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Make \def, \let, and \newcommand handle '\ ' properly. Make \let set a control sequence to an undefined control sequence. Resolves issues #1563 and #1564.

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This commit is contained in:
Davide P. Cervone 2016-07-21 15:37:14 -04:00
parent fc91998d79
commit 0037d6b6df
1 changed files with 10 additions and 7 deletions
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17
unpacked/extensions/TeX/newcommand.js
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@ -51,11 +51,12 @@ MathJax.Hub.Register.StartupHook("TeX Jax Ready",function () {
* Implement \newcommand{\name}[n][default]{...}
*/
NewCommand: function (name) {
var cs = this.trimSpaces(this.GetArgument(name)),
var CS = this.GetArgument(name), cs = this.trimSpaces(CS),
n = this.GetBrackets(name),
opt = this.GetBrackets(name),
def = this.GetArgument(name);
if (cs.charAt(0) === "\\") {cs = cs.substr(1)}
if (cs === "" && CS.substr(CS.length-1,1) === " ") {cs += " "}
if (!cs.match(/^(.|[a-z]+)$/i)) {
TEX.Error(["IllegalControlSequenceName",
"Illegal control sequence name for %1",name]);
@ -120,10 +121,11 @@ MathJax.Hub.Register.StartupHook("TeX Jax Ready",function () {
name = this.GetCSname(name);
macro = this.csFindMacro(name);
if (!macro) {
if (TEXDEF.mathchar0mi[name]) {macro = ["csMathchar0mi",TEXDEF.mathchar0mi[name]]} else
if (TEXDEF.mathchar0mo[name]) {macro = ["csMathchar0mo",TEXDEF.mathchar0mo[name]]} else
if (TEXDEF.mathchar7[name]) {macro = ["csMathchar7",TEXDEF.mathchar7[name]]} else
if (TEXDEF.delimiter["\\"+name] != null) {macro = ["csDelimiter",TEXDEF.delimiter["\\"+name]]}
if (TEXDEF.mathchar0mi[name]) {macro = ["csMathchar0mi",TEXDEF.mathchar0mi[name]]} else
if (TEXDEF.mathchar0mo[name]) {macro = ["csMathchar0mo",TEXDEF.mathchar0mo[name]]} else
if (TEXDEF.mathchar7[name]) {macro = ["csMathchar7",TEXDEF.mathchar7[name]]} else
if (TEXDEF.delimiter["\\"+name] != null) {macro = ["csDelimiter",TEXDEF.delimiter["\\"+name]]} else
return;
}
} else {macro = ["Macro",c]; this.i++}
this.setDef(cs,macro);
@ -145,8 +147,9 @@ MathJax.Hub.Register.StartupHook("TeX Jax Ready",function () {
TEX.Error(["MissingCS",
"%1 must be followed by a control sequence", cmd])
}
var cs = this.trimSpaces(this.GetArgument(cmd));
return cs.substr(1);
var cs = this.GetArgument(cmd), CS = this.trimSpaces(cs);
if (CS == "\\" && cs.substr(cs.length-1,1) === " ") {CS += " "}
return CS.substr(1);
},
/*