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.TH PCRE2_SET_SUBSTITUTE_CALLOUT 3 "12 November 2018" "PCRE2 10.33"
.SH NAME
PCRE2 - Perl-compatible regular expressions (revised API)
.SH SYNOPSIS
.rs
.sp
.B #include <pcre2.h>
.PP
.nf
.B int pcre2_set_substitute_callout(pcre2_match_context *\fImcontext\fP,
.B "  int (*\fIcallout_function\fP)(pcre2_substitute_callout_block *),"
.B "  void *\fIcallout_data\fP);"
.fi
.
.SH DESCRIPTION
.rs
.sp
This function sets the substitute callout fields in a match context (the first
argument). The second argument specifies a callout function, and the third
argument is an opaque data item that is passed to it. The result of this
function is always zero.
.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.