diff --git a/helix-term/src/commands.rs b/helix-term/src/commands.rs index aed709f30..fb8d6956e 100644 --- a/helix-term/src/commands.rs +++ b/helix-term/src/commands.rs @@ -6160,43 +6160,28 @@ fn jump_to_label(cx: &mut Context, labels: Vec, behaviour: Movement) { let alphabet = &cx.editor.config().jump_label_alphabet; let follow_blacklist = &cx.editor.config().jump_label_follow_blacklist; let jump_label_lookup = follow_blacklist.get_allow_list(alphabet); - let partial_sums = jump_label_lookup - .alphabet - .iter() - .map(|c| jump_label_lookup.follow_whitelist.get(c).unwrap()) - .map(|v| v.len()) - .fold(vec![0], |mut acc, curr| { - acc.push(acc.last().unwrap() + curr); - acc - }); + let mut used_first_chars = vec![]; - let make_jump_label = |i| { - // finding, based on the total number of overlays generated so far, what the index into the - // first characters and second characters respectively should be. - let first_i = partial_sums.iter().take_while(|p| p <= &&i).count() - 1; - - let second_i = i - partial_sums - .get(first_i) - .unwrap_or_else(|| panic!("first_i outside of partial_sums indices.")); - - let first = *jump_label_lookup.alphabet.get(first_i).unwrap_or_else(|| { - panic!( - "alphabet_char called with i ({}) greater than the number of valid pairs ({}).", - i, - partial_sums.last().unwrap() - ) - }); - - let second = jump_label_lookup.follow_whitelist.get(&first) + let mut make_jump_label = |i| { + let (first_ch, second_ch) = + jump_label_lookup + .allowed_jump_labels + .get(i) .unwrap_or_else(|| { - panic!("there should not be any first chars created which don't have entries in follow_whitelist.") - })[second_i]; + panic!( + "{} is outside the bounds of allowed_jump_labels ({})", + i, + jump_label_lookup.allowed_jump_labels.len() + ) + }); + + used_first_chars.push(*first_ch); let mut first_res = Tendril::new(); let mut second_res = Tendril::new(); - first_res.push(first); - second_res.push(second); + first_res.push(*first_ch); + second_res.push(*second_ch); (first_res, second_res) }; @@ -6228,36 +6213,28 @@ fn jump_to_label(cx: &mut Context, labels: Vec, behaviour: Movement) { let view = view.id; let doc = doc.id(); cx.on_next_key(move |cx, event| { - let Some((first_ch, i)) = event.char().and_then(|ch| { - jump_label_lookup - .alphabet - .iter() - .position(|&it| it == ch) - .map(|i| (ch, i)) - }) else { + let Some(first_ch) = event.char() else { doc_mut!(cx.editor, &doc).remove_jump_labels(view); return; }; - let outer = partial_sums[i]; // Bail if the given character cannot be a jump label. - if outer > labels.len() { + if !used_first_chars.contains(&first_ch) { doc_mut!(cx.editor, &doc).remove_jump_labels(view); return; } + cx.on_next_key(move |cx, event| { doc_mut!(cx.editor, &doc).remove_jump_labels(view); - let Some(inner) = event.char().and_then(|ch| { + let Some(index) = event.char().and_then(|ch| { jump_label_lookup - .follow_whitelist - .get(&first_ch) - .unwrap_or(&vec![]) + .allowed_jump_labels .iter() - .position(|&it| it == ch) + .position(|&it| it == (first_ch, ch)) }) else { return; }; - if let Some(mut range) = labels.get(outer + inner).copied() { + if let Some(mut range) = labels.get(index).copied() { range = if behaviour == Movement::Extend { let anchor = if range.anchor < range.head { let from = primary_selection.from(); @@ -6290,11 +6267,8 @@ fn jump_to_word(cx: &mut Context, behaviour: Movement) { let alphabet = &cx.editor.config().jump_label_alphabet; let follow_blacklist = &cx.editor.config().jump_label_follow_blacklist; let jump_label_lookup = follow_blacklist.get_allow_list(alphabet); - let jump_label_limit = jump_label_lookup - .follow_whitelist - .values() - .map(|v| v.len()) - .sum(); + let jump_label_limit = jump_label_lookup.allowed_jump_labels.len(); + let mut words = Vec::with_capacity(jump_label_limit); let (view, doc) = current_ref!(cx.editor); let text = doc.text().slice(..); diff --git a/helix-view/src/editor.rs b/helix-view/src/editor.rs index 7085d40ef..383c3237a 100644 --- a/helix-view/src/editor.rs +++ b/helix-view/src/editor.rs @@ -21,7 +21,7 @@ use tokio_stream::wrappers::UnboundedReceiverStream; use std::{ - borrow::{Borrow, Cow}, + borrow::Cow, cell::Cell, collections::{BTreeMap, HashMap, HashSet}, fs, @@ -354,8 +354,8 @@ pub struct Config { #[derive(Debug, Clone, PartialEq, Eq)] pub struct JumpLabelLookup { - pub alphabet: Vec, - pub follow_whitelist: HashMap>, + pub start_alphabet: Vec, + pub allowed_jump_labels: Vec<(char, char)>, } impl JumpLabelFollowBlacklist { @@ -364,44 +364,32 @@ pub fn get(&self, c: char) -> Option<&Vec> { } pub fn get_allow_list(&self, alphabet: &Vec) -> JumpLabelLookup { - let follow_whitelist: HashMap<_, _> = alphabet - .iter() - .filter_map(|c| { - let unique_chars: HashSet<_> = alphabet.iter().copied().collect(); - let blacklist_chars: Option> = - self.get(*c).and_then(|v| Some(v.iter().copied().collect())); + let mut start_alphabet = vec![]; + + let allowed_jump_labels: Vec<_> = alphabet + .iter() + .flat_map(|first_c| { + let unique_chars: HashSet<_> = alphabet.iter().copied().collect(); + let blacklist_chars: Option> = self + .get(*first_c) + .and_then(|v| Some(v.iter().copied().collect())); + + if let Some(blacklist_chars) = blacklist_chars { + start_alphabet.push(*first_c); - let whitelist_chars = if let Some(blacklist_chars) = blacklist_chars { unique_chars .symmetric_difference(&blacklist_chars) - .map(|c| *c) - .collect() + .map(|c| (*first_c, *c)) + .collect::>() } else { - alphabet.clone() - }; - - if whitelist_chars.len() > 0 { - Some((*c, whitelist_chars)) - } else { - None - } - }) - .collect(); - - let alphabet = alphabet - .iter() - .filter_map(|c| { - if follow_whitelist.contains_key(c) { - Some(*c) - } else { - None + alphabet.iter().map(|c| (*first_c, *c)).collect() } }) .collect(); JumpLabelLookup { - alphabet, - follow_whitelist, + start_alphabet, + allowed_jump_labels, } } }