src/output_docbook.cpp

   1 /**
   2  * \file output_docbook.cpp
   3  * This file is part of LyX, the document processor.
   4  * Licence details can be found in the file COPYING.
   5  *
   6  * \author Lars Gullik Bjønnes
   7  * \author José Matos
   8  *
   9  * Full author contact details are available in file CREDITS.
  10  */
  11
  12 #include <config.h>
  13
  14 #include "output_docbook.h"
  15
  16 #include "Buffer.h"
  17 #include "buffer_funcs.h"
  18 #include "BufferParams.h"
  19 #include "Counters.h"
  20 #include "Layout.h"
  21 #include "OutputParams.h"
  22 #include "Paragraph.h"
  23 #include "paragraph_funcs.h"
  24 #include "ParagraphList.h"
  25 #include "ParagraphParameters.h"
  26 #include "sgml.h"
  27 #include "TextClass.h"
  28
  29 #include "support/convert.h"
  30 #include "support/debug.h"
  31 #include "support/lstrings.h"
  32
  33 #include <boost/next_prior.hpp>
  34
  35 using namespace std;
  36 using namespace lyx::support;
  37
  38 namespace lyx {
  39
  40 namespace {
  41
  42 ParagraphList::const_iterator searchParagraph(
  43         ParagraphList::const_iterator p,
  44   ParagraphList::const_iterator const & pend)
  45 {
  46         for (++p; p != pend && p->layout().latextype == LATEX_PARAGRAPH; ++p)
  47                 ;
  48
  49         return p;
  50 }
  51
  52
  53 ParagraphList::const_iterator searchCommand(
  54                 ParagraphList::const_iterator p,
  55                 ParagraphList::const_iterator const & pend)
  56 {
  57         Layout const & bstyle = p->layout();
  58
  59         for (++p; p != pend; ++p) {
  60                 Layout const & style = p->layout();
  61                 if (style.latextype == LATEX_COMMAND
  62                                 && style.commanddepth <= bstyle.commanddepth)
  63                         return p;
  64         }
  65         return pend;
  66 }
  67
  68
  69 ParagraphList::const_iterator searchEnvironment(
  70                 ParagraphList::const_iterator p,
  71                 ParagraphList::const_iterator const & pend)
  72 {
  73         Layout const & bstyle = p->layout();
  74         size_t const depth = p->params().depth();
  75         for (++p; p != pend; ++p) {
  76                 Layout const & style = p->layout();
  77                 if (style.latextype == LATEX_COMMAND)
  78                         return p;
  79
  80                 if (style.latextype == LATEX_PARAGRAPH) {
  81                         if (p->params().depth() > depth)
  82                                 continue;
  83                         return p;
  84                 }
  85
  86                 if (p->params().depth() < depth)
  87                         return p;
  88
  89                 if (style.latexname() != bstyle.latexname()
  90                                 && p->params().depth() == depth)
  91                         return p;
  92         }
  93         return pend;
  94 }
  95
  96
  97 ParagraphList::const_iterator makeParagraph(Buffer const & buf,
  98                                             odocstream & os,
  99                                             OutputParams const & runparams,
 100                                             ParagraphList const & paragraphs,
 101                                             ParagraphList::const_iterator const & pbegin,
 102                                             ParagraphList::const_iterator const & pend)
 103 {
 104         for (ParagraphList::const_iterator par = pbegin; par != pend; ++par) {
 105                 if (par != pbegin)
 106                         os << '\n';
 107                 if (buf.params().documentClass().isDefaultLayout(par->layout())
 108                     && par->emptyTag()) {
 109                         par->simpleDocBookOnePar(buf, os, runparams,
 110                                         outerFont(distance(paragraphs.begin(), par), paragraphs));
 111                 } else {
 112                         sgml::openTag(buf, os, runparams, *par);
 113                         par->simpleDocBookOnePar(buf, os, runparams,
 114                                         outerFont(distance(paragraphs.begin(), par), paragraphs));
 115                         sgml::closeTag(os, *par);
 116                 }
 117         }
 118         return pend;
 119 }
 120
 121
 122 ParagraphList::const_iterator makeEnvironment(Buffer const & buf,
 123                                               odocstream & os,
 124                                               OutputParams const & runparams,
 125                                               ParagraphList const & paragraphs,
 126                                               ParagraphList::const_iterator const & pbegin,
 127                                               ParagraphList::const_iterator const & pend) {
 128         ParagraphList::const_iterator par = pbegin;
 129
 130         Layout const & defaultstyle = buf.params().documentClass().defaultLayout();
 131         Layout const & bstyle = par->layout();
 132         string item_tag;
 133
 134         // Opening outter tag
 135         sgml::openTag(buf, os, runparams, *pbegin);
 136         os << '\n';
 137         if (bstyle.latextype == LATEX_ENVIRONMENT && bstyle.pass_thru)
 138                 os << "<![CDATA[";
 139
 140         while (par != pend) {
 141                 Layout const & style = par->layout();
 142                 ParagraphList::const_iterator send;
 143                 string id = par->getID(buf, runparams);
 144                 string wrapper = "";
 145                 pos_type sep = 0;
 146
 147                 // Opening inner tag
 148                 switch (bstyle.latextype) {
 149                 case LATEX_ENVIRONMENT:
 150                         if (!bstyle.innertag().empty()) {
 151                                 sgml::openTag(os, bstyle.innertag(), id);
 152                         }
 153                         break;
 154
 155                 case LATEX_ITEM_ENVIRONMENT:
 156                         if (!bstyle.labeltag().empty()) {
 157                                 sgml::openTag(os, bstyle.innertag(), id);
 158                                 sgml::openTag(os, bstyle.labeltag());
 159                                 sep = par->firstWord(os, runparams) + 1;
 160                                 sgml::closeTag(os, bstyle.labeltag());
 161                         }
 162                         wrapper = defaultstyle.latexname();
 163                         // If a sub list (embedded list) appears next with a
 164                         // different depth, then there is no need to open
 165                         // another tag at the current depth.
 166                         if(par->params().depth() == pbegin->params().depth()) {
 167                                 sgml::openTag(os, bstyle.itemtag());
 168                         }
 169                         break;
 170                 default:
 171                         break;
 172                 }
 173
 174                 switch (style.latextype) {
 175                 case LATEX_ENVIRONMENT:
 176                 case LATEX_ITEM_ENVIRONMENT: {
 177                         if (par->params().depth() == pbegin->params().depth()) {
 178                                 sgml::openTag(os, wrapper);
 179                                 par->simpleDocBookOnePar(buf, os, runparams, outerFont(distance(paragraphs.begin(), par), paragraphs), sep);
 180                                 sgml::closeTag(os, wrapper);
 181                                 ++par;
 182                         }
 183                         else {
 184                                 send = searchEnvironment(par, pend);
 185                                 par = makeEnvironment(buf, os, runparams, paragraphs, par,send);
 186                         }
 187                         break;
 188                 }
 189                 case LATEX_PARAGRAPH:
 190                         send = searchParagraph(par, pend);
 191                         par = makeParagraph(buf, os, runparams, paragraphs, par,send);
 192                         break;
 193                 default:
 194                         break;
 195                 }
 196
 197                 // Closing inner tag
 198                 switch (bstyle.latextype) {
 199                 case LATEX_ENVIRONMENT:
 200                         if (!bstyle.innertag().empty()) {
 201                                 sgml::closeTag(os, bstyle.innertag());
 202                                 os << '\n';
 203                         }
 204                         break;
 205                 case LATEX_ITEM_ENVIRONMENT:
 206                         // If a sub list (embedded list) appears next, then
 207                         // there is no need to close the current tag.
 208                         // par should have already been incremented to the next
 209                         // element. So we can compare the depth of the next
 210                         // element with pbegin.
 211                         // We need to be careful, that we don't dereference par
 212                         // when par == pend but at the same time that the
 213                         // current tag is closed.
 214                         if((par != pend && par->params().depth() == pbegin->params().depth()) || par == pend) {
 215                                 sgml::closeTag(os, bstyle.itemtag());
 216                         }
 217                         if (!bstyle.labeltag().empty())
 218                                 sgml::closeTag(os, bstyle.innertag());
 219                         break;
 220                 default:
 221                         break;
 222                 }
 223         }
 224
 225         if (bstyle.latextype == LATEX_ENVIRONMENT && bstyle.pass_thru)
 226                 os << "]]>";
 227
 228         // Closing outter tag
 229         sgml::closeTag(os, *pbegin);
 230
 231         return pend;
 232 }
 233
 234
 235 ParagraphList::const_iterator makeCommand(Buffer const & buf,
 236                                           odocstream & os,
 237                                           OutputParams const & runparams,
 238                                           ParagraphList const & paragraphs,
 239                                           ParagraphList::const_iterator const & pbegin,
 240                                           ParagraphList::const_iterator const & pend)
 241 {
 242         ParagraphList::const_iterator par = pbegin;
 243         Layout const & bstyle = par->layout();
 244
 245         //Open outter tag
 246         sgml::openTag(buf, os, runparams, *pbegin);
 247         os << '\n';
 248
 249         // Label around sectioning number:
 250         if (!bstyle.labeltag().empty()) {
 251                 sgml::openTag(os, bstyle.labeltag());
 252                 // We don't care about appendix in DOCBOOK.
 253                 os << par->expandLabel(bstyle, buf.params(), false);
 254                 sgml::closeTag(os, bstyle.labeltag());
 255         }
 256
 257         // Opend inner tag and  close inner tags
 258         sgml::openTag(os, bstyle.innertag());
 259         par->simpleDocBookOnePar(buf, os, runparams,  outerFont(distance(paragraphs.begin(), par), paragraphs));
 260         sgml::closeTag(os, bstyle.innertag());
 261         os << '\n';
 262
 263         ++par;
 264         while (par != pend) {
 265                 Layout const & style = par->layout();
 266                 ParagraphList::const_iterator send;
 267
 268                 switch (style.latextype) {
 269                 case LATEX_COMMAND: {
 270                         send = searchCommand(par, pend);
 271                         par = makeCommand(buf, os, runparams, paragraphs, par,send);
 272                         break;
 273                 }
 274                 case LATEX_ENVIRONMENT:
 275                 case LATEX_ITEM_ENVIRONMENT: {
 276                         send = searchEnvironment(par, pend);
 277                         par = makeEnvironment(buf, os, runparams, paragraphs, par,send);
 278                         break;
 279                 }
 280                 case LATEX_PARAGRAPH:
 281                         send = searchParagraph(par, pend);
 282                         par = makeParagraph(buf, os, runparams, paragraphs, par,send);
 283                         break;
 284                 default:
 285                         break;
 286                 }
 287         }
 288         // Close outter tag
 289         sgml::closeTag(os, *pbegin);
 290
 291         return pend;
 292 }
 293
 294 } // end anonym namespace
 295
 296
 297 void docbookParagraphs(ParagraphList const & paragraphs,
 298                        Buffer const & buf,
 299                        odocstream & os,
 300                        OutputParams const & runparams)
 301 {
 302         ParagraphList::const_iterator par = paragraphs.begin();
 303         ParagraphList::const_iterator pend = paragraphs.end();
 304
 305         BOOST_ASSERT(runparams.par_begin <= runparams.par_end);
 306         // if only part of the paragraphs will be outputed
 307         if (runparams.par_begin !=  runparams.par_end) {
 308                 par = boost::next(paragraphs.begin(), runparams.par_begin);
 309                 pend = boost::next(paragraphs.begin(), runparams.par_end);
 310                 // runparams will be passed to nested paragraphs, so
 311                 // we have to reset the range parameters.
 312                 const_cast<OutputParams&>(runparams).par_begin = 0;
 313                 const_cast<OutputParams&>(runparams).par_end = 0;
 314         }
 315
 316         while (par != pend) {
 317                 Layout const & style = par->layout();
 318                 ParagraphList::const_iterator lastpar = par;
 319                 ParagraphList::const_iterator send;
 320
 321                 switch (style.latextype) {
 322                 case LATEX_COMMAND: {
 323                         send = searchCommand(par, pend);
 324                         par = makeCommand(buf, os, runparams, paragraphs, par,send);
 325                         break;
 326                 }
 327                 case LATEX_ENVIRONMENT:
 328                 case LATEX_ITEM_ENVIRONMENT: {
 329                         send = searchEnvironment(par, pend);
 330                         par = makeEnvironment(buf, os, runparams, paragraphs, par,send);
 331                         break;
 332                 }
 333                 case LATEX_PARAGRAPH:
 334                         send = searchParagraph(par, pend);
 335                         par = makeParagraph(buf, os, runparams, paragraphs, par,send);
 336                         break;
 337                 default:
 338                         break;
 339                 }
 340                 // makeEnvironment may process more than one paragraphs and bypass pend
 341                 if (distance(lastpar, par) >= distance(lastpar, pend))
 342                         break;
 343         }
 344 }
 345
 346
 347 } // namespace lyx