class CodeRay::TokensProxy

The result of a scan operation is a TokensProxy, but should act like Tokens.

This proxy makes it possible to use the classic CodeRay.scan.encode API while still providing the benefits of direct streaming.

Attributes

block[RW]

input[RW]

lang[RW]

options[RW]

Public Class Methods

new(input, lang, options = {}) click to toggle source

Create a new TokensProxy with the arguments of CodeRay.scan.

# File lib/coderay/tokens_proxy.rb, line 12
def initialize input, lang, options = {}, block = nil
  @input   = input
  @lang    = lang
  @options = options
  @block   = block
end

Public Instance Methods

each(*args, &blk) click to toggle source

Overwrite Struct#each.

# File lib/coderay/tokens_proxy.rb, line 48
def each *args, &blk
  tokens.each(*args, &blk)
  self
end

encode(encoder, options = {}) click to toggle source

Call CodeRay.encode if encoder is a Symbol; otherwise, convert the receiver to tokens and call encoder.encode_tokens.

# File lib/coderay/tokens_proxy.rb, line 21
def encode encoder, options = {}
  if encoder.respond_to? :to_sym
    CodeRay.encode(input, lang, encoder, options)
  else
    encoder.encode_tokens tokens, options
  end
end

method_missing(method, *args, &blk) click to toggle source

Tries to call encode; delegates to tokens otherwise.

# File lib/coderay/tokens_proxy.rb, line 31
def method_missing method, *args, &blk
  encode method.to_sym, *args
rescue PluginHost::PluginNotFound
  tokens.send(method, *args, &blk)
end

scanner() click to toggle source

A (cached) scanner instance to use for the scan task.

# File lib/coderay/tokens_proxy.rb, line 43
def scanner
  @scanner ||= CodeRay.scanner(lang, options, &block)
end

tokens() click to toggle source

The (cached) result of the tokenized input; a Tokens instance.

# File lib/coderay/tokens_proxy.rb, line 38
def tokens
  @tokens ||= scanner.tokenize(input)
end