#! /bin/sh # Mediawiki2Dokuwiki Converter # originally by Johannes Buchner # changes by Frederik Tilkin: - uses sed instead of perl # - resolved some bugs ('''''IMPORTANT!!!''''' becomes //**IMPORTANT!!!**//, // becomes // if it is not in a CODE block) # - added functionality (multiple lines starting with a space become CODE blocks) # # Licence: GPL (http://www.gnu.org/licenses/gpl.txt) # First escape things that are already DokuWiki but not MediaWiki syntax # // => // (only when it is NOT in a PREFORMATTED line, and when it is NOT in a LINK [] !) # ** => ** so that it's correctly converted to DokuWiki blocks later on cat mediawiki \ | sed -r -n ' #starts with a SPACE, so it is part of a code block, just print and do nothing /^[ ]/ { p; d } #else: replace ALL **... strings (not at beginning of line) s/([^^][^\*]*)(\*\*+)/\1\2<\/nowiki>/g # also replace ALL //... strings s/([^\/]*)(\/\/+)/\1\2<\/nowiki>/g # change the ones that have been replaced in a link [] BACK to normal (do it twice in case [http://addres.com http://address.com] ) [quick and dirty] s/([\[][^\[]*)()(\/\/+)(<\/nowiki>)([^\]]*)/\1\3\5/g ; s/([\[][^\[]*)()(\/\/+)(<\/nowiki>)([^\]]*)/\1\3\5/g p ' \ | sed -r -n ' # See also: http://www.grymoire.com/Unix/Sed.html#uh-40 # http://en.wikipedia.org/wiki/Regular_expression # This is pretty advanced sed syntax, so I ll try to explain as much as possible ################################################################################ # if line starts with a space, add it to the hold buffer # we do this by 'branching' to :addtopre /^ [ ]*[^ ][^ ]*/ b addtopre # if line has only whitespace or is empty, the preformatted block is over, so we surround that with 
		# we do this by 'branching' to :outputpre
		/^[ ]*$/ b outputpre
		# if line starts with NO whitespace, the preformatted block is over, so we surround that with 
		/^[^ ].*$/ b outputpre
				
		#else this is a normal line
				#s/(.*)/NORMAL LINE: \1/g; p
			# print the line
			p
			#delete the current pattern space (so new cycle is started -> jumps to top)
			d
		
		# this is a line that should be part of a CODE block
		:addtopre
			#add it to the hold buffer
			H
				#s/(.*)/ADDED LINE: \1/g; p
			# if this is the last line of the file (end-of-file), empty this line and then output this last preformatted block
			$ { s/.*//g
				b outputpre
			}
			#delete the current pattern space (so new cycle is started -> jumps to top)
			d
		# this is where a paragraph is surrounded by 

		:outputpre
				#s/(.*)/END OF CODE LINE: \1/g; p
			# HOLD buffer is exchanged with the pattern space
			x

			# IF not empty, surround with 
 and PRINT the pattern space
			/(.+)/ {
				# surround it with 
				s/(.+)/
\1<\/pre>/g
				p
			}
			# exchange pattern space and hold buffer again, pattern is now the current line (not part of the preformatted block) and PRINT this line
			x
			p
			#delete the current pattern space			
			s/.*//g
			#and exchange this again with the hold buffer, so that the hold buffer is empty again			
			x
			#delete the current pattern space (so new cycle is started -> jumps to top)
			d
	' \
    > mediawiki0

# Headings
cat mediawiki0 \
   | sed -r 's/^[ ]*=([^=])/
 \1/g' \
   | sed -r 's/([^=])=[ ]*$/\1 <\/h1>/g' \
   | sed -r 's/^[ ]*==([^=])/
 \1/g' \
   | sed -r 's/([^=])==[ ]*$/\1 <\/h2>/g' \
   | sed -r 's/^[ ]*===([^=])/
 \1/g' \
   | sed -r 's/([^=])===[ ]*$/\1 <\/h3>/g' \
   | sed -r 's/^[ ]*====([^=])/
 \1/g' \
   | sed -r 's/([^=])====[ ]*$/\1 <\/h4>/g' \
   | sed -r 's/^[ ]*=====([^=])/
 \1/g' \
   | sed -r 's/([^=])=====[ ]*$/\1 <\/h5>/g' \
   | sed -r 's/^[ ]*======([^=])/
 \1/g' \
   | sed -r 's/([^=])======[ ]*$/\1 <\/h6>/g' \
   > mediawiki1
 
cat mediawiki1 \
   | sed -r 's/<\/?h1>/======/g' \
   | sed -r 's/<\/?h2>/=====/g' \
   | sed -r 's/<\/?h3>/====/g' \
   | sed -r 's/<\/?h4>/===/g' \
   | sed -r 's/<\/?h5>/==/g' \
   | sed -r 's/<\/?h6>/=/g'  \
   > mediawiki2
 
# lists
cat mediawiki2 \
  | sed -r 's/^[*#][*#][*#][*#]\*/          * /g'  \
  | sed -r 's/^[*#][*#][*#]\*/        * /g'    \
  | sed -r 's/^[*#][*#]\*/      * /g'      \
  | sed -r 's/^[*#]\*/    * /g'        \
  | sed -r 's/^\*/  * /g'                  \
  | sed -r 's/^[*#][*#][*#][*#]#/          - /g'  \
  | sed -r 's/^[*#][*#][*#]#/        - /g'    \
  | sed -r 's/^[*#][*#]#/      - /g'      \
  | sed -r 's/^[*#]#/    - /g'        \
  | sed -r 's/^#/  - /g'                   \
  > mediawiki3
 
 
#[url text] => [url|text]
cat mediawiki3 \
  | sed -r 's/([^[]|^)(\[[^] ]*) ([^]]*\])([^]]|$)/\1\2|\3\4/g' \
  > mediawiki4


#[link] => [[link]]
cat mediawiki4 \
  | sed -r 's/([^[]|^)(\[[^]]*\])([^]]|$)/\1[\2]\3/g' \
  > mediawiki5

# bold, italic
cat mediawiki5 \
  | sed -r "s/'''''(.*)'''''/\/\/**\1**\/\//g" \
  | sed -r "s/'''/**/g" \
  | sed -r "s/''/\/\//g" \
  > mediawiki6
 
# talks
cat mediawiki6 \
  | sed -r "s/^[ ]*:/>/g" \
  | sed -r "s/>:/>>/g" \
  | sed -r "s/>>:/>>>/g" \
  | sed -r "s/>>>:/>>>>/g" \
  | sed -r "s/>>>>:/>>>>>/g" \
  | sed -r "s/>>>>>:/>>>>>>/g" \
  | sed -r "s/>>>>>>:/>>>>>>>/g" \
  > mediawiki7

cat mediawiki7 \
   | sed -r "s//\'\'/g" \
   | sed -r "s/<\/code>/\'\'/g" \
  > mediawiki8

cat mediawiki8 \
   | sed -r "s/
//g" \
   | sed -r "s/<\/pre>/<\/code>/g" \
  > mediawiki9

#100720-MSe: remove "<\code>\n \n"
cat mediawiki9 \
   | sed 'N;N;s/<\/code>\n[ \t]*\n//;P;D;D;' \
  > mediawiki10

#cat mediawiki10 > dokuwiki

# font (color, ...)
cat mediawiki10 \
  | sed 's///g' \
  | sed 's/<\/span>/<\/font>/g' \
  | sed 's///g' \
 > mediawiki11

cat mediawiki11 > dokuwiki