3 * This file is part of LyX, the document processor.
4 * Licence details can be found in the file COPYING.
8 * Full author contact details are available in file CREDITS.
13 If someone desperately needs partial "structures" (such as a few
14 cells of an array inset or similar) (s)he could uses the
15 following hack as starting point to write some macros:
20 \def\makeamptab{\catcode`\&=4\relax}
21 \def\makeampletter{\catcode`\&=11\relax}
22 \def\b{\makeampletter\expandafter\makeamptab\bi}
41 #include "math_parser.h"
42 #include "math_arrayinset.h"
43 #include "math_braceinset.h"
44 #include "math_charinset.h"
45 #include "math_commentinset.h"
46 #include "math_deliminset.h"
47 #include "math_envinset.h"
48 #include "math_factory.h"
49 #include "math_kerninset.h"
50 #include "math_macro.h"
51 #include "math_macrotemplate.h"
52 #include "math_parboxinset.h"
53 #include "math_parinset.h"
54 #include "math_rootinset.h"
55 #include "math_scriptinset.h"
56 #include "math_sqrtinset.h"
57 #include "math_support.h"
58 #include "math_tabularinset.h"
60 //#include "insets/insetref.h"
61 #include "ref_inset.h"
64 #include "support/std_sstream.h"
82 MathInset::mode_type asMode(MathInset::mode_type oldmode, string const & str)
84 //lyxerr << "handling mode: '" << str << "'" << endl;
85 if (str == "mathmode")
86 return MathInset::MATH_MODE;
87 if (str == "textmode" || str == "forcetext")
88 return MathInset::TEXT_MODE;
93 bool stared(string const & s)
95 string::size_type const n = s.size();
96 return n && s[n - 1] == '*';
100 // These are TeX's catcodes
102 catEscape, // 0 backslash
112 catSpace, // 10 space
113 catLetter, // 11 a-zA-Z
114 catOther, // 12 none of the above
117 catInvalid // 15 <delete>
120 CatCode theCatcode[256];
123 inline CatCode catcode(unsigned char c)
125 return theCatcode[c];
130 FLAG_BRACE_LAST = 1 << 1, // last closing brace ends the parsing
131 FLAG_RIGHT = 1 << 2, // next \\right ends the parsing process
132 FLAG_END = 1 << 3, // next \\end ends the parsing process
133 FLAG_BRACK_LAST = 1 << 4, // next closing bracket ends the parsing
134 FLAG_TEXTMODE = 1 << 5, // we are in a box
135 FLAG_ITEM = 1 << 6, // read a (possibly braced token)
136 FLAG_LEAVE = 1 << 7, // leave the loop at the end
137 FLAG_SIMPLE = 1 << 8, // next $ leaves the loop
138 FLAG_EQUATION = 1 << 9, // next \] leaves the loop
139 FLAG_SIMPLE2 = 1 << 10, // next \) leaves the loop
140 FLAG_OPTION = 1 << 11, // read [...] style option
141 FLAG_BRACED = 1 << 12 // read {...} style argument
147 fill(theCatcode, theCatcode + 256, catOther);
148 fill(theCatcode + 'a', theCatcode + 'z' + 1, catLetter);
149 fill(theCatcode + 'A', theCatcode + 'Z' + 1, catLetter);
151 theCatcode[int('\\')] = catEscape;
152 theCatcode[int('{')] = catBegin;
153 theCatcode[int('}')] = catEnd;
154 theCatcode[int('$')] = catMath;
155 theCatcode[int('&')] = catAlign;
156 theCatcode[int('\n')] = catNewline;
157 theCatcode[int('#')] = catParameter;
158 theCatcode[int('^')] = catSuper;
159 theCatcode[int('_')] = catSub;
160 theCatcode[int(0x7f)] = catIgnore;
161 theCatcode[int(' ')] = catSpace;
162 theCatcode[int('\t')] = catSpace;
163 theCatcode[int('\r')] = catNewline;
164 theCatcode[int('~')] = catActive;
165 theCatcode[int('%')] = catComment;
171 // Helper class for parsing
177 Token() : cs_(), char_(0), cat_(catIgnore) {}
179 Token(char c, CatCode cat) : cs_(), char_(c), cat_(cat) {}
181 Token(string const & cs) : cs_(cs), char_(0), cat_(catIgnore) {}
184 string const & cs() const { return cs_; }
186 CatCode cat() const { return cat_; }
188 char character() const { return char_; }
190 string asString() const { return cs_.size() ? cs_ : string(1, char_); }
201 ostream & operator<<(ostream & os, Token const & t)
204 os << '\\' << t.cs();
205 else if (t.cat() == catLetter)
208 os << '[' << t.character() << ',' << t.cat() << ']';
217 typedef MathInset::mode_type mode_type;
220 Parser(LyXLex & lex);
222 Parser(istream & is);
225 bool parse(MathAtom & at);
227 void parse(MathArray & array, unsigned flags, mode_type mode);
229 void parse1(MathGridInset & grid, unsigned flags, mode_type mode,
232 MathArray parse(unsigned flags, mode_type mode);
234 int lineno() const { return lineno_; }
240 void parse2(MathAtom & at, unsigned flags, mode_type mode, bool numbered);
241 /// get arg delimited by 'left' and 'right'
242 string getArg(char left, char right);
246 void error(string const & msg);
247 /// dump contents to screen
250 void tokenize(istream & is);
252 void tokenize(string const & s);
254 void skipSpaceTokens(istream & is, char c);
256 void push_back(Token const & t);
260 Token const & prevToken() const;
262 Token const & nextToken() const;
264 Token const & getToken();
265 /// skips spaces if any
268 void lex(string const & s);
272 string parse_verbatim_item();
274 string parse_verbatim_option();
279 vector<Token> tokens_;
285 Parser::Parser(LyXLex & lexer)
286 : lineno_(lexer.getLineNo()), pos_(0)
288 tokenize(lexer.getStream());
293 Parser::Parser(istream & is)
294 : lineno_(0), pos_(0)
300 void Parser::push_back(Token const & t)
302 tokens_.push_back(t);
306 void Parser::pop_back()
312 Token const & Parser::prevToken() const
314 static const Token dummy;
315 return pos_ > 0 ? tokens_[pos_ - 1] : dummy;
319 Token const & Parser::nextToken() const
321 static const Token dummy;
322 return good() ? tokens_[pos_] : dummy;
326 Token const & Parser::getToken()
328 static const Token dummy;
329 //lyxerr << "looking at token " << tokens_[pos_] << " pos: " << pos_ << endl;
330 return good() ? tokens_[pos_++] : dummy;
334 void Parser::skipSpaces()
336 while (nextToken().cat() == catSpace || nextToken().cat() == catNewline)
341 void Parser::putback()
347 bool Parser::good() const
349 return pos_ < tokens_.size();
353 char Parser::getChar()
356 error("The input stream is not well...");
357 return tokens_[pos_++].character();
361 string Parser::getArg(char left, char right)
371 while ((c = getChar()) != right && good())
378 void Parser::skipSpaceTokens(istream & is, char c)
380 // skip trailing spaces
381 while (catcode(c) == catSpace || catcode(c) == catNewline)
384 //lyxerr << "putting back: " << c << endl;
389 void Parser::tokenize(istream & is)
391 // eat everything up to the next \end_inset or end of stream
392 // and store it in s for further tokenization
397 if (s.size() >= 10 && s.substr(s.size() - 10) == "\\end_inset") {
398 s = s.substr(0, s.size() - 10);
402 // Remove the space after \end_inset
403 if (is.get(c) && c != ' ')
411 void Parser::tokenize(string const & buffer)
413 static bool init_done = false;
420 istringstream is(buffer.c_str(), ios::in | ios::binary);
424 //lyxerr << "reading c: " << c << endl;
426 switch (catcode(c)) {
430 if (catcode(c) == catNewline)
431 ; //push_back(Token("par"));
433 push_back(Token('\n', catNewline));
441 while (is.get(c) && catcode(c) != catNewline)
451 error("unexpected end of input");
454 if (catcode(c) == catLetter) {
456 while (is.get(c) && catcode(c) == catLetter)
458 skipSpaceTokens(is, c);
467 push_back(Token(c, catcode(c)));
469 skipSpaceTokens(is, c);
474 lyxerr << "ignoring a char: " << int(c) << endl;
479 push_back(Token(c, catcode(c)));
489 void Parser::dump() const
491 lyxerr << "\nTokens: ";
492 for (unsigned i = 0; i < tokens_.size(); ++i) {
495 lyxerr << tokens_[i];
497 lyxerr << " pos: " << pos_ << endl;
501 void Parser::error(string const & msg)
503 lyxerr << "Line ~" << lineno_ << ": Math parse error: " << msg << endl;
509 bool Parser::parse(MathAtom & at)
513 parse(ar, false, MathInset::UNDECIDED_MODE);
514 if (ar.size() != 1 || ar.front()->getType() == "none") {
515 lyxerr << "unusual contents found: " << ar << endl;
516 at = MathAtom(new MathParInset(ar));
517 //if (at->nargs() > 0)
518 // at.nucleus()->cell(0) = ar;
520 // lyxerr << "unusual contents found: " << ar << endl;
528 string Parser::parse_verbatim_option()
532 if (nextToken().character() == '[') {
533 Token t = getToken();
534 for (Token t = getToken(); t.character() != ']' && good(); t = getToken()) {
535 if (t.cat() == catBegin) {
537 res += '{' + parse_verbatim_item() + '}';
546 string Parser::parse_verbatim_item()
550 if (nextToken().cat() == catBegin) {
551 Token t = getToken();
552 for (Token t = getToken(); t.cat() != catEnd && good(); t = getToken()) {
553 if (t.cat() == catBegin) {
555 res += '{' + parse_verbatim_item() + '}';
565 MathArray Parser::parse(unsigned flags, mode_type mode)
568 parse(ar, flags, mode);
573 void Parser::parse(MathArray & array, unsigned flags, mode_type mode)
575 MathGridInset grid(1, 1);
576 parse1(grid, flags, mode, false);
577 array = grid.cell(0);
581 void Parser::parse2(MathAtom & at, const unsigned flags, const mode_type mode,
584 parse1(*(at.nucleus()->asGridInset()), flags, mode, numbered);
588 void Parser::parse1(MathGridInset & grid, unsigned flags,
589 const mode_type mode, const bool numbered)
592 MathGridInset::row_type cellrow = 0;
593 MathGridInset::col_type cellcol = 0;
594 MathArray * cell = &grid.cell(grid.index(cellrow, cellcol));
596 if (grid.asHullInset())
597 grid.asHullInset()->numbered(cellrow, numbered);
600 //lyxerr << " flags: " << flags << endl;
601 //lyxerr << " mode: " << mode << endl;
602 //lyxerr << "grid: " << grid << endl;
605 Token const & t = getToken();
608 lyxerr << "t: " << t << " flags: " << flags << endl;
609 lyxerr << "mode: " << mode << endl;
614 if (flags & FLAG_ITEM) {
616 if (t.cat() == catBegin) {
617 // skip the brace and collect everything to the next matching
619 parse1(grid, FLAG_BRACE_LAST, mode, numbered);
623 // handle only this single token, leave the loop if done
628 if (flags & FLAG_BRACED) {
629 if (t.cat() == catSpace)
632 if (t.cat() != catBegin) {
633 error("opening brace expected");
637 // skip the brace and collect everything to the next matching
639 flags = FLAG_BRACE_LAST;
643 if (flags & FLAG_OPTION) {
644 if (t.cat() == catOther && t.character() == '[') {
646 parse(ar, FLAG_BRACK_LAST, mode);
649 // no option found, put back token and we are done
658 if (t.cat() == catMath) {
659 if (mode != MathInset::MATH_MODE) {
660 // we are inside some text mode thingy, so opening new math is allowed
661 Token const & n = getToken();
662 if (n.cat() == catMath) {
663 // TeX's $$...$$ syntax for displayed math
664 cell->push_back(MathAtom(new MathHullInset("equation")));
665 parse2(cell->back(), FLAG_SIMPLE, MathInset::MATH_MODE, false);
666 getToken(); // skip the second '$' token
668 // simple $...$ stuff
670 cell->push_back(MathAtom(new MathHullInset("simple")));
671 parse2(cell->back(), FLAG_SIMPLE, MathInset::MATH_MODE, false);
675 else if (flags & FLAG_SIMPLE) {
676 // this is the end of the formula
681 error("something strange in the parser");
686 else if (t.cat() == catLetter)
687 cell->push_back(MathAtom(new MathCharInset(t.character())));
689 else if (t.cat() == catSpace && mode != MathInset::MATH_MODE) {
690 if (cell->empty() || cell->back()->getChar() != ' ')
691 cell->push_back(MathAtom(new MathCharInset(t.character())));
694 else if (t.cat() == catNewline && mode != MathInset::MATH_MODE) {
695 if (cell->empty() || cell->back()->getChar() != ' ')
696 cell->push_back(MathAtom(new MathCharInset(' ')));
699 else if (t.cat() == catParameter) {
700 Token const & n = getToken();
701 cell->push_back(MathAtom(new MathMacroArgument(n.character()-'0')));
704 else if (t.cat() == catActive)
705 cell->push_back(MathAtom(new MathCharInset(t.character())));
707 else if (t.cat() == catBegin) {
709 parse(ar, FLAG_BRACE_LAST, mode);
710 // do not create a BraceInset if they were written by LyX
711 // this helps to keep the annoyance of "a choose b" to a minimum
712 if (ar.size() == 1 && ar[0]->extraBraces())
715 cell->push_back(MathAtom(new MathBraceInset(ar)));
718 else if (t.cat() == catEnd) {
719 if (flags & FLAG_BRACE_LAST)
721 error("found '}' unexpectedly");
723 //add(cell, '}', LM_TC_TEX);
726 else if (t.cat() == catAlign) {
728 //lyxerr << " column now " << cellcol << " max: " << grid.ncols() << endl;
729 if (cellcol == grid.ncols()) {
730 //lyxerr << "adding column " << cellcol << endl;
731 grid.addCol(cellcol - 1);
733 cell = &grid.cell(grid.index(cellrow, cellcol));
736 else if (t.cat() == catSuper || t.cat() == catSub) {
737 bool up = (t.cat() == catSuper);
738 // we need no new script inset if the last thing was a scriptinset,
739 // which has that script already not the same script already
741 cell->push_back(MathAtom(new MathScriptInset(up)));
742 else if (cell->back()->asScriptInset() &&
743 !cell->back()->asScriptInset()->has(up))
744 cell->back().nucleus()->asScriptInset()->ensure(up);
745 else if (cell->back()->asScriptInset())
746 cell->push_back(MathAtom(new MathScriptInset(up)));
748 cell->back() = MathAtom(new MathScriptInset(cell->back(), up));
749 MathScriptInset * p = cell->back().nucleus()->asScriptInset();
750 // special handling of {}-bases
751 // is this always correct?
752 // It appears that this is wrong (Dekel)
753 //if (p->nuc().size() == 1 && p->nuc().back()->asNestInset() &&
754 // p->nuc().back()->extraBraces())
755 // p->nuc() = p->nuc().back()->asNestInset()->cell(0);
756 parse(p->cell(up), FLAG_ITEM, mode);
763 else if (t.character() == ']' && (flags & FLAG_BRACK_LAST)) {
764 //lyxerr << "finished reading option" << endl;
768 else if (t.cat() == catOther)
769 cell->push_back(MathAtom(new MathCharInset(t.character())));
771 else if (t.cat() == catComment) {
774 Token const & t = getToken();
775 if (t.cat() == catNewline)
779 cell->push_back(MathAtom(new MathCommentInset(s)));
787 else if (t.cs() == "lyxlock") {
789 cell->back().nucleus()->lock(true);
792 else if (t.cs() == "def" ||
793 t.cs() == "newcommand" ||
794 t.cs() == "renewcommand")
796 string const type = t.cs();
799 if (t.cs() == "def") {
801 name = getToken().cs();
805 while (good() && nextToken().cat() != catBegin) {
806 pars += getToken().cs();
810 //lyxerr << "read \\def parameter list '" << pars << "'" << endl;
812 } else { // t.cs() == "newcommand" || t.cs() == "renewcommand"
814 if (getToken().cat() != catBegin) {
815 error("'{' in \\newcommand expected (1) ");
819 name = getToken().cs();
821 if (getToken().cat() != catEnd) {
822 error("'}' in \\newcommand expected");
826 string arg = getArg('[', ']');
828 nargs = atoi(arg.c_str());
833 parse(ar1, FLAG_ITEM, MathInset::UNDECIDED_MODE);
835 // we cannot handle recursive stuff at all
837 //test.push_back(createMathInset(name));
838 //if (ar1.contains(test)) {
839 // error("we cannot handle recursive macros at all.");
843 // is a version for display attached?
846 if (nextToken().cat() == catBegin)
847 parse(ar2, FLAG_ITEM, MathInset::MATH_MODE);
849 cell->push_back(MathAtom(new MathMacroTemplate(name, nargs, type,
853 else if (t.cs() == "(") {
854 cell->push_back(MathAtom(new MathHullInset("simple")));
855 parse2(cell->back(), FLAG_SIMPLE2, MathInset::MATH_MODE, false);
858 else if (t.cs() == "[") {
859 cell->push_back(MathAtom(new MathHullInset("equation")));
860 parse2(cell->back(), FLAG_EQUATION, MathInset::MATH_MODE, false);
863 else if (t.cs() == "protect")
864 // ignore \\protect, will hopefully be re-added during output
867 else if (t.cs() == "end") {
868 if (flags & FLAG_END) {
869 // eat environment name
870 //string const name =
872 // FIXME: check that we ended the correct environment
875 error("found 'end' unexpectedly");
878 else if (t.cs() == ")") {
879 if (flags & FLAG_SIMPLE2)
881 error("found '\\)' unexpectedly");
884 else if (t.cs() == "]") {
885 if (flags & FLAG_EQUATION)
887 error("found '\\]' unexpectedly");
890 else if (t.cs() == "\\") {
891 grid.vcrskip(LyXLength(getArg('[', ']')), cellrow);
894 if (cellrow == grid.nrows())
895 grid.addRow(cellrow - 1);
896 if (grid.asHullInset())
897 grid.asHullInset()->numbered(cellrow, numbered);
898 cell = &grid.cell(grid.index(cellrow, cellcol));
902 else if (t.cs() == "multicolumn") {
903 // extract column count and insert dummy cells
905 parse(count, FLAG_ITEM, mode);
907 if (!extractNumber(count, cols)) {
908 lyxerr << " can't extract number of cells from " << count << endl;
910 // resize the table if necessary
911 for (int i = 0; i < cols; ++i) {
913 if (cellcol == grid.ncols()) {
914 //lyxerr << "adding column " << cellcol << endl;
915 grid.addCol(cellcol - 1);
917 cell = &grid.cell(grid.index(cellrow, cellcol));
918 // mark this as dummy
919 grid.cellinfo(grid.index(cellrow, cellcol)).dummy_ = true;
921 // the last cell is the real thng, not a dummy
922 grid.cellinfo(grid.index(cellrow, cellcol)).dummy_ = false;
924 // read special alignment
926 parse(align, FLAG_ITEM, mode);
927 //grid.cellinfo(grid.index(cellrow, cellcol)).align_ = extractString(align);
929 // parse the remaining contents into the "real" cell
930 parse(*cell, FLAG_ITEM, mode);
934 else if (t.cs() == "limits")
937 else if (t.cs() == "nolimits")
940 else if (t.cs() == "nonumber") {
941 if (grid.asHullInset())
942 grid.asHullInset()->numbered(cellrow, false);
945 else if (t.cs() == "number") {
946 if (grid.asHullInset())
947 grid.asHullInset()->numbered(cellrow, true);
950 else if (t.cs() == "hline") {
951 grid.rowinfo(cellrow).lines_ ++;
954 else if (t.cs() == "sqrt") {
956 parse(ar, FLAG_OPTION, mode);
958 cell->push_back(MathAtom(new MathRootInset));
959 cell->back().nucleus()->cell(0) = ar;
960 parse(cell->back().nucleus()->cell(1), FLAG_ITEM, mode);
962 cell->push_back(MathAtom(new MathSqrtInset));
963 parse(cell->back().nucleus()->cell(0), FLAG_ITEM, mode);
967 else if (t.cs() == "xrightarrow" || t.cs() == "xleftarrow") {
968 cell->push_back(createMathInset(t.cs()));
969 parse(cell->back().nucleus()->cell(1), FLAG_OPTION, mode);
970 parse(cell->back().nucleus()->cell(0), FLAG_ITEM, mode);
973 else if (t.cs() == "ref" || t.cs() == "prettyref" ||
974 t.cs() == "pageref" || t.cs() == "vpageref" || t.cs() == "vref") {
975 cell->push_back(MathAtom(new RefInset(t.cs())));
976 parse(cell->back().nucleus()->cell(1), FLAG_OPTION, mode);
977 parse(cell->back().nucleus()->cell(0), FLAG_ITEM, mode);
980 else if (t.cs() == "left") {
982 string l = getToken().asString();
984 parse(ar, FLAG_RIGHT, mode);
986 string r = getToken().asString();
987 cell->push_back(MathAtom(new MathDelimInset(l, r, ar)));
990 else if (t.cs() == "right") {
991 if (flags & FLAG_RIGHT)
993 //lyxerr << "got so far: '" << cell << "'" << endl;
994 error("Unmatched right delimiter");
998 else if (t.cs() == "begin") {
999 string const name = getArg('{', '}');
1001 if (name == "array" || name == "subarray") {
1002 string const valign = parse_verbatim_option() + 'c';
1003 string const halign = parse_verbatim_item();
1004 cell->push_back(MathAtom(new MathArrayInset(name, valign[0], halign)));
1005 parse2(cell->back(), FLAG_END, mode, false);
1008 else if (name == "tabular") {
1009 string const valign = parse_verbatim_option() + 'c';
1010 string const halign = parse_verbatim_item();
1011 cell->push_back(MathAtom(new MathTabularInset(name, valign[0], halign)));
1012 parse2(cell->back(), FLAG_END, MathInset::TEXT_MODE, false);
1015 else if (name == "split" || name == "cases" ||
1016 name == "gathered" || name == "aligned") {
1017 cell->push_back(createMathInset(name));
1018 parse2(cell->back(), FLAG_END, mode, false);
1021 else if (name == "math") {
1022 cell->push_back(MathAtom(new MathHullInset("simple")));
1023 parse2(cell->back(), FLAG_END, MathInset::MATH_MODE, true);
1026 else if (name == "equation" || name == "equation*"
1027 || name == "displaymath") {
1028 cell->push_back(MathAtom(new MathHullInset("equation")));
1029 parse2(cell->back(), FLAG_END, MathInset::MATH_MODE, (name == "equation"));
1032 else if (name == "eqnarray" || name == "eqnarray*") {
1033 cell->push_back(MathAtom(new MathHullInset("eqnarray")));
1034 parse2(cell->back(), FLAG_END, MathInset::MATH_MODE, !stared(name));
1037 else if (name == "align" || name == "align*") {
1038 cell->push_back(MathAtom(new MathHullInset("align")));
1039 parse2(cell->back(), FLAG_END, MathInset::MATH_MODE, !stared(name));
1042 else if (name == "flalign" || name == "flalign*") {
1043 cell->push_back(MathAtom(new MathHullInset("flalign")));
1044 parse2(cell->back(), FLAG_END, MathInset::MATH_MODE, !stared(name));
1047 else if (name == "alignat" || name == "alignat*") {
1048 // ignore this for a while
1050 cell->push_back(MathAtom(new MathHullInset("alignat")));
1051 parse2(cell->back(), FLAG_END, MathInset::MATH_MODE, !stared(name));
1054 else if (name == "xalignat" || name == "xalignat*") {
1055 // ignore this for a while
1057 cell->push_back(MathAtom(new MathHullInset("xalignat")));
1058 parse2(cell->back(), FLAG_END, MathInset::MATH_MODE, !stared(name));
1061 else if (name == "xxalignat") {
1062 // ignore this for a while
1064 cell->push_back(MathAtom(new MathHullInset("xxalignat")));
1065 parse2(cell->back(), FLAG_END, MathInset::MATH_MODE, !stared(name));
1068 else if (name == "multline" || name == "multline*") {
1069 cell->push_back(MathAtom(new MathHullInset("multline")));
1070 parse2(cell->back(), FLAG_END, MathInset::MATH_MODE, !stared(name));
1073 else if (name == "gather" || name == "gather*") {
1074 cell->push_back(MathAtom(new MathHullInset("gather")));
1075 parse2(cell->back(), FLAG_END, MathInset::MATH_MODE, !stared(name));
1078 else if (latexkeys const * l = in_word_set(name)) {
1079 if (l->inset == "matrix") {
1080 cell->push_back(createMathInset(name));
1081 parse2(cell->back(), FLAG_END, mode, false);
1087 lyxerr << "found unknown math environment '" << name << "'" << endl;
1088 // create generic environment inset
1089 cell->push_back(MathAtom(new MathEnvInset(name)));
1090 parse(cell->back().nucleus()->cell(0), FLAG_ITEM, mode);
1094 else if (t.cs() == "kern") {
1095 #ifdef WITH_WARNINGS
1100 Token const & t = getToken();
1106 if (isValidLength(s))
1109 cell->push_back(MathAtom(new MathKernInset(s)));
1112 else if (t.cs() == "label") {
1113 string label = parse_verbatim_item();
1116 if (grid.asHullInset()) {
1117 grid.asHullInset()->label(cellrow, label);
1119 cell->push_back(createMathInset(t.cs()));
1120 cell->push_back(MathAtom(new MathBraceInset(ar)));
1124 else if (t.cs() == "choose" || t.cs() == "over" || t.cs() == "atop") {
1125 MathAtom at = createMathInset(t.cs());
1126 at.nucleus()->cell(0) = *cell;
1128 parse(at.nucleus()->cell(1), flags, mode);
1129 cell->push_back(at);
1133 else if (t.cs() == "substack") {
1134 cell->push_back(createMathInset(t.cs()));
1135 parse2(cell->back(), FLAG_ITEM, mode, false);
1138 else if (t.cs() == "framebox" || t.cs() == "makebox") {
1139 cell->push_back(createMathInset(t.cs()));
1140 parse(cell->back().nucleus()->cell(0), FLAG_OPTION, MathInset::TEXT_MODE);
1141 parse(cell->back().nucleus()->cell(1), FLAG_OPTION, MathInset::TEXT_MODE);
1142 parse(cell->back().nucleus()->cell(2), FLAG_ITEM, MathInset::TEXT_MODE);
1146 else if (t.cs() == "infer") {
1148 parse(ar, FLAG_OPTION, mode);
1149 cell->push_back(createMathInset(t.cs()));
1150 parse2(cell->back(), FLAG_ITEM, mode, false);
1154 else if (1 && t.cs() == "ar") {
1155 MathXYArrowInset * p = new MathXYArrowInset;
1156 // try to read target
1157 parse(p->cell(0), FLAG_OTPTION, mode);
1158 // try to read label
1159 if (nextToken().cat() == catSuper || nextToken().cat() == catSub) {
1160 p->up_ = nextToken().cat() == catSuper;
1162 parse(p->cell(1), FLAG_ITEM, mode);
1163 //lyxerr << "read label: " << p->cell(1) << endl;
1166 cell->push_back(MathAtom(p));
1167 //lyxerr << "read cell: " << cell << endl;
1171 else if (t.cs().size()) {
1172 latexkeys const * l = in_word_set(t.cs());
1174 if (l->inset == "font") {
1175 cell->push_back(createMathInset(t.cs()));
1176 parse(cell->back().nucleus()->cell(0), FLAG_ITEM, asMode(mode, l->extra));
1179 else if (l->inset == "oldfont") {
1180 cell->push_back(createMathInset(t.cs()));
1181 parse(cell->back().nucleus()->cell(0), flags, asMode(mode, l->extra));
1185 else if (l->inset == "style") {
1186 cell->push_back(createMathInset(t.cs()));
1187 parse(cell->back().nucleus()->cell(0), flags, mode);
1191 else if (l->inset == "parbox") {
1192 // read optional positioning and width
1193 string pos = parse_verbatim_option();
1194 string width = parse_verbatim_item();
1195 cell->push_back(createMathInset(t.cs()));
1196 parse(cell->back().nucleus()->cell(0), FLAG_ITEM, MathInset::TEXT_MODE);
1197 cell->back().nucleus()->asParboxInset()->setPosition(pos);
1198 cell->back().nucleus()->asParboxInset()->setWidth(width);
1202 MathAtom at = createMathInset(t.cs());
1203 for (MathInset::idx_type i = 0; i < at->nargs(); ++i)
1204 parse(at.nucleus()->cell(i), FLAG_ITEM, asMode(mode, l->extra));
1205 cell->push_back(at);
1210 MathAtom at = createMathInset(t.cs());
1211 MathInset::mode_type m = mode;
1212 //if (m == MathInset::UNDECIDED_MODE)
1213 //lyxerr << "default creation: m1: " << m << endl;
1214 if (at->currentMode() != MathInset::UNDECIDED_MODE)
1215 m = at->currentMode();
1216 //lyxerr << "default creation: m2: " << m << endl;
1217 MathInset::idx_type start = 0;
1218 // this fails on \bigg[...\bigg]
1220 //parse(opt, FLAG_OPTION, MathInset::VERBATIM_MODE);
1223 // at.nucleus()->cell(0) = opt;
1225 for (MathInset::idx_type i = start; i < at->nargs(); ++i)
1226 parse(at.nucleus()->cell(i), FLAG_ITEM, m);
1227 cell->push_back(at);
1232 if (flags & FLAG_LEAVE) {
1233 flags &= ~FLAG_LEAVE;
1241 } // anonymous namespace
1244 void mathed_parse_cell(MathArray & ar, string const & str)
1246 istringstream is(str.c_str());
1247 mathed_parse_cell(ar, is);
1251 void mathed_parse_cell(MathArray & ar, istream & is)
1253 Parser(is).parse(ar, 0, MathInset::MATH_MODE);
1257 bool mathed_parse_normal(MathAtom & t, string const & str)
1259 istringstream is(str.c_str());
1260 return Parser(is).parse(t);
1264 bool mathed_parse_normal(MathAtom & t, istream & is)
1266 return Parser(is).parse(t);
1270 bool mathed_parse_normal(MathAtom & t, LyXLex & lex)
1272 return Parser(lex).parse(t);
1276 void mathed_parse_normal(MathGridInset & grid, string const & str)
1278 istringstream is(str.c_str());
1279 Parser(is).parse1(grid, 0, MathInset::MATH_MODE, false);