String Parsing in C++

[fafy]

Hello everybody, I'm looking for a way for parsing strings.

I' ve something like this:

TOTAL C00 L240 WH00 WPI00 WEI00 WPL00 TDM15359
TEMP49.76 PDIR65535 PREF65535 I28RD65535

TOTAL C08 L230 WH00 WPI00 WEI00 WPL00 TDM15369
TEMP52.21 PDIR65535 PREF65535 I28RD65535

and I need to 'extrapolate' the numeric values in the strings into variables.

For example, I want the bold values in C00 L240 WH00 WPI00 WEI00 WPL00 TDM15359 saved in 3 variables.

How can I manage this problem?
Thx
fafy


I'm thinking to some function/class that make me able to set a pattern 'C..L..TDM...', similarly to the 'textread' function in Matlab

[niskin]

Are you aware that in notepad and in a console program you cannot enter anything in bold? What file format do you intend to use to store the text?

[fafy]

Are you aware that in notepad and in a console program you cannot enter anything in bold?

Of course, it was JUST an example to make you know that I want to 'catch' the bold values, that is, to identify them in a better way inside the string!

What file format do you intend to use to store the text?

There isn't any file, data come from serial port (COM1) and I have only to show the numeric values in several fields in a Window dialog box.

To understand, with this string
TOTAL C00 L240 WH00 WPI00 WEI00 WPL00 TDM15369 TEMP49.76 PDIR65535 PREF65535 I28RD65535

my C, L, TDM, TEMP variables should count 00, 240, 15369 and 49.76 respectively

[RedSon]

Of course, it was JUST an example to make you know that I want to 'catch' the bold values, that is, to identify them in a better way inside the string!


There isn't any file, data come from serial port (COM1) and I have only to show the numeric values in several fields in a Window dialog box.

To understand, with this string
TOTAL C00 L240 WH00 WPI00 WEI00 WPL00 TDM15369 TEMP49.76 PDIR65535 PREF65535 I28RD65535

my C, L, TDM, TEMP variables should count 00, 240, 15369 and 49.76 respectively

So if I understand you, you are getting

TOTAL C00 L240 WH00 WPI00 WEI00 WPL00 TDM15369 TEMP49.76 PDIR65535 PREF65535 I28RD65535

as your exact output. So then all you need is to read a character from the stream one at a time, and check if its a number or not. Once you have identified if the character is a number then you can do whatever you need to do to it.

[weaknessforcats]

Go to the C/C++ Articles forum and read the article on the State design pattern. The example in the article is how to do a string parser. I'd rather not paste the article here.

It appears that a State machine is your answer.