commit 7e6597a5b47c22ed22966a75c149264dacd6e289
Author: Thibaut Cuvelier <[email protected]>
Date: Mon Mar 11 02:00:47 2024 +0100
MathML: don't let the processor stretch operators when they are single
characters for LyX.
The main goal is to match TeX' behaviour. If you want stretchy operators,
use InsetMathDelim / \left & \right. This patch will change the output in many
files, but making the rendering much closer to that of TeX (which users should
expect, due to LyX' roots in TeX).
---
src/mathed/InsetMathChar.cpp | 6 ++++--
1 file changed, 4 insertions(+), 2 deletions(-)
diff --git a/src/mathed/InsetMathChar.cpp b/src/mathed/InsetMathChar.cpp
index 71aba6f6f7..a642a5e6da 100644
--- a/src/mathed/InsetMathChar.cpp
+++ b/src/mathed/InsetMathChar.cpp
@@ -230,6 +230,8 @@ void InsetMathChar::octave(OctaveStream & os) const
// mathalpha, then we'll treat it as an identifier, otherwise as an
// operator.
// Worst case: We get bad spacing, or bad italics.
+// In any case, never let MathML stretch a single character when it
+// is recognised as an operator, to match TeX' behaviour.
void InsetMathChar::mathmlize(MathMLStream & ms) const
{
std::string entity;
@@ -253,7 +255,7 @@ void InsetMathChar::mathmlize(MathMLStream & ms) const
}
if (!entity.empty()) {
- ms << MTagInline("mo")
+ ms << MTagInline("mo", "stretchy='false'")
<< from_ascii(entity)
<< ETagInline("mo");
return;
@@ -262,7 +264,7 @@ void InsetMathChar::mathmlize(MathMLStream & ms) const
char const * type =
(isAlphaASCII(char_) || Encodings::isMathAlpha(char_))
? "mi" : "mo";
- ms << MTagInline(type)
+ ms << MTagInline(type, std::string(type) == "mo" ? "stretchy='false'" :
"")
<< char_type(char_)
<< ETagInline(type);
}
--
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