diff -r 000000000000 -r 7f656887cf89 libraries/spcre/libpcre/pcre/doc/pcre_study.3
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/libraries/spcre/libpcre/pcre/doc/pcre_study.3	Wed Jun 23 15:52:26 2010 +0100
@@ -0,0 +1,42 @@
+.TH PCRE_STUDY 3
+.SH NAME
+PCRE - Perl-compatible regular expressions
+.SH SYNOPSIS
+.rs
+.sp
+.B #include <pcre.h>
+.PP
+.SM
+.B pcre_extra *pcre_study(const pcre *\fIcode\fP, int \fIoptions\fP,
+.ti +5n
+.B const char **\fIerrptr\fP);
+.
+.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:
+.sp
+  \fIcode\fP       A compiled regular expression
+  \fIoptions\fP    Options for \fBpcre_study()\fP
+  \fIerrptr\fP     Where to put an error message
+.sp
+If the function succeeds, it returns a value that can be passed to
+\fBpcre_exec()\fP via its \fIextra\fP argument.
+.P
+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.
+.P
+There are currently no options defined; the value of the second argument should
+always be zero.
+.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.