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SYNOPSIS
#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{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円 (but not 00円 or 000円)
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.
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