src/mathed/MacroTable.cpp

   1 /**
   2  * \file MacroTable.cpp
   3  * This file is part of LyX, the document processor.
   4  * Licence details can be found in the file COPYING.
   5  *
   6  * \author André Pönitz
   7  *
   8  * Full author contact details are available in file CREDITS.
   9  */
  10
  11 #include <config.h>
  12
  13 #include "InsetMathSqrt.h"
  14 #include "MacroTable.h"
  15 #include "MathMacroTemplate.h"
  16 #include "MathMacroArgument.h"
  17 #include "MathStream.h"
  18 #include "MathSupport.h"
  19 #include "InsetMathNest.h"
  20
  21 #include "Buffer.h"
  22 #include "DocIterator.h"
  23 #include "InsetList.h"
  24 #include "Text.h"
  25
  26 #include "support/debug.h"
  27 #include "support/lassert.h"
  28
  29 #include <sstream>
  30
  31 using namespace std;
  32
  33 namespace lyx {
  34
  35
  36 /////////////////////////////////////////////////////////////////////
  37 //
  38 // MacroData
  39 //
  40 /////////////////////////////////////////////////////////////////////
  41
  42 MacroData::MacroData(Buffer * buf)
  43         : buffer_(buf), queried_(true), numargs_(0), optionals_(0), lockCount_(0),
  44           redefinition_(false), type_(MacroTypeNewcommand)
  45 {}
  46
  47
  48
  49 MacroData::MacroData(Buffer * buf, DocIterator const & pos)
  50         : buffer_(buf), pos_(pos), queried_(false), numargs_(0),
  51           optionals_(0), lockCount_(0), redefinition_(false),
  52           type_(MacroTypeNewcommand)
  53 {
  54 }
  55
  56
  57 MacroData::MacroData(Buffer * buf, MathMacroTemplate const & macro)
  58         : buffer_(buf), queried_(false), numargs_(0), optionals_(0), lockCount_(0),
  59           redefinition_(false), type_(MacroTypeNewcommand)
  60 {
  61         queryData(macro);
  62 }
  63
  64
  65 void MacroData::expand(vector<MathData> const & args, MathData & to) const
  66 {
  67         updateData();
  68
  69         // Hack. Any inset with a cell would do.
  70         static InsetMathSqrt inset(0);
  71         inset.setBuffer(const_cast<Buffer &>(*buffer_));
  72
  73         // FIXME UNICODE
  74         asArray(display_.empty() ? definition_ : display_, inset.cell(0));
  75         //lyxerr << "MathData::expand: args: " << args << endl;
  76         //lyxerr << "MathData::expand: ar: " << inset.cell(0) << endl;
  77         for (DocIterator it = doc_iterator_begin(buffer_, &inset); it; it.forwardChar()) {
  78                 if (!it.nextInset())
  79                         continue;
  80                 if (it.nextInset()->lyxCode() != MATH_MACROARG_CODE)
  81                         continue;
  82                 //it.cell().erase(it.pos());
  83                 //it.cell().insert(it.pos(), it.nextInset()->asInsetMath()
  84                 size_t n = static_cast<MathMacroArgument*>(it.nextInset())->number();
  85                 if (n <= args.size()) {
  86                         it.cell().erase(it.pos());
  87                         it.cell().insert(it.pos(), args[n - 1]);
  88                 }
  89         }
  90         //lyxerr << "MathData::expand: res: " << inset.cell(0) << endl;
  91         to = inset.cell(0);
  92 }
  93
  94
  95 size_t MacroData::optionals() const
  96 {
  97         updateData();
  98         return optionals_;
  99 }
 100
 101
 102 vector<docstring> const &  MacroData::defaults() const
 103 {
 104         updateData();
 105         return defaults_;
 106 }
 107
 108
 109 void MacroData::unlock() const
 110 {
 111         --lockCount_;
 112         LASSERT(lockCount_ >= 0, /**/);
 113 }
 114
 115
 116 void MacroData::queryData(MathMacroTemplate const & macro) const
 117 {
 118         if (queried_)
 119                 return;
 120
 121         queried_ = true;
 122         definition_ = macro.definition();
 123         numargs_ = macro.numArgs();
 124         display_ = macro.displayDefinition();
 125         redefinition_ = macro.redefinition();
 126         type_ = macro.type();
 127         optionals_ = macro.numOptionals();
 128
 129         macro.getDefaults(defaults_);
 130 }
 131
 132
 133 void MacroData::updateData() const
 134 {
 135         if (queried_)
 136                 return;
 137
 138         LASSERT(buffer_ != 0, /**/);
 139
 140         // Try to fix position DocIterator. Should not do anything in theory.
 141         pos_.fixIfBroken();
 142
 143         // find macro template
 144         Inset * inset = pos_.nextInset();
 145         if (inset == 0 || inset->lyxCode() != MATHMACRO_CODE) {
 146                 lyxerr << "BUG: No macro template found by MacroData" << endl;
 147                 return;
 148         }
 149
 150         // query the data from the macro template
 151         queryData(static_cast<MathMacroTemplate const &>(*inset));
 152 }
 153
 154
 155 void MacroData::write(odocstream & os, bool overwriteRedefinition) const
 156 {
 157         updateData();
 158
 159         // find macro template
 160         Inset * inset = pos_.nextInset();
 161         if (inset == 0 || inset->lyxCode() != MATHMACRO_CODE) {
 162                 lyxerr << "BUG: No macro template found by MacroData" << endl;
 163                 return;
 164         }
 165
 166         // output template
 167         MathMacroTemplate const & tmpl =
 168                 static_cast<MathMacroTemplate const &>(*inset);
 169         WriteStream wi(os, false, true, WriteStream::wsDefault);
 170         tmpl.write(wi, overwriteRedefinition);
 171 }
 172
 173
 174 /////////////////////////////////////////////////////////////////////
 175 //
 176 // The global table of macros
 177 //
 178 /////////////////////////////////////////////////////////////////////
 179
 180 MacroTable & MacroTable::globalMacros()
 181 {
 182         static MacroTable theGlobalMacros;
 183         return theGlobalMacros;
 184 }
 185
 186
 187 MacroData const * MacroTable::get(docstring const & name) const
 188 {
 189         const_iterator it = find(name);
 190         return it == end() ? 0 : &it->second;
 191 }
 192
 193
 194 void MacroTable::insert(docstring const & name, MacroData const & data)
 195 {
 196         //lyxerr << "MacroTable::insert: " << to_utf8(name) << endl;
 197         operator[](name) = data;
 198 }
 199
 200
 201 void MacroTable::insert(Buffer * buf, docstring const & def, string const & requires)
 202 {
 203         //lyxerr << "MacroTable::insert, def: " << to_utf8(def) << endl;
 204         MathMacroTemplate mac(buf, def);
 205         MacroData data(buf, mac);
 206         data.requires() = requires;
 207         insert(mac.name(), data);
 208 }
 209
 210
 211 void MacroTable::getMacroNames(std::set<docstring> & names) const
 212 {
 213         for (const_iterator it = begin(); it != end(); ++it)
 214                 names.insert(it->first);
 215 }
 216
 217
 218 void MacroTable::dump()
 219 {
 220         lyxerr << "\n------------------------------------------" << endl;
 221         for (const_iterator it = begin(); it != end(); ++it)
 222                 lyxerr << to_utf8(it->first)
 223                         << " [" << to_utf8(it->second.definition()) << "] : "
 224                         << " [" << to_utf8(it->second.display()) << "] : "
 225                         << endl;
 226         lyxerr << "------------------------------------------" << endl;
 227 }
 228
 229
 230 /////////////////////////////////////////////////////////////////////
 231 //
 232 // MacroContext
 233 //
 234 /////////////////////////////////////////////////////////////////////
 235
 236 MacroContext::MacroContext(Buffer const * buf, DocIterator const & pos)
 237         : buf_(buf), pos_(pos)
 238 {
 239 }
 240
 241
 242 MacroData const * MacroContext::get(docstring const & name) const
 243 {
 244         return buf_->getMacro(name, pos_);
 245 }
 246
 247 } // namespace lyx