Add the "verify" script

In addition to the new script, this changes the V2 parser to be able
to continue past the first error found so that as many errors as
possible may be displayed.

src/scripts/models/mod_version_parser.coffee

@@ -15,10 +15,12 @@ module.exports = class ModVersionParser
 
     @CURRENT_VERSION = '2'
 
-    constructor: ->
+    constructor: (options={})->
+        options.showAllErrors ?= false
+
         @_parsers =
-            '1': new V1
-            '2': new V2
+            '1': new V1 options
+            '2': new V2 options
 
     parse: (data)->
         if not data? then throw new Error 'mod description data is missing'

src/scripts/models/mod_version_parsers/v2.coffee

@@ -15,6 +15,12 @@ StringBuilder = require '../string_builder'
 
 module.exports = class V2
 
+    constructor: (options={})->
+        options.showAllErrors ?= false
+        @showAllErrors = options.showAllErrors
+
+    # Class Methods ################################################################################
+
     @COMMAND = /\ *([^:]*):?(.*)/
 
     @COMMENT = /([^\\]?)#.*/
@@ -25,6 +31,8 @@ module.exports = class V2
 
     @STACK = /^([0-9]+) +(.*)$/
 
+    # Public Methods ###############################################################################
+
     parse: (text)->
         @_modVersionData = {}
         @_lineNumber     = 1
@@ -36,7 +44,8 @@ module.exports = class V2
             for command in commands
                 @_execute command
 
-        return @_buildModVersion @_modVersionData
+        modVersion = @_handleErrors @_buildModVersion, @_modVersionData
+        return modVersion
 
     unparse: (modVersion)->
         builder = new StringBuilder context:modVersion
@@ -48,11 +57,8 @@ module.exports = class V2
     _execute: (command)->
         method = this["_command_#{command.name}"]
         if not method? then throw new Error "Unknown command: #{command.name}"
-        try
-            method.apply this, command.args
-        catch e
-            e.message = "line #{@_lineNumber}: #{e.message}"
-            throw e
+
+        @_handleErrors method, command.args
 
     _parseLine: (line)->
         line = line.replace V2.COMMENT, '$1'
@@ -73,6 +79,17 @@ module.exports = class V2
 
         return commands
 
+    _handleErrors: (callback, args...)->
+        if args.length is 1 and _.isArray(args[0]) then args = args[0]
+
+        try
+            callback.apply this, args
+        catch e
+            e.message = "line #{@_lineNumber}: #{e.message}"
+            if not @showAllErrors then throw e
+            console.error e.message
+
+
     # Command Methods ##############################################################################
 
     _command_description: (descriptionParts...)->
@@ -178,7 +195,7 @@ module.exports = class V2
         modVersion = new ModVersion attributes
 
         for itemData in modVersionData.items
-            @_buildItem modVersion, itemData
+            @_handleErrors @_buildItem, modVersion, itemData
 
         return modVersion
 
@@ -190,7 +207,7 @@ module.exports = class V2
         item = new Item modVersion:modVersion, name:itemData.name, isGatherable:itemData.gatherable
 
         for recipeData in itemData.recipes
-            @_buildRecipe modVersion, item, recipeData
+            @_handleErrors @_buildRecipe, modVersion, item, recipeData
 
         return item