Commit | Line | Data |
---|---|---|
a687059c | 1 | ;# |
a6d71656 GS |
2 | # |
3 | # This library is no longer being maintained, and is included for backward | |
4 | # compatibility with Perl 4 programs which may require it. | |
1aaec297 S |
5 | # This legacy library is deprecated and will be removed in a future |
6 | # release of perl. | |
a6d71656 GS |
7 | # |
8 | # In particular, this should not be used as an example of modern Perl | |
9 | # programming techniques. | |
10 | # | |
11 | # Suggested alternative: Term::Complete | |
1aaec297 | 12 | |
55204971 | 13 | ;# @(#)complete.pl,v1.1 (me@anywhere.EBay.Sun.COM) 09/23/91 |
a687059c LW |
14 | ;# |
15 | ;# Author: Wayne Thompson | |
16 | ;# | |
17 | ;# Description: | |
18 | ;# This routine provides word completion. | |
19 | ;# (TAB) attempts word completion. | |
20 | ;# (^D) prints completion list. | |
55204971 | 21 | ;# (These may be changed by setting $Complete'complete, etc.) |
a687059c LW |
22 | ;# |
23 | ;# Diagnostics: | |
24 | ;# Bell when word completion fails. | |
25 | ;# | |
26 | ;# Dependencies: | |
27 | ;# The tty driver is put into raw mode. | |
28 | ;# | |
29 | ;# Bugs: | |
a687059c LW |
30 | ;# |
31 | ;# Usage: | |
55204971 LW |
32 | ;# $input = &Complete('prompt_string', *completion_list); |
33 | ;# or | |
34 | ;# $input = &Complete('prompt_string', @completion_list); | |
a687059c LW |
35 | ;# |
36 | ||
7e1cf235 LW |
37 | CONFIG: { |
38 | package Complete; | |
39 | ||
55204971 LW |
40 | $complete = "\004"; |
41 | $kill = "\025"; | |
42 | $erase1 = "\177"; | |
43 | $erase2 = "\010"; | |
7e1cf235 LW |
44 | } |
45 | ||
a687059c | 46 | sub Complete { |
7e1cf235 LW |
47 | package Complete; |
48 | ||
55497cff | 49 | local($prompt, @cmp_list, $return, @match, $l, $test, $cmp, $r); |
55204971 LW |
50 | if ($_[1] =~ /^StB\0/) { |
51 | ($prompt, *_) = @_; | |
a687059c | 52 | } |
55204971 LW |
53 | else { |
54 | $prompt = shift(@_); | |
55 | } | |
56 | @cmp_lst = sort(@_); | |
57 | ||
58 | system('stty raw -echo'); | |
59 | LOOP: { | |
60 | print($prompt, $return); | |
61 | while (($_ = getc(STDIN)) ne "\r") { | |
62 | CASE: { | |
63 | # (TAB) attempt completion | |
64 | $_ eq "\t" && do { | |
65 | @match = grep(/^$return/, @cmp_lst); | |
66 | $l = length($test = shift(@match)); | |
67 | unless ($#match < 0) { | |
68 | foreach $cmp (@match) { | |
69 | until (substr($cmp, 0, $l) eq substr($test, 0, $l)) { | |
70 | $l--; | |
71 | } | |
72 | } | |
73 | print("\a"); | |
74 | } | |
75 | print($test = substr($test, $r, $l - $r)); | |
76 | $r = length($return .= $test); | |
77 | last CASE; | |
78 | }; | |
79 | ||
80 | # (^D) completion list | |
81 | $_ eq $complete && do { | |
82 | print(join("\r\n", '', grep(/^$return/, @cmp_lst)), "\r\n"); | |
83 | redo LOOP; | |
84 | }; | |
85 | ||
86 | # (^U) kill | |
87 | $_ eq $kill && do { | |
88 | if ($r) { | |
40da2db3 JH |
89 | undef $r; |
90 | undef $return; | |
55204971 LW |
91 | print("\r\n"); |
92 | redo LOOP; | |
93 | } | |
94 | last CASE; | |
95 | }; | |
96 | ||
97 | # (DEL) || (BS) erase | |
98 | ($_ eq $erase1 || $_ eq $erase2) && do { | |
99 | if($r) { | |
100 | print("\b \b"); | |
101 | chop($return); | |
102 | $r--; | |
103 | } | |
104 | last CASE; | |
105 | }; | |
106 | ||
107 | # printable char | |
108 | ord >= 32 && do { | |
109 | $return .= $_; | |
110 | $r++; | |
111 | print; | |
112 | last CASE; | |
113 | }; | |
114 | } | |
115 | } | |
116 | } | |
117 | system('stty -raw echo'); | |
118 | print("\n"); | |
a687059c LW |
119 | $return; |
120 | } | |
121 | ||
122 | 1; |