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 | * A component of the Greenstone digital library software
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7 | * from the New Zealand Digital Library Project at the
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8 | * University of Waikato, New Zealand.
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9 | *
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10 | * This program is free software; you can redistribute it and/or modify
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11 | * it under the terms of the GNU General Public License as published by
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12 | * the Free Software Foundation; either version 2 of the License, or
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13 | * (at your option) any later version.
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14 | *
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15 | * This program is distributed in the hope that it will be useful,
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16 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
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17 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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18 | * GNU General Public License for more details.
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19 | *
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20 | * You should have received a copy of the GNU General Public License
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21 | * along with this program; if not, write to the Free Software
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22 | * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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23 | *
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24 | * $Id: display.cpp 1217 2000-06-18 22:56:55Z sjboddie $
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25 | *
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26 | *********************************************************************/
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27 |
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28 | /*
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29 | $Log$
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30 | Revision 1.21 2000/06/18 22:56:55 sjboddie
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31 | fixed a bug that I'd introduced earlier when attempting to get things
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32 | compiling on VC++ 6.0 - the gsdl-2.22 release (and possibly 2.21) was
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33 | affected and wouldn't have displayed chinese and Arabic characters
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34 | correctly
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35 |
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36 | Revision 1.20 2000/05/12 03:09:23 sjboddie
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37 | minor modifications to get web library compiling under VC++ 6.0
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38 |
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39 | Revision 1.19 2000/04/06 19:57:58 cs025
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40 | Correcting a correction - reinstated all lib files due to silly
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41 | CVS confusion.
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42 |
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43 | Revision 1.17 2000/02/29 21:00:38 sjboddie
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44 | fixed some compiler warnings
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45 |
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46 | Revision 1.16 1999/11/25 21:53:08 sjboddie
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47 | fixed bug in logout
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48 |
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49 | Revision 1.15 1999/09/24 02:25:35 rjmcnab
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50 | removed limitation on the number of arguments that a macro can have
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51 |
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52 | Revision 1.14 1999/09/07 04:57:41 sjboddie
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53 | added gpl notice
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54 |
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55 | Revision 1.13 1999/08/31 07:59:11 rjmcnab
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56 | Generalised spaces to unicode spaces, added ability to automatically detect
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57 | whether the input file is Unicode or UTF-8 and read the file in the
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58 | appropriate way, and improved the error messages slightly.
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59 |
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60 | Revision 1.12 1999/07/21 20:46:12 rjmcnab
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61 | fixed small bug
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62 |
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63 | Revision 1.11 1999/07/21 07:26:30 rjmcnab
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64 | Added more operators to _If_, changed quoting of parameters so that
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65 | ' can be used to quote but it is removed, and made slight optimisation
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66 | so that macros that don't contain other macros aren't expanded.
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67 |
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68 | Revision 1.10 1999/03/01 20:39:54 sjboddie
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69 |
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70 | Added eq and ne functionality to _If_
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71 |
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72 | Revision 1.9 1999/03/01 01:18:09 sjboddie
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73 |
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74 | Fixed bug in _If_ when value being tested was only one character
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75 | long (e.g. "0" or "1")
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76 |
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77 | Revision 1.8 1999/02/28 23:15:29 rjmcnab
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78 |
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79 | Made _If_ recognise 'false' and '0' as being false.
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80 |
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81 | Revision 1.7 1999/02/08 01:26:11 rjmcnab
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82 |
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83 | Improved the error reporting.
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84 |
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85 | Revision 1.6 1999/01/19 08:30:23 rjmcnab
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86 |
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87 | Added a method to determine whether a macro has been defined.
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88 |
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89 | Revision 1.5 1999/01/19 01:38:12 rjmcnab
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90 |
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91 | Made the source more portable.
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92 |
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93 | Revision 1.4 1999/01/12 01:50:57 rjmcnab
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94 |
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95 | Standard header.
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96 |
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97 | Revision 1.3 1999/01/08 02:33:13 rjmcnab
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98 |
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99 | Added standard header to source files.
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100 |
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101 | */
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102 |
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103 |
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104 | #include "display.h"
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105 | #include "gsdlunicode.h"
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106 | #include "unitool.h"
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107 | #include <assert.h>
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108 |
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109 | // include to get NULL
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110 | #include <stdlib.h>
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111 |
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112 |
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113 |
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114 | /////////////////////////////////////
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115 | // misc classes
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116 | /////////////////////////////////////
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117 |
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118 |
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119 | // precedencetype defines a 'precedence value' for each parameter
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120 | typedef map<text_t, double, lttext_t> precedencetype;
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121 |
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122 |
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123 | // macro value structure
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124 | struct mvalue
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125 | {
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126 | text_t filename;
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127 | text_t value;
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128 | };
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129 |
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130 | inline bool operator==(const mvalue &x, const mvalue &y) {
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131 | return (x.filename==y.filename && x.value==y.value);
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132 | }
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133 |
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134 | inline bool operator<(const mvalue &x, const mvalue &y) {
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135 | return (x.filename<y.filename ||
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136 | (x.filename==y.filename && x.filename<y.filename));
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137 | }
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138 |
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139 |
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140 |
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141 | /////////////////////////////////////
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142 | // stuff for defaultmacros_t
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143 | /////////////////////////////////////
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144 |
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145 | typedef map<text_t, mvalue, lttext_t> defparammap;
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146 | typedef map<text_t, defparammap, lttext_t> defmacromap;
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147 | typedef map<text_t, defmacromap, lttext_t> defpackagemap;
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148 |
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149 | // all methods in defaultmacros_t assume the parameters
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150 | // and packages in a standard form and not empty
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151 | class defaultmacros_t
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152 | {
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153 | protected:
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154 | defpackagemap macros;
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155 |
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156 | public:
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157 | typedef defpackagemap::const_iterator const_package_iterator;
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158 | typedef defpackagemap::size_type package_size_type;
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159 |
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160 | // setmacro returns 0 if there was no error,
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161 | // -1 if it redefined a macro
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162 | // -2 if it hid a Global macro
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163 | // -3 if it redefined a macro and hid a Global macro
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164 | // -4 if either a package, macroname, or params were not supplied
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165 | int setmacro(const text_t &package,
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166 | const text_t ¯oname,
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167 | const text_t ¶ms,
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168 | const text_t &filename,
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169 | const text_t ¯ovalue);
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170 |
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171 | void delmacro(const text_t &package,
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172 | const text_t ¯oname,
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173 | const text_t ¶ms);
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174 |
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175 | void clear () {macros.erase(macros.begin(), macros.end());}
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176 |
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177 | // top level stuff
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178 | const_package_iterator package_begin () const {return macros.begin();}
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179 | const_package_iterator package_end () const {return macros.end();}
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180 | bool package_empty () const {return macros.empty();}
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181 | package_size_type package_size() const {return macros.size();}
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182 |
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183 | // methods to find things
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184 | defmacromap *package_find (const text_t &packagename);
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185 | defparammap *macro_find (const text_t &packagename,
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186 | const text_t ¯oname);
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187 | mvalue *parameter_find (const text_t &packagename,
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188 | const text_t ¯oname,
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189 | const text_t ¶metername);
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190 | };
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191 |
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192 |
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193 | // setmacro returns 0 if there was no error,
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194 | // -1 if it redefined a macro
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195 | // -2 if it hid a Global macro
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196 | // -3 if it redefined a macro and hid a Global macro
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197 | // -4 if either a package, macroname, or params were not supplied
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198 | int defaultmacros_t::setmacro(const text_t &package,
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199 | const text_t ¯oname,
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200 | const text_t ¶ms,
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201 | const text_t &filename,
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202 | const text_t ¯ovalue)
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203 | {
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204 | paramhashtype paramhash;
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205 |
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206 | defmacromap *macromapptr;
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207 | defparammap *parammapptr;
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208 | mvalue *mvalueptr;
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209 |
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210 | int warning = 0;
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211 |
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212 | // check to see if we would be hiding a Global macro with the
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213 | // same name. Note: it doesn't matter what parameters are used
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214 | // a Global macro will still be hid by a non-Global one with
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215 | // the same name.
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216 | if ((package != "Global") &&
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217 | (macro_find ("Global", macroname) != NULL))
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218 | {
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219 | warning -= 2; // found the macroname
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220 | }
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221 |
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222 | // define this macro
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223 | macromapptr = &(macros[package]); // -- package
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224 | parammapptr = &((*macromapptr)[macroname]); // -- macro name
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225 | // -- parameters
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226 | if ((*parammapptr).find(params) != (*parammapptr).end()) {
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227 | warning -= 1; // found the parameters
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228 | }
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229 | mvalueptr = &((*parammapptr)[params]);
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230 |
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231 | // -- value
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232 | (*mvalueptr).filename = filename;
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233 | (*mvalueptr).value = macrovalue;
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234 |
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235 | return warning;
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236 | }
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237 |
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238 | void defaultmacros_t::delmacro(const text_t &package,
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239 | const text_t ¯oname,
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240 | const text_t ¶ms)
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241 | {
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242 | // make sure everything was supplied
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243 | if (package.empty() || macroname.empty() || params.empty()) return;
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244 |
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245 | // find the package and macroname
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246 | defparammap *parammapptr = macro_find(package, macroname);
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247 | if (parammapptr == NULL) return;
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248 |
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249 | // find the parameters
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250 | defparammap::iterator parammapit = parammapptr->find(params);
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251 | if (parammapit == parammapptr->end()) return;
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252 |
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253 | // finally delete this element
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254 | parammapptr->erase(parammapit);
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255 | }
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256 |
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257 | defmacromap *defaultmacros_t::package_find (const text_t &packagename)
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258 | {
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259 | if (packagename.empty()) return NULL;
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260 |
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261 | defpackagemap::iterator it = macros.find(packagename);
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262 | if (it == macros.end()) return NULL;
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263 |
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264 | return &((*it).second);
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265 | }
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266 |
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267 | defparammap *defaultmacros_t::macro_find (const text_t &packagename,
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268 | const text_t ¯oname)
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269 | {
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270 | defmacromap *macromapptr = package_find(packagename);
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271 | if (macromapptr == NULL || macroname.empty()) return NULL;
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272 |
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273 | defmacromap::iterator it = (*macromapptr).find(macroname);
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274 | if (it == (*macromapptr).end()) return NULL;
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275 |
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276 | return &((*it).second);
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277 | }
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278 |
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279 | mvalue *defaultmacros_t::parameter_find (const text_t &packagename,
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280 | const text_t ¯oname,
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281 | const text_t ¶metername)
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282 | {
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283 | defparammap *parammapptr = macro_find(packagename, macroname);
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284 | if (parammapptr == NULL || parametername.empty()) return NULL;
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285 |
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286 | defparammap::iterator it = (*parammapptr).find(parametername);
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287 | if (it == (*parammapptr).end()) return NULL;
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288 |
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289 | return &((*it).second);
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290 | }
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291 |
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292 |
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293 |
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294 | /////////////////////////////////////
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295 | // stuff for currentmacros_t
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296 | /////////////////////////////////////
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297 |
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298 | typedef map<text_t, mvalue, lttext_t> curmacromap;
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299 | typedef map<text_t, curmacromap, lttext_t> curpackagemap;
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300 |
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301 | // all methods in currentmacros_t assume the parameters
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302 | // and packages in a standard form and not empty
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303 | class currentmacros_t
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304 | {
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305 | protected:
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306 | curpackagemap macros;
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307 |
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308 | public:
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309 | typedef curpackagemap::const_iterator const_package_iterator;
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310 | typedef curpackagemap::size_type package_size_type;
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311 |
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312 | // setmacro returns 0 if there was no error,
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313 | // -1 if it redefined a macro
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314 | // -4 if either a package, or macroname were not supplied
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315 | int setmacro(const text_t &package,
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316 | const text_t ¯oname,
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317 | const text_t &filename,
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318 | const text_t ¯ovalue);
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319 |
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320 | void delmacro(const text_t &package,
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321 | const text_t ¯oname);
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322 |
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323 | void clear () {macros.erase(macros.begin(), macros.end());}
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324 |
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325 | // top level stuff
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326 | const_package_iterator package_begin () const {return macros.begin();}
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327 | const_package_iterator package_end () const {return macros.end();}
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328 | bool package_empty () const {return macros.empty();}
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329 | package_size_type package_size() const {return macros.size();}
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330 |
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331 | // methods to find things
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332 | curmacromap *package_find (const text_t &packagename);
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333 | mvalue *macro_find (const text_t &packagename,
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334 | const text_t ¯oname);
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335 | };
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336 |
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337 |
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338 | // setmacro returns 0 if there was no error,
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339 | // -1 if it redefined a macro
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340 | // -4 if either a package, or macroname were not supplied
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341 | int currentmacros_t::setmacro(const text_t &package,
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342 | const text_t ¯oname,
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343 | const text_t &filename,
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344 | const text_t ¯ovalue)
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345 | {
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346 | int warning = 0;
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347 |
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348 | // make sure everything was supplied
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349 | if (package.empty() || macroname.empty()) return -4;
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350 |
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351 | // define this macro
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352 | curmacromap *macromapptr = &(macros[package]);
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353 | if ((*macromapptr).find(macroname) != (*macromapptr).end())
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354 | {
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355 | warning -= 1; // found the macroname
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356 | }
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357 | mvalue *mvalueptr = &((*macromapptr)[macroname]);
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358 |
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359 | // -- value
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360 | (*mvalueptr).filename = filename;
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361 | (*mvalueptr).value = macrovalue;
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362 |
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363 | return warning;
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364 | }
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365 |
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366 | void currentmacros_t::delmacro(const text_t &package,
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367 | const text_t ¯oname)
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368 | {
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369 | // make sure everything was supplied
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370 | if (package.empty() || macroname.empty()) return;
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371 |
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372 | // find the package
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373 | curmacromap *macromapptr = package_find(package);
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374 | if (macromapptr == NULL) return;
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375 |
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376 | // find the macroname
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377 | curmacromap::iterator macromapit = macromapptr->find(macroname);
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378 | if (macromapit == macromapptr->end()) return;
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379 |
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380 | // finally delete this element
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381 | macromapptr->erase(macromapit);
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382 | }
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383 |
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384 | curmacromap *currentmacros_t::package_find (const text_t &packagename)
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385 | {
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386 | if (packagename.empty()) return NULL;
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387 |
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388 | curpackagemap::iterator it = macros.find(packagename);
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389 | if (it == macros.end()) return NULL;
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390 |
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391 | return &((*it).second);
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392 | }
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393 |
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394 | mvalue *currentmacros_t::macro_find (const text_t &packagename,
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395 | const text_t ¯oname)
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396 | {
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397 | curmacromap *macromapptr = package_find(packagename);
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398 | if (macromapptr == NULL || macroname.empty()) return NULL;
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399 |
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400 | curmacromap::iterator it = (*macromapptr).find(macroname);
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401 | if (it == (*macromapptr).end()) return NULL;
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402 |
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403 | return &((*it).second);
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404 | }
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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 | // support functions
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411 | /////////////////////////////////////
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412 |
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413 | // this calculation of precedence will make one occurance of a high
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414 | // precedence item override many occurances of lower precedence items
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415 | void calcprecedence (const text_t &precedstr, precedencetype &precedhash)
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416 | {
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417 | text_t param;
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418 | double multiple = 5.0;
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419 | double nextprec = multiple;
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420 |
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421 | text_t::const_iterator here, end;
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422 |
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423 | // set precedhash to an empty hash
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424 | precedhash.erase(precedhash.begin(), precedhash.end());
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425 |
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426 | // iterate through paramstring ignoring space and extracting
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427 | // out key value pairs.
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428 | here = precedstr.begin();
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429 | end = precedstr.end();
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430 | while (here != end)
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431 | {
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432 | // get the next parameter
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433 | param.clear(); // set param to an empty string
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434 |
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435 | while (here != end)
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436 | {
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437 | if (*here == ',')
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438 | {
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439 | // found the end of the parameter
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440 | here++;
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441 | break;
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442 | }
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443 | else if (*here == ' ')
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444 | {
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445 | // do nothing (ignore spaces)
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446 | }
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447 | else
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448 | {
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449 | // character in parameter
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450 | param.push_back (*here); // copy this character
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451 | }
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452 |
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453 | here++;
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454 | }
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455 |
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456 | // if a parameter was found insert its value
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457 | if (!param.empty())
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458 | {
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459 | precedhash[param] = nextprec;
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460 | nextprec *= multiple;
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461 | }
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462 | }
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463 | }
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464 |
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465 |
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466 | // decides how specific any given parameter is to the page parameters. Returns
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467 | // negative if any options are different or else the sum of the precedence for
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468 | // the options which match.
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469 | double getspecificness(const paramhashtype &pageparams,
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470 | const paramhashtype &theseparams,
|
---|
471 | const precedencetype &precedhash)
|
---|
472 | {
|
---|
473 | double specificness = 0.0;
|
---|
474 | paramhashtype::const_iterator here, pagevalueit;
|
---|
475 | precedencetype::const_iterator precedit;
|
---|
476 | text_t thesekey, thesevalue, constignore("ignore");
|
---|
477 |
|
---|
478 | here = theseparams.begin();
|
---|
479 | while (here != theseparams.end())
|
---|
480 | {
|
---|
481 | thesekey = (*here).first;
|
---|
482 | thesevalue = (*here).second;
|
---|
483 |
|
---|
484 | if (thesekey == constignore)
|
---|
485 | {
|
---|
486 | // do nothing, this is a placeholder
|
---|
487 | }
|
---|
488 | else
|
---|
489 | {
|
---|
490 | pagevalueit = pageparams.find(thesekey);
|
---|
491 | if ((pagevalueit != pageparams.end()) &&
|
---|
492 | ((*pagevalueit).second == thesevalue))
|
---|
493 | {
|
---|
494 | // this parameter fits, add its precedence value
|
---|
495 | precedit = precedhash.find(thesekey);
|
---|
496 | if (precedit == precedhash.end())
|
---|
497 | specificness += 1.0; // no precedence defined
|
---|
498 | else
|
---|
499 | specificness += (*precedit).second;
|
---|
500 | }
|
---|
501 | else
|
---|
502 | {
|
---|
503 | return -1.0; // did not match
|
---|
504 | }
|
---|
505 | }
|
---|
506 |
|
---|
507 | here++;
|
---|
508 | }
|
---|
509 |
|
---|
510 | return specificness;
|
---|
511 | }
|
---|
512 |
|
---|
513 |
|
---|
514 | void splitparams (const text_t ¶mstring, paramhashtype ¶mhash)
|
---|
515 | {
|
---|
516 | text_t key;
|
---|
517 | text_t value;
|
---|
518 |
|
---|
519 | text_t::const_iterator here, end;
|
---|
520 |
|
---|
521 | // set paramhash to an empty hash
|
---|
522 | paramhash.erase(paramhash.begin(), paramhash.end());
|
---|
523 |
|
---|
524 | // iterate through paramstring ignoring space and extracting
|
---|
525 | // out key value pairs.
|
---|
526 | here = paramstring.begin();
|
---|
527 | end = paramstring.end();
|
---|
528 | while (here != end)
|
---|
529 | {
|
---|
530 | // reset key and value
|
---|
531 | key.clear();
|
---|
532 | value.clear();
|
---|
533 |
|
---|
534 | // get key
|
---|
535 | while (here != end)
|
---|
536 | {
|
---|
537 | if (*here == ',')
|
---|
538 | {
|
---|
539 | // have a key with no value
|
---|
540 | break;
|
---|
541 | }
|
---|
542 | else if (*here == '=')
|
---|
543 | {
|
---|
544 | // found the end of the key
|
---|
545 | here ++;
|
---|
546 | break;
|
---|
547 | }
|
---|
548 | else if (*here == ' ')
|
---|
549 | {
|
---|
550 | // do nothing (ignore spaces)
|
---|
551 | }
|
---|
552 | else
|
---|
553 | {
|
---|
554 | // character in key
|
---|
555 | key.push_back (*here); // copy this character
|
---|
556 | }
|
---|
557 | here ++;
|
---|
558 | }
|
---|
559 |
|
---|
560 | // get value
|
---|
561 | while (here != end)
|
---|
562 | {
|
---|
563 | if (*here == '=')
|
---|
564 | {
|
---|
565 | // multiple values for one key, ignore previous
|
---|
566 | // values
|
---|
567 | value.clear();
|
---|
568 | }
|
---|
569 | else if (*here == ',')
|
---|
570 | {
|
---|
571 | // found the end of the value
|
---|
572 | here ++;
|
---|
573 | break;
|
---|
574 | }
|
---|
575 | else if (*here == ' ')
|
---|
576 | {
|
---|
577 | // do nothing (ignore spaces)
|
---|
578 | }
|
---|
579 | else
|
---|
580 | {
|
---|
581 | // character in value
|
---|
582 | value.push_back (*here); // copy this character
|
---|
583 | }
|
---|
584 | here ++;
|
---|
585 | }
|
---|
586 |
|
---|
587 | // if a key was found insert the key/value pair in
|
---|
588 | // the map
|
---|
589 | if (!key.empty())
|
---|
590 | {
|
---|
591 | paramhash[key] = value;
|
---|
592 | }
|
---|
593 | }
|
---|
594 | }
|
---|
595 |
|
---|
596 |
|
---|
597 | void joinparams (const paramhashtype ¶mhash, text_t ¶mstring)
|
---|
598 | {
|
---|
599 | //set paramstring to an empty string
|
---|
600 | paramstring.clear();
|
---|
601 |
|
---|
602 | //iterate through the paramhash
|
---|
603 | paramhashtype::const_iterator thepair;
|
---|
604 | int firstparam = 1;
|
---|
605 |
|
---|
606 | for (thepair=paramhash.begin();thepair!=paramhash.end(); thepair++)
|
---|
607 | {
|
---|
608 | if (!firstparam) paramstring.push_back(',');
|
---|
609 | firstparam = 0;
|
---|
610 |
|
---|
611 | // insert pairs of "key=value"
|
---|
612 | text_t thevalue;
|
---|
613 | paramstring.append((*thepair).first);
|
---|
614 | paramstring.push_back('=');
|
---|
615 | paramstring.append((*thepair).second);
|
---|
616 | }
|
---|
617 | }
|
---|
618 |
|
---|
619 |
|
---|
620 |
|
---|
621 | /////////////////////////////////////
|
---|
622 | // parsing support functions
|
---|
623 | /////////////////////////////////////
|
---|
624 |
|
---|
625 | inline int my_isalpha (unsigned short c)
|
---|
626 | {
|
---|
627 | return ((c >= 'A' && c <= 'Z') ||
|
---|
628 | (c >= 'a' && c <= 'z'));
|
---|
629 | }
|
---|
630 |
|
---|
631 |
|
---|
632 |
|
---|
633 | inline unsigned short my_ttnextchar (text_t::const_iterator &here,
|
---|
634 | text_t::const_iterator &end)
|
---|
635 | {
|
---|
636 | if (here != end)
|
---|
637 | {
|
---|
638 | here++;
|
---|
639 | if (here != end) return (*here);
|
---|
640 | }
|
---|
641 | return '\0';
|
---|
642 | }
|
---|
643 |
|
---|
644 |
|
---|
645 |
|
---|
646 | /////////////////////////////////////
|
---|
647 | // methods for display
|
---|
648 | /////////////////////////////////////
|
---|
649 |
|
---|
650 | // public methods for display
|
---|
651 |
|
---|
652 | displayclass::displayclass ()
|
---|
653 | {
|
---|
654 | defaultmacros = new defaultmacros_t;
|
---|
655 | defaultfiles = new fileinfomap;
|
---|
656 |
|
---|
657 | orderparamlist = new paramspeclist;
|
---|
658 | currentmacros = new currentmacros_t;
|
---|
659 |
|
---|
660 | outc = NULL;
|
---|
661 |
|
---|
662 | logout = &cerr;
|
---|
663 | }
|
---|
664 |
|
---|
665 |
|
---|
666 | displayclass::~displayclass ()
|
---|
667 | {
|
---|
668 | delete defaultmacros;
|
---|
669 | delete defaultfiles;
|
---|
670 |
|
---|
671 | delete orderparamlist;
|
---|
672 | delete currentmacros;
|
---|
673 | }
|
---|
674 |
|
---|
675 | // setdefaultmacro adds an entry to the list of default macros
|
---|
676 | // returns 0 if there was no error,
|
---|
677 | // -1 if it redefined a macro
|
---|
678 | // -2 if it hid a Global macro
|
---|
679 | // -3 if it redefined a macro and hid a Global macro
|
---|
680 | // -4 if no macroname was supplied
|
---|
681 | int displayclass::setdefaultmacro (text_t package, const text_t ¯oname,
|
---|
682 | text_t params, const text_t ¯ovalue)
|
---|
683 | {
|
---|
684 | return setdefaultmacro (macroname, package, params, macrovalue, "memory");
|
---|
685 | }
|
---|
686 |
|
---|
687 |
|
---|
688 |
|
---|
689 | // as we are using one character lookahead the
|
---|
690 | // value of line might be off by one.
|
---|
691 | // the input file must be in the utf-8 or unicode format
|
---|
692 | // initially for each file isunicode should be set to 0 and
|
---|
693 | // bigendian should be set to 1
|
---|
694 | // 0 will be returned when the end of the file has been found
|
---|
695 | unsigned short my_uni_get (unistream &fin, int &line,
|
---|
696 | int &isunicode, int &bigendian) {
|
---|
697 | unsigned short c = 0;
|
---|
698 |
|
---|
699 | if (isunicode) {
|
---|
700 | // unicode text
|
---|
701 | // get the next two characters
|
---|
702 | unsigned char c1 = 0, c2 = 0;
|
---|
703 |
|
---|
704 | if (!fin.eof()) fin.get(c1);
|
---|
705 | if (!fin.eof()) fin.get(c2);
|
---|
706 | else c1 = 0;
|
---|
707 |
|
---|
708 | // if they indicate the order get the next character
|
---|
709 | // otherwise just get these characters
|
---|
710 | if (c1 == 0xff && c2 == 0xfe) {
|
---|
711 | bigendian = 0;
|
---|
712 | c = my_uni_get (fin, line, isunicode, bigendian);
|
---|
713 | } else if (c1 == 0xfe && c2 == 0xff) {
|
---|
714 | bigendian = 1;
|
---|
715 | c = my_uni_get (fin, line, isunicode, bigendian);
|
---|
716 | } else c = (bigendian) ? (c1*256+c2) : (c2*256+c1);
|
---|
717 |
|
---|
718 | } else {
|
---|
719 | // utf-8 text
|
---|
720 | // how many characters we get depends on what we find
|
---|
721 | unsigned char c1 = 0, c2 = 0, c3 = 0;
|
---|
722 | while (!fin.eof()) {
|
---|
723 | fin.get(c1);
|
---|
724 | if (c1 == 0xfe || c1 == 0xff) {
|
---|
725 | // switch to unicode
|
---|
726 | isunicode = 1;
|
---|
727 | if (!fin.eof()) fin.get(c2);
|
---|
728 |
|
---|
729 | if (c1 == 0xff && c2 == 0xfe) bigendian = 0;
|
---|
730 | else bigendian = 1;
|
---|
731 |
|
---|
732 | c = my_uni_get (fin, line, isunicode, bigendian);
|
---|
733 | break;
|
---|
734 |
|
---|
735 | } else if (c1 <= 0x7f) {
|
---|
736 | // one byte character
|
---|
737 | c = c1;
|
---|
738 | break;
|
---|
739 |
|
---|
740 | } else if (c1 >= 0xc0 && c1 <= 0xdf) {
|
---|
741 | // two byte character
|
---|
742 | if (!fin.eof()) fin.get(c2);
|
---|
743 | c = ((c1 & 0x1f) << 6) + (c2 & 0x3f);
|
---|
744 | break;
|
---|
745 |
|
---|
746 | } else if (c1 >= 0xe0 && c1 <= 0xef) {
|
---|
747 | // three byte character
|
---|
748 | if (!fin.eof()) fin.get(c2);
|
---|
749 | if (!fin.eof()) fin.get(c3);
|
---|
750 | c = ((c1 & 0xf) << 12) + ((c2 & 0x3f) << 6) + (c3 & 0x3f);
|
---|
751 | break;
|
---|
752 | }
|
---|
753 |
|
---|
754 | // if we get here there was an error in the file, we should
|
---|
755 | // be able to recover from it however, maybe the file is in
|
---|
756 | // another encoding
|
---|
757 | }
|
---|
758 | }
|
---|
759 |
|
---|
760 | if (c == '\n') line++;
|
---|
761 | return c;
|
---|
762 | }
|
---|
763 |
|
---|
764 |
|
---|
765 |
|
---|
766 | // loads a default macro file (if it isn't already loaded)
|
---|
767 | // returns 0 if didn't need to load the file (it was already loaded)
|
---|
768 | // 1 if was (re)loaded
|
---|
769 | // -1 an error occurred while trying to load the file
|
---|
770 | int displayclass::loaddefaultmacros (text_t thisfilename) {
|
---|
771 | // convert the filename to a C string
|
---|
772 | char *filenamestr = thisfilename.getcstr();
|
---|
773 | outconvertclass text_t2ascii;
|
---|
774 |
|
---|
775 | // see if we need to open this file -- this isn't implemented yet
|
---|
776 |
|
---|
777 | // open the file
|
---|
778 | unistream fin (filenamestr);
|
---|
779 |
|
---|
780 | if (fin.fail()) return -1; // read failed
|
---|
781 |
|
---|
782 | text_t package = "Global";
|
---|
783 | int line = 1;
|
---|
784 | int isunicode = 0, bigendian = 1;
|
---|
785 |
|
---|
786 | // pre-fetch the next character
|
---|
787 | unsigned short c = my_uni_get(fin, line, isunicode, bigendian);
|
---|
788 |
|
---|
789 | text_t macropackage, macroname, macroparameters, macrovalue;
|
---|
790 | int err; // for keeping track of whether an error occurred somewhere
|
---|
791 |
|
---|
792 | while (!fin.eof()) {
|
---|
793 | // expect: white space, comment, "package", or macroname
|
---|
794 | if (is_unicode_space(c)) {
|
---|
795 | // found some white-space
|
---|
796 | c = my_uni_get(fin, line, isunicode, bigendian);
|
---|
797 |
|
---|
798 | } else if (c == '#') {
|
---|
799 | // found the start of a comment
|
---|
800 | // skip all characters up to the end of the line
|
---|
801 | c = my_uni_get(fin, line, isunicode, bigendian); // skip the '#'
|
---|
802 | while (!fin.eof ()) {
|
---|
803 | if (c == '\n') break;
|
---|
804 | c = my_uni_get(fin, line, isunicode, bigendian);
|
---|
805 | }
|
---|
806 |
|
---|
807 | } else if (c == 'p') {
|
---|
808 | // found the start of 'package' (hopefully)
|
---|
809 | // get everything up to the next space
|
---|
810 | text_t tmp;
|
---|
811 | while (!fin.eof() && my_isalpha(c)) {
|
---|
812 | tmp.push_back(c);
|
---|
813 | c = my_uni_get(fin, line, isunicode, bigendian);
|
---|
814 | }
|
---|
815 | // see if we have a package name
|
---|
816 | if (tmp == "package") {
|
---|
817 | // skip all white space
|
---|
818 | while (!fin.eof() && is_unicode_space(c))
|
---|
819 | c = my_uni_get(fin, line, isunicode, bigendian);
|
---|
820 |
|
---|
821 | // get the package name
|
---|
822 | tmp.clear(); // init tmp
|
---|
823 | while (!fin.eof() && my_isalpha(c)) {
|
---|
824 | tmp.push_back(c);
|
---|
825 | c = my_uni_get(fin, line, isunicode, bigendian);
|
---|
826 | }
|
---|
827 | package = tmp;
|
---|
828 | if (package.empty()) package = "Global";
|
---|
829 |
|
---|
830 | } else {
|
---|
831 | // error
|
---|
832 | if (logout != NULL) {
|
---|
833 | (*logout) << text_t2ascii << "Expected 'package' on line " << line
|
---|
834 | << " of " << thisfilename << "\n";
|
---|
835 | }
|
---|
836 | }
|
---|
837 |
|
---|
838 | } else if (c == '_') {
|
---|
839 | // found the start of a macro (hopefully)
|
---|
840 | c = my_uni_get(fin, line, isunicode, bigendian); // skip the _
|
---|
841 |
|
---|
842 | // init variables
|
---|
843 | err = 0;
|
---|
844 | macropackage = package;
|
---|
845 | macroname.clear(); // init macroname
|
---|
846 | macroparameters.clear(); // init macroname
|
---|
847 | macrovalue.clear(); // init macroname
|
---|
848 |
|
---|
849 | // get the macro name
|
---|
850 | while ((!fin.eof()) && (!is_unicode_space(c)) &&
|
---|
851 | (c != '\\') && (c != '_') &&(c != ':') &&
|
---|
852 | (macroname.size() < 80)) {
|
---|
853 | macroname.push_back(c);
|
---|
854 | c = my_uni_get(fin, line, isunicode, bigendian);
|
---|
855 | }
|
---|
856 |
|
---|
857 | if (c == ':') {
|
---|
858 | // we actually had the macro package
|
---|
859 | c = my_uni_get(fin, line, isunicode, bigendian); // skip :
|
---|
860 | macropackage = macroname;
|
---|
861 | macroname.clear ();
|
---|
862 |
|
---|
863 | // get the macro name (honest!)
|
---|
864 | while ((!fin.eof()) && (!is_unicode_space(c)) &&
|
---|
865 | (c != '\\') && (c != '_') &&(c != ':') &&
|
---|
866 | (macroname.size() < 80)) {
|
---|
867 | macroname.push_back(c);
|
---|
868 | c = my_uni_get(fin, line, isunicode, bigendian);
|
---|
869 | }
|
---|
870 | }
|
---|
871 |
|
---|
872 | if (!err && c == '_') {
|
---|
873 | c = my_uni_get(fin, line, isunicode, bigendian); // skip the _
|
---|
874 |
|
---|
875 | // skip all white space
|
---|
876 | while (!fin.eof() && is_unicode_space(c)) c = my_uni_get(fin, line, isunicode, bigendian);
|
---|
877 | } else if (!err) err = 1;
|
---|
878 |
|
---|
879 | // get the macro parameters (optional)
|
---|
880 | if (!err && c == '[') {
|
---|
881 | c = my_uni_get(fin, line, isunicode, bigendian); // skip the [
|
---|
882 | while ((!fin.eof()) && (c != '\n') && (c != '\\') && (c != ']')) {
|
---|
883 | macroparameters.push_back(c);
|
---|
884 | c = my_uni_get(fin, line, isunicode, bigendian);
|
---|
885 | }
|
---|
886 |
|
---|
887 | if (c == ']') {
|
---|
888 | c = my_uni_get(fin, line, isunicode, bigendian); // skip the ]
|
---|
889 |
|
---|
890 | // skip all white space
|
---|
891 | while (!fin.eof() && is_unicode_space(c)) c = my_uni_get(fin, line, isunicode, bigendian);
|
---|
892 | }
|
---|
893 | else if (!err) err = 2;
|
---|
894 | }
|
---|
895 |
|
---|
896 | // get the macro value
|
---|
897 | if (!err && c == '{') {
|
---|
898 | c = my_uni_get(fin, line, isunicode, bigendian); // skip the {
|
---|
899 | while ((!fin.eof()) && (c != '}')) {
|
---|
900 | if (c == '\\') {
|
---|
901 | macrovalue.push_back(c); // keep the '\'
|
---|
902 | c = my_uni_get(fin, line, isunicode, bigendian); // store the *next* value regardless
|
---|
903 | if (!fin.eof()) macrovalue.push_back(c);
|
---|
904 | c = my_uni_get(fin, line, isunicode, bigendian);
|
---|
905 | }
|
---|
906 | macrovalue.push_back(c);
|
---|
907 | c = my_uni_get(fin, line, isunicode, bigendian);
|
---|
908 | }
|
---|
909 |
|
---|
910 | if (c == '}') {
|
---|
911 | c = my_uni_get(fin, line, isunicode, bigendian); // skip the }
|
---|
912 |
|
---|
913 | // define the macro
|
---|
914 | err = setdefaultmacro (macropackage, macroname, macroparameters,
|
---|
915 | thisfilename, macrovalue);
|
---|
916 | if ((err == -1 || err == -3) && logout != NULL) {
|
---|
917 | (*logout) << text_t2ascii << "Warning: redefinition of _" <<
|
---|
918 | package << ":" << macroname << "_[" << macroparameters <<
|
---|
919 | "] on line ";
|
---|
920 | (*logout) << line;
|
---|
921 | (*logout) << text_t2ascii << " of " << thisfilename << "\n";
|
---|
922 |
|
---|
923 | } else if (err == -2 && logout != NULL) {
|
---|
924 | (*logout) << text_t2ascii << "Warning: _" <<
|
---|
925 | package << ":" << macroname << "_[" << macroparameters <<
|
---|
926 | "] on line ";
|
---|
927 | (*logout) << line;
|
---|
928 | (*logout) << text_t2ascii << " of " <<
|
---|
929 | thisfilename << " hides a Global macro with the same name\n";
|
---|
930 |
|
---|
931 | } else if (err == -4 && logout != NULL) {
|
---|
932 | (*logout) << text_t2ascii << "Error: macro name expected on line ";
|
---|
933 | (*logout) << line ;
|
---|
934 | (*logout) << text_t2ascii << " of " << thisfilename << "\n";
|
---|
935 | }
|
---|
936 |
|
---|
937 | err = 0; // for the test below
|
---|
938 | }
|
---|
939 | else if (!err) err = 3;
|
---|
940 | }
|
---|
941 | else if (!err) err = 4;
|
---|
942 |
|
---|
943 | if (err) {
|
---|
944 | // found an error, skip to the end of the line
|
---|
945 | if (logout != NULL) {
|
---|
946 | (*logout) << text_t2ascii << "Error: ";
|
---|
947 | if (err == 1) (*logout) << text_t2ascii << "'_'";
|
---|
948 | else if (err == 2) (*logout) << text_t2ascii << "']'";
|
---|
949 | else if (err == 3) (*logout) << text_t2ascii << "'}'";
|
---|
950 | else if (err == 4) (*logout) << text_t2ascii << "'{'";
|
---|
951 | (*logout) << text_t2ascii << " expected on line ";
|
---|
952 | (*logout) << line ;
|
---|
953 | (*logout) << text_t2ascii << " of " << thisfilename << "\n";
|
---|
954 | }
|
---|
955 | while (!fin.eof ()) {
|
---|
956 | if (c == '\n') break;
|
---|
957 | c = my_uni_get(fin, line, isunicode, bigendian);
|
---|
958 | }
|
---|
959 | }
|
---|
960 |
|
---|
961 | } else {
|
---|
962 | // found an error, skip to the end of the line
|
---|
963 | if (logout != NULL) {
|
---|
964 | (*logout) << text_t2ascii << "Error: Unexpected input on line " << line
|
---|
965 | << " of " << thisfilename << "\n";
|
---|
966 | }
|
---|
967 | while (!fin.eof ()) {
|
---|
968 | if (c == '\n') break;
|
---|
969 | c = my_uni_get(fin, line, isunicode, bigendian);
|
---|
970 | }
|
---|
971 |
|
---|
972 | }
|
---|
973 | }
|
---|
974 |
|
---|
975 | fin.close ();
|
---|
976 |
|
---|
977 | // free up memory
|
---|
978 | delete filenamestr;
|
---|
979 | return 0;
|
---|
980 | }
|
---|
981 |
|
---|
982 |
|
---|
983 | // prepares to create a page.
|
---|
984 | void displayclass::openpage (const text_t &thispageparams,
|
---|
985 | const text_t &thisprecedence)
|
---|
986 | {
|
---|
987 | // init variables
|
---|
988 | currentmacros->clear();
|
---|
989 |
|
---|
990 | // reload any default macro files which have changed.
|
---|
991 | if (checkdefaultmacrofiles() < 0)
|
---|
992 | {
|
---|
993 | // print error message
|
---|
994 | }
|
---|
995 |
|
---|
996 | setpageparams (thispageparams, thisprecedence);
|
---|
997 | }
|
---|
998 |
|
---|
999 |
|
---|
1000 | // changes the parameters for the current page.
|
---|
1001 | void displayclass::setpageparams (text_t thispageparams,
|
---|
1002 | text_t thisprecedence)
|
---|
1003 | {
|
---|
1004 | paramhashtype thissplitparams, splittheseparams;
|
---|
1005 | precedencetype precedhash;
|
---|
1006 | text_tset::iterator text_tsetit;
|
---|
1007 | paramspec tmpps;
|
---|
1008 |
|
---|
1009 | precedence = thisprecedence;
|
---|
1010 | calcprecedence(thisprecedence, precedhash);
|
---|
1011 |
|
---|
1012 | splitparams(thispageparams, thissplitparams);
|
---|
1013 | joinparams(thissplitparams, thispageparams);
|
---|
1014 | params = thispageparams;
|
---|
1015 |
|
---|
1016 | // get a list of parameters with their specificness
|
---|
1017 | orderparamlist->erase(orderparamlist->begin(), orderparamlist->end());
|
---|
1018 | for (text_tsetit=allparams.begin();
|
---|
1019 | text_tsetit!=allparams.end();
|
---|
1020 | text_tsetit++)
|
---|
1021 | {
|
---|
1022 | tmpps.param = (*text_tsetit);
|
---|
1023 | splitparams(tmpps.param, splittheseparams);
|
---|
1024 | tmpps.spec = getspecificness(thissplitparams, splittheseparams, precedhash);
|
---|
1025 | if (tmpps.spec >= 0)
|
---|
1026 | {
|
---|
1027 | orderparamlist->push_back (tmpps);
|
---|
1028 | }
|
---|
1029 | }
|
---|
1030 |
|
---|
1031 | // sort the list
|
---|
1032 | sort(orderparamlist->begin(), orderparamlist->end());
|
---|
1033 |
|
---|
1034 | // paramspeclist::iterator pshere = orderparamlist->begin();
|
---|
1035 | // paramspeclist::iterator psend = orderparamlist->end();
|
---|
1036 | // while (pshere != psend)
|
---|
1037 | // {
|
---|
1038 | // cerr << text_t2ascii << "param=" << (*pshere).param;
|
---|
1039 | // cerr << " spec=" << (int)((*pshere).spec) << "\n";
|
---|
1040 | // pshere++;
|
---|
1041 | // }
|
---|
1042 | }
|
---|
1043 |
|
---|
1044 |
|
---|
1045 | // overrides (or sets) a macro for the current page.
|
---|
1046 | // returns 0 if there was no error,
|
---|
1047 | // -1 if it redefined a macro
|
---|
1048 | // -4 if no macroname was supplied
|
---|
1049 | int displayclass::setmacro (const text_t ¯oname,
|
---|
1050 | text_t package,
|
---|
1051 | const text_t ¯ovalue)
|
---|
1052 | {
|
---|
1053 | // make sure a macroname was supplied
|
---|
1054 | if (macroname.empty()) return -4;
|
---|
1055 |
|
---|
1056 | // make package "Global" if it doesn't point to anything yet
|
---|
1057 | if (package.empty()) package = "Global";
|
---|
1058 |
|
---|
1059 | // set the macro
|
---|
1060 | return currentmacros->setmacro(package, macroname, "memory", macrovalue);
|
---|
1061 | }
|
---|
1062 |
|
---|
1063 |
|
---|
1064 | void displayclass::expandstring (const text_t &inputtext, text_t &outputtext)
|
---|
1065 | {
|
---|
1066 | expandstring("", inputtext, outputtext);
|
---|
1067 | }
|
---|
1068 |
|
---|
1069 |
|
---|
1070 | void displayclass::expandstring (text_t package, const text_t &inputtext,
|
---|
1071 | text_t &outputtext, int recursiondepth)
|
---|
1072 | {
|
---|
1073 | text_t macroname, macropackage, macroargs;
|
---|
1074 | text_t::const_iterator tthere = inputtext.begin();
|
---|
1075 | text_t::const_iterator ttend = inputtext.end();
|
---|
1076 | unsigned short c = '\0';
|
---|
1077 |
|
---|
1078 | if (package.empty()) package = "Global";
|
---|
1079 |
|
---|
1080 | outputtext.clear();
|
---|
1081 |
|
---|
1082 | // use one-character lookahead
|
---|
1083 | if (tthere != ttend) c = (*tthere);
|
---|
1084 | while (tthere != ttend)
|
---|
1085 | {
|
---|
1086 | if (c == '\\')
|
---|
1087 | {
|
---|
1088 | // found an escape character
|
---|
1089 | c = my_ttnextchar (tthere, ttend); // skip the escape character
|
---|
1090 | if (tthere != ttend)
|
---|
1091 | {
|
---|
1092 | if (c == 'n') outputtext.push_back('\n');
|
---|
1093 | else if (c == 't') outputtext.push_back('\t');
|
---|
1094 | else outputtext.push_back(c);
|
---|
1095 | }
|
---|
1096 | c = my_ttnextchar (tthere, ttend);
|
---|
1097 |
|
---|
1098 | }
|
---|
1099 | else if (c == '_')
|
---|
1100 | {
|
---|
1101 | // might have found the start of a macro
|
---|
1102 |
|
---|
1103 | // embedded macros (macros within the names
|
---|
1104 | // of other macros) are no longer supported -- Rodger.
|
---|
1105 |
|
---|
1106 | // save the current state (in case we need to back out)
|
---|
1107 | text_t::const_iterator savedtthere = tthere;
|
---|
1108 | unsigned short savedc = c;
|
---|
1109 |
|
---|
1110 | macroname.clear();
|
---|
1111 | macropackage = package;
|
---|
1112 | macroargs.clear();
|
---|
1113 |
|
---|
1114 | c = my_ttnextchar (tthere, ttend); // skip the '_'
|
---|
1115 |
|
---|
1116 | // get the macroname
|
---|
1117 | while (tthere != ttend && (!is_unicode_space(c)) &&
|
---|
1118 | (c != '\\') && (c != '_') &&(c != ':') &&
|
---|
1119 | (macroname.size() < 80))
|
---|
1120 | {
|
---|
1121 | macroname.push_back((unsigned char)c);
|
---|
1122 | c = my_ttnextchar (tthere, ttend);
|
---|
1123 | }
|
---|
1124 |
|
---|
1125 | if (c == ':')
|
---|
1126 | {
|
---|
1127 | // we actually had the macro package
|
---|
1128 | c = my_ttnextchar (tthere, ttend);
|
---|
1129 | macropackage = macroname;
|
---|
1130 | macroname.clear ();
|
---|
1131 |
|
---|
1132 | // get the macro name (honest!)
|
---|
1133 | while ((tthere != ttend) && (!is_unicode_space(c)) &&
|
---|
1134 | (c != '\\') && (c != '_') &&(c != ':') &&
|
---|
1135 | (macroname.size() < 80))
|
---|
1136 | {
|
---|
1137 | macroname.push_back((unsigned char)c);
|
---|
1138 | c = my_ttnextchar (tthere, ttend);
|
---|
1139 | }
|
---|
1140 | }
|
---|
1141 |
|
---|
1142 | if ((tthere != ttend) && (c == '_') &&
|
---|
1143 | (macroname.size() > 0))
|
---|
1144 | {
|
---|
1145 | // found a macro!!!! (maybe)
|
---|
1146 |
|
---|
1147 | c = my_ttnextchar (tthere, ttend); // skip the '_'
|
---|
1148 |
|
---|
1149 | // get the parameters (if there are any)
|
---|
1150 | if ((tthere != ttend) && (c == '('))
|
---|
1151 | {
|
---|
1152 | c = my_ttnextchar (tthere, ttend); // skip '('
|
---|
1153 |
|
---|
1154 | // have to be careful of quotes
|
---|
1155 | unsigned short quote = '\0';
|
---|
1156 | while (tthere != ttend)
|
---|
1157 | {
|
---|
1158 | if (c == '\\')
|
---|
1159 | {
|
---|
1160 | // have an escape character, save escape
|
---|
1161 | // character and next character as well
|
---|
1162 | macroargs.push_back (c);
|
---|
1163 | c = my_ttnextchar (tthere, ttend);
|
---|
1164 |
|
---|
1165 | }
|
---|
1166 | else if (quote == '\0')
|
---|
1167 | {
|
---|
1168 | // not in a quote at the moment
|
---|
1169 | if (c == ')')
|
---|
1170 | {
|
---|
1171 | // found end of the arguments
|
---|
1172 | c = my_ttnextchar (tthere, ttend); // skip ')'
|
---|
1173 | break;
|
---|
1174 |
|
---|
1175 | }
|
---|
1176 | else if (c == '\'' || c == '\"')
|
---|
1177 | {
|
---|
1178 | // found a quote
|
---|
1179 | quote = c;
|
---|
1180 | }
|
---|
1181 |
|
---|
1182 | }
|
---|
1183 | else
|
---|
1184 | {
|
---|
1185 | // we are in a quote
|
---|
1186 | if (c == quote) quote = '\0';
|
---|
1187 | }
|
---|
1188 |
|
---|
1189 | // save this character
|
---|
1190 | if (tthere != ttend) macroargs.push_back (c);
|
---|
1191 | c = my_ttnextchar (tthere, ttend);
|
---|
1192 | }
|
---|
1193 | }
|
---|
1194 |
|
---|
1195 | //
|
---|
1196 | // we now have the macropackage, macroname, and macroargs
|
---|
1197 | //
|
---|
1198 |
|
---|
1199 | // try to expand out this macro
|
---|
1200 | text_t expandedmacro;
|
---|
1201 | if (macro (macroname, macropackage, macroargs, expandedmacro, recursiondepth))
|
---|
1202 | {
|
---|
1203 | // append the expanded macro
|
---|
1204 | outputtext += expandedmacro;
|
---|
1205 | }
|
---|
1206 | else
|
---|
1207 | {
|
---|
1208 | // wasn't a macro
|
---|
1209 | tthere = savedtthere;
|
---|
1210 | c = savedc;
|
---|
1211 | outputtext.push_back(c); // the '_'
|
---|
1212 | c = my_ttnextchar (tthere, ttend);
|
---|
1213 | }
|
---|
1214 |
|
---|
1215 |
|
---|
1216 | }
|
---|
1217 | else
|
---|
1218 | {
|
---|
1219 | // wasn't a macro
|
---|
1220 | tthere = savedtthere;
|
---|
1221 | c = savedc;
|
---|
1222 | outputtext.push_back(c); // the '_'
|
---|
1223 | c = my_ttnextchar (tthere, ttend);
|
---|
1224 | }
|
---|
1225 |
|
---|
1226 | }
|
---|
1227 | else
|
---|
1228 | {
|
---|
1229 | // nothing of interest
|
---|
1230 | outputtext.push_back(c); // the '_'
|
---|
1231 | c = my_ttnextchar (tthere, ttend);
|
---|
1232 | }
|
---|
1233 | }
|
---|
1234 | }
|
---|
1235 |
|
---|
1236 | ostream *displayclass::setlogout (ostream *thelogout) {
|
---|
1237 |
|
---|
1238 | ostream *oldlogout = logout;
|
---|
1239 | logout = thelogout;
|
---|
1240 | return oldlogout;
|
---|
1241 | }
|
---|
1242 |
|
---|
1243 | // protected methods for display
|
---|
1244 |
|
---|
1245 | // reloads any default macro files which have changed
|
---|
1246 | // returns 0 no errors occurred
|
---|
1247 | // -1 an error occurred while trying to load one of the files
|
---|
1248 | int displayclass::checkdefaultmacrofiles ()
|
---|
1249 | {
|
---|
1250 | // this isn't implemented yet
|
---|
1251 | return 0;
|
---|
1252 | }
|
---|
1253 |
|
---|
1254 | // isdefaultmacro sees if there is an entry in the list of
|
---|
1255 | // default macros with the given package and macro name
|
---|
1256 | // returns 0 if no macros in the package or in the global package
|
---|
1257 | // were found
|
---|
1258 | // 1 if no macros in the package were found but a macro
|
---|
1259 | // in the global package was found
|
---|
1260 | // 2 if a macro in the given package was found
|
---|
1261 | int displayclass::isdefaultmacro (text_t package, const text_t ¯oname) {
|
---|
1262 | // make sure a macroname was supplied
|
---|
1263 | if (macroname.empty()) return 0;
|
---|
1264 |
|
---|
1265 | // make package "Global" if it doesn't point to anything yet
|
---|
1266 | if (package.empty()) package = "Global";
|
---|
1267 |
|
---|
1268 | // check the given package
|
---|
1269 | if (defaultmacros->macro_find(package, macroname) != NULL) return 2;
|
---|
1270 |
|
---|
1271 | // check the Global package
|
---|
1272 | if (defaultmacros->macro_find("Global", macroname) != NULL) return 1;
|
---|
1273 |
|
---|
1274 | return 0;
|
---|
1275 | }
|
---|
1276 |
|
---|
1277 |
|
---|
1278 | // setdefaultmacro adds an entry to the list of default macros
|
---|
1279 | // returns 0 if there was no error,
|
---|
1280 | // -1 if it redefined a macro
|
---|
1281 | // -2 if it hid a Global macro
|
---|
1282 | // -3 if it redefined a macro and hid a Global macro
|
---|
1283 | // -4 if no macroname was supplied
|
---|
1284 | int displayclass::setdefaultmacro (text_t package, const text_t ¯oname,
|
---|
1285 | text_t params, const text_t &filename,
|
---|
1286 | const text_t ¯ovalue)
|
---|
1287 | {
|
---|
1288 | // make sure a macroname was supplied
|
---|
1289 | if (macroname.empty()) return -4;
|
---|
1290 |
|
---|
1291 | // put the parameters in a standard form
|
---|
1292 | paramhashtype paramhash;
|
---|
1293 | if (params.empty()) params = "ignore=yes";
|
---|
1294 | splitparams (params, paramhash);
|
---|
1295 | joinparams (paramhash, params);
|
---|
1296 |
|
---|
1297 | // make package "Global" if it doesn't point to anything yet
|
---|
1298 | if (package.empty()) package = "Global";
|
---|
1299 |
|
---|
1300 | // remember these parameters
|
---|
1301 | allparams.insert (params);
|
---|
1302 |
|
---|
1303 | // remember this filename (this part isn't finished yet -- Rodger).
|
---|
1304 |
|
---|
1305 | // set the macro
|
---|
1306 | return defaultmacros->setmacro(package, macroname, params, filename, macrovalue);
|
---|
1307 | }
|
---|
1308 |
|
---|
1309 |
|
---|
1310 | // evaluates a boolean expression
|
---|
1311 | // returns false if expr equals "" or "0".
|
---|
1312 | // otherwise returns true *unless* expr is
|
---|
1313 | // format "XXXX" eq/ne "dddd" in which case
|
---|
1314 | // the two quoted strings are compared
|
---|
1315 | bool displayclass::boolexpr (text_t package, const text_t &expr, int recursiondepth) {
|
---|
1316 |
|
---|
1317 | if (expr.empty()) return false;
|
---|
1318 |
|
---|
1319 | text_t expexpr;
|
---|
1320 | if (package.empty()) package = "Global";
|
---|
1321 | expandstring (package, expr, expexpr, recursiondepth);
|
---|
1322 |
|
---|
1323 | if (expexpr.empty() || expexpr == "0") return false;
|
---|
1324 | if (expr[0] != '\"') return true;
|
---|
1325 |
|
---|
1326 | // don't use expexpr while separating quoted parts of
|
---|
1327 | // expression just in case expanded out macros contain
|
---|
1328 | // quotes
|
---|
1329 | text_t::const_iterator here = expr.begin();
|
---|
1330 | text_t::const_iterator end = expr.end();
|
---|
1331 |
|
---|
1332 | int quotecount = 0;
|
---|
1333 | text_t string1, expstring1;
|
---|
1334 | text_t string2, expstring2;
|
---|
1335 | text_t op;
|
---|
1336 | text_t combineop;
|
---|
1337 | bool result = false; // an empty string is false
|
---|
1338 | bool result2 = false;
|
---|
1339 |
|
---|
1340 | while (here != end) {
|
---|
1341 | // get a comparison
|
---|
1342 | quotecount = 0;
|
---|
1343 | string1.clear();
|
---|
1344 | string2.clear();
|
---|
1345 | op.clear();
|
---|
1346 | while (here != end) {
|
---|
1347 | if (*here == '"') quotecount++;
|
---|
1348 | else if (quotecount == 1) string1.push_back(*here);
|
---|
1349 | else if ((quotecount == 2) && !is_unicode_space (*here))
|
---|
1350 | op.push_back(*here);
|
---|
1351 | else if (quotecount == 3) string2.push_back(*here);
|
---|
1352 | else if (quotecount >= 4) break;
|
---|
1353 | here ++;
|
---|
1354 | }
|
---|
1355 |
|
---|
1356 | expandstring (package, string1, expstring1, recursiondepth);
|
---|
1357 | expandstring (package, string2, expstring2, recursiondepth);
|
---|
1358 |
|
---|
1359 | // get next result
|
---|
1360 | result2 = true; // any badly formatted string will return true
|
---|
1361 | if (op == "eq") result2 = (expstring1 == expstring2);
|
---|
1362 | else if (op == "ne") result2 = (expstring1 != expstring2);
|
---|
1363 | else if (op == "gt") result2 = (expstring1 > expstring2);
|
---|
1364 | else if (op == "ge") result2 = (expstring1 >= expstring2);
|
---|
1365 | else if (op == "lt") result2 = (expstring1 < expstring2);
|
---|
1366 | else if (op == "le") result2 = (expstring1 <= expstring2);
|
---|
1367 | else if (op == "==") result2 = (expstring1.getint() == expstring2.getint());
|
---|
1368 | else if (op == "!=") result2 = (expstring1.getint() != expstring2.getint());
|
---|
1369 | else if (op == ">") result2 = (expstring1.getint() > expstring2.getint());
|
---|
1370 | else if (op == ">=") result2 = (expstring1.getint() >= expstring2.getint());
|
---|
1371 | else if (op == "<") result2 = (expstring1.getint() < expstring2.getint());
|
---|
1372 | else if (op == "<=") result2 = (expstring1.getint() <= expstring2.getint());
|
---|
1373 |
|
---|
1374 | // combine the results
|
---|
1375 | if (combineop == "&&") result = (result && result2);
|
---|
1376 | else if (combineop == "||") result = (result || result2);
|
---|
1377 | else result = result2;
|
---|
1378 |
|
---|
1379 | // get next combination operator
|
---|
1380 | combineop.clear();
|
---|
1381 | while (here != end && *here != '"') {
|
---|
1382 | if (!is_unicode_space(*here)) combineop.push_back(*here);
|
---|
1383 | here++;
|
---|
1384 | }
|
---|
1385 | }
|
---|
1386 |
|
---|
1387 | return result;
|
---|
1388 | }
|
---|
1389 |
|
---|
1390 |
|
---|
1391 | // (recursively) expand out a macro
|
---|
1392 | // returns true if the macro was found
|
---|
1393 | // false if the macro was not found
|
---|
1394 | bool displayclass::macro (const text_t ¯oname, text_t macropackage,
|
---|
1395 | const text_t ¯oparam, text_t &outputtext,
|
---|
1396 | int recursiondepth)
|
---|
1397 | {
|
---|
1398 | outconvertclass text_t2ascii;
|
---|
1399 | text_tlist splitmacroparam;
|
---|
1400 | text_t::const_iterator hereit, endit;
|
---|
1401 | text_t aparam;
|
---|
1402 | unsigned short c = '\0', quote = '\0';
|
---|
1403 |
|
---|
1404 | // cerr << "r: " << recursiondepth << "\n";
|
---|
1405 |
|
---|
1406 | // check for deep recursion
|
---|
1407 | if (recursiondepth >= MAXRECURSIONDEPTH)
|
---|
1408 | {
|
---|
1409 | if (logout != NULL)
|
---|
1410 | (*logout) << "Warning: deep recursion, limiting macro expansion\n";
|
---|
1411 | return false;
|
---|
1412 | }
|
---|
1413 |
|
---|
1414 | // check the macropackage
|
---|
1415 | if (macropackage.empty()) macropackage = "Global";
|
---|
1416 |
|
---|
1417 | // get the parameters (but don't expand them)
|
---|
1418 | if (macroparam.size() > 0) {
|
---|
1419 | // set up for loop
|
---|
1420 | hereit = macroparam.begin();
|
---|
1421 | endit = macroparam.end();
|
---|
1422 | if (hereit != endit) c = (*hereit);
|
---|
1423 |
|
---|
1424 | while (hereit != endit) {
|
---|
1425 | // get the next parameter
|
---|
1426 | aparam.clear();
|
---|
1427 | quote = '\0'; // not-quoted unless proven quoted
|
---|
1428 |
|
---|
1429 | // ignore initial whitespace
|
---|
1430 | while ((hereit!=endit)&&is_unicode_space(c)) c=my_ttnextchar(hereit,endit);
|
---|
1431 |
|
---|
1432 | // look for the end of the parameter
|
---|
1433 | while (hereit != endit) {
|
---|
1434 | if (c == '\\') {
|
---|
1435 | // found escape character, also get next character
|
---|
1436 | aparam.push_back(c);
|
---|
1437 | c = my_ttnextchar (hereit, endit);
|
---|
1438 | if (hereit != endit) aparam.push_back(c);
|
---|
1439 |
|
---|
1440 | } else if (quote=='\0' && (c=='\'' /*|| c=='"'*/)) {
|
---|
1441 | // found a quoted section
|
---|
1442 | quote = c;
|
---|
1443 | // aparam.push_back(c);
|
---|
1444 |
|
---|
1445 | } else if (quote!='\0' && c==quote) {
|
---|
1446 | // found the end of a quote
|
---|
1447 | quote = '\0';
|
---|
1448 | // aparam.push_back(c);
|
---|
1449 |
|
---|
1450 | } else if (quote=='\0' && c==',') {
|
---|
1451 | // found the end of a parameter
|
---|
1452 | c = my_ttnextchar (hereit, endit);
|
---|
1453 | break;
|
---|
1454 |
|
---|
1455 | } else {
|
---|
1456 | // ordinary character
|
---|
1457 | aparam.push_back(c);
|
---|
1458 | }
|
---|
1459 |
|
---|
1460 | c = my_ttnextchar (hereit, endit);
|
---|
1461 | }
|
---|
1462 |
|
---|
1463 | // add this parameter to the list
|
---|
1464 | splitmacroparam.push_back(aparam);
|
---|
1465 | }
|
---|
1466 | }
|
---|
1467 |
|
---|
1468 | if (macroname == "If") {
|
---|
1469 | // get the condition, then clause and else clause
|
---|
1470 | text_tlist::iterator paramcond = splitmacroparam.begin();
|
---|
1471 | text_tlist::iterator paramend = splitmacroparam.end();
|
---|
1472 | text_tlist::iterator paramthen = paramend;
|
---|
1473 | text_tlist::iterator paramelse = paramend;
|
---|
1474 |
|
---|
1475 | if (paramcond != paramend) {
|
---|
1476 | paramthen = paramcond;
|
---|
1477 | paramthen++;
|
---|
1478 | }
|
---|
1479 | if (paramthen != paramend) {
|
---|
1480 | paramelse = paramthen;
|
---|
1481 | paramelse++;
|
---|
1482 | }
|
---|
1483 |
|
---|
1484 | // will always output something
|
---|
1485 | outputtext.clear();
|
---|
1486 |
|
---|
1487 | // expand out the first parameter
|
---|
1488 | if (paramcond != paramend) {
|
---|
1489 | text_t tmpoutput;
|
---|
1490 | expandstring (macropackage, *paramcond, tmpoutput, recursiondepth+1);
|
---|
1491 | lc (tmpoutput);
|
---|
1492 |
|
---|
1493 | // test the expanded string
|
---|
1494 | if (boolexpr (macropackage, *paramcond, recursiondepth+1)) {
|
---|
1495 | //(tmpoutput.size()) && (tmpoutput != "false") && (tmpoutput != "0")) {
|
---|
1496 | // true
|
---|
1497 | if (paramthen != paramend)
|
---|
1498 | expandstring (macropackage, *paramthen, outputtext, recursiondepth+1);
|
---|
1499 |
|
---|
1500 | } else {
|
---|
1501 | // false
|
---|
1502 | if (paramelse != paramend)
|
---|
1503 | expandstring (macropackage, *paramelse, outputtext, recursiondepth+1);
|
---|
1504 | }
|
---|
1505 | }
|
---|
1506 |
|
---|
1507 | return true;
|
---|
1508 | }
|
---|
1509 |
|
---|
1510 | // try and find this macro
|
---|
1511 |
|
---|
1512 | // this list might be replaced by something a little more
|
---|
1513 | // sophisticated in the future.
|
---|
1514 | text_tlist packagelist;
|
---|
1515 | packagelist.push_back (macropackage);
|
---|
1516 | packagelist.push_back ("Global");
|
---|
1517 |
|
---|
1518 | paramspeclist::iterator paramhere, paramend;
|
---|
1519 | text_tlist::iterator packagehere = packagelist.begin();
|
---|
1520 | text_tlist::iterator packageend = packagelist.end();
|
---|
1521 | mvalue *macrovalue = NULL;
|
---|
1522 | while ((macrovalue == NULL) && (packagehere != packageend))
|
---|
1523 | {
|
---|
1524 | // first look in the currentmacros
|
---|
1525 | macrovalue = currentmacros->macro_find(*packagehere, macroname);
|
---|
1526 | if (macrovalue == NULL)
|
---|
1527 | macrovalue = currentmacros->macro_find("Style", macroname);
|
---|
1528 |
|
---|
1529 | // look in the default macros
|
---|
1530 | if (macrovalue == NULL)
|
---|
1531 | {
|
---|
1532 | // next look in the defaultmacros
|
---|
1533 | if (defaultmacros->macro_find (*packagehere, macroname) != NULL)
|
---|
1534 | {
|
---|
1535 | paramhere = orderparamlist->begin(); paramend = orderparamlist->end();
|
---|
1536 | while ((macrovalue == NULL) && (paramhere != paramend))
|
---|
1537 | {
|
---|
1538 | // cerr << text_t2ascii << "\npackage: " << *packagehere << "\n";
|
---|
1539 | // cerr << text_t2ascii << "macroname: " << macroname << "\n";
|
---|
1540 | // cerr << text_t2ascii << "param: " << (*paramhere).param << "\n";
|
---|
1541 | // cerr << "spec: " << (int)((*paramhere).spec) << "\n";
|
---|
1542 | macrovalue = defaultmacros->parameter_find(*packagehere, macroname,
|
---|
1543 | (*paramhere).param);
|
---|
1544 | paramhere++;
|
---|
1545 | }
|
---|
1546 | }
|
---|
1547 | }
|
---|
1548 |
|
---|
1549 | // and again in the package "Style"
|
---|
1550 | if (macrovalue == NULL)
|
---|
1551 | {
|
---|
1552 | // next look in the defaultmacros
|
---|
1553 | if (defaultmacros->macro_find ("Style", macroname) != NULL)
|
---|
1554 | {
|
---|
1555 | paramhere = orderparamlist->begin(); paramend = orderparamlist->end();
|
---|
1556 | while ((macrovalue == NULL) && (paramhere != paramend))
|
---|
1557 | {
|
---|
1558 | macrovalue = defaultmacros->parameter_find("Style", macroname,
|
---|
1559 | (*paramhere).param);
|
---|
1560 | paramhere++;
|
---|
1561 | }
|
---|
1562 | }
|
---|
1563 | }
|
---|
1564 | if (macrovalue == NULL) packagehere++;
|
---|
1565 | }
|
---|
1566 |
|
---|
1567 | if (macrovalue != NULL)
|
---|
1568 | {
|
---|
1569 | // we found a macro
|
---|
1570 |
|
---|
1571 | // replace all the option macros (_1_, _2_, ...) in the value of this macro
|
---|
1572 | // and decide if we need to expand the value of this macro
|
---|
1573 | bool needsexpansion = false;
|
---|
1574 | text_t tempmacrovalue;
|
---|
1575 | tempmacrovalue.clear();
|
---|
1576 | hereit = macrovalue->value.begin();
|
---|
1577 | endit = macrovalue->value.end();
|
---|
1578 | if (hereit != endit) c = (*hereit);
|
---|
1579 | while (hereit != endit)
|
---|
1580 | {
|
---|
1581 | if (c == '\\')
|
---|
1582 | {
|
---|
1583 | // found an escape character
|
---|
1584 | needsexpansion = true;
|
---|
1585 | tempmacrovalue.push_back(c);
|
---|
1586 | c = my_ttnextchar (hereit, endit);
|
---|
1587 | if (hereit != endit) tempmacrovalue.push_back(c);
|
---|
1588 | c = my_ttnextchar (hereit, endit);
|
---|
1589 | }
|
---|
1590 | else if (c == '_')
|
---|
1591 | {
|
---|
1592 | text_t::const_iterator savedhereit = hereit;
|
---|
1593 |
|
---|
1594 | // attempt to get a number
|
---|
1595 | int argnum = 0;
|
---|
1596 | unsigned short digc = my_ttnextchar (hereit, endit);
|
---|
1597 | while (digc >= '0' && digc <= '9') {
|
---|
1598 | argnum = argnum*10 + digc - '0';
|
---|
1599 | digc = my_ttnextchar (hereit, endit);
|
---|
1600 | }
|
---|
1601 | if (digc == '_' && argnum > 0) {
|
---|
1602 | // found an option macro, append the appropriate text
|
---|
1603 | text_tlist::iterator ttlisthere = splitmacroparam.begin();
|
---|
1604 | text_tlist::iterator ttlistend = splitmacroparam.end();
|
---|
1605 | while ((argnum > 1) && (ttlisthere != ttlistend)) {
|
---|
1606 | argnum--;
|
---|
1607 | ttlisthere++;
|
---|
1608 | }
|
---|
1609 | if (ttlisthere != ttlistend) {
|
---|
1610 | tempmacrovalue.append(*ttlisthere);
|
---|
1611 | if (findchar((*ttlisthere).begin(), (*ttlisthere).end(), '_') != (*ttlisthere).end())
|
---|
1612 | needsexpansion = true;
|
---|
1613 | }
|
---|
1614 |
|
---|
1615 | c = my_ttnextchar (hereit, endit);
|
---|
1616 |
|
---|
1617 | } else {
|
---|
1618 | // wasn't a option macro
|
---|
1619 | needsexpansion = true;
|
---|
1620 | tempmacrovalue.push_back(c);
|
---|
1621 | hereit = savedhereit;
|
---|
1622 | c = my_ttnextchar (hereit, endit);
|
---|
1623 | }
|
---|
1624 | }
|
---|
1625 | else
|
---|
1626 | {
|
---|
1627 | tempmacrovalue.push_back(c);
|
---|
1628 | c = my_ttnextchar (hereit, endit);
|
---|
1629 | }
|
---|
1630 | }
|
---|
1631 |
|
---|
1632 | // recursively replace this macro (if we need to)
|
---|
1633 | if (needsexpansion) {
|
---|
1634 | expandstring (*packagehere, tempmacrovalue, outputtext, recursiondepth+1);
|
---|
1635 | } else {
|
---|
1636 | outputtext += tempmacrovalue;
|
---|
1637 | }
|
---|
1638 |
|
---|
1639 | return true;
|
---|
1640 | }
|
---|
1641 |
|
---|
1642 | if (logout != NULL) {
|
---|
1643 | (*logout) << text_t2ascii << "Warning: _" <<
|
---|
1644 | macropackage << ":" << macroname << "_ not found\n";
|
---|
1645 | }
|
---|
1646 |
|
---|
1647 | return false; // didn't find the macro
|
---|
1648 | }
|
---|
1649 |
|
---|
1650 |
|
---|
1651 | void displayclass::printdefaultmacros ()
|
---|
1652 | {
|
---|
1653 | defpackagemap::const_iterator packagemapit;
|
---|
1654 | defmacromap::const_iterator macromapit;
|
---|
1655 | defparammap::const_iterator parammapit;
|
---|
1656 | const mvalue *mvalueptr;
|
---|
1657 | outconvertclass text_t2ascii;
|
---|
1658 |
|
---|
1659 | text_t packagename, macroname, macroparam;
|
---|
1660 |
|
---|
1661 | for (packagemapit = defaultmacros->package_begin();
|
---|
1662 | packagemapit != defaultmacros->package_end();
|
---|
1663 | packagemapit++)
|
---|
1664 | {
|
---|
1665 | packagename = (*packagemapit).first;
|
---|
1666 | // cerr << "***package : \"" << packagename << "\"\n";
|
---|
1667 |
|
---|
1668 | for (macromapit = (*packagemapit).second.begin();
|
---|
1669 | macromapit != (*packagemapit).second.end();
|
---|
1670 | macromapit++)
|
---|
1671 | {
|
---|
1672 | macroname = (*macromapit).first;
|
---|
1673 | // cerr << "***macroname : \"" << macroname << "\"\n";
|
---|
1674 |
|
---|
1675 | for (parammapit = (*macromapit).second.begin();
|
---|
1676 | parammapit != (*macromapit).second.end();
|
---|
1677 | parammapit++)
|
---|
1678 | {
|
---|
1679 | macroparam = (*parammapit).first;
|
---|
1680 | mvalueptr = &((*parammapit).second);
|
---|
1681 | cerr << text_t2ascii << "package : \"" << packagename << "\"\n";
|
---|
1682 | cerr << text_t2ascii << "macroname : \"" << macroname << "\"\n";
|
---|
1683 | cerr << text_t2ascii << "parameters: [" << macroparam << "]\n";
|
---|
1684 | cerr << text_t2ascii << "filename : \"" << mvalueptr->filename << "\"\n";
|
---|
1685 | cerr << text_t2ascii << "value : {" << mvalueptr->value << "}\n\n";
|
---|
1686 | }
|
---|
1687 | }
|
---|
1688 | }
|
---|
1689 | }
|
---|
1690 |
|
---|
1691 | void displayclass::printallparams ()
|
---|
1692 | {
|
---|
1693 | text_tset::iterator text_tsetit;
|
---|
1694 | outconvertclass text_t2ascii;
|
---|
1695 |
|
---|
1696 | cerr << text_t2ascii << "** allparams\n";
|
---|
1697 | for (text_tsetit=allparams.begin();
|
---|
1698 | text_tsetit!=allparams.end();
|
---|
1699 | text_tsetit++) {
|
---|
1700 | cerr << text_t2ascii << (*text_tsetit) << "\n";
|
---|
1701 | }
|
---|
1702 | cerr << text_t2ascii << "\n";
|
---|
1703 | }
|
---|
1704 |
|
---|
1705 |
|
---|
1706 |
|
---|
1707 | /////////////////////////////////////
|
---|
1708 | // stuff to do tricky output
|
---|
1709 | /////////////////////////////////////
|
---|
1710 |
|
---|
1711 | displayclass &operator<< (outconvertclass &theoutc, displayclass &display)
|
---|
1712 | {
|
---|
1713 | display.setconvertclass (&theoutc);
|
---|
1714 | return display;
|
---|
1715 | }
|
---|
1716 |
|
---|
1717 | displayclass &operator<< (displayclass &display, const text_t &t)
|
---|
1718 | {
|
---|
1719 | outconvertclass *theoutc = display.getconvertclass();
|
---|
1720 |
|
---|
1721 | if (theoutc == NULL) return display;
|
---|
1722 |
|
---|
1723 | text_t output;
|
---|
1724 | display.expandstring (t, output);
|
---|
1725 | (*theoutc) << output;
|
---|
1726 |
|
---|
1727 | return display;
|
---|
1728 | }
|
---|
1729 |
|
---|