From 2f8c17e0c852b4820547b591de5b182abc21773e Mon Sep 17 00:00:00 2001
From: "Petter A. Urkedal" <paurkedal@gmail.com>
Date: Sun, 4 Jun 2017 12:51:35 +0200
Subject: [PATCH] Add ppx_regexp.descr.

---
 ppx_regexp.descr | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)
 create mode 100644 ppx_regexp.descr

diff --git a/ppx_regexp.descr b/ppx_regexp.descr
new file mode 100644
index 0000000..0ffaf12
--- /dev/null
+++ b/ppx_regexp.descr
@@ -0,0 +1,16 @@
+Matching Regular Expressions with OCaml Patterns
+
+This syntax extension turns
+
+    match%pcre x with
+    | {|re1|} -> e1
+    ...
+    | {|reN|} -> eN
+    | _ -> e0
+
+into suitable invocations to the ocaml-re library.  The patterns are plain
+strings of the form accepted by `Re_pcre`, except groups can be bound to
+variables using the syntax `(?<var>...)`.  The type of `var` will be
+`string` if a match is of the groups is guaranteed given a match of the
+whole pattern, and `string option` if the variable is bound to or nested
+below an optionally matched group.