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_colorinset.h"
46 #include "math_commentinset.h"
47 #include "math_deliminset.h"
48 #include "math_envinset.h"
49 #include "math_factory.h"
50 #include "math_kerninset.h"
51 #include "math_macro.h"
52 #include "math_macroarg.h"
53 #include "math_macrotemplate.h"
54 #include "math_parinset.h"
55 #include "math_rootinset.h"
56 #include "math_scriptinset.h"
57 #include "math_sqrtinset.h"
58 #include "math_support.h"
59 #include "math_tabularinset.h"
61 //#include "insets/insetref.h"
62 #include "ref_inset.h"
67 #include "support/convert.h"
77 using std::istringstream;
87 MathInset::mode_type asMode(MathInset::mode_type oldmode, string const & str)
89 //lyxerr << "handling mode: '" << str << "'" << endl;
90 if (str == "mathmode")
91 return MathInset::MATH_MODE;
92 if (str == "textmode" || str == "forcetext")
93 return MathInset::TEXT_MODE;
98 bool stared(string const & s)
100 string::size_type const n = s.size();
101 return n && s[n - 1] == '*';
106 * Add the row \p cellrow to \p grid.
107 * \returns wether the row could be added. Adding a row can fail for
108 * environments like "equation" that have a fixed number of rows.
110 bool addRow(MathGridInset & grid, MathGridInset::row_type & cellrow,
111 string const & vskip)
114 if (cellrow == grid.nrows()) {
115 //lyxerr << "adding row " << cellrow << endl;
116 grid.addRow(cellrow - 1);
117 if (cellrow == grid.nrows()) {
118 // We can't add a row to this grid, so let's
119 // append the content of this cell to the previous
121 // This does not happen in well formed .lyx files,
122 // but LyX versions 1.3.x and older could create
123 // such files and tex2lyx can still do that.
125 lyxerr << "ignoring extra row";
127 lyxerr << " with extra space " << vskip;
128 lyxerr << '.' << endl;
132 grid.vcrskip(LyXLength(vskip), cellrow - 1);
138 * Add the column \p cellcol to \p grid.
139 * \returns wether the column could be added. Adding a column can fail for
140 * environments like "eqnarray" that have a fixed number of columns.
142 bool addCol(MathGridInset & grid, MathGridInset::col_type & cellcol)
145 if (cellcol == grid.ncols()) {
146 //lyxerr << "adding column " << cellcol << endl;
147 grid.addCol(cellcol - 1);
148 if (cellcol == grid.ncols()) {
149 // We can't add a column to this grid, so let's
150 // append the content of this cell to the previous
152 // This does not happen in well formed .lyx files,
153 // but LyX versions 1.3.x and older could create
154 // such files and tex2lyx can still do that.
156 lyxerr << "ignoring extra column." << endl;
165 * Check wether the last row is empty and remove it if yes.
166 * Otherwise the following code
174 * will result in a grid with 3 rows (+ the dummy row that is always present),
175 * because the last '\\' opens a new row.
177 void delEmptyLastRow(MathGridInset & grid)
179 MathGridInset::row_type const row = grid.nrows() - 1;
180 for (MathGridInset::col_type col = 0; col < grid.ncols(); ++col) {
181 if (!grid.cell(grid.index(row, col)).empty())
184 // Remove the dummy row, so that the previous last row (that would
185 // contain the last hline in the example above) becomes the dummy row.
186 grid.delRow(row + 1);
190 // These are TeX's catcodes
192 catEscape, // 0 backslash
202 catSpace, // 10 space
203 catLetter, // 11 a-zA-Z
204 catOther, // 12 none of the above
207 catInvalid // 15 <delete>
210 CatCode theCatcode[256];
213 inline CatCode catcode(unsigned char c)
215 return theCatcode[c];
220 FLAG_ALIGN = 1 << 0, // next & or \\ ends the parsing process
221 FLAG_BRACE_LAST = 1 << 1, // next closing brace ends the parsing
222 FLAG_RIGHT = 1 << 2, // next \\right ends the parsing process
223 FLAG_END = 1 << 3, // next \\end ends the parsing process
224 FLAG_BRACK_LAST = 1 << 4, // next closing bracket ends the parsing
225 FLAG_TEXTMODE = 1 << 5, // we are in a box
226 FLAG_ITEM = 1 << 6, // read a (possibly braced token)
227 FLAG_LEAVE = 1 << 7, // leave the loop at the end
228 FLAG_SIMPLE = 1 << 8, // next $ leaves the loop
229 FLAG_EQUATION = 1 << 9, // next \] leaves the loop
230 FLAG_SIMPLE2 = 1 << 10, // next \) leaves the loop
231 FLAG_OPTION = 1 << 11, // read [...] style option
232 FLAG_BRACED = 1 << 12 // read {...} style argument
237 // Helper class for parsing
243 Token() : cs_(), char_(0), cat_(catIgnore) {}
245 Token(char c, CatCode cat) : cs_(), char_(c), cat_(cat) {}
247 Token(string const & cs) : cs_(cs), char_(0), cat_(catIgnore) {}
250 string const & cs() const { return cs_; }
252 CatCode cat() const { return cat_; }
254 char character() const { return char_; }
256 string asString() const { return cs_.size() ? cs_ : string(1, char_); }
267 ostream & operator<<(ostream & os, Token const & t)
270 os << '\\' << t.cs();
271 else if (t.cat() == catLetter)
274 os << '[' << t.character() << ',' << t.cat() << ']';
282 typedef MathInset::mode_type mode_type;
285 Parser(LyXLex & lex);
287 Parser(istream & is);
290 bool parse(MathAtom & at);
292 void parse(MathArray & array, unsigned flags, mode_type mode);
294 void parse1(MathGridInset & grid, unsigned flags, mode_type mode,
297 MathArray parse(unsigned flags, mode_type mode);
299 int lineno() const { return lineno_; }
305 void parse2(MathAtom & at, unsigned flags, mode_type mode, bool numbered);
306 /// get arg delimited by 'left' and 'right'
307 string getArg(char left, char right);
311 void error(string const & msg);
312 /// dump contents to screen
315 void tokenize(istream & is);
317 void tokenize(string const & s);
319 void skipSpaceTokens(istream & is, char c);
321 void push_back(Token const & t);
325 Token const & prevToken() const;
327 Token const & nextToken() const;
329 Token const & getToken();
330 /// skips spaces if any
333 void lex(string const & s);
337 string parse_verbatim_item();
339 string parse_verbatim_option();
344 vector<Token> tokens_;
347 /// Stack of active environments
348 vector<string> environments_;
352 Parser::Parser(LyXLex & lexer)
353 : lineno_(lexer.getLineNo()), pos_(0)
355 tokenize(lexer.getStream());
360 Parser::Parser(istream & is)
361 : lineno_(0), pos_(0)
367 void Parser::push_back(Token const & t)
369 tokens_.push_back(t);
373 void Parser::pop_back()
379 Token const & Parser::prevToken() const
381 static const Token dummy;
382 return pos_ > 0 ? tokens_[pos_ - 1] : dummy;
386 Token const & Parser::nextToken() const
388 static const Token dummy;
389 return good() ? tokens_[pos_] : dummy;
393 Token const & Parser::getToken()
395 static const Token dummy;
396 //lyxerr << "looking at token " << tokens_[pos_] << " pos: " << pos_ << endl;
397 return good() ? tokens_[pos_++] : dummy;
401 void Parser::skipSpaces()
403 while (nextToken().cat() == catSpace || nextToken().cat() == catNewline)
408 void Parser::putback()
414 bool Parser::good() const
416 return pos_ < tokens_.size();
420 char Parser::getChar()
423 error("The input stream is not well...");
424 return tokens_[pos_++].character();
428 string Parser::getArg(char left, char right)
438 while ((c = getChar()) != right && good())
445 void Parser::skipSpaceTokens(istream & is, char c)
447 // skip trailing spaces
448 while (catcode(c) == catSpace || catcode(c) == catNewline)
451 //lyxerr << "putting back: " << c << endl;
456 void Parser::tokenize(istream & is)
458 // eat everything up to the next \end_inset or end of stream
459 // and store it in s for further tokenization
464 if (s.size() >= 10 && s.substr(s.size() - 10) == "\\end_inset") {
465 s = s.substr(0, s.size() - 10);
469 // Remove the space after \end_inset
470 if (is.get(c) && c != ' ')
478 void Parser::tokenize(string const & buffer)
480 istringstream is(buffer, ios::in | ios::binary);
484 //lyxerr << "reading c: " << c << endl;
486 switch (catcode(c)) {
490 if (catcode(c) == catNewline)
491 ; //push_back(Token("par"));
493 push_back(Token('\n', catNewline));
501 while (is.get(c) && catcode(c) != catNewline)
511 error("unexpected end of input");
514 if (catcode(c) == catLetter) {
516 while (is.get(c) && catcode(c) == catLetter)
518 skipSpaceTokens(is, c);
527 push_back(Token(c, catcode(c)));
529 skipSpaceTokens(is, c);
534 lyxerr << "ignoring a char: " << int(c) << endl;
539 push_back(Token(c, catcode(c)));
549 void Parser::dump() const
551 lyxerr << "\nTokens: ";
552 for (unsigned i = 0; i < tokens_.size(); ++i) {
555 lyxerr << tokens_[i];
557 lyxerr << " pos: " << pos_ << endl;
561 void Parser::error(string const & msg)
563 lyxerr << "Line ~" << lineno_ << ": Math parse error: " << msg << endl;
569 bool Parser::parse(MathAtom & at)
573 parse(ar, false, MathInset::UNDECIDED_MODE);
574 if (ar.size() != 1 || ar.front()->getType() == "none") {
575 lyxerr << "unusual contents found: " << ar << endl;
576 at = MathAtom(new MathParInset(ar));
577 //if (at->nargs() > 0)
578 // at.nucleus()->cell(0) = ar;
580 // lyxerr << "unusual contents found: " << ar << endl;
588 string Parser::parse_verbatim_option()
592 if (nextToken().character() == '[') {
593 Token t = getToken();
594 for (Token t = getToken(); t.character() != ']' && good(); t = getToken()) {
595 if (t.cat() == catBegin) {
597 res += '{' + parse_verbatim_item() + '}';
606 string Parser::parse_verbatim_item()
610 if (nextToken().cat() == catBegin) {
611 Token t = getToken();
612 for (Token t = getToken(); t.cat() != catEnd && good(); t = getToken()) {
613 if (t.cat() == catBegin) {
615 res += '{' + parse_verbatim_item() + '}';
625 MathArray Parser::parse(unsigned flags, mode_type mode)
628 parse(ar, flags, mode);
633 void Parser::parse(MathArray & array, unsigned flags, mode_type mode)
635 MathGridInset grid(1, 1);
636 parse1(grid, flags, mode, false);
637 array = grid.cell(0);
641 void Parser::parse2(MathAtom & at, const unsigned flags, const mode_type mode,
644 parse1(*(at.nucleus()->asGridInset()), flags, mode, numbered);
648 void Parser::parse1(MathGridInset & grid, unsigned flags,
649 const mode_type mode, const bool numbered)
652 MathGridInset::row_type cellrow = 0;
653 MathGridInset::col_type cellcol = 0;
654 MathArray * cell = &grid.cell(grid.index(cellrow, cellcol));
656 if (grid.asHullInset())
657 grid.asHullInset()->numbered(cellrow, numbered);
660 //lyxerr << " flags: " << flags << endl;
661 //lyxerr << " mode: " << mode << endl;
662 //lyxerr << "grid: " << grid << endl;
665 Token const & t = getToken();
668 lyxerr << "t: " << t << " flags: " << flags << endl;
669 lyxerr << "mode: " << mode << endl;
674 if (flags & FLAG_ITEM) {
676 if (t.cat() == catBegin) {
677 // skip the brace and collect everything to the next matching
679 parse1(grid, FLAG_BRACE_LAST, mode, numbered);
683 // handle only this single token, leave the loop if done
688 if (flags & FLAG_BRACED) {
689 if (t.cat() == catSpace)
692 if (t.cat() != catBegin) {
693 error("opening brace expected");
697 // skip the brace and collect everything to the next matching
699 flags = FLAG_BRACE_LAST;
703 if (flags & FLAG_OPTION) {
704 if (t.cat() == catOther && t.character() == '[') {
706 parse(ar, FLAG_BRACK_LAST, mode);
709 // no option found, put back token and we are done
718 if (t.cat() == catMath) {
719 if (mode != MathInset::MATH_MODE) {
720 // we are inside some text mode thingy, so opening new math is allowed
721 Token const & n = getToken();
722 if (n.cat() == catMath) {
723 // TeX's $$...$$ syntax for displayed math
724 cell->push_back(MathAtom(new MathHullInset("equation")));
725 parse2(cell->back(), FLAG_SIMPLE, MathInset::MATH_MODE, false);
726 getToken(); // skip the second '$' token
728 // simple $...$ stuff
730 cell->push_back(MathAtom(new MathHullInset("simple")));
731 parse2(cell->back(), FLAG_SIMPLE, MathInset::MATH_MODE, false);
735 else if (flags & FLAG_SIMPLE) {
736 // this is the end of the formula
741 error("something strange in the parser");
746 else if (t.cat() == catLetter)
747 cell->push_back(MathAtom(new MathCharInset(t.character())));
749 else if (t.cat() == catSpace && mode != MathInset::MATH_MODE) {
750 if (cell->empty() || cell->back()->getChar() != ' ')
751 cell->push_back(MathAtom(new MathCharInset(t.character())));
754 else if (t.cat() == catNewline && mode != MathInset::MATH_MODE) {
755 if (cell->empty() || cell->back()->getChar() != ' ')
756 cell->push_back(MathAtom(new MathCharInset(' ')));
759 else if (t.cat() == catParameter) {
760 Token const & n = getToken();
761 cell->push_back(MathAtom(new MathMacroArgument(n.character()-'0')));
764 else if (t.cat() == catActive)
765 cell->push_back(MathAtom(new MathCharInset(t.character())));
767 else if (t.cat() == catBegin) {
769 parse(ar, FLAG_BRACE_LAST, mode);
770 // do not create a BraceInset if they were written by LyX
771 // this helps to keep the annoyance of "a choose b" to a minimum
772 if (ar.size() == 1 && ar[0]->extraBraces())
775 cell->push_back(MathAtom(new MathBraceInset(ar)));
778 else if (t.cat() == catEnd) {
779 if (flags & FLAG_BRACE_LAST)
781 error("found '}' unexpectedly");
782 //BOOST_ASSERT(false);
783 //add(cell, '}', LM_TC_TEX);
786 else if (t.cat() == catAlign) {
787 //lyxerr << " column now " << (cellcol + 1)
788 // << " max: " << grid.ncols() << endl;
789 if (flags & FLAG_ALIGN)
791 if (addCol(grid, cellcol))
792 cell = &grid.cell(grid.index(cellrow, cellcol));
795 else if (t.cat() == catSuper || t.cat() == catSub) {
796 bool up = (t.cat() == catSuper);
797 // we need no new script inset if the last thing was a scriptinset,
798 // which has that script already not the same script already
800 cell->push_back(MathAtom(new MathScriptInset(up)));
801 else if (cell->back()->asScriptInset() &&
802 !cell->back()->asScriptInset()->has(up))
803 cell->back().nucleus()->asScriptInset()->ensure(up);
804 else if (cell->back()->asScriptInset())
805 cell->push_back(MathAtom(new MathScriptInset(up)));
807 cell->back() = MathAtom(new MathScriptInset(cell->back(), up));
808 MathScriptInset * p = cell->back().nucleus()->asScriptInset();
809 // special handling of {}-bases
810 // is this always correct?
811 // It appears that this is wrong (Dekel)
812 //if (p->nuc().size() == 1 && p->nuc().back()->asNestInset() &&
813 // p->nuc().back()->extraBraces())
814 // p->nuc() = p->nuc().back()->asNestInset()->cell(0);
815 parse(p->cell(p->idxOfScript(up)), FLAG_ITEM, mode);
822 else if (t.character() == ']' && (flags & FLAG_BRACK_LAST)) {
823 //lyxerr << "finished reading option" << endl;
827 else if (t.cat() == catOther)
828 cell->push_back(MathAtom(new MathCharInset(t.character())));
830 else if (t.cat() == catComment) {
833 Token const & t = getToken();
834 if (t.cat() == catNewline)
838 cell->push_back(MathAtom(new MathCommentInset(s)));
846 else if (t.cs() == "lyxlock") {
848 cell->back().nucleus()->lock(true);
851 else if (t.cs() == "def" ||
852 t.cs() == "newcommand" ||
853 t.cs() == "renewcommand")
855 string const type = t.cs();
858 if (t.cs() == "def") {
860 name = getToken().cs();
864 while (good() && nextToken().cat() != catBegin) {
865 pars += getToken().cs();
869 //lyxerr << "read \\def parameter list '" << pars << "'" << endl;
871 } else { // t.cs() == "newcommand" || t.cs() == "renewcommand"
873 if (getToken().cat() != catBegin) {
874 error("'{' in \\newcommand expected (1) ");
878 name = getToken().cs();
880 if (getToken().cat() != catEnd) {
881 error("'}' in \\newcommand expected");
885 string const arg = getArg('[', ']');
887 nargs = convert<int>(arg);
892 parse(ar1, FLAG_ITEM, MathInset::UNDECIDED_MODE);
894 // we cannot handle recursive stuff at all
896 //test.push_back(createMathInset(name));
897 //if (ar1.contains(test)) {
898 // error("we cannot handle recursive macros at all.");
902 // is a version for display attached?
905 if (nextToken().cat() == catBegin)
906 parse(ar2, FLAG_ITEM, MathInset::MATH_MODE);
908 cell->push_back(MathAtom(new MathMacroTemplate(name, nargs, type,
912 else if (t.cs() == "(") {
913 cell->push_back(MathAtom(new MathHullInset("simple")));
914 parse2(cell->back(), FLAG_SIMPLE2, MathInset::MATH_MODE, false);
917 else if (t.cs() == "[") {
918 cell->push_back(MathAtom(new MathHullInset("equation")));
919 parse2(cell->back(), FLAG_EQUATION, MathInset::MATH_MODE, false);
922 else if (t.cs() == "protect")
923 // ignore \\protect, will hopefully be re-added during output
926 else if (t.cs() == "end") {
927 if (flags & FLAG_END) {
928 // eat environment name
929 string const name = getArg('{', '}');
930 if (environments_.empty())
931 error("'found \\end{" + name +
932 "}' without matching '\\begin{" +
934 else if (name != environments_.back())
935 error("'\\end{" + name +
936 "}' does not match '\\begin{" +
937 environments_.back() + "}'");
939 environments_.pop_back();
940 // Delete empty last row in matrix
942 // If you abuse MathGridInset for
943 // non-matrix like structures you
944 // probably need to refine this test.
945 // Right now we only have to test for
946 // single line hull insets.
947 if (grid.nrows() > 1)
948 delEmptyLastRow(grid);
952 error("found 'end' unexpectedly");
955 else if (t.cs() == ")") {
956 if (flags & FLAG_SIMPLE2)
958 error("found '\\)' unexpectedly");
961 else if (t.cs() == "]") {
962 if (flags & FLAG_EQUATION)
964 error("found '\\]' unexpectedly");
967 else if (t.cs() == "\\") {
968 if (flags & FLAG_ALIGN)
970 if (addRow(grid, cellrow, getArg('[', ']'))) {
972 if (grid.asHullInset())
973 grid.asHullInset()->numbered(
975 cell = &grid.cell(grid.index(cellrow,
981 else if (t.cs() == "multicolumn") {
982 // extract column count and insert dummy cells
984 parse(count, FLAG_ITEM, mode);
986 if (!extractNumber(count, cols)) {
987 lyxerr << " can't extract number of cells from " << count << endl;
989 // resize the table if necessary
990 for (int i = 0; i < cols; ++i) {
991 if (addCol(grid, cellcol)) {
992 cell = &grid.cell(grid.index(
994 // mark this as dummy
995 grid.cellinfo(grid.index(
996 cellrow, cellcol)).dummy_ = true;
999 // the last cell is the real thing, not a dummy
1000 grid.cellinfo(grid.index(cellrow, cellcol)).dummy_ = false;
1002 // read special alignment
1004 parse(align, FLAG_ITEM, mode);
1005 //grid.cellinfo(grid.index(cellrow, cellcol)).align_ = extractString(align);
1007 // parse the remaining contents into the "real" cell
1008 parse(*cell, FLAG_ITEM, mode);
1012 else if (t.cs() == "limits")
1015 else if (t.cs() == "nolimits")
1018 else if (t.cs() == "nonumber") {
1019 if (grid.asHullInset())
1020 grid.asHullInset()->numbered(cellrow, false);
1023 else if (t.cs() == "number") {
1024 if (grid.asHullInset())
1025 grid.asHullInset()->numbered(cellrow, true);
1028 else if (t.cs() == "hline") {
1029 grid.rowinfo(cellrow).lines_ ++;
1032 else if (t.cs() == "sqrt") {
1034 parse(ar, FLAG_OPTION, mode);
1036 cell->push_back(MathAtom(new MathRootInset));
1037 cell->back().nucleus()->cell(0) = ar;
1038 parse(cell->back().nucleus()->cell(1), FLAG_ITEM, mode);
1040 cell->push_back(MathAtom(new MathSqrtInset));
1041 parse(cell->back().nucleus()->cell(0), FLAG_ITEM, mode);
1045 else if (t.cs() == "xrightarrow" || t.cs() == "xleftarrow") {
1046 cell->push_back(createMathInset(t.cs()));
1047 parse(cell->back().nucleus()->cell(1), FLAG_OPTION, mode);
1048 parse(cell->back().nucleus()->cell(0), FLAG_ITEM, mode);
1051 else if (t.cs() == "ref" || t.cs() == "prettyref" ||
1052 t.cs() == "pageref" || t.cs() == "vpageref" || t.cs() == "vref") {
1053 cell->push_back(MathAtom(new RefInset(t.cs())));
1054 parse(cell->back().nucleus()->cell(1), FLAG_OPTION, mode);
1055 parse(cell->back().nucleus()->cell(0), FLAG_ITEM, mode);
1058 else if (t.cs() == "left") {
1060 Token const & tl = getToken();
1061 // \| and \Vert are equivalent, and MathDelimInset
1063 // FIXME: fix this in MathDelimInset itself!
1064 string const l = tl.cs() == "|" ? "Vert" : tl.asString();
1066 parse(ar, FLAG_RIGHT, mode);
1068 Token const & tr = getToken();
1069 string const r = tr.cs() == "|" ? "Vert" : tr.asString();
1070 cell->push_back(MathAtom(new MathDelimInset(l, r, ar)));
1073 else if (t.cs() == "right") {
1074 if (flags & FLAG_RIGHT)
1076 //lyxerr << "got so far: '" << cell << "'" << endl;
1077 error("Unmatched right delimiter");
1081 else if (t.cs() == "begin") {
1082 string const name = getArg('{', '}');
1083 environments_.push_back(name);
1085 if (name == "array" || name == "subarray") {
1086 string const valign = parse_verbatim_option() + 'c';
1087 string const halign = parse_verbatim_item();
1088 cell->push_back(MathAtom(new MathArrayInset(name, valign[0], halign)));
1089 parse2(cell->back(), FLAG_END, mode, false);
1092 else if (name == "tabular") {
1093 string const valign = parse_verbatim_option() + 'c';
1094 string const halign = parse_verbatim_item();
1095 cell->push_back(MathAtom(new MathTabularInset(name, valign[0], halign)));
1096 parse2(cell->back(), FLAG_END, MathInset::TEXT_MODE, false);
1099 else if (name == "split" || name == "cases" ||
1100 name == "gathered" || name == "aligned") {
1101 cell->push_back(createMathInset(name));
1102 parse2(cell->back(), FLAG_END, mode, false);
1105 else if (name == "alignedat") {
1106 // ignore this for a while
1108 cell->push_back(createMathInset(name));
1109 parse2(cell->back(), FLAG_END, mode, false);
1112 else if (name == "math") {
1113 cell->push_back(MathAtom(new MathHullInset("simple")));
1114 parse2(cell->back(), FLAG_END, MathInset::MATH_MODE, true);
1117 else if (name == "equation" || name == "equation*"
1118 || name == "displaymath") {
1119 cell->push_back(MathAtom(new MathHullInset("equation")));
1120 parse2(cell->back(), FLAG_END, MathInset::MATH_MODE, (name == "equation"));
1123 else if (name == "eqnarray" || name == "eqnarray*") {
1124 cell->push_back(MathAtom(new MathHullInset("eqnarray")));
1125 parse2(cell->back(), FLAG_END, MathInset::MATH_MODE, !stared(name));
1128 else if (name == "align" || name == "align*") {
1129 cell->push_back(MathAtom(new MathHullInset("align")));
1130 parse2(cell->back(), FLAG_END, MathInset::MATH_MODE, !stared(name));
1133 else if (name == "flalign" || name == "flalign*") {
1134 cell->push_back(MathAtom(new MathHullInset("flalign")));
1135 parse2(cell->back(), FLAG_END, MathInset::MATH_MODE, !stared(name));
1138 else if (name == "alignat" || name == "alignat*") {
1139 // ignore this for a while
1141 cell->push_back(MathAtom(new MathHullInset("alignat")));
1142 parse2(cell->back(), FLAG_END, MathInset::MATH_MODE, !stared(name));
1145 else if (name == "xalignat" || name == "xalignat*") {
1146 // ignore this for a while
1148 cell->push_back(MathAtom(new MathHullInset("xalignat")));
1149 parse2(cell->back(), FLAG_END, MathInset::MATH_MODE, !stared(name));
1152 else if (name == "xxalignat") {
1153 // ignore this for a while
1155 cell->push_back(MathAtom(new MathHullInset("xxalignat")));
1156 parse2(cell->back(), FLAG_END, MathInset::MATH_MODE, !stared(name));
1159 else if (name == "multline" || name == "multline*") {
1160 cell->push_back(MathAtom(new MathHullInset("multline")));
1161 parse2(cell->back(), FLAG_END, MathInset::MATH_MODE, !stared(name));
1164 else if (name == "gather" || name == "gather*") {
1165 cell->push_back(MathAtom(new MathHullInset("gather")));
1166 parse2(cell->back(), FLAG_END, MathInset::MATH_MODE, !stared(name));
1169 else if (latexkeys const * l = in_word_set(name)) {
1170 if (l->inset == "matrix") {
1171 cell->push_back(createMathInset(name));
1172 parse2(cell->back(), FLAG_END, mode, false);
1178 lyxerr << "found unknown math environment '" << name << "'" << endl;
1179 // create generic environment inset
1180 cell->push_back(MathAtom(new MathEnvInset(name)));
1181 parse(cell->back().nucleus()->cell(0), FLAG_ITEM, mode);
1185 else if (t.cs() == "kern") {
1186 #ifdef WITH_WARNINGS
1191 Token const & t = getToken();
1197 if (isValidLength(s))
1200 cell->push_back(MathAtom(new MathKernInset(s)));
1203 else if (t.cs() == "label") {
1204 // FIXME: This is swallowed in inline formulas
1205 string label = parse_verbatim_item();
1208 if (grid.asHullInset()) {
1209 grid.asHullInset()->label(cellrow, label);
1211 cell->push_back(createMathInset(t.cs()));
1212 cell->push_back(MathAtom(new MathBraceInset(ar)));
1216 else if (t.cs() == "choose" || t.cs() == "over" || t.cs() == "atop") {
1217 MathAtom at = createMathInset(t.cs());
1218 at.nucleus()->cell(0) = *cell;
1220 parse(at.nucleus()->cell(1), flags, mode);
1221 cell->push_back(at);
1225 else if (t.cs() == "color") {
1226 string const color = parse_verbatim_item();
1227 cell->push_back(MathAtom(new MathColorInset(true, color)));
1228 parse(cell->back().nucleus()->cell(0), flags, mode);
1232 else if (t.cs() == "textcolor") {
1233 string const color = parse_verbatim_item();
1234 cell->push_back(MathAtom(new MathColorInset(false, color)));
1235 parse(cell->back().nucleus()->cell(0), FLAG_ITEM, MathInset::TEXT_MODE);
1238 else if (t.cs() == "normalcolor") {
1239 cell->push_back(createMathInset(t.cs()));
1240 parse(cell->back().nucleus()->cell(0), flags, mode);
1244 else if (t.cs() == "substack") {
1245 cell->push_back(createMathInset(t.cs()));
1246 parse2(cell->back(), FLAG_ITEM, mode, false);
1249 else if (t.cs() == "framebox" || t.cs() == "makebox") {
1250 cell->push_back(createMathInset(t.cs()));
1251 parse(cell->back().nucleus()->cell(0), FLAG_OPTION, MathInset::TEXT_MODE);
1252 parse(cell->back().nucleus()->cell(1), FLAG_OPTION, MathInset::TEXT_MODE);
1253 parse(cell->back().nucleus()->cell(2), FLAG_ITEM, MathInset::TEXT_MODE);
1257 else if (t.cs() == "infer") {
1259 parse(ar, FLAG_OPTION, mode);
1260 cell->push_back(createMathInset(t.cs()));
1261 parse2(cell->back(), FLAG_ITEM, mode, false);
1265 else if (1 && t.cs() == "ar") {
1266 auto_ptr<MathXYArrowInset> p(new MathXYArrowInset);
1267 // try to read target
1268 parse(p->cell(0), FLAG_OTPTION, mode);
1269 // try to read label
1270 if (nextToken().cat() == catSuper || nextToken().cat() == catSub) {
1271 p->up_ = nextToken().cat() == catSuper;
1273 parse(p->cell(1), FLAG_ITEM, mode);
1274 //lyxerr << "read label: " << p->cell(1) << endl;
1277 cell->push_back(MathAtom(p.release()));
1278 //lyxerr << "read cell: " << cell << endl;
1282 else if (t.cs().size()) {
1283 latexkeys const * l = in_word_set(t.cs());
1285 if (l->inset == "font") {
1286 cell->push_back(createMathInset(t.cs()));
1287 parse(cell->back().nucleus()->cell(0),
1288 FLAG_ITEM, asMode(mode, l->extra));
1291 else if (l->inset == "oldfont") {
1292 cell->push_back(createMathInset(t.cs()));
1293 parse(cell->back().nucleus()->cell(0),
1294 flags | FLAG_ALIGN, asMode(mode, l->extra));
1295 if (prevToken().cat() != catAlign &&
1296 prevToken().cs() != "\\")
1301 else if (l->inset == "style") {
1302 cell->push_back(createMathInset(t.cs()));
1303 parse(cell->back().nucleus()->cell(0),
1304 flags | FLAG_ALIGN, mode);
1305 if (prevToken().cat() != catAlign &&
1306 prevToken().cs() != "\\")
1312 MathAtom at = createMathInset(t.cs());
1313 for (MathInset::idx_type i = 0; i < at->nargs(); ++i)
1314 parse(at.nucleus()->cell(i),
1315 FLAG_ITEM, asMode(mode, l->extra));
1316 cell->push_back(at);
1321 MathAtom at = createMathInset(t.cs());
1322 MathInset::mode_type m = mode;
1323 //if (m == MathInset::UNDECIDED_MODE)
1324 //lyxerr << "default creation: m1: " << m << endl;
1325 if (at->currentMode() != MathInset::UNDECIDED_MODE)
1326 m = at->currentMode();
1327 //lyxerr << "default creation: m2: " << m << endl;
1328 MathInset::idx_type start = 0;
1329 // this fails on \bigg[...\bigg]
1331 //parse(opt, FLAG_OPTION, MathInset::VERBATIM_MODE);
1334 // at.nucleus()->cell(0) = opt;
1336 for (MathInset::idx_type i = start; i < at->nargs(); ++i) {
1337 parse(at.nucleus()->cell(i), FLAG_ITEM, m);
1340 cell->push_back(at);
1345 if (flags & FLAG_LEAVE) {
1346 flags &= ~FLAG_LEAVE;
1354 } // anonymous namespace
1357 void mathed_parse_cell(MathArray & ar, string const & str)
1359 istringstream is(str);
1360 mathed_parse_cell(ar, is);
1364 void mathed_parse_cell(MathArray & ar, istream & is)
1366 Parser(is).parse(ar, 0, MathInset::MATH_MODE);
1370 bool mathed_parse_normal(MathAtom & t, string const & str)
1372 istringstream is(str);
1373 return Parser(is).parse(t);
1377 bool mathed_parse_normal(MathAtom & t, istream & is)
1379 return Parser(is).parse(t);
1383 bool mathed_parse_normal(MathAtom & t, LyXLex & lex)
1385 return Parser(lex).parse(t);
1389 void mathed_parse_normal(MathGridInset & grid, string const & str)
1391 istringstream is(str);
1392 Parser(is).parse1(grid, 0, MathInset::MATH_MODE, false);
1398 fill(theCatcode, theCatcode + 256, catOther);
1399 fill(theCatcode + 'a', theCatcode + 'z' + 1, catLetter);
1400 fill(theCatcode + 'A', theCatcode + 'Z' + 1, catLetter);
1402 theCatcode[int('\\')] = catEscape;
1403 theCatcode[int('{')] = catBegin;
1404 theCatcode[int('}')] = catEnd;
1405 theCatcode[int('$')] = catMath;
1406 theCatcode[int('&')] = catAlign;
1407 theCatcode[int('\n')] = catNewline;
1408 theCatcode[int('#')] = catParameter;
1409 theCatcode[int('^')] = catSuper;
1410 theCatcode[int('_')] = catSub;
1411 theCatcode[int(0x7f)] = catIgnore;
1412 theCatcode[int(' ')] = catSpace;
1413 theCatcode[int('\t')] = catSpace;
1414 theCatcode[int('\r')] = catNewline;
1415 theCatcode[int('~')] = catActive;
1416 theCatcode[int('%')] = catComment;