std.stdio.write, writeln, fwrite, fwriteln

[Sean Kelly]

Lionello Lunesu wrote:
> "Andrei Alexandrescu (See Website For Email)" 
> <SeeWebsiteForEmail at erdani.org> wrote in message 
> news:45941A78.50908 at erdani.org...
>> Lionello Lunesu wrote:
>>> This is for the cout lovers out there:
>>>
>>> I like writefln, but many times it's doing too much. I often forget to 
>>> print
>>> strings explicitly using "%s", to prevent errors in the (rare) case the
>>> string contains %-characters. That's why I've added write, writeln, 
>>> fwrite,
>>> fwriteln to std\stdio.d
>> How about the converse read* functions?
> 
> I didn't know they existed? Ah wait, they don't! I see, std.stdio is 
> actually only std-output : )

Yup, they don't exist, though std.stream does have read functions.  As 
an alternative, I've put a copy of the readf/unFormat routines I wrote 
ages ago online here:

http://www.invisibleduck.org/~sean/code/stdio.d
http://www.invisibleduck.org/~sean/code/unformat.d
http://www.invisibleduck.org/~sean/code/utf.d

They convert everything to dchar internally during processing and this 
may not be a terribly optimal decision (though given my limited 
understanding of Unicode at the time it seemed the most prudent 
approach), but the code may be useful regardless, as it's a complete 
implementation of the C99 scanf function with some additions for D.  The 
utf changes are necessary to preserve the one-char putback guarantee 
that C requires, though things admittedly get a bit weird with a single 
Unicode char being represented by up to four bytes.


Sean