java - Why does the regex \pL+\pM+ not work with English? -


why regex \pl+\pm+ not work english?

why below first example results false wherein second 1 results true? 

system.out.println(charset.forname("utf-8").encode("suren")                  .ascharbuffer().tostring().matches("\\pl+\\pm+"));  system.out.println(charset.forname("utf-8").encode("स्वागत")                  .ascharbuffer().tostring().matches("\\pl+\\pm+"));

basically need regular expression restrict unicode characters(any language in world) in string.

you want

"^[\\p{letter&}\\p{mark}]+$"

your regex requires mark (\pm+), whereas want allow it. note anchors.

on general note: i'd recommend use long forms of unicode character properties. makes expression more readable.


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