27 lines
653 B
Rust
27 lines
653 B
Rust
use unicode_xid::UnicodeXID;
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pub fn is_ident_start(c: char) -> bool {
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(c >= 'a' && c <= 'z')
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|| (c >= 'A' && c <= 'Z')
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|| c == '_'
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|| (c > '\x7f' && UnicodeXID::is_xid_start(c))
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}
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pub fn is_ident_continue(c: char) -> bool {
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(c >= 'a' && c <= 'z')
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|| (c >= 'A' && c <= 'Z')
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|| (c >= '0' && c <= '9')
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|| c == '_'
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|| (c > '\x7f' && UnicodeXID::is_xid_continue(c))
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}
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pub fn is_whitespace(c: char) -> bool {
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//FIXME: use is_pattern_whitespace
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//https://github.com/behnam/rust-unic/issues/192
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c.is_whitespace()
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}
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pub fn is_dec_digit(c: char) -> bool {
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'0' <= c && c <= '9'
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}
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