src/output_xhtml.cpp

   1 /**
   2  * \file output_xhtml.cpp
   3  * This file is part of LyX, the document processor.
   4  * Licence details can be found in the file COPYING.
   5  *
   6  * \author Richard Kimberly Heck
   7  *
   8  * This code is based upon output_docbook.cpp
   9  *
  10  * Full author contact details are available in file CREDITS.
  11  */
  12
  13 #include <config.h>
  14
  15 #include "output_xhtml.h"
  16
  17 #include "Buffer.h"
  18 #include "BufferParams.h"
  19 #include "Counters.h"
  20 #include "Font.h"
  21 #include "Layout.h"
  22 #include "LayoutEnums.h"
  23 #include "Paragraph.h"
  24 #include "ParagraphList.h"
  25 #include "ParagraphParameters.h"
  26 #include "xml.h"
  27 #include "Text.h"
  28 #include "TextClass.h"
  29
  30 #include "support/lassert.h"
  31
  32 #include <stack>
  33 #include <iostream>
  34
  35 // Uncomment to activate debugging code.
  36 // #define XHTML_DEBUG
  37
  38 using namespace std;
  39 using namespace lyx::support;
  40
  41 namespace lyx {
  42
  43
  44 docstring fontToHtmlTag(xml::FontTypes type)
  45 {
  46     switch(type) {
  47         case xml::FontTypes::FT_EMPH:
  48             return from_utf8("em");
  49         case xml::FontTypes::FT_BOLD:
  50             return from_utf8("b");
  51         case xml::FontTypes::FT_NOUN:
  52             return from_utf8("dfn");
  53         case xml::FontTypes::FT_UBAR:
  54         case xml::FontTypes::FT_WAVE:
  55         case xml::FontTypes::FT_DBAR:
  56             return from_utf8("u");
  57         case xml::FontTypes::FT_SOUT:
  58         case xml::FontTypes::FT_XOUT:
  59             return from_utf8("del");
  60         case xml::FontTypes::FT_ITALIC:
  61             return from_utf8("i");
  62         case xml::FontTypes::FT_UPRIGHT:
  63         case xml::FontTypes::FT_SLANTED:
  64         case xml::FontTypes::FT_SMALLCAPS:
  65         case xml::FontTypes::FT_ROMAN:
  66         case xml::FontTypes::FT_SANS:
  67         case xml::FontTypes::FT_TYPE:
  68         case xml::FontTypes::FT_SIZE_TINY:
  69         case xml::FontTypes::FT_SIZE_SCRIPT:
  70         case xml::FontTypes::FT_SIZE_FOOTNOTE:
  71         case xml::FontTypes::FT_SIZE_SMALL:
  72         case xml::FontTypes::FT_SIZE_NORMAL:
  73         case xml::FontTypes::FT_SIZE_LARGE:
  74         case xml::FontTypes::FT_SIZE_LARGER:
  75         case xml::FontTypes::FT_SIZE_LARGEST:
  76         case xml::FontTypes::FT_SIZE_HUGE:
  77         case xml::FontTypes::FT_SIZE_HUGER:
  78         case xml::FontTypes::FT_SIZE_INCREASE:
  79         case xml::FontTypes::FT_SIZE_DECREASE:
  80             return from_utf8("span");
  81     }
  82     // kill warning
  83     return docstring();
  84 }
  85
  86
  87 docstring fontToHtmlAttribute(xml::FontTypes type)
  88 {
  89         switch(type) {
  90         case xml::FontTypes::FT_EMPH:
  91         case xml::FontTypes::FT_BOLD:
  92                 return from_ascii("");
  93         case xml::FontTypes::FT_NOUN:
  94                 return from_ascii("class='lyxnoun'");
  95         case xml::FontTypes::FT_UBAR:
  96                 return from_ascii("");
  97         case xml::FontTypes::FT_DBAR:
  98                 return from_ascii("class='dline'");
  99         case xml::FontTypes::FT_XOUT:
 100         case xml::FontTypes::FT_SOUT:
 101                 return from_ascii("class='strikeout'");
 102         case xml::FontTypes::FT_WAVE:
 103                 return from_ascii("class='wline'");
 104         case xml::FontTypes::FT_ITALIC:
 105                 return from_ascii("");
 106         case xml::FontTypes::FT_UPRIGHT:
 107                 return from_ascii("style='font-style:normal;'");
 108         case xml::FontTypes::FT_SLANTED:
 109                 return from_ascii("style='font-style:oblique;'");
 110         case xml::FontTypes::FT_SMALLCAPS:
 111                 return from_ascii("style='font-variant:small-caps;'");
 112         case xml::FontTypes::FT_ROMAN:
 113                 return from_ascii("style='font-family:serif;'");
 114         case xml::FontTypes::FT_SANS:
 115                 return from_ascii("style='font-family:sans-serif;'");
 116         case xml::FontTypes::FT_TYPE:
 117                 return from_ascii("style='font-family:monospace;'");
 118         case xml::FontTypes::FT_SIZE_TINY:
 119         case xml::FontTypes::FT_SIZE_SCRIPT:
 120         case xml::FontTypes::FT_SIZE_FOOTNOTE:
 121                 return from_ascii("style='font-size:x-small;'");
 122         case xml::FontTypes::FT_SIZE_SMALL:
 123                 return from_ascii("style='font-size:small;'");
 124         case xml::FontTypes::FT_SIZE_NORMAL:
 125                 return from_ascii("style='font-size:normal;'");
 126         case xml::FontTypes::FT_SIZE_LARGE:
 127                 return from_ascii("style='font-size:large;'");
 128         case xml::FontTypes::FT_SIZE_LARGER:
 129         case xml::FontTypes::FT_SIZE_LARGEST:
 130                 return from_ascii("style='font-size:x-large;'");
 131         case xml::FontTypes::FT_SIZE_HUGE:
 132         case xml::FontTypes::FT_SIZE_HUGER:
 133                 return from_ascii("style='font-size:xx-large;'");
 134         case xml::FontTypes::FT_SIZE_INCREASE:
 135                 return from_ascii("style='font-size:larger;'");
 136         case xml::FontTypes::FT_SIZE_DECREASE:
 137                 return from_ascii("style='font-size:smaller;'");
 138         }
 139         // kill warning
 140         return from_ascii("");
 141 }
 142
 143
 144 xml::FontTag xhtmlStartFontTag(xml::FontTypes type)
 145 {
 146         return xml::FontTag(fontToHtmlTag(type), fontToHtmlAttribute(type), type);
 147 }
 148
 149
 150 xml::EndFontTag xhtmlEndFontTag(xml::FontTypes type)
 151 {
 152         return xml::EndFontTag(fontToHtmlTag(type), type);
 153 }
 154
 155 namespace {
 156
 157 // convenience functions
 158
 159 inline void openParTag(XMLStream & xs, Layout const & lay,
 160                        std::string const & parlabel)
 161 {
 162         string attrs = lay.htmlGetAttrString();
 163         if (!parlabel.empty())
 164                 attrs += " id='" + parlabel + "'";
 165         xs << xml::ParTag(lay.htmltag(), attrs);
 166 }
 167
 168
 169 void openParTag(XMLStream & xs, Layout const & lay,
 170                 std::string const & cssclass,
 171                 std::string const & parlabel) {
 172     string attrs = "class='" + cssclass + "'";
 173     if (!parlabel.empty())
 174         attrs += " id='" + parlabel + "'";
 175     xs << xml::ParTag(lay.htmltag(), attrs);
 176 }
 177
 178 void openParTag(XMLStream & xs, Layout const & lay,
 179                 ParagraphParameters const & params,
 180                 std::string const & parlabel)
 181 {
 182         // FIXME Are there other things we should handle here?
 183         string const align = alignmentToCSS(params.align());
 184         if (align.empty()) {
 185                 openParTag(xs, lay, parlabel);
 186                 return;
 187         }
 188         string attrs = lay.htmlGetAttrString() + " style='text-align: " + align + ";'";
 189         if (!parlabel.empty())
 190                 attrs += " id='" + parlabel + "'";
 191         xs << xml::ParTag(lay.htmltag(), attrs);
 192 }
 193
 194
 195 inline void closeTag(XMLStream & xs, Layout const & lay)
 196 {
 197         xs << xml::EndTag(lay.htmltag());
 198 }
 199
 200
 201 inline void openLabelTag(XMLStream & xs, Layout const & lay)
 202 {
 203         xs << xml::StartTag(lay.htmllabeltag(), lay.htmllabelattr());
 204 }
 205
 206
 207 inline void closeLabelTag(XMLStream & xs, Layout const & lay)
 208 {
 209         xs << xml::EndTag(lay.htmllabeltag());
 210 }
 211
 212
 213 inline void openItemTag(XMLStream & xs, Layout const & lay)
 214 {
 215         if (lay.htmlitemtag() != "NONE") {
 216                 xs << xml::StartTag(lay.htmlitemtag(), lay.htmlitemattr(), true);
 217         }
 218 }
 219
 220
 221 void openItemTag(XMLStream & xs, Layout const & lay,
 222              ParagraphParameters const & params)
 223 {
 224         if (lay.htmlitemtag() != "NONE") {
 225                 // FIXME Are there other things we should handle here?
 226                 string const align = alignmentToCSS(params.align());
 227                 if (align.empty()) {
 228                         openItemTag(xs, lay);
 229                         return;
 230                 }
 231                 string attrs = lay.htmlGetAttrString() + " style='text-align: " + align + ";'";
 232                 xs << xml::StartTag(lay.htmlitemtag(), attrs);
 233         }
 234 }
 235
 236
 237 inline void closeItemTag(XMLStream & xs, Layout const & lay)
 238 {
 239         if (lay.htmlitemtag() != "NONE") {
 240                 xs << xml::EndTag(lay.htmlitemtag());
 241         }
 242 }
 243
 244 // end of convenience functions
 245
 246 ParagraphList::const_iterator findLastParagraph(
 247         ParagraphList::const_iterator p,
 248         ParagraphList::const_iterator const & pend)
 249 {
 250         for (++p; p != pend && p->layout().latextype == LATEX_PARAGRAPH; ++p)
 251                 ;
 252
 253         return p;
 254 }
 255
 256
 257 ParagraphList::const_iterator findEndOfEnvironment(
 258                 ParagraphList::const_iterator const & pstart,
 259                 ParagraphList::const_iterator const & pend)
 260 {
 261         ParagraphList::const_iterator p = pstart;
 262         Layout const & bstyle = p->layout();
 263         size_t const depth = p->params().depth();
 264         for (++p; p != pend; ++p) {
 265                 Layout const & style = p->layout();
 266                 // It shouldn't happen that e.g. a section command occurs inside
 267                 // a quotation environment, at a higher depth, but as of 6/2009,
 268                 // it can happen. We pretend that it's just at lowest depth.
 269                 if (style.latextype == LATEX_COMMAND)
 270                         return p;
 271
 272                 // If depth is down, we're done
 273                 if (p->params().depth() < depth)
 274                         return p;
 275
 276                 // If depth is up, we're not done
 277                 if (p->params().depth() > depth)
 278                         continue;
 279
 280                 // FIXME I am not sure about the first check.
 281                 // Surely we *could* have different layouts that count as
 282                 // LATEX_PARAGRAPH, right?
 283                 if (style.latextype == LATEX_PARAGRAPH || style != bstyle)
 284                         return p;
 285         }
 286         return pend;
 287 }
 288
 289
 290 ParagraphList::const_iterator makeParagraphs(Buffer const & buf,
 291                                             XMLStream & xs,
 292                                             OutputParams const & runparams,
 293                                             Text const & text,
 294                                             ParagraphList::const_iterator const & pbegin,
 295                                             ParagraphList::const_iterator const & pend)
 296 {
 297         ParagraphList::const_iterator const begin = text.paragraphs().begin();
 298         ParagraphList::const_iterator par = pbegin;
 299         for (; par != pend; ++par) {
 300                 Layout const & lay = par->layout();
 301                 if (!lay.counter.empty())
 302                         buf.masterBuffer()->params().
 303                             documentClass().counters().step(lay.counter, OutputUpdate);
 304
 305                 // FIXME We should see if there's a label to be output and
 306                 // do something with it.
 307                 if (par != pbegin)
 308                         xs << xml::CR();
 309
 310                 // We want to open the paragraph tag if:
 311                 //   (i) the current layout permits multiple paragraphs
 312                 //  (ii) we are either not already inside a paragraph (HTMLIsBlock) OR
 313                 //       we are, but this is not the first paragraph
 314                 //
 315                 // But there is also a special case, and we first see whether we are in it.
 316                 // We do not want to open the paragraph tag if this paragraph contains
 317                 // only one item, and that item is "inline", i.e., not HTMLIsBlock (such
 318                 // as a branch). On the other hand, if that single item has a font change
 319                 // applied to it, then we still do need to open the paragraph.
 320                 //
 321                 // Obviously, this is very fragile. The main reason we need to do this is
 322                 // because of branches, e.g., a branch that contains an entire new section.
 323                 // We do not really want to wrap that whole thing in a <div>...</div>.
 324                 bool special_case = false;
 325                 Inset const * specinset = par->size() == 1 ? par->getInset(0) : nullptr;
 326                 if (specinset && !specinset->getLayout().htmlisblock()) {
 327                         Layout const & style = par->layout();
 328                         FontInfo const first_font = style.labeltype == LABEL_MANUAL ?
 329                                                 style.labelfont : style.font;
 330                         FontInfo const our_font =
 331                                 par->getFont(buf.masterBuffer()->params(), 0,
 332                                        text.outerFont(distance(begin, par))).fontInfo();
 333                         if (first_font == our_font)
 334                                 special_case = true;
 335                 }
 336
 337                 bool const open_par = runparams.html_make_pars
 338                         && (!runparams.html_in_par || par != pbegin)
 339                         && !special_case;
 340
 341                 // We want to issue the closing tag if either:
 342                 //   (i)  We opened it, and either html_in_par is false,
 343                 //        or we're not in the last paragraph, anyway.
 344                 //   (ii) We didn't open it and html_in_par is true,
 345                 //        but we are in the first par, and there is a next par.
 346                 ParagraphList::const_iterator nextpar = par;
 347                 ++nextpar;
 348                 bool const close_par =
 349                         (open_par && (!runparams.html_in_par || nextpar != pend))
 350                         || (!open_par && runparams.html_in_par && par == pbegin && nextpar != pend);
 351
 352                 if (open_par) {
 353                         // We do not issue the paragraph id if we are doing
 354                         // this for the TOC (or some similar purpose)
 355                         openParTag(xs, lay, par->params(),
 356                                    runparams.for_toc ? "" : par->magicLabel());
 357                 }
 358
 359                 docstring const deferred = par->simpleLyXHTMLOnePar(buf, xs,
 360                         runparams, text.outerFont(distance(begin, par)),
 361                         open_par, close_par);
 362
 363                 if (close_par) {
 364                         closeTag(xs, lay);
 365                         xs << xml::CR();
 366                 }
 367
 368                 if (!deferred.empty()) {
 369                         xs << XMLStream::ESCAPE_NONE << deferred << xml::CR();
 370                 }
 371         }
 372         return pend;
 373 }
 374
 375
 376 ParagraphList::const_iterator makeBibliography(Buffer const & buf,
 377                                 XMLStream & xs,
 378                                 OutputParams const & runparams,
 379                                 Text const & text,
 380                                 ParagraphList::const_iterator const & pbegin,
 381                                 ParagraphList::const_iterator const & pend)
 382 {
 383         // FIXME XHTML
 384         // Use TextClass::htmlTOCLayout() to figure out how we should look.
 385         xs << xml::StartTag("h2", "class='bibliography'")
 386            << pbegin->layout().labelstring(false)
 387            << xml::EndTag("h2")
 388            << xml::CR()
 389            << xml::StartTag("div", "class='bibliography'")
 390            << xml::CR();
 391         makeParagraphs(buf, xs, runparams, text, pbegin, pend);
 392         xs << xml::EndTag("div");
 393         return pend;
 394 }
 395
 396
 397 bool isNormalEnv(Layout const & lay)
 398 {
 399         return lay.latextype == LATEX_ENVIRONMENT
 400             || lay.latextype == LATEX_BIB_ENVIRONMENT;
 401 }
 402
 403
 404 ParagraphList::const_iterator makeEnvironment(Buffer const & buf,
 405                                               XMLStream & xs,
 406                                               OutputParams const & runparams,
 407                                               Text const & text,
 408                                               ParagraphList::const_iterator const & pbegin,
 409                                               ParagraphList::const_iterator const & pend)
 410 {
 411         ParagraphList::const_iterator const begin = text.paragraphs().begin();
 412         ParagraphList::const_iterator par = pbegin;
 413         Layout const & bstyle = par->layout();
 414         depth_type const origdepth = pbegin->params().depth();
 415
 416         // open tag for this environment
 417         if ((bstyle.labeltype == LABEL_ENUMERATE || bstyle.labeltype == LABEL_ITEMIZE)
 418                 && bstyle.htmlclass().empty()) {
 419                 // In this case, we have to calculate the CSS class ourselves, each time
 420                 // through
 421                 // FIXME We assume in these cases that the standard counters are being used.
 422                 // (We also do not deal with 'resume' counters, though I'm not sure that can
 423                 // be done at all in HTML.)
 424
 425                 // Code adapated from Buffer::Impl::setLabel
 426                 bool const isenum = bstyle.labeltype == LABEL_ENUMERATE;
 427                 docstring enumcounter = bstyle.counter.empty() ?
 428                                         ( isenum ? from_ascii("enum") : from_ascii("lyxitem") ) :
 429                                         bstyle.counter;
 430                 switch (par->itemdepth) {
 431                 case 2:
 432                         enumcounter += 'i';
 433                         // fall through
 434                 case 1:
 435                         enumcounter += 'i';
 436                         // fall through
 437                 case 0:
 438                         enumcounter += 'i';
 439                         break;
 440                 case 3:
 441                         enumcounter += "iv";
 442                         break;
 443                 default:
 444                         // not a valid enumdepth...
 445                         break;
 446                 }
 447                 openParTag(xs, bstyle,
 448                                    string( isenum ? "lyxenum" : "lyxitem" ) + " "
 449                                         + to_utf8(enumcounter), pbegin->magicLabel());
 450         }
 451         else
 452                 openParTag(xs, bstyle, pbegin->magicLabel());
 453         xs << xml::CR();
 454
 455         // we will on occasion need to remember a layout from before.
 456         Layout const * lastlay = nullptr;
 457
 458         while (par != pend) {
 459                 Layout const & style = par->layout();
 460                 // the counter only gets stepped if we're in some kind of list,
 461                 // or if it's the first time through.
 462                 // note that enum, etc, are handled automatically.
 463                 // FIXME There may be a bug here about user defined enumeration
 464                 // types. If so, then we'll need to take the counter and add "i",
 465                 // "ii", etc, as with enum.
 466                 Counters & cnts = buf.masterBuffer()->params().documentClass().counters();
 467                 docstring const & cntr = style.counter;
 468                 if (!style.counter.empty()
 469                     && (par == pbegin || !isNormalEnv(style))
 470                                 && cnts.hasCounter(cntr)
 471                         )
 472                         cnts.step(cntr, OutputUpdate);
 473                 ParagraphList::const_iterator send;
 474
 475                 switch (style.latextype) {
 476                 case LATEX_ENVIRONMENT:
 477                 case LATEX_LIST_ENVIRONMENT:
 478                 case LATEX_ITEM_ENVIRONMENT: {
 479                         // There are two possibilities in this case.
 480                         // One is that we are still in the environment in which we
 481                         // started---which we will be if the depth is the same.
 482                         if (par->params().depth() == origdepth) {
 483                                 LATTEST(bstyle == style);
 484                                 if (lastlay != nullptr) {
 485                                         closeItemTag(xs, *lastlay);
 486                                         lastlay = nullptr;
 487                                 }
 488
 489                                 // this will be positive, if we want to skip the
 490                                 // initial word (if it's been taken for the label).
 491                                 pos_type sep = 0;
 492                                 bool const labelfirst = style.htmllabelfirst();
 493                                 if (!labelfirst)
 494                                         openItemTag(xs, style, par->params());
 495
 496                                 // label output
 497                                 if (style.labeltype != LABEL_NO_LABEL &&
 498                                     style.htmllabeltag() != "NONE") {
 499                                         if (isNormalEnv(style)) {
 500                                                 // in this case, we print the label only for the first
 501                                                 // paragraph (as in a theorem).
 502                                                 if (par == pbegin) {
 503                                                         docstring const lbl =
 504                                                                         pbegin->params().labelString();
 505                                                         if (!lbl.empty()) {
 506                                                                 openLabelTag(xs, style);
 507                                                                 xs << lbl;
 508                                                                 closeLabelTag(xs, style);
 509                                                         }
 510                                                         xs << xml::CR();
 511                                                 }
 512                                         } else { // some kind of list
 513                                                 if (style.labeltype == LABEL_MANUAL) {
 514                                                         openLabelTag(xs, style);
 515                                                         sep = par->firstWordLyXHTML(xs, runparams);
 516                                                         closeLabelTag(xs, style);
 517                                                         xs << xml::CR();
 518                                                 }
 519                                                 else {
 520                                                         docstring const & ls = par->params().labelString();
 521                                                         if (!ls.empty()) {
 522                                                                 openLabelTag(xs, style);
 523                                                                 xs << ls;
 524                                                                 closeLabelTag(xs, style);
 525                                                                 xs << xml::CR();
 526                                                         }
 527                                                 }
 528                                         }
 529                                 } // end label output
 530
 531                                 if (labelfirst)
 532                                         openItemTag(xs, style, par->params());
 533
 534                                 docstring deferred = par->simpleLyXHTMLOnePar(buf, xs, runparams,
 535                                         text.outerFont(distance(begin, par)), true, true, sep);
 536                                 xs << XMLStream::ESCAPE_NONE << deferred;
 537                                 ++par;
 538
 539                                 // We may not want to close the tag yet, in particular:
 540                                 // If we're not at the end...
 541                                 if (par != pend
 542                                         //  and are doing items...
 543                                          && !isNormalEnv(style)
 544                                          // and if the depth has changed...
 545                                          && par->params().depth() != origdepth) {
 546                                          // then we'll save this layout for later, and close it when
 547                                          // we get another item.
 548                                         lastlay = &style;
 549                                 } else
 550                                         closeItemTag(xs, style);
 551                                 xs << xml::CR();
 552                         }
 553                         // The other possibility is that the depth has increased, in which
 554                         // case we need to recurse.
 555                         else {
 556                                 send = findEndOfEnvironment(par, pend);
 557                                 par = makeEnvironment(buf, xs, runparams, text, par, send);
 558                         }
 559                         break;
 560                 }
 561                 case LATEX_PARAGRAPH:
 562                         send = findLastParagraph(par, pend);
 563                         par = makeParagraphs(buf, xs, runparams, text, par, send);
 564                         break;
 565                 // Shouldn't happen
 566                 case LATEX_BIB_ENVIRONMENT:
 567                         send = par;
 568                         ++send;
 569                         par = makeParagraphs(buf, xs, runparams, text, par, send);
 570                         break;
 571                 // Shouldn't happen
 572                 case LATEX_COMMAND:
 573                         ++par;
 574                         break;
 575                 }
 576         }
 577
 578         if (lastlay != nullptr)
 579                 closeItemTag(xs, *lastlay);
 580         closeTag(xs, bstyle);
 581         xs << xml::CR();
 582         return pend;
 583 }
 584
 585
 586 void makeCommand(Buffer const & buf,
 587                  XMLStream & xs,
 588                  OutputParams const & runparams,
 589                  Text const & text,
 590                  ParagraphList::const_iterator const & pbegin)
 591 {
 592         Layout const & style = pbegin->layout();
 593         if (!style.counter.empty())
 594                 buf.masterBuffer()->params().
 595                     documentClass().counters().step(style.counter, OutputUpdate);
 596
 597         bool const make_parid = !runparams.for_toc && runparams.html_make_pars;
 598
 599         openParTag(xs, style, pbegin->params(),
 600                    make_parid ? pbegin->magicLabel() : "");
 601
 602         // Label around sectioning number:
 603         // FIXME Probably need to account for LABEL_MANUAL
 604         // FIXME Probably also need now to account for labels ABOVE and CENTERED.
 605         if (style.labeltype != LABEL_NO_LABEL) {
 606                 openLabelTag(xs, style);
 607                 xs << pbegin->params().labelString();
 608                 closeLabelTag(xs, style);
 609                 // Otherwise the label might run together with the text
 610                 xs << from_ascii(" ");
 611         }
 612
 613         ParagraphList::const_iterator const begin = text.paragraphs().begin();
 614         pbegin->simpleLyXHTMLOnePar(buf, xs, runparams,
 615                         text.outerFont(distance(begin, pbegin)));
 616         closeTag(xs, style);
 617         xs << xml::CR();
 618 }
 619
 620 } // end anonymous namespace
 621
 622
 623 void xhtmlParagraphs(Text const & text,
 624                        Buffer const & buf,
 625                        XMLStream & xs,
 626                        OutputParams const & runparams)
 627 {
 628         ParagraphList const & paragraphs = text.paragraphs();
 629         if (runparams.par_begin == runparams.par_end) {
 630                 runparams.par_begin = 0;
 631                 runparams.par_end = paragraphs.size();
 632         }
 633         pit_type bpit = runparams.par_begin;
 634         pit_type const epit = runparams.par_end;
 635         LASSERT(bpit < epit,
 636                 { xs << XMLStream::ESCAPE_NONE << "<!-- XHTML output error! -->\n"; return; });
 637
 638         OutputParams ourparams = runparams;
 639         ParagraphList::const_iterator const pend =
 640                 (epit == (int) paragraphs.size()) ?
 641                         paragraphs.end() : paragraphs.iterator_at(epit);
 642         std::stack<int> headerLevels;
 643
 644         while (bpit < epit) {
 645                 ParagraphList::const_iterator par = paragraphs.iterator_at(bpit);
 646                 if (par->params().startOfAppendix()) {
 647                         // We want to reset the counter corresponding to toplevel sectioning
 648                         Layout const & lay =
 649                                 buf.masterBuffer()->params().documentClass().getTOCLayout();
 650                         docstring const cnt = lay.counter;
 651                         if (!cnt.empty()) {
 652                                 Counters & cnts =
 653                                         buf.masterBuffer()->params().documentClass().counters();
 654                                 cnts.reset(cnt);
 655                         }
 656                 }
 657                 Layout const & style = par->layout();
 658                 ParagraphList::const_iterator const lastpar = par;
 659                 ParagraphList::const_iterator send;
 660
 661                 // Think about adding <section> and/or </section>s.
 662                 // Document title is not in Sectioning, but rather in FrontMatter, so that it does not need to be taken
 663                 // into account.
 664                 if (style.category() == from_utf8("Sectioning")) {
 665                         int level = style.toclevel;
 666
 667                         // Need to close a previous section if it has the same level or a higher one (close <section> if opening a
 668                         // <h2> after a <h2>, <h3>, <h4>, <h5> or <h6>). More examples:
 669                         //   - current: h2; back: h1; do not close any <section>
 670                         //   - current: h1; back: h2; close two <section> (first the <h2>, then the <h1>, so a new <h1> can come)
 671                         while (!headerLevels.empty() && level <= headerLevels.top()) {
 672                                 // Output the tag only if it corresponds to a legit section.
 673                                 int stackLevel = headerLevels.top();
 674                                 if (stackLevel != Layout::NOT_IN_TOC) {
 675                                         xs << xml::EndTag("section");
 676                                         xs << xml::CR();
 677                                 }
 678                                 headerLevels.pop();
 679                         }
 680
 681                         // Open the new section: first push it onto the stack, then output it in XHTML.
 682                         headerLevels.push(level);
 683                         // Some sectioning-like elements should not be output (such as FrontMatter).
 684                         if (level != Layout::NOT_IN_TOC ) {
 685                                 xs << xml::StartTag("section");
 686                                 xs << xml::CR();
 687                         }
 688                 }
 689
 690                 switch (style.latextype) {
 691                 case LATEX_COMMAND: {
 692                         // The files with which we are working never have more than
 693                         // one paragraph in a command structure.
 694                         // FIXME
 695                         // if (ourparams.html_in_par)
 696                         //   fix it so we don't get sections inside standard, e.g.
 697                         // note that we may then need to make runparams not const, so we
 698                         // can communicate that back.
 699                         // FIXME Maybe this fix should be in the routines themselves, in case
 700                         // they are called from elsewhere.
 701                         makeCommand(buf, xs, ourparams, text, par);
 702                         ++par;
 703                         break;
 704                 }
 705                 case LATEX_ENVIRONMENT:
 706                 case LATEX_LIST_ENVIRONMENT:
 707                 case LATEX_ITEM_ENVIRONMENT: {
 708                         // FIXME Same fix here.
 709                         send = findEndOfEnvironment(par, pend);
 710                         par = makeEnvironment(buf, xs, ourparams, text, par, send);
 711                         break;
 712                 }
 713                 case LATEX_BIB_ENVIRONMENT: {
 714                         // FIXME Same fix here.
 715                         send = findEndOfEnvironment(par, pend);
 716                         par = makeBibliography(buf, xs, ourparams, text, par, send);
 717                         break;
 718                 }
 719                 case LATEX_PARAGRAPH:
 720                         send = findLastParagraph(par, pend);
 721                         par = makeParagraphs(buf, xs, ourparams, text, par, send);
 722                         break;
 723                 }
 724                 bpit += distance(lastpar, par);
 725         }
 726
 727         // If need be, close <section>s, but only at the end of the document (otherwise, dealt with at the beginning
 728         // of the loop).
 729         while (!headerLevels.empty() && headerLevels.top() != Layout::NOT_IN_TOC) {
 730                 headerLevels.pop();
 731                 xs << xml::EndTag("section");
 732                 xs << xml::CR();
 733         }
 734 }
 735
 736
 737 string alignmentToCSS(LyXAlignment align)
 738 {
 739         switch (align) {
 740         case LYX_ALIGN_BLOCK:
 741                 // we are NOT going to use text-align: justify!!
 742         case LYX_ALIGN_LEFT:
 743                 return "left";
 744         case LYX_ALIGN_RIGHT:
 745                 return "right";
 746         case LYX_ALIGN_CENTER:
 747                 return "center";
 748         default:
 749                 break;
 750         }
 751         return "";
 752 }
 753
 754 } // namespace lyx