parse non-greedy repetitions

1 files changed, 8 insertions, 12 deletions

diff --git a/src/parse/regex/mod.rs b/src/parse/regex/mod.rs
index 79e234f..6b7bc9e 100644
--- a/src/parse/regex/mod.rs
+++ b/src/parse/regex/mod.rs
@@ -1,4 +1,4 @@
-use crate::parse::{NotImplementedKind, OtherHighlights};
+use crate::parse::OtherHighlights;
 
 use super::{Parse, ParseError, Result};
 
@@ -234,18 +234,14 @@ fn parse_rep(s: &mut super::Cursor<'_>) -> Result<Pattern> {
         s.adv();
         s.highlight_from(begin, OtherHighlights::RegexSymbol);
 
-        if s.has() && s.peek() == b'?' {
-            return Err(ParseError::NotYetImplemented(
-                NotImplementedKind::NonGreedyRegexRepetition,
-            ));
-        }
+        let greed = if s.has() && s.peek() == b'?' {
+            s.adv();
+            GreedyBehavior::NonGreedy
+        } else {
+            GreedyBehavior::Greedy
+        };
 
-        Ok(Pattern::Rep(
-            Box::new(atom),
-            min_rep,
-            max_rep,
-            GreedyBehavior::Greedy,
-        ))
+        Ok(Pattern::Rep(Box::new(atom), min_rep, max_rep, greed))
     } else {
         Ok(atom)
     }