| 1 | #!./perl |
| 2 | |
| 3 | print "1..136\n"; |
| 4 | |
| 5 | #P = start of string Q = start of substr R = end of substr S = end of string |
| 6 | |
| 7 | BEGIN { |
| 8 | chdir 't' if -d 't'; |
| 9 | @INC = '../lib'; |
| 10 | } |
| 11 | use warnings ; |
| 12 | |
| 13 | $a = 'abcdefxyz'; |
| 14 | $SIG{__WARN__} = sub { |
| 15 | if ($_[0] =~ /^substr outside of string/) { |
| 16 | $w++; |
| 17 | } elsif ($_[0] =~ /^Attempt to use reference as lvalue in substr/) { |
| 18 | $w += 2; |
| 19 | } elsif ($_[0] =~ /^Use of uninitialized value/) { |
| 20 | $w += 3; |
| 21 | } else { |
| 22 | warn $_[0]; |
| 23 | } |
| 24 | }; |
| 25 | |
| 26 | sub ok { print (($_[1] ? "" : "not ") . "ok $_[0]\n") } |
| 27 | |
| 28 | $FATAL_MSG = '^substr outside of string' ; |
| 29 | |
| 30 | ok 1, substr($a,0,3) eq 'abc'; # P=Q R S |
| 31 | ok 2, substr($a,3,3) eq 'def'; # P Q R S |
| 32 | ok 3, substr($a,6,999) eq 'xyz'; # P Q S R |
| 33 | $b = substr($a,999,999) ; # warn # P R Q S |
| 34 | ok 4, $w-- == 1 ; |
| 35 | eval{substr($a,999,999) = "" ; };# P R Q S |
| 36 | ok 5, $@ =~ /$FATAL_MSG/; |
| 37 | ok 6, substr($a,0,-6) eq 'abc'; # P=Q R S |
| 38 | ok 7, substr($a,-3,1) eq 'x'; # P Q R S |
| 39 | |
| 40 | $[ = 1; |
| 41 | |
| 42 | ok 8, substr($a,1,3) eq 'abc' ; # P=Q R S |
| 43 | ok 9, substr($a,4,3) eq 'def' ; # P Q R S |
| 44 | ok 10, substr($a,7,999) eq 'xyz';# P Q S R |
| 45 | $b = substr($a,999,999) ; # warn # P R Q S |
| 46 | ok 11, $w-- == 1 ; |
| 47 | eval{substr($a,999,999) = "" ; } ; # P R Q S |
| 48 | ok 12, $@ =~ /$FATAL_MSG/; |
| 49 | ok 13, substr($a,1,-6) eq 'abc' ;# P=Q R S |
| 50 | ok 14, substr($a,-3,1) eq 'x' ; # P Q R S |
| 51 | |
| 52 | $[ = 0; |
| 53 | |
| 54 | substr($a,3,3) = 'XYZ'; |
| 55 | ok 15, $a eq 'abcXYZxyz' ; |
| 56 | substr($a,0,2) = ''; |
| 57 | ok 16, $a eq 'cXYZxyz' ; |
| 58 | substr($a,0,0) = 'ab'; |
| 59 | ok 17, $a eq 'abcXYZxyz' ; |
| 60 | substr($a,0,0) = '12345678'; |
| 61 | ok 18, $a eq '12345678abcXYZxyz' ; |
| 62 | substr($a,-3,3) = 'def'; |
| 63 | ok 19, $a eq '12345678abcXYZdef'; |
| 64 | substr($a,-3,3) = '<'; |
| 65 | ok 20, $a eq '12345678abcXYZ<' ; |
| 66 | substr($a,-1,1) = '12345678'; |
| 67 | ok 21, $a eq '12345678abcXYZ12345678' ; |
| 68 | |
| 69 | $a = 'abcdefxyz'; |
| 70 | |
| 71 | ok 22, substr($a,6) eq 'xyz' ; # P Q R=S |
| 72 | ok 23, substr($a,-3) eq 'xyz' ; # P Q R=S |
| 73 | $b = substr($a,999,999) ; # warning # P R=S Q |
| 74 | ok 24, $w-- == 1 ; |
| 75 | eval{substr($a,999,999) = "" ; } ; # P R=S Q |
| 76 | ok 25, $@ =~ /$FATAL_MSG/; |
| 77 | ok 26, substr($a,0) eq 'abcdefxyz' ; # P=Q R=S |
| 78 | ok 27, substr($a,9) eq '' ; # P Q=R=S |
| 79 | ok 28, substr($a,-11) eq 'abcdefxyz'; # Q P R=S |
| 80 | ok 29, substr($a,-9) eq 'abcdefxyz'; # P=Q R=S |
| 81 | |
| 82 | $a = '54321'; |
| 83 | |
| 84 | $b = substr($a,-7, 1) ; # warn # Q R P S |
| 85 | ok 30, $w-- == 1 ; |
| 86 | eval{substr($a,-7, 1) = "" ; }; # Q R P S |
| 87 | ok 31, $@ =~ /$FATAL_MSG/; |
| 88 | $b = substr($a,-7,-6) ; # warn # Q R P S |
| 89 | ok 32, $w-- == 1 ; |
| 90 | eval{substr($a,-7,-6) = "" ; }; # Q R P S |
| 91 | ok 33, $@ =~ /$FATAL_MSG/; |
| 92 | ok 34, substr($a,-5,-7) eq ''; # R P=Q S |
| 93 | ok 35, substr($a, 2,-7) eq ''; # R P Q S |
| 94 | ok 36, substr($a,-3,-7) eq ''; # R P Q S |
| 95 | ok 37, substr($a, 2,-5) eq ''; # P=R Q S |
| 96 | ok 38, substr($a,-3,-5) eq ''; # P=R Q S |
| 97 | ok 39, substr($a, 2,-4) eq ''; # P R Q S |
| 98 | ok 40, substr($a,-3,-4) eq ''; # P R Q S |
| 99 | ok 41, substr($a, 5,-6) eq ''; # R P Q=S |
| 100 | ok 42, substr($a, 5,-5) eq ''; # P=R Q S |
| 101 | ok 43, substr($a, 5,-3) eq ''; # P R Q=S |
| 102 | $b = substr($a, 7,-7) ; # warn # R P S Q |
| 103 | ok 44, $w-- == 1 ; |
| 104 | eval{substr($a, 7,-7) = "" ; }; # R P S Q |
| 105 | ok 45, $@ =~ /$FATAL_MSG/; |
| 106 | $b = substr($a, 7,-5) ; # warn # P=R S Q |
| 107 | ok 46, $w-- == 1 ; |
| 108 | eval{substr($a, 7,-5) = "" ; }; # P=R S Q |
| 109 | ok 47, $@ =~ /$FATAL_MSG/; |
| 110 | $b = substr($a, 7,-3) ; # warn # P Q S Q |
| 111 | ok 48, $w-- == 1 ; |
| 112 | eval{substr($a, 7,-3) = "" ; }; # P Q S Q |
| 113 | ok 49, $@ =~ /$FATAL_MSG/; |
| 114 | $b = substr($a, 7, 0) ; # warn # P S Q=R |
| 115 | ok 50, $w-- == 1 ; |
| 116 | eval{substr($a, 7, 0) = "" ; }; # P S Q=R |
| 117 | ok 51, $@ =~ /$FATAL_MSG/; |
| 118 | |
| 119 | ok 52, substr($a,-7,2) eq ''; # Q P=R S |
| 120 | ok 53, substr($a,-7,4) eq '54'; # Q P R S |
| 121 | ok 54, substr($a,-7,7) eq '54321';# Q P R=S |
| 122 | ok 55, substr($a,-7,9) eq '54321';# Q P S R |
| 123 | ok 56, substr($a,-5,0) eq ''; # P=Q=R S |
| 124 | ok 57, substr($a,-5,3) eq '543';# P=Q R S |
| 125 | ok 58, substr($a,-5,5) eq '54321';# P=Q R=S |
| 126 | ok 59, substr($a,-5,7) eq '54321';# P=Q S R |
| 127 | ok 60, substr($a,-3,0) eq ''; # P Q=R S |
| 128 | ok 61, substr($a,-3,3) eq '321';# P Q R=S |
| 129 | ok 62, substr($a,-2,3) eq '21'; # P Q S R |
| 130 | ok 63, substr($a,0,-5) eq ''; # P=Q=R S |
| 131 | ok 64, substr($a,2,-3) eq ''; # P Q=R S |
| 132 | ok 65, substr($a,0,0) eq ''; # P=Q=R S |
| 133 | ok 66, substr($a,0,5) eq '54321';# P=Q R=S |
| 134 | ok 67, substr($a,0,7) eq '54321';# P=Q S R |
| 135 | ok 68, substr($a,2,0) eq ''; # P Q=R S |
| 136 | ok 69, substr($a,2,3) eq '321'; # P Q R=S |
| 137 | ok 70, substr($a,5,0) eq ''; # P Q=R=S |
| 138 | ok 71, substr($a,5,2) eq ''; # P Q=S R |
| 139 | ok 72, substr($a,-7,-5) eq ''; # Q P=R S |
| 140 | ok 73, substr($a,-7,-2) eq '543';# Q P R S |
| 141 | ok 74, substr($a,-5,-5) eq ''; # P=Q=R S |
| 142 | ok 75, substr($a,-5,-2) eq '543';# P=Q R S |
| 143 | ok 76, substr($a,-3,-3) eq ''; # P Q=R S |
| 144 | ok 77, substr($a,-3,-1) eq '32';# P Q R S |
| 145 | |
| 146 | $a = ''; |
| 147 | |
| 148 | ok 78, substr($a,-2,2) eq ''; # Q P=R=S |
| 149 | ok 79, substr($a,0,0) eq ''; # P=Q=R=S |
| 150 | ok 80, substr($a,0,1) eq ''; # P=Q=S R |
| 151 | ok 81, substr($a,-2,3) eq ''; # Q P=S R |
| 152 | ok 82, substr($a,-2) eq ''; # Q P=R=S |
| 153 | ok 83, substr($a,0) eq ''; # P=Q=R=S |
| 154 | |
| 155 | |
| 156 | ok 84, substr($a,0,-1) eq ''; # R P=Q=S |
| 157 | $b = substr($a,-2, 0) ; # warn # Q=R P=S |
| 158 | ok 85, $w-- == 1 ; |
| 159 | eval{substr($a,-2, 0) = "" ; }; # Q=R P=S |
| 160 | ok 86, $@ =~ /$FATAL_MSG/; |
| 161 | |
| 162 | $b = substr($a,-2, 1) ; # warn # Q R P=S |
| 163 | ok 87, $w-- == 1 ; |
| 164 | eval{substr($a,-2, 1) = "" ; }; # Q R P=S |
| 165 | ok 88, $@ =~ /$FATAL_MSG/; |
| 166 | |
| 167 | $b = substr($a,-2,-1) ; # warn # Q R P=S |
| 168 | ok 89, $w-- == 1 ; |
| 169 | eval{substr($a,-2,-1) = "" ; }; # Q R P=S |
| 170 | ok 90, $@ =~ /$FATAL_MSG/; |
| 171 | |
| 172 | $b = substr($a,-2,-2) ; # warn # Q=R P=S |
| 173 | ok 91, $w-- == 1 ; |
| 174 | eval{substr($a,-2,-2) = "" ; }; # Q=R P=S |
| 175 | ok 92, $@ =~ /$FATAL_MSG/; |
| 176 | |
| 177 | $b = substr($a, 1,-2) ; # warn # R P=S Q |
| 178 | ok 93, $w-- == 1 ; |
| 179 | eval{substr($a, 1,-2) = "" ; }; # R P=S Q |
| 180 | ok 94, $@ =~ /$FATAL_MSG/; |
| 181 | |
| 182 | $b = substr($a, 1, 1) ; # warn # P=S Q R |
| 183 | ok 95, $w-- == 1 ; |
| 184 | eval{substr($a, 1, 1) = "" ; }; # P=S Q R |
| 185 | ok 96, $@ =~ /$FATAL_MSG/; |
| 186 | |
| 187 | $b = substr($a, 1, 0) ;# warn # P=S Q=R |
| 188 | ok 97, $w-- == 1 ; |
| 189 | eval{substr($a, 1, 0) = "" ; }; # P=S Q=R |
| 190 | ok 98, $@ =~ /$FATAL_MSG/; |
| 191 | |
| 192 | $b = substr($a,1) ; # warning # P=R=S Q |
| 193 | ok 99, $w-- == 1 ; |
| 194 | eval{substr($a,1) = "" ; }; # P=R=S Q |
| 195 | ok 100, $@ =~ /$FATAL_MSG/; |
| 196 | |
| 197 | my $a = 'zxcvbnm'; |
| 198 | substr($a,2,0) = ''; |
| 199 | ok 101, $a eq 'zxcvbnm'; |
| 200 | substr($a,7,0) = ''; |
| 201 | ok 102, $a eq 'zxcvbnm'; |
| 202 | substr($a,5,0) = ''; |
| 203 | ok 103, $a eq 'zxcvbnm'; |
| 204 | substr($a,0,2) = 'pq'; |
| 205 | ok 104, $a eq 'pqcvbnm'; |
| 206 | substr($a,2,0) = 'r'; |
| 207 | ok 105, $a eq 'pqrcvbnm'; |
| 208 | substr($a,8,0) = 'asd'; |
| 209 | ok 106, $a eq 'pqrcvbnmasd'; |
| 210 | substr($a,0,2) = 'iop'; |
| 211 | ok 107, $a eq 'ioprcvbnmasd'; |
| 212 | substr($a,0,5) = 'fgh'; |
| 213 | ok 108, $a eq 'fghvbnmasd'; |
| 214 | substr($a,3,5) = 'jkl'; |
| 215 | ok 109, $a eq 'fghjklsd'; |
| 216 | substr($a,3,2) = '1234'; |
| 217 | ok 110, $a eq 'fgh1234lsd'; |
| 218 | |
| 219 | |
| 220 | # with lexicals (and in re-entered scopes) |
| 221 | for (0,1) { |
| 222 | my $txt; |
| 223 | unless ($_) { |
| 224 | $txt = "Foo"; |
| 225 | substr($txt, -1) = "X"; |
| 226 | ok 111, $txt eq "FoX"; |
| 227 | } |
| 228 | else { |
| 229 | substr($txt, 0, 1) = "X"; |
| 230 | ok 112, $txt eq "X"; |
| 231 | } |
| 232 | } |
| 233 | |
| 234 | $w = 0 ; |
| 235 | # coercion of references |
| 236 | { |
| 237 | my $s = []; |
| 238 | substr($s, 0, 1) = 'Foo'; |
| 239 | ok 113, substr($s,0,7) eq "FooRRAY" && !($w-=2); |
| 240 | } |
| 241 | |
| 242 | # check no spurious warnings |
| 243 | ok 114, $w == 0; |
| 244 | |
| 245 | # check new 4 arg replacement syntax |
| 246 | $a = "abcxyz"; |
| 247 | $w = 0; |
| 248 | ok 115, substr($a, 0, 3, "") eq "abc" && $a eq "xyz"; |
| 249 | ok 116, substr($a, 0, 0, "abc") eq "" && $a eq "abcxyz"; |
| 250 | ok 117, substr($a, 3, -1, "") eq "xy" && $a eq "abcz"; |
| 251 | |
| 252 | ok 118, substr($a, 3, undef, "xy") eq "" && $a eq "abcxyz" |
| 253 | && $w == 3; |
| 254 | |
| 255 | $w = 0; |
| 256 | |
| 257 | ok 119, substr($a, 3, 9999999, "") eq "xyz" && $a eq "abc"; |
| 258 | eval{substr($a, -99, 0, "") }; |
| 259 | ok 120, $@ =~ /$FATAL_MSG/; |
| 260 | eval{substr($a, 99, 3, "") }; |
| 261 | ok 121, $@ =~ /$FATAL_MSG/; |
| 262 | |
| 263 | substr($a, 0, length($a), "foo"); |
| 264 | ok 122, $a eq "foo" && !$w; |
| 265 | |
| 266 | # using 4 arg substr as lvalue is a compile time error |
| 267 | eval 'substr($a,0,0,"") = "abc"'; |
| 268 | ok 123, $@ && $@ =~ /Can't modify substr/ && $a eq "foo"; |
| 269 | |
| 270 | $a = "abcdefgh"; |
| 271 | ok 124, sub { shift }->(substr($a, 0, 4, "xxxx")) eq 'abcd'; |
| 272 | ok 125, $a eq 'xxxxefgh'; |
| 273 | |
| 274 | { |
| 275 | my $y = 10; |
| 276 | $y = "2" . $y; |
| 277 | ok 126, $y+0 == 210; |
| 278 | } |
| 279 | |
| 280 | # utf8 sanity |
| 281 | { |
| 282 | my $x = substr("a\x{263a}b",0); |
| 283 | ok 127, length($x) == 3; |
| 284 | $x = substr($x,1,1); |
| 285 | ok 128, $x eq "\x{263a}"; |
| 286 | $x = $x x 2; |
| 287 | ok 129, length($x) == 2; |
| 288 | substr($x,0,1) = "abcd"; |
| 289 | ok 130, $x eq "abcd\x{263a}"; |
| 290 | ok 131, length($x) == 5; |
| 291 | $x = reverse $x; |
| 292 | ok 132, length($x) == 5; |
| 293 | ok 133, $x eq "\x{263a}dcba"; |
| 294 | |
| 295 | my $z = 10; |
| 296 | $z = "21\x{263a}" . $z; |
| 297 | ok 134, length($z) == 5; |
| 298 | ok 135, $z eq "21\x{263a}10"; |
| 299 | } |
| 300 | |
| 301 | # replacement should work on magical values |
| 302 | require Tie::Scalar; |
| 303 | my %data; |
| 304 | tie $data{'a'}, 'Tie::StdScalar'; # makes $data{'a'} magical |
| 305 | $data{a} = "firstlast"; |
| 306 | ok 136, substr($data{'a'}, 0, 5, "") eq "first" && $data{'a'} eq "last"; |