Method getNextToken

src/main/java/org/ttn/lexan/Scanner.java:80–97

(Predicate<Character> tokenInclusionPredicate)

    }

    private String getNextToken(Predicate<Character> tokenInclusionPredicate) {

        StringBuilder result = new StringBuilder();

        while (index < statement.length()) {

            char currentChar = statement.charAt(index);

            if (tokenInclusionPredicate.test(currentChar)) {
                result.append(currentChar);
                index++;
            } else {
                break;
            }
        }

        return result.toString();
    }

    private boolean isNextToken(String token) {
        int tokenIndex = 0;