static public int keyword()

in src/com/amazon/ion/impl/IonTokenConstsX.java [524:693]

• 170 lines of code
• 86 McCabe index (conditional complexity)

    static public int keyword(CharSequence word, int start_word, int end_word)
    {
        int c = word.charAt(start_word);
        int len = end_word - start_word; // +1 but we build that into the constants below
        switch (c) {
        case '$':
            if (len > 1) {
                for (int i = start_word + 1; i < end_word; i++) {
                    if (! isDigit(word.charAt(i))) return -1;
                }
                return KEYWORD_sid;
            }
            return -1;
        case 'b':
            if (len == 4) {
                if (word.charAt(start_word+1) == 'o'
                 && word.charAt(start_word+2) == 'o'
                 && word.charAt(start_word+3) == 'l'
                ) {
                    return KEYWORD_BOOL;
                }
                if (word.charAt(start_word+1) == 'l'
                 && word.charAt(start_word+2) == 'o'
                 && word.charAt(start_word+3) == 'b'
                ) {
                    return KEYWORD_BLOB;
                }
            }
            return -1;
        case 'c':
            if (len == 4) {
                if (word.charAt(start_word+1) == 'l'
                 && word.charAt(start_word+2) == 'o'
                 && word.charAt(start_word+3) == 'b'
                ) {
                    return KEYWORD_CLOB;
                }
            }
            return -1;
        case 'd':
            if (len == 7) {
                if (word.charAt(start_word+1) == 'e'
                 && word.charAt(start_word+2) == 'c'
                 && word.charAt(start_word+3) == 'i'
                 && word.charAt(start_word+4) == 'm'
                 && word.charAt(start_word+5) == 'a'
                 && word.charAt(start_word+6) == 'l'
                ) {
                    return KEYWORD_DECIMAL;
                }
            }
            return -1;
        case 'f':
            if (len == 5) {
                if (word.charAt(start_word+1) == 'a'
                 && word.charAt(start_word+2) == 'l'
                 && word.charAt(start_word+3) == 's'
                 && word.charAt(start_word+4) == 'e'
                ) {
                    return KEYWORD_FALSE;
                }
                if (word.charAt(start_word+1) == 'l'
                 && word.charAt(start_word+2) == 'o'
                 && word.charAt(start_word+3) == 'a'
                 && word.charAt(start_word+4) == 't'
                ) {
                    return KEYWORD_FLOAT;
                }
            }
            return -1;
        case 'i':
            if (len == 3) {
                if (word.charAt(start_word+1) == 'n') {
                    if (word.charAt(start_word+2) == 't') {
                        return KEYWORD_INT;
                    }
                }
            }
            return -1;
        case 'l':
            if (len == 4) {
                if (word.charAt(start_word+1) == 'i'
                 && word.charAt(start_word+2) == 's'
                 && word.charAt(start_word+3) == 't'
                ) {
                    return KEYWORD_LIST;
                }
            }
            return -1;
        case 'n':
            if (len == 4) {
                if (word.charAt(start_word+1) == 'u'
                 && word.charAt(start_word+2) == 'l'
                 && word.charAt(start_word+3) == 'l'
                ) {
                    return KEYWORD_NULL;
                }
            }
            else if (len == 3) {
                if (word.charAt(start_word+1) == 'a'
                    && word.charAt(start_word+2) == 'n'
                   ) {
                       return KEYWORD_NAN;
                   }
            }
            return -1;
        case 's':
            if (len == 4) {
                if (word.charAt(start_word+1) == 'e'
                 && word.charAt(start_word+2) == 'x'
                 && word.charAt(start_word+3) == 'p'
                ) {
                    return KEYWORD_SEXP;
                }
            }
            else if (len == 6) {
                if (word.charAt(start_word+1) == 't'
                 && word.charAt(start_word+2) == 'r'
                ) {
                    if (word.charAt(start_word+3) == 'i'
                     && word.charAt(start_word+4) == 'n'
                     && word.charAt(start_word+5) == 'g'
                    ) {
                        return KEYWORD_STRING;
                    }
                    if (word.charAt(start_word+3) == 'u'
                     && word.charAt(start_word+4) == 'c'
                     && word.charAt(start_word+5) == 't'
                    ) {
                        return KEYWORD_STRUCT;
                    }
                    return -1;
                }
                if (word.charAt(start_word+1) == 'y'
                 && word.charAt(start_word+2) == 'm'
                 && word.charAt(start_word+3) == 'b'
                 && word.charAt(start_word+4) == 'o'
                 && word.charAt(start_word+5) == 'l'
                ) {
                    return KEYWORD_SYMBOL;
                }
            }
            return -1;
        case 't':
            if (len == 4) {
                if (word.charAt(start_word+1) == 'r'
                 && word.charAt(start_word+2) == 'u'
                 && word.charAt(start_word+3) == 'e'
                ) {
                    return KEYWORD_TRUE;
                }
            }
            else if (len == 9) {
                if (word.charAt(start_word+1) == 'i'
                 && word.charAt(start_word+2) == 'm'
                 && word.charAt(start_word+3) == 'e'
                 && word.charAt(start_word+4) == 's'
                 && word.charAt(start_word+5) == 't'
                 && word.charAt(start_word+6) == 'a'
                 && word.charAt(start_word+7) == 'm'
                 && word.charAt(start_word+8) == 'p'
                ) {
                    return KEYWORD_TIMESTAMP;
                }
            }
            return -1;
        default:
            return -1;
        }
    }