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 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 "buffer_funcs.h"
  19 #include "BufferParams.h"
  20 #include "Counters.h"
  21 #include "Layout.h"
  22 #include "OutputParams.h"
  23 #include "Paragraph.h"
  24 #include "ParagraphList.h"
  25 #include "ParagraphParameters.h"
  26 #include "sgml.h"
  27 #include "Text.h"
  28 #include "TextClass.h"
  29
  30 #include "support/lassert.h"
  31 #include "support/debug.h"
  32 #include "support/lstrings.h"
  33
  34 #include <vector>
  35
  36 using namespace std;
  37 using namespace lyx::support;
  38
  39 namespace lyx {
  40
  41 namespace html {
  42
  43 docstring escapeChar(char_type c)
  44 {
  45         docstring str;
  46         switch (c) {
  47         case ' ':
  48                 str += " ";
  49                 break;
  50         case '&':
  51                 str += "&amp;";
  52                 break;
  53         case '<':
  54                 str += "&lt;";
  55                 break;
  56         case '>':
  57                 str += "&gt;";
  58                 break;
  59         default:
  60                 str += c;
  61                 break;
  62         }
  63         return str;
  64 }
  65
  66
  67 // escape what needs escaping
  68 docstring htmlize(docstring const & str) {
  69         odocstringstream d;
  70         docstring::const_iterator it = str.begin();
  71         docstring::const_iterator en = str.end();
  72         for (; it != en; ++it)
  73                 d << escapeChar(*it);
  74         return d.str();
  75 }
  76
  77
  78 bool isFontTag(string const & s)
  79 {
  80         return s == "em" || s == "strong"; // others?
  81 }
  82 } // namespace html
  83
  84
  85 docstring StartTag::asTag() const
  86 {
  87         string output = "<" + tag_;
  88         if (!attr_.empty())
  89                 output += " " + attr_;
  90         output += ">";
  91         return from_utf8(output);
  92 }
  93
  94
  95 docstring StartTag::asEndTag() const
  96 {
  97         string output = "</" + tag_ + ">";
  98         return from_utf8(output);
  99 }
 100
 101
 102 docstring EndTag::asEndTag() const
 103 {
 104         string output = "</" + tag_ + ">";
 105         return from_utf8(output);
 106 }
 107
 108
 109 docstring CompTag::asTag() const
 110 {
 111         string output = "<" + tag_;
 112         if (!attr_.empty())
 113                 output += " " + attr_;
 114         output += " />";
 115         return from_utf8(output);
 116 }
 117
 118
 119 ////////////////////////////////////////////////////////////////
 120 ///
 121 /// XHTMLStream
 122 ///
 123 ////////////////////////////////////////////////////////////////
 124
 125 XHTMLStream::XHTMLStream(odocstream & os)
 126                 :os_(os)
 127 {}
 128
 129
 130 void XHTMLStream::cr()
 131 {
 132         // tabs?
 133         os_ << from_ascii("\n");
 134 }
 135
 136
 137 void XHTMLStream::writeError(std::string const & s)
 138 {
 139         LYXERR0(s);
 140         os_ << from_utf8("<!-- Output Error: " + s + " -->");
 141 }
 142
 143
 144 bool XHTMLStream::closeFontTags()
 145 {
 146         if (tag_stack_.empty())
 147                 return true;
 148         // first, we close any open font tags we can close
 149         StartTag curtag = tag_stack_.back();
 150         while (html::isFontTag(curtag.tag_)) {
 151                 os_ << curtag.asEndTag();
 152                 tag_stack_.pop_back();
 153                 if (tag_stack_.empty())
 154                         // this probably shouldn't happen, since then the
 155                         // font tags weren't in any other tag. but that
 156                         // problem will likely be caught elsewhere.
 157                         return true;
 158                 curtag = tag_stack_.back();
 159         }
 160         // so we've hit a non-font tag. let's see if any of the
 161         // remaining tags are font tags.
 162         TagStack::const_iterator it = tag_stack_.begin();
 163         TagStack::const_iterator en = tag_stack_.end();
 164         bool noFontTags = true;
 165         for (; it != en; ++it) {
 166                 if (html::isFontTag(it->tag_)) {
 167                         writeError("Font tag `" + it->tag_ + "' still open in closeFontTags().");
 168                         noFontTags = false;
 169                 }
 170         }
 171         return noFontTags;
 172 }
 173
 174
 175 void XHTMLStream::clearTagDeque()
 176 {
 177         while (!pending_tags_.empty()) {
 178                 StartTag const & tag = pending_tags_.front();
 179                 // tabs?
 180                 os_ << tag.asTag();
 181                 tag_stack_.push_back(tag);
 182                 pending_tags_.pop_front();
 183         }
 184 }
 185
 186
 187 XHTMLStream & XHTMLStream::operator<<(docstring const & d)
 188 {
 189         clearTagDeque();
 190         os_ << html::htmlize(d);
 191         return *this;
 192 }
 193
 194
 195 XHTMLStream & XHTMLStream::operator<<(const char * s)
 196 {
 197         clearTagDeque();
 198         os_ << html::htmlize(from_ascii(s));
 199         return *this;
 200 }
 201
 202
 203 XHTMLStream & XHTMLStream::operator<<(char_type c)
 204 {
 205         clearTagDeque();
 206         os_ << html::escapeChar(c);
 207         return *this;
 208 }
 209
 210
 211 XHTMLStream & XHTMLStream::operator<<(StartTag const & tag)
 212 {
 213         if (tag.tag_.empty())
 214                 return *this;
 215         pending_tags_.push_back(tag);
 216         if (tag.keepempty_)
 217                 clearTagDeque();
 218         return *this;
 219 }
 220
 221
 222 XHTMLStream & XHTMLStream::operator<<(CompTag const & tag)
 223 {
 224         if (tag.tag_.empty())
 225                 return *this;
 226         clearTagDeque();
 227         // tabs?
 228         os_ << tag.asTag();
 229         return *this;
 230 }
 231
 232
 233 bool    XHTMLStream::isTagOpen(string const & stag)
 234 {
 235         TagStack::const_iterator sit = tag_stack_.begin();
 236         TagStack::const_iterator const sen = tag_stack_.end();
 237         for (; sit != sen; ++sit)
 238                 // we could check for the
 239                 if (sit->tag_ == stag)
 240                         return true;
 241         return false;
 242 }
 243
 244
 245 // this is complicated, because we want to make sure that
 246 // everything is properly nested. the code ought to make
 247 // sure of that, but we won't assert (yet) if we run into
 248 // a problem. we'll just output error messages and try our
 249 // best to make things work.
 250 XHTMLStream & XHTMLStream::operator<<(EndTag const & etag)
 251 {
 252         if (etag.tag_.empty())
 253                 return *this;
 254         // first make sure we're not closing an empty tag
 255         if (!pending_tags_.empty()) {
 256                 StartTag const & stag = pending_tags_.back();
 257                 if (etag.tag_ == stag.tag_)  {
 258                         // we have <tag></tag>, so we discard it and remove it
 259                         // from the pending_tags_.
 260                         pending_tags_.pop_back();
 261                         return *this;
 262                 }
 263                 // there is a pending tag that isn't the one we are trying
 264                 // to close.
 265                 // is this tag itself pending?
 266                 // non-const iterators because we may call erase().
 267                 TagDeque::iterator dit = pending_tags_.begin();
 268                 TagDeque::iterator const den = pending_tags_.end();
 269                 for (; dit != den; ++dit) {
 270                         if (dit->tag_ == etag.tag_) {
 271                                 // it was pending, so we just erase it
 272                                 writeError("Tried to close pending tag `" + etag.tag_
 273                                         + "' when other tags were pending. Tag discarded.");
 274                                 pending_tags_.erase(dit);
 275                                 return *this;
 276                         }
 277                 }
 278                 // so etag isn't itself pending. is it even open?
 279                 if (!isTagOpen(etag.tag_)) {
 280                         writeError("Tried to close `" + etag.tag_
 281                                  + "' when tag was not open. Tag discarded.");
 282                         return *this;
 283                 }
 284                 // ok, so etag is open.
 285                 // our strategy will be as below: we will do what we need to
 286                 // do to close this tag.
 287                 string estr = "Closing tag `" + etag.tag_
 288                         + "' when other tags are pending. Discarded pending tags:\n";
 289                 for (dit = pending_tags_.begin(); dit != den; ++dit)
 290                         estr += dit->tag_ + "\n";
 291                 writeError(estr);
 292                 // clear the pending tags...
 293                 pending_tags_.clear();
 294                 // ...and then just fall through.
 295         }
 296
 297         // is the tag we are closing the last one we opened?
 298         if (etag.tag_ == tag_stack_.back().tag_) {
 299                 // output it...
 300                 os_ << etag.asEndTag();
 301                 // ...and forget about it
 302                 tag_stack_.pop_back();
 303                 return *this;
 304         }
 305
 306         // we are trying to close a tag other than the one last opened.
 307         // let's first see if this particular tag is still open somehow.
 308         if (!isTagOpen(etag.tag_)) {
 309                 writeError("Tried to close `" + etag.tag_
 310                         + "' when tag was not open. Tag discarded.");
 311                 return *this;
 312         }
 313
 314         // so the tag was opened, but other tags have been opened since
 315         // and not yet closed.
 316         // if it's a font tag, though...
 317         if (html::isFontTag(etag.tag_)) {
 318                 // it won't be a problem if the other tags open since this one
 319                 // are also font tags.
 320                 TagStack::const_reverse_iterator rit = tag_stack_.rbegin();
 321                 TagStack::const_reverse_iterator ren = tag_stack_.rend();
 322                 for (; rit != ren; ++rit) {
 323                         if (rit->tag_ == etag.tag_)
 324                                 break;
 325                         if (!html::isFontTag(rit->tag_)) {
 326                                 // we'll just leave it and, presumably, have to close it later.
 327                                 writeError("Unable to close font tag `" + etag.tag_
 328                                         + "' due to open non-font tag `" + rit->tag_ + "'.");
 329                                 return *this;
 330                         }
 331                 }
 332
 333                 // so we have e.g.:
 334                 //    <em>this is <strong>bold
 335                 // and are being asked to closed em. we want:
 336                 //    <em>this is <strong>bold</strong></em><strong>
 337                 // first, we close the intervening tags...
 338                 StartTag curtag = tag_stack_.back();
 339                 // ...remembering them in a stack.
 340                 TagStack fontstack;
 341                 while (curtag.tag_ != etag.tag_) {
 342                         os_ << curtag.asEndTag();
 343                         fontstack.push_back(curtag);
 344                         tag_stack_.pop_back();
 345                         curtag = tag_stack_.back();
 346                 }
 347                 // now close our tag...
 348                 os_ << etag.asEndTag();
 349                 tag_stack_.pop_back();
 350
 351                 // ...and restore the other tags.
 352                 rit = fontstack.rbegin();
 353                 ren = fontstack.rend();
 354                 for (; rit != ren; ++rit)
 355                         pending_tags_.push_back(*rit);
 356                 return *this;
 357         }
 358
 359         // it wasn't a font tag.
 360         // so other tags were opened before this one and not properly closed.
 361         // so we'll close them, too. that may cause other issues later, but it
 362         // at least guarantees proper nesting.
 363         writeError("Closing tag `" + etag.tag_
 364                 + "' when other tags are open, namely:");
 365         StartTag curtag = tag_stack_.back();
 366         while (curtag.tag_ != etag.tag_) {
 367                 writeError(curtag.tag_);
 368                 os_ << curtag.asEndTag();
 369                 tag_stack_.pop_back();
 370                 curtag = tag_stack_.back();
 371         }
 372         // curtag is now the one we actually want.
 373         os_ << curtag.asEndTag();
 374         tag_stack_.pop_back();
 375
 376         return *this;
 377 }
 378
 379 // End code for XHTMLStream
 380
 381 namespace {
 382
 383 // convenience functions
 384
 385 inline void openTag(XHTMLStream & xs, Layout const & lay)
 386 {
 387         xs << StartTag(lay.htmltag(), lay.htmlattr());
 388 }
 389
 390
 391 inline void closeTag(XHTMLStream & xs, Layout const & lay)
 392 {
 393         xs << EndTag(lay.htmltag());
 394 }
 395
 396
 397 inline void openLabelTag(XHTMLStream & xs, Layout const & lay)
 398 {
 399         xs << StartTag(lay.htmllabeltag(), lay.htmllabelattr());
 400 }
 401
 402
 403 inline void closeLabelTag(XHTMLStream & xs, Layout const & lay)
 404 {
 405         xs << EndTag(lay.htmllabeltag());
 406 }
 407
 408
 409 inline void openItemTag(XHTMLStream & xs, Layout const & lay)
 410 {
 411         xs << StartTag(lay.htmlitemtag(), lay.htmlitemattr(), true);
 412 }
 413
 414
 415 inline void closeItemTag(XHTMLStream & xs, Layout const & lay)
 416 {
 417         xs << EndTag(lay.htmlitemtag());
 418 }
 419
 420 // end of convenience functions
 421
 422 ParagraphList::const_iterator searchParagraphHtml(
 423         ParagraphList::const_iterator p,
 424         ParagraphList::const_iterator const & pend)
 425 {
 426         for (++p; p != pend && p->layout().latextype == LATEX_PARAGRAPH; ++p)
 427                 ;
 428
 429         return p;
 430 }
 431
 432
 433 ParagraphList::const_iterator searchEnvironmentHtml(
 434                 ParagraphList::const_iterator const pstart,
 435                 ParagraphList::const_iterator const & pend)
 436 {
 437         ParagraphList::const_iterator p = pstart;
 438         Layout const & bstyle = p->layout();
 439         size_t const depth = p->params().depth();
 440         for (++p; p != pend; ++p) {
 441                 Layout const & style = p->layout();
 442                 // It shouldn't happen that e.g. a section command occurs inside
 443                 // a quotation environment, at a higher depth, but as of 6/2009,
 444                 // it can happen. We pretend that it's just at lowest depth.
 445                 if (style.latextype == LATEX_COMMAND)
 446                         return p;
 447                 // If depth is down, we're done
 448                 if (p->params().depth() < depth)
 449                         return p;
 450                 // If depth is up, we're not done
 451                 if (p->params().depth() > depth)
 452                         continue;
 453                 // Now we know we are at the same depth
 454                 if (style.latextype == LATEX_PARAGRAPH
 455                     || style.latexname() != bstyle.latexname())
 456                         return p;
 457         }
 458         return pend;
 459 }
 460
 461
 462 ParagraphList::const_iterator makeParagraphs(Buffer const & buf,
 463                                             XHTMLStream & xs,
 464                                             OutputParams const & runparams,
 465                                             Text const & text,
 466                                             ParagraphList::const_iterator const & pbegin,
 467                                             ParagraphList::const_iterator const & pend)
 468 {
 469         ParagraphList::const_iterator const begin = text.paragraphs().begin();
 470         ParagraphList::const_iterator par = pbegin;
 471         for (; par != pend; ++par) {
 472                 Layout const & lay = par->layout();
 473                 if (!lay.counter.empty())
 474                         buf.params().documentClass().counters().step(lay.counter);
 475                 // FIXME We should see if there's a label to be output and
 476                 // do something with it.
 477                 if (par != pbegin)
 478                         xs.cr();
 479
 480                 // If we are already in a paragraph, and this is the first one, then we
 481                 // do not want to open the paragraph tag.
 482                 // we also do not want to open it if the current layout does not permit
 483                 // multiple paragraphs.
 484                 bool const opened = runparams.html_make_pars &&
 485                         (par != pbegin || !runparams.html_in_par);
 486                 if (opened)
 487                         openTag(xs, lay);
 488                 docstring const deferred =
 489                         par->simpleLyXHTMLOnePar(buf, xs, runparams, text.outerFont(distance(begin, par)));
 490
 491                 // We want to issue the closing tag if either:
 492                 //   (i)  We opened it, and either html_in_par is false,
 493                 //        or we're not in the last paragraph, anyway.
 494                 //   (ii) We didn't open it and html_in_par is true,
 495                 //        but we are in the first par, and there is a next par.
 496                 ParagraphList::const_iterator nextpar = par;
 497                 nextpar++;
 498                 bool const needclose =
 499                         (opened && (!runparams.html_in_par || nextpar != pend))
 500                         || (!opened && runparams.html_in_par && par == pbegin && nextpar != pend);
 501                 if (needclose) {
 502                         closeTag(xs, lay);
 503                         xs.cr();
 504                 }
 505                 if (!deferred.empty()) {
 506                         xs << deferred;
 507                         xs.cr();
 508                 }
 509         }
 510         return pend;
 511 }
 512
 513
 514 ParagraphList::const_iterator makeBibliography(Buffer const & buf,
 515                                 XHTMLStream & xs,
 516                                 OutputParams const & runparams,
 517                                 Text const & text,
 518                                 ParagraphList::const_iterator const & pbegin,
 519                                 ParagraphList::const_iterator const & pend)
 520 {
 521         xs << StartTag("h2", "class='bibliography'");
 522         xs << pbegin->layout().labelstring(false);
 523         xs << EndTag("h2");
 524         xs.cr();
 525         xs << StartTag("div", "class='bibliography'");
 526         xs.cr();
 527         makeParagraphs(buf, xs, runparams, text, pbegin, pend);
 528         xs << EndTag("div");
 529         return pend;
 530 }
 531
 532
 533 bool isNormalEnv(Layout const & lay)
 534 {
 535         return lay.latextype == LATEX_ENVIRONMENT;
 536 }
 537
 538
 539 ParagraphList::const_iterator makeEnvironmentHtml(Buffer const & buf,
 540                                               XHTMLStream & xs,
 541                                               OutputParams const & runparams,
 542                                               Text const & text,
 543                                               ParagraphList::const_iterator const & pbegin,
 544                                               ParagraphList::const_iterator const & pend)
 545 {
 546         ParagraphList::const_iterator const begin = text.paragraphs().begin();
 547         ParagraphList::const_iterator par = pbegin;
 548         Layout const & bstyle = par->layout();
 549         depth_type const origdepth = pbegin->params().depth();
 550
 551         // open tag for this environment
 552         openTag(xs, bstyle);
 553         xs.cr();
 554
 555         // we will on occasion need to remember a layout from before.
 556         Layout const * lastlay = 0;
 557
 558         while (par != pend) {
 559                 Layout const & style = par->layout();
 560                 // the counter only gets stepped if we're in some kind of list,
 561                 // or if it's the first time through.
 562                 // note that enum, etc, are handled automatically.
 563                 // FIXME There may be a bug here about user defined enumeration
 564                 // types. If so, then we'll need to take the counter and add "i",
 565                 // "ii", etc, as with enum.
 566                 if (!style.counter.empty() &&
 567                     (par == pbegin || !isNormalEnv(style))
 568                     && style.latextype == LATEX_LIST_ENVIRONMENT)
 569                         buf.params().documentClass().counters().step(style.counter);
 570                 ParagraphList::const_iterator send;
 571                 // this will be positive, if we want to skip the initial word
 572                 // (if it's been taken for the label).
 573                 pos_type sep = 0;
 574
 575                 switch (style.latextype) {
 576                 case LATEX_ENVIRONMENT:
 577                 case LATEX_LIST_ENVIRONMENT:
 578                 case LATEX_ITEM_ENVIRONMENT: {
 579                         // There are two possiblities in this case.
 580                         // One is that we are still in the environment in which we
 581                         // started---which we will be if the depth is the same.
 582                         if (par->params().depth() == origdepth) {
 583                                 LASSERT(bstyle == style, /* */);
 584                                 if (lastlay != 0) {
 585                                         closeItemTag(xs, *lastlay);
 586                                         lastlay = 0;
 587                                 }
 588                                 bool const labelfirst = style.htmllabelfirst();
 589                                 if (isNormalEnv(style)) {
 590                                         // in this case, we print the label only for the first
 591                                         // paragraph (as in a theorem).
 592                                         openItemTag(xs, style);
 593                                         if (par == pbegin && style.htmllabeltag() != "NONE") {
 594                                                 docstring const lbl =
 595                                                                 pbegin->expandLabel(style, buf.params(), false);
 596                                                 if (!lbl.empty()) {
 597                                                         openLabelTag(xs, style);
 598                                                         xs << lbl;
 599                                                         closeLabelTag(xs, style);
 600                                                 }
 601                                                 xs.cr();
 602                                         }
 603                                 }       else { // some kind of list
 604                                         if (!labelfirst)
 605                                                 openItemTag(xs, style);
 606                                         if (style.labeltype == LABEL_MANUAL
 607                                             && style.htmllabeltag() != "NONE") {
 608                                                 openLabelTag(xs, style);
 609 //                                              sep = par->firstWordLyXHTML(xs, runparams);
 610                                                 closeLabelTag(xs, style);
 611                                                 xs.cr();
 612                                         }
 613                                         else if (style.labeltype != LABEL_NO_LABEL
 614                                                  && style.htmllabeltag() != "NONE") {
 615                                                 openLabelTag(xs, style);
 616                                                 xs << par->expandLabel(style, buf.params(), false);
 617                                                 closeLabelTag(xs, style);
 618                                                 xs.cr();
 619                                         }
 620                                         if (labelfirst)
 621                                                 openItemTag(xs, style);
 622                                 }
 623                                 par->simpleLyXHTMLOnePar(buf, xs, runparams,
 624                                         text.outerFont(distance(begin, par)), sep);
 625                                 ++par;
 626                                 // We may not want to close the tag yet, in particular,
 627                                 // if we're not at the end...
 628                                 if (par != pend
 629                                         //  and are doing items...
 630                                          && !isNormalEnv(style)
 631                                          // and if the depth has changed...
 632                                          && par->params().depth() != origdepth) {
 633                                          // then we'll save this layout for later, and close it when
 634                                          // we get another item.
 635                                         lastlay = &style;
 636                                 } else
 637                                         closeItemTag(xs, style);
 638                                 xs.cr();
 639                         }
 640                         // The other possibility is that the depth has increased, in which
 641                         // case we need to recurse.
 642                         else {
 643                                 send = searchEnvironmentHtml(par, pend);
 644                                 par = makeEnvironmentHtml(buf, xs, runparams, text, par, send);
 645                         }
 646                         break;
 647                 }
 648                 case LATEX_PARAGRAPH:
 649                         send = searchParagraphHtml(par, pend);
 650                         par = makeParagraphs(buf, xs, runparams, text, par, send);
 651                         break;
 652                 // Shouldn't happen
 653                 case LATEX_BIB_ENVIRONMENT:
 654                         send = par;
 655                         ++send;
 656                         par = makeParagraphs(buf, xs, runparams, text, par, send);
 657                         break;
 658                 // Shouldn't happen
 659                 case LATEX_COMMAND:
 660                         ++par;
 661                         break;
 662                 }
 663         }
 664
 665         if (lastlay != 0)
 666                 closeItemTag(xs, *lastlay);
 667         closeTag(xs, bstyle);
 668         xs.cr();
 669         return pend;
 670 }
 671
 672
 673 void makeCommand(Buffer const & buf,
 674                                           XHTMLStream & xs,
 675                                           OutputParams const & runparams,
 676                                           Text const & text,
 677                                           ParagraphList::const_iterator const & pbegin)
 678 {
 679         Layout const & style = pbegin->layout();
 680         if (!style.counter.empty())
 681                 buf.params().documentClass().counters().step(style.counter);
 682
 683         openTag(xs, style);
 684
 685         // Label around sectioning number:
 686         // FIXME Probably need to account for LABEL_MANUAL
 687         if (style.labeltype != LABEL_NO_LABEL) {
 688                 openLabelTag(xs, style);
 689                 xs << pbegin->expandLabel(style, buf.params(), false);
 690                 closeLabelTag(xs, style);
 691                 // Otherwise the label might run together with the text
 692                 xs << from_ascii(" ");
 693         }
 694
 695         ParagraphList::const_iterator const begin = text.paragraphs().begin();
 696         pbegin->simpleLyXHTMLOnePar(buf, xs, runparams,
 697                         text.outerFont(distance(begin, pbegin)));
 698         closeTag(xs, style);
 699         xs.cr();
 700 }
 701
 702 } // end anonymous namespace
 703
 704
 705 void xhtmlParagraphs(Text const & text,
 706                        Buffer const & buf,
 707                        XHTMLStream & xs,
 708                        OutputParams const & runparams)
 709 {
 710         ParagraphList const & paragraphs = text.paragraphs();
 711         ParagraphList::const_iterator par = paragraphs.begin();
 712         ParagraphList::const_iterator pend = paragraphs.end();
 713
 714         OutputParams ourparams = runparams;
 715         while (par != pend) {
 716                 Layout const & style = par->layout();
 717                 ParagraphList::const_iterator lastpar = par;
 718                 ParagraphList::const_iterator send;
 719
 720                 switch (style.latextype) {
 721                 case LATEX_COMMAND: {
 722                         // The files with which we are working never have more than
 723                         // one paragraph in a command structure.
 724                         // FIXME
 725                         // if (ourparams.html_in_par)
 726                         //   fix it so we don't get sections inside standard, e.g.
 727                         // note that we may then need to make runparams not const, so we
 728                         // can communicate that back.
 729                         // FIXME Maybe this fix should be in the routines themselves, in case
 730                         // they are called from elsewhere.
 731                         makeCommand(buf, xs, ourparams, text, par);
 732                         ++par;
 733                         break;
 734                 }
 735                 case LATEX_ENVIRONMENT:
 736                 case LATEX_LIST_ENVIRONMENT:
 737                 case LATEX_ITEM_ENVIRONMENT: {
 738                         // FIXME Same fix here.
 739                         send = searchEnvironmentHtml(par, pend);
 740                         par = makeEnvironmentHtml(buf, xs, ourparams, text, par, send);
 741                         break;
 742                 }
 743                 case LATEX_BIB_ENVIRONMENT: {
 744                         // FIXME Same fix here.
 745                         send = searchEnvironmentHtml(par, pend);
 746                         par = makeBibliography(buf, xs, ourparams, text, par, send);
 747                         break;
 748                 }
 749                 case LATEX_PARAGRAPH:
 750                         send = searchParagraphHtml(par, pend);
 751                         par = makeParagraphs(buf, xs, ourparams, text, par, send);
 752                         break;
 753                 }
 754                 // FIXME??
 755                 // makeEnvironment may process more than one paragraphs and bypass pend
 756                 if (distance(lastpar, par) >= distance(lastpar, pend))
 757                         break;
 758         }
 759 }
 760
 761
 762 } // namespace lyx