pcre2_set_compile_extra_options(3) — Linux manual page

NAME \| SYNOPSIS \| DESCRIPTION \| COLOPHON

PCRE2_SE...A_OPTIONS(3)  Library Functions Manual PCRE2_SE...A_OPTIONS(3)

NAME top

       PCRE2 - Perl-compatible regular expressions (revised API)

SYNOPSIS top


       #include <pcre2.h>

       int pcre2_set_compile_extra_options(pcre2_compile_context *ccontext,
         uint32_t extra_options);

DESCRIPTION top


       This function sets additional option bits for pcre2_compile() that
       are housed in a compile context. It completely replaces all the
       bits. The extra options are:

         PCRE2_EXTRA_ALLOW_LOOKAROUND_BSK     Allow \K in lookarounds
         PCRE2_EXTRA_ALLOW_SURROGATE_ESCAPES  Allow \x{d800} to \x{dfff}
                                                in UTF-8 and UTF-32 modes
         PCRE2_EXTRA_ALT_BSUX                 Extended alternate \u, \U,
       and
                                                \x handling
         PCRE2_EXTRA_ASCII_BSD                \d remains ASCII in UCP
       mode
         PCRE2_EXTRA_ASCII_BSS                \s remains ASCII in UCP
       mode
         PCRE2_EXTRA_ASCII_BSW                \w remains ASCII in UCP
       mode
         PCRE2_EXTRA_ASCII_DIGIT              [:digit:] and [:xdigit:]
       POSIX classes
                                                remain ASCII in UCP mode
         PCRE2_EXTRA_ASCII_POSIX              POSIX classes remain ASCII
       in
                                                UCP mode
         PCRE2_EXTRA_BAD_ESCAPE_IS_LITERAL    Treat all invalid escapes
       as
                                                a literal following
       character
         PCRE2_EXTRA_CASELESS_RESTRICT        Disable mixed ASCII/non-
       ASCII
                                                case folding
         PCRE2_EXTRA_ESCAPED_CR_IS_LF         Interpret \r as \n
         PCRE2_EXTRA_MATCH_LINE               Pattern matches whole lines
         PCRE2_EXTRA_MATCH_WORD               Pattern matches "words"
         PCRE2_EXTRA_NEVER_CALLOUT            Disallow callouts in
       pattern
         PCRE2_EXTRA_NO_BS0                   Disallow \0 (but not \00 or
       \000)
         PCRE2_EXTRA_PYTHON_OCTAL             Use Python rules for octal
         PCRE2_EXTRA_TURKISH_CASING           Use Turkish I case folding

       There is a complete description of the PCRE2 native API in the
       pcre2api page and a description of the POSIX API in the pcre2posix
       page.

COLOPHON top

       This page is part of the PCRE (Perl Compatible Regular
       Expressions) project.  Information about the project can be found
       at ⟨http://www.pcre.org/⟩.  If you have a bug report for this
       manual page, see
       ⟨http://bugs.exim.org/enter_bug.cgi?product=PCRE⟩.  This page was
       obtained from the tarball fetched from
       ⟨https://github.com/PhilipHazel/pcre2.git⟩ on 2025-08-11.  If you
       discover any rendering problems in this HTML version of the page,
       or you believe there is a better or more up-to-date source for the
       page, or you have corrections or improvements to the information
       in this COLOPHON (which is not part of the original manual page),
       send a mail to [email protected]

PCRE2 10.46-DEV              14 October 2024      PCRE2_SE...A_OPTIONS(3)