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
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
|
#!/usr/bin/perl
# Exercise expand.
# Copyright (C) 2004-2025 Free Software Foundation, Inc.
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <https://www.gnu.org/licenses/>.
use strict;
my $limits = getlimits ();
my $UINTMAX_OFLOW = $limits->{UINTMAX_OFLOW};
(my $program_name = $0) =~ s|.*/||;
my $prog = 'expand';
# Turn off localization of executable's output.
@ENV{qw(LANGUAGE LANG LC_ALL)} = ('C') x 3;
my @Tests =
(
['t1', '--tabs=3', {IN=>"a\tb"}, {OUT=>"a b"}],
['t2', '--tabs=3,6,9', {IN=>"a\tb\tc\td\te"}, {OUT=>"a b c d e"}],
['t3', '--tabs="3 6 9"', {IN=>"a\tb\tc\td\te"}, {OUT=>"a b c d e"}],
# Leading space/commas are silently ignored; Mixing space/commas is allowed.
# (a side-effect of allowing direct "-3,9" parameter).
['t4', '--tabs=", 3,6 9"', {IN=>"a\tb\tc\td\te"}, {OUT=>"a b c d e"}],
# tab stops parameter without values
['t5', '--tabs=""', {IN=>"a\tb\tc"}, {OUT=>"a b c"}],
['t6', '--tabs=","', {IN=>"a\tb\tc"}, {OUT=>"a b c"}],
['t7', '--tabs=" "', {IN=>"a\tb\tc"}, {OUT=>"a b c"}],
['t8', '--tabs="/"', {IN=>"a\tb\tc"}, {OUT=>"a b c"}],
# Input field wider than the specified tab list
['if', '--tabs=6,9', {IN=>"a\tbbbbbbbbbbbbb\tc"},
{OUT=>"a bbbbbbbbbbbbb c"}],
['i1', '--tabs=3 -i', {IN=>"\ta\tb"}, {OUT=>" a\tb"}],
['i2', '--tabs=3 -i', {IN=>" \ta\tb"}, {OUT=>" a\tb"}],
# Undocumented feature:
# treat "expand -7" as "expand --tabs 7" ,
# and "expand -90" as "expand --tabs 90",
['u1', '-3', {IN=>"a\tb\tc"}, {OUT=>"a b c"}],
['u2', '-4 -9', {IN=>"a\tb\tc"}, {OUT=>"a b c"}],
['u3', '-11', {IN=>"a\tb\tc"}, {OUT=>"a b c"}],
# Test all digits (for full code coverage)
['u4', '-2 -6', {IN=>"a\tb\tc"}, {OUT=>"a b c"}],
['u5', '-7', {IN=>"a\tb"}, {OUT=>"a b"}],
['u6', '-8', {IN=>"a\tb"}, {OUT=>"a b"}],
# This syntax is handled internally as "-3, -9"
['u7', '-3,9', {IN=>"a\tb\tc"}, {OUT=>"a b c"}],
# Multiple non-empty files
['f1', '--tabs=4',
{IN=>{"in1" => "a\tb\n"}}, {IN=>{"in2" => "c\td\n"}},
{OUT=>"a b\nc d\n"}],
# Multiple files, first file is empty
['f2', '--tabs=4',
{IN=>{"in1" => ""}}, {IN=>{"in2" => "c\td\n"}},
{OUT=>"c d\n"}],
# Multiple files, second file is empty
['f3', '--tabs=4',
{IN=>{"in1" => "a\tb\n"}}, {IN=>{"in2" => ""}},
{OUT=>"a b\n"}],
# Test '\b' (back-space) - subtract one column.
#
# Note:
# In a terminal window, 'expand' will appear to erase the 'a' characters
# due to overwriting them with spaces:
#
# $ printf 'aaa\b\b\bc\td\n'
# caa d
# $ printf 'aaa\b\b\bc\td\n' | expand
# c d
#
# However the characters are all printed:
#
# $ printf 'aaa\b\b\bc\td\n' | expand | od -An -ta
# a a a bs bs bs c sp sp sp sp sp sp sp d nl
#
# If users ever report a problem with these tests and just
# copy&paste from the terminal, their report will be confusing
# (the 'a' will not appear).
#
# To see an example, enable the 'b-confusing' test, and examine the
# reported log:
#
# expand.pl: test b-confusing: stdout mismatch
# *** b-confusing.2 Fri Jun 24 15:43:21 2016
# --- b-confusing.O Fri Jun 24 15:43:21 2016
# ***************
# *** 1 ****
# ! c d
# --- 1 ----
# ! c d
#
# ['b-confusing','', {IN=>"aaa\b\b\bc\td\n"}, {OUT=>"c d\n"}],
['b1','', {IN=>"aaa\b\b\bc\td\n"}, {OUT=>"aaa\b\b\bc d\n"}],
# \b as first character, when column is zero
['b2','', {IN=>"\bc\td"}, {OUT=>"\bc d"}],
# Testing tab list adjusted due to backspaces
# ('b3' is the baseline without backspaces).
['b3','--tabs 2,4,6,10',
{IN=>"1\t2\t3\t4\t5\n" .
"a\tb\tc\td\te\n"},
{OUT=>"1 2 3 4 5\n" .
"a b c d e\n"}],
# On screen this will appear the same as 'b3'
['b4','--tabs 2,4,6,10',
{IN=>"1\t2\t3\t4\t5\n" .
"a\tbHELLO\b\b\b\b\b\tc\td\te\n"},
{OUT=>"1 2 3 4 5\n" .
"a bHELLO\b\b\b\b\b c d e\n"}],
# On screen on 'bHE' will appear (LLO overwritten by spaces),
# 'c' should align with 4, 'd' with 5:
# 1 2 3 4 5
# a bHE c d e
['b5','--tabs 2,4,6,10',
{IN=>"1\t2\t3\t4\t5\n" .
"a\tbHELLO\b\b\b\tc\td\te\n"},
{OUT=>"1 2 3 4 5\n" .
"a bHELLO\b\b\b c d e\n"}],
# Test the trailing '/' feature which specifies the
# tab size to use after the last specified stop
['trail1', '--tabs=1,/5', {IN=>"\ta\tb\tc"}, {OUT=>" a b c"}],
['trail2', '--tabs=2,/5', {IN=>"\ta\tb\tc"}, {OUT=>" a b c"}],
['trail3', '--tabs=1,2,/5', {IN=>"\ta\tb\tc"}, {OUT=>" a b c"}],
['trail4', '--tabs=/5', {IN=>"\ta\tb"}, {OUT=>" a b"}],
['trail5', '--tabs=//5', {IN=>"\ta\tb"}, {OUT=>" a b"}],
['trail5a','--tabs=+/5', {IN=>"\ta\tb"}, {OUT=>" a b"}],
['trail6', '--tabs=/,/5', {IN=>"\ta\tb"}, {OUT=>" a b"}],
['trail7', '--tabs=,/5', {IN=>"\ta\tb"}, {OUT=>" a b"}],
['trail8', '--tabs=1 -t/5', {IN=>"\ta\tb\tc"}, {OUT=>" a b c"}],
['trail9', '--tab=1,2 -t/5',{IN=>"\ta\tb\tc"}, {OUT=>" a b c"}],
# Test incremental trailing '+' feature which specifies that
# tab stops should continue every increment
['incre0', '--tab=1,+5', {IN=>"+\t\ta\tb"}, {OUT=>"+ a b"}],
['incre1', '--tabs=1,+5', {IN=>"\ta\tb\tc"}, {OUT=>" a b c"}],
['incre2', '--tabs=2,+5', {IN=>"\ta\tb\tc"}, {OUT=>" a b c"}],
['incre3', '--tabs=1,2,+5', {IN=>"\ta\tb\tc"}, {OUT=>" a b c"}],
['incre4', '--tabs=+5', {IN=>"\ta\tb"}, {OUT=>" a b"}],
['incre5', '--tabs=++5', {IN=>"\ta\tb"}, {OUT=>" a b"}],
['incre5a','--tabs=/+5', {IN=>"\ta\tb"}, {OUT=>" a b"}],
['incre6', '--tabs=+,+5', {IN=>"\ta\tb"}, {OUT=>" a b"}],
['incre7', '--tabs=,+5', {IN=>"\ta\tb"}, {OUT=>" a b"}],
['incre8', '--tabs=1 -t+5', {IN=>"\ta\tb\tc"}, {OUT=>" a b c"}],
['incre9', '--tab=1,2 -t+5',{IN=>"\ta\tb\tc"}, {OUT=>" a b c"}],
# Test errors
['e1', '--tabs="a"', {IN=>''}, {OUT=>''}, {EXIT=>1},
{ERR => "$prog: tab size contains invalid character(s): 'a'\n"}],
['e2', "-t $UINTMAX_OFLOW", {IN=>''}, {OUT=>''}, {EXIT=>1},
{ERR => "$prog: tab stop is too large '$UINTMAX_OFLOW'\n"}],
['e3', '--tabs=0', {IN=>''}, {OUT=>''}, {EXIT=>1},
{ERR => "$prog: tab size cannot be 0\n"}],
['e4', '--tabs=3,3', {IN=>''}, {OUT=>''}, {EXIT=>1},
{ERR => "$prog: tab sizes must be ascending\n"}],
['e5', '--tabs=/3,6,8', {IN=>''}, {OUT=>''}, {EXIT=>1},
{ERR => "$prog: '/' specifier only allowed with the last value\n"}],
['e6', '-t/3 -t/6', {IN=>''}, {OUT=>''}, {EXIT=>1},
{ERR => "$prog: '/' specifier only allowed with the last value\n"}],
['e7', '--tabs=3/', {IN=>''}, {OUT=>''}, {EXIT=>1},
{ERR => "$prog: '/' specifier not at start of number: '/'\n"}],
);
my $save_temps = $ENV{DEBUG};
my $verbose = $ENV{VERBOSE};
my $fail = run_tests ($program_name, $prog, \@Tests, $save_temps, $verbose);
exit $fail;
|
