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Re: Problem using Split on carriage return [message #10469 is a reply to message #10467]

Tue, 10 July 2007 23:26

mirek
Messages: 14266
Registered: November 2005

Ultimate Member

Well, it is not U++, it is M$... Back in MSDOS days, they have decided that line are to be ended with "\r\n" and this stupid idea is still alive.

Standard C library solves this problem by intruducing "text" and "binary" streams (text streams remove/insert \r on read/write), but IMO that just adds to confusion.

U++ general take on the problem is to ignore all \r characters on input and insert \r before each \n on output - but both is to be handled by the code.

In your case you have many options. One simple is to filter out all \r out before Split:

int NoCr(int c) { return c == '\r' ? 0 : c; }

Split(Filter(s, NoCr), '\n')

As you seem to ignore empty lines, another simple solution (with a bit better performance) is to treat \r like \n (because it will just result in empty line, which is ignored anyway):

int CrOrLf(int c) { return c == '\r' || c == '\n' ? c : 0; }

Split(s, CrOrLf);

Mirek
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