src/tex2lyx/table.cpp

   1 /**
   2  * \file table.cpp
   3  * This file is part of LyX, the document processor.
   4  * Licence details can be found in the file COPYING.
   5  *
   6  * \author André Pönitz
   7  * \author Jean-Marc Lasgouttes
   8  * \author Georg Baum
   9  *
  10  * Full author contact details are available in file CREDITS.
  11  */
  12
  13 // {[(
  14
  15 #include <config.h>
  16
  17 #include "tex2lyx.h"
  18
  19 #include "Preamble.h"
  20
  21 #include "support/lassert.h"
  22 #include "support/convert.h"
  23 #include "support/lstrings.h"
  24
  25 #include <algorithm>
  26 #include <iostream>
  27 #include <sstream>
  28 #include <vector>
  29 #include <map>
  30
  31 using namespace std;
  32
  33 namespace lyx {
  34
  35
  36 namespace {
  37
  38 class ColInfo {
  39 public:
  40         ColInfo() : align('n'), valign('n'), rightlines(0), leftlines(0), varwidth(false) {}
  41         /// column alignment
  42         char align;
  43         /// vertical alignment
  44         char valign;
  45         /// column width
  46         string width;
  47         /// special column alignment
  48         string special;
  49         /// number of lines on the right
  50         int rightlines;
  51         /// number of lines on the left
  52         int leftlines;
  53         /// varwidth column
  54         bool varwidth;
  55 };
  56
  57
  58 /// row type for longtables
  59 enum LTRowType
  60 {
  61         /// normal row
  62         LT_NORMAL,
  63         /// part of head
  64         LT_HEAD,
  65         /// part of head on first page
  66         LT_FIRSTHEAD,
  67         /// part of foot
  68         LT_FOOT,
  69         /// part of foot on last page
  70         LT_LASTFOOT
  71 };
  72
  73
  74 class RowInfo {
  75 public:
  76         RowInfo() : topline(false), bottomline(false), type(LT_NORMAL),
  77                     caption(false), newpage(false) {}
  78         /// Does this row have any special setting?
  79         bool special() const
  80         {
  81                 return topline || bottomline || !top_space.empty() ||
  82                         !bottom_space.empty() || !interline_space.empty() ||
  83                         type != LT_NORMAL || caption || newpage;
  84         }
  85         /// horizontal line above
  86         bool topline;
  87         /// horizontal line below
  88         bool bottomline;
  89         /// Extra space between the top line and this row
  90         string top_space;
  91         /// Extra space between this row and the bottom line
  92         string bottom_space;
  93         /// Extra space between the bottom line and the next top line
  94         string interline_space;
  95         /// These are for longtabulars only
  96         /// row type (head, foot, firsthead etc.)
  97         LTRowType type;
  98         /// row for a caption
  99         bool caption;
 100         /// row for a newpage
 101         bool newpage;
 102 };
 103
 104
 105 /// the numeric values are part of the file format!
 106 enum Multi {
 107         /// A normal cell
 108         CELL_NORMAL = 0,
 109         /// A multicolumn cell. The number of columns is <tt>1 + number
 110         /// of CELL_PART_OF_MULTICOLUMN cells</tt> that follow directly
 111         CELL_BEGIN_OF_MULTICOLUMN,
 112         /// This is a dummy cell (part of a multicolumn cell)
 113         CELL_PART_OF_MULTICOLUMN,
 114         ///
 115         CELL_BEGIN_OF_MULTIROW,
 116         ///
 117         CELL_PART_OF_MULTIROW
 118 };
 119
 120
 121 class CellInfo {
 122 public:
 123         CellInfo() : multi(CELL_NORMAL), align('n'), valign('n'),
 124                      leftlines(0), rightlines(0), topline(false),
 125                      bottomline(false), rotate(0), mrxnum(0) {}
 126         /// cell content
 127         string content;
 128         /// multicolumn flag
 129         Multi multi;
 130         /// cell alignment
 131         char align;
 132         /// vertical cell alignment
 133         char valign;
 134         /// number of lines on the left
 135         int leftlines;
 136         /// number of lines on the right
 137         int rightlines;
 138         /// do we have a line above?
 139         bool topline;
 140         /// do we have a line below?
 141         bool bottomline;
 142         /// how is the cell rotated?
 143         int rotate;
 144         /// width for multicolumn cells
 145         string width;
 146         /// special formatting for multicolumn cells
 147         string special;
 148         /// multirow offset
 149         string mroffset;
 150         /// number of further multirows
 151         int mrxnum;
 152 };
 153
 154
 155 class ltType {
 156 public:
 157         // constructor
 158         ltType() : set(false), topDL(false), bottomDL(false), empty(false) {}
 159         // we have this header type (is set in the getLT... functions)
 160         bool set;
 161         // double borders on top
 162         bool topDL;
 163         // double borders on bottom
 164         bool bottomDL;
 165         // used for FirstHeader & LastFooter and if this is true
 166         // all the rows marked as FirstHeader or LastFooter are
 167         // ignored in the output and it is set to be empty!
 168         bool empty;
 169 };
 170
 171
 172 /// translate a horizontal alignment (as stored in ColInfo and CellInfo) to LyX
 173 inline char const * verbose_align(char c)
 174 {
 175         switch (c) {
 176         case 'c':
 177                 return "center";
 178         case 'r':
 179                 return "right";
 180         case 'l':
 181                 return "left";
 182         default:
 183                 return "none";
 184         }
 185 }
 186
 187
 188 /// translate a vertical alignment (as stored in ColInfo and CellInfo) to LyX
 189 inline char const * verbose_valign(char c)
 190 {
 191         // The default value for no special alignment is "top".
 192         switch (c) {
 193         case 'm':
 194                 return "middle";
 195         case 'b':
 196                 return "bottom";
 197         case 'p':
 198         default:
 199                 return "top";
 200         }
 201 }
 202
 203
 204 // stripped down from tabluar.C. We use it currently only for bools and
 205 // strings
 206 string const write_attribute(string const & name, bool const & b)
 207 {
 208         // we write only true attribute values so we remove a bit of the
 209         // file format bloat for tabulars.
 210         return b ? ' ' + name + "=\"true\"" : string();
 211 }
 212
 213
 214 string const write_attribute(string const & name, string const & s)
 215 {
 216         return s.empty() ? string() : ' ' + name + "=\"" + s + '"';
 217 }
 218
 219
 220 string const write_attribute(string const & name, int const & i)
 221 {
 222         // we write only true attribute values so we remove a bit of the
 223         // file format bloat for tabulars.
 224         return i ? write_attribute(name, convert<string>(i)) : string();
 225 }
 226
 227
 228 /*! rather brutish way to code table structure in a string:
 229
 230 \verbatim
 231   \begin{tabular}{ccc}
 232     1 & 2 & 3\\ \hline
 233     \multicolumn{2}{c}{4} & 5 //
 234     6 & 7 \\
 235     8 \endhead
 236   \end{tabular}
 237 \endverbatim
 238
 239  gets "translated" to:
 240
 241 \verbatim
 242          HLINE 1                     TAB 2 TAB 3 HLINE          HLINE LINE
 243   \hline HLINE \multicolumn{2}{c}{4} TAB 5       HLINE          HLINE LINE
 244          HLINE 6                     TAB 7       HLINE          HLINE LINE
 245          HLINE 8                                 HLINE \endhead HLINE LINE
 246 \endverbatim
 247  */
 248
 249 char const TAB   = '\001';
 250 char const LINE  = '\002';
 251 char const HLINE = '\004';
 252
 253
 254 /*!
 255  * Move the information in leftlines, rightlines, align and valign to the
 256  * special field. This is necessary if the special field is not empty,
 257  * because LyX ignores leftlines > 1, rightlines > 1, align and valign in
 258  * this case.
 259  */
 260 void ci2special(ColInfo & ci)
 261 {
 262         if (ci.width.empty() && ci.align == 'n')
 263                 // The alignment setting is already in special, since
 264                 // handle_colalign() never stores ci with these settings
 265                 // and ensures that leftlines == 0 and rightlines == 0 in
 266                 // this case.
 267                 return;
 268
 269         if (!ci.width.empty()) {
 270                 string arraybackslash;
 271                 if (ci.varwidth)
 272                         arraybackslash = "\\arraybackslash";
 273                 switch (ci.align) {
 274                 case 'l':
 275                         ci.special += ">{\\raggedright" + arraybackslash + "}";
 276                         break;
 277                 case 'r':
 278                         ci.special += ">{\\raggedleft" + arraybackslash + "}";
 279                         break;
 280                 case 'c':
 281                         ci.special += ">{\\centering" + arraybackslash + "}";
 282                         break;
 283                 }
 284                 if (ci.varwidth)
 285                         ci.special += 'X';
 286                 else if (ci.valign == 'n')
 287                         ci.special += 'p';
 288                 else
 289                         ci.special += ci.valign;
 290                 ci.special += '{' + ci.width + '}';
 291                 ci.width.erase();
 292         } else
 293                 ci.special += ci.align;
 294
 295         // LyX can only have one left and one right line.
 296         for (int i = 1; i < ci.leftlines; ++i)
 297                 ci.special.insert(0, "|");
 298         for (int i = 1; i < ci.rightlines; ++i)
 299                 ci.special += '|';
 300         ci.leftlines = min(ci.leftlines, 1);
 301         ci.rightlines = min(ci.rightlines, 1);
 302         ci.align = 'n';
 303         ci.valign = 'n';
 304 }
 305
 306
 307 /*!
 308  * Handle column specifications for tabulars and multicolumns.
 309  * The next token of the parser \p p must be an opening brace, and we read
 310  * everything until the matching closing brace.
 311  * The resulting column specifications are filled into \p colinfo. This is
 312  * in an intermediate form. fix_colalign() makes it suitable for LyX output.
 313  */
 314 void handle_colalign(Parser & p, vector<ColInfo> & colinfo,
 315                      ColInfo const & start)
 316 {
 317         if (p.get_token().cat() != catBegin)
 318                 cerr << "Wrong syntax for table column alignment.\n"
 319                         "Expected '{', got '" << p.curr_token().asInput()
 320                      << "'.\n";
 321
 322         ColInfo next = start;
 323         for (Token t = p.get_token(); p.good() && t.cat() != catEnd;
 324              t = p.get_token()) {
 325 #ifdef FILEDEBUG
 326                 cerr << "t: " << t << "  c: '" << t.character() << "'\n";
 327 #endif
 328
 329                 // We cannot handle comments here
 330                 if (t.cat() == catComment) {
 331                         if (t.cs().empty()) {
 332                                 // "%\n" combination
 333                                 p.skip_spaces();
 334                         } else
 335                                 cerr << "Ignoring comment: " << t.asInput();
 336                         continue;
 337                 }
 338
 339                 switch (t.character()) {
 340                         case ' ':
 341                                 // whitespace, ignore.
 342                                 break;
 343                         case 'c':
 344                         case 'l':
 345                         case 'r':
 346                                 // new column, horizontal aligned
 347                                 next.align = t.character();
 348                                 if (!next.special.empty())
 349                                         ci2special(next);
 350                                 colinfo.push_back(next);
 351                                 next = ColInfo();
 352                                 break;
 353                         case 'X':
 354                                 // varwidth column
 355                                 next.varwidth = true;
 356                                 if (!next.special.empty())
 357                                         ci2special(next);
 358                                 colinfo.push_back(next);
 359                                 next = ColInfo();
 360                                 break;
 361                         case 'p':
 362                         case 'b':
 363                         case 'm':
 364                                 // new column, vertical aligned box
 365                                 next.valign = t.character();
 366                                 next.width = p.verbatim_item();
 367                                 if (!next.special.empty())
 368                                         ci2special(next);
 369                                 colinfo.push_back(next);
 370                                 next = ColInfo();
 371                                 break;
 372                         case '|':
 373                                 // vertical rule
 374                                 if (colinfo.empty()) {
 375                                         if (next.special.empty())
 376                                                 ++next.leftlines;
 377                                         else
 378                                                 next.special += '|';
 379                                 } else if (colinfo.back().special.empty())
 380                                         ++colinfo.back().rightlines;
 381                                 else if (next.special.empty())
 382                                         ++next.leftlines;
 383                                 else
 384                                         colinfo.back().special += '|';
 385                                 break;
 386                         case '>': {
 387                                 // text before the next column
 388                                 string const s = trimSpaceAndEol(p.verbatim_item());
 389                                 if (next.special.empty() &&
 390                                     next.align == 'n') {
 391                                         // Maybe this can be converted to a
 392                                         // horizontal alignment setting for
 393                                         // fixed width columns
 394                                         if (s == "\\raggedleft" || s == "\\raggedleft\\arraybackslash")
 395                                                 next.align = 'r';
 396                                         else if (s == "\\raggedright" || s == "\\raggedright\\arraybackslash")
 397                                                 next.align = 'l';
 398                                         else if (s == "\\centering" || s == "\\centering\\arraybackslash")
 399                                                 next.align = 'c';
 400                                         else
 401                                                 next.special = ">{" + s + '}';
 402                                 } else
 403                                         next.special += ">{" + s + '}';
 404                                 break;
 405                         }
 406                         case '<': {
 407                                 // text after the last column
 408                                 string const s = trimSpaceAndEol(p.verbatim_item());
 409                                 if (colinfo.empty())
 410                                         // This is not possible in LaTeX.
 411                                         cerr << "Ignoring separator '<{"
 412                                              << s << "}'." << endl;
 413                                 else {
 414                                         ColInfo & ci = colinfo.back();
 415                                         ci2special(ci);
 416                                         ci.special += "<{" + s + '}';
 417                                 }
 418                                 break;
 419                         }
 420                         case '*': {
 421                                 if (p.next_token().character() != '{')
 422                                         continue;
 423                                 // *{n}{arg} means 'n' columns of type 'arg'
 424                                 string const num = p.verbatim_item();
 425                                 string const arg = p.verbatim_item();
 426                                 size_t const n = convert<unsigned int>(num);
 427                                 if (!arg.empty() && n > 0) {
 428                                         string s("{");
 429                                         for (size_t i = 0; i < n; ++i)
 430                                                 s += arg;
 431                                         s += '}';
 432                                         Parser p2(s);
 433                                         handle_colalign(p2, colinfo, next);
 434                                         next = ColInfo();
 435                                 } else {
 436                                         cerr << "Ignoring column specification"
 437                                                 " '*{" << num << "}{"
 438                                              << arg << "}'." << endl;
 439                                 }
 440                                 break;
 441                         }
 442                         case '@':
 443                                 // text instead of the column spacing
 444                         case '!':
 445                                 // text in addition to the column spacing
 446                                 next.special += t.character();
 447                                 next.special += '{' + p.verbatim_item() + '}';
 448                                 break;
 449                         default: {
 450                                 // try user defined column types
 451                                 // unknown column types (nargs == -1) are
 452                                 // assumed to consume no arguments
 453                                 ci2special(next);
 454                                 next.special += t.character();
 455                                 int const nargs =
 456                                         preamble.getSpecialTableColumnArguments(t.character());
 457                                 for (int i = 0; i < nargs; ++i)
 458                                         next.special += '{' +
 459                                                 p.verbatim_item() + '}';
 460                                 colinfo.push_back(next);
 461                                 next = ColInfo();
 462                                 break;
 463                         }
 464                         }
 465         }
 466
 467         // Maybe we have some column separators that need to be added to the
 468         // last column?
 469         ci2special(next);
 470         if (!next.special.empty()) {
 471                 ColInfo & ci = colinfo.back();
 472                 ci2special(ci);
 473                 ci.special += next.special;
 474                 next.special.erase();
 475         }
 476 }
 477
 478
 479 /*!
 480  * Move the left and right lines and alignment settings of the column \p ci
 481  * to the special field if necessary.
 482  */
 483 void fix_colalign(ColInfo & ci)
 484 {
 485         if (ci.leftlines > 1 || ci.rightlines > 1)
 486                 ci2special(ci);
 487 }
 488
 489
 490 /*!
 491  * LyX can't handle more than one vertical line at the left or right side
 492  * of a column.
 493  * This function moves the left and right lines and alignment settings of all
 494  * columns in \p colinfo to the special field if necessary.
 495  */
 496 void fix_colalign(vector<ColInfo> & colinfo)
 497 {
 498         // Try to move extra leftlines to the previous column.
 499         // We do this only if both special fields are empty, otherwise we
 500         // can't tell wether the result will be the same.
 501         for (size_t col = 0; col < colinfo.size(); ++col) {
 502                 if (colinfo[col].leftlines > 1 &&
 503                     colinfo[col].special.empty() && col > 0 &&
 504                     colinfo[col - 1].rightlines == 0 &&
 505                     colinfo[col - 1].special.empty()) {
 506                         ++colinfo[col - 1].rightlines;
 507                         --colinfo[col].leftlines;
 508                 }
 509         }
 510         // Try to move extra rightlines to the next column
 511         for (size_t col = 0; col < colinfo.size(); ++col) {
 512                 if (colinfo[col].rightlines > 1 &&
 513                     colinfo[col].special.empty() &&
 514                     col < colinfo.size() - 1 &&
 515                     colinfo[col + 1].leftlines == 0 &&
 516                     colinfo[col + 1].special.empty()) {
 517                         ++colinfo[col + 1].leftlines;
 518                         --colinfo[col].rightlines;
 519                 }
 520         }
 521         // Move the lines and alignment settings to the special field if
 522         // necessary
 523         for (size_t col = 0; col < colinfo.size(); ++col)
 524                 fix_colalign(colinfo[col]);
 525 }
 526
 527
 528 /*!
 529  * Parse hlines and similar stuff.
 530  * \returns wether the token \p t was parsed
 531  */
 532 bool parse_hlines(Parser & p, Token const & t, string & hlines,
 533                   bool is_long_tabular)
 534 {
 535         LASSERT(t.cat() == catEscape, return false);
 536
 537         if (t.cs() == "hline" || t.cs() == "toprule" || t.cs() == "midrule" ||
 538             t.cs() == "bottomrule")
 539                 hlines += '\\' + t.cs();
 540
 541         else if (t.cs() == "cline")
 542                 hlines += "\\cline{" + p.verbatim_item() + '}';
 543
 544         else if (t.cs() == "cmidrule") {
 545                 // We cannot handle the \cmidrule(l){3-4} form
 546                 p.pushPosition();
 547                 p.skip_spaces(true);
 548                 bool const hasParentheses(p.getFullArg('(', ')').first);
 549                 p.popPosition();
 550                 if (hasParentheses)
 551                         return false;
 552                 hlines += "\\cmidrule{" + p.verbatim_item() + '}';
 553         }
 554
 555         else if (t.cs() == "addlinespace") {
 556                 p.pushPosition();
 557                 p.skip_spaces(true);
 558                 bool const hasArgument(p.getFullArg('{', '}').first);
 559                 p.popPosition();
 560                 if (hasArgument)
 561                         hlines += "\\addlinespace{" + p.verbatim_item() + '}';
 562                 else
 563                         hlines += "\\addlinespace";
 564         }
 565
 566         else if (is_long_tabular && t.cs() == "newpage")
 567                 hlines += "\\newpage";
 568
 569         else
 570                 return false;
 571
 572         return true;
 573 }
 574
 575
 576 /// Position in a row
 577 enum RowPosition {
 578         /// At the very beginning, before the first token
 579         ROW_START,
 580         /// After the first token and before any column token
 581         IN_HLINES_START,
 582         /// After the first column token. Comments and whitespace are only
 583         /// treated as tokens in this position
 584         IN_COLUMNS,
 585         /// After the first non-column token at the end
 586         IN_HLINES_END
 587 };
 588
 589
 590 /*!
 591  * Parse table structure.
 592  * We parse tables in a two-pass process: This function extracts the table
 593  * structure (rows, columns, hlines etc.), but does not change the cell
 594  * content. The cell content is parsed in a second step in handle_tabular().
 595  */
 596 void parse_table(Parser & p, ostream & os, bool is_long_tabular,
 597                  RowPosition & pos, unsigned flags)
 598 {
 599         // table structure commands such as \hline
 600         string hlines;
 601
 602         // comments that occur at places where we can't handle them
 603         string comments;
 604
 605         while (p.good()) {
 606                 Token const & t = p.get_token();
 607
 608 #ifdef FILEDEBUG
 609                 debugToken(cerr, t, flags);
 610 #endif
 611
 612                 // comments and whitespace in hlines
 613                 switch (pos) {
 614                 case ROW_START:
 615                 case IN_HLINES_START:
 616                 case IN_HLINES_END:
 617                         if (t.cat() == catComment) {
 618                                 if (t.cs().empty())
 619                                         // line continuation
 620                                         p.skip_spaces();
 621                                 else
 622                                         // We can't handle comments here,
 623                                         // store them for later use
 624                                         comments += t.asInput();
 625                                 continue;
 626                         } else if (t.cat() == catSpace ||
 627                                    t.cat() == catNewline) {
 628                                 // whitespace is irrelevant here, we
 629                                 // need to recognize hline stuff
 630                                 p.skip_spaces();
 631                                 continue;
 632                         }
 633                         break;
 634                 case IN_COLUMNS:
 635                         break;
 636                 }
 637
 638                 // We need to handle structure stuff first in order to
 639                 // determine wether we need to output a HLINE separator
 640                 // before the row or not.
 641                 if (t.cat() == catEscape) {
 642                         if (parse_hlines(p, t, hlines, is_long_tabular)) {
 643                                 switch (pos) {
 644                                 case ROW_START:
 645                                         pos = IN_HLINES_START;
 646                                         break;
 647                                 case IN_COLUMNS:
 648                                         pos = IN_HLINES_END;
 649                                         break;
 650                                 case IN_HLINES_START:
 651                                 case IN_HLINES_END:
 652                                         break;
 653                                 }
 654                                 continue;
 655                         }
 656
 657                         else if (t.cs() == "tabularnewline" ||
 658                                  t.cs() == "\\" ||
 659                                  t.cs() == "cr") {
 660                                 if (t.cs() == "cr")
 661                                         cerr << "Warning: Converting TeX "
 662                                                 "'\\cr' to LaTeX '\\\\'."
 663                                              << endl;
 664                                 // stuff before the line break
 665                                 os << comments << HLINE << hlines << HLINE
 666                                    << LINE;
 667                                 //cerr << "hlines: " << hlines << endl;
 668                                 hlines.erase();
 669                                 comments.erase();
 670                                 pos = ROW_START;
 671                                 continue;
 672                         }
 673
 674                         else if (is_long_tabular &&
 675                                  (t.cs() == "endhead" ||
 676                                   t.cs() == "endfirsthead" ||
 677                                   t.cs() == "endfoot" ||
 678                                   t.cs() == "endlastfoot")) {
 679                                 hlines += t.asInput();
 680                                 switch (pos) {
 681                                 case IN_COLUMNS:
 682                                 case IN_HLINES_END:
 683                                         // these commands are implicit line
 684                                         // breaks
 685                                         os << comments << HLINE << hlines
 686                                            << HLINE << LINE;
 687                                         hlines.erase();
 688                                         comments.erase();
 689                                         pos = ROW_START;
 690                                         break;
 691                                 case ROW_START:
 692                                         pos = IN_HLINES_START;
 693                                         break;
 694                                 case IN_HLINES_START:
 695                                         break;
 696                                 }
 697                                 continue;
 698                         }
 699                 }
 700
 701                 // We need a HLINE separator if we either have no hline
 702                 // stuff at all and are just starting a row or if we just
 703                 // got the first non-hline token.
 704                 switch (pos) {
 705                 case ROW_START:
 706                         // no hline tokens exist, first token at row start
 707                 case IN_HLINES_START:
 708                         // hline tokens exist, first non-hline token at row
 709                         // start
 710                         os << hlines << HLINE << comments;
 711                         hlines.erase();
 712                         comments.erase();
 713                         pos = IN_COLUMNS;
 714                         break;
 715                 case IN_HLINES_END:
 716                         // Oops, there is still cell content or unsupported
 717                         // booktabs commands after hline stuff. The latter are
 718                         // moved to the cell, and the first does not work in
 719                         // LaTeX, so we ignore the hlines.
 720                         os << comments;
 721                         comments.erase();
 722                         if (support::contains(hlines, "\\hline") ||
 723                             support::contains(hlines, "\\cline") ||
 724                             support::contains(hlines, "\\newpage"))
 725                                 cerr << "Ignoring '" << hlines
 726                                      << "' in a cell" << endl;
 727                         else
 728                                 os << hlines;
 729                         hlines.erase();
 730                         pos = IN_COLUMNS;
 731                         break;
 732                 case IN_COLUMNS:
 733                         break;
 734                 }
 735
 736                 // If we come here we have normal cell content
 737                 //
 738                 // cat codes
 739                 //
 740                 if (t.cat() == catMath) {
 741                         // we are inside some text mode thingy, so opening new math is allowed
 742                         Token const & n = p.get_token();
 743                         if (n.cat() == catMath) {
 744                                 // TeX's $$...$$ syntax for displayed math
 745                                 os << "\\[";
 746                                 // This does only work because parse_math outputs TeX
 747                                 parse_math(p, os, FLAG_SIMPLE, MATH_MODE);
 748                                 os << "\\]";
 749                                 p.get_token(); // skip the second '$' token
 750                         } else {
 751                                 // simple $...$  stuff
 752                                 p.putback();
 753                                 os << '$';
 754                                 // This does only work because parse_math outputs TeX
 755                                 parse_math(p, os, FLAG_SIMPLE, MATH_MODE);
 756                                 os << '$';
 757                         }
 758                 }
 759
 760                 else if (t.cat() == catSpace
 761                          || t.cat() == catNewline
 762                          || t.cat() == catLetter
 763                          || t.cat() == catSuper
 764                          || t.cat() == catSub
 765                          || t.cat() == catOther
 766                          || t.cat() == catActive
 767                          || t.cat() == catParameter)
 768                         os << t.cs();
 769
 770                 else if (t.cat() == catBegin) {
 771                         os << '{';
 772                         parse_table(p, os, is_long_tabular, pos,
 773                                     FLAG_BRACE_LAST);
 774                         os << '}';
 775                 }
 776
 777                 else if (t.cat() == catEnd) {
 778                         if (flags & FLAG_BRACE_LAST)
 779                                 return;
 780                         cerr << "unexpected '}'\n";
 781                 }
 782
 783                 else if (t.cat() == catAlign) {
 784                         os << TAB;
 785                         p.skip_spaces();
 786                 }
 787
 788                 else if (t.cat() == catComment)
 789                         os << t.asInput();
 790
 791                 else if (t.cs() == "(") {
 792                         os << "\\(";
 793                         // This does only work because parse_math outputs TeX
 794                         parse_math(p, os, FLAG_SIMPLE2, MATH_MODE);
 795                         os << "\\)";
 796                 }
 797
 798                 else if (t.cs() == "[") {
 799                         os << "\\[";
 800                         // This does only work because parse_math outputs TeX
 801                         parse_math(p, os, FLAG_EQUATION, MATH_MODE);
 802                         os << "\\]";
 803                 }
 804
 805                 else if (t.cs() == "begin") {
 806                         string const name = p.getArg('{', '}');
 807                         active_environments.push_back(name);
 808                         os << "\\begin{" << name << '}';
 809                         // treat the nested environment as a block, don't
 810                         // parse &, \\ etc, because they don't belong to our
 811                         // table if they appear.
 812                         os << p.ertEnvironment(name);
 813                         os << "\\end{" << name << '}';
 814                         active_environments.pop_back();
 815                 }
 816
 817                 else if (t.cs() == "end") {
 818                         if (flags & FLAG_END) {
 819                                 // eat environment name
 820                                 string const name = p.getArg('{', '}');
 821                                 if (name != active_environment())
 822                                         p.error("\\end{" + name + "} does not match \\begin{"
 823                                                 + active_environment() + "}");
 824                                 return;
 825                         }
 826                         p.error("found 'end' unexpectedly");
 827                 }
 828
 829                 else
 830                         os << t.asInput();
 831         }
 832
 833         // We can have comments if the last line is incomplete
 834         os << comments;
 835
 836         // We can have hline stuff if the last line is incomplete
 837         if (!hlines.empty()) {
 838                 // this does not work in LaTeX, so we ignore it
 839                 cerr << "Ignoring '" << hlines << "' at end of tabular"
 840                      << endl;
 841         }
 842 }
 843
 844
 845 void handle_hline_above(RowInfo & ri, vector<CellInfo> & ci)
 846 {
 847         ri.topline = true;
 848         for (size_t col = 0; col < ci.size(); ++col)
 849                 ci[col].topline = true;
 850 }
 851
 852
 853 void handle_hline_below(RowInfo & ri, vector<CellInfo> & ci)
 854 {
 855         ri.bottomline = true;
 856         for (size_t col = 0; col < ci.size(); ++col)
 857                 ci[col].bottomline = true;
 858 }
 859
 860
 861 } // anonymous namespace
 862
 863
 864 void handle_tabular(Parser & p, ostream & os, string const & name,
 865                     string const & tabularwidth, string const & halign,
 866                     Context & context)
 867 {
 868         bool const is_long_tabular(name == "longtable" || name == "xltabular");
 869         bool booktabs = false;
 870         string tabularvalignment("middle");
 871         string posopts = p.getOpt();
 872         if (!posopts.empty()) {
 873                 if (posopts == "[t]")
 874                         tabularvalignment = "top";
 875                 else if (posopts == "[b]")
 876                         tabularvalignment = "bottom";
 877                 else
 878                         cerr << "vertical tabular positioning '"
 879                              << posopts << "' ignored\n";
 880         }
 881
 882         vector<ColInfo> colinfo;
 883
 884         // handle column formatting
 885         handle_colalign(p, colinfo, ColInfo());
 886         fix_colalign(colinfo);
 887
 888         // first scan of cells
 889         // use table mode to keep it minimal-invasive
 890         // not exactly what's TeX doing...
 891         vector<string> lines;
 892         ostringstream ss;
 893         RowPosition rowpos = ROW_START;
 894         parse_table(p, ss, is_long_tabular, rowpos, FLAG_END);
 895         split(ss.str(), lines, LINE);
 896
 897         vector< vector<CellInfo> > cellinfo(lines.size());
 898         vector<RowInfo> rowinfo(lines.size());
 899         ltType endfirsthead;
 900         ltType endhead;
 901         ltType endfoot;
 902         ltType endlastfoot;
 903
 904         // split into rows
 905         //cerr << "// split into rows\n";
 906         for (size_t row = 0; row < rowinfo.size();) {
 907
 908                 // init row
 909                 cellinfo[row].resize(colinfo.size());
 910                 bool deletelastrow = false;
 911
 912                 // split row
 913                 vector<string> dummy;
 914                 //cerr << "\n########### LINE: " << lines[row] << "########\n";
 915                 split(lines[row], dummy, HLINE);
 916
 917                 // handle horizontal line fragments
 918                 // we do only expect this for a last line without '\\'
 919                 if (dummy.size() != 3) {
 920                         if ((dummy.size() != 1 && dummy.size() != 2) ||
 921                             row != rowinfo.size() - 1)
 922                                 cerr << "unexpected dummy size: " << dummy.size()
 923                                         << " content: " << lines[row] << "\n";
 924                         dummy.resize(3);
 925                 }
 926                 lines[row] = dummy[1];
 927
 928                 //cerr << "line: " << row << " above 0: " << dummy[0] << "\n";
 929                 //cerr << "line: " << row << " below 2: " << dummy[2] <<  "\n";
 930                 //cerr << "line: " << row << " cells 1: " << dummy[1] <<  "\n";
 931
 932                 for (int i = 0; i <= 2; i += 2) {
 933                         //cerr << "   reading from line string '" << dummy[i] << "'\n";
 934                         Parser p1(dummy[i]);
 935                         while (p1.good()) {
 936                                 Token t = p1.get_token();
 937                                 //cerr << "read token: " << t << "\n";
 938                                 if (t.cs() == "hline" || t.cs() == "toprule" ||
 939                                     t.cs() == "midrule" ||
 940                                     t.cs() == "bottomrule") {
 941                                         if (t.cs() != "hline")
 942                                                 booktabs = true;
 943                                         if (i == 0) {
 944                                                 if (rowinfo[row].topline) {
 945                                                         if (row > 0) // extra bottomline above
 946                                                                 handle_hline_below(rowinfo[row - 1], cellinfo[row - 1]);
 947                                                         else
 948                                                                 cerr << "dropping extra "
 949                                                                      << t.cs() << '\n';
 950                                                         //cerr << "below row: " << row-1 << endl;
 951                                                 } else {
 952                                                         handle_hline_above(rowinfo[row], cellinfo[row]);
 953                                                         //cerr << "above row: " << row << endl;
 954                                                 }
 955                                         } else {
 956                                                 //cerr << "below row: " << row << endl;
 957                                                 handle_hline_below(rowinfo[row], cellinfo[row]);
 958                                         }
 959                                 } else if (t.cs() == "cline" || t.cs() == "cmidrule") {
 960                                         if (t.cs() == "cmidrule")
 961                                                 booktabs = true;
 962                                         string arg = p1.verbatim_item();
 963                                         //cerr << "read " << t.cs() << " arg: '" << arg << "'\n";
 964                                         vector<string> cols;
 965                                         split(arg, cols, '-');
 966                                         cols.resize(2);
 967                                         size_t from = convert<unsigned int>(cols[0]);
 968                                         if (from == 0)
 969                                                 cerr << "Could not parse "
 970                                                      << t.cs() << " start column."
 971                                                      << endl;
 972                                         else
 973                                                 // 1 based index -> 0 based
 974                                                 --from;
 975                                         if (from >= colinfo.size()) {
 976                                                 cerr << t.cs() << " starts at "
 977                                                         "non existing column "
 978                                                      << (from + 1) << endl;
 979                                                 from = colinfo.size() - 1;
 980                                         }
 981                                         size_t to = convert<unsigned int>(cols[1]);
 982                                         if (to == 0)
 983                                                 cerr << "Could not parse "
 984                                                      << t.cs() << " end column."
 985                                                      << endl;
 986                                         else
 987                                                 // 1 based index -> 0 based
 988                                                 --to;
 989                                         if (to >= colinfo.size()) {
 990                                                 cerr << t.cs() << " ends at "
 991                                                         "non existing column "
 992                                                      << (to + 1) << endl;
 993                                                 to = colinfo.size() - 1;
 994                                         }
 995                                         for (size_t col = from; col <= to; ++col) {
 996                                                 //cerr << "row: " << row << " col: " << col << " i: " << i << endl;
 997                                                 if (i == 0) {
 998                                                         rowinfo[row].topline = true;
 999                                                         cellinfo[row][col].topline = true;
1000                                                 } else {
1001                                                         rowinfo[row].bottomline = true;
1002                                                         cellinfo[row][col].bottomline = true;
1003                                                 }
1004                                         }
1005                                 } else if (t.cs() == "addlinespace") {
1006                                         booktabs = true;
1007                                         string const opt = p.next_token().cat() == catBegin ?
1008                                                         p.verbatim_item() : string();
1009                                         if (i == 0) {
1010                                                 if (opt.empty())
1011                                                         rowinfo[row].top_space = "default";
1012                                                 else
1013                                                         rowinfo[row].top_space = translate_len(opt);
1014                                         } else if (rowinfo[row].bottomline) {
1015                                                 if (opt.empty())
1016                                                         rowinfo[row].bottom_space = "default";
1017                                                 else
1018                                                         rowinfo[row].bottom_space = translate_len(opt);
1019                                         } else {
1020                                                 if (opt.empty())
1021                                                         rowinfo[row].interline_space = "default";
1022                                                 else
1023                                                         rowinfo[row].interline_space = translate_len(opt);
1024                                         }
1025                                 } else if (t.cs() == "endhead") {
1026                                         if (i == 0)
1027                                                 endhead.empty = true;
1028                                         else
1029                                                 rowinfo[row].type = LT_HEAD;
1030                                         for (int r = row - 1; r >= 0; --r) {
1031                                                 if (rowinfo[r].type != LT_NORMAL)
1032                                                         break;
1033                                                 rowinfo[r].type = LT_HEAD;
1034                                                 endhead.empty = false;
1035                                         }
1036                                         endhead.set = true;
1037                                 } else if (t.cs() == "endfirsthead") {
1038                                         if (i == 0)
1039                                                 endfirsthead.empty = true;
1040                                         else
1041                                                 rowinfo[row].type = LT_FIRSTHEAD;
1042                                         for (int r = row - 1; r >= 0; --r) {
1043                                                 if (rowinfo[r].type != LT_NORMAL)
1044                                                         break;
1045                                                 rowinfo[r].type = LT_FIRSTHEAD;
1046                                                 endfirsthead.empty = false;
1047                                         }
1048                                         endfirsthead.set = true;
1049                                 } else if (t.cs() == "endfoot") {
1050                                         if (i == 0)
1051                                                 endfoot.empty = true;
1052                                         else
1053                                                 rowinfo[row].type = LT_FOOT;
1054                                         for (int r = row - 1; r >= 0; --r) {
1055                                                 if (rowinfo[r].type != LT_NORMAL)
1056                                                         break;
1057                                                 rowinfo[r].type = LT_FOOT;
1058                                                 endfoot.empty = false;
1059                                         }
1060                                         endfoot.set = true;
1061                                 } else if (t.cs() == "endlastfoot") {
1062                                         if (i == 0)
1063                                                 endlastfoot.empty = true;
1064                                         else
1065                                                 rowinfo[row].type = LT_LASTFOOT;
1066                                         for (int r = row - 1; r >= 0; --r) {
1067                                                 if (rowinfo[r].type != LT_NORMAL)
1068                                                         break;
1069                                                 rowinfo[r].type = LT_LASTFOOT;
1070                                                 endlastfoot.empty = false;
1071                                         }
1072                                         endlastfoot.set = true;
1073                                 } else if (t.cs() == "newpage") {
1074                                         if (i == 0) {
1075                                                 if (row > 0)
1076                                                         rowinfo[row - 1].newpage = true;
1077                                                 else
1078                                                         // This does not work in LaTeX
1079                                                         cerr << "Ignoring "
1080                                                                 "'\\newpage' "
1081                                                                 "before rows."
1082                                                              << endl;
1083                                         } else
1084                                                 rowinfo[row].newpage = true;
1085                                 } else {
1086                                         cerr << "unexpected line token: " << t << endl;
1087                                 }
1088                         }
1089                 }
1090
1091                 // LyX ends headers and footers always with \tabularnewline.
1092                 // This causes one additional row in the output.
1093                 // If the last row of a header/footer is empty, we can work
1094                 // around that by removing it.
1095                 if (row > 1) {
1096                         RowInfo test = rowinfo[row-1];
1097                         test.type = LT_NORMAL;
1098                         if (lines[row-1].empty() && !test.special()) {
1099                                 switch (rowinfo[row-1].type) {
1100                                 case LT_FIRSTHEAD:
1101                                         if (rowinfo[row].type != LT_FIRSTHEAD &&
1102                                             rowinfo[row-2].type == LT_FIRSTHEAD)
1103                                                 deletelastrow = true;
1104                                         break;
1105                                 case LT_HEAD:
1106                                         if (rowinfo[row].type != LT_HEAD &&
1107                                             rowinfo[row-2].type == LT_HEAD)
1108                                                 deletelastrow = true;
1109                                         break;
1110                                 case LT_FOOT:
1111                                         if (rowinfo[row].type != LT_FOOT &&
1112                                             rowinfo[row-2].type == LT_FOOT)
1113                                                 deletelastrow = true;
1114                                         break;
1115                                 case LT_LASTFOOT:
1116                                         if (rowinfo[row].type != LT_LASTFOOT &&
1117                                             rowinfo[row-2].type == LT_LASTFOOT)
1118                                                 deletelastrow = true;
1119                                         break;
1120                                 case LT_NORMAL:
1121                                         break;
1122                                 }
1123                         }
1124                 }
1125
1126                 if (deletelastrow) {
1127                         lines.erase(lines.begin() + (row - 1));
1128                         rowinfo.erase(rowinfo.begin() + (row - 1));
1129                         cellinfo.erase(cellinfo.begin() + (row - 1));
1130                         continue;
1131                 }
1132
1133                 // split into cells
1134                 vector<string> cells;
1135                 split(lines[row], cells, TAB);
1136                 for (size_t col = 0, cell = 0; cell < cells.size();
1137                      ++col, ++cell) {
1138                         //cerr << "cell content: '" << cells[cell] << "'\n";
1139                         if (col >= colinfo.size()) {
1140                                 // This does not work in LaTeX
1141                                 cerr << "Ignoring extra cell '"
1142                                      << cells[cell] << "'." << endl;
1143                                 continue;
1144                         }
1145                         Parser parse(cells[cell]);
1146                         parse.skip_spaces();
1147                         //cells[cell] << "'\n";
1148                         if (parse.next_token().cs() == "multirow") {
1149                                 // We do not support the vpos arg yet.
1150                                 if (parse.hasOpt()) {
1151                                         string const vpos = parse.getArg('[', ']');
1152                                         parse.skip_spaces(true);
1153                                         cerr << "Ignoring multirow's vpos arg '"
1154                                              << vpos << "'!" << endl;
1155                                 }
1156                                 // how many cells?
1157                                 parse.get_token();
1158                                 size_t const ncells =
1159                                         convert<unsigned int>(parse.verbatim_item());
1160                                 // We do not support the bigstrut arg yet.
1161                                 if (parse.hasOpt()) {
1162                                         string const bs = parse.getArg('[', ']');
1163                                         parse.skip_spaces(true);
1164                                         cerr << "Ignoring multirow's bigstrut arg '"
1165                                              << bs << "'!" << endl;
1166                                 }
1167                                 // the width argument
1168                                 string const width = parse.getArg('{', '}');
1169                                 // the vmove arg
1170                                 string vmove;
1171                                 if (parse.hasOpt()) {
1172                                         vmove = parse.getArg('[', ']');
1173                                         parse.skip_spaces(true);
1174                                 }
1175
1176                                 if (width != "*")
1177                                         colinfo[col].width = width;
1178                                 if (!vmove.empty())
1179                                         cellinfo[row][col].mroffset = vmove;
1180                                 cellinfo[row][col].multi = CELL_BEGIN_OF_MULTIROW;
1181                                 cellinfo[row][col].leftlines  = colinfo[col].leftlines;
1182                                 cellinfo[row][col].rightlines = colinfo[col].rightlines;
1183                                 cellinfo[row][col].mrxnum = ncells - 1;
1184
1185                                 ostringstream os2;
1186                                 parse_text_in_inset(parse, os2, FLAG_ITEM, false, context);
1187                                 if (!cellinfo[row][col].content.empty()) {
1188                                         // This may or may not work in LaTeX,
1189                                         // but it does not work in LyX.
1190                                         // FIXME: Handle it correctly!
1191                                         cerr << "Moving cell content '"
1192                                              << cells[cell]
1193                                              << "' into a multirow cell. "
1194                                                 "This will probably not work."
1195                                              << endl;
1196                                 }
1197                                 cellinfo[row][col].content += os2.str();
1198                         } else if (parse.next_token().cs() == "multicolumn") {
1199                                 // how many cells?
1200                                 parse.get_token();
1201                                 size_t const ncells =
1202                                         convert<unsigned int>(parse.verbatim_item());
1203
1204                                 // special cell properties alignment
1205                                 vector<ColInfo> t;
1206                                 handle_colalign(parse, t, ColInfo());
1207                                 parse.skip_spaces(true);
1208                                 ColInfo & ci = t.front();
1209
1210                                 // The logic of LyX for multicolumn vertical
1211                                 // lines is too complicated to reproduce it
1212                                 // here (see LyXTabular::TeXCellPreamble()).
1213                                 // Therefore we simply put everything in the
1214                                 // special field.
1215                                 ci2special(ci);
1216
1217                                 cellinfo[row][col].multi      = CELL_BEGIN_OF_MULTICOLUMN;
1218                                 cellinfo[row][col].align      = ci.align;
1219                                 cellinfo[row][col].special    = ci.special;
1220                                 cellinfo[row][col].leftlines  = ci.leftlines;
1221                                 cellinfo[row][col].rightlines = ci.rightlines;
1222                                 ostringstream os2;
1223                                 parse_text_in_inset(parse, os2, FLAG_ITEM, false, context);
1224                                 if (!cellinfo[row][col].content.empty()) {
1225                                         // This may or may not work in LaTeX,
1226                                         // but it does not work in LyX.
1227                                         // FIXME: Handle it correctly!
1228                                         cerr << "Moving cell content '"
1229                                              << cells[cell]
1230                                              << "' into a multicolumn cell. "
1231                                                 "This will probably not work."
1232                                              << endl;
1233                                 }
1234                                 cellinfo[row][col].content += os2.str();
1235
1236                                 // add dummy cells for multicol
1237                                 for (size_t i = 0; i < ncells - 1; ++i) {
1238                                         ++col;
1239                                         if (col >= colinfo.size()) {
1240                                                 cerr << "The cell '"
1241                                                         << cells[cell]
1242                                                         << "' specifies "
1243                                                         << convert<string>(ncells)
1244                                                         << " columns while the table has only "
1245                                                         << convert<string>(colinfo.size())
1246                                                         << " columns!"
1247                                                         << " Therefore the surplus columns will be ignored."
1248                                                         << endl;
1249                                                 break;
1250                                         }
1251                                         cellinfo[row][col].multi = CELL_PART_OF_MULTICOLUMN;
1252                                         cellinfo[row][col].align = 'c';
1253                                 }
1254
1255                         } else if (col == 0 && colinfo.size() > 1 &&
1256                                    is_long_tabular &&
1257                                    parse.next_token().cs() == "caption") {
1258                                 // longtable caption support in LyX is a hack:
1259                                 // Captions require a row of their own with
1260                                 // the caption flag set to true, having only
1261                                 // one multicolumn cell. The contents of that
1262                                 // cell must contain exactly one caption inset
1263                                 // and nothing else.
1264                                 // Fortunately, the caption flag is only needed
1265                                 // for tables with more than one column.
1266                                 rowinfo[row].caption = true;
1267                                 for (size_t c = 1; c < cells.size(); ++c) {
1268                                         if (!cells[c].empty()) {
1269                                                 cerr << "Moving cell content '"
1270                                                      << cells[c]
1271                                                      << "' into the caption cell. "
1272                                                         "This will probably not work."
1273                                                      << endl;
1274                                                 cells[0] += cells[c];
1275                                         }
1276                                 }
1277                                 cells.resize(1);
1278                                 cellinfo[row][col].align      = colinfo[col].align;
1279                                 cellinfo[row][col].multi      = CELL_BEGIN_OF_MULTICOLUMN;
1280                                 ostringstream os2;
1281                                 parse_text_in_inset(parse, os2, FLAG_CELL, false, context);
1282                                 cellinfo[row][col].content += os2.str();
1283                                 // add dummy multicolumn cells
1284                                 for (size_t c = 1; c < colinfo.size(); ++c)
1285                                         cellinfo[row][c].multi = CELL_PART_OF_MULTICOLUMN;
1286                         } else {
1287                                 bool turn = false;
1288                                 int rotate = 0;
1289                                 if (parse.next_token().cs() == "begin") {
1290                                         parse.pushPosition();
1291                                         parse.get_token();
1292                                         string const env = parse.getArg('{', '}');
1293                                         if (env == "sideways" || env == "turn") {
1294                                                 string angle = "90";
1295                                                 if (env == "turn") {
1296                                                         turn = true;
1297                                                         angle = parse.getArg('{', '}');
1298                                                 }
1299                                                 active_environments.push_back(env);
1300                                                 parse.ertEnvironment(env);
1301                                                 active_environments.pop_back();
1302                                                 parse.skip_spaces();
1303                                                 if (!parse.good() && support::isStrInt(angle))
1304                                                         rotate = convert<int>(angle);
1305                                         }
1306                                         parse.popPosition();
1307                                 }
1308                                 cellinfo[row][col].leftlines  = colinfo[col].leftlines;
1309                                 cellinfo[row][col].rightlines = colinfo[col].rightlines;
1310                                 cellinfo[row][col].align      = colinfo[col].align;
1311                                 ostringstream os2;
1312                                 if (rotate != 0) {
1313                                         cellinfo[row][col].rotate = rotate;
1314                                         parse.get_token();
1315                                         active_environments.push_back(parse.getArg('{', '}'));
1316                                         if (turn)
1317                                                 parse.getArg('{', '}');
1318                                         parse_text_in_inset(parse, os2, FLAG_END, false, context);
1319                                         active_environments.pop_back();
1320                                         preamble.registerAutomaticallyLoadedPackage("rotating");
1321                                 } else {
1322                                         parse_text_in_inset(parse, os2, FLAG_CELL, false, context);
1323                                 }
1324                                 cellinfo[row][col].content += os2.str();
1325                         }
1326                 }
1327
1328                 //cerr << "//  handle almost empty last row what we have\n";
1329                 // handle almost empty last row
1330                 if (row && lines[row].empty() && row + 1 == rowinfo.size()) {
1331                         //cerr << "remove empty last line\n";
1332                         if (rowinfo[row].topline)
1333                                 rowinfo[row - 1].bottomline = true;
1334                         for (size_t col = 0; col < colinfo.size(); ++col)
1335                                 if (cellinfo[row][col].topline)
1336                                         cellinfo[row - 1][col].bottomline = true;
1337                         rowinfo.pop_back();
1338                 }
1339
1340                 ++row;
1341         }
1342
1343         // Now we have the table structure and content in rowinfo, colinfo
1344         // and cellinfo.
1345         // Unfortunately LyX has some limitations that we need to work around.
1346
1347         // Some post work
1348         for (size_t row = 0; row < rowinfo.size(); ++row) {
1349                 for (size_t col = 0; col < cellinfo[row].size(); ++col) {
1350                         // Convert cells with special content to multicolumn cells
1351                         // (LyX ignores the special field for non-multicolumn cells).
1352                         if (cellinfo[row][col].multi == CELL_NORMAL &&
1353                             !cellinfo[row][col].special.empty())
1354                                 cellinfo[row][col].multi = CELL_BEGIN_OF_MULTICOLUMN;
1355                         // Add multirow dummy cells
1356                         if (row > 1 && (cellinfo[row - 1][col].multi == CELL_PART_OF_MULTIROW
1357                                         || cellinfo[row - 1][col].multi == CELL_BEGIN_OF_MULTIROW)
1358                                     && cellinfo[row - 1][col].mrxnum > 0) {
1359                                 // add dummy cells for multirow
1360                                 cellinfo[row][col].multi = CELL_PART_OF_MULTIROW;
1361                                 cellinfo[row][col].align = 'c';
1362                                 cellinfo[row][col].mrxnum = cellinfo[row - 1][col].mrxnum - 1;
1363                         }
1364                 }
1365         }
1366
1367         // Distribute lines from rows/columns to cells
1368         // The code was stolen from convert_tablines() in lyx2lyx/lyx_1_6.py.
1369         // Each standard cell inherits the settings of the corresponding
1370         // rowinfo/colinfo. This works because all cells with individual
1371         // settings were converted to multicolumn cells above.
1372         // Each multicolumn cell inherits the settings of the rowinfo/colinfo
1373         // corresponding to the first column of the multicolumn cell (default
1374         // of the multicol package). This works because the special field
1375         // overrides the line fields.
1376         for (size_t row = 0; row < rowinfo.size(); ++row) {
1377                 for (size_t col = 0; col < cellinfo[row].size(); ++col) {
1378                         if (cellinfo[row][col].multi == CELL_NORMAL) {
1379                                 cellinfo[row][col].topline = rowinfo[row].topline;
1380                                 cellinfo[row][col].bottomline = rowinfo[row].bottomline;
1381                                 cellinfo[row][col].leftlines = colinfo[col].leftlines;
1382                                 cellinfo[row][col].rightlines = colinfo[col].rightlines;
1383                         } else if (cellinfo[row][col].multi == CELL_BEGIN_OF_MULTICOLUMN) {
1384                                 size_t s = col + 1;
1385                                 while (s < cellinfo[row].size() &&
1386                                        cellinfo[row][s].multi == CELL_PART_OF_MULTICOLUMN)
1387                                         s++;
1388                                 if (s < cellinfo[row].size() &&
1389                                     cellinfo[row][s].multi != CELL_BEGIN_OF_MULTICOLUMN)
1390                                         cellinfo[row][col].rightlines = colinfo[col].rightlines;
1391                                 if (col > 0 && cellinfo[row][col-1].multi == CELL_NORMAL)
1392                                         cellinfo[row][col].leftlines = colinfo[col].leftlines;
1393                         } else if (cellinfo[row][col].multi == CELL_BEGIN_OF_MULTIROW) {
1394                                 size_t s = row + 1;
1395                                 while (s < rowinfo.size() &&
1396                                        cellinfo[s][col].multi == CELL_PART_OF_MULTIROW)
1397                                         s++;
1398                                 if (s < cellinfo[row].size() &&
1399                                     cellinfo[s][col].multi != CELL_BEGIN_OF_MULTIROW)
1400                                         cellinfo[row][col].bottomline = rowinfo[row].bottomline;
1401                                 if (row > 0 && cellinfo[row - 1][col].multi == CELL_NORMAL)
1402                                         cellinfo[row][col].topline = rowinfo[row].topline;
1403                         }
1404                 }
1405         }
1406
1407         if (booktabs)
1408                 preamble.registerAutomaticallyLoadedPackage("booktabs");
1409         if (name == "longtable")
1410                 preamble.registerAutomaticallyLoadedPackage("longtable");
1411         else if (name == "xltabular")
1412                 preamble.registerAutomaticallyLoadedPackage("xltabular");
1413         else if (name == "tabularx")
1414                 preamble.registerAutomaticallyLoadedPackage("tabularx");
1415
1416         //cerr << "// output what we have\n";
1417         // output what we have
1418         string const rotate = "0";
1419         os << "\n<lyxtabular version=\"3\" rows=\"" << rowinfo.size()
1420            << "\" columns=\"" << colinfo.size() << "\">\n";
1421         os << "<features"
1422            << write_attribute("rotate", rotate)
1423            << write_attribute("booktabs", booktabs)
1424            << write_attribute("islongtable", is_long_tabular);
1425         if (is_long_tabular) {
1426                 os << write_attribute("firstHeadTopDL", endfirsthead.topDL)
1427                    << write_attribute("firstHeadBottomDL", endfirsthead.bottomDL)
1428                    << write_attribute("firstHeadEmpty", endfirsthead.empty)
1429                    << write_attribute("headTopDL", endhead.topDL)
1430                    << write_attribute("headBottomDL", endhead.bottomDL)
1431                    << write_attribute("footTopDL", endfoot.topDL)
1432                    << write_attribute("footBottomDL", endfoot.bottomDL)
1433                    << write_attribute("lastFootTopDL", endlastfoot.topDL)
1434                    << write_attribute("lastFootBottomDL", endlastfoot.bottomDL)
1435                    << write_attribute("lastFootEmpty", endlastfoot.empty);
1436                 if (!halign.empty())
1437                         os << write_attribute("longtabularalignment", halign);
1438         } else
1439                 os << write_attribute("tabularvalignment", tabularvalignment);
1440
1441         os << write_attribute("tabularwidth", tabularwidth) << ">\n";
1442
1443         //cerr << "// after header\n";
1444         for (size_t col = 0; col < colinfo.size(); ++col) {
1445                 os << "<column alignment=\""
1446                    << verbose_align(colinfo[col].align) << "\""
1447                    << " valignment=\""
1448                    << verbose_valign(colinfo[col].valign) << "\""
1449                    << write_attribute("width", translate_len(colinfo[col].width))
1450                    << write_attribute("special", colinfo[col].special)
1451                    << write_attribute("varwidth", colinfo[col].varwidth)
1452                    << ">\n";
1453         }
1454         //cerr << "// after cols\n";
1455
1456         for (size_t row = 0; row < rowinfo.size(); ++row) {
1457                 os << "<row"
1458                    << write_attribute("topspace", rowinfo[row].top_space)
1459                    << write_attribute("bottomspace", rowinfo[row].bottom_space)
1460                    << write_attribute("interlinespace", rowinfo[row].interline_space)
1461                    << write_attribute("endhead",
1462                                       rowinfo[row].type == LT_HEAD)
1463                    << write_attribute("endfirsthead",
1464                                       rowinfo[row].type == LT_FIRSTHEAD)
1465                    << write_attribute("endfoot",
1466                                       rowinfo[row].type == LT_FOOT)
1467                    << write_attribute("endlastfoot",
1468                                       rowinfo[row].type == LT_LASTFOOT)
1469                    << write_attribute("newpage", rowinfo[row].newpage)
1470                    << write_attribute("caption", rowinfo[row].caption)
1471                    << ">\n";
1472                 for (size_t col = 0; col < colinfo.size(); ++col) {
1473                         CellInfo const & cell = cellinfo[row][col];
1474                         os << "<cell";
1475                         if (cell.multi == CELL_BEGIN_OF_MULTICOLUMN
1476                             || cell.multi == CELL_PART_OF_MULTICOLUMN)
1477                                 os << " multicolumn=\"" << cell.multi << "\"";
1478                         if (cell.multi == CELL_BEGIN_OF_MULTIROW
1479                             || cell.multi == CELL_PART_OF_MULTIROW)
1480                                 os << " multirow=\"" << cell.multi << "\"";
1481                         os << " alignment=\"" << verbose_align(cell.align)
1482                            << "\""
1483                            << " valignment=\"" << verbose_valign(cell.valign)
1484                            << "\""
1485                            << write_attribute("topline", cell.topline)
1486                            << write_attribute("bottomline", cell.bottomline)
1487                            << write_attribute("leftline", cell.leftlines > 0)
1488                            << write_attribute("rightline", cell.rightlines > 0)
1489                            << write_attribute("rotate", cell.rotate)
1490                            << write_attribute("mroffset", cell.mroffset);
1491                         //cerr << "\nrow: " << row << " col: " << col;
1492                         //if (cell.topline)
1493                         //      cerr << " topline=\"true\"";
1494                         //if (cell.bottomline)
1495                         //      cerr << " bottomline=\"true\"";
1496                         os << " usebox=\"none\""
1497                            << write_attribute("width", translate_len(cell.width));
1498                         if (cell.multi != CELL_NORMAL)
1499                                 os << write_attribute("special", cell.special);
1500                         os << ">"
1501                            << "\n\\begin_inset Text\n"
1502                            << cell.content
1503                            << "\n\\end_inset\n"
1504                            << "</cell>\n";
1505                 }
1506                 os << "</row>\n";
1507         }
1508
1509         os << "</lyxtabular>\n";
1510 }
1511
1512
1513
1514
1515 // }])
1516
1517
1518 } // namespace lyx