40 lines
1.3 KiB
Ruby
40 lines
1.3 KiB
Ruby
require 'chunks/chunk'
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# These are basic chunks that have a pattern and can be protected.
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# They are used by rendering process to prevent wiki rendering
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# occuring within literal areas such as <code> and <pre> blocks
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# and within HTML tags.
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module Literal
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class AbstractLiteral < Chunk::Abstract
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def initialize(match_data, content)
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super
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@unmask_text = @text
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end
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end
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# A literal chunk that protects 'code' and 'pre' tags from wiki rendering.
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class Pre < AbstractLiteral
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PRE_BLOCKS = "a|pre|code|math"
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PRE_PATTERN = Regexp.new('<('+PRE_BLOCKS+')\b[^>]*?>.*?</\1>', Regexp::MULTILINE)
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def self.pattern() PRE_PATTERN end
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end
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# A literal chunk that protects HTML tags from wiki rendering.
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class Tags < AbstractLiteral
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TAGS_PATTERN = Regexp.new('</?[-a-zA-Z:]+\b[^>]*?>', Regexp::MULTILINE)
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def self.pattern() TAGS_PATTERN end
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end
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# A literal chunk that protects equations from wiki rendering.
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class Math < AbstractLiteral
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MATH_START = "(?:\\\\\\[|\\${1,2}|\\\\begin\\{equation\\})"
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MATH_END = "(?:\\\\\\]|\\${1,2}|\\\\end\\{equation\\})"
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MATH_PATTERN = Regexp.new( '(' + MATH_START + "(?:\\\\\\$|(?!\\$|\\\\\\]|\\\\end\\{equation\\}).)+?" + MATH_END + ')', Regexp::MULTILINE)
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def self.pattern() MATH_PATTERN end
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end
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end
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