in packages/core/nano/src/parser.ts [215:232]
function isWhitespaceChar(ch: number): boolean {
switch (ch) {
case CharacterCodes.space:
case CharacterCodes.tab:
case CharacterCodes.verticalTab:
case CharacterCodes.formFeed:
case CharacterCodes.nonBreakingSpace:
case CharacterCodes.nextLine:
case CharacterCodes.ogham:
case CharacterCodes.narrowNoBreakSpace:
case CharacterCodes.mathematicalSpace:
case CharacterCodes.ideographicSpace:
case CharacterCodes.byteOrderMark:
return true;
default:
return ch >= CharacterCodes.enQuad && ch <= CharacterCodes.zeroWidthSpace;
}
}