src/layout.C

   1 /* This file is part of
   2  * ======================================================
   3  *
   4  *           LyX, The Document Processor
   5  *
   6  *          Copyright 1995 Matthias Ettrich
   7  *          Copyright 1995-2001 The LyX Team.
   8  *
   9  * ======================================================
  10  */
  11
  12 #include <config.h>
  13
  14 #ifdef __GNUG__
  15 #pragma implementation
  16 #endif
  17
  18 #include <algorithm>
  19
  20 #include "layout.h"
  21 #include "lyxlex.h"
  22 #include "support/filetools.h"
  23 #include "lyx_gui_misc.h"
  24 #include "debug.h"
  25 #include "gettext.h"
  26 #include "support/LAssert.h"
  27 #include "support/lyxfunctional.h"
  28
  29 using std::pair;
  30 using std::make_pair;
  31 using std::sort;
  32 using std::endl;
  33 using std::find_if;
  34 using std::remove_if;
  35
  36 // Global variable: textclass table.
  37 LyXTextClassList textclasslist;
  38
  39
  40 // Reads the style files
  41 void LyXSetStyle()
  42 {
  43         lyxerr[Debug::TCLASS] << "LyXSetStyle: parsing configuration...\n";
  44
  45         if (!textclasslist.Read()) {
  46                 lyxerr[Debug::TCLASS] << "LyXSetStyle: an error occured "
  47                         "during parsing.\n             Exiting." << endl;
  48                 exit(1);
  49         }
  50
  51         lyxerr[Debug::TCLASS] << "LyXSetStyle: configuration parsed." << endl;
  52 }
  53
  54
  55 //  The order of the LayoutTags enum is no more important. [asierra300396]
  56 // Tags indexes.
  57 enum LayoutTags {
  58         LT_ALIGN = 1,
  59         LT_ALIGNPOSSIBLE,
  60         LT_MARGIN,
  61         LT_BOTTOMSEP,
  62         LT_COPYSTYLE,
  63         LT_OBSOLETEDBY,
  64         //LT_EMPTY,
  65         LT_END,
  66         //LT_ENVIRONMENT_DEFAULT,
  67         //LT_FANCYHDR,
  68         LT_FILL_BOTTOM,
  69         LT_FILL_TOP,
  70         //LT_FIRST_COUNTER,
  71         LT_FONT,
  72         LT_FREE_SPACING,
  73         LT_PASS_THRU,
  74         //LT_HEADINGS,
  75         LT_ITEMSEP,
  76         LT_KEEPEMPTY,
  77         LT_LABEL_BOTTOMSEP,
  78         LT_LABELFONT,
  79         LT_TEXTFONT,
  80         LT_LABELINDENT,
  81         LT_LABELSEP,
  82         LT_LABELSTRING,
  83         LT_LABELSTRING_APPENDIX,
  84         LT_LABELTYPE,
  85         LT_ENDLABELSTRING,
  86         LT_ENDLABELTYPE,
  87         LT_LATEXNAME,
  88         LT_LATEXPARAM,
  89         LT_LATEXTYPE,
  90         LT_LEFTMARGIN,
  91         LT_NEED_PROTECT,
  92         LT_NEWLINE,
  93         LT_NEXTNOINDENT,
  94         LT_PARINDENT,
  95         LT_PARSEP,
  96         LT_PARSKIP,
  97         //LT_PLAIN,
  98         LT_PREAMBLE,
  99         LT_RIGHTMARGIN,
 100         LT_SPACING,
 101         LT_TOPSEP,
 102         LT_INTITLE
 103 };
 104
 105
 106 /////////////////////
 107
 108 // Constructor for layout
 109 LyXLayout::LyXLayout ()
 110 {
 111         margintype = MARGIN_STATIC;
 112         latextype = LATEX_PARAGRAPH;
 113         intitle = false;
 114         needprotect = false;
 115         keepempty = false;
 116         font = LyXFont(LyXFont::ALL_INHERIT);
 117         labelfont = LyXFont(LyXFont::ALL_INHERIT);
 118         resfont = LyXFont(LyXFont::ALL_SANE);
 119         reslabelfont = LyXFont(LyXFont::ALL_SANE);
 120         nextnoindent = false;
 121         parskip = 0.0;
 122         itemsep = 0;
 123         topsep = 0.0;
 124         bottomsep = 0.0;
 125         labelbottomsep = 0.0;
 126         parsep = 0;
 127         align = LYX_ALIGN_BLOCK;
 128         alignpossible = LYX_ALIGN_BLOCK;
 129         labeltype = LABEL_NO_LABEL;
 130         endlabeltype = END_LABEL_NO_LABEL;
 131         // Should or should not. That is the question.
 132         // spacing.set(Spacing::OneHalf);
 133         fill_top = false;
 134         fill_bottom = false;
 135         newline_allowed = true;
 136         free_spacing = false;
 137         pass_thru = false;
 138 }
 139
 140
 141 // Reads a layout definition from file
 142 bool LyXLayout::Read (LyXLex & lexrc, LyXTextClass const & tclass)
 143 {
 144         // This table is sorted alphabetically [asierra 30March96]
 145         keyword_item layoutTags[] = {
 146                 { "align",                      LT_ALIGN },
 147                 { "alignpossible",              LT_ALIGNPOSSIBLE },
 148                 { "bottomsep",                  LT_BOTTOMSEP },
 149                 { "copystyle",                  LT_COPYSTYLE },
 150                 { "end",                        LT_END },
 151                 { "endlabelstring",             LT_ENDLABELSTRING },
 152                 { "endlabeltype",               LT_ENDLABELTYPE },
 153                 { "fill_bottom",                LT_FILL_BOTTOM },
 154                 { "fill_top",                   LT_FILL_TOP },
 155                 { "font",                       LT_FONT },
 156                 { "freespacing",                LT_FREE_SPACING },
 157                 { "intitle",                    LT_INTITLE },
 158                 { "itemsep",                    LT_ITEMSEP },
 159                 { "keepempty",                  LT_KEEPEMPTY },
 160                 { "labelbottomsep",             LT_LABEL_BOTTOMSEP },
 161                 { "labelfont",                  LT_LABELFONT },
 162                 { "labelindent",                LT_LABELINDENT },
 163                 { "labelsep",                   LT_LABELSEP },
 164                 { "labelstring",                LT_LABELSTRING },
 165                 { "labelstringappendix",        LT_LABELSTRING_APPENDIX },
 166                 { "labeltype",                  LT_LABELTYPE },
 167                 { "latexname",                  LT_LATEXNAME },
 168                 { "latexparam",                 LT_LATEXPARAM },
 169                 { "latextype",                  LT_LATEXTYPE },
 170                 { "leftmargin",                 LT_LEFTMARGIN },
 171                 { "margin",                     LT_MARGIN },
 172                 { "needprotect",                LT_NEED_PROTECT },
 173                 { "newline",                    LT_NEWLINE },
 174                 { "nextnoindent",               LT_NEXTNOINDENT },
 175                 { "obsoletedby",                LT_OBSOLETEDBY },
 176                 { "parindent",                  LT_PARINDENT },
 177                 { "parsep",                     LT_PARSEP },
 178                 { "parskip",                    LT_PARSKIP },
 179                 { "passthru",                   LT_PASS_THRU },
 180                 { "preamble",                   LT_PREAMBLE },
 181                 { "rightmargin",                LT_RIGHTMARGIN },
 182                 { "spacing",                    LT_SPACING },
 183                 { "textfont",                   LT_TEXTFONT },
 184                 { "topsep",                     LT_TOPSEP }
 185         };
 186
 187         bool error = false;
 188         bool finished = false;
 189         lexrc.pushTable(layoutTags, LT_INTITLE);
 190         // parse style section
 191         while (!finished && lexrc.IsOK() && !error) {
 192                 int le = lexrc.lex();
 193                 // See comment in lyxrc.C.
 194                 switch (le) {
 195                 case LyXLex::LEX_FEOF:
 196                         continue;
 197
 198                 case LyXLex::LEX_UNDEF:         // parse error
 199                         lexrc.printError("Unknown layout tag `$$Token'");
 200                         error = true;
 201                         continue;
 202                 default: break;
 203                 }
 204                 switch (static_cast<LayoutTags>(le)) {
 205                 case LT_END:            // end of structure
 206                         finished = true;
 207                         break;
 208
 209                 case LT_COPYSTYLE:     // initialize with a known style
 210                         if (lexrc.next()) {
 211                                 if (tclass.hasLayout(lexrc.GetString())) {
 212                                         string tmpname = name_;
 213                                         this->operator= (tclass.GetLayout(lexrc.GetString()));
 214                                         name_ = tmpname;
 215                                 } else {
 216                                         lexrc.printError("Cannot copy known "
 217                                                          "style `$$Token'");
 218                                 }
 219                         }
 220                         break;
 221
 222                 case LT_OBSOLETEDBY:     // replace with a known style
 223                         if (lexrc.next()) {
 224                                 if (tclass.hasLayout(lexrc.GetString())) {
 225                                         string tmpname = name_;
 226                                         this->operator= (tclass.GetLayout(lexrc.GetString()));
 227                                         name_ = tmpname;
 228                                         if (obsoleted_by().empty())
 229                                           obsoleted_by_ = lexrc.GetString();
 230                                 } else {
 231                                         lexrc.printError("Cannot replace with"
 232                                                          " unknown style "
 233                                                          "`$$Token'");
 234                                 }
 235                         }
 236                         break;
 237
 238                 case LT_MARGIN:         // Margin style definition.
 239                         readMargin(lexrc);
 240                         break;
 241
 242                 case LT_LATEXTYPE:      // Latex style definition.
 243                         readLatexType(lexrc);
 244                         break;
 245
 246                 case LT_INTITLE:
 247                         intitle = lexrc.next() && lexrc.GetInteger();
 248                         break;
 249
 250                 case LT_NEED_PROTECT:
 251                         needprotect = lexrc.next() && lexrc.GetInteger();
 252                         break;
 253
 254                 case LT_KEEPEMPTY:
 255                         keepempty = lexrc.next() && lexrc.GetInteger();
 256                         break;
 257
 258                 case LT_FONT:
 259                         font.lyxRead(lexrc);
 260                         labelfont= font;
 261                         break;
 262
 263                 case LT_TEXTFONT:
 264                         font.lyxRead(lexrc);
 265                         break;
 266
 267                 case LT_LABELFONT:
 268                         labelfont.lyxRead(lexrc);
 269                         break;
 270
 271                 case LT_NEXTNOINDENT:   // Indent next paragraph?
 272                         if (lexrc.next() && lexrc.GetInteger())
 273                                 nextnoindent = true;
 274                         else
 275                                 nextnoindent = false;
 276                         break;
 277
 278                 case LT_LATEXNAME:
 279                         if (lexrc.next())
 280                                 latexname_ = lexrc.GetString();
 281                         break;
 282
 283                 case LT_LATEXPARAM:
 284                         if (lexrc.next())
 285                                 latexparam_ = lexrc.GetString();
 286                         break;
 287
 288                 case LT_PREAMBLE:
 289                         preamble_ = lexrc.getLongString("EndPreamble");
 290                         break;
 291
 292                 case LT_LABELTYPE:
 293                         readLabelType(lexrc);
 294                         break;
 295
 296                 case LT_ENDLABELTYPE:
 297                         readEndLabelType(lexrc);
 298                         break;
 299
 300                 case LT_LEFTMARGIN:     // left margin type
 301                         if (lexrc.next())
 302                                 leftmargin = lexrc.GetString();
 303                         break;
 304
 305                 case LT_RIGHTMARGIN:    // right margin type
 306                         if (lexrc.next())
 307                                 rightmargin = lexrc.GetString();
 308                         break;
 309
 310                 case LT_LABELINDENT:    // label indenting flag
 311                         if (lexrc.next())
 312                                 labelindent = lexrc.GetString();
 313                         break;
 314
 315                 case LT_PARINDENT:      // paragraph indent. flag
 316                         if (lexrc.next())
 317                                 parindent = lexrc.GetString();
 318                         break;
 319
 320                 case LT_PARSKIP:        // paragraph skip size
 321                         if (lexrc.next())
 322                                 parskip = lexrc.GetFloat();
 323                         break;
 324
 325                 case LT_ITEMSEP:        // item separation size
 326                         if (lexrc.next())
 327                                 itemsep = lexrc.GetFloat();
 328                         break;
 329
 330                 case LT_TOPSEP:         // top separation size
 331                         if (lexrc.next())
 332                                 topsep = lexrc.GetFloat();
 333                         break;
 334
 335                 case LT_BOTTOMSEP:      // bottom separation size
 336                         if (lexrc.next())
 337                                 bottomsep = lexrc.GetFloat();
 338                         break;
 339
 340                 case LT_LABEL_BOTTOMSEP: // label bottom separation size
 341                         if (lexrc.next())
 342                                 labelbottomsep = lexrc.GetFloat();
 343                         break;
 344
 345                 case LT_LABELSEP:       // label separator
 346                         if (lexrc.next()) {
 347                                 labelsep = subst(lexrc.GetString(), 'x', ' ');
 348                         }
 349                         break;
 350
 351                 case LT_PARSEP:         // par. separation size
 352                         if (lexrc.next())
 353                                 parsep = lexrc.GetFloat();
 354                         break;
 355
 356                 case LT_FILL_TOP:       // fill top flag
 357                         if (lexrc.next())
 358                                 fill_top = lexrc.GetInteger();
 359                         break;
 360
 361                 case LT_FILL_BOTTOM:    // fill bottom flag
 362                         if (lexrc.next())
 363                                 fill_bottom = lexrc.GetInteger();
 364                         break;
 365
 366                 case LT_NEWLINE:        // newlines allowed?
 367                         if (lexrc.next())
 368                                 newline_allowed = lexrc.GetInteger();
 369                         break;
 370
 371                 case LT_ALIGN:          // paragraph align
 372                         readAlign(lexrc);
 373                         break;
 374                 case LT_ALIGNPOSSIBLE:  // paragraph allowed align
 375                         readAlignPossible(lexrc);
 376                         break;
 377
 378                 case LT_LABELSTRING:    // label string definition
 379                         if (lexrc.next())
 380                                 labelstring_ = lexrc.GetString();
 381                         break;
 382
 383                 case LT_ENDLABELSTRING: // endlabel string definition
 384                         if (lexrc.next())
 385                                 endlabelstring_ = lexrc.GetString();
 386                         break;
 387
 388                 case LT_LABELSTRING_APPENDIX: // label string appendix definition
 389                         if (lexrc.next())
 390                                 labelstring_appendix_ = lexrc.GetString();
 391                         break;
 392
 393                 case LT_FREE_SPACING:   // Allow for free spacing.
 394                         if (lexrc.next())
 395                                 free_spacing = lexrc.GetInteger();
 396                         break;
 397
 398                 case LT_PASS_THRU:      // Allow for pass thru.
 399                         if (lexrc.next())
 400                                 pass_thru = lexrc.GetInteger();
 401                         break;
 402
 403                 case LT_SPACING: // setspace.sty
 404                         readSpacing(lexrc);
 405                         break;
 406                 }
 407         }
 408         lexrc.popTable();
 409         return error;
 410 }
 411
 412
 413 enum AlignTags {
 414         AT_BLOCK = 1,
 415         AT_LEFT,
 416         AT_RIGHT,
 417         AT_CENTER,
 418         AT_LAYOUT
 419 };
 420
 421
 422 void LyXLayout::readAlign(LyXLex & lexrc)
 423 {
 424         keyword_item alignTags[] = {
 425                 { "block",  AT_BLOCK },
 426                 { "center", AT_CENTER },
 427                 { "layout", AT_LAYOUT },
 428                 { "left",   AT_LEFT },
 429                 { "right",  AT_RIGHT }
 430         };
 431
 432         pushpophelper pph(lexrc, alignTags, AT_LAYOUT);
 433         int le = lexrc.lex();
 434         switch (le) {
 435         case LyXLex::LEX_UNDEF:
 436                 lexrc.printError("Unknown alignment `$$Token'");
 437                 return;
 438         default: break;
 439         };
 440         switch (static_cast<AlignTags>(le)) {
 441         case AT_BLOCK:
 442                 align = LYX_ALIGN_BLOCK;
 443                 break;
 444         case AT_LEFT:
 445                 align = LYX_ALIGN_LEFT;
 446                 break;
 447         case AT_RIGHT:
 448                 align = LYX_ALIGN_RIGHT;
 449                 break;
 450         case AT_CENTER:
 451                 align = LYX_ALIGN_CENTER;
 452                 break;
 453         case AT_LAYOUT:
 454                 align = LYX_ALIGN_LAYOUT;
 455                 break;
 456         }
 457 }
 458
 459
 460 void LyXLayout::readAlignPossible(LyXLex & lexrc)
 461 {
 462         keyword_item alignTags[] = {
 463                 { "block",  AT_BLOCK },
 464                 { "center", AT_CENTER },
 465                 { "layout", AT_LAYOUT },
 466                 { "left",   AT_LEFT },
 467                 { "right",  AT_RIGHT }
 468         };
 469
 470         lexrc.pushTable(alignTags, AT_LAYOUT);
 471         alignpossible = LYX_ALIGN_NONE;
 472         int lineno = lexrc.GetLineNo();
 473         do {
 474                 int le = lexrc.lex();
 475                 switch (le) {
 476                 case LyXLex::LEX_UNDEF:
 477                         lexrc.printError("Unknown alignment `$$Token'");
 478                         continue;
 479                 default: break;
 480                 };
 481                 switch (static_cast<AlignTags>(le)) {
 482                 case AT_BLOCK:
 483                         alignpossible |= LYX_ALIGN_BLOCK;
 484                         break;
 485                 case AT_LEFT:
 486                         alignpossible |= LYX_ALIGN_LEFT;
 487                         break;
 488                 case AT_RIGHT:
 489                         alignpossible |= LYX_ALIGN_RIGHT;
 490                         break;
 491                 case AT_CENTER:
 492                         alignpossible |= LYX_ALIGN_CENTER;
 493                         break;
 494                 case AT_LAYOUT:
 495                         alignpossible |= LYX_ALIGN_LAYOUT;
 496                         break;
 497                 }
 498         } while (lineno == lexrc.GetLineNo());
 499         lexrc.popTable();
 500 }
 501
 502
 503 enum LabelTypeTags {
 504         LA_NO_LABEL = 1,
 505         LA_MANUAL,
 506         LA_TOP_ENVIRONMENT,
 507         LA_CENTERED_TOP_ENVIRONMENT,
 508         LA_STATIC,
 509         LA_SENSITIVE,
 510         LA_COUNTER_CHAPTER,
 511         LA_COUNTER_SECTION,
 512         LA_COUNTER_SUBSECTION,
 513         LA_COUNTER_SUBSUBSECTION,
 514         LA_COUNTER_PARAGRAPH,
 515         LA_COUNTER_SUBPARAGRAPH,
 516         LA_COUNTER_ENUMI,
 517         LA_COUNTER_ENUMII,
 518         LA_COUNTER_ENUMIII,
 519         LA_COUNTER_ENUMIV,
 520         LA_BIBLIO
 521 };
 522
 523
 524 void LyXLayout::readLabelType(LyXLex & lexrc)
 525 {
 526         keyword_item labelTypeTags[] = {
 527         { "bibliography",             LA_BIBLIO },
 528         { "centered_top_environment", LA_CENTERED_TOP_ENVIRONMENT },
 529         { "counter_chapter",          LA_COUNTER_CHAPTER },
 530         { "counter_enumi",            LA_COUNTER_ENUMI },
 531         { "counter_enumii",           LA_COUNTER_ENUMII },
 532         { "counter_enumiii",          LA_COUNTER_ENUMIII },
 533         { "counter_enumiv",           LA_COUNTER_ENUMIV },
 534         { "counter_paragraph",        LA_COUNTER_PARAGRAPH },
 535         { "counter_section",          LA_COUNTER_SECTION },
 536         { "counter_subparagraph",     LA_COUNTER_SUBPARAGRAPH },
 537         { "counter_subsection",       LA_COUNTER_SUBSECTION },
 538         { "counter_subsubsection",    LA_COUNTER_SUBSUBSECTION },
 539         { "manual",                   LA_MANUAL },
 540         { "no_label",                 LA_NO_LABEL },
 541         { "sensitive",                LA_SENSITIVE },
 542         { "static",                   LA_STATIC },
 543         { "top_environment",          LA_TOP_ENVIRONMENT }
 544 };
 545
 546         pushpophelper pph(lexrc, labelTypeTags, LA_BIBLIO);
 547         int le = lexrc.lex();
 548         switch (le) {
 549         case LyXLex::LEX_UNDEF:
 550                 lexrc.printError("Unknown labeltype tag `$$Token'");
 551                 return;
 552         default: break;
 553         }
 554         switch (static_cast<LabelTypeTags>(le)) {
 555         case LA_NO_LABEL:
 556                 labeltype = LABEL_NO_LABEL;
 557                 break;
 558         case LA_MANUAL:
 559                 labeltype = LABEL_MANUAL;
 560                 break;
 561         case LA_TOP_ENVIRONMENT:
 562                 labeltype = LABEL_TOP_ENVIRONMENT;
 563                 break;
 564         case LA_CENTERED_TOP_ENVIRONMENT:
 565                 labeltype = LABEL_CENTERED_TOP_ENVIRONMENT;
 566                 break;
 567         case LA_STATIC:
 568                 labeltype = LABEL_STATIC;
 569                 break;
 570         case LA_SENSITIVE:
 571                 labeltype = LABEL_SENSITIVE;
 572                 break;
 573         case LA_COUNTER_CHAPTER:
 574                 labeltype = LABEL_COUNTER_CHAPTER;
 575                 break;
 576         case LA_COUNTER_SECTION:
 577                 labeltype = LABEL_COUNTER_SECTION;
 578                 break;
 579         case LA_COUNTER_SUBSECTION:
 580                 labeltype = LABEL_COUNTER_SUBSECTION;
 581                 break;
 582         case LA_COUNTER_SUBSUBSECTION:
 583                 labeltype = LABEL_COUNTER_SUBSUBSECTION;
 584                 break;
 585         case LA_COUNTER_PARAGRAPH:
 586                 labeltype = LABEL_COUNTER_PARAGRAPH;
 587                 break;
 588         case LA_COUNTER_SUBPARAGRAPH:
 589                 labeltype = LABEL_COUNTER_SUBPARAGRAPH;
 590                 break;
 591         case LA_COUNTER_ENUMI:
 592                 labeltype = LABEL_COUNTER_ENUMI;
 593                 break;
 594         case LA_COUNTER_ENUMII:
 595                 labeltype = LABEL_COUNTER_ENUMII;
 596                 break;
 597         case LA_COUNTER_ENUMIII:
 598                 labeltype = LABEL_COUNTER_ENUMIII;
 599                 break;
 600         case LA_COUNTER_ENUMIV:
 601                 labeltype = LABEL_COUNTER_ENUMIV;
 602                 break;
 603         case LA_BIBLIO:
 604                 labeltype = LABEL_BIBLIO;
 605                 break;
 606         }
 607 }
 608
 609
 610 namespace {
 611
 612 keyword_item endlabelTypeTags[] = {
 613         { "box",        END_LABEL_BOX },
 614         { "filled_box", END_LABEL_FILLED_BOX },
 615         { "no_label",   END_LABEL_NO_LABEL },
 616         { "static",     END_LABEL_STATIC }
 617 };
 618
 619 } // namespace anon
 620
 621
 622 void LyXLayout::readEndLabelType(LyXLex & lexrc)
 623 {
 624         pushpophelper pph(lexrc, endlabelTypeTags,
 625                           END_LABEL_ENUM_LAST-END_LABEL_ENUM_FIRST+1);
 626         int le = lexrc.lex();
 627         switch (le) {
 628         case LyXLex::LEX_UNDEF:
 629                 lexrc.printError("Unknown labeltype tag `$$Token'");
 630                 break;
 631         case END_LABEL_STATIC:
 632         case END_LABEL_BOX:
 633         case END_LABEL_FILLED_BOX:
 634         case END_LABEL_NO_LABEL:
 635                 endlabeltype = static_cast<LYX_END_LABEL_TYPES>(le);
 636                 break;
 637         default:
 638                 lyxerr << "Unhandled value " << le
 639                        << " in LyXLayout::readEndLabelType." << endl;
 640                 break;
 641         }
 642 }
 643
 644
 645 void LyXLayout::readMargin(LyXLex & lexrc)
 646 {
 647         keyword_item marginTags[] = {
 648                 { "dynamic",           MARGIN_DYNAMIC },
 649                 { "first_dynamic",     MARGIN_FIRST_DYNAMIC },
 650                 { "manual",            MARGIN_MANUAL },
 651                 { "right_address_box", MARGIN_RIGHT_ADDRESS_BOX },
 652                 { "static",            MARGIN_STATIC }
 653         };
 654
 655         pushpophelper pph(lexrc, marginTags, MARGIN_RIGHT_ADDRESS_BOX);
 656
 657         int le = lexrc.lex();
 658         switch (le) {
 659         case LyXLex::LEX_UNDEF:
 660                 lexrc.printError("Unknown margin type tag `$$Token'");
 661                 return;
 662         case MARGIN_STATIC:
 663         case MARGIN_MANUAL:
 664         case MARGIN_DYNAMIC:
 665         case MARGIN_FIRST_DYNAMIC:
 666         case MARGIN_RIGHT_ADDRESS_BOX:
 667                 margintype = static_cast<LYX_MARGIN_TYPE>(le);
 668                 break;
 669         default:
 670                 lyxerr << "Unhandled value " << le
 671                        << " in LyXLayout::readMargin." << endl;
 672                 break;
 673         }
 674 }
 675
 676
 677 void LyXLayout::readLatexType(LyXLex & lexrc)
 678 {
 679         keyword_item latexTypeTags[] = {
 680                 { "command",          LATEX_COMMAND },
 681                 { "environment",      LATEX_ENVIRONMENT },
 682                 { "item_environment", LATEX_ITEM_ENVIRONMENT },
 683                 { "list_environment", LATEX_LIST_ENVIRONMENT },
 684                 { "paragraph",        LATEX_PARAGRAPH }
 685         };
 686
 687         pushpophelper pph(lexrc, latexTypeTags, LATEX_LIST_ENVIRONMENT);
 688         int le = lexrc.lex();
 689         switch (le) {
 690         case LyXLex::LEX_UNDEF:
 691                 lexrc.printError("Unknown latextype tag `$$Token'");
 692                 return;
 693         case LATEX_PARAGRAPH:
 694         case LATEX_COMMAND:
 695         case LATEX_ENVIRONMENT:
 696         case LATEX_ITEM_ENVIRONMENT:
 697         case LATEX_LIST_ENVIRONMENT:
 698                 latextype = static_cast<LYX_LATEX_TYPES>(le);
 699                 break;
 700         default:
 701                 lyxerr << "Unhandled value " << le
 702                        << " in LyXLayout::readLatexType." << endl;
 703                 break;
 704         }
 705 }
 706
 707
 708 enum SpacingTags {
 709         ST_SPACING_SINGLE = 1,
 710         ST_SPACING_ONEHALF,
 711         ST_SPACING_DOUBLE,
 712         ST_OTHER
 713 };
 714
 715
 716 void LyXLayout::readSpacing(LyXLex & lexrc)
 717 {
 718         keyword_item spacingTags[] = {
 719                 {"double",  ST_SPACING_DOUBLE },
 720                 {"onehalf", ST_SPACING_ONEHALF },
 721                 {"other",   ST_OTHER },
 722                 {"single",  ST_SPACING_SINGLE }
 723         };
 724
 725         pushpophelper pph(lexrc, spacingTags, ST_OTHER);
 726         int le = lexrc.lex();
 727         switch (le) {
 728         case LyXLex::LEX_UNDEF:
 729                 lexrc.printError("Unknown spacing token `$$Token'");
 730                 return;
 731         default: break;
 732         }
 733         switch (static_cast<SpacingTags>(le)) {
 734         case ST_SPACING_SINGLE:
 735                 spacing.set(Spacing::Single);
 736                 break;
 737         case ST_SPACING_ONEHALF:
 738                 spacing.set(Spacing::Onehalf);
 739                 break;
 740         case ST_SPACING_DOUBLE:
 741                 spacing.set(Spacing::Double);
 742                 break;
 743         case ST_OTHER:
 744                 lexrc.next();
 745                 spacing.set(Spacing::Other, lexrc.GetFloat());
 746                 break;
 747         }
 748 }
 749
 750
 751 /* ******************************************************************* */
 752
 753 LyXTextClass::LyXTextClass(string const & fn, string const & cln,
 754                            string const & desc)
 755         : name_(fn), latexname_(cln), description_(desc)
 756 {
 757         outputType_ = LATEX;
 758         columns_ = 1;
 759         sides_ = OneSide;
 760         secnumdepth_ = 3;
 761         tocdepth_ = 3;
 762         pagestyle_ = "default";
 763         maxcounter_ = LABEL_COUNTER_CHAPTER;
 764         defaultfont_ = LyXFont(LyXFont::ALL_SANE);
 765         opt_fontsize_ = "10|11|12";
 766         opt_pagestyle_ = "empty|plain|headings|fancy";
 767         provides_ = nothing;
 768         loaded = false;
 769 }
 770
 771
 772 bool LyXTextClass::do_readStyle(LyXLex & lexrc, LyXLayout & lay)
 773 {
 774         lyxerr[Debug::TCLASS] << "Reading style " << lay.name() << endl;
 775         if (!lay.Read(lexrc, *this)) {
 776                 // Reslove fonts
 777                 lay.resfont = lay.font;
 778                 lay.resfont.realize(defaultfont());
 779                 lay.reslabelfont = lay.labelfont;
 780                 lay.reslabelfont.realize(defaultfont());
 781                 return false; // no errors
 782         }
 783         lyxerr << "Error parsing style `" << lay.name() << "'" << endl;
 784         return true;
 785 }
 786
 787
 788 enum TextClassTags {
 789         TC_OUTPUTTYPE = 1,
 790         TC_INPUT,
 791         TC_STYLE,
 792         TC_NOSTYLE,
 793         TC_COLUMNS,
 794         TC_SIDES,
 795         TC_PAGESTYLE,
 796         TC_DEFAULTFONT,
 797         TC_MAXCOUNTER,
 798         TC_SECNUMDEPTH,
 799         TC_TOCDEPTH,
 800         TC_CLASSOPTIONS,
 801         TC_PREAMBLE,
 802         TC_PROVIDESAMSMATH,
 803         TC_PROVIDESMAKEIDX,
 804         TC_PROVIDESURL,
 805         TC_LEFTMARGIN,
 806         TC_RIGHTMARGIN
 807 };
 808
 809
 810 // Reads a textclass structure from file.
 811 bool LyXTextClass::Read(string const & filename, bool merge)
 812 {
 813         keyword_item textClassTags[] = {
 814                 { "classoptions",    TC_CLASSOPTIONS },
 815                 { "columns",         TC_COLUMNS },
 816                 { "defaultfont",     TC_DEFAULTFONT },
 817                 { "input",           TC_INPUT },
 818                 { "leftmargin",      TC_LEFTMARGIN },
 819                 { "maxcounter",      TC_MAXCOUNTER },
 820                 { "nostyle",         TC_NOSTYLE },
 821                 { "outputtype",      TC_OUTPUTTYPE },
 822                 { "pagestyle",       TC_PAGESTYLE },
 823                 { "preamble",        TC_PREAMBLE },
 824                 { "providesamsmath", TC_PROVIDESAMSMATH },
 825                 { "providesmakeidx", TC_PROVIDESMAKEIDX },
 826                 { "providesurl",     TC_PROVIDESURL },
 827                 { "rightmargin",     TC_RIGHTMARGIN },
 828                 { "secnumdepth",     TC_SECNUMDEPTH },
 829                 { "sides",           TC_SIDES },
 830                 { "style",           TC_STYLE },
 831                 { "tocdepth",        TC_TOCDEPTH }
 832         };
 833
 834         if (!merge)
 835                 lyxerr[Debug::TCLASS] << "Reading textclass "
 836                                       << MakeDisplayPath(filename)
 837                                       << endl;
 838         else
 839                 lyxerr[Debug::TCLASS] << "Reading input file "
 840                                      << MakeDisplayPath(filename)
 841                                      << endl;
 842
 843         LyXLex lexrc(textClassTags, TC_RIGHTMARGIN);
 844         bool error = false;
 845
 846         lexrc.setFile(filename);
 847         if (!lexrc.IsOK()) error = true;
 848
 849         // parsing
 850         while (lexrc.IsOK() && !error) {
 851                 int le = lexrc.lex();
 852                 switch (le) {
 853                 case LyXLex::LEX_FEOF:
 854                         continue;
 855
 856                 case LyXLex::LEX_UNDEF:
 857                         lexrc.printError("Unknown TextClass tag `$$Token'");
 858                         error = true;
 859                         continue;
 860                 default: break;
 861                 }
 862                 switch (static_cast<TextClassTags>(le)) {
 863                 case TC_OUTPUTTYPE:   // output type definition
 864                         readOutputType(lexrc);
 865                         break;
 866
 867                 case TC_INPUT: // Include file
 868                         if (lexrc.next()) {
 869                                 string tmp = LibFileSearch("layouts",
 870                                                             lexrc.GetString(),
 871                                                             "layout");
 872
 873                                 if (Read(tmp, true)) {
 874                                         lexrc.printError("Error reading input"
 875                                                          "file: "+tmp);
 876                                         error = true;
 877                                 }
 878                         }
 879                         break;
 880
 881                 case TC_STYLE:
 882                         if (lexrc.next()) {
 883                                 string name = subst(lexrc.GetString(),
 884                                                     '_', ' ');
 885                                 if (hasLayout(name)) {
 886                                         LyXLayout & lay = GetLayout(name);
 887                                         error = do_readStyle(lexrc, lay);
 888                                 } else {
 889                                         LyXLayout lay;
 890                                         lay.setName(name);
 891                                         if (!(error = do_readStyle(lexrc, lay)))
 892                                                 layoutlist.push_back(lay);
 893                                 }
 894                         }
 895                         else {
 896                                 lexrc.printError("No name given for style: `$$Token'.");
 897                                 error = true;
 898                         }
 899                         break;
 900
 901                 case TC_NOSTYLE:
 902                         if (lexrc.next()) {
 903                                 string style = subst(lexrc.GetString(),
 904                                                      '_', ' ');
 905                                 if (!delete_layout(style))
 906                                         lexrc.printError("Cannot delete style"
 907                                                          " `$$Token'");
 908                         }
 909                         break;
 910
 911                 case TC_COLUMNS:
 912                         if (lexrc.next())
 913                                 columns_ = lexrc.GetInteger();
 914                         break;
 915
 916                 case TC_SIDES:
 917                         if (lexrc.next()) {
 918                                 switch (lexrc.GetInteger()) {
 919                                 case 1: sides_ = OneSide; break;
 920                                 case 2: sides_ = TwoSides; break;
 921                                 default:
 922                                         lyxerr << "Impossible number of page"
 923                                                 " sides, setting to one."
 924                                                << endl;
 925                                         sides_ = OneSide;
 926                                         break;
 927                                 }
 928                         }
 929                         break;
 930
 931                 case TC_PAGESTYLE:
 932                         lexrc.next();
 933                         pagestyle_ = strip(lexrc.GetString());
 934                         break;
 935
 936                 case TC_DEFAULTFONT:
 937                         defaultfont_.lyxRead(lexrc);
 938                         if (!defaultfont_.resolved()) {
 939                                 lexrc.printError("Warning: defaultfont should "
 940                                                  "be fully instantiated!");
 941                                 defaultfont_.realize(LyXFont(LyXFont::ALL_SANE));
 942                         }
 943                         break;
 944
 945                 case TC_MAXCOUNTER:
 946                         readMaxCounter(lexrc);
 947                         break;
 948
 949                 case TC_SECNUMDEPTH:
 950                         lexrc.next();
 951                         secnumdepth_ = lexrc.GetInteger();
 952                         break;
 953
 954                 case TC_TOCDEPTH:
 955                         lexrc.next();
 956                         tocdepth_ = lexrc.GetInteger();
 957                         break;
 958
 959                         // First step to support options
 960                 case TC_CLASSOPTIONS:
 961                         readClassOptions(lexrc);
 962                         break;
 963
 964                 case TC_PREAMBLE:
 965                         preamble_ = lexrc.getLongString("EndPreamble");
 966                         break;
 967
 968                 case TC_PROVIDESAMSMATH:
 969                         if (lexrc.next() && lexrc.GetInteger())
 970                                 provides_ |= amsmath;
 971                         break;
 972
 973                 case TC_PROVIDESMAKEIDX:
 974                         if (lexrc.next() && lexrc.GetInteger())
 975                                 provides_ |= makeidx;
 976                         break;
 977
 978                 case TC_PROVIDESURL:
 979                         if (lexrc.next() && lexrc.GetInteger())
 980                                 provides_ = url;
 981                         break;
 982
 983                 case TC_LEFTMARGIN:     // left margin type
 984                         if (lexrc.next())
 985                                 leftmargin_ = lexrc.GetString();
 986                         break;
 987
 988                 case TC_RIGHTMARGIN:    // right margin type
 989                         if (lexrc.next())
 990                                 rightmargin_ = lexrc.GetString();
 991                         break;
 992                 }
 993         }
 994
 995         if (!merge) { // we are at top level here.
 996                 lyxerr[Debug::TCLASS] << "Finished reading textclass "
 997                                       << MakeDisplayPath(filename)
 998                                       << endl;
 999         } else
1000                 lyxerr[Debug::TCLASS] << "Finished reading input file "
1001                                       << MakeDisplayPath(filename)
1002                                       << endl;
1003
1004         return error;
1005 }
1006
1007
1008 void LyXTextClass::readOutputType(LyXLex & lexrc)
1009 {
1010         keyword_item outputTypeTags[] = {
1011                 { "docbook", DOCBOOK },
1012                 { "latex", LATEX },
1013                 { "linuxdoc", LINUXDOC },
1014                 { "literate", LITERATE }
1015         };
1016
1017         pushpophelper pph(lexrc, outputTypeTags, LITERATE);
1018
1019         int le = lexrc.lex();
1020         switch (le) {
1021         case LyXLex::LEX_UNDEF:
1022                 lexrc.printError("Unknown output type `$$Token'");
1023                 return;
1024         case LATEX:
1025         case LINUXDOC:
1026         case DOCBOOK:
1027         case LITERATE:
1028                 outputType_ = static_cast<OutputType>(le);
1029                 break;
1030         default:
1031                 lyxerr << "Unhandled value " << le
1032                        << " in LyXTextClass::readOutputType." << endl;
1033
1034                 break;
1035         }
1036 }
1037
1038
1039 enum MaxCounterTags {
1040         MC_COUNTER_CHAPTER = 1,
1041         MC_COUNTER_SECTION,
1042         MC_COUNTER_SUBSECTION,
1043         MC_COUNTER_SUBSUBSECTION,
1044         MC_COUNTER_PARAGRAPH,
1045         MC_COUNTER_SUBPARAGRAPH,
1046         MC_COUNTER_ENUMI,
1047         MC_COUNTER_ENUMII,
1048         MC_COUNTER_ENUMIII,
1049         MC_COUNTER_ENUMIV
1050 };
1051
1052
1053 void LyXTextClass::readMaxCounter(LyXLex & lexrc)
1054 {
1055         keyword_item maxCounterTags[] = {
1056                 {"counter_chapter", MC_COUNTER_CHAPTER },
1057                 {"counter_enumi", MC_COUNTER_ENUMI },
1058                 {"counter_enumii", MC_COUNTER_ENUMII },
1059                 {"counter_enumiii", MC_COUNTER_ENUMIII },
1060                 {"counter_enumiv", MC_COUNTER_ENUMIV },
1061                 {"counter_paragraph", MC_COUNTER_PARAGRAPH },
1062                 {"counter_section", MC_COUNTER_SECTION },
1063                 {"counter_subparagraph", MC_COUNTER_SUBPARAGRAPH },
1064                 {"counter_subsection", MC_COUNTER_SUBSECTION },
1065                 {"counter_subsubsection", MC_COUNTER_SUBSUBSECTION }
1066         };
1067
1068         pushpophelper pph(lexrc, maxCounterTags, MC_COUNTER_ENUMIV);
1069         int le = lexrc.lex();
1070         switch (le) {
1071         case LyXLex::LEX_UNDEF:
1072                 lexrc.printError("Unknown MaxCounter tag `$$Token'");
1073                 return;
1074         default: break;
1075         }
1076         switch (static_cast<MaxCounterTags>(le)) {
1077         case MC_COUNTER_CHAPTER:
1078                 maxcounter_ = LABEL_COUNTER_CHAPTER;
1079                 break;
1080         case MC_COUNTER_SECTION:
1081                 maxcounter_ = LABEL_COUNTER_SECTION;
1082                 break;
1083         case MC_COUNTER_SUBSECTION:
1084                 maxcounter_ = LABEL_COUNTER_SUBSECTION;
1085                 break;
1086         case MC_COUNTER_SUBSUBSECTION:
1087                 maxcounter_ = LABEL_COUNTER_SUBSUBSECTION;
1088                 break;
1089         case MC_COUNTER_PARAGRAPH:
1090                 maxcounter_ = LABEL_COUNTER_PARAGRAPH;
1091                 break;
1092         case MC_COUNTER_SUBPARAGRAPH:
1093                 maxcounter_ = LABEL_COUNTER_SUBPARAGRAPH;
1094                 break;
1095         case MC_COUNTER_ENUMI:
1096                 maxcounter_ = LABEL_COUNTER_ENUMI;
1097                 break;
1098         case MC_COUNTER_ENUMII:
1099                 maxcounter_ = LABEL_COUNTER_ENUMII;
1100                 break;
1101         case MC_COUNTER_ENUMIII:
1102                 maxcounter_ = LABEL_COUNTER_ENUMIII;
1103                 break;
1104         case MC_COUNTER_ENUMIV:
1105                 maxcounter_ = LABEL_COUNTER_ENUMIV;
1106                 break;
1107         }
1108 }
1109
1110
1111 enum ClassOptionsTags {
1112         CO_FONTSIZE = 1,
1113         CO_PAGESTYLE,
1114         CO_OTHER,
1115         CO_END
1116 };
1117
1118
1119 void LyXTextClass::readClassOptions(LyXLex & lexrc)
1120 {
1121         keyword_item classOptionsTags[] = {
1122                 {"end", CO_END },
1123                 {"fontsize", CO_FONTSIZE },
1124                 {"other", CO_OTHER },
1125                 {"pagestyle", CO_PAGESTYLE }
1126         };
1127
1128         lexrc.pushTable(classOptionsTags, CO_END);
1129         bool getout = false;
1130         while (!getout && lexrc.IsOK()) {
1131                 int le = lexrc.lex();
1132                 switch (le) {
1133                 case LyXLex::LEX_UNDEF:
1134                         lexrc.printError("Unknown ClassOption tag `$$Token'");
1135                         continue;
1136                 default: break;
1137                 }
1138                 switch (static_cast<ClassOptionsTags>(le)) {
1139                 case CO_FONTSIZE:
1140                         lexrc.next();
1141                         opt_fontsize_ = strip(lexrc.GetString());
1142                         break;
1143                 case CO_PAGESTYLE:
1144                         lexrc.next();
1145                         opt_pagestyle_ = strip(lexrc.GetString());
1146                         break;
1147                 case CO_OTHER:
1148                         lexrc.next();
1149                         options_ = lexrc.GetString();
1150                         break;
1151                 case CO_END:
1152                         getout = true;
1153                         break;
1154                 }
1155         }
1156         lexrc.popTable();
1157 }
1158
1159
1160 bool LyXTextClass::hasLayout(string const & name) const
1161 {
1162         return find_if(layoutlist.begin(), layoutlist.end(),
1163                        lyx::compare_memfun(&LyXLayout::name, name))
1164                 != layoutlist.end();
1165 }
1166
1167
1168 LyXLayout const & LyXTextClass::GetLayout (string const & name) const
1169 {
1170         LayoutList::const_iterator cit =
1171                 find_if(layoutlist.begin(),
1172                         layoutlist.end(),
1173                         lyx::compare_memfun(&LyXLayout::name, name));
1174         lyx::Assert(cit != layoutlist.end()); // we require the name to exist
1175         return (*cit);
1176 }
1177
1178
1179 LyXLayout & LyXTextClass::GetLayout(string const & name)
1180 {
1181         LayoutList::iterator it =
1182                 find_if(layoutlist.begin(),
1183                         layoutlist.end(),
1184                         lyx::compare_memfun(&LyXLayout::name, name));
1185         lyx::Assert(it != layoutlist.end()); // we require the name to exist
1186         return (*it);
1187 }
1188
1189
1190 bool LyXTextClass::delete_layout(string const & name)
1191 {
1192         LayoutList::iterator it =
1193                 remove_if(layoutlist.begin(), layoutlist.end(),
1194                           lyx::compare_memfun(&LyXLayout::name, name));
1195         LayoutList::iterator end = layoutlist.end();
1196         bool const ret = (it != end);
1197         layoutlist.erase(it, end);
1198         return ret;
1199 }
1200
1201
1202 // Load textclass info if not loaded yet
1203 void LyXTextClass::load()
1204 {
1205         if (loaded) return;
1206
1207         // Read style-file
1208         string const real_file = LibFileSearch("layouts", name_, "layout");
1209
1210         if (Read(real_file)) {
1211                 lyxerr << "Error reading `"
1212                        << MakeDisplayPath(real_file)
1213                        << "'\n(Check `" << name_
1214                        << "')\nCheck your installation and "
1215                         "try Options/Reconfigure..." << endl;
1216         }
1217         loaded = true;
1218 }
1219
1220
1221 //////////////////////////////////////////
1222
1223 // Gets textclass number from name
1224 pair<bool, LyXTextClassList::size_type> const
1225 LyXTextClassList::NumberOfClass(string const & textclass) const
1226 {
1227         ClassList::const_iterator cit =
1228                 find_if(classlist.begin(), classlist.end(),
1229                         lyx::compare_memfun(&LyXTextClass::name, textclass));
1230         return cit != classlist.end() ?
1231                 make_pair(true, size_type(cit - classlist.begin())) :
1232                 make_pair(false, size_type(0));
1233 }
1234
1235
1236 // Gets layout structure from style number and textclass number
1237 LyXLayout const &
1238 LyXTextClassList::Style(LyXTextClassList::size_type textclass,
1239                         LyXTextClass::size_type layout) const
1240 {
1241         classlist[textclass].load();
1242         if (layout < classlist[textclass].numLayouts())
1243                 return classlist[textclass][layout];
1244         return classlist[textclass][0];
1245 }
1246
1247
1248 // Gets layout number from name and textclass number
1249 pair<bool, LyXTextClass::size_type> const
1250 LyXTextClassList::NumberOfLayout(LyXTextClassList::size_type textclass,
1251                                  string const & name) const
1252 {
1253         classlist[textclass].load();
1254         for (unsigned int i = 0; i < classlist[textclass].numLayouts(); ++i) {
1255                 if (classlist[textclass][i].name() == name)
1256                         return make_pair(true, i);
1257         }
1258         if (name == "dummy")
1259                 return make_pair(true, LyXTextClassList::size_type(LYX_DUMMY_LAYOUT));
1260         return make_pair(false, LyXTextClass::size_type(0)); // not found
1261 }
1262
1263
1264 // Gets a layout (style) name from layout number and textclass number
1265 string const &
1266 LyXTextClassList::NameOfLayout(LyXTextClassList::size_type textclass,
1267                                LyXTextClass::size_type layout) const
1268 {
1269         static string const dummy("dummy");
1270         classlist[textclass].load();
1271         if (layout < classlist[textclass].numLayouts())
1272                 return classlist[textclass][layout].name();
1273         return dummy;
1274 }
1275
1276
1277 // Gets a textclass name from number
1278 string const &
1279 LyXTextClassList::NameOfClass(LyXTextClassList::size_type number) const
1280 {
1281         static string const dummy("dummy");
1282         if (classlist.size() == 0) {
1283                 return dummy;
1284         }
1285         lyx::Assert(number < classlist.size());
1286         return classlist[number].name();
1287 }
1288
1289
1290 // Gets a textclass latexname from number
1291 string const &
1292 LyXTextClassList::LatexnameOfClass(LyXTextClassList::size_type number) const
1293 {
1294         static string const dummy("dummy");
1295         classlist[number].load();
1296         if (classlist.size() == 0) {
1297                 return dummy;
1298         }
1299         lyx::Assert(number < classlist.size());
1300         return classlist[number].latexname();
1301 }
1302
1303
1304 // Gets a textclass description from number
1305 string const &
1306 LyXTextClassList::DescOfClass(LyXTextClassList::size_type number) const
1307 {
1308         static string const dummy("dummy");
1309         if (classlist.size() == 0) {
1310                 return dummy;
1311         }
1312         lyx::Assert(number < classlist.size());
1313         return classlist[number].description();
1314 }
1315
1316
1317 // Gets a textclass structure from number
1318 LyXTextClass const &
1319 LyXTextClassList::TextClass(LyXTextClassList::size_type textclass) const
1320 {
1321         classlist[textclass].load();
1322         if (textclass < classlist.size())
1323                 return classlist[textclass];
1324         else
1325                 return classlist[0];
1326 }
1327
1328
1329 void LyXTextClassList::Add(LyXTextClass const & t)
1330 {
1331         classlist.push_back(t);
1332 }
1333
1334
1335 // used when sorting the textclass list.
1336 class less_textclass_desc {
1337 public:
1338         int operator()(LyXTextClass const & tc1, LyXTextClass const & tc2) {
1339                 return tc1.description() < tc2.description();
1340         }
1341 };
1342
1343
1344 // Reads LyX textclass definitions according to textclass config file
1345 bool LyXTextClassList::Read ()
1346 {
1347         LyXLex lex(0, 0);
1348         string real_file = LibFileSearch("", "textclass.lst");
1349         lyxerr[Debug::TCLASS] << "Reading textclasses from `"
1350                               << real_file << "'" << endl;
1351
1352         if (real_file.empty()) {
1353                 lyxerr << "LyXTextClassList::Read: unable to find "
1354                         "textclass file  `" << MakeDisplayPath(real_file, 1000)
1355                        << "'. Exiting." << endl;
1356
1357                 WriteAlert(_("LyX wasn't able to find its layout descriptions!"),
1358                            _("Check that the file \"textclass.lst\""),
1359                            _("is installed correctly. Sorry, has to exit :-("));
1360                 return false;
1361                 // This causes LyX to end... Not a desirable behaviour. Lgb
1362                 // What do you propose? That the user gets a file dialog
1363                 // and is allowed to hunt for the file? (Asger)
1364                 // more that we have a layout for minimal.cls statically
1365                 // compiled in... (Lgb)
1366         }
1367
1368         if (!lex.setFile(real_file)) {
1369                 lyxerr << "LyXTextClassList::Read: "
1370                         "lyxlex was not able to set file: "
1371                        << real_file << endl;
1372         }
1373
1374         if (!lex.IsOK()) {
1375                 lyxerr << "LyXTextClassList::Read: unable to open "
1376                         "textclass file  `" << MakeDisplayPath(real_file, 1000)
1377                        << "'\nCheck your installation. LyX can't continue."
1378                        << endl;
1379                 return false;
1380         }
1381         bool finished = false;
1382         string fname, clname, desc;
1383         // Parse config-file
1384         lyxerr[Debug::TCLASS] << "Starting parsing of textclass.lst" << endl;
1385         while (lex.IsOK() && !finished) {
1386                 lyxerr[Debug::TCLASS] << "\tline by line" << endl;
1387                 switch (lex.lex()) {
1388                 case LyXLex::LEX_FEOF:
1389                         finished = true;
1390                         break;
1391                 default:
1392                         fname = lex.GetString();
1393                         lyxerr[Debug::TCLASS] << "Fname: " << fname << endl;
1394                         if (lex.next()) {
1395                                 clname = lex.GetString();
1396                                 lyxerr[Debug::TCLASS]
1397                                         << "Clname: " << clname << endl;
1398                                 if (lex.next()) {
1399                                               desc = lex.GetString();
1400                                               lyxerr[Debug::TCLASS]
1401                                                       << "Desc: " << desc << endl;
1402                                               // This code is run when we have
1403                                               // fname, clname and desc
1404                                               LyXTextClass tmpl(fname,
1405                                                                 clname,
1406                                                                 desc);
1407                                               if (lyxerr.
1408                                                   debugging(Debug::TCLASS)) {
1409                                                       tmpl.load();
1410                                               }
1411                                               Add (tmpl);
1412                                 }
1413                         }
1414                 }
1415         }
1416         lyxerr[Debug::TCLASS] << "End of parsing of textclass.lst" << endl;
1417
1418         if (classlist.size() == 0) {
1419                 lyxerr << "LyXTextClassList::Read: no textclasses found!"
1420                        << endl;
1421                 WriteAlert(_("LyX wasn't able to find any layout description!"),
1422                            _("Check the contents of  the file \"textclass.lst\""),
1423                            _("Sorry, has to exit :-("));
1424                 return false;
1425         }
1426         // Ok everything loaded ok, now sort the list.
1427         sort(classlist.begin(), classlist.end(), less_textclass_desc());
1428         return true;
1429 }
1430
1431
1432 /* Load textclass
1433    Returns false if this fails
1434 */
1435 bool
1436 LyXTextClassList::Load (LyXTextClassList::size_type number) const
1437 {
1438         bool result = true;
1439         if (number < classlist.size()) {
1440                 classlist[number].load();
1441                 if (classlist[number].numLayouts() == 0) {
1442                         result = false;
1443                 }
1444         } else {
1445                 result = false;
1446         }
1447         return result;
1448 }
1449
1450
1451 std::ostream & operator<<(std::ostream & os, LyXTextClass::PageSides p)
1452 {
1453         switch (p) {
1454         case LyXTextClass::OneSide:
1455                 os << "1";
1456                 break;
1457         case LyXTextClass::TwoSides:
1458                 os << "2";
1459                 break;
1460         }
1461         return os;
1462 }
1463