add PIRegularExpression

3rd/pcre2/doc/pcre2_code_free.3

@@ -0,0 +1,30 @@
+.TH PCRE2_CODE_FREE 3 "28 June 2018" "PCRE2 10.45"
+.SH NAME
+PCRE2 - Perl-compatible regular expressions (revised API)
+.SH SYNOPSIS
+.rs
+.sp
+.B #include <pcre2.h>
+.PP
+.nf
+.B void pcre2_code_free(pcre2_code *\fIcode\fP);
+.fi
+.
+.SH DESCRIPTION
+.rs
+.sp
+If \fIcode\fP is NULL, this function does nothing. Otherwise, \fIcode\fP must
+point to a compiled pattern. This function frees its memory, including any
+memory used by the JIT compiler. If the compiled pattern was created by a call
+to \fBpcre2_code_copy_with_tables()\fP, the memory for the character tables is
+also freed.
+.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.