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Fix bug #7668 (cosmetic whitespace issues)

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git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@40184 a592a061-630c-0410-9148-cb99ea01b6c8
This commit is contained in:
Georg Baum 2011-11-13 11:29:48 +00:00
parent 2a216184c4
commit 8d707723b7
5 changed files with 55 additions and 23 deletions
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42
lib/syntax.default
View File

@ -703,30 +703,30 @@ thebibliography{}
% Environments that start math mode.
% $...$, $$...$$, \(...\) and \[...\] are hardcoded in tex2lyx.
% The arguments are currently ignored.
% The arguments are currently ignored (apart from displaymath).
\begin{mathenvironments}
equation
equation*
eqnarray
eqnarray*
align
align*
gather
gather*
multline
multline*
math
displaymath
flalign
flalign
equation{displaymath}
equation*{displaymath}
eqnarray{displaymath}
eqnarray*{displaymath}
align{displaymath}
align*{displaymath}
gather{displaymath}
gather*{displaymath}
multline{displaymath}
multline*{displaymath}
math{}
displaymath{displaymath}
flalign{displaymath}
flalign{displaymath}
% These require extra args
alignat
alignat*
xalignat
xalignat*
xxalignat
alignat{}{displaymath}
alignat*{displaymath}
xalignat{}{displaymath}
xalignat*{}{displaymath}
xxalignat{}{displaymath}
% These are not known by LyX but work nevertheless:
empheq
empheq[]{}{displaymath}
\end{mathenvironments}
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

10
src/tex2lyx/math.cpp
View File

@ -27,6 +27,16 @@ bool is_math_env(string const & name)
}
bool is_display_math_env(string const & name)
{
CommandMap::const_iterator it = known_math_environments.find(name);
if (it != known_math_environments.end())
if (!it->second.empty())
return it->second.back() == displaymath;
return false;
}
void parse_math(Parser & p, ostream & os, unsigned flags, const mode_type mode)
{
while (p.good()) {

2
src/tex2lyx/tex2lyx.cpp
View File

@ -357,6 +357,8 @@ void read_command(Parser & p, string command, CommandMap & commands)
arguments.push_back(required);
else if (arg == "item")
arguments.push_back(item);
else if (arg == "displaymath")
arguments.push_back(displaymath);
else
arguments.push_back(verbatim);
} else {

4
src/tex2lyx/tex2lyx.h
View File

@ -84,6 +84,7 @@ std::string join(std::vector<std::string> const & input,
char const * delim);
bool is_math_env(std::string const & name);
bool is_display_math_env(std::string const & name);
char const * const * is_known(std::string const &, char const * const *);
/*!
@ -117,7 +118,8 @@ enum ArgumentType {
required,
verbatim,
item,
optional
optional,
displaymath,
};
class FullCommand {

20
src/tex2lyx/text.cpp
View File

@ -689,6 +689,7 @@ void parse_arguments(string const & command,
else
ert += p.verbatim_item();
break;
case displaymath:
case verbatim:
// This argument may contain special characters
ert += '{' + p.verbatim_item() + '}';
@ -1157,6 +1158,12 @@ void parse_environment(Parser & p, ostream & os, bool outer,
parse_math(p, os, FLAG_END, MATH_MODE);
os << "\\end{" << name << "}";
end_inset(os);
if (is_display_math_env(name)) {
// Prevent the conversion of a line break to a space
// (bug 7668). This does not change the output, but
// looks ugly in LyX.
eat_whitespace(p, os, parent_context, false);
}
}
else if (unstarred_name == "tabular" || name == "longtable") {
@ -1900,7 +1907,8 @@ void parse_text(Parser & p, ostream & os, unsigned flags, bool outer,
context.check_layout(os);
begin_inset(os, "Formula ");
Token const & n = p.get_token();
if (n.cat() == catMath && outer) {
bool const display(n.cat() == catMath && outer);
if (display) {
// TeX's $$...$$ syntax for displayed math
os << "\\[";
parse_math(p, os, FLAG_SIMPLE, MATH_MODE);
@ -1914,6 +1922,12 @@ void parse_text(Parser & p, ostream & os, unsigned flags, bool outer,
os << '$';
}
end_inset(os);
if (display) {
// Prevent the conversion of a line break to a
// space (bug 7668). This does not change the
// output, but looks ugly in LyX.
eat_whitespace(p, os, context, false);
}
}
else if (t.cat() == catSuper || t.cat() == catSub)
@ -2160,6 +2174,10 @@ void parse_text(Parser & p, ostream & os, unsigned flags, bool outer,
parse_math(p, os, FLAG_EQUATION, MATH_MODE);
os << "\\]";
end_inset(os);
// Prevent the conversion of a line break to a space
// (bug 7668). This does not change the output, but
// looks ugly in LyX.
eat_whitespace(p, os, context, false);
}
else if (t.cs() == "begin")