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feat(std.ascii): add isGraphical and isPunctuation

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GasInfinity 2026-01-09 02:27:31 +01:00
parent 7f6eab2704
commit e558e64ca0
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1 changed files with 21 additions and 0 deletions
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lib/std/ascii.zig
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@ -137,6 +137,16 @@ pub fn isPrint(c: u8) bool {
return isAscii(c) and !isControl(c);
}
/// Returns whether the character has some graphical representation,
pub fn isGraphical(c: u8) bool {
return isPrint(c) and c != ' ';
}
/// Returns whether the character is a punctuation character.
pub fn isPunctuation(c: u8) bool {
return isGraphical(c) and !isAlphanumeric(c);
}
/// Returns whether this character is included in `whitespace`.
pub fn isWhitespace(c: u8) bool {
return switch (c) {
@ -264,6 +274,17 @@ test "ASCII character classes" {
try testing.expect(!isPrint(control_code.esc));
try testing.expect(!isPrint(0x80));
try testing.expect(!isPrint(0xff));
try testing.expect(isGraphical('@'));
try testing.expect(isGraphical('!'));
try testing.expect(!isGraphical(' '));
try testing.expect(isPunctuation('@'));
try testing.expect(isPunctuation('!'));
try testing.expect(isPunctuation(';'));
try testing.expect(isPunctuation(','));
try testing.expect(!isPunctuation('A'));
try testing.expect(!isPunctuation('8'));
}
/// Writes a lower case copy of `ascii_string` to `output`.