43 lines
1.2 KiB
Groff
43 lines
1.2 KiB
Groff
.TH PCRE_GET_SUBSTRING 3
|
|
.SH NAME
|
|
PCRE - Perl-compatible regular expressions
|
|
.SH SYNOPSIS
|
|
.rs
|
|
.sp
|
|
.B #include <pcre.h>
|
|
.PP
|
|
.SM
|
|
.B int pcre_get_substring(const char *\fIsubject\fP, int *\fIovector\fP,
|
|
.ti +5n
|
|
.B int \fIstringcount\fP, int \fIstringnumber\fP,
|
|
.ti +5n
|
|
.B const char **\fIstringptr\fP);
|
|
.
|
|
.SH DESCRIPTION
|
|
.rs
|
|
.sp
|
|
This is a convenience function for extracting a captured substring. The
|
|
arguments are:
|
|
.sp
|
|
\fIsubject\fP Subject that has been successfully matched
|
|
\fIovector\fP Offset vector that \fBpcre_exec()\fP used
|
|
\fIstringcount\fP Value returned by \fBpcre_exec()\fP
|
|
\fIstringnumber\fP Number of the required substring
|
|
\fIstringptr\fP Where to put the string pointer
|
|
.sp
|
|
The memory in which the substring is placed is obtained by calling
|
|
\fBpcre_malloc()\fP. The convenience function \fBpcre_free_substring()\fP can
|
|
be used to free it when it is no longer needed. The yield of the function is
|
|
the length of the substring, PCRE_ERROR_NOMEMORY if sufficient memory could not
|
|
be obtained, 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.
|