feat: add options to replace file name on rename action

yazi-config/src/popup/options.rs

@@ -9,6 +9,7 @@ pub struct InputCfg {
 	pub realtime:   bool,
 	pub completion: bool,
 	pub highlight:  bool,
+	pub cursor_at:  Option<usize>,
 }
 
 #[derive(Default)]
@@ -130,6 +131,12 @@ impl InputCfg {
 		self.value = value.into();
 		self
 	}
+
+	#[inline]
+	pub fn with_cursor_at(mut self, cursor_at: Option<usize>) -> Self {
+		self.cursor_at = cursor_at;
+		self
+	}
 }
 
 impl SelectCfg {

yazi-core/src/input/commands/show.rs

@@ -41,7 +41,7 @@ impl Input {
 		self.highlight = opt.cfg.highlight;
 
 		// Reset snaps
-		self.snaps.reset(opt.cfg.value, self.limit());
+		self.snaps.reset(opt.cfg.value, self.limit(), opt.cfg.cursor_at);
 		render!();
 	}
 }

yazi-core/src/input/snaps.rs

@@ -11,11 +11,15 @@ pub(super) struct InputSnaps {
 
 impl InputSnaps {
 	#[inline]
-	pub(super) fn reset(&mut self, value: String, limit: usize) {
+	pub(super) fn reset(&mut self, value: String, limit: usize, cursor_at: Option<usize>) {
 		self.idx = 0;
 		self.versions.clear();
 		self.versions.push(InputSnap::new(value, limit));
 		self.current = self.versions[0].clone();
+
+		if let Some(cursor) = cursor_at {
+			self.current.cursor = cursor;
+		}
 	}
 
 	pub(super) fn tag(&mut self, limit: usize) -> bool {

yazi-core/src/manager/commands/rename.rs

@@ -11,10 +11,18 @@ use crate::{input::Input, manager::Manager};
 
 pub struct Opt {
 	force: bool,
+	replace: bool,
+	keep_ext: bool,
 }
 
 impl From<&Exec> for Opt {
-	fn from(e: &Exec) -> Self { Self { force: e.named.contains_key("force") } }
+	fn from(e: &Exec) -> Self {
+		Self {
+			force: e.named.contains_key("force"),
+			replace: e.named.contains_key("replace"),
+			keep_ext: e.named.contains_key("keep-ext"),
+		}
+	}
 }
 
 impl Manager {
@@ -40,8 +48,20 @@ impl Manager {
 
 		let opt = opt.into() as Opt;
 		tokio::spawn(async move {
+			let full_name = hovered.file_name().unwrap().to_string_lossy();
+			let (initial_value, cursor_start) = if opt.keep_ext {
+				let last = full_name.split('.').last();
+				if last == Some(&full_name) {
+					("".into(), None)
+				} else {
+					(format!(".{}", last.unwrap()), Some(0))
+				}
+			} else {
+				(opt.replace.then(|| "").unwrap_or(&full_name).into(), None)
+			};
+
 			let mut result =
-				Input::_show(InputCfg::rename().with_value(hovered.file_name().unwrap().to_string_lossy()));
+				Input::_show(InputCfg::rename().with_value(initial_value).with_cursor_at(cursor_start));
 
 			let Some(Ok(name)) = result.recv().await else {
 				return;