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-rw-r--r--helix-core/src/selection.rs13
1 files changed, 9 insertions, 4 deletions
diff --git a/helix-core/src/selection.rs b/helix-core/src/selection.rs
index 9016462c..14c54295 100644
--- a/helix-core/src/selection.rs
+++ b/helix-core/src/selection.rs
@@ -455,13 +455,18 @@ impl Selection {
for range in self.ranges.iter_mut() {
*range = f(*range)
}
-
self.normalize()
}
- /// A convenience short-cut for `transform(|r| r.min_width_1(text))`.
- pub fn min_width_1(self, text: RopeSlice) -> Self {
- self.transform(|r| r.min_width_1(text))
+ // Ensures the selection adheres to the following invariants:
+ // 1. All ranges are grapheme aligned.
+ // 2. All ranges are at least 1 character wide, unless at the
+ // very end of the document.
+ // 3. Ranges are non-overlapping.
+ // 4. Ranges are sorted by their position in the text.
+ pub fn ensure_invariants(self, text: RopeSlice) -> Self {
+ self.transform(|r| r.min_width_1(text).grapheme_aligned(text))
+ .normalize()
}
/// Transforms the selection into all of the left-side head positions,