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<h1>pcre_fullinfo man page</h1>

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SYNOPSIS
 

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


int pcre_fullinfo(const pcre *code, const pcre_extra *extra,
 int what, void *where);
 
 
int pcre16_fullinfo(const pcre16 *code, const pcre16_extra *extra,
 int what, void *where);
 
 
int pcre32_fullinfo(const pcre32 *code, const pcre32_extra *extra,
 int what, void *where);

 
DESCRIPTION
 

This function returns information about a compiled pattern. Its arguments are:
<pre>
 code Compiled regular expression
 extra Result of pcre[16|32]_study() or NULL
 what What information is required
 where Where to put the information
</pre>
The following information is available:
<pre>
 PCRE_INFO_BACKREFMAX Number of highest back reference
 PCRE_INFO_CAPTURECOUNT Number of capturing subpatterns
 PCRE_INFO_DEFAULT_TABLES Pointer to default tables
 PCRE_INFO_FIRSTBYTE Fixed first data unit for a match, or
 -1 for start of string
 or after newline, or
 -2 otherwise
 PCRE_INFO_FIRSTTABLE Table of first data units (after studying)
 PCRE_INFO_HASCRORLF Return 1 if explicit CR or LF matches exist
 PCRE_INFO_JCHANGED Return 1 if (?J) or (?-J) was used
 PCRE_INFO_JIT Return 1 after successful JIT compilation
 PCRE_INFO_JITSIZE Size of JIT compiled code
 PCRE_INFO_LASTLITERAL Literal last data unit required
 PCRE_INFO_MINLENGTH Lower bound length of matching strings
 PCRE_INFO_MATCHEMPTY Return 1 if the pattern can match an empty string,
 0 otherwise
 PCRE_INFO_MATCHLIMIT Match limit if set, otherwise PCRE_RROR_UNSET
 PCRE_INFO_MAXLOOKBEHIND Length (in characters) of the longest lookbehind assertion
 PCRE_INFO_NAMECOUNT Number of named subpatterns
 PCRE_INFO_NAMEENTRYSIZE Size of name table entry
 PCRE_INFO_NAMETABLE Pointer to name table
 PCRE_INFO_OKPARTIAL Return 1 if partial matching can be tried
 (always returns 1 after release 8.00)
 PCRE_INFO_OPTIONS Option bits used for compilation
 PCRE_INFO_SIZE Size of compiled pattern
 PCRE_INFO_STUDYSIZE Size of study data
 PCRE_INFO_FIRSTCHARACTER Fixed first data unit for a match
 PCRE_INFO_FIRSTCHARACTERFLAGS Returns
 1 if there is a first data character set, which can
 then be retrieved using PCRE_INFO_FIRSTCHARACTER,
 2 if the first character is at the start of the data
 string or after a newline, and
 0 otherwise
 PCRE_INFO_RECURSIONLIMIT Recursion limit if set, otherwise PCRE_ERROR_UNSET
 PCRE_INFO_REQUIREDCHAR Literal last data unit required
 PCRE_INFO_REQUIREDCHARFLAGS Returns 1 if the last data character is set (which can then
 be retrieved using PCRE_INFO_REQUIREDCHAR); 0 otherwise
</pre>
The where argument must point to an integer variable, except for the
following what values:
<pre>
 PCRE_INFO_DEFAULT_TABLES const uint8_t *
 PCRE_INFO_FIRSTCHARACTER uint32_t
 PCRE_INFO_FIRSTTABLE const uint8_t *
 PCRE_INFO_JITSIZE size_t
 PCRE_INFO_MATCHLIMIT uint32_t
 PCRE_INFO_NAMETABLE PCRE_SPTR16 (16-bit library)
 PCRE_INFO_NAMETABLE PCRE_SPTR32 (32-bit library)
 PCRE_INFO_NAMETABLE const unsigned char * (8-bit library)
 PCRE_INFO_OPTIONS unsigned long int
 PCRE_INFO_SIZE size_t
 PCRE_INFO_STUDYSIZE size_t
 PCRE_INFO_RECURSIONLIMIT uint32_t
 PCRE_INFO_REQUIREDCHAR uint32_t
</pre>
The yield of the function is zero on success or:
<pre>
 PCRE_ERROR_NULL the argument code was NULL
 the argument where was NULL
 PCRE_ERROR_BADMAGIC the "magic number" was not found
 PCRE_ERROR_BADOPTION the value of what was invalid
 PCRE_ERROR_UNSET the option was not set
</PRE>


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.

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