class BlueCloth


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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS “AS IS”
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this list of conditions and the following disclaimer.
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Redistribution and use in source and binary forms, with or without
All rights reserved.
Copyright © 2004-2011, Michael Granger
== License
$Revision: 34dd000f535c $
== Revision
2.1.0
== Version
<www.pell.portland.or.us/~orc>.
This product includes software developed by David Loren Parsons
* Florian Gross <flgr@ccan.de> - Filter options, suggestions
* Martin Chase <stillflame@FaerieMUD.org> - Peer review, helpful suggestions
== Contributors
* Michael Granger <ged@FaerieMUD.org>
== Authors
tool.
Bluecloth is a Ruby implementation of Markdown, a text-to-HTML conversion

def self::flags_from_opthash( opthash={} )

## opthash), just return it as-is.
## Fixnum (e.g., if someone passed in an ORed flags argument instead of an
## Convert the specified +opthash+ into a flags bitmask. If it's already a 
def self::flags_from_opthash( opthash={} )
	return opthash if opthash.is_a?( Integer )
	# Support BlueCloth1-style options
	if opthash == :filter_html || opthash == [:filter_html]
		opthash = { :escape_html => true }
	elsif opthash == :filter_styles
		opthash = {}
	elsif !opthash.is_a?( Hash )
		raise ArgumentError, "option %p not supported" % [ opthash ]
	end
	flags = 0
	if   opthash[:remove_links]     then flags |= MKD_NOLINKS;         end
	if   opthash[:remove_images]    then flags |= MKD_NOIMAGE;         end
	if ! opthash[:smartypants]      then flags |= MKD_NOPANTS;         end
	if   opthash[:escape_html]      then flags |= MKD_NOHTML;          end
	if   opthash[:strict_mode]      then flags |= MKD_STRICT;          end
	if   opthash[:tagtext_mode]     then flags |= MKD_TAGTEXT;         end
	if ! opthash[:pseudoprotocols]  then flags |= MKD_NO_EXT;          end
	if   opthash[:xml_cdata]        then flags |= MKD_CDATA;           end
	if ! opthash[:superscript]      then flags |= MKD_NOSUPERSCRIPT;   end
	if ! opthash[:relaxed]          then flags |= MKD_NORELAXED;       end
	if ! opthash[:tables]           then flags |= MKD_NOTABLES;        end
	if ! opthash[:strikethrough]    then flags |= MKD_NOSTRIKETHROUGH; end
	if   opthash[:header_labels]    then flags |= MKD_TOC;             end
	if   opthash[:mdtest_1_compat]  then flags |= MKD_1_COMPAT;        end
	if   opthash[:auto_links]       then flags |= MKD_AUTOLINK;        end
	if   opthash[:safe_links]       then flags |= MKD_SAFELINK;        end
	if ! opthash[:pandoc_headers]   then flags |= MKD_NOHEADER;        end
	if   opthash[:expand_tabs]      then flags |= MKD_TABSTOP;         end
	if ! opthash[:divquotes]        then flags |= MKD_NODIVQUOTE;      end
	if ! opthash[:alphalists]       then flags |= MKD_NOALPHALIST;     end
	if ! opthash[:definition_lists] then flags |= MKD_NODLIST;         end
	if   opthash[:footnotes]        then flags |= MKD_EXTRA_FOOTNOTE;  end
	return flags
end

def self::opthash_from_flags( flags=0 )

## Returns a Hash that reflects the settings from the specified +flags+ Integer. 
def self::opthash_from_flags( flags=0 )
	flags = flags.to_i
	opthash = {}
	if  ( flags & MKD_NOLINKS         ).nonzero? then opthash[:remove_links]     = true; end
	if  ( flags & MKD_NOIMAGE         ).nonzero? then opthash[:remove_images]    = true; end
	if !( flags & MKD_NOPANTS         ).nonzero? then opthash[:smartypants]      = true; end
	if  ( flags & MKD_NOHTML          ).nonzero? then opthash[:escape_html]      = true; end
	if  ( flags & MKD_STRICT          ).nonzero? then opthash[:strict_mode]      = true; end
	if  ( flags & MKD_TAGTEXT         ).nonzero? then opthash[:tagtext_mode]     = true; end
	if !( flags & MKD_NO_EXT          ).nonzero? then opthash[:pseudoprotocols]  = true; end
	if  ( flags & MKD_CDATA           ).nonzero? then opthash[:xml_cdata]        = true; end
	if !( flags & MKD_NOSUPERSCRIPT   ).nonzero? then opthash[:superscript]      = true; end
	if !( flags & MKD_NORELAXED       ).nonzero? then opthash[:relaxed]          = true; end
	if !( flags & MKD_NOTABLES        ).nonzero? then opthash[:tables]           = true; end
	if !( flags & MKD_NOSTRIKETHROUGH ).nonzero? then opthash[:strikethrough]    = true; end
	if  ( flags & MKD_TOC             ).nonzero? then opthash[:header_labels]    = true; end
	if  ( flags & MKD_1_COMPAT        ).nonzero? then opthash[:mdtest_1_compat]  = true; end
	if  ( flags & MKD_AUTOLINK        ).nonzero? then opthash[:auto_links]       = true; end
	if  ( flags & MKD_SAFELINK        ).nonzero? then opthash[:safe_links]       = true; end
	if !( flags & MKD_NOHEADER        ).nonzero? then opthash[:pandoc_headers]   = true; end
	if  ( flags & MKD_TABSTOP         ).nonzero? then opthash[:expand_tabs]      = true; end
	if !( flags & MKD_NODIVQUOTE      ).nonzero? then opthash[:divquotes]        = true; end
	if !( flags & MKD_NOALPHALIST     ).nonzero? then opthash[:alphalists]       = true; end
	if !( flags & MKD_NODLIST         ).nonzero? then opthash[:definition_lists] = true; end
	if  ( flags & MKD_EXTRA_FOOTNOTE  ).nonzero? then opthash[:footnotes]        = true; end
	return opthash
end

def inspect

## Return a human-readable representation of the object suitable for debugging. 
def inspect
	return "#<%s:0x%x text: %p; options: %p>" % [
		self.class.name,
		self.object_id / 2,
		self.text.length > INSPECT_TEXT_LENGTH ?
			self.text[ 0, INSPECT_TEXT_LENGTH - 5] + '[...]' :
			self.text,
		self.options,
	]
end