public String encode()

in src/main/java/org/apache/commons/codec/language/Caverphone1.java [44:124]

• 63 lines of code
• 3 McCabe index (conditional complexity)

    public String encode(final String source) {
        String txt = source;
        if (txt == null || txt.isEmpty()) {
            return SIX_1;
        }

        // 1. Convert to lowercase
        txt = txt.toLowerCase(java.util.Locale.ENGLISH);

        // 2. Remove anything not A-Z
        txt = txt.replaceAll("[^a-z]", "");

        // 3. Handle various start options
        // 2 is a temporary placeholder to indicate a consonant which we are no longer interested in.
        txt = txt.replaceAll("^cough", "cou2f");
        txt = txt.replaceAll("^rough", "rou2f");
        txt = txt.replaceAll("^tough", "tou2f");
        txt = txt.replaceAll("^enough", "enou2f");
        txt = txt.replaceAll("^gn", "2n");

        // End
        txt = txt.replaceAll("mb$", "m2");

        // 4. Handle replacements
        txt = txt.replace("cq", "2q");
        txt = txt.replace("ci", "si");
        txt = txt.replace("ce", "se");
        txt = txt.replace("cy", "sy");
        txt = txt.replace("tch", "2ch");
        txt = txt.replace("c", "k");
        txt = txt.replace("q", "k");
        txt = txt.replace("x", "k");
        txt = txt.replace("v", "f");
        txt = txt.replace("dg", "2g");
        txt = txt.replace("tio", "sio");
        txt = txt.replace("tia", "sia");
        txt = txt.replace("d", "t");
        txt = txt.replace("ph", "fh");
        txt = txt.replace("b", "p");
        txt = txt.replace("sh", "s2");
        txt = txt.replace("z", "s");
        txt = txt.replaceAll("^[aeiou]", "A");
        // 3 is a temporary placeholder marking a vowel
        txt = txt.replaceAll("[aeiou]", "3");
        txt = txt.replace("3gh3", "3kh3");
        txt = txt.replace("gh", "22");
        txt = txt.replace("g", "k");
        txt = txt.replaceAll("s+", "S");
        txt = txt.replaceAll("t+", "T");
        txt = txt.replaceAll("p+", "P");
        txt = txt.replaceAll("k+", "K");
        txt = txt.replaceAll("f+", "F");
        txt = txt.replaceAll("m+", "M");
        txt = txt.replaceAll("n+", "N");
        txt = txt.replace("w3", "W3");
        txt = txt.replace("wy", "Wy"); // 1.0 only
        txt = txt.replace("wh3", "Wh3");
        txt = txt.replace("why", "Why"); // 1.0 only
        txt = txt.replace("w", "2");
        txt = txt.replaceAll("^h", "A");
        txt = txt.replace("h", "2");
        txt = txt.replace("r3", "R3");
        txt = txt.replace("ry", "Ry"); // 1.0 only
        txt = txt.replace("r", "2");
        txt = txt.replace("l3", "L3");
        txt = txt.replace("ly", "Ly"); // 1.0 only
        txt = txt.replace("l", "2");
        txt = txt.replace("j", "y"); // 1.0 only
        txt = txt.replace("y3", "Y3"); // 1.0 only
        txt = txt.replace("y", "2"); // 1.0 only

        // 5. Handle removals
        txt = txt.replace("2", "");
        txt = txt.replace("3", "");

        // 6. put six 1s on the end
        txt = txt + SIX_1;

        // 7. take the first six characters as the code
        return txt.substring(0, SIX_1.length());
    }