文件操作 - pcre2_substring_length_bynumber.html

文件: /usr/share/doc/pcre2-devel/html/pcre2_substring_length_bynumber.html

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<html>
<head>
<title>pcre2_substring_length_bynumber specification</title>
</head>
<body bgcolor="#FFFFFF" text="#00005A" link="#0066FF" alink="#3399FF" vlink="#2222BB">
<h1>pcre2_substring_length_bynumber man page</h1>

Return to the <a href="index.html">PCRE2 index page</a>.


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.
 
 
SYNOPSIS
 

#include &#60;pcre2.h&#62;


int pcre2_substring_length_bynumber(pcre2_match_data *match_data,
 uint32_t number, PCRE2_SIZE *length);

 
DESCRIPTION
 

This function returns the length of a matched substring, identified by number.
The arguments are:
<pre>
 match_data The match data block for the match
 number The substring number
 length Where to return the length, or NULL
</pre>
The third argument may be NULL if all you want to know is whether or not a
substring is set. The yield is zero on success, or a negative error code
otherwise. After a partial match, only substring 0 is available.


There is a complete description of the PCRE2 native API in the
<a href="pcre2api.html">pcre2api</a>
page and a description of the POSIX API in the
<a href="pcre2posix.html">pcre2posix</a>
page.

Return to the <a href="index.html">PCRE2 index page</a>.

文件操作 - pcre2_substring_length_bynumber.html

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