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1 module dmd.FileName;
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2
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3 import dmd.String;
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4 import dmd.Array;
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5 import dmd.OutBuffer;
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6 import dmd.File;
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7
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4
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8 import core.memory;
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2
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9
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4
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10 import core.stdc.stdlib : alloca;
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0
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11 import core.stdc.string : memcpy, strlen;
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12 import core.stdc.ctype : isspace;
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13
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14 import std.contracts : assumeUnique;
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15 import std.string : cmp, icmp;
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16 import std.file : mkdirRecurse;
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17
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18 import core.sys.windows.windows;
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19
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20 class FileName : String
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21 {
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22 this(string str)
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23 {
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24 super(str);
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25 }
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26
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27 this(string path, string name)
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28 {
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29 super(combine(path, name));
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30 }
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31
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32 hash_t hashCode()
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33 {
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34 version (_WIN32) {
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35 // We need a different hashCode because it must be case-insensitive
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36 size_t len = str.length;
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37 hash_t hash = 0;
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38 ubyte* s = cast(ubyte*)str.ptr;
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39
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40 for (;;)
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41 {
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42 switch (len)
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43 {
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44 case 0:
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45 return hash;
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46
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47 case 1:
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48 hash *= 37;
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49 hash += *(cast(ubyte*)s) | 0x20;
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50 return hash;
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51
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52 case 2:
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53 hash *= 37;
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54 hash += *(cast(ushort*)s) | 0x2020;
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55 return hash;
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56
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57 case 3:
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58 hash *= 37;
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59 hash += (*cast(ushort*)s) << 8 +
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60 ((cast(ubyte*)s)[2]) | 0x202020;
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61 break;
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62
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63 default:
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64 hash *= 37;
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65 hash += (*cast(int*)s) | 0x20202020;
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66 s += 4;
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67 len -= 4;
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68 break;
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69 }
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70 }
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71 } else {
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72 // darwin HFS is case insensitive, though...
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73 return super.hashCode();
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74 }
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75 }
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76
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77 bool opEquals(Object obj)
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78 {
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79 return opCmp(obj) == 0;
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80 }
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81
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82 static int equals(string name1, string name2)
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83 {
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84 return compare(name1, name2) == 0;
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85 }
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86
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87 int opCmp(Object obj)
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88 {
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89 return compare(str, (cast(FileName)obj).str);
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90 }
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91
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92 static int compare(string name1, string name2)
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93 {
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94 version (_WIN32) {
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95 return icmp(name1, name2);
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96 } else {
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97 return cmp(name1, name2);
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98 }
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99 }
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100
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101 static bool absolute(string name)
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102 {
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103 version (_WIN32) {
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104 return (*name == '\\') ||
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105 (*name == '/') ||
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106 (*name && name[1] == ':');
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107 } else version (POSIX) {
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108 return (*name == '/');
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109 } else {
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110 static assert(false);
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111 }
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112 }
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113
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114 /********************************
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115 * Return filename extension (read-only).
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116 * Points past '.' of extension.
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117 * If there isn't one, return NULL.
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118 */
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119 static string ext(string str)
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120 {
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121 foreach_reverse (i, c; str)
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122 {
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123 switch (c)
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124 {
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125 case '.':
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126 return str[i+1..$];
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127 version (POSIX) {
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128 case '/':
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129 return null;
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130 }
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131 version (_WIN32) {
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132 case '\\':
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133 case ':':
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134 case '/':
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135 return null;
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136
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137 } default:
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138 break;
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139 }
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140 }
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141
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142 return null;
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143 }
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144
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145 string ext()
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146 {
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147 return ext(str);
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148 }
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149
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150 /********************************
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151 * Return filename with extension removed.
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152 */
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153
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154 static string removeExt(string str)
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155 {
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156 string e = ext(str);
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157 if (e !is null)
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158 {
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159 size_t len = (e.ptr - str.ptr - 1);
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160 return str[0..len];
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161 }
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162
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163 return str;
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164 }
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165
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166 /********************************
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167 * Return filename name excluding path (read-only).
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168 */
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169
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170 static string name(string str)
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171 {
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172 foreach_reverse(i, c; str)
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173 {
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174 switch (c)
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175 {
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176 version (POSIX) {
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177 case '/':
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178 return str[i+1..$];
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179 }
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180 version (_WIN32) {
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181 case '/':
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182 case '\\':
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183 return str[i+1..$];
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184 case ':':
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185 /* The ':' is a drive letter only if it is the second
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186 * character or the last character,
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187 * otherwise it is an ADS (Alternate Data Stream) separator.
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188 * Consider ADS separators as part of the file name.
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189 */
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190 if (i == 1 || i == str.length - 1)
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191 return str[i+1..$];
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192 }
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193 default:
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194 break;
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195 }
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196 }
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197
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198 return str;
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199 }
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200
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201 string name()
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202 {
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203 return name(str);
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204 }
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205
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206 /**************************************
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207 * Return path portion of str.
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208 * Path will does not include trailing path separator.
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209 */
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210
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211 static string path(string str)
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212 {
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213 auto n = name(str).ptr;
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214
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215 if (n > str.ptr)
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216 {
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217 auto p = n - 1;
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218 version (POSIX) {
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219 if (*p == '/')
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220 n--;
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221 } else version (_WIN32) {
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222 if (*p == '\\' || *p == '/')
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223 n--;
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224 } else {
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225 static assert(false);
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226 }
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227 }
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228
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229 size_t pathlen = n - str.ptr;
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230 return str[0..pathlen];
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231 }
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232
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233 /**************************************
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234 * Replace filename portion of path.
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235 */
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236
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237 static string replaceName(string path, string name)
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238 {
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239 if (absolute(name))
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240 return name;
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241
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242 string n = FileName.name(path);
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243 if (n is path)
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244 return name;
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245
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246 size_t pathlen = n.ptr - path.ptr;
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247 size_t namelen = name.length;
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248
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249 char* f = cast(char*)GC.malloc(pathlen + 1 + namelen + 1);
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250 memcpy(f, path.ptr, pathlen);
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251 version (POSIX) {
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252 if (path[pathlen - 1] != '/')
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253 {
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254 f[pathlen] = '/';
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255 pathlen++;
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256 }
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257 } else version (_WIN32) {
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258 if (path[pathlen - 1] != '\\' &&
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259 path[pathlen - 1] != '/' &&
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260 path[pathlen - 1] != ':')
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261 {
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262 f[pathlen] = '\\';
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263 pathlen++;
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264 }
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265 } else {
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266 static assert(false);
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267 }
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268 memcpy(f + pathlen, name.ptr, namelen + 1);
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269
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270 return assumeUnique(f[0..pathlen+namelen]);
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271 }
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272
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273 static string combine(string path, string name)
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274 {
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275 size_t pathlen;
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276 size_t namelen;
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277
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278 if (path.length == 0)
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279 return name;
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280
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281 pathlen = path.length;
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282 namelen = name.length;
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283
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2
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284 char* f = cast(char*)GC.malloc(pathlen + 1 + namelen + 1);
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0
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285
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286 memcpy(f, path.ptr, pathlen);
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287
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288 version (POSIX) {
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289 if (path[pathlen - 1] != '/')
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290 {
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291 f[pathlen] = '/';
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292 pathlen++;
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293 }
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294 } else version (_WIN32) {
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295 if (path[pathlen - 1] != '\\' &&
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296 path[pathlen - 1] != '/' &&
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297 path[pathlen - 1] != ':')
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298 {
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299 f[pathlen] = '\\';
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300 pathlen++;
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301 }
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302 } else {
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303 static assert(0);
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304 }
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305 memcpy(f + pathlen, name.ptr, namelen + 1);
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306
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307 return assumeUnique(f[0..pathlen+namelen]);
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308 }
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309
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310 static string[] splitPath(const(char)[] spath)
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311 {
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312 char c = 0; // unnecessary initializer is for VC /W4
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313
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314 scope OutBuffer buf = new OutBuffer();
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315 string[] array;
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316
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317 if (spath !is null)
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318 {
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319 const(char)* p = spath.ptr;
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320 int len = spath.length;
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321 do
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322 {
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323 char instring = 0;
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324
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325 while (len > 0 && isspace(*p)) { // skip leading whitespace
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326 p++;
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327 --len;
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328 }
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329
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330 buf.reserve(len + 1); // guess size of path
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331 for (; len; p++, len--)
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332 {
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333 c = *p;
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334 switch (c)
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335 {
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336 case '"':
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337 instring ^= 1; // toggle inside/outside of string
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338 continue;
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339
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340 version (MACINTOSH) {
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341 case ',':
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342 }
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343 version (_WIN32) {
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344 case ';':
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345 }
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346 version (POSIX) {
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347 case ':':
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348 }
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349 p++;
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350 break; // note that ; cannot appear as part
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351 // of a path, quotes won't protect it
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352
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353 case 0x1A: // ^Z means end of file
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354 //case 0:
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355 break;
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356
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357 case '\r':
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358 continue; // ignore carriage returns
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359
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360 version (POSIX) {
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361 case '~':
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362 buf.writestring(getenv("HOME"));
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363 continue;
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364 }
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365
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366 version (disabled) {
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367 case ' ':
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368 case '\t': // tabs in filenames?
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369 if (!instring) // if not in string
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370 break; // treat as end of path
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371 }
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372 default:
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373 buf.writeByte(c);
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374 continue;
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375 }
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376 break;
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377 }
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378 if (buf.offset) // if path is not empty
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379 {
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380 //buf.writeByte(0); // to asciiz
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381 array ~= buf.extractString();
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382 }
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383 } while (len > 0);
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384 }
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385
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386 return array;
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387 }
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388
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389 static FileName defaultExt(string name, string ext)
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390 {
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391 string e = FileName.ext(name);
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392 if (e !is null) {
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393 // if already has an extension
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394 return new FileName(name);
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395 }
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396
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397 size_t len = name.length;
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398 size_t extlen = ext.length;
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2
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399 char* s = cast(char*)GC.malloc(len + 1 + extlen + 1);
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0
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400 memcpy(s, name.ptr, len);
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401 s[len] = '.';
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402 memcpy(s + len + 1, ext.ptr, extlen + 1);
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403
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404 return new FileName(assumeUnique(s[0..len+1+extlen]));
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405 }
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406
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407 static FileName forceExt(string name, string ext)
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408 {
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409 string e = FileName.ext(name);
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410 if (e !is null) // if already has an extension
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411 {
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412 size_t len = e.ptr - name.ptr;
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413 size_t extlen = ext.length;
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414
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2
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415 char* s = cast(char*)GC.malloc(len + extlen + 1);
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0
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416 memcpy(s, name.ptr, len);
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417 memcpy(s + len, ext.ptr, extlen + 1);
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418 return new FileName(assumeUnique(s[0..len+extlen]));
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419 }
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420
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421 return defaultExt(name, ext); // doesn't have one
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422 }
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423
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424 /******************************
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425 * Return true if extensions match.
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426 */
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427
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428 bool equalsExt(string ext)
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429 {
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430 string e = FileName.ext();
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431 if (e.length == 0 && ext.length == 0)
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432 return true;
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433
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434 if (e.length == 0 || ext.length == 0)
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435 return false;
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436
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437 version (POSIX) {
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438 return cmp(e,ext) == 0;
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439 } else version (_WIN32) {
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440 return icmp(e,ext) == 0;
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441 } else {
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442 static assert(0);
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443 }
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444 }
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445
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446 /*************************************
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447 * Copy file from this to to.
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448 */
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449
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450 void CopyTo(FileName to)
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451 {
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452 scope File file = new File(this);
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453
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454 version (_WIN32) {
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2
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455 file.touchtime = GC.malloc(WIN32_FIND_DATA.sizeof); // keep same file time
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0
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456 } else version (POSIX) {
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2
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457 file.touchtime = GC.malloc(stat.sizeof); // keep same file time
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0
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458 } else {
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459 static assert(0);
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460 }
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461 file.readv();
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462 file.name = to;
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463 file.writev();
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464 }
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465
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466 /*************************************
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467 * Search Path for file.
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468 * Input:
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469 * cwd if true, search current directory before searching path
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470 */
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471
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472 static string searchPath(Array path, string name, bool cwd)
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473 {
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474 if (absolute(name)) {
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475 return exists(name) ? name : null;
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476 }
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477
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478 if (cwd) {
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|
479 if (exists(name)) {
|
|
|
480 return name;
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|
|
481 }
|
|
|
482 }
|
|
|
483
|
|
|
484 if (path !is null) {
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|
|
485 foreach (i; 0..path.dim)
|
|
|
486 {
|
|
|
487 String p = cast(String)path.data[i];
|
|
|
488 string n = combine(p.str, name);
|
|
|
489
|
|
|
490 if (exists(n))
|
|
|
491 return n;
|
|
|
492 }
|
|
|
493 }
|
|
|
494
|
|
|
495 return null;
|
|
|
496 }
|
|
|
497
|
|
|
498 static int exists(string name)
|
|
|
499 {
|
|
|
500 version (POSIX) {
|
|
|
501 stat st;
|
|
|
502
|
|
|
503 if (stat(name, &st) < 0)
|
|
|
504 return 0;
|
|
|
505 if (S_ISDIR(st.st_mode))
|
|
|
506 return 2;
|
|
|
507 return 1;
|
|
|
508 } else version (_WIN32) {
|
|
|
509 HANDLE h = CreateFileA(toStringz(name), GENERIC_READ, FILE_SHARE_READ, null, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL | FILE_FLAG_SEQUENTIAL_SCAN, HANDLE.init); ///
|
|
|
510 if (h == INVALID_HANDLE_VALUE) {
|
|
|
511 return 0;
|
|
|
512 }
|
|
|
513
|
|
|
514 CloseHandle(h);
|
|
|
515
|
|
|
516 DWORD dw = GetFileAttributesA(name.ptr); /// CARE!
|
|
|
517 if (dw == -1L) {
|
|
|
518 assert(false);
|
|
|
519 return 0;
|
|
|
520 } else if (dw & FILE_ATTRIBUTE_DIRECTORY) {
|
|
|
521 return 2;
|
|
|
522 } else {
|
|
|
523 return 1;
|
|
|
524 }
|
|
|
525 } else {
|
|
|
526 static assert(0);
|
|
|
527 }
|
|
|
528 }
|
|
|
529
|
|
|
530 static void ensurePathExists(string path)
|
|
|
531 {
|
|
|
532 try {
|
|
|
533 mkdirRecurse(path);
|
|
|
534 } catch {
|
|
|
535 }
|
|
|
536 }
|
|
|
537 } |
