 - Moved code for scanning character literals to separate function.
aziz
parents: 17
diff changeset
718 {
c48d2125f1e2 - Moved code for scanning character literals to separate function.
aziz
parents: 17
diff changeset
719 case '\\':
c48d2125f1e2 - Moved code for scanning character literals to separate function.
aziz
parents: 17
diff changeset
720 ++p;
82
fc645fb2fe72 - scanEscapeSequences() doesn't return 0xFFFF as an error value anymore, because it is a valid codepoint usable by the user.
aziz
parents: 71
diff changeset
721 switch (*p)
fc645fb2fe72 - scanEscapeSequences() doesn't return 0xFFFF as an error value anymore, because it is a valid codepoint usable by the user.
aziz
parents: 71
diff changeset
722 {
fc645fb2fe72 - scanEscapeSequences() doesn't return 0xFFFF as an error value anymore, because it is a valid codepoint usable by the user.
aziz
parents: 71
diff changeset
723 case 'u':
fc645fb2fe72 - scanEscapeSequences() doesn't return 0xFFFF as an error value anymore, because it is a valid codepoint usable by the user.
aziz
parents: 71
diff changeset
724 type = TOK.WCharLiteral; break;
fc645fb2fe72 - scanEscapeSequences() doesn't return 0xFFFF as an error value anymore, because it is a valid codepoint usable by the user.
aziz
parents: 71
diff changeset
725 case 'U':
fc645fb2fe72 - scanEscapeSequences() doesn't return 0xFFFF as an error value anymore, because it is a valid codepoint usable by the user.
aziz
parents: 71
diff changeset
726 type = TOK.DCharLiteral; break;
fc645fb2fe72 - scanEscapeSequences() doesn't return 0xFFFF as an error value anymore, because it is a valid codepoint usable by the user.
aziz
parents: 71
diff changeset
727 default:
fc645fb2fe72 - scanEscapeSequences() doesn't return 0xFFFF as an error value anymore, because it is a valid codepoint usable by the user.
aziz
parents: 71
diff changeset
728 }
46
e0dbd4722f74 - Scanning character literals correctly now.
aziz
parents: 45
diff changeset
729 t.dchar_ = scanEscapeSequence();
18
c48d2125f1e2 - Moved code for scanning character literals to separate function.
aziz
parents: 17
diff changeset
730 break;
c48d2125f1e2 - Moved code for scanning character literals to separate function.
aziz
parents: 17
diff changeset
731 case '\'':
46
e0dbd4722f74 - Scanning character literals correctly now.
aziz
parents: 45
diff changeset
732 ++p;
18
c48d2125f1e2 - Moved code for scanning character literals to separate function.
aziz
parents: 17
diff changeset
733 id = MID.EmptyCharacterLiteral;
46
e0dbd4722f74 - Scanning character literals correctly now.
aziz
parents: 45
diff changeset
734 case '\n', '\r', 0, _Z_:
18
c48d2125f1e2 - Moved code for scanning character literals to separate function.
aziz
parents: 17
diff changeset
735 goto Lerr;
c48d2125f1e2 - Moved code for scanning character literals to separate function.
aziz
parents: 17
diff changeset
736 default:
46
e0dbd4722f74 - Scanning character literals correctly now.
aziz
parents: 45
diff changeset
737 uint c = *p;
18
c48d2125f1e2 - Moved code for scanning character literals to separate function.
aziz
parents: 17
diff changeset
738 if (c & 128)
c48d2125f1e2 - Moved code for scanning character literals to separate function.
aziz
parents: 17
diff changeset
739 {
49
7f0fa15dcffc - Renamed function.
aziz
parents: 48
diff changeset
740 c = decodeUTF8();
18
c48d2125f1e2 - Moved code for scanning character literals to separate function.
aziz
parents: 17
diff changeset
741 if (c == LSd || c == PSd)
c48d2125f1e2 - Moved code for scanning character literals to separate function.
aziz
parents: 17
diff changeset
742 goto Lerr;
82
fc645fb2fe72 - scanEscapeSequences() doesn't return 0xFFFF as an error value anymore, because it is a valid codepoint usable by the user.
aziz
parents: 71
diff changeset
743 if (c <= 0xFFFF)
fc645fb2fe72 - scanEscapeSequences() doesn't return 0xFFFF as an error value anymore, because it is a valid codepoint usable by the user.
aziz
parents: 71
diff changeset
744 type = TOK.WCharLiteral;
fc645fb2fe72 - scanEscapeSequences() doesn't return 0xFFFF as an error value anymore, because it is a valid codepoint usable by the user.
aziz
parents: 71
diff changeset
745 else
fc645fb2fe72 - scanEscapeSequences() doesn't return 0xFFFF as an error value anymore, because it is a valid codepoint usable by the user.
aziz
parents: 71
diff changeset
746 type = TOK.DCharLiteral;
18
c48d2125f1e2 - Moved code for scanning character literals to separate function.
aziz
parents: 17
diff changeset
747 }
46
e0dbd4722f74 - Scanning character literals correctly now.
aziz
parents: 45
diff changeset
748 t.dchar_ = c;
e0dbd4722f74 - Scanning character literals correctly now.
aziz
parents: 45
diff changeset
749 ++p;
18
c48d2125f1e2 - Moved code for scanning character literals to separate function.
aziz
parents: 17
diff changeset
750 }
c48d2125f1e2 - Moved code for scanning character literals to separate function.
aziz
parents: 17
diff changeset
751
46
e0dbd4722f74 - Scanning character literals correctly now.
aziz
parents: 45
diff changeset
752 if (*p == '\'')
e0dbd4722f74 - Scanning character literals correctly now.
aziz
parents: 45
diff changeset
753 ++p;
e0dbd4722f74 - Scanning character literals correctly now.
aziz
parents: 45
diff changeset
754 else
82
fc645fb2fe72 - scanEscapeSequences() doesn't return 0xFFFF as an error value anymore, because it is a valid codepoint usable by the user.
aziz
parents: 71
diff changeset
755 Lerr:
18
c48d2125f1e2 - Moved code for scanning character literals to separate function.
aziz
parents: 17
diff changeset
756 error(id);
82
fc645fb2fe72 - scanEscapeSequences() doesn't return 0xFFFF as an error value anymore, because it is a valid codepoint usable by the user.
aziz
parents: 71
diff changeset
757 t.type = type;
18
c48d2125f1e2 - Moved code for scanning character literals to separate function.
aziz
parents: 17
diff changeset
758 t.end = p;
c48d2125f1e2 - Moved code for scanning character literals to separate function.
aziz
parents: 17
diff changeset
759 }
c48d2125f1e2 - Moved code for scanning character literals to separate function.
aziz
parents: 17
diff changeset
760
33
cf3047cf3cd2 - Added code for parsing back quote and raw strings.
aziz
parents: 32
diff changeset
761 char scanPostfix()
31
94f09f4e988e - Added struct for strings to Token with 'pf' = postfix.
aziz
parents: 30
diff changeset
762 {
94f09f4e988e - Added struct for strings to Token with 'pf' = postfix.
aziz
parents: 30
diff changeset
763 switch (*p)
94f09f4e988e - Added struct for strings to Token with 'pf' = postfix.
aziz
parents: 30
diff changeset
764 {
94f09f4e988e - Added struct for strings to Token with 'pf' = postfix.
aziz
parents: 30
diff changeset
765 case 'c':
94f09f4e988e - Added struct for strings to Token with 'pf' = postfix.
aziz
parents: 30
diff changeset
766 case 'w':
94f09f4e988e - Added struct for strings to Token with 'pf' = postfix.
aziz
parents: 30
diff changeset
767 case 'd':
94f09f4e988e - Added struct for strings to Token with 'pf' = postfix.
aziz
parents: 30
diff changeset
768 return *p++;
94f09f4e988e - Added struct for strings to Token with 'pf' = postfix.
aziz
parents: 30
diff changeset
769 default:
94f09f4e988e - Added struct for strings to Token with 'pf' = postfix.
aziz
parents: 30
diff changeset
770 return 0;
94f09f4e988e - Added struct for strings to Token with 'pf' = postfix.
aziz
parents: 30
diff changeset
771 }
112
004d98df65af - Implemented parseInterfaceDeclaration().
aziz
parents: 105
diff changeset
772 assert(0);
31
94f09f4e988e - Added struct for strings to Token with 'pf' = postfix.
aziz
parents: 30
diff changeset
773 }
94f09f4e988e - Added struct for strings to Token with 'pf' = postfix.
aziz
parents: 30
diff changeset
774
94f09f4e988e - Added struct for strings to Token with 'pf' = postfix.
aziz
parents: 30
diff changeset
775 void scanRawStringLiteral(ref Token t)
94f09f4e988e - Added struct for strings to Token with 'pf' = postfix.
aziz
parents: 30
diff changeset
776 {
33
cf3047cf3cd2 - Added code for parsing back quote and raw strings.
aziz
parents: 32
diff changeset
777 uint delim = *p;
cf3047cf3cd2 - Added code for parsing back quote and raw strings.
aziz
parents: 32
diff changeset
778 assert(delim == '`' || delim == '"' && p[-1] == 'r');
cf3047cf3cd2 - Added code for parsing back quote and raw strings.
aziz
parents: 32
diff changeset
779 t.type = TOK.String;
cf3047cf3cd2 - Added code for parsing back quote and raw strings.
aziz
parents: 32
diff changeset
780 char[] buffer;
cf3047cf3cd2 - Added code for parsing back quote and raw strings.
aziz
parents: 32
diff changeset
781 uint c;
cf3047cf3cd2 - Added code for parsing back quote and raw strings.
aziz
parents: 32
diff changeset
782 while (1)
cf3047cf3cd2 - Added code for parsing back quote and raw strings.
aziz
parents: 32
diff changeset
783 {
cf3047cf3cd2 - Added code for parsing back quote and raw strings.
aziz
parents: 32
diff changeset
784 c = *++p;
cf3047cf3cd2 - Added code for parsing back quote and raw strings.
aziz
parents: 32
diff changeset
785 switch (c)
cf3047cf3cd2 - Added code for parsing back quote and raw strings.
aziz
parents: 32
diff changeset
786 {
cf3047cf3cd2 - Added code for parsing back quote and raw strings.
aziz
parents: 32
diff changeset
787 case '\r':
cf3047cf3cd2 - Added code for parsing back quote and raw strings.
aziz
parents: 32
diff changeset
788 if (p[1] == '\n')
cf3047cf3cd2 - Added code for parsing back quote and raw strings.
aziz
parents: 32
diff changeset
789 ++p;
cf3047cf3cd2 - Added code for parsing back quote and raw strings.
aziz
parents: 32
diff changeset
790 c = '\n'; // Convert '\r' and '\r\n' to '\n'
cf3047cf3cd2 - Added code for parsing back quote and raw strings.
aziz
parents: 32
diff changeset
791 case '\n':
cf3047cf3cd2 - Added code for parsing back quote and raw strings.
aziz
parents: 32
diff changeset
792 ++loc;
52
f65a83c27638 - Fixed the raw string literal scanner. Newlines weren't copied to the buffer. Converting LS and PS to '\n' as well.
aziz
parents: 51
diff changeset
793 break;
33
cf3047cf3cd2 - Added code for parsing back quote and raw strings.
aziz
parents: 32
diff changeset
794 case '`':
cf3047cf3cd2 - Added code for parsing back quote and raw strings.
aziz
parents: 32
diff changeset
795 case '"':
cf3047cf3cd2 - Added code for parsing back quote and raw strings.
aziz
parents: 32
diff changeset
796 if (c == delim)
cf3047cf3cd2 - Added code for parsing back quote and raw strings.
aziz
parents: 32
diff changeset
797 {
cf3047cf3cd2 - Added code for parsing back quote and raw strings.
aziz
parents: 32
diff changeset
798 ++p;
cf3047cf3cd2 - Added code for parsing back quote and raw strings.
aziz
parents: 32
diff changeset
799 t.pf = scanPostfix();
cf3047cf3cd2 - Added code for parsing back quote and raw strings.
aziz
parents: 32
diff changeset
800 Lreturn:
cf3047cf3cd2 - Added code for parsing back quote and raw strings.
aziz
parents: 32
diff changeset
801 t.str = buffer ~ '\0';
cf3047cf3cd2 - Added code for parsing back quote and raw strings.
aziz
parents: 32
diff changeset
802 t.end = p;
cf3047cf3cd2 - Added code for parsing back quote and raw strings.
aziz
parents: 32
diff changeset
803 return;
cf3047cf3cd2 - Added code for parsing back quote and raw strings.
aziz
parents: 32
diff changeset
804 }
cf3047cf3cd2 - Added code for parsing back quote and raw strings.
aziz
parents: 32
diff changeset
805 break;
cf3047cf3cd2 - Added code for parsing back quote and raw strings.
aziz
parents: 32
diff changeset
806 case LS[0]:
cf3047cf3cd2 - Added code for parsing back quote and raw strings.
aziz
parents: 32
diff changeset
807 if (p[1] == LS[1] && (p[2] == LS[2] || p[2] == PS[2]))
cf3047cf3cd2 - Added code for parsing back quote and raw strings.
aziz
parents: 32
diff changeset
808 {
52
f65a83c27638 - Fixed the raw string literal scanner. Newlines weren't copied to the buffer. Converting LS and PS to '\n' as well.
aziz
parents: 51
diff changeset
809 c = '\n';
f65a83c27638 - Fixed the raw string literal scanner. Newlines weren't copied to the buffer. Converting LS and PS to '\n' as well.
aziz
parents: 51
diff changeset
810 ++p; ++p;
33
cf3047cf3cd2 - Added code for parsing back quote and raw strings.
aziz
parents: 32
diff changeset
811 ++loc;
cf3047cf3cd2 - Added code for parsing back quote and raw strings.
aziz
parents: 32
diff changeset
812 }
cf3047cf3cd2 - Added code for parsing back quote and raw strings.
aziz
parents: 32
diff changeset
813 break;
cf3047cf3cd2 - Added code for parsing back quote and raw strings.
aziz
parents: 32
diff changeset
814 case 0, _Z_:
cf3047cf3cd2 - Added code for parsing back quote and raw strings.
aziz
parents: 32
diff changeset
815 if (delim == 'r')
cf3047cf3cd2 - Added code for parsing back quote and raw strings.
aziz
parents: 32
diff changeset
816 error(MID.UnterminatedRawString);
cf3047cf3cd2 - Added code for parsing back quote and raw strings.
aziz
parents: 32
diff changeset
817 else
cf3047cf3cd2 - Added code for parsing back quote and raw strings.
aziz
parents: 32
diff changeset
818 error(MID.UnterminatedBackQuoteString);
cf3047cf3cd2 - Added code for parsing back quote and raw strings.
aziz
parents: 32
diff changeset
819 goto Lreturn;
cf3047cf3cd2 - Added code for parsing back quote and raw strings.
aziz
parents: 32
diff changeset
820 default:
cf3047cf3cd2 - Added code for parsing back quote and raw strings.
aziz
parents: 32
diff changeset
821 }
cf3047cf3cd2 - Added code for parsing back quote and raw strings.
aziz
parents: 32
diff changeset
822 buffer ~= c; // copy character to buffer
cf3047cf3cd2 - Added code for parsing back quote and raw strings.
aziz
parents: 32
diff changeset
823 }
cf3047cf3cd2 - Added code for parsing back quote and raw strings.
aziz
parents: 32
diff changeset
824 assert(0);
31
94f09f4e988e - Added struct for strings to Token with 'pf' = postfix.
aziz
parents: 30
diff changeset
825 }
94f09f4e988e - Added struct for strings to Token with 'pf' = postfix.
aziz
parents: 30
diff changeset
826
94f09f4e988e - Added struct for strings to Token with 'pf' = postfix.
aziz
parents: 30
diff changeset
827 void scanHexStringLiteral(ref Token t)
94f09f4e988e - Added struct for strings to Token with 'pf' = postfix.
aziz
parents: 30
diff changeset
828 {
94f09f4e988e - Added struct for strings to Token with 'pf' = postfix.
aziz
parents: 30
diff changeset
829 assert(p[0] == 'x' && p[1] == '"');
94f09f4e988e - Added struct for strings to Token with 'pf' = postfix.
aziz
parents: 30
diff changeset
830 t.type = TOK.String;
94f09f4e988e - Added struct for strings to Token with 'pf' = postfix.
aziz
parents: 30
diff changeset
831
94f09f4e988e - Added struct for strings to Token with 'pf' = postfix.
aziz
parents: 30
diff changeset
832 uint c;
94f09f4e988e - Added struct for strings to Token with 'pf' = postfix.
aziz
parents: 30
diff changeset
833 ubyte[] buffer;
94f09f4e988e - Added struct for strings to Token with 'pf' = postfix.
aziz
parents: 30
diff changeset
834 ubyte h; // hex number
94f09f4e988e - Added struct for strings to Token with 'pf' = postfix.
aziz
parents: 30
diff changeset
835 uint n; // number of hex digits
94f09f4e988e - Added struct for strings to Token with 'pf' = postfix.
aziz
parents: 30
diff changeset
836
53
1786c2825491 - Fixed scanner for hex string literals. Terminating string with 0. Relocated some code to the bottom.
aziz
parents: 52
diff changeset
837 ++p;
31
94f09f4e988e - Added struct for strings to Token with 'pf' = postfix.
aziz
parents: 30
diff changeset
838 while (1)
94f09f4e988e - Added struct for strings to Token with 'pf' = postfix.
aziz
parents: 30
diff changeset
839 {
53
1786c2825491 - Fixed scanner for hex string literals. Terminating string with 0. Relocated some code to the bottom.
aziz
parents: 52
diff changeset
840 c = *++p;
31
94f09f4e988e - Added struct for strings to Token with 'pf' = postfix.
aziz
parents: 30
diff changeset
841 switch (c)
94f09f4e988e - Added struct for strings to Token with 'pf' = postfix.
aziz
parents: 30
diff changeset
842 {
94f09f4e988e - Added struct for strings to Token with 'pf' = postfix.
aziz
parents: 30
diff changeset
843 case '"':
53
1786c2825491 - Fixed scanner for hex string literals. Terminating string with 0. Relocated some code to the bottom.
aziz
parents: 52
diff changeset
844 ++p;
31
94f09f4e988e - Added struct for strings to Token with 'pf' = postfix.
aziz
parents: 30
diff changeset
845 if (n & 1)
53
1786c2825491 - Fixed scanner for hex string literals. Terminating string with 0. Relocated some code to the bottom.
aziz
parents: 52
diff changeset
846 error(MID.OddNumberOfDigitsInHexString);
1786c2825491 - Fixed scanner for hex string literals. Terminating string with 0. Relocated some code to the bottom.
aziz
parents: 52
diff changeset
847 t.pf = scanPostfix();
1786c2825491 - Fixed scanner for hex string literals. Terminating string with 0. Relocated some code to the bottom.
aziz
parents: 52
diff changeset
848 Lreturn:
1786c2825491 - Fixed scanner for hex string literals. Terminating string with 0. Relocated some code to the bottom.
aziz
parents: 52
diff changeset
849 buffer ~= 0;
31
94f09f4e988e - Added struct for strings to Token with 'pf' = postfix.
aziz
parents: 30
diff changeset
850 t.str = cast(string) buffer;
94f09f4e988e - Added struct for strings to Token with 'pf' = postfix.
aziz
parents: 30
diff changeset
851 t.end = p;
94f09f4e988e - Added struct for strings to Token with 'pf' = postfix.
aziz
parents: 30
diff changeset
852 return;
94f09f4e988e - Added struct for strings to Token with 'pf' = postfix.
aziz
parents: 30
diff changeset
853 case '\r':
53
1786c2825491 - Fixed scanner for hex string literals. Terminating string with 0. Relocated some code to the bottom.
aziz
parents: 52
diff changeset
854 if (p[1] == '\n')
31
94f09f4e988e - Added struct for strings to Token with 'pf' = postfix.
aziz
parents: 30
diff changeset
855 ++p;
94f09f4e988e - Added struct for strings to Token with 'pf' = postfix.
aziz
parents: 30
diff changeset
856 case '\n':
94f09f4e988e - Added struct for strings to Token with 'pf' = postfix.
aziz
parents: 30
diff changeset
857 ++loc;
94f09f4e988e - Added struct for strings to Token with 'pf' = postfix.
aziz
parents: 30
diff changeset
858 continue;
94f09f4e988e - Added struct for strings to Token with 'pf' = postfix.
aziz
parents: 30
diff changeset
859 default:
94f09f4e988e - Added struct for strings to Token with 'pf' = postfix.
aziz
parents: 30
diff changeset
860 if (ishexad(c))
94f09f4e988e - Added struct for strings to Token with 'pf' = postfix.
aziz
parents: 30
diff changeset
861 {
94f09f4e988e - Added struct for strings to Token with 'pf' = postfix.
aziz
parents: 30
diff changeset
862 if (c <= '9')
94f09f4e988e - Added struct for strings to Token with 'pf' = postfix.
aziz
parents: 30
diff changeset
863 c -= '0';
94f09f4e988e - Added struct for strings to Token with 'pf' = postfix.
aziz
parents: 30
diff changeset
864 else if (c <= 'F')
94f09f4e988e - Added struct for strings to Token with 'pf' = postfix.
aziz
parents: 30
diff changeset
865 c -= 'A' - 10;
94f09f4e988e - Added struct for strings to Token with 'pf' = postfix.
aziz
parents: 30
diff changeset
866 else
94f09f4e988e - Added struct for strings to Token with 'pf' = postfix.
aziz
parents: 30
diff changeset
867 c -= 'a' - 10;
94f09f4e988e - Added struct for strings to Token with 'pf' = postfix.
aziz
parents: 30
diff changeset
868
94f09f4e988e - Added struct for strings to Token with 'pf' = postfix.
aziz
parents: 30
diff changeset
869 if (n & 1)
94f09f4e988e - Added struct for strings to Token with 'pf' = postfix.
aziz
parents: 30
diff changeset
870 {
94f09f4e988e - Added struct for strings to Token with 'pf' = postfix.
aziz
parents: 30
diff changeset
871 h <<= 4;
94f09f4e988e - Added struct for strings to Token with 'pf' = postfix.
aziz
parents: 30
diff changeset
872 h |= c;
94f09f4e988e - Added struct for strings to Token with 'pf' = postfix.
aziz
parents: 30
diff changeset
873 buffer ~= h;
94f09f4e988e - Added struct for strings to Token with 'pf' = postfix.
aziz
parents: 30
diff changeset
874 }
94f09f4e988e - Added struct for strings to Token with 'pf' = postfix.
aziz
parents: 30
diff changeset
875 else
112
004d98df65af - Implemented parseInterfaceDeclaration().
aziz
parents: 105
diff changeset
876 h = cast(ubyte)c;
31
94f09f4e988e - Added struct for strings to Token with 'pf' = postfix.
aziz
parents: 30
diff changeset
877 ++n;
94f09f4e988e - Added struct for strings to Token with 'pf' = postfix.
aziz
parents: 30
diff changeset
878 continue;
94f09f4e988e - Added struct for strings to Token with 'pf' = postfix.
aziz
parents: 30
diff changeset
879 }
94f09f4e988e - Added struct for strings to Token with 'pf' = postfix.
aziz
parents: 30
diff changeset
880 else if (isspace(c))
94f09f4e988e - Added struct for strings to Token with 'pf' = postfix.
aziz
parents: 30
diff changeset
881 continue;
67
996065105910 - Fix: variadic arguments are local to the variadic function. Parameters are converted to an array of strings first and then passed to the constructor of class Problem.
aziz
parents: 66
diff changeset
882
996065105910 - Fix: variadic arguments are local to the variadic function. Parameters are converted to an array of strings first and then passed to the constructor of class Problem.
aziz
parents: 66
diff changeset
883 if (c >= 128)
53
1786c2825491 - Fixed scanner for hex string literals. Terminating string with 0. Relocated some code to the bottom.
aziz
parents: 52
diff changeset
884 {
67
996065105910 - Fix: variadic arguments are local to the variadic function. Parameters are converted to an array of strings first and then passed to the constructor of class Problem.
aziz
parents: 66
diff changeset
885 c = decodeUTF8();
996065105910 - Fix: variadic arguments are local to the variadic function. Parameters are converted to an array of strings first and then passed to the constructor of class Problem.
aziz
parents: 66
diff changeset
886 if (c == LSd || c == PSd)
996065105910 - Fix: variadic arguments are local to the variadic function. Parameters are converted to an array of strings first and then passed to the constructor of class Problem.
aziz
parents: 66
diff changeset
887 {
996065105910 - Fix: variadic arguments are local to the variadic function. Parameters are converted to an array of strings first and then passed to the constructor of class Problem.
aziz
parents: 66
diff changeset
888 ++p; ++p;
996065105910 - Fix: variadic arguments are local to the variadic function. Parameters are converted to an array of strings first and then passed to the constructor of class Problem.
aziz
parents: 66
diff changeset
889 ++loc;
996065105910 - Fix: variadic arguments are local to the variadic function. Parameters are converted to an array of strings first and then passed to the constructor of class Problem.
aziz
parents: 66
diff changeset
890 continue;
996065105910 - Fix: variadic arguments are local to the variadic function. Parameters are converted to an array of strings first and then passed to the constructor of class Problem.
aziz
parents: 66
diff changeset
891 }
53
1786c2825491 - Fixed scanner for hex string literals. Terminating string with 0. Relocated some code to the bottom.
aziz
parents: 52
diff changeset
892 }
1786c2825491 - Fixed scanner for hex string literals. Terminating string with 0. Relocated some code to the bottom.
aziz
parents: 52
diff changeset
893 else if (c == 0 || c == _Z_)
1786c2825491 - Fixed scanner for hex string literals. Terminating string with 0. Relocated some code to the bottom.
aziz
parents: 52
diff changeset
894 {
1786c2825491 - Fixed scanner for hex string literals. Terminating string with 0. Relocated some code to the bottom.
aziz
parents: 52
diff changeset
895 error(MID.UnterminatedHexString);
1786c2825491 - Fixed scanner for hex string literals. Terminating string with 0. Relocated some code to the bottom.
aziz
parents: 52
diff changeset
896 t.pf = 0;
1786c2825491 - Fixed scanner for hex string literals. Terminating string with 0. Relocated some code to the bottom.
aziz
parents: 52
diff changeset
897 goto Lreturn;
1786c2825491 - Fixed scanner for hex string literals. Terminating string with 0. Relocated some code to the bottom.
aziz
parents: 52
diff changeset
898 }
67
996065105910 - Fix: variadic arguments are local to the variadic function. Parameters are converted to an array of strings first and then passed to the constructor of class Problem.
aziz
parents: 66
diff changeset
899 error(MID.NonHexCharInHexString, cast(dchar)c);
31
94f09f4e988e - Added struct for strings to Token with 'pf' = postfix.
aziz
parents: 30
diff changeset
900 }
94f09f4e988e - Added struct for strings to Token with 'pf' = postfix.
aziz
parents: 30
diff changeset
901 }
53
1786c2825491 - Fixed scanner for hex string literals. Terminating string with 0. Relocated some code to the bottom.
aziz
parents: 52
diff changeset
902 assert(0);
31
94f09f4e988e - Added struct for strings to Token with 'pf' = postfix.
aziz
parents: 30
diff changeset
903 }
94f09f4e988e - Added struct for strings to Token with 'pf' = postfix.
aziz
parents: 30
diff changeset
904
45
cc84b9ca9d0a - Implemented escape sequence scanner.
aziz
parents: 44
diff changeset
905 dchar scanEscapeSequence()
cc84b9ca9d0a - Implemented escape sequence scanner.
aziz
parents: 44
diff changeset
906 {
cc84b9ca9d0a - Implemented escape sequence scanner.
aziz
parents: 44
diff changeset
907 uint c = char2ev(*p);
82
fc645fb2fe72 - scanEscapeSequences() doesn't return 0xFFFF as an error value anymore, because it is a valid codepoint usable by the user.
aziz
parents: 71
diff changeset
908 if (c)
fc645fb2fe72 - scanEscapeSequences() doesn't return 0xFFFF as an error value anymore, because it is a valid codepoint usable by the user.
aziz
parents: 71
diff changeset
909 {
46
e0dbd4722f74 - Scanning character literals correctly now.
aziz
parents: 45
diff changeset
910 ++p;
45
cc84b9ca9d0a - Implemented escape sequence scanner.
aziz
parents: 44
diff changeset
911 return c;
46
e0dbd4722f74 - Scanning character literals correctly now.
aziz
parents: 45
diff changeset
912 }
45
cc84b9ca9d0a - Implemented escape sequence scanner.
aziz
parents: 44
diff changeset
913 uint digits = 2;
cc84b9ca9d0a - Implemented escape sequence scanner.
aziz
parents: 44
diff changeset
914
cc84b9ca9d0a - Implemented escape sequence scanner.
aziz
parents: 44
diff changeset
915 switch (*p)
cc84b9ca9d0a - Implemented escape sequence scanner.
aziz
parents: 44
diff changeset
916 {
cc84b9ca9d0a - Implemented escape sequence scanner.
aziz
parents: 44
diff changeset
917 case 'x':
cc84b9ca9d0a - Implemented escape sequence scanner.
aziz
parents: 44
diff changeset
918 c = 0;
cc84b9ca9d0a - Implemented escape sequence scanner.
aziz
parents: 44
diff changeset
919 while (1)
cc84b9ca9d0a - Implemented escape sequence scanner.
aziz
parents: 44
diff changeset
920 {
cc84b9ca9d0a - Implemented escape sequence scanner.
aziz
parents: 44
diff changeset
921 ++p;
cc84b9ca9d0a - Implemented escape sequence scanner.
aziz
parents: 44
diff changeset
922 if (ishexad(*p))
cc84b9ca9d0a - Implemented escape sequence scanner.
aziz
parents: 44
diff changeset
923 {
cc84b9ca9d0a - Implemented escape sequence scanner.
aziz
parents: 44
diff changeset
924 c *= 16;
cc84b9ca9d0a - Implemented escape sequence scanner.
aziz
parents: 44
diff changeset
925 if (*p <= '9')
48
c2e0e0269c28 - Added code for scanning escape string literals.
aziz
parents: 47
diff changeset
926 c += *p - '0';
45
cc84b9ca9d0a - Implemented escape sequence scanner.
aziz
parents: 44
diff changeset
927 else if (*p <= 'F')
48
c2e0e0269c28 - Added code for scanning escape string literals.
aziz
parents: 47
diff changeset
928 c += *p - 'A' + 10;
45
cc84b9ca9d0a - Implemented escape sequence scanner.
aziz
parents: 44
diff changeset
929 else
48
c2e0e0269c28 - Added code for scanning escape string literals.
aziz
parents: 47
diff changeset
930 c += *p - 'a' + 10;
82
fc645fb2fe72 - scanEscapeSequences() doesn't return 0xFFFF as an error value anymore, because it is a valid codepoint usable by the user.
aziz
parents: 71
diff changeset
931
fc645fb2fe72 - scanEscapeSequences() doesn't return 0xFFFF as an error value anymore, because it is a valid codepoint usable by the user.
aziz
parents: 71
diff changeset
932 if (!--digits)
fc645fb2fe72 - scanEscapeSequences() doesn't return 0xFFFF as an error value anymore, because it is a valid codepoint usable by the user.
aziz
parents: 71
diff changeset
933 {
48
c2e0e0269c28 - Added code for scanning escape string literals.
aziz
parents: 47
diff changeset
934 ++p;
45
cc84b9ca9d0a - Implemented escape sequence scanner.
aziz
parents: 44
diff changeset
935 break;
48
c2e0e0269c28 - Added code for scanning escape string literals.
aziz
parents: 47
diff changeset
936 }
45
cc84b9ca9d0a - Implemented escape sequence scanner.
aziz
parents: 44
diff changeset
937 }
cc84b9ca9d0a - Implemented escape sequence scanner.
aziz
parents: 44
diff changeset
938 else
cc84b9ca9d0a - Implemented escape sequence scanner.
aziz
parents: 44
diff changeset
939 {
cc84b9ca9d0a - Implemented escape sequence scanner.
aziz
parents: 44
diff changeset
940 error(MID.InsufficientHexDigits);
cc84b9ca9d0a - Implemented escape sequence scanner.
aziz
parents: 44
diff changeset
941 break;
cc84b9ca9d0a - Implemented escape sequence scanner.
aziz
parents: 44
diff changeset
942 }
cc84b9ca9d0a - Implemented escape sequence scanner.
aziz
parents: 44
diff changeset
943 }
82
fc645fb2fe72 - scanEscapeSequences() doesn't return 0xFFFF as an error value anymore, because it is a valid codepoint usable by the user.
aziz
parents: 71
diff changeset
944 if (!isValidDchar(c))
fc645fb2fe72 - scanEscapeSequences() doesn't return 0xFFFF as an error value anymore, because it is a valid codepoint usable by the user.
aziz
parents: 71
diff changeset
945 error(MID.InvalidUnicodeCharacter);
45
cc84b9ca9d0a - Implemented escape sequence scanner.
aziz
parents: 44
diff changeset
946 break;
cc84b9ca9d0a - Implemented escape sequence scanner.
aziz
parents: 44
diff changeset
947 case 'u':
cc84b9ca9d0a - Implemented escape sequence scanner.
aziz
parents: 44
diff changeset
948 digits = 4;
cc84b9ca9d0a - Implemented escape sequence scanner.
aziz
parents: 44
diff changeset
949 goto case 'x';
cc84b9ca9d0a - Implemented escape sequence scanner.
aziz
parents: 44
diff changeset
950 case 'U':
cc84b9ca9d0a - Implemented escape sequence scanner.
aziz
parents: 44
diff changeset
951 digits = 8;
cc84b9ca9d0a - Implemented escape sequence scanner.
aziz
parents: 44
diff changeset
952 goto case 'x';
cc84b9ca9d0a - Implemented escape sequence scanner.
aziz
parents: 44
diff changeset
953 default:
48
c2e0e0269c28 - Added code for scanning escape string literals.
aziz
parents: 47
diff changeset
954 if (isoctal(*p))
45
cc84b9ca9d0a - Implemented escape sequence scanner.
aziz
parents: 44
diff changeset
955 {
48
c2e0e0269c28 - Added code for scanning escape string literals.
aziz
parents: 47
diff changeset
956 c = 0;
c2e0e0269c28 - Added code for scanning escape string literals.
aziz
parents: 47
diff changeset
957 c += *p - '0';
c2e0e0269c28 - Added code for scanning escape string literals.
aziz
parents: 47
diff changeset
958 ++p;
c2e0e0269c28 - Added code for scanning escape string literals.
aziz
parents: 47
diff changeset
959 if (!isoctal(*p))
c2e0e0269c28 - Added code for scanning escape string literals.
aziz
parents: 47
diff changeset
960 return c;
c2e0e0269c28 - Added code for scanning escape string literals.
aziz
parents: 47
diff changeset
961 c *= 8;
c2e0e0269c28 - Added code for scanning escape string literals.
aziz
parents: 47
diff changeset
962 c += *p - '0';
c2e0e0269c28 - Added code for scanning escape string literals.
aziz
parents: 47
diff changeset
963 ++p;
c2e0e0269c28 - Added code for scanning escape string literals.
aziz
parents: 47
diff changeset
964 if (!isoctal(*p))
c2e0e0269c28 - Added code for scanning escape string literals.
aziz
parents: 47
diff changeset
965 return c;
c2e0e0269c28 - Added code for scanning escape string literals.
aziz
parents: 47
diff changeset
966 c *= 8;
c2e0e0269c28 - Added code for scanning escape string literals.
aziz
parents: 47
diff changeset
967 c += *p - '0';
c2e0e0269c28 - Added code for scanning escape string literals.
aziz
parents: 47
diff changeset
968 ++p;
c2e0e0269c28 - Added code for scanning escape string literals.
aziz
parents: 47
diff changeset
969 }
c2e0e0269c28 - Added code for scanning escape string literals.
aziz
parents: 47
diff changeset
970 else if(*p == '&')
c2e0e0269c28 - Added code for scanning escape string literals.
aziz
parents: 47
diff changeset
971 {
c2e0e0269c28 - Added code for scanning escape string literals.
aziz
parents: 47
diff changeset
972 if (isalpha(*++p))
45
cc84b9ca9d0a - Implemented escape sequence scanner.
aziz
parents: 44
diff changeset
973 {
272
0bde32503976 - Added module HtmlEntities. It contains a table for converting HTML entities to Unicode characters.
aziz
parents: 249
diff changeset
974 auto begin = p;
0bde32503976 - Added module HtmlEntities. It contains a table for converting HTML entities to Unicode characters.
aziz
parents: 249
diff changeset
975 while (isalnum(*++p))
0bde32503976 - Added module HtmlEntities. It contains a table for converting HTML entities to Unicode characters.
aziz
parents: 249
diff changeset
976 {}
0bde32503976 - Added module HtmlEntities. It contains a table for converting HTML entities to Unicode characters.
aziz
parents: 249
diff changeset
977
0bde32503976 - Added module HtmlEntities. It contains a table for converting HTML entities to Unicode characters.
aziz
parents: 249
diff changeset
978 if (*p == ';')
48
c2e0e0269c28 - Added code for scanning escape string literals.
aziz
parents: 47
diff changeset
979 {
272
0bde32503976 - Added module HtmlEntities. It contains a table for converting HTML entities to Unicode characters.
aziz
parents: 249
diff changeset
980 c = entity2Unicode(begin[0..p - begin]);
0bde32503976 - Added module HtmlEntities. It contains a table for converting HTML entities to Unicode characters.
aziz
parents: 249
diff changeset
981 ++p;
0bde32503976 - Added module HtmlEntities. It contains a table for converting HTML entities to Unicode characters.
aziz
parents: 249
diff changeset
982 if (c == 0xFFFF)
0bde32503976 - Added module HtmlEntities. It contains a table for converting HTML entities to Unicode characters.
aziz
parents: 249
diff changeset
983 error(MID.UndefinedHTMLEntity, (begin-1)[0..p-(begin-1)]);
0bde32503976 - Added module HtmlEntities. It contains a table for converting HTML entities to Unicode characters.
aziz
parents: 249
diff changeset
984 }
0bde32503976 - Added module HtmlEntities. It contains a table for converting HTML entities to Unicode characters.
aziz
parents: 249
diff changeset
985 else
0bde32503976 - Added module HtmlEntities. It contains a table for converting HTML entities to Unicode characters.
aziz
parents: 249
diff changeset
986 error(MID.UnterminatedHTMLEntity);
45
cc84b9ca9d0a - Implemented escape sequence scanner.
aziz
parents: 44
diff changeset
987 }
48
c2e0e0269c28 - Added code for scanning escape string literals.
aziz
parents: 47
diff changeset
988 else
c2e0e0269c28 - Added code for scanning escape string literals.
aziz
parents: 47
diff changeset
989 error(MID.InvalidBeginHTMLEntity);
45
cc84b9ca9d0a - Implemented escape sequence scanner.
aziz
parents: 44
diff changeset
990 }
cc84b9ca9d0a - Implemented escape sequence scanner.
aziz
parents: 44
diff changeset
991 else
48
c2e0e0269c28 - Added code for scanning escape string literals.
aziz
parents: 47
diff changeset
992 error(MID.UndefinedEscapeSequence);
45
cc84b9ca9d0a - Implemented escape sequence scanner.
aziz
parents: 44
diff changeset
993 }
cc84b9ca9d0a - Implemented escape sequence scanner.
aziz
parents: 44
diff changeset
994
cc84b9ca9d0a - Implemented escape sequence scanner.
aziz
parents: 44
diff changeset
995 return c;
cc84b9ca9d0a - Implemented escape sequence scanner.
aziz
parents: 44
diff changeset
996 }
cc84b9ca9d0a - Implemented escape sequence scanner.
aziz
parents: 44
diff changeset
997
56
63af7ddf52e1 - Started properly implementing number scanner. Added stub for real numbers.
aziz
parents: 55
diff changeset
998 /*
63af7ddf52e1 - Started properly implementing number scanner. Added stub for real numbers.
aziz
parents: 55
diff changeset
999 IntegerLiteral:= (Dec|Hex|Bin|Oct)Suffix?
63af7ddf52e1 - Started properly implementing number scanner. Added stub for real numbers.
aziz
parents: 55
diff changeset
1000 Dec:= (0|[1-9][0-9_]*)
63af7ddf52e1 - Started properly implementing number scanner. Added stub for real numbers.
aziz
parents: 55
diff changeset
1001 Hex:= 0[xX] HexDigits
63af7ddf52e1 - Started properly implementing number scanner. Added stub for real numbers.
aziz
parents: 55
diff changeset
1002 Bin:= 0[bB][01_]+
63af7ddf52e1 - Started properly implementing number scanner. Added stub for real numbers.
aziz
parents: 55
diff changeset
1003 Oct:= 0[0-7_]+
68
7eb83dd38901 - Simplified suffix rule and added a few more numbers to unittest.
aziz
parents: 67
diff changeset
1004 Suffix:= (L[uU]?|[uU]L?)
56
63af7ddf52e1 - Started properly implementing number scanner. Added stub for real numbers.
aziz
parents: 55
diff changeset
1005 HexDigits:= [0-9a-zA-Z_]+
63af7ddf52e1 - Started properly implementing number scanner. Added stub for real numbers.
aziz
parents: 55
diff changeset
1006
63af7ddf52e1 - Started properly implementing number scanner. Added stub for real numbers.
aziz
parents: 55
diff changeset
1007 Invalid: "0b_", "0x_", "._"
63af7ddf52e1 - Started properly implementing number scanner. Added stub for real numbers.
aziz
parents: 55
diff changeset
1008 */
15
c70c028e47dd - Started implementation of lexing numbers.
aziz
parents: 14
diff changeset
1009 void scanNumber(ref Token t)
c70c028e47dd - Started implementation of lexing numbers.
aziz
parents: 14
diff changeset
1010 {
56
63af7ddf52e1 - Started properly implementing number scanner. Added stub for real numbers.
aziz
parents: 55
diff changeset
1011 ulong ulong_;
63af7ddf52e1 - Started properly implementing number scanner. Added stub for real numbers.
aziz
parents: 55
diff changeset
1012 bool overflow;
58
50bb7fc9db44 - The types of integers are recognized now.
aziz
parents: 57
diff changeset
1013 bool isDecimal;
57
c0f1c8be3a47 - Added code for converting hex characters to binary numbers.
aziz
parents: 56
diff changeset
1014 size_t digits;
56
63af7ddf52e1 - Started properly implementing number scanner. Added stub for real numbers.
aziz
parents: 55
diff changeset
1015
63af7ddf52e1 - Started properly implementing number scanner. Added stub for real numbers.
aziz
parents: 55
diff changeset
1016 if (*p != '0')
63af7ddf52e1 - Started properly implementing number scanner. Added stub for real numbers.
aziz
parents: 55
diff changeset
1017 goto LscanInteger;
63af7ddf52e1 - Started properly implementing number scanner. Added stub for real numbers.
aziz
parents: 55
diff changeset
1018 ++p; // skip zero
63af7ddf52e1 - Started properly implementing number scanner. Added stub for real numbers.
aziz
parents: 55
diff changeset
1019 // check for xX bB ...
63af7ddf52e1 - Started properly implementing number scanner. Added stub for real numbers.
aziz
parents: 55
diff changeset
1020 switch (*p)
63af7ddf52e1 - Started properly implementing number scanner. Added stub for real numbers.
aziz
parents: 55
diff changeset
1021 {
63af7ddf52e1 - Started properly implementing number scanner. Added stub for real numbers.
aziz
parents: 55
diff changeset
1022 case 'x','X':
63af7ddf52e1 - Started properly implementing number scanner. Added stub for real numbers.
aziz
parents: 55
diff changeset
1023 goto LscanHex;
63af7ddf52e1 - Started properly implementing number scanner. Added stub for real numbers.
aziz
parents: 55
diff changeset
1024 case 'b','B':
63af7ddf52e1 - Started properly implementing number scanner. Added stub for real numbers.
aziz
parents: 55
diff changeset
1025 goto LscanBin;
63af7ddf52e1 - Started properly implementing number scanner. Added stub for real numbers.
aziz
parents: 55
diff changeset
1026 case 'L':
63af7ddf52e1 - Started properly implementing number scanner. Added stub for real numbers.
aziz
parents: 55
diff changeset
1027 if (p[1] == 'i')
63af7ddf52e1 - Started properly implementing number scanner. Added stub for real numbers.
aziz
parents: 55
diff changeset
1028 goto LscanReal;
63af7ddf52e1 - Started properly implementing number scanner. Added stub for real numbers.
aziz
parents: 55
diff changeset
1029 case '.':
63af7ddf52e1 - Started properly implementing number scanner. Added stub for real numbers.
aziz
parents: 55
diff changeset
1030 if (p[1] == '.')
63af7ddf52e1 - Started properly implementing number scanner. Added stub for real numbers.
aziz
parents: 55
diff changeset
1031 break;
58
50bb7fc9db44 - The types of integers are recognized now.
aziz
parents: 57
diff changeset
1032 case 'i','f','F', 'e', 'E': // Imaginary and float literal suffix
56
63af7ddf52e1 - Started properly implementing number scanner. Added stub for real numbers.
aziz
parents: 55
diff changeset
1033 goto LscanReal;
63af7ddf52e1 - Started properly implementing number scanner. Added stub for real numbers.
aziz
parents: 55
diff changeset
1034 default:
323
6259fb93e3dd - Rewrote scanSpecialToken().
aziz
parents: 315
diff changeset
1035 if (*p == '_' || isoctal(*p))
56
63af7ddf52e1 - Started properly implementing number scanner. Added stub for real numbers.
aziz
parents: 55
diff changeset
1036 goto LscanOct;
63af7ddf52e1 - Started properly implementing number scanner. Added stub for real numbers.
aziz
parents: 55
diff changeset
1037 }
63af7ddf52e1 - Started properly implementing number scanner. Added stub for real numbers.
aziz
parents: 55
diff changeset
1038
323
6259fb93e3dd - Rewrote scanSpecialToken().
aziz
parents: 315
diff changeset
1039 // Number 0
6259fb93e3dd - Rewrote scanSpecialToken().
aziz
parents: 315
diff changeset
1040 assert(p[-1] == '0');
6259fb93e3dd - Rewrote scanSpecialToken().
aziz
parents: 315
diff changeset
1041 assert(ulong_ == 0);
58
50bb7fc9db44 - The types of integers are recognized now.
aziz
parents: 57
diff changeset
1042 isDecimal = true;
50bb7fc9db44 - The types of integers are recognized now.
aziz
parents: 57
diff changeset
1043 goto Lfinalize;
50bb7fc9db44 - The types of integers are recognized now.
aziz
parents: 57
diff changeset
1044
56
63af7ddf52e1 - Started properly implementing number scanner. Added stub for real numbers.
aziz
parents: 55
diff changeset
1045 LscanInteger:
323
6259fb93e3dd - Rewrote scanSpecialToken().
aziz
parents: 315
diff changeset
1046 assert(*p != 0 && isdigit(*p));
58
50bb7fc9db44 - The types of integers are recognized now.
aziz
parents: 57
diff changeset
1047 isDecimal = true;
323
6259fb93e3dd - Rewrote scanSpecialToken().
aziz
parents: 315
diff changeset
1048 goto Lenter_loop_int;
63
c29229fbf2f7 - Recognizing floats that start with a dot.
aziz
parents: 62
diff changeset
1049 while (1)
56
63af7ddf52e1 - Started properly implementing number scanner. Added stub for real numbers.
aziz
parents: 55
diff changeset
1050 {
63
c29229fbf2f7 - Recognizing floats that start with a dot.
aziz
parents: 62
diff changeset
1051 if (*++p == '_')
56
63af7ddf52e1 - Started properly implementing number scanner. Added stub for real numbers.
aziz
parents: 55
diff changeset
1052 continue;
63
c29229fbf2f7 - Recognizing floats that start with a dot.
aziz
parents: 62
diff changeset
1053 if (!isdigit(*p))
c29229fbf2f7 - Recognizing floats that start with a dot.
aziz
parents: 62
diff changeset
1054 break;
323
6259fb93e3dd - Rewrote scanSpecialToken().
aziz
parents: 315
diff changeset
1055 Lenter_loop_int:
56
63af7ddf52e1 - Started properly implementing number scanner. Added stub for real numbers.
aziz
parents: 55
diff changeset
1056 if (ulong_ < ulong.max/10 || (ulong_ == ulong.max/10 && *p <= '5'))
63af7ddf52e1 - Started properly implementing number scanner. Added stub for real numbers.
aziz
parents: 55
diff changeset
1057 {
63af7ddf52e1 - Started properly implementing number scanner. Added stub for real numbers.
aziz
parents: 55
diff changeset
1058 ulong_ *= 10;
63af7ddf52e1 - Started properly implementing number scanner. Added stub for real numbers.
aziz
parents: 55
diff changeset
1059 ulong_ += *p - '0';
58
50bb7fc9db44 - The types of integers are recognized now.
aziz
parents: 57
diff changeset
1060 continue;
56
63af7ddf52e1 - Started properly implementing number scanner. Added stub for real numbers.
aziz
parents: 55
diff changeset
1061 }
63af7ddf52e1 - Started properly implementing number scanner. Added stub for real numbers.
aziz
parents: 55
diff changeset
1062 // Overflow: skip following digits.
63af7ddf52e1 - Started properly implementing number scanner. Added stub for real numbers.
aziz
parents: 55
diff changeset
1063 overflow = true;
63af7ddf52e1 - Started properly implementing number scanner. Added stub for real numbers.
aziz
parents: 55
diff changeset
1064 while (isdigit(*++p)) {}
63af7ddf52e1 - Started properly implementing number scanner. Added stub for real numbers.
aziz
parents: 55
diff changeset
1065 break;
63af7ddf52e1 - Started properly implementing number scanner. Added stub for real numbers.
aziz
parents: 55
diff changeset
1066 }
63af7ddf52e1 - Started properly implementing number scanner. Added stub for real numbers.
aziz
parents: 55
diff changeset
1067
61
512cd2248dfc - Fix: issueing error on hexadecimal number overflow.
aziz
parents: 60
diff changeset
1068 // The number could be a float, so check overflow below.
56
63af7ddf52e1 - Started properly implementing number scanner. Added stub for real numbers.
aziz
parents: 55
diff changeset
1069 switch (*p)
63af7ddf52e1 - Started properly implementing number scanner. Added stub for real numbers.
aziz
parents: 55
diff changeset
1070 {
63af7ddf52e1 - Started properly implementing number scanner. Added stub for real numbers.
aziz
parents: 55
diff changeset
1071 case '.':
63af7ddf52e1 - Started properly implementing number scanner. Added stub for real numbers.
aziz
parents: 55
diff changeset
1072 if (p[1] != '.')
63af7ddf52e1 - Started properly implementing number scanner. Added stub for real numbers.
aziz
parents: 55
diff changeset
1073 goto LscanReal;
63af7ddf52e1 - Started properly implementing number scanner. Added stub for real numbers.
aziz
parents: 55
diff changeset
1074 break;
63af7ddf52e1 - Started properly implementing number scanner. Added stub for real numbers.
aziz
parents: 55
diff changeset
1075 case 'L':
63af7ddf52e1 - Started properly implementing number scanner. Added stub for real numbers.
aziz
parents: 55
diff changeset
1076 if (p[1] != 'i')
63af7ddf52e1 - Started properly implementing number scanner. Added stub for real numbers.
aziz
parents: 55
diff changeset
1077 break;
63af7ddf52e1 - Started properly implementing number scanner. Added stub for real numbers.
aziz
parents: 55
diff changeset
1078 case 'i', 'f', 'F', 'e', 'E':
63af7ddf52e1 - Started properly implementing number scanner. Added stub for real numbers.
aziz
parents: 55
diff changeset
1079 goto LscanReal;
58
50bb7fc9db44 - The types of integers are recognized now.
aziz
parents: 57
diff changeset
1080 default:
56
63af7ddf52e1 - Started properly implementing number scanner. Added stub for real numbers.
aziz
parents: 55
diff changeset
1081 }
58
50bb7fc9db44 - The types of integers are recognized now.
aziz
parents: 57
diff changeset
1082
56
63af7ddf52e1 - Started properly implementing number scanner. Added stub for real numbers.
aziz
parents: 55
diff changeset
1083 if (overflow)
63af7ddf52e1 - Started properly implementing number scanner. Added stub for real numbers.
aziz
parents: 55
diff changeset
1084 error(MID.OverflowDecimalNumber);
58
50bb7fc9db44 - The types of integers are recognized now.
aziz
parents: 57
diff changeset
1085
56
63af7ddf52e1 - Started properly implementing number scanner. Added stub for real numbers.
aziz
parents: 55
diff changeset
1086 assert((isdigit(p[-1]) || p[-1] == '_') && !isdigit(*p) && *p != '_');
63af7ddf52e1 - Started properly implementing number scanner. Added stub for real numbers.
aziz
parents: 55
diff changeset
1087 goto Lfinalize;
63af7ddf52e1 - Started properly implementing number scanner. Added stub for real numbers.
aziz
parents: 55
diff changeset
1088
63af7ddf52e1 - Started properly implementing number scanner. Added stub for real numbers.
aziz
parents: 55
diff changeset
1089 LscanHex:
61
512cd2248dfc - Fix: issueing error on hexadecimal number overflow.
aziz
parents: 60
diff changeset
1090 assert(digits == 0);
323
6259fb93e3dd - Rewrote scanSpecialToken().
aziz
parents: 315
diff changeset
1091 assert(*p == 'x');
62
96af5653acef - Fixed loop of hex number scanner. Moved checks under the switch block.
aziz
parents: 61
diff changeset
1092 while (1)
56
63af7ddf52e1 - Started properly implementing number scanner. Added stub for real numbers.
aziz
parents: 55
diff changeset
1093 {
62
96af5653acef - Fixed loop of hex number scanner. Moved checks under the switch block.
aziz
parents: 61
diff changeset
1094 if (*++p == '_')
56
63af7ddf52e1 - Started properly implementing number scanner. Added stub for real numbers.
aziz
parents: 55
diff changeset
1095 continue;
62
96af5653acef - Fixed loop of hex number scanner. Moved checks under the switch block.
aziz
parents: 61
diff changeset
1096 if (!ishexad(*p))
96af5653acef - Fixed loop of hex number scanner. Moved checks under the switch block.
aziz
parents: 61
diff changeset
1097 break;
61
512cd2248dfc - Fix: issueing error on hexadecimal number overflow.
aziz
parents: 60
diff changeset
1098 ++digits;
57
c0f1c8be3a47 - Added code for converting hex characters to binary numbers.
aziz
parents: 56
diff changeset
1099 ulong_ *= 16;
c0f1c8be3a47 - Added code for converting hex characters to binary numbers.
aziz
parents: 56
diff changeset
1100 if (*p <= '9')
c0f1c8be3a47 - Added code for converting hex characters to binary numbers.
aziz
parents: 56
diff changeset
1101 ulong_ += *p - '0';
c0f1c8be3a47 - Added code for converting hex characters to binary numbers.
aziz
parents: 56
diff changeset
1102 else if (*p <= 'F')
c0f1c8be3a47 - Added code for converting hex characters to binary numbers.
aziz
parents: 56
diff changeset
1103 ulong_ += *p - 'A' + 10;
c0f1c8be3a47 - Added code for converting hex characters to binary numbers.
aziz
parents: 56
diff changeset
1104 else
c0f1c8be3a47 - Added code for converting hex characters to binary numbers.
aziz
parents: 56
diff changeset
1105 ulong_ += *p - 'a' + 10;
56
63af7ddf52e1 - Started properly implementing number scanner. Added stub for real numbers.
aziz
parents: 55
diff changeset
1106 }
57
c0f1c8be3a47 - Added code for converting hex characters to binary numbers.
aziz
parents: 56
diff changeset
1107
62
96af5653acef - Fixed loop of hex number scanner. Moved checks under the switch block.
aziz
parents: 61
diff changeset
1108 switch (*p)
96af5653acef - Fixed loop of hex number scanner. Moved checks under the switch block.
aziz
parents: 61
diff changeset
1109 {
96af5653acef - Fixed loop of hex number scanner. Moved checks under the switch block.
aziz
parents: 61
diff changeset
1110 case '.':
96af5653acef - Fixed loop of hex number scanner. Moved checks under the switch block.
aziz
parents: 61
diff changeset
1111 if (p[1] != '.')
96af5653acef - Fixed loop of hex number scanner. Moved checks under the switch block.
aziz
parents: 61
diff changeset
1112 goto LscanHexReal;
96af5653acef - Fixed loop of hex number scanner. Moved checks under the switch block.
aziz
parents: 61
diff changeset
1113 break;
96af5653acef - Fixed loop of hex number scanner. Moved checks under the switch block.
aziz
parents: 61
diff changeset
1114 case 'L':
96af5653acef - Fixed loop of hex number scanner. Moved checks under the switch block.
aziz
parents: 61
diff changeset
1115 if (p[1] != 'i')
96af5653acef - Fixed loop of hex number scanner. Moved checks under the switch block.
aziz
parents: 61
diff changeset
1116 break;
96af5653acef - Fixed loop of hex number scanner. Moved checks under the switch block.
aziz
parents: 61
diff changeset
1117 case 'i', 'p', 'P':
96af5653acef - Fixed loop of hex number scanner. Moved checks under the switch block.
aziz
parents: 61
diff changeset
1118 goto LscanHexReal;
96af5653acef - Fixed loop of hex number scanner. Moved checks under the switch block.
aziz
parents: 61
diff changeset
1119 default:
96af5653acef - Fixed loop of hex number scanner. Moved checks under the switch block.
aziz
parents: 61
diff changeset
1120 }
61
512cd2248dfc - Fix: issueing error on hexadecimal number overflow.
aziz
parents: 60
diff changeset
1121 if (digits == 0)
59
3e594725899a - Issuing error when no digits were found in hex and binary numbers.
aziz
parents: 58
diff changeset
1122 error(MID.NoDigitsInHexNumber);
62
96af5653acef - Fixed loop of hex number scanner. Moved checks under the switch block.
aziz
parents: 61
diff changeset
1123 else if (digits > 16)
61
512cd2248dfc - Fix: issueing error on hexadecimal number overflow.
aziz
parents: 60
diff changeset
1124 {
512cd2248dfc - Fix: issueing error on hexadecimal number overflow.
aziz
parents: 60
diff changeset
1125 // Overflow: skip following digits.
512cd2248dfc - Fix: issueing error on hexadecimal number overflow.
aziz
parents: 60
diff changeset
1126 error(MID.OverflowHexNumber);
512cd2248dfc - Fix: issueing error on hexadecimal number overflow.
aziz
parents: 60
diff changeset
1127 while (ishexad(*++p)) {}
512cd2248dfc - Fix: issueing error on hexadecimal number overflow.
aziz
parents: 60
diff changeset
1128 }
56
63af7ddf52e1 - Started properly implementing number scanner. Added stub for real numbers.
aziz
parents: 55
diff changeset
1129 goto Lfinalize;
62
96af5653acef - Fixed loop of hex number scanner. Moved checks under the switch block.
aziz
parents: 61
diff changeset
1130 LscanHexReal:
96af5653acef - Fixed loop of hex number scanner. Moved checks under the switch block.
aziz
parents: 61
diff changeset
1131 return scanHexReal(t);
56
63af7ddf52e1 - Started properly implementing number scanner. Added stub for real numbers.
aziz
parents: 55
diff changeset
1132
63af7ddf52e1 - Started properly implementing number scanner. Added stub for real numbers.
aziz
parents: 55
diff changeset
1133 LscanBin:
57
c0f1c8be3a47 - Added code for converting hex characters to binary numbers.
aziz
parents: 56
diff changeset
1134 assert(digits == 0);
323
6259fb93e3dd - Rewrote scanSpecialToken().
aziz
parents: 315
diff changeset
1135 assert(*p == 'b');
56
63af7ddf52e1 - Started properly implementing number scanner. Added stub for real numbers.
aziz
parents: 55
diff changeset
1136 while (1)
63af7ddf52e1 - Started properly implementing number scanner. Added stub for real numbers.
aziz
parents: 55
diff changeset
1137 {
63af7ddf52e1 - Started properly implementing number scanner. Added stub for real numbers.
aziz
parents: 55
diff changeset
1138 if (*++p == '0')
63af7ddf52e1 - Started properly implementing number scanner. Added stub for real numbers.
aziz
parents: 55
diff changeset
1139 {
63af7ddf52e1 - Started properly implementing number scanner. Added stub for real numbers.
aziz
parents: 55
diff changeset
1140 ++digits;
63af7ddf52e1 - Started properly implementing number scanner. Added stub for real numbers.
aziz
parents: 55
diff changeset
1141 ulong_ *= 2;
63af7ddf52e1 - Started properly implementing number scanner. Added stub for real numbers.
aziz
parents: 55
diff changeset
1142 }
63af7ddf52e1 - Started properly implementing number scanner. Added stub for real numbers.
aziz
parents: 55
diff changeset
1143 if (*p == '1')
63af7ddf52e1 - Started properly implementing number scanner. Added stub for real numbers.
aziz
parents: 55
diff changeset
1144 {
63af7ddf52e1 - Started properly implementing number scanner. Added stub for real numbers.
aziz
parents: 55
diff changeset
1145 ++digits;
63af7ddf52e1 - Started properly implementing number scanner. Added stub for real numbers.
aziz
parents: 55
diff changeset
1146 ulong_ *= 2;
63af7ddf52e1 - Started properly implementing number scanner. Added stub for real numbers.
aziz
parents: 55
diff changeset
1147 ulong_ += *p - '0';
63af7ddf52e1 - Started properly implementing number scanner. Added stub for real numbers.
aziz
parents: 55
diff changeset
1148 }
63af7ddf52e1 - Started properly implementing number scanner. Added stub for real numbers.
aziz
parents: 55
diff changeset
1149 if (*p == '_')
63af7ddf52e1 - Started properly implementing number scanner. Added stub for real numbers.
aziz
parents: 55
diff changeset
1150 continue;
63af7ddf52e1 - Started properly implementing number scanner. Added stub for real numbers.
aziz
parents: 55
diff changeset
1151 break;
63af7ddf52e1 - Started properly implementing number scanner. Added stub for real numbers.
aziz
parents: 55
diff changeset
1152 }
63af7ddf52e1 - Started properly implementing number scanner. Added stub for real numbers.
aziz
parents: 55
diff changeset
1153
59
3e594725899a - Issuing error when no digits were found in hex and binary numbers.
aziz
parents: 58
diff changeset
1154 if (digits == 0)
3e594725899a - Issuing error when no digits were found in hex and binary numbers.
aziz
parents: 58
diff changeset
1155 error(MID.NoDigitsInBinNumber);
3e594725899a - Issuing error when no digits were found in hex and binary numbers.
aziz
parents: 58
diff changeset
1156
56
63af7ddf52e1 - Started properly implementing number scanner. Added stub for real numbers.
aziz
parents: 55
diff changeset
1157 if (digits > 64)
63af7ddf52e1 - Started properly implementing number scanner. Added stub for real numbers.
aziz
parents: 55
diff changeset
1158 error(MID.OverflowBinaryNumber);
63af7ddf52e1 - Started properly implementing number scanner. Added stub for real numbers.
aziz
parents: 55
diff changeset
1159 assert((p[-1] == '0' || p[-1] == '1' || p[-1] == '_') && !(*p == '0' || *p == '1' || *p == '_'));
63af7ddf52e1 - Started properly implementing number scanner. Added stub for real numbers.
aziz
parents: 55
diff changeset
1160 goto Lfinalize;
63af7ddf52e1 - Started properly implementing number scanner. Added stub for real numbers.
aziz
parents: 55
diff changeset
1161
63af7ddf52e1 - Started properly implementing number scanner. Added stub for real numbers.
aziz
parents: 55
diff changeset
1162 LscanOct:
323
6259fb93e3dd - Rewrote scanSpecialToken().
aziz
parents: 315
diff changeset
1163 assert(*p == '_' || isoctal(*p));
6259fb93e3dd - Rewrote scanSpecialToken().
aziz
parents: 315
diff changeset
1164 if (*p != '_')
6259fb93e3dd - Rewrote scanSpecialToken().
aziz
parents: 315
diff changeset
1165 goto Lenter_loop_oct;
62
96af5653acef - Fixed loop of hex number scanner. Moved checks under the switch block.
aziz
parents: 61
diff changeset
1166 while (1)
56
63af7ddf52e1 - Started properly implementing number scanner. Added stub for real numbers.
aziz
parents: 55
diff changeset
1167 {
62
96af5653acef - Fixed loop of hex number scanner. Moved checks under the switch block.
aziz
parents: 61
diff changeset
1168 if (*++p == '_')
56
63af7ddf52e1 - Started properly implementing number scanner. Added stub for real numbers.
aziz
parents: 55
diff changeset
1169 continue;
62
96af5653acef - Fixed loop of hex number scanner. Moved checks under the switch block.
aziz
parents: 61
diff changeset
1170 if (!isoctal(*p))
96af5653acef - Fixed loop of hex number scanner. Moved checks under the switch block.
aziz
parents: 61
diff changeset
1171 break;
323
6259fb93e3dd - Rewrote scanSpecialToken().
aziz
parents: 315
diff changeset
1172 Lenter_loop_oct:
56
63af7ddf52e1 - Started properly implementing number scanner. Added stub for real numbers.
aziz
parents: 55
diff changeset
1173 if (ulong_ < ulong.max/2 || (ulong_ == ulong.max/2 && *p <= '1'))
63af7ddf52e1 - Started properly implementing number scanner. Added stub for real numbers.
aziz
parents: 55
diff changeset
1174 {
63af7ddf52e1 - Started properly implementing number scanner. Added stub for real numbers.
aziz
parents: 55
diff changeset
1175 ulong_ *= 8;
63af7ddf52e1 - Started properly implementing number scanner. Added stub for real numbers.
aziz
parents: 55
diff changeset
1176 ulong_ += *p - '0';
63af7ddf52e1 - Started properly implementing number scanner. Added stub for real numbers.
aziz
parents: 55
diff changeset
1177 ++p;
63af7ddf52e1 - Started properly implementing number scanner. Added stub for real numbers.
aziz
parents: 55
diff changeset
1178 continue;
63af7ddf52e1 - Started properly implementing number scanner. Added stub for real numbers.
aziz
parents: 55
diff changeset
1179 }
63af7ddf52e1 - Started properly implementing number scanner. Added stub for real numbers.
aziz
parents: 55
diff changeset
1180 // Overflow: skip following digits.
63af7ddf52e1 - Started properly implementing number scanner. Added stub for real numbers.
aziz
parents: 55
diff changeset
1181 overflow = true;
63
c29229fbf2f7 - Recognizing floats that start with a dot.
aziz
parents: 62
diff changeset
1182 while (isdigit(*++p)) {}
56
63af7ddf52e1 - Started properly implementing number scanner. Added stub for real numbers.
aziz
parents: 55
diff changeset
1183 break;
63af7ddf52e1 - Started properly implementing number scanner. Added stub for real numbers.
aziz
parents: 55
diff changeset
1184 }
63af7ddf52e1 - Started properly implementing number scanner. Added stub for real numbers.
aziz
parents: 55
diff changeset
1185
63
c29229fbf2f7 - Recognizing floats that start with a dot.
aziz
parents: 62
diff changeset
1186 bool hasDecimalDigits;
c29229fbf2f7 - Recognizing floats that start with a dot.
aziz
parents: 62
diff changeset
1187 if (isdigit(*p))
c29229fbf2f7 - Recognizing floats that start with a dot.
aziz
parents: 62
diff changeset
1188 {
c29229fbf2f7 - Recognizing floats that start with a dot.
aziz
parents: 62
diff changeset
1189 hasDecimalDigits = true;
c29229fbf2f7 - Recognizing floats that start with a dot.
aziz
parents: 62
diff changeset
1190 while (isdigit(*++p)) {}
c29229fbf2f7 - Recognizing floats that start with a dot.
aziz
parents: 62
diff changeset
1191 }
c29229fbf2f7 - Recognizing floats that start with a dot.
aziz
parents: 62
diff changeset
1192
c29229fbf2f7 - Recognizing floats that start with a dot.
aziz
parents: 62
diff changeset
1193 // The number could be a float, so check errors below.
56
63af7ddf52e1 - Started properly implementing number scanner. Added stub for real numbers.
aziz
parents: 55
diff changeset
1194 switch (*p)
63af7ddf52e1 - Started properly implementing number scanner. Added stub for real numbers.
aziz
parents: 55
diff changeset
1195 {
63af7ddf52e1 - Started properly implementing number scanner. Added stub for real numbers.
aziz
parents: 55
diff changeset
1196 case '.':
63af7ddf52e1 - Started properly implementing number scanner. Added stub for real numbers.
aziz
parents: 55
diff changeset
1197 if (p[1] != '.')
63af7ddf52e1 - Started properly implementing number scanner. Added stub for real numbers.
aziz
parents: 55
diff changeset
1198 goto LscanReal;
63af7ddf52e1 - Started properly implementing number scanner. Added stub for real numbers.
aziz
parents: 55
diff changeset
1199 break;
63af7ddf52e1 - Started properly implementing number scanner. Added stub for real numbers.
aziz
parents: 55
diff changeset
1200 case 'L':
63af7ddf52e1 - Started properly implementing number scanner. Added stub for real numbers.
aziz
parents: 55
diff changeset
1201 if (p[1] != 'i')
63af7ddf52e1 - Started properly implementing number scanner. Added stub for real numbers.
aziz
parents: 55
diff changeset
1202 break;
63af7ddf52e1 - Started properly implementing number scanner. Added stub for real numbers.
aziz
parents: 55
diff changeset
1203 case 'i', 'f', 'F', 'e', 'E':
63af7ddf52e1 - Started properly implementing number scanner. Added stub for real numbers.
aziz
parents: 55
diff changeset
1204 goto LscanReal;
63
c29229fbf2f7 - Recognizing floats that start with a dot.
aziz
parents: 62
diff changeset
1205 default:
56
63af7ddf52e1 - Started properly implementing number scanner. Added stub for real numbers.
aziz
parents: 55
diff changeset
1206 }
62
96af5653acef - Fixed loop of hex number scanner. Moved checks under the switch block.
aziz
parents: 61
diff changeset
1207
63
c29229fbf2f7 - Recognizing floats that start with a dot.
aziz
parents: 62
diff changeset
1208 if (hasDecimalDigits)
c29229fbf2f7 - Recognizing floats that start with a dot.
aziz
parents: 62
diff changeset
1209 error(MID.OctalNumberHasDecimals);
56
63af7ddf52e1 - Started properly implementing number scanner. Added stub for real numbers.
aziz
parents: 55
diff changeset
1210 if (overflow)
63af7ddf52e1 - Started properly implementing number scanner. Added stub for real numbers.
aziz
parents: 55
diff changeset
1211 error(MID.OverflowOctalNumber);
63af7ddf52e1 - Started properly implementing number scanner. Added stub for real numbers.
aziz
parents: 55
diff changeset
1212 // goto Lfinalize;
63af7ddf52e1 - Started properly implementing number scanner. Added stub for real numbers.
aziz
parents: 55
diff changeset
1213
63af7ddf52e1 - Started properly implementing number scanner. Added stub for real numbers.
aziz
parents: 55
diff changeset
1214 Lfinalize:
58
50bb7fc9db44 - The types of integers are recognized now.
aziz
parents: 57
diff changeset
1215 enum Suffix
50bb7fc9db44 - The types of integers are recognized now.
aziz
parents: 57
diff changeset
1216 {
50bb7fc9db44 - The types of integers are recognized now.
aziz
parents: 57
diff changeset
1217 None = 0,
50bb7fc9db44 - The types of integers are recognized now.
aziz
parents: 57
diff changeset
1218 Unsigned = 1,
60
32cc23bd217b - Fixed number suffix scanning.
aziz
parents: 59
diff changeset
1219 Long = 2
58
50bb7fc9db44 - The types of integers are recognized now.
aziz
parents: 57
diff changeset
1220 }
60
32cc23bd217b - Fixed number suffix scanning.
aziz
parents: 59
diff changeset
1221
58
50bb7fc9db44 - The types of integers are recognized now.
aziz
parents: 57
diff changeset
1222 Suffix suffix;
56
63af7ddf52e1 - Started properly implementing number scanner. Added stub for real numbers.
aziz
parents: 55
diff changeset
1223 while (1)
63af7ddf52e1 - Started properly implementing number scanner. Added stub for real numbers.
aziz
parents: 55
diff changeset
1224 {
63af7ddf52e1 - Started properly implementing number scanner. Added stub for real numbers.
aziz
parents: 55
diff changeset
1225 switch (*p)
63af7ddf52e1 - Started properly implementing number scanner. Added stub for real numbers.
aziz
parents: 55
diff changeset
1226 {
63af7ddf52e1 - Started properly implementing number scanner. Added stub for real numbers.
aziz
parents: 55
diff changeset
1227 case 'L':
58
50bb7fc9db44 - The types of integers are recognized now.
aziz
parents: 57
diff changeset
1228 if (suffix & Suffix.Long)
56
63af7ddf52e1 - Started properly implementing number scanner. Added stub for real numbers.
aziz
parents: 55
diff changeset
1229 break;
60
32cc23bd217b - Fixed number suffix scanning.
aziz
parents: 59
diff changeset
1230 suffix |= Suffix.Long;
32cc23bd217b - Fixed number suffix scanning.
aziz
parents: 59
diff changeset
1231 ++p;
56
63af7ddf52e1 - Started properly implementing number scanner. Added stub for real numbers.
aziz
parents: 55
diff changeset
1232 continue;
63af7ddf52e1 - Started properly implementing number scanner. Added stub for real numbers.
aziz
parents: 55
diff changeset
1233 case 'u', 'U':
58
50bb7fc9db44 - The types of integers are recognized now.
aziz
parents: 57
diff changeset
1234 if (suffix & Suffix.Unsigned)
56
63af7ddf52e1 - Started properly implementing number scanner. Added stub for real numbers.
aziz
parents: 55
diff changeset
1235 break;
60
32cc23bd217b - Fixed number suffix scanning.
aziz
parents: 59
diff changeset
1236 suffix |= Suffix.Unsigned;
32cc23bd217b - Fixed number suffix scanning.
aziz
parents: 59
diff changeset
1237 ++p;
32cc23bd217b - Fixed number suffix scanning.
aziz
parents: 59
diff changeset
1238 continue;
58
50bb7fc9db44 - The types of integers are recognized now.
aziz
parents: 57
diff changeset
1239 default:
50bb7fc9db44 - The types of integers are recognized now.
aziz
parents: 57
diff changeset
1240 break;
56
63af7ddf52e1 - Started properly implementing number scanner. Added stub for real numbers.
aziz
parents: 55
diff changeset
1241 }
63af7ddf52e1 - Started properly implementing number scanner. Added stub for real numbers.
aziz
parents: 55
diff changeset
1242 break;
63af7ddf52e1 - Started properly implementing number scanner. Added stub for real numbers.
aziz
parents: 55
diff changeset
1243 }
58
50bb7fc9db44 - The types of integers are recognized now.
aziz
parents: 57
diff changeset
1244
50bb7fc9db44 - The types of integers are recognized now.
aziz
parents: 57
diff changeset
1245 switch (suffix)
50bb7fc9db44 - The types of integers are recognized now.
aziz
parents: 57
diff changeset
1246 {
50bb7fc9db44 - The types of integers are recognized now.
aziz
parents: 57
diff changeset
1247 case Suffix.None:
50bb7fc9db44 - The types of integers are recognized now.
aziz
parents: 57
diff changeset
1248 if (ulong_ & 0x8000000000000000)
50bb7fc9db44 - The types of integers are recognized now.
aziz
parents: 57
diff changeset
1249 {
50bb7fc9db44 - The types of integers are recognized now.
aziz
parents: 57
diff changeset
1250 if (isDecimal)
50bb7fc9db44 - The types of integers are recognized now.
aziz
parents: 57
diff changeset
1251 error(MID.OverflowDecimalSign);
50bb7fc9db44 - The types of integers are recognized now.
aziz
parents: 57
diff changeset
1252 t.type = TOK.Uint64;
50bb7fc9db44 - The types of integers are recognized now.
aziz
parents: 57
diff changeset
1253 }
50bb7fc9db44 - The types of integers are recognized now.
aziz
parents: 57
diff changeset
1254 else if (ulong_ & 0xFFFFFFFF00000000)
50bb7fc9db44 - The types of integers are recognized now.
aziz
parents: 57
diff changeset
1255 t.type = TOK.Int64;
50bb7fc9db44 - The types of integers are recognized now.
aziz
parents: 57
diff changeset
1256 else if (ulong_ & 0x80000000)
50bb7fc9db44 - The types of integers are recognized now.
aziz
parents: 57
diff changeset
1257 t.type = isDecimal ? TOK.Int64 : TOK.Uint32;
50bb7fc9db44 - The types of integers are recognized now.
aziz
parents: 57
diff changeset
1258 else
50bb7fc9db44 - The types of integers are recognized now.
aziz
parents: 57
diff changeset
1259 t.type = TOK.Int32;
50bb7fc9db44 - The types of integers are recognized now.
aziz
parents: 57
diff changeset
1260 break;
50bb7fc9db44 - The types of integers are recognized now.
aziz
parents: 57
diff changeset
1261 case Suffix.Unsigned:
50bb7fc9db44 - The types of integers are recognized now.
aziz
parents: 57
diff changeset
1262 if (ulong_ & 0xFFFFFFFF00000000)
50bb7fc9db44 - The types of integers are recognized now.
aziz
parents: 57
diff changeset
1263 t.type = TOK.Uint64;
50bb7fc9db44 - The types of integers are recognized now.
aziz
parents: 57
diff changeset
1264 else
50bb7fc9db44 - The types of integers are recognized now.
aziz
parents: 57
diff changeset
1265 t.type = TOK.Uint32;
50bb7fc9db44 - The types of integers are recognized now.
aziz
parents: 57
diff changeset
1266 break;
50bb7fc9db44 - The types of integers are recognized now.
aziz
parents: 57
diff changeset
1267 case Suffix.Long:
50bb7fc9db44 - The types of integers are recognized now.
aziz
parents: 57
diff changeset
1268 if (ulong_ & 0x8000000000000000)
50bb7fc9db44 - The types of integers are recognized now.
aziz
parents: 57
diff changeset
1269 {
50bb7fc9db44 - The types of integers are recognized now.
aziz
parents: 57
diff changeset
1270 if (isDecimal)
50bb7fc9db44 - The types of integers are recognized now.
aziz
parents: 57
diff changeset
1271 error(MID.OverflowDecimalSign);
50bb7fc9db44 - The types of integers are recognized now.
aziz
parents: 57
diff changeset
1272 t.type = TOK.Uint64;
50bb7fc9db44 - The types of integers are recognized now.
aziz
parents: 57
diff changeset
1273 }
50bb7fc9db44 - The types of integers are recognized now.
aziz
parents: 57
diff changeset
1274 else
50bb7fc9db44 - The types of integers are recognized now.
aziz
parents: 57
diff changeset
1275 t.type = TOK.Int64;
50bb7fc9db44 - The types of integers are recognized now.
aziz
parents: 57
diff changeset
1276 break;
50bb7fc9db44 - The types of integers are recognized now.
aziz
parents: 57
diff changeset
1277 case Suffix.Unsigned | Suffix.Long:
50bb7fc9db44 - The types of integers are recognized now.
aziz
parents: 57
diff changeset
1278 t.type = TOK.Uint64;
50bb7fc9db44 - The types of integers are recognized now.
aziz
parents: 57
diff changeset
1279 break;
50bb7fc9db44 - The types of integers are recognized now.
aziz
parents: 57
diff changeset
1280 default:
50bb7fc9db44 - The types of integers are recognized now.
aziz
parents: 57
diff changeset
1281 assert(0);
50bb7fc9db44 - The types of integers are recognized now.
aziz
parents: 57
diff changeset
1282 }
56
63af7ddf52e1 - Started properly implementing number scanner. Added stub for real numbers.
aziz
parents: 55
diff changeset
1283 t.ulong_ = ulong_;
15
c70c028e47dd - Started implementation of lexing numbers.
aziz
parents: 14
diff changeset
1284 t.end = p;
56
63af7ddf52e1 - Started properly implementing number scanner. Added stub for real numbers.
aziz
parents: 55
diff changeset
1285 return;
63af7ddf52e1 - Started properly implementing number scanner. Added stub for real numbers.
aziz
parents: 55
diff changeset
1286 LscanReal:
63af7ddf52e1 - Started properly implementing number scanner. Added stub for real numbers.
aziz
parents: 55
diff changeset
1287 scanReal(t);
63af7ddf52e1 - Started properly implementing number scanner. Added stub for real numbers.
aziz
parents: 55
diff changeset
1288 return;
63af7ddf52e1 - Started properly implementing number scanner. Added stub for real numbers.
aziz
parents: 55
diff changeset
1289 }
63af7ddf52e1 - Started properly implementing number scanner. Added stub for real numbers.
aziz
parents: 55
diff changeset
1290
63
c29229fbf2f7 - Recognizing floats that start with a dot.
aziz
parents: 62
diff changeset
1291 /*
c29229fbf2f7 - Recognizing floats that start with a dot.
aziz
parents: 62
diff changeset
1292 FloatLiteral:= Float[fFL]?i?
c29229fbf2f7 - Recognizing floats that start with a dot.
aziz
parents: 62
diff changeset
1293 Float:= DecFloat | HexFloat
67
996065105910 - Fix: variadic arguments are local to the variadic function. Parameters are converted to an array of strings first and then passed to the constructor of class Problem.
aziz
parents: 66
diff changeset
1294 DecFloat:= ([0-9][0-9_]*[.][0-9_]*DecExponent?) | [.][0-9][0-9_]*DecExponent? | [0-9][0-9_]*DecExponent
63
c29229fbf2f7 - Recognizing floats that start with a dot.
aziz
parents: 62
diff changeset
1295 DecExponent:= [eE][+-]?[0-9][0-9_]*
c29229fbf2f7 - Recognizing floats that start with a dot.
aziz
parents: 62
diff changeset
1296 HexFloat:= 0[xX](HexDigits[.]HexDigits | [.][0-9a-zA-Z]HexDigits? | HexDigits)HexExponent
c29229fbf2f7 - Recognizing floats that start with a dot.
aziz
parents: 62
diff changeset
1297 HexExponent:= [pP][+-]?[0-9][0-9_]*
c29229fbf2f7 - Recognizing floats that start with a dot.
aziz
parents: 62
diff changeset
1298 */
56
63af7ddf52e1 - Started properly implementing number scanner. Added stub for real numbers.
aziz
parents: 55
diff changeset
1299 void scanReal(ref Token t)
63af7ddf52e1 - Started properly implementing number scanner. Added stub for real numbers.
aziz
parents: 55
diff changeset
1300 {
63
c29229fbf2f7 - Recognizing floats that start with a dot.
aziz
parents: 62
diff changeset
1301 if (*p == '.')
c29229fbf2f7 - Recognizing floats that start with a dot.
aziz
parents: 62
diff changeset
1302 // This function was called by scan() or scanNumber().
c29229fbf2f7 - Recognizing floats that start with a dot.
aziz
parents: 62
diff changeset
1303 while (isdigit(*++p) || *p == '_') {}
c29229fbf2f7 - Recognizing floats that start with a dot.
aziz
parents: 62
diff changeset
1304 else
c29229fbf2f7 - Recognizing floats that start with a dot.
aziz
parents: 62
diff changeset
1305 {
c29229fbf2f7 - Recognizing floats that start with a dot.
aziz
parents: 62
diff changeset
1306 // This function was called by scanNumber().
c29229fbf2f7 - Recognizing floats that start with a dot.
aziz
parents: 62
diff changeset
1307 debug switch (*p)
c29229fbf2f7 - Recognizing floats that start with a dot.
aziz
parents: 62
diff changeset
1308 {
c29229fbf2f7 - Recognizing floats that start with a dot.
aziz
parents: 62
diff changeset
1309 case 'L':
c29229fbf2f7 - Recognizing floats that start with a dot.
aziz
parents: 62
diff changeset
1310 if (p[1] != 'i')
c29229fbf2f7 - Recognizing floats that start with a dot.
aziz
parents: 62
diff changeset
1311 assert(0);
c29229fbf2f7 - Recognizing floats that start with a dot.
aziz
parents: 62
diff changeset
1312 case 'i', 'f', 'F', 'e', 'E': break;
c29229fbf2f7 - Recognizing floats that start with a dot.
aziz
parents: 62
diff changeset
1313 default: assert(0);
c29229fbf2f7 - Recognizing floats that start with a dot.
aziz
parents: 62
diff changeset
1314 }
c29229fbf2f7 - Recognizing floats that start with a dot.
aziz
parents: 62
diff changeset
1315 }
c29229fbf2f7 - Recognizing floats that start with a dot.
aziz
parents: 62
diff changeset
1316
c29229fbf2f7 - Recognizing floats that start with a dot.
aziz
parents: 62
diff changeset
1317 // Scan exponent.
c29229fbf2f7 - Recognizing floats that start with a dot.
aziz
parents: 62
diff changeset
1318 if (*p == 'e' || *p == 'E')
c29229fbf2f7 - Recognizing floats that start with a dot.
aziz
parents: 62
diff changeset
1319 {
c29229fbf2f7 - Recognizing floats that start with a dot.
aziz
parents: 62
diff changeset
1320 ++p;
c29229fbf2f7 - Recognizing floats that start with a dot.
aziz
parents: 62
diff changeset
1321 if (*p == '-' || *p == '+')
c29229fbf2f7 - Recognizing floats that start with a dot.
aziz
parents: 62
diff changeset
1322 ++p;
c29229fbf2f7 - Recognizing floats that start with a dot.
aziz
parents: 62
diff changeset
1323 if (!isdigit(*p))
c29229fbf2f7 - Recognizing floats that start with a dot.
aziz
parents: 62
diff changeset
1324 error(MID.FloatExponentDigitExpected);
c29229fbf2f7 - Recognizing floats that start with a dot.
aziz
parents: 62
diff changeset
1325 else
64
dd4c5a0e47dd - Improved while loop.
aziz
parents: 63
diff changeset
1326 while (isdigit(*++p) || *p == '_') {}
63
c29229fbf2f7 - Recognizing floats that start with a dot.
aziz
parents: 62
diff changeset
1327 }
c29229fbf2f7 - Recognizing floats that start with a dot.
aziz
parents: 62
diff changeset
1328
c29229fbf2f7 - Recognizing floats that start with a dot.
aziz
parents: 62
diff changeset
1329 // Copy string to buffer ignoring underscores.
c29229fbf2f7 - Recognizing floats that start with a dot.
aziz
parents: 62
diff changeset
1330 char[] buffer;
c29229fbf2f7 - Recognizing floats that start with a dot.
aziz
parents: 62
diff changeset
1331 char* end = p;
c29229fbf2f7 - Recognizing floats that start with a dot.
aziz
parents: 62
diff changeset
1332 p = t.start;
c29229fbf2f7 - Recognizing floats that start with a dot.
aziz
parents: 62
diff changeset
1333 do
c29229fbf2f7 - Recognizing floats that start with a dot.
aziz
parents: 62
diff changeset
1334 {
c29229fbf2f7 - Recognizing floats that start with a dot.
aziz
parents: 62
diff changeset
1335 if (*p == '_')
c29229fbf2f7 - Recognizing floats that start with a dot.
aziz
parents: 62
diff changeset
1336 {
c29229fbf2f7 - Recognizing floats that start with a dot.
aziz
parents: 62
diff changeset
1337 ++p;
c29229fbf2f7 - Recognizing floats that start with a dot.
aziz
parents: 62
diff changeset
1338 continue;
c29229fbf2f7 - Recognizing floats that start with a dot.
aziz
parents: 62
diff changeset
1339 }
c29229fbf2f7 - Recognizing floats that start with a dot.
aziz
parents: 62
diff changeset
1340 buffer ~= *p;
c29229fbf2f7 - Recognizing floats that start with a dot.
aziz
parents: 62
diff changeset
1341 ++p;
c29229fbf2f7 - Recognizing floats that start with a dot.
aziz
parents: 62
diff changeset
1342 } while (p != end)
c29229fbf2f7 - Recognizing floats that start with a dot.
aziz
parents: 62
diff changeset
1343 buffer ~= 0;
c29229fbf2f7 - Recognizing floats that start with a dot.
aziz
parents: 62
diff changeset
1344 finalizeFloat(t, buffer);
30
426767b94635 - Added code for parsing the '#line' special token.
aziz
parents: 29
diff changeset
1345 }
426767b94635 - Added code for parsing the '#line' special token.
aziz
parents: 29
diff changeset
1346
62
96af5653acef - Fixed loop of hex number scanner. Moved checks under the switch block.
aziz
parents: 61
diff changeset
1347 void scanHexReal(ref Token t)
96af5653acef - Fixed loop of hex number scanner. Moved checks under the switch block.
aziz
parents: 61
diff changeset
1348 {
96af5653acef - Fixed loop of hex number scanner. Moved checks under the switch block.
aziz
parents: 61
diff changeset
1349 assert(*p == '.' || *p == 'i' || *p == 'p' || *p == 'P' || (*p == 'L' && p[1] == 'i'));
96af5653acef - Fixed loop of hex number scanner. Moved checks under the switch block.
aziz
parents: 61
diff changeset
1350 MID mid;
96af5653acef - Fixed loop of hex number scanner. Moved checks under the switch block.
aziz
parents: 61
diff changeset
1351 if (*p == '.')
96af5653acef - Fixed loop of hex number scanner. Moved checks under the switch block.
aziz
parents: 61
diff changeset
1352 while (ishexad(*++p) || *p == '_') {}
96af5653acef - Fixed loop of hex number scanner. Moved checks under the switch block.
aziz
parents: 61
diff changeset
1353 if (*p != 'p' && *p != 'P')
96af5653acef - Fixed loop of hex number scanner. Moved checks under the switch block.
aziz
parents: 61
diff changeset
1354 {
96af5653acef - Fixed loop of hex number scanner. Moved checks under the switch block.
aziz
parents: 61
diff changeset
1355 mid = MID.HexFloatExponentRequired;
96af5653acef - Fixed loop of hex number scanner. Moved checks under the switch block.
aziz
parents: 61
diff changeset
1356 goto Lerr;
96af5653acef - Fixed loop of hex number scanner. Moved checks under the switch block.
aziz
parents: 61
diff changeset
1357 }
96af5653acef - Fixed loop of hex number scanner. Moved checks under the switch block.
aziz
parents: 61
diff changeset
1358 // Copy mantissa to a buffer ignoring underscores.
96af5653acef - Fixed loop of hex number scanner. Moved checks under the switch block.
aziz
parents: 61
diff changeset
1359 char* end = p;
96af5653acef - Fixed loop of hex number scanner. Moved checks under the switch block.
aziz
parents: 61
diff changeset
1360 p = t.start;
96af5653acef - Fixed loop of hex number scanner. Moved checks under the switch block.
aziz
parents: 61
diff changeset
1361 char[] buffer;
96af5653acef - Fixed loop of hex number scanner. Moved checks under the switch block.
aziz
parents: 61
diff changeset
1362 do
96af5653acef - Fixed loop of hex number scanner. Moved checks under the switch block.
aziz
parents: 61
diff changeset
1363 {
96af5653acef - Fixed loop of hex number scanner. Moved checks under the switch block.
aziz
parents: 61
diff changeset
1364 if (*p == '_')
63
c29229fbf2f7 - Recognizing floats that start with a dot.
aziz
parents: 62
diff changeset
1365 {
c29229fbf2f7 - Recognizing floats that start with a dot.
aziz
parents: 62
diff changeset
1366 ++p;
62
96af5653acef - Fixed loop of hex number scanner. Moved checks under the switch block.
aziz
parents: 61
diff changeset
1367 continue;
63
c29229fbf2f7 - Recognizing floats that start with a dot.
aziz
parents: 62
diff changeset
1368 }
c29229fbf2f7 - Recognizing floats that start with a dot.
aziz
parents: 62
diff changeset
1369 buffer ~= *p;
62
96af5653acef - Fixed loop of hex number scanner. Moved checks under the switch block.
aziz
parents: 61
diff changeset
1370 ++p;
96af5653acef - Fixed loop of hex number scanner. Moved checks under the switch block.
aziz
parents: 61
diff changeset
1371 } while (p != end)
96af5653acef - Fixed loop of hex number scanner. Moved checks under the switch block.
aziz
parents: 61
diff changeset
1372
96af5653acef - Fixed loop of hex number scanner. Moved checks under the switch block.
aziz
parents: 61
diff changeset
1373 assert(p == end && (*p == 'p' || *p == 'P'));
96af5653acef - Fixed loop of hex number scanner. Moved checks under the switch block.
aziz
parents: 61
diff changeset
1374 // Scan and copy the exponent.
96af5653acef - Fixed loop of hex number scanner. Moved checks under the switch block.
aziz
parents: 61
diff changeset
1375 buffer ~= 'p';
96af5653acef - Fixed loop of hex number scanner. Moved checks under the switch block.
aziz
parents: 61
diff changeset
1376 size_t bufflen = buffer.length;
96af5653acef - Fixed loop of hex number scanner. Moved checks under the switch block.
aziz
parents: 61
diff changeset
1377 while (1)
96af5653acef - Fixed loop of hex number scanner. Moved checks under the switch block.
aziz
parents: 61
diff changeset
1378 {
96af5653acef - Fixed loop of hex number scanner. Moved checks under the switch block.
aziz
parents: 61
diff changeset
1379 if (*++p == '_')
96af5653acef - Fixed loop of hex number scanner. Moved checks under the switch block.
aziz
parents: 61
diff changeset
1380 continue;
96af5653acef - Fixed loop of hex number scanner. Moved checks under the switch block.
aziz
parents: 61
diff changeset
1381 if (isdigit(*p))
96af5653acef - Fixed loop of hex number scanner. Moved checks under the switch block.
aziz
parents: 61
diff changeset
1382 buffer ~= *p;
96af5653acef - Fixed loop of hex number scanner. Moved checks under the switch block.
aziz
parents: 61
diff changeset
1383 else
96af5653acef - Fixed loop of hex number scanner. Moved checks under the switch block.
aziz
parents: 61
diff changeset
1384 break;
96af5653acef - Fixed loop of hex number scanner. Moved checks under the switch block.
aziz
parents: 61
diff changeset
1385 }
96af5653acef - Fixed loop of hex number scanner. Moved checks under the switch block.
aziz
parents: 61
diff changeset
1386 // When the buffer length hasn't changed, no digits were copied.
96af5653acef - Fixed loop of hex number scanner. Moved checks under the switch block.
aziz
parents: 61
diff changeset
1387 if (bufflen == buffer.length) {
96af5653acef - Fixed loop of hex number scanner. Moved checks under the switch block.
aziz
parents: 61
diff changeset
1388 mid = MID.HexFloatMissingExpDigits;
96af5653acef - Fixed loop of hex number scanner. Moved checks under the switch block.
aziz
parents: 61
diff changeset
1389 goto Lerr;
96af5653acef - Fixed loop of hex number scanner. Moved checks under the switch block.
aziz
parents: 61
diff changeset
1390 }
96af5653acef - Fixed loop of hex number scanner. Moved checks under the switch block.
aziz
parents: 61
diff changeset
1391 buffer ~= 0; // Terminate for C functions.
63
c29229fbf2f7 - Recognizing floats that start with a dot.
aziz
parents: 62
diff changeset
1392 finalizeFloat(t, buffer);
c29229fbf2f7 - Recognizing floats that start with a dot.
aziz
parents: 62
diff changeset
1393 return;
c29229fbf2f7 - Recognizing floats that start with a dot.
aziz
parents: 62
diff changeset
1394 Lerr:
c29229fbf2f7 - Recognizing floats that start with a dot.
aziz
parents: 62
diff changeset
1395 t.type = TOK.Float32;
c29229fbf2f7 - Recognizing floats that start with a dot.
aziz
parents: 62
diff changeset
1396 t.end = p;
c29229fbf2f7 - Recognizing floats that start with a dot.
aziz
parents: 62
diff changeset
1397 error(mid);
c29229fbf2f7 - Recognizing floats that start with a dot.
aziz
parents: 62
diff changeset
1398 }
c29229fbf2f7 - Recognizing floats that start with a dot.
aziz
parents: 62
diff changeset
1399
c29229fbf2f7 - Recognizing floats that start with a dot.
aziz
parents: 62
diff changeset
1400 void finalizeFloat(ref Token t, string buffer)
c29229fbf2f7 - Recognizing floats that start with a dot.
aziz
parents: 62
diff changeset
1401 {
62
96af5653acef - Fixed loop of hex number scanner. Moved checks under the switch block.
aziz
parents: 61
diff changeset
1402 // Float number is well-formed. Check suffixes and do conversion.
96af5653acef - Fixed loop of hex number scanner. Moved checks under the switch block.
aziz
parents: 61
diff changeset
1403 switch (*p)
96af5653acef - Fixed loop of hex number scanner. Moved checks under the switch block.
aziz
parents: 61
diff changeset
1404 {
96af5653acef - Fixed loop of hex number scanner. Moved checks under the switch block.
aziz
parents: 61
diff changeset
1405 case 'f', 'F':
96af5653acef - Fixed loop of hex number scanner. Moved checks under the switch block.
aziz
parents: 61
diff changeset
1406 t.type = TOK.Float32;
96af5653acef - Fixed loop of hex number scanner. Moved checks under the switch block.
aziz
parents: 61
diff changeset
1407 t.float_ = strtof(buffer.ptr, null);
96af5653acef - Fixed loop of hex number scanner. Moved checks under the switch block.
aziz
parents: 61
diff changeset
1408 ++p;
96af5653acef - Fixed loop of hex number scanner. Moved checks under the switch block.
aziz
parents: 61
diff changeset
1409 break;
96af5653acef - Fixed loop of hex number scanner. Moved checks under the switch block.
aziz
parents: 61
diff changeset
1410 case 'L':
96af5653acef - Fixed loop of hex number scanner. Moved checks under the switch block.
aziz
parents: 61
diff changeset
1411 t.type = TOK.Float80;
96af5653acef - Fixed loop of hex number scanner. Moved checks under the switch block.
aziz
parents: 61
diff changeset
1412 t.real_ = strtold(buffer.ptr, null);
96af5653acef - Fixed loop of hex number scanner. Moved checks under the switch block.
aziz
parents: 61
diff changeset
1413 ++p;
96af5653acef - Fixed loop of hex number scanner. Moved checks under the switch block.
aziz
parents: 61
diff changeset
1414 break;
96af5653acef - Fixed loop of hex number scanner. Moved checks under the switch block.
aziz
parents: 61
diff changeset
1415 default:
96af5653acef - Fixed loop of hex number scanner. Moved checks under the switch block.
aziz
parents: 61
diff changeset
1416 t.type = TOK.Float64;
96af5653acef - Fixed loop of hex number scanner. Moved checks under the switch block.
aziz
parents: 61
diff changeset
1417 t.double_ = strtod(buffer.ptr, null);
96af5653acef - Fixed loop of hex number scanner. Moved checks under the switch block.
aziz
parents: 61
diff changeset
1418 break;
96af5653acef - Fixed loop of hex number scanner. Moved checks under the switch block.
aziz
parents: 61
diff changeset
1419 }
96af5653acef - Fixed loop of hex number scanner. Moved checks under the switch block.
aziz
parents: 61
diff changeset
1420 if (*p == 'i')
96af5653acef - Fixed loop of hex number scanner. Moved checks under the switch block.
aziz
parents: 61
diff changeset
1421 {
96af5653acef - Fixed loop of hex number scanner. Moved checks under the switch block.
aziz
parents: 61
diff changeset
1422 ++p;
63
c29229fbf2f7 - Recognizing floats that start with a dot.
aziz
parents: 62
diff changeset
1423 t.type += 3; // Switch to imaginary counterpart.
62
96af5653acef - Fixed loop of hex number scanner. Moved checks under the switch block.
aziz
parents: 61
diff changeset
1424 }
96af5653acef - Fixed loop of hex number scanner. Moved checks under the switch block.
aziz
parents: 61
diff changeset
1425 if (getErrno == ERANGE)
63
c29229fbf2f7 - Recognizing floats that start with a dot.
aziz
parents: 62
diff changeset
1426 error(MID.OverflowFloatNumber);
62
96af5653acef - Fixed loop of hex number scanner. Moved checks under the switch block.
aziz
parents: 61
diff changeset
1427 t.end = p;
96af5653acef - Fixed loop of hex number scanner. Moved checks under the switch block.
aziz
parents: 61
diff changeset
1428 }
96af5653acef - Fixed loop of hex number scanner. Moved checks under the switch block.
aziz
parents: 61
diff changeset
1429
30
426767b94635 - Added code for parsing the '#line' special token.
aziz
parents: 29
diff changeset
1430 /// Scan special token: #line Integer [Filespec] EndOfLine
323
6259fb93e3dd - Rewrote scanSpecialToken().
aziz
parents: 315
diff changeset
1431 void scanSpecialToken(ref Token t)
30
426767b94635 - Added code for parsing the '#line' special token.
aziz
parents: 29
diff changeset
1432 {
47
8aa37a78937b - Properly implemented scanner for normal string literals.
aziz
parents: 46
diff changeset
1433 assert(*p == '#');
51
cadd2bfe686c - Displaying error messages in XML.
aziz
parents: 50
diff changeset
1434
323
6259fb93e3dd - Rewrote scanSpecialToken().
aziz
parents: 315
diff changeset
1435 t.type = TOK.HashLine;
6259fb93e3dd - Rewrote scanSpecialToken().
aziz
parents: 315
diff changeset
1436
30
426767b94635 - Added code for parsing the '#line' special token.
aziz
parents: 29
diff changeset
1437 MID mid;
426767b94635 - Added code for parsing the '#line' special token.
aziz
parents: 29
diff changeset
1438
323
6259fb93e3dd - Rewrote scanSpecialToken().
aziz
parents: 315
diff changeset
1439 ++p;
6259fb93e3dd - Rewrote scanSpecialToken().
aziz
parents: 315
diff changeset
1440 if (p[0] != 'l' || p[1] != 'i' || p[2] != 'n' || p[3] != 'e')
51
cadd2bfe686c - Displaying error messages in XML.
aziz
parents: 50
diff changeset
1441 {
323
6259fb93e3dd - Rewrote scanSpecialToken().
aziz
parents: 315
diff changeset
1442 mid = MID.ExpectedNumberAfterSTLine;
51
cadd2bfe686c - Displaying error messages in XML.
aziz
parents: 50
diff changeset
1443 goto Lerr;
cadd2bfe686c - Displaying error messages in XML.
aziz
parents: 50
diff changeset
1444 }
323
6259fb93e3dd - Rewrote scanSpecialToken().
aziz
parents: 315
diff changeset
1445 p += 3;
6259fb93e3dd - Rewrote scanSpecialToken().
aziz
parents: 315
diff changeset
1446
6259fb93e3dd - Rewrote scanSpecialToken().
aziz
parents: 315
diff changeset
1447 enum State
6259fb93e3dd - Rewrote scanSpecialToken().
aziz
parents: 315
diff changeset
1448 { Number, Filespec, End }
51
cadd2bfe686c - Displaying error messages in XML.
aziz
parents: 50
diff changeset
1449
323
6259fb93e3dd - Rewrote scanSpecialToken().
aziz
parents: 315
diff changeset
1450 State state;
6259fb93e3dd - Rewrote scanSpecialToken().
aziz
parents: 315
diff changeset
1451
6259fb93e3dd - Rewrote scanSpecialToken().
aziz
parents: 315
diff changeset
1452 Loop:
6259fb93e3dd - Rewrote scanSpecialToken().
aziz
parents: 315
diff changeset
1453 while (1)
51
cadd2bfe686c - Displaying error messages in XML.
aziz
parents: 50
diff changeset
1454 {
323
6259fb93e3dd - Rewrote scanSpecialToken().
aziz
parents: 315
diff changeset
1455 switch (*++p)
6259fb93e3dd - Rewrote scanSpecialToken().
aziz
parents: 315
diff changeset
1456 {
6259fb93e3dd - Rewrote scanSpecialToken().
aziz
parents: 315
diff changeset
1457 case '\r':
6259fb93e3dd - Rewrote scanSpecialToken().
aziz
parents: 315
diff changeset
1458 if (p[1] == '\n')
6259fb93e3dd - Rewrote scanSpecialToken().
aziz
parents: 315
diff changeset
1459 ++p;
6259fb93e3dd - Rewrote scanSpecialToken().
aziz
parents: 315
diff changeset
1460 case '\n', 0, _Z_:
6259fb93e3dd - Rewrote scanSpecialToken().
aziz
parents: 315
diff changeset
1461 break Loop;
6259fb93e3dd - Rewrote scanSpecialToken().
aziz
parents: 315
diff changeset
1462 case LS[0]:
6259fb93e3dd - Rewrote scanSpecialToken().
aziz
parents: 315
diff changeset
1463 if (p[1] == LS[1] && (p[2] == LS[2] || p[2] == PS[2]))
6259fb93e3dd - Rewrote scanSpecialToken().
aziz
parents: 315
diff changeset
1464 {
6259fb93e3dd - Rewrote scanSpecialToken().
aziz
parents: 315
diff changeset
1465 ++p; ++p;
6259fb93e3dd - Rewrote scanSpecialToken().
aziz
parents: 315
diff changeset
1466 break Loop;
6259fb93e3dd - Rewrote scanSpecialToken().
aziz
parents: 315
diff changeset
1467 }
6259fb93e3dd - Rewrote scanSpecialToken().
aziz
parents: 315
diff changeset
1468 goto default;
6259fb93e3dd - Rewrote scanSpecialToken().
aziz
parents: 315
diff changeset
1469 default:
6259fb93e3dd - Rewrote scanSpecialToken().
aziz
parents: 315
diff changeset
1470 if (isspace(*p))
6259fb93e3dd - Rewrote scanSpecialToken().
aziz
parents: 315
diff changeset
1471 continue;
6259fb93e3dd - Rewrote scanSpecialToken().
aziz
parents: 315
diff changeset
1472 if (state == State.Number)
6259fb93e3dd - Rewrote scanSpecialToken().
aziz
parents: 315
diff changeset
1473 {
6259fb93e3dd - Rewrote scanSpecialToken().
aziz
parents: 315
diff changeset
1474 if (!isdigit(*p))
6259fb93e3dd - Rewrote scanSpecialToken().
aziz
parents: 315
diff changeset
1475 {
6259fb93e3dd - Rewrote scanSpecialToken().
aziz
parents: 315
diff changeset
1476 mid = MID.ExpectedNumberAfterSTLine;
6259fb93e3dd - Rewrote scanSpecialToken().
aziz
parents: 315
diff changeset
1477 goto Lerr;
6259fb93e3dd - Rewrote scanSpecialToken().
aziz
parents: 315
diff changeset
1478 }
6259fb93e3dd - Rewrote scanSpecialToken().
aziz
parents: 315
diff changeset
1479 t.line_num = new Token;
6259fb93e3dd - Rewrote scanSpecialToken().
aziz
parents: 315
diff changeset
1480 scan(*t.line_num);
6259fb93e3dd - Rewrote scanSpecialToken().
aziz
parents: 315
diff changeset
1481 --p;
6259fb93e3dd - Rewrote scanSpecialToken().
aziz
parents: 315
diff changeset
1482 state = State.Filespec;
6259fb93e3dd - Rewrote scanSpecialToken().
aziz
parents: 315
diff changeset
1483 }
6259fb93e3dd - Rewrote scanSpecialToken().
aziz
parents: 315
diff changeset
1484 else if (state == State.Filespec)
6259fb93e3dd - Rewrote scanSpecialToken().
aziz
parents: 315
diff changeset
1485 {
6259fb93e3dd - Rewrote scanSpecialToken().
aziz
parents: 315
diff changeset
1486 if (*p != '"')
6259fb93e3dd - Rewrote scanSpecialToken().
aziz
parents: 315
diff changeset
1487 {
6259fb93e3dd - Rewrote scanSpecialToken().
aziz
parents: 315
diff changeset
1488 mid = MID.ExpectedFilespec;
6259fb93e3dd - Rewrote scanSpecialToken().
aziz
parents: 315
diff changeset
1489 goto Lerr;
6259fb93e3dd - Rewrote scanSpecialToken().
aziz
parents: 315
diff changeset
1490 }
6259fb93e3dd - Rewrote scanSpecialToken().
aziz
parents: 315
diff changeset
1491 t.line_filespec = new Token;
6259fb93e3dd - Rewrote scanSpecialToken().
aziz
parents: 315
diff changeset
1492 t.line_filespec.start = p;
6259fb93e3dd - Rewrote scanSpecialToken().
aziz
parents: 315
diff changeset
1493 t.line_filespec.type = TOK.Filespec;
6259fb93e3dd - Rewrote scanSpecialToken().
aziz
parents: 315
diff changeset
1494 while (1)
6259fb93e3dd - Rewrote scanSpecialToken().
aziz
parents: 315
diff changeset
1495 {
6259fb93e3dd - Rewrote scanSpecialToken().
aziz
parents: 315
diff changeset
1496 switch (*++p)
6259fb93e3dd - Rewrote scanSpecialToken().
aziz
parents: 315
diff changeset
1497 {
6259fb93e3dd - Rewrote scanSpecialToken().
aziz
parents: 315
diff changeset
1498 case '"':
6259fb93e3dd - Rewrote scanSpecialToken().
aziz
parents: 315
diff changeset
1499 break;
6259fb93e3dd - Rewrote scanSpecialToken().
aziz
parents: 315
diff changeset
1500 case LS[0]:
6259fb93e3dd - Rewrote scanSpecialToken().
aziz
parents: 315
diff changeset
1501 if (!(p[1] == LS[1] && (p[2] == LS[2] || p[2] == PS[2])))
6259fb93e3dd - Rewrote scanSpecialToken().
aziz
parents: 315
diff changeset
1502 goto default;
6259fb93e3dd - Rewrote scanSpecialToken().
aziz
parents: 315
diff changeset
1503 case '\r', '\n', 0, _Z_:
6259fb93e3dd - Rewrote scanSpecialToken().
aziz
parents: 315
diff changeset
1504 mid = MID.UnterminatedFilespec;
6259fb93e3dd - Rewrote scanSpecialToken().
aziz
parents: 315
diff changeset
1505 t.line_filespec.end = p;
6259fb93e3dd - Rewrote scanSpecialToken().
aziz
parents: 315
diff changeset
1506 goto Lerr;
6259fb93e3dd - Rewrote scanSpecialToken().
aziz
parents: 315
diff changeset
1507 default:
6259fb93e3dd - Rewrote scanSpecialToken().
aziz
parents: 315
diff changeset
1508 if (*p & 128)
6259fb93e3dd - Rewrote scanSpecialToken().
aziz
parents: 315
diff changeset
1509 decodeUTF8();
6259fb93e3dd - Rewrote scanSpecialToken().
aziz
parents: 315
diff changeset
1510 continue;
6259fb93e3dd - Rewrote scanSpecialToken().
aziz
parents: 315
diff changeset
1511 }
6259fb93e3dd - Rewrote scanSpecialToken().
aziz
parents: 315
diff changeset
1512 break; // Exit loop.
6259fb93e3dd - Rewrote scanSpecialToken().
aziz
parents: 315
diff changeset
1513 }
6259fb93e3dd - Rewrote scanSpecialToken().
aziz
parents: 315
diff changeset
1514 auto start = t.line_filespec.start +1; // +1 skips '"'
6259fb93e3dd - Rewrote scanSpecialToken().
aziz
parents: 315
diff changeset
1515 t.line_filespec.str = start[0 .. p - start];
6259fb93e3dd - Rewrote scanSpecialToken().
aziz
parents: 315
diff changeset
1516 t.line_filespec.end = p + 1;
6259fb93e3dd - Rewrote scanSpecialToken().
aziz
parents: 315
diff changeset
1517 state = State.End;
6259fb93e3dd - Rewrote scanSpecialToken().
aziz
parents: 315
diff changeset
1518 }
6259fb93e3dd - Rewrote scanSpecialToken().
aziz
parents: 315
diff changeset
1519 else/+ if (state == State.End)+/
6259fb93e3dd - Rewrote scanSpecialToken().
aziz
parents: 315
diff changeset
1520 {
6259fb93e3dd - Rewrote scanSpecialToken().
aziz
parents: 315
diff changeset
1521 mid = MID.UnterminatedSpecialToken;
6259fb93e3dd - Rewrote scanSpecialToken().
aziz
parents: 315
diff changeset
1522 goto Lerr;
6259fb93e3dd - Rewrote scanSpecialToken().
aziz
parents: 315
diff changeset
1523 }
6259fb93e3dd - Rewrote scanSpecialToken().
aziz
parents: 315
diff changeset
1524 }
51
cadd2bfe686c - Displaying error messages in XML.
aziz
parents: 50
diff changeset
1525 }
323
6259fb93e3dd - Rewrote scanSpecialToken().
aziz
parents: 315
diff changeset
1526
6259fb93e3dd - Rewrote scanSpecialToken().
aziz
parents: 315
diff changeset
1527 if (state == State.Number)
51
cadd2bfe686c - Displaying error messages in XML.
aziz
parents: 50
diff changeset
1528 {
cadd2bfe686c - Displaying error messages in XML.
aziz
parents: 50
diff changeset
1529 mid = MID.ExpectedNumberAfterSTLine;
30
426767b94635 - Added code for parsing the '#line' special token.
aziz
parents: 29
diff changeset
1530 goto Lerr;
426767b94635 - Added code for parsing the '#line' special token.
aziz
parents: 29
diff changeset
1531 }
426767b94635 - Added code for parsing the '#line' special token.
aziz
parents: 29
diff changeset
1532
323
6259fb93e3dd - Rewrote scanSpecialToken().
aziz
parents: 315
diff changeset
1533 this.loc = t.line_num.uint_ - 1;
6259fb93e3dd - Rewrote scanSpecialToken().
aziz
parents: 315
diff changeset
1534 if (t.line_filespec)
6259fb93e3dd - Rewrote scanSpecialToken().
aziz
parents: 315
diff changeset
1535 this.fileName = t.line_filespec.str;
6259fb93e3dd - Rewrote scanSpecialToken().
aziz
parents: 315
diff changeset
1536 t.end = p;
30
426767b94635 - Added code for parsing the '#line' special token.
aziz
parents: 29
diff changeset
1537
426767b94635 - Added code for parsing the '#line' special token.
aziz
parents: 29
diff changeset
1538 return;
426767b94635 - Added code for parsing the '#line' special token.
aziz
parents: 29
diff changeset
1539 Lerr:
323
6259fb93e3dd - Rewrote scanSpecialToken().
aziz
parents: 315
diff changeset
1540 t.end = p;
30
426767b94635 - Added code for parsing the '#line' special token.
aziz
parents: 29
diff changeset
1541 error(mid);
15
c70c028e47dd - Started implementation of lexing numbers.
aziz
parents: 14
diff changeset
1542 }
c70c028e47dd - Started implementation of lexing numbers.
aziz
parents: 14
diff changeset
1543
67
996065105910 - Fix: variadic arguments are local to the variadic function. Parameters are converted to an array of strings first and then passed to the constructor of class Problem.
aziz
parents: 66
diff changeset
1544 dchar decodeUTF8()
12
0989206cf73c - Added code to decode Unicode characters in identifiers.
aziz
parents: 11
diff changeset
1545 {
49
7f0fa15dcffc - Renamed function.
aziz
parents: 48
diff changeset
1546 assert(*p & 128, "check for ASCII char before calling decodeUTF8().");
12
0989206cf73c - Added code to decode Unicode characters in identifiers.
aziz
parents: 11
diff changeset
1547 size_t idx;
82
fc645fb2fe72 - scanEscapeSequences() doesn't return 0xFFFF as an error value anymore, because it is a valid codepoint usable by the user.
aziz
parents: 71
diff changeset
1548 dchar d;
49
7f0fa15dcffc - Renamed function.
aziz
parents: 48
diff changeset
1549 try
7f0fa15dcffc - Renamed function.
aziz
parents: 48
diff changeset
1550 {
7f0fa15dcffc - Renamed function.
aziz
parents: 48
diff changeset
1551 d = std.utf.decode(p[0 .. end-p], idx);
7f0fa15dcffc - Renamed function.
aziz
parents: 48
diff changeset
1552 p += idx -1;
7f0fa15dcffc - Renamed function.
aziz
parents: 48
diff changeset
1553 }
7f0fa15dcffc - Renamed function.
aziz
parents: 48
diff changeset
1554 catch (UtfException e)
7f0fa15dcffc - Renamed function.
aziz
parents: 48
diff changeset
1555 {
7f0fa15dcffc - Renamed function.
aziz
parents: 48
diff changeset
1556 error(MID.InvalidUTF8Sequence);
7f0fa15dcffc - Renamed function.
aziz
parents: 48
diff changeset
1557 // Skip to next valid utf-8 sequence
7f0fa15dcffc - Renamed function.
aziz
parents: 48
diff changeset
1558 while (UTF8stride[*++p] != 0xFF) {}
82
fc645fb2fe72 - scanEscapeSequences() doesn't return 0xFFFF as an error value anymore, because it is a valid codepoint usable by the user.
aziz
parents: 71
diff changeset
1559 --p;
49
7f0fa15dcffc - Renamed function.
aziz
parents: 48
diff changeset
1560 }
12
0989206cf73c - Added code to decode Unicode characters in identifiers.
aziz
parents: 11
diff changeset
1561 return d;
0989206cf73c - Added code to decode Unicode characters in identifiers.
aziz
parents: 11
diff changeset
1562 }
0989206cf73c - Added code to decode Unicode characters in identifiers.
aziz
parents: 11
diff changeset
1563
28
3a9daccf7d96 - Added table for identifiers to Lexer.
aziz
parents: 27
diff changeset
1564 void loadKeywords()
3a9daccf7d96 - Added table for identifiers to Lexer.
aziz
parents: 27
diff changeset
1565 {
3a9daccf7d96 - Added table for identifiers to Lexer.
aziz
parents: 27
diff changeset
1566 foreach(k; keywords)
3a9daccf7d96 - Added table for identifiers to Lexer.
aziz
parents: 27
diff changeset
1567 idtable[k.str] = k;
3a9daccf7d96 - Added table for identifiers to Lexer.
aziz
parents: 27
diff changeset
1568 }
239
7911f6a92e6e - Added 'new' and 'delete' declarations to Token and uncommented next and prev members. Added HEAD to TOK.
aziz
parents: 223
diff changeset
1569 /+
105
df34ec47fb81 - Added getState() method and State struct to Lexer.
aziz
parents: 103
diff changeset
1570 struct State
df34ec47fb81 - Added getState() method and State struct to Lexer.
aziz
parents: 103
diff changeset
1571 {
df34ec47fb81 - Added getState() method and State struct to Lexer.
aziz
parents: 103
diff changeset
1572 Lexer lexer;
209
921d15b1beeb - Added members token and loc to State.
aziz
parents: 207
diff changeset
1573 Token token;
105
df34ec47fb81 - Added getState() method and State struct to Lexer.
aziz
parents: 103
diff changeset
1574 char* scanPointer;
209
921d15b1beeb - Added members token and loc to State.
aziz
parents: 207
diff changeset
1575 int loc;
212
c9b9c979a620 - Fix: checking for _Z_.
aziz
parents: 209
diff changeset
1576 string fileName;
105
df34ec47fb81 - Added getState() method and State struct to Lexer.
aziz
parents: 103
diff changeset
1577 size_t errorLen;
212
c9b9c979a620 - Fix: checking for _Z_.
aziz
parents: 209
diff changeset
1578 static State opCall(Lexer lx)
105
df34ec47fb81 - Added getState() method and State struct to Lexer.
aziz
parents: 103
diff changeset
1579 {
df34ec47fb81 - Added getState() method and State struct to Lexer.
aziz
parents: 103
diff changeset
1580 State s;
212
c9b9c979a620 - Fix: checking for _Z_.
aziz
parents: 209
diff changeset
1581 s.lexer = lx;
c9b9c979a620 - Fix: checking for _Z_.
aziz
parents: 209
diff changeset
1582 s.token = lx.token;
c9b9c979a620 - Fix: checking for _Z_.
aziz
parents: 209
diff changeset
1583 s.scanPointer = lx.p;
c9b9c979a620 - Fix: checking for _Z_.
aziz
parents: 209
diff changeset
1584 s.loc = lx.loc;
c9b9c979a620 - Fix: checking for _Z_.
aziz
parents: 209
diff changeset
1585 s.fileName = lx.fileName;
c9b9c979a620 - Fix: checking for _Z_.
aziz
parents: 209
diff changeset
1586 s.errorLen = lx.errors.length;
105
df34ec47fb81 - Added getState() method and State struct to Lexer.
aziz
parents: 103
diff changeset
1587 return s;
df34ec47fb81 - Added getState() method and State struct to Lexer.
aziz
parents: 103
diff changeset
1588 }
df34ec47fb81 - Added getState() method and State struct to Lexer.
aziz
parents: 103
diff changeset
1589 void restore()
df34ec47fb81 - Added getState() method and State struct to Lexer.
aziz
parents: 103
diff changeset
1590 {
df34ec47fb81 - Added getState() method and State struct to Lexer.
aziz
parents: 103
diff changeset
1591 lexer.p = scanPointer;
209
921d15b1beeb - Added members token and loc to State.
aziz
parents: 207
diff changeset
1592 lexer.token = token;
921d15b1beeb - Added members token and loc to State.
aziz
parents: 207
diff changeset
1593 lexer.loc = loc;
212
c9b9c979a620 - Fix: checking for _Z_.
aziz
parents: 209
diff changeset
1594 lexer.fileName = fileName;
105
df34ec47fb81 - Added getState() method and State struct to Lexer.
aziz
parents: 103
diff changeset
1595 lexer.errors = lexer.errors[0..errorLen];
df34ec47fb81 - Added getState() method and State struct to Lexer.
aziz
parents: 103
diff changeset
1596 }
df34ec47fb81 - Added getState() method and State struct to Lexer.
aziz
parents: 103
diff changeset
1597 }
df34ec47fb81 - Added getState() method and State struct to Lexer.
aziz
parents: 103
diff changeset
1598
df34ec47fb81 - Added getState() method and State struct to Lexer.
aziz
parents: 103
diff changeset
1599 State getState()
df34ec47fb81 - Added getState() method and State struct to Lexer.
aziz
parents: 103
diff changeset
1600 {
212
c9b9c979a620 - Fix: checking for _Z_.
aziz
parents: 209
diff changeset
1601 return State(this);
105
df34ec47fb81 - Added getState() method and State struct to Lexer.
aziz
parents: 103
diff changeset
1602 }
239
7911f6a92e6e - Added 'new' and 'delete' declarations to Token and uncommented next and prev members. Added HEAD to TOK.
aziz
parents: 223
diff changeset
1603 +/
105
df34ec47fb81 - Added getState() method and State struct to Lexer.
aziz
parents: 103
diff changeset
1604
239
7911f6a92e6e - Added 'new' and 'delete' declarations to Token and uncommented next and prev members. Added HEAD to TOK.
aziz
parents: 223
diff changeset
1605 private void scanNext(ref Token* t)
103
511a1aa25896 - Added reportErrors member to Lexer. Moved peek() down and rewrote it a bit making use of reportErrors. error() uses reportErrors too.
aziz
parents: 94
diff changeset
1606 {
239
7911f6a92e6e - Added 'new' and 'delete' declarations to Token and uncommented next and prev members. Added HEAD to TOK.
aziz
parents: 223
diff changeset
1607 assert(t !is null);
7911f6a92e6e - Added 'new' and 'delete' declarations to Token and uncommented next and prev members. Added HEAD to TOK.
aziz
parents: 223
diff changeset
1608 if (t.next)
7911f6a92e6e - Added 'new' and 'delete' declarations to Token and uncommented next and prev members. Added HEAD to TOK.
aziz
parents: 223
diff changeset
1609 t = t.next;
344
757c86e2c3cc - Added member tail and destructor method to Lexer.
aziz
parents: 343
diff changeset
1610 else if (t != this.tail)
103
511a1aa25896 - Added reportErrors member to Lexer. Moved peek() down and rewrote it a bit making use of reportErrors. error() uses reportErrors too.
aziz
parents: 94
diff changeset
1611 {
239
7911f6a92e6e - Added 'new' and 'delete' declarations to Token and uncommented next and prev members. Added HEAD to TOK.
aziz
parents: 223
diff changeset
1612 Token* new_t = new Token;
7911f6a92e6e - Added 'new' and 'delete' declarations to Token and uncommented next and prev members. Added HEAD to TOK.
aziz
parents: 223
diff changeset
1613 scan(*new_t);
7911f6a92e6e - Added 'new' and 'delete' declarations to Token and uncommented next and prev members. Added HEAD to TOK.
aziz
parents: 223
diff changeset
1614 new_t.prev = t;
7911f6a92e6e - Added 'new' and 'delete' declarations to Token and uncommented next and prev members. Added HEAD to TOK.
aziz
parents: 223
diff changeset
1615 t.next = new_t;
7911f6a92e6e - Added 'new' and 'delete' declarations to Token and uncommented next and prev members. Added HEAD to TOK.
aziz
parents: 223
diff changeset
1616 t = new_t;
103
511a1aa25896 - Added reportErrors member to Lexer. Moved peek() down and rewrote it a bit making use of reportErrors. error() uses reportErrors too.
aziz
parents: 94
diff changeset
1617 }
239
7911f6a92e6e - Added 'new' and 'delete' declarations to Token and uncommented next and prev members. Added HEAD to TOK.
aziz
parents: 223
diff changeset
1618 }
7911f6a92e6e - Added 'new' and 'delete' declarations to Token and uncommented next and prev members. Added HEAD to TOK.
aziz
parents: 223
diff changeset
1619
7911f6a92e6e - Added 'new' and 'delete' declarations to Token and uncommented next and prev members. Added HEAD to TOK.
aziz
parents: 223
diff changeset
1620 void peek(ref Token* t)
7911f6a92e6e - Added 'new' and 'delete' declarations to Token and uncommented next and prev members. Added HEAD to TOK.
aziz
parents: 223
diff changeset
1621 {
7911f6a92e6e - Added 'new' and 'delete' declarations to Token and uncommented next and prev members. Added HEAD to TOK.
aziz
parents: 223
diff changeset
1622 scanNext(t);
7911f6a92e6e - Added 'new' and 'delete' declarations to Token and uncommented next and prev members. Added HEAD to TOK.
aziz
parents: 223
diff changeset
1623 }
7911f6a92e6e - Added 'new' and 'delete' declarations to Token and uncommented next and prev members. Added HEAD to TOK.
aziz
parents: 223
diff changeset
1624
7911f6a92e6e - Added 'new' and 'delete' declarations to Token and uncommented next and prev members. Added HEAD to TOK.
aziz
parents: 223
diff changeset
1625 TOK nextToken()
7911f6a92e6e - Added 'new' and 'delete' declarations to Token and uncommented next and prev members. Added HEAD to TOK.
aziz
parents: 223
diff changeset
1626 {
7911f6a92e6e - Added 'new' and 'delete' declarations to Token and uncommented next and prev members. Added HEAD to TOK.
aziz
parents: 223
diff changeset
1627 scanNext(this.token);
7911f6a92e6e - Added 'new' and 'delete' declarations to Token and uncommented next and prev members. Added HEAD to TOK.
aziz
parents: 223
diff changeset
1628 return this.token.type;
103
511a1aa25896 - Added reportErrors member to Lexer. Moved peek() down and rewrote it a bit making use of reportErrors. error() uses reportErrors too.
aziz
parents: 94
diff changeset
1629 }
511a1aa25896 - Added reportErrors member to Lexer. Moved peek() down and rewrote it a bit making use of reportErrors. error() uses reportErrors too.
aziz
parents: 94
diff changeset
1630
66
8e84db78ad55 - Added support for variadic arguments in error messages.
aziz
parents: 65
diff changeset
1631 void error(MID id, ...)
18
c48d2125f1e2 - Moved code for scanning character literals to separate function.
aziz
parents: 17
diff changeset
1632 {
239
7911f6a92e6e - Added 'new' and 'delete' declarations to Token and uncommented next and prev members. Added HEAD to TOK.
aziz
parents: 223
diff changeset
1633 // if (reportErrors)
7911f6a92e6e - Added 'new' and 'delete' declarations to Token and uncommented next and prev members. Added HEAD to TOK.
aziz
parents: 223
diff changeset
1634 errors ~= new Information(InfoType.Lexer, id, loc, arguments(_arguments, _argptr));
18
c48d2125f1e2 - Moved code for scanning character literals to separate function.
aziz
parents: 17
diff changeset
1635 }
c48d2125f1e2 - Moved code for scanning character literals to separate function.
aziz
parents: 17
diff changeset
1636
207
481ed2b63a49 - Added contracts to method scan().
aziz
parents: 131
diff changeset
1637 unittest
481ed2b63a49 - Added contracts to method scan().
aziz
parents: 131
diff changeset
1638 {
481ed2b63a49 - Added contracts to method scan().
aziz
parents: 131
diff changeset
1639 string sourceText = "unittest { }";
481ed2b63a49 - Added contracts to method scan().
aziz
parents: 131
diff changeset
1640 auto lx = new Lexer(sourceText, null);
481ed2b63a49 - Added contracts to method scan().
aziz
parents: 131
diff changeset
1641
481ed2b63a49 - Added contracts to method scan().
aziz
parents: 131
diff changeset
1642 Token next;
481ed2b63a49 - Added contracts to method scan().
aziz
parents: 131
diff changeset
1643 lx.peek(next);
481ed2b63a49 - Added contracts to method scan().
aziz
parents: 131
diff changeset
1644 assert(next == TOK.Unittest);
481ed2b63a49 - Added contracts to method scan().
aziz
parents: 131
diff changeset
1645 lx.peek(next);
481ed2b63a49 - Added contracts to method scan().
aziz
parents: 131
diff changeset
1646 assert(next == TOK.LBrace);
481ed2b63a49 - Added contracts to method scan().
aziz
parents: 131
diff changeset
1647 lx.peek(next);
481ed2b63a49 - Added contracts to method scan().
aziz
parents: 131
diff changeset
1648 assert(next == TOK.RBrace);
481ed2b63a49 - Added contracts to method scan().
aziz
parents: 131
diff changeset
1649 lx.peek(next);
481ed2b63a49 - Added contracts to method scan().
aziz
parents: 131
diff changeset
1650 assert(next == TOK.EOF);
481ed2b63a49 - Added contracts to method scan().
aziz
parents: 131
diff changeset
1651 writefln("end of peek() unittest");
481ed2b63a49 - Added contracts to method scan().
aziz
parents: 131
diff changeset
1652 }
481ed2b63a49 - Added contracts to method scan().
aziz
parents: 131
diff changeset
1653
306
9c866aadcb5b - Moved code out of main() to separate functions.
aziz
parents: 272
diff changeset
1654 Token* getTokens()
4
92df59b1ec4a - Started implementation of scan().
aziz
parents: 3
diff changeset
1655 {
306
9c866aadcb5b - Moved code out of main() to separate functions.
aziz
parents: 272
diff changeset
1656 while (nextToken() != TOK.EOF)
9c866aadcb5b - Moved code out of main() to separate functions.
aziz
parents: 272
diff changeset
1657 {}
9c866aadcb5b - Moved code out of main() to separate functions.
aziz
parents: 272
diff changeset
1658 return head;
3
4bbce78bfb1e - Added TOK enum.
aziz
parents: 2
diff changeset
1659 }
48
c2e0e0269c28 - Added code for scanning escape string literals.
aziz
parents: 47
diff changeset
1660
c2e0e0269c28 - Added code for scanning escape string literals.
aziz
parents: 47
diff changeset
1661 private void encodeUTF8(inout char[] str, dchar d)
c2e0e0269c28 - Added code for scanning escape string literals.
aziz
parents: 47
diff changeset
1662 {
c2e0e0269c28 - Added code for scanning escape string literals.
aziz
parents: 47
diff changeset
1663 char[6] b;
c2e0e0269c28 - Added code for scanning escape string literals.
aziz
parents: 47
diff changeset
1664 assert(d > 0x7F, "check for ASCII char before calling encodeUTF8().");
c2e0e0269c28 - Added code for scanning escape string literals.
aziz
parents: 47
diff changeset
1665 if (d < 0x800)
c2e0e0269c28 - Added code for scanning escape string literals.
aziz
parents: 47
diff changeset
1666 {
c2e0e0269c28 - Added code for scanning escape string literals.
aziz
parents: 47
diff changeset
1667 b[0] = 0xC0 | (d >> 6);
c2e0e0269c28 - Added code for scanning escape string literals.
aziz
parents: 47
diff changeset
1668 b[1] = 0x80 | (d & 0x3F);
c2e0e0269c28 - Added code for scanning escape string literals.
aziz
parents: 47
diff changeset
1669 str ~= b[0..2];
c2e0e0269c28 - Added code for scanning escape string literals.
aziz
parents: 47
diff changeset
1670 }
c2e0e0269c28 - Added code for scanning escape string literals.
aziz
parents: 47
diff changeset
1671 else if (d < 0x10000)
c2e0e0269c28 - Added code for scanning escape string literals.
aziz
parents: 47
diff changeset
1672 {
c2e0e0269c28 - Added code for scanning escape string literals.
aziz
parents: 47
diff changeset
1673 b[0] = 0xE0 | (d >> 12);
c2e0e0269c28 - Added code for scanning escape string literals.
aziz
parents: 47
diff changeset
1674 b[1] = 0x80 | ((d >> 6) & 0x3F);
c2e0e0269c28 - Added code for scanning escape string literals.
aziz
parents: 47
diff changeset
1675 b[2] = 0x80 | (d & 0x3F);
c2e0e0269c28 - Added code for scanning escape string literals.
aziz
parents: 47
diff changeset
1676 str ~= b[0..3];
c2e0e0269c28 - Added code for scanning escape string literals.
aziz
parents: 47
diff changeset
1677 }
c2e0e0269c28 - Added code for scanning escape string literals.
aziz
parents: 47
diff changeset
1678 else if (d < 0x200000)
c2e0e0269c28 - Added code for scanning escape string literals.
aziz
parents: 47
diff changeset
1679 {
c2e0e0269c28 - Added code for scanning escape string literals.
aziz
parents: 47
diff changeset
1680 b[0] = 0xF0 | (d >> 18);
c2e0e0269c28 - Added code for scanning escape string literals.
aziz
parents: 47
diff changeset
1681 b[1] = 0x80 | ((d >> 12) & 0x3F);
c2e0e0269c28 - Added code for scanning escape string literals.
aziz
parents: 47
diff changeset
1682 b[2] = 0x80 | ((d >> 6) & 0x3F);
c2e0e0269c28 - Added code for scanning escape string literals.
aziz
parents: 47
diff changeset
1683 b[3] = 0x80 | (d & 0x3F);
c2e0e0269c28 - Added code for scanning escape string literals.
aziz
parents: 47
diff changeset
1684 str ~= b[0..4];
c2e0e0269c28 - Added code for scanning escape string literals.
aziz
parents: 47
diff changeset
1685 }
c2e0e0269c28 - Added code for scanning escape string literals.
aziz
parents: 47
diff changeset
1686 else if (d < 0x4000000)
c2e0e0269c28 - Added code for scanning escape string literals.
aziz
parents: 47
diff changeset
1687 {
c2e0e0269c28 - Added code for scanning escape string literals.
aziz
parents: 47
diff changeset
1688 b[0] = 0xF8 | (d >> 24);
c2e0e0269c28 - Added code for scanning escape string literals.
aziz
parents: 47
diff changeset
1689 b[1] = 0x80 | ((d >> 18) & 0x3F);
c2e0e0269c28 - Added code for scanning escape string literals.
aziz
parents: 47
diff changeset
1690 b[2] = 0x80 | ((d >> 12) & 0x3F);
c2e0e0269c28 - Added code for scanning escape string literals.
aziz
parents: 47
diff changeset
1691 b[3] = 0x80 | ((d >> 6) & 0x3F);
c2e0e0269c28 - Added code for scanning escape string literals.
aziz
parents: 47
diff changeset
1692 b[4] = 0x80 | (d & 0x3F);
c2e0e0269c28 - Added code for scanning escape string literals.
aziz
parents: 47
diff changeset
1693 str ~= b[0..5];
c2e0e0269c28 - Added code for scanning escape string literals.
aziz
parents: 47
diff changeset
1694 }
c2e0e0269c28 - Added code for scanning escape string literals.
aziz
parents: 47
diff changeset
1695 else if (d < 0x80000000)
c2e0e0269c28 - Added code for scanning escape string literals.
aziz
parents: 47
diff changeset
1696 {
c2e0e0269c28 - Added code for scanning escape string literals.
aziz
parents: 47
diff changeset
1697 b[0] = 0xFC | (d >> 30);
c2e0e0269c28 - Added code for scanning escape string literals.
aziz
parents: 47
diff changeset
1698 b[1] = 0x80 | ((d >> 24) & 0x3F);
c2e0e0269c28 - Added code for scanning escape string literals.
aziz
parents: 47
diff changeset
1699 b[2] = 0x80 | ((d >> 18) & 0x3F);
c2e0e0269c28 - Added code for scanning escape string literals.
aziz
parents: 47
diff changeset
1700 b[3] = 0x80 | ((d >> 12) & 0x3F);
c2e0e0269c28 - Added code for scanning escape string literals.
aziz
parents: 47
diff changeset
1701 b[4] = 0x80 | ((d >> 6) & 0x3F);
c2e0e0269c28 - Added code for scanning escape string literals.
aziz
parents: 47
diff changeset
1702 b[5] = 0x80 | (d & 0x3F);
c2e0e0269c28 - Added code for scanning escape string literals.
aziz
parents: 47
diff changeset
1703 str ~= b[0..6];
c2e0e0269c28 - Added code for scanning escape string literals.
aziz
parents: 47
diff changeset
1704 }
c2e0e0269c28 - Added code for scanning escape string literals.
aziz
parents: 47
diff changeset
1705 else
c2e0e0269c28 - Added code for scanning escape string literals.
aziz
parents: 47
diff changeset
1706 error(MID.InvalidUnicodeCharacter);
c2e0e0269c28 - Added code for scanning escape string literals.
aziz
parents: 47
diff changeset
1707 }
5
79b4e8848794 - Started writing XML generator.
aziz
parents: 4
diff changeset
1708 }
39
69b940398d7b - Added unittest to test correct parsing of operator tokens.
aziz
parents: 38
diff changeset
1709
69b940398d7b - Added unittest to test correct parsing of operator tokens.
aziz
parents: 38
diff changeset
1710 unittest
69b940398d7b - Added unittest to test correct parsing of operator tokens.
aziz
parents: 38
diff changeset
1711 {
40
9d5ceb0f8be9 - Added more tokens for testing.
aziz
parents: 39
diff changeset
1712 string[] toks = [
9d5ceb0f8be9 - Added more tokens for testing.
aziz
parents: 39
diff changeset
1713 ">", ">=", ">>", ">>=", ">>>", ">>>=", "<", "<=", "<>",
9d5ceb0f8be9 - Added more tokens for testing.
aziz
parents: 39
diff changeset
1714 "<>=", "<<", "<<=", "!", "!<", "!>", "!<=", "!>=", "!<>",
9d5ceb0f8be9 - Added more tokens for testing.
aziz
parents: 39
diff changeset
1715 "!<>=", ".", "..", "...", "&", "&&", "&=", "+", "++",
9d5ceb0f8be9 - Added more tokens for testing.
aziz
parents: 39
diff changeset
1716 "+=", "-", "--", "-=", "=", "==", "~", "~=", "*",
9d5ceb0f8be9 - Added more tokens for testing.
aziz
parents: 39
diff changeset
1717 "*=", "/", "/=", "^", "^=", "%", "%=", "(", ")",
9d5ceb0f8be9 - Added more tokens for testing.
aziz
parents: 39
diff changeset
1718 "[", "]", "{", "}", ":", ";", "?", ",", "$"
9d5ceb0f8be9 - Added more tokens for testing.
aziz
parents: 39
diff changeset
1719 ];
39
69b940398d7b - Added unittest to test correct parsing of operator tokens.
aziz
parents: 38
diff changeset
1720
69b940398d7b - Added unittest to test correct parsing of operator tokens.
aziz
parents: 38
diff changeset
1721 char[] src;
69b940398d7b - Added unittest to test correct parsing of operator tokens.
aziz
parents: 38
diff changeset
1722
40
9d5ceb0f8be9 - Added more tokens for testing.
aziz
parents: 39
diff changeset
1723 foreach (op; toks)
39
69b940398d7b - Added unittest to test correct parsing of operator tokens.
aziz
parents: 38
diff changeset
1724 src ~= op ~ " ";
69b940398d7b - Added unittest to test correct parsing of operator tokens.
aziz
parents: 38
diff changeset
1725
69b940398d7b - Added unittest to test correct parsing of operator tokens.
aziz
parents: 38
diff changeset
1726 auto lx = new Lexer(src, "");
69b940398d7b - Added unittest to test correct parsing of operator tokens.
aziz
parents: 38
diff changeset
1727 auto tokens = lx.getTokens();
69b940398d7b - Added unittest to test correct parsing of operator tokens.
aziz
parents: 38
diff changeset
1728
69b940398d7b - Added unittest to test correct parsing of operator tokens.
aziz
parents: 38
diff changeset
1729 tokens = tokens[0..$-1]; // exclude TOK.EOF
69b940398d7b - Added unittest to test correct parsing of operator tokens.
aziz
parents: 38
diff changeset
1730
40
9d5ceb0f8be9 - Added more tokens for testing.
aziz
parents: 39
diff changeset
1731 assert(tokens.length == toks.length );
39
69b940398d7b - Added unittest to test correct parsing of operator tokens.
aziz
parents: 38
diff changeset
1732
69b940398d7b - Added unittest to test correct parsing of operator tokens.
aziz
parents: 38
diff changeset
1733 foreach (i, t; tokens)
207
481ed2b63a49 - Added contracts to method scan().
aziz
parents: 131
diff changeset
1734 assert(t.srcText == toks[i], std.string.format("Lexed '%s' but expected '%s'", t.srcText, toks[i]));
41
2b7be1d67d4d - Optimized scanner of block comments.
aziz
parents: 40
diff changeset
1735 }
55
5887751f8e04 - Relocated ptable to the bottom of the source file.
aziz
parents: 54
diff changeset
1736
67
996065105910 - Fix: variadic arguments are local to the variadic function. Parameters are converted to an array of strings first and then passed to the constructor of class Problem.
aziz
parents: 66
diff changeset
1737 unittest
996065105910 - Fix: variadic arguments are local to the variadic function. Parameters are converted to an array of strings first and then passed to the constructor of class Problem.
aziz
parents: 66
diff changeset
1738 {
996065105910 - Fix: variadic arguments are local to the variadic function. Parameters are converted to an array of strings first and then passed to the constructor of class Problem.
aziz
parents: 66
diff changeset
1739 // Numbers unittest
68
7eb83dd38901 - Simplified suffix rule and added a few more numbers to unittest.
aziz
parents: 67
diff changeset
1740 // 0L 0ULi 0_L 0_UL 0x0U 0x0p2 0_Fi 0_e2 0_F 0_i
7eb83dd38901 - Simplified suffix rule and added a few more numbers to unittest.
aziz
parents: 67
diff changeset
1741 // 0u 0U 0uL 0UL 0L 0LU 0Lu
7eb83dd38901 - Simplified suffix rule and added a few more numbers to unittest.
aziz
parents: 67
diff changeset
1742 // 0Li 0f 0F 0fi 0Fi 0i
7eb83dd38901 - Simplified suffix rule and added a few more numbers to unittest.
aziz
parents: 67
diff changeset
1743 // 0b_1_LU 0b1000u
7eb83dd38901 - Simplified suffix rule and added a few more numbers to unittest.
aziz
parents: 67
diff changeset
1744 // 0x232Lu
67
996065105910 - Fix: variadic arguments are local to the variadic function. Parameters are converted to an array of strings first and then passed to the constructor of class Problem.
aziz
parents: 66
diff changeset
1745 }
996065105910 - Fix: variadic arguments are local to the variadic function. Parameters are converted to an array of strings first and then passed to the constructor of class Problem.
aziz
parents: 66
diff changeset
1746
55
5887751f8e04 - Relocated ptable to the bottom of the source file.
aziz
parents: 54
diff changeset
1747 /// ASCII character properties table.
5887751f8e04 - Relocated ptable to the bottom of the source file.
aziz
parents: 54
diff changeset
1748 static const int ptable[256] = [
5887751f8e04 - Relocated ptable to the bottom of the source file.
aziz
parents: 54
diff changeset
1749 0, 0, 0, 0, 0, 0, 0, 0, 0,32, 0,32,32, 0, 0, 0,
5887751f8e04 - Relocated ptable to the bottom of the source file.
aziz
parents: 54
diff changeset
1750 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
5887751f8e04 - Relocated ptable to the bottom of the source file.
aziz
parents: 54
diff changeset
1751 32, 0, 0x2200, 0, 0, 0, 0, 0x2700, 0, 0, 0, 0, 0, 0, 0, 0,
5887751f8e04 - Relocated ptable to the bottom of the source file.
aziz
parents: 54
diff changeset
1752 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 0, 0, 0, 0, 0, 0x3f00,
5887751f8e04 - Relocated ptable to the bottom of the source file.
aziz
parents: 54
diff changeset
1753 0,12,12,12,12,12,12, 8, 8, 8, 8, 8, 8, 8, 8, 8,
5887751f8e04 - Relocated ptable to the bottom of the source file.
aziz
parents: 54
diff changeset
1754 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 0, 0x5c00, 0, 0,16,
5887751f8e04 - Relocated ptable to the bottom of the source file.
aziz
parents: 54
diff changeset
1755 0, 0x70c, 0x80c,12,12,12, 0xc0c, 8, 8, 8, 8, 8, 8, 8, 0xa08, 8,
5887751f8e04 - Relocated ptable to the bottom of the source file.
aziz
parents: 54
diff changeset
1756 8, 8, 0xd08, 8, 0x908, 8, 0xb08, 8, 8, 8, 8, 0, 0, 0, 0, 0,
5887751f8e04 - Relocated ptable to the bottom of the source file.
aziz
parents: 54
diff changeset
1757 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
5887751f8e04 - Relocated ptable to the bottom of the source file.
aziz
parents: 54
diff changeset
1758 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
5887751f8e04 - Relocated ptable to the bottom of the source file.
aziz
parents: 54
diff changeset
1759 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
5887751f8e04 - Relocated ptable to the bottom of the source file.
aziz
parents: 54
diff changeset
1760 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
5887751f8e04 - Relocated ptable to the bottom of the source file.
aziz
parents: 54
diff changeset
1761 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
5887751f8e04 - Relocated ptable to the bottom of the source file.
aziz
parents: 54
diff changeset
1762 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
5887751f8e04 - Relocated ptable to the bottom of the source file.
aziz
parents: 54
diff changeset
1763 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
5887751f8e04 - Relocated ptable to the bottom of the source file.
aziz
parents: 54
diff changeset
1764 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0
5887751f8e04 - Relocated ptable to the bottom of the source file.
aziz
parents: 54
diff changeset
1765 ];
5887751f8e04 - Relocated ptable to the bottom of the source file.
aziz
parents: 54
diff changeset
1766
5887751f8e04 - Relocated ptable to the bottom of the source file.
aziz
parents: 54
diff changeset
1767 enum CProperty
5887751f8e04 - Relocated ptable to the bottom of the source file.
aziz
parents: 54
diff changeset
1768 {
5887751f8e04 - Relocated ptable to the bottom of the source file.
aziz
parents: 54
diff changeset
1769 Octal = 1,
5887751f8e04 - Relocated ptable to the bottom of the source file.
aziz
parents: 54
diff changeset
1770 Digit = 1<<1,
5887751f8e04 - Relocated ptable to the bottom of the source file.
aziz
parents: 54
diff changeset
1771 Hex = 1<<2,
5887751f8e04 - Relocated ptable to the bottom of the source file.
aziz
parents: 54
diff changeset
1772 Alpha = 1<<3,
5887751f8e04 - Relocated ptable to the bottom of the source file.
aziz
parents: 54
diff changeset
1773 Underscore = 1<<4,
5887751f8e04 - Relocated ptable to the bottom of the source file.
aziz
parents: 54
diff changeset
1774 Whitespace = 1<<5
5887751f8e04 - Relocated ptable to the bottom of the source file.
aziz
parents: 54
diff changeset
1775 }
5887751f8e04 - Relocated ptable to the bottom of the source file.
aziz
parents: 54
diff changeset
1776
5887751f8e04 - Relocated ptable to the bottom of the source file.
aziz
parents: 54
diff changeset
1777 const uint EVMask = 0xFF00; // Bit mask for escape value
5887751f8e04 - Relocated ptable to the bottom of the source file.
aziz
parents: 54
diff changeset
1778
5887751f8e04 - Relocated ptable to the bottom of the source file.
aziz
parents: 54
diff changeset
1779 private alias CProperty CP;
5887751f8e04 - Relocated ptable to the bottom of the source file.
aziz
parents: 54
diff changeset
1780 int isoctal(char c) { return ptable[c] & CP.Octal; }
5887751f8e04 - Relocated ptable to the bottom of the source file.
aziz
parents: 54
diff changeset
1781 int isdigit(char c) { return ptable[c] & CP.Digit; }
5887751f8e04 - Relocated ptable to the bottom of the source file.
aziz
parents: 54
diff changeset
1782 int ishexad(char c) { return ptable[c] & CP.Hex; }
5887751f8e04 - Relocated ptable to the bottom of the source file.
aziz
parents: 54
diff changeset
1783 int isalpha(char c) { return ptable[c] & CP.Alpha; }
5887751f8e04 - Relocated ptable to the bottom of the source file.
aziz
parents: 54
diff changeset
1784 int isalnum(char c) { return ptable[c] & (CP.Alpha | CP.Digit); }
5887751f8e04 - Relocated ptable to the bottom of the source file.
aziz
parents: 54
diff changeset
1785 int isidbeg(char c) { return ptable[c] & (CP.Alpha | CP.Underscore); }
5887751f8e04 - Relocated ptable to the bottom of the source file.
aziz
parents: 54
diff changeset
1786 int isident(char c) { return ptable[c] & (CP.Alpha | CP.Underscore | CP.Digit); }
5887751f8e04 - Relocated ptable to the bottom of the source file.
aziz
parents: 54
diff changeset
1787 int isspace(char c) { return ptable[c] & CP.Whitespace; }
5887751f8e04 - Relocated ptable to the bottom of the source file.
aziz
parents: 54
diff changeset
1788 int char2ev(char c) { return ptable[c] >> 8; /*(ptable[c] & EVMask) >> 8;*/ }
5887751f8e04 - Relocated ptable to the bottom of the source file.
aziz
parents: 54
diff changeset
1789
5887751f8e04 - Relocated ptable to the bottom of the source file.
aziz
parents: 54
diff changeset
1790 version(gen_ptable)
5887751f8e04 - Relocated ptable to the bottom of the source file.
aziz
parents: 54
diff changeset
1791 static this()
5887751f8e04 - Relocated ptable to the bottom of the source file.
aziz
parents: 54
diff changeset
1792 {
5887751f8e04 - Relocated ptable to the bottom of the source file.
aziz
parents: 54
diff changeset
1793 alias ptable p;
5887751f8e04 - Relocated ptable to the bottom of the source file.
aziz
parents: 54
diff changeset
1794 // Initialize character properties table.
5887751f8e04 - Relocated ptable to the bottom of the source file.
aziz
parents: 54
diff changeset
1795 for (int i; i < p.length; ++i)
5887751f8e04 - Relocated ptable to the bottom of the source file.
aziz
parents: 54
diff changeset
1796 {
5887751f8e04 - Relocated ptable to the bottom of the source file.
aziz
parents: 54
diff changeset
1797 p[i] = 0;
5887751f8e04 - Relocated ptable to the bottom of the source file.
aziz
parents: 54
diff changeset
1798 if ('0' <= i && i <= '7')
5887751f8e04 - Relocated ptable to the bottom of the source file.
aziz
parents: 54
diff changeset
1799 p[i] |= CP.Octal;
5887751f8e04 - Relocated ptable to the bottom of the source file.
aziz
parents: 54
diff changeset
1800 if ('0' <= i && i <= '9')
5887751f8e04 - Relocated ptable to the bottom of the source file.
aziz
parents: 54
diff changeset
1801 p[i] |= CP.Digit;
5887751f8e04 - Relocated ptable to the bottom of the source file.
aziz
parents: 54
diff changeset
1802 if (isdigit(i) || 'a' <= i && i <= 'f' || 'A' <= i && i <= 'F')
5887751f8e04 - Relocated ptable to the bottom of the source file.
aziz
parents: 54
diff changeset
1803 p[i] |= CP.Hex;
5887751f8e04 - Relocated ptable to the bottom of the source file.
aziz
parents: 54
diff changeset
1804 if ('a' <= i && i <= 'z' || 'A' <= i && i <= 'Z')
5887751f8e04 - Relocated ptable to the bottom of the source file.
aziz
parents: 54
diff changeset
1805 p[i] |= CP.Alpha;
5887751f8e04 - Relocated ptable to the bottom of the source file.
aziz
parents: 54
diff changeset
1806 if (i == '_')
5887751f8e04 - Relocated ptable to the bottom of the source file.
aziz
parents: 54
diff changeset
1807 p[i] |= CP.Underscore;
5887751f8e04 - Relocated ptable to the bottom of the source file.
aziz
parents: 54
diff changeset
1808 if (i == ' ' || i == '\t' || i == '\v' || i == '\f')
5887751f8e04 - Relocated ptable to the bottom of the source file.
aziz
parents: 54
diff changeset
1809 p[i] |= CP.Whitespace;
5887751f8e04 - Relocated ptable to the bottom of the source file.
aziz
parents: 54
diff changeset
1810 }
5887751f8e04 - Relocated ptable to the bottom of the source file.
aziz
parents: 54
diff changeset
1811 // Store escape sequence values in second byte.
5887751f8e04 - Relocated ptable to the bottom of the source file.
aziz
parents: 54
diff changeset
1812 assert(CProperty.max <= ubyte.max, "character property flags and escape value byte overlap.");
5887751f8e04 - Relocated ptable to the bottom of the source file.
aziz
parents: 54
diff changeset
1813 p['\''] |= 39 << 8;
5887751f8e04 - Relocated ptable to the bottom of the source file.
aziz
parents: 54
diff changeset
1814 p['"'] |= 34 << 8;
5887751f8e04 - Relocated ptable to the bottom of the source file.
aziz
parents: 54
diff changeset
1815 p['?'] |= 63 << 8;
5887751f8e04 - Relocated ptable to the bottom of the source file.
aziz
parents: 54
diff changeset
1816 p['\\'] |= 92 << 8;
5887751f8e04 - Relocated ptable to the bottom of the source file.
aziz
parents: 54
diff changeset
1817 p['a'] |= 7 << 8;
5887751f8e04 - Relocated ptable to the bottom of the source file.
aziz
parents: 54
diff changeset
1818 p['b'] |= 8 << 8;
5887751f8e04 - Relocated ptable to the bottom of the source file.
aziz
parents: 54
diff changeset
1819 p['f'] |= 12 << 8;
5887751f8e04 - Relocated ptable to the bottom of the source file.
aziz
parents: 54
diff changeset
1820 p['n'] |= 10 << 8;
5887751f8e04 - Relocated ptable to the bottom of the source file.
aziz
parents: 54
diff changeset
1821 p['r'] |= 13 << 8;
5887751f8e04 - Relocated ptable to the bottom of the source file.
aziz
parents: 54
diff changeset
1822 p['t'] |= 9 << 8;
5887751f8e04 - Relocated ptable to the bottom of the source file.
aziz
parents: 54
diff changeset
1823 p['v'] |= 11 << 8;
5887751f8e04 - Relocated ptable to the bottom of the source file.
aziz
parents: 54
diff changeset
1824 // Print a formatted array literal.
5887751f8e04 - Relocated ptable to the bottom of the source file.
aziz
parents: 54
diff changeset
1825 char[] array = "[\n";
5887751f8e04 - Relocated ptable to the bottom of the source file.
aziz
parents: 54
diff changeset
1826 for (int i; i < p.length; ++i)
5887751f8e04 - Relocated ptable to the bottom of the source file.
aziz
parents: 54
diff changeset
1827 {
5887751f8e04 - Relocated ptable to the bottom of the source file.
aziz
parents: 54
diff changeset
1828 int c = p[i];
5887751f8e04 - Relocated ptable to the bottom of the source file.
aziz
parents: 54
diff changeset
1829 array ~= std.string.format(c>255?" 0x%x,":"%2d,", c, ((i+1) % 16) ? "":"\n");
5887751f8e04 - Relocated ptable to the bottom of the source file.
aziz
parents: 54
diff changeset
1830 }
5887751f8e04 - Relocated ptable to the bottom of the source file.
aziz
parents: 54
diff changeset
1831 array[$-2..$] = "\n]";
5887751f8e04 - Relocated ptable to the bottom of the source file.
aziz
parents: 54
diff changeset
1832 writefln(array);
5887751f8e04 - Relocated ptable to the bottom of the source file.
aziz
parents: 54
diff changeset
1833 }