1 | // This file is a part of the Framsticks GDK. |
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2 | // Copyright (C) 1999-2014 Maciej Komosinski and Szymon Ulatowski. See LICENSE.txt for details. |
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3 | // Refer to http://www.framsticks.com/ for further information. |
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4 | |
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5 | #include "multiparamload.h" |
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6 | #include <frams/util/sstringutils.h> |
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7 | #include "common/framsg.h" |
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8 | #include <ctype.h> |
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9 | |
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10 | void MultiParamLoader::init() |
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11 | { |
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12 | file=0; ownfile=0; |
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13 | status=0; |
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14 | reset(); |
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15 | } |
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16 | |
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17 | void MultiParamLoader::reset() |
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18 | { |
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19 | status=0; |
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20 | breakcond=OnError; |
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21 | emptyparam.setParamTab(empty_paramtab); |
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22 | } |
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23 | |
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24 | int MultiParamLoader::findObject(const ExtObject &o) |
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25 | { |
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26 | for(int i=0;i<objects.size();i++) |
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27 | if ((*objects(i))==o) |
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28 | return i; |
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29 | return -1; |
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30 | } |
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31 | |
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32 | void MultiParamLoader::removeObject(const ExtObject &o) |
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33 | { |
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34 | int i=findObject(o); |
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35 | if (i>=0) |
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36 | { |
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37 | delete objects(i); |
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38 | objects-=i; |
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39 | } |
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40 | } |
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41 | |
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42 | void MultiParamLoader::clearObjects() |
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43 | { |
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44 | FOREACH(ExtObject*,o,objects) |
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45 | delete o; |
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46 | objects.clear(); |
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47 | } |
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48 | |
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49 | void MultiParamLoader::load() |
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50 | { |
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51 | clearstack(); |
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52 | if (!file) |
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53 | { |
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54 | lasterror="can't open file"; |
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55 | status=OnError; |
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56 | return; |
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57 | } |
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58 | status=Loading; |
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59 | } |
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60 | |
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61 | void MultiParamLoader::abort() |
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62 | { |
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63 | if (file && ownfile) |
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64 | { |
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65 | fclose(file); |
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66 | file=0; |
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67 | } |
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68 | clearstack(); |
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69 | status=Finished; |
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70 | } |
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71 | |
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72 | void MultiParamLoader::load(VirtFILE *f) |
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73 | { |
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74 | abort(); |
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75 | ownfile=0; |
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76 | file=f; |
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77 | load(); |
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78 | } |
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79 | |
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80 | void MultiParamLoader::load(const char* filename) |
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81 | { |
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82 | abort(); |
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83 | ownfile=1; |
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84 | file=Vfopen(filename,FOPEN_READ_BINARY); |
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85 | load(); |
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86 | } |
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87 | |
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88 | int MultiParamLoader::go() |
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89 | { |
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90 | SString buf; |
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91 | if (status==OnError) return status; |
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92 | while (!finished()) |
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93 | { |
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94 | if ((status==BeforeObject) || ((status==BeforeUnknown) && !lastobject.isEmpty())) |
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95 | { |
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96 | Param tmp_param; |
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97 | ParamInterface *pi=lastobject.getParamInterface(tmp_param); |
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98 | pi->load(file); |
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99 | if ((status!=Finished) && maybeBreak(AfterObject)) |
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100 | break; |
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101 | continue; |
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102 | } |
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103 | else if (status==BeforeUnknown) |
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104 | { |
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105 | FMprintf("MultiParamLoader","go",FMLV_WARN,"Skipping object '%s'",(const char*)lastunknown); |
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106 | loadObjectNow(&emptyparam,false); |
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107 | continue; |
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108 | } |
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109 | if (!loadSStringLine(file,buf)) |
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110 | { |
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111 | if (!returnFromIncluded()) |
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112 | { |
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113 | abort(); |
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114 | break; |
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115 | } |
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116 | else |
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117 | continue; |
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118 | } |
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119 | if (buf[0]=='#') |
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120 | { |
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121 | if (buf.startsWith("#include")) |
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122 | { |
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123 | const char* t=strchr((const char*)buf,'\"'),*t2=0; |
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124 | if (t) |
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125 | t2=strchr(t+1,'\"'); |
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126 | if (t2) |
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127 | { |
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128 | SString filename(t+1,t2-t-1); |
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129 | includeFile(filename); |
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130 | } |
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131 | else |
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132 | { |
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133 | const char* thisfilename=file->VgetPath(); |
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134 | FMprintf("MultiParamLoader","go",FMLV_WARN,"invalid \"%s\"%s%s",(const char*)buf, |
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135 | (thisfilename?" in ":""),(thisfilename?thisfilename:"")); |
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136 | } |
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137 | continue; |
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138 | } |
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139 | else if ((status!=Finished) && maybeBreak(OnComment)) |
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140 | { |
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141 | lastcomment=buf.substr(1); |
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142 | break; |
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143 | } |
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144 | continue; |
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145 | } |
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146 | buf=trim(buf); |
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147 | if ((buf.len()>1)&&(buf[buf.len()-1]==':')) |
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148 | { |
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149 | lastunknown=0; |
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150 | lastunknown=buf.substr(0,buf.len()-1); |
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151 | lastobject.setEmpty(); |
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152 | FOREACH(ExtObject*,o,objects) |
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153 | { |
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154 | if (!strcmp(o->interfaceName(),lastunknown)) {lastobject=*o; break;} |
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155 | } |
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156 | if (!lastobject.isEmpty()) |
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157 | { |
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158 | if (maybeBreak(BeforeObject)) |
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159 | break; |
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160 | } |
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161 | else |
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162 | { |
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163 | if (maybeBreak(BeforeUnknown)) |
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164 | break; |
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165 | } |
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166 | |
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167 | } |
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168 | } |
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169 | return status; |
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170 | } |
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171 | |
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172 | bool MultiParamLoader::alreadyIncluded(const char* filename) |
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173 | { |
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174 | int i; |
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175 | const char* t; |
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176 | for(i=0;i<filestack.size();i++) |
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177 | { |
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178 | t=filestack(i)->VgetPath(); |
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179 | if (!t) continue; |
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180 | if (!strcmp(filename,t)) return true; |
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181 | } |
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182 | return false; |
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183 | } |
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184 | |
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185 | void MultiParamLoader::includeFile(SString& filename) |
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186 | { |
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187 | const char* thisfilename=file->VgetPath(); |
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188 | SString newfilename; |
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189 | const char* t=thisfilename?strrchr(thisfilename,PATH_SEPARATOR_CHAR):0; |
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190 | |
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191 | if (thisfilename && t) |
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192 | { |
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193 | newfilename.append(thisfilename,t-thisfilename+1); |
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194 | newfilename+=filename; |
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195 | } |
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196 | else |
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197 | newfilename=filename; |
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198 | |
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199 | if (alreadyIncluded(newfilename)) |
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200 | { |
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201 | FMprintf("MultiParamLoader","include",FMLV_WARN,"circular reference ignored (\"%s\")", |
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202 | (const char*)filename); |
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203 | return; |
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204 | } |
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205 | |
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206 | VirtFILE *f=Vfopen(newfilename,FOPEN_READ_BINARY); |
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207 | if (!f) |
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208 | { |
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209 | FMprintf("MultiParamLoader","include",FMLV_WARN,"\"%s\" not found",(const char*)newfilename); |
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210 | } |
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211 | else |
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212 | { |
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213 | filestack+=file; |
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214 | file=f; |
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215 | } |
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216 | } |
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217 | |
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218 | VirtFILE* MultiParamLoader::popstack() |
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219 | { |
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220 | if (!filestack.size()) return 0; |
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221 | VirtFILE* f=filestack(filestack.size()-1); |
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222 | filestack.remove(filestack.size()-1); |
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223 | return f; |
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224 | } |
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225 | |
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226 | void MultiParamLoader::clearstack() |
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227 | { |
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228 | VirtFILE *f; |
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229 | while(f=popstack()) fclose(f); |
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230 | } |
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231 | |
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232 | bool MultiParamLoader::returnFromIncluded() |
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233 | { |
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234 | if (!filestack.size()) return false; |
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235 | if (file) fclose(file); |
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236 | file=popstack(); |
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237 | return true; |
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238 | } |
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239 | |
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240 | int MultiParamLoader::loadObjectNow(const ExtObject& o,bool warn_unknown_fields) |
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241 | { |
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242 | Param tmp_param; |
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243 | ParamInterface *pi=o.getParamInterface(tmp_param); |
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244 | pi->load(file,warn_unknown_fields); |
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245 | status=AfterObject; |
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246 | return 0; |
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247 | } |
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248 | |
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249 | int MultiParamLoader::run() |
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250 | { |
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251 | int stat; |
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252 | breakOn(OnError); |
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253 | while(stat=go()) |
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254 | if (stat==OnError) |
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255 | { |
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256 | abort(); |
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257 | return 0; |
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258 | } |
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259 | return 1; |
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260 | } |
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