Commit | Line | Data |
55b67815 |
1 | #!./perl |
84902520 |
2 | |
3 | #P = start of string Q = start of substr R = end of substr S = end of string |
a687059c |
4 | |
e476b1b5 |
5 | BEGIN { |
3aa33fe5 |
6 | chdir 't' if -d 't'; |
20822f61 |
7 | @INC = '../lib'; |
e476b1b5 |
8 | } |
9 | use warnings ; |
55b67815 |
10 | no warnings 'deprecated'; |
84902520 |
11 | |
e476b1b5 |
12 | $a = 'abcdefxyz'; |
84902520 |
13 | $SIG{__WARN__} = sub { |
14 | if ($_[0] =~ /^substr outside of string/) { |
15 | $w++; |
16 | } elsif ($_[0] =~ /^Attempt to use reference as lvalue in substr/) { |
17 | $w += 2; |
5d82c453 |
18 | } elsif ($_[0] =~ /^Use of uninitialized value/) { |
19 | $w += 3; |
84902520 |
20 | } else { |
5d82c453 |
21 | warn $_[0]; |
84902520 |
22 | } |
23 | }; |
a687059c |
24 | |
e198f039 |
25 | require './test.pl'; |
26 | |
27 | plan(334); |
e476b1b5 |
28 | |
e3faa678 |
29 | run_tests() unless caller; |
30 | |
31 | my $krunch = "a"; |
32 | |
33 | sub run_tests { |
34 | |
e198f039 |
35 | $FATAL_MSG = qr/^substr outside of string/; |
84902520 |
36 | |
e198f039 |
37 | is(substr($a,0,3), 'abc'); # P=Q R S |
38 | is(substr($a,3,3), 'def'); # P Q R S |
39 | is(substr($a,6,999), 'xyz'); # P Q S R |
e476b1b5 |
40 | $b = substr($a,999,999) ; # warn # P R Q S |
e198f039 |
41 | is ($w--, 1); |
e476b1b5 |
42 | eval{substr($a,999,999) = "" ; };# P R Q S |
e198f039 |
43 | like ($@, $FATAL_MSG); |
44 | is(substr($a,0,-6), 'abc'); # P=Q R S |
45 | is(substr($a,-3,1), 'x'); # P Q R S |
a687059c |
46 | |
47 | $[ = 1; |
48 | |
e198f039 |
49 | is(substr($a,1,3), 'abc' ); # P=Q R S |
50 | is(substr($a,4,3), 'def' ); # P Q R S |
51 | is(substr($a,7,999), 'xyz');# P Q S R |
e476b1b5 |
52 | $b = substr($a,999,999) ; # warn # P R Q S |
e198f039 |
53 | is($w--, 1); |
e476b1b5 |
54 | eval{substr($a,999,999) = "" ; } ; # P R Q S |
e198f039 |
55 | like ($@, $FATAL_MSG); |
56 | is(substr($a,1,-6), 'abc' );# P=Q R S |
57 | is(substr($a,-3,1), 'x' ); # P Q R S |
a687059c |
58 | |
59 | $[ = 0; |
60 | |
61 | substr($a,3,3) = 'XYZ'; |
e198f039 |
62 | is($a, 'abcXYZxyz' ); |
a687059c |
63 | substr($a,0,2) = ''; |
e198f039 |
64 | is($a, 'cXYZxyz' ); |
a687059c |
65 | substr($a,0,0) = 'ab'; |
e198f039 |
66 | is($a, 'abcXYZxyz' ); |
a687059c |
67 | substr($a,0,0) = '12345678'; |
e198f039 |
68 | is($a, '12345678abcXYZxyz' ); |
a687059c |
69 | substr($a,-3,3) = 'def'; |
e198f039 |
70 | is($a, '12345678abcXYZdef'); |
a687059c |
71 | substr($a,-3,3) = '<'; |
e198f039 |
72 | is($a, '12345678abcXYZ<' ); |
a687059c |
73 | substr($a,-1,1) = '12345678'; |
e198f039 |
74 | is($a, '12345678abcXYZ12345678' ); |
a687059c |
75 | |
d9d8d8de |
76 | $a = 'abcdefxyz'; |
77 | |
e198f039 |
78 | is(substr($a,6), 'xyz' ); # P Q R=S |
79 | is(substr($a,-3), 'xyz' ); # P Q R=S |
e476b1b5 |
80 | $b = substr($a,999,999) ; # warning # P R=S Q |
e198f039 |
81 | is($w--, 1); |
e476b1b5 |
82 | eval{substr($a,999,999) = "" ; } ; # P R=S Q |
e198f039 |
83 | like($@, $FATAL_MSG); |
84 | is(substr($a,0), 'abcdefxyz'); # P=Q R=S |
85 | is(substr($a,9), ''); # P Q=R=S |
86 | is(substr($a,-11), 'abcdefxyz'); # Q P R=S |
87 | is(substr($a,-9), 'abcdefxyz'); # P=Q R=S |
84902520 |
88 | |
89 | $a = '54321'; |
90 | |
e476b1b5 |
91 | $b = substr($a,-7, 1) ; # warn # Q R P S |
e198f039 |
92 | is($w--, 1); |
e476b1b5 |
93 | eval{substr($a,-7, 1) = "" ; }; # Q R P S |
e198f039 |
94 | like($@, $FATAL_MSG); |
e476b1b5 |
95 | $b = substr($a,-7,-6) ; # warn # Q R P S |
e198f039 |
96 | is($w--, 1); |
e476b1b5 |
97 | eval{substr($a,-7,-6) = "" ; }; # Q R P S |
e198f039 |
98 | like($@, $FATAL_MSG); |
99 | is(substr($a,-5,-7), ''); # R P=Q S |
100 | is(substr($a, 2,-7), ''); # R P Q S |
101 | is(substr($a,-3,-7), ''); # R P Q S |
102 | is(substr($a, 2,-5), ''); # P=R Q S |
103 | is(substr($a,-3,-5), ''); # P=R Q S |
104 | is(substr($a, 2,-4), ''); # P R Q S |
105 | is(substr($a,-3,-4), ''); # P R Q S |
106 | is(substr($a, 5,-6), ''); # R P Q=S |
107 | is(substr($a, 5,-5), ''); # P=R Q S |
108 | is(substr($a, 5,-3), ''); # P R Q=S |
e476b1b5 |
109 | $b = substr($a, 7,-7) ; # warn # R P S Q |
e198f039 |
110 | is($w--, 1); |
e476b1b5 |
111 | eval{substr($a, 7,-7) = "" ; }; # R P S Q |
e198f039 |
112 | like($@, $FATAL_MSG); |
e476b1b5 |
113 | $b = substr($a, 7,-5) ; # warn # P=R S Q |
e198f039 |
114 | is($w--, 1); |
e476b1b5 |
115 | eval{substr($a, 7,-5) = "" ; }; # P=R S Q |
e198f039 |
116 | like($@, $FATAL_MSG); |
e476b1b5 |
117 | $b = substr($a, 7,-3) ; # warn # P Q S Q |
e198f039 |
118 | is($w--, 1); |
e476b1b5 |
119 | eval{substr($a, 7,-3) = "" ; }; # P Q S Q |
e198f039 |
120 | like($@, $FATAL_MSG); |
e476b1b5 |
121 | $b = substr($a, 7, 0) ; # warn # P S Q=R |
e198f039 |
122 | is($w--, 1); |
e476b1b5 |
123 | eval{substr($a, 7, 0) = "" ; }; # P S Q=R |
e198f039 |
124 | like($@, $FATAL_MSG); |
125 | |
126 | is(substr($a,-7,2), ''); # Q P=R S |
127 | is(substr($a,-7,4), '54'); # Q P R S |
128 | is(substr($a,-7,7), '54321');# Q P R=S |
129 | is(substr($a,-7,9), '54321');# Q P S R |
130 | is(substr($a,-5,0), ''); # P=Q=R S |
131 | is(substr($a,-5,3), '543');# P=Q R S |
132 | is(substr($a,-5,5), '54321');# P=Q R=S |
133 | is(substr($a,-5,7), '54321');# P=Q S R |
134 | is(substr($a,-3,0), ''); # P Q=R S |
135 | is(substr($a,-3,3), '321');# P Q R=S |
136 | is(substr($a,-2,3), '21'); # P Q S R |
137 | is(substr($a,0,-5), ''); # P=Q=R S |
138 | is(substr($a,2,-3), ''); # P Q=R S |
139 | is(substr($a,0,0), ''); # P=Q=R S |
140 | is(substr($a,0,5), '54321');# P=Q R=S |
141 | is(substr($a,0,7), '54321');# P=Q S R |
142 | is(substr($a,2,0), ''); # P Q=R S |
143 | is(substr($a,2,3), '321'); # P Q R=S |
144 | is(substr($a,5,0), ''); # P Q=R=S |
145 | is(substr($a,5,2), ''); # P Q=S R |
146 | is(substr($a,-7,-5), ''); # Q P=R S |
147 | is(substr($a,-7,-2), '543');# Q P R S |
148 | is(substr($a,-5,-5), ''); # P=Q=R S |
149 | is(substr($a,-5,-2), '543');# P=Q R S |
150 | is(substr($a,-3,-3), ''); # P Q=R S |
151 | is(substr($a,-3,-1), '32');# P Q R S |
84902520 |
152 | |
153 | $a = ''; |
154 | |
e198f039 |
155 | is(substr($a,-2,2), ''); # Q P=R=S |
156 | is(substr($a,0,0), ''); # P=Q=R=S |
157 | is(substr($a,0,1), ''); # P=Q=S R |
158 | is(substr($a,-2,3), ''); # Q P=S R |
159 | is(substr($a,-2), ''); # Q P=R=S |
160 | is(substr($a,0), ''); # P=Q=R=S |
e476b1b5 |
161 | |
162 | |
e198f039 |
163 | is(substr($a,0,-1), ''); # R P=Q=S |
e476b1b5 |
164 | $b = substr($a,-2, 0) ; # warn # Q=R P=S |
e198f039 |
165 | is($w--, 1); |
e476b1b5 |
166 | eval{substr($a,-2, 0) = "" ; }; # Q=R P=S |
e198f039 |
167 | like($@, $FATAL_MSG); |
84902520 |
168 | |
e476b1b5 |
169 | $b = substr($a,-2, 1) ; # warn # Q R P=S |
e198f039 |
170 | is($w--, 1); |
e476b1b5 |
171 | eval{substr($a,-2, 1) = "" ; }; # Q R P=S |
e198f039 |
172 | like($@, $FATAL_MSG); |
84902520 |
173 | |
e476b1b5 |
174 | $b = substr($a,-2,-1) ; # warn # Q R P=S |
e198f039 |
175 | is($w--, 1); |
e476b1b5 |
176 | eval{substr($a,-2,-1) = "" ; }; # Q R P=S |
e198f039 |
177 | like($@, $FATAL_MSG); |
84902520 |
178 | |
e476b1b5 |
179 | $b = substr($a,-2,-2) ; # warn # Q=R P=S |
e198f039 |
180 | is($w--, 1); |
e476b1b5 |
181 | eval{substr($a,-2,-2) = "" ; }; # Q=R P=S |
e198f039 |
182 | like($@, $FATAL_MSG); |
e476b1b5 |
183 | |
184 | $b = substr($a, 1,-2) ; # warn # R P=S Q |
e198f039 |
185 | is($w--, 1); |
e476b1b5 |
186 | eval{substr($a, 1,-2) = "" ; }; # R P=S Q |
e198f039 |
187 | like($@, $FATAL_MSG); |
e476b1b5 |
188 | |
189 | $b = substr($a, 1, 1) ; # warn # P=S Q R |
e198f039 |
190 | is($w--, 1); |
e476b1b5 |
191 | eval{substr($a, 1, 1) = "" ; }; # P=S Q R |
e198f039 |
192 | like($@, $FATAL_MSG); |
e476b1b5 |
193 | |
194 | $b = substr($a, 1, 0) ;# warn # P=S Q=R |
e198f039 |
195 | is($w--, 1); |
e476b1b5 |
196 | eval{substr($a, 1, 0) = "" ; }; # P=S Q=R |
e198f039 |
197 | like($@, $FATAL_MSG); |
e476b1b5 |
198 | |
199 | $b = substr($a,1) ; # warning # P=R=S Q |
e198f039 |
200 | is($w--, 1); |
e476b1b5 |
201 | eval{substr($a,1) = "" ; }; # P=R=S Q |
e198f039 |
202 | like($@, $FATAL_MSG); |
84902520 |
203 | |
204 | my $a = 'zxcvbnm'; |
205 | substr($a,2,0) = ''; |
e198f039 |
206 | is($a, 'zxcvbnm'); |
84902520 |
207 | substr($a,7,0) = ''; |
e198f039 |
208 | is($a, 'zxcvbnm'); |
84902520 |
209 | substr($a,5,0) = ''; |
e198f039 |
210 | is($a, 'zxcvbnm'); |
84902520 |
211 | substr($a,0,2) = 'pq'; |
e198f039 |
212 | is($a, 'pqcvbnm'); |
84902520 |
213 | substr($a,2,0) = 'r'; |
e198f039 |
214 | is($a, 'pqrcvbnm'); |
84902520 |
215 | substr($a,8,0) = 'asd'; |
e198f039 |
216 | is($a, 'pqrcvbnmasd'); |
84902520 |
217 | substr($a,0,2) = 'iop'; |
e198f039 |
218 | is($a, 'ioprcvbnmasd'); |
84902520 |
219 | substr($a,0,5) = 'fgh'; |
e198f039 |
220 | is($a, 'fghvbnmasd'); |
84902520 |
221 | substr($a,3,5) = 'jkl'; |
e198f039 |
222 | is($a, 'fghjklsd'); |
84902520 |
223 | substr($a,3,2) = '1234'; |
e198f039 |
224 | is($a, 'fgh1234lsd'); |
84902520 |
225 | |
08cb0b0d |
226 | |
227 | # with lexicals (and in re-entered scopes) |
228 | for (0,1) { |
229 | my $txt; |
230 | unless ($_) { |
231 | $txt = "Foo"; |
232 | substr($txt, -1) = "X"; |
e198f039 |
233 | is($txt, "FoX"); |
08cb0b0d |
234 | } |
235 | else { |
236 | substr($txt, 0, 1) = "X"; |
e198f039 |
237 | is($txt, "X"); |
08cb0b0d |
238 | } |
239 | } |
240 | |
e476b1b5 |
241 | $w = 0 ; |
84902520 |
242 | # coercion of references |
08cb0b0d |
243 | { |
244 | my $s = []; |
245 | substr($s, 0, 1) = 'Foo'; |
e198f039 |
246 | is (substr($s,0,7), "FooRRAY"); |
247 | is ($w,2); |
248 | $w = 0; |
08cb0b0d |
249 | } |
84902520 |
250 | |
251 | # check no spurious warnings |
e198f039 |
252 | is($w, 0); |
7b8d334a |
253 | |
5d82c453 |
254 | # check new 4 arg replacement syntax |
7b8d334a |
255 | $a = "abcxyz"; |
5d82c453 |
256 | $w = 0; |
e198f039 |
257 | is(substr($a, 0, 3, ""), "abc"); |
258 | is($a, "xyz"); |
259 | is(substr($a, 0, 0, "abc"), ""); |
260 | is($a, "abcxyz"); |
261 | is(substr($a, 3, -1, ""), "xy"); |
262 | is($a, "abcz"); |
e476b1b5 |
263 | |
e198f039 |
264 | is(substr($a, 3, undef, "xy"), ""); |
265 | is($a, "abcxyz"); |
266 | is($w, 3); |
e476b1b5 |
267 | |
5d82c453 |
268 | $w = 0; |
269 | |
e198f039 |
270 | is(substr($a, 3, 9999999, ""), "xyz"); |
271 | is($a, "abc"); |
e476b1b5 |
272 | eval{substr($a, -99, 0, "") }; |
e198f039 |
273 | like($@, $FATAL_MSG); |
e476b1b5 |
274 | eval{substr($a, 99, 3, "") }; |
e198f039 |
275 | like($@, $FATAL_MSG); |
5d82c453 |
276 | |
277 | substr($a, 0, length($a), "foo"); |
e198f039 |
278 | is ($a, "foo"); |
279 | is ($w, 0); |
5d82c453 |
280 | |
281 | # using 4 arg substr as lvalue is a compile time error |
282 | eval 'substr($a,0,0,"") = "abc"'; |
e198f039 |
283 | like ($@, qr/Can't modify substr/); |
284 | is ($a, "foo"); |
c8faf1c5 |
285 | |
286 | $a = "abcdefgh"; |
e198f039 |
287 | is(sub { shift }->(substr($a, 0, 4, "xxxx")), 'abcd'); |
288 | is($a, 'xxxxefgh'); |
7f66633b |
289 | |
e84ff256 |
290 | { |
291 | my $y = 10; |
292 | $y = "2" . $y; |
e198f039 |
293 | is ($y, 210); |
e84ff256 |
294 | } |
295 | |
7f66633b |
296 | # utf8 sanity |
297 | { |
298 | my $x = substr("a\x{263a}b",0); |
e198f039 |
299 | is(length($x), 3); |
7f66633b |
300 | $x = substr($x,1,1); |
e198f039 |
301 | is($x, "\x{263a}"); |
dfcb284a |
302 | $x = $x x 2; |
e198f039 |
303 | is(length($x), 2); |
7f66633b |
304 | substr($x,0,1) = "abcd"; |
e198f039 |
305 | is($x, "abcd\x{263a}"); |
306 | is(length($x), 5); |
e84ff256 |
307 | $x = reverse $x; |
e198f039 |
308 | is(length($x), 5); |
309 | is($x, "\x{263a}dcba"); |
e84ff256 |
310 | |
311 | my $z = 10; |
312 | $z = "21\x{263a}" . $z; |
e198f039 |
313 | is(length($z), 5); |
314 | is($z, "21\x{263a}10"); |
7f66633b |
315 | } |
35fba0d9 |
316 | |
317 | # replacement should work on magical values |
318 | require Tie::Scalar; |
319 | my %data; |
320 | tie $data{'a'}, 'Tie::StdScalar'; # makes $data{'a'} magical |
321 | $data{a} = "firstlast"; |
e198f039 |
322 | is(substr($data{'a'}, 0, 5, ""), "first"); |
323 | is($data{'a'}, "last"); |
075a4a2b |
324 | |
325 | # more utf8 |
326 | |
327 | # The following two originally from Ignasi Roca. |
328 | |
329 | $x = "\xF1\xF2\xF3"; |
330 | substr($x, 0, 1) = "\x{100}"; # Ignasi had \x{FF} |
e198f039 |
331 | is(length($x), 3); |
332 | is($x, "\x{100}\xF2\xF3"); |
333 | is(substr($x, 0, 1), "\x{100}"); |
334 | is(substr($x, 1, 1), "\x{F2}"); |
335 | is(substr($x, 2, 1), "\x{F3}"); |
075a4a2b |
336 | |
337 | $x = "\xF1\xF2\xF3"; |
338 | substr($x, 0, 1) = "\x{100}\x{FF}"; # Ignasi had \x{FF} |
e198f039 |
339 | is(length($x), 4); |
340 | is($x, "\x{100}\x{FF}\xF2\xF3"); |
341 | is(substr($x, 0, 1), "\x{100}"); |
342 | is(substr($x, 1, 1), "\x{FF}"); |
343 | is(substr($x, 2, 1), "\x{F2}"); |
344 | is(substr($x, 3, 1), "\x{F3}"); |
075a4a2b |
345 | |
346 | # more utf8 lval exercise |
347 | |
348 | $x = "\xF1\xF2\xF3"; |
349 | substr($x, 0, 2) = "\x{100}\xFF"; |
e198f039 |
350 | is(length($x), 3); |
351 | is($x, "\x{100}\xFF\xF3"); |
352 | is(substr($x, 0, 1), "\x{100}"); |
353 | is(substr($x, 1, 1), "\x{FF}"); |
354 | is(substr($x, 2, 1), "\x{F3}"); |
075a4a2b |
355 | |
356 | $x = "\xF1\xF2\xF3"; |
357 | substr($x, 1, 1) = "\x{100}\xFF"; |
e198f039 |
358 | is(length($x), 4); |
359 | is($x, "\xF1\x{100}\xFF\xF3"); |
360 | is(substr($x, 0, 1), "\x{F1}"); |
361 | is(substr($x, 1, 1), "\x{100}"); |
362 | is(substr($x, 2, 1), "\x{FF}"); |
363 | is(substr($x, 3, 1), "\x{F3}"); |
075a4a2b |
364 | |
365 | $x = "\xF1\xF2\xF3"; |
366 | substr($x, 2, 1) = "\x{100}\xFF"; |
e198f039 |
367 | is(length($x), 4); |
368 | is($x, "\xF1\xF2\x{100}\xFF"); |
369 | is(substr($x, 0, 1), "\x{F1}"); |
370 | is(substr($x, 1, 1), "\x{F2}"); |
371 | is(substr($x, 2, 1), "\x{100}"); |
372 | is(substr($x, 3, 1), "\x{FF}"); |
075a4a2b |
373 | |
374 | $x = "\xF1\xF2\xF3"; |
375 | substr($x, 3, 1) = "\x{100}\xFF"; |
e198f039 |
376 | is(length($x), 5); |
377 | is($x, "\xF1\xF2\xF3\x{100}\xFF"); |
378 | is(substr($x, 0, 1), "\x{F1}"); |
379 | is(substr($x, 1, 1), "\x{F2}"); |
380 | is(substr($x, 2, 1), "\x{F3}"); |
381 | is(substr($x, 3, 1), "\x{100}"); |
382 | is(substr($x, 4, 1), "\x{FF}"); |
075a4a2b |
383 | |
384 | $x = "\xF1\xF2\xF3"; |
385 | substr($x, -1, 1) = "\x{100}\xFF"; |
e198f039 |
386 | is(length($x), 4); |
387 | is($x, "\xF1\xF2\x{100}\xFF"); |
388 | is(substr($x, 0, 1), "\x{F1}"); |
389 | is(substr($x, 1, 1), "\x{F2}"); |
390 | is(substr($x, 2, 1), "\x{100}"); |
391 | is(substr($x, 3, 1), "\x{FF}"); |
075a4a2b |
392 | |
393 | $x = "\xF1\xF2\xF3"; |
394 | substr($x, -1, 0) = "\x{100}\xFF"; |
e198f039 |
395 | is(length($x), 5); |
396 | is($x, "\xF1\xF2\x{100}\xFF\xF3"); |
397 | is(substr($x, 0, 1), "\x{F1}"); |
398 | is(substr($x, 1, 1), "\x{F2}"); |
399 | is(substr($x, 2, 1), "\x{100}"); |
400 | is(substr($x, 3, 1), "\x{FF}"); |
401 | is(substr($x, 4, 1), "\x{F3}"); |
075a4a2b |
402 | |
403 | $x = "\xF1\xF2\xF3"; |
404 | substr($x, 0, -1) = "\x{100}\xFF"; |
e198f039 |
405 | is(length($x), 3); |
406 | is($x, "\x{100}\xFF\xF3"); |
407 | is(substr($x, 0, 1), "\x{100}"); |
408 | is(substr($x, 1, 1), "\x{FF}"); |
409 | is(substr($x, 2, 1), "\x{F3}"); |
075a4a2b |
410 | |
411 | $x = "\xF1\xF2\xF3"; |
412 | substr($x, 0, -2) = "\x{100}\xFF"; |
e198f039 |
413 | is(length($x), 4); |
414 | is($x, "\x{100}\xFF\xF2\xF3"); |
415 | is(substr($x, 0, 1), "\x{100}"); |
416 | is(substr($x, 1, 1), "\x{FF}"); |
417 | is(substr($x, 2, 1), "\x{F2}"); |
418 | is(substr($x, 3, 1), "\x{F3}"); |
075a4a2b |
419 | |
420 | $x = "\xF1\xF2\xF3"; |
421 | substr($x, 0, -3) = "\x{100}\xFF"; |
e198f039 |
422 | is(length($x), 5); |
423 | is($x, "\x{100}\xFF\xF1\xF2\xF3"); |
424 | is(substr($x, 0, 1), "\x{100}"); |
425 | is(substr($x, 1, 1), "\x{FF}"); |
426 | is(substr($x, 2, 1), "\x{F1}"); |
427 | is(substr($x, 3, 1), "\x{F2}"); |
428 | is(substr($x, 4, 1), "\x{F3}"); |
075a4a2b |
429 | |
430 | $x = "\xF1\xF2\xF3"; |
431 | substr($x, 1, -1) = "\x{100}\xFF"; |
e198f039 |
432 | is(length($x), 4); |
433 | is($x, "\xF1\x{100}\xFF\xF3"); |
434 | is(substr($x, 0, 1), "\x{F1}"); |
435 | is(substr($x, 1, 1), "\x{100}"); |
436 | is(substr($x, 2, 1), "\x{FF}"); |
437 | is(substr($x, 3, 1), "\x{F3}"); |
075a4a2b |
438 | |
439 | $x = "\xF1\xF2\xF3"; |
440 | substr($x, -1, -1) = "\x{100}\xFF"; |
e198f039 |
441 | is(length($x), 5); |
442 | is($x, "\xF1\xF2\x{100}\xFF\xF3"); |
443 | is(substr($x, 0, 1), "\x{F1}"); |
444 | is(substr($x, 1, 1), "\x{F2}"); |
445 | is(substr($x, 2, 1), "\x{100}"); |
446 | is(substr($x, 3, 1), "\x{FF}"); |
447 | is(substr($x, 4, 1), "\x{F3}"); |
075a4a2b |
448 | |
9aa983d2 |
449 | # And tests for already-UTF8 one |
450 | |
451 | $x = "\x{101}\x{F2}\x{F3}"; |
452 | substr($x, 0, 1) = "\x{100}"; |
e198f039 |
453 | is(length($x), 3); |
454 | is($x, "\x{100}\xF2\xF3"); |
455 | is(substr($x, 0, 1), "\x{100}"); |
456 | is(substr($x, 1, 1), "\x{F2}"); |
457 | is(substr($x, 2, 1), "\x{F3}"); |
9aa983d2 |
458 | |
459 | $x = "\x{101}\x{F2}\x{F3}"; |
460 | substr($x, 0, 1) = "\x{100}\x{FF}"; |
e198f039 |
461 | is(length($x), 4); |
462 | is($x, "\x{100}\x{FF}\xF2\xF3"); |
463 | is(substr($x, 0, 1), "\x{100}"); |
464 | is(substr($x, 1, 1), "\x{FF}"); |
465 | is(substr($x, 2, 1), "\x{F2}"); |
466 | is(substr($x, 3, 1), "\x{F3}"); |
9aa983d2 |
467 | |
468 | $x = "\x{101}\x{F2}\x{F3}"; |
469 | substr($x, 0, 2) = "\x{100}\xFF"; |
e198f039 |
470 | is(length($x), 3); |
471 | is($x, "\x{100}\xFF\xF3"); |
472 | is(substr($x, 0, 1), "\x{100}"); |
473 | is(substr($x, 1, 1), "\x{FF}"); |
474 | is(substr($x, 2, 1), "\x{F3}"); |
9aa983d2 |
475 | |
476 | $x = "\x{101}\x{F2}\x{F3}"; |
477 | substr($x, 1, 1) = "\x{100}\xFF"; |
e198f039 |
478 | is(length($x), 4); |
479 | is($x, "\x{101}\x{100}\xFF\xF3"); |
480 | is(substr($x, 0, 1), "\x{101}"); |
481 | is(substr($x, 1, 1), "\x{100}"); |
482 | is(substr($x, 2, 1), "\x{FF}"); |
483 | is(substr($x, 3, 1), "\x{F3}"); |
9aa983d2 |
484 | |
485 | $x = "\x{101}\x{F2}\x{F3}"; |
486 | substr($x, 2, 1) = "\x{100}\xFF"; |
e198f039 |
487 | is(length($x), 4); |
488 | is($x, "\x{101}\xF2\x{100}\xFF"); |
489 | is(substr($x, 0, 1), "\x{101}"); |
490 | is(substr($x, 1, 1), "\x{F2}"); |
491 | is(substr($x, 2, 1), "\x{100}"); |
492 | is(substr($x, 3, 1), "\x{FF}"); |
9aa983d2 |
493 | |
494 | $x = "\x{101}\x{F2}\x{F3}"; |
495 | substr($x, 3, 1) = "\x{100}\xFF"; |
e198f039 |
496 | is(length($x), 5); |
497 | is($x, "\x{101}\x{F2}\x{F3}\x{100}\xFF"); |
498 | is(substr($x, 0, 1), "\x{101}"); |
499 | is(substr($x, 1, 1), "\x{F2}"); |
500 | is(substr($x, 2, 1), "\x{F3}"); |
501 | is(substr($x, 3, 1), "\x{100}"); |
502 | is(substr($x, 4, 1), "\x{FF}"); |
9aa983d2 |
503 | |
504 | $x = "\x{101}\x{F2}\x{F3}"; |
505 | substr($x, -1, 1) = "\x{100}\xFF"; |
e198f039 |
506 | is(length($x), 4); |
507 | is($x, "\x{101}\xF2\x{100}\xFF"); |
508 | is(substr($x, 0, 1), "\x{101}"); |
509 | is(substr($x, 1, 1), "\x{F2}"); |
510 | is(substr($x, 2, 1), "\x{100}"); |
511 | is(substr($x, 3, 1), "\x{FF}"); |
9aa983d2 |
512 | |
513 | $x = "\x{101}\x{F2}\x{F3}"; |
514 | substr($x, -1, 0) = "\x{100}\xFF"; |
e198f039 |
515 | is(length($x), 5); |
516 | is($x, "\x{101}\xF2\x{100}\xFF\xF3"); |
517 | is(substr($x, 0, 1), "\x{101}"); |
518 | is(substr($x, 1, 1), "\x{F2}"); |
519 | is(substr($x, 2, 1), "\x{100}"); |
520 | is(substr($x, 3, 1), "\x{FF}"); |
521 | is(substr($x, 4, 1), "\x{F3}"); |
9aa983d2 |
522 | |
523 | $x = "\x{101}\x{F2}\x{F3}"; |
524 | substr($x, 0, -1) = "\x{100}\xFF"; |
e198f039 |
525 | is(length($x), 3); |
526 | is($x, "\x{100}\xFF\xF3"); |
527 | is(substr($x, 0, 1), "\x{100}"); |
528 | is(substr($x, 1, 1), "\x{FF}"); |
529 | is(substr($x, 2, 1), "\x{F3}"); |
9aa983d2 |
530 | |
531 | $x = "\x{101}\x{F2}\x{F3}"; |
532 | substr($x, 0, -2) = "\x{100}\xFF"; |
e198f039 |
533 | is(length($x), 4); |
534 | is($x, "\x{100}\xFF\xF2\xF3"); |
535 | is(substr($x, 0, 1), "\x{100}"); |
536 | is(substr($x, 1, 1), "\x{FF}"); |
537 | is(substr($x, 2, 1), "\x{F2}"); |
538 | is(substr($x, 3, 1), "\x{F3}"); |
9aa983d2 |
539 | |
540 | $x = "\x{101}\x{F2}\x{F3}"; |
541 | substr($x, 0, -3) = "\x{100}\xFF"; |
e198f039 |
542 | is(length($x), 5); |
543 | is($x, "\x{100}\xFF\x{101}\x{F2}\x{F3}"); |
544 | is(substr($x, 0, 1), "\x{100}"); |
545 | is(substr($x, 1, 1), "\x{FF}"); |
546 | is(substr($x, 2, 1), "\x{101}"); |
547 | is(substr($x, 3, 1), "\x{F2}"); |
548 | is(substr($x, 4, 1), "\x{F3}"); |
9aa983d2 |
549 | |
550 | $x = "\x{101}\x{F2}\x{F3}"; |
551 | substr($x, 1, -1) = "\x{100}\xFF"; |
e198f039 |
552 | is(length($x), 4); |
553 | is($x, "\x{101}\x{100}\xFF\xF3"); |
554 | is(substr($x, 0, 1), "\x{101}"); |
555 | is(substr($x, 1, 1), "\x{100}"); |
556 | is(substr($x, 2, 1), "\x{FF}"); |
557 | is(substr($x, 3, 1), "\x{F3}"); |
9aa983d2 |
558 | |
559 | $x = "\x{101}\x{F2}\x{F3}"; |
560 | substr($x, -1, -1) = "\x{100}\xFF"; |
e198f039 |
561 | is(length($x), 5); |
562 | is($x, "\x{101}\xF2\x{100}\xFF\xF3"); |
563 | is(substr($x, 0, 1), "\x{101}"); |
564 | is(substr($x, 1, 1), "\x{F2}"); |
565 | is(substr($x, 2, 1), "\x{100}"); |
566 | is(substr($x, 3, 1), "\x{FF}"); |
567 | is(substr($x, 4, 1), "\x{F3}"); |
f7928d6c |
568 | |
569 | substr($x = "ab", 0, 0, "\x{100}\x{200}"); |
e198f039 |
570 | is($x, "\x{100}\x{200}ab"); |
f7928d6c |
571 | |
572 | substr($x = "\x{100}\x{200}", 0, 0, "ab"); |
e198f039 |
573 | is($x, "ab\x{100}\x{200}"); |
f7928d6c |
574 | |
575 | substr($x = "ab", 1, 0, "\x{100}\x{200}"); |
e198f039 |
576 | is($x, "a\x{100}\x{200}b"); |
f7928d6c |
577 | |
578 | substr($x = "\x{100}\x{200}", 1, 0, "ab"); |
e198f039 |
579 | is($x, "\x{100}ab\x{200}"); |
f7928d6c |
580 | |
581 | substr($x = "ab", 2, 0, "\x{100}\x{200}"); |
e198f039 |
582 | is($x, "ab\x{100}\x{200}"); |
f7928d6c |
583 | |
584 | substr($x = "\x{100}\x{200}", 2, 0, "ab"); |
e198f039 |
585 | is($x, "\x{100}\x{200}ab"); |
f7928d6c |
586 | |
9402d6ed |
587 | substr($x = "\xFFb", 0, 0, "\x{100}\x{200}"); |
e198f039 |
588 | is($x, "\x{100}\x{200}\xFFb"); |
9402d6ed |
589 | |
590 | substr($x = "\x{100}\x{200}", 0, 0, "\xFFb"); |
e198f039 |
591 | is($x, "\xFFb\x{100}\x{200}"); |
9402d6ed |
592 | |
593 | substr($x = "\xFFb", 1, 0, "\x{100}\x{200}"); |
e198f039 |
594 | is($x, "\xFF\x{100}\x{200}b"); |
9402d6ed |
595 | |
596 | substr($x = "\x{100}\x{200}", 1, 0, "\xFFb"); |
e198f039 |
597 | is($x, "\x{100}\xFFb\x{200}"); |
9402d6ed |
598 | |
599 | substr($x = "\xFFb", 2, 0, "\x{100}\x{200}"); |
e198f039 |
600 | is($x, "\xFFb\x{100}\x{200}"); |
9402d6ed |
601 | |
602 | substr($x = "\x{100}\x{200}", 2, 0, "\xFFb"); |
e198f039 |
603 | is($x, "\x{100}\x{200}\xFFb"); |
9402d6ed |
604 | |
24aef97f |
605 | # [perl #20933] |
606 | { |
607 | my $s = "ab"; |
608 | my @r; |
609 | $r[$_] = \ substr $s, $_, 1 for (0, 1); |
e198f039 |
610 | is(join("", map { $$_ } @r), "ab"); |
24aef97f |
611 | } |
6214ab63 |
612 | |
613 | # [perl #23207] |
614 | { |
615 | sub ss { |
616 | substr($_[0],0,1) ^= substr($_[0],1,1) ^= |
617 | substr($_[0],0,1) ^= substr($_[0],1,1); |
618 | } |
619 | my $x = my $y = 'AB'; ss $x; ss $y; |
e198f039 |
620 | is($x, $y); |
6214ab63 |
621 | } |
8f78557a |
622 | |
623 | # [perl #24605] |
624 | { |
625 | my $x = "0123456789\x{500}"; |
626 | my $y = substr $x, 4; |
e198f039 |
627 | is(substr($x, 7, 1), "7"); |
8f78557a |
628 | } |
c2552146 |
629 | |
630 | # multiple assignments to lvalue [perl #24346] |
631 | { |
632 | my $x = "abcdef"; |
633 | for (substr($x,1,3)) { |
e198f039 |
634 | is($_, 'bcd'); |
c2552146 |
635 | $_ = 'XX'; |
e198f039 |
636 | is($_, 'XX'); |
637 | is($x, 'aXXef'); |
c2552146 |
638 | $_ = "\xFF"; |
e198f039 |
639 | is($_, "\xFF"); |
640 | is($x, "a\xFFef"); |
c2552146 |
641 | $_ = "\xF1\xF2\xF3\xF4\xF5\xF6"; |
e198f039 |
642 | is($_, "\xF1\xF2\xF3\xF4\xF5\xF6"); |
643 | is($x, "a\xF1\xF2\xF3\xF4\xF5\xF6ef"); |
c2552146 |
644 | $_ = 'YYYY'; |
e198f039 |
645 | is($_, 'YYYY'); |
646 | is($x, 'aYYYYef'); |
c2552146 |
647 | } |
648 | } |
781e7547 |
649 | |
650 | # [perl #24200] string corruption with lvalue sub |
651 | |
652 | { |
e3faa678 |
653 | sub bar: lvalue { substr $krunch, 0 } |
781e7547 |
654 | bar = "XXX"; |
e198f039 |
655 | is(bar, 'XXX'); |
e3faa678 |
656 | $krunch = '123456789'; |
e198f039 |
657 | is(bar, '123456789'); |
781e7547 |
658 | } |
a67d7df9 |
659 | |
660 | # [perl #29149] |
661 | { |
662 | my $text = "0123456789\xED "; |
663 | utf8::upgrade($text); |
664 | my $pos = 5; |
665 | pos($text) = $pos; |
666 | my $a = substr($text, $pos, $pos); |
e198f039 |
667 | is(substr($text,$pos,1), $pos); |
a67d7df9 |
668 | |
669 | } |
080534f4 |
670 | |
671 | # [perl #23765] |
672 | { |
673 | my $a = pack("C", 0xbf); |
674 | substr($a, -1) &= chr(0xfeff); |
e198f039 |
675 | is($a, "\xbf"); |
080534f4 |
676 | } |
ec062429 |
677 | |
678 | # [perl #34976] incorrect caching of utf8 substr length |
679 | { |
680 | my $a = "abcd\x{100}"; |
e198f039 |
681 | is(substr($a,1,2), 'bc'); |
682 | is(substr($a,1,1), 'b'); |
ec062429 |
683 | } |
e3faa678 |
684 | |
685 | } |