You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
36 lines
885 B
36 lines
885 B
2 years ago
|
const unicode = require('../lib/unicode')
|
||
|
|
|
||
|
|
module.exports = {
|
||
|
|
isSpaceSeparator (c) {
|
||
|
|
return typeof c === 'string' && unicode.Space_Separator.test(c)
|
||
|
|
},
|
||
|
|
|
||
|
|
isIdStartChar (c) {
|
||
|
|
return typeof c === 'string' && (
|
||
|
|
(c >= 'a' && c <= 'z') ||
|
||
|
|
(c >= 'A' && c <= 'Z') ||
|
||
|
|
(c === '$') || (c === '_') ||
|
||
|
|
unicode.ID_Start.test(c)
|
||
|
|
)
|
||
|
|
},
|
||
|
|
|
||
|
|
isIdContinueChar (c) {
|
||
|
|
return typeof c === 'string' && (
|
||
|
|
(c >= 'a' && c <= 'z') ||
|
||
|
|
(c >= 'A' && c <= 'Z') ||
|
||
|
|
(c >= '0' && c <= '9') ||
|
||
|
|
(c === '$') || (c === '_') ||
|
||
|
|
(c === '\u200C') || (c === '\u200D') ||
|
||
|
|
unicode.ID_Continue.test(c)
|
||
|
|
)
|
||
|
|
},
|
||
|
|
|
||
|
|
isDigit (c) {
|
||
|
|
return typeof c === 'string' && /[0-9]/.test(c)
|
||
|
|
},
|
||
|
|
|
||
|
|
isHexDigit (c) {
|
||
|
|
return typeof c === 'string' && /[0-9A-Fa-f]/.test(c)
|
||
|
|
},
|
||
|
|
}
|