Commit | Line | Data |
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a687059c | 1 | ;# |
55204971 | 2 | ;# @(#)complete.pl,v1.1 (me@anywhere.EBay.Sun.COM) 09/23/91 |
a687059c LW |
3 | ;# |
4 | ;# Author: Wayne Thompson | |
5 | ;# | |
6 | ;# Description: | |
7 | ;# This routine provides word completion. | |
8 | ;# (TAB) attempts word completion. | |
9 | ;# (^D) prints completion list. | |
55204971 | 10 | ;# (These may be changed by setting $Complete'complete, etc.) |
a687059c LW |
11 | ;# |
12 | ;# Diagnostics: | |
13 | ;# Bell when word completion fails. | |
14 | ;# | |
15 | ;# Dependencies: | |
16 | ;# The tty driver is put into raw mode. | |
17 | ;# | |
18 | ;# Bugs: | |
a687059c LW |
19 | ;# |
20 | ;# Usage: | |
55204971 LW |
21 | ;# $input = &Complete('prompt_string', *completion_list); |
22 | ;# or | |
23 | ;# $input = &Complete('prompt_string', @completion_list); | |
a687059c LW |
24 | ;# |
25 | ||
7e1cf235 LW |
26 | CONFIG: { |
27 | package Complete; | |
28 | ||
55204971 LW |
29 | $complete = "\004"; |
30 | $kill = "\025"; | |
31 | $erase1 = "\177"; | |
32 | $erase2 = "\010"; | |
7e1cf235 LW |
33 | } |
34 | ||
a687059c | 35 | sub Complete { |
7e1cf235 LW |
36 | package Complete; |
37 | ||
55497cff | 38 | local($prompt, @cmp_list, $return, @match, $l, $test, $cmp, $r); |
55204971 LW |
39 | if ($_[1] =~ /^StB\0/) { |
40 | ($prompt, *_) = @_; | |
a687059c | 41 | } |
55204971 LW |
42 | else { |
43 | $prompt = shift(@_); | |
44 | } | |
45 | @cmp_lst = sort(@_); | |
46 | ||
47 | system('stty raw -echo'); | |
48 | LOOP: { | |
49 | print($prompt, $return); | |
50 | while (($_ = getc(STDIN)) ne "\r") { | |
51 | CASE: { | |
52 | # (TAB) attempt completion | |
53 | $_ eq "\t" && do { | |
54 | @match = grep(/^$return/, @cmp_lst); | |
55 | $l = length($test = shift(@match)); | |
56 | unless ($#match < 0) { | |
57 | foreach $cmp (@match) { | |
58 | until (substr($cmp, 0, $l) eq substr($test, 0, $l)) { | |
59 | $l--; | |
60 | } | |
61 | } | |
62 | print("\a"); | |
63 | } | |
64 | print($test = substr($test, $r, $l - $r)); | |
65 | $r = length($return .= $test); | |
66 | last CASE; | |
67 | }; | |
68 | ||
69 | # (^D) completion list | |
70 | $_ eq $complete && do { | |
71 | print(join("\r\n", '', grep(/^$return/, @cmp_lst)), "\r\n"); | |
72 | redo LOOP; | |
73 | }; | |
74 | ||
75 | # (^U) kill | |
76 | $_ eq $kill && do { | |
77 | if ($r) { | |
40da2db3 JH |
78 | undef $r; |
79 | undef $return; | |
55204971 LW |
80 | print("\r\n"); |
81 | redo LOOP; | |
82 | } | |
83 | last CASE; | |
84 | }; | |
85 | ||
86 | # (DEL) || (BS) erase | |
87 | ($_ eq $erase1 || $_ eq $erase2) && do { | |
88 | if($r) { | |
89 | print("\b \b"); | |
90 | chop($return); | |
91 | $r--; | |
92 | } | |
93 | last CASE; | |
94 | }; | |
95 | ||
96 | # printable char | |
97 | ord >= 32 && do { | |
98 | $return .= $_; | |
99 | $r++; | |
100 | print; | |
101 | last CASE; | |
102 | }; | |
103 | } | |
104 | } | |
105 | } | |
106 | system('stty -raw echo'); | |
107 | print("\n"); | |
a687059c LW |
108 | $return; |
109 | } | |
110 | ||
111 | 1; |