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Fix alignment of prescripts in mhchem to properly right-justify (won't work well in NativeMML output, but then neither do several other features)

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Davide P. Cervone 2012-03-19 08:39:45 -04:00
parent 7c6b2c01df
commit d542c87077
3 changed files with 90 additions and 14 deletions
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82
config/TeX-MML-AM_HTMLorMML-full.js
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2
extensions/TeX/mhchem.js
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20
unpacked/extensions/TeX/mhchem.js
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@ -302,17 +302,14 @@ MathJax.Hub.Register.StartupHook("TeX Jax Ready",function () {
// right-justify super- and subscripts when they are before the atom // right-justify super- and subscripts when they are before the atom
// //
var sup = this.sup, sub = this.sub; var sup = this.sup, sub = this.sub;
var n = Math.abs(sup.replace(/[^\d]/g,"").length-sub.replace(/[^\d]/g,"").length); if (!sup.match(/\d/)) {sup += "\\vphantom{0}"} // force common heights
if (n) { if (!sub.match(/\d/)) {sub += "\\vphantom{0}"}
var zeros = "0000000000".substr(0,n); this.tex += "\\raise 1pt{\\scriptstyle\\begin{CEscriptstack}"+sup+"\\\\"+
var script = (sup.length > sub.length ? "sub" : "sup"); sub+"\\end{CEscriptstack}}\\kern-.125em ";
this[script] = "\\phantom{"+zeros+"}" + this[script]; } else {
} if (!this.sup) {this.sup = "\\Space{0pt}{0pt}{.2em}"} // forces subscripts to align properly
if (sup.charAt(0) === "-" && sub.charAt(0) !== "-") {this.sub = "\\phantom{-}"+this.sub} this.tex += "^{"+this.sup+"}_{"+this.sub+"}";
if (sub.charAt(0) === "-" && sup.charAt(0) !== "-") {this.sup = "\\phantom{-}"+this.sup}
} }
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.sup = this.sub = "";
} }
this.atom = false; this.atom = false;
@ -388,7 +385,8 @@ MathJax.Hub.Register.StartupHook("TeX Jax Ready",function () {
// Needed for \bond for the ~ forms // Needed for \bond for the ~ forms
// //
MACROS.tripledash = ["Macro","\\raise3mu{\\tiny\\text{-}\\kern2mu\\text{-}\\kern2mu\\text{-}}"]; MACROS.tripledash = ["Macro","\\raise3mu{\\tiny\\text{-}\\kern2mu\\text{-}\\kern2mu\\text{-}}"];
TEX.Definitions.environment.CEstack = ['Array',null,null,null,'r',null,"0.001em",'T',1] TEX.Definitions.environment.CEstack = ['Array',null,null,null,'r',null,"0.001em",'T',1];
TEX.Definitions.environment.CEscriptstack = ['Array',null,null,null,'r',null,"0.2em",'S',1];
// //
// Add \hyphen used in some mhchem examples // Add \hyphen used in some mhchem examples