instiki/lib/chunks/literal.rb
Jacques Distler 0b2a6935a2 Export XHTML Pages
When a Web uses one of the Markdown Text Filters, and you export
all the pages as a zip file, you'd like the MathML and SVG to
render when the pages are viewed locally. This means saving them
with a .xhtml extension. Users of non-XHTML-capable browsers or
Textile users should still get .html files.
2009-01-23 11:02:16 -06:00

40 lines
1.3 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:]+\b[^>]*?>', 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