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 | ||
777f7c56 | 27 | plan(360); |
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 | 203 | |
777f7c56 EB |
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 TB |
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 NC |
251 | is (substr($s,0,7), "FooRRAY"); |
252 | is ($w,2); | |
253 | $w = 0; | |
08cb0b0d | 254 | } |
84902520 TB |
255 | |
256 | # check no spurious warnings | |
e198f039 | 257 | is($w, 0); |
7b8d334a | 258 | |
5d82c453 | 259 | # check new 4 arg replacement syntax |
7b8d334a | 260 | $a = "abcxyz"; |
5d82c453 | 261 | $w = 0; |
e198f039 NC |
262 | is(substr($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($a, "abcz"); | |
e476b1b5 | 268 | |
e198f039 NC |
269 | is(substr($a, 3, undef, "xy"), ""); |
270 | is($a, "abcxyz"); | |
271 | is($w, 3); | |
e476b1b5 | 272 | |
5d82c453 GA |
273 | $w = 0; |
274 | ||
e198f039 NC |
275 | is(substr($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($@, $FATAL_MSG); |
5d82c453 GA |
281 | |
282 | substr($a, 0, length($a), "foo"); | |
e198f039 NC |
283 | is ($a, "foo"); |
284 | is ($w, 0); | |
5d82c453 GA |
285 | |
286 | # using 4 arg substr as lvalue is a compile time error | |
287 | eval 'substr($a,0,0,"") = "abc"'; | |
e198f039 NC |
288 | like ($@, qr/Can't modify substr/); |
289 | is ($a, "foo"); | |
c8faf1c5 GS |
290 | |
291 | $a = "abcdefgh"; | |
e198f039 NC |
292 | is(sub { shift }->(substr($a, 0, 4, "xxxx")), 'abcd'); |
293 | is($a, 'xxxxefgh'); | |
7f66633b | 294 | |
e84ff256 GS |
295 | { |
296 | my $y = 10; | |
297 | $y = "2" . $y; | |
e198f039 | 298 | is ($y, 210); |
e84ff256 GS |
299 | } |
300 | ||
7f66633b GS |
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($x,0,1) = "abcd"; |
e198f039 NC |
310 | is($x, "abcd\x{263a}"); |
311 | is(length($x), 5); | |
e84ff256 | 312 | $x = reverse $x; |
e198f039 NC |
313 | is(length($x), 5); |
314 | is($x, "\x{263a}dcba"); | |
e84ff256 GS |
315 | |
316 | my $z = 10; | |
317 | $z = "21\x{263a}" . $z; | |
e198f039 NC |
318 | is(length($z), 5); |
319 | is($z, "21\x{263a}10"); | |
7f66633b | 320 | } |
35fba0d9 RG |
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 | $data{a} = "firstlast"; | |
e198f039 NC |
327 | is(substr($data{'a'}, 0, 5, ""), "first"); |
328 | is($data{'a'}, "last"); | |
075a4a2b JH |
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 NC |
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 JH |
341 | |
342 | $x = "\xF1\xF2\xF3"; | |
343 | substr($x, 0, 1) = "\x{100}\x{FF}"; # Ignasi had \x{FF} | |
e198f039 NC |
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 JH |
350 | |
351 | # more utf8 lval exercise | |
352 | ||
353 | $x = "\xF1\xF2\xF3"; | |
354 | substr($x, 0, 2) = "\x{100}\xFF"; | |
e198f039 NC |
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 JH |
360 | |
361 | $x = "\xF1\xF2\xF3"; | |
362 | substr($x, 1, 1) = "\x{100}\xFF"; | |
e198f039 NC |
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 JH |
369 | |
370 | $x = "\xF1\xF2\xF3"; | |
371 | substr($x, 2, 1) = "\x{100}\xFF"; | |
e198f039 NC |
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 JH |
378 | |
379 | $x = "\xF1\xF2\xF3"; | |
380 | substr($x, 3, 1) = "\x{100}\xFF"; | |
e198f039 NC |
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 JH |
388 | |
389 | $x = "\xF1\xF2\xF3"; | |
390 | substr($x, -1, 1) = "\x{100}\xFF"; | |
e198f039 NC |
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 JH |
397 | |
398 | $x = "\xF1\xF2\xF3"; | |
399 | substr($x, -1, 0) = "\x{100}\xFF"; | |
e198f039 NC |
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 JH |
407 | |
408 | $x = "\xF1\xF2\xF3"; | |
409 | substr($x, 0, -1) = "\x{100}\xFF"; | |
e198f039 NC |
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 JH |
415 | |
416 | $x = "\xF1\xF2\xF3"; | |
417 | substr($x, 0, -2) = "\x{100}\xFF"; | |
e198f039 NC |
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 JH |
424 | |
425 | $x = "\xF1\xF2\xF3"; | |
426 | substr($x, 0, -3) = "\x{100}\xFF"; | |
e198f039 NC |
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 JH |
434 | |
435 | $x = "\xF1\xF2\xF3"; | |
436 | substr($x, 1, -1) = "\x{100}\xFF"; | |
e198f039 NC |
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 JH |
443 | |
444 | $x = "\xF1\xF2\xF3"; | |
445 | substr($x, -1, -1) = "\x{100}\xFF"; | |
e198f039 NC |
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 JH |
454 | # And tests for already-UTF8 one |
455 | ||
456 | $x = "\x{101}\x{F2}\x{F3}"; | |
457 | substr($x, 0, 1) = "\x{100}"; | |
e198f039 NC |
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 JH |
463 | |
464 | $x = "\x{101}\x{F2}\x{F3}"; | |
465 | substr($x, 0, 1) = "\x{100}\x{FF}"; | |
e198f039 NC |
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 JH |
472 | |
473 | $x = "\x{101}\x{F2}\x{F3}"; | |
474 | substr($x, 0, 2) = "\x{100}\xFF"; | |
e198f039 NC |
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 JH |
480 | |
481 | $x = "\x{101}\x{F2}\x{F3}"; | |
482 | substr($x, 1, 1) = "\x{100}\xFF"; | |
e198f039 NC |
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 JH |
489 | |
490 | $x = "\x{101}\x{F2}\x{F3}"; | |
491 | substr($x, 2, 1) = "\x{100}\xFF"; | |
e198f039 NC |
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 JH |
498 | |
499 | $x = "\x{101}\x{F2}\x{F3}"; | |
500 | substr($x, 3, 1) = "\x{100}\xFF"; | |
e198f039 NC |
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 JH |
508 | |
509 | $x = "\x{101}\x{F2}\x{F3}"; | |
510 | substr($x, -1, 1) = "\x{100}\xFF"; | |
e198f039 NC |
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 JH |
517 | |
518 | $x = "\x{101}\x{F2}\x{F3}"; | |
519 | substr($x, -1, 0) = "\x{100}\xFF"; | |
e198f039 NC |
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 JH |
527 | |
528 | $x = "\x{101}\x{F2}\x{F3}"; | |
529 | substr($x, 0, -1) = "\x{100}\xFF"; | |
e198f039 NC |
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 JH |
535 | |
536 | $x = "\x{101}\x{F2}\x{F3}"; | |
537 | substr($x, 0, -2) = "\x{100}\xFF"; | |
e198f039 NC |
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 JH |
544 | |
545 | $x = "\x{101}\x{F2}\x{F3}"; | |
546 | substr($x, 0, -3) = "\x{100}\xFF"; | |
e198f039 NC |
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 JH |
554 | |
555 | $x = "\x{101}\x{F2}\x{F3}"; | |
556 | substr($x, 1, -1) = "\x{100}\xFF"; | |
e198f039 NC |
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 JH |
563 | |
564 | $x = "\x{101}\x{F2}\x{F3}"; | |
565 | substr($x, -1, -1) = "\x{100}\xFF"; | |
e198f039 NC |
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($x, 4, 1), "\x{F3}"); | |
f7928d6c JH |
573 | |
574 | substr($x = "ab", 0, 0, "\x{100}\x{200}"); | |
e198f039 | 575 | is($x, "\x{100}\x{200}ab"); |
f7928d6c JH |
576 | |
577 | substr($x = "\x{100}\x{200}", 0, 0, "ab"); | |
e198f039 | 578 | is($x, "ab\x{100}\x{200}"); |
f7928d6c JH |
579 | |
580 | substr($x = "ab", 1, 0, "\x{100}\x{200}"); | |
e198f039 | 581 | is($x, "a\x{100}\x{200}b"); |
f7928d6c JH |
582 | |
583 | substr($x = "\x{100}\x{200}", 1, 0, "ab"); | |
e198f039 | 584 | is($x, "\x{100}ab\x{200}"); |
f7928d6c JH |
585 | |
586 | substr($x = "ab", 2, 0, "\x{100}\x{200}"); | |
e198f039 | 587 | is($x, "ab\x{100}\x{200}"); |
f7928d6c JH |
588 | |
589 | substr($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($x, "\x{100}\x{200}\xFFb"); |
9402d6ed JH |
594 | |
595 | substr($x = "\x{100}\x{200}", 0, 0, "\xFFb"); | |
e198f039 | 596 | is($x, "\xFFb\x{100}\x{200}"); |
9402d6ed JH |
597 | |
598 | substr($x = "\xFFb", 1, 0, "\x{100}\x{200}"); | |
e198f039 | 599 | is($x, "\xFF\x{100}\x{200}b"); |
9402d6ed JH |
600 | |
601 | substr($x = "\x{100}\x{200}", 1, 0, "\xFFb"); | |
e198f039 | 602 | is($x, "\x{100}\xFFb\x{200}"); |
9402d6ed JH |
603 | |
604 | substr($x = "\xFFb", 2, 0, "\x{100}\x{200}"); | |
e198f039 | 605 | is($x, "\xFFb\x{100}\x{200}"); |
9402d6ed JH |
606 | |
607 | substr($x = "\x{100}\x{200}", 2, 0, "\xFFb"); | |
e198f039 | 608 | is($x, "\x{100}\x{200}\xFFb"); |
9402d6ed | 609 | |
24aef97f HS |
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 AE |
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 AE |
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 DM |
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 | $_ = 'XX'; |
e198f039 NC |
641 | is($_, 'XX'); |
642 | is($x, 'aXXef'); | |
c2552146 | 643 | $_ = "\xFF"; |
e198f039 NC |
644 | is($_, "\xFF"); |
645 | is($x, "a\xFFef"); | |
c2552146 | 646 | $_ = "\xF1\xF2\xF3\xF4\xF5\xF6"; |
e198f039 NC |
647 | is($_, "\xF1\xF2\xF3\xF4\xF5\xF6"); |
648 | is($x, "a\xF1\xF2\xF3\xF4\xF5\xF6ef"); | |
c2552146 | 649 | $_ = 'YYYY'; |
e198f039 NC |
650 | is($_, 'YYYY'); |
651 | is($x, 'aYYYYef'); | |
c2552146 DM |
652 | } |
653 | } | |
781e7547 DM |
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 TS |
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 TS |
673 | |
674 | } | |
080534f4 RGS |
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 DM |
682 | |
683 | # [perl #34976] incorrect caching of utf8 substr length | |
684 | { | |
685 | my $a = "abcd\x{100}"; | |
e198f039 NC |
686 | is(substr($a,1,2), 'bc'); |
687 | is(substr($a,1,1), 'b'); | |
ec062429 | 688 | } |
e3faa678 | 689 | |
777f7c56 EB |
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 | } |