Make \\left...\\right be of TeX class INNER. Resolves issue mathjax#746.

dpvc · Feb 20, 2014 · f6bc6fa · f6bc6fa
1 parent 9bed669
commit f6bc6fa
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Showing 2 changed files with 23 additions and 6 deletions.
diff --git a/unpacked/jax/element/mml/jax.js b/unpacked/jax/element/mml/jax.js
@@ -751,10 +751,27 @@ MathJax.ElementJax.mml.Augment({
       return this.SUPER(arguments).toString.call(this);
     },
     setTeXclass: function (prev) {
-      for (var i = 0, m = this.data.length; i < m; i++)
+      var i, m = this.data.length;
-        {if (this.data[i]) {prev = this.data[i].setTeXclass(prev)}}
+      if (this.open || this.close) {
-      if (this.data[0]) {this.updateTeXclass(this.data[0])}
+        //
-      return prev;
+        // <mrow> came from \left...\right
+        // so treat as subexpression (tex class INNER)
+        //
+        this.getPrevClass(prev);
+        for (i = 0; i < m; i++)
+          {if (this.data[i]) {prev = this.data[i].setTeXclass(prev)}}
+        this.texClass = MML.TEXCLASS.INNER;
+        return this;
+      } else {
+        //
+        //  Normal <mrow>, so treat as
+        //  thorugh mrow is not there
+        //
+        for (i = 0; i < m; i++)
+          {if (this.data[i]) {prev = this.data[i].setTeXclass(prev)}}
+        if (this.data[0]) {this.updateTeXclass(this.data[0])}
+        return prev;
+      }
     },
     getAnnotation: function (name) {
       if (this.data.length != 1) return null;
@@ -947,6 +964,7 @@ MathJax.ElementJax.mml.Augment({
       }
       // get the data from the open item
       this.updateTeXclass(this.data.open);
+      this.texClass = MML.TEXCLASS.INNER;
       return prev;
     }
   });

diff --git a/unpacked/jax/input/TeX/jax.js b/unpacked/jax/input/TeX/jax.js
@@ -2130,8 +2130,7 @@
      *  Create an mrow that has stretchy delimiters at either end, as needed
      */
     fenced: function (open,mml,close) {
-      var mrow = MML.mrow();
+      var mrow = MML.mrow().With({open:open, close:close, texClass:MML.TEXCLASS.INNER});
-      mrow.open = open; mrow.close = close;
       if (open) {mrow.Append(MML.mo(open).With({fence:true, stretchy:true, texClass:MML.TEXCLASS.OPEN}))}
       if (mml.type === "mrow") {mrow.Append.apply(mrow,mml.data)} else {mrow.Append(mml)}
       if (close) {mrow.Append(MML.mo(close).With({fence:true, stretchy:true, texClass:MML.TEXCLASS.CLOSE}))}