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|
#!./perl
BEGIN {
chdir 't' if -d 't';
@INC = '../lib';
require './test.pl';
}
plan tests => 139;
$_ = 'abc';
$c = do foo();
is ($c . $_, 'cab', 'optimized');
$_ = 'abc';
$c = chop($_);
is ($c . $_ , 'cab', 'unoptimized');
sub foo {
chop;
}
@foo = ("hi \n","there\n","!\n");
@bar = @foo;
chop(@bar);
is (join('',@bar), 'hi there!');
$foo = "\n";
chop($foo,@foo);
is (join('',$foo,@foo), 'hi there!');
$_ = "foo\n\n";
$got = chomp();
ok ($got == 1) or print "# got $got\n";
is ($_, "foo\n");
$_ = "foo\n";
$got = chomp();
ok ($got == 1) or print "# got $got\n";
is ($_, "foo");
$_ = "foo";
$got = chomp();
ok ($got == 0) or print "# got $got\n";
is ($_, "foo");
$_ = "foo";
$/ = "oo";
$got = chomp();
ok ($got == 2) or print "# got $got\n";
is ($_, "f");
$_ = "bar";
$/ = "oo";
$got = chomp();
ok ($got == 0) or print "# got $got\n";
is ($_, "bar");
$_ = "f\n\n\n\n\n";
$/ = "";
$got = chomp();
ok ($got == 5) or print "# got $got\n";
is ($_, "f");
$_ = "f\n\n";
$/ = "";
$got = chomp();
ok ($got == 2) or print "# got $got\n";
is ($_, "f");
$_ = "f\n";
$/ = "";
$got = chomp();
ok ($got == 1) or print "# got $got\n";
is ($_, "f");
$_ = "f";
$/ = "";
$got = chomp();
ok ($got == 0) or print "# got $got\n";
is ($_, "f");
$_ = "xx";
$/ = "xx";
$got = chomp();
ok ($got == 2) or print "# got $got\n";
is ($_, "");
$_ = "axx";
$/ = "xx";
$got = chomp();
ok ($got == 2) or print "# got $got\n";
is ($_, "a");
$_ = "axx";
$/ = "yy";
$got = chomp();
ok ($got == 0) or print "# got $got\n";
is ($_, "axx");
# This case once mistakenly behaved like paragraph mode.
$_ = "ab\n";
$/ = \3;
$got = chomp();
ok ($got == 0) or print "# got $got\n";
is ($_, "ab\n");
# Go Unicode.
$_ = "abc\x{1234}";
chop;
is ($_, "abc", "Go Unicode");
$_ = "abc\x{1234}d";
chop;
is ($_, "abc\x{1234}");
$_ = "\x{1234}\x{2345}";
chop;
is ($_, "\x{1234}");
my @stuff = qw(this that);
is (chop(@stuff[0,1]), 't');
# bug id 20010305.012
@stuff = qw(ab cd ef);
is (chop(@stuff = @stuff), 'f');
@stuff = qw(ab cd ef);
is (chop(@stuff[0, 2]), 'f');
my %stuff = (1..4);
is (chop(@stuff{1, 3}), '4');
# chomp should not stringify references unless it decides to modify them
$_ = [];
$/ = "\n";
$got = chomp();
ok ($got == 0) or print "# got $got\n";
is (ref($_), "ARRAY", "chomp ref (modify)");
$/ = ")"; # the last char of something like "ARRAY(0x80ff6e4)"
$got = chomp();
ok ($got == 1) or print "# got $got\n";
ok (!ref($_), "chomp ref (no modify)");
$/ = "\n";
%chomp = ("One" => "One", "Two\n" => "Two", "" => "");
%chop = ("One" => "On", "Two\n" => "Two", "" => "");
foreach (keys %chomp) {
my $key = $_;
eval {chomp $_};
if ($@) {
my $err = $@;
$err =~ s/\n$//s;
fail ("\$\@ = \"$err\"");
} else {
is ($_, $chomp{$key}, "chomp hash key");
}
}
foreach (keys %chop) {
my $key = $_;
eval {chop $_};
if ($@) {
my $err = $@;
$err =~ s/\n$//s;
fail ("\$\@ = \"$err\"");
} else {
is ($_, $chop{$key}, "chop hash key");
}
}
# chop and chomp can't be lvalues
eval 'chop($x) = 1;';
ok($@ =~ /Can\'t modify.*chop.*in.*assignment/);
eval 'chomp($x) = 1;';
ok($@ =~ /Can\'t modify.*chom?p.*in.*assignment/);
eval 'chop($x, $y) = (1, 2);';
ok($@ =~ /Can\'t modify.*chop.*in.*assignment/);
eval 'chomp($x, $y) = (1, 2);';
ok($@ =~ /Can\'t modify.*chom?p.*in.*assignment/);
my @chars = ("N", "\xd3", substr ("\xd4\x{100}", 0, 1), chr 1296);
foreach my $start (@chars) {
foreach my $end (@chars) {
local $/ = $end;
my $message = "start=" . ord ($start) . " end=" . ord $end;
my $string = $start . $end;
is (chomp ($string), 1, "$message [returns 1]");
is ($string, $start, $message);
my $end_utf8 = $end;
utf8::encode ($end_utf8);
next if $end_utf8 eq $end;
# $end ne $end_utf8, so these should not chomp.
$string = $start . $end_utf8;
my $chomped = $string;
is (chomp ($chomped), 0, "$message (end as bytes) [returns 0]");
is ($chomped, $string, "$message (end as bytes)");
$/ = $end_utf8;
$string = $start . $end;
$chomped = $string;
is (chomp ($chomped), 0, "$message (\$/ as bytes) [returns 0]");
is ($chomped, $string, "$message (\$/ as bytes)");
}
}
{
# returns length in characters, but not in bytes.
$/ = "\x{100}";
$a = "A$/";
$b = chomp $a;
is ($b, 1);
$/ = "\x{100}\x{101}";
$a = "A$/";
$b = chomp $a;
is ($b, 2);
}
{
# [perl #36569] chop fails on decoded string with trailing nul
my $asc = "perl\0";
my $utf = "perl".pack('U',0); # marked as utf8
is(chop($asc), "\0", "chopping ascii NUL");
is(chop($utf), "\0", "chopping utf8 NUL");
is($asc, "perl", "chopped ascii NUL");
is($utf, "perl", "chopped utf8 NUL");
}
{
# Change 26011: Re: A surprising segfault
# to make sure only that these obfuscated sentences will not crash.
map chop(+()), ('')x68;
ok(1, "extend sp in pp_chop");
map chomp(+()), ('')x68;
ok(1, "extend sp in pp_chomp");
}
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