1 | |
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2 | #include "cmt_deps_builder.h" |
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3 | #include "cmt_system.h" |
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4 | #include "cmt_use.h" |
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5 | #include "cmt_include.h" |
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6 | #include "cmt_symbol.h" |
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7 | |
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8 | // |
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9 | // While parsing a C++ file, these are the possible usefull |
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10 | // states we can reach. |
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11 | // Each state correspond to a specific state action function. |
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12 | // |
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13 | enum state_def |
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14 | { |
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15 | at_start, // beginning of the file |
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16 | in_line, // along a line |
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17 | in_string, // inside a quoted string |
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18 | in_char, // inside a quoted char |
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19 | in_comment, // inside a multi-line comment |
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20 | in_string_comment, // inside a quoted string in a comment |
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21 | in_char_comment, // inside a quoted char in a comment |
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22 | in_line_comment // inside a single-line comment |
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23 | }; |
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24 | |
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25 | //-------------------------------------------------- |
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26 | static int build_deps (const cmt_string& name, |
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27 | const cmt_string& dir_name, |
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28 | int current_path_index, |
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29 | const CmtSystem::cmt_string_vector& include_paths, |
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30 | const CmtSystem::cmt_string_vector& substitutions, |
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31 | CmtSystem::cmt_string_vector& all_deps, |
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32 | CmtSystem::cmt_string_vector& deps); |
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33 | |
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34 | |
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35 | //-------------------------------------------------- |
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36 | static void header_file_action (const char* header_file, |
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37 | const cmt_string& dir_name, |
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38 | int current_path_index, |
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39 | const CmtSystem::cmt_string_vector& include_paths, |
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40 | const CmtSystem::cmt_string_vector& substitutions, |
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41 | CmtSystem::cmt_string_vector& all_deps, |
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42 | CmtSystem::cmt_string_vector& deps) |
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43 | { |
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44 | bool found = false; |
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45 | |
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46 | for (int i = 0; i < all_deps.size (); i++) |
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47 | { |
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48 | if (all_deps[i] == header_file) |
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49 | { |
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50 | found = true; |
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51 | break; |
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52 | } |
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53 | } |
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54 | |
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55 | if (!found) |
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56 | { |
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57 | all_deps.push_back (header_file); |
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58 | |
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59 | int path_index = build_deps (header_file, |
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60 | dir_name, |
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61 | current_path_index, |
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62 | include_paths, |
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63 | substitutions, |
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64 | all_deps, |
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65 | deps); |
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66 | |
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67 | if (path_index >= 0) |
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68 | { |
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69 | cmt_string full_name; |
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70 | |
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71 | if (path_index == 1) |
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72 | { |
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73 | full_name = dir_name; |
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74 | full_name += CmtSystem::file_separator (); |
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75 | |
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76 | if (current_path_index >= 2) |
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77 | { |
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78 | full_name.replace (include_paths[current_path_index - 2], |
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79 | substitutions[current_path_index - 2]); |
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80 | } |
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81 | } |
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82 | else if (path_index > 1) |
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83 | { |
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84 | full_name = substitutions[path_index - 2]; |
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85 | full_name += CmtSystem::file_separator (); |
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86 | } |
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87 | |
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88 | full_name += header_file; |
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89 | |
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90 | deps.push_back (full_name); |
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91 | } |
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92 | } |
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93 | } |
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94 | |
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95 | |
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96 | //-------------------------------------------------- |
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97 | static char* at_start_action (char* ptr, |
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98 | state_def& state, |
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99 | const cmt_string& dir_name, |
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100 | int current_path_index, |
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101 | const CmtSystem::cmt_string_vector& include_paths, |
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102 | const CmtSystem::cmt_string_vector& substitutions, |
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103 | CmtSystem::cmt_string_vector& all_deps, |
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104 | CmtSystem::cmt_string_vector& deps) |
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105 | { |
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106 | char term = 0; |
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107 | |
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108 | if (*ptr == '#') |
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109 | { |
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110 | ptr++; |
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111 | while ((*ptr == ' ') || (*ptr == '\t')) ptr++; |
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112 | if (!strncmp (ptr, "include", 7)) |
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113 | { |
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114 | ptr += 7; |
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115 | |
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116 | while (*ptr == ' ') ptr++; |
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117 | if (*ptr == '<') |
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118 | { |
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119 | term = '>'; |
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120 | ptr++; |
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121 | } |
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122 | else if (*ptr == '"') |
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123 | { |
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124 | term = '"'; |
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125 | ptr++; |
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126 | } |
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127 | else |
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128 | { |
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129 | state = in_line; |
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130 | ptr += strlen (ptr); |
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131 | return (ptr); |
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132 | } |
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133 | } |
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134 | else |
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135 | { |
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136 | state = in_line; |
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137 | ptr += strlen (ptr); |
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138 | return (ptr); |
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139 | } |
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140 | } |
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141 | else if (!strncmp (ptr, " include", 13)) |
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142 | { |
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143 | ptr += 13; |
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144 | |
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145 | while ((*ptr == ' ') || (*ptr == '\t')) ptr++; |
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146 | if (*ptr == '\'') |
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147 | { |
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148 | term = '\''; |
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149 | ptr++; |
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150 | } |
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151 | else |
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152 | { |
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153 | state = in_line; |
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154 | return (ptr); |
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155 | } |
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156 | } |
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157 | else if (!strncmp (ptr, "\tinclude", 8)) |
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158 | { |
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159 | ptr += 8; |
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160 | |
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161 | while ((*ptr == ' ') || (*ptr == '\t')) ptr++; |
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162 | if (*ptr == '\'') |
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163 | { |
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164 | term = '\''; |
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165 | ptr++; |
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166 | } |
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167 | else |
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168 | { |
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169 | state = in_line; |
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170 | return (ptr); |
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171 | } |
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172 | } |
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173 | else |
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174 | { |
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175 | state = in_line; |
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176 | return (ptr); |
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177 | } |
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178 | |
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179 | char* end; |
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180 | |
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181 | end = strchr (ptr, term); |
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182 | if (end != 0) |
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183 | { |
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184 | *end = 0; |
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185 | } |
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186 | |
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187 | const char* header_file = ptr; |
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188 | |
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189 | header_file_action (header_file, |
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190 | dir_name, |
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191 | current_path_index, |
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192 | include_paths, |
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193 | substitutions, |
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194 | all_deps, |
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195 | deps); |
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196 | |
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197 | if (end != 0) |
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198 | { |
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199 | *end = term; |
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200 | } |
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201 | |
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202 | state = in_line; |
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203 | ptr += strlen (ptr); |
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204 | |
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205 | return (ptr); |
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206 | } |
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207 | |
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208 | //-------------------------------------------------- |
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209 | static char* in_line_action (char* ptr, state_def& state) |
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210 | { |
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211 | char* pattern = &ptr[strlen (ptr)]; |
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212 | |
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213 | char* pos = strchr (ptr, '"'); |
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214 | if (pos != 0) |
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215 | { |
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216 | if (pos < pattern) |
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217 | { |
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218 | state = in_string; |
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219 | pattern = pos; |
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220 | } |
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221 | } |
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222 | |
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223 | pos = strchr (ptr, '\''); |
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224 | if (pos != 0) |
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225 | { |
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226 | if (pos < pattern) |
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227 | { |
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228 | state = in_char; |
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229 | pattern = pos; |
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230 | } |
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231 | } |
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232 | |
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233 | pos = strstr (ptr, "/*"); //*/ |
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234 | if (pos != 0) |
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235 | { |
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236 | if (pos < pattern) |
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237 | { |
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238 | state = in_comment; |
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239 | pattern = pos + 1; |
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240 | } |
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241 | } |
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242 | |
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243 | pos = strstr (ptr, "//"); |
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244 | if (pos != 0) |
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245 | { |
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246 | if (pos < pattern) |
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247 | { |
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248 | state = in_line_comment; |
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249 | pattern = pos + 1; |
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250 | } |
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251 | } |
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252 | |
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253 | if (state != in_line) |
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254 | { |
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255 | ptr = pattern + 1; |
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256 | } |
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257 | else |
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258 | { |
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259 | ptr += strlen (ptr); |
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260 | } |
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261 | |
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262 | return (ptr); |
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263 | } |
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264 | |
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265 | //-------------------------------------------------- |
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266 | static char* in_string_action (char* ptr, state_def& state) |
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267 | { |
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268 | char* pos = strchr (ptr, '"'); |
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269 | if (pos == 0) |
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270 | { |
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271 | // This string is not finished till the end of the line.. |
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272 | // we expect it continues to the nex line... |
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273 | ptr += strlen (ptr); |
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274 | } |
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275 | else |
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276 | { |
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277 | pos--; |
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278 | if (*pos == '\\') |
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279 | { |
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280 | ptr = pos + 2; |
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281 | } |
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282 | else |
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283 | { |
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284 | ptr = pos + 2; |
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285 | state = in_line; |
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286 | } |
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287 | } |
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288 | |
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289 | return (ptr); |
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290 | } |
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291 | |
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292 | //-------------------------------------------------- |
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293 | static char* in_char_action (char* ptr, state_def& state) |
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294 | { |
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295 | char* pos = strchr (ptr, '\''); |
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296 | if (pos == 0) |
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297 | { |
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298 | // This string is not finished till the end of the line.. |
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299 | // we expect it continues to the nex line... |
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300 | ptr += strlen (ptr); |
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301 | } |
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302 | else |
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303 | { |
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304 | pos--; |
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305 | if (*pos == '\\') |
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306 | { |
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307 | ptr = pos + 2; |
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308 | } |
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309 | else |
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310 | { |
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311 | ptr = pos + 2; |
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312 | state = in_line; |
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313 | } |
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314 | } |
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315 | |
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316 | return (ptr); |
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317 | } |
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318 | |
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319 | //-------------------------------------------------- |
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320 | static char* in_comment_action (char* ptr, state_def& state) |
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321 | { |
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322 | char* pattern = &ptr[strlen (ptr)]; |
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323 | char* pos = strchr (ptr, '"'); |
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324 | if (pos != 0) |
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325 | { |
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326 | if (pos < pattern) |
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327 | { |
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328 | state = in_string_comment; |
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329 | pattern = pos; |
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330 | } |
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331 | } |
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332 | pos = strchr (ptr, '\''); |
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333 | if (pos != 0) |
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334 | { |
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335 | if (pos < pattern) |
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336 | { |
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337 | state = in_char_comment; |
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338 | pattern = pos; |
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339 | } |
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340 | } |
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341 | pos = strstr (ptr, "*/"); |
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342 | if (pos != 0) |
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343 | { |
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344 | if (pos < pattern) |
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345 | { |
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346 | state = in_line; |
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347 | pattern = pos + 1; |
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348 | } |
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349 | } |
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350 | |
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351 | if (state == in_comment) |
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352 | { |
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353 | ptr += strlen (ptr); |
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354 | } |
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355 | else |
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356 | { |
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357 | ptr = pattern + 1; |
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358 | } |
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359 | |
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360 | return (ptr); |
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361 | } |
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362 | |
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363 | //-------------------------------------------------- |
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364 | static char* in_string_comment_action (char* ptr, state_def& state) |
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365 | { |
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366 | char* pos = strchr (ptr, '"'); |
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367 | if (pos == 0) |
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368 | { |
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369 | // This string is not finished till the end of the line.. |
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370 | // we expect it continues to the nex line... |
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371 | ptr += strlen (ptr); |
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372 | } |
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373 | else |
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374 | { |
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375 | pos--; |
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376 | if (*pos == '\\') |
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377 | { |
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378 | ptr = pos + 2; |
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379 | } |
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380 | else |
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381 | { |
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382 | ptr = pos + 2; |
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383 | state = in_comment; |
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384 | } |
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385 | } |
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386 | |
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387 | return (ptr); |
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388 | } |
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389 | |
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390 | //-------------------------------------------------- |
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391 | static char* in_char_comment_action (char* ptr, state_def& state) |
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392 | { |
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393 | char* pos = strchr (ptr, '\''); |
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394 | if (pos == 0) |
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395 | { |
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396 | // This string is not finished till the end of the line.. |
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397 | // we expect it continues to the nex line... |
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398 | ptr += strlen (ptr); |
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399 | } |
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400 | else |
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401 | { |
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402 | pos--; |
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403 | if (*pos == '\\') |
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404 | { |
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405 | ptr = pos + 2; |
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406 | } |
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407 | else |
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408 | { |
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409 | ptr = pos + 2; |
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410 | state = in_comment; |
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411 | } |
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412 | } |
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413 | |
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414 | return (ptr); |
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415 | } |
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416 | |
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417 | //-------------------------------------------------- |
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418 | static char* in_line_comment_action (char* ptr, state_def& state) |
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419 | { |
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420 | ptr += strlen (ptr); |
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421 | |
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422 | return (ptr); |
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423 | } |
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424 | |
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425 | //-------------------------------------------------- |
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426 | static void build_deps_stream (istream& input, |
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427 | const cmt_string& dir_name, |
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428 | int current_path_index, |
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429 | const CmtSystem::cmt_string_vector& include_paths, |
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430 | const CmtSystem::cmt_string_vector& substitutions, |
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431 | CmtSystem::cmt_string_vector& all_deps, |
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432 | CmtSystem::cmt_string_vector& deps) |
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433 | { |
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434 | if (input) |
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435 | { |
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436 | if (Cmt::get_debug ()) |
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437 | { |
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438 | cout << "CMT> build_deps_stream dir_name=" << |
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439 | dir_name << endl; |
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440 | } |
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441 | |
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442 | while (!input.eof ()) |
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443 | { |
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444 | char line[16384]; |
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445 | |
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446 | input.getline (line, sizeof (line)); |
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447 | char* ptr = &line[0]; |
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448 | state_def state = at_start; |
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449 | |
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450 | if (Cmt::get_debug ()) |
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451 | { |
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452 | cout << "CMT> build_deps_stream2 line=[" << |
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453 | line << "]" << endl; |
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454 | } |
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455 | |
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456 | while (strlen (ptr) > 0) |
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457 | { |
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458 | switch (state) |
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459 | { |
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460 | case at_start: |
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461 | ptr = at_start_action (ptr, |
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462 | state, |
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463 | dir_name, |
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464 | current_path_index, |
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465 | include_paths, |
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466 | substitutions, |
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467 | all_deps, |
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468 | deps); |
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469 | break; |
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470 | case in_line: |
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471 | ptr = in_line_action (ptr, state); |
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472 | break; |
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473 | case in_string: |
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474 | ptr = in_string_action (ptr, state); |
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475 | break; |
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476 | case in_char: |
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477 | ptr = in_char_action (ptr, state); |
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478 | break; |
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479 | case in_comment: |
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480 | ptr = in_comment_action (ptr, state); |
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481 | break; |
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482 | case in_string_comment: |
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483 | ptr = in_string_comment_action (ptr, state); |
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484 | break; |
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485 | case in_char_comment: |
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486 | ptr = in_char_comment_action (ptr, state); |
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487 | break; |
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488 | case in_line_comment: |
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489 | ptr = in_line_action (ptr, state); |
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490 | break; |
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491 | } |
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492 | } |
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493 | } |
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494 | } |
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495 | } |
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496 | |
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497 | //-------------------------------------------------- |
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498 | static int build_deps (const cmt_string& name, |
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499 | const cmt_string& dir_name, |
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500 | int current_path_index, |
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501 | const CmtSystem::cmt_string_vector& include_paths, |
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502 | const CmtSystem::cmt_string_vector& substitutions, |
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503 | CmtSystem::cmt_string_vector& all_deps, |
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504 | CmtSystem::cmt_string_vector& deps) |
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505 | { |
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506 | int result = -1; |
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507 | cmt_string new_dir; |
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508 | |
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509 | if (Cmt::get_debug ()) |
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510 | { |
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511 | cout << "CMT> build_deps name=" << name << " dir_name=" << |
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512 | dir_name << endl; |
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513 | } |
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514 | |
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515 | // |
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516 | // Return 0 when the file is found in the current directory |
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517 | // |
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518 | if (CmtSystem::test_file (name)) |
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519 | { |
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520 | ifstream input (name.c_str ()); |
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521 | if (input) |
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522 | { |
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523 | CmtSystem::dirname (name, new_dir); |
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524 | build_deps_stream (input, new_dir, current_path_index, |
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525 | include_paths, substitutions, |
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526 | all_deps, deps); |
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527 | return (0); |
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528 | } |
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529 | } |
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530 | |
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531 | cmt_string full_name; |
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532 | |
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533 | full_name = dir_name; |
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534 | full_name += CmtSystem::file_separator (); |
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535 | full_name += name; |
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536 | |
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537 | // |
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538 | // Return 1 when the file is found in the directory of the |
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539 | // upper level source file |
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540 | // |
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541 | if (CmtSystem::test_file (full_name)) |
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542 | { |
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543 | ifstream input (full_name.c_str ()); |
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544 | if (input) |
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545 | { |
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546 | CmtSystem::dirname (full_name, new_dir); |
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547 | build_deps_stream (input, new_dir, current_path_index, |
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548 | include_paths, substitutions, |
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549 | all_deps, deps); |
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550 | return (1); |
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551 | } |
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552 | } |
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553 | |
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554 | int path_index = -1; |
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555 | |
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556 | // |
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557 | // Return [path_index + 2] when the include file is found at one of |
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558 | // the include_paths |
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559 | // |
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560 | for (path_index = 0; path_index < include_paths.size (); path_index++) |
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561 | { |
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562 | full_name = include_paths[path_index]; |
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563 | full_name += CmtSystem::file_separator (); |
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564 | full_name += name; |
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565 | |
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566 | if (Cmt::get_debug ()) |
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567 | { |
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568 | cout << "CMT> build_deps2 full_name=" << full_name << endl; |
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569 | } |
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570 | |
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571 | if (CmtSystem::test_file (full_name)) |
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572 | { |
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573 | ifstream in (full_name.c_str ()); |
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574 | if (in) |
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575 | { |
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576 | CmtSystem::dirname (full_name, new_dir); |
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577 | |
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578 | if (Cmt::get_debug ()) |
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579 | { |
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580 | cout << "CMT> build_deps3 new_dir=" << new_dir << endl; |
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581 | } |
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582 | |
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583 | build_deps_stream (in, |
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584 | new_dir, |
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585 | path_index + 2, |
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586 | include_paths, |
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587 | substitutions, |
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588 | all_deps, |
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589 | deps); |
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590 | |
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591 | return (path_index + 2); |
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592 | } |
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593 | } |
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594 | } |
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595 | |
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596 | if (Cmt::get_debug ()) |
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597 | { |
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598 | cout << "CMT> build_deps3" << endl; |
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599 | } |
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600 | |
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601 | return (-1); |
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602 | } |
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603 | |
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604 | //-------------------------------------------------------------------------- |
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605 | void DepsBuilder::clear () |
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606 | { |
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607 | m_include_paths.clear (); |
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608 | m_substitutions.clear (); |
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609 | } |
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610 | |
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611 | //-------------------------------------------------------------------------- |
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612 | void DepsBuilder::add (const cmt_string& path, const cmt_string& substitution) |
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613 | { |
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614 | if (path[path.size () - 1] == CmtSystem::file_separator ()) |
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615 | { |
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616 | cmt_string p = path; |
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617 | p.erase (path.size () - 1); |
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618 | m_include_paths.push_back (p); |
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619 | } |
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620 | else |
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621 | { |
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622 | m_include_paths.push_back (path); |
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623 | } |
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624 | |
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625 | m_substitutions.push_back (substitution); |
---|
626 | } |
---|
627 | |
---|
628 | //-------------------------------------------------------------------------- |
---|
629 | void DepsBuilder::add_includes (const Use& use) |
---|
630 | { |
---|
631 | const Include::IncludeVector& includes = use.includes; |
---|
632 | int include_number; |
---|
633 | |
---|
634 | for (include_number = 0; |
---|
635 | include_number < includes.size (); |
---|
636 | include_number++) |
---|
637 | { |
---|
638 | const Include& include = includes[include_number]; |
---|
639 | |
---|
640 | cmt_string temp = include.name; |
---|
641 | cmt_string pattern; |
---|
642 | cmt_string name; |
---|
643 | char end_pattern; |
---|
644 | |
---|
645 | int start = 0; |
---|
646 | |
---|
647 | for (;;) |
---|
648 | { |
---|
649 | int begin; |
---|
650 | |
---|
651 | begin = temp.find (start, "${"); |
---|
652 | if (begin != cmt_string::npos) |
---|
653 | { |
---|
654 | end_pattern = '}'; |
---|
655 | } |
---|
656 | else |
---|
657 | { |
---|
658 | begin = temp.find (start, "$("); |
---|
659 | if (begin != cmt_string::npos) |
---|
660 | { |
---|
661 | end_pattern = ')'; |
---|
662 | } |
---|
663 | else |
---|
664 | { |
---|
665 | break; |
---|
666 | } |
---|
667 | } |
---|
668 | |
---|
669 | start = begin + 2; |
---|
670 | |
---|
671 | int end; |
---|
672 | end = temp.find (start, end_pattern); |
---|
673 | if (end == cmt_string::npos) break; |
---|
674 | if (end < begin) break; |
---|
675 | start = end + 1; |
---|
676 | |
---|
677 | temp.substr (begin, end - begin + 1, pattern); |
---|
678 | temp.substr (begin + 2, end - begin - 2, name); |
---|
679 | |
---|
680 | Symbol* macro = Symbol::find (name); |
---|
681 | if (macro != 0) |
---|
682 | { |
---|
683 | cmt_string value = macro->resolve_macro_value (); |
---|
684 | value += CmtSystem::file_separator (); |
---|
685 | temp.replace_all (pattern, value); |
---|
686 | } |
---|
687 | else |
---|
688 | { |
---|
689 | cmt_string value = CmtSystem::getenv (name); |
---|
690 | value += CmtSystem::file_separator (); |
---|
691 | temp.replace_all (pattern, value); |
---|
692 | } |
---|
693 | } |
---|
694 | add (temp, include.name); |
---|
695 | } |
---|
696 | } |
---|
697 | |
---|
698 | //-------------------------------------------------------------------------- |
---|
699 | CmtSystem::cmt_string_vector& DepsBuilder::run (const cmt_string& file_name) |
---|
700 | { |
---|
701 | m_deps.clear (); |
---|
702 | m_all_deps.clear (); |
---|
703 | |
---|
704 | cmt_string preprocessor; |
---|
705 | Symbol* macro = Symbol::find ("preprocessor_command"); |
---|
706 | if (macro != 0) |
---|
707 | { |
---|
708 | preprocessor = macro->resolve_macro_value (); |
---|
709 | } |
---|
710 | |
---|
711 | if (preprocessor == "") |
---|
712 | { |
---|
713 | // |
---|
714 | // Since no preprocessor command is defined, |
---|
715 | // we use the internal mechanism provided here. |
---|
716 | // |
---|
717 | cmt_string new_dir; |
---|
718 | |
---|
719 | CmtSystem::dirname (file_name, new_dir); |
---|
720 | |
---|
721 | build_deps (file_name, |
---|
722 | new_dir, |
---|
723 | 0, |
---|
724 | m_include_paths, |
---|
725 | m_substitutions, |
---|
726 | m_all_deps, |
---|
727 | m_deps); |
---|
728 | } |
---|
729 | else |
---|
730 | { |
---|
731 | // |
---|
732 | // An external preprocessor command is defined. We expect it |
---|
733 | // to follow a "standard" syntax for its output, ie: |
---|
734 | // o It starts with: |
---|
735 | // <module>.o: ... |
---|
736 | // o There may be many lines with trailing back-slashes |
---|
737 | // o All entries are space-separated |
---|
738 | // o One of the entries is the source file name itself |
---|
739 | // |
---|
740 | // The preprocessor command expects the list of -I options |
---|
741 | // (resolved from the "includes" macro) and the list of |
---|
742 | // -D/-U options (resolved from the "*_pp_*flags" macros) |
---|
743 | // |
---|
744 | |
---|
745 | // |
---|
746 | // Building the complete command (still the pp_*flags are |
---|
747 | // missing) |
---|
748 | // |
---|
749 | preprocessor += " "; |
---|
750 | macro = Symbol::find ("includes"); |
---|
751 | preprocessor += macro->resolve_macro_value (); |
---|
752 | preprocessor += " "; |
---|
753 | preprocessor += file_name; |
---|
754 | |
---|
755 | cmt_string output; |
---|
756 | |
---|
757 | CmtSystem::execute (preprocessor, output); |
---|
758 | |
---|
759 | // |
---|
760 | // Make the output as one single big line. |
---|
761 | // |
---|
762 | |
---|
763 | output.replace_all ("\n", " "); |
---|
764 | output.replace_all ("\\ ", " "); |
---|
765 | |
---|
766 | CmtSystem::cmt_string_vector files; |
---|
767 | |
---|
768 | CmtSystem::split (output, " \t", files); |
---|
769 | |
---|
770 | // |
---|
771 | // Analyze each entry |
---|
772 | // |
---|
773 | |
---|
774 | for (int i = 1; i < files.size (); i++) |
---|
775 | { |
---|
776 | const cmt_string& file = files[i]; |
---|
777 | if (file == file_name) continue; |
---|
778 | |
---|
779 | cmt_string dir; |
---|
780 | cmt_string name; |
---|
781 | cmt_string full_name; |
---|
782 | |
---|
783 | CmtSystem::dirname (file, dir); |
---|
784 | |
---|
785 | // |
---|
786 | // Only declared include_paths will be taken into account |
---|
787 | // Others are considered as system include paths. |
---|
788 | // |
---|
789 | |
---|
790 | for (int j = 0; j < m_include_paths.size (); j++) |
---|
791 | { |
---|
792 | const cmt_string& p = m_include_paths[j]; |
---|
793 | if (dir == p) |
---|
794 | { |
---|
795 | CmtSystem::basename (file, name); |
---|
796 | full_name = m_substitutions[j]; |
---|
797 | full_name += name; |
---|
798 | |
---|
799 | // |
---|
800 | // We add in the "m_deps" list the symbolic form |
---|
801 | // of the path rather that the expanded one. |
---|
802 | // |
---|
803 | |
---|
804 | m_deps.push_back (full_name); |
---|
805 | |
---|
806 | break; |
---|
807 | } |
---|
808 | } |
---|
809 | } |
---|
810 | } |
---|
811 | |
---|
812 | return (m_deps); |
---|
813 | } |
---|
814 | |
---|