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Update expand_tabs to use bat's ANSI iterator

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Ethan P. 2024-06-10 20:07:54 -07:00
parent b4fe182960
commit 9c76b72825
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GPG key ID: B29B90B1B228FEBC
1 changed files with 12 additions and 7 deletions
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19
src/preprocessor.rs
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@ -1,17 +1,18 @@
use std::fmt::Write; use std::fmt::Write;
use console::AnsiCodeIterator; use crate::{
nonprintable_notation::NonprintableNotation,
use crate::nonprintable_notation::NonprintableNotation; vscreen::{EscapeSequenceOffsets, EscapeSequenceOffsetsIterator},
};
/// Expand tabs like an ANSI-enabled expand(1). /// Expand tabs like an ANSI-enabled expand(1).
pub fn expand_tabs(line: &str, width: usize, cursor: &mut usize) -> String { pub fn expand_tabs(line: &str, width: usize, cursor: &mut usize) -> String {
let mut buffer = String::with_capacity(line.len() * 2); let mut buffer = String::with_capacity(line.len() * 2);
for chunk in AnsiCodeIterator::new(line) { for seq in EscapeSequenceOffsetsIterator::new(line) {
match chunk { match seq {
(text, true) => buffer.push_str(text), EscapeSequenceOffsets::Text { .. } => {
(mut text, false) => { let mut text = &line[seq.index_of_start()..seq.index_past_end()];
while let Some(index) = text.find('\t') { while let Some(index) = text.find('\t') {
// Add previous text. // Add previous text.
if index > 0 { if index > 0 {
@ -31,6 +32,10 @@ pub fn expand_tabs(line: &str, width: usize, cursor: &mut usize) -> String {
*cursor += text.len(); *cursor += text.len();
buffer.push_str(text); buffer.push_str(text);
} }
_ => {
// Copy the ANSI escape sequence.
buffer.push_str(&line[seq.index_of_start()..seq.index_past_end()])
}
} }
} }