interhg: allow more flexible pattern specification (fixes 2/3 of issue699) - something else than "pat" followed by a number can be used as key - something else than "/" can be used as delimiter - "ilmsux" flags (e.g. "i" for case insensitive) can be used

#!/bin/sh
# test command parsing and dispatch

hg init a
cd a
echo a > a
hg ci -Ama -d '0 0'

echo "# missing arg"
hg cat

echo '% [defaults]'
hg cat a
cat > $HGRCPATH <<EOF
[defaults]
cat = -v
EOF
hg cat a

echo '% no repo'
cd ..
hg cat

exit 0