Bug in one or more quantifier since PCRE10.35/PHP7.4.12

[mickmackusa]

Reproduce with: 3v4l Demo

$txt = <<<TEXT
foo {
     A
}

foo {
     A
}

foo {
     B
}

foo {
     A
}

foo {
     C
}
TEXT;
echo preg_replace('/\R{0,2}.+{[^}]*A[^}]*}/', '', $txt);

Expected Result:

foo {
     B
}

foo {
     C
}

Actual Result:

foo {
     B
}

foo {
     A
}

foo {
     C
}

[cmb69]

I can reproduce this with pcre2test (build form 3e52db5):

cmb@ELEPHPANT:~$ pcre2test test.txt
PCRE2 version 10.41 2022-xx-xx
/\n{0,2}.+{[^}]*A[^}]*}/g
foo {\n    A\n}\n\nfoo {\n    A\n}\n\nfoo {\n    B\n}\n\nfoo {\n    A\n}\n\nfoo {\n    C\n}
 0: foo {\x0a    A\x0a}
 0: \x0a\x0afoo {\x0a    A\x0a}
 0: \x0a\x0afoo {\x0a    A\x0a}
cmb@ELEPHPANT:~$ pcre2test -jit test.txt
PCRE2 version 10.41 2022-xx-xx
/\n{0,2}.+{[^}]*A[^}]*}/g
foo {\n    A\n}\n\nfoo {\n    A\n}\n\nfoo {\n    B\n}\n\nfoo {\n    A\n}\n\nfoo {\n    C\n}
 0: foo {\x0a    A\x0a}
 0: \x0a\x0afoo {\x0a    A\x0a}

So this looks like a JIT issue.

[zherczeg]

Thank you for the report. Proposed fix: #135

[cmb69]

Thank you for the quick reply! I can confirm that #135 solves this issue for me, and apparently causes no unwanted side effects.

[PhilipHazel]

#135 is now merged.