From 3a44b17bd92a286260017aeb6d30a4cca2011f0d Mon Sep 17 00:00:00 2001
From: Richard Feldman <oss@rtfeldman.com>
Date: Thu, 19 Sep 2019 00:14:59 -0400
Subject: [PATCH] Add sep_by0 and sep_by1

---
 src/parse/parser.rs | 20 ++++++++++++++++++++
 1 file changed, 20 insertions(+)

diff --git a/src/parse/parser.rs b/src/parse/parser.rs
index 681e8669e1..4dae81a3b5 100644
--- a/src/parse/parser.rs
+++ b/src/parse/parser.rs
@@ -410,6 +410,26 @@ pub fn string<'a>(string: &'static str) -> impl Parser<'a, ()> {
     }
 }
 
+/// Parse zero or more values separated by a delimiter (e.g. a comma) whose
+/// values are discarded
+pub fn sep_by0<'a, P, D, Val>(delimiter: D, parser: P) -> impl Parser<'a, Vec<'a, Val>>
+where
+    D: Parser<'a, ()>,
+    P: Parser<'a, Val>,
+{
+    zero_or_more(skip_first(delimiter, parser))
+}
+
+/// Parse one or more values separated by a delimiter (e.g. a comma) whose
+/// values are discarded
+pub fn sep_by1<'a, P, D, Val>(delimiter: D, parser: P) -> impl Parser<'a, Vec<'a, Val>>
+where
+    D: Parser<'a, ()>,
+    P: Parser<'a, Val>,
+{
+    one_or_more(skip_first(delimiter, parser))
+}
+
 pub fn satisfies<'a, P, A, F>(parser: P, predicate: F) -> impl Parser<'a, A>
 where
     P: Parser<'a, A>,