1 | /**********************************************************************
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2 | *
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3 | * display.cpp -- Context sensitive macro language
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4 | * Copyright (C) 1999 The New Zealand Digital Library Project
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5 | *
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6 | * PUT COPYRIGHT NOTICE HERE
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7 | *
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8 | * $Id: display.cpp 181 1999-03-01 20:39:54Z sjboddie $
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9 | *
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10 | *********************************************************************/
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11 |
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12 | /*
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13 | $Log$
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14 | Revision 1.10 1999/03/01 20:39:54 sjboddie
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15 | Added eq and ne functionality to _If_
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16 |
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17 | Revision 1.9 1999/03/01 01:18:09 sjboddie
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18 |
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19 | Fixed bug in _If_ when value being tested was only one character
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20 | long (e.g. "0" or "1")
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21 |
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22 | Revision 1.8 1999/02/28 23:15:29 rjmcnab
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23 |
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24 | Made _If_ recognise 'false' and '0' as being false.
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25 |
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26 | Revision 1.7 1999/02/08 01:26:11 rjmcnab
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27 |
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28 | Improved the error reporting.
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29 |
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30 | Revision 1.6 1999/01/19 08:30:23 rjmcnab
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31 |
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32 | Added a method to determine whether a macro has been defined.
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33 |
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34 | Revision 1.5 1999/01/19 01:38:12 rjmcnab
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35 |
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36 | Made the source more portable.
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37 |
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38 | Revision 1.4 1999/01/12 01:50:57 rjmcnab
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39 |
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40 | Standard header.
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41 |
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42 | Revision 1.3 1999/01/08 02:33:13 rjmcnab
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43 |
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44 | Added standard header to source files.
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45 |
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46 | */
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47 |
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48 |
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49 | #include "display.h"
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50 | #include "gsdlunicode.h"
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51 | #include <assert.h>
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52 |
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53 | // include to get NULL
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54 | #include <stdlib.h>
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55 |
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56 |
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57 |
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58 | /////////////////////////////////////
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59 | // misc classes
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60 | /////////////////////////////////////
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61 |
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62 |
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63 | // precedencetype defines a 'precedence value' for each parameter
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64 | typedef map<text_t, double, lttext_t> precedencetype;
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65 |
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66 |
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67 | // macro value structure
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68 | struct mvalue
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69 | {
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70 | text_t filename;
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71 | text_t value;
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72 | };
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73 |
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74 | inline bool operator==(const mvalue &x, const mvalue &y) {
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75 | return (x.filename==y.filename && x.value==y.value);
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76 | }
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77 |
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78 | inline bool operator<(const mvalue &x, const mvalue &y) {
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79 | return (x.filename<y.filename ||
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80 | (x.filename==y.filename && x.filename<y.filename));
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81 | }
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82 |
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83 |
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84 |
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85 | /////////////////////////////////////
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86 | // stuff for defaultmacros_t
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87 | /////////////////////////////////////
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88 |
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89 | typedef map<text_t, mvalue, lttext_t> defparammap;
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90 | typedef map<text_t, defparammap, lttext_t> defmacromap;
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91 | typedef map<text_t, defmacromap, lttext_t> defpackagemap;
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92 |
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93 | // all methods in defaultmacros_t assume the parameters
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94 | // and packages in a standard form and not empty
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95 | class defaultmacros_t
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96 | {
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97 | protected:
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98 | defpackagemap macros;
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99 |
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100 | public:
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101 | typedef defpackagemap::const_iterator const_package_iterator;
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102 | typedef defpackagemap::size_type package_size_type;
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103 |
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104 | // setmacro returns 0 if there was no error,
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105 | // -1 if it redefined a macro
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106 | // -2 if it hid a Global macro
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107 | // -3 if it redefined a macro and hid a Global macro
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108 | // -4 if either a package, macroname, or params were not supplied
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109 | int setmacro(const text_t &package,
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110 | const text_t ¯oname,
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111 | const text_t ¶ms,
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112 | const text_t &filename,
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113 | const text_t ¯ovalue);
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114 |
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115 | void delmacro(const text_t &package,
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116 | const text_t ¯oname,
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117 | const text_t ¶ms);
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118 |
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119 | void clear () {macros.erase(macros.begin(), macros.end());}
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120 |
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121 | // top level stuff
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122 | const_package_iterator package_begin () const {return macros.begin();}
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123 | const_package_iterator package_end () const {return macros.end();}
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124 | bool package_empty () const {return macros.empty();}
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125 | package_size_type package_size() const {return macros.size();}
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126 |
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127 | // methods to find things
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128 | defmacromap *package_find (const text_t &packagename);
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129 | defparammap *macro_find (const text_t &packagename,
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130 | const text_t ¯oname);
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131 | mvalue *parameter_find (const text_t &packagename,
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132 | const text_t ¯oname,
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133 | const text_t ¶metername);
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134 | };
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135 |
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136 |
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137 | // setmacro returns 0 if there was no error,
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138 | // -1 if it redefined a macro
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139 | // -2 if it hid a Global macro
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140 | // -3 if it redefined a macro and hid a Global macro
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141 | // -4 if either a package, macroname, or params were not supplied
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142 | int defaultmacros_t::setmacro(const text_t &package,
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143 | const text_t ¯oname,
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144 | const text_t ¶ms,
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145 | const text_t &filename,
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146 | const text_t ¯ovalue)
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147 | {
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148 | paramhashtype paramhash;
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149 |
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150 | defmacromap *macromapptr;
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151 | defparammap *parammapptr;
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152 | mvalue *mvalueptr;
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153 |
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154 | int warning = 0;
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155 |
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156 | // check to see if we would be hiding a Global macro with the
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157 | // same name. Note: it doesn't matter what parameters are used
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158 | // a Global macro will still be hid by a non-Global one with
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159 | // the same name.
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160 | if ((package != "Global") &&
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161 | (macro_find ("Global", macroname) != NULL))
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162 | {
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163 | warning -= 2; // found the macroname
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164 | }
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165 |
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166 | // define this macro
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167 | macromapptr = &(macros[package]); // -- package
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168 | parammapptr = &((*macromapptr)[macroname]); // -- macro name
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169 | // -- parameters
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170 | if ((*parammapptr).find(params) != (*parammapptr).end()) {
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171 | warning -= 1; // found the parameters
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172 | }
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173 | mvalueptr = &((*parammapptr)[params]);
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174 |
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175 | // -- value
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176 | (*mvalueptr).filename = filename;
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177 | (*mvalueptr).value = macrovalue;
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178 |
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179 | return warning;
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180 | }
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181 |
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182 | void defaultmacros_t::delmacro(const text_t &package,
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183 | const text_t ¯oname,
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184 | const text_t ¶ms)
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185 | {
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186 | // make sure everything was supplied
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187 | if (package.empty() || macroname.empty() || params.empty()) return;
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188 |
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189 | // find the package and macroname
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190 | defparammap *parammapptr = macro_find(package, macroname);
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191 | if (parammapptr == NULL) return;
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192 |
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193 | // find the parameters
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194 | defparammap::iterator parammapit = parammapptr->find(params);
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195 | if (parammapit == parammapptr->end()) return;
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196 |
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197 | // finally delete this element
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198 | parammapptr->erase(parammapit);
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199 | }
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200 |
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201 | defmacromap *defaultmacros_t::package_find (const text_t &packagename)
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202 | {
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203 | if (packagename.empty()) return NULL;
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204 |
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205 | defpackagemap::iterator it = macros.find(packagename);
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206 | if (it == macros.end()) return NULL;
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207 |
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208 | return &((*it).second);
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209 | }
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210 |
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211 | defparammap *defaultmacros_t::macro_find (const text_t &packagename,
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212 | const text_t ¯oname)
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213 | {
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214 | defmacromap *macromapptr = package_find(packagename);
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215 | if (macromapptr == NULL || macroname.empty()) return NULL;
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216 |
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217 | defmacromap::iterator it = (*macromapptr).find(macroname);
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218 | if (it == (*macromapptr).end()) return NULL;
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219 |
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220 | return &((*it).second);
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221 | }
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222 |
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223 | mvalue *defaultmacros_t::parameter_find (const text_t &packagename,
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224 | const text_t ¯oname,
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225 | const text_t ¶metername)
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226 | {
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227 | defparammap *parammapptr = macro_find(packagename, macroname);
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228 | if (parammapptr == NULL || parametername.empty()) return NULL;
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229 |
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230 | defparammap::iterator it = (*parammapptr).find(parametername);
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231 | if (it == (*parammapptr).end()) return NULL;
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232 |
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233 | return &((*it).second);
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234 | }
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235 |
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236 |
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237 |
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238 | /////////////////////////////////////
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239 | // stuff for currentmacros_t
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240 | /////////////////////////////////////
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241 |
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242 | typedef map<text_t, mvalue, lttext_t> curmacromap;
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243 | typedef map<text_t, curmacromap, lttext_t> curpackagemap;
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244 |
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245 | // all methods in currentmacros_t assume the parameters
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246 | // and packages in a standard form and not empty
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247 | class currentmacros_t
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248 | {
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249 | protected:
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250 | curpackagemap macros;
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251 |
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252 | public:
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253 | typedef curpackagemap::const_iterator const_package_iterator;
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254 | typedef curpackagemap::size_type package_size_type;
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255 |
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256 | // setmacro returns 0 if there was no error,
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257 | // -1 if it redefined a macro
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258 | // -4 if either a package, or macroname were not supplied
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259 | int setmacro(const text_t &package,
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260 | const text_t ¯oname,
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261 | const text_t &filename,
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262 | const text_t ¯ovalue);
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263 |
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264 | void delmacro(const text_t &package,
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265 | const text_t ¯oname);
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266 |
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267 | void clear () {macros.erase(macros.begin(), macros.end());}
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268 |
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269 | // top level stuff
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270 | const_package_iterator package_begin () const {return macros.begin();}
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271 | const_package_iterator package_end () const {return macros.end();}
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272 | bool package_empty () const {return macros.empty();}
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273 | package_size_type package_size() const {return macros.size();}
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274 |
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275 | // methods to find things
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276 | curmacromap *package_find (const text_t &packagename);
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277 | mvalue *macro_find (const text_t &packagename,
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278 | const text_t ¯oname);
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279 | };
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280 |
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281 |
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282 | // setmacro returns 0 if there was no error,
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283 | // -1 if it redefined a macro
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284 | // -4 if either a package, or macroname were not supplied
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285 | int currentmacros_t::setmacro(const text_t &package,
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286 | const text_t ¯oname,
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287 | const text_t &filename,
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288 | const text_t ¯ovalue)
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289 | {
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290 | int warning = 0;
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291 |
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292 | // make sure everything was supplied
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293 | if (package.empty() || macroname.empty()) return -4;
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294 |
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295 | // define this macro
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296 | curmacromap *macromapptr = &(macros[package]);
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297 | if ((*macromapptr).find(macroname) != (*macromapptr).end())
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298 | {
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299 | warning -= 1; // found the macroname
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300 | }
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301 | mvalue *mvalueptr = &((*macromapptr)[macroname]);
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302 |
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303 | // -- value
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304 | (*mvalueptr).filename = filename;
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305 | (*mvalueptr).value = macrovalue;
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306 |
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307 | return warning;
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308 | }
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309 |
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310 | void currentmacros_t::delmacro(const text_t &package,
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311 | const text_t ¯oname)
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312 | {
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313 | // make sure everything was supplied
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314 | if (package.empty() || macroname.empty()) return;
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315 |
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316 | // find the package
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317 | curmacromap *macromapptr = package_find(package);
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318 | if (macromapptr == NULL) return;
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319 |
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320 | // find the macroname
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321 | curmacromap::iterator macromapit = macromapptr->find(macroname);
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322 | if (macromapit == macromapptr->end()) return;
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323 |
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324 | // finally delete this element
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325 | macromapptr->erase(macromapit);
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326 | }
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327 |
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328 | curmacromap *currentmacros_t::package_find (const text_t &packagename)
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329 | {
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330 | if (packagename.empty()) return NULL;
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331 |
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332 | curpackagemap::iterator it = macros.find(packagename);
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333 | if (it == macros.end()) return NULL;
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334 |
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335 | return &((*it).second);
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336 | }
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337 |
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338 | mvalue *currentmacros_t::macro_find (const text_t &packagename,
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339 | const text_t ¯oname)
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340 | {
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341 | curmacromap *macromapptr = package_find(packagename);
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342 | if (macromapptr == NULL || macroname.empty()) return NULL;
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343 |
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344 | curmacromap::iterator it = (*macromapptr).find(macroname);
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345 | if (it == (*macromapptr).end()) return NULL;
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346 |
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347 | return &((*it).second);
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348 | }
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349 |
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350 |
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351 |
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352 |
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353 | /////////////////////////////////////
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354 | // support functions
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355 | /////////////////////////////////////
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356 |
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357 | // this calculation of precedence will make one occurance of a high
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358 | // precedence item override many occurances of lower precedence items
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359 | void calcprecedence (const text_t &precedstr, precedencetype &precedhash)
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360 | {
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361 | text_t param;
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362 | double multiple = 5.0;
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363 | double nextprec = multiple;
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364 |
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365 | text_t::const_iterator here, end;
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366 |
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367 | // set precedhash to an empty hash
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368 | precedhash.erase(precedhash.begin(), precedhash.end());
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369 |
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370 | // iterate through paramstring ignoring space and extracting
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371 | // out key value pairs.
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372 | here = precedstr.begin();
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373 | end = precedstr.end();
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374 | while (here != end)
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375 | {
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376 | // get the next parameter
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377 | param.clear(); // set param to an empty string
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378 |
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379 | while (here != end)
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380 | {
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381 | if (*here == ',')
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382 | {
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383 | // found the end of the parameter
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384 | here++;
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385 | break;
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386 | }
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387 | else if (*here == ' ')
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388 | {
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389 | // do nothing (ignore spaces)
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390 | }
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391 | else
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392 | {
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393 | // character in parameter
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394 | param.push_back (*here); // copy this character
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395 | }
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396 |
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397 | here++;
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398 | }
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399 |
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400 | // if a parameter was found insert its value
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401 | if (!param.empty())
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402 | {
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403 | precedhash[param] = nextprec;
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404 | nextprec *= multiple;
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405 | }
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406 | }
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407 | }
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408 |
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409 |
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410 | // decides how specific any given parameter is to the page parameters. Returns
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411 | // negative if any options are different or else the sum of the precedence for
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412 | // the options which match.
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413 | double getspecificness(const paramhashtype &pageparams,
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414 | const paramhashtype &theseparams,
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415 | const precedencetype &precedhash)
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416 | {
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417 | double specificness = 0.0;
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418 | paramhashtype::const_iterator here, pagevalueit;
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419 | precedencetype::const_iterator precedit;
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420 | text_t thesekey, thesevalue, constignore("ignore");
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421 |
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422 | here = theseparams.begin();
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423 | while (here != theseparams.end())
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424 | {
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425 | thesekey = (*here).first;
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426 | thesevalue = (*here).second;
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427 |
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428 | if (thesekey == constignore)
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429 | {
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430 | // do nothing, this is a placeholder
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431 | }
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432 | else
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433 | {
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434 | pagevalueit = pageparams.find(thesekey);
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435 | if ((pagevalueit != pageparams.end()) &&
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436 | ((*pagevalueit).second == thesevalue))
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437 | {
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438 | // this parameter fits, add its precedence value
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439 | precedit = precedhash.find(thesekey);
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440 | if (precedit == precedhash.end())
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441 | specificness += 1.0; // no precedence defined
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442 | else
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443 | specificness += (*precedit).second;
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444 | }
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445 | else
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446 | {
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447 | return -1.0; // did not match
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448 | }
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449 | }
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450 |
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451 | here++;
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452 | }
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453 |
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454 | return specificness;
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455 | }
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456 |
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457 |
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458 | void splitparams (const text_t ¶mstring, paramhashtype ¶mhash)
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459 | {
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460 | text_t key;
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461 | text_t value;
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462 |
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463 | text_t::const_iterator here, end;
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464 |
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465 | // set paramhash to an empty hash
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466 | paramhash.erase(paramhash.begin(), paramhash.end());
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467 |
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468 | // iterate through paramstring ignoring space and extracting
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469 | // out key value pairs.
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470 | here = paramstring.begin();
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471 | end = paramstring.end();
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472 | while (here != end)
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473 | {
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474 | // reset key and value
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475 | key.clear();
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476 | value.clear();
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477 |
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478 | // get key
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479 | while (here != end)
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480 | {
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481 | if (*here == ',')
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482 | {
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483 | // have a key with no value
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484 | break;
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485 | }
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486 | else if (*here == '=')
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487 | {
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488 | // found the end of the key
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---|
489 | here ++;
|
---|
490 | break;
|
---|
491 | }
|
---|
492 | else if (*here == ' ')
|
---|
493 | {
|
---|
494 | // do nothing (ignore spaces)
|
---|
495 | }
|
---|
496 | else
|
---|
497 | {
|
---|
498 | // character in key
|
---|
499 | key.push_back (*here); // copy this character
|
---|
500 | }
|
---|
501 | here ++;
|
---|
502 | }
|
---|
503 |
|
---|
504 | // get value
|
---|
505 | while (here != end)
|
---|
506 | {
|
---|
507 | if (*here == '=')
|
---|
508 | {
|
---|
509 | // multiple values for one key, ignore previous
|
---|
510 | // values
|
---|
511 | value.clear();
|
---|
512 | }
|
---|
513 | else if (*here == ',')
|
---|
514 | {
|
---|
515 | // found the end of the value
|
---|
516 | here ++;
|
---|
517 | break;
|
---|
518 | }
|
---|
519 | else if (*here == ' ')
|
---|
520 | {
|
---|
521 | // do nothing (ignore spaces)
|
---|
522 | }
|
---|
523 | else
|
---|
524 | {
|
---|
525 | // character in value
|
---|
526 | value.push_back (*here); // copy this character
|
---|
527 | }
|
---|
528 | here ++;
|
---|
529 | }
|
---|
530 |
|
---|
531 | // if a key was found insert the key/value pair in
|
---|
532 | // the map
|
---|
533 | if (!key.empty())
|
---|
534 | {
|
---|
535 | paramhash[key] = value;
|
---|
536 | }
|
---|
537 | }
|
---|
538 | }
|
---|
539 |
|
---|
540 |
|
---|
541 | void joinparams (const paramhashtype ¶mhash, text_t ¶mstring)
|
---|
542 | {
|
---|
543 | //set paramstring to an empty string
|
---|
544 | paramstring.clear();
|
---|
545 |
|
---|
546 | //iterate through the paramhash
|
---|
547 | paramhashtype::const_iterator thepair;
|
---|
548 | int firstparam = 1;
|
---|
549 |
|
---|
550 | for (thepair=paramhash.begin();thepair!=paramhash.end(); thepair++)
|
---|
551 | {
|
---|
552 | if (!firstparam) paramstring.push_back(',');
|
---|
553 | firstparam = 0;
|
---|
554 |
|
---|
555 | // insert pairs of "key=value"
|
---|
556 | text_t thevalue;
|
---|
557 | paramstring.append((*thepair).first);
|
---|
558 | paramstring.push_back('=');
|
---|
559 | paramstring.append((*thepair).second);
|
---|
560 | }
|
---|
561 | }
|
---|
562 |
|
---|
563 |
|
---|
564 |
|
---|
565 | /////////////////////////////////////
|
---|
566 | // parsing support functions
|
---|
567 | /////////////////////////////////////
|
---|
568 |
|
---|
569 | inline int my_isspace (char ch)
|
---|
570 | {
|
---|
571 | unsigned char c = ch;
|
---|
572 | return (((c > 0) && (c <= 31)) || (c == ' '));
|
---|
573 | }
|
---|
574 |
|
---|
575 |
|
---|
576 | inline int my_isalpha (char c)
|
---|
577 | {
|
---|
578 | return ((c >= 'A' && c <= 'Z') ||
|
---|
579 | (c >= 'a' && c <= 'z'));
|
---|
580 | }
|
---|
581 |
|
---|
582 |
|
---|
583 | // as we are using one character lookahead the
|
---|
584 | // value of line might be off by one.
|
---|
585 | inline char my_get (istream &fin, int &line)
|
---|
586 | {
|
---|
587 | char c;
|
---|
588 | fin.get(c);
|
---|
589 | if (c == '\n') line++;
|
---|
590 | return c;
|
---|
591 | }
|
---|
592 |
|
---|
593 |
|
---|
594 | inline unsigned short my_ttnextchar (text_t::const_iterator &here,
|
---|
595 | text_t::const_iterator &end)
|
---|
596 | {
|
---|
597 | if (here != end)
|
---|
598 | {
|
---|
599 | here++;
|
---|
600 | if (here != end) return (*here);
|
---|
601 | }
|
---|
602 | return '\0';
|
---|
603 | }
|
---|
604 |
|
---|
605 |
|
---|
606 |
|
---|
607 | /////////////////////////////////////
|
---|
608 | // methods for display
|
---|
609 | /////////////////////////////////////
|
---|
610 |
|
---|
611 | // public methods for display
|
---|
612 |
|
---|
613 | displayclass::displayclass ()
|
---|
614 | {
|
---|
615 | defaultmacros = new defaultmacros_t;
|
---|
616 | defaultfiles = new fileinfomap;
|
---|
617 |
|
---|
618 | orderparamlist = new paramspeclist;
|
---|
619 | currentmacros = new currentmacros_t;
|
---|
620 |
|
---|
621 | outc = NULL;
|
---|
622 |
|
---|
623 | logout = &cerr;
|
---|
624 | }
|
---|
625 |
|
---|
626 |
|
---|
627 | displayclass::~displayclass ()
|
---|
628 | {
|
---|
629 | delete defaultmacros;
|
---|
630 | delete defaultfiles;
|
---|
631 |
|
---|
632 | delete orderparamlist;
|
---|
633 | delete currentmacros;
|
---|
634 | }
|
---|
635 |
|
---|
636 | // setdefaultmacro adds an entry to the list of default macros
|
---|
637 | // returns 0 if there was no error,
|
---|
638 | // -1 if it redefined a macro
|
---|
639 | // -2 if it hid a Global macro
|
---|
640 | // -3 if it redefined a macro and hid a Global macro
|
---|
641 | // -4 if no macroname was supplied
|
---|
642 | int displayclass::setdefaultmacro (text_t package, const text_t ¯oname,
|
---|
643 | text_t params, const text_t ¯ovalue)
|
---|
644 | {
|
---|
645 | return setdefaultmacro (macroname, package, params, macrovalue, "memory");
|
---|
646 | }
|
---|
647 |
|
---|
648 |
|
---|
649 |
|
---|
650 | // loads a default macro file (if it isn't already loaded)
|
---|
651 | // returns 0 if didn't need to load the file (it was already loaded)
|
---|
652 | // 1 if was (re)loaded
|
---|
653 | // -1 an error occurred while trying to load the file
|
---|
654 | int displayclass::loaddefaultmacros (text_t thisfilename)
|
---|
655 | {
|
---|
656 | // convert the filename to a C string
|
---|
657 | char *filenamestr = thisfilename.getcstr();
|
---|
658 | outconvertclass text_t2ascii;
|
---|
659 |
|
---|
660 | // see if we need to open this file -- this isn't implemented yet
|
---|
661 |
|
---|
662 | // open the file
|
---|
663 | ifstream fin(filenamestr);
|
---|
664 | if (fin.fail()) return -1; // read failed
|
---|
665 |
|
---|
666 | text_t package = "Global";
|
---|
667 | int line = 1;
|
---|
668 | char c = my_get(fin, line); // pre-fetch the next character
|
---|
669 |
|
---|
670 | text_t macropackage, macroname, macroparameters, macrovalue;
|
---|
671 | int err; // for keeping track of whether an error occurred somewhere
|
---|
672 |
|
---|
673 | while (!fin.eof())
|
---|
674 | {
|
---|
675 | // expect: white space, comment, "package", or macroname
|
---|
676 | if (my_isspace(c))
|
---|
677 | {
|
---|
678 | // found some white-space
|
---|
679 | c = my_get(fin, line);
|
---|
680 | }
|
---|
681 | else if (c == '#')
|
---|
682 | {
|
---|
683 | // found the start of a comment
|
---|
684 | // skip all characters up to the end of the line
|
---|
685 | c = my_get(fin, line); // skip the '#'
|
---|
686 | while (!fin.eof ())
|
---|
687 | {
|
---|
688 | if (c == '\n') break;
|
---|
689 | c = my_get(fin, line);
|
---|
690 | }
|
---|
691 |
|
---|
692 | }
|
---|
693 | else if (c == 'p')
|
---|
694 | {
|
---|
695 | // found the start of 'package' (hopefully)
|
---|
696 | // get everything up to the next space
|
---|
697 | text_t tmp;
|
---|
698 | while (!fin.eof() && my_isalpha(c))
|
---|
699 | {
|
---|
700 | tmp.push_back((unsigned char)c);
|
---|
701 | c = my_get(fin, line);
|
---|
702 | }
|
---|
703 | // see if we have a package name
|
---|
704 | if (tmp == "package")
|
---|
705 | {
|
---|
706 | // skip all white space
|
---|
707 | while (!fin.eof() && my_isspace(c))
|
---|
708 | c = my_get(fin, line);
|
---|
709 |
|
---|
710 | // get the package name
|
---|
711 | tmp.clear(); // init tmp
|
---|
712 | while (!fin.eof() && my_isalpha(c))
|
---|
713 | {
|
---|
714 | tmp.push_back((unsigned char)c);
|
---|
715 | c = my_get(fin, line);
|
---|
716 | }
|
---|
717 | package = to_uni(tmp); // convert from utf-8 to unicode
|
---|
718 | if (package.empty()) package = "Global";
|
---|
719 |
|
---|
720 | }
|
---|
721 | else
|
---|
722 | {
|
---|
723 | // error
|
---|
724 | if (logout != NULL) {
|
---|
725 | (*logout) << "Expected 'package' on line " << line << "\n";
|
---|
726 | }
|
---|
727 | }
|
---|
728 |
|
---|
729 | }
|
---|
730 | else if (c == '_')
|
---|
731 | {
|
---|
732 | // found the start of a macro (hopefully)
|
---|
733 | c = my_get(fin, line); // skip the _
|
---|
734 |
|
---|
735 | // init variables
|
---|
736 | err = 0;
|
---|
737 | macropackage = package;
|
---|
738 | macroname.clear(); // init macroname
|
---|
739 | macroparameters.clear(); // init macroname
|
---|
740 | macrovalue.clear(); // init macroname
|
---|
741 |
|
---|
742 | // get the macro name
|
---|
743 | while ((!fin.eof()) && (!my_isspace(c)) &&
|
---|
744 | (c != '\\') && (c != '_') &&(c != ':') &&
|
---|
745 | (macroname.size() < 80))
|
---|
746 | {
|
---|
747 | macroname.push_back((unsigned char)c);
|
---|
748 | c = my_get(fin, line);
|
---|
749 | }
|
---|
750 | macroname = to_uni(macroname); // convert from utf-8 to unicode
|
---|
751 |
|
---|
752 | if (c == ':')
|
---|
753 | {
|
---|
754 | // we actually had the macro package
|
---|
755 | c = my_get(fin, line); // skip :
|
---|
756 | macropackage = macroname;
|
---|
757 | macroname.clear ();
|
---|
758 |
|
---|
759 | // get the macro name (honest!)
|
---|
760 | while ((!fin.eof()) && (!my_isspace(c)) &&
|
---|
761 | (c != '\\') && (c != '_') &&(c != ':') &&
|
---|
762 | (macroname.size() < 80))
|
---|
763 | {
|
---|
764 | macroname.push_back((unsigned char)c);
|
---|
765 | c = my_get(fin, line);
|
---|
766 | }
|
---|
767 | macroname = to_uni(macroname); // convert from utf-8 to unicode
|
---|
768 | }
|
---|
769 |
|
---|
770 | if (!err && c == '_') {
|
---|
771 | c = my_get(fin, line); // skip the _
|
---|
772 |
|
---|
773 | // skip all white space
|
---|
774 | while (!fin.eof() && my_isspace(c)) c = my_get(fin, line);
|
---|
775 | } else if (!err) err = 1;
|
---|
776 |
|
---|
777 | // get the macro parameters (optional)
|
---|
778 | if (!err && c == '[')
|
---|
779 | {
|
---|
780 | c = my_get(fin, line); // skip the [
|
---|
781 | while ((!fin.eof()) && (c != '\n') && (c != '\\') && (c != ']'))
|
---|
782 | {
|
---|
783 | macroparameters.push_back((unsigned char)c);
|
---|
784 | c = my_get(fin, line);
|
---|
785 | }
|
---|
786 | macroparameters = to_uni(macroparameters);
|
---|
787 |
|
---|
788 | if (c == ']')
|
---|
789 | {
|
---|
790 | c = my_get(fin, line); // skip the ]
|
---|
791 |
|
---|
792 | // skip all white space
|
---|
793 | while (!fin.eof() && my_isspace(c)) c = my_get(fin, line);
|
---|
794 | }
|
---|
795 | else if (!err) err = 2;
|
---|
796 | }
|
---|
797 |
|
---|
798 | // get the macro value
|
---|
799 | if (!err && c == '{')
|
---|
800 | {
|
---|
801 | c = my_get(fin, line); // skip the {
|
---|
802 | while ((!fin.eof()) && (c != '}'))
|
---|
803 | {
|
---|
804 | if (c == '\\')
|
---|
805 | {
|
---|
806 | macrovalue.push_back((unsigned char)c); // keep the '\'
|
---|
807 | c = my_get(fin, line); // store the *next* value regardless
|
---|
808 | if (!fin.eof()) macrovalue.push_back((unsigned char)c);
|
---|
809 | c = my_get(fin, line);
|
---|
810 | }
|
---|
811 | macrovalue.push_back((unsigned char)c);
|
---|
812 | c = my_get(fin, line);
|
---|
813 | }
|
---|
814 | macrovalue = to_uni(macrovalue);
|
---|
815 |
|
---|
816 | if (c == '}')
|
---|
817 | {
|
---|
818 | c = my_get(fin, line); // skip the }
|
---|
819 |
|
---|
820 | // define the macro
|
---|
821 | err = setdefaultmacro (macropackage, macroname, macroparameters,
|
---|
822 | thisfilename, macrovalue);
|
---|
823 | if ((err == -1 || err == -3) && logout != NULL)
|
---|
824 | {
|
---|
825 | (*logout) << text_t2ascii << "Warning: redefinition of _" <<
|
---|
826 | package << ":" << macroname << "_[" << macroparameters <<
|
---|
827 | "] on line ";
|
---|
828 | (*logout) << line;
|
---|
829 | (*logout) << text_t2ascii << " of " << thisfilename << "\n";
|
---|
830 |
|
---|
831 | }
|
---|
832 | else if (err == -2 && logout != NULL)
|
---|
833 | {
|
---|
834 | (*logout) << text_t2ascii << "Warning: _" <<
|
---|
835 | package << ":" << macroname << "_[" << macroparameters <<
|
---|
836 | "] on line ";
|
---|
837 | (*logout) << line;
|
---|
838 | (*logout) << text_t2ascii << " of " <<
|
---|
839 | thisfilename << " hides a Global macro with the same name\n";
|
---|
840 | }
|
---|
841 | else if (err == -4 && logout != NULL)
|
---|
842 | {
|
---|
843 | (*logout) << text_t2ascii << "Error: macro name expected on line ";
|
---|
844 | (*logout) << line ;
|
---|
845 | (*logout) << text_t2ascii << " of " << thisfilename << "\n";
|
---|
846 | }
|
---|
847 |
|
---|
848 | err = 0; // for the test below
|
---|
849 | }
|
---|
850 | else if (!err) err = 3;
|
---|
851 | }
|
---|
852 | else if (!err) err = 4;
|
---|
853 |
|
---|
854 | if (err)
|
---|
855 | {
|
---|
856 | // found an error, skip to the end of the line
|
---|
857 | if (logout != NULL) {
|
---|
858 | (*logout) << text_t2ascii << "Error: ";
|
---|
859 | if (err == 1) (*logout) << text_t2ascii << "'_'";
|
---|
860 | else if (err == 2) (*logout) << text_t2ascii << "']'";
|
---|
861 | else if (err == 3) (*logout) << text_t2ascii << "'}'";
|
---|
862 | else if (err == 4) (*logout) << text_t2ascii << "'{'";
|
---|
863 | (*logout) << text_t2ascii << " expected on line ";
|
---|
864 | (*logout) << line ;
|
---|
865 | (*logout) << text_t2ascii << " of " << thisfilename << "\n";
|
---|
866 | }
|
---|
867 | while (!fin.eof ())
|
---|
868 | {
|
---|
869 | if (c == '\n') break;
|
---|
870 | c = my_get(fin, line);
|
---|
871 | }
|
---|
872 | }
|
---|
873 |
|
---|
874 | }
|
---|
875 | else
|
---|
876 | {
|
---|
877 | // found an error, skip to the end of the line
|
---|
878 | if (logout != NULL) {
|
---|
879 | (*logout) << "Error: Unexpected input on line " << line << "\n";
|
---|
880 | }
|
---|
881 | while (!fin.eof ())
|
---|
882 | {
|
---|
883 | if (c == '\n') break;
|
---|
884 | c = my_get(fin, line);
|
---|
885 | }
|
---|
886 |
|
---|
887 | }
|
---|
888 | }
|
---|
889 |
|
---|
890 | fin.close ();
|
---|
891 |
|
---|
892 | // free up memory
|
---|
893 | delete filenamestr;
|
---|
894 | return 0;
|
---|
895 | }
|
---|
896 |
|
---|
897 |
|
---|
898 | // prepares to create a page.
|
---|
899 | void displayclass::openpage (const text_t &thispageparams,
|
---|
900 | const text_t &thisprecedence)
|
---|
901 | {
|
---|
902 | // init variables
|
---|
903 | currentmacros->clear();
|
---|
904 |
|
---|
905 | // reload any default macro files which have changed.
|
---|
906 | if (checkdefaultmacrofiles() < 0)
|
---|
907 | {
|
---|
908 | // print error message
|
---|
909 | }
|
---|
910 |
|
---|
911 | setpageparams (thispageparams, thisprecedence);
|
---|
912 | }
|
---|
913 |
|
---|
914 |
|
---|
915 | // changes the parameters for the current page.
|
---|
916 | void displayclass::setpageparams (text_t thispageparams,
|
---|
917 | text_t thisprecedence)
|
---|
918 | {
|
---|
919 | paramhashtype thissplitparams, splittheseparams;
|
---|
920 | precedencetype precedhash;
|
---|
921 | text_tset::iterator text_tsetit;
|
---|
922 | paramspec tmpps;
|
---|
923 |
|
---|
924 | precedence = thisprecedence;
|
---|
925 | calcprecedence(thisprecedence, precedhash);
|
---|
926 |
|
---|
927 | splitparams(thispageparams, thissplitparams);
|
---|
928 | joinparams(thissplitparams, thispageparams);
|
---|
929 | params = thispageparams;
|
---|
930 |
|
---|
931 | // get a list of parameters with their specificness
|
---|
932 | orderparamlist->erase(orderparamlist->begin(), orderparamlist->end());
|
---|
933 | for (text_tsetit=allparams.begin();
|
---|
934 | text_tsetit!=allparams.end();
|
---|
935 | text_tsetit++)
|
---|
936 | {
|
---|
937 | tmpps.param = (*text_tsetit);
|
---|
938 | splitparams(tmpps.param, splittheseparams);
|
---|
939 | tmpps.spec = getspecificness(thissplitparams, splittheseparams, precedhash);
|
---|
940 | if (tmpps.spec >= 0)
|
---|
941 | {
|
---|
942 | orderparamlist->push_back (tmpps);
|
---|
943 | }
|
---|
944 | }
|
---|
945 |
|
---|
946 | // sort the list
|
---|
947 | sort(orderparamlist->begin(), orderparamlist->end());
|
---|
948 |
|
---|
949 | // paramspeclist::iterator pshere = orderparamlist->begin();
|
---|
950 | // paramspeclist::iterator psend = orderparamlist->end();
|
---|
951 | // while (pshere != psend)
|
---|
952 | // {
|
---|
953 | // cerr << text_t2ascii << "param=" << (*pshere).param;
|
---|
954 | // cerr << " spec=" << (int)((*pshere).spec) << "\n";
|
---|
955 | // pshere++;
|
---|
956 | // }
|
---|
957 | }
|
---|
958 |
|
---|
959 |
|
---|
960 | // overrides (or sets) a macro for the current page.
|
---|
961 | // returns 0 if there was no error,
|
---|
962 | // -1 if it redefined a macro
|
---|
963 | // -4 if no macroname was supplied
|
---|
964 | int displayclass::setmacro (const text_t ¯oname,
|
---|
965 | text_t package,
|
---|
966 | const text_t ¯ovalue)
|
---|
967 | {
|
---|
968 | // make sure a macroname was supplied
|
---|
969 | if (macroname.empty()) return -4;
|
---|
970 |
|
---|
971 | // make package "Global" if it doesn't point to anything yet
|
---|
972 | if (package.empty()) package = "Global";
|
---|
973 |
|
---|
974 | // set the macro
|
---|
975 | return currentmacros->setmacro(package, macroname, "memory", macrovalue);
|
---|
976 | }
|
---|
977 |
|
---|
978 |
|
---|
979 | void displayclass::expandstring (const text_t &inputtext, text_t &outputtext)
|
---|
980 | {
|
---|
981 | expandstring("", inputtext, outputtext);
|
---|
982 | }
|
---|
983 |
|
---|
984 |
|
---|
985 | void displayclass::expandstring (text_t package, const text_t &inputtext,
|
---|
986 | text_t &outputtext, int recursiondepth)
|
---|
987 | {
|
---|
988 | text_t macroname, macropackage, macroargs;
|
---|
989 | text_t::const_iterator tthere = inputtext.begin();
|
---|
990 | text_t::const_iterator ttend = inputtext.end();
|
---|
991 | unsigned short c;
|
---|
992 |
|
---|
993 | if (package.empty()) package = "Global";
|
---|
994 |
|
---|
995 | outputtext.clear();
|
---|
996 |
|
---|
997 | // use one-character lookahead
|
---|
998 | if (tthere != ttend) c = (*tthere);
|
---|
999 | while (tthere != ttend)
|
---|
1000 | {
|
---|
1001 | if (c == '\\')
|
---|
1002 | {
|
---|
1003 | // found an escape character
|
---|
1004 | c = my_ttnextchar (tthere, ttend); // skip the escape character
|
---|
1005 | if (tthere != ttend)
|
---|
1006 | {
|
---|
1007 | if (c == 'n') outputtext.push_back('\n');
|
---|
1008 | else if (c == 't') outputtext.push_back('\t');
|
---|
1009 | else outputtext.push_back(c);
|
---|
1010 | }
|
---|
1011 | c = my_ttnextchar (tthere, ttend);
|
---|
1012 |
|
---|
1013 | }
|
---|
1014 | else if (c == '_')
|
---|
1015 | {
|
---|
1016 | // might have found the start of a macro
|
---|
1017 |
|
---|
1018 | // embedded macros (macros within the names
|
---|
1019 | // of other macros) are no longer supported -- Rodger.
|
---|
1020 |
|
---|
1021 | // save the current state (in case we need to back out)
|
---|
1022 | text_t::const_iterator savedtthere = tthere;
|
---|
1023 | unsigned short savedc = c;
|
---|
1024 |
|
---|
1025 | macroname.clear();
|
---|
1026 | macropackage = package;
|
---|
1027 | macroargs.clear();
|
---|
1028 |
|
---|
1029 | c = my_ttnextchar (tthere, ttend); // skip the '_'
|
---|
1030 |
|
---|
1031 | // get the macroname
|
---|
1032 | while (tthere != ttend && (!my_isspace(c)) &&
|
---|
1033 | (c != '\\') && (c != '_') &&(c != ':') &&
|
---|
1034 | (macroname.size() < 80))
|
---|
1035 | {
|
---|
1036 | macroname.push_back((unsigned char)c);
|
---|
1037 | c = my_ttnextchar (tthere, ttend);
|
---|
1038 | }
|
---|
1039 |
|
---|
1040 | if (c == ':')
|
---|
1041 | {
|
---|
1042 | // we actually had the macro package
|
---|
1043 | c = my_ttnextchar (tthere, ttend);
|
---|
1044 | macropackage = macroname;
|
---|
1045 | macroname.clear ();
|
---|
1046 |
|
---|
1047 | // get the macro name (honest!)
|
---|
1048 | while ((tthere != ttend) && (!my_isspace(c)) &&
|
---|
1049 | (c != '\\') && (c != '_') &&(c != ':') &&
|
---|
1050 | (macroname.size() < 80))
|
---|
1051 | {
|
---|
1052 | macroname.push_back((unsigned char)c);
|
---|
1053 | c = my_ttnextchar (tthere, ttend);
|
---|
1054 | }
|
---|
1055 | }
|
---|
1056 |
|
---|
1057 | if ((tthere != ttend) && (c == '_') &&
|
---|
1058 | (macroname.size() > 0))
|
---|
1059 | {
|
---|
1060 | // found a macro!!!! (maybe)
|
---|
1061 |
|
---|
1062 | c = my_ttnextchar (tthere, ttend); // skip the '_'
|
---|
1063 |
|
---|
1064 | // get the parameters (if there are any)
|
---|
1065 | if ((tthere != ttend) && (c == '('))
|
---|
1066 | {
|
---|
1067 | c = my_ttnextchar (tthere, ttend); // skip '('
|
---|
1068 |
|
---|
1069 | // have to be careful of quotes
|
---|
1070 | unsigned short quote = '\0';
|
---|
1071 | while (tthere != ttend)
|
---|
1072 | {
|
---|
1073 | if (c == '\\')
|
---|
1074 | {
|
---|
1075 | // have an escape character, save escape
|
---|
1076 | // character and next character as well
|
---|
1077 | macroargs.push_back (c);
|
---|
1078 | c = my_ttnextchar (tthere, ttend);
|
---|
1079 |
|
---|
1080 | }
|
---|
1081 | else if (quote == '\0')
|
---|
1082 | {
|
---|
1083 | // not in a quote at the moment
|
---|
1084 | if (c == ')')
|
---|
1085 | {
|
---|
1086 | // found end of the arguments
|
---|
1087 | c = my_ttnextchar (tthere, ttend); // skip ')'
|
---|
1088 | break;
|
---|
1089 |
|
---|
1090 | }
|
---|
1091 | else if (c == '\'' || c == '\"')
|
---|
1092 | {
|
---|
1093 | // found a quote
|
---|
1094 | quote = c;
|
---|
1095 | }
|
---|
1096 |
|
---|
1097 | }
|
---|
1098 | else
|
---|
1099 | {
|
---|
1100 | // we are in a quote
|
---|
1101 | if (c == quote) quote = '\0';
|
---|
1102 | }
|
---|
1103 |
|
---|
1104 | // save this character
|
---|
1105 | if (tthere != ttend) macroargs.push_back (c);
|
---|
1106 | c = my_ttnextchar (tthere, ttend);
|
---|
1107 | }
|
---|
1108 | }
|
---|
1109 |
|
---|
1110 | //
|
---|
1111 | // we now have the macropackage, macroname, and macroargs
|
---|
1112 | //
|
---|
1113 |
|
---|
1114 | // try to expand out this macro
|
---|
1115 | text_t expandedmacro;
|
---|
1116 | if (macro (macroname, macropackage, macroargs, expandedmacro, recursiondepth))
|
---|
1117 | {
|
---|
1118 | // append the expanded macro
|
---|
1119 | outputtext += expandedmacro;
|
---|
1120 | }
|
---|
1121 | else
|
---|
1122 | {
|
---|
1123 | // wasn't a macro
|
---|
1124 | tthere = savedtthere;
|
---|
1125 | c = savedc;
|
---|
1126 | outputtext.push_back(c); // the '_'
|
---|
1127 | c = my_ttnextchar (tthere, ttend);
|
---|
1128 | }
|
---|
1129 |
|
---|
1130 |
|
---|
1131 | }
|
---|
1132 | else
|
---|
1133 | {
|
---|
1134 | // wasn't a macro
|
---|
1135 | tthere = savedtthere;
|
---|
1136 | c = savedc;
|
---|
1137 | outputtext.push_back(c); // the '_'
|
---|
1138 | c = my_ttnextchar (tthere, ttend);
|
---|
1139 | }
|
---|
1140 |
|
---|
1141 | }
|
---|
1142 | else
|
---|
1143 | {
|
---|
1144 | // nothing of interest
|
---|
1145 | outputtext.push_back(c); // the '_'
|
---|
1146 | c = my_ttnextchar (tthere, ttend);
|
---|
1147 | }
|
---|
1148 | }
|
---|
1149 | }
|
---|
1150 |
|
---|
1151 |
|
---|
1152 | // protected methods for display
|
---|
1153 |
|
---|
1154 | // reloads any default macro files which have changed
|
---|
1155 | // returns 0 no errors occurred
|
---|
1156 | // -1 an error occurred while trying to load one of the files
|
---|
1157 | int displayclass::checkdefaultmacrofiles ()
|
---|
1158 | {
|
---|
1159 | // this isn't implemented yet
|
---|
1160 | return 0;
|
---|
1161 | }
|
---|
1162 |
|
---|
1163 | // isdefaultmacro sees if there is an entry in the list of
|
---|
1164 | // default macros with the given package and macro name
|
---|
1165 | // returns 0 if no macros in the package or in the global package
|
---|
1166 | // were found
|
---|
1167 | // 1 if no macros in the package were found but a macro
|
---|
1168 | // in the global package was found
|
---|
1169 | // 2 if a macro in the given package was found
|
---|
1170 | int displayclass::isdefaultmacro (text_t package, const text_t ¯oname) {
|
---|
1171 | // make sure a macroname was supplied
|
---|
1172 | if (macroname.empty()) return 0;
|
---|
1173 |
|
---|
1174 | // make package "Global" if it doesn't point to anything yet
|
---|
1175 | if (package.empty()) package = "Global";
|
---|
1176 |
|
---|
1177 | // check the given package
|
---|
1178 | if (defaultmacros->macro_find(package, macroname) != NULL) return 2;
|
---|
1179 |
|
---|
1180 | // check the Global package
|
---|
1181 | if (defaultmacros->macro_find("Global", macroname) != NULL) return 1;
|
---|
1182 |
|
---|
1183 | return 0;
|
---|
1184 | }
|
---|
1185 |
|
---|
1186 |
|
---|
1187 | // setdefaultmacro adds an entry to the list of default macros
|
---|
1188 | // returns 0 if there was no error,
|
---|
1189 | // -1 if it redefined a macro
|
---|
1190 | // -2 if it hid a Global macro
|
---|
1191 | // -3 if it redefined a macro and hid a Global macro
|
---|
1192 | // -4 if no macroname was supplied
|
---|
1193 | int displayclass::setdefaultmacro (text_t package, const text_t ¯oname,
|
---|
1194 | text_t params, const text_t &filename,
|
---|
1195 | const text_t ¯ovalue)
|
---|
1196 | {
|
---|
1197 | // make sure a macroname was supplied
|
---|
1198 | if (macroname.empty()) return -4;
|
---|
1199 |
|
---|
1200 | // put the parameters in a standard form
|
---|
1201 | paramhashtype paramhash;
|
---|
1202 | if (params.empty()) params = "ignore=yes";
|
---|
1203 | splitparams (params, paramhash);
|
---|
1204 | joinparams (paramhash, params);
|
---|
1205 |
|
---|
1206 | // make package "Global" if it doesn't point to anything yet
|
---|
1207 | if (package.empty()) package = "Global";
|
---|
1208 |
|
---|
1209 | // remember these parameters
|
---|
1210 | allparams.insert (params);
|
---|
1211 |
|
---|
1212 | // remember this filename (this part isn't finished yet -- Rodger).
|
---|
1213 |
|
---|
1214 | // set the macro
|
---|
1215 | return defaultmacros->setmacro(package, macroname, params, filename, macrovalue);
|
---|
1216 | }
|
---|
1217 |
|
---|
1218 |
|
---|
1219 | // evaluates a boolean expression
|
---|
1220 | // returns false if expr equals "" or "0".
|
---|
1221 | // otherwise returns true *unless* expr is
|
---|
1222 | // format "XXXX" eq/ne "dddd" in which case
|
---|
1223 | // the two quoted strings are compared
|
---|
1224 | bool displayclass::boolexpr (text_t package, const text_t &expr, int recursiondepth) {
|
---|
1225 |
|
---|
1226 | if (expr.empty()) return false;
|
---|
1227 |
|
---|
1228 | text_t expexpr;
|
---|
1229 | if (package.empty()) package = "Global";
|
---|
1230 | expandstring (package, expr, expexpr, recursiondepth);
|
---|
1231 |
|
---|
1232 | if (expexpr.empty() || expexpr == "0") return false;
|
---|
1233 | if (expr[0] != '\"') return true;
|
---|
1234 |
|
---|
1235 | // don't use expexpr while separating quoted parts of
|
---|
1236 | // expression just in case expanded out macros contain
|
---|
1237 | // quotes
|
---|
1238 | text_t::const_iterator here = expr.begin();
|
---|
1239 | text_t::const_iterator end = expr.end();
|
---|
1240 |
|
---|
1241 | int quotecount = 0;
|
---|
1242 | text_t string1, expstring1;
|
---|
1243 | text_t string2, expstring2;
|
---|
1244 | text_t op;
|
---|
1245 | while (here != end) {
|
---|
1246 | if (*here == '"') quotecount++;
|
---|
1247 | else if (quotecount == 1) string1.push_back(*here);
|
---|
1248 | else if ((quotecount == 2) && (*here != ' ') && (*here != '\n'))
|
---|
1249 | op.push_back(*here);
|
---|
1250 | else if (quotecount == 3) string2.push_back(*here);
|
---|
1251 | else if (quotecount == 4) break;
|
---|
1252 | here ++;
|
---|
1253 | }
|
---|
1254 |
|
---|
1255 | expandstring (package, string1, expstring1, recursiondepth);
|
---|
1256 | expandstring (package, string2, expstring2, recursiondepth);
|
---|
1257 |
|
---|
1258 | if (op == "eq")
|
---|
1259 | if (expstring1 == expstring2) return true;
|
---|
1260 | else return false;
|
---|
1261 | else if (op == "ne")
|
---|
1262 | if (expstring1 != expstring2) return true;
|
---|
1263 | else return false;
|
---|
1264 | else
|
---|
1265 | return true; // any badly formatted string will return true
|
---|
1266 | }
|
---|
1267 |
|
---|
1268 |
|
---|
1269 | // (recursively) expand out a macro
|
---|
1270 | // returns true if the macro was found
|
---|
1271 | // false if the macro was not found
|
---|
1272 | bool displayclass::macro (const text_t ¯oname, text_t macropackage,
|
---|
1273 | const text_t ¯oparam, text_t &outputtext,
|
---|
1274 | int recursiondepth)
|
---|
1275 | {
|
---|
1276 | outconvertclass text_t2ascii;
|
---|
1277 | text_tlist splitmacroparam;
|
---|
1278 | text_t::const_iterator hereit, endit;
|
---|
1279 | text_t aparam;
|
---|
1280 | unsigned short c, quote;
|
---|
1281 |
|
---|
1282 | // cerr << "r: " << recursiondepth << "\n";
|
---|
1283 |
|
---|
1284 | // check for deep recursion
|
---|
1285 | if (recursiondepth >= MAXRECURSIONDEPTH)
|
---|
1286 | {
|
---|
1287 | if (logout != NULL)
|
---|
1288 | (*logout) << "Warning: deep recursion, limiting macro expansion\n";
|
---|
1289 | return false;
|
---|
1290 | }
|
---|
1291 |
|
---|
1292 | // check the macropackage
|
---|
1293 | if (macropackage.empty()) macropackage = "Global";
|
---|
1294 |
|
---|
1295 | // get the parameters (but don't expand them)
|
---|
1296 | if (macroparam.size() > 0) {
|
---|
1297 | // set up for loop
|
---|
1298 | hereit = macroparam.begin();
|
---|
1299 | endit = macroparam.end();
|
---|
1300 | if (hereit != endit) c = (*hereit);
|
---|
1301 |
|
---|
1302 | while (hereit != endit) {
|
---|
1303 | // get the next parameter
|
---|
1304 | aparam.clear();
|
---|
1305 | quote = '\0'; // not-quoted unless proven quoted
|
---|
1306 |
|
---|
1307 | // ignore initial whitespace
|
---|
1308 | while ((hereit!=endit)&&my_isspace(c)) c=my_ttnextchar(hereit,endit);
|
---|
1309 |
|
---|
1310 | // look for the end of the parameter
|
---|
1311 | while (hereit != endit) {
|
---|
1312 | if (c == '\\') {
|
---|
1313 | // found escape character, also get next character
|
---|
1314 | aparam.push_back(c);
|
---|
1315 | c = my_ttnextchar (hereit, endit);
|
---|
1316 | if (hereit != endit) aparam.push_back(c);
|
---|
1317 |
|
---|
1318 | } else if (quote=='\0' && (c=='\'' || c=='"')) {
|
---|
1319 | // found a quoted section
|
---|
1320 | quote = c;
|
---|
1321 | aparam.push_back(c);
|
---|
1322 |
|
---|
1323 | } else if (quote!='\0' && c==quote) {
|
---|
1324 | // found the end of a quote
|
---|
1325 | quote = '\0';
|
---|
1326 | aparam.push_back(c);
|
---|
1327 |
|
---|
1328 | } else if (quote=='\0' && c==',') {
|
---|
1329 | // found the end of a parameter
|
---|
1330 | c = my_ttnextchar (hereit, endit);
|
---|
1331 | break;
|
---|
1332 |
|
---|
1333 | } else {
|
---|
1334 | // ordinary character
|
---|
1335 | aparam.push_back(c);
|
---|
1336 | }
|
---|
1337 |
|
---|
1338 | c = my_ttnextchar (hereit, endit);
|
---|
1339 | }
|
---|
1340 |
|
---|
1341 | // add this parameter to the list
|
---|
1342 | splitmacroparam.push_back(aparam);
|
---|
1343 | }
|
---|
1344 | }
|
---|
1345 |
|
---|
1346 | if (macroname == "If") {
|
---|
1347 | // get the condition, then clause and else clause
|
---|
1348 | text_tlist::iterator paramcond = splitmacroparam.begin();
|
---|
1349 | text_tlist::iterator paramend = splitmacroparam.end();
|
---|
1350 | text_tlist::iterator paramthen = paramend;
|
---|
1351 | text_tlist::iterator paramelse = paramend;
|
---|
1352 |
|
---|
1353 | if (paramcond != paramend) {
|
---|
1354 | paramthen = paramcond;
|
---|
1355 | paramthen++;
|
---|
1356 | }
|
---|
1357 | if (paramthen != paramend) {
|
---|
1358 | paramelse = paramthen;
|
---|
1359 | paramelse++;
|
---|
1360 | }
|
---|
1361 |
|
---|
1362 | // will always output something
|
---|
1363 | outputtext.clear();
|
---|
1364 |
|
---|
1365 | // expand out the first parameter
|
---|
1366 | if (paramcond != paramend) {
|
---|
1367 | text_t tmpoutput;
|
---|
1368 | expandstring (macropackage, *paramcond, tmpoutput, recursiondepth+1);
|
---|
1369 | lc (tmpoutput);
|
---|
1370 |
|
---|
1371 | // test the expanded string
|
---|
1372 | if (boolexpr (macropackage, *paramcond, recursiondepth+1)) {
|
---|
1373 | //(tmpoutput.size()) && (tmpoutput != "false") && (tmpoutput != "0")) {
|
---|
1374 | // true
|
---|
1375 | if (paramthen != paramend)
|
---|
1376 | expandstring (macropackage, *paramthen, outputtext, recursiondepth+1);
|
---|
1377 |
|
---|
1378 | } else {
|
---|
1379 | // false
|
---|
1380 | if (paramelse != paramend)
|
---|
1381 | expandstring (macropackage, *paramelse, outputtext, recursiondepth+1);
|
---|
1382 | }
|
---|
1383 | }
|
---|
1384 |
|
---|
1385 | return true;
|
---|
1386 | }
|
---|
1387 |
|
---|
1388 | // try and find this macro
|
---|
1389 |
|
---|
1390 | // this list might be replaced by something a little more
|
---|
1391 | // sophisticated in the future.
|
---|
1392 | text_tlist packagelist;
|
---|
1393 | packagelist.push_back (macropackage);
|
---|
1394 | packagelist.push_back ("Global");
|
---|
1395 |
|
---|
1396 | paramspeclist::iterator paramhere, paramend;
|
---|
1397 | text_tlist::iterator packagehere = packagelist.begin();
|
---|
1398 | text_tlist::iterator packageend = packagelist.end();
|
---|
1399 | mvalue *macrovalue = NULL;
|
---|
1400 | while ((macrovalue == NULL) && (packagehere != packageend))
|
---|
1401 | {
|
---|
1402 | // first look in the currentmacros
|
---|
1403 | macrovalue = currentmacros->macro_find(*packagehere, macroname);
|
---|
1404 | if (macrovalue == NULL)
|
---|
1405 | macrovalue = currentmacros->macro_find("Style", macroname);
|
---|
1406 |
|
---|
1407 | // look in the default macros
|
---|
1408 | if (macrovalue == NULL)
|
---|
1409 | {
|
---|
1410 | // next look in the defaultmacros
|
---|
1411 | if (defaultmacros->macro_find (*packagehere, macroname) != NULL)
|
---|
1412 | {
|
---|
1413 | paramhere = orderparamlist->begin(); paramend = orderparamlist->end();
|
---|
1414 | while ((macrovalue == NULL) && (paramhere != paramend))
|
---|
1415 | {
|
---|
1416 | // cerr << text_t2ascii << "\npackage: " << *packagehere << "\n";
|
---|
1417 | // cerr << text_t2ascii << "macroname: " << macroname << "\n";
|
---|
1418 | // cerr << text_t2ascii << "param: " << (*paramhere).param << "\n";
|
---|
1419 | // cerr << "spec: " << (int)((*paramhere).spec) << "\n";
|
---|
1420 | macrovalue = defaultmacros->parameter_find(*packagehere, macroname,
|
---|
1421 | (*paramhere).param);
|
---|
1422 | paramhere++;
|
---|
1423 | }
|
---|
1424 | }
|
---|
1425 | }
|
---|
1426 |
|
---|
1427 | // and again in the package "Style"
|
---|
1428 | if (macrovalue == NULL)
|
---|
1429 | {
|
---|
1430 | // next look in the defaultmacros
|
---|
1431 | if (defaultmacros->macro_find ("Style", macroname) != NULL)
|
---|
1432 | {
|
---|
1433 | paramhere = orderparamlist->begin(); paramend = orderparamlist->end();
|
---|
1434 | while ((macrovalue == NULL) && (paramhere != paramend))
|
---|
1435 | {
|
---|
1436 | macrovalue = defaultmacros->parameter_find("Style", macroname,
|
---|
1437 | (*paramhere).param);
|
---|
1438 | paramhere++;
|
---|
1439 | }
|
---|
1440 | }
|
---|
1441 | }
|
---|
1442 | if (macrovalue == NULL) packagehere++;
|
---|
1443 | }
|
---|
1444 |
|
---|
1445 | if (macrovalue != NULL)
|
---|
1446 | {
|
---|
1447 | // we found a macro
|
---|
1448 |
|
---|
1449 | // replace all the option macros (_1_, _2_, ...) in the
|
---|
1450 | // value of this macro
|
---|
1451 | text_t tempmacrovalue;
|
---|
1452 | tempmacrovalue.clear();
|
---|
1453 | hereit = macrovalue->value.begin();
|
---|
1454 | endit = macrovalue->value.end();
|
---|
1455 | if (hereit != endit) c = (*hereit);
|
---|
1456 | while (hereit != endit)
|
---|
1457 | {
|
---|
1458 | if (c == '\\')
|
---|
1459 | {
|
---|
1460 | // found an escape character
|
---|
1461 | tempmacrovalue.push_back(c);
|
---|
1462 | c = my_ttnextchar (hereit, endit);
|
---|
1463 | if (hereit != endit) tempmacrovalue.push_back(c);
|
---|
1464 | c = my_ttnextchar (hereit, endit);
|
---|
1465 | }
|
---|
1466 | else if (c == '_')
|
---|
1467 | {
|
---|
1468 | text_t::const_iterator savedhereit = hereit;
|
---|
1469 | unsigned short c2 = my_ttnextchar (hereit, endit);
|
---|
1470 | unsigned short c3 = my_ttnextchar (hereit, endit);
|
---|
1471 | if ((c2 >= '1') && (c2 <= '9') && (c3 == '_'))
|
---|
1472 | {
|
---|
1473 | // found an option macro, append the appropriate text
|
---|
1474 | text_tlist::iterator ttlisthere = splitmacroparam.begin();
|
---|
1475 | text_tlist::iterator ttlistend = splitmacroparam.end();
|
---|
1476 | while ((c2 > '1') && (ttlisthere != ttlistend))
|
---|
1477 | {
|
---|
1478 | c2--;
|
---|
1479 | ttlisthere++;
|
---|
1480 | }
|
---|
1481 | if (ttlisthere != ttlistend)
|
---|
1482 | tempmacrovalue.append(*ttlisthere);
|
---|
1483 |
|
---|
1484 | c = my_ttnextchar (hereit, endit);
|
---|
1485 |
|
---|
1486 | }
|
---|
1487 | else
|
---|
1488 | {
|
---|
1489 | // wasn't a option macro
|
---|
1490 | tempmacrovalue.push_back(c);
|
---|
1491 | hereit = savedhereit;
|
---|
1492 | c = my_ttnextchar (hereit, endit);
|
---|
1493 | }
|
---|
1494 | }
|
---|
1495 | else
|
---|
1496 | {
|
---|
1497 | tempmacrovalue.push_back(c);
|
---|
1498 | c = my_ttnextchar (hereit, endit);
|
---|
1499 | }
|
---|
1500 | }
|
---|
1501 |
|
---|
1502 | // recursively replace this macro
|
---|
1503 | expandstring (*packagehere, tempmacrovalue, outputtext, recursiondepth+1);
|
---|
1504 |
|
---|
1505 | return true;
|
---|
1506 | }
|
---|
1507 |
|
---|
1508 | if (logout != NULL) {
|
---|
1509 | (*logout) << text_t2ascii << "Warning: _" <<
|
---|
1510 | macropackage << ":" << macroname << "_ not found\n";
|
---|
1511 | }
|
---|
1512 |
|
---|
1513 | return false; // didn't find the macro
|
---|
1514 | }
|
---|
1515 |
|
---|
1516 |
|
---|
1517 | void displayclass::printdefaultmacros ()
|
---|
1518 | {
|
---|
1519 | defpackagemap::const_iterator packagemapit;
|
---|
1520 | defmacromap::const_iterator macromapit;
|
---|
1521 | defparammap::const_iterator parammapit;
|
---|
1522 | const mvalue *mvalueptr;
|
---|
1523 | outconvertclass text_t2ascii;
|
---|
1524 |
|
---|
1525 | text_t packagename, macroname, macroparam;
|
---|
1526 |
|
---|
1527 | for (packagemapit = defaultmacros->package_begin();
|
---|
1528 | packagemapit != defaultmacros->package_end();
|
---|
1529 | packagemapit++)
|
---|
1530 | {
|
---|
1531 | packagename = (*packagemapit).first;
|
---|
1532 | // cerr << "***package : \"" << packagename << "\"\n";
|
---|
1533 |
|
---|
1534 | for (macromapit = (*packagemapit).second.begin();
|
---|
1535 | macromapit != (*packagemapit).second.end();
|
---|
1536 | macromapit++)
|
---|
1537 | {
|
---|
1538 | macroname = (*macromapit).first;
|
---|
1539 | // cerr << "***macroname : \"" << macroname << "\"\n";
|
---|
1540 |
|
---|
1541 | for (parammapit = (*macromapit).second.begin();
|
---|
1542 | parammapit != (*macromapit).second.end();
|
---|
1543 | parammapit++)
|
---|
1544 | {
|
---|
1545 | macroparam = (*parammapit).first;
|
---|
1546 | mvalueptr = &((*parammapit).second);
|
---|
1547 | cerr << text_t2ascii << "package : \"" << packagename << "\"\n";
|
---|
1548 | cerr << text_t2ascii << "macroname : \"" << macroname << "\"\n";
|
---|
1549 | cerr << text_t2ascii << "parameters: [" << macroparam << "]\n";
|
---|
1550 | cerr << text_t2ascii << "filename : \"" << mvalueptr->filename << "\"\n";
|
---|
1551 | cerr << text_t2ascii << "value : {" << mvalueptr->value << "}\n\n";
|
---|
1552 | }
|
---|
1553 | }
|
---|
1554 | }
|
---|
1555 | }
|
---|
1556 |
|
---|
1557 | void displayclass::printallparams ()
|
---|
1558 | {
|
---|
1559 | text_tset::iterator text_tsetit;
|
---|
1560 | outconvertclass text_t2ascii;
|
---|
1561 |
|
---|
1562 | cerr << text_t2ascii << "** allparams\n";
|
---|
1563 | for (text_tsetit=allparams.begin();
|
---|
1564 | text_tsetit!=allparams.end();
|
---|
1565 | text_tsetit++) {
|
---|
1566 | cerr << text_t2ascii << (*text_tsetit) << "\n";
|
---|
1567 | }
|
---|
1568 | cerr << text_t2ascii << "\n";
|
---|
1569 | }
|
---|
1570 |
|
---|
1571 |
|
---|
1572 |
|
---|
1573 | /////////////////////////////////////
|
---|
1574 | // stuff to do tricky output
|
---|
1575 | /////////////////////////////////////
|
---|
1576 |
|
---|
1577 | displayclass &operator<< (outconvertclass &theoutc, displayclass &display)
|
---|
1578 | {
|
---|
1579 | display.setconvertclass (&theoutc);
|
---|
1580 | return display;
|
---|
1581 | }
|
---|
1582 |
|
---|
1583 | displayclass &operator<< (displayclass &display, const text_t &t)
|
---|
1584 | {
|
---|
1585 | outconvertclass *theoutc = display.getconvertclass();
|
---|
1586 |
|
---|
1587 | if (theoutc == NULL) return display;
|
---|
1588 |
|
---|
1589 | text_t output;
|
---|
1590 | display.expandstring (t, output);
|
---|
1591 | (*theoutc) << output;
|
---|
1592 |
|
---|
1593 | return display;
|
---|
1594 | }
|
---|
1595 |
|
---|