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<title>pcre2_set_compile_extra_options specification</title>
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<h1>pcre2_set_compile_extra_options man page</h1>
<p>
Return to the <a href="index.html">PCRE2 index page</a>.
</p>
<p>
This page is part of the PCRE2 HTML documentation. It was generated
automatically from the original man page. If there is any nonsense in it,
please consult the man page, in case the conversion went wrong.
<br>
<br><b>
SYNOPSIS
</b><br>
<P>
<b>#include &#60;pcre2.h&#62;</b>
</P>
<P>
<b>int pcre2_set_compile_extra_options(pcre2_compile_context *<i>ccontext</i>,</b>
<b>  uint32_t <i>extra_options</i>);</b>
</P>
<br><b>
DESCRIPTION
</b><br>
<P>
This function sets additional option bits for <b>pcre2_compile()</b> that are
housed in a compile context. It completely replaces all the bits. The extra
options are:
<pre>
  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"
</pre>
There is a complete description of the PCRE2 native API in the
<a href="pcre2api.html"><b>pcre2api</b></a>
page and a description of the POSIX API in the
<a href="pcre2posix.html"><b>pcre2posix</b></a>
page.
<p>
Return to the <a href="index.html">PCRE2 index page</a>.
</p>