suzanne.soy/scribble-mathjax
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

Make \newenvironment perform the end substitution BEFORE testing if \end matches the corresponding \begin. This allows \newcommand to use \begin and \end in the substititions. Resolves issue #793.

Browse Source
This commit is contained in:
Davide P. Cervone 2014-04-20 14:45:54 -04:00
parent 1e8ae72201
commit 25bab8f05c
2 changed files with 30 additions and 25 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

12
unpacked/extensions/TeX/newcommand.js
View File

@ -85,7 +85,7 @@ MathJax.Hub.Register.StartupHook("TeX Jax Ready",function () {
"Illegal number of parameters specified in %1",name]);
}
}
this.setEnv(env,['BeginEnv','EndEnv',bdef,edef,n]);
this.setEnv(env,['BeginEnv',[null,'EndEnv'],bdef,edef,n]);
},
/*
@ -208,15 +208,15 @@ MathJax.Hub.Register.StartupHook("TeX Jax Ready",function () {
var args = [];
for (var i = 0; i < n; i++) {args.push(this.GetArgument("\\begin{"+name+"}"))}
bdef = this.SubstituteArgs(args,bdef);
edef = this.SubstituteArgs(args,edef);
edef = this.SubstituteArgs([],edef); // no args, but get errors for #n in edef
}
begin.edef = edef;
this.string = this.AddArgs(bdef,this.string.slice(this.i)); this.i = 0;
return begin;
},
EndEnv: function (begin,row) {
this.string = this.AddArgs(begin.edef,this.string.slice(this.i)); this.i = 0
return row;
EndEnv: function (begin,bdef,edef,n) {
var end = "\\end{\\end\\"+begin.name+"}"; // special version of \end for after edef
this.string = this.AddArgs(edef,end+this.string.slice(this.i)); this.i = 0;
return null;
},
/*

43
unpacked/jax/input/TeX/jax.js
View File

@ -44,7 +44,7 @@
Push: function () {
var i, m, item, top;
for (i = 0, m = arguments.length; i < m; i++) {
item = arguments[i];
item = arguments[i]; if (!item) continue;
if (item instanceof MML.mbase) {item = STACKITEM.mml(item)}
item.global = this.global;
top = (this.data.length ? this.Top().checkItem(item) : true);
@ -951,8 +951,8 @@
// LaTeX
begin: 'Begin',
end: 'End',
begin: 'BeginEnd',
end: 'BeginEnd',
newcommand: ['Extension','newcommand'],
renewcommand: ['Extension','newcommand'],
@ -1713,26 +1713,31 @@
* LaTeX environments
*/
Begin: function (name) {
var env = this.GetArgument(name);
if (env.match(/[^a-z*]/i))
{TEX.Error(["InvalidEnv","Invalid environment name '%1'",env])}
BeginEnd: function (name) {
var env = this.GetArgument(name), isEnd = false;
if (env.match(/^\\end\\/)) {isEnd = true; env = env.substr(5)} // special \end{} for \newenvironment environments
if (env.match(/\\/i)) {TEX.Error(["InvalidEnv","Invalid environment name '%1'",env])}
var cmd = this.envFindName(env);
if (!cmd)
{TEX.Error(["UnknownEnv","Unknown environment '%1'",env])}
if (++this.macroCount > TEX.config.MAXMACROS) {
TEX.Error(["MaxMacroSub2",
"MathJax maximum substitution count exceeded; " +
"is there a recursive latex environment?"]);
}
if (!cmd) {TEX.Error(["UnknownEnv","Unknown environment '%1'",env])}
if (!(cmd instanceof Array)) {cmd = [cmd]}
var mml = STACKITEM.begin().With({name: env, end: cmd[1], parse:this});
if (cmd[0] && this[cmd[0]]) {mml = this[cmd[0]].apply(this,[mml].concat(cmd.slice(2)))}
var end = (cmd[1] instanceof Array ? cmd[1][0] : cmd[1]);
mml = STACKITEM.begin().With({name: env, end: end, parse:this});
if (name === "\\end") {
if (!isEnd && cmd[1] instanceof Array && this[cmd[1][1]]) {
mml = this[cmd[1][1]].apply(this,[mml].concat(cmd.slice(2)));
} else {
mml = STACKITEM.end().With({name: env});
}
} else {
if (++this.macroCount > TEX.config.MAXMACROS) {
TEX.Error(["MaxMacroSub2",
"MathJax maximum substitution count exceeded; " +
"is there a recursive latex environment?"]);
}
if (cmd[0] && this[cmd[0]]) {mml = this[cmd[0]].apply(this,[mml].concat(cmd.slice(2)))}
}
this.Push(mml);
},
End: function (name) {
this.Push(STACKITEM.end().With({name: this.GetArgument(name)}));
},
envFindName: function (name) {return TEXDEF.environment[name]},
Equation: function (begin,row) {return row},