2 \author André Pönitz (2001)
7 If someone desperately needs partial "structures" (such as a few
8 cells of an array inset or similar) (s)he could uses the
9 following hack as starting point to write some macros:
14 \def\makeamptab{\catcode`\&=4\relax}
15 \def\makeampletter{\catcode`\&=11\relax}
16 \def\b{\makeampletter\expandafter\makeamptab\bi}
36 #pragma implementation
39 #include "math_parser.h"
40 #include "math_inset.h"
41 #include "math_arrayinset.h"
42 #include "math_braceinset.h"
43 #include "math_boxinset.h"
44 #include "math_charinset.h"
45 #include "math_commentinset.h"
46 #include "math_deliminset.h"
47 #include "math_envinset.h"
48 #include "math_extern.h"
49 #include "math_factory.h"
50 #include "math_kerninset.h"
51 #include "math_macro.h"
52 #include "math_macrotemplate.h"
53 #include "math_hullinset.h"
54 #include "math_parboxinset.h"
55 #include "math_parinset.h"
56 #include "math_rootinset.h"
57 #include "math_scriptinset.h"
58 #include "math_sizeinset.h"
59 #include "math_sqrtinset.h"
60 #include "math_stringinset.h"
61 #include "math_support.h"
62 #include "math_xyarrowinset.h"
64 //#include "insets/insetref.h"
65 #include "ref_inset.h"
69 #include "support/LAssert.h"
70 #include "support/lstrings.h"
89 MathInset::mode_type asMode(MathInset::mode_type oldmode, string const & str)
91 if (str == "mathmode")
92 return MathInset::MATH_MODE;
93 if (str == "textmode" || str == "forcetext")
94 return MathInset::TEXT_MODE;
99 bool stared(string const & s)
101 string::size_type const n = s.size();
102 return n && s[n - 1] == '*';
106 // These are TeX's catcodes
108 catEscape, // 0 backslash
118 catSpace, // 10 space
119 catLetter, // 11 a-zA-Z
120 catOther, // 12 none of the above
123 catInvalid // 15 <delete>
126 CatCode theCatcode[256];
129 inline CatCode catcode(unsigned char c)
131 return theCatcode[c];
136 FLAG_BRACE_LAST = 1 << 1, // last closing brace ends the parsing
137 FLAG_RIGHT = 1 << 2, // next \\right ends the parsing process
138 FLAG_END = 1 << 3, // next \\end ends the parsing process
139 FLAG_BRACK_LAST = 1 << 4, // next closing bracket ends the parsing
140 FLAG_TEXTMODE = 1 << 5, // we are in a box
141 FLAG_ITEM = 1 << 6, // read a (possibly braced token)
142 FLAG_LEAVE = 1 << 7, // leave the loop at the end
143 FLAG_SIMPLE = 1 << 8, // next $ leaves the loop
144 FLAG_EQUATION = 1 << 9, // next \] leaves the loop
145 FLAG_SIMPLE2 = 1 << 10, // next \) leaves the loop
146 FLAG_OPTION = 1 << 11, // read [...] style option
147 FLAG_BRACED = 1 << 12 // read {...} style argument
153 fill(theCatcode, theCatcode + 256, catOther);
154 fill(theCatcode + 'a', theCatcode + 'z' + 1, catLetter);
155 fill(theCatcode + 'A', theCatcode + 'Z' + 1, catLetter);
157 theCatcode['\\'] = catEscape;
158 theCatcode['{'] = catBegin;
159 theCatcode['}'] = catEnd;
160 theCatcode['$'] = catMath;
161 theCatcode['&'] = catAlign;
162 theCatcode['\n'] = catNewline;
163 theCatcode['#'] = catParameter;
164 theCatcode['^'] = catSuper;
165 theCatcode['_'] = catSub;
166 theCatcode['
\7f'] = catIgnore;
167 theCatcode[' '] = catSpace;
168 theCatcode['\t'] = catSpace;
169 theCatcode['\r'] = catNewline;
170 theCatcode['~'] = catActive;
171 theCatcode['%'] = catComment;
177 // Helper class for parsing
183 Token() : cs_(), char_(0), cat_(catIgnore) {}
185 Token(char c, CatCode cat) : cs_(), char_(c), cat_(cat) {}
187 Token(string const & cs) : cs_(cs), char_(0), cat_(catIgnore) {}
190 string const & cs() const { return cs_; }
192 CatCode cat() const { return cat_; }
194 char character() const { return char_; }
196 string asString() const { return cs_.size() ? cs_ : string(1, char_); }
207 ostream & operator<<(ostream & os, Token const & t)
210 os << "\\" << t.cs();
212 os << "[" << t.character() << "," << t.cat() << "]";
221 typedef MathInset::mode_type mode_type;
224 Parser(LyXLex & lex);
226 Parser(istream & is);
229 bool parse(MathAtom & at);
231 void parse(MathArray & array, unsigned flags, mode_type mode);
233 void parse1(MathGridInset & grid, unsigned flags, mode_type mode,
236 MathArray parse(unsigned flags, mode_type mode);
238 int lineno() const { return lineno_; }
244 void parse2(MathAtom & at, unsigned flags, mode_type mode, bool numbered);
245 /// get arg delimited by 'left' and 'right'
246 string getArg(char left, char right);
250 void error(string const & msg);
251 /// dump contents to screen
254 void tokenize(istream & is);
256 void tokenize(string const & s);
258 void skipSpaceTokens(istream & is, char c);
260 void push_back(Token const & t);
264 Token const & prevToken() const;
266 Token const & nextToken() const;
268 Token const & getToken();
269 /// skips spaces if any
272 void lex(string const & s);
276 string parse_verbatim_item();
278 string parse_verbatim_option();
283 vector<Token> tokens_;
289 Parser::Parser(LyXLex & lexer)
290 : lineno_(lexer.getLineNo()), pos_(0)
292 tokenize(lexer.getStream());
297 Parser::Parser(istream & is)
298 : lineno_(0), pos_(0)
304 void Parser::push_back(Token const & t)
306 tokens_.push_back(t);
310 void Parser::pop_back()
316 Token const & Parser::prevToken() const
318 static const Token dummy;
319 return pos_ > 0 ? tokens_[pos_ - 1] : dummy;
323 Token const & Parser::nextToken() const
325 static const Token dummy;
326 return good() ? tokens_[pos_] : dummy;
330 Token const & Parser::getToken()
332 static const Token dummy;
333 //lyxerr << "looking at token " << tokens_[pos_] << " pos: " << pos_ << '\n';
334 return good() ? tokens_[pos_++] : dummy;
338 void Parser::skipSpaces()
340 while (nextToken().cat() == catSpace || nextToken().cat() == catNewline)
345 void Parser::putback()
351 bool Parser::good() const
353 return pos_ < tokens_.size();
357 char Parser::getChar()
360 error("The input stream is not well...");
361 return tokens_[pos_++].character();
365 string Parser::getArg(char left, char right)
375 while ((c = getChar()) != right && good())
382 void Parser::skipSpaceTokens(istream & is, char c)
384 // skip trailing spaces
385 while (catcode(c) == catSpace || catcode(c) == catNewline)
388 //lyxerr << "putting back: " << c << "\n";
393 void Parser::tokenize(istream & is)
395 // eat everything up to the next \end_inset or end of stream
396 // and store it in s for further tokenization
401 if (s.size() >= 10 && s.substr(s.size() - 10) == "\\end_inset") {
402 s = s.substr(0, s.size() - 10);
412 void Parser::tokenize(string const & buffer)
414 static bool init_done = false;
421 istringstream is(buffer.c_str(), ios::in | ios::binary);
425 //lyxerr << "reading c: " << c << "\n";
427 switch (catcode(c)) {
431 if (catcode(c) == catNewline)
432 ; //push_back(Token("par"));
434 push_back(Token('\n', catNewline));
442 while (is.get(c) && catcode(c) != catNewline)
452 error("unexpected end of input");
455 if (catcode(c) == catLetter) {
457 while (is.get(c) && catcode(c) == catLetter)
459 skipSpaceTokens(is, c);
468 push_back(Token(c, catcode(c)));
470 skipSpaceTokens(is, c);
475 lyxerr << "ignoring a char: " << int(c) << "\n";
480 push_back(Token(c, catcode(c)));
490 void Parser::dump() const
492 lyxerr << "\nTokens: ";
493 for (unsigned i = 0; i < tokens_.size(); ++i) {
496 lyxerr << tokens_[i];
498 lyxerr << " pos: " << pos_ << "\n";
502 void Parser::error(string const & msg)
504 lyxerr << "Line ~" << lineno_ << ": Math parse error: " << msg << endl;
510 bool Parser::parse(MathAtom & at)
514 parse(ar, false, MathInset::UNDECIDED_MODE);
515 if (ar.size() != 1 || ar.front()->getType() == "none") {
516 lyxerr << "unusual contents found: " << ar << endl;
517 at = MathAtom(new MathParInset(ar));
518 //if (at->nargs() > 0)
519 // at.nucleus()->cell(0) = ar;
521 // lyxerr << "unusual contents found: " << ar << endl;
529 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()
549 if (nextToken().cat() == catBegin) {
550 Token t = getToken();
551 for (Token t = getToken(); t.cat() != catEnd && good(); t = getToken()) {
552 if (t.cat() == catBegin) {
554 res += '{' + parse_verbatim_item() + '}';
564 MathArray Parser::parse(unsigned flags, mode_type mode)
567 parse(ar, flags, mode);
572 void Parser::parse(MathArray & array, unsigned flags, mode_type mode)
574 MathGridInset grid(1, 1);
575 parse1(grid, flags, mode, false);
576 array = grid.cell(0);
580 void Parser::parse2(MathAtom & at, unsigned flags, mode_type mode,
583 parse1(*(at.nucleus()->asGridInset()), flags, mode, numbered);
587 void Parser::parse1(MathGridInset & grid, unsigned flags,
588 mode_type mode, bool numbered)
591 MathGridInset::row_type cellrow = 0;
592 MathGridInset::col_type cellcol = 0;
593 MathArray * cell = &grid.cell(grid.index(cellrow, cellcol));
595 if (grid.asHullInset())
596 grid.asHullInset()->numbered(cellrow, numbered);
599 //lyxerr << "grid: " << grid << endl;
602 Token const & t = getToken();
605 lyxerr << "t: " << t << " flags: " << flags << "\n";
610 if (flags & FLAG_ITEM) {
611 if (t.cat() == catSpace)
615 if (t.cat() == catBegin) {
616 // skip the brace and collect everything to the next matching
618 flags |= FLAG_BRACE_LAST;
622 // handle only this single token, leave the loop if done
627 if (flags & FLAG_BRACED) {
628 if (t.cat() == catSpace)
631 if (t.cat() != catBegin) {
632 error("opening brace expected");
636 // skip the brace and collect everything to the next matching
638 flags = FLAG_BRACE_LAST;
642 if (flags & FLAG_OPTION) {
643 if (t.cat() == catOther && t.character() == '[') {
645 parse(ar, FLAG_BRACK_LAST, mode);
648 // no option found, put back token and we are done
657 if (t.cat() == catMath) {
658 if (mode != MathInset::MATH_MODE) {
659 // we are inside some text mode thingy, so opening new math is allowed
660 Token const & n = getToken();
661 if (n.cat() == catMath) {
662 // TeX's $$...$$ syntax for displayed math
663 cell->push_back(MathAtom(new MathHullInset("equation")));
664 parse2(cell->back(), FLAG_SIMPLE, MathInset::MATH_MODE, false);
665 getToken(); // skip the second '$' token
667 // simple $...$ stuff
669 cell->push_back(MathAtom(new MathHullInset("simple")));
670 parse2(cell->back(), FLAG_SIMPLE, MathInset::MATH_MODE, false);
674 else if (flags & FLAG_SIMPLE) {
675 // this is the end of the formula
680 error("something strange in the parser\n");
685 else if (t.cat() == catLetter)
686 cell->push_back(MathAtom(new MathCharInset(t.character())));
688 else if (t.cat() == catSpace && mode != MathInset::MATH_MODE) {
689 if (cell->empty() || cell->back()->getChar() != ' ')
690 cell->push_back(MathAtom(new MathCharInset(t.character())));
693 else if (t.cat() == catNewline && mode != MathInset::MATH_MODE)
694 cell->push_back(MathAtom(new MathCharInset(t.character())));
696 else if (t.cat() == catParameter) {
697 Token const & n = getToken();
698 cell->push_back(MathAtom(new MathMacroArgument(n.character()-'0')));
701 else if (t.cat() == catActive)
702 cell->push_back(MathAtom(new MathCharInset(t.character())));
704 else if (t.cat() == catBegin) {
706 parse(ar, FLAG_BRACE_LAST, mode);
707 // do not create a BraceInset if they were written by LyX
708 // this helps to keep the annoyance of "a choose b" to a minimum
709 if (ar.size() == 1 && ar[0]->extraBraces())
712 cell->push_back(MathAtom(new MathBraceInset(ar)));
715 else if (t.cat() == catEnd) {
716 if (flags & FLAG_BRACE_LAST)
718 error("found '}' unexpectedly");
720 //add(cell, '}', LM_TC_TEX);
723 else if (t.cat() == catAlign) {
725 //lyxerr << " column now " << cellcol << " max: " << grid.ncols() << "\n";
726 if (cellcol == grid.ncols()) {
727 //lyxerr << "adding column " << cellcol << "\n";
728 grid.addCol(cellcol - 1);
730 cell = &grid.cell(grid.index(cellrow, cellcol));
733 else if (t.cat() == catSuper || t.cat() == catSub) {
734 bool up = (t.cat() == catSuper);
735 // we need no new script inset if the last thing was a scriptinset,
736 // which has that script already not the same script already
738 cell->push_back(MathAtom(new MathScriptInset(up)));
739 else if (cell->back()->asScriptInset() &&
740 !cell->back()->asScriptInset()->has(up))
741 cell->back().nucleus()->asScriptInset()->ensure(up);
742 else if (cell->back()->asScriptInset())
743 cell->push_back(MathAtom(new MathScriptInset(up)));
745 cell->back() = MathAtom(new MathScriptInset(cell->back(), up));
746 MathScriptInset * p = cell->back().nucleus()->asScriptInset();
747 // special handling of {}-bases
748 // is this always correct?
749 if (p->nuc().size() == 1 && p->nuc().back()->asNestInset() &&
750 p->nuc().back()->extraBraces())
751 p->nuc() = p->nuc().back()->asNestInset()->cell(0);
752 parse(p->cell(up), FLAG_ITEM, mode);
759 else if (t.character() == ']' && (flags & FLAG_BRACK_LAST)) {
760 //lyxerr << "finished reading option\n";
764 else if (t.cat() == catOther)
765 cell->push_back(MathAtom(new MathCharInset(t.character())));
767 else if (t.cat() == catComment) {
770 Token const & t = getToken();
771 if (t.cat() == catNewline)
775 cell->push_back(MathAtom(new MathCommentInset(s)));
783 else if (t.cs() == "lyxlock") {
785 cell->back().nucleus()->lock(true);
788 else if (t.cs() == "def" || t.cs() == "newcommand") {
791 if (t.cs() == "def") {
793 name = getToken().cs();
797 while (good() && nextToken().cat() != catBegin) {
798 pars += getToken().cs();
802 //lyxerr << "read \\def parameter list '" << pars << "'\n";
804 } else { // t.cs() == "newcommand"
806 if (getToken().cat() != catBegin) {
807 error("'{' in \\newcommand expected (1) \n");
811 name = getToken().cs();
813 if (getToken().cat() != catEnd) {
814 error("'}' in \\newcommand expected\n");
818 string arg = getArg('[', ']');
820 nargs = atoi(arg.c_str());
825 parse(ar1, FLAG_ITEM, MathInset::UNDECIDED_MODE);
827 // we cannot handle recursive stuff at all
829 //test.push_back(createMathInset(name));
830 //if (ar1.contains(test)) {
831 // error("we cannot handle recursive macros at all.\n");
835 // is a version for display attached?
838 if (nextToken().cat() == catBegin) {
839 parse(ar2, FLAG_ITEM, MathInset::MATH_MODE);
842 cell->push_back(MathAtom(new MathMacroTemplate(name, nargs, ar1, ar2)));
845 else if (t.cs() == "(") {
846 cell->push_back(MathAtom(new MathHullInset("simple")));
847 parse2(cell->back(), FLAG_SIMPLE2, MathInset::MATH_MODE, false);
850 else if (t.cs() == "[") {
851 cell->push_back(MathAtom(new MathHullInset("equation")));
852 parse2(cell->back(), FLAG_EQUATION, MathInset::MATH_MODE, false);
855 else if (t.cs() == "protect")
856 // ignore \\protect, will hopefully be re-added during output
859 else if (t.cs() == "end") {
860 if (flags & FLAG_END) {
861 // eat environment name
862 //string const name =
864 // FIXME: check that we ended the correct environment
867 error("found 'end' unexpectedly");
870 else if (t.cs() == ")") {
871 if (flags & FLAG_SIMPLE2)
873 error("found '\\)' unexpectedly");
876 else if (t.cs() == "]") {
877 if (flags & FLAG_EQUATION)
879 error("found '\\]' unexpectedly");
882 else if (t.cs() == "\\") {
883 grid.vcrskip(LyXLength(getArg('[', ']')), cellrow);
886 if (cellrow == grid.nrows())
887 grid.addRow(cellrow - 1);
888 if (grid.asHullInset())
889 grid.asHullInset()->numbered(cellrow, numbered);
890 cell = &grid.cell(grid.index(cellrow, cellcol));
894 else if (t.cs() == "multicolumn") {
895 // extract column count and insert dummy cells
897 parse(count, FLAG_ITEM, mode);
899 if (!extractNumber(count, cols)) {
900 lyxerr << " can't extract number of cells from " << count << "\n";
902 // resize the table if necessary
903 for (int i = 0; i < cols; ++i) {
905 if (cellcol == grid.ncols()) {
906 //lyxerr << "adding column " << cellcol << "\n";
907 grid.addCol(cellcol - 1);
909 cell = &grid.cell(grid.index(cellrow, cellcol));
910 // mark this as dummy
911 grid.cellinfo(grid.index(cellrow, cellcol)).dummy_ = true;
913 // the last cell is the real thng, not a dummy
914 grid.cellinfo(grid.index(cellrow, cellcol)).dummy_ = false;
916 // read special alignment
918 parse(align, FLAG_ITEM, mode);
919 //grid.cellinfo(grid.index(cellrow, cellcol)).align_ = extractString(align);
921 // parse the remaining contents into the "real" cell
922 parse(*cell, FLAG_ITEM, mode);
926 else if (t.cs() == "limits")
929 else if (t.cs() == "nolimits")
932 else if (t.cs() == "nonumber") {
933 if (grid.asHullInset())
934 grid.asHullInset()->numbered(cellrow, false);
937 else if (t.cs() == "number") {
938 if (grid.asHullInset())
939 grid.asHullInset()->numbered(cellrow, true);
942 else if (t.cs() == "hline") {
943 grid.rowinfo(cellrow).lines_ ++;
946 else if (t.cs() == "sqrt") {
948 parse(ar, FLAG_OPTION, mode);
950 cell->push_back(MathAtom(new MathRootInset));
951 cell->back().nucleus()->cell(0) = ar;
952 parse(cell->back().nucleus()->cell(1), FLAG_ITEM, mode);
954 cell->push_back(MathAtom(new MathSqrtInset));
955 parse(cell->back().nucleus()->cell(0), FLAG_ITEM, mode);
959 else if (t.cs() == "ref") {
960 cell->push_back(MathAtom(new RefInset));
961 parse(cell->back().nucleus()->cell(1), FLAG_OPTION, mode);
962 parse(cell->back().nucleus()->cell(0), FLAG_ITEM, mode);
965 else if (t.cs() == "left") {
966 string l = getToken().asString();
968 parse(ar, FLAG_RIGHT, mode);
969 string r = getToken().asString();
970 cell->push_back(MathAtom(new MathDelimInset(l, r, ar)));
973 else if (t.cs() == "right") {
974 if (flags & FLAG_RIGHT)
976 //lyxerr << "got so far: '" << cell << "'\n";
977 error("Unmatched right delimiter");
981 else if (t.cs() == "begin") {
982 string const name = getArg('{', '}');
984 if (name == "array" || name == "subarray") {
985 string const valign = parse_verbatim_option() + 'c';
986 string const halign = parse_verbatim_item();
987 cell->push_back(MathAtom(new MathArrayInset(name, valign[0], halign)));
988 parse2(cell->back(), FLAG_END, mode, false);
991 else if (name == "split" || name == "cases" ||
992 name == "gathered" || name == "aligned") {
993 cell->push_back(createMathInset(name));
994 parse2(cell->back(), FLAG_END, mode, false);
997 else if (name == "math") {
998 cell->push_back(MathAtom(new MathHullInset("simple")));
999 parse2(cell->back(), FLAG_END, MathInset::MATH_MODE, true);
1002 else if (name == "equation" || name == "equation*"
1003 || name == "displaymath") {
1004 cell->push_back(MathAtom(new MathHullInset("equation")));
1005 parse2(cell->back(), FLAG_END, MathInset::MATH_MODE, (name == "equation"));
1008 else if (name == "eqnarray" || name == "eqnarray*") {
1009 cell->push_back(MathAtom(new MathHullInset("eqnarray")));
1010 parse2(cell->back(), FLAG_END, MathInset::MATH_MODE, !stared(name));
1013 else if (name == "align" || name == "align*") {
1014 cell->push_back(MathAtom(new MathHullInset("align")));
1015 parse2(cell->back(), FLAG_END, MathInset::MATH_MODE, !stared(name));
1018 else if (name == "flalign" || name == "flalign*") {
1019 cell->push_back(MathAtom(new MathHullInset("flalign")));
1020 parse2(cell->back(), FLAG_END, MathInset::MATH_MODE, !stared(name));
1023 else if (name == "alignat" || name == "alignat*") {
1024 // ignore this for a while
1026 cell->push_back(MathAtom(new MathHullInset("alignat")));
1027 parse2(cell->back(), FLAG_END, MathInset::MATH_MODE, !stared(name));
1030 else if (name == "xalignat" || name == "xalignat*") {
1031 // ignore this for a while
1033 cell->push_back(MathAtom(new MathHullInset("xalignat")));
1034 parse2(cell->back(), FLAG_END, MathInset::MATH_MODE, !stared(name));
1037 else if (name == "xxalignat") {
1038 // ignore this for a while
1040 cell->push_back(MathAtom(new MathHullInset("xxalignat")));
1041 parse2(cell->back(), FLAG_END, MathInset::MATH_MODE, !stared(name));
1044 else if (name == "multline" || name == "multline*") {
1045 cell->push_back(MathAtom(new MathHullInset("multline")));
1046 parse2(cell->back(), FLAG_END, MathInset::MATH_MODE, !stared(name));
1049 else if (name == "gather" || name == "gather*") {
1050 cell->push_back(MathAtom(new MathHullInset("gather")));
1051 parse2(cell->back(), FLAG_END, MathInset::MATH_MODE, !stared(name));
1054 else if (latexkeys const * l = in_word_set(name)) {
1055 if (l->inset == "matrix") {
1056 cell->push_back(createMathInset(name));
1057 parse2(cell->back(), FLAG_END, mode, false);
1062 // lyxerr << "unknow math inset begin '" << name << "'\n";
1063 // create generic environment inset
1064 cell->push_back(MathAtom(new MathEnvInset(name)));
1065 parse(cell->back().nucleus()->cell(0), FLAG_END, mode);
1069 else if (t.cs() == "kern") {
1070 #ifdef WITH_WARNINGS
1075 Token const & t = getToken();
1081 if (isValidLength(s))
1084 cell->push_back(MathAtom(new MathKernInset(s)));
1087 else if (t.cs() == "label") {
1088 string label = parse_verbatim_item();
1089 if (grid.asHullInset()) {
1090 grid.asHullInset()->label(cellrow, label);
1092 cell->push_back(createMathInset(t.cs()));
1093 cell->push_back(MathAtom(new MathBraceInset(asArray(label))));
1097 else if (t.cs() == "choose" || t.cs() == "over" || t.cs() == "atop") {
1098 MathAtom at = createMathInset(t.cs());
1099 at.nucleus()->cell(0) = *cell;
1101 parse(at.nucleus()->cell(1), flags, mode);
1102 cell->push_back(at);
1106 else if (t.cs() == "substack") {
1107 cell->push_back(createMathInset(t.cs()));
1108 parse2(cell->back(), FLAG_ITEM, mode, false);
1111 else if (t.cs() == "xymatrix") {
1112 cell->push_back(createMathInset(t.cs()));
1113 parse2(cell->back(), FLAG_ITEM, mode, false);
1116 else if (t.cs() == "framebox") {
1117 cell->push_back(createMathInset(t.cs()));
1118 parse(cell->back().nucleus()->cell(0), FLAG_OPTION, mode);
1119 parse(cell->back().nucleus()->cell(1), FLAG_ITEM, mode);
1123 else if (t.cs() == "infer") {
1125 parse(ar, FLAG_OPTION, mode);
1126 cell->push_back(createMathInset(t.cs()));
1127 parse2(cell->back(), FLAG_ITEM, mode, false);
1131 else if (1 && t.cs() == "ar") {
1132 MathXYArrowInset * p = new MathXYArrowInset;
1133 // try to read target
1134 parse(p->cell(0), FLAG_OTPTION, mode);
1135 // try to read label
1136 if (nextToken().cat() == catSuper || nextToken().cat() == catSub) {
1137 p->up_ = nextToken().cat() == catSuper;
1139 parse(p->cell(1), FLAG_ITEM, mode);
1140 //lyxerr << "read label: " << p->cell(1) << "\n";
1143 cell->push_back(MathAtom(p));
1144 //lyxerr << "read cell: " << cell << "\n";
1148 else if (t.cs().size()) {
1149 latexkeys const * l = in_word_set(t.cs());
1151 if (l->inset == "font") {
1152 cell->push_back(createMathInset(t.cs()));
1153 parse(cell->back().nucleus()->cell(0), FLAG_ITEM, asMode(mode, l->extra));
1156 else if (l->inset == "oldfont") {
1157 cell->push_back(createMathInset(t.cs()));
1158 parse(cell->back().nucleus()->cell(0), flags, asMode(mode, l->extra));
1162 else if (l->inset == "style") {
1163 cell->push_back(createMathInset(t.cs()));
1164 parse(cell->back().nucleus()->cell(0), flags, mode);
1168 else if (l->inset == "parbox") {
1169 // read optional positioning and width
1170 string pos = parse_verbatim_option();
1171 string width = parse_verbatim_item();
1172 cell->push_back(createMathInset(t.cs()));
1173 parse(cell->back().nucleus()->cell(0), FLAG_ITEM, MathInset::TEXT_MODE);
1174 cell->back().nucleus()->asParboxInset()->setPosition(pos);
1175 cell->back().nucleus()->asParboxInset()->setWidth(width);
1179 MathAtom at = createMathInset(t.cs());
1180 for (MathInset::idx_type i = 0; i < at->nargs(); ++i)
1181 parse(at.nucleus()->cell(i), FLAG_ITEM, asMode(mode, l->extra));
1182 cell->push_back(at);
1187 MathAtom at = createMathInset(t.cs());
1188 MathInset::mode_type m = mode;
1189 if (m == MathInset::UNDECIDED_MODE)
1190 m = at->currentMode();
1191 MathInset::idx_type start = 0;
1192 // this fails on \bigg[...\bigg]
1194 //parse(opt, FLAG_OPTION, MathInset::VERBATIM_MODE);
1197 // at.nucleus()->cell(0) = opt;
1199 for (MathInset::idx_type i = start; i < at->nargs(); ++i)
1200 parse(at.nucleus()->cell(i), FLAG_ITEM, m);
1201 cell->push_back(at);
1206 if (flags & FLAG_LEAVE) {
1207 flags &= ~FLAG_LEAVE;
1215 } // anonymous namespace
1218 void mathed_parse_cell(MathArray & ar, string const & str)
1220 istringstream is(str.c_str());
1221 mathed_parse_cell(ar, is);
1225 void mathed_parse_cell(MathArray & ar, istream & is)
1227 Parser(is).parse(ar, 0, MathInset::MATH_MODE);
1231 bool mathed_parse_normal(MathAtom & t, string const & str)
1233 istringstream is(str.c_str());
1234 return Parser(is).parse(t);
1238 bool mathed_parse_normal(MathAtom & t, istream & is)
1240 return Parser(is).parse(t);
1244 bool mathed_parse_normal(MathAtom & t, LyXLex & lex)
1246 return Parser(lex).parse(t);
1250 void mathed_parse_normal(MathGridInset & grid, string const & str)
1252 istringstream is(str.c_str());
1253 Parser(is).parse1(grid, 0, MathInset::MATH_MODE, false);