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Man Pages
PCRE2_SET_COMPILE_EXTRA_OPTIONS(3) FreeBSD Library Functions Manual PCRE2_SET_COMPILE_EXTRA_OPTIONS(3)

PCRE2 - Perl-compatible regular expressions (revised API)

#include <pcre2.h>

int pcre2_set_compile_extra_options(pcre2_compile_context *ccontext,
  uint32_t extra_options);

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{df800} to \x{dfff} in UTF-8 and UTF-32 modes PCRE2_EXTRA_ALT_BSUX Extended alternate \u, \U, and \x handling PCRE2_EXTRA_BAD_ESCAPE_IS_LITERAL Treat all invalid escapes as a literal following character 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"

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.

31 August 2021 PCRE2 10.38

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