Programming Forums > Application Development > C++

HackeZ · Dec 29th, 2005, 6:17 AM

Hey I was just fooling around off work, and I was having some problems splitting some char's i declared into tokens, I tried memset(); with no prevail. Any idea how I might fix this silly mistake. No big deal if you cant help just foolen around and learning.

Btw by tokens incase some are wondering im referring to say a string like "This is a string" split into Token[0] = This, Token[1] = is, Token[2] = a, ... etc.

Polyphemus_ · Dec 29th, 2005, 6:24 AM

Google for strtok. It doesn't create an array of tokens for you, it helps you looping through a string.

para · Dec 29th, 2005, 11:11 AM

http://www.programmingforums.org/for...1&postcount=11

Scan through your string replacing the delimiter (a space in your case) with a NULL. Save the address to the beginning of each of these in an array.

Master · Dec 29th, 2005, 12:14 PM

you could try my method,not the best way, but it works

(Toggle Plain Text)

void split(string &input, vector<string> &str, char delim[])
{
     while(input.length() > 0)
     {
        if(input.find(delim,0) != string::npos)
        {
            str.push_back(input.substr(0,input.find(delim,0)));
            input.erase(0,input.find(delim,0)+1);
            
        }
        else
        {
            str.push_back(input);
            break;
        }
     }
}

nnxion · Dec 30th, 2005, 4:31 PM

Master your function is not bad at all. And nice C++ instead of strtok or raw pointers from C.

Jerkstore · Dec 30th, 2005, 6:57 PM

I like that Master
I would have just done a for loop from 0 to input length and sub-stringed each character to a tempString...if char is a space then push_back on vector and reset the tempString = ""

Dec 29th, 2005, 6:17 AM	#1
HackeZ Programmer Join Date: Dec 2004 Location: Ontario, Canada. Posts: 38 Rep Power: 0	*Splitting Char into Tokens.** Hey I was just fooling around off work, and I was having some problems splitting some char's i declared into tokens, I tried memset(); with no prevail. Any idea how I might fix this silly mistake. No big deal if you cant help just foolen around and learning. Btw by tokens incase some are wondering im referring to say a string like "This is a string" split into Token[0] = This, Token[1] = is, Token[2] = a, ... etc.

Dec 29th, 2005, 12:14 PM	#4
Master Programmer Join Date: Sep 2005 Location: GA Posts: 99 Rep Power: 4	you could try my method,not the best way, but it works (Toggle Plain Text) void split(string &input, vector<string> &str, char delim[]) { while(input.length() > 0) { if(input.find(delim,0) != string::npos) { str.push_back(input.substr(0,input.find(delim,0))); input.erase(0,input.find(delim,0)+1); } else { str.push_back(input); break; } } } void split(string &input, vector<string> &str, char delim[]) { while(input.length() > 0) { if(input.find(delim,0) != string::npos) { str.push_back(input.substr(0,input.find(delim,0))); input.erase(0,input.find(delim,0)+1); } else { str.push_back(input); break; } } }

Dec 30th, 2005, 4:31 PM	#5
nnxion Programming Guru Join Date: Jun 2005 Location: elemental plane Posts: 1,429 Rep Power: 5	Master your function is not bad at all. And nice C++ instead of strtok or raw pointers from C. __________________ "Employ your time in improving yourself by other men's writings, so that you shall gain easily what others have labored hard for." -- Socrates

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Dec 29th, 2005, 6:24 AM	#2
Polyphemus_ Expert Programmer Join Date: Aug 2005 Location: Rotterdam, the Netherlands Posts: 942 Rep Power: 4	Google for strtok. It doesn't create an array of tokens for you, it helps you looping through a string.

Dec 29th, 2005, 11:11 AM	#3
para Programmer Join Date: Dec 2005 Posts: 65 Rep Power: 3	http://www.programmingforums.org/for...1&postcount=11 Scan through your string replacing the delimiter (a space in your case) with a NULL. Save the address to the beginning of each of these in an array.

Dec 30th, 2005, 6:57 PM	#6
Jerkstore Newbie Join Date: Dec 2005 Posts: 12 Rep Power: 0	I like that Master I would have just done a for loop from 0 to input length and sub-stringed each character to a tempString...if char is a space then push_back on vector and reset the tempString = ""

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Programming Forums > Application Development > C++

Splitting Char * into Tokens.