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bugfix: in some cases the parser created unecessary extra braces

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git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@3499 a592a061-630c-0410-9148-cb99ea01b6c8
This commit is contained in:
André Pönitz 2002-02-07 09:47:21 +00:00
parent a64a948cea
commit e5e39c1884
3 changed files with 21 additions and 1 deletions
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2
src/mathed/math_braceinset.h
View File

@ -20,6 +20,8 @@ public:
///
MathInset * clone() const;
///
MathBraceInset * asBraceInset() { return this; }
///
void draw(Painter &, int x, int y) const;
///
void write(WriteStream & os) const;

2
src/mathed/math_inset.h
View File

@ -47,6 +47,7 @@ inclusion in the "real LyX insets" FormulaInset and FormulaMacroInset.
class MathArrayInset;
class MathBraceInset;
class MathBoxInset;
class MathCharInset;
class MathDelimInset;
@ -176,6 +177,7 @@ public:
/// identifies certain types of insets
virtual MathArrayInset * asArrayInset() { return 0; }
virtual MathBraceInset * asBraceInset() { return 0; }
virtual MathBoxInset * asBoxInset() { return 0; }
virtual MathBoxInset const * asBoxInset() const { return 0; }
virtual MathCharInset const * asCharInset() const { return 0; }

18
src/mathed/math_parser.C
View File

@ -256,6 +256,8 @@ public:
void putback();
private:
///
void parse_into1(MathArray & array, unsigned flags, MathTextCodes);
///
string getArg(char lf, char rf);
///
@ -521,6 +523,7 @@ void Parser::error(string const & msg)
}
bool Parser::parse_lines(MathAtom & t, bool numbered, bool outmost)
{
MathGridInset * p = t->asGridInset();
@ -545,7 +548,11 @@ bool Parser::parse_lines(MathAtom & t, bool numbered, bool outmost)
for (MathInset::col_type col = 0; col < p->ncols(); ++col) {
//lyxerr << "reading cell " << row << " " << col << "\n";
parse_into(p->cell(col + row * p->ncols()), FLAG_BLOCK);
MathArray & ar = p->cell(col + row * p->ncols());
parse_into(ar, FLAG_BLOCK);
// remove 'unnecessary' braces:
if (ar.size() == 1 && ar.back()->asBraceInset())
ar = ar.back()->asBraceInset()->cell(0);
// break if cell is not followed by an ampersand
if (nextToken().cat() != catAlign) {
@ -824,6 +831,15 @@ bool Parser::parse_normal(MathAtom & matrix)
void Parser::parse_into(MathArray & array, unsigned flags, MathTextCodes code)
{
parse_into1(array, flags, code);
// remove 'unnecessary' braces:
if (array.size() == 1 && array.back()->asBraceInset())
array = array.back()->asBraceInset()->cell(0);
}
void Parser::parse_into1(MathArray & array, unsigned flags, MathTextCodes code)
{
bool panic = false;
int limits = 0;