Allow passing options to |PEG.buildParser|

These get passed down to the emitter templates.

src/compiler.js

@@ -17,14 +17,14 @@ PEG.compiler = {
    * during the generation and some may protrude to the generated parser and
    * cause its malfunction.
    */
-  compile: function(ast) {
+  compile: function(ast, options) {
     var that = this;
 
     each(this.appliedPassNames, function(passName) {
       that.passes[passName](ast);
     });
 
-    var source = this.emitter(ast);
+    var source = this.emitter(ast, options);
     var result = eval(source);
     result._source = source;
 

src/emitter.js

@@ -1,5 +1,7 @@
 /* Emits the generated code for the AST. */
-PEG.compiler.emitter = function(ast) {
+PEG.compiler.emitter = function(ast, options) {
+  options = options || {};
+
   var Codie = (function(undefined) {
     function stringEscape(s) {
       function hex(ch) { return ch.charCodeAt(0).toString(16).toUpperCase(); }
@@ -674,11 +676,12 @@ PEG.compiler.emitter = function(ast) {
   })();
 
   function fill(name, vars) {
-    vars.string = quote;
+    vars.string  = quote;
-    vars.pluck  = pluck;
+    vars.pluck   = pluck;
-    vars.keys   = keys;
+    vars.keys    = keys;
-    vars.values = values;
+    vars.values  = values;
-    vars.emit   = emit;
+    vars.emit    = emit;
+    vars.options = options;
 
     return templates[name](vars);
   }

src/peg.js

@@ -17,8 +17,8 @@ var PEG = {
    * errors are detected during the generation and some may protrude to the
    * generated parser and cause its malfunction.
    */
-  buildParser: function(grammar) {
+  buildParser: function(grammar, options) {
-    return PEG.compiler.compile(PEG.parser.parse(grammar));
+    return PEG.compiler.compile(PEG.parser.parse(grammar), options);
   }
 };