suzanne.soy/scribble-mathjax
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Fix problem with prescripts being lost if they appear with no base at the end of the expression, and a problem with prescripts when they are before an open brace.

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This commit is contained in:
Davide P. Cervone 2015-08-12 09:24:31 -04:00
parent 49bdd1e9fa
commit 2e6b2bb3f0
1 changed files with 9 additions and 6 deletions
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15
unpacked/extensions/TeX/mhchem.js
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@ -124,7 +124,7 @@ MathJax.Hub.Register.StartupHook("TeX Jax Ready",function () {
else if (c.match(/[0-9]/)) {this.ParseNumber()}
else {this["Parse"+(this.ParseTable[c]||"Other")](c)}
}
this.FinishAtom();
this.FinishAtom(true);
return this.TEX;
},
@ -301,21 +301,24 @@ MathJax.Hub.Register.StartupHook("TeX Jax Ready",function () {
//
// Handle the super and subscripts for an atom
//
FinishAtom: function () {
FinishAtom: function (force) {
if (this.sup || this.sub || this.presup || this.presub) {
if (!this.atom && this.tex === "") {
if (!this.atom && this.tex === "" && !force) {
this.presup = this.sup, this.presub = this.sub; // save for later
this.sub = this.sup = "";
return;
}
if (this.sub && !this.sup) {this.sup = "\\Space{0pt}{0pt}{.2em}"} // forces subscripts to align properly
if (this.presup || this.presub) {
if ((this.presup || this.presub) && this.tex !== "{") {
if (!this.presup && !this.sup) {this.presup = "\\Space{0pt}{0pt}{.2em}"}
this.tex = "\\CEprescripts{"+(this.presub||"\\CEnone")+"}{"+(this.presup||"\\CEnone")+"}"
+ "{"+this.tex+"}{"+(this.sub||"\\CEnone")+"}{"+(this.sup||"\\CEnone")+"}";
+ "{"+(this.tex !== "}" ? this.tex : "")+"}"
+" {"+(this.sub||"\\CEnone")+"}{"+(this.sup||"\\CEnone")+"}"
+ (this.tex === "}" ? "}" : "");
this.presub = this.presup = "";
} else {
this.tex += "^{"+this.sup+"}_{"+this.sub+"}";
if (this.sup) this.tex += "^{"+this.sup+"}";
if (this.sub) this.tex += "_{"+this.sub+"}";
}
this.sup = this.sub = "";
}