-/** The math parser
- \author André Pönitz (2001)
+/**
+ * \file math_parser.C
+ * This file is part of LyX, the document processor.
+ * Licence details can be found in the file COPYING.
+ *
+ * \author André Pönitz
+ *
+ * Full author contact details are available in file CREDITS.
*/
/*
...
\[\begin{array}{ccc}
- 1 & 2\b & 3^2\\
- 4 & 5\e & 6\\
- 7 & 8 & 9
+1
+&
+
\end{array}\]
*/
#include <config.h>
-#ifdef __GNUG__
-#pragma implementation
-#endif
-
#include "math_parser.h"
-#include "math_inset.h"
#include "math_arrayinset.h"
#include "math_braceinset.h"
-#include "math_boxinset.h"
#include "math_charinset.h"
+#include "math_colorinset.h"
+#include "math_commentinset.h"
#include "math_deliminset.h"
#include "math_envinset.h"
-#include "math_extern.h"
#include "math_factory.h"
#include "math_kerninset.h"
#include "math_macro.h"
+#include "math_macroarg.h"
#include "math_macrotemplate.h"
-#include "math_hullinset.h"
-#include "math_parboxinset.h"
#include "math_parinset.h"
#include "math_rootinset.h"
-#include "math_sizeinset.h"
-#include "math_sqrtinset.h"
#include "math_scriptinset.h"
#include "math_sqrtinset.h"
#include "math_support.h"
-#include "math_xyarrowinset.h"
+#include "math_tabularinset.h"
//#include "insets/insetref.h"
#include "ref_inset.h"
#include "lyxlex.h"
#include "debug.h"
-#include "support/LAssert.h"
-#include "support/lstrings.h"
-#include <cctype>
-#include <stack>
-#include <algorithm>
+#include "support/convert.h"
+
+#include <sstream>
-using std::istream;
-using std::ostream;
-using std::ios;
using std::endl;
-using std::stack;
using std::fill;
+
+using std::string;
+using std::ios;
+using std::istream;
+using std::istringstream;
+using std::ostream;
using std::vector;
-using std::atoi;
//#define FILEDEBUG
namespace {
+MathInset::mode_type asMode(MathInset::mode_type oldmode, string const & str)
+{
+ //lyxerr << "handling mode: '" << str << "'" << endl;
+ if (str == "mathmode")
+ return MathInset::MATH_MODE;
+ if (str == "textmode" || str == "forcetext")
+ return MathInset::TEXT_MODE;
+ return oldmode;
+}
+
+
bool stared(string const & s)
{
string::size_type const n = s.size();
}
+/*!
+ * Add the row \p cellrow to \p grid.
+ * \returns wether the row could be added. Adding a row can fail for
+ * environments like "equation" that have a fixed number of rows.
+ */
+bool addRow(MathGridInset & grid, MathGridInset::row_type & cellrow,
+ string const & vskip)
+{
+ ++cellrow;
+ if (cellrow == grid.nrows()) {
+ //lyxerr << "adding row " << cellrow << endl;
+ grid.addRow(cellrow - 1);
+ if (cellrow == grid.nrows()) {
+ // We can't add a row to this grid, so let's
+ // append the content of this cell to the previous
+ // one.
+ // This does not happen in well formed .lyx files,
+ // but LyX versions 1.3.x and older could create
+ // such files and tex2lyx can still do that.
+ --cellrow;
+ lyxerr << "ignoring extra row";
+ if (!vskip.empty())
+ lyxerr << " with extra space " << vskip;
+ lyxerr << '.' << endl;
+ return false;
+ }
+ }
+ grid.vcrskip(LyXLength(vskip), cellrow - 1);
+ return true;
+}
+
+
+/*!
+ * Add the column \p cellcol to \p grid.
+ * \returns wether the column could be added. Adding a column can fail for
+ * environments like "eqnarray" that have a fixed number of columns.
+ */
+bool addCol(MathGridInset & grid, MathGridInset::col_type & cellcol)
+{
+ ++cellcol;
+ if (cellcol == grid.ncols()) {
+ //lyxerr << "adding column " << cellcol << endl;
+ grid.addCol(cellcol - 1);
+ if (cellcol == grid.ncols()) {
+ // We can't add a column to this grid, so let's
+ // append the content of this cell to the previous
+ // one.
+ // This does not happen in well formed .lyx files,
+ // but LyX versions 1.3.x and older could create
+ // such files and tex2lyx can still do that.
+ --cellcol;
+ lyxerr << "ignoring extra column." << endl;
+ return false;
+ }
+ }
+ return true;
+}
+
+
+/*!
+ * Check wether the last row is empty and remove it if yes.
+ * Otherwise the following code
+ * \verbatim
+\begin{array}{|c|c|}
+\hline
+1 & 2 \\ \hline
+3 & 4 \\ \hline
+\end{array}
+ * \endverbatim
+ * will result in a grid with 3 rows (+ the dummy row that is always present),
+ * because the last '\\' opens a new row.
+ */
+void delEmptyLastRow(MathGridInset & grid)
+{
+ MathGridInset::row_type const row = grid.nrows() - 1;
+ for (MathGridInset::col_type col = 0; col < grid.ncols(); ++col) {
+ if (!grid.cell(grid.index(row, col)).empty())
+ return;
+ }
+ // Copy the row information of the empty row (which would contain the
+ // last hline in the example above) to the dummy row and delete the
+ // empty row.
+ grid.rowinfo(row + 1) = grid.rowinfo(row);
+ grid.delRow(row);
+}
+
+
// These are TeX's catcodes
enum CatCode {
catEscape, // 0 backslash
enum {
- FLAG_BRACE_LAST = 1 << 1, // last closing brace ends the parsing
+ FLAG_ALIGN = 1 << 0, // next & or \\ ends the parsing process
+ FLAG_BRACE_LAST = 1 << 1, // next closing brace ends the parsing
FLAG_RIGHT = 1 << 2, // next \\right ends the parsing process
FLAG_END = 1 << 3, // next \\end ends the parsing process
FLAG_BRACK_LAST = 1 << 4, // next closing bracket ends the parsing
FLAG_SIMPLE = 1 << 8, // next $ leaves the loop
FLAG_EQUATION = 1 << 9, // next \] leaves the loop
FLAG_SIMPLE2 = 1 << 10, // next \) leaves the loop
- FLAG_OPTION = 1 << 11 // read [...] style option
+ FLAG_OPTION = 1 << 11, // read [...] style option
+ FLAG_BRACED = 1 << 12 // read {...} style argument
};
-void catInit()
-{
- fill(theCatcode, theCatcode + 256, catOther);
- fill(theCatcode + 'a', theCatcode + 'z' + 1, catLetter);
- fill(theCatcode + 'A', theCatcode + 'Z' + 1, catLetter);
-
- theCatcode['\\'] = catEscape;
- theCatcode['{'] = catBegin;
- theCatcode['}'] = catEnd;
- theCatcode['$'] = catMath;
- theCatcode['&'] = catAlign;
- theCatcode['\n'] = catNewline;
- theCatcode['#'] = catParameter;
- theCatcode['^'] = catSuper;
- theCatcode['_'] = catSub;
- theCatcode['\7f'] = catIgnore;
- theCatcode[' '] = catSpace;
- theCatcode['\t'] = catSpace;
- theCatcode['\r'] = catSpace;
- theCatcode['~'] = catActive;
- theCatcode['%'] = catComment;
-}
-
-
-
//
// Helper class for parsing
//
///
char character() const { return char_; }
///
- string asString() const;
- ///
- bool isCR() const;
+ string asString() const { return cs_.size() ? cs_ : string(1, char_); }
private:
///
CatCode cat_;
};
-bool Token::isCR() const
-{
- return cs_ == "\\" || cs_ == "cr" || cs_ == "crcr";
-}
-
-string Token::asString() const
-{
- return cs_.size() ? cs_ : string(1, char_);
-}
-
ostream & operator<<(ostream & os, Token const & t)
{
if (t.cs().size())
- os << "\\" << t.cs();
+ os << '\\' << t.cs();
+ else if (t.cat() == catLetter)
+ os << t.character();
else
- os << "[" << t.character() << "," << t.cat() << "]";
+ os << '[' << t.character() << ',' << t.cat() << ']';
return os;
}
class Parser {
-
public:
+ ///
+ typedef MathInset::mode_type mode_type;
+
///
Parser(LyXLex & lex);
///
///
bool parse(MathAtom & at);
///
- void parse(MathArray & array, unsigned flags, bool mathmode);
+ void parse(MathArray & array, unsigned flags, mode_type mode);
+ ///
+ void parse1(MathGridInset & grid, unsigned flags, mode_type mode,
+ bool numbered);
+ ///
+ MathArray parse(unsigned flags, mode_type mode);
///
int lineno() const { return lineno_; }
///
private:
///
- void parse1(MathGridInset & grid, unsigned flags, bool mathmode, bool numbered);
- ///
- void parse2(MathAtom & at, unsigned flags, bool mathmode, bool numbered);
+ void parse2(MathAtom & at, unsigned flags, mode_type mode, bool numbered);
/// get arg delimited by 'left' and 'right'
string getArg(char left, char right);
///
void lex(string const & s);
///
bool good() const;
+ ///
+ string parse_verbatim_item();
+ ///
+ string parse_verbatim_option();
///
int lineno_;
vector<Token> tokens_;
///
unsigned pos_;
+ /// Stack of active environments
+ vector<string> environments_;
};
Token const & Parser::getToken()
{
static const Token dummy;
- //lyxerr << "looking at token " << tokens_[pos_] << " pos: " << pos_ << '\n';
+ //lyxerr << "looking at token " << tokens_[pos_] << " pos: " << pos_ << endl;
return good() ? tokens_[pos_++] : dummy;
}
void Parser::skipSpaces()
{
- while (nextToken().cat() == catSpace)
+ while (nextToken().cat() == catSpace || nextToken().cat() == catNewline)
getToken();
}
}
+void Parser::skipSpaceTokens(istream & is, char c)
+{
+ // skip trailing spaces
+ while (catcode(c) == catSpace || catcode(c) == catNewline)
+ if (!is.get(c))
+ break;
+ //lyxerr << "putting back: " << c << endl;
+ is.putback(c);
+}
+
+
void Parser::tokenize(istream & is)
{
// eat everything up to the next \end_inset or end of stream
break;
}
}
+ // Remove the space after \end_inset
+ if (is.get(c) && c != ' ')
+ is.unget();
// tokenize buffer
tokenize(s);
}
-void Parser::skipSpaceTokens(istream & is, char c)
-{
- // skip trailing spaces
- while (catcode(c) == catSpace || catcode(c) == catNewline)
- if (!is.get(c))
- break;
- //lyxerr << "putting back: " << c << "\n";
- is.putback(c);
-}
-
-
void Parser::tokenize(string const & buffer)
{
- static bool init_done = false;
-
- if (!init_done) {
- catInit();
- init_done = true;
- }
-
- istringstream is(buffer.c_str(), ios::in | ios::binary);
+ istringstream is(buffer, ios::in | ios::binary);
char c;
while (is.get(c)) {
- //lyxerr << "reading c: " << c << "\n";
+ //lyxerr << "reading c: " << c << endl;
switch (catcode(c)) {
case catNewline: {
if (catcode(c) == catNewline)
; //push_back(Token("par"));
else {
- push_back(Token(' ', catSpace));
+ push_back(Token('\n', catNewline));
is.putback(c);
}
break;
}
+/*
case catComment: {
while (is.get(c) && catcode(c) != catNewline)
;
++lineno_;
break;
}
+*/
case catEscape: {
is.get(c);
}
case catIgnore: {
- lyxerr << "ignoring a char: " << int(c) << "\n";
+ lyxerr << "ignoring a char: " << int(c) << endl;
break;
}
lyxerr << " <#> ";
lyxerr << tokens_[i];
}
- lyxerr << " pos: " << pos_ << "\n";
+ lyxerr << " pos: " << pos_ << endl;
}
{
skipSpaces();
MathArray ar;
- parse(ar, false, false);
+ parse(ar, false, MathInset::UNDECIDED_MODE);
if (ar.size() != 1 || ar.front()->getType() == "none") {
lyxerr << "unusual contents found: " << ar << endl;
- at.reset(new MathParInset);
- if (at->nargs() > 0)
- at->cell(0) = ar;
- else
- lyxerr << "unusual contents found: " << ar << endl;
+ at = MathAtom(new MathParInset(ar));
+ //if (at->nargs() > 0)
+ // at.nucleus()->cell(0) = ar;
+ //else
+ // lyxerr << "unusual contents found: " << ar << endl;
return true;
}
at = ar[0];
}
-void Parser::parse(MathArray & array, unsigned flags, bool mathmode)
+string Parser::parse_verbatim_option()
+{
+ skipSpaces();
+ string res;
+ if (nextToken().character() == '[') {
+ Token t = getToken();
+ for (Token t = getToken(); t.character() != ']' && good(); t = getToken()) {
+ if (t.cat() == catBegin) {
+ putback();
+ res += '{' + parse_verbatim_item() + '}';
+ } else
+ res += t.asString();
+ }
+ }
+ return res;
+}
+
+
+string Parser::parse_verbatim_item()
+{
+ skipSpaces();
+ string res;
+ if (nextToken().cat() == catBegin) {
+ Token t = getToken();
+ for (Token t = getToken(); t.cat() != catEnd && good(); t = getToken()) {
+ if (t.cat() == catBegin) {
+ putback();
+ res += '{' + parse_verbatim_item() + '}';
+ }
+ else
+ res += t.asString();
+ }
+ }
+ return res;
+}
+
+
+MathArray Parser::parse(unsigned flags, mode_type mode)
+{
+ MathArray ar;
+ parse(ar, flags, mode);
+ return ar;
+}
+
+
+void Parser::parse(MathArray & array, unsigned flags, mode_type mode)
{
MathGridInset grid(1, 1);
- parse1(grid, flags, mathmode, false);
+ parse1(grid, flags, mode, false);
array = grid.cell(0);
}
-void Parser::parse2(MathAtom & at, unsigned flags,
- bool mathmode, bool numbered)
+void Parser::parse2(MathAtom & at, const unsigned flags, const mode_type mode,
+ const bool numbered)
{
- parse1(*(at->asGridInset()), flags, mathmode, numbered);
+ parse1(*(at.nucleus()->asGridInset()), flags, mode, numbered);
}
void Parser::parse1(MathGridInset & grid, unsigned flags,
- bool mathmode, bool numbered)
+ const mode_type mode, const bool numbered)
{
- int limits = 0;
+ int limits = 0;
MathGridInset::row_type cellrow = 0;
MathGridInset::col_type cellcol = 0;
MathArray * cell = &grid.cell(grid.index(cellrow, cellcol));
grid.asHullInset()->numbered(cellrow, numbered);
//dump();
+ //lyxerr << " flags: " << flags << endl;
+ //lyxerr << " mode: " << mode << endl;
//lyxerr << "grid: " << grid << endl;
while (good()) {
Token const & t = getToken();
#ifdef FILEDEBUG
- lyxerr << "t: " << t << " flags: " << flags << "\n";
- //cell->dump();
- lyxerr << "\n";
+ lyxerr << "t: " << t << " flags: " << flags << endl;
+ lyxerr << "mode: " << mode << endl;
+ cell->dump();
+ lyxerr << endl;
#endif
if (flags & FLAG_ITEM) {
- if (t.cat() == catSpace)
- continue;
- flags &= ~FLAG_ITEM;
if (t.cat() == catBegin) {
// skip the brace and collect everything to the next matching
// closing brace
- flags |= FLAG_BRACE_LAST;
- continue;
+ parse1(grid, FLAG_BRACE_LAST, mode, numbered);
+ return;
}
// handle only this single token, leave the loop if done
- flags |= FLAG_LEAVE;
+ flags = FLAG_LEAVE;
}
- if (flags & FLAG_OPTION) {
- if (t.cat() == catOther && t.character() == '[') {
- // skip the bracket and collect everything to the closing bracket
- flags |= FLAG_BRACK_LAST;
+ if (flags & FLAG_BRACED) {
+ if (t.cat() == catSpace)
continue;
+
+ if (t.cat() != catBegin) {
+ error("opening brace expected");
+ return;
}
- // no option found, put back token and we are done
- putback();
+ // skip the brace and collect everything to the next matching
+ // closing brace
+ flags = FLAG_BRACE_LAST;
+ }
+
+
+ if (flags & FLAG_OPTION) {
+ if (t.cat() == catOther && t.character() == '[') {
+ MathArray ar;
+ parse(ar, FLAG_BRACK_LAST, mode);
+ cell->append(ar);
+ } else {
+ // no option found, put back token and we are done
+ putback();
+ }
return;
}
// cat codes
//
if (t.cat() == catMath) {
- if (!mathmode) {
+ if (mode != MathInset::MATH_MODE) {
// we are inside some text mode thingy, so opening new math is allowed
Token const & n = getToken();
if (n.cat() == catMath) {
// TeX's $$...$$ syntax for displayed math
cell->push_back(MathAtom(new MathHullInset("equation")));
- parse2(cell->back(), FLAG_SIMPLE, true, false);
+ parse2(cell->back(), FLAG_SIMPLE, MathInset::MATH_MODE, false);
getToken(); // skip the second '$' token
} else {
// simple $...$ stuff
putback();
cell->push_back(MathAtom(new MathHullInset("simple")));
- parse2(cell->back(), FLAG_SIMPLE, true, false);
+ parse2(cell->back(), FLAG_SIMPLE, MathInset::MATH_MODE, false);
}
}
}
else {
- error("something strange in the parser\n");
+ error("something strange in the parser");
break;
}
}
else if (t.cat() == catLetter)
cell->push_back(MathAtom(new MathCharInset(t.character())));
- else if (t.cat() == catSpace && !mathmode)
- cell->push_back(MathAtom(new MathCharInset(t.character())));
+ else if (t.cat() == catSpace && mode != MathInset::MATH_MODE) {
+ if (cell->empty() || cell->back()->getChar() != ' ')
+ cell->push_back(MathAtom(new MathCharInset(t.character())));
+ }
+
+ else if (t.cat() == catNewline && mode != MathInset::MATH_MODE) {
+ if (cell->empty() || cell->back()->getChar() != ' ')
+ cell->push_back(MathAtom(new MathCharInset(' ')));
+ }
else if (t.cat() == catParameter) {
Token const & n = getToken();
cell->push_back(MathAtom(new MathMacroArgument(n.character()-'0')));
}
+ else if (t.cat() == catActive)
+ cell->push_back(MathAtom(new MathCharInset(t.character())));
+
else if (t.cat() == catBegin) {
MathArray ar;
- parse(ar, FLAG_BRACE_LAST, mathmode);
+ parse(ar, FLAG_BRACE_LAST, mode);
// do not create a BraceInset if they were written by LyX
// this helps to keep the annoyance of "a choose b" to a minimum
if (ar.size() == 1 && ar[0]->extraBraces())
if (flags & FLAG_BRACE_LAST)
return;
error("found '}' unexpectedly");
- //lyx::Assert(0);
+ //BOOST_ASSERT(false);
//add(cell, '}', LM_TC_TEX);
}
else if (t.cat() == catAlign) {
- ++cellcol;
- //lyxerr << " column now " << cellcol << " max: " << grid.ncols() << "\n";
- if (cellcol == grid.ncols()) {
- lyxerr << "adding column " << cellcol << "\n";
- grid.addCol(cellcol - 1);
- }
- cell = &grid.cell(grid.index(cellrow, cellcol));
+ //lyxerr << " column now " << (cellcol + 1)
+ // << " max: " << grid.ncols() << endl;
+ if (flags & FLAG_ALIGN)
+ return;
+ if (addCol(grid, cellcol))
+ cell = &grid.cell(grid.index(cellrow, cellcol));
}
else if (t.cat() == catSuper || t.cat() == catSub) {
bool up = (t.cat() == catSuper);
// we need no new script inset if the last thing was a scriptinset,
// which has that script already not the same script already
- if (cell->size() && cell->back()->asScriptInset() &&
- !cell->back()->asScriptInset()->has(up))
- cell->back()->asScriptInset()->ensure(up);
+ if (!cell->size())
+ cell->push_back(MathAtom(new MathScriptInset(up)));
+ else if (cell->back()->asScriptInset() &&
+ !cell->back()->asScriptInset()->has(up))
+ cell->back().nucleus()->asScriptInset()->ensure(up);
else if (cell->back()->asScriptInset())
cell->push_back(MathAtom(new MathScriptInset(up)));
else
cell->back() = MathAtom(new MathScriptInset(cell->back(), up));
- MathScriptInset * p = cell->back()->asScriptInset();
- parse(p->cell(up), FLAG_ITEM, mathmode);
- p->limits(limits);
- limits = 0;
+ MathScriptInset * p = cell->back().nucleus()->asScriptInset();
+ // special handling of {}-bases
+ // is this always correct?
+ // It appears that this is wrong (Dekel)
+ //if (p->nuc().size() == 1 && p->nuc().back()->asNestInset() &&
+ // p->nuc().back()->extraBraces())
+ // p->nuc() = p->nuc().back()->asNestInset()->cell(0);
+ parse(p->cell(p->idxOfScript(up)), FLAG_ITEM, mode);
+ if (limits) {
+ p->limits(limits);
+ limits = 0;
+ }
}
- else if (t.character() == ']' && (flags & FLAG_BRACK_LAST))
+ else if (t.character() == ']' && (flags & FLAG_BRACK_LAST)) {
+ //lyxerr << "finished reading option" << endl;
return;
+ }
else if (t.cat() == catOther)
cell->push_back(MathAtom(new MathCharInset(t.character())));
+ else if (t.cat() == catComment) {
+ string s;
+ while (good()) {
+ Token const & t = getToken();
+ if (t.cat() == catNewline)
+ break;
+ s += t.asString();
+ }
+ cell->push_back(MathAtom(new MathCommentInset(s)));
+ skipSpaces();
+ }
+
//
// control sequences
//
- else if (t.cs() == "def" || t.cs() == "newcommand") {
+ else if (t.cs() == "lyxlock") {
+ if (cell->size())
+ cell->back().nucleus()->lock(true);
+ }
+
+ else if (t.cs() == "def" ||
+ t.cs() == "newcommand" ||
+ t.cs() == "renewcommand")
+ {
+ string const type = t.cs();
string name;
int nargs = 0;
if (t.cs() == "def") {
++nargs;
}
nargs /= 2;
- //lyxerr << "read \\def parameter list '" << pars << "'\n";
+ //lyxerr << "read \\def parameter list '" << pars << "'" << endl;
- } else { // t.cs() == "newcommand"
+ } else { // t.cs() == "newcommand" || t.cs() == "renewcommand"
if (getToken().cat() != catBegin) {
- error("'{' in \\newcommand expected (1) \n");
+ error("'{' in \\newcommand expected (1) ");
return;
}
name = getToken().cs();
if (getToken().cat() != catEnd) {
- error("'}' in \\newcommand expected\n");
+ error("'}' in \\newcommand expected");
return;
}
- string arg = getArg('[', ']');
+ string const arg = getArg('[', ']');
if (!arg.empty())
- nargs = atoi(arg.c_str());
+ nargs = convert<int>(arg);
}
MathArray ar1;
- parse(ar1, FLAG_ITEM, true);
+ parse(ar1, FLAG_ITEM, MathInset::UNDECIDED_MODE);
// we cannot handle recursive stuff at all
//MathArray test;
//test.push_back(createMathInset(name));
//if (ar1.contains(test)) {
- // error("we cannot handle recursive macros at all.\n");
+ // error("we cannot handle recursive macros at all.");
// return;
//}
// is a version for display attached?
skipSpaces();
MathArray ar2;
- if (nextToken().cat() == catBegin) {
- parse(ar2, FLAG_ITEM, true);
- }
+ if (nextToken().cat() == catBegin)
+ parse(ar2, FLAG_ITEM, MathInset::MATH_MODE);
- cell->push_back(MathAtom(new MathMacroTemplate(name, nargs, ar1, ar2)));
+ cell->push_back(MathAtom(new MathMacroTemplate(name, nargs, type,
+ ar1, ar2)));
}
else if (t.cs() == "(") {
cell->push_back(MathAtom(new MathHullInset("simple")));
- parse2(cell->back(), FLAG_SIMPLE2, true, false);
+ parse2(cell->back(), FLAG_SIMPLE2, MathInset::MATH_MODE, false);
}
else if (t.cs() == "[") {
cell->push_back(MathAtom(new MathHullInset("equation")));
- parse2(cell->back(), FLAG_EQUATION, true, false);
+ parse2(cell->back(), FLAG_EQUATION, MathInset::MATH_MODE, false);
}
else if (t.cs() == "protect")
else if (t.cs() == "end") {
if (flags & FLAG_END) {
// eat environment name
- //string const name =
- getArg('{', '}');
- // FIXME: check that we ended the correct environment
- return;
- }
- error("found 'end' unexpectedly");
+ string const name = getArg('{', '}');
+ if (environments_.empty())
+ error("'found \\end{" + name +
+ "}' without matching '\\begin{" +
+ name + "}'");
+ else if (name != environments_.back())
+ error("'\\end{" + name +
+ "}' does not match '\\begin{" +
+ environments_.back() + "}'");
+ else {
+ environments_.pop_back();
+ // Delete empty last row in matrix
+ // like insets.
+ // If you abuse MathGridInset for
+ // non-matrix like structures you
+ // probably need to refine this test.
+ // Right now we only have to test for
+ // single line hull insets.
+ if (grid.nrows() > 1)
+ delEmptyLastRow(grid);
+ return;
+ }
+ } else
+ error("found 'end' unexpectedly");
}
else if (t.cs() == ")") {
}
else if (t.cs() == "\\") {
- grid.vcrskip(LyXLength(getArg('[', ']')), cellrow);
- ++cellrow;
- cellcol = 0;
- if (cellrow == grid.nrows())
- grid.addRow(cellrow - 1);
- if (grid.asHullInset())
- grid.asHullInset()->numbered(cellrow, numbered);
- cell = &grid.cell(grid.index(cellrow, cellcol));
+ if (flags & FLAG_ALIGN)
+ return;
+ if (addRow(grid, cellrow, getArg('[', ']'))) {
+ cellcol = 0;
+ if (grid.asHullInset())
+ grid.asHullInset()->numbered(
+ cellrow, numbered);
+ cell = &grid.cell(grid.index(cellrow,
+ cellcol));
+ }
}
-#if 1
+#if 0
else if (t.cs() == "multicolumn") {
// extract column count and insert dummy cells
MathArray count;
- parse(count, FLAG_ITEM, mathmode);
+ parse(count, FLAG_ITEM, mode);
int cols = 1;
if (!extractNumber(count, cols)) {
- lyxerr << " can't extract number of cells from " << count << "\n";
+ lyxerr << " can't extract number of cells from " << count << endl;
}
// resize the table if necessary
for (int i = 0; i < cols; ++i) {
- ++cellcol;
- if (cellcol == grid.ncols()) {
- lyxerr << "adding column " << cellcol << "\n";
- grid.addCol(cellcol - 1);
+ if (addCol(grid, cellcol)) {
+ cell = &grid.cell(grid.index(
+ cellrow, cellcol));
+ // mark this as dummy
+ grid.cellinfo(grid.index(
+ cellrow, cellcol)).dummy_ = true;
}
- cell = &grid.cell(grid.index(cellrow, cellcol));
- // mark this as dummy
- grid.cellinfo(grid.index(cellrow, cellcol)).dummy_ = true;
}
- // the last cell is the real thng, not a dummy
+ // the last cell is the real thing, not a dummy
grid.cellinfo(grid.index(cellrow, cellcol)).dummy_ = false;
// read special alignment
MathArray align;
- parse(align, FLAG_ITEM, mathmode);
+ parse(align, FLAG_ITEM, mode);
//grid.cellinfo(grid.index(cellrow, cellcol)).align_ = extractString(align);
// parse the remaining contents into the "real" cell
- parse(*cell, FLAG_ITEM, mathmode);
+ parse(*cell, FLAG_ITEM, mode);
}
#endif
}
else if (t.cs() == "hline") {
- if (grid.asHullInset())
- grid.asHullInset()->rowinfo(cellrow + 1);
+ grid.rowinfo(cellrow).lines_ ++;
}
else if (t.cs() == "sqrt") {
MathArray ar;
- parse(ar, FLAG_OPTION, mathmode);
+ parse(ar, FLAG_OPTION, mode);
if (ar.size()) {
cell->push_back(MathAtom(new MathRootInset));
- cell->back()->cell(0) = ar;
- parse(cell->back()->cell(1), FLAG_ITEM, mathmode);
+ cell->back().nucleus()->cell(0) = ar;
+ parse(cell->back().nucleus()->cell(1), FLAG_ITEM, mode);
} else {
cell->push_back(MathAtom(new MathSqrtInset));
- parse(cell->back()->cell(0), FLAG_ITEM, mathmode);
+ parse(cell->back().nucleus()->cell(0), FLAG_ITEM, mode);
}
}
- else if (t.cs() == "ref") {
- cell->push_back(MathAtom(new RefInset));
- parse(cell->back()->cell(1), FLAG_OPTION, mathmode);
- parse(cell->back()->cell(0), FLAG_ITEM, mathmode);
+ else if (t.cs() == "xrightarrow" || t.cs() == "xleftarrow") {
+ cell->push_back(createMathInset(t.cs()));
+ parse(cell->back().nucleus()->cell(1), FLAG_OPTION, mode);
+ parse(cell->back().nucleus()->cell(0), FLAG_ITEM, mode);
+ }
+
+ else if (t.cs() == "ref" || t.cs() == "prettyref" ||
+ t.cs() == "pageref" || t.cs() == "vpageref" || t.cs() == "vref") {
+ cell->push_back(MathAtom(new RefInset(t.cs())));
+ parse(cell->back().nucleus()->cell(1), FLAG_OPTION, mode);
+ parse(cell->back().nucleus()->cell(0), FLAG_ITEM, mode);
}
else if (t.cs() == "left") {
- string l = getToken().asString();
+ skipSpaces();
+ Token const & tl = getToken();
+ // \| and \Vert are equivalent, and MathDelimInset
+ // can't handle \|
+ // FIXME: fix this in MathDelimInset itself!
+ string const l = tl.cs() == "|" ? "Vert" : tl.asString();
MathArray ar;
- parse(ar, FLAG_RIGHT, mathmode);
- string r = getToken().asString();
+ parse(ar, FLAG_RIGHT, mode);
+ skipSpaces();
+ Token const & tr = getToken();
+ string const r = tr.cs() == "|" ? "Vert" : tr.asString();
cell->push_back(MathAtom(new MathDelimInset(l, r, ar)));
}
else if (t.cs() == "right") {
if (flags & FLAG_RIGHT)
return;
- //lyxerr << "got so far: '" << cell << "'\n";
+ //lyxerr << "got so far: '" << cell << "'" << endl;
error("Unmatched right delimiter");
return;
}
else if (t.cs() == "begin") {
string const name = getArg('{', '}');
+ environments_.push_back(name);
+
if (name == "array" || name == "subarray") {
- string const valign = getArg('[', ']') + 'c';
- string const halign = getArg('{', '}');
+ string const valign = parse_verbatim_option() + 'c';
+ string const halign = parse_verbatim_item();
cell->push_back(MathAtom(new MathArrayInset(name, valign[0], halign)));
- parse2(cell->back(), FLAG_END, mathmode, false);
+ parse2(cell->back(), FLAG_END, mode, false);
+ }
+
+ else if (name == "tabular") {
+ string const valign = parse_verbatim_option() + 'c';
+ string const halign = parse_verbatim_item();
+ cell->push_back(MathAtom(new MathTabularInset(name, valign[0], halign)));
+ parse2(cell->back(), FLAG_END, MathInset::TEXT_MODE, false);
}
else if (name == "split" || name == "cases" ||
- name == "gathered" || name == "aligned") {
+ name == "gathered" || name == "aligned") {
cell->push_back(createMathInset(name));
- parse2(cell->back(), FLAG_END, mathmode, false);
+ parse2(cell->back(), FLAG_END, mode, false);
+ }
+
+ else if (name == "alignedat") {
+ // ignore this for a while
+ getArg('{', '}');
+ cell->push_back(createMathInset(name));
+ parse2(cell->back(), FLAG_END, mode, false);
}
else if (name == "math") {
cell->push_back(MathAtom(new MathHullInset("simple")));
- parse2(cell->back(), FLAG_END, true, true);
+ parse2(cell->back(), FLAG_END, MathInset::MATH_MODE, true);
}
else if (name == "equation" || name == "equation*"
|| name == "displaymath") {
cell->push_back(MathAtom(new MathHullInset("equation")));
- parse2(cell->back(), FLAG_END, true, (name == "equation"));
+ parse2(cell->back(), FLAG_END, MathInset::MATH_MODE, (name == "equation"));
}
else if (name == "eqnarray" || name == "eqnarray*") {
cell->push_back(MathAtom(new MathHullInset("eqnarray")));
- parse2(cell->back(), FLAG_END, true, !stared(name));
+ parse2(cell->back(), FLAG_END, MathInset::MATH_MODE, !stared(name));
}
else if (name == "align" || name == "align*") {
cell->push_back(MathAtom(new MathHullInset("align")));
- parse2(cell->back(), FLAG_END, true, !stared(name));
+ parse2(cell->back(), FLAG_END, MathInset::MATH_MODE, !stared(name));
+ }
+
+ else if (name == "flalign" || name == "flalign*") {
+ cell->push_back(MathAtom(new MathHullInset("flalign")));
+ parse2(cell->back(), FLAG_END, MathInset::MATH_MODE, !stared(name));
}
else if (name == "alignat" || name == "alignat*") {
// ignore this for a while
getArg('{', '}');
cell->push_back(MathAtom(new MathHullInset("alignat")));
- parse2(cell->back(), FLAG_END, true, !stared(name));
+ parse2(cell->back(), FLAG_END, MathInset::MATH_MODE, !stared(name));
}
else if (name == "xalignat" || name == "xalignat*") {
// ignore this for a while
getArg('{', '}');
cell->push_back(MathAtom(new MathHullInset("xalignat")));
- parse2(cell->back(), FLAG_END, true, !stared(name));
+ parse2(cell->back(), FLAG_END, MathInset::MATH_MODE, !stared(name));
}
else if (name == "xxalignat") {
// ignore this for a while
getArg('{', '}');
cell->push_back(MathAtom(new MathHullInset("xxalignat")));
- parse2(cell->back(), FLAG_END, true, !stared(name));
+ parse2(cell->back(), FLAG_END, MathInset::MATH_MODE, !stared(name));
}
else if (name == "multline" || name == "multline*") {
cell->push_back(MathAtom(new MathHullInset("multline")));
- parse2(cell->back(), FLAG_END, true, !stared(name));
+ parse2(cell->back(), FLAG_END, MathInset::MATH_MODE, !stared(name));
}
else if (name == "gather" || name == "gather*") {
cell->push_back(MathAtom(new MathHullInset("gather")));
- parse2(cell->back(), FLAG_END, true, !stared(name));
+ parse2(cell->back(), FLAG_END, MathInset::MATH_MODE, !stared(name));
}
else if (latexkeys const * l = in_word_set(name)) {
if (l->inset == "matrix") {
cell->push_back(createMathInset(name));
- parse2(cell->back(), FLAG_END, mathmode, false);
+ parse2(cell->back(), FLAG_END, mode, false);
}
}
else {
- // lyxerr << "unknow math inset begin '" << name << "'\n";
+ dump();
+ lyxerr << "found unknown math environment '" << name << "'" << endl;
// create generic environment inset
cell->push_back(MathAtom(new MathEnvInset(name)));
- parse(cell->back()->cell(0), FLAG_END, mathmode);
+ parse(cell->back().nucleus()->cell(0), FLAG_ITEM, mode);
}
}
#warning A hack...
#endif
string s;
- while (1) {
+ while (true) {
Token const & t = getToken();
if (!good()) {
putback();
}
else if (t.cs() == "label") {
+ // FIXME: This is swallowed in inline formulas
+ string label = parse_verbatim_item();
MathArray ar;
- parse(ar, FLAG_ITEM, false);
+ asArray(label, ar);
if (grid.asHullInset()) {
- grid.asHullInset()->label(cellrow, asString(ar));
+ grid.asHullInset()->label(cellrow, label);
} else {
cell->push_back(createMathInset(t.cs()));
cell->push_back(MathAtom(new MathBraceInset(ar)));
}
else if (t.cs() == "choose" || t.cs() == "over" || t.cs() == "atop") {
- MathAtom p = createMathInset(t.cs());
- p->cell(0) = *cell;
+ MathAtom at = createMathInset(t.cs());
+ at.nucleus()->cell(0) = *cell;
cell->clear();
- parse(p->cell(1), flags, mathmode);
- cell->push_back(p);
+ parse(at.nucleus()->cell(1), flags, mode);
+ cell->push_back(at);
+ return;
+ }
+
+ else if (t.cs() == "color") {
+ string const color = parse_verbatim_item();
+ cell->push_back(MathAtom(new MathColorInset(true, color)));
+ parse(cell->back().nucleus()->cell(0), flags, mode);
+ return;
+ }
+
+ else if (t.cs() == "textcolor") {
+ string const color = parse_verbatim_item();
+ cell->push_back(MathAtom(new MathColorInset(false, color)));
+ parse(cell->back().nucleus()->cell(0), FLAG_ITEM, MathInset::TEXT_MODE);
+ }
+
+ else if (t.cs() == "normalcolor") {
+ cell->push_back(createMathInset(t.cs()));
+ parse(cell->back().nucleus()->cell(0), flags, mode);
return;
}
else if (t.cs() == "substack") {
cell->push_back(createMathInset(t.cs()));
- parse2(cell->back(), FLAG_ITEM, mathmode, false);
+ parse2(cell->back(), FLAG_ITEM, mode, false);
}
else if (t.cs() == "xymatrix") {
cell->push_back(createMathInset(t.cs()));
- parse2(cell->back(), FLAG_ITEM, mathmode, false);
+ parse2(cell->back(), FLAG_ITEM, mode, false);
+ }
+
+ else if (t.cs() == "framebox" || t.cs() == "makebox") {
+ cell->push_back(createMathInset(t.cs()));
+ parse(cell->back().nucleus()->cell(0), FLAG_OPTION, MathInset::TEXT_MODE);
+ parse(cell->back().nucleus()->cell(1), FLAG_OPTION, MathInset::TEXT_MODE);
+ parse(cell->back().nucleus()->cell(2), FLAG_ITEM, MathInset::TEXT_MODE);
}
#if 0
+ else if (t.cs() == "infer") {
+ MathArray ar;
+ parse(ar, FLAG_OPTION, mode);
+ cell->push_back(createMathInset(t.cs()));
+ parse2(cell->back(), FLAG_ITEM, mode, false);
+ }
+
// Disabled
else if (1 && t.cs() == "ar") {
- MathXYArrowInset * p = new MathXYArrowInset;
+ auto_ptr<MathXYArrowInset> p(new MathXYArrowInset);
// try to read target
- parse(p->cell(0), FLAG_OTPTION, mathmode);
+ parse(p->cell(0), FLAG_OTPTION, mode);
// try to read label
if (nextToken().cat() == catSuper || nextToken().cat() == catSub) {
p->up_ = nextToken().cat() == catSuper;
getToken();
- parse(p->cell(1), FLAG_ITEM, mathmode);
- //lyxerr << "read label: " << p->cell(1) << "\n";
+ parse(p->cell(1), FLAG_ITEM, mode);
+ //lyxerr << "read label: " << p->cell(1) << endl;
}
- cell->push_back(MathAtom(p));
- //lyxerr << "read cell: " << cell << "\n";
+ cell->push_back(MathAtom(p.release()));
+ //lyxerr << "read cell: " << cell << endl;
}
#endif
if (l) {
if (l->inset == "font") {
cell->push_back(createMathInset(t.cs()));
- parse(cell->back()->cell(0), FLAG_ITEM, l->extra == "mathmode");
+ parse(cell->back().nucleus()->cell(0),
+ FLAG_ITEM, asMode(mode, l->extra));
}
else if (l->inset == "oldfont") {
cell->push_back(createMathInset(t.cs()));
- parse(cell->back()->cell(0), flags, l->extra == "mathmode");
- return;
+ parse(cell->back().nucleus()->cell(0),
+ flags | FLAG_ALIGN, asMode(mode, l->extra));
+ if (prevToken().cat() != catAlign &&
+ prevToken().cs() != "\\")
+ return;
+ putback();
}
else if (l->inset == "style") {
cell->push_back(createMathInset(t.cs()));
- parse(cell->back()->cell(0), flags, mathmode);
- return;
- }
-
- else if (l->inset == "parbox") {
- // read optional positioning and width
- MathArray pos, width;
- parse(pos, FLAG_OPTION, false);
- parse(width, FLAG_ITEM, false);
- cell->push_back(createMathInset(t.cs()));
- parse(cell->back()->cell(0), FLAG_ITEM, false);
- cell->back()->asParboxInset()->setPosition(asString(pos));
- cell->back()->asParboxInset()->setWidth(asString(width));
+ parse(cell->back().nucleus()->cell(0),
+ flags | FLAG_ALIGN, mode);
+ if (prevToken().cat() != catAlign &&
+ prevToken().cs() != "\\")
+ return;
+ putback();
}
else {
- MathAtom p = createMathInset(t.cs());
- for (MathInset::idx_type i = 0; i < p->nargs(); ++i)
- parse(p->cell(i), FLAG_ITEM, l->extra != "forcetext");
- cell->push_back(p);
+ MathAtom at = createMathInset(t.cs());
+ for (MathInset::idx_type i = 0; i < at->nargs(); ++i)
+ parse(at.nucleus()->cell(i),
+ FLAG_ITEM, asMode(mode, l->extra));
+ cell->push_back(at);
}
}
else {
- MathAtom p = createMathInset(t.cs());
- for (MathInset::idx_type i = 0; i < p->nargs(); ++i)
- parse(p->cell(i), FLAG_ITEM, mathmode);
- cell->push_back(p);
+ MathAtom at = createMathInset(t.cs());
+ MathInset::mode_type m = mode;
+ //if (m == MathInset::UNDECIDED_MODE)
+ //lyxerr << "default creation: m1: " << m << endl;
+ if (at->currentMode() != MathInset::UNDECIDED_MODE)
+ m = at->currentMode();
+ //lyxerr << "default creation: m2: " << m << endl;
+ MathInset::idx_type start = 0;
+ // this fails on \bigg[...\bigg]
+ //MathArray opt;
+ //parse(opt, FLAG_OPTION, MathInset::VERBATIM_MODE);
+ //if (opt.size()) {
+ // start = 1;
+ // at.nucleus()->cell(0) = opt;
+ //}
+ for (MathInset::idx_type i = start; i < at->nargs(); ++i) {
+ parse(at.nucleus()->cell(i), FLAG_ITEM, m);
+ skipSpaces();
+ }
+ cell->push_back(at);
}
}
void mathed_parse_cell(MathArray & ar, string const & str)
{
- istringstream is(str.c_str());
+ istringstream is(str);
mathed_parse_cell(ar, is);
}
void mathed_parse_cell(MathArray & ar, istream & is)
{
- Parser(is).parse(ar, 0, true);
+ Parser(is).parse(ar, 0, MathInset::MATH_MODE);
}
bool mathed_parse_normal(MathAtom & t, string const & str)
{
- istringstream is(str.c_str());
+ istringstream is(str);
return Parser(is).parse(t);
}
{
return Parser(lex).parse(t);
}
+
+
+void mathed_parse_normal(MathGridInset & grid, string const & str)
+{
+ istringstream is(str);
+ Parser(is).parse1(grid, 0, MathInset::MATH_MODE, false);
+}
+
+
+void initParser()
+{
+ fill(theCatcode, theCatcode + 256, catOther);
+ fill(theCatcode + 'a', theCatcode + 'z' + 1, catLetter);
+ fill(theCatcode + 'A', theCatcode + 'Z' + 1, catLetter);
+
+ theCatcode[int('\\')] = catEscape;
+ theCatcode[int('{')] = catBegin;
+ theCatcode[int('}')] = catEnd;
+ theCatcode[int('$')] = catMath;
+ theCatcode[int('&')] = catAlign;
+ theCatcode[int('\n')] = catNewline;
+ theCatcode[int('#')] = catParameter;
+ theCatcode[int('^')] = catSuper;
+ theCatcode[int('_')] = catSub;
+ theCatcode[int(0x7f)] = catIgnore;
+ theCatcode[int(' ')] = catSpace;
+ theCatcode[int('\t')] = catSpace;
+ theCatcode[int('\r')] = catNewline;
+ theCatcode[int('~')] = catActive;
+ theCatcode[int('%')] = catComment;
+}
projects / lyx.git / blobdiff