const unicode = require('../lib/unicode')

module.exports = {

isSpaceSeparator (c) {
    return unicode.Space_Separator.test(c)
},

isIdStartChar (c) {
    return (
        (c >= 'a' && c <= 'z') ||
    (c >= 'A' && c <= 'Z') ||
    (c === '$') || (c === '_') ||
    unicode.ID_Start.test(c)
    )
},

isIdContinueChar (c) {
    return (
        (c >= 'a' && c <= 'z') ||
    (c >= 'A' && c <= 'Z') ||
    (c >= '0' && c <= '9') ||
    (c === '$') || (c === '_') ||
    (c === '\u200C') || (c === '\u200D') ||
    unicode.ID_Continue.test(c)
    )
},

isDigit (c) {
    return /[0-9]/.test(c)
},

isHexDigit (c) {
    return /[0-9A-Fa-f]/.test(c)
},

}