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<title>pcre_fullinfo specification</title>
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<h1>pcre_fullinfo man page</h1>
<p>
Return to the <a href="index.html">PCRE index page</a>.
</p>
<p>
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.
<br>
<br><b>
SYNOPSIS
</b><br>
<P>
<b>#include &#60;pcre.h&#62;</b>
</P>
<P>
<b>int pcre_fullinfo(const pcre *<i>code</i>, const pcre_extra *<i>extra</i>,</b>
<b>int <i>what</i>, void *<i>where</i>);</b>
</P>
<br><b>
DESCRIPTION
</b><br>
<P>
This function returns information about a compiled pattern. Its arguments are:
<pre>
  <i>code</i>                      Compiled regular expression
  <i>extra</i>                     Result of <b>pcre_study()</b> or NULL
  <i>what</i>                      What information is required
  <i>where</i>                     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 byte for a match, or
                              -1 for start of string
                                 or after newline, or
                              -2 otherwise
  PCRE_INFO_FIRSTTABLE      Table of first bytes (after studying)
  PCRE_INFO_JCHANGED        Return 1 if (?J) or (?-J) was used
  PCRE_INFO_LASTLITERAL     Literal last byte required
  PCRE_INFO_MINLENGTH       Lower bound length of matching strings
  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
</pre>
The yield of the function is zero on success or:
<pre>
  PCRE_ERROR_NULL           the argument <i>code</i> was NULL
                            the argument <i>where</i> was NULL
  PCRE_ERROR_BADMAGIC       the "magic number" was not found
  PCRE_ERROR_BADOPTION      the value of <i>what</i> was invalid
</PRE>
</P>
<P>
There is a complete description of the PCRE native API in the
<a href="pcreapi.html"><b>pcreapi</b></a>
page and a description of the POSIX API in the
<a href="pcreposix.html"><b>pcreposix</b></a>
page.
<p>
Return to the <a href="index.html">PCRE index page</a>.
</p>

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