#!/bin/sh

# a script to create html diffs between published versions of RDFCore docs
#
# usage:
#  diffversions oldyear olddate newyear newdate
#
# eg:
#  diffversions 2003 0123 2003 1010
#

OLDYEAR=$1
OLDDATE=$OLDYEAR$2
NEWYEAR=$3
NEWDATE=$NEWYEAR$4

echo $OLDDATE $NEWDATE

for doc in primer concepts syntax-grammar schema mt testcases ; do

  wget -nd -O $doc-old.html \
        http://www.w3.org/TR/$OLDYEAR/WD-rdf-$doc-$OLDDATE/Overview.html;
  tr "\r" "\n" < $doc-old.html > old.html
  wget -nd -O $doc-new.html \
        http://www.w3.org/TR/$NEWYEAR/WD-rdf-$doc-$NEWDATE/Overview.html;
  tr "\r" "\n" < $doc-new.html > new.html
  htmldiff old.html new.html > $doc.html;
  rm $doc-old.html $doc-new.html old.html new.html

done