public int translate()

in src/main/java/org/apache/commons/text/translate/OctalUnescaper.java [58:80]

• 19 lines of code
• 9 McCabe index (conditional complexity)

    public int translate(final CharSequence input, final int index, final Writer writer) throws IOException {
        final int remaining = input.length() - index - 1; // how many characters left, ignoring the first \
        final StringBuilder builder = new StringBuilder();
        if (input.charAt(index) == '\\' && remaining > 0 && isOctalDigit(input.charAt(index + 1))) {
            final int next = index + 1;
            final int next2 = index + 2;
            final int next3 = index + 3;

            // we know this is good as we checked it in the if block above
            builder.append(input.charAt(next));

            if (remaining > 1 && isOctalDigit(input.charAt(next2))) {
                builder.append(input.charAt(next2));
                if (remaining > 2 && isZeroToThree(input.charAt(next)) && isOctalDigit(input.charAt(next3))) {
                    builder.append(input.charAt(next3));
                }
            }

            writer.write(Integer.parseInt(builder.toString(), 8));
            return 1 + builder.length();
        }
        return 0;
    }