ok
Direktori : /usr/share/perl5/vendor_perl/ |
Current File : //usr/share/perl5/vendor_perl/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;