Name

filterchars — Filters characters out of a String

Synopsis

string filterchars ( string  STRING ,
  string  CHARS );

Parameters

string STRING

string CHARS

chars to be included

Return

string

Description

Returns a string that results from string STRING by removing all characters that do not occur in CHARS.

Usage

  filterchars ("a", "abcdefghijklmnopqrstuvwxyz") -> "ac"
  filterchars ("abc","cde") -> "c"