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authorJohn MacFarlane <jgm@berkeley.edu>2015-01-09 15:36:53 -0800
committerJohn MacFarlane <jgm@berkeley.edu>2015-01-09 15:36:53 -0800
commit4d49f2befc95241abf8f5d7ef07ffd1ef4c23bfb (patch)
tree42233578f11949646cdd242f561266167f7fc4b0 /js/lib/html.js
parentbdf6f4fe614e1065b74622e7f359d998be5e491e (diff)
Rewrote HTML escaping for big performance gain.
Diffstat (limited to 'js/lib/html.js')
-rw-r--r--js/lib/html.js24
1 files changed, 16 insertions, 8 deletions
diff --git a/js/lib/html.js b/js/lib/html.js
index 3c1ed4c..1f1b0ba 100644
--- a/js/lib/html.js
+++ b/js/lib/html.js
@@ -213,6 +213,20 @@ var renderNodes = function(block) {
return buffer.join('');
};
+var sub = function(s) {
+ if (s === '&') {
+ return '&amp;';
+ } else if (s === '<') {
+ return '&lt;';
+ } else if (s === '>') {
+ return '&gt;';
+ } else if (s === '"') {
+ return '&quot;';
+ } else {
+ return s;
+ }
+};
+
// The HtmlRenderer object.
function HtmlRenderer(){
@@ -225,15 +239,9 @@ function HtmlRenderer(){
// set to " " if you want to ignore line wrapping in source
escape: function(s, preserve_entities) {
if (preserve_entities) {
- return s.replace(/[&](?![#](x[a-f0-9]{1,8}|[0-9]{1,8});|[a-z][a-z0-9]{1,31};)/gi, '&amp;')
- .replace(/[<]/g, '&lt;')
- .replace(/[>]/g, '&gt;')
- .replace(/["]/g, '&quot;');
+ return s.replace(/[&](?:[#](x[a-f0-9]{1,8}|[0-9]{1,8});|[a-z][a-z0-9]{1,31};)|[&<>"]/gi, sub);
} else {
- return s.replace(/[&]/g, '&amp;')
- .replace(/[<]/g, '&lt;')
- .replace(/[>]/g, '&gt;')
- .replace(/["]/g, '&quot;');
+ return s.replace(/[&<>"]/g, sub);
}
},
render: renderNodes