9e909d5be3
Update Bundler to 1.0.15. Update Rails to 2.3.12. Update rails_xss plugin. The latter two were the source of a considerable amount of grief, as rails_xss is now MUCH stricter about what string methods can be used. Also made it possible to use rake 0.9.x with Instiki. But you probably REALLY want to use ruby bundle exec rake ... instead of just saying rake ....
87 lines
2.2 KiB
Ruby
87 lines
2.2 KiB
Ruby
#require 'uri/common'
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# A chunk is a pattern of text that can be protected
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# and interrogated by a renderer. Each Chunk class has a
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# +pattern+ that states what sort of text it matches.
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# Chunks are initalized by passing in the result of a
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# match by its pattern.
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module Chunk
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class Abstract
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# Rails's default utf-8 support causes problems here. So, for Chunk::Abstract class, turn off
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# multibyte character support.
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$KCODE = 'n' unless ''.respond_to?(:force_encoding)
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# automatically construct the array of derivatives of Chunk::Abstract
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@derivatives = []
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class << self
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attr_reader :derivatives
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end
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def self::inherited( klass )
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Abstract::derivatives << klass
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end
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# the class name part of the mask strings
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def self.mask_string
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self.to_s.delete(':').downcase
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end
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# a regexp that matches all chunk_types masks
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def Abstract::mask_re(chunk_types)
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chunk_classes = chunk_types.map{|klass| klass.mask_string}.join("|")
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/chunk(-?\d+)(#{chunk_classes})chunk/
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end
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attr_reader :text, :unmask_text, :unmask_mode
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def initialize(match_data, content)
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@text = match_data[0]
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@content = content
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@unmask_mode = :normal
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end
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# Find all the chunks of the given type in content
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# Each time the pattern is matched, create a new
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# chunk for it, and replace the occurance of the chunk
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# in this content with its mask.
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def self.apply_to(content)
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text = content.to_str
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text.gsub!( self.pattern ) do |match|
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# content.replace text
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new_chunk = self.new($~, content)
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content.add_chunk(new_chunk)
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new_chunk.mask
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end
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content.replace text
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end
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# should contain only [a-z0-9]
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def mask
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@mask ||= "chunk#{self.object_id}#{self.class.mask_string}chunk"
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end
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def unmask
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@content.replace @content.sub(mask){|s| s.replace @unmask_text}
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end
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def rendered?
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@unmask_mode == :normal
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end
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def escaped?
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@unmask_mode == :escape
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end
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def revert
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@content.replace @content.sub(mask){|s| s.replace @text}
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# unregister
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@content.delete_chunk(self)
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end
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end
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end
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