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Edit File: pcre_compile.html

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<h1>pcre_compile man page</h1>

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This page is part of the PCRE HTML documentation. It was generated automatically
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man page, in case the conversion went wrong.
 
 
SYNOPSIS
 

#include &#60;pcre.h&#62;


pcre *pcre_compile(const char *pattern, int options,
const char **errptr, int *erroffset,
const unsigned char *tableptr);


pcre16 *pcre16_compile(PCRE_SPTR16 pattern, int options,
const char **errptr, int *erroffset,
const unsigned char *tableptr);


pcre32 *pcre32_compile(PCRE_SPTR32 pattern, int options,
const char **errptr, int *erroffset,
const unsigned char *tableptr);

 
DESCRIPTION
 

This function compiles a regular expression into an internal form. It is the
same as pcre[16|32]_compile2(), except for the absence of the
errorcodeptr argument. Its arguments are:
<pre>
 pattern A zero-terminated string containing the
 regular expression to be compiled
 options Zero or more option bits
 errptr Where to put an error message
 erroffset Offset in pattern where error was found
 tableptr Pointer to character tables, or NULL to
 use the built-in default
</pre>
The option bits are:
<pre>
 PCRE_ANCHORED Force pattern anchoring
 PCRE_AUTO_CALLOUT Compile automatic callouts
 PCRE_BSR_ANYCRLF \R matches only CR, LF, or CRLF
 PCRE_BSR_UNICODE \R matches all Unicode line endings
 PCRE_CASELESS Do caseless matching
 PCRE_DOLLAR_ENDONLY $ not to match newline at end
 PCRE_DOTALL . matches anything including NL
 PCRE_DUPNAMES Allow duplicate names for subpatterns
 PCRE_EXTENDED Ignore white space and # comments
 PCRE_EXTRA PCRE extra features
 (not much use currently)
 PCRE_FIRSTLINE Force matching to be before newline
 PCRE_JAVASCRIPT_COMPAT JavaScript compatibility
 PCRE_MULTILINE ^ and $ match newlines within data
 PCRE_NEWLINE_ANY Recognize any Unicode newline sequence
 PCRE_NEWLINE_ANYCRLF Recognize CR, LF, and CRLF as newline
 sequences
 PCRE_NEWLINE_CR Set CR as the newline sequence
 PCRE_NEWLINE_CRLF Set CRLF as the newline sequence
 PCRE_NEWLINE_LF Set LF as the newline sequence
 PCRE_NO_AUTO_CAPTURE Disable numbered capturing paren-
 theses (named ones available)
 PCRE_NO_UTF16_CHECK Do not check the pattern for UTF-16
 validity (only relevant if
 PCRE_UTF16 is set)
 PCRE_NO_UTF32_CHECK Do not check the pattern for UTF-32
 validity (only relevant if
 PCRE_UTF32 is set)
 PCRE_NO_UTF8_CHECK Do not check the pattern for UTF-8
 validity (only relevant if
 PCRE_UTF8 is set)
 PCRE_UCP Use Unicode properties for \d, \w, etc.
 PCRE_UNGREEDY Invert greediness of quantifiers
 PCRE_UTF16 Run in pcre16_compile() UTF-16 mode
 PCRE_UTF32 Run in pcre32_compile() UTF-32 mode
 PCRE_UTF8 Run in pcre_compile() UTF-8 mode
</pre>
PCRE must be built with UTF support in order to use PCRE_UTF8/16/32 and
PCRE_NO_UTF8/16/32_CHECK, and with UCP support if PCRE_UCP is used.


The yield of the function is a pointer to a private data structure that
contains the compiled pattern, or NULL if an error was detected. Note that
compiling regular expressions with one version of PCRE for use with a different
version is not guaranteed to work and may cause crashes.


There is a complete description of the PCRE native API in the
<a href="pcreapi.html">pcreapi</a>
page and a description of the POSIX API in the
<a href="pcreposix.html">pcreposix</a>
page.

Return to the <a href="index.html">PCRE index page</a>.