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git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@2686 a592a061-630c-0410-9148-cb99ea01b6c8
1002 lines
20 KiB
C
1002 lines
20 KiB
C
/*
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* File: math_parser.C
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* Purpose: Parser for mathed
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* Author: Alejandro Aguilar Sierra <asierra@servidor.unam.mx>
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* Created: January 1996
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* Description: Parse LaTeX2e math mode code.
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*
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* Dependencies: Xlib, XForms
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*
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* Copyright: 1996, Alejandro Aguilar Sierra
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*
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* Version: 0.8beta.
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*
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* You are free to use and modify this code under the terms of
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* the GNU General Public Licence version 2 or later.
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*/
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#include <config.h>
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#include <cctype>
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#ifdef __GNUG__
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#pragma implementation
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#endif
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#include "math_parser.h"
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#include "array.h"
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#include "math_inset.h"
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#include "math_arrayinset.h"
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#include "math_charinset.h"
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#include "math_deliminset.h"
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#include "math_factory.h"
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#include "math_funcinset.h"
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#include "math_kerninset.h"
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#include "math_macro.h"
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#include "math_macrotable.h"
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#include "math_macrotemplate.h"
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#include "math_matrixinset.h"
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#include "math_rootinset.h"
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#include "math_sqrtinset.h"
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#include "math_scriptinset.h"
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#include "math_specialcharinset.h"
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#include "math_sqrtinset.h"
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#include "debug.h"
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#include "support.h"
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#include "lyxlex.h"
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#include "support/lstrings.h"
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using std::istream;
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using std::ostream;
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using std::ios;
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using std::endl;
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namespace {
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bool stared(string const & s)
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{
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unsigned n = s.size();
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return n && s[n - 1] == '*';
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}
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MathScriptInset * prevScriptInset(MathArray const & array)
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{
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MathInset * p = array.back();
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return (p && p->isScriptInset()) ? static_cast<MathScriptInset *>(p) : 0;
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}
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MathInset * lastScriptInset(MathArray & array, bool up, int limits)
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{
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MathScriptInset * p = prevScriptInset(array);
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if (!p) {
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MathInset * b = array.back();
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if (b && b->isScriptable()) {
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p = new MathScriptInset(up, !up, b->clone());
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array.pop_back();
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} else {
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p = new MathScriptInset(up, !up);
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}
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array.push_back(p);
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}
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if (up)
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p->up(true);
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else
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p->down(true);
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if (limits)
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p->limits(limits);
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return p;
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}
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// These are TeX's catcodes
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enum CatCode {
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catEscape, // 0 backslash
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catBegin, // 1 {
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catEnd, // 2 }
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catMath, // 3 $
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catAlign, // 4 &
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catNewline, // 5 ^^M
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catParameter, // 6 #
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catSuper, // 7 ^
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catSub, // 8 _
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catIgnore, // 9
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catSpace, // 10 space
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catLetter, // 11 a-zA-Z
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catOther, // 12 none of the above
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catActive, // 13 ~
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catComment, // 14 %
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catInvalid // 15 <delete>
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};
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CatCode theCatcode[256];
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inline CatCode catcode(unsigned char c)
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{
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return theCatcode[c];
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}
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enum {
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FLAG_BRACE = 1 << 0, // an opening brace needed
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FLAG_BRACE_LAST = 1 << 1, // last closing brace ends the parsing process
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FLAG_RIGHT = 1 << 2, // next \\right ends the parsing process
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FLAG_END = 1 << 3, // next \\end ends the parsing process
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FLAG_BRACK_END = 1 << 4, // next closing bracket ends the parsing process
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FLAG_NEWLINE = 1 << 6, // next \\\\ ends the parsing process
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FLAG_ITEM = 1 << 7, // read a (possibly braced token)
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FLAG_BLOCK = 1 << 8, // next block ends the parsing process
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FLAG_LEAVE = 1 << 9 // leave the loop at the end
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};
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void catInit()
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{
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for (int i = 0; i <= 255; ++i)
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theCatcode[i] = catOther;
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for (int i = 'a'; i <= 'z'; ++i)
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theCatcode[i] = catLetter;
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for (int i = 'A'; i <= 'Z'; ++i)
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theCatcode[i] = catLetter;
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theCatcode['\\'] = catEscape;
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theCatcode['{'] = catBegin;
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theCatcode['}'] = catEnd;
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theCatcode['$'] = catMath;
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theCatcode['&'] = catAlign;
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theCatcode['\n'] = catNewline;
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theCatcode['#'] = catParameter;
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theCatcode['^'] = catSuper;
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theCatcode['_'] = catSub;
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theCatcode[''] = catIgnore;
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theCatcode[' '] = catSpace;
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theCatcode['\t'] = catSpace;
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theCatcode['\r'] = catSpace;
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theCatcode['~'] = catActive;
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theCatcode['%'] = catComment;
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}
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//
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// Helper class for parsing
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//
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class Token {
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public:
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///
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Token() : cs_(), char_(0), cat_(catIgnore) {}
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///
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Token(char c, CatCode cat) : cs_(), char_(c), cat_(cat) {}
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///
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Token(const string & cs) : cs_(cs), char_(0), cat_(catIgnore) {}
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///
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string const & cs() const { return cs_; }
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///
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CatCode cat() const { return cat_; }
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///
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char character() const { return char_; }
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///
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string asString() const;
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private:
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///
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string cs_;
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///
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char char_;
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///
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CatCode cat_;
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};
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string Token::asString() const
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{
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return cs_.size() ? cs_ : string(1, char_);
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}
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bool operator==(Token const & s, Token const & t)
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{
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return s.character() == t.character()
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&& s.cat() == t.cat() && s.cs() == t.cs();
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}
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bool operator!=(Token const & s, Token const & t)
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{
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return !(s == t);
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}
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ostream & operator<<(ostream & os, Token const & t)
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{
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if (t.cs().size())
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os << "\\" << t.cs();
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else
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os << "[" << t.character() << "," << t.cat() << "]";
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return os;
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}
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class Parser {
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public:
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///
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Parser(LyXLex & lex);
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///
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Parser(istream & is);
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///
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MathMacroTemplate * parse_macro();
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///
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MathMatrixInset * parse_normal();
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///
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void parse_into(MathArray & array, unsigned flags, MathTextCodes = LM_TC_MIN);
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///
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int lineno() const { return lineno_; }
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///
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void putback();
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private:
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///
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string getArg(char lf, char rf);
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///
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char getChar();
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///
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void error(string const & msg);
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///
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void parse_lines(MathGridInset * p, bool numbered, bool outmost);
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///
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latexkeys const * read_delim();
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private:
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///
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void tokenize(istream & is);
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///
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void tokenize(string const & s);
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///
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void push_back(Token const & t);
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///
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void pop_back();
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///
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Token const & prevToken() const;
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///
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Token const & nextToken() const;
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///
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Token const & getToken();
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///
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void lex(string const & s);
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///
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bool good() const;
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///
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int lineno_;
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///
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std::vector<Token> tokens_;
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///
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unsigned pos_;
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///
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bool curr_num_;
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///
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string curr_label_;
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///
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string curr_skip_;
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};
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Parser::Parser(LyXLex & lexer)
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: lineno_(lexer.getLineNo()), pos_(0), curr_num_(false)
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{
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tokenize(lexer.getStream());
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lexer.eatLine();
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}
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Parser::Parser(istream & is)
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: lineno_(0), pos_(0), curr_num_(false)
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{
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tokenize(is);
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}
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void Parser::push_back(Token const & t)
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{
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tokens_.push_back(t);
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}
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void Parser::pop_back()
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{
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tokens_.pop_back();
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}
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Token const & Parser::prevToken() const
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{
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static const Token dummy;
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return pos_ > 0 ? tokens_[pos_ - 1] : dummy;
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}
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Token const & Parser::nextToken() const
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{
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static const Token dummy;
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return good() ? tokens_[pos_] : dummy;
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}
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Token const & Parser::getToken()
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{
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static const Token dummy;
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return good() ? tokens_[pos_++] : dummy;
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}
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void Parser::putback()
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{
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--pos_;
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}
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bool Parser::good() const
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{
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return pos_ < tokens_.size();
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}
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char Parser::getChar()
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{
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if (!good())
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lyxerr << "The input stream is not well..." << endl;
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return tokens_[pos_++].character();
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}
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string Parser::getArg(char lf, char rg)
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{
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string result;
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char c = getChar();
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if (c != lf)
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putback();
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else
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while ((c = getChar()) != rg && good())
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result += c;
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return result;
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}
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void Parser::tokenize(istream & is)
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{
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// eat everything up to the next \end_inset or end of stream
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// and store it in s for further tokenization
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string s;
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char c;
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while (is.get(c)) {
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s += c;
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if (s.size() >= 10 && s.substr(s.size() - 10) == "\\end_inset") {
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s = s.substr(0, s.size() - 10);
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break;
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}
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}
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// tokenize buffer
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tokenize(s);
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}
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void Parser::tokenize(string const & buffer)
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{
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static bool init_done = false;
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if (!init_done) {
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catInit();
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init_done = true;
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}
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istringstream is(buffer, ios::in | ios::binary);
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char c;
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while (is.get(c)) {
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switch (catcode(c)) {
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case catNewline: {
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++lineno_;
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is.get(c);
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if (catcode(c) == catNewline)
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; //push_back(Token("par"));
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else {
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push_back(Token(' ', catSpace));
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is.putback(c);
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}
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break;
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}
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case catComment: {
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while (is.get(c) && catcode(c) != catNewline)
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;
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++lineno_;
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break;
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}
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case catEscape: {
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is.get(c);
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string s(1, c);
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if (catcode(c) == catLetter) {
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while (is.get(c) && catcode(c) == catLetter)
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s += c;
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if (catcode(c) == catSpace)
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while (is.get(c) && catcode(c) == catSpace)
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;
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is.putback(c);
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}
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push_back(Token(s));
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break;
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}
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default:
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push_back(Token(c, catcode(c)));
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}
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}
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#if 0
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lyxerr << "\nTokens: ";
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for (unsigned i = 0; i < tokens_.size(); ++i)
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lyxerr << tokens_[i];
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lyxerr << "\n";
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#endif
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}
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void Parser::error(string const & msg)
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{
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lyxerr << "Line ~" << lineno_ << ": Math parse error: " << msg << endl;
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}
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void Parser::parse_lines(MathGridInset * p, bool numbered, bool outmost)
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{
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const int cols = p->ncols();
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// save global variables
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bool const saved_num = curr_num_;
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string const saved_label = curr_label_;
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for (int row = 0; true; ++row) {
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// reset global variables
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curr_num_ = numbered;
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curr_label_.erase();
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// reading a row
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for (int col = 0; col < cols; ++col) {
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//lyxerr << "reading cell " << row << " " << col << "\n";
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parse_into(p->cell(col + row * cols), FLAG_BLOCK);
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// no ampersand
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if (prevToken().cat() != catAlign) {
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//lyxerr << "less cells read than normal in row/col: "
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// << row << " " << col << "\n";
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break;
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}
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}
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if (outmost) {
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MathMatrixInset * m = static_cast<MathMatrixInset *>(p);
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m->numbered(row, curr_num_);
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m->label(row, curr_label_);
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if (curr_skip_.size()) {
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m->vskip(LyXLength(curr_skip_), row);
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curr_skip_.erase();
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}
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}
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// no newline?
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if (prevToken() != Token("\\")) {
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//lyxerr << "no newline here\n";
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break;
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}
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p->appendRow();
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}
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// restore "global" variables
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curr_num_ = saved_num;
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curr_label_ = saved_label;
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}
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MathMacroTemplate * Parser::parse_macro()
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{
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while (nextToken().cat() == catSpace)
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getToken();
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if (getToken().cs() != "newcommand") {
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lyxerr << "\\newcommand expected\n";
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return 0;
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}
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if (getToken().cat() != catBegin) {
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lyxerr << "'{' expected\n";
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return 0;
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}
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string name = getToken().cs();
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if (getToken().cat() != catEnd) {
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lyxerr << "'}' expected\n";
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return 0;
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}
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string arg = getArg('[', ']');
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int narg = arg.empty() ? 0 : atoi(arg.c_str());
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//lyxerr << "creating macro " << name << " with " << narg << "args\n";
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MathMacroTemplate * p = new MathMacroTemplate(name, narg);
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parse_into(p->cell(0), FLAG_BRACE | FLAG_BRACE_LAST);
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return p;
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}
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MathMatrixInset * Parser::parse_normal()
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{
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while (nextToken().cat() == catSpace)
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getToken();
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Token const & t = getToken();
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if (t.cat() == catMath || t.cs() == "(") {
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MathMatrixInset * p = new MathMatrixInset(LM_OT_SIMPLE);
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parse_into(p->cell(0), 0);
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return p;
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}
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if (!t.cs().size()) {
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lyxerr << "start of math expected, got '" << t << "'\n";
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return 0;
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}
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string const & cs = t.cs();
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if (cs == "[") {
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curr_num_ = 0;
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curr_label_.erase();
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MathMatrixInset * p = new MathMatrixInset(LM_OT_EQUATION);
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parse_into(p->cell(0), 0);
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p->numbered(0, curr_num_);
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p->label(0, curr_label_);
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return p;
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}
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if (cs != "begin") {
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lyxerr << "'begin' of un-simple math expected, got '" << cs << "'\n";
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return 0;
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}
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string const name = getArg('{', '}');
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if (name == "equation" || name == "equation*") {
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curr_num_ = !stared(name);
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curr_label_.erase();
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MathMatrixInset * p = new MathMatrixInset(LM_OT_EQUATION);
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parse_into(p->cell(0), FLAG_END);
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p->numbered(0, curr_num_);
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p->label(0, curr_label_);
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return p;
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}
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if (name == "eqnarray" || name == "eqnarray*") {
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MathMatrixInset * p = new MathMatrixInset(LM_OT_EQNARRAY);
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parse_lines(p, !stared(name), true);
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return p;
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}
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if (name == "align" || name == "align*") {
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MathMatrixInset * p = new MathMatrixInset(LM_OT_ALIGN);
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parse_lines(p, !stared(name), true);
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return p;
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}
|
||
|
||
if (name == "alignat" || name == "alignat*") {
|
||
MathMatrixInset * p =
|
||
new MathMatrixInset(LM_OT_ALIGNAT, 2 * atoi(getArg('{', '}').c_str()));
|
||
parse_lines(p, !stared(name), true);
|
||
return p;
|
||
}
|
||
|
||
if (name == "xalignat" || name == "xalignat*") {
|
||
MathMatrixInset * p =
|
||
new MathMatrixInset(LM_OT_XALIGNAT, 2 * atoi(getArg('{', '}').c_str()));
|
||
parse_lines(p, !stared(name), true);
|
||
return p;
|
||
}
|
||
|
||
if (name == "xxalignat") {
|
||
MathMatrixInset * p =
|
||
new MathMatrixInset(LM_OT_XXALIGNAT, 2 * atoi(getArg('{', '}').c_str()));
|
||
parse_lines(p, !stared(name), true);
|
||
return p;
|
||
}
|
||
|
||
if (name == "multline" || name == "multline*") {
|
||
MathMatrixInset * p = new MathMatrixInset(LM_OT_MULTLINE);
|
||
parse_lines(p, !stared(name), true);
|
||
return p;
|
||
}
|
||
|
||
if (name == "gather" || name == "gather*") {
|
||
MathMatrixInset * p = new MathMatrixInset(LM_OT_GATHER);
|
||
parse_lines(p, !stared(name), true);
|
||
return p;
|
||
}
|
||
|
||
lyxerr[Debug::MATHED] << "1: unknown math environment: " << name << "\n";
|
||
return 0;
|
||
}
|
||
|
||
|
||
latexkeys const * Parser::read_delim()
|
||
{
|
||
Token const & t = getToken();
|
||
latexkeys const * l = in_word_set(t.asString());
|
||
return l ? l : in_word_set(".");
|
||
}
|
||
|
||
|
||
void Parser::parse_into(MathArray & array, unsigned flags, MathTextCodes code)
|
||
{
|
||
MathTextCodes yyvarcode = LM_TC_MIN;
|
||
|
||
bool panic = false;
|
||
int limits = 0;
|
||
|
||
while (good()) {
|
||
Token const & t = getToken();
|
||
|
||
//lyxerr << "t: " << t << " flags: " << flags << "'\n";
|
||
//array.dump(lyxerr);
|
||
//lyxerr << "\n";
|
||
|
||
if (flags & FLAG_ITEM) {
|
||
flags &= ~FLAG_ITEM;
|
||
if (t.cat() == catBegin) {
|
||
// skip the brace and collect everything to the next matching
|
||
// closing brace
|
||
flags |= FLAG_BRACE_LAST;
|
||
continue;
|
||
} else {
|
||
// handle only this single token, leave the loop if done
|
||
flags |= FLAG_LEAVE;
|
||
}
|
||
}
|
||
|
||
if (flags & FLAG_BRACE) {
|
||
if (t.cat() != catBegin) {
|
||
error("Expected {. Maybe you forgot to enclose an argument in {}");
|
||
panic = true;
|
||
break;
|
||
} else {
|
||
flags &= ~FLAG_BRACE;
|
||
continue;
|
||
}
|
||
}
|
||
|
||
if (flags & FLAG_BLOCK) {
|
||
if (t.cat() == catAlign || t.cs() == "\\")
|
||
return;
|
||
if (t.cs() == "end") {
|
||
getArg('{', '}');
|
||
return;
|
||
}
|
||
}
|
||
|
||
//
|
||
// cat codes
|
||
//
|
||
if (t.cat() == catMath)
|
||
break;
|
||
|
||
else if (t.cat() == catLetter)
|
||
array.push_back(new MathCharInset(t.character(), yyvarcode));
|
||
|
||
else if (t.cat() == catSpace &&
|
||
(yyvarcode == LM_TC_TEXTRM || code == LM_TC_TEXTRM))
|
||
array.push_back(new MathCharInset(' ', yyvarcode));
|
||
|
||
else if (t.cat() == catParameter) {
|
||
Token const & n = getToken();
|
||
MathMacroArgument * p = new MathMacroArgument(n.character() - '0');
|
||
array.push_back(p);
|
||
}
|
||
|
||
else if (t.cat() == catBegin) {
|
||
array.push_back(new MathCharInset('{', LM_TC_TEX));
|
||
}
|
||
|
||
else if (t.cat() == catEnd) {
|
||
if (flags & FLAG_BRACE_LAST)
|
||
return;
|
||
array.push_back(new MathCharInset('}', LM_TC_TEX));
|
||
}
|
||
|
||
else if (t.cat() == catAlign) {
|
||
lyxerr << "found tab unexpectedly, array: '" << array << "'\n";
|
||
array.push_back(new MathCharInset('&', LM_TC_TEX));
|
||
}
|
||
|
||
else if (t.cat() == catSuper)
|
||
parse_into(lastScriptInset(array, true, limits)->cell(0), FLAG_ITEM);
|
||
|
||
else if (t.cat() == catSub)
|
||
parse_into(lastScriptInset(array, false, limits)->cell(1), FLAG_ITEM);
|
||
|
||
else if (t.character() == ']' && (flags & FLAG_BRACK_END))
|
||
return;
|
||
|
||
else if (t.cat() == catOther)
|
||
array.push_back(new MathCharInset(t.character(), yyvarcode));
|
||
|
||
//
|
||
// codesequences
|
||
//
|
||
else if (t.cs() == "protect")
|
||
;
|
||
|
||
else if (t.cs() == "end")
|
||
break;
|
||
|
||
else if (t.cs() == ")")
|
||
break;
|
||
|
||
else if (t.cs() == "]")
|
||
break;
|
||
|
||
else if (t.cs() == "\\") {
|
||
curr_skip_ = getArg('[', ']');
|
||
if (flags & FLAG_NEWLINE)
|
||
return;
|
||
lyxerr[Debug::MATHED]
|
||
<< "found newline unexpectedly, array: '" << array << "'\n";
|
||
array.push_back(createMathInset("\\"));
|
||
}
|
||
|
||
else if (t.cs() == "limits")
|
||
limits = 1;
|
||
|
||
else if (t.cs() == "nolimits")
|
||
limits = -1;
|
||
|
||
else if (t.cs() == "nonumber")
|
||
curr_num_ = false;
|
||
|
||
else if (t.cs() == "number")
|
||
curr_num_ = true;
|
||
|
||
else if (t.cs() == "sqrt") {
|
||
char c = getChar();
|
||
if (c == '[') {
|
||
array.push_back(new MathRootInset);
|
||
parse_into(array.back()->cell(0), FLAG_BRACK_END);
|
||
parse_into(array.back()->cell(1), FLAG_ITEM);
|
||
} else {
|
||
putback();
|
||
array.push_back(new MathSqrtInset);
|
||
parse_into(array.back()->cell(0), FLAG_ITEM);
|
||
}
|
||
}
|
||
|
||
else if (t.cs() == "left") {
|
||
latexkeys const * l = read_delim();
|
||
MathArray ar;
|
||
parse_into(ar, FLAG_RIGHT);
|
||
latexkeys const * r = read_delim();
|
||
MathDelimInset * dl = new MathDelimInset(l, r);
|
||
dl->cell(0) = ar;
|
||
array.push_back(dl);
|
||
}
|
||
|
||
else if (t.cs() == "right") {
|
||
if (!(flags & FLAG_RIGHT))
|
||
error("Unmatched right delimiter");
|
||
return;
|
||
}
|
||
|
||
/*
|
||
case LM_TK_STY:
|
||
{
|
||
lyxerr[Debug::MATHED] << "LM_TK_STY not implemented\n";
|
||
//MathArray tmp = array;
|
||
//MathSizeInset * p = new MathSizeInset(MathStyles(lval_->id));
|
||
//array.push_back(p);
|
||
//parse_into(p->cell(0), FLAG_BRACE_FONT);
|
||
break;
|
||
}
|
||
|
||
else LM_TK_SPECIAL:
|
||
array.push_back(new MathCharInset(ival_, LM_TC_TEX));
|
||
break;
|
||
*/
|
||
|
||
else if (t.cs() == "begin") {
|
||
string const name = getArg('{', '}');
|
||
if (name == "array") {
|
||
string const valign = getArg('[', ']') + 'c';
|
||
string const halign = getArg('{', '}');
|
||
MathArrayInset * m = new MathArrayInset(halign.size(), 1);
|
||
m->valign(valign[0]);
|
||
m->halign(halign);
|
||
parse_lines(m, false, false);
|
||
array.push_back(m);
|
||
} else
|
||
lyxerr[Debug::MATHED] << "unknow math inset begin '" << name << "'\n";
|
||
}
|
||
|
||
else if (t.cs() == "kern") {
|
||
#ifdef WITH_WARNINGS
|
||
#warning A hack...
|
||
#endif
|
||
string s;
|
||
while (1) {
|
||
Token const & t = getToken();
|
||
if (!good()) {
|
||
putback();
|
||
break;
|
||
}
|
||
s += t.character();
|
||
if (isValidLength(s))
|
||
break;
|
||
}
|
||
array.push_back(new MathKernInset(s));
|
||
}
|
||
|
||
else if (t.cs() == "label") {
|
||
//MathArray ar;
|
||
//parse_into(ar, FLAG_ITEM);
|
||
//ostringstream os;
|
||
//ar.write(os, true);
|
||
//curr_label_ = os.str();
|
||
// was:
|
||
curr_label_ = getArg('{', '}');
|
||
}
|
||
|
||
else if (t.cs() == "choose" || t.cs() == "over" || t.cs() == "atop") {
|
||
limits = 0;
|
||
MathInset * p = createMathInset(t.cs());
|
||
// search backward for position of last '{' if any
|
||
int pos;
|
||
for (pos = array.size() - 1; pos >= 0; --pos) {
|
||
MathInset * q = array.nextInset(pos);
|
||
if (q->getChar() == '{')
|
||
break;
|
||
}
|
||
if (pos >= 0) {
|
||
// found it -> use the part after '{' as "numerator", erase the '{'
|
||
p->cell(0) = MathArray(array, pos + 1, array.size());
|
||
array.erase(pos, array.size());
|
||
} else {
|
||
// not found -> use everything as "numerator"
|
||
p->cell(0).swap(array);
|
||
}
|
||
array.push_back(p);
|
||
parse_into(p->cell(1), FLAG_BLOCK);
|
||
}
|
||
|
||
else if (t.cs().size()) {
|
||
limits = 0;
|
||
latexkeys const * l = in_word_set(t.cs());
|
||
if (l) {
|
||
if (l->token == LM_TK_FONT) {
|
||
//lyxerr << "starting font\n";
|
||
//CatCode catSpaceSave = theCatcode[' '];
|
||
//if (l->id == LM_TC_TEXTRM) {
|
||
// // temporarily change catcode
|
||
// theCatcode[' '] = catLetter;
|
||
//}
|
||
|
||
MathTextCodes t = static_cast<MathTextCodes>(l->id);
|
||
MathArray ar;
|
||
parse_into(ar, FLAG_ITEM, t);
|
||
for (MathArray::iterator it = ar.begin(); it != ar.end(); ++it)
|
||
(*it)->handleFont(t);
|
||
array.push_back(ar);
|
||
|
||
// undo catcode changes
|
||
////theCatcode[' '] = catSpaceSave;
|
||
//lyxerr << "ending font\n";
|
||
}
|
||
|
||
else if (l->token == LM_TK_OLDFONT)
|
||
yyvarcode = static_cast<MathTextCodes>(l->id);
|
||
|
||
else {
|
||
MathInset * p = createMathInset(t.cs());
|
||
for (int i = 0; i < p->nargs(); ++i)
|
||
parse_into(p->cell(i), FLAG_ITEM);
|
||
array.push_back(p);
|
||
}
|
||
}
|
||
|
||
else {
|
||
MathInset * p = createMathInset(t.cs());
|
||
if (p) {
|
||
for (int i = 0; i < p->nargs(); ++i)
|
||
parse_into(p->cell(i), FLAG_ITEM);
|
||
array.push_back(p);
|
||
} else {
|
||
error("Unrecognized token");
|
||
//lyxerr[Debug::MATHED] << "[" << t << "]\n";
|
||
lyxerr << t << "\n";
|
||
}
|
||
}
|
||
}
|
||
|
||
|
||
if (flags & FLAG_LEAVE) {
|
||
flags &= ~FLAG_LEAVE;
|
||
break;
|
||
}
|
||
}
|
||
|
||
if (panic) {
|
||
lyxerr << " Math Panic, expect problems!\n";
|
||
// Search for the end command.
|
||
Token t;
|
||
do {
|
||
t = getToken();
|
||
} while (good() && t.cs() != "end");
|
||
}
|
||
}
|
||
|
||
} // anonymous namespace
|
||
|
||
|
||
|
||
MathArray mathed_parse_cell(string const & str)
|
||
{
|
||
istringstream is(str.c_str());
|
||
Parser parser(is);
|
||
MathArray ar;
|
||
parser.parse_into(ar, 0);
|
||
return ar;
|
||
}
|
||
|
||
|
||
|
||
MathMacroTemplate * mathed_parse_macro(string const & str)
|
||
{
|
||
istringstream is(str.c_str());
|
||
Parser parser(is);
|
||
return parser.parse_macro();
|
||
}
|
||
|
||
MathMacroTemplate * mathed_parse_macro(istream & is)
|
||
{
|
||
Parser parser(is);
|
||
return parser.parse_macro();
|
||
}
|
||
|
||
MathMacroTemplate * mathed_parse_macro(LyXLex & lex)
|
||
{
|
||
Parser parser(lex);
|
||
return parser.parse_macro();
|
||
}
|
||
|
||
|
||
|
||
MathMatrixInset * mathed_parse_normal(string const & str)
|
||
{
|
||
istringstream is(str.c_str());
|
||
Parser parser(is);
|
||
return parser.parse_normal();
|
||
}
|
||
|
||
MathMatrixInset * mathed_parse_normal(istream & is)
|
||
{
|
||
Parser parser(is);
|
||
return parser.parse_normal();
|
||
}
|
||
|
||
MathMatrixInset * mathed_parse_normal(LyXLex & lex)
|
||
{
|
||
Parser parser(lex);
|
||
return parser.parse_normal();
|
||
}
|