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-rw-r--r--src/command/client/search/cursor.rs333
1 files changed, 0 insertions, 333 deletions
diff --git a/src/command/client/search/cursor.rs b/src/command/client/search/cursor.rs
deleted file mode 100644
index 2bce4f37..00000000
--- a/src/command/client/search/cursor.rs
+++ /dev/null
@@ -1,333 +0,0 @@
-use atuin_client::settings::WordJumpMode;
-
-pub struct Cursor {
- source: String,
- index: usize,
-}
-
-impl From<String> for Cursor {
- fn from(source: String) -> Self {
- Self { source, index: 0 }
- }
-}
-
-pub struct WordJumper<'a> {
- word_chars: &'a str,
- word_jump_mode: WordJumpMode,
-}
-
-impl WordJumper<'_> {
- fn is_word_boundary(&self, c: char, next_c: char) -> bool {
- (c.is_whitespace() && !next_c.is_whitespace())
- || (!c.is_whitespace() && next_c.is_whitespace())
- || (self.word_chars.contains(c) && !self.word_chars.contains(next_c))
- || (!self.word_chars.contains(c) && self.word_chars.contains(next_c))
- }
-
- fn emacs_get_next_word_pos(&self, source: &str, index: usize) -> usize {
- let index = (index + 1..source.len().saturating_sub(1))
- .find(|&i| self.word_chars.contains(source.chars().nth(i).unwrap()))
- .unwrap_or(source.len());
- (index + 1..source.len().saturating_sub(1))
- .find(|&i| !self.word_chars.contains(source.chars().nth(i).unwrap()))
- .unwrap_or(source.len())
- }
-
- fn emacs_get_prev_word_pos(&self, source: &str, index: usize) -> usize {
- let index = (1..index)
- .rev()
- .find(|&i| self.word_chars.contains(source.chars().nth(i).unwrap()))
- .unwrap_or(0);
- (1..index)
- .rev()
- .find(|&i| !self.word_chars.contains(source.chars().nth(i).unwrap()))
- .map_or(0, |i| i + 1)
- }
-
- fn subl_get_next_word_pos(&self, source: &str, index: usize) -> usize {
- let index = (index..source.len().saturating_sub(1)).find(|&i| {
- self.is_word_boundary(
- source.chars().nth(i).unwrap(),
- source.chars().nth(i + 1).unwrap(),
- )
- });
- if index.is_none() {
- return source.len();
- }
- (index.unwrap() + 1..source.len())
- .find(|&i| !source.chars().nth(i).unwrap().is_whitespace())
- .unwrap_or(source.len())
- }
-
- fn subl_get_prev_word_pos(&self, source: &str, index: usize) -> usize {
- let index = (1..index)
- .rev()
- .find(|&i| !source.chars().nth(i).unwrap().is_whitespace());
- if index.is_none() {
- return 0;
- }
- (1..index.unwrap())
- .rev()
- .find(|&i| {
- self.is_word_boundary(
- source.chars().nth(i - 1).unwrap(),
- source.chars().nth(i).unwrap(),
- )
- })
- .unwrap_or(0)
- }
-
- fn get_next_word_pos(&self, source: &str, index: usize) -> usize {
- match self.word_jump_mode {
- WordJumpMode::Emacs => self.emacs_get_next_word_pos(source, index),
- WordJumpMode::Subl => self.subl_get_next_word_pos(source, index),
- }
- }
-
- fn get_prev_word_pos(&self, source: &str, index: usize) -> usize {
- match self.word_jump_mode {
- WordJumpMode::Emacs => self.emacs_get_prev_word_pos(source, index),
- WordJumpMode::Subl => self.subl_get_prev_word_pos(source, index),
- }
- }
-}
-
-impl Cursor {
- pub fn as_str(&self) -> &str {
- self.source.as_str()
- }
-
- pub fn into_inner(self) -> String {
- self.source
- }
-
- /// Returns the string before the cursor
- pub fn substring(&self) -> &str {
- &self.source[..self.index]
- }
-
- /// Returns the currently selected [`char`]
- pub fn char(&self) -> Option<char> {
- self.source[self.index..].chars().next()
- }
-
- pub fn right(&mut self) {
- if self.index < self.source.len() {
- loop {
- self.index += 1;
- if self.source.is_char_boundary(self.index) {
- break;
- }
- }
- }
- }
-
- pub fn left(&mut self) -> bool {
- if self.index > 0 {
- loop {
- self.index -= 1;
- if self.source.is_char_boundary(self.index) {
- break true;
- }
- }
- } else {
- false
- }
- }
-
- pub fn next_word(&mut self, word_chars: &str, word_jump_mode: WordJumpMode) {
- let word_jumper = WordJumper {
- word_chars,
- word_jump_mode,
- };
- self.index = word_jumper.get_next_word_pos(&self.source, self.index);
- }
-
- pub fn prev_word(&mut self, word_chars: &str, word_jump_mode: WordJumpMode) {
- let word_jumper = WordJumper {
- word_chars,
- word_jump_mode,
- };
- self.index = word_jumper.get_prev_word_pos(&self.source, self.index);
- }
-
- pub fn insert(&mut self, c: char) {
- self.source.insert(self.index, c);
- self.index += c.len_utf8();
- }
-
- pub fn remove(&mut self) -> Option<char> {
- if self.index < self.source.len() {
- Some(self.source.remove(self.index))
- } else {
- None
- }
- }
-
- pub fn remove_next_word(&mut self, word_chars: &str, word_jump_mode: WordJumpMode) {
- let word_jumper = WordJumper {
- word_chars,
- word_jump_mode,
- };
- let next_index = word_jumper.get_next_word_pos(&self.source, self.index);
- self.source.replace_range(self.index..next_index, "");
- }
-
- pub fn remove_prev_word(&mut self, word_chars: &str, word_jump_mode: WordJumpMode) {
- let word_jumper = WordJumper {
- word_chars,
- word_jump_mode,
- };
- let next_index = word_jumper.get_prev_word_pos(&self.source, self.index);
- self.source.replace_range(next_index..self.index, "");
- self.index = next_index;
- }
-
- pub fn back(&mut self) -> Option<char> {
- if self.left() {
- self.remove()
- } else {
- None
- }
- }
-
- pub fn clear(&mut self) {
- self.source.clear();
- self.index = 0;
- }
-
- pub fn end(&mut self) {
- self.index = self.source.len();
- }
-
- pub fn start(&mut self) {
- self.index = 0;
- }
-}
-
-#[cfg(test)]
-mod cursor_tests {
- use super::Cursor;
- use super::*;
-
- static EMACS_WORD_JUMPER: WordJumper = WordJumper {
- word_chars: "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789",
- word_jump_mode: WordJumpMode::Emacs,
- };
-
- static SUBL_WORD_JUMPER: WordJumper = WordJumper {
- word_chars: "./\\()\"'-:,.;<>~!@#$%^&*|+=[]{}`~?",
- word_jump_mode: WordJumpMode::Subl,
- };
-
- #[test]
- fn right() {
- // ö is 2 bytes
- let mut c = Cursor::from(String::from("öaöböcödöeöfö"));
- let indices = [0, 2, 3, 5, 6, 8, 9, 11, 12, 14, 15, 17, 18, 20, 20, 20, 20];
- for i in indices {
- assert_eq!(c.index, i);
- c.right();
- }
- }
-
- #[test]
- fn left() {
- // ö is 2 bytes
- let mut c = Cursor::from(String::from("öaöböcödöeöfö"));
- c.end();
- let indices = [20, 18, 17, 15, 14, 12, 11, 9, 8, 6, 5, 3, 2, 0, 0, 0, 0];
- for i in indices {
- assert_eq!(c.index, i);
- c.left();
- }
- }
-
- #[test]
- fn test_emacs_get_next_word_pos() {
- let s = String::from(" aaa ((()))bbb ((())) ");
- let indices = [(0, 6), (3, 6), (7, 18), (19, 30)];
- for (i_src, i_dest) in indices {
- assert_eq!(EMACS_WORD_JUMPER.get_next_word_pos(&s, i_src), i_dest);
- }
- assert_eq!(EMACS_WORD_JUMPER.get_next_word_pos("", 0), 0);
- }
-
- #[test]
- fn test_emacs_get_prev_word_pos() {
- let s = String::from(" aaa ((()))bbb ((())) ");
- let indices = [(30, 15), (29, 15), (15, 3), (3, 0)];
- for (i_src, i_dest) in indices {
- assert_eq!(EMACS_WORD_JUMPER.get_prev_word_pos(&s, i_src), i_dest);
- }
- assert_eq!(EMACS_WORD_JUMPER.get_prev_word_pos("", 0), 0);
- }
-
- #[test]
- fn test_subl_get_next_word_pos() {
- let s = String::from(" aaa ((()))bbb ((())) ");
- let indices = [(0, 3), (1, 3), (3, 9), (9, 15), (15, 21), (21, 30)];
- for (i_src, i_dest) in indices {
- assert_eq!(SUBL_WORD_JUMPER.get_next_word_pos(&s, i_src), i_dest);
- }
- assert_eq!(SUBL_WORD_JUMPER.get_next_word_pos("", 0), 0);
- }
-
- #[test]
- fn test_subl_get_prev_word_pos() {
- let s = String::from(" aaa ((()))bbb ((())) ");
- let indices = [(30, 21), (21, 15), (15, 9), (9, 3), (3, 0)];
- for (i_src, i_dest) in indices {
- assert_eq!(SUBL_WORD_JUMPER.get_prev_word_pos(&s, i_src), i_dest);
- }
- assert_eq!(SUBL_WORD_JUMPER.get_prev_word_pos("", 0), 0);
- }
-
- #[test]
- fn pop() {
- let mut s = String::from("öaöböcödöeöfö");
- let mut c = Cursor::from(s.clone());
- c.end();
- while !s.is_empty() {
- let c1 = s.pop();
- let c2 = c.back();
- assert_eq!(c1, c2);
- assert_eq!(s.as_str(), c.substring());
- }
- let c1 = s.pop();
- let c2 = c.back();
- assert_eq!(c1, c2);
- }
-
- #[test]
- fn back() {
- let mut c = Cursor::from(String::from("öaöböcödöeöfö"));
- // move to ^
- for _ in 0..4 {
- c.right();
- }
- assert_eq!(c.substring(), "öaöb");
- assert_eq!(c.back(), Some('b'));
- assert_eq!(c.back(), Some('ö'));
- assert_eq!(c.back(), Some('a'));
- assert_eq!(c.back(), Some('ö'));
- assert_eq!(c.back(), None);
- assert_eq!(c.as_str(), "öcödöeöfö");
- }
-
- #[test]
- fn insert() {
- let mut c = Cursor::from(String::from("öaöböcödöeöfö"));
- // move to ^
- for _ in 0..4 {
- c.right();
- }
- assert_eq!(c.substring(), "öaöb");
- c.insert('ö');
- c.insert('g');
- c.insert('ö');
- c.insert('h');
- assert_eq!(c.substring(), "öaöbögöh");
- assert_eq!(c.as_str(), "öaöbögöhöcödöeöfö");
- }
-}
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