--- /dev/null
+.TH PCRE2_CONFIG 3 "16 September 2017" "PCRE2 10.31"
+.SH NAME
+PCRE2 - Perl-compatible regular expressions (revised API)
+.SH SYNOPSIS
+.rs
+.sp
+.B #include <pcre2.h>
+.PP
+.SM
+.B int pcre2_config(uint32_t \fIwhat\fP, void *\fIwhere\fP);
+.
+.SH DESCRIPTION
+.rs
+.sp
+This function makes it possible for a client program to find out which optional
+features are available in the version of the PCRE2 library it is using. The
+arguments are as follows:
+.sp
+ \fIwhat\fP A code specifying what information is required
+ \fIwhere\fP Points to where to put the information
+.sp
+If \fIwhere\fP is NULL, the function returns the amount of memory needed for
+the requested information. When the information is a string, the value is in
+code units; for other types of data it is in bytes.
+.P
+If \fBwhere\fP is not NULL, for PCRE2_CONFIG_JITTARGET,
+PCRE2_CONFIG_UNICODE_VERSION, and PCRE2_CONFIG_VERSION it must point to a
+buffer that is large enough to hold the string. For all other codes it must
+point to a uint32_t integer variable. The available codes are:
+.sp
+ PCRE2_CONFIG_BSR Indicates what \eR matches by default:
+ PCRE2_BSR_UNICODE
+ PCRE2_BSR_ANYCRLF
+ PCRE2_CONFIG_COMPILED_WIDTHS Which of 8/16/32 support was compiled
+ PCRE2_CONFIG_DEPTHLIMIT Default backtracking depth limit
+ PCRE2_CONFIG_HEAPLIMIT Default heap memory limit
+.\" JOIN
+ PCRE2_CONFIG_JIT Availability of just-in-time compiler
+ support (1=yes 0=no)
+.\" JOIN
+ PCRE2_CONFIG_JITTARGET Information (a string) about the target
+ architecture for the JIT compiler
+ PCRE2_CONFIG_LINKSIZE Configured internal link size (2, 3, 4)
+ PCRE2_CONFIG_MATCHLIMIT Default internal resource limit
+ PCRE2_CONFIG_NEVER_BACKSLASH_C Whether or not \eC is disabled
+ PCRE2_CONFIG_NEWLINE Code for the default newline sequence:
+ PCRE2_NEWLINE_CR
+ PCRE2_NEWLINE_LF
+ PCRE2_NEWLINE_CRLF
+ PCRE2_NEWLINE_ANY
+ PCRE2_NEWLINE_ANYCRLF
+ PCRE2_NEWLINE_NUL
+ PCRE2_CONFIG_PARENSLIMIT Default parentheses nesting limit
+ PCRE2_CONFIG_RECURSIONLIMIT Obsolete: use PCRE2_CONFIG_DEPTHLIMIT
+ PCRE2_CONFIG_STACKRECURSE Obsolete: always returns 0
+.\" JOIN
+ PCRE2_CONFIG_UNICODE Availability of Unicode support (1=yes
+ 0=no)
+ PCRE2_CONFIG_UNICODE_VERSION The Unicode version (a string)
+ PCRE2_CONFIG_VERSION The PCRE2 version (a string)
+.sp
+The function yields a non-negative value on success or the negative value
+PCRE2_ERROR_BADOPTION otherwise. This is also the result for the
+PCRE2_CONFIG_JITTARGET code if JIT support is not available. When a string is
+requested, the function returns the number of code units used, including the
+terminating 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.