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Remove code that tries to handle ANSI escape inputs (#2189)

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Syntax highlighting is broken when input contains ANSI escape characters
anyway, so there is not much point in trying to handle ANSI escapes in
input.
This commit is contained in:
Martin Nordholts
2022-08-29 18:49:29 +02:00
committed by GitHub
parent a6297b282c
commit 899fdbb347
6 changed files with 114 additions and 390 deletions
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45
src/preprocessor.rs
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@@ -1,35 +1,26 @@
use console::AnsiCodeIterator;
/// Expand tabs like an ANSI-enabled expand(1).
pub fn expand_tabs(line: &str, width: usize, cursor: &mut usize) -> String {
let mut buffer = String::with_capacity(line.len() * 2);
pub fn expand_tabs(mut text: &str, width: usize, cursor: &mut usize) -> String {
let mut buffer = String::with_capacity(text.len() * 2);
for chunk in AnsiCodeIterator::new(line) {
match chunk {
(text, true) => buffer.push_str(text),
(mut text, false) => {
while let Some(index) = text.find('\t') {
// Add previous text.
if index > 0 {
*cursor += index;
buffer.push_str(&text[0..index]);
}
// Add tab.
let spaces = width - (*cursor % width);
*cursor += spaces;
buffer.push_str(&*" ".repeat(spaces));
// Next.
text = &text[index + 1..text.len()];
}
*cursor += text.len();
buffer.push_str(text);
}
while let Some(index) = text.find('\t') {
// Add previous text.
if index > 0 {
*cursor += index;
buffer.push_str(&text[0..index]);
}
// Add tab.
let spaces = width - (*cursor % width);
*cursor += spaces;
buffer.push_str(&*" ".repeat(spaces));
// Next.
text = &text[index + 1..text.len()];
}
*cursor += text.len();
buffer.push_str(text);
buffer
}