Method contains

src/main/java/org/apache/commons/lang3/CharSet.java:239–243

Tests whether this CharSet contain the specified character ch. Examples using the negation character: CharSet.getInstance("^a-c").contains('a') = false CharSet.getInstance("^a-c").contains('d') = true CharSet.getInstance("^^a-c").contains('a') = true // (on

(final char ch)

     * @return {@code true} if the set contains the characters.
     */
    public boolean contains(final char ch) {
        synchronized (set) {
            return set.stream().anyMatch(range -> range.contains(ch));
        }
    }

    /**
     * Compares two {@link CharSet} objects, returning true if they represent