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Merge branch 'issue1151' into hotfix-2.5.2. Issue #1151.

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Davide P. Cervone 2015-04-13 18:02:44 -04:00
commit b474fc7f52
1 changed files with 8 additions and 1 deletions
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unpacked/extensions/TeX/mathchoice.js
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@ -45,10 +45,17 @@ MathJax.Hub.Register.StartupHook("TeX Jax Ready",function () {
MML.TeXmathchoice = MML.mbase.Subclass({ MML.TeXmathchoice = MML.mbase.Subclass({
type: "TeXmathchoice", notParent: true, type: "TeXmathchoice", notParent: true,
choice: function (nocache) { choice: function () {
if (this.selection != null) return this.selection;
if (this.choosing) return 2; // prevent infinite loops: see issue #1151
this.choosing = true;
var selection = 0, values = this.getValues("displaystyle","scriptlevel"); var selection = 0, values = this.getValues("displaystyle","scriptlevel");
if (values.scriptlevel > 0) {selection = Math.min(3,values.scriptlevel+1)} if (values.scriptlevel > 0) {selection = Math.min(3,values.scriptlevel+1)}
else {selection = (values.displaystyle ? 0 : 1)} else {selection = (values.displaystyle ? 0 : 1)}
// only cache the result if we are actually in place in a <math> tag.
var node = this.inherit; while (node && node.type !== "math") node = node.inherit;
if (node) this.selection = selection;
this.choosing = false;
return selection; return selection;
}, },
selected: function () {return this.data[this.choice()]}, selected: function () {return this.data[this.choice()]},