Added options to DocParser.

So far only 'time' is supported.
'time' now gives a breakdown of block parsing, inline parsing,
and rendering.

Currently the ratio is

block parsing: 725ms
inline parsing: 332ms
rendering: 213ms

so perhaps block.js is the best place to look for further optimizations.

3 files changed, 14 insertions, 11 deletions

diff --git a/js/bin/commonmark b/js/bin/commonmark
index 6c9955c..8f1210b 100755
--- a/js/bin/commonmark
+++ b/js/bin/commonmark
@@ -7,9 +7,8 @@ var commonmark = require('../lib/index.js');
 var inps = [];
 var file;
 var files = [];
-var options = { sourcepos: false };
+var options = { sourcepos: false, time: false };
 var format = 'html';
-var time = false;
 var i;
 
 for (i = 2; i < process.argv.length; i++) {
@@ -17,7 +16,7 @@ for (i = 2; i < process.argv.length; i++) {
     if (arg === '--ast') {
         format = 'ast';
     } else if (arg === '--time') {
-        time = true;
+        options.time = true;
     } else if (arg === '--sourcepos') {
         options.sourcepos = true;
     } else if (/^--/.test(arg)) {
@@ -28,7 +27,7 @@ for (i = 2; i < process.argv.length; i++) {
     }
 }
 
-var parser = new commonmark.DocParser();
+var parser = new commonmark.DocParser(options);
 var renderer;
 
 if (format === 'html') {
@@ -48,12 +47,8 @@ for (i = 0; i < files.length; i++) {
 }
 
 var inp = inps.join('\n');
-if (time) { console.time("parsing"); }
 var doc = parser.parse(inp);
-if (time) { console.timeEnd("parsing"); }
 
-if (time) { console.time("rendering"); }
 var rendered = renderer.render(doc);
-if (time) { console.timeEnd("rendering"); }
 
-if (!time) { process.stdout.write(rendered); }
\ No newline at end of file
+if (!options.time) { process.stdout.write(rendered); }
\ No newline at end of file
diff --git a/js/lib/blocks.js b/js/lib/blocks.js
index 05de246..c2d14d7 100644
--- a/js/lib/blocks.js
+++ b/js/lib/blocks.js
@@ -671,6 +671,7 @@ var Document = function() {
 // The main parsing function.  Returns a parsed document AST.
 var parse = function(input) {
     "use strict";
+    if (this.options.time) { console.time("block parsing"); }
     this.doc = Document();
     this.tip = this.doc;
     this.refmap = {};
@@ -686,13 +687,16 @@ var parse = function(input) {
     while (this.tip) {
         this.finalize(this.tip, len);
     }
+    if (this.options.time) { console.timeEnd("block parsing"); }
+    if (this.options.time) { console.time("inline parsing"); }
     this.processInlines(this.doc);
+    if (this.options.time) { console.timeEnd("inline parsing"); }
     return this.doc;
 };
 
 
 // The DocParser object.
-function DocParser(){
+function DocParser(options){
     "use strict";
     return {
         doc: Document(),
@@ -706,7 +710,8 @@ function DocParser(){
         incorporateLine: incorporateLine,
         finalize: finalize,
         processInlines: processInlines,
-        parse: parse
+        parse: parse,
+        options: options || {}
     };
 }
 
diff --git a/js/lib/html.js b/js/lib/html.js
index a985039..847ed98 100644
--- a/js/lib/html.js
+++ b/js/lib/html.js
@@ -50,6 +50,8 @@ var renderNodes = function(block) {
 
     var options = this.options;
 
+    if (options.time) { console.time("rendering"); }
+
     while ((event = walker.next())) {
         entering = event.entering;
         node = event.node;
@@ -225,6 +227,7 @@ var renderNodes = function(block) {
         }
 
     }
+    if (options.time) { console.timeEnd("rendering"); }
     return buffer;
 };