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#!/bin/sh
# This script walks through the master (stdin) help/message file, and
# prints (stdout) only those messages which are missing from the help
# file given as parameter ($1).
#
# Example: help_diff.sh help_mp-hu.h < help_mp-en.h > missing.h
curr=""
while read -r line; do
if echo "$line" | grep '^#define' > /dev/null 2>&1; then
curr=`printf "%s\n" "$line" | cut -d ' ' -f 2`
if grep "^#define $curr[ ]" $1 > /dev/null 2>&1; then
curr=""
fi
else
if [ -z "$line" ]; then
curr=""
fi
fi
if [ -n "$curr" ]; then
printf "%s\n" "$line"
fi
done
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