fix: detect crlf as end of line in regex prompt

helix-core/src/selection.rs

@@ -1170,6 +1170,68 @@ mod test {
         );
     }
 
+    #[test]
+    fn test_select_on_matches_crlf() {
+        let r = Rope::from_str("This\r\nString\r\n\r\ncontains multiple\r\nlines");
+        let s = r.slice(..);
+
+        let start_of_line = rope::RegexBuilder::new()
+            .syntax(rope::Config::new().multi_line(true).crlf(true))
+            .build(r"^")
+            .unwrap();
+        let end_of_line = rope::RegexBuilder::new()
+            .syntax(rope::Config::new().multi_line(true).crlf(true))
+            .build(r"$")
+            .unwrap();
+
+        // line without ending
+        assert_eq!(
+            select_on_matches(s, &Selection::single(0, 4), &start_of_line),
+            Some(Selection::single(0, 0))
+        );
+        assert_eq!(
+            select_on_matches(s, &Selection::single(0, 4), &end_of_line),
+            None
+        );
+        // line with ending
+        assert_eq!(
+            select_on_matches(s, &Selection::single(0, 5), &start_of_line),
+            Some(Selection::single(0, 0))
+        );
+        assert_eq!(
+            select_on_matches(s, &Selection::single(0, 5), &end_of_line),
+            Some(Selection::single(4, 4))
+        );
+        // line with start of next line
+        assert_eq!(
+            select_on_matches(s, &Selection::single(0, 7), &start_of_line),
+            Some(Selection::new(
+                smallvec![Range::point(0), Range::point(6)],
+                0
+            ))
+        );
+        assert_eq!(
+            select_on_matches(s, &Selection::single(0, 6), &end_of_line),
+            Some(Selection::single(4, 4))
+        );
+
+        // multiple lines
+        assert_eq!(
+            select_on_matches(
+                s,
+                &Selection::single(0, s.len_chars()),
+                &rope::RegexBuilder::new()
+                    .syntax(rope::Config::new().multi_line(true).crlf(true))
+                    .build(r"^[a-z ]*$")
+                    .unwrap()
+            ),
+            Some(Selection::new(
+                smallvec![Range::point(14), Range::new(16, 33), Range::new(35, 40)],
+                0
+            ))
+        );
+    }
+
     #[test]
     fn test_line_range() {
         let r = Rope::from_str("\r\nHi\r\nthere!");

helix-term/src/ui/mod.rs

@@ -127,7 +127,8 @@ pub fn raw_regex_prompt(
                         .syntax(
                             rope::Config::new()
                                 .case_insensitive(case_insensitive)
-                                .multi_line(true),
+                                .multi_line(true)
+                                .crlf(true),
                         )
                         .build(input)
                     {