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 S |
12 | |
13 | warn( "The 'complete.pl' legacy library is deprecated and will be" | |
14 | . " removed in the next major release of perl. Please use the" | |
15 | . " Term::Complete module instead." ); | |
16 | ||
55204971 | 17 | ;# @(#)complete.pl,v1.1 (me@anywhere.EBay.Sun.COM) 09/23/91 |
a687059c LW |
18 | ;# |
19 | ;# Author: Wayne Thompson | |
20 | ;# | |
21 | ;# Description: | |
22 | ;# This routine provides word completion. | |
23 | ;# (TAB) attempts word completion. | |
24 | ;# (^D) prints completion list. | |
55204971 | 25 | ;# (These may be changed by setting $Complete'complete, etc.) |
a687059c LW |
26 | ;# |
27 | ;# Diagnostics: | |
28 | ;# Bell when word completion fails. | |
29 | ;# | |
30 | ;# Dependencies: | |
31 | ;# The tty driver is put into raw mode. | |
32 | ;# | |
33 | ;# Bugs: | |
a687059c LW |
34 | ;# |
35 | ;# Usage: | |
55204971 LW |
36 | ;# $input = &Complete('prompt_string', *completion_list); |
37 | ;# or | |
38 | ;# $input = &Complete('prompt_string', @completion_list); | |
a687059c LW |
39 | ;# |
40 | ||
7e1cf235 LW |
41 | CONFIG: { |
42 | package Complete; | |
43 | ||
55204971 LW |
44 | $complete = "\004"; |
45 | $kill = "\025"; | |
46 | $erase1 = "\177"; | |
47 | $erase2 = "\010"; | |
7e1cf235 LW |
48 | } |
49 | ||
a687059c | 50 | sub Complete { |
7e1cf235 LW |
51 | package Complete; |
52 | ||
55497cff | 53 | local($prompt, @cmp_list, $return, @match, $l, $test, $cmp, $r); |
55204971 LW |
54 | if ($_[1] =~ /^StB\0/) { |
55 | ($prompt, *_) = @_; | |
a687059c | 56 | } |
55204971 LW |
57 | else { |
58 | $prompt = shift(@_); | |
59 | } | |
60 | @cmp_lst = sort(@_); | |
61 | ||
62 | system('stty raw -echo'); | |
63 | LOOP: { | |
64 | print($prompt, $return); | |
65 | while (($_ = getc(STDIN)) ne "\r") { | |
66 | CASE: { | |
67 | # (TAB) attempt completion | |
68 | $_ eq "\t" && do { | |
69 | @match = grep(/^$return/, @cmp_lst); | |
70 | $l = length($test = shift(@match)); | |
71 | unless ($#match < 0) { | |
72 | foreach $cmp (@match) { | |
73 | until (substr($cmp, 0, $l) eq substr($test, 0, $l)) { | |
74 | $l--; | |
75 | } | |
76 | } | |
77 | print("\a"); | |
78 | } | |
79 | print($test = substr($test, $r, $l - $r)); | |
80 | $r = length($return .= $test); | |
81 | last CASE; | |
82 | }; | |
83 | ||
84 | # (^D) completion list | |
85 | $_ eq $complete && do { | |
86 | print(join("\r\n", '', grep(/^$return/, @cmp_lst)), "\r\n"); | |
87 | redo LOOP; | |
88 | }; | |
89 | ||
90 | # (^U) kill | |
91 | $_ eq $kill && do { | |
92 | if ($r) { | |
40da2db3 JH |
93 | undef $r; |
94 | undef $return; | |
55204971 LW |
95 | print("\r\n"); |
96 | redo LOOP; | |
97 | } | |
98 | last CASE; | |
99 | }; | |
100 | ||
101 | # (DEL) || (BS) erase | |
102 | ($_ eq $erase1 || $_ eq $erase2) && do { | |
103 | if($r) { | |
104 | print("\b \b"); | |
105 | chop($return); | |
106 | $r--; | |
107 | } | |
108 | last CASE; | |
109 | }; | |
110 | ||
111 | # printable char | |
112 | ord >= 32 && do { | |
113 | $return .= $_; | |
114 | $r++; | |
115 | print; | |
116 | last CASE; | |
117 | }; | |
118 | } | |
119 | } | |
120 | } | |
121 | system('stty -raw echo'); | |
122 | print("\n"); | |
a687059c LW |
123 | $return; |
124 | } | |
125 | ||
126 | 1; |