id,value,note
1,Hel​lo,zero-width space inside word
2,​Lead​ing,leading + internal ZWSP
3,Trail​,trailing ZWSP
4,a‌b‍c,ZWNJ and ZWJ
5,‎Marked‏,LTR + RTL marks bracketing
6,co­operate,soft hyphen
7,no⁠break,word joiner
