completely reorganized for a gem and the 'coffee-script' command

LICENSE

@@ -0,0 +1,22 @@
+Copyright (c) 2009 Jeremy Ashkenas
+
+Permission is hereby granted, free of charge, to any person
+obtaining a copy of this software and associated documentation
+files (the "Software"), to deal in the Software without
+restriction, including without limitation the rights to use,
+copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the
+Software is furnished to do so, subject to the following
+conditions:
+
+The above copyright notice and this permission notice shall be
+included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
+OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
+HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+OTHER DEALINGS IN THE SOFTWARE.

Rakefile

@@ -0,0 +1,15 @@
+desc "Recompile the Racc parser (pass -v and -g for verbose debugging)"
+task :build, :extra_args do |t, args|
+  sh "racc #{args[:extra_args]} -o lib/coffee_script/parser.rb lib/coffee_script/grammar.y"
+end
+
+
+# # Pipe compiled JS through JSLint.
+# puts "\n\n"
+# require 'open3'
+# stdin, stdout, stderr = Open3.popen3('jsl -nologo -stdin')
+# stdin.write(js)
+# stdin.close
+# puts stdout.read
+# stdout.close
+# stderr.close

TODO

@@ -1,6 +1,9 @@
+TODO:
+
 * Is it possible to close blocks (functions, ifs, trys) without an explicit
   block delimiter or significant whitespace?
   
 * Is it possible to pass comments through cleanly and have them show up on
   the other end? This includes comments in the middle of array and object
-  literals, and argument lists.
+  literals, and argument lists.
+  

bin/coffee-script

@@ -0,0 +1,5 @@
+#!/usr/bin/env ruby
+
+require "#{File.dirname(__FILE__)}/../lib/coffee_script/command_line.rb"
+
+CoffeeScript::CommandLine.new

examples/code.cs

@@ -1,5 +1,3 @@
-# TODO: Add range indexing: array[5..7] => array.slice(5, 7)
-
 # Functions:
 square: x => x * x.
 

lib/coffee-script.rb

@@ -0,0 +1,16 @@
+$LOAD_PATH.unshift(File.dirname(__FILE__))
+require "coffee_script/lexer"
+require "coffee_script/parser"
+require "coffee_script/nodes"
+
+# Namespace for all CoffeeScript internal classes.
+module CoffeeScript
+
+  VERSION = '0.1.0'
+
+  def self.compile(script)
+    script = script.read if script.respond_to?(:read)
+    Parser.new.parse(script).compile
+  end
+
+end

lib/coffee_script/command_line.rb

@@ -0,0 +1,99 @@
+require 'optparse'
+require 'fileutils'
+require 'open3'
+require File.expand_path(File.dirname(__FILE__) + '/../coffee-script')
+
+module CoffeeScript
+
+  class CommandLine
+
+    BANNER = <<-EOS
+coffee-script compiles CoffeeScript files into JavaScript.
+
+Usage:
+  coffee-script path/to/script.cs
+    EOS
+
+    def initialize
+      parse_options
+      check_sources
+      compile_javascript
+    end
+
+    def usage
+      puts "\n#{@option_parser}\n"
+      exit
+    end
+
+
+    private
+
+    def compile_javascript
+      @sources.each do |source|
+        contents = CoffeeScript.compile(File.open(source))
+        next puts(contents) if @options[:print]
+        next lint(contents) if @options[:lint]
+        File.open(path_for(source), 'w+') {|f| f.write(contents) }
+      end
+    end
+
+    def check_sources
+      usage if @sources.empty?
+      missing = @sources.detect {|s| !File.exists?(s) }
+      if missing
+        STDERR.puts("File not found: '#{missing}'")
+        exit(1)
+      end
+    end
+
+    # Pipe compiled JS through JSLint.
+    def lint(js)
+      stdin, stdout, stderr = Open3.popen3('jsl -nologo -stdin')
+      stdin.write(js)
+      stdin.close
+      print stdout.read
+      stdout.close and stderr.close
+    end
+
+    # Write out JavaScript alongside CoffeeScript unless an output directory
+    # is specified.
+    def path_for(source)
+      filename = File.basename(source, File.extname(source)) + '.js'
+      dir      = @options[:output] || File.dirname(source)
+      File.join(dir, filename)
+    end
+
+    def parse_options
+      @options = {}
+      @option_parser = OptionParser.new do |opts|
+        opts.on('-o', '--output [DIR]', 'set the directory for compiled javascript') do |d|
+          @options[:output] = d
+          FileUtils.mkdir_p(d) unless File.exists?(d)
+        end
+        opts.on('-p', '--print', 'print the compiled javascript to stdout') do |d|
+          @options[:print] = true
+        end
+        opts.on('-l', '--lint', 'pipe the compiled javascript through JSLint') do |l|
+          @options[:lint] = true
+        end
+        opts.on_tail('-v', '--version', 'display coffee-script version') do
+          puts "coffee-script version #{CoffeeScript::VERSION}"
+          exit
+        end
+        opts.on_tail('-h', '--help', 'display this help message') do
+          usage
+        end
+      end
+      @option_parser.banner = BANNER
+      begin
+        @option_parser.parse!(ARGV)
+      rescue OptionParser::InvalidOption => e
+        puts e.message
+        exit(1)
+      end
+      @sources = ARGV
+    end
+
+  end
+
+end

lib/coffee_script/grammar.y

@@ -281,10 +281,6 @@ rule
 
 end
 
----- header
-  require "lexer"
-  require "nodes"
-
 ---- inner
   def parse(code, show_tokens=false)
     # @yydebug = true