Programming Forums > Application Development > C++

Da-Kid · Apr 15th, 2005, 2:55 PM

#include <iostream>
#include <string>

using namespace std;

void wrong()
{
        cout << "That is not a valid keyword\n";
}

int main(int argc, char *argv[])
{
        if(argc>1)
        {
                if(strcmp(argv[1], "Gentoo") == 0)
                {
                    cout << "Gentoo: www.gentoo.org\n";
                    cout << "Gentoo Forum: forums.gentoo.org\n";                                             
                }
                else
                {
                        cout << "That is not a valid keyword\n";
                }
        }
        else
        {
                wrong();
 }
}

This source compiles but I wanted to know how I can make it respond to the keyword 'gentoo' and 'Gentoo'.

kirkl_uk · Apr 15th, 2005, 3:03 PM

Do you mean something like...

if((strcmp(argv[1], "Gentoo") == 0) || (strcmp(argv[1], "gentoo") == 0))
{
...
}

This will check for both strings.

kirkl_uk

peace_of_mind · Apr 15th, 2005, 3:20 PM

Isn't there a way to check for a string, regardless of capitalization? I'll see what I can find for you.

Da-Kid · Apr 15th, 2005, 3:22 PM

Heh, thanks that worked. So I guess I have to do that for every link I'm posting

kirkl_uk · Apr 15th, 2005, 3:30 PM

Regarding what POM said, try strcmpi. This is the same as strcmp, but does not worry about the case of the strings. Therefore, you could just use...

if(strcmpi(argv[1], "gentoo") == 0)
{

}

kirkl_uk

peace_of_mind · Apr 15th, 2005, 3:43 PM

That's it. That should work much better.

Eggbert · Apr 15th, 2005, 10:11 PM

>>try strcmpi.
Be aware that this function is not standard and may not be available. Alternate variations are stricmp and icmpstr, though if your compiler does not support any of them, it is easy to write your own.

(Toggle Plain Text)

int icase_cmp ( const char *s1, const char *s2 )
{
  while ( *s1 == *s2 ) {
    if ( *s1 == '\0' )
      return 0;

    ++s1;
    ++s2;
  }

  return *s1 < *s2 ? -1 : +1;
}

Apr 15th, 2005, 2:55 PM	#1
Da-Kid Programmer Join Date: Nov 2004 Posts: 47 Rep Power: 0	Other Keywords (Toggle Plain Text) #include <iostream> #include <string> using namespace std; void wrong() { cout << "That is not a valid keyword\n"; } int main(int argc, char argv[]) { if(argc>1) { if(strcmp(argv[1], "Gentoo") == 0) { cout << "Gentoo: www.gentoo.org\n"; cout << "Gentoo Forum: forums.gentoo.org\n"; } else { cout << "That is not a valid keyword\n"; } } else { wrong(); } } #include <iostream> #include <string> using namespace std; void wrong() { cout << "That is not a valid keyword\n"; } int main(int argc, char argv[]) { if(argc>1) { if(strcmp(argv[1], "Gentoo") == 0) { cout << "Gentoo: www.gentoo.org\n"; cout << "Gentoo Forum: forums.gentoo.org\n"; } else { cout << "That is not a valid keyword\n"; } } else { wrong(); } } This source compiles but I wanted to know how I can make it respond to the keyword 'gentoo' and 'Gentoo'.

Apr 15th, 2005, 3:03 PM	#2
kirkl_uk Programmer Join Date: Apr 2005 Location: England Posts: 86 Rep Power: 4	Do you mean something like... if((strcmp(argv[1], "Gentoo") == 0) \|\| (strcmp(argv[1], "gentoo") == 0)) { ... } This will check for both strings. kirkl_uk Last edited by kirkl_uk; Apr 15th, 2005 at 3:07 PM.

Apr 15th, 2005, 3:20 PM	#3
peace_of_mind Professional Programmer Join Date: Sep 2004 Location: Hell if I know most of the time Posts: 439 Rep Power: 5	Isn't there a way to check for a string, regardless of capitalization? I'll see what I can find for you. __________________ Amateurs built the ark Professionals built the Titanic

Apr 15th, 2005, 3:30 PM	#5
kirkl_uk Programmer Join Date: Apr 2005 Location: England Posts: 86 Rep Power: 4	Regarding what POM said, try strcmpi. This is the same as strcmp, but does not worry about the case of the strings. Therefore, you could just use... if(strcmpi(argv[1], "gentoo") == 0) { } kirkl_uk Last edited by kirkl_uk; Apr 15th, 2005 at 3:32 PM.

Apr 15th, 2005, 3:43 PM	#6
peace_of_mind Professional Programmer Join Date: Sep 2004 Location: Hell if I know most of the time Posts: 439 Rep Power: 5	That's it. That should work much better. __________________ Amateurs built the ark Professionals built the Titanic

Apr 15th, 2005, 3:22 PM	#4
Da-Kid Programmer Join Date: Nov 2004 Posts: 47 Rep Power: 0	Heh, thanks that worked. So I guess I have to do that for every link I'm posting

Apr 15th, 2005, 10:11 PM	#7
Eggbert Professional Programmer Join Date: Nov 2004 Posts: 250 Rep Power: 5	>>try strcmpi. Be aware that this function is not standard and may not be available. Alternate variations are stricmp and icmpstr, though if your compiler does not support any of them, it is easy to write your own. (Toggle Plain Text) int icase_cmp ( const char s1, const char s2 ) { while ( s1 == s2 ) { if ( s1 == '\0' ) return 0; ++s1; ++s2; } return s1 < s2 ? -1 : +1; } int icase_cmp ( const char s1, const char s2 ) { while ( s1 == s2 ) { if ( s1 == '\0' ) return 0; ++s1; ++s2; } return s1 < s2 ? -1 : +1; }

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Programming Forums > Application Development > C++

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