parsing text with ply (lex/yacc) tool

[bb8]

i need to parse a file which contains some kind of data. i've looked at tutorials but i'm a little bit confused how to apply it to my case.

so the file is going to contain something like this (i'm putting the types of the data):

string number
string
number number number date/time
string
char number number
number number
number number
number number
number number
string
# comment
...

these are the values. each mean something. but as you can see i don't have key-value pairs here. that is why i'm confused how to do it all.

please help!

[nilamo]

If the only keys you have for the values are which line they're on, then you probably can't use a tool. You'll need to open the file, and process it line-by-line into whatever format you want.

[bb8]

the file consists of, say 1000 such records that have the same structure as above. what about that? can i give a structure as a rule?