src/tex2lyx/table.C

   1 /**
   2  * \file table.C
   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 <cctype>
  20 #include <fstream>
  21 #include <iostream>
  22 #include <sstream>
  23 #include <vector>
  24 #include <map>
  25
  26 using std::cerr;
  27 using std::endl;
  28 using std::istringstream;
  29 using std::ostream;
  30 using std::ostringstream;
  31 using std::string;
  32 using std::vector;
  33
  34
  35 // filled in preamble.C
  36 std::map<char, int> special_columns;
  37
  38
  39 namespace {
  40
  41 struct ColInfo
  42 {
  43         ColInfo() : align('c'), rightline(false), leftline(false) {}
  44         /// column alignment
  45         char align;
  46         /// column width
  47         string width;
  48         /// special column alignment
  49         string special;
  50         /// how many lines on the right?
  51         int rightline;
  52         /// a line on the left?
  53         bool leftline;
  54 };
  55
  56
  57 /// row type for longtables
  58 enum LTRowType
  59 {
  60         /// normal row
  61         LT_NORMAL,
  62         /// part of head
  63         LT_HEAD,
  64         /// part of head on first page
  65         LT_FIRSTHEAD,
  66         /// part of foot
  67         LT_FOOT,
  68         /// part of foot on last page
  69         LT_LASTFOOT
  70 };
  71
  72
  73 struct RowInfo
  74 {
  75         RowInfo() : topline(false), bottomline(false), type(LT_NORMAL),
  76                     newpage(false) {}
  77         /// horizontal line above
  78         bool topline;
  79         /// horizontal line below
  80         bool bottomline;
  81         /// These are for longtabulars only
  82         /// row type (head, foot, firsthead etc.)
  83         LTRowType type;
  84         /// row for a pagebreak
  85         bool newpage;
  86 };
  87
  88
  89 struct CellInfo
  90 {
  91         CellInfo() : multi(0), align('n'), leftline(false), rightline(false),
  92                      topline(false), bottomline(false) {}
  93         /// cell content
  94         string content;
  95         /// multicolumn flag
  96         int multi;
  97         /// cell alignment
  98         char align;
  99         /// do we have a line on the left?
 100         bool leftline;
 101         /// do we have a line on the right?
 102         bool rightline;
 103         /// do we have a line above?
 104         bool topline;
 105         /// do we have a line below?
 106         bool bottomline;
 107 };
 108
 109
 110 /// translate a horizontal alignment (as stored in ColInfo and CellInfo) to LyX
 111 inline char const * verbose_align(char c)
 112 {
 113         return c == 'c' ? "center" : c == 'r' ? "right" : c == 'l' ? "left" : "none";
 114 }
 115
 116
 117 // stripped down from tabluar.C. We use it currently only for bools and
 118 // strings
 119 string const write_attribute(string const & name, bool const & b)
 120 {
 121         // we write only true attribute values so we remove a bit of the
 122         // file format bloat for tabulars.
 123         return b ? ' ' + name + "=\"true\"" : string();
 124 }
 125
 126
 127 string const write_attribute(string const & name, string const & s)
 128 {
 129         return s.empty() ? string() : ' ' + name + "=\"" + s + '"';
 130 }
 131
 132
 133 int string2int(string const & s, int deflt = 0)
 134 {
 135         istringstream is(s);
 136         int i = deflt;
 137         is >> i;
 138         return i;
 139 }
 140
 141
 142 /* rather brutish way to code table structure in a string:
 143
 144   \begin{tabular}{ccc}
 145     1 & 2 & 3\\ \hline
 146     \multicolumn{2}{c}{4} & 5 //
 147     6 & 7 \\
 148   \end{tabular}
 149
 150  gets "translated" to:
 151
 152          HLINE 1 TAB 2               TAB 3 HLINE HLINE LINE
 153   \hline HLINE \multicolumn{2}{c}{4} TAB 5 HLINE HLINE LINE
 154          HLINE 6 TAB 7                     HLINE HLINE LINE
 155 */
 156
 157 char const TAB   = '\001';
 158 char const LINE  = '\002';
 159 char const HLINE = '\004';
 160
 161
 162 /// handle column specifications for tabulars and multicolumns
 163 void handle_colalign(Parser & p, vector<ColInfo> & colinfo)
 164 {
 165         if (p.get_token().cat() != catBegin)
 166                 cerr << "wrong syntax for table column alignment. '{' expected\n";
 167
 168         char nextalign = 'b';
 169         bool leftline = false;
 170         for (Token t=p.get_token(); p.good() && t.cat() != catEnd; t = p.get_token()){
 171 #ifdef FILEDEBUG
 172                 cerr << "t: " << t << "  c: '" << t.character() << "'\n";
 173 #endif
 174
 175                 // We cannot handle comments here
 176                 if (t.cat() == catComment) {
 177                         if (t.cs().empty()) {
 178                                 // "%\n" combination
 179                                 p.skip_spaces();
 180                         } else
 181                                 cerr << "Ignoring comment: " << t.asInput();
 182                         continue;
 183                 }
 184
 185                 switch (t.character()) {
 186                         case 'c':
 187                         case 'l':
 188                         case 'r': {
 189                                 ColInfo ci;
 190                                 ci.align = t.character();
 191                                 if (colinfo.size() && colinfo.back().rightline > 1) {
 192                                         ci.leftline = true;
 193                                         --colinfo.back().rightline;
 194                                 }
 195                                 colinfo.push_back(ci);
 196                                 break;
 197                         }
 198                         case 'p':
 199                                 colinfo.push_back(ColInfo());
 200                                 colinfo.back().align = nextalign;
 201                                 colinfo.back().width = p.verbatim_item();
 202                                 nextalign = 'b';
 203                                 break;
 204                         case '|':
 205                                 if (colinfo.empty())
 206                                         leftline = true;
 207                                 else
 208                                         ++colinfo.back().rightline;
 209                                 break;
 210                         case '>': {
 211                                 string s = p.verbatim_item();
 212                                 if (s == "\\raggedleft ")
 213                                         nextalign = 'l';
 214                                 else if (s == "\\raggedright ")
 215                                         nextalign = 'r';
 216                                 else
 217                                         cerr << "unknown '>' column '" << s << "'\n";
 218                                 break;
 219                         }
 220                         default:
 221                                 if (special_columns.find(t.character()) != special_columns.end()) {
 222                                         ColInfo ci;
 223                                         ci.align = 'c';
 224                                         ci.special += t.character();
 225                                         int const nargs = special_columns[t.character()];
 226                                         for (int i = 0; i < nargs; ++i)
 227                                                 ci.special += "{" + p.verbatim_item() + "}";
 228                                         //cerr << "handling special column '" << t << "' " << nargs
 229                                         //      << "  '" << ci.special << "'\n";
 230                                         colinfo.push_back(ci);
 231                                 } else {
 232                                         cerr << "ignoring special separator '" << t << "'\n";
 233                                 }
 234                                 break;
 235                         }
 236         }
 237         if (colinfo.size() && leftline)
 238                 colinfo[0].leftline = true;
 239 }
 240
 241
 242 /*!
 243  * Parse hlines and similar stuff.
 244  * \returns wether the token \p t was parsed
 245  */
 246 bool parse_hlines(Parser & p, Token const & t, string & hlines,
 247                   bool is_long_tabular)
 248 {
 249         BOOST_ASSERT(t.cat() == catEscape);
 250
 251         if (t.cs() == "hline")
 252                 hlines += "\\hline";
 253
 254         else if (t.cs() == "cline")
 255                 hlines += "\\cline{" + p.verbatim_item() + '}';
 256
 257         else if (is_long_tabular && t.cs() == "newpage")
 258                 hlines += "\\newpage";
 259
 260         else
 261                 return false;
 262
 263         return true;
 264 }
 265
 266
 267 /// Position in a row
 268 enum RowPosition {
 269         /// At the very beginning, before the first token
 270         ROW_START,
 271         /// After the first token and before any column token
 272         IN_HLINES_START,
 273         /// After the first column token. Comments and whitespace are only
 274         /// treated as tokens in this position
 275         IN_COLUMNS,
 276         /// After the first non-column token at the end
 277         IN_HLINES_END
 278 };
 279
 280
 281 /*!
 282  * Parse table structure.
 283  * We parse tables in a two-pass process: This function extracts the table
 284  * structure (rows, columns, hlines etc.), but does not change the cell
 285  * content. The cell content is parsed in a second step in handle_tabular().
 286  */
 287 void parse_table(Parser & p, ostream & os, bool is_long_tabular,
 288                  RowPosition & pos, unsigned flags)
 289 {
 290         // table structure commands such as \hline
 291         string hlines;
 292
 293         // comments that occur at places where we can't handle them
 294         string comments;
 295
 296         while (p.good()) {
 297                 Token const & t = p.get_token();
 298
 299 #ifdef FILEDEBUG
 300                 cerr << "t: " << t << " flags: " << flags << "\n";
 301 #endif
 302
 303                 // comments and whitespace in hlines
 304                 switch (pos) {
 305                 case ROW_START:
 306                 case IN_HLINES_START:
 307                 case IN_HLINES_END:
 308                         if (t.cat() == catComment) {
 309                                 if (t.cs().empty())
 310                                         // line continuation
 311                                         p.skip_spaces();
 312                                 else
 313                                         // We can't handle comments here,
 314                                         // store them for later use
 315                                         comments += t.asInput();
 316                                 continue;
 317                         } else if (t.cat() == catSpace ||
 318                                    t.cat() == catNewline) {
 319                                 // whitespace is irrelevant here, we
 320                                 // need to recognize hline stuff
 321                                 p.skip_spaces();
 322                                 continue;
 323                         }
 324                         break;
 325                 case IN_COLUMNS:
 326                         break;
 327                 }
 328
 329                 // We need to handle structure stuff first in order to
 330                 // determine wether we need to output a HLINE separator
 331                 // before the row or not.
 332                 if (t.cat() == catEscape) {
 333                         if (parse_hlines(p, t, hlines, is_long_tabular)) {
 334                                 switch (pos) {
 335                                 case ROW_START:
 336                                         pos = IN_HLINES_START;
 337                                         break;
 338                                 case IN_COLUMNS:
 339                                         pos = IN_HLINES_END;
 340                                         break;
 341                                 case IN_HLINES_START:
 342                                 case IN_HLINES_END:
 343                                         break;
 344                                 }
 345                                 continue;
 346                         }
 347
 348                         else if (t.cs() == "tabularnewline" ||
 349                                  t.cs() == "\\" ||
 350                                  t.cs() == "cr") {
 351                                 if (t.cs() == "cr")
 352                                         cerr << "Warning: Converting TeX "
 353                                                 "'\\cr' to LaTeX '\\\\'."
 354                                              << endl;
 355                                 // stuff before the line break
 356                                 os << comments << HLINE << hlines << HLINE
 357                                    << LINE;
 358                                 //cerr << "hlines: " << hlines << endl;
 359                                 hlines.erase();
 360                                 comments.erase();
 361                                 pos = ROW_START;
 362                                 continue;
 363                         }
 364
 365                         else if (is_long_tabular &&
 366                                  (t.cs() == "endhead" ||
 367                                   t.cs() == "endfirsthead" ||
 368                                   t.cs() == "endfoot" ||
 369                                   t.cs() == "endlastfoot")) {
 370                                 hlines += t.asInput();
 371                                 switch (pos) {
 372                                 case IN_COLUMNS:
 373                                 case IN_HLINES_END:
 374                                         // these commands are implicit line
 375                                         // breaks
 376                                         os << comments << HLINE << hlines
 377                                            << HLINE << LINE;
 378                                         hlines.erase();
 379                                         comments.erase();
 380                                         pos = ROW_START;
 381                                         break;
 382                                 case ROW_START:
 383                                         pos = IN_HLINES_START;
 384                                         break;
 385                                 case IN_HLINES_START:
 386                                         break;
 387                                 }
 388                                 continue;
 389                         }
 390
 391                 }
 392
 393                 // We need a HLINE separator if we either have no hline
 394                 // stuff at all and are just starting a row or if we just
 395                 // got the first non-hline token.
 396                 switch (pos) {
 397                 case ROW_START:
 398                         // no hline tokens exist, first token at row start
 399                 case IN_HLINES_START:
 400                         // hline tokens exist, first non-hline token at row
 401                         // start
 402                         os << hlines << HLINE << comments;
 403                         hlines.erase();
 404                         comments.erase();
 405                         pos = IN_COLUMNS;
 406                         break;
 407                 case IN_HLINES_END:
 408                         // Oops, there is still cell content after hline
 409                         // stuff. This does not work in LaTeX, so we ignore
 410                         // the hlines.
 411                         cerr << "Ignoring '" << hlines << "' in a cell"
 412                              << endl;
 413                         os << comments;
 414                         hlines.erase();
 415                         comments.erase();
 416                         pos = IN_COLUMNS;
 417                         break;
 418                 case IN_COLUMNS:
 419                         break;
 420                 }
 421
 422                 // If we come here we have normal cell content
 423                 //
 424                 // cat codes
 425                 //
 426                 if (t.cat() == catMath) {
 427                         // we are inside some text mode thingy, so opening new math is allowed
 428                         Token const & n = p.get_token();
 429                         if (n.cat() == catMath) {
 430                                 // TeX's $$...$$ syntax for displayed math
 431                                 os << "\\[";
 432                                 parse_math(p, os, FLAG_SIMPLE, MATH_MODE);
 433                                 os << "\\]";
 434                                 p.get_token(); // skip the second '$' token
 435                         } else {
 436                                 // simple $...$  stuff
 437                                 p.putback();
 438                                 os << '$';
 439                                 parse_math(p, os, FLAG_SIMPLE, MATH_MODE);
 440                                 os << '$';
 441                         }
 442                 }
 443
 444                 else if (t.cat() == catSpace || t.cat() == catNewline)
 445                                 os << t.cs();
 446
 447                 else if (t.cat() == catLetter ||
 448                                t.cat() == catSuper ||
 449                                t.cat() == catSub ||
 450                                t.cat() == catOther ||
 451                                t.cat() == catActive ||
 452                                t.cat() == catParameter)
 453                         os << t.character();
 454
 455                 else if (t.cat() == catBegin) {
 456                         os << '{';
 457                         parse_table(p, os, is_long_tabular, pos,
 458                                     FLAG_BRACE_LAST);
 459                         os << '}';
 460                 }
 461
 462                 else if (t.cat() == catEnd) {
 463                         if (flags & FLAG_BRACE_LAST)
 464                                 return;
 465                         cerr << "unexpected '}'\n";
 466                 }
 467
 468                 else if (t.cat() == catAlign) {
 469                         os << TAB;
 470                         p.skip_spaces();
 471                 }
 472
 473                 else if (t.cat() == catComment)
 474                         os << t.asInput();
 475
 476                 else if (t.cs() == "(") {
 477                         os << "\\(";
 478                         parse_math(p, os, FLAG_SIMPLE2, MATH_MODE);
 479                         os << "\\)";
 480                 }
 481
 482                 else if (t.cs() == "[") {
 483                         os << "\\[";
 484                         parse_math(p, os, FLAG_EQUATION, MATH_MODE);
 485                         os << "\\]";
 486                 }
 487
 488                 else if (t.cs() == "begin") {
 489                         string const name = p.getArg('{', '}');
 490                         active_environments.push_back(name);
 491                         os << "\\begin{" << name << '}';
 492                         if (is_math_env(name)) {
 493                                 parse_math(p, os, FLAG_END, MATH_MODE);
 494                         } else {
 495                                 parse_table(p, os, is_long_tabular, pos,
 496                                             FLAG_END);
 497                         }
 498                         os << "\\end{" << name << '}';
 499                         active_environments.pop_back();
 500                 }
 501
 502                 else if (t.cs() == "end") {
 503                         if (flags & FLAG_END) {
 504                                 // eat environment name
 505                                 string const name = p.getArg('{', '}');
 506                                 if (name != active_environment())
 507                                         p.error("\\end{" + name + "} does not match \\begin{"
 508                                                 + active_environment() + "}");
 509                                 return;
 510                         }
 511                         p.error("found 'end' unexpectedly");
 512                 }
 513
 514                 else
 515                         os << t.asInput();
 516         }
 517
 518         // We can have comments if the last line is incomplete
 519         os << comments;
 520
 521         // We can have hline stuff if the last line is incomplete
 522         if (!hlines.empty()) {
 523                 // this does not work in LaTeX, so we ignore it
 524                 cerr << "Ignoring '" << hlines << "' at end of tabular"
 525                      << endl;
 526         }
 527 }
 528
 529
 530 void handle_hline_above(RowInfo & ri, vector<CellInfo> & ci)
 531 {
 532         ri.topline = true;
 533         for (size_t col = 0; col < ci.size(); ++col)
 534                 ci[col].topline = true;
 535 }
 536
 537
 538 void handle_hline_below(RowInfo & ri, vector<CellInfo> & ci)
 539 {
 540         ri.bottomline = true;
 541         for (size_t col = 0; col < ci.size(); ++col)
 542                 ci[col].bottomline = true;
 543 }
 544
 545
 546 } // anonymous namespace
 547
 548
 549 void handle_tabular(Parser & p, ostream & os, bool is_long_tabular,
 550                     Context & context)
 551 {
 552         string posopts = p.getOpt();
 553         if (!posopts.empty()) {
 554                 if (is_long_tabular)
 555                         cerr << "horizontal longtable";
 556                 else
 557                         cerr << "vertical tabular";
 558                 cerr << " positioning '" << posopts << "' ignored\n";
 559         }
 560
 561         vector<ColInfo>            colinfo;
 562
 563         // handle column formatting
 564         handle_colalign(p, colinfo);
 565
 566         // first scan of cells
 567         // use table mode to keep it minimal-invasive
 568         // not exactly what's TeX doing...
 569         vector<string> lines;
 570         ostringstream ss;
 571         RowPosition rowpos = ROW_START;
 572         parse_table(p, ss, is_long_tabular, rowpos, FLAG_END);
 573         split(ss.str(), lines, LINE);
 574
 575         vector< vector<CellInfo> > cellinfo(lines.size());
 576         vector<RowInfo> rowinfo(lines.size());
 577
 578         // split into rows
 579         //cerr << "// split into rows\n";
 580         for (size_t row = 0; row < rowinfo.size(); ++row) {
 581
 582                 // init row
 583                 cellinfo[row].resize(colinfo.size());
 584
 585                 // split row
 586                 vector<string> dummy;
 587                 //cerr << "\n########### LINE: " << lines[row] << "########\n";
 588                 split(lines[row], dummy, HLINE);
 589
 590                 // handle horizontal line fragments
 591                 // we do only expect this for a last line without '\\'
 592                 if (dummy.size() != 3) {
 593                         if ((dummy.size() != 1 && dummy.size() != 2) ||
 594                             row != rowinfo.size() - 1)
 595                                 cerr << "unexpected dummy size: " << dummy.size()
 596                                         << " content: " << lines[row] << "\n";
 597                         dummy.resize(3);
 598                 }
 599                 lines[row] = dummy[1];
 600
 601                 //cerr << "line: " << row << " above 0: " << dummy[0] << "\n";
 602                 //cerr << "line: " << row << " below 2: " << dummy[2] <<  "\n";
 603                 //cerr << "line: " << row << " cells 1: " << dummy[1] <<  "\n";
 604
 605                 for (int i = 0; i <= 2; i += 2) {
 606                         //cerr << "   reading from line string '" << dummy[i] << "'\n";
 607                         Parser p1(dummy[i]);
 608                         while (p1.good()) {
 609                                 Token t = p1.get_token();
 610                                 //cerr << "read token: " << t << "\n";
 611                                 if (t.cs() == "hline") {
 612                                         if (i == 0) {
 613                                                 if (rowinfo[row].topline) {
 614                                                         if (row > 0) // extra bottomline above
 615                                                                 handle_hline_below(rowinfo[row - 1], cellinfo[row - 1]);
 616                                                         else
 617                                                                 cerr << "dropping extra hline\n";
 618                                                         //cerr << "below row: " << row-1 << endl;
 619                                                 } else {
 620                                                         handle_hline_above(rowinfo[row], cellinfo[row]);
 621                                                         //cerr << "above row: " << row << endl;
 622                                                 }
 623                                         } else {
 624                                                 //cerr << "below row: " << row << endl;
 625                                                 handle_hline_below(rowinfo[row], cellinfo[row]);
 626                                         }
 627                                 } else if (t.cs() == "cline") {
 628                                         string arg = p1.verbatim_item();
 629                                         //cerr << "read cline arg: '" << arg << "'\n";
 630                                         vector<string> t;
 631                                         split(arg, t, '-');
 632                                         t.resize(2);
 633                                         size_t from = string2int(t[0]) - 1;
 634                                         if (from >= colinfo.size()) {
 635                                                 cerr << "cline starts at non "
 636                                                         "existing column "
 637                                                      << (from + 1) << endl;
 638                                                 from = colinfo.size() - 1;
 639                                         }
 640                                         size_t to = string2int(t[1]) - 1;
 641                                         if (to >= colinfo.size()) {
 642                                                 cerr << "cline ends at non "
 643                                                         "existing column "
 644                                                      << (to + 1) << endl;
 645                                                 to = colinfo.size() - 1;
 646                                         }
 647                                         for (size_t col = from; col <= to; ++col) {
 648                                                 //cerr << "row: " << row << " col: " << col << " i: " << i << endl;
 649                                                 if (i == 0) {
 650                                                         rowinfo[row].topline = true;
 651                                                         cellinfo[row][col].topline = true;
 652                                                 } else {
 653                                                         rowinfo[row].bottomline = true;
 654                                                         cellinfo[row][col].bottomline = true;
 655                                                 }
 656                                         }
 657                                 } else if (t.cs() == "endhead") {
 658                                         if (i > 0)
 659                                                 rowinfo[row].type = LT_HEAD;
 660                                         for (int r = row - 1; r >= 0; --r) {
 661                                                 if (rowinfo[r].type != LT_NORMAL)
 662                                                         break;
 663                                                 rowinfo[r].type = LT_HEAD;
 664                                         }
 665                                 } else if (t.cs() == "endfirsthead") {
 666                                         if (i > 0)
 667                                                 rowinfo[row].type = LT_FIRSTHEAD;
 668                                         for (int r = row - 1; r >= 0; --r) {
 669                                                 if (rowinfo[r].type != LT_NORMAL)
 670                                                         break;
 671                                                 rowinfo[r].type = LT_FIRSTHEAD;
 672                                         }
 673                                 } else if (t.cs() == "endfoot") {
 674                                         if (i > 0)
 675                                                 rowinfo[row].type = LT_FOOT;
 676                                         for (int r = row - 1; r >= 0; --r) {
 677                                                 if (rowinfo[r].type != LT_NORMAL)
 678                                                         break;
 679                                                 rowinfo[r].type = LT_FOOT;
 680                                         }
 681                                 } else if (t.cs() == "endlastfoot") {
 682                                         if (i > 0)
 683                                                 rowinfo[row].type = LT_LASTFOOT;
 684                                         for (int r = row - 1; r >= 0; --r) {
 685                                                 if (rowinfo[r].type != LT_NORMAL)
 686                                                         break;
 687                                                 rowinfo[r].type = LT_LASTFOOT;
 688                                         }
 689                                 } else if (t.cs() == "newpage") {
 690                                         if (i == 0) {
 691                                                 if (row > 0)
 692                                                         rowinfo[row - 1].newpage = true;
 693                                                 else
 694                                                         cerr << "Ignoring "
 695                                                                 "'\\newpage' "
 696                                                                 "before rows."
 697                                                              << endl;
 698                                         } else
 699                                                 rowinfo[row].newpage = true;
 700                                 } else {
 701                                         cerr << "unexpected line token: " << t << endl;
 702                                 }
 703                         }
 704                 }
 705
 706                 // split into cells
 707                 vector<string> cells;
 708                 split(lines[row], cells, TAB);
 709                 // Has the last multicolumn cell a rightline?
 710                 bool last_rightline = false;
 711                 for (size_t col = 0, cell = 0;
 712                                 cell < cells.size() && col < colinfo.size(); ++col, ++cell) {
 713                         //cerr << "cell content: '" << cells[cell] << "'\n";
 714                         Parser p(cells[cell]);
 715                         p.skip_spaces();
 716                         //cells[cell] << "'\n";
 717                         if (p.next_token().cs() == "multicolumn") {
 718                                 // how many cells?
 719                                 p.get_token();
 720                                 size_t const ncells = string2int(p.verbatim_item());
 721
 722                                 // special cell properties alignment
 723                                 vector<ColInfo> t;
 724                                 handle_colalign(p, t);
 725                                 cellinfo[row][col].multi     = 1;
 726                                 cellinfo[row][col].align     = t.front().align;
 727                                 ostringstream os;
 728                                 parse_text_in_inset(p, os, FLAG_ITEM, false, context);
 729                                 cellinfo[row][col].content   = os.str();
 730
 731                                 // multicolumn cells are tricky: This
 732                                 // \multicolumn{2}{|c|}{col1-2}&
 733                                 // \multicolumn{2}{|c|}{col3-4} "\\"
 734                                 // gives | col1-2 | col3-4 | and not
 735                                 //       | col1-2 || col3-4 |
 736                                 // So:
 737                                 if (last_rightline && t.front().leftline) {
 738                                         t.front().leftline = false;
 739                                 }
 740                                 last_rightline = t.front().rightline;
 741
 742                                 // multicolumn lines override normal cell lines
 743                                 cellinfo[row][col].leftline  = t.front().leftline;
 744                                 cellinfo[row][col].rightline = t.front().rightline;
 745
 746                                 // add dummy cells for multicol
 747                                 for (size_t i = 0; i < ncells - 1 && col < colinfo.size(); ++i) {
 748                                         ++col;
 749                                         cellinfo[row][col].multi = 2;
 750                                         cellinfo[row][col].align = 'c';
 751                                 }
 752
 753                                 // more than one line on the right?
 754                                 if (t.front().rightline > 1)
 755                                         cellinfo[row][col + 1].leftline = true;
 756
 757                         } else {
 758                                 // FLAG_END is a hack, we need to read all of it
 759                                 cellinfo[row][col].leftline = colinfo[col].leftline;
 760                                 cellinfo[row][col].rightline = colinfo[col].rightline;
 761                                 cellinfo[row][col].align = colinfo[col].align;
 762                                 ostringstream os;
 763                                 parse_text_in_inset(p, os, FLAG_CELL, false, context);
 764                                 cellinfo[row][col].content   = os.str();
 765                                 last_rightline = false;
 766                         }
 767                 }
 768
 769                 //cerr << "//  handle almost empty last row what we have\n";
 770                 // handle almost empty last row
 771                 if (row && lines[row].empty() && row + 1 == rowinfo.size()) {
 772                         //cerr << "remove empty last line\n";
 773                         if (rowinfo[row].topline)
 774                                 rowinfo[row - 1].bottomline = true;
 775                         for (size_t col = 0; col < colinfo.size(); ++col)
 776                                 if (cellinfo[row][col].topline)
 777                                         cellinfo[row - 1][col].bottomline = true;
 778                         rowinfo.pop_back();
 779                 }
 780
 781         }
 782
 783         //cerr << "// output what we have\n";
 784         // output what we have
 785         os << "\n<lyxtabular version=\"3\" rows=\"" << rowinfo.size()
 786            << "\" columns=\"" << colinfo.size() << "\">\n";
 787         os << "<features"
 788            << write_attribute("islongtable", is_long_tabular)
 789            << ">\n";
 790
 791         //cerr << "// after header\n";
 792         for (size_t col = 0; col < colinfo.size(); ++col) {
 793                 os << "<column alignment=\""
 794                    << verbose_align(colinfo[col].align) << "\""
 795                    << " valignment=\"top\""
 796                    << write_attribute("leftline", colinfo[col].leftline)
 797                    << write_attribute("rightline", colinfo[col].rightline)
 798                    << write_attribute("width", colinfo[col].width)
 799                    << write_attribute("special", colinfo[col].special)
 800                    << ">\n";
 801         }
 802         //cerr << "// after cols\n";
 803
 804         for (size_t row = 0; row < rowinfo.size(); ++row) {
 805                 os << "<row"
 806                    << write_attribute("topline", rowinfo[row].topline)
 807                    << write_attribute("bottomline", rowinfo[row].bottomline)
 808                    << write_attribute("endhead",
 809                                       rowinfo[row].type == LT_HEAD)
 810                    << write_attribute("endfirsthead",
 811                                       rowinfo[row].type == LT_FIRSTHEAD)
 812                    << write_attribute("endfoot",
 813                                       rowinfo[row].type == LT_FOOT)
 814                    << write_attribute("endlastfoot",
 815                                       rowinfo[row].type == LT_LASTFOOT)
 816                    << write_attribute("newpage", rowinfo[row].newpage)
 817                    << ">\n";
 818                 for (size_t col = 0; col < colinfo.size(); ++col) {
 819                         CellInfo const & cell = cellinfo[row][col];
 820                         os << "<cell";
 821                         if (cell.multi)
 822                                 os << " multicolumn=\"" << cell.multi << "\"";
 823                         os << " alignment=\"" << verbose_align(cell.align)
 824                            << "\""
 825                            << " valignment=\"top\""
 826                            << write_attribute("topline", cell.topline)
 827                            << write_attribute("bottomline", cell.bottomline)
 828                            << write_attribute("leftline", cell.leftline)
 829                            << write_attribute("rightline", cell.rightline);
 830                         //cerr << "\nrow: " << row << " col: " << col;
 831                         //if (cell.topline)
 832                         //      cerr << " topline=\"true\"";
 833                         //if (cell.bottomline)
 834                         //      cerr << " bottomline=\"true\"";
 835                         os << " usebox=\"none\""
 836                            << ">"
 837                            << "\n\\begin_inset Text\n"
 838                            << cell.content
 839                            << "\n\\end_inset\n"
 840                            << "</cell>\n";
 841                 }
 842                 os << "</row>\n";
 843         }
 844
 845         os << "</lyxtabular>\n";
 846 }
 847
 848
 849
 850
 851 // }])