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-rw-r--r--helix-term/src/commands.rs167
1 files changed, 117 insertions, 50 deletions
diff --git a/helix-term/src/commands.rs b/helix-term/src/commands.rs
index 27bfbe9a..338468c2 100644
--- a/helix-term/src/commands.rs
+++ b/helix-term/src/commands.rs
@@ -809,7 +809,115 @@ pub fn append_mode(cx: &mut Context) {
doc.set_selection(view.id, selection);
}
-const COMMAND_LIST: &[&str] = &["write", "open", "quit", "quit!"];
+mod cmd {
+ use super::*;
+ use std::collections::HashMap;
+
+ use helix_view::editor::Action;
+
+ #[derive(Clone)]
+ pub struct Command {
+ pub name: &'static str,
+ pub alias: Option<&'static str>,
+ pub doc: &'static str,
+ // params, flags, helper, completer
+ pub fun: fn(&mut Editor, &[&str], PromptEvent),
+ }
+
+ fn quit(editor: &mut Editor, args: &[&str], event: PromptEvent) {
+ // last view and we have unsaved changes
+ if editor.tree.views().count() == 1 {
+ let modified: Vec<_> = editor
+ .documents()
+ .filter(|doc| doc.is_modified())
+ .map(|doc| {
+ doc.relative_path()
+ .and_then(|path| path.to_str())
+ .unwrap_or("[scratch]")
+ })
+ .collect();
+
+ if !modified.is_empty() {
+ let err = format!(
+ "{} unsaved buffer(s) remaining: {:?}",
+ modified.len(),
+ modified
+ );
+ editor.set_error(err);
+ return;
+ }
+ }
+ editor.close(editor.view().id, /* close_buffer */ false);
+ }
+
+ fn force_quit(editor: &mut Editor, args: &[&str], event: PromptEvent) {
+ editor.close(editor.view().id, /* close_buffer */ false);
+ }
+
+ fn open(editor: &mut Editor, args: &[&str], event: PromptEvent) {
+ let path = args[0];
+ editor.open(path.into(), Action::Replace);
+ }
+
+ fn write(editor: &mut Editor, args: &[&str], event: PromptEvent) {
+ let id = editor.view().doc;
+ let doc = &mut editor.documents[id];
+ if doc.path().is_none() {
+ editor.set_error("cannot write a buffer without a filename".to_string());
+ return;
+ }
+ tokio::spawn(doc.save());
+ }
+ fn new_file(editor: &mut Editor, args: &[&str], event: PromptEvent) {
+ editor.new_file(Action::Replace);
+ }
+
+ pub const COMMAND_LIST: &[Command] = &[
+ Command {
+ name: "quit",
+ alias: Some("q"),
+ doc: "Close the current view.",
+ fun: quit,
+ },
+ Command {
+ name: "quit!",
+ alias: Some("q!"),
+ doc: "Close the current view.",
+ fun: force_quit,
+ },
+ Command {
+ name: "open",
+ alias: Some("o"),
+ doc: "Open a file from disk into the current view.",
+ fun: open,
+ },
+ Command {
+ name: "write",
+ alias: Some("w"),
+ doc: "Write changes to disk.",
+ fun: write,
+ },
+ Command {
+ name: "new",
+ alias: Some("n"),
+ doc: "Create a new scratch buffer.",
+ fun: new_file,
+ },
+ ];
+
+ pub static COMMANDS: Lazy<HashMap<&'static str, Command>> = Lazy::new(|| {
+ let mut map = HashMap::new();
+
+ for cmd in COMMAND_LIST {
+ map.insert(cmd.name, cmd.clone());
+ if let Some(alias) = cmd.alias {
+ map.insert(alias, cmd.clone());
+ }
+ }
+
+ map
+ });
+}
pub fn command_mode(cx: &mut Context) {
let prompt = Prompt::new(
@@ -823,10 +931,10 @@ pub fn command_mode(cx: &mut Context) {
if parts.len() <= 1 {
use std::{borrow::Cow, ops::Range};
let end = 0..;
- COMMAND_LIST
+ cmd::COMMAND_LIST
.iter()
- .filter(|command| command.contains(input))
- .map(|command| (end.clone(), Cow::Borrowed(*command)))
+ .filter(|command| command.name.contains(input))
+ .map(|command| (end.clone(), Cow::Borrowed(command.name)))
.collect()
} else {
let part = parts.last().unwrap();
@@ -854,52 +962,11 @@ pub fn command_mode(cx: &mut Context) {
let parts = input.split_ascii_whitespace().collect::<Vec<&str>>();
- match *parts.as_slice() {
- ["q"] | ["quit"] => {
- // last view and we have unsaved changes
- if editor.tree.views().count() == 1 {
- let modified: Vec<_> = editor
- .documents()
- .filter(|doc| doc.is_modified())
- .map(|doc| {
- doc.relative_path()
- .and_then(|path| path.to_str())
- .unwrap_or("[scratch]")
- })
- .collect();
-
- if !modified.is_empty() {
- let err = format!(
- "{} unsaved buffer(s) remaining: {:?}",
- modified.len(),
- modified
- );
- editor.set_error(err);
- return;
- }
- }
- editor.close(editor.view().id, /* close_buffer */ false);
- }
- ["q!"] | ["quit!"] => {
- editor.close(editor.view().id, /* close_buffer */ false);
- }
- ["o", path] | ["open", path] => {
- editor.open(path.into(), Action::Replace);
- }
- ["w"] | ["write"] => {
- let id = editor.view().doc;
- let doc = &mut editor.documents[id];
- if doc.path().is_none() {
- editor.set_error("cannot write a buffer without a filename".to_string());
- return;
- }
- tokio::spawn(doc.save());
- }
- ["new"] => {
- editor.new_file(Action::Replace);
- }
- _ => (),
- }
+ if let Some(cmd) = cmd::COMMANDS.get(parts[0]) {
+ (cmd.fun)(editor, &parts[1..], event);
+ } else {
+ editor.set_error(format!("no such command: '{}'", parts[0]));
+ };
},
);
cx.push_layer(Box::new(prompt));