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 | |
777f7c56 |
27 | plan(360); |
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 |
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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); |
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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); |
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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); |
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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 | |
777f7c56 |
204 | $b = substr($a,-7,-6) ; # warn # Q R P S |
205 | is($w--, 1); |
206 | eval{substr($a,-7,-6) = "" ; }; # Q R P S |
207 | like($@, $FATAL_MSG); |
208 | |
84902520 |
209 | my $a = 'zxcvbnm'; |
210 | substr($a,2,0) = ''; |
e198f039 |
211 | is($a, 'zxcvbnm'); |
84902520 |
212 | substr($a,7,0) = ''; |
e198f039 |
213 | is($a, 'zxcvbnm'); |
84902520 |
214 | substr($a,5,0) = ''; |
e198f039 |
215 | is($a, 'zxcvbnm'); |
84902520 |
216 | substr($a,0,2) = 'pq'; |
e198f039 |
217 | is($a, 'pqcvbnm'); |
84902520 |
218 | substr($a,2,0) = 'r'; |
e198f039 |
219 | is($a, 'pqrcvbnm'); |
84902520 |
220 | substr($a,8,0) = 'asd'; |
e198f039 |
221 | is($a, 'pqrcvbnmasd'); |
84902520 |
222 | substr($a,0,2) = 'iop'; |
e198f039 |
223 | is($a, 'ioprcvbnmasd'); |
84902520 |
224 | substr($a,0,5) = 'fgh'; |
e198f039 |
225 | is($a, 'fghvbnmasd'); |
84902520 |
226 | substr($a,3,5) = 'jkl'; |
e198f039 |
227 | is($a, 'fghjklsd'); |
84902520 |
228 | substr($a,3,2) = '1234'; |
e198f039 |
229 | is($a, 'fgh1234lsd'); |
84902520 |
230 | |
08cb0b0d |
231 | |
232 | # with lexicals (and in re-entered scopes) |
233 | for (0,1) { |
234 | my $txt; |
235 | unless ($_) { |
236 | $txt = "Foo"; |
237 | substr($txt, -1) = "X"; |
e198f039 |
238 | is($txt, "FoX"); |
08cb0b0d |
239 | } |
240 | else { |
241 | substr($txt, 0, 1) = "X"; |
e198f039 |
242 | is($txt, "X"); |
08cb0b0d |
243 | } |
244 | } |
245 | |
e476b1b5 |
246 | $w = 0 ; |
84902520 |
247 | # coercion of references |
08cb0b0d |
248 | { |
249 | my $s = []; |
250 | substr($s, 0, 1) = 'Foo'; |
e198f039 |
251 | is (substr($s,0,7), "FooRRAY"); |
252 | is ($w,2); |
253 | $w = 0; |
08cb0b0d |
254 | } |
84902520 |
255 | |
256 | # check no spurious warnings |
e198f039 |
257 | is($w, 0); |
7b8d334a |
258 | |
5d82c453 |
259 | # check new 4 arg replacement syntax |
7b8d334a |
260 | $a = "abcxyz"; |
5d82c453 |
261 | $w = 0; |
e198f039 |
262 | is(substr($a, 0, 3, ""), "abc"); |
263 | is($a, "xyz"); |
264 | is(substr($a, 0, 0, "abc"), ""); |
265 | is($a, "abcxyz"); |
266 | is(substr($a, 3, -1, ""), "xy"); |
267 | is($a, "abcz"); |
e476b1b5 |
268 | |
e198f039 |
269 | is(substr($a, 3, undef, "xy"), ""); |
270 | is($a, "abcxyz"); |
271 | is($w, 3); |
e476b1b5 |
272 | |
5d82c453 |
273 | $w = 0; |
274 | |
e198f039 |
275 | is(substr($a, 3, 9999999, ""), "xyz"); |
276 | is($a, "abc"); |
e476b1b5 |
277 | eval{substr($a, -99, 0, "") }; |
e198f039 |
278 | like($@, $FATAL_MSG); |
e476b1b5 |
279 | eval{substr($a, 99, 3, "") }; |
e198f039 |
280 | like($@, $FATAL_MSG); |
5d82c453 |
281 | |
282 | substr($a, 0, length($a), "foo"); |
e198f039 |
283 | is ($a, "foo"); |
284 | is ($w, 0); |
5d82c453 |
285 | |
286 | # using 4 arg substr as lvalue is a compile time error |
287 | eval 'substr($a,0,0,"") = "abc"'; |
e198f039 |
288 | like ($@, qr/Can't modify substr/); |
289 | is ($a, "foo"); |
c8faf1c5 |
290 | |
291 | $a = "abcdefgh"; |
e198f039 |
292 | is(sub { shift }->(substr($a, 0, 4, "xxxx")), 'abcd'); |
293 | is($a, 'xxxxefgh'); |
7f66633b |
294 | |
e84ff256 |
295 | { |
296 | my $y = 10; |
297 | $y = "2" . $y; |
e198f039 |
298 | is ($y, 210); |
e84ff256 |
299 | } |
300 | |
7f66633b |
301 | # utf8 sanity |
302 | { |
303 | my $x = substr("a\x{263a}b",0); |
e198f039 |
304 | is(length($x), 3); |
7f66633b |
305 | $x = substr($x,1,1); |
e198f039 |
306 | is($x, "\x{263a}"); |
dfcb284a |
307 | $x = $x x 2; |
e198f039 |
308 | is(length($x), 2); |
7f66633b |
309 | substr($x,0,1) = "abcd"; |
e198f039 |
310 | is($x, "abcd\x{263a}"); |
311 | is(length($x), 5); |
e84ff256 |
312 | $x = reverse $x; |
e198f039 |
313 | is(length($x), 5); |
314 | is($x, "\x{263a}dcba"); |
e84ff256 |
315 | |
316 | my $z = 10; |
317 | $z = "21\x{263a}" . $z; |
e198f039 |
318 | is(length($z), 5); |
319 | is($z, "21\x{263a}10"); |
7f66633b |
320 | } |
35fba0d9 |
321 | |
322 | # replacement should work on magical values |
323 | require Tie::Scalar; |
324 | my %data; |
325 | tie $data{'a'}, 'Tie::StdScalar'; # makes $data{'a'} magical |
326 | $data{a} = "firstlast"; |
e198f039 |
327 | is(substr($data{'a'}, 0, 5, ""), "first"); |
328 | is($data{'a'}, "last"); |
075a4a2b |
329 | |
330 | # more utf8 |
331 | |
332 | # The following two originally from Ignasi Roca. |
333 | |
334 | $x = "\xF1\xF2\xF3"; |
335 | substr($x, 0, 1) = "\x{100}"; # Ignasi had \x{FF} |
e198f039 |
336 | is(length($x), 3); |
337 | is($x, "\x{100}\xF2\xF3"); |
338 | is(substr($x, 0, 1), "\x{100}"); |
339 | is(substr($x, 1, 1), "\x{F2}"); |
340 | is(substr($x, 2, 1), "\x{F3}"); |
075a4a2b |
341 | |
342 | $x = "\xF1\xF2\xF3"; |
343 | substr($x, 0, 1) = "\x{100}\x{FF}"; # Ignasi had \x{FF} |
e198f039 |
344 | is(length($x), 4); |
345 | is($x, "\x{100}\x{FF}\xF2\xF3"); |
346 | is(substr($x, 0, 1), "\x{100}"); |
347 | is(substr($x, 1, 1), "\x{FF}"); |
348 | is(substr($x, 2, 1), "\x{F2}"); |
349 | is(substr($x, 3, 1), "\x{F3}"); |
075a4a2b |
350 | |
351 | # more utf8 lval exercise |
352 | |
353 | $x = "\xF1\xF2\xF3"; |
354 | substr($x, 0, 2) = "\x{100}\xFF"; |
e198f039 |
355 | is(length($x), 3); |
356 | is($x, "\x{100}\xFF\xF3"); |
357 | is(substr($x, 0, 1), "\x{100}"); |
358 | is(substr($x, 1, 1), "\x{FF}"); |
359 | is(substr($x, 2, 1), "\x{F3}"); |
075a4a2b |
360 | |
361 | $x = "\xF1\xF2\xF3"; |
362 | substr($x, 1, 1) = "\x{100}\xFF"; |
e198f039 |
363 | is(length($x), 4); |
364 | is($x, "\xF1\x{100}\xFF\xF3"); |
365 | is(substr($x, 0, 1), "\x{F1}"); |
366 | is(substr($x, 1, 1), "\x{100}"); |
367 | is(substr($x, 2, 1), "\x{FF}"); |
368 | is(substr($x, 3, 1), "\x{F3}"); |
075a4a2b |
369 | |
370 | $x = "\xF1\xF2\xF3"; |
371 | substr($x, 2, 1) = "\x{100}\xFF"; |
e198f039 |
372 | is(length($x), 4); |
373 | is($x, "\xF1\xF2\x{100}\xFF"); |
374 | is(substr($x, 0, 1), "\x{F1}"); |
375 | is(substr($x, 1, 1), "\x{F2}"); |
376 | is(substr($x, 2, 1), "\x{100}"); |
377 | is(substr($x, 3, 1), "\x{FF}"); |
075a4a2b |
378 | |
379 | $x = "\xF1\xF2\xF3"; |
380 | substr($x, 3, 1) = "\x{100}\xFF"; |
e198f039 |
381 | is(length($x), 5); |
382 | is($x, "\xF1\xF2\xF3\x{100}\xFF"); |
383 | is(substr($x, 0, 1), "\x{F1}"); |
384 | is(substr($x, 1, 1), "\x{F2}"); |
385 | is(substr($x, 2, 1), "\x{F3}"); |
386 | is(substr($x, 3, 1), "\x{100}"); |
387 | is(substr($x, 4, 1), "\x{FF}"); |
075a4a2b |
388 | |
389 | $x = "\xF1\xF2\xF3"; |
390 | substr($x, -1, 1) = "\x{100}\xFF"; |
e198f039 |
391 | is(length($x), 4); |
392 | is($x, "\xF1\xF2\x{100}\xFF"); |
393 | is(substr($x, 0, 1), "\x{F1}"); |
394 | is(substr($x, 1, 1), "\x{F2}"); |
395 | is(substr($x, 2, 1), "\x{100}"); |
396 | is(substr($x, 3, 1), "\x{FF}"); |
075a4a2b |
397 | |
398 | $x = "\xF1\xF2\xF3"; |
399 | substr($x, -1, 0) = "\x{100}\xFF"; |
e198f039 |
400 | is(length($x), 5); |
401 | is($x, "\xF1\xF2\x{100}\xFF\xF3"); |
402 | is(substr($x, 0, 1), "\x{F1}"); |
403 | is(substr($x, 1, 1), "\x{F2}"); |
404 | is(substr($x, 2, 1), "\x{100}"); |
405 | is(substr($x, 3, 1), "\x{FF}"); |
406 | is(substr($x, 4, 1), "\x{F3}"); |
075a4a2b |
407 | |
408 | $x = "\xF1\xF2\xF3"; |
409 | substr($x, 0, -1) = "\x{100}\xFF"; |
e198f039 |
410 | is(length($x), 3); |
411 | is($x, "\x{100}\xFF\xF3"); |
412 | is(substr($x, 0, 1), "\x{100}"); |
413 | is(substr($x, 1, 1), "\x{FF}"); |
414 | is(substr($x, 2, 1), "\x{F3}"); |
075a4a2b |
415 | |
416 | $x = "\xF1\xF2\xF3"; |
417 | substr($x, 0, -2) = "\x{100}\xFF"; |
e198f039 |
418 | is(length($x), 4); |
419 | is($x, "\x{100}\xFF\xF2\xF3"); |
420 | is(substr($x, 0, 1), "\x{100}"); |
421 | is(substr($x, 1, 1), "\x{FF}"); |
422 | is(substr($x, 2, 1), "\x{F2}"); |
423 | is(substr($x, 3, 1), "\x{F3}"); |
075a4a2b |
424 | |
425 | $x = "\xF1\xF2\xF3"; |
426 | substr($x, 0, -3) = "\x{100}\xFF"; |
e198f039 |
427 | is(length($x), 5); |
428 | is($x, "\x{100}\xFF\xF1\xF2\xF3"); |
429 | is(substr($x, 0, 1), "\x{100}"); |
430 | is(substr($x, 1, 1), "\x{FF}"); |
431 | is(substr($x, 2, 1), "\x{F1}"); |
432 | is(substr($x, 3, 1), "\x{F2}"); |
433 | is(substr($x, 4, 1), "\x{F3}"); |
075a4a2b |
434 | |
435 | $x = "\xF1\xF2\xF3"; |
436 | substr($x, 1, -1) = "\x{100}\xFF"; |
e198f039 |
437 | is(length($x), 4); |
438 | is($x, "\xF1\x{100}\xFF\xF3"); |
439 | is(substr($x, 0, 1), "\x{F1}"); |
440 | is(substr($x, 1, 1), "\x{100}"); |
441 | is(substr($x, 2, 1), "\x{FF}"); |
442 | is(substr($x, 3, 1), "\x{F3}"); |
075a4a2b |
443 | |
444 | $x = "\xF1\xF2\xF3"; |
445 | substr($x, -1, -1) = "\x{100}\xFF"; |
e198f039 |
446 | is(length($x), 5); |
447 | is($x, "\xF1\xF2\x{100}\xFF\xF3"); |
448 | is(substr($x, 0, 1), "\x{F1}"); |
449 | is(substr($x, 1, 1), "\x{F2}"); |
450 | is(substr($x, 2, 1), "\x{100}"); |
451 | is(substr($x, 3, 1), "\x{FF}"); |
452 | is(substr($x, 4, 1), "\x{F3}"); |
075a4a2b |
453 | |
9aa983d2 |
454 | # And tests for already-UTF8 one |
455 | |
456 | $x = "\x{101}\x{F2}\x{F3}"; |
457 | substr($x, 0, 1) = "\x{100}"; |
e198f039 |
458 | is(length($x), 3); |
459 | is($x, "\x{100}\xF2\xF3"); |
460 | is(substr($x, 0, 1), "\x{100}"); |
461 | is(substr($x, 1, 1), "\x{F2}"); |
462 | is(substr($x, 2, 1), "\x{F3}"); |
9aa983d2 |
463 | |
464 | $x = "\x{101}\x{F2}\x{F3}"; |
465 | substr($x, 0, 1) = "\x{100}\x{FF}"; |
e198f039 |
466 | is(length($x), 4); |
467 | is($x, "\x{100}\x{FF}\xF2\xF3"); |
468 | is(substr($x, 0, 1), "\x{100}"); |
469 | is(substr($x, 1, 1), "\x{FF}"); |
470 | is(substr($x, 2, 1), "\x{F2}"); |
471 | is(substr($x, 3, 1), "\x{F3}"); |
9aa983d2 |
472 | |
473 | $x = "\x{101}\x{F2}\x{F3}"; |
474 | substr($x, 0, 2) = "\x{100}\xFF"; |
e198f039 |
475 | is(length($x), 3); |
476 | is($x, "\x{100}\xFF\xF3"); |
477 | is(substr($x, 0, 1), "\x{100}"); |
478 | is(substr($x, 1, 1), "\x{FF}"); |
479 | is(substr($x, 2, 1), "\x{F3}"); |
9aa983d2 |
480 | |
481 | $x = "\x{101}\x{F2}\x{F3}"; |
482 | substr($x, 1, 1) = "\x{100}\xFF"; |
e198f039 |
483 | is(length($x), 4); |
484 | is($x, "\x{101}\x{100}\xFF\xF3"); |
485 | is(substr($x, 0, 1), "\x{101}"); |
486 | is(substr($x, 1, 1), "\x{100}"); |
487 | is(substr($x, 2, 1), "\x{FF}"); |
488 | is(substr($x, 3, 1), "\x{F3}"); |
9aa983d2 |
489 | |
490 | $x = "\x{101}\x{F2}\x{F3}"; |
491 | substr($x, 2, 1) = "\x{100}\xFF"; |
e198f039 |
492 | is(length($x), 4); |
493 | is($x, "\x{101}\xF2\x{100}\xFF"); |
494 | is(substr($x, 0, 1), "\x{101}"); |
495 | is(substr($x, 1, 1), "\x{F2}"); |
496 | is(substr($x, 2, 1), "\x{100}"); |
497 | is(substr($x, 3, 1), "\x{FF}"); |
9aa983d2 |
498 | |
499 | $x = "\x{101}\x{F2}\x{F3}"; |
500 | substr($x, 3, 1) = "\x{100}\xFF"; |
e198f039 |
501 | is(length($x), 5); |
502 | is($x, "\x{101}\x{F2}\x{F3}\x{100}\xFF"); |
503 | is(substr($x, 0, 1), "\x{101}"); |
504 | is(substr($x, 1, 1), "\x{F2}"); |
505 | is(substr($x, 2, 1), "\x{F3}"); |
506 | is(substr($x, 3, 1), "\x{100}"); |
507 | is(substr($x, 4, 1), "\x{FF}"); |
9aa983d2 |
508 | |
509 | $x = "\x{101}\x{F2}\x{F3}"; |
510 | substr($x, -1, 1) = "\x{100}\xFF"; |
e198f039 |
511 | is(length($x), 4); |
512 | is($x, "\x{101}\xF2\x{100}\xFF"); |
513 | is(substr($x, 0, 1), "\x{101}"); |
514 | is(substr($x, 1, 1), "\x{F2}"); |
515 | is(substr($x, 2, 1), "\x{100}"); |
516 | is(substr($x, 3, 1), "\x{FF}"); |
9aa983d2 |
517 | |
518 | $x = "\x{101}\x{F2}\x{F3}"; |
519 | substr($x, -1, 0) = "\x{100}\xFF"; |
e198f039 |
520 | is(length($x), 5); |
521 | is($x, "\x{101}\xF2\x{100}\xFF\xF3"); |
522 | is(substr($x, 0, 1), "\x{101}"); |
523 | is(substr($x, 1, 1), "\x{F2}"); |
524 | is(substr($x, 2, 1), "\x{100}"); |
525 | is(substr($x, 3, 1), "\x{FF}"); |
526 | is(substr($x, 4, 1), "\x{F3}"); |
9aa983d2 |
527 | |
528 | $x = "\x{101}\x{F2}\x{F3}"; |
529 | substr($x, 0, -1) = "\x{100}\xFF"; |
e198f039 |
530 | is(length($x), 3); |
531 | is($x, "\x{100}\xFF\xF3"); |
532 | is(substr($x, 0, 1), "\x{100}"); |
533 | is(substr($x, 1, 1), "\x{FF}"); |
534 | is(substr($x, 2, 1), "\x{F3}"); |
9aa983d2 |
535 | |
536 | $x = "\x{101}\x{F2}\x{F3}"; |
537 | substr($x, 0, -2) = "\x{100}\xFF"; |
e198f039 |
538 | is(length($x), 4); |
539 | is($x, "\x{100}\xFF\xF2\xF3"); |
540 | is(substr($x, 0, 1), "\x{100}"); |
541 | is(substr($x, 1, 1), "\x{FF}"); |
542 | is(substr($x, 2, 1), "\x{F2}"); |
543 | is(substr($x, 3, 1), "\x{F3}"); |
9aa983d2 |
544 | |
545 | $x = "\x{101}\x{F2}\x{F3}"; |
546 | substr($x, 0, -3) = "\x{100}\xFF"; |
e198f039 |
547 | is(length($x), 5); |
548 | is($x, "\x{100}\xFF\x{101}\x{F2}\x{F3}"); |
549 | is(substr($x, 0, 1), "\x{100}"); |
550 | is(substr($x, 1, 1), "\x{FF}"); |
551 | is(substr($x, 2, 1), "\x{101}"); |
552 | is(substr($x, 3, 1), "\x{F2}"); |
553 | is(substr($x, 4, 1), "\x{F3}"); |
9aa983d2 |
554 | |
555 | $x = "\x{101}\x{F2}\x{F3}"; |
556 | substr($x, 1, -1) = "\x{100}\xFF"; |
e198f039 |
557 | is(length($x), 4); |
558 | is($x, "\x{101}\x{100}\xFF\xF3"); |
559 | is(substr($x, 0, 1), "\x{101}"); |
560 | is(substr($x, 1, 1), "\x{100}"); |
561 | is(substr($x, 2, 1), "\x{FF}"); |
562 | is(substr($x, 3, 1), "\x{F3}"); |
9aa983d2 |
563 | |
564 | $x = "\x{101}\x{F2}\x{F3}"; |
565 | substr($x, -1, -1) = "\x{100}\xFF"; |
e198f039 |
566 | is(length($x), 5); |
567 | is($x, "\x{101}\xF2\x{100}\xFF\xF3"); |
568 | is(substr($x, 0, 1), "\x{101}"); |
569 | is(substr($x, 1, 1), "\x{F2}"); |
570 | is(substr($x, 2, 1), "\x{100}"); |
571 | is(substr($x, 3, 1), "\x{FF}"); |
572 | is(substr($x, 4, 1), "\x{F3}"); |
f7928d6c |
573 | |
574 | substr($x = "ab", 0, 0, "\x{100}\x{200}"); |
e198f039 |
575 | is($x, "\x{100}\x{200}ab"); |
f7928d6c |
576 | |
577 | substr($x = "\x{100}\x{200}", 0, 0, "ab"); |
e198f039 |
578 | is($x, "ab\x{100}\x{200}"); |
f7928d6c |
579 | |
580 | substr($x = "ab", 1, 0, "\x{100}\x{200}"); |
e198f039 |
581 | is($x, "a\x{100}\x{200}b"); |
f7928d6c |
582 | |
583 | substr($x = "\x{100}\x{200}", 1, 0, "ab"); |
e198f039 |
584 | is($x, "\x{100}ab\x{200}"); |
f7928d6c |
585 | |
586 | substr($x = "ab", 2, 0, "\x{100}\x{200}"); |
e198f039 |
587 | is($x, "ab\x{100}\x{200}"); |
f7928d6c |
588 | |
589 | substr($x = "\x{100}\x{200}", 2, 0, "ab"); |
e198f039 |
590 | is($x, "\x{100}\x{200}ab"); |
f7928d6c |
591 | |
9402d6ed |
592 | substr($x = "\xFFb", 0, 0, "\x{100}\x{200}"); |
e198f039 |
593 | is($x, "\x{100}\x{200}\xFFb"); |
9402d6ed |
594 | |
595 | substr($x = "\x{100}\x{200}", 0, 0, "\xFFb"); |
e198f039 |
596 | is($x, "\xFFb\x{100}\x{200}"); |
9402d6ed |
597 | |
598 | substr($x = "\xFFb", 1, 0, "\x{100}\x{200}"); |
e198f039 |
599 | is($x, "\xFF\x{100}\x{200}b"); |
9402d6ed |
600 | |
601 | substr($x = "\x{100}\x{200}", 1, 0, "\xFFb"); |
e198f039 |
602 | is($x, "\x{100}\xFFb\x{200}"); |
9402d6ed |
603 | |
604 | substr($x = "\xFFb", 2, 0, "\x{100}\x{200}"); |
e198f039 |
605 | is($x, "\xFFb\x{100}\x{200}"); |
9402d6ed |
606 | |
607 | substr($x = "\x{100}\x{200}", 2, 0, "\xFFb"); |
e198f039 |
608 | is($x, "\x{100}\x{200}\xFFb"); |
9402d6ed |
609 | |
24aef97f |
610 | # [perl #20933] |
611 | { |
612 | my $s = "ab"; |
613 | my @r; |
614 | $r[$_] = \ substr $s, $_, 1 for (0, 1); |
e198f039 |
615 | is(join("", map { $$_ } @r), "ab"); |
24aef97f |
616 | } |
6214ab63 |
617 | |
618 | # [perl #23207] |
619 | { |
620 | sub ss { |
621 | substr($_[0],0,1) ^= substr($_[0],1,1) ^= |
622 | substr($_[0],0,1) ^= substr($_[0],1,1); |
623 | } |
624 | my $x = my $y = 'AB'; ss $x; ss $y; |
e198f039 |
625 | is($x, $y); |
6214ab63 |
626 | } |
8f78557a |
627 | |
628 | # [perl #24605] |
629 | { |
630 | my $x = "0123456789\x{500}"; |
631 | my $y = substr $x, 4; |
e198f039 |
632 | is(substr($x, 7, 1), "7"); |
8f78557a |
633 | } |
c2552146 |
634 | |
635 | # multiple assignments to lvalue [perl #24346] |
636 | { |
637 | my $x = "abcdef"; |
638 | for (substr($x,1,3)) { |
e198f039 |
639 | is($_, 'bcd'); |
c2552146 |
640 | $_ = 'XX'; |
e198f039 |
641 | is($_, 'XX'); |
642 | is($x, 'aXXef'); |
c2552146 |
643 | $_ = "\xFF"; |
e198f039 |
644 | is($_, "\xFF"); |
645 | is($x, "a\xFFef"); |
c2552146 |
646 | $_ = "\xF1\xF2\xF3\xF4\xF5\xF6"; |
e198f039 |
647 | is($_, "\xF1\xF2\xF3\xF4\xF5\xF6"); |
648 | is($x, "a\xF1\xF2\xF3\xF4\xF5\xF6ef"); |
c2552146 |
649 | $_ = 'YYYY'; |
e198f039 |
650 | is($_, 'YYYY'); |
651 | is($x, 'aYYYYef'); |
c2552146 |
652 | } |
653 | } |
781e7547 |
654 | |
655 | # [perl #24200] string corruption with lvalue sub |
656 | |
657 | { |
e3faa678 |
658 | sub bar: lvalue { substr $krunch, 0 } |
781e7547 |
659 | bar = "XXX"; |
e198f039 |
660 | is(bar, 'XXX'); |
e3faa678 |
661 | $krunch = '123456789'; |
e198f039 |
662 | is(bar, '123456789'); |
781e7547 |
663 | } |
a67d7df9 |
664 | |
665 | # [perl #29149] |
666 | { |
667 | my $text = "0123456789\xED "; |
668 | utf8::upgrade($text); |
669 | my $pos = 5; |
670 | pos($text) = $pos; |
671 | my $a = substr($text, $pos, $pos); |
e198f039 |
672 | is(substr($text,$pos,1), $pos); |
a67d7df9 |
673 | |
674 | } |
080534f4 |
675 | |
676 | # [perl #23765] |
677 | { |
678 | my $a = pack("C", 0xbf); |
679 | substr($a, -1) &= chr(0xfeff); |
e198f039 |
680 | is($a, "\xbf"); |
080534f4 |
681 | } |
ec062429 |
682 | |
683 | # [perl #34976] incorrect caching of utf8 substr length |
684 | { |
685 | my $a = "abcd\x{100}"; |
e198f039 |
686 | is(substr($a,1,2), 'bc'); |
687 | is(substr($a,1,1), 'b'); |
ec062429 |
688 | } |
e3faa678 |
689 | |
777f7c56 |
690 | # [perl #62646] offsets exceeding 32 bits on 64-bit system |
691 | SKIP: { |
692 | skip("32-bit system", 24) unless ~0 > 0xffffffff; |
693 | my $a = "abc"; |
694 | my $s; |
695 | my $r; |
696 | |
697 | utf8::downgrade($a); |
698 | for (1..2) { |
699 | $w = 0; |
700 | $r = substr($a, 0xffffffff, 1); |
701 | is($r, undef); |
702 | is($w, 1); |
703 | |
704 | $w = 0; |
705 | $r = substr($a, 0xffffffff+1, 1); |
706 | is($r, undef); |
707 | is($w, 1); |
708 | |
709 | $w = 0; |
710 | ok( !eval { $r = substr($s=$a, 0xffffffff, 1, "_"); 1 } ); |
711 | is($r, undef); |
712 | is($s, $a); |
713 | is($w, 0); |
714 | |
715 | $w = 0; |
716 | ok( !eval { $r = substr($s=$a, 0xffffffff+1, 1, "_"); 1 } ); |
717 | is($r, undef); |
718 | is($s, $a); |
719 | is($w, 0); |
720 | |
721 | utf8::upgrade($a); |
722 | } |
723 | } |
724 | |
e3faa678 |
725 | } |