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- = polyglot
- * http://github.com/cjheath/polyglot
- == DESCRIPTION:
- Author: Clifford Heath, 2007
- The Polyglot library allows a Ruby module to register a loader
- for the file type associated with a filename extension, and it
- augments 'require' to find and load matching files.
- This supports the creation of DSLs having a syntax that is most
- appropriate to their purpose, instead of abusing the Ruby syntax.
- Files are sought using the normal Ruby search path.
- == EXAMPLE:
- In file rubyglot.rb, define and register a file type handler:
- require 'polyglot'
- class RubyglotLoader
- def self.load(filename, options = nil, &block)
- File.open(filename) {|file|
- # Load the contents of file as Ruby code:
- # Implement your parser here instead!
- Kernel.eval(file.read)
- }
- end
- end
- Polyglot.register("rgl", RubyglotLoader)
- In file test.rb:
- require 'rubyglot' # Create my file type handler
- require 'hello' # Can add extra options or even a block here
- puts "Ready to go"
- Hello.new
- In file hello.rgl (this simple example uses Ruby code):
- puts "Initializing"
- class Hello
- def initialize()
- puts "Hello, world\n"
- end
- end
- Run:
- $ ruby test.rb
- Initializing
- Ready to go
- Hello, world
- $
- == INSTALL:
- sudo gem install polyglot
- == LICENSE:
- (The MIT License)
- Copyright (c) 2007 Clifford Heath
- 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.
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