How to Parsing a String

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Hello.
How to parsing a string as str?

C++

stringstream strs;
strs<<"U@1"<<"Vec@(2,4)";
string str = strs.str();
/*
* How to parsing the str ?
*/

Thanks for answering to my question.

Posted 25-Feb-12 0:34am

smss IR

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Richard MacCutchan 25-Feb-12 6:51am

Parsing for what?

smss IR 25-Feb-12 6:59am

for discern parameters.
On String exist many parameters such as Number(Player number on footbal [robocup]),Vector(Vector of target to going that).
I want to discern parameters for doing actions on WrightEagleBASE for robocup soccer simulation ( www.wrighteagle.org/2d ).
for example, if string have "U@1V@(2,4)" then Player Number one , move to Point (2,4)

Richard MacCutchan 25-Feb-12 7:10am

You can use one of the string member functions to find the specific items within the string.

smss IR 25-Feb-12 7:58am

how can?

Richard MacCutchan 25-Feb-12 8:03am

By writing some code. I suggest you follow the link I provided and decide which member functions you need to use to get the results you want.

smss IR 25-Feb-12 8:08am

Your mean of link is wrighteagle.org ?

Ed Nutting 25-Feb-12 8:55am

No he means the link in his comment...The one that takes you to the MSDN page that you need to look at (the one you should have found yourself)...this one:
http://msdn.microsoft.com/en-us/library/xabz5s9c.aspx

smss IR 25-Feb-12 10:01am

i can not understanding that link (http://msdn.microsoft.com/en-us/library/xabz5s9c.aspx)
because I wanna to parse a string and i saw on that link, a specialization & prototype of string.
and i do not see any function for parsing.
Thanks for answering, Please help me to understand how to parsing a string.

Richard MacCutchan 25-Feb-12 10:38am

As I said before, you need to write some code, there is no existing function to parse your strings. Remember that the string you wish to parse is just a stream of characters, and it's up to you to design and write the algorithm that will split it into its constituent parts.

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jk chan · Answer 1 · 2012-02-25T04:36:00

Solution 1

u will get the char* using function string::c_str(), which can be used with sscanf function for easy parsing..

Hopes this helps somewhat..
jkchan
http://cgmath.blogspot.com[^]

Posted 25-Feb-12 4:36am

jk chan

Comments

[no name] 25-Feb-12 17:54pm

But your profile says that you are from the United States. :)

jk chan 26-Feb-12 7:36am

i was lazy.

smss IR 26-Feb-12 8:04am

I quote from my friend :D