helper to dwdiff

wdiffc.sh

#!/bin/bash

# Default -c on if stdout is a terminal:
if [ -t 1 ]; then C='-c'; 
else C=; fi

# Assume --diff-input if stdin is not a terminal:
if [ -t 0 ]; then DI=
else DI='--diff-input'; fi

# Since the -c option removes them; I like having them always on:
MARKERS=(-w'[-' -x'-]' -y'{+' -z'+}')

dwdiff $C $DI ${MARKERS[*]}  "$@"