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Search a string of ','

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Search a string for ','

 
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  #1
Mar 9th, 2007
Title should read "search a string for ',' "

Afternoon folks. I visit this site a bit, especially when searching google for help on a particular problem. This is my first post, so let me get right to the point.

I won't go into the gory details of the program, only what I think is relevant. I'm working with date strings which will be read into the program in two formats:

"November 29, 2005"

or

"11 29 2005"


What I am attempting to do, but can't figure out, is set up an if/else control. Here is the psuedocode of what I'm trying:

C++ Syntax (Toggle Plain Text) 
  1. if (string contains a ',')
  2.    //do this
  3.  
  4. else //string contains no ','
  5.   //do this
So basically, I need to search the string for a comma, and if it finds one, process it with the following, else, do something else.

I know this isn't highly technical. I figured psuedocode would accomplish what I'm seeking.

Thanks in advance!

Val
Last edited by Valadair; Mar 9th, 2007 at 6:53 pm. Reason: Title should read "Search a string for ',' "
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Re: Search a string of ','

 
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  #2
Mar 9th, 2007
>I figured psuedocode would accomplish what I'm seeking.
You didn't specify if this is to be in C or C++. In C, look for the strchr function. In C++, look for the find_first_of member function of the string type.
I'm here to prove you wrong.
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Re: Search a string of ','

 
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  #3
Mar 12th, 2007
im not sure what are you looking for, but thats a function that checks string for a char and returns true or false; also it returns position of as a ref parameter.

c Syntax (Toggle Plain Text) 
  1. #include <string.h>
  2. #include <iostream>
  3. using namespace std;
  4.  
  5. bool FindS (string strMain, string strWord, int &pos){
  6.  
  7.       if (strMain.find(strWord) == 'npos'){  //not found
  8.                            return (false);
  9.                            }
  10.       else{                                 //found
  11.            pos = strMain.find(strWord);       //position
  12.              return (true);                        
  13.                          }        
  14. }
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Re: Search a string of ','

 
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  #4
Mar 12th, 2007
Tell me how the function you just posted would help make your code any simpler.

Plus you need to change 'npos' to string::npos if you want to have any chance of making it work.
Last edited by John A; Mar 12th, 2007 at 11:12 pm.
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Re: Search a string of ','

 
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  #5
Mar 13th, 2007
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Originally Posted by Narue View Post
>I figured psuedocode would accomplish what I'm seeking.
You didn't specify if this is to be in C or C++. In C, look for the strchr function. In C++, look for the find_first_of member function of the string type.
I was looking for C++, sorry for not specifying. I did get it to work, and this is what I ended up using:

C++ Syntax (Toggle Plain Text) 
  1. if (dateStr.find(',') != string::npos)

Of course, there is more to the whole idea than that, but that's what I used in the control statement.

Thanks for pointing me in the right direction.

Thanks,
Val
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