help/help_diff.sh

   1 #!/bin/sh
   2
   3 # This script walks through the master (stdin) help/message file, and
   4 # prints (stdout) only those messages which are missing from the help
   5 # file given as parameter ($1).
   6 #
   7 # Example: help_diff.sh help_mp-hu.h < help_mp-en.h > missing.h
   8
   9 curr=""
  10
  11 while read -r line; do
  12         if echo "$line" | grep '^#define' > /dev/null 2>&1; then
  13                 curr=`printf "%s\n" "$line" | cut -d ' ' -f 2`
  14                 if grep "^#define $curr[         ]" $1 > /dev/null 2>&1; then
  15                         curr=""
  16                 fi
  17         else
  18                 if [ -z "$line" ]; then
  19                         curr=""
  20                 fi
  21         fi
  22
  23         if [ -n "$curr" ]; then
  24                 printf "%s\n" "$line"
  25         fi
  26 done