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-.TH PCRE 3
-.SH NAME
-PCRE - Perl-compatible regular expressions
-.SH SYNOPSIS
-.rs
-.sp
-.B #include <pcre.h>
-.PP
-.SM
-.br
-.B pcre_extra *pcre_study(const pcre *\fIcode\fR, int \fIoptions\fR,
-.ti +5n
-.B const char **\fIerrptr\fR);
-
-.SH DESCRIPTION
-.rs
-.sp
-This function studies a compiled pattern, to see if additional information can
-be extracted that might speed up matching. Its arguments are:
-
-  \fIcode\fR       A compiled regular expression
-  \fIoptions\fR    Options for \fBpcre_study()\fR
-  \fIerrptr\fR     Where to put an error message
-
-If the function returns NULL, either it could not find any additional
-information, or there was an error. You can tell the difference by looking at
-the error value. It is NULL in first case.
-
-There are currently no options defined; the value of the second argument should
-always be zero.
-
-There is a complete description of the PCRE API in the
-.\" HREF
-\fBpcreapi\fR
-.\"
-page.