suzanne.soy/scribble-math
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Don't produce doube exponent/subscript errors for UnderOver constructs like \underline and \overbrace. Resolves issue reported on StackExchange.

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This commit is contained in:
Davide P. Cervone 2015-01-06 17:47:48 -05:00
parent d6b6b2e249
commit cce02ddfde
2 changed files with 8 additions and 6 deletions
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2
unpacked/extensions/TeX/AMSmath.js
View File

@ -391,7 +391,7 @@ MathJax.Hub.Register.StartupHook("TeX Jax Ready",function () {
bot = TEX.Parse(bot,this.stack.env).mml() bot = TEX.Parse(bot,this.stack.env).mml()
mml.SetData(mml.under,MML.mpadded(bot).With(def).With({voffset:"-.24em"})); mml.SetData(mml.under,MML.mpadded(bot).With(def).With({voffset:"-.24em"}));
} }
this.Push(mml); this.Push(mml.With({subsupOK:true}));
}, },
/* /*

12
unpacked/jax/input/TeX/jax.js
View File

@ -1193,7 +1193,7 @@
if (base.isEmbellishedWrapper) {base = base.data[0].data[0]} if (base.isEmbellishedWrapper) {base = base.data[0].data[0]}
var movesupsub = base.movesupsub, position = base.sup; var movesupsub = base.movesupsub, position = base.sup;
if ((base.type === "msubsup" && base.data[base.sup]) || if ((base.type === "msubsup" && base.data[base.sup]) ||
(base.type === "munderover" && base.data[base.over])) (base.type === "munderover" && base.data[base.over] && !base.subsupOK))
{TEX.Error(["DoubleExponent","Double exponent: use braces to clarify"])} {TEX.Error(["DoubleExponent","Double exponent: use braces to clarify"])}
if (base.type !== "msubsup") { if (base.type !== "msubsup") {
if (movesupsub) { if (movesupsub) {
@ -1220,7 +1220,7 @@
if (base.isEmbellishedWrapper) {base = base.data[0].data[0]} if (base.isEmbellishedWrapper) {base = base.data[0].data[0]}
var movesupsub = base.movesupsub, position = base.sub; var movesupsub = base.movesupsub, position = base.sub;
if ((base.type === "msubsup" && base.data[base.sub]) || if ((base.type === "msubsup" && base.data[base.sub]) ||
(base.type === "munderover" && base.data[base.under])) (base.type === "munderover" && base.data[base.under] && !base.subsupOK))
{TEX.Error(["DoubleSubscripts","Double subscripts: use braces to clarify"])} {TEX.Error(["DoubleSubscripts","Double subscripts: use braces to clarify"])}
if (base.type !== "msubsup") { if (base.type !== "msubsup") {
if (movesupsub) { if (movesupsub) {
@ -1433,10 +1433,12 @@
if (base.isa(MML.munderover) && base.isEmbellished()) if (base.isa(MML.munderover) && base.isEmbellished())
{base = MML.mrow(MML.mo().With({rspace:0}),base)} // add an empty <mi> so it's not embellished any more {base = MML.mrow(MML.mo().With({rspace:0}),base)} // add an empty <mi> so it's not embellished any more
var mml = MML.munderover(base,null,null); var mml = MML.munderover(base,null,null);
mml.data[mml[pos]] = mml.SetData(
this.mmlToken(MML.mo(MML.entity("#x"+c)).With({stretchy:true, accent:(pos == "under")})); mml[pos],
this.mmlToken(MML.mo(MML.entity("#x"+c)).With({stretchy:true, accent:(pos==="under")}))
);
if (stack) {mml = MML.TeXAtom(mml).With({texClass:MML.TEXCLASS.OP, movesupsub:true})} if (stack) {mml = MML.TeXAtom(mml).With({texClass:MML.TEXCLASS.OP, movesupsub:true})}
this.Push(mml); this.Push(mml.With({subsupOK:true}));
}, },
Overset: function (name) { Overset: function (name) {