public void lex()

in server/pxf-json/src/main/java/org/greenplum/pxf/plugins/json/parser/JsonLexer.java [103:174]

61 lines of code
24 McCabe index (conditional complexity)


	public void lex(char c) {
		switch (state) {
		case NULL:
		case BEGIN_OBJECT:
		case END_OBJECT:
		case BEGIN_ARRAY:
		case END_ARRAY:
		case END_STRING:
		case VALUE_SEPARATOR:
		case NAME_SEPARATOR:
		case DONT_CARE:
		case WHITESPACE: {
			if (Character.isWhitespace(c)) {
				state = JsonLexerState.WHITESPACE;
				break;
			}
			switch (c) {
			// value-separator (comma)
			case ',':
				state = JsonLexerState.VALUE_SEPARATOR;
				break;
			// name-separator (colon)
			case ':':
				state = JsonLexerState.NAME_SEPARATOR;
				break;
			// string
			case '"':
				state = JsonLexerState.BEGIN_STRING;
				break;
			// start-object
			case '{':
				state = JsonLexerState.BEGIN_OBJECT;
				break;
			// end-object
			case '}':
				state = JsonLexerState.END_OBJECT;
				break;
			// begin-array
			case '[':
				state = JsonLexerState.BEGIN_ARRAY;
				break;
			// end-array
			case ']':
				state = JsonLexerState.END_ARRAY;
				break;
			default:
				state = JsonLexerState.DONT_CARE;
			}
			break;
		}
		case BEGIN_STRING:
		case INSIDE_STRING: {
			state = JsonLexerState.INSIDE_STRING;
			// we will now enter the STRING state below

			switch (c) {
			// end-string
			case '"':
				state = JsonLexerState.END_STRING;
				break;
			// escape
			case '\\':
				state = JsonLexerState.STRING_ESCAPE;
			}
			break;
		}
		case STRING_ESCAPE: {
			state = JsonLexerState.INSIDE_STRING;
			break;
		}
		}
	}