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1 | #!./perl |
2 | |
79072805 |
3 | # $RCSfile: substr.t,v $$Revision: 4.1 $$Date: 92/08/07 18:28:31 $ |
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4 | |
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5 | print "1..97\n"; |
6 | |
7 | #P = start of string Q = start of substr R = end of substr S = end of string |
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8 | |
9 | $a = 'abcdefxyz'; |
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10 | BEGIN { $^W = 1 }; |
11 | |
12 | $SIG{__WARN__} = sub { |
13 | if ($_[0] =~ /^substr outside of string/) { |
14 | $w++; |
15 | } elsif ($_[0] =~ /^Attempt to use reference as lvalue in substr/) { |
16 | $w += 2; |
17 | } else { |
18 | warn @_; |
19 | } |
20 | }; |
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21 | |
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22 | sub fail { !defined(shift) && $w-- }; |
23 | |
24 | print (substr($a,0,3) eq 'abc' ? "ok 1\n" : "not ok 1\n"); # P=Q R S |
25 | print (substr($a,3,3) eq 'def' ? "ok 2\n" : "not ok 2\n"); # P Q R S |
26 | print (substr($a,6,999) eq 'xyz' ? "ok 3\n" : "not ok 3\n"); # P Q S R |
27 | print (fail(substr($a,999,999)) ? "ok 4\n" : "not ok 4\n"); # P R Q S |
28 | print (substr($a,0,-6) eq 'abc' ? "ok 5\n" : "not ok 5\n"); # P=Q R S |
29 | print (substr($a,-3,1) eq 'x' ? "ok 6\n" : "not ok 6\n"); # P Q R S |
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30 | |
31 | $[ = 1; |
32 | |
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33 | print (substr($a,1,3) eq 'abc' ? "ok 7\n" : "not ok 7\n"); # P=Q R S |
34 | print (substr($a,4,3) eq 'def' ? "ok 8\n" : "not ok 8\n"); # P Q R S |
35 | print (substr($a,7,999) eq 'xyz' ? "ok 9\n" : "not ok 9\n"); # P Q S R |
36 | print (fail(substr($a,999,999)) ? "ok 10\n" : "not ok 10\n");# P R Q S |
37 | print (substr($a,1,-6) eq 'abc' ? "ok 11\n" : "not ok 11\n");# P=Q R S |
38 | print (substr($a,-3,1) eq 'x' ? "ok 12\n" : "not ok 12\n"); # P Q R S |
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39 | |
40 | $[ = 0; |
41 | |
42 | substr($a,3,3) = 'XYZ'; |
43 | print $a eq 'abcXYZxyz' ? "ok 13\n" : "not ok 13\n"; |
44 | substr($a,0,2) = ''; |
45 | print $a eq 'cXYZxyz' ? "ok 14\n" : "not ok 14\n"; |
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46 | substr($a,0,0) = 'ab'; |
47 | print $a eq 'abcXYZxyz' ? "ok 15\n" : "not ok 15 $a\n"; |
48 | substr($a,0,0) = '12345678'; |
49 | print $a eq '12345678abcXYZxyz' ? "ok 16\n" : "not ok 16\n"; |
50 | substr($a,-3,3) = 'def'; |
51 | print $a eq '12345678abcXYZdef' ? "ok 17\n" : "not ok 17\n"; |
52 | substr($a,-3,3) = '<'; |
53 | print $a eq '12345678abcXYZ<' ? "ok 18\n" : "not ok 18\n"; |
54 | substr($a,-1,1) = '12345678'; |
55 | print $a eq '12345678abcXYZ12345678' ? "ok 19\n" : "not ok 19\n"; |
56 | |
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57 | $a = 'abcdefxyz'; |
58 | |
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59 | print (substr($a,6) eq 'xyz' ? "ok 20\n" : "not ok 20\n"); # P Q R=S |
60 | print (substr($a,-3) eq 'xyz' ? "ok 21\n" : "not ok 21\n"); # P Q R=S |
61 | print (fail(substr($a,999)) ? "ok 22\n" : "not ok 22\n"); # P R=S Q |
62 | print (substr($a,0) eq 'abcdefxyz' ? "ok 23\n" : "not ok 23\n");# P=Q R=S |
63 | print (substr($a,9) eq '' ? "ok 24\n" : "not ok 24\n"); # P Q=R=S |
64 | print (substr($a,-11) eq 'abcdefxyz' ? "ok 25\n" : "not ok 25\n");# Q P R=S |
65 | print (substr($a,-9) eq 'abcdefxyz' ? "ok 26\n" : "not ok 26\n"); # P=Q R=S |
66 | |
67 | $a = '54321'; |
68 | |
69 | print (fail(substr($a,-7, 1)) ? "ok 27\n" : "not ok 27\n"); # Q R P S |
70 | print (fail(substr($a,-7,-6)) ? "ok 28\n" : "not ok 28\n"); # Q R P S |
71 | print (substr($a,-5,-7) eq '' ? "ok 29\n" : "not ok 29\n"); # R P=Q S |
72 | print (substr($a, 2,-7) eq '' ? "ok 30\n" : "not ok 30\n"); # R P Q S |
73 | print (substr($a,-3,-7) eq '' ? "ok 31\n" : "not ok 31\n"); # R P Q S |
74 | print (substr($a, 2,-5) eq '' ? "ok 32\n" : "not ok 32\n"); # P=R Q S |
75 | print (substr($a,-3,-5) eq '' ? "ok 33\n" : "not ok 33\n"); # P=R Q S |
76 | print (substr($a, 2,-4) eq '' ? "ok 34\n" : "not ok 34\n"); # P R Q S |
77 | print (substr($a,-3,-4) eq '' ? "ok 35\n" : "not ok 35\n"); # P R Q S |
78 | print (substr($a, 5,-6) eq '' ? "ok 36\n" : "not ok 36\n"); # R P Q=S |
79 | print (substr($a, 5,-5) eq '' ? "ok 37\n" : "not ok 37\n"); # P=R Q S |
80 | print (substr($a, 5,-3) eq '' ? "ok 38\n" : "not ok 38\n"); # P R Q=S |
81 | print (fail(substr($a, 7,-7)) ? "ok 39\n" : "not ok 39\n"); # R P S Q |
82 | print (fail(substr($a, 7,-5)) ? "ok 40\n" : "not ok 40\n"); # P=R S Q |
83 | print (fail(substr($a, 7,-3)) ? "ok 41\n" : "not ok 41\n"); # P R S Q |
84 | print (fail(substr($a, 7, 0)) ? "ok 42\n" : "not ok 42\n"); # P S Q=R |
85 | |
86 | print (substr($a,-7,2) eq '' ? "ok 43\n" : "not ok 43\n"); # Q P=R S |
87 | print (substr($a,-7,4) eq '54' ? "ok 44\n" : "not ok 44\n"); # Q P R S |
88 | print (substr($a,-7,7) eq '54321' ? "ok 45\n" : "not ok 45\n");# Q P R=S |
89 | print (substr($a,-7,9) eq '54321' ? "ok 46\n" : "not ok 46\n");# Q P S R |
90 | print (substr($a,-5,0) eq '' ? "ok 47\n" : "not ok 47\n"); # P=Q=R S |
91 | print (substr($a,-5,3) eq '543' ? "ok 48\n" : "not ok 48\n");# P=Q R S |
92 | print (substr($a,-5,5) eq '54321' ? "ok 49\n" : "not ok 49\n");# P=Q R=S |
93 | print (substr($a,-5,7) eq '54321' ? "ok 50\n" : "not ok 50\n");# P=Q S R |
94 | print (substr($a,-3,0) eq '' ? "ok 51\n" : "not ok 51\n"); # P Q=R S |
95 | print (substr($a,-3,3) eq '321' ? "ok 52\n" : "not ok 52\n");# P Q R=S |
96 | print (substr($a,-2,3) eq '21' ? "ok 53\n" : "not ok 53\n"); # P Q S R |
97 | print (substr($a,0,-5) eq '' ? "ok 54\n" : "not ok 54\n"); # P=Q=R S |
98 | print (substr($a,2,-3) eq '' ? "ok 55\n" : "not ok 55\n"); # P Q=R S |
99 | print (substr($a,0,0) eq '' ? "ok 56\n" : "not ok 56\n"); # P=Q=R S |
100 | print (substr($a,0,5) eq '54321' ? "ok 57\n" : "not ok 57\n");# P=Q R=S |
101 | print (substr($a,0,7) eq '54321' ? "ok 58\n" : "not ok 58\n");# P=Q S R |
102 | print (substr($a,2,0) eq '' ? "ok 59\n" : "not ok 59\n"); # P Q=R S |
103 | print (substr($a,2,3) eq '321' ? "ok 60\n" : "not ok 60\n"); # P Q R=S |
104 | print (substr($a,5,0) eq '' ? "ok 61\n" : "not ok 61\n"); # P Q=R=S |
105 | print (substr($a,5,2) eq '' ? "ok 62\n" : "not ok 62\n"); # P Q=S R |
106 | print (substr($a,-7,-5) eq '' ? "ok 63\n" : "not ok 63\n"); # Q P=R S |
107 | print (substr($a,-7,-2) eq '543' ? "ok 64\n" : "not ok 64\n");# Q P R S |
108 | print (substr($a,-5,-5) eq '' ? "ok 65\n" : "not ok 65\n"); # P=Q=R S |
109 | print (substr($a,-5,-2) eq '543' ? "ok 66\n" : "not ok 66\n");# P=Q R S |
110 | print (substr($a,-3,-3) eq '' ? "ok 67\n" : "not ok 67\n"); # P Q=R S |
111 | print (substr($a,-3,-1) eq '32' ? "ok 68\n" : "not ok 68\n");# P Q R S |
112 | |
113 | $a = ''; |
114 | |
115 | print (substr($a,-2,2) eq '' ? "ok 69\n" : "not ok 69\n"); # Q P=R=S |
116 | print (substr($a,0,0) eq '' ? "ok 70\n" : "not ok 70\n"); # P=Q=R=S |
117 | print (substr($a,0,1) eq '' ? "ok 71\n" : "not ok 71\n"); # P=Q=S R |
118 | print (substr($a,-2,3) eq '' ? "ok 72\n" : "not ok 72\n"); # Q P=S R |
119 | print (substr($a,-2) eq '' ? "ok 73\n" : "not ok 73\n"); # Q P=R=S |
120 | print (substr($a,0) eq '' ? "ok 74\n" : "not ok 74\n"); # P=Q=R=S |
121 | |
122 | |
123 | print (substr($a,0,-1) eq '' ? "ok 75\n" : "not ok 75\n"); # R P=Q=S |
124 | print (fail(substr($a,-2,0)) ? "ok 76\n" : "not ok 76\n"); # Q=R P=S |
125 | print (fail(substr($a,-2,1)) ? "ok 77\n" : "not ok 77\n"); # Q R P=S |
126 | print (fail(substr($a,-2,-1)) ? "ok 78\n" : "not ok 78\n"); # Q R P=S |
127 | print (fail(substr($a,-2,-2)) ? "ok 79\n" : "not ok 79\n"); # Q=R P=S |
128 | print (fail(substr($a,1,-2)) ? "ok 80\n" : "not ok 81\n"); # R P=S Q |
129 | print (fail(substr($a,1,1)) ? "ok 81\n" : "not ok 81\n"); # P=S Q R |
130 | print (fail(substr($a,1,0)) ? "ok 82\n" : "not ok 82\n"); # P=S Q=R |
131 | print (fail(substr($a,1)) ? "ok 83\n" : "not ok 83\n"); # P=R=S Q |
132 | |
133 | |
134 | my $a = 'zxcvbnm'; |
135 | substr($a,2,0) = ''; |
136 | print $a eq 'zxcvbnm' ? "ok 84\n" : "not ok 84\n"; |
137 | substr($a,7,0) = ''; |
138 | print $a eq 'zxcvbnm' ? "ok 85\n" : "not ok 85\n"; |
139 | substr($a,5,0) = ''; |
140 | print $a eq 'zxcvbnm' ? "ok 86\n" : "not ok 86\n"; |
141 | substr($a,0,2) = 'pq'; |
142 | print $a eq 'pqcvbnm' ? "ok 87\n" : "not ok 87\n"; |
143 | substr($a,2,0) = 'r'; |
144 | print $a eq 'pqrcvbnm' ? "ok 88\n" : "not ok 88\n"; |
145 | substr($a,8,0) = 'asd'; |
146 | print $a eq 'pqrcvbnmasd' ? "ok 89\n" : "not ok 89\n"; |
147 | substr($a,0,2) = 'iop'; |
148 | print $a eq 'ioprcvbnmasd' ? "ok 90\n" : "not ok 90\n"; |
149 | substr($a,0,5) = 'fgh'; |
150 | print $a eq 'fghvbnmasd' ? "ok 91\n" : "not ok 91\n"; |
151 | substr($a,3,5) = 'jkl'; |
152 | print $a eq 'fghjklsd' ? "ok 92\n" : "not ok 92\n"; |
153 | substr($a,3,2) = '1234'; |
154 | print $a eq 'fgh1234lsd' ? "ok 93\n" : "not ok 93\n"; |
155 | |
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156 | |
157 | # with lexicals (and in re-entered scopes) |
158 | for (0,1) { |
159 | my $txt; |
160 | unless ($_) { |
161 | $txt = "Foo"; |
162 | substr($txt, -1) = "X"; |
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163 | print $txt eq "FoX" ? "ok 94\n" : "not ok 94\n"; |
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164 | } |
165 | else { |
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166 | local $^W = 0; # because of (spurious?) "uninitialised value" |
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167 | substr($txt, 0, 1) = "X"; |
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168 | print $txt eq "X" ? "ok 95\n" : "not ok 95\n"; |
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169 | } |
170 | } |
171 | |
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172 | # coercion of references |
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173 | { |
174 | my $s = []; |
175 | substr($s, 0, 1) = 'Foo'; |
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176 | print substr($s,0,7) eq "FooRRAY" && !($w-=2) ? "ok 96\n" : "not ok 96\n"; |
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177 | } |
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178 | |
179 | # check no spurious warnings |
180 | print $w ? "not ok 97\n" : "ok 97\n"; |