public String colognePhonetic()

in src/main/java/org/apache/commons/codec/language/ColognePhonetic.java [317:395]
71 lines of code
29 McCabe index (conditional complexity)

    public String colognePhonetic(final String text) {
        if (text == null) {
            return null;
        }

        final CologneInputBuffer input = new CologneInputBuffer(preprocess(text));
        final CologneOutputBuffer output = new CologneOutputBuffer(input.length() * 2);

        char nextChar;

        char lastChar = CHAR_IGNORE;
        char chr;

        while (!input.isEmpty()) {
            chr = input.removeNext();

            if (!input.isEmpty()) {
                nextChar = input.getNextChar();
            } else {
                nextChar = CHAR_IGNORE;
            }

            if (chr < 'A' || chr > 'Z') {
                    continue; // ignore unwanted characters
            }

            if (arrayContains(AEIJOUY, chr)) {
                output.put('0');
            } else if (chr == 'B' || (chr == 'P' && nextChar != 'H')) {
                output.put('1');
            } else if ((chr == 'D' || chr == 'T') && !arrayContains(CSZ, nextChar)) {
                output.put('2');
            } else if (arrayContains(FPVW, chr)) {
                output.put('3');
            } else if (arrayContains(GKQ, chr)) {
                output.put('4');
            } else if (chr == 'X' && !arrayContains(CKQ, lastChar)) {
                output.put('4');
                output.put('8');
            } else if (chr == 'S' || chr == 'Z') {
                output.put('8');
            } else if (chr == 'C') {
                if (output.isEmpty()) {
                    if (arrayContains(AHKLOQRUX, nextChar)) {
                        output.put('4');
                    } else {
                        output.put('8');
                    }
                } else if (arrayContains(SZ, lastChar) || !arrayContains(AHKOQUX, nextChar)) {
                    output.put('8');
                } else {
                    output.put('4');
                }
            } else if (arrayContains(DTX, chr)) {
                output.put('8');
            } else {
                switch (chr) {
                case 'R':
                    output.put('7');
                    break;
                case 'L':
                    output.put('5');
                    break;
                case 'M':
                case 'N':
                    output.put('6');
                    break;
                case 'H':
                    output.put(CHAR_IGNORE); // needed by put
                    break;
                default:
                    break;
                }
            }

            lastChar = chr;
        }
        return output.toString();
    }