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commit 08ec41cd86c48ab3616cbdfd2f709e8d78dc48ff
parent cd0b88e524037a7bb539eda0330d2c21514b55f1
Author: Davide P. Cervone <dpvc@union.edu>
Date:   Mon, 28 Oct 2013 18:45:21 -0400

More checks to make sure nesting level doesn't go below zero.  Issue #523.

Diffstat:
M
unpacked/jax/output/HTML-CSS/autoload/multiline.js
 | 
17
+++++++++++++----
M
unpacked/jax/output/SVG/autoload/multiline.js
 | 
18
++++++++++++++----

2 files changed, 27 insertions(+), 8 deletions(-)
diff --git a/unpacked/jax/output/HTML-CSS/autoload/multiline.js b/unpacked/jax/output/HTML-CSS/autoload/multiline.js
@@ -160,13 +160,18 @@ MathJax.Hub.Register.StartupHook("HTML-CSS Jax Ready",function () {
         if (this.data[i]) {
           if (this.data[i].HTMLbetterBreak(info,state)) {
             better = true; index = [i].concat(info.index); W = info.W; w = info.w;
-            if (info.penalty === PENALTY.newline) {info.index = index; info.nest--; return true}
+            if (info.penalty === PENALTY.newline) {
+              info.index = index;
+              if (info.nest) {info.nest--}
+              return true;
+            }
           }
           scanW = (broken ? info.scanW : this.HTMLaddWidth(i,info,scanW));
         }
         info.index = []; i++; broken = false;
       }
-      info.nest--; info.index = index;
+      if (info.nest) {info.nest--}
+      info.index = index;
       if (better) {info.W = W; info.w = w}
       return better;
     },
@@ -407,13 +412,17 @@ MathJax.Hub.Register.StartupHook("HTML-CSS Jax Ready",function () {
         if (this.data[k]) {
           if (this.data[k].HTMLbetterBreak(info,state)) {
             better = true; index = [i].concat(info.index); W = info.W; w = info.w;
-            if (info.penalty === PENALTY.newline) {info.index = index; info.nest--; return true}
+            if (info.penalty === PENALTY.newline) {
+              info.index = index;
+              if (info.nest) {info.nest--}
+              return true}
           }
           scanW = (broken ? info.scanW : this.HTMLaddWidth(i,info,scanW));
         }
         info.index = []; i++; broken = false;
       }
-      info.nest--; info.index = index;
+      if (info.nest) {info.nest--}
+      info.index = index;
       if (better) {info.W = W; info.w = w}
       return better;
     },
diff --git a/unpacked/jax/output/SVG/autoload/multiline.js b/unpacked/jax/output/SVG/autoload/multiline.js
@@ -163,13 +163,18 @@ MathJax.Hub.Register.StartupHook("SVG Jax Ready",function () {
         if (this.data[i]) {
           if (this.data[i].SVGbetterBreak(info,state)) {
             better = true; index = [i].concat(info.index); W = info.W; w = info.w;
-            if (info.penalty === PENALTY.newline) {info.index = index; info.nest--; return true}
+            if (info.penalty === PENALTY.newline) {
+              info.index = index;
+              if (info.nest) {info.nest--}
+              return true;
+            }
           }
           scanW = (broken ? info.scanW : this.SVGaddWidth(i,info,scanW));
         }
         info.index = []; i++; broken = false;
       }
-      info.nest--; info.index = index;
+      if (info.nest) {info.nest--}
+      info.index = index;
       if (better) {info.W = W}
       return better;
     },
@@ -365,13 +370,18 @@ MathJax.Hub.Register.StartupHook("SVG Jax Ready",function () {
         if (this.data[k]) {
           if (this.data[k].SVGbetterBreak(info,state)) {
             better = true; index = [i].concat(info.index); W = info.W; w = info.w;
-            if (info.penalty === PENALTY.newline) {info.index = index; info.nest--; return true}
+            if (info.penalty === PENALTY.newline) {
+              info.index = index;
+              if (info.nest) {info.nest--}
+              return true;
+            }
           }
           scanW = (broken ? info.scanW : this.SVGaddWidth(i,info,scanW));
         }
         info.index = []; i++; broken = false;
       }
-      info.nest--; info.index = index;
+      if (info.nest) {info.nest--}
+      info.index = index;
       if (better) {info.W = W; info.w = w}
       return better;
     },