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annotate trunk/src/dil/doc/Macro.d @ 737:f88b5285b86b

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Implemented DDocEmitter. Fixed quite a few bugs.
author Aziz K?ksal <aziz.koeksal@gmail.com>
date Sat, 09 Feb 2008 02:00:20 +0100
parents ca7607226caa
children 49fe21aa387c
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1 /++
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2 Author: Aziz Köksal
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3 License: GPL3
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4 +/
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5 module dil.doc.Macro;
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6
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7 import dil.doc.Parser;
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8 import dil.lexer.Funcs;
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9 import dil.Unicode;
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10 import common;
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11
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12 class Macro
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13 {
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14 string name; /// The name of the macro.
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15 string text; /// Substitution text.
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16 uint callLevel; /// Recursive call level.
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17 this (string name, string text)
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18 {
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19 this.name = name;
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20 this.text = text;
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21 }
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22 }
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23
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24 class MacroTable
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25 {
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26 MacroTable parent;
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27 Macro[string] table;
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28
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29 this(MacroTable parent = null)
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30 {
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31 this.parent = parent;
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32 }
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33
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34 void insert(Macro macro_)
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35 {
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36 table[macro_.name] = macro_;
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37 }
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38
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39 void insert(Macro[] macros)
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40 {
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41 foreach (macro_; macros)
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42 insert(macro_);
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43 }
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44
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45 void insert(string name, string text)
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46 {
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47 insert(new Macro(name, text));
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48 }
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49
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50 void insert(string[] names, string[] texts)
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51 {
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52 assert(names.length == texts.length);
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53 foreach (i, name; names)
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54 insert(name, texts[i]);
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55 }
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56
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57 Macro search(string name)
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58 {
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59 auto pmacro = name in table;
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60 if (pmacro)
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61 return *pmacro;
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62 if (parent)
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63 return parent.search(name);
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64 return null;
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65 }
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66
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67 bool isRoot()
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68 { return parent is null; }
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69 }
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70
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71 struct MacroParser
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72 {
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73 Macro[] parse(string text)
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74 {
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75 IdentValueParser parser;
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76 auto idvalues = parser.parse(text);
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77 auto macros = new Macro[idvalues.length];
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78 foreach (i, idvalue; idvalues)
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79 macros[i] = new Macro(idvalue.ident, idvalue.value);
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80 return macros;
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81 }
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82 }
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83
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84 char[] makeString(char* begin, char* end)
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85 {
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86 return begin[0 .. end - begin];
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87 }
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88
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89 char[] expandMacros(MacroTable table, char[] text, char[][] args = null)
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90 {
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91 char[] result;
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92 char* p = text.ptr;
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93 char* textEnd = p + text.length;
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94 char* macroEnd = p;
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95 while (p+3 < textEnd) // minimum 4 chars: $(x)
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96 {
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97 if (*p == '$' && p[1] == '(')
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98 {
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99 // Copy string between macros.
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100 if (macroEnd !is p)
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101 result ~= makeString(macroEnd, p);
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102 p += 2;
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103 auto idBegin = p;
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104 if (isidbeg(*p) || isUnicodeAlpha(p, textEnd)) // IdStart
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105 {
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106 do // IdChar*
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107 p++;
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108 while (p < textEnd && (isident(*p) || isUnicodeAlpha(p, textEnd)))
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109 // Create macro name.
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110 auto macroName = makeString(idBegin, p);
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111 // Get arguments.
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112 auto macroArgs = scanArguments(p, textEnd);
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113 // TODO: still expand macro if no closing bracket was found?
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114 if (p == textEnd)
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115 break; // No closing bracket found.
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116 assert(*p == ')');
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117 p++;
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118 macroEnd = p;
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119
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120 auto macro_ = table.search(macroName);
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121 if (macro_)
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122 { // Ignore recursive macro if:
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123 if (macro_.callLevel != 0 &&
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124 (macroArgs.length == 0 || // Macro has no arguments.
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125 args.length && args[0] == macroArgs[0]) // arg0 == macroArg0.
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126 )
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127 continue;
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128 macro_.callLevel++;
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129 auto expandedText = expandArguments(macro_.text, macroArgs);
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130 result ~= expandMacros(table, expandedText, macroArgs);
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131 macro_.callLevel--;
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132 }
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133 continue;
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134 }
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135 }
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136 p++;
5dd17d4568ce Wrote code for expandMacros().
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parents: 722
diff changeset
137 }
724
0b8a6e876b6d Added scanArguments() and expandArguments() to dil.doc.Macro.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents: 723
diff changeset
138 if (macroEnd < textEnd)
0b8a6e876b6d Added scanArguments() and expandArguments() to dil.doc.Macro.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents: 723
diff changeset
139 result ~= makeString(macroEnd, textEnd);
722
ceaac6a24258 Added isUnicodeAlpha() for DDocParser and MacroParser.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents: 718
diff changeset
140 return result;
ceaac6a24258 Added isUnicodeAlpha() for DDocParser and MacroParser.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents: 718
diff changeset
141 }
ceaac6a24258 Added isUnicodeAlpha() for DDocParser and MacroParser.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents: 718
diff changeset
142
724
0b8a6e876b6d Added scanArguments() and expandArguments() to dil.doc.Macro.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents: 723
diff changeset
143 /// Scans until the closing ')' is found.
0b8a6e876b6d Added scanArguments() and expandArguments() to dil.doc.Macro.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents: 723
diff changeset
144 /// Returns [$0, $1, $2 ...].
0b8a6e876b6d Added scanArguments() and expandArguments() to dil.doc.Macro.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents: 723
diff changeset
145 char[][] scanArguments(ref char* p, char* textEnd)
725
84291c0a9e13 Added member callLevel to class Macro.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents: 724
diff changeset
146 out(args) { assert(args.length != 1); }
84291c0a9e13 Added member callLevel to class Macro.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents: 724
diff changeset
147 body
724
0b8a6e876b6d Added scanArguments() and expandArguments() to dil.doc.Macro.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents: 723
diff changeset
148 {
0b8a6e876b6d Added scanArguments() and expandArguments() to dil.doc.Macro.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents: 723
diff changeset
149 // D specs: "The argument text can contain nested parentheses,
0b8a6e876b6d Added scanArguments() and expandArguments() to dil.doc.Macro.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents: 723
diff changeset
150 // "" or '' strings, comments, or tags."
0b8a6e876b6d Added scanArguments() and expandArguments() to dil.doc.Macro.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents: 723
diff changeset
151 uint level = 1; // Nesting level of the parentheses.
0b8a6e876b6d Added scanArguments() and expandArguments() to dil.doc.Macro.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents: 723
diff changeset
152 char[][] args;
0b8a6e876b6d Added scanArguments() and expandArguments() to dil.doc.Macro.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents: 723
diff changeset
153
0b8a6e876b6d Added scanArguments() and expandArguments() to dil.doc.Macro.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents: 723
diff changeset
154 // Skip leading spaces.
0b8a6e876b6d Added scanArguments() and expandArguments() to dil.doc.Macro.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents: 723
diff changeset
155 while (p < textEnd && isspace(*p))
0b8a6e876b6d Added scanArguments() and expandArguments() to dil.doc.Macro.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents: 723
diff changeset
156 p++;
0b8a6e876b6d Added scanArguments() and expandArguments() to dil.doc.Macro.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents: 723
diff changeset
157
0b8a6e876b6d Added scanArguments() and expandArguments() to dil.doc.Macro.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents: 723
diff changeset
158 char* arg0Begin = p; // Whole argument list.
0b8a6e876b6d Added scanArguments() and expandArguments() to dil.doc.Macro.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents: 723
diff changeset
159 char* argBegin = p;
0b8a6e876b6d Added scanArguments() and expandArguments() to dil.doc.Macro.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents: 723
diff changeset
160 Loop:
0b8a6e876b6d Added scanArguments() and expandArguments() to dil.doc.Macro.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents: 723
diff changeset
161 while (p < textEnd)
0b8a6e876b6d Added scanArguments() and expandArguments() to dil.doc.Macro.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents: 723
diff changeset
162 {
0b8a6e876b6d Added scanArguments() and expandArguments() to dil.doc.Macro.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents: 723
diff changeset
163 switch (*p)
0b8a6e876b6d Added scanArguments() and expandArguments() to dil.doc.Macro.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents: 723
diff changeset
164 {
0b8a6e876b6d Added scanArguments() and expandArguments() to dil.doc.Macro.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents: 723
diff changeset
165 case ',':
731
ca7607226caa Added new module cmd.DDoc.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents: 727
diff changeset
166 if (level != 1) // Ignore comma if inside ().
ca7607226caa Added new module cmd.DDoc.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents: 727
diff changeset
167 break;
724
0b8a6e876b6d Added scanArguments() and expandArguments() to dil.doc.Macro.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents: 723
diff changeset
168 // Add a new argument.
0b8a6e876b6d Added scanArguments() and expandArguments() to dil.doc.Macro.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents: 723
diff changeset
169 args ~= makeString(argBegin, p);
0b8a6e876b6d Added scanArguments() and expandArguments() to dil.doc.Macro.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents: 723
diff changeset
170 while (++p < textEnd && isspace(*p))
0b8a6e876b6d Added scanArguments() and expandArguments() to dil.doc.Macro.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents: 723
diff changeset
171 {}
0b8a6e876b6d Added scanArguments() and expandArguments() to dil.doc.Macro.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents: 723
diff changeset
172 argBegin = p;
0b8a6e876b6d Added scanArguments() and expandArguments() to dil.doc.Macro.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents: 723
diff changeset
173 continue;
0b8a6e876b6d Added scanArguments() and expandArguments() to dil.doc.Macro.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents: 723
diff changeset
174 case '(':
0b8a6e876b6d Added scanArguments() and expandArguments() to dil.doc.Macro.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents: 723
diff changeset
175 level++;
0b8a6e876b6d Added scanArguments() and expandArguments() to dil.doc.Macro.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents: 723
diff changeset
176 break;
0b8a6e876b6d Added scanArguments() and expandArguments() to dil.doc.Macro.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents: 723
diff changeset
177 case ')':
0b8a6e876b6d Added scanArguments() and expandArguments() to dil.doc.Macro.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents: 723
diff changeset
178 if (--level == 0)
0b8a6e876b6d Added scanArguments() and expandArguments() to dil.doc.Macro.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents: 723
diff changeset
179 break Loop;
0b8a6e876b6d Added scanArguments() and expandArguments() to dil.doc.Macro.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents: 723
diff changeset
180 break;
0b8a6e876b6d Added scanArguments() and expandArguments() to dil.doc.Macro.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents: 723
diff changeset
181 case '"', '\'':
0b8a6e876b6d Added scanArguments() and expandArguments() to dil.doc.Macro.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents: 723
diff changeset
182 auto c = *p;
0b8a6e876b6d Added scanArguments() and expandArguments() to dil.doc.Macro.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents: 723
diff changeset
183 while (++p < textEnd && *p != c) // Scan to next " or '.
0b8a6e876b6d Added scanArguments() and expandArguments() to dil.doc.Macro.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents: 723
diff changeset
184 {}
0b8a6e876b6d Added scanArguments() and expandArguments() to dil.doc.Macro.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents: 723
diff changeset
185 assert(*p == c || p == textEnd);
0b8a6e876b6d Added scanArguments() and expandArguments() to dil.doc.Macro.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents: 723
diff changeset
186 if (p == textEnd)
0b8a6e876b6d Added scanArguments() and expandArguments() to dil.doc.Macro.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents: 723
diff changeset
187 break Loop;
0b8a6e876b6d Added scanArguments() and expandArguments() to dil.doc.Macro.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents: 723
diff changeset
188 break;
0b8a6e876b6d Added scanArguments() and expandArguments() to dil.doc.Macro.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents: 723
diff changeset
189 case '<':
0b8a6e876b6d Added scanArguments() and expandArguments() to dil.doc.Macro.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents: 723
diff changeset
190 if (p+3 < textEnd && p[1] == '!' && p[2] == '-' && p[3] == '-') // <!--
0b8a6e876b6d Added scanArguments() and expandArguments() to dil.doc.Macro.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents: 723
diff changeset
191 {
0b8a6e876b6d Added scanArguments() and expandArguments() to dil.doc.Macro.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents: 723
diff changeset
192 p += 3;
0b8a6e876b6d Added scanArguments() and expandArguments() to dil.doc.Macro.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents: 723
diff changeset
193 // Scan to closing "-->".
0b8a6e876b6d Added scanArguments() and expandArguments() to dil.doc.Macro.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents: 723
diff changeset
194 while (++p + 2 < textEnd)
0b8a6e876b6d Added scanArguments() and expandArguments() to dil.doc.Macro.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents: 723
diff changeset
195 if (*p == '-' && p[1] == '-' && p[2] == '>')
0b8a6e876b6d Added scanArguments() and expandArguments() to dil.doc.Macro.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents: 723
diff changeset
196 {
0b8a6e876b6d Added scanArguments() and expandArguments() to dil.doc.Macro.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents: 723
diff changeset
197 p += 3;
0b8a6e876b6d Added scanArguments() and expandArguments() to dil.doc.Macro.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents: 723
diff changeset
198 continue Loop;
0b8a6e876b6d Added scanArguments() and expandArguments() to dil.doc.Macro.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents: 723
diff changeset
199 }
0b8a6e876b6d Added scanArguments() and expandArguments() to dil.doc.Macro.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents: 723
diff changeset
200 p = textEnd; // p += 2;
0b8a6e876b6d Added scanArguments() and expandArguments() to dil.doc.Macro.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents: 723
diff changeset
201 } // <tag ...> or </tag>
0b8a6e876b6d Added scanArguments() and expandArguments() to dil.doc.Macro.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents: 723
diff changeset
202 else if (p+1 < textEnd && (isalpha(p[1]) || p[1] == '/'))
0b8a6e876b6d Added scanArguments() and expandArguments() to dil.doc.Macro.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents: 723
diff changeset
203 while (++p < textEnd && *p != '>') // Skip to closing '>'.
0b8a6e876b6d Added scanArguments() and expandArguments() to dil.doc.Macro.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents: 723
diff changeset
204 {}
0b8a6e876b6d Added scanArguments() and expandArguments() to dil.doc.Macro.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents: 723
diff changeset
205 if (p == textEnd)
0b8a6e876b6d Added scanArguments() and expandArguments() to dil.doc.Macro.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents: 723
diff changeset
206 break Loop;
0b8a6e876b6d Added scanArguments() and expandArguments() to dil.doc.Macro.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents: 723
diff changeset
207 break;
0b8a6e876b6d Added scanArguments() and expandArguments() to dil.doc.Macro.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents: 723
diff changeset
208 default:
0b8a6e876b6d Added scanArguments() and expandArguments() to dil.doc.Macro.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents: 723
diff changeset
209 }
0b8a6e876b6d Added scanArguments() and expandArguments() to dil.doc.Macro.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents: 723
diff changeset
210 p++;
0b8a6e876b6d Added scanArguments() and expandArguments() to dil.doc.Macro.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents: 723
diff changeset
211 }
0b8a6e876b6d Added scanArguments() and expandArguments() to dil.doc.Macro.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents: 723
diff changeset
212 assert(*p == ')' && level == 0 || p == textEnd);
0b8a6e876b6d Added scanArguments() and expandArguments() to dil.doc.Macro.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents: 723
diff changeset
213 if (arg0Begin is p)
0b8a6e876b6d Added scanArguments() and expandArguments() to dil.doc.Macro.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents: 723
diff changeset
214 return null;
0b8a6e876b6d Added scanArguments() and expandArguments() to dil.doc.Macro.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents: 723
diff changeset
215 // arg0 spans the whole argument list.
0b8a6e876b6d Added scanArguments() and expandArguments() to dil.doc.Macro.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents: 723
diff changeset
216 auto arg0 = makeString(arg0Begin, p);
0b8a6e876b6d Added scanArguments() and expandArguments() to dil.doc.Macro.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents: 723
diff changeset
217 // Add last argument.
0b8a6e876b6d Added scanArguments() and expandArguments() to dil.doc.Macro.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents: 723
diff changeset
218 args ~= makeString(argBegin, p);
0b8a6e876b6d Added scanArguments() and expandArguments() to dil.doc.Macro.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents: 723
diff changeset
219 return arg0 ~ args;
0b8a6e876b6d Added scanArguments() and expandArguments() to dil.doc.Macro.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents: 723
diff changeset
220 }
0b8a6e876b6d Added scanArguments() and expandArguments() to dil.doc.Macro.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents: 723
diff changeset
221
0b8a6e876b6d Added scanArguments() and expandArguments() to dil.doc.Macro.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents: 723
diff changeset
222 /// Expands "$+", "$0" - "$9" with args[n] in text.
0b8a6e876b6d Added scanArguments() and expandArguments() to dil.doc.Macro.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents: 723
diff changeset
223 /// Params:
0b8a6e876b6d Added scanArguments() and expandArguments() to dil.doc.Macro.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents: 723
diff changeset
224 /// text = the text to scan for argument placeholders.
0b8a6e876b6d Added scanArguments() and expandArguments() to dil.doc.Macro.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents: 723
diff changeset
225 /// args = the first element, args[0], is the whole argument string and
0b8a6e876b6d Added scanArguments() and expandArguments() to dil.doc.Macro.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents: 723
diff changeset
226 /// the following elements are slices into it.
0b8a6e876b6d Added scanArguments() and expandArguments() to dil.doc.Macro.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents: 723
diff changeset
227 /// The array is empty if there are no arguments.
0b8a6e876b6d Added scanArguments() and expandArguments() to dil.doc.Macro.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents: 723
diff changeset
228 char[] expandArguments(char[] text, char[][] args)
0b8a6e876b6d Added scanArguments() and expandArguments() to dil.doc.Macro.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents: 723
diff changeset
229 in { assert(args.length != 1, "zero or more than 1 args expected"); }
0b8a6e876b6d Added scanArguments() and expandArguments() to dil.doc.Macro.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents: 723
diff changeset
230 body
0b8a6e876b6d Added scanArguments() and expandArguments() to dil.doc.Macro.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents: 723
diff changeset
231 {
0b8a6e876b6d Added scanArguments() and expandArguments() to dil.doc.Macro.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents: 723
diff changeset
232 char[] result;
0b8a6e876b6d Added scanArguments() and expandArguments() to dil.doc.Macro.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents: 723
diff changeset
233 char* p = text.ptr;
0b8a6e876b6d Added scanArguments() and expandArguments() to dil.doc.Macro.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents: 723
diff changeset
234 char* textEnd = p + text.length;
0b8a6e876b6d Added scanArguments() and expandArguments() to dil.doc.Macro.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents: 723
diff changeset
235 char* placeholderEnd = p;
0b8a6e876b6d Added scanArguments() and expandArguments() to dil.doc.Macro.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents: 723
diff changeset
236
0b8a6e876b6d Added scanArguments() and expandArguments() to dil.doc.Macro.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents: 723
diff changeset
237 while (p+1 < textEnd)
0b8a6e876b6d Added scanArguments() and expandArguments() to dil.doc.Macro.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents: 723
diff changeset
238 {
0b8a6e876b6d Added scanArguments() and expandArguments() to dil.doc.Macro.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents: 723
diff changeset
239 if (*p == '$' && (p[1] == '+' || isdigit(p[1])))
0b8a6e876b6d Added scanArguments() and expandArguments() to dil.doc.Macro.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents: 723
diff changeset
240 {
0b8a6e876b6d Added scanArguments() and expandArguments() to dil.doc.Macro.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents: 723
diff changeset
241 // Copy string between argument placeholders.
0b8a6e876b6d Added scanArguments() and expandArguments() to dil.doc.Macro.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents: 723
diff changeset
242 if (placeholderEnd !is p)
0b8a6e876b6d Added scanArguments() and expandArguments() to dil.doc.Macro.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents: 723
diff changeset
243 result ~= makeString(placeholderEnd, p);
0b8a6e876b6d Added scanArguments() and expandArguments() to dil.doc.Macro.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents: 723
diff changeset
244 p++;
0b8a6e876b6d Added scanArguments() and expandArguments() to dil.doc.Macro.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents: 723
diff changeset
245 placeholderEnd = p + 1; // Set new argument end.
0b8a6e876b6d Added scanArguments() and expandArguments() to dil.doc.Macro.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents: 723
diff changeset
246
0b8a6e876b6d Added scanArguments() and expandArguments() to dil.doc.Macro.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents: 723
diff changeset
247 if (args.length == 0)
0b8a6e876b6d Added scanArguments() and expandArguments() to dil.doc.Macro.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents: 723
diff changeset
248 continue;
0b8a6e876b6d Added scanArguments() and expandArguments() to dil.doc.Macro.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents: 723
diff changeset
249
0b8a6e876b6d Added scanArguments() and expandArguments() to dil.doc.Macro.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents: 723
diff changeset
250 if (*p == '+')
0b8a6e876b6d Added scanArguments() and expandArguments() to dil.doc.Macro.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents: 723
diff changeset
251 { // $+ = $2 to $n
725
84291c0a9e13 Added member callLevel to class Macro.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents: 724
diff changeset
252 if (args.length > 2)
724
0b8a6e876b6d Added scanArguments() and expandArguments() to dil.doc.Macro.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents: 723
diff changeset
253 result ~= makeString(args[2].ptr, args[0].ptr + args[0].length);
0b8a6e876b6d Added scanArguments() and expandArguments() to dil.doc.Macro.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents: 723
diff changeset
254 }
0b8a6e876b6d Added scanArguments() and expandArguments() to dil.doc.Macro.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents: 723
diff changeset
255 else
0b8a6e876b6d Added scanArguments() and expandArguments() to dil.doc.Macro.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents: 723
diff changeset
256 { // 0 - 9
0b8a6e876b6d Added scanArguments() and expandArguments() to dil.doc.Macro.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents: 723
diff changeset
257 uint nthArg = *p - '0';
0b8a6e876b6d Added scanArguments() and expandArguments() to dil.doc.Macro.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents: 723
diff changeset
258 if (nthArg < args.length)
0b8a6e876b6d Added scanArguments() and expandArguments() to dil.doc.Macro.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents: 723
diff changeset
259 result ~= args[nthArg];
0b8a6e876b6d Added scanArguments() and expandArguments() to dil.doc.Macro.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents: 723
diff changeset
260 }
0b8a6e876b6d Added scanArguments() and expandArguments() to dil.doc.Macro.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents: 723
diff changeset
261 }
0b8a6e876b6d Added scanArguments() and expandArguments() to dil.doc.Macro.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents: 723
diff changeset
262 p++;
0b8a6e876b6d Added scanArguments() and expandArguments() to dil.doc.Macro.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents: 723
diff changeset
263 }
0b8a6e876b6d Added scanArguments() and expandArguments() to dil.doc.Macro.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents: 723
diff changeset
264 if (placeholderEnd < textEnd)
0b8a6e876b6d Added scanArguments() and expandArguments() to dil.doc.Macro.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents: 723
diff changeset
265 result ~= makeString(placeholderEnd, textEnd);
0b8a6e876b6d Added scanArguments() and expandArguments() to dil.doc.Macro.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents: 723
diff changeset
266 return result;
0b8a6e876b6d Added scanArguments() and expandArguments() to dil.doc.Macro.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents: 723
diff changeset
267 }