Parse comments. Fixes #8

hat-tip to @piranna for suggesting parsing comments before new lines

Author: grncdr

grammar.pegjs

@@ -62,7 +62,7 @@ argument "command argument"
  = commandName
  / processSubstitution
 
-concatenation
+concatenation "concatenation of strings and/or variables"
  = pieces:( glob
           / bareword
           / environmentVariable
@@ -72,8 +72,8 @@ concatenation
           / doubleQuote
           )+
 
-bareword
- = cs:barewordChar+
+bareword "bareword"
+ = !'#' cs:barewordChar+
 
 barewordChar
  = '\\' chr:barewordMeta { return chr }
@@ -157,8 +157,9 @@ pipe =
 space
  = " " / "\t"
 
-spaceNL
- = space / "\n"
+spaceNL = space / "\n" / comment
+
+comment = '#' [^\n]* ("\n" / EOF)
 
 keyword
  = ( "while"

package.json

@@ -4,8 +4,9 @@
   "description": "Parse bash scripts into AST's",
   "main": "parser.js",
   "dependencies": {
+    "array-map": "0.0.0",
     "isarray": "0.0.1",
-    "array-map": "0.0.0"
+    "parsimmon": "^0.7.0"
   },
   "scripts": {
     "test": "tape tests/*.js",
@@ -34,8 +35,8 @@
     }
   },
   "devDependencies": {
-    "pegjs": "~0.8.0",
-    "pegjs-override-action": "0.0.7",
+    "pegjs": "~0.9.0",
+    "pegjs-override-action": "0.2.3",
     "tape": "^4.5.1",
     "markdown-code-blocks": "0.0.1",
     "xtend": "~2.1.1"