97 lines
No EOL
3.5 KiB
Ruby
97 lines
No EOL
3.5 KiB
Ruby
require 'cgi'
|
|
require 'chunks/engines'
|
|
require 'chunks/category'
|
|
require 'chunks/include'
|
|
require 'chunks/wiki'
|
|
require 'chunks/literal'
|
|
require 'chunks/uri'
|
|
require 'chunks/nowiki'
|
|
|
|
# Wiki content is just a string that can process itself with a chain of
|
|
# actions. The actions can modify wiki content so that certain parts of
|
|
# it are protected from being rendered by later actions.
|
|
#
|
|
# When wiki content is rendered, it can be interrogated to find out
|
|
# which chunks were rendered. This means things like categories, wiki
|
|
# links, can be determined.
|
|
#
|
|
# Exactly how wiki content is rendered is determined by a number of
|
|
# settings that are optionally passed in to a constructor. The current
|
|
# options are:
|
|
# * :engine
|
|
# => The structural markup engine to use (Textile, Markdown, RDoc)
|
|
# * :engine_opts
|
|
# => A list of options to pass to the markup engines (safe modes, etc)
|
|
# * :pre_engine_actions
|
|
# => A list of render actions or chunks to be processed before the
|
|
# markup engine is applied. By default this is:
|
|
# Category, Include, URIChunk, WikiChunk::Link, WikiChunk::Word
|
|
# * :post_engine_actions
|
|
# => A list of render actions or chunks to apply after the markup
|
|
# engine. By default these are:
|
|
# Literal::Pre, Literal::Tags
|
|
# * :mode
|
|
# => How should the content be rendered? For normal display (:display),
|
|
# publishing (:publish) or export (:export)?
|
|
#
|
|
# AUTHOR: Mark Reid <mark @ threewordslong . com>
|
|
# CREATED: 15th May 2004
|
|
# UPDATED: 22nd May 2004
|
|
class WikiContent < String
|
|
|
|
PRE_ENGINE_ACTIONS = [ NoWiki, Category, Include, WikiChunk::Link, URIChunk, LocalURIChunk,
|
|
WikiChunk::Word ]
|
|
POST_ENGINE_ACTIONS = [ Literal::Pre, Literal::Tags ]
|
|
DEFAULT_OPTS = {
|
|
:pre_engine_actions => PRE_ENGINE_ACTIONS,
|
|
:post_engine_actions => POST_ENGINE_ACTIONS,
|
|
:engine => Engines::Textile,
|
|
:engine_opts => [],
|
|
:mode => [:display]
|
|
}
|
|
|
|
attr_reader :web, :options, :rendered, :chunks
|
|
|
|
# Create a new wiki content string from the given one.
|
|
# The options are explained at the top of this file.
|
|
def initialize(revision, options = {})
|
|
@revision = revision
|
|
@web = @revision.page.web
|
|
|
|
# Deep copy of DEFAULT_OPTS to ensure that changes to PRE/POST_ENGINE_ACTIONS stay local
|
|
@options = Marshal.load(Marshal.dump(DEFAULT_OPTS)).update(options)
|
|
@options[:engine] = Engines::MAP[@web.markup] || Engines::Textile
|
|
@options[:engine_opts] = (@web.safe_mode ? [:filter_html, :filter_styles] : [])
|
|
|
|
@options[:pre_engine_actions].delete(WikiChunk::Word) if @web.brackets_only
|
|
|
|
super(@revision.content)
|
|
|
|
begin
|
|
render!(@options[:pre_engine_actions] + [@options[:engine]] + @options[:post_engine_actions])
|
|
# FIXME this is where all the parsing problems were shoved under the carpet
|
|
# rescue => e
|
|
# @rendered = e.message
|
|
end
|
|
end
|
|
|
|
# Call @web.page_link using current options.
|
|
def page_link(name, text, link_type)
|
|
@options[:link_type] = link_type || :show
|
|
@web.make_link(name, text, @options)
|
|
end
|
|
|
|
# Find all the chunks of the given types
|
|
def find_chunks(chunk_type)
|
|
rendered.select { |chunk| chunk.kind_of?(chunk_type) }
|
|
end
|
|
|
|
# Render this content using the specified actions.
|
|
def render!(chunk_types)
|
|
@chunks = []
|
|
chunk_types.each { |chunk_type| chunk_type.apply_to(self) }
|
|
@rendered = @chunks.map { |chunk| chunk.unmask(self) }.compact
|
|
(@chunks - @rendered).each { |chunk| chunk.revert(self) }
|
|
end
|
|
|
|
end |