Add `remove_selections` command (#1065)

* Add `remove_selections` command

* Document `remove_selections`

* Update helix-term/src/keymap.rs

Co-authored-by: Blaž Hrastnik <blaz@mxxn.io>

1 files changed, 3 insertions, 2 deletions

diff --git a/helix-core/src/selection.rs b/helix-core/src/selection.rs
index f3b5d2c8..f7c7dbcb 100644
--- a/helix-core/src/selection.rs
+++ b/helix-core/src/selection.rs
@@ -528,14 +528,15 @@ impl<'a> IntoIterator for &'a Selection {
 
 // TODO: checkSelection -> check if valid for doc length && sorted
 
-pub fn keep_matches(
+pub fn keep_or_remove_matches(
     text: RopeSlice,
     selection: &Selection,
     regex: &crate::regex::Regex,
+    remove: bool,
 ) -> Option<Selection> {
     let result: SmallVec<_> = selection
         .iter()
-        .filter(|range| regex.is_match(&range.fragment(text)))
+        .filter(|range| regex.is_match(&range.fragment(text)) ^ remove)
         .copied()
         .collect();