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|
#!./perl
BEGIN {
require Config;
if (($Config::Config{'extensions'} !~ /\bre\b/) ){
print "1..0 # Skip -- Perl configured without re module\n";
exit 0;
}
require 'loc_tools.pl';
}
use strict;
use Test::More tests => 74;
my @flags = qw( a d l u );
use re '/i';
ok "Foo" =~ /foo/, 'use re "/i"';
ok "Foo" =~ /(??{'foo'})/, 'use re "/i" (??{})';
no re '/i';
ok "Foo" !~ /foo/, 'no re "/i"';
ok "Foo" !~ /(??{'foo'})/, 'no re "/i" (??{})';
use re '/x';
ok "foo" =~ / foo /, 'use re "/x"';
ok "foo" =~ / (??{' foo '}) /, 'use re "/x" (??{})';
like " ", qr/[a b]/, 'use re "/x" [a b]';
no re '/x';
ok "foo" !~ / foo /, 'no re "/x"';
ok "foo" !~ /(??{' foo '})/, 'no re "/x" (??{})';
ok "foo" !~ / (??{'foo'}) /, 'no re "/x" (??{})';
use re '/xx';
ok "foo" =~ / foo /, 'use re "/xx"';
ok "foo" =~ / (??{' foo '}) /, 'use re "/xx" (??{})';
unlike " ", qr/[a b]/, 'use re "/xx" [a b] # Space in [] gobbled up';
no re '/xx';
ok "foo" !~ / foo /, 'no re "/xx"';
ok "foo" !~ /(??{' foo '})/, 'no re "/xx" (??{})';
ok "foo" !~ / (??{'foo'}) /, 'no re "/xx" (??{})';
use re '/s';
ok "\n" =~ /./, 'use re "/s"';
ok "\n" =~ /(??{'.'})/, 'use re "/s" (??{})';
no re '/s';
ok "\n" !~ /./, 'no re "/s"';
ok "\n" !~ /(??{'.'})/, 'no re "/s" (??{})';
use re '/m';
ok "\nfoo" =~ /^foo/, 'use re "/m"';
ok "\nfoo" =~ /(??{'^'})foo/, 'use re "/m" (??{})';
no re '/m';
ok "\nfoo" !~ /^foo/, 'no re "/m"';
ok "\nfoo" !~ /(??{'^'})foo/, 'no re "/m" (??{})';
use re '/xism';
ok qr// =~ /(?=.*x)(?=.*i)(?=.*s)(?=.*m)/, 'use re "/multiple"';
no re '/ix';
ok qr// =~ /(?!.*x)(?!.*i)(?=.*s)(?=.*m)/, 'no re "/i" only turns off /ix';
no re '/sm';
{
use re '/x';
ok 'frelp' =~ /f r e l p/, "use re '/x' in a lexical scope"
}
ok 'f r e l p' =~ /f r e l p/,
"use re '/x' turns off when it drops out of scope";
{
use re '/i';
ok "Foo" =~ /foo/, 'use re "/i"';
no re;
ok "Foo" !~ /foo/, "bare 'no re' reverts to no /i";
use re '/u';
my $nbsp = chr utf8::unicode_to_native(0xa0);
ok $nbsp =~ /\s/, 'nbsp matches \\s under /u';
no re;
ok $nbsp !~ /\s/, "bare 'no re' reverts to /d";
}
SKIP: {
skip "no locale support", 7 unless locales_enabled('CTYPE');
use locale;
use re '/u';
is qr//, '(?^u:)', 'use re "/u" with active locale';
no re '/u';
is qr//, '(?^l:)', 'no re "/u" reverts to /l with locale in scope';
no re '/l';
is qr//, '(?^l:)', 'no re "/l" is a no-op with locale in scope';
use re '/d';
is qr//, '(?^:)', 'use re "/d" with locale in scope';
no re '/l';
no re '/u';
is qr//, '(?^:)',
'no re "/l" and "/u" are no-ops when not on (locale scope)';
no re "/d";
is qr//, '(?^l:)', 'no re "/d" reverts to /l with locale in scope';
use re "/u";
no re "/d";
is qr//, '(?^u:)', 'no re "/d" is a no-op when not on (locale scope)';
}
{
use feature "unicode_strings";
use re '/d';
is qr//, '(?^:)', 'use re "/d" in Unicode scope';
no re '/d';
is qr//, '(?^u:)', 'no re "/d" reverts to /u in Unicode scope';
no re '/u';
is qr//, '(?^u:)', 'no re "/u" is a no-op in Unicode scope';
no re '/d';
is qr//, '(?^u:)', 'no re "/d" is a no-op when not on';
use re '/u';
no feature 'unicode_strings';
is qr//, '(?^u:)', 'use re "/u" is not tied to unicode_strings feature';
}
use re '/u';
is qr//, '(?^u:)', 'use re "/u"';
no re '/u';
is qr//, '(?^:)', 'no re "/u" reverts to /d';
no re '/u';
is qr//, '(?^:)', 'no re "/u" is a no-op when not on';
no re '/d';
is qr//, '(?^:)', 'no re "/d" is a no-op when not on';
{
local $SIG{__WARN__} = sub {
ok $_[0] =~ /Unknown regular expression flag "\x{100}"/,
"warning with unknown regexp flags in use re '/flags'"
};
import re "/\x{100}"
}
# use re '/flags' in combination with explicit flags
use re '/xi';
ok "A\n\n" =~ / a.$/sm, 'use re "/xi" in combination with explicit /sm';
{
use re '/u';
is qr//d, '(?^ix:)', 'explicit /d in re "/u" scope';
use re '/d';
is qr//u, '(?^uix:)', 'explicit /u in re "/d" scope';
}
no re '/x';
# Verify one and two a's work
use re '/ia';
is qr//, '(?^ai:)', 'use re "/ia"';
no re '/ia';
is qr//, '(?^:)', 'no re "/ia"';
use re '/aai';
is qr//, '(?^aai:)', 'use re "/aai"';
no re '/aai';
is qr//, '(?^:)', 'no re "/aai"';
# use re "/adul" combinations
{
my $w;
local $SIG{__WARN__} = sub { $w = shift };
for my $i (@flags) {
for my $j (@flags) {
$w = "";
eval "use re '/$i$j'";
if ($i eq $j) {
if ($i eq 'a') {
is ($w, "", "no warning with use re \"/aa\", $w");
}
else {
like $w, qr/The \"$i\" flag may not appear twice/,
"warning with use re \"/$i$i\"";
}
}
else {
if ($j =~ /$i/) {
# If one is a subset of the other, re.pm uses the longest one.
like $w, qr/The "$j" and "$i" flags are exclusive/,
"warning with eval \"use re \"/$j$i\"";
}
else {
like $w, qr/The "$i" and "$j" flags are exclusive/,
"warning with eval \"use re \"/$i$j\"";
}
}
}
}
$w = "";
eval "use re '/amaa'";
like $w, qr/The "a" flag may only appear a maximum of twice/,
"warning with eval \"use re \"/amaa\"";
$w = "";
eval "use re '/xamaxx'";
like $w, qr/The "x" flag may only appear a maximum of twice/,
"warning with eval \"use re \"/xamaxx\"";
}
|
