1650 lines
41 KiB
Rust
1650 lines
41 KiB
Rust
use std::iter::Peekable;
|
|
use std::str::Chars;
|
|
|
|
use nix::NixPath;
|
|
use unicode_segmentation::UnicodeSegmentation;
|
|
|
|
use super::keys::{KeyCode as K, KeyEvent as E, ModKeys as M};
|
|
use super::linebuf::CharClass;
|
|
use super::vicmd::{Anchor, Bound, CmdFlags, Dest, Direction, Motion, MotionCmd, RegisterName, TextObj, To, Verb, VerbCmd, ViCmd, Word};
|
|
use crate::prelude::*;
|
|
|
|
#[derive(Clone, Copy, Debug, PartialEq, Eq)]
|
|
pub enum ModeReport {
|
|
Insert,
|
|
Normal,
|
|
Visual,
|
|
Replace,
|
|
Unknown
|
|
}
|
|
|
|
#[derive(Debug,Clone)]
|
|
pub enum CmdReplay {
|
|
ModeReplay { cmds: Vec<ViCmd>, repeat: u16 },
|
|
Single(ViCmd),
|
|
Motion(Motion)
|
|
}
|
|
|
|
impl CmdReplay {
|
|
pub fn mode(cmds: Vec<ViCmd>, repeat: u16) -> Self {
|
|
Self::ModeReplay { cmds, repeat }
|
|
}
|
|
pub fn single(cmd: ViCmd) -> Self {
|
|
Self::Single(cmd)
|
|
}
|
|
pub fn motion(motion: Motion) -> Self {
|
|
Self::Motion(motion)
|
|
}
|
|
}
|
|
|
|
pub enum CmdState {
|
|
Pending,
|
|
Complete,
|
|
Invalid
|
|
}
|
|
|
|
pub trait ViMode {
|
|
fn handle_key(&mut self, key: E) -> Option<ViCmd>;
|
|
fn is_repeatable(&self) -> bool;
|
|
fn as_replay(&self) -> Option<CmdReplay>;
|
|
fn cursor_style(&self) -> String;
|
|
fn pending_seq(&self) -> Option<String>;
|
|
fn move_cursor_on_undo(&self) -> bool;
|
|
fn clamp_cursor(&self) -> bool;
|
|
fn hist_scroll_start_pos(&self) -> Option<To>;
|
|
fn report_mode(&self) -> ModeReport;
|
|
fn cmds_from_raw(&mut self, raw: &str) -> Vec<ViCmd> {
|
|
let mut cmds = vec![];
|
|
for ch in raw.graphemes(true) {
|
|
let key = E::new(ch, M::NONE);
|
|
let Some(cmd) = self.handle_key(key) else {
|
|
continue
|
|
};
|
|
cmds.push(cmd)
|
|
}
|
|
cmds
|
|
}
|
|
}
|
|
|
|
#[derive(Default,Debug)]
|
|
pub struct ViInsert {
|
|
cmds: Vec<ViCmd>,
|
|
pending_cmd: ViCmd,
|
|
repeat_count: u16
|
|
}
|
|
|
|
impl ViInsert {
|
|
pub fn new() -> Self {
|
|
Self::default()
|
|
}
|
|
pub fn with_count(mut self, repeat_count: u16) -> Self {
|
|
self.repeat_count = repeat_count;
|
|
self
|
|
}
|
|
pub fn register_and_return(&mut self) -> Option<ViCmd> {
|
|
let mut cmd = self.take_cmd();
|
|
cmd.normalize_counts();
|
|
self.register_cmd(&cmd);
|
|
Some(cmd)
|
|
}
|
|
pub fn ctrl_w_is_undo(&self) -> bool {
|
|
let insert_count = self.cmds.iter().filter(|cmd| {
|
|
matches!(cmd.verb(),Some(VerbCmd(1, Verb::InsertChar(_))))
|
|
}).count();
|
|
let backspace_count = self.cmds.iter().filter(|cmd| {
|
|
matches!(cmd.verb(),Some(VerbCmd(1, Verb::Delete)))
|
|
}).count();
|
|
insert_count > backspace_count
|
|
}
|
|
pub fn register_cmd(&mut self, cmd: &ViCmd) {
|
|
self.cmds.push(cmd.clone())
|
|
}
|
|
pub fn take_cmd(&mut self) -> ViCmd {
|
|
std::mem::take(&mut self.pending_cmd)
|
|
}
|
|
}
|
|
|
|
impl ViMode for ViInsert {
|
|
fn handle_key(&mut self, key: E) -> Option<ViCmd> {
|
|
match key {
|
|
E(K::Char(ch), M::NONE) => {
|
|
self.pending_cmd.set_verb(VerbCmd(1,Verb::InsertChar(ch)));
|
|
self.pending_cmd.set_motion(MotionCmd(1,Motion::ForwardChar));
|
|
self.register_and_return()
|
|
}
|
|
E(K::Char('W'), M::CTRL) => {
|
|
self.pending_cmd.set_verb(VerbCmd(1, Verb::Delete));
|
|
self.pending_cmd.set_motion(MotionCmd(1, Motion::WordMotion(To::Start, Word::Normal, Direction::Backward)));
|
|
self.register_and_return()
|
|
}
|
|
E(K::Char('H'), M::CTRL) |
|
|
E(K::Backspace, M::NONE) => {
|
|
self.pending_cmd.set_verb(VerbCmd(1,Verb::Delete));
|
|
self.pending_cmd.set_motion(MotionCmd(1,Motion::BackwardCharForced));
|
|
self.register_and_return()
|
|
}
|
|
|
|
E(K::BackTab, M::NONE) => {
|
|
self.pending_cmd.set_verb(VerbCmd(1,Verb::CompleteBackward));
|
|
self.register_and_return()
|
|
}
|
|
|
|
E(K::Char('I'), M::CTRL) |
|
|
E(K::Tab, M::NONE) => {
|
|
self.pending_cmd.set_verb(VerbCmd(1,Verb::Complete));
|
|
self.register_and_return()
|
|
}
|
|
|
|
E(K::Esc, M::NONE) => {
|
|
self.pending_cmd.set_verb(VerbCmd(1,Verb::NormalMode));
|
|
self.pending_cmd.set_motion(MotionCmd(1,Motion::BackwardChar));
|
|
self.register_and_return()
|
|
}
|
|
_ => common_cmds(key)
|
|
}
|
|
}
|
|
|
|
|
|
fn is_repeatable(&self) -> bool {
|
|
true
|
|
}
|
|
|
|
fn as_replay(&self) -> Option<CmdReplay> {
|
|
Some(CmdReplay::mode(self.cmds.clone(), self.repeat_count))
|
|
}
|
|
|
|
fn cursor_style(&self) -> String {
|
|
"\x1b[6 q".to_string()
|
|
}
|
|
fn pending_seq(&self) -> Option<String> {
|
|
None
|
|
}
|
|
fn move_cursor_on_undo(&self) -> bool {
|
|
true
|
|
}
|
|
fn clamp_cursor(&self) -> bool {
|
|
false
|
|
}
|
|
fn hist_scroll_start_pos(&self) -> Option<To> {
|
|
Some(To::End)
|
|
}
|
|
fn report_mode(&self) -> ModeReport {
|
|
ModeReport::Insert
|
|
}
|
|
}
|
|
|
|
#[derive(Default,Debug)]
|
|
pub struct ViReplace {
|
|
cmds: Vec<ViCmd>,
|
|
pending_cmd: ViCmd,
|
|
repeat_count: u16
|
|
}
|
|
|
|
impl ViReplace {
|
|
pub fn new() -> Self {
|
|
Self::default()
|
|
}
|
|
pub fn with_count(mut self, repeat_count: u16) -> Self {
|
|
self.repeat_count = repeat_count;
|
|
self
|
|
}
|
|
pub fn register_and_return(&mut self) -> Option<ViCmd> {
|
|
let mut cmd = self.take_cmd();
|
|
cmd.normalize_counts();
|
|
self.register_cmd(&cmd);
|
|
Some(cmd)
|
|
}
|
|
pub fn register_cmd(&mut self, cmd: &ViCmd) {
|
|
self.cmds.push(cmd.clone())
|
|
}
|
|
pub fn take_cmd(&mut self) -> ViCmd {
|
|
std::mem::take(&mut self.pending_cmd)
|
|
}
|
|
}
|
|
|
|
impl ViMode for ViReplace {
|
|
fn handle_key(&mut self, key: E) -> Option<ViCmd> {
|
|
match key {
|
|
E(K::Char(ch), M::NONE) => {
|
|
self.pending_cmd.set_verb(VerbCmd(1,Verb::ReplaceChar(ch)));
|
|
self.pending_cmd.set_motion(MotionCmd(1,Motion::ForwardChar));
|
|
self.register_and_return()
|
|
}
|
|
E(K::Char('W'), M::CTRL) => {
|
|
self.pending_cmd.set_verb(VerbCmd(1, Verb::Delete));
|
|
self.pending_cmd.set_motion(MotionCmd(1, Motion::WordMotion(To::Start, Word::Normal, Direction::Backward)));
|
|
self.register_and_return()
|
|
}
|
|
E(K::Char('H'), M::CTRL) |
|
|
E(K::Backspace, M::NONE) => {
|
|
self.pending_cmd.set_motion(MotionCmd(1,Motion::BackwardChar));
|
|
self.register_and_return()
|
|
}
|
|
|
|
E(K::BackTab, M::NONE) => {
|
|
self.pending_cmd.set_verb(VerbCmd(1,Verb::CompleteBackward));
|
|
self.register_and_return()
|
|
}
|
|
|
|
E(K::Char('I'), M::CTRL) |
|
|
E(K::Tab, M::NONE) => {
|
|
self.pending_cmd.set_verb(VerbCmd(1,Verb::Complete));
|
|
self.register_and_return()
|
|
}
|
|
|
|
E(K::Esc, M::NONE) => {
|
|
self.pending_cmd.set_verb(VerbCmd(1,Verb::NormalMode));
|
|
self.pending_cmd.set_motion(MotionCmd(1,Motion::BackwardChar));
|
|
self.register_and_return()
|
|
}
|
|
_ => common_cmds(key)
|
|
}
|
|
}
|
|
fn is_repeatable(&self) -> bool {
|
|
true
|
|
}
|
|
fn cursor_style(&self) -> String {
|
|
"\x1b[4 q".to_string()
|
|
}
|
|
fn pending_seq(&self) -> Option<String> {
|
|
None
|
|
}
|
|
fn as_replay(&self) -> Option<CmdReplay> {
|
|
Some(CmdReplay::mode(self.cmds.clone(), self.repeat_count))
|
|
}
|
|
fn move_cursor_on_undo(&self) -> bool {
|
|
true
|
|
}
|
|
fn clamp_cursor(&self) -> bool {
|
|
true
|
|
}
|
|
fn hist_scroll_start_pos(&self) -> Option<To> {
|
|
Some(To::End)
|
|
}
|
|
fn report_mode(&self) -> ModeReport {
|
|
ModeReport::Replace
|
|
}
|
|
}
|
|
#[derive(Default,Debug)]
|
|
pub struct ViNormal {
|
|
pending_seq: String,
|
|
pending_flags: CmdFlags,
|
|
}
|
|
|
|
impl ViNormal {
|
|
pub fn new() -> Self {
|
|
Self::default()
|
|
}
|
|
pub fn clear_cmd(&mut self) {
|
|
self.pending_seq = String::new();
|
|
}
|
|
pub fn take_cmd(&mut self) -> String {
|
|
std::mem::take(&mut self.pending_seq)
|
|
}
|
|
pub fn flags(&self) -> CmdFlags {
|
|
self.pending_flags
|
|
}
|
|
#[allow(clippy::unnecessary_unwrap)]
|
|
fn validate_combination(&self, verb: Option<&Verb>, motion: Option<&Motion>) -> CmdState {
|
|
if verb.is_none() {
|
|
match motion {
|
|
Some(Motion::TextObj(_,_)) => return CmdState::Invalid,
|
|
Some(_) => return CmdState::Complete,
|
|
None => return CmdState::Pending
|
|
}
|
|
}
|
|
if verb.is_some() && motion.is_none() {
|
|
match verb.unwrap() {
|
|
Verb::Put(_) => CmdState::Complete,
|
|
_ => CmdState::Pending
|
|
}
|
|
} else {
|
|
CmdState::Complete
|
|
}
|
|
}
|
|
pub fn parse_count(&self, chars: &mut Peekable<Chars<'_>>) -> Option<usize> {
|
|
let mut count = String::new();
|
|
let Some(_digit @ '1'..='9') = chars.peek() else {
|
|
return None
|
|
};
|
|
count.push(chars.next().unwrap());
|
|
while let Some(_digit @ '0'..='9') = chars.peek() {
|
|
count.push(chars.next().unwrap());
|
|
}
|
|
if !count.is_empty() {
|
|
count.parse::<usize>().ok()
|
|
} else {
|
|
None
|
|
}
|
|
}
|
|
/// End the parse and clear the pending sequence
|
|
#[track_caller]
|
|
pub fn quit_parse(&mut self) -> Option<ViCmd> {
|
|
flog!(DEBUG, std::panic::Location::caller());
|
|
flog!(WARN, "exiting parse early with sequence: {}",self.pending_seq);
|
|
self.clear_cmd();
|
|
None
|
|
}
|
|
pub fn try_parse(&mut self, ch: char) -> Option<ViCmd> {
|
|
self.pending_seq.push(ch);
|
|
let mut chars = self.pending_seq.chars().peekable();
|
|
|
|
/*
|
|
* Parse the register
|
|
*
|
|
* Registers can be any letter a-z or A-Z.
|
|
* While uncommon, it is possible to give a count to a register name.
|
|
*/
|
|
let register = 'reg_parse: {
|
|
let mut chars_clone = chars.clone();
|
|
let count = self.parse_count(&mut chars_clone);
|
|
|
|
let Some('"') = chars_clone.next() else {
|
|
break 'reg_parse RegisterName::default()
|
|
};
|
|
|
|
let Some(reg_name) = chars_clone.next() else {
|
|
return None // Pending register name
|
|
};
|
|
match reg_name {
|
|
'a'..='z' |
|
|
'A'..='Z' => { /* proceed */ }
|
|
_ => return self.quit_parse()
|
|
}
|
|
|
|
chars = chars_clone;
|
|
RegisterName::new(Some(reg_name), count)
|
|
};
|
|
|
|
/*
|
|
* We will now parse the verb
|
|
* If we hit an invalid sequence, we will call 'return self.quit_parse()'
|
|
* self.quit_parse() will clear the pending command and return None
|
|
*
|
|
* If we hit an incomplete sequence, we will simply return None.
|
|
* returning None leaves the pending sequence where it is
|
|
*
|
|
* Note that we do use a label here for the block and 'return' values from this scope
|
|
* using "break 'verb_parse <value>"
|
|
*/
|
|
let verb = 'verb_parse: {
|
|
let mut chars_clone = chars.clone();
|
|
let count = self.parse_count(&mut chars_clone).unwrap_or(1);
|
|
|
|
let Some(ch) = chars_clone.next() else {
|
|
break 'verb_parse None
|
|
};
|
|
match ch {
|
|
'g' => {
|
|
if let Some(ch) = chars_clone.peek() {
|
|
match ch {
|
|
'v' => {
|
|
return Some(
|
|
ViCmd {
|
|
register,
|
|
verb: Some(VerbCmd(1, Verb::VisualModeSelectLast)),
|
|
motion: None,
|
|
raw_seq: self.take_cmd(),
|
|
flags: self.flags(),
|
|
}
|
|
)
|
|
}
|
|
'~' => {
|
|
chars_clone.next();
|
|
chars = chars_clone;
|
|
break 'verb_parse Some(VerbCmd(count, Verb::ToggleCaseRange));
|
|
}
|
|
'u' => {
|
|
chars_clone.next();
|
|
chars = chars_clone;
|
|
break 'verb_parse Some(VerbCmd(count, Verb::ToLower));
|
|
}
|
|
'U' => {
|
|
chars_clone.next();
|
|
chars = chars_clone;
|
|
break 'verb_parse Some(VerbCmd(count, Verb::ToUpper));
|
|
}
|
|
'?' => {
|
|
chars_clone.next();
|
|
chars = chars_clone;
|
|
break 'verb_parse Some(VerbCmd(count, Verb::Rot13));
|
|
}
|
|
_ => break 'verb_parse None
|
|
}
|
|
} else {
|
|
break 'verb_parse None
|
|
}
|
|
}
|
|
'.' => {
|
|
return Some(
|
|
ViCmd {
|
|
register,
|
|
verb: Some(VerbCmd(count, Verb::RepeatLast)),
|
|
motion: None,
|
|
raw_seq: self.take_cmd(),
|
|
flags: self.flags()
|
|
}
|
|
)
|
|
}
|
|
'x' => {
|
|
return Some(
|
|
ViCmd {
|
|
register,
|
|
verb: Some(VerbCmd(count, Verb::Delete)),
|
|
motion: Some(MotionCmd(1, Motion::ForwardChar)),
|
|
raw_seq: self.take_cmd(),
|
|
flags: self.flags()
|
|
}
|
|
)
|
|
}
|
|
'X' => {
|
|
return Some(
|
|
ViCmd {
|
|
register,
|
|
verb: Some(VerbCmd(count, Verb::Delete)),
|
|
motion: Some(MotionCmd(1, Motion::BackwardChar)),
|
|
raw_seq: self.take_cmd(),
|
|
flags: self.flags()
|
|
}
|
|
)
|
|
}
|
|
's' => {
|
|
return Some(
|
|
ViCmd {
|
|
register,
|
|
verb: Some(VerbCmd(count, Verb::Change)),
|
|
motion: Some(MotionCmd(1, Motion::ForwardChar)),
|
|
raw_seq: self.take_cmd(),
|
|
flags: self.flags()
|
|
},
|
|
)
|
|
}
|
|
'S' => {
|
|
return Some(
|
|
ViCmd {
|
|
register,
|
|
verb: Some(VerbCmd(count, Verb::Change)),
|
|
motion: Some(MotionCmd(1, Motion::WholeLine)),
|
|
raw_seq: self.take_cmd(),
|
|
flags: self.flags()
|
|
}
|
|
)
|
|
}
|
|
'p' => {
|
|
chars = chars_clone;
|
|
break 'verb_parse Some(VerbCmd(count, Verb::Put(Anchor::After)));
|
|
}
|
|
'P' => {
|
|
chars = chars_clone;
|
|
break 'verb_parse Some(VerbCmd(count, Verb::Put(Anchor::Before)));
|
|
}
|
|
'>' => {
|
|
chars = chars_clone;
|
|
break 'verb_parse Some(VerbCmd(count, Verb::Indent));
|
|
}
|
|
'<' => {
|
|
chars = chars_clone;
|
|
break 'verb_parse Some(VerbCmd(count, Verb::Dedent));
|
|
}
|
|
'r' => {
|
|
let ch = chars_clone.next()?;
|
|
return Some(
|
|
ViCmd {
|
|
register,
|
|
verb: Some(VerbCmd(1, Verb::ReplaceCharInplace(ch,count as u16))),
|
|
motion: None,
|
|
raw_seq: self.take_cmd(),
|
|
flags: self.flags()
|
|
}
|
|
)
|
|
}
|
|
'R' => {
|
|
return Some(
|
|
ViCmd {
|
|
register,
|
|
verb: Some(VerbCmd(count, Verb::ReplaceMode)),
|
|
motion: None,
|
|
raw_seq: self.take_cmd(),
|
|
flags: self.flags()
|
|
}
|
|
)
|
|
}
|
|
'~' => {
|
|
return Some(
|
|
ViCmd {
|
|
register,
|
|
verb: Some(VerbCmd(1, Verb::ToggleCaseInplace(count as u16))),
|
|
motion: None,
|
|
raw_seq: self.take_cmd(),
|
|
flags: self.flags()
|
|
}
|
|
)
|
|
}
|
|
'u' => {
|
|
return Some(
|
|
ViCmd {
|
|
register,
|
|
verb: Some(VerbCmd(count, Verb::Undo)),
|
|
motion: None,
|
|
raw_seq: self.take_cmd(),
|
|
flags: self.flags()
|
|
}
|
|
)
|
|
}
|
|
'v' => {
|
|
return Some(
|
|
ViCmd {
|
|
register,
|
|
verb: Some(VerbCmd(count, Verb::VisualMode)),
|
|
motion: None,
|
|
raw_seq: self.take_cmd(),
|
|
flags: self.flags()
|
|
}
|
|
)
|
|
}
|
|
'V' => {
|
|
return Some(
|
|
ViCmd {
|
|
register,
|
|
verb: Some(VerbCmd(count, Verb::VisualModeLine)),
|
|
motion: None,
|
|
raw_seq: self.take_cmd(),
|
|
flags: self.flags()
|
|
}
|
|
)
|
|
}
|
|
'o' => {
|
|
return Some(
|
|
ViCmd {
|
|
register,
|
|
verb: Some(VerbCmd(count, Verb::InsertModeLineBreak(Anchor::After))),
|
|
motion: None,
|
|
raw_seq: self.take_cmd(),
|
|
flags: self.flags()
|
|
}
|
|
)
|
|
}
|
|
'O' => {
|
|
return Some(
|
|
ViCmd {
|
|
register,
|
|
verb: Some(VerbCmd(count, Verb::InsertModeLineBreak(Anchor::Before))),
|
|
motion: None,
|
|
raw_seq: self.take_cmd(),
|
|
flags: self.flags()
|
|
}
|
|
)
|
|
}
|
|
'a' => {
|
|
return Some(
|
|
ViCmd {
|
|
register,
|
|
verb: Some(VerbCmd(count, Verb::InsertMode)),
|
|
motion: Some(MotionCmd(1, Motion::ForwardChar)),
|
|
raw_seq: self.take_cmd(),
|
|
flags: self.flags()
|
|
}
|
|
)
|
|
}
|
|
'A' => {
|
|
return Some(
|
|
ViCmd {
|
|
register,
|
|
verb: Some(VerbCmd(count, Verb::InsertMode)),
|
|
motion: Some(MotionCmd(1, Motion::EndOfLine)),
|
|
raw_seq: self.take_cmd(),
|
|
flags: self.flags()
|
|
}
|
|
)
|
|
}
|
|
'i' => {
|
|
return Some(
|
|
ViCmd {
|
|
register,
|
|
verb: Some(VerbCmd(count, Verb::InsertMode)),
|
|
motion: None,
|
|
raw_seq: self.take_cmd(),
|
|
flags: self.flags()
|
|
}
|
|
)
|
|
}
|
|
'I' => {
|
|
return Some(
|
|
ViCmd {
|
|
register,
|
|
verb: Some(VerbCmd(count, Verb::InsertMode)),
|
|
motion: Some(MotionCmd(1, Motion::BeginningOfFirstWord)),
|
|
raw_seq: self.take_cmd(),
|
|
flags: self.flags()
|
|
}
|
|
)
|
|
}
|
|
'J' => {
|
|
return Some(
|
|
ViCmd {
|
|
register,
|
|
verb: Some(VerbCmd(count, Verb::JoinLines)),
|
|
motion: None,
|
|
raw_seq: self.take_cmd(),
|
|
flags: self.flags()
|
|
}
|
|
)
|
|
}
|
|
'y' => {
|
|
chars = chars_clone;
|
|
break 'verb_parse Some(VerbCmd(count, Verb::Yank))
|
|
}
|
|
'd' => {
|
|
chars = chars_clone;
|
|
break 'verb_parse Some(VerbCmd(count, Verb::Delete))
|
|
}
|
|
'c' => {
|
|
chars = chars_clone;
|
|
break 'verb_parse Some(VerbCmd(count, Verb::Change))
|
|
}
|
|
'Y' => {
|
|
return Some(
|
|
ViCmd {
|
|
register,
|
|
verb: Some(VerbCmd(count, Verb::Yank)),
|
|
motion: Some(MotionCmd(1, Motion::EndOfLine)),
|
|
raw_seq: self.take_cmd(),
|
|
flags: self.flags()
|
|
}
|
|
)
|
|
}
|
|
'D' => {
|
|
return Some(
|
|
ViCmd {
|
|
register,
|
|
verb: Some(VerbCmd(count, Verb::Delete)),
|
|
motion: Some(MotionCmd(1, Motion::EndOfLine)),
|
|
raw_seq: self.take_cmd(),
|
|
flags: self.flags()
|
|
}
|
|
)
|
|
}
|
|
'C' => {
|
|
return Some(
|
|
ViCmd {
|
|
register,
|
|
verb: Some(VerbCmd(count, Verb::Change)),
|
|
motion: Some(MotionCmd(1, Motion::EndOfLine)),
|
|
raw_seq: self.take_cmd(),
|
|
flags: self.flags()
|
|
}
|
|
)
|
|
}
|
|
'=' => {
|
|
chars = chars_clone;
|
|
break 'verb_parse Some(VerbCmd(count, Verb::Equalize))
|
|
}
|
|
_ => break 'verb_parse None
|
|
}
|
|
};
|
|
|
|
let motion = 'motion_parse: {
|
|
let mut chars_clone = chars.clone();
|
|
let count = self.parse_count(&mut chars_clone).unwrap_or(1);
|
|
|
|
let Some(ch) = chars_clone.next() else {
|
|
break 'motion_parse None
|
|
};
|
|
// Double inputs like 'dd' and 'cc', and some special cases
|
|
match (ch, &verb) {
|
|
// Double inputs
|
|
('?', Some(VerbCmd(_,Verb::Rot13))) |
|
|
('d', Some(VerbCmd(_,Verb::Delete))) |
|
|
('c', Some(VerbCmd(_,Verb::Change))) |
|
|
('y', Some(VerbCmd(_,Verb::Yank))) |
|
|
('=', Some(VerbCmd(_,Verb::Equalize))) |
|
|
('u', Some(VerbCmd(_,Verb::ToLower))) |
|
|
('U', Some(VerbCmd(_,Verb::ToUpper))) |
|
|
('~', Some(VerbCmd(_,Verb::ToggleCaseRange))) |
|
|
('>', Some(VerbCmd(_,Verb::Indent))) |
|
|
('<', Some(VerbCmd(_,Verb::Dedent))) => break 'motion_parse Some(MotionCmd(count, Motion::WholeLine)),
|
|
('W', Some(VerbCmd(_, Verb::Change))) => {
|
|
// Same with 'W'
|
|
break 'motion_parse Some(MotionCmd(count, Motion::WordMotion(To::End, Word::Big, Direction::Forward)));
|
|
}
|
|
_ => { /* Nothing weird, so let's continue */ }
|
|
}
|
|
match ch {
|
|
'g' => {
|
|
let Some(ch) = chars_clone.peek() else {
|
|
break 'motion_parse None
|
|
};
|
|
match ch {
|
|
'g' => {
|
|
chars_clone.next();
|
|
chars = chars_clone;
|
|
break 'motion_parse Some(MotionCmd(count, Motion::BeginningOfBuffer))
|
|
}
|
|
'e' => {
|
|
chars = chars_clone;
|
|
break 'motion_parse Some(MotionCmd(count, Motion::WordMotion(To::End, Word::Normal, Direction::Backward)));
|
|
}
|
|
'E' => {
|
|
chars = chars_clone;
|
|
break 'motion_parse Some(MotionCmd(count, Motion::WordMotion(To::End, Word::Big, Direction::Backward)));
|
|
}
|
|
'k' => {
|
|
chars = chars_clone;
|
|
break 'motion_parse Some(MotionCmd(count, Motion::ScreenLineUp));
|
|
}
|
|
'j' => {
|
|
chars = chars_clone;
|
|
break 'motion_parse Some(MotionCmd(count, Motion::ScreenLineDown));
|
|
}
|
|
'_' => {
|
|
chars = chars_clone;
|
|
break 'motion_parse Some(MotionCmd(count, Motion::EndOfLastWord));
|
|
}
|
|
'0' => {
|
|
chars = chars_clone;
|
|
break 'motion_parse Some(MotionCmd(count, Motion::BeginningOfScreenLine));
|
|
}
|
|
'^' => {
|
|
chars = chars_clone;
|
|
break 'motion_parse Some(MotionCmd(count, Motion::FirstGraphicalOnScreenLine));
|
|
}
|
|
_ => return self.quit_parse()
|
|
}
|
|
}
|
|
'v' => {
|
|
// We got 'v' after a verb
|
|
// Instead of normal operations, we will calculate the span based on how visual mode would see it
|
|
if self.flags().intersects(CmdFlags::VISUAL | CmdFlags::VISUAL_LINE | CmdFlags::VISUAL_BLOCK) {
|
|
// We can't have more than one of these
|
|
return self.quit_parse();
|
|
}
|
|
self.pending_flags |= CmdFlags::VISUAL;
|
|
break 'motion_parse None
|
|
}
|
|
'V' => {
|
|
// We got 'V' after a verb
|
|
// Instead of normal operations, we will calculate the span based on how visual line mode would see it
|
|
if self.flags().intersects(CmdFlags::VISUAL | CmdFlags::VISUAL_LINE | CmdFlags::VISUAL_BLOCK) {
|
|
// We can't have more than one of these
|
|
// I know vim can technically do this, but it doesn't really make sense to allow it
|
|
// since even in vim only the first one given is used
|
|
return self.quit_parse();
|
|
}
|
|
self.pending_flags |= CmdFlags::VISUAL;
|
|
break 'motion_parse None
|
|
}
|
|
// TODO: figure out how to include 'Ctrl+V' here, might need a refactor
|
|
'G' => {
|
|
chars = chars_clone;
|
|
break 'motion_parse Some(MotionCmd(count, Motion::EndOfBuffer));
|
|
}
|
|
'f' => {
|
|
let Some(ch) = chars_clone.peek() else {
|
|
break 'motion_parse None
|
|
};
|
|
|
|
break 'motion_parse Some(MotionCmd(count, Motion::CharSearch(Direction::Forward, Dest::On, *ch)))
|
|
}
|
|
'F' => {
|
|
let Some(ch) = chars_clone.peek() else {
|
|
break 'motion_parse None
|
|
};
|
|
|
|
break 'motion_parse Some(MotionCmd(count, Motion::CharSearch(Direction::Backward, Dest::On, *ch)))
|
|
}
|
|
't' => {
|
|
let Some(ch) = chars_clone.peek() else {
|
|
break 'motion_parse None
|
|
};
|
|
|
|
break 'motion_parse Some(MotionCmd(count, Motion::CharSearch(Direction::Forward, Dest::Before, *ch)))
|
|
}
|
|
'T' => {
|
|
let Some(ch) = chars_clone.peek() else {
|
|
break 'motion_parse None
|
|
};
|
|
|
|
break 'motion_parse Some(MotionCmd(count, Motion::CharSearch(Direction::Backward, Dest::Before, *ch)))
|
|
}
|
|
';' => {
|
|
chars = chars_clone;
|
|
break 'motion_parse Some(MotionCmd(count, Motion::RepeatMotion));
|
|
}
|
|
',' => {
|
|
chars = chars_clone;
|
|
break 'motion_parse Some(MotionCmd(count, Motion::RepeatMotionRev));
|
|
}
|
|
'|' => {
|
|
chars = chars_clone;
|
|
break 'motion_parse Some(MotionCmd(count, Motion::ToColumn));
|
|
}
|
|
'^' => {
|
|
chars = chars_clone;
|
|
break 'motion_parse Some(MotionCmd(count, Motion::BeginningOfFirstWord));
|
|
}
|
|
'0' => {
|
|
chars = chars_clone;
|
|
break 'motion_parse Some(MotionCmd(count, Motion::BeginningOfLine));
|
|
}
|
|
'$' => {
|
|
chars = chars_clone;
|
|
break 'motion_parse Some(MotionCmd(count, Motion::EndOfLine));
|
|
}
|
|
'k' => {
|
|
chars = chars_clone;
|
|
break 'motion_parse Some(MotionCmd(count, Motion::LineUp));
|
|
}
|
|
'j' => {
|
|
chars = chars_clone;
|
|
break 'motion_parse Some(MotionCmd(count, Motion::LineDown));
|
|
}
|
|
'h' => {
|
|
chars = chars_clone;
|
|
break 'motion_parse Some(MotionCmd(count, Motion::BackwardChar));
|
|
}
|
|
'l' => {
|
|
chars = chars_clone;
|
|
break 'motion_parse Some(MotionCmd(count, Motion::ForwardChar));
|
|
}
|
|
'w' => {
|
|
chars = chars_clone;
|
|
break 'motion_parse Some(MotionCmd(count, Motion::WordMotion(To::Start, Word::Normal, Direction::Forward)));
|
|
}
|
|
'W' => {
|
|
chars = chars_clone;
|
|
break 'motion_parse Some(MotionCmd(count, Motion::WordMotion(To::Start, Word::Big, Direction::Forward)));
|
|
}
|
|
'e' => {
|
|
chars = chars_clone;
|
|
break 'motion_parse Some(MotionCmd(count, Motion::WordMotion(To::End, Word::Normal, Direction::Forward)));
|
|
}
|
|
'E' => {
|
|
chars = chars_clone;
|
|
break 'motion_parse Some(MotionCmd(count, Motion::WordMotion(To::End, Word::Big, Direction::Forward)));
|
|
}
|
|
'b' => {
|
|
chars = chars_clone;
|
|
break 'motion_parse Some(MotionCmd(count, Motion::WordMotion(To::Start, Word::Normal, Direction::Backward)));
|
|
}
|
|
'B' => {
|
|
chars = chars_clone;
|
|
break 'motion_parse Some(MotionCmd(count, Motion::WordMotion(To::Start, Word::Big, Direction::Backward)));
|
|
}
|
|
ch if ch == 'i' || ch == 'a' => {
|
|
let bound = match ch {
|
|
'i' => Bound::Inside,
|
|
'a' => Bound::Around,
|
|
_ => unreachable!()
|
|
};
|
|
if chars_clone.peek().is_none() {
|
|
break 'motion_parse None
|
|
}
|
|
let obj = match chars_clone.next().unwrap() {
|
|
'w' => TextObj::Word(Word::Normal),
|
|
'W' => TextObj::Word(Word::Big),
|
|
'"' => TextObj::DoubleQuote,
|
|
'\'' => TextObj::SingleQuote,
|
|
'`' => TextObj::BacktickQuote,
|
|
'(' | ')' | 'b' => TextObj::Paren,
|
|
'{' | '}' | 'B' => TextObj::Brace,
|
|
'[' | ']' => TextObj::Bracket,
|
|
'<' | '>' => TextObj::Angle,
|
|
_ => return self.quit_parse()
|
|
};
|
|
chars = chars_clone;
|
|
break 'motion_parse Some(MotionCmd(count, Motion::TextObj(obj, bound)))
|
|
}
|
|
_ => return self.quit_parse(),
|
|
}
|
|
};
|
|
|
|
if chars.peek().is_some() {
|
|
flog!(WARN, "Unused characters in Vi command parse!");
|
|
flog!(WARN, "{:?}",chars)
|
|
}
|
|
|
|
let verb_ref = verb.as_ref().map(|v| &v.1);
|
|
let motion_ref = motion.as_ref().map(|m| &m.1);
|
|
|
|
match self.validate_combination(verb_ref, motion_ref) {
|
|
CmdState::Complete => {
|
|
Some(
|
|
ViCmd {
|
|
register,
|
|
verb,
|
|
motion,
|
|
raw_seq: std::mem::take(&mut self.pending_seq),
|
|
flags: self.flags()
|
|
}
|
|
)
|
|
}
|
|
CmdState::Pending => {
|
|
None
|
|
}
|
|
CmdState::Invalid => {
|
|
self.pending_seq.clear();
|
|
None
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
impl ViMode for ViNormal {
|
|
fn handle_key(&mut self, key: E) -> Option<ViCmd> {
|
|
let mut cmd = match key {
|
|
E(K::Char(ch), M::NONE) => self.try_parse(ch),
|
|
E(K::Backspace, M::NONE) => {
|
|
Some(ViCmd {
|
|
register: Default::default(),
|
|
verb: None,
|
|
motion: Some(MotionCmd(1, Motion::BackwardChar)),
|
|
raw_seq: "".into(),
|
|
flags: self.flags()
|
|
})
|
|
}
|
|
E(K::Char('R'), M::CTRL) => {
|
|
let mut chars = self.pending_seq.chars().peekable();
|
|
let count = self.parse_count(&mut chars).unwrap_or(1);
|
|
Some(
|
|
ViCmd {
|
|
register: RegisterName::default(),
|
|
verb: Some(VerbCmd(count,Verb::Redo)),
|
|
motion: None,
|
|
raw_seq: self.take_cmd(),
|
|
flags: self.flags()
|
|
}
|
|
)
|
|
}
|
|
E(K::Esc, M::NONE) => {
|
|
self.clear_cmd();
|
|
None
|
|
}
|
|
_ => {
|
|
if let Some(cmd) = common_cmds(key) {
|
|
self.clear_cmd();
|
|
Some(cmd)
|
|
} else {
|
|
None
|
|
}
|
|
}
|
|
};
|
|
|
|
if let Some(cmd) = cmd.as_mut() {
|
|
cmd.normalize_counts();
|
|
};
|
|
cmd
|
|
}
|
|
|
|
fn is_repeatable(&self) -> bool {
|
|
false
|
|
}
|
|
|
|
fn as_replay(&self) -> Option<CmdReplay> {
|
|
None
|
|
}
|
|
|
|
fn cursor_style(&self) -> String {
|
|
"\x1b[2 q".to_string()
|
|
}
|
|
|
|
fn pending_seq(&self) -> Option<String> {
|
|
Some(self.pending_seq.clone())
|
|
}
|
|
|
|
fn move_cursor_on_undo(&self) -> bool {
|
|
false
|
|
}
|
|
fn clamp_cursor(&self) -> bool {
|
|
true
|
|
}
|
|
fn hist_scroll_start_pos(&self) -> Option<To> {
|
|
None
|
|
}
|
|
fn report_mode(&self) -> ModeReport {
|
|
ModeReport::Normal
|
|
}
|
|
}
|
|
|
|
#[derive(Default,Debug)]
|
|
pub struct ViVisual {
|
|
pending_seq: String,
|
|
}
|
|
|
|
impl ViVisual {
|
|
pub fn new() -> Self {
|
|
Self::default()
|
|
}
|
|
pub fn clear_cmd(&mut self) {
|
|
self.pending_seq = String::new();
|
|
}
|
|
pub fn take_cmd(&mut self) -> String {
|
|
std::mem::take(&mut self.pending_seq)
|
|
}
|
|
|
|
#[allow(clippy::unnecessary_unwrap)]
|
|
fn validate_combination(&self, verb: Option<&Verb>, motion: Option<&Motion>) -> CmdState {
|
|
if verb.is_none() {
|
|
match motion {
|
|
Some(Motion::TextObj(_,_)) => return CmdState::Invalid,
|
|
Some(_) => return CmdState::Complete,
|
|
None => return CmdState::Pending
|
|
}
|
|
}
|
|
if motion.is_none() && verb.is_some() {
|
|
match verb.unwrap() {
|
|
Verb::Put(_) => CmdState::Complete,
|
|
_ => CmdState::Pending
|
|
}
|
|
} else {
|
|
CmdState::Complete
|
|
}
|
|
}
|
|
pub fn parse_count(&self, chars: &mut Peekable<Chars<'_>>) -> Option<usize> {
|
|
let mut count = String::new();
|
|
let Some(_digit @ '1'..='9') = chars.peek() else {
|
|
return None
|
|
};
|
|
count.push(chars.next().unwrap());
|
|
while let Some(_digit @ '0'..='9') = chars.peek() {
|
|
count.push(chars.next().unwrap());
|
|
}
|
|
if !count.is_empty() {
|
|
count.parse::<usize>().ok()
|
|
} else {
|
|
None
|
|
}
|
|
}
|
|
/// End the parse and clear the pending sequence
|
|
#[track_caller]
|
|
pub fn quit_parse(&mut self) -> Option<ViCmd> {
|
|
flog!(DEBUG, std::panic::Location::caller());
|
|
flog!(WARN, "exiting parse early with sequence: {}",self.pending_seq);
|
|
self.clear_cmd();
|
|
None
|
|
}
|
|
pub fn try_parse(&mut self, ch: char) -> Option<ViCmd> {
|
|
self.pending_seq.push(ch);
|
|
let mut chars = self.pending_seq.chars().peekable();
|
|
|
|
let register = 'reg_parse: {
|
|
let mut chars_clone = chars.clone();
|
|
let count = self.parse_count(&mut chars_clone);
|
|
|
|
let Some('"') = chars_clone.next() else {
|
|
break 'reg_parse RegisterName::default()
|
|
};
|
|
|
|
let Some(reg_name) = chars_clone.next() else {
|
|
return None // Pending register name
|
|
};
|
|
match reg_name {
|
|
'a'..='z' |
|
|
'A'..='Z' => { /* proceed */ }
|
|
_ => return self.quit_parse()
|
|
}
|
|
|
|
chars = chars_clone;
|
|
RegisterName::new(Some(reg_name), count)
|
|
};
|
|
|
|
let verb = 'verb_parse: {
|
|
let mut chars_clone = chars.clone();
|
|
let count = self.parse_count(&mut chars_clone).unwrap_or(1);
|
|
|
|
let Some(ch) = chars_clone.next() else {
|
|
break 'verb_parse None
|
|
};
|
|
match ch {
|
|
'g' => {
|
|
if let Some(ch) = chars_clone.peek() {
|
|
match ch {
|
|
'v' => {
|
|
return Some(
|
|
ViCmd {
|
|
register,
|
|
verb: Some(VerbCmd(1, Verb::VisualModeSelectLast)),
|
|
motion: None,
|
|
raw_seq: self.take_cmd(),
|
|
flags: CmdFlags::empty()
|
|
}
|
|
)
|
|
}
|
|
'?' => {
|
|
return Some(
|
|
ViCmd {
|
|
register,
|
|
verb: Some(VerbCmd(1, Verb::Rot13)),
|
|
motion: None,
|
|
raw_seq: self.take_cmd(),
|
|
flags: CmdFlags::empty()
|
|
}
|
|
)
|
|
}
|
|
_ => break 'verb_parse None
|
|
}
|
|
} else {
|
|
break 'verb_parse None
|
|
}
|
|
}
|
|
'.' => {
|
|
return Some(
|
|
ViCmd {
|
|
register,
|
|
verb: Some(VerbCmd(count, Verb::RepeatLast)),
|
|
motion: None,
|
|
raw_seq: self.take_cmd(),
|
|
flags: CmdFlags::empty()
|
|
}
|
|
)
|
|
}
|
|
'x' => {
|
|
chars = chars_clone;
|
|
break 'verb_parse Some(VerbCmd(count, Verb::Delete));
|
|
}
|
|
'X' => {
|
|
return Some(
|
|
ViCmd {
|
|
register,
|
|
verb: Some(VerbCmd(1, Verb::Delete)),
|
|
motion: Some(MotionCmd(1, Motion::WholeLine)),
|
|
raw_seq: self.take_cmd(),
|
|
flags: CmdFlags::empty()
|
|
}
|
|
)
|
|
}
|
|
'Y' => {
|
|
return Some(
|
|
ViCmd {
|
|
register,
|
|
verb: Some(VerbCmd(1, Verb::Yank)),
|
|
motion: Some(MotionCmd(1, Motion::WholeLine)),
|
|
raw_seq: self.take_cmd(),
|
|
flags: CmdFlags::empty()
|
|
}
|
|
)
|
|
}
|
|
'D' => {
|
|
return Some(
|
|
ViCmd {
|
|
register,
|
|
verb: Some(VerbCmd(1, Verb::Delete)),
|
|
motion: Some(MotionCmd(1, Motion::WholeLine)),
|
|
raw_seq: self.take_cmd(),
|
|
flags: CmdFlags::empty()
|
|
}
|
|
)
|
|
}
|
|
'R' |
|
|
'C' => {
|
|
return Some(
|
|
ViCmd {
|
|
register,
|
|
verb: Some(VerbCmd(1, Verb::Change)),
|
|
motion: Some(MotionCmd(1, Motion::WholeLine)),
|
|
raw_seq: self.take_cmd(),
|
|
flags: CmdFlags::empty()
|
|
}
|
|
)
|
|
}
|
|
'>' => {
|
|
return Some(
|
|
ViCmd {
|
|
register,
|
|
verb: Some(VerbCmd(1, Verb::Indent)),
|
|
motion: Some(MotionCmd(1, Motion::WholeLine)),
|
|
raw_seq: self.take_cmd(),
|
|
flags: CmdFlags::empty()
|
|
}
|
|
)
|
|
}
|
|
'<' => {
|
|
return Some(
|
|
ViCmd {
|
|
register,
|
|
verb: Some(VerbCmd(1, Verb::Dedent)),
|
|
motion: Some(MotionCmd(1, Motion::WholeLine)),
|
|
raw_seq: self.take_cmd(),
|
|
flags: CmdFlags::empty()
|
|
}
|
|
)
|
|
}
|
|
'=' => {
|
|
return Some(
|
|
ViCmd {
|
|
register,
|
|
verb: Some(VerbCmd(1, Verb::Equalize)),
|
|
motion: Some(MotionCmd(1, Motion::WholeLine)),
|
|
raw_seq: self.take_cmd(),
|
|
flags: CmdFlags::empty()
|
|
}
|
|
)
|
|
}
|
|
'p' |
|
|
'P' => {
|
|
chars = chars_clone;
|
|
break 'verb_parse Some(VerbCmd(count, Verb::Put(Anchor::Before)));
|
|
}
|
|
'r' => {
|
|
let ch = chars_clone.next()?;
|
|
return Some(
|
|
ViCmd {
|
|
register,
|
|
verb: Some(VerbCmd(1, Verb::ReplaceChar(ch))),
|
|
motion: None,
|
|
raw_seq: self.take_cmd(),
|
|
flags: CmdFlags::empty()
|
|
}
|
|
)
|
|
}
|
|
'~' => {
|
|
return Some(
|
|
ViCmd {
|
|
register,
|
|
verb: Some(VerbCmd(1, Verb::ToggleCaseRange)),
|
|
motion: None,
|
|
raw_seq: self.take_cmd(),
|
|
flags: CmdFlags::empty()
|
|
}
|
|
)
|
|
}
|
|
'u' => {
|
|
return Some(
|
|
ViCmd {
|
|
register,
|
|
verb: Some(VerbCmd(count, Verb::ToLower)),
|
|
motion: None,
|
|
raw_seq: self.take_cmd(),
|
|
flags: CmdFlags::empty()
|
|
}
|
|
)
|
|
}
|
|
'U' => {
|
|
return Some(
|
|
ViCmd {
|
|
register,
|
|
verb: Some(VerbCmd(count, Verb::ToUpper)),
|
|
motion: None,
|
|
raw_seq: self.take_cmd(),
|
|
flags: CmdFlags::empty()
|
|
}
|
|
)
|
|
}
|
|
'O' |
|
|
'o' => {
|
|
return Some(
|
|
ViCmd {
|
|
register,
|
|
verb: Some(VerbCmd(count, Verb::SwapVisualAnchor)),
|
|
motion: None,
|
|
raw_seq: self.take_cmd(),
|
|
flags: CmdFlags::empty()
|
|
}
|
|
)
|
|
}
|
|
'A' => {
|
|
return Some(
|
|
ViCmd {
|
|
register,
|
|
verb: Some(VerbCmd(count, Verb::InsertMode)),
|
|
motion: Some(MotionCmd(1, Motion::ForwardChar)),
|
|
raw_seq: self.take_cmd(),
|
|
flags: CmdFlags::empty()
|
|
}
|
|
)
|
|
}
|
|
'I' => {
|
|
return Some(
|
|
ViCmd {
|
|
register,
|
|
verb: Some(VerbCmd(count, Verb::InsertMode)),
|
|
motion: Some(MotionCmd(1, Motion::BeginningOfLine)),
|
|
raw_seq: self.take_cmd(),
|
|
flags: CmdFlags::empty()
|
|
}
|
|
)
|
|
}
|
|
'J' => {
|
|
return Some(
|
|
ViCmd {
|
|
register,
|
|
verb: Some(VerbCmd(count, Verb::JoinLines)),
|
|
motion: None,
|
|
raw_seq: self.take_cmd(),
|
|
flags: CmdFlags::empty()
|
|
}
|
|
)
|
|
}
|
|
'y' => {
|
|
chars = chars_clone;
|
|
break 'verb_parse Some(VerbCmd(count, Verb::Yank))
|
|
}
|
|
'd' => {
|
|
chars = chars_clone;
|
|
break 'verb_parse Some(VerbCmd(count, Verb::Delete))
|
|
}
|
|
'c' => {
|
|
chars = chars_clone;
|
|
break 'verb_parse Some(VerbCmd(count, Verb::Change))
|
|
}
|
|
_ => break 'verb_parse None
|
|
}
|
|
};
|
|
|
|
if let Some(verb) = verb {
|
|
return Some(ViCmd {
|
|
register,
|
|
verb: Some(verb),
|
|
motion: None,
|
|
raw_seq: self.take_cmd(),
|
|
flags: CmdFlags::empty()
|
|
})
|
|
}
|
|
|
|
let motion = 'motion_parse: {
|
|
let mut chars_clone = chars.clone();
|
|
let count = self.parse_count(&mut chars_clone).unwrap_or(1);
|
|
|
|
let Some(ch) = chars_clone.next() else {
|
|
break 'motion_parse None
|
|
};
|
|
match (ch, &verb) {
|
|
('d', Some(VerbCmd(_,Verb::Delete))) |
|
|
('c', Some(VerbCmd(_,Verb::Change))) |
|
|
('y', Some(VerbCmd(_,Verb::Yank))) |
|
|
('=', Some(VerbCmd(_,Verb::Equalize))) |
|
|
('>', Some(VerbCmd(_,Verb::Indent))) |
|
|
('<', Some(VerbCmd(_,Verb::Dedent))) => break 'motion_parse Some(MotionCmd(count, Motion::WholeLine)),
|
|
_ => {}
|
|
}
|
|
match ch {
|
|
'g' => {
|
|
if let Some(ch) = chars_clone.peek() {
|
|
match ch {
|
|
'g' => {
|
|
chars_clone.next();
|
|
chars = chars_clone;
|
|
break 'motion_parse Some(MotionCmd(count, Motion::BeginningOfBuffer))
|
|
}
|
|
'e' => {
|
|
chars_clone.next();
|
|
chars = chars_clone;
|
|
break 'motion_parse Some(MotionCmd(count, Motion::WordMotion(To::End, Word::Normal, Direction::Backward)));
|
|
}
|
|
'E' => {
|
|
chars_clone.next();
|
|
chars = chars_clone;
|
|
break 'motion_parse Some(MotionCmd(count, Motion::WordMotion(To::End, Word::Big, Direction::Backward)));
|
|
}
|
|
'k' => {
|
|
chars_clone.next();
|
|
chars = chars_clone;
|
|
break 'motion_parse Some(MotionCmd(count, Motion::ScreenLineUp));
|
|
}
|
|
'j' => {
|
|
chars_clone.next();
|
|
chars = chars_clone;
|
|
break 'motion_parse Some(MotionCmd(count, Motion::ScreenLineDown));
|
|
}
|
|
_ => return self.quit_parse()
|
|
}
|
|
} else {
|
|
break 'motion_parse None
|
|
}
|
|
}
|
|
'f' => {
|
|
let Some(ch) = chars_clone.peek() else {
|
|
break 'motion_parse None
|
|
};
|
|
|
|
break 'motion_parse Some(MotionCmd(count, Motion::CharSearch(Direction::Forward, Dest::On, *ch)))
|
|
}
|
|
'F' => {
|
|
let Some(ch) = chars_clone.peek() else {
|
|
break 'motion_parse None
|
|
};
|
|
|
|
break 'motion_parse Some(MotionCmd(count, Motion::CharSearch(Direction::Backward, Dest::On, *ch)))
|
|
}
|
|
't' => {
|
|
let Some(ch) = chars_clone.peek() else {
|
|
break 'motion_parse None
|
|
};
|
|
|
|
break 'motion_parse Some(MotionCmd(count, Motion::CharSearch(Direction::Forward, Dest::Before, *ch)))
|
|
}
|
|
'T' => {
|
|
let Some(ch) = chars_clone.peek() else {
|
|
break 'motion_parse None
|
|
};
|
|
|
|
break 'motion_parse Some(MotionCmd(count, Motion::CharSearch(Direction::Backward, Dest::Before, *ch)))
|
|
}
|
|
';' => {
|
|
chars = chars_clone;
|
|
break 'motion_parse Some(MotionCmd(count, Motion::RepeatMotion));
|
|
}
|
|
',' => {
|
|
chars = chars_clone;
|
|
break 'motion_parse Some(MotionCmd(count, Motion::RepeatMotionRev));
|
|
}
|
|
'|' => {
|
|
chars = chars_clone;
|
|
break 'motion_parse Some(MotionCmd(count, Motion::ToColumn));
|
|
}
|
|
'0' => {
|
|
chars = chars_clone;
|
|
break 'motion_parse Some(MotionCmd(count, Motion::BeginningOfLine));
|
|
}
|
|
'$' => {
|
|
chars = chars_clone;
|
|
break 'motion_parse Some(MotionCmd(count, Motion::EndOfLine));
|
|
}
|
|
'k' => {
|
|
chars = chars_clone;
|
|
break 'motion_parse Some(MotionCmd(count, Motion::LineUp));
|
|
}
|
|
'j' => {
|
|
chars = chars_clone;
|
|
break 'motion_parse Some(MotionCmd(count, Motion::LineDown));
|
|
}
|
|
'h' => {
|
|
chars = chars_clone;
|
|
break 'motion_parse Some(MotionCmd(count, Motion::BackwardChar));
|
|
}
|
|
'l' => {
|
|
chars = chars_clone;
|
|
break 'motion_parse Some(MotionCmd(count, Motion::ForwardChar));
|
|
}
|
|
'w' => {
|
|
chars = chars_clone;
|
|
break 'motion_parse Some(MotionCmd(count, Motion::WordMotion(To::Start, Word::Normal, Direction::Forward)));
|
|
}
|
|
'W' => {
|
|
chars = chars_clone;
|
|
break 'motion_parse Some(MotionCmd(count, Motion::WordMotion(To::Start, Word::Big, Direction::Forward)));
|
|
}
|
|
'e' => {
|
|
chars = chars_clone;
|
|
break 'motion_parse Some(MotionCmd(count, Motion::WordMotion(To::End, Word::Normal, Direction::Forward)));
|
|
}
|
|
'E' => {
|
|
chars = chars_clone;
|
|
break 'motion_parse Some(MotionCmd(count, Motion::WordMotion(To::End, Word::Big, Direction::Forward)));
|
|
}
|
|
'b' => {
|
|
chars = chars_clone;
|
|
break 'motion_parse Some(MotionCmd(count, Motion::WordMotion(To::Start, Word::Normal, Direction::Backward)));
|
|
}
|
|
'B' => {
|
|
chars = chars_clone;
|
|
break 'motion_parse Some(MotionCmd(count, Motion::WordMotion(To::Start, Word::Big, Direction::Backward)));
|
|
}
|
|
ch if ch == 'i' || ch == 'a' => {
|
|
let bound = match ch {
|
|
'i' => Bound::Inside,
|
|
'a' => Bound::Around,
|
|
_ => unreachable!()
|
|
};
|
|
if chars_clone.peek().is_none() {
|
|
break 'motion_parse None
|
|
}
|
|
let obj = match chars_clone.next().unwrap() {
|
|
'w' => TextObj::Word(Word::Normal),
|
|
'W' => TextObj::Word(Word::Big),
|
|
'"' => TextObj::DoubleQuote,
|
|
'\'' => TextObj::SingleQuote,
|
|
'`' => TextObj::BacktickQuote,
|
|
'(' | ')' | 'b' => TextObj::Paren,
|
|
'{' | '}' | 'B' => TextObj::Brace,
|
|
'[' | ']' => TextObj::Bracket,
|
|
'<' | '>' => TextObj::Angle,
|
|
_ => return self.quit_parse()
|
|
};
|
|
chars = chars_clone;
|
|
break 'motion_parse Some(MotionCmd(count, Motion::TextObj(obj, bound)))
|
|
}
|
|
_ => return self.quit_parse(),
|
|
}
|
|
};
|
|
|
|
if chars.peek().is_some() {
|
|
flog!(WARN, "Unused characters in Vi command parse!");
|
|
flog!(WARN, "{:?}",chars)
|
|
}
|
|
|
|
let verb_ref = verb.as_ref().map(|v| &v.1);
|
|
let motion_ref = motion.as_ref().map(|m| &m.1);
|
|
|
|
match self.validate_combination(verb_ref, motion_ref) {
|
|
CmdState::Complete => {
|
|
Some(
|
|
ViCmd {
|
|
register,
|
|
verb,
|
|
motion,
|
|
raw_seq: std::mem::take(&mut self.pending_seq),
|
|
flags: CmdFlags::empty()
|
|
}
|
|
)
|
|
}
|
|
CmdState::Pending => {
|
|
None
|
|
}
|
|
CmdState::Invalid => {
|
|
self.pending_seq.clear();
|
|
None
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
impl ViMode for ViVisual {
|
|
fn handle_key(&mut self, key: E) -> Option<ViCmd> {
|
|
let mut cmd = match key {
|
|
E(K::Char(ch), M::NONE) => self.try_parse(ch),
|
|
E(K::Backspace, M::NONE) => {
|
|
Some(ViCmd {
|
|
register: Default::default(),
|
|
verb: None,
|
|
motion: Some(MotionCmd(1, Motion::BackwardChar)),
|
|
raw_seq: "".into(),
|
|
flags: CmdFlags::empty()
|
|
})
|
|
}
|
|
E(K::Char('R'), M::CTRL) => {
|
|
let mut chars = self.pending_seq.chars().peekable();
|
|
let count = self.parse_count(&mut chars).unwrap_or(1);
|
|
Some(
|
|
ViCmd {
|
|
register: RegisterName::default(),
|
|
verb: Some(VerbCmd(count,Verb::Redo)),
|
|
motion: None,
|
|
raw_seq: self.take_cmd(),
|
|
flags: CmdFlags::empty()
|
|
}
|
|
)
|
|
}
|
|
E(K::Esc, M::NONE) => {
|
|
Some(
|
|
ViCmd {
|
|
register: Default::default(),
|
|
verb: Some(VerbCmd(1, Verb::NormalMode)),
|
|
motion: Some(MotionCmd(1, Motion::Null)),
|
|
raw_seq: self.take_cmd(),
|
|
flags: CmdFlags::empty()
|
|
})
|
|
}
|
|
_ => {
|
|
if let Some(cmd) = common_cmds(key) {
|
|
self.clear_cmd();
|
|
Some(cmd)
|
|
} else {
|
|
None
|
|
}
|
|
}
|
|
};
|
|
|
|
if let Some(cmd) = cmd.as_mut() {
|
|
cmd.normalize_counts();
|
|
};
|
|
cmd
|
|
}
|
|
|
|
fn is_repeatable(&self) -> bool {
|
|
true
|
|
}
|
|
|
|
fn as_replay(&self) -> Option<CmdReplay> {
|
|
None
|
|
}
|
|
|
|
fn cursor_style(&self) -> String {
|
|
"\x1b[2 q".to_string()
|
|
}
|
|
|
|
fn pending_seq(&self) -> Option<String> {
|
|
Some(self.pending_seq.clone())
|
|
}
|
|
|
|
fn move_cursor_on_undo(&self) -> bool {
|
|
true
|
|
}
|
|
|
|
fn clamp_cursor(&self) -> bool {
|
|
true
|
|
}
|
|
|
|
fn hist_scroll_start_pos(&self) -> Option<To> {
|
|
None
|
|
}
|
|
|
|
fn report_mode(&self) -> ModeReport {
|
|
ModeReport::Visual
|
|
}
|
|
}
|
|
|
|
pub fn common_cmds(key: E) -> Option<ViCmd> {
|
|
let mut pending_cmd = ViCmd::new();
|
|
match key {
|
|
E(K::Home, M::NONE) => pending_cmd.set_motion(MotionCmd(1,Motion::BeginningOfLine)),
|
|
E(K::End, M::NONE) => pending_cmd.set_motion(MotionCmd(1,Motion::EndOfLine)),
|
|
E(K::Left, M::NONE) => pending_cmd.set_motion(MotionCmd(1,Motion::BackwardChar)),
|
|
E(K::Right, M::NONE) => pending_cmd.set_motion(MotionCmd(1,Motion::ForwardChar)),
|
|
E(K::Up, M::NONE) => pending_cmd.set_motion(MotionCmd(1,Motion::LineUp)),
|
|
E(K::Down, M::NONE) => pending_cmd.set_motion(MotionCmd(1,Motion::LineDown)),
|
|
E(K::Enter, M::NONE) => pending_cmd.set_verb(VerbCmd(1,Verb::AcceptLineOrNewline)),
|
|
E(K::Char('D'), M::CTRL) => pending_cmd.set_verb(VerbCmd(1,Verb::EndOfFile)),
|
|
E(K::Delete, M::NONE) => {
|
|
pending_cmd.set_verb(VerbCmd(1,Verb::Delete));
|
|
pending_cmd.set_motion(MotionCmd(1, Motion::ForwardChar));
|
|
}
|
|
E(K::Backspace, M::NONE) |
|
|
E(K::Char('H'), M::CTRL) => {
|
|
pending_cmd.set_verb(VerbCmd(1,Verb::Delete));
|
|
pending_cmd.set_motion(MotionCmd(1, Motion::BackwardChar));
|
|
}
|
|
_ => return None
|
|
}
|
|
Some(pending_cmd)
|
|
}
|