#!/bin/sh
#
# ascii - search for the octal value of a character.

# $file is a file containing an ASCII character chart with the octal and
# hexadecimal value of each ASCII character.
file=/usr/pub/ascii

# Make pattern with spaces to match field in $file exactly:
case "$1" in
[[\\/])	pat=" \\$1 " ;;    # lets us search for [, \ and /
?)	pat=" $1 " ;;
??)	pat="$1 " ;;
???)	pat="$1" ;;
*)	echo "Usage: `basename $0` char
	(char must be single character like 'a' or name like 'soh')." 1>&2
	;;
esac

# Search for the octal representation of character(s) specified
sed -n "1,/^\$/s/.*|\([0-9][0-9][0-9]\) $pat|.*/\1/p" $file