Commit | Line | Data |
---|---|---|
55b67815 | 1 | #!./perl |
84902520 TB |
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 GS |
8 | } |
9 | use warnings ; | |
55b67815 | 10 | no warnings 'deprecated'; |
84902520 | 11 | |
e476b1b5 | 12 | $a = 'abcdefxyz'; |
84902520 TB |
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 | $w += 2; | |
5d82c453 GA |
18 | } elsif ($_[0] =~ /^Use of uninitialized value/) { |
19 | $w += 3; | |
84902520 | 20 | } else { |
5d82c453 | 21 | warn $_[0]; |
84902520 TB |
22 | } |
23 | }; | |
a687059c | 24 | |
e198f039 NC |
25 | require './test.pl'; |
26 | ||
27 | plan(334); | |
e476b1b5 | 28 | |
e3faa678 NC |
29 | run_tests() unless caller; |
30 | ||
31 | my $krunch = "a"; | |
32 | ||
33 | sub run_tests { | |
34 | ||
e198f039 | 35 | $FATAL_MSG = qr/^substr outside of string/; |
84902520 | 36 | |
e198f039 NC |
37 | is(substr($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 NC |
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 LW |
46 | |
47 | $[ = 1; | |
48 | ||
e198f039 NC |
49 | is(substr($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 NC |
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 LW |
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 LW |
76 | $a = 'abcdefxyz'; |
77 | ||
e198f039 NC |
78 | is(substr($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 NC |
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 TB |
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 NC |
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 NC |
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 TB |
152 | |
153 | $a = ''; | |
154 | ||
e198f039 NC |
155 | is(substr($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($a,0), ''); # P=Q=R=S | |
e476b1b5 GS |
161 | |
162 | ||
e198f039 | 163 | is(substr($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 GS |
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 GS |
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 GS |
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 GS |
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 TB |
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 NC |
246 | is (substr($s,0,7), "FooRRAY"); |
247 | is ($w,2); | |
248 | $w = 0; | |
08cb0b0d | 249 | } |
84902520 TB |
250 | |
251 | # check no spurious warnings | |
e198f039 | 252 | is($w, 0); |
7b8d334a | 253 | |
5d82c453 | 254 | # check new 4 arg replacement syntax |
7b8d334a | 255 | $a = "abcxyz"; |
5d82c453 | 256 | $w = 0; |
e198f039 NC |
257 | is(substr($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($a, "abcz"); | |
e476b1b5 | 263 | |
e198f039 NC |
264 | is(substr($a, 3, undef, "xy"), ""); |
265 | is($a, "abcxyz"); | |
266 | is($w, 3); | |
e476b1b5 | 267 | |
5d82c453 GA |
268 | $w = 0; |
269 | ||
e198f039 NC |
270 | is(substr($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($@, $FATAL_MSG); |
5d82c453 GA |
276 | |
277 | substr($a, 0, length($a), "foo"); | |
e198f039 NC |
278 | is ($a, "foo"); |
279 | is ($w, 0); | |
5d82c453 GA |
280 | |
281 | # using 4 arg substr as lvalue is a compile time error | |
282 | eval 'substr($a,0,0,"") = "abc"'; | |
e198f039 NC |
283 | like ($@, qr/Can't modify substr/); |
284 | is ($a, "foo"); | |
c8faf1c5 GS |
285 | |
286 | $a = "abcdefgh"; | |
e198f039 NC |
287 | is(sub { shift }->(substr($a, 0, 4, "xxxx")), 'abcd'); |
288 | is($a, 'xxxxefgh'); | |
7f66633b | 289 | |
e84ff256 GS |
290 | { |
291 | my $y = 10; | |
292 | $y = "2" . $y; | |
e198f039 | 293 | is ($y, 210); |
e84ff256 GS |
294 | } |
295 | ||
7f66633b GS |
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($x,0,1) = "abcd"; |
e198f039 NC |
305 | is($x, "abcd\x{263a}"); |
306 | is(length($x), 5); | |
e84ff256 | 307 | $x = reverse $x; |
e198f039 NC |
308 | is(length($x), 5); |
309 | is($x, "\x{263a}dcba"); | |
e84ff256 GS |
310 | |
311 | my $z = 10; | |
312 | $z = "21\x{263a}" . $z; | |
e198f039 NC |
313 | is(length($z), 5); |
314 | is($z, "21\x{263a}10"); | |
7f66633b | 315 | } |
35fba0d9 RG |
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 | $data{a} = "firstlast"; | |
e198f039 NC |
322 | is(substr($data{'a'}, 0, 5, ""), "first"); |
323 | is($data{'a'}, "last"); | |
075a4a2b JH |
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 NC |
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 JH |
336 | |
337 | $x = "\xF1\xF2\xF3"; | |
338 | substr($x, 0, 1) = "\x{100}\x{FF}"; # Ignasi had \x{FF} | |
e198f039 NC |
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 JH |
345 | |
346 | # more utf8 lval exercise | |
347 | ||
348 | $x = "\xF1\xF2\xF3"; | |
349 | substr($x, 0, 2) = "\x{100}\xFF"; | |
e198f039 NC |
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 JH |
355 | |
356 | $x = "\xF1\xF2\xF3"; | |
357 | substr($x, 1, 1) = "\x{100}\xFF"; | |
e198f039 NC |
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 JH |
364 | |
365 | $x = "\xF1\xF2\xF3"; | |
366 | substr($x, 2, 1) = "\x{100}\xFF"; | |
e198f039 NC |
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 JH |
373 | |
374 | $x = "\xF1\xF2\xF3"; | |
375 | substr($x, 3, 1) = "\x{100}\xFF"; | |
e198f039 NC |
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 JH |
383 | |
384 | $x = "\xF1\xF2\xF3"; | |
385 | substr($x, -1, 1) = "\x{100}\xFF"; | |
e198f039 NC |
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 JH |
392 | |
393 | $x = "\xF1\xF2\xF3"; | |
394 | substr($x, -1, 0) = "\x{100}\xFF"; | |
e198f039 NC |
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 JH |
402 | |
403 | $x = "\xF1\xF2\xF3"; | |
404 | substr($x, 0, -1) = "\x{100}\xFF"; | |
e198f039 NC |
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 JH |
410 | |
411 | $x = "\xF1\xF2\xF3"; | |
412 | substr($x, 0, -2) = "\x{100}\xFF"; | |
e198f039 NC |
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 JH |
419 | |
420 | $x = "\xF1\xF2\xF3"; | |
421 | substr($x, 0, -3) = "\x{100}\xFF"; | |
e198f039 NC |
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 JH |
429 | |
430 | $x = "\xF1\xF2\xF3"; | |
431 | substr($x, 1, -1) = "\x{100}\xFF"; | |
e198f039 NC |
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 JH |
438 | |
439 | $x = "\xF1\xF2\xF3"; | |
440 | substr($x, -1, -1) = "\x{100}\xFF"; | |
e198f039 NC |
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 JH |
449 | # And tests for already-UTF8 one |
450 | ||
451 | $x = "\x{101}\x{F2}\x{F3}"; | |
452 | substr($x, 0, 1) = "\x{100}"; | |
e198f039 NC |
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 JH |
458 | |
459 | $x = "\x{101}\x{F2}\x{F3}"; | |
460 | substr($x, 0, 1) = "\x{100}\x{FF}"; | |
e198f039 NC |
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 JH |
467 | |
468 | $x = "\x{101}\x{F2}\x{F3}"; | |
469 | substr($x, 0, 2) = "\x{100}\xFF"; | |
e198f039 NC |
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 JH |
475 | |
476 | $x = "\x{101}\x{F2}\x{F3}"; | |
477 | substr($x, 1, 1) = "\x{100}\xFF"; | |
e198f039 NC |
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 JH |
484 | |
485 | $x = "\x{101}\x{F2}\x{F3}"; | |
486 | substr($x, 2, 1) = "\x{100}\xFF"; | |
e198f039 NC |
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 JH |
493 | |
494 | $x = "\x{101}\x{F2}\x{F3}"; | |
495 | substr($x, 3, 1) = "\x{100}\xFF"; | |
e198f039 NC |
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 JH |
503 | |
504 | $x = "\x{101}\x{F2}\x{F3}"; | |
505 | substr($x, -1, 1) = "\x{100}\xFF"; | |
e198f039 NC |
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 JH |
512 | |
513 | $x = "\x{101}\x{F2}\x{F3}"; | |
514 | substr($x, -1, 0) = "\x{100}\xFF"; | |
e198f039 NC |
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 JH |
522 | |
523 | $x = "\x{101}\x{F2}\x{F3}"; | |
524 | substr($x, 0, -1) = "\x{100}\xFF"; | |
e198f039 NC |
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 JH |
530 | |
531 | $x = "\x{101}\x{F2}\x{F3}"; | |
532 | substr($x, 0, -2) = "\x{100}\xFF"; | |
e198f039 NC |
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 JH |
539 | |
540 | $x = "\x{101}\x{F2}\x{F3}"; | |
541 | substr($x, 0, -3) = "\x{100}\xFF"; | |
e198f039 NC |
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 JH |
549 | |
550 | $x = "\x{101}\x{F2}\x{F3}"; | |
551 | substr($x, 1, -1) = "\x{100}\xFF"; | |
e198f039 NC |
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 JH |
558 | |
559 | $x = "\x{101}\x{F2}\x{F3}"; | |
560 | substr($x, -1, -1) = "\x{100}\xFF"; | |
e198f039 NC |
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($x, 4, 1), "\x{F3}"); | |
f7928d6c JH |
568 | |
569 | substr($x = "ab", 0, 0, "\x{100}\x{200}"); | |
e198f039 | 570 | is($x, "\x{100}\x{200}ab"); |
f7928d6c JH |
571 | |
572 | substr($x = "\x{100}\x{200}", 0, 0, "ab"); | |
e198f039 | 573 | is($x, "ab\x{100}\x{200}"); |
f7928d6c JH |
574 | |
575 | substr($x = "ab", 1, 0, "\x{100}\x{200}"); | |
e198f039 | 576 | is($x, "a\x{100}\x{200}b"); |
f7928d6c JH |
577 | |
578 | substr($x = "\x{100}\x{200}", 1, 0, "ab"); | |
e198f039 | 579 | is($x, "\x{100}ab\x{200}"); |
f7928d6c JH |
580 | |
581 | substr($x = "ab", 2, 0, "\x{100}\x{200}"); | |
e198f039 | 582 | is($x, "ab\x{100}\x{200}"); |
f7928d6c JH |
583 | |
584 | substr($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($x, "\x{100}\x{200}\xFFb"); |
9402d6ed JH |
589 | |
590 | substr($x = "\x{100}\x{200}", 0, 0, "\xFFb"); | |
e198f039 | 591 | is($x, "\xFFb\x{100}\x{200}"); |
9402d6ed JH |
592 | |
593 | substr($x = "\xFFb", 1, 0, "\x{100}\x{200}"); | |
e198f039 | 594 | is($x, "\xFF\x{100}\x{200}b"); |
9402d6ed JH |
595 | |
596 | substr($x = "\x{100}\x{200}", 1, 0, "\xFFb"); | |
e198f039 | 597 | is($x, "\x{100}\xFFb\x{200}"); |
9402d6ed JH |
598 | |
599 | substr($x = "\xFFb", 2, 0, "\x{100}\x{200}"); | |
e198f039 | 600 | is($x, "\xFFb\x{100}\x{200}"); |
9402d6ed JH |
601 | |
602 | substr($x = "\x{100}\x{200}", 2, 0, "\xFFb"); | |
e198f039 | 603 | is($x, "\x{100}\x{200}\xFFb"); |
9402d6ed | 604 | |
24aef97f HS |
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 AE |
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 AE |
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 DM |
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 | $_ = 'XX'; |
e198f039 NC |
636 | is($_, 'XX'); |
637 | is($x, 'aXXef'); | |
c2552146 | 638 | $_ = "\xFF"; |
e198f039 NC |
639 | is($_, "\xFF"); |
640 | is($x, "a\xFFef"); | |
c2552146 | 641 | $_ = "\xF1\xF2\xF3\xF4\xF5\xF6"; |
e198f039 NC |
642 | is($_, "\xF1\xF2\xF3\xF4\xF5\xF6"); |
643 | is($x, "a\xF1\xF2\xF3\xF4\xF5\xF6ef"); | |
c2552146 | 644 | $_ = 'YYYY'; |
e198f039 NC |
645 | is($_, 'YYYY'); |
646 | is($x, 'aYYYYef'); | |
c2552146 DM |
647 | } |
648 | } | |
781e7547 DM |
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 TS |
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 TS |
668 | |
669 | } | |
080534f4 RGS |
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 DM |
677 | |
678 | # [perl #34976] incorrect caching of utf8 substr length | |
679 | { | |
680 | my $a = "abcd\x{100}"; | |
e198f039 NC |
681 | is(substr($a,1,2), 'bc'); |
682 | is(substr($a,1,1), 'b'); | |
ec062429 | 683 | } |
e3faa678 NC |
684 | |
685 | } |