rf-web/vendor/bundle/gems/kramdown-2.1.0/lib/kramdown/parser/markdown.rb
2019-10-21 10:18:17 +02:00

58 lines
2.0 KiB
Ruby

# -*- coding: utf-8; frozen_string_literal: true -*-
#
#--
# Copyright (C) 2009-2019 Thomas Leitner <t_leitner@gmx.at>
#
# This file is part of kramdown which is licensed under the MIT.
#++
#
require 'kramdown/parser'
module Kramdown
module Parser
# Used for parsing a document in Markdown format.
#
# This parser is based on the kramdown parser and removes the parser methods for the additional
# non-Markdown features. However, since some things are handled differently by the kramdown
# parser methods (like deciding when a list item contains just text), this parser differs from
# real Markdown parsers in some respects.
#
# Note, though, that the parser basically fails just one of the Markdown test cases (some others
# also fail but those failures are negligible).
class Markdown < Kramdown
# Array with all the parsing methods that should be removed from the standard kramdown parser.
EXTENDED = [:codeblock_fenced, :table, :definition_list, :footnote_definition,
:abbrev_definition, :block_math, :block_extensions,
:footnote_marker, :smart_quotes, :inline_math, :span_extensions, :typographic_syms]
def initialize(source, options) # :nodoc:
super
@block_parsers.delete_if {|i| EXTENDED.include?(i) }
@span_parsers.delete_if {|i| EXTENDED.include?(i) }
end
# :stopdoc:
BLOCK_BOUNDARY = /#{BLANK_LINE}|#{EOB_MARKER}|\Z/
LAZY_END = /#{BLANK_LINE}|#{EOB_MARKER}|^#{OPT_SPACE}#{LAZY_END_HTML_STOP}|
^#{OPT_SPACE}#{LAZY_END_HTML_START}|\Z/x
CODEBLOCK_MATCH = /(?:#{BLANK_LINE}?(?:#{INDENT}[ \t]*\S.*\n)+)*/
PARAGRAPH_END = LAZY_END
IAL_RAND_CHARS = (('a'..'z').to_a + ('0'..'9').to_a)
IAL_RAND_STRING = (1..20).collect { IAL_RAND_CHARS[rand(IAL_RAND_CHARS.size)] }.join
LIST_ITEM_IAL = /^\s*(#{IAL_RAND_STRING})?\s*\n/
IAL_SPAN_START = LIST_ITEM_IAL
# :startdoc:
end
end
end