int readEscape()

in src/main/java/org/apache/commons/csv/Lexer.java [485:515]

• 28 lines of code
• 13 McCabe index (conditional complexity)

    int readEscape() throws IOException {
        // the escape char has just been read (normally a backslash)
        final int ch = reader.read();
        switch (ch) {
        case 'r':
            return CR;
        case 'n':
            return LF;
        case 't':
            return TAB;
        case 'b':
            return BACKSPACE;
        case 'f':
            return FF;
        case CR:
        case LF:
        case FF: // TODO is this correct?
        case TAB: // TODO is this correct? Do tabs need to be escaped?
        case BACKSPACE: // TODO is this correct?
            return ch;
        case END_OF_STREAM:
            throw new IOException("EOF whilst processing escape sequence");
        default:
            // Now check for meta-characters
            if (isMetaChar(ch)) {
                return ch;
            }
            // indicate unexpected char - available from in.getLastChar()
            return END_OF_STREAM;
        }
    }