Initial commit of OpenSPARC T2 architecture model.

[OpenSPARC-T2-SAM] / sam-t2 / devtools / amd64 / lib / perl5 / 5.8.8 / complete.pl

;#
#
# This library is no longer being maintained, and is included for backward
# compatibility with Perl 4 programs which may require it.
#
# In particular, this should not be used as an example of modern Perl
# programming techniques.
#
# Suggested alternative: Term::Complete
#
;#      @(#)complete.pl,v1.1            (me@anywhere.EBay.Sun.COM) 09/23/91
;#
;# Author: Wayne Thompson
;#
;# Description:
;#     This routine provides word completion.
;#     (TAB) attempts word completion.
;#     (^D)  prints completion list.
;#      (These may be changed by setting $Complete'complete, etc.)
;#
;# Diagnostics:
;#     Bell when word completion fails.
;#
;# Dependencies:
;#     The tty driver is put into raw mode.
;#
;# Bugs:
;#
;# Usage:
;#     $input = &Complete('prompt_string', *completion_list);
;#         or
;#     $input = &Complete('prompt_string', @completion_list);
;#

CONFIG: {
   package Complete;

   $complete = "\004";
   $kill     = "\025";
   $erase1 =   "\177";
   $erase2 =   "\010";
}

sub Complete {
   package Complete;

   local($prompt, @cmp_list, $return, @match, $l, $test, $cmp, $r);
   if ($_[1] =~ /^StB\0/) {
       ($prompt, *_) = @_;
   }
   else {
       $prompt = shift(@_);
   }
   @cmp_lst = sort(@_);

   system('stty raw -echo');
   LOOP: {
       print($prompt, $return);
       while (($_ = getc(STDIN)) ne "\r") {
           CASE: {
               # (TAB) attempt completion
               $_ eq "\t" && do {
                   @match = grep(/^$return/, @cmp_lst);
                   $l = length($test = shift(@match));
                   unless ($#match < 0) {
                       foreach $cmp (@match) {
                           until (substr($cmp, 0, $l) eq substr($test, 0, $l)) {
                               $l--;
                           }
                       }
                       print("\a");
                   }
                   print($test = substr($test, $r, $l - $r));
                   $r = length($return .= $test);
                   last CASE;
               };

               # (^D) completion list
               $_ eq $complete && do {
                   print(join("\r\n", '', grep(/^$return/, @cmp_lst)), "\r\n");
                   redo LOOP;
               };

               # (^U) kill
               $_ eq $kill && do {
                   if ($r) {
                       undef $r;
                       undef $return;
                       print("\r\n");
                       redo LOOP;
                   }
                   last CASE;
               };

               # (DEL) || (BS) erase
               ($_ eq $erase1 || $_ eq $erase2) && do {
                   if($r) {
                       print("\b \b");
                       chop($return);
                       $r--;
                   }
                   last CASE;
               };

               # printable char
               ord >= 32 && do {
                   $return .= $_;
                   $r++;
                   print;
                   last CASE;
               };
           }
       }
   }
   system('stty -raw echo');
   print("\n");
   $return;
}

1;