source: trunk/essentials/sys-libs/ncurses/include/MKkey_defs.sh

#! /bin/sh
# $Id: MKkey_defs.sh,v 1.14 2003/12/06 17:10:09 tom Exp $
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#
# MKkey_defs.sh -- generate function-key definitions for curses.h
#
# Author: Thomas E. Dickey 2001
#
# Extract function-key definitions from the Caps file
#
: ${AWK-awk}
DATA=${1-Caps}

data=data$$
pass1=pass1_$$
pass2=pass2_$$
pass3=pass3_$$
pass4=pass4_$$
trap 'rm -f $data pass[1234]_$$' 0 1 2 5 15

# change repeated tabs (used for readability) to single tabs (needed to make
# awk see the right field alignment of the corresponding columns):
if sort -k 6 $DATA >$data 2>/dev/null
then
        # POSIX
        sed -e 's/[     ][      ]*/     /g' < $DATA |sort -n -k 6 >$data
elif sort -n +5 $DATA >$data 2>/dev/null
then
        # SunOS (and SVr4, marked as obsolete but still recognized)
        sed -e 's/[     ][      ]*/     /g' < $DATA |sort -n +5 >$data
else
        echo "Your sort utility is broken.  Please install one that works." >&2
        exit 1
fi

# add keys that we generate automatically:
cat >>$data <<EOF
key_resize      kr1     str     R1      KEY_RESIZE      +       -----   Terminal resize event
key_event       kv1     str     V1      KEY_EVENT       +       -----   We were interrupted by an event
EOF

cat <<EOF
/*
 * These definitions were generated by $0 $DATA
 */
EOF

# KEY_RESET
maxkey=345

for pass in 1 2 3 4
do

output=pass${pass}_$$

${AWK-awk} >$output <$data '
function print_cols(text,cols) {
        printf "%s", text
        len = length(text);
        while (len < cols) {
                printf "        "
                len += 8;
        }
}
function decode(keycode) {
        result = 0;
        if (substr(keycode, 1, 2) == "0x") {
                digits="0123456789abcdef";
        } else if (substr(keycode, 1, 1) == "0") {
                digits="01234567";
        } else {
                digits="0123456789";
        }
        while (length(keycode) != 0) {
                digit=substr(keycode, 1, 1);
                keycode=substr(keycode, 2);
                result = result * length(digits) + index(digits, digit) - 1;
        }
        return result;
}

BEGIN   {
        maxkey='$maxkey';
        pass='$pass';
        key_max=1;
        bits=1;
        while (key_max < maxkey) {
                bits = bits + 1;
                key_max = (key_max * 2) + 1;
        }
        octal_fmt = sprintf ("%%0%do", (bits + 2) / 3 + 1);
}

/^$/            {next;}
/^#/            {next;}
/^capalias/     {next;}
/^infoalias/    {next;}

$5 != "-" && $6 != "-" {
                if ($6 == "+") {
                        if (pass == 1 || pass == 2)
                                next;
                        thiskey=maxkey + 1;
                } else {
                        if (pass == 3)
                                next;
                        thiskey=decode($6);
                }
                if (thiskey > maxkey)
                        maxkey = thiskey;
                if (pass == 2 || pass == 3) {
                        showkey=sprintf(octal_fmt, thiskey);
                        if ($5 == "KEY_F(0)" ) {
                                printf "#define "
                                print_cols("KEY_F0", 16);
                                print_cols(showkey, 16);
                                print "/* Function keys.  Space for 64 */";
                                printf "#define "
                                print_cols("KEY_F(n)", 16);
                                print_cols("(KEY_F0+(n))", 16);
                                print "/* Value of function key n */"
                        } else {
                                printf "#define "
                                print_cols($5, 16);
                                print_cols(showkey, 16);
                                printf "/*"
                                for (i = 8; i <= NF; i++)
                                        printf " %s", $i
                                print " */"
                        }
                }
        }
END     {
                if (pass == 1) {
                        print maxkey;
                } else if (pass == 4) {
                        print "";
                        printf "#define ";
                        print_cols("KEY_MAX", 16);
                        result = sprintf (octal_fmt, key_max);
                        print_cols(result, 16);
                        printf "/* Maximum key value is ";
                        printf octal_fmt, maxkey;
                        print " */";
                }
        }
'
if test $pass = 1 ; then
        maxkey=`cat $pass1`
fi

done

cat $pass2
cat $pass3
cat $pass4