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add Range::{from_node,into_byte_range}

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Skyler Hawthorne 2024-04-07 14:15:29 -04:00 • committed by Michael Davis
parent 07cb24abdd
commit cf9b88f9bd
1 changed files with 16 additions and 1 deletions
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17
helix-core/src/selection.rs
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@ -14,6 +14,7 @@ use crate::{
use helix_stdx::rope::{self, RopeSliceExt}; use helix_stdx::rope::{self, RopeSliceExt};
use smallvec::{smallvec, SmallVec}; use smallvec::{smallvec, SmallVec};
use std::borrow::Cow; use std::borrow::Cow;
use tree_sitter::Node;
/// A single selection range. /// A single selection range.
/// ///
@ -73,6 +74,12 @@ impl Range {
Self::new(head, head) Self::new(head, head)
} }
pub fn from_node(node: Node, text: RopeSlice, direction: Direction) -> Self {
let from = text.byte_to_char(node.start_byte());
let to = text.byte_to_char(node.end_byte());
Range::new(from, to).with_direction(direction)
}
/// Start of the range. /// Start of the range.
#[inline] #[inline]
#[must_use] #[must_use]
@ -376,6 +383,12 @@ impl Range {
let second = graphemes.next(); let second = graphemes.next();
first.is_some() && second.is_none() first.is_some() && second.is_none()
} }
/// Converts this char range into an in order byte range, discarding
/// direction.
pub fn into_byte_range(&self, text: RopeSlice) -> (usize, usize) {
(text.char_to_byte(self.from()), text.char_to_byte(self.to()))
}
} }
impl From<(usize, usize)> for Range { impl From<(usize, usize)> for Range {
@ -783,7 +796,9 @@ pub fn split_on_newline(text: RopeSlice, selection: &Selection) -> Selection {
let mut start = sel_start; let mut start = sel_start;
for line in sel.slice(text).lines() { for line in sel.slice(text).lines() {
let Some(line_ending) = get_line_ending(&line) else { break }; let Some(line_ending) = get_line_ending(&line) else {
break;
};
let line_end = start + line.len_chars(); let line_end = start + line.len_chars();
// TODO: retain range direction // TODO: retain range direction
result.push(Range::new(start, line_end - line_ending.len_chars())); result.push(Range::new(start, line_end - line_ending.len_chars()));