From ddf61d4c4af9e507eabae620b7a79550f94553e8 Mon Sep 17 00:00:00 2001
From: Andrew Gallant <jamslam@gmail.com>
Date: Mon, 6 Mar 2023 10:35:01 -0500
Subject: [PATCH] api: add Match::{is_empty, len}

Adding these methods has almost no cost and they can be convenient to
have in some cases.

Closes #810
---
 src/re_bytes.rs   | 12 ++++++++++++
 src/re_unicode.rs | 12 ++++++++++++
 2 files changed, 24 insertions(+)

diff --git a/src/re_bytes.rs b/src/re_bytes.rs
index b86973d0b..64c09a725 100644
--- a/src/re_bytes.rs
+++ b/src/re_bytes.rs
@@ -37,6 +37,18 @@ impl<'t> Match<'t> {
         self.end
     }
 
+    /// Returns true if and only if this match has a length of zero.
+    #[inline]
+    pub fn is_empty(&self) -> bool {
+        self.start == self.end
+    }
+
+    /// Returns the length, in bytes, of this match.
+    #[inline]
+    pub fn len(&self) -> usize {
+        self.end - self.start
+    }
+
     /// Returns the range over the starting and ending byte offsets of the
     /// match in the haystack.
     #[inline]
diff --git a/src/re_unicode.rs b/src/re_unicode.rs
index 41bd8ac09..bee365e8d 100644
--- a/src/re_unicode.rs
+++ b/src/re_unicode.rs
@@ -45,6 +45,18 @@ impl<'t> Match<'t> {
         self.end
     }
 
+    /// Returns true if and only if this match has a length of zero.
+    #[inline]
+    pub fn is_empty(&self) -> bool {
+        self.start == self.end
+    }
+
+    /// Returns the length, in bytes, of this match.
+    #[inline]
+    pub fn len(&self) -> usize {
+        self.end - self.start
+    }
+
     /// Returns the range over the starting and ending byte offsets of the
     /// match in the haystack.
     #[inline]