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.TH PCRE_COPY_SUBSTRING 3 "24 June 2012" "PCRE 8.30"
.SH NAME
PCRE - Perl-compatible regular expressions
.SH SYNOPSIS
.rs
.sp
.B #include <pcre.h>
.PP
.nf
.B int pcre_copy_substring(const char *\fIsubject\fP, int *\fIovector\fP,
.B "     int \fIstringcount\fP, int \fIstringnumber\fP, char *\fIbuffer\fP,"
.B "     int \fIbuffersize\fP);"
.sp
.B int pcre16_copy_substring(PCRE_SPTR16 \fIsubject\fP, int *\fIovector\fP,
.B "     int \fIstringcount\fP, int \fIstringnumber\fP, PCRE_UCHAR16 *\fIbuffer\fP,"
.B "     int \fIbuffersize\fP);"
.sp
.B int pcre32_copy_substring(PCRE_SPTR32 \fIsubject\fP, int *\fIovector\fP,
.B "     int \fIstringcount\fP, int \fIstringnumber\fP, PCRE_UCHAR32 *\fIbuffer\fP,"
.B "     int \fIbuffersize\fP);"
.fi
.
.SH DESCRIPTION
.rs
.sp
This is a convenience function for extracting a captured substring into a given
buffer. The arguments are:
.sp
  \fIsubject\fP       Subject that has been successfully matched
  \fIovector\fP       Offset vector that \fBpcre[16|32]_exec()\fP used
  \fIstringcount\fP   Value returned by \fBpcre[16|32]_exec()\fP
  \fIstringnumber\fP  Number of the required substring
  \fIbuffer\fP        Buffer to receive the string
  \fIbuffersize\fP    Size of buffer
.sp
The yield is the length of the string, PCRE_ERROR_NOMEMORY if the buffer was
too small, or PCRE_ERROR_NOSUBSTRING if the string number is invalid.
.P
There is a complete description of the PCRE native API in the
.\" HREF
\fBpcreapi\fP
.\"
page and a description of the POSIX API in the
.\" HREF
\fBpcreposix\fP
.\"
page.

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