From 81d751f0cfa547dcefcb8660cfb2163079457462 Mon Sep 17 00:00:00 2001
From: Nikhil Benesch <nikhil.benesch@gmail.com>
Date: Sat, 6 Jun 2020 14:08:59 -0400
Subject: [PATCH] api: implement Clone for SubCaptureMatches

This is useful in a generic context when you want to iterate over
something twice. There's not much reason to not do it at least.

Closes #689
---
 src/re_bytes.rs   | 1 +
 src/re_trait.rs   | 1 +
 src/re_unicode.rs | 1 +
 3 files changed, 3 insertions(+)

diff --git a/src/re_bytes.rs b/src/re_bytes.rs
index b5a7219d79..189bed5fd5 100644
--- a/src/re_bytes.rs
+++ b/src/re_bytes.rs
@@ -1056,6 +1056,7 @@ impl<'t, 'i> Index<&'i str> for Captures<'t> {
 ///
 /// The lifetime `'c` corresponds to the lifetime of the `Captures` value, and
 /// the lifetime `'t` corresponds to the originally matched text.
+#[derive(Clone)]
 pub struct SubCaptureMatches<'c, 't: 'c> {
     caps: &'c Captures<'t>,
     it: SubCapturesPosIter<'c>,
diff --git a/src/re_trait.rs b/src/re_trait.rs
index b56804ef01..d14a9f7613 100644
--- a/src/re_trait.rs
+++ b/src/re_trait.rs
@@ -51,6 +51,7 @@ impl Locations {
 /// Positions are byte indices in terms of the original string matched.
 ///
 /// `'c` is the lifetime of the captures.
+#[derive(Clone)]
 pub struct SubCapturesPosIter<'c> {
     idx: usize,
     locs: &'c Locations,
diff --git a/src/re_unicode.rs b/src/re_unicode.rs
index c23b7719bc..7a0e34951b 100644
--- a/src/re_unicode.rs
+++ b/src/re_unicode.rs
@@ -1058,6 +1058,7 @@ impl<'t, 'i> Index<&'i str> for Captures<'t> {
 ///
 /// The lifetime `'c` corresponds to the lifetime of the `Captures` value, and
 /// the lifetime `'t` corresponds to the originally matched text.
+#[derive(Clone)]
 pub struct SubCaptureMatches<'c, 't: 'c> {
     caps: &'c Captures<'t>,
     it: SubCapturesPosIter<'c>,