Add first stage of a new single-file parser

This first stage consists of the general framework for the parser as
a whole, a lexical analyzers to converts text into commands, and the
semantic anlyzer to convert commands into a complete data structure
representing the cumulative effect of running the commands.

src/client/models/parsing-2/parser_extensions/recipe_pe_v1.coffee

@@ -0,0 +1,96 @@
+#
+# Crafting Guide - recipe_pe_v1.coffee
+#
+# Copyright © 2014-2016 by Redwood Labs
+# All rights reserved.
+#
+
+ParserExtension = require '../parser_extension'
+
+########################################################################################################################
+
+module.exports = class RecipeParserExtensionV1 extends ParserExtension
+
+    @::PATTERN = /[0-9. ]+/
+
+    @::STACK = /^([0-9]+) +(.+)$/
+
+    # Error Checking Helpers #######################################################################
+
+    invalidPattern: (command)->
+        match = command.argText.match @PATTERN
+        if not match?
+            @state.addError command, "invalid pattern: \"#{command.argText}\""
+            return true
+
+        return false
+
+    # Command Methods ##############################################################################
+
+    _command_extras: (command)->
+        return if @missingCurrent command, 'recipe'
+        return if @missingArgs command
+
+        recipe = @state.getCurrent 'recipe'
+        return if @duplicateField command, 'extras', recipe
+
+        recipe.extras = command.args
+
+    _command_input: (command)->
+        return if @missingCurrent command, 'recipe'
+        return if @missingArgs command
+
+        recipe = @state.getCurrent 'recipe'
+        return if @duplicateField command, 'input', recipe
+
+        recipe.input = (@_parseStack(arg) for arg in command.args)
+
+    _command_pattern: (command)->
+        return if @missingCurrent command, 'recipe'
+        return if @missingArgText command
+        return if @invalidPattern command
+
+        recipe = @state.getCurrent 'recipe'
+        return if @duplicateField command, 'pattern', recipe
+
+        recipe.pattern = command.argText
+
+    _command_recipe: (command)->
+        return if @missingCurrent command, 'item'
+
+        recipe = @state.create command, 'recipe'
+        recipe.item = @state.getCurrent 'item'
+
+    _command_quantity: (command)->
+        return if @missingCurrent command, 'recipe'
+        return if @missingArgText command
+
+        value = @parseInt command, command.argText
+        return unless value?
+
+        recipe = @state.getCurrent 'recipe'
+        return if @duplicateField command, 'quantity', recipe
+
+        recipe.quantity = value
+
+    _command_tools: (command)->
+        return if @missingCurrent command, 'recipe'
+        return if @missingArgs command
+
+        recipe = @state.getCurrent 'recipe'
+        return if @duplicateField command, 'tools', recipe
+
+        recipe.tools = (@_parseStack(arg) for arg in command.args)
+
+    # Custom Parsers ###############################################################################
+
+    _parseStack: (text)->
+        match = text.match @STACK
+        return name:text, quantity:1 unless match?
+
+        quantity = parseFloat match[1]
+        if isNaN quantity then quantity = 1
+
+        name = match[2]
+
+        return name:name, quantity:quantity