parsing string messages in c++

I'm asking for a suggestion regarding the parsing of text messages. I have a list of messages in text format, in the format:

dev1.comm1 param
开发者_JAVA百科
dev1.comm2 param

dev1.comm11 param

dev2.comm1 param

dev3.comm1 param

I need to parse each received line of text and find out the message contained. I did a parser for binary messages with lookup tables, i.e.:

first byte table = 
{

0x01 -> table 0x01,

0x02 -> table 0x01,

0x03 -> message 0x03

}

where 0x01 and 0x02 are the start of messages with length greater than 1, while 0x03 is a message made up of only one byte. If the first byte of the received message is 0x01 I go on comparing the second byte with the content of the table 0x01, while if the first byte is 0x03 I return the id of the message 0x03 and get it in some other function. Obviously I implemented this with structures and pointers, this is just some form of pseudocode.

I would like to have a similar solution for text messages, but the one I outlined above seems not that good to me, also because I have long text messages, and I would end up with too many tables. Is there a cleaner solution, in the case of text messages? A parse tree perhaps?

A parse tree of course.

Perhaps you need to write a FSM for long sentences.