#!/bin/sh

#

# vym2txt.sh

#

VERSION="0.11"

# Date: 20040417

# Author: Clemens Kraus (http://www.clemens-kraus.de)

#

#echo $@

unpacker()

# Unpack vym-file, only if it is one

{

  echo $VYMFILE_EXT | grep -F ".vym" 1>/dev/null

  if [ $? = 0 ] ; then

	  echo ">> Unpacking files ..."

	  unzip $VYMFILE_EXT -d $VYMFILE_PATH 1>/dev/null

	  if [ $? -gt 0 ] ; then

		echo ">>> Error in unzip! Aborting."

	  	exit 4

	  fi

  fi

}

txt2xml()

# change all txt-files into xml-format

{

  for i in `ls $VYMFILE-note-*.txt 2>/dev/null`

  do

    # Check whether already modified

	grep "<note>" $i 1>/dev/null

	if [ $? -gt 0 ] ; then

	  echo ">> Modifying: "$i

	  # Each line gets an additional <line>-tag, because of the indents!

	  sed -e 's,^,<line><![CDATA[,g' -e 's,$,]]>\&#xA;</line>,g' $i > $i"_tmp"

	  #cp $i $i"_tmp"

	  echo "<?xml version=\"1.0\" encoding=\"iso-8859-1\"?>" > $i

	  echo "<note>" >> $i

	  #echo "<![CDATA[" >> $i

	  cat $i"_tmp" >> $i

	  #echo "]]>" >> $i

	  echo "</note>" >> $i

	  rm $i"_tmp"

	fi

  done

}

transform()

{

  echo ">> Starting XSLT transformation ..."

# sabcmd vym2html.xsl $VYMFILE".xml"  \$filenamep=$VYMFILE \$wikistylep=$WIKISTYLEP \$genimagep=$GENIMAGEP \$stylesheetp=$STYLESHEETP > $VYMFILE".html"

  xsltproc -o $VYMFILE".txt" --stringparam filenamep `pwd`/"$VYMFILE" `dirname $STYLESHEETP`/vym2txt.xsl  $VYMFILE".xml"

  if [ $? -gt 0 ] ; then

	  echo ">>> Error in xsltproc! Aborting."

	  exit 3

  fi

}

remove_files()

# remove all temporary unpacked vym-files

{

  echo $VYMFILE_EXT | grep -F ".vym" 1>/dev/null

  if [ $? = 0 ] ; then

	echo ">> Removing temporary files ..."

	for i in `ls $VYMFILE-note-*.txt 2>/dev/null`

	do

	  rm $i

	done

	for i in `ls $VYMFILE-image-*.* 2>/dev/null`

	do

	  rm $i

	done

	rm $VYMFILE".xml" 2>/dev/null

  fi

}

# -------------------- Parameter check -----------------------

STYLESHEETP=""

USAGE="USAGE:\t`basename $0`  vymfile.[vym|xml]  -sp=\077  [Options]\n"

USAGE=$USAGE"\t-sp=\077: absolute stylesheet path (including name of stylesheet)\n"

USAGE=$USAGE"Output:\tvymfile.txt\n\n"

USAGE=$USAGE"Options:\n"

USAGE=$USAGE"-v: prints the version of vym2txt\n"

if [ "$1" = '-v' ]; then

	  echo "vym2txt Version: "$VERSION

	  exit 0

fi

if [ $# -lt 1 -o $# -gt 2 -o "$1" = '-help' ]; then 

	echo -e $USAGE

	exit 1

else

	VYMFILE_EXT=$1

	VYMFILE=`echo $VYMFILE_EXT | cut -d. -f1`

	VYMFILE_PATH=`dirname $VYMFILE_EXT`

fi

for arg in $2

do

  if [ ${arg:0:3} = '-sp' ]; then		# take first 3 chars

	  STYLESHEETP=`echo $arg | cut -d= -f2`

  elif [ "$arg" = '-help' ]; then

	echo -e $USAGE

	exit 1

  else

	echo -e $USAGE

	exit 1

  fi

done

# ---------------------- Los geht's --------------------------

echo ">> Processing file '$VYMFILE_EXT' ..."

# Unpack vym-file

unpacker

txt2xml

# Transform

transform

# clean up

remove_files

echo ">> Ready!"

echo ">> ---------------------"

exit 0