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require 'stringio'
module Orgmode
class TextileOutputBuffer < OutputBuffer
def initialize(output)
super(output)
@add_paragraph = true
@support_definition_list = true # TODO this should be an option
@footnotes = []
end
def push_mode(mode, indent)
super(mode, indent)
@output << "bc. " if mode_is_code? mode
if mode == :center or mode == :quote
@add_paragraph = false
@output << "\n"
end
end
def pop_mode(mode = nil)
m = super(mode)
@list_indent_stack.pop
if m == :center or m == :quote
@add_paragraph = true
@output << "\n"
end
m
end
# Maps org markup to textile markup.
TextileMap = {
"*" => "*",
"/" => "_",
"_" => "_",
"=" => "@",
"~" => "@",
"+" => "+"
}
# Handles inline formatting for textile.
def inline_formatting(input)
@re_help.rewrite_emphasis input do |marker, body|
m = TextileMap[marker]
"#{m}#{body}#{m}"
end
@re_help.rewrite_subp input do |type, text|
if type == "_" then
"~#{text}~"
elsif type == "^" then
"^#{text}^"
end
end
@re_help.rewrite_links input do |link, defi|
[link, defi].compact.each do |text|
# We don't support search links right now. Get rid of it.
text.sub!(/\A(file:[^\s]+)::[^\s]*?\Z/, "\\1")
text.sub!(/\A(file:[^\s]+)\.org\Z/i, "\\1.textile")
text.sub!(/\Afile:(?=[^\s]+\Z)/, "")
end
# We don't add a description for images in links, because its
# empty value forces the image to be inlined.
defi ||= link unless link =~ @re_help.org_image_file_regexp
link = link.gsub(/ /, "%%20")
if defi =~ @re_help.org_image_file_regexp
defi = "!#{defi}(#{defi})!"
elsif defi
defi = "\"#{defi}\""
end
if defi
"#{defi}:#{link}"
else
"!#{link}(#{link})!"
end
end
@re_help.rewrite_footnote input do |name, definition|
# textile only support numerical names, so we need to do some conversion
# Try to find the footnote and use its index
footnote = @footnotes.select {|f| f[:name] == name }.first
if footnote
# The latest definition overrides other ones
footnote[:definition] = definition if definition and not footnote[:definition]
else
# There is no footnote with the current name so we add it
footnote = { :name => name, :definition => definition }
@footnotes << footnote
end
"[#{@footnotes.index(footnote)}]"
end
Orgmode.special_symbols_to_textile(input)
input = @re_help.restore_code_snippets input
input
end
def output_footnotes!
return false if @footnotes.empty?
@footnotes.each do |footnote|
index = @footnotes.index(footnote)
@output << "\nfn#{index}. #{footnote[:definition] || 'DEFINITION NOT FOUND' }\n"
end
return true
end
# Flushes the current buffer
def flush!
return false if @buffer.empty? and @output_type != :blank
@logger.debug "FLUSH ==========> #{@output_type}"
@buffer.gsub!(/\A\n*/, "")
case
when preserve_whitespace?
@output << @buffer << "\n"
when @output_type == :blank
@output << "\n"
else
case current_mode
when :paragraph
@output << "p. " if @add_paragraph
@output << "p=. " if @mode_stack[0] == :center
@output << "bq. " if @mode_stack[0] == :quote
when :list_item
if @mode_stack[-2] == :ordered_list
@output << "#" * @mode_stack.count(:list_item) << " "
else # corresponds to unordered list
@output << "*" * @mode_stack.count(:list_item) << " "
end
when :definition_term
if @support_definition_list
@output << "-" * @mode_stack.count(:definition_term) << " "
@buffer.sub!("::", ":=")
end
end
@output << inline_formatting(@buffer) << "\n"
end
@buffer = ""
end
def add_line_attributes headline
@output << "h#{headline.level}. "
end
end # class TextileOutputBuffer
end # module Orgmode
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