instiki/lib/chunks/literal.rb
Jacques Distler 074711d4c5 Hide Equations From WikiChunk Processing
WikiWord (and the like) could wreak havoc in equations. Protect them
(the way <a>, <pre> and <code> blocks are protected).

For some reason, this doesn't seem to work in inline equations.
Maruku is doing something funny there ... => one failing Unit Test.
2009-01-14 16:11:07 -06:00

40 lines
1.2 KiB
Ruby

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