Split selection on regex, fix InputEdit generation.

2 files changed, 15 insertions, 0 deletions

diff --git a/helix-view/src/commands.rs b/helix-view/src/commands.rs
index d868a17c..fc18e3a7 100644
--- a/helix-view/src/commands.rs
+++ b/helix-view/src/commands.rs
@@ -1,8 +1,11 @@
 use helix_core::{
     graphemes,
+    regex::Regex,
+    selection,
     state::{Direction, Granularity, Mode, State},
     Range, Selection, Tendril, Transaction,
 };
+use once_cell::sync::Lazy;
 
 use crate::view::View;
 
@@ -144,6 +147,14 @@ pub fn extend_line_down(view: &mut View, count: usize) {
             .extend_selection(Direction::Forward, Granularity::Line, count);
 }
 
+pub fn split_selection_on_newline(view: &mut View, _count: usize) {
+    let text = &view.state.doc.slice(..);
+    // only compile the regex once
+    static REGEX: Lazy<Regex> = Lazy::new(|| Regex::new(r"\n").unwrap());
+    // TODO: use a transaction
+    view.state.selection = selection::split_on_matches(text, view.state.selection(), &REGEX)
+}
+
 pub fn delete_selection(view: &mut View, _count: usize) {
     let transaction =
         Transaction::change_by_selection(&view.state, |range| (range.from(), range.to(), None));
diff --git a/helix-view/src/keymap.rs b/helix-view/src/keymap.rs
index 750f1a5f..078f2bf1 100644
--- a/helix-view/src/keymap.rs
+++ b/helix-view/src/keymap.rs
@@ -175,6 +175,10 @@ pub fn default() -> Keymaps {
                     modifiers: Modifiers::NONE
                 }] => commands::change_selection as Command,
                 vec![Key {
+                    code: KeyCode::Char('s'),
+                    modifiers: Modifiers::NONE
+                }] => commands::split_selection_on_newline as Command,
+                vec![Key {
                     code: KeyCode::Esc,
                     modifiers: Modifiers::NONE
                 }] => commands::normal_mode as Command,