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Combine adjacent REL operators into a single <mo> tag (resolves bug #3074348)

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git-svn-id: https://mathjax.svn.sourceforge.net/svnroot/mathjax/trunk@611 b8fd5906-0fad-46e2-a0d3-10d94ff285d1
This commit is contained in:
dpvc 2010-09-28 01:19:44 +00:00
parent ee4a142258
commit bf75061186
2 changed files with 21 additions and 3 deletions
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4
mathjax/jax/input/TeX/jax.js
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20
mathjax/unpacked/jax/input/TeX/jax.js
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@ -1704,12 +1704,16 @@
}
if (mml.inferred) {mml = MML.apply(MathJax.ElementJax,mml.data)} else {mml = MML(mml)}
if (displaystyle) {mml.root.display = "block"}
return mml;
return this.postfilterMath(mml,displaystyle,script);
},
prefilterMath: function (math,displaystyle,script) {
// avoid parsing super- and subscript numbers as a unit
return math.replace(/([_^]\s*\d)([0-9.,])/g,"$1 $2");
},
postfilterMath: function (math,displaystyle,script) {
this.combineRelations(math.root);
return math;
},
formatError: function (err,math,displaystyle,script) {
return MML.merror(err.message.replace(/\n.*/,""));
},
@ -1718,6 +1722,20 @@
},
Macro: function (name,def,argn) {
TEXDEF.macros[name] = ['Macro'].concat([].slice.call(arguments,1));
},
combineRelations: function (mml) {
for (var i = 0, m = mml.data.length; i < m; i++) {
if (mml.data[i]) {
while (i+1 < m && mml.data[i].isa(MML.mo) && mml.data[i+1].isa(MML.mo) &&
mml.data[i].Get("texClass") === MML.TEXCLASS.REL &&
mml.data[i+1].Get("texClass") === MML.TEXCLASS.REL) {
mml.data[i].Append.apply(mml.data[i],mml.data[i+1].data);
mml.data.splice(i+1,1); m--;
}
if (!mml.data[i].isToken) {this.combineRelations(mml.data[i])}
}
}
}
});