40 lines
1.1 KiB
Groff
40 lines
1.1 KiB
Groff
.TH PCRE2_SUBSTRING_COPY_BYNUMBER 3 "01 December 2014" "PCRE2 10.00"
|
|
.SH NAME
|
|
PCRE2 - Perl-compatible regular expressions (revised API)
|
|
.SH SYNOPSIS
|
|
.rs
|
|
.sp
|
|
.B #include <pcre2.h>
|
|
.PP
|
|
.nf
|
|
.B int pcre2_substring_copy_bynumber(pcre2_match_data *\fImatch_data\fP,
|
|
.B " uint32_t \fInumber\fP, PCRE2_UCHAR *\fIbuffer\fP,"
|
|
.B " PCRE2_SIZE *\fIbufflen\fP);"
|
|
.fi
|
|
.
|
|
.SH DESCRIPTION
|
|
.rs
|
|
.sp
|
|
This is a convenience function for extracting a captured substring into a given
|
|
buffer. The arguments are:
|
|
.sp
|
|
\fImatch_data\fP The match data block for the match
|
|
\fInumber\fP Number of the required substring
|
|
\fIbuffer\fP Buffer to receive the string
|
|
\fIbufflen\fP Length of buffer
|
|
.sp
|
|
The \fIbufflen\fP variable is updated with the length of the extracted string,
|
|
excluding the terminating zero. The yield of the function is zero for success,
|
|
PCRE2_ERROR_NOMEMORY if the buffer was too small, or PCRE2_ERROR_NOSUBSTRING if
|
|
the string number is invalid.
|
|
.P
|
|
There is a complete description of the PCRE2 native API in the
|
|
.\" HREF
|
|
\fBpcre2api\fP
|
|
.\"
|
|
page and a description of the POSIX API in the
|
|
.\" HREF
|
|
\fBpcre2posix\fP
|
|
.\"
|
|
page.
|