fgets and newline

[Mike Mimic]

Hi!

Is there a way to "say" to fgets to use any of \n, \r, \r\n end line
markers as line separators?

Is there some other library function which would read line by line (end
line markers do not need to be included).


Mike

 

[Jacques Labuschagne]

Hi!

Is there a way to "say" to fgets to use any of \n, \r, \r\n end line
markers as line separators?

Is there some other library function which would read line by line (end
line markers do not need to be included).


Mike

std::getline?


Jacques.

 

[Mike Mimic]

Hi!

std::getline?

I missed that.

But if line is terminated with \r\n that I will have to call getline
twice for every line as I will get empty line after \r.

And how can I convert file descriptor to a C++ stream (as fdopen)?


Mike

 

[Jacques Labuschagne]

I missed that.

But if line is terminated with \r\n that I will have to call getline
twice for every line as I will get empty line after \r.

Not if you use \n as your delimiter and just erase the \r by hand.
Something like:

getline(myfile, mystring, '\n');
if (*mystring.rbegin() == '\r'){
*mystring.rbegin() = ' ';
// or you could actually call mystring.erase()
}

And how can I convert file descriptor to a C++ stream (as fdopen)?

fdopen() is not part of standard C or C++. If you're doing platform
specific stuff you may need to write your own getline() equivalent.


Jacques

 

[John Harrison]

Hi!

Is there a way to "say" to fgets to use any of \n, \r, \r\n end line
markers as line separators?

No, write your own function to do this. Simple enough I think.

Is there some other library function which would read line by line (end
line markers do not need to be included).

std::getline, but again doesn't do the processing on end of lines you
require.

john