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. | |
5 | # | |
6 | # In particular, this should not be used as an example of modern Perl | |
7 | # programming techniques. | |
8 | # | |
9 | # Suggested alternative: Term::Complete | |
10 | # | |
55204971 | 11 | ;# @(#)complete.pl,v1.1 (me@anywhere.EBay.Sun.COM) 09/23/91 |
a687059c LW |
12 | ;# |
13 | ;# Author: Wayne Thompson | |
14 | ;# | |
15 | ;# Description: | |
16 | ;# This routine provides word completion. | |
17 | ;# (TAB) attempts word completion. | |
18 | ;# (^D) prints completion list. | |
55204971 | 19 | ;# (These may be changed by setting $Complete'complete, etc.) |
a687059c LW |
20 | ;# |
21 | ;# Diagnostics: | |
22 | ;# Bell when word completion fails. | |
23 | ;# | |
24 | ;# Dependencies: | |
25 | ;# The tty driver is put into raw mode. | |
26 | ;# | |
27 | ;# Bugs: | |
a687059c LW |
28 | ;# |
29 | ;# Usage: | |
55204971 LW |
30 | ;# $input = &Complete('prompt_string', *completion_list); |
31 | ;# or | |
32 | ;# $input = &Complete('prompt_string', @completion_list); | |
a687059c LW |
33 | ;# |
34 | ||
7e1cf235 LW |
35 | CONFIG: { |
36 | package Complete; | |
37 | ||
55204971 LW |
38 | $complete = "\004"; |
39 | $kill = "\025"; | |
40 | $erase1 = "\177"; | |
41 | $erase2 = "\010"; | |
7e1cf235 LW |
42 | } |
43 | ||
a687059c | 44 | sub Complete { |
7e1cf235 LW |
45 | package Complete; |
46 | ||
55497cff | 47 | local($prompt, @cmp_list, $return, @match, $l, $test, $cmp, $r); |
55204971 LW |
48 | if ($_[1] =~ /^StB\0/) { |
49 | ($prompt, *_) = @_; | |
a687059c | 50 | } |
55204971 LW |
51 | else { |
52 | $prompt = shift(@_); | |
53 | } | |
54 | @cmp_lst = sort(@_); | |
55 | ||
56 | system('stty raw -echo'); | |
57 | LOOP: { | |
58 | print($prompt, $return); | |
59 | while (($_ = getc(STDIN)) ne "\r") { | |
60 | CASE: { | |
61 | # (TAB) attempt completion | |
62 | $_ eq "\t" && do { | |
63 | @match = grep(/^$return/, @cmp_lst); | |
64 | $l = length($test = shift(@match)); | |
65 | unless ($#match < 0) { | |
66 | foreach $cmp (@match) { | |
67 | until (substr($cmp, 0, $l) eq substr($test, 0, $l)) { | |
68 | $l--; | |
69 | } | |
70 | } | |
71 | print("\a"); | |
72 | } | |
73 | print($test = substr($test, $r, $l - $r)); | |
74 | $r = length($return .= $test); | |
75 | last CASE; | |
76 | }; | |
77 | ||
78 | # (^D) completion list | |
79 | $_ eq $complete && do { | |
80 | print(join("\r\n", '', grep(/^$return/, @cmp_lst)), "\r\n"); | |
81 | redo LOOP; | |
82 | }; | |
83 | ||
84 | # (^U) kill | |
85 | $_ eq $kill && do { | |
86 | if ($r) { | |
40da2db3 JH |
87 | undef $r; |
88 | undef $return; | |
55204971 LW |
89 | print("\r\n"); |
90 | redo LOOP; | |
91 | } | |
92 | last CASE; | |
93 | }; | |
94 | ||
95 | # (DEL) || (BS) erase | |
96 | ($_ eq $erase1 || $_ eq $erase2) && do { | |
97 | if($r) { | |
98 | print("\b \b"); | |
99 | chop($return); | |
100 | $r--; | |
101 | } | |
102 | last CASE; | |
103 | }; | |
104 | ||
105 | # printable char | |
106 | ord >= 32 && do { | |
107 | $return .= $_; | |
108 | $r++; | |
109 | print; | |
110 | last CASE; | |
111 | }; | |
112 | } | |
113 | } | |
114 | } | |
115 | system('stty -raw echo'); | |
116 | print("\n"); | |
a687059c LW |
117 | $return; |
118 | } | |
119 | ||
120 | 1; |