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Contents
# Author:: Nicolas Pouillard <ertai@lrde.epita.fr>.
# Copyright:: Copyright (c) 2005 Uttk Team. All rights reserved.
# License:: LGPL
# Revision:: $Id: /w/fey/uttk/trunk/lib/uttk/filters/TextFilter.rb 21844 2006-02-17T17:26:59.771162Z pouillar $
module Uttk
module Filters
class TextFilter < KeepSkipBased
include Concrete
default_options.merge! :action => nil # No default action
# FIXME can be path based
# This filter use the Text manipulation class of RubyEx.
# You can apply transformation over leaves content.
#
# This filter takes two arguments:
# - observers: An observer list like any filter
# - options:
# keep: A regular expression (all keys which match this regexp are transformed)
# skip: Antoher regexp that skip keys which match
# action: What transformation apply (e.g. justify), see the _Text_ class for
# more informations
# width: Maximal width of a line
#
# Examples:
# Yaml syntax: 'TextFilter: [!keep "^(in|out)put$", !action justify, Yaml]'
#
def initialize ( observers, options, &b )
super
@text_factory = MetaFactory.new(Text, @options)
@filter_next_leaf = false
end
def new_node ( path, node )
@filter_next_leaf = keep? node.segment
super
end
protected :new_node
def new_leaf ( path, node )
super(path, (@filter_next_leaf)? node_filter(node) : node)
end
protected :new_leaf
def up ( path )
@filter_next_leaf = false
super
end
protected :up
def node_filter ( anObject )
return anObject unless anObject.is_a? String
o = @text_factory.create([anObject])
eval("o.#@action").text
end
protected :node_filter
end # class TextFilter
end # module Filters
end # module Uttk
Version data entries
6 entries across 6 versions & 1 rubygems