1 | // This file is a part of Framsticks SDK. http://www.framsticks.com/ |
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2 | // Copyright (C) 1999-2015 Maciej Komosinski and Szymon Ulatowski. |
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3 | // See LICENSE.txt for details. |
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4 | |
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5 | #include "sstringutils.h" |
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6 | #include <frams/virtfile/virtfile.h> |
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7 | #include <common/framsg.h> |
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8 | #include <common/nonstd.h> |
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9 | |
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10 | int loadSString(const char* filename, SString& s, const char* framsgmodule, const char* error) |
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11 | { |
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12 | VirtFILE *f; |
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13 | int ret = 0; |
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14 | if (f = Vfopen(filename, FOPEN_READ_BINARY)) |
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15 | { |
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16 | loadSString(f, s); |
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17 | ret = 1; |
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18 | fclose(f); |
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19 | } |
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20 | else if (framsgmodule) |
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21 | FMprintf(framsgmodule, "loadSString", FMLV_WARN, error ? error : "can't open file \"%s\"", filename); |
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22 | return ret; |
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23 | } |
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24 | |
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25 | void loadSString(VirtFILE *f, SString& s) |
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26 | { |
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27 | char buf[1024]; |
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28 | int len; |
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29 | while (!f->Veof()) |
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30 | { |
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31 | len = fread(buf, 1, sizeof(buf), f); |
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32 | s.append(buf, len); |
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33 | } |
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34 | removeCR(s); |
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35 | } |
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36 | |
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37 | //load single line, discarding any \r or \n found at the end, return false if nothing could be loaded (error or eof) |
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38 | bool loadSStringLine(VirtFILE* f, SString& s) |
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39 | { |
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40 | char buf[100]; |
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41 | bool eolfound = false; |
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42 | bool ret = false; |
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43 | s = SString::empty(); |
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44 | while (!eolfound) |
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45 | { |
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46 | char *r = fgets(buf, sizeof(buf), f); |
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47 | if (r == NULL) break; |
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48 | ret = true; |
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49 | int d = strlen(r); |
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50 | if (d > 0) |
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51 | { |
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52 | if (r[d - 1] == '\n') { d--; eolfound = true; } |
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53 | if (d > 0) if (r[d - 1] == '\r') d--; |
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54 | s += SString(r, d); |
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55 | } |
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56 | } |
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57 | return ret; |
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58 | } |
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59 | |
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60 | ////////////////////////// |
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61 | |
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62 | /** "x~xx~xxx" -> "x\~xx\~xxx" */ |
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63 | int quoteTilde(SString &target) |
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64 | { |
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65 | const char* x = target; |
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66 | SString tmp; |
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67 | char *f; |
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68 | while (1) |
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69 | { |
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70 | f = strchr((char*)x, '~'); |
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71 | if (f) |
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72 | { |
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73 | tmp.append(x, f - x); |
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74 | tmp += "\\~"; |
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75 | x = f + 1; |
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76 | } |
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77 | else |
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78 | { |
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79 | if (tmp.len() == 0) return 0; // nothing was changed! |
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80 | tmp += x; |
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81 | target = tmp; |
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82 | return 1; |
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83 | } |
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84 | } |
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85 | } |
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86 | |
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87 | /** "x\~xx\~xxx" -> "x~xx~xxx" */ |
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88 | int unquoteTilde(SString &target) |
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89 | { |
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90 | const char* x = target; |
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91 | SString tmp; |
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92 | char *f; |
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93 | while (1) |
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94 | { |
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95 | f = strchr((char*)x, '\\'); |
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96 | if (f) |
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97 | { |
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98 | tmp.append(x, f - x); |
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99 | if (f[1] == '~') |
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100 | { |
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101 | tmp += '~'; |
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102 | x = f + 2; |
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103 | } |
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104 | else |
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105 | { |
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106 | tmp += "\\"; |
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107 | x = f + 1; |
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108 | } |
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109 | } |
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110 | else |
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111 | { |
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112 | if (tmp.len() == 0) return 0; // nothing was changed! |
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113 | tmp += x; |
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114 | target = tmp; |
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115 | return 1; |
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116 | } |
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117 | } |
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118 | } |
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119 | |
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120 | ///////////////// |
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121 | |
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122 | bool strContainsOneOf(const char* str, const char* chars) |
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123 | { |
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124 | while (*str) |
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125 | { |
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126 | if (strchr(chars, *str)) return 1; |
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127 | str++; |
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128 | } |
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129 | return 0; |
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130 | } |
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131 | |
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132 | ////////////// |
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133 | |
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134 | bool sstringQuote(SString& target) |
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135 | { |
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136 | const char* x = target; |
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137 | bool changed = 0; |
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138 | SString tmp; |
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139 | tmp.memoryHint(target.len()); |
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140 | while (*x) |
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141 | { |
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142 | switch (*x) |
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143 | { |
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144 | case '\n': tmp += "\\n"; changed = 1; break; |
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145 | case '\r': tmp += "\\r"; changed = 1; break; |
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146 | case '\t': tmp += "\\t"; changed = 1; break; |
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147 | case '\"': tmp += "\\\""; changed = 1; break; |
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148 | case '\\': tmp += "\\\\"; changed = 1; break; |
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149 | default: tmp += *x; |
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150 | } |
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151 | x++; |
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152 | } |
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153 | if (changed) target = tmp; |
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154 | return changed; |
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155 | } |
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156 | |
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157 | const char* skipQuoteString(const char* txt, const char* limit) |
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158 | { |
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159 | while (*txt) |
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160 | { |
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161 | if (*txt == '\"') return txt; |
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162 | if (*txt == '\\') txt++; |
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163 | txt++; |
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164 | if (txt == limit) break; |
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165 | } |
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166 | return txt; |
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167 | } |
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168 | |
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169 | int sstringUnquote(SString &target) |
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170 | { |
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171 | const char* x = target; |
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172 | SString tmp; |
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173 | char *f; |
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174 | while (1) |
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175 | { |
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176 | f = strchr((char*)x, '\\'); |
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177 | if (f) |
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178 | { |
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179 | tmp.append(x, f - x); |
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180 | switch (f[1]) |
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181 | { |
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182 | case 'n': tmp += '\n'; break; |
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183 | case 'r': tmp += '\r'; break; |
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184 | case 't': tmp += '\t'; break; |
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185 | case '\"': tmp += '\"'; break; |
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186 | default: tmp += f[1]; |
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187 | } |
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188 | x = f + 2; |
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189 | } |
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190 | else |
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191 | { |
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192 | if (tmp.len() == 0) return 0; // nothing was changed! |
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193 | tmp += x; |
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194 | target = tmp; |
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195 | return 1; |
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196 | } |
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197 | } |
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198 | } |
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199 | |
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200 | int strFindField(const SString& txt, const SString& name, int &end) |
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201 | { |
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202 | const char* t = txt, *n; |
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203 | int pos = 0; |
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204 | while (1) |
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205 | { |
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206 | n = strchr(t + pos, ','); |
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207 | if ((!strncmp(t + pos, name, name.len())) && (t[pos + name.len()] == '=')) |
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208 | { |
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209 | if (n) end = n - t; else end = txt.len(); |
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210 | return pos; |
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211 | } |
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212 | if (n) pos = n - t + 1; else break; |
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213 | } |
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214 | return -1; |
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215 | } |
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216 | |
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217 | SString strGetField(const SString& txt, const SString& name) |
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218 | { |
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219 | int p, e; |
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220 | p = strFindField(txt, name, e); |
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221 | if (p < 0) return SString(); |
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222 | p += name.len() + 1; |
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223 | return SString(txt.substr(p, e - p)); |
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224 | } |
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225 | |
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226 | void strSetField(SString& txt, const SString& name, const SString& value) |
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227 | { |
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228 | int p, e; |
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229 | p = strFindField(txt, name, e); |
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230 | if (p < 0) |
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231 | { |
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232 | if (!value.len()) return; |
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233 | char *t = txt.directAppend(1 + name.len() + value.len()); |
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234 | char *b = t; |
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235 | if (txt.len()) *(t++) = ','; |
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236 | strcpy(t, name); t += name.len(); |
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237 | *(t++) = '='; |
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238 | strcpy(t, value); t += value.len(); |
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239 | txt.endAppend(t - b); |
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240 | } |
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241 | else |
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242 | { |
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243 | if (!value.len()) |
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244 | { |
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245 | if (p > 0) p--; else if (e < txt.len()) e++; |
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246 | char *t = txt.directWrite(0); |
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247 | memmove(t + p, t + e, txt.len() - e); |
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248 | txt.endWrite(txt.len() + value.len() - (e - p)); |
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249 | } |
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250 | else |
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251 | { |
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252 | p += name.len() + 1; |
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253 | char *t = txt.directWrite(txt.len() + value.len() - (e - p)); |
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254 | memmove(t + p + value.len(), t + e, txt.len() - e); |
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255 | memmove(t + p, value, value.len()); |
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256 | txt.endWrite(txt.len() + value.len() - (e - p)); |
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257 | } |
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258 | } |
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259 | } |
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260 | |
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261 | SString trim(SString& s) |
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262 | { |
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263 | const unsigned char*b = (const unsigned char*)(const char*)s; |
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264 | const unsigned char*e = b + s.len(); |
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265 | while ((b < e) && (*b <= ' ')) b++; |
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266 | while ((b < e) && (e[-1] <= ' ')) e--; |
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267 | if ((e - b) == s.len()) return s; |
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268 | SString newstring; |
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269 | char* t = newstring.directWrite(e - b); |
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270 | memmove(t, b, e - b); |
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271 | newstring.endWrite(e - b); |
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272 | return newstring; |
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273 | } |
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274 | |
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275 | bool removeCR(SString& s) |
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276 | { |
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277 | const char* p = (const char*)s; |
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278 | const char* cr = strchr(p, '\r'); |
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279 | if (!cr) return false; |
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280 | char* begin = s.directWrite(); |
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281 | char* src = begin + (cr - p), *dst = src; |
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282 | while (*src) |
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283 | if (*src == '\r') |
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284 | src++; |
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285 | else |
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286 | *(dst++) = *(src++); |
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287 | s.endWrite(dst - begin); |
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288 | return true; |
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289 | } |
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290 | |
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291 | bool matchWildcard(const SString& word, const SString& pattern) |
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292 | { |
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293 | if (pattern.len() == 0) |
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294 | return word.len() == 0; |
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295 | int aster = pattern.indexOf('*'); |
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296 | if (aster >= 0) |
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297 | { |
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298 | SString before = pattern.substr(0, aster); |
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299 | SString after = pattern.substr(aster + 1); |
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300 | if (!word.len()) return false; |
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301 | if (before.len()) if (!word.startsWith(before)) return false; |
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302 | if (after.len()) |
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303 | if ((word.len() < after.len()) |
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304 | || (strcmp((const char*)after, ((const char*)word) + word.len() - after.len()))) |
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305 | return false; |
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306 | return true; |
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307 | } |
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308 | else |
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309 | return word == pattern; |
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310 | } |
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311 | |
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312 | bool matchWildcardList(const SString& word, const SString& patterns) |
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313 | { |
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314 | if (patterns.len() == 0) |
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315 | return word.len() == 0; |
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316 | int pos = 0; |
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317 | SString pattern; |
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318 | while (patterns.getNextToken(pos, pattern, ',')) |
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319 | if (matchWildcard(word, pattern)) |
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320 | return true; |
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321 | return false; |
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322 | } |
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323 | |
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