47 function isInAstralSet(code, set) {  argument
51     if (pos > code) return false
53     if (pos >= code) return true
59 export function isIdentifierStart(code, astral) {  argument
60   if (code < 65) return code === 36
61   if (code < 91) return true
62   if (code < 97) return code === 95
63   if (code < 123) return true
64   if (code <= 0xffff) return code >= 0xaa && nonASCIIidentifierStart.test(String.fromCharCode(code))
66   return isInAstralSet(code, astralIdentifierStartCodes)
71 export function isIdentifierChar(code, astral) {  argument
72   if (code < 48) return code === 36
73   if (code < 58) return true
74   if (code < 65) return false
75   if (code < 91) return true
76   if (code < 97) return code === 95
77   if (code < 123) return true
78   if (code <= 0xffff) return code >= 0xaa && nonASCIIidentifier.test(String.fromCharCode(code))
80 …return isInAstralSet(code, astralIdentifierStartCodes) || isInAstralSet(code, astralIdentifierCode…