1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
|
package Term::Complete;
require 5.000;
require Exporter;
@ISA = qw(Exporter);
@EXPORT = qw(Complete);
# @(#)complete.pl,v1.1 (me@anywhere.EBay.Sun.COM) 09/23/91
=head1 NAME
Term::Complete - Perl word completion module
=head1 SYNOPSIS
$input = complete('prompt_string', \@completion_list);
$input = complete('prompt_string', @completion_list);
=head1 DESCRIPTION
This routine provides word completion on the list of words in
the array (or array ref).
The tty driver is put into raw mode using the system command
C<stty raw -echo> and restored using C<stty -raw echo>.
The following command characters are defined:
=over 4
=item E<lt>tabE<gt>
Attempts word completion.
Cannot be changed.
=item ^D
Prints completion list.
Defined by I<$Term::Complete::complete>.
=item ^U
Erases the current input.
Defined by I<$Term::Complete::kill>.
=item E<lt>delE<gt>, E<lt>bsE<gt>
Erases one character.
Defined by I<$Term::Complete::erase1> and I<$Term::Complete::erase2>.
=back
=head1 DIAGNOSTICS
Bell sounds when word completion fails.
=head1 BUGS
The completion charater E<lt>tabE<gt> cannot be changed.
=head1 AUTHOR
Wayne Thompson
=cut
CONFIG: {
$complete = "\004";
$kill = "\025";
$erase1 = "\177";
$erase2 = "\010";
}
sub Complete {
$prompt = shift;
if (ref $_[0] || $_[0] =~ /^\*/) {
@cmp_lst = sort @{$_[0]};
}
else {
@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, $return);
print("\r\n");
redo LOOP;
}
last CASE;
};
# (DEL) || (BS) erase
($_ 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;
|
