How a c string can be splitted by token '\' using strtok?

[Man4ish]

How a c string can be splitted by token '\' using strtok?
Example:
Hello\world is one c-string. I need to split it into Hello and world. How this can be implemented? Thanks in advance.

[Dheeraj Joshi]

Probably this link may help you.....

STRTOK Link

Regards
Dheeraj Joshi

[Man4ish]

I know abt this but it does not split it '\' strtok. Even i cannot compile it.

[Dheeraj Joshi]

The link was given for your reference not to copy the code from the that page.

Regards
Dheeraj Joshi

[whodgson]

strtok(s1,s2) returns the next token in s1 using the delimiters specified in s2.
The above link explains this in more detail.
Presumably in your example the' \' is the delimiter.

[Man4ish]

Following is the error when "\" is used as delemiter for the example given by dhiraj.
check.cpp:8:21: warning: missing terminating " character
check.cpp:8: error: missing terminating " character
check.cpp: In function ‘int main()’:
check.cpp:9: error: expected primary-expression before ‘char’
check.cpp:9: error: expected ‘,’ or ‘;’ before ‘char’
check.cpp:10: error: ‘result’ was not declared in this scope

#include <iostream>
#include <string.h>
using namespace std;
 
int main()
{
    char str[] = "now # is the time for all # good men to come to the # aid of their country";
    char delims[] = "\";             //// error because of this
    char *result = NULL;
    result = strtok( str, delims );
    while( result != NULL ) {
    printf( "result is \"%s\"\n", result );
    result = strtok( NULL, delims );
    }
    return 0;
}
 

~

[newb16]

You need to escape backslash in character string with backslash like you do it with quote five lines below.

[whodgson]

newb16 is, I think, pointing out that there is a clash between the delimiters in the string ("#") and the 'char delims []' declaration ("/")

char *p=strtok(str," / "); /*This call is required to 
identify the string you want to analyze as the s1 argument.                                                                                                                          
Now loop to analyze the string and print out the tokens
 (words)*/
while (p){
      cout<<p<<'\n'; 
     p= strtok(NULL,"/ ");
} 

I haven't compiled or debugged this but this is my understanding of how the function works.

[Tassos Souris]

going back to the theory every one using C should know, the '\' character is used to excape other characters giving them special meaning.
for example:
'\n' means the new line character
'\t' the tab character
and so on....

since the '\' has a special meaning for C you must escape it to have the character '\'.
So if you need:

char delims[] = "\\";
 

[whodgson]

@Tassos Souris
What you say is generally true but not so in this case as s2 is any delimiter's place holder as part of the strtok() function

[Markus]

@whodgson
You have misread the OP's question: he wants to use the backslash (\) as a delimiter. However, in C, the backslash is an escape character. Ergo, the line char delims[] = "\"; causes an error because the backslash is escaping the closing quote. Tassos' solution would work.