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Add --strip-ansi=auto option

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When using `auto`, escape sequences will be stripped unless printing
plain text.
This commit is contained in:
Ethan P.
2024-06-10 21:17:28 -07:00
parent 70ff93d238
commit 9e8176b1c6
6 changed files with 107 additions and 18 deletions
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40
src/printer.rs
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@@ -268,26 +268,40 @@ impl<'a> InteractivePrinter<'a> {
.content_type
.map_or(false, |c| c.is_binary() && !config.show_nonprintable);
let highlighter_from_set = if is_printing_binary || !config.colored_output {
None
} else {
// Determine the type of syntax for highlighting
let syntax_in_set =
match assets.get_syntax(config.language, input, &config.syntax_mapping) {
Ok(syntax_in_set) => syntax_in_set,
Err(Error::UndetectedSyntax(_)) => assets
.find_syntax_by_name("Plain Text")?
.expect("A plain text syntax is available"),
Err(e) => return Err(e),
};
let needs_to_match_syntax = !is_printing_binary
&& (config.colored_output || config.strip_ansi == StripAnsiMode::Auto);
Some(HighlighterFromSet::new(syntax_in_set, theme))
let (is_plain_text, highlighter_from_set) = if needs_to_match_syntax {
// Determine the type of syntax for highlighting
const PLAIN_TEXT_SYNTAX: &str = "Plain Text";
match assets.get_syntax(config.language, input, &config.syntax_mapping) {
Ok(syntax_in_set) => (
syntax_in_set.syntax.name == PLAIN_TEXT_SYNTAX,
Some(HighlighterFromSet::new(syntax_in_set, theme)),
),
Err(Error::UndetectedSyntax(_)) => (
true,
Some(
assets
.find_syntax_by_name(PLAIN_TEXT_SYNTAX)?
.map(|s| HighlighterFromSet::new(s, theme))
.expect("A plain text syntax is available"),
),
),
Err(e) => return Err(e),
}
} else {
(false, None)
};
// Determine when to strip ANSI sequences
let strip_ansi = match config.strip_ansi {
_ if config.show_nonprintable => false,
StripAnsiMode::Always => true,
StripAnsiMode::Auto if is_plain_text => false, // Plain text may already contain escape sequences.
StripAnsiMode::Auto => true,
_ => false,
};