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