namespace pxt.py.rx {

const nonASCIIwhitespace = /[\u1680\u2000-\u200a\u202f\u205f\u3000\ufeff]/;

export function isIdentifierStart(code: number) {

return ts.pxtc.isIdentifierStart(code, ts.pxtc.ScriptTarget.ES5);

}

export function isIdentifierChar(code: number) {

return ts.pxtc.isIdentifierPart(code, ts.pxtc.ScriptTarget.ES5);

}

export function isSpace(ch: number) {

if (ch === 32 || // ' '

ch === 9 || ch === 11 || ch === 12 || // TODO check this with CPython

ch === 160 || // '\xa0'

ch >= 0x1680 && nonASCIIwhitespace.test(String.fromCharCode(ch))) {

return true;

}

return false;

}

export function isNewline(ch: number) {

if (ch === 10 || ch === 13)

return true;

// Python ref doesn't really say LINE SEPARATOR and PARAGRAPH SEPARATOR

// are line seperators, but how else should we treat them?

if (ch === 0x2028 || ch === 0x2029)

return true;

return false;

}

}