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Refactor ansi stripping into nu-utils functions (#6966)

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Allows use of slightly optimized variants that check if they have to use
the heavier vte parser. Tries to avoid unnnecessary allocations. Initial
performance characteristics proven out in #4378.

Also reduces boilerplate with right-ward drift.
This commit is contained in:
Stefan Holderbach
2022-11-04 19:49:45 +01:00
committed by GitHub
parent b9195c2668
commit 2c4048eb43
24 changed files with 126 additions and 134 deletions
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7
crates/nu-command/src/core_commands/help.rs
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@ -363,15 +363,12 @@ pub fn highlight_search_string(
}
};
// strip haystack to remove existing ansi style
let stripped_haystack: String = match strip_ansi_escapes::strip(haystack) {
Ok(i) => String::from_utf8(i).unwrap_or_else(|_| String::from(haystack)),
Err(_) => String::from(haystack),
};
let stripped_haystack = nu_utils::strip_ansi_likely(haystack);
let mut last_match_end = 0;
let style = Style::new().fg(White).on(Red);
let mut highlighted = String::new();
for cap in regex.captures_iter(stripped_haystack.as_str()) {
for cap in regex.captures_iter(stripped_haystack.as_ref()) {
match cap {
Ok(capture) => {
let start = match capture.get(0) {