8263e4bfcd
contents of wiki links are not passed to markup engines; got rid of bracketing mask method in the chunks parser (it was a feature that caused a lot of parsing grief for no good reason)
142 lines
4 KiB
Ruby
Executable file
142 lines
4 KiB
Ruby
Executable file
require 'wiki_words'
|
|
require 'chunks/chunk'
|
|
require 'chunks/wiki'
|
|
require 'cgi'
|
|
|
|
# Contains all the methods for finding and replacing wiki related links.
|
|
module WikiChunk
|
|
include Chunk
|
|
|
|
# A wiki link is the top-level class for anything that refers to
|
|
# another wiki page.
|
|
class WikiLink < Chunk::Abstract
|
|
|
|
attr_reader :page_name, :link_text, :link_type
|
|
|
|
def initialize(*args)
|
|
super
|
|
@link_type = 'show'
|
|
end
|
|
|
|
def self.apply_to(content)
|
|
content.gsub!( self.pattern ) do |matched_text|
|
|
chunk = self.new($~)
|
|
if chunk.textile_url?
|
|
# do not substitute
|
|
matched_text
|
|
else
|
|
content.chunks << chunk
|
|
chunk.mask(content)
|
|
end
|
|
end
|
|
end
|
|
|
|
def textile_url?
|
|
not @textile_link_suffix.nil?
|
|
end
|
|
|
|
# By default, no escaped text
|
|
def escaped_text() nil end
|
|
|
|
# Replace link with a mask, but if the word is escaped, then don't replace it
|
|
def mask(content)
|
|
escaped_text || super(content)
|
|
end
|
|
|
|
def revert(content) content.sub!(mask(content), text) end
|
|
|
|
# Do not keep this chunk if it is escaped.
|
|
# Otherwise, pass the link procedure a page_name and link_text and
|
|
# get back a string of HTML to replace the mask with.
|
|
def unmask(content)
|
|
if escaped_text
|
|
return self
|
|
else
|
|
chunk_found = content.sub!(mask(content)) do |match|
|
|
content.page_link(page_name, link_text, link_type)
|
|
end
|
|
if chunk_found
|
|
return self
|
|
else
|
|
return nil
|
|
end
|
|
end
|
|
end
|
|
|
|
end
|
|
|
|
# This chunk matches a WikiWord. WikiWords can be escaped
|
|
# by prepending a '\'. When this is the case, the +escaped_text+
|
|
# method will return the WikiWord instead of the usual +nil+.
|
|
# The +page_name+ method returns the matched WikiWord.
|
|
class Word < WikiLink
|
|
unless defined? WIKI_LINK
|
|
WIKI_WORD = Regexp.new('(":)?(\\\\)?(' + WikiWords::WIKI_WORD_PATTERN + ')\b', 0, "utf-8")
|
|
end
|
|
|
|
def self.pattern
|
|
WIKI_WORD
|
|
end
|
|
|
|
def initialize(match_data)
|
|
super(match_data)
|
|
@textile_link_suffix, @escape, @page_name = match_data[1..3]
|
|
end
|
|
|
|
def escaped_text
|
|
page_name unless @escape.nil?
|
|
end
|
|
def link_text() WikiWords.separate(page_name) end
|
|
end
|
|
|
|
# This chunk handles [[bracketted wiki words]] and
|
|
# [[AliasedWords|aliased wiki words]]. The first part of an
|
|
# aliased wiki word must be a WikiWord. If the WikiWord
|
|
# is aliased, the +link_text+ field will contain the
|
|
# alias, otherwise +link_text+ will contain the entire
|
|
# contents within the double brackets.
|
|
#
|
|
# NOTE: This chunk must be tested before WikiWord since
|
|
# a WikiWords can be a substring of a WikiLink.
|
|
class Link < WikiLink
|
|
|
|
unless defined? WIKI_LINK
|
|
WIKI_LINK = /(":)?\[\[([^\]]+)\]\]/
|
|
LINK_TYPE_SEPARATION = Regexp.new('^(.+):((file)|(pic))$', 0, 'utf-8')
|
|
ALIAS_SEPARATION = Regexp.new('^(.+)\|(.+)$', 0, 'utf-8')
|
|
end
|
|
|
|
def self.pattern() WIKI_LINK end
|
|
|
|
def initialize(match_data)
|
|
super(match_data)
|
|
@textile_link_suffix, @page_name = match_data[1..2]
|
|
@link_text = @page_name
|
|
separate_link_type
|
|
separate_alias
|
|
end
|
|
|
|
private
|
|
|
|
# if link wihin the brackets has a form of [[filename:file]] or [[filename:pic]],
|
|
# this means a link to a picture or a file
|
|
def separate_link_type
|
|
link_type_match = LINK_TYPE_SEPARATION.match(@page_name)
|
|
if link_type_match
|
|
@link_text = @page_name = link_type_match[1]
|
|
@link_type = link_type_match[2..3].compact[0]
|
|
end
|
|
end
|
|
|
|
# link text may be different from page name. this will look like [[actual page|link text]]
|
|
def separate_alias
|
|
alias_match = ALIAS_SEPARATION.match(@page_name)
|
|
if alias_match
|
|
@page_name, @link_text = alias_match[1..2]
|
|
end
|
|
# note that [[filename|link text:file]] is also supported
|
|
end
|
|
|
|
end
|
|
|
|
end
|