#!/bin/sh

#

# vym2html.sh

#

VERSION="0.7"

# Date: 20040625

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

#

# AddOns: Uwe Drechsel

#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 $VYMPATH 1>/dev/null

	  if [ $? -gt 0 ] ; then

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

	  	exit 4

	  fi

  fi

}

transform()

{

  # copy stylesheet

  if [ -z $STYLESHEETP ] ; then

	  echo ">>> Error: could not process stylesheet "$STYLESHEETP"! Aborting."

	  exit 5

  else

	  if [ -n $VYMPATH ] ; then

		  if [ -n "$WIKISTYLEP" ] ; then

		    mkdir -p $VYMPATH/images

			cp `dirname $STYLESHEETP`/wiki/* $VYMPATH/images

			if [ $? -gt 0 ] ; then

				echo ">>> Warning: could not copy images for WIKI style

				\""$STYLESHEETP"/wiki/*\"!"

			else

			  echo ">> WIKI style images \""$STYLESHEETP"/wiki/*\" copied ..."

			fi  

		  fi

	  	cp `dirname $STYLESHEETP`/$CSSFILE $VYMPATH

		if [ $? -gt 0 ] ; then

			echo ">>> Warning: could not copy CSS-file \""$CSSFILE"\"!"

		else

		  echo ">> CSS-file \""$CSSFILE"\" copied ..."

		fi

	  fi

  fi

  echo ">> Starting XSLT transformation ..."

  OPTIONS=" -o $VYMFILE.html \

  --stringparam filenamep \"$VYMFILE\" \

  --stringparam wikistylep \"$WIKISTYLEP\" \

  --stringparam genimagep \"$GENIMAGEP\" \

  --stringparam imageonlyp \"$IMAGEONLYP\" \

  --stringparam urlHeadingp \"$URLHEADING\" \

  --stringparam urlImagep \"$URLIMG\" \

  --stringparam stylesheetp $CSSFILE  \

  `dirname $STYLESHEETP`/vym2html.xsl \

  $VYMFILE.xml "

# echo Executing: xsltproc $OPTIONS 2>&1

#  xsltproc $OPTIONS 2>&1

xsltproc -o $VYMPATH/$VYMNAME".html" --stringparam filenamep "$VYMPATH/$VYMNAME" --stringparam wikistylep "$WIKISTYLEP" --stringparam genimagep "$GENIMAGEP" --stringparam imageonlyp "$IMAGEONLYP" --stringparam urlHeadingp "$URLHEADING" --stringparam urlImagep "$URLIMAGE" --stringparam stylesheetp "$CSSFILE"  `dirname $STYLESHEETP`/vym2html.xsl  $VYMPATH/$VYMNAME".xml" 2>&1

  if [ $? -gt 0 ] ; then

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

	  exit 3

  fi

}

txt2html()

# change all txt-files into xml-format

{

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

  do

    # Check whether already modified

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

	if [ $? -gt 0 ] ; then

	  echo ">> Modifying: "$i

	  cp $i $i"_tmp"

	  echo "<?xml version=\"1.0\" encoding=\"UTF-8\"?>" > $i

	  echo "<note>" >> $i

	  if [ -z "$WIKISTYLEP" ] ; then

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

	  fi

	  cat $i"_tmp" >> $i

	  if [ -z "$WIKISTYLEP" ] ; then

		  echo "]]>" >> $i

	  fi

	  echo "</note>" >> $i

	  rm $i"_tmp"

	fi

  done

}

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 $VYMPATH/notes/$VYMNAME-note-*.txt 2>/dev/null`

	do

	  rm $i

	done

	for i in `ls $VYMPATH/images/$VYMNAME-image-*.* 2>/dev/null`

	do

	  rm $i

	done

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

  fi

}

reducesize()

{

  # optional: reducing image-size

  echo ">> reducing image size to 256 colors ..."

  convert -colors 255 $VYMPATH/images/$VYMFILE".png" $VYMPATH/images/$VYMFILE".png"

}

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

GENIMAGEP=""

IMAGEONLYP=""

WIKISTYLEP=""

STYLESHEETP=""

CSSFILE="vym.css"

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

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

Output:\tvymfile.html\n\n

Options:\n

-image: creates a clickable image at the beginning of the HTML-output\n

-imageonly: creates a clickable image without further HTML-output\n

-URLHeading: if set, URLs will show the heading\n

-URLImage: if set, URLs will show the globe visible in the map\n

-css=\077: tell vym2html to use this CSS-file, default is '$CSSFILE'\n

-v: prints the version of vym2html\n

-wikistyle: activates some wiki-shortcuts\n

\tWiki-style notation overview: \n

\tLines:\n

\t+ Big headlines start with the '+' character.\n

\t- Small headlines start with the '-' character.\n

\t  Normal text doesn't have any starting notation.\n

\t! Notes start with an exclamation.\n

\t. Indented text starts with a dot.\n

\t\077 Questions start with a question-mark, and\n

\t= Answers starts with the equal-sign.\n

\t\052 Points for a item-list\n

\t# clues\n

\n

\tLinks:\n

\tuse '{...}' or '{(Clemens homepage) http://www.clemens-kraus.de/}'\n\tfor external links.\n

\n

\tMarkup:\n

\t|This is bold| text, while |/this text is italic|, \n\t|*this is pre-formatted|, and |!this is a note|"

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

	  echo "vym2html Version: "$VERSION

	  exit 0

fi

if [ $# -lt 2  ]; then 

	echo -e $USAGE

	exit 1

else

	VYMFILE_EXT=$1

	VYMNAME=`echo $VYMFILE_EXT | sed "s/.*\///" | sed "s/\\..*$//"`

	VYMPATH=`dirname $VYMFILE_EXT`

fi

shift 1

for arg do

  if [ "$arg" = '-wikistyle' ]; then

	  WIKISTYLEP="yes"

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

	  GENIMAGEP="yes"

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

	  IMAGEONLYP="yes"

	  GENIMAGEP="yes"

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

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

  elif [ ${arg:0:4} = '-css' ]; then		# take first 4 chars

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

  elif [ $arg = "-useURLHeading" ]; then

		URLHEADING="yes"		

  elif [ $arg = "-useURLImage" ]; then

		URLIMAGE="yes"		

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

	echo -e $USAGE

	exit 1

  else

	echo -e $USAGE

	exit 1

  fi

done

#Debugging

echo VYMFILE_EXT=$VYMFILE_EXT

echo VYMNAME=$VYMNAME

echo VYMPATH=$VYMPATH

#echo WIKISTYLEP=$WIKISTYLEP

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

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

# Unpack vym-file

unpacker

# Modify "*-note-x.txt" files

txt2html

# Transform

transform

#reducesize

# clean up

remove_files

echo ">> Ready!"

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

exit 0