#!/bin/sh
version=0.5
name="$(echo $1| sed 's/\.tex$//')"
if [ ! -r "$name.tex" -o "$(grep ^.documentclass $name.tex)" = "" ]; then
 echo "

tex2bib, version $version

Usage:

tex2bib file[.tex]

  (C) Andrew Comech, 2008.  GNU General Public License.
"
  exit 0
fi

[ -r $name.bib ] && mv $name.bib $name.bib.old

touch $name.bib

cat $name.tex |sed 's/\[.*\]//g'| sed 's/\}/\
/g'| sed 's/\\cite{/\
\\cite{/g'| fgrep '\cite'|sed 's/\\cite{//; s/,/ /g' > $name.refs

for i in `cat $name.refs`; do

  echo -n "$i "
  if [ "$(grep $i $name.bib)" != "" ]; then 
    echo "Already retrieved: $(grep $i $name.bib|grep '@')"
  else 
    if [ -s $name.bbl -a "$(grep $i $name.bbl|grep bibitem)" != "" ]; then 
      echo "Already present in $name.bbl: $(grep $i $name.bbl|grep bibitem)"
    else 
      bibget r=$i | sed 's/\\bold\ /\\mathbf /g; s/\\bold{/\\mathbf{/g' \
       >> $name.bib && echo " (OK)"
    fi
  fi
done

exit 0