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Add unicode/caret replacements for all control characters (#2712)

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This commit is contained in:
einfachIrgendwer0815
2023-10-20 19:41:48 +02:00
committed by GitHub
parent f2f6902279
commit 3d87b25b19
4 changed files with 66 additions and 51 deletions
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46
src/preprocessor.rs
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@@ -91,31 +91,27 @@ pub fn replace_nonprintable(
});
line_idx = 0;
}
// carriage return
'\x0D' => output.push_str(match nonprintable_notation {
NonprintableNotation::Caret => "^M",
NonprintableNotation::Unicode => "␍",
}),
// null
'\x00' => output.push_str(match nonprintable_notation {
NonprintableNotation::Caret => "^@",
NonprintableNotation::Unicode => "␀",
}),
// bell
'\x07' => output.push_str(match nonprintable_notation {
NonprintableNotation::Caret => "^G",
NonprintableNotation::Unicode => "␇",
}),
// backspace
'\x08' => output.push_str(match nonprintable_notation {
NonprintableNotation::Caret => "^H",
NonprintableNotation::Unicode => "␈",
}),
// escape
'\x1B' => output.push_str(match nonprintable_notation {
NonprintableNotation::Caret => "^[",
NonprintableNotation::Unicode => "␛",
}),
// ASCII control characters
'\x00'..='\x1F' => {
let c = u32::from(chr);
match nonprintable_notation {
NonprintableNotation::Caret => {
let caret_character = char::from_u32(0x40 + c).unwrap();
write!(output, "^{caret_character}").ok();
}
NonprintableNotation::Unicode => {
let replacement_symbol = char::from_u32(0x2400 + c).unwrap();
output.push(replacement_symbol)
}
}
}
// delete
'\x7F' => match nonprintable_notation {
NonprintableNotation::Caret => output.push_str("^?"),
NonprintableNotation::Unicode => output.push('\u{2421}'),
},
// printable ASCII
c if c.is_ascii_alphanumeric()
|| c.is_ascii_punctuation()