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Hi
of a char: char filepath[255];
I should remove the last two words: lin.xpl
it's a path alike: blal/blaald/lin.xpl so I need something like: blal/
blaald/
How should I do that?
Many thanks
Michael

"Mike" <> wrote in message
news:9efc2209-0190-4c7b-8b54-
> Hi
> of a char: char filepath[255];
> I should remove the last two words: lin.xpl
> it's a path alike: blal/blaald/lin.xpl so I need something like:
> blal/ blaald/
> How should I do that?
> Many thanks
> Michael

filepath[12] = 0;

OK, an attempt for a more serious reply.
The first reply was trivial, because of the very vague and contradictionary question.

"Fred Zwarts" <> wrote in message
news:hqph40$fp1$
> "Mike" <> wrote in message
> news:9efc2209-0190-4c7b-8b54-
>> Hi
>> of a char: char filepath[255];
>> I should remove the last two words: lin.xpl

What exactly do you think defines the term "word" here.
Words are normally separated by word separators.
What do you consider a word separator?
Only a '.', as in the example, or also a '-', a '/', a ' ', a '_', etc.?
Are you sure that you always want to remove the last two words?
Even in the case that the string is e.g.
"/ect/bla.conf.original" -> "/etc/bla."
or "/etc/init.d/rc5.d/S10product" -> /etc/init.d/rc."?
or "/usr/local/bin" -> "/usr/".
What if there is a word separator at the end, or if there are two successive word separators as in "/etc/..".

>> it's a path alike: blal/blaald/lin.xpl so I need something like:
>> blal/ blaald/

This suggests that you do not want to remove the last two words,
but everything following the last '/', which is something very different.
(But you do not say so.)
Do you only want to consider the '/', or also the '\' (as it is used in Windows)?

>> How should I do that?

First try to formulate what you want to do exactly.
Then see if you really want to do this with an array of char with a fixed length,
or with the more flexible std::string type, which has methods to find the
first, or the last position of a given set of characters within the string,
to extract substrings, and more string manipulation methods.

>> Many thanks
>> Michael
>
> filepath[12] = 0;

Hi
filepath is a char * which i need for loading sound. Now i need the
full path to the sound for loading. So
remove all after the last / but add sounds/ban.wav.
Something's wrong below.
Many thanks again
Michael


std:: string s = filepath;
std::string t = s.substr(0, s.find_last_of('/') + 1);
char *conv;
conv = new char[t.length() +1];
strcpy(conv, t.c_str());
char str[255] = "sounds/BAN11.wav";
strcat(conv, str);
alutLoadWAVFile((ALbyte*) conv, &format, &data, &size, &freq,
&loop);

"Mike" <> wrote in message
news:00999645-8a24-4246-960b-
> Hi
> filepath is a char * which i need for loading sound. Now i need the
> full path to the sound for loading. So
> remove all after the last / but add sounds/ban.wav.
> Something's wrong below.
> Many thanks again
> Michael
>
>
> std:: string s = filepath;
> std::string t = s.substr(0, s.find_last_of('/') + 1);

A bit dangerous. What happens if there is no '/' in s?
Is an empty t intended?

> char *conv;
> conv = new char[t.length() +1];
> strcpy(conv, t.c_str());
> char str[255] = "sounds/BAN11.wav";
> strcat(conv, str);
> alutLoadWAVFile((ALbyte*) conv, &format, &data, &size, &freq, &loop);

These last 7 lines can be written easier as

t += "sounds/BAN11.wav";
alutLoadWAVFile((ALbyte*) t.c_str (), &format, &data, &size, &freq, &loop);

with the side effect that t has a different value at the end. If that is not what you want:

const string conv = t + "sounds/BAN11.wav";
alutLoadWAVFile((ALbyte*) conv.c_str (), &format, &data, &size, &freq, &loop);

Thanks Stuart. Still something is wrong....VB.NET is so much easier
for strings....
Many thanks again
Michael
------
XPLMGetPluginInfo( XPLMGetMyID(), NULL,filepath, NULL,NULL);
std:: string str = filepath;
std::string::size_type n = str.find_last_of('/');
if(n == std::string::npos) {
str.replace(n,str.length(),"sounds/BAN11.wav");
}
alutLoadWAVFile((ALbyte*) str.c_str (), &format, &data, &size,
&freq, &loop);

On Fri, 2010-04-23, Mike wrote:
> Hi
> filepath is a char * which i need for loading sound. Now i need the
> full path to the sound for loading. So
> remove all after the last / but add sounds/ban.wav.

You seem to be after the function commonly known as dirname.
It exists in the Unix shell, and for example in Python as
os.path.dirname(). Does not exist in C++, but

(a) finding its documentation helps a lot when you designin your own
(b) and yours should probaly be called dirname()
(c) there's probably one in Boost.

/Jorgen

--
// Jorgen Grahn <grahn@ Oo o. . .
\X/ snipabacken.se> O o .