pTakeWhile
Returns a Parser that consumes zero or more characters satisfying predicate, collecting them into a String. Always succeeds; returns an empty string when predicate is false for the first character or the input is exhausted.
Equivalent to pMap(pMany(pSatisfy(predicate))) { it.joinToString("") }.
Return
a Parser that always succeeds with the matched substring.
Parameters
predicate
the test applied to each character; consumption stops on the first character for which it returns false.