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Merge branch 'issue956' into develop. Issue #956.

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This commit is contained in:
Davide P. Cervone 2015-07-16 15:39:05 -04:00
commit f42c71feca
1 changed files with 42 additions and 16 deletions
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58
unpacked/extensions/TeX/mhchem.js
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@ -42,10 +42,13 @@ MathJax.Hub.Register.StartupHook("TeX Jax Ready",function () {
var CE = MathJax.Object.Subclass({
string: "", // the \ce string being parsed
i: 0, // the current position in the string
tex: "", // the processed TeX result
tex: "", // the partially processed TeX result
TEX: "", // the full TeX result
atom: false, // last processed token is an atom
sup: "", // pending superscript
sub: "", // pending subscript
presup: "", // pending pre-superscript
presub: "", // pending pre-subscript
//
// Store the string when a CE object is created
@ -122,7 +125,7 @@ MathJax.Hub.Register.StartupHook("TeX Jax Ready",function () {
else {this["Parse"+(this.ParseTable[c]||"Other")](c)}
}
this.FinishAtom();
return this.tex;
return this.TEX;
},
//
@ -299,22 +302,24 @@ MathJax.Hub.Register.StartupHook("TeX Jax Ready",function () {
// Handle the super and subscripts for an atom
//
FinishAtom: function () {
if (this.sup || this.sub) {
if (this.sup && this.sub && !this.atom) {
//
// right-justify super- and subscripts when they are before the atom
//
var sup = this.sup, sub = this.sub;
if (!sup.match(/\d/)) {sup += "\\vphantom{0}"} // force common heights
if (!sub.match(/\d/)) {sub += "\\vphantom{0}"}
this.tex += "\\raise 1pt{\\scriptstyle\\begin{CEscriptstack}"+sup+"\\\\"+
sub+"\\end{CEscriptstack}}\\kern-.125em ";
if (this.sup || this.sub || this.presup || this.presub) {
if (!this.atom && this.tex === "") {
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.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.presub = this.presup = "";
} else {
if (!this.sup) {this.sup = "\\Space{0pt}{0pt}{.2em}"} // forces subscripts to align properly
this.tex += "^{"+this.sup+"}_{"+this.sub+"}";
}
this.sup = this.sub = "";
}
this.TEX += this.tex; this.tex = "";
this.atom = false;
},
@ -376,7 +381,7 @@ MathJax.Hub.Register.StartupHook("TeX Jax Ready",function () {
ce: 'CE',
cf: 'CE',
cee: 'CE',
//
// Make these load AMSmath package (redefined below when loaded)
//
@ -395,6 +400,12 @@ MathJax.Hub.Register.StartupHook("TeX Jax Ready",function () {
//
hyphen: ["Macro","\\text{-}"],
//
// Handle prescripts and none
//
CEprescripts: "CEprescripts",
CEnone: "CEnone",
//
// Needed for \bond for the ~ forms
//
@ -405,8 +416,7 @@ MathJax.Hub.Register.StartupHook("TeX Jax Ready",function () {
// Needed for \bond for the ~ forms
//
environment: {
CEstack: ['Array',null,null,null,'r',null,"0.001em",'T',1],
CEscriptstack: ['Array',null,null,null,'r',null,"0.2em",'S',1]
CEstack: ['Array',null,null,null,'r',null,"0.001em",'T',1]
}
},null,true);
@ -445,6 +455,22 @@ MathJax.Hub.Register.StartupHook("TeX Jax Ready",function () {
var arg = this.GetArgument(name);
var tex = CE(arg).Parse();
this.string = tex + this.string.substr(this.i); this.i = 0;
},
//
// Implements \CEprescripts{presub}{presup}{base}{sub}{sup}
//
CEprescripts: function (name) {
var presub = this.ParseArg(name),
presup = this.ParseArg(name),
base = this.ParseArg(name),
sub = this.ParseArg(name),
sup = this.ParseArg(name);
var MML = MathJax.ElementJax.mml;
this.Push(MML.mmultiscripts(base,sub,sup,MML.mprescripts(),presub,presup));
},
CEnone: function (name) {
this.Push(MathJax.ElementJax.mml.none());
}
});