I'd like to find a C++ Perl class I could import ... I am trying to recall the CString functions to do this

Sounds like a sledgehammer to crack a peanut given all you need is: while( p = strchr( s, '-' ) ) *p = '_';

I sympathise with the sentiment of wanting Perl's string handling from C, but the power of Perl's string comes not directly from it's built-in functions -- there's only substr & length of note which are nothing particularly powerful or special -- but more from the regex engine.

Perhaps this is what you are looking for?

there's only substr & length of note which are nothing particularly powerful or special

I'm quite found of the power of concatenation compared on how to do that in C.

A C-String is an array of char's where the last element is a null character ( '\0' ) which evaluates to false in boolean context. Walk the array with a while loop and an index variable that you will increment++, looking for a '-'. When you find a '-', assign that element a '_'. When you reach a '\0', you're done.

size_t i = 0;
while( cstring[i] ) {
    if( cstring[i] == '-' )
        cstring[i] = '_';
    i++;
}
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Or without an index, but with pointer arithmatic...

char * temp = cstring;
while( *temp ) {
    if( *temp == '-' )
        *temp = '_';
    temp++;
}
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You did mention C strings. If you're using the string class, it's a little different.

I guess that when the OP talks about CString he is actually referring to the Windows C++ class CString, not to the C language strings (aka char *)

If it's truly CString, then:

CString sTest("This-has-dashes");
sTest.Replace('-','_');
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mr.nick ...

Well, then he's on his own. ;) I don't know anything about the Windows CString class. :)




Dave

If that rather old version of MS's C++ provided ATL with CStringT accessed using #include <atlstr.h> you can use CStringT::Replace to replace instances of a substring with another substring in a string. This seems not to be available with MFC's CString however.