contrib/ncurses-5.4/include/MKkey_defs.sh

   1 #! /bin/sh
   2 # $Id: MKkey_defs.sh,v 1.14 2003/12/06 17:10:09 tom Exp $
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  30 #
  31 # MKkey_defs.sh -- generate function-key definitions for curses.h
  32 #
  33 # Author: Thomas E. Dickey 2001
  34 #
  35 # Extract function-key definitions from the Caps file
  36 #
  37 : ${AWK-awk}
  38 DATA=${1-Caps}
  39
  40 data=data$$
  41 pass1=pass1_$$
  42 pass2=pass2_$$
  43 pass3=pass3_$$
  44 pass4=pass4_$$
  45 trap 'rm -f $data pass[1234]_$$' 0 1 2 5 15
  46
  47 # change repeated tabs (used for readability) to single tabs (needed to make
  48 # awk see the right field alignment of the corresponding columns):
  49 if sort -k 6 $DATA >$data 2>/dev/null
  50 then
  51         # POSIX
  52         sed -e 's/[     ][      ]*/     /g' < $DATA |sort -n -k 6 >$data
  53 elif sort -n +5 $DATA >$data 2>/dev/null
  54 then
  55         # SunOS (and SVr4, marked as obsolete but still recognized)
  56         sed -e 's/[     ][      ]*/     /g' < $DATA |sort -n +5 >$data
  57 else
  58         echo "Your sort utility is broken.  Please install one that works." >&2
  59         exit 1
  60 fi
  61
  62 # add keys that we generate automatically:
  63 cat >>$data <<EOF
  64 key_resize      kr1     str     R1      KEY_RESIZE      +       -----   Terminal resize event
  65 key_event       kv1     str     V1      KEY_EVENT       +       -----   We were interrupted by an event
  66 EOF
  67
  68 cat <<EOF
  69 /*
  70  * These definitions were generated by $0 $DATA
  71  */
  72 EOF
  73
  74 # KEY_RESET
  75 maxkey=345
  76
  77 for pass in 1 2 3 4
  78 do
  79
  80 output=pass${pass}_$$
  81
  82 ${AWK-awk} >$output <$data '
  83 function print_cols(text,cols) {
  84         printf "%s", text
  85         len = length(text);
  86         while (len < cols) {
  87                 printf "        "
  88                 len += 8;
  89         }
  90 }
  91 function decode(keycode) {
  92         result = 0;
  93         if (substr(keycode, 1, 2) == "0x") {
  94                 digits="0123456789abcdef";
  95         } else if (substr(keycode, 1, 1) == "0") {
  96                 digits="01234567";
  97         } else {
  98                 digits="0123456789";
  99         }
 100         while (length(keycode) != 0) {
 101                 digit=substr(keycode, 1, 1);
 102                 keycode=substr(keycode, 2);
 103                 result = result * length(digits) + index(digits, digit) - 1;
 104         }
 105         return result;
 106 }
 107
 108 BEGIN   {
 109         maxkey='$maxkey';
 110         pass='$pass';
 111         key_max=1;
 112         bits=1;
 113         while (key_max < maxkey) {
 114                 bits = bits + 1;
 115                 key_max = (key_max * 2) + 1;
 116         }
 117         octal_fmt = sprintf ("%%0%do", (bits + 2) / 3 + 1);
 118 }
 119
 120 /^$/            {next;}
 121 /^#/            {next;}
 122 /^capalias/     {next;}
 123 /^infoalias/    {next;}
 124
 125 $5 != "-" && $6 != "-" {
 126                 if ($6 == "+") {
 127                         if (pass == 1 || pass == 2)
 128                                 next;
 129                         thiskey=maxkey + 1;
 130                 } else {
 131                         if (pass == 3)
 132                                 next;
 133                         thiskey=decode($6);
 134                 }
 135                 if (thiskey > maxkey)
 136                         maxkey = thiskey;
 137                 if (pass == 2 || pass == 3) {
 138                         showkey=sprintf(octal_fmt, thiskey);
 139                         if ($5 == "KEY_F(0)" ) {
 140                                 printf "#define "
 141                                 print_cols("KEY_F0", 16);
 142                                 print_cols(showkey, 16);
 143                                 print "/* Function keys.  Space for 64 */";
 144                                 printf "#define "
 145                                 print_cols("KEY_F(n)", 16);
 146                                 print_cols("(KEY_F0+(n))", 16);
 147                                 print "/* Value of function key n */"
 148                         } else {
 149                                 printf "#define "
 150                                 print_cols($5, 16);
 151                                 print_cols(showkey, 16);
 152                                 printf "/*"
 153                                 for (i = 8; i <= NF; i++)
 154                                         printf " %s", $i
 155                                 print " */"
 156                         }
 157                 }
 158         }
 159 END     {
 160                 if (pass == 1) {
 161                         print maxkey;
 162                 } else if (pass == 4) {
 163                         print "";
 164                         printf "#define ";
 165                         print_cols("KEY_MAX", 16);
 166                         result = sprintf (octal_fmt, key_max);
 167                         print_cols(result, 16);
 168                         printf "/* Maximum key value is ";
 169                         printf octal_fmt, maxkey;
 170                         print " */";
 171                 }
 172         }
 173 '
 174 if test $pass = 1 ; then
 175         maxkey=`cat $pass1`
 176 fi
 177
 178 done
 179
 180 cat $pass2
 181 cat $pass3
 182 cat $pass4