nested comments? (page 2)

Roberto Mariottini wrote: > "Pavel Minayev" <evilone@omen.ru> ha scritto nel messaggio > news:a0th24$svc$1@digitaldaemon.com... > >>"Walter" <walter@digitalmars.com> wrote in message >>news:a0tbj5$ptm$1@digitaldaemon.com... >> >> >>>no. Use the version statement to block out sections. >>> >>Unfortunately, version cannot comment out blocks with bad syntax - >>which is needed sometimes. For example, I occasionally start >>writing something, then decide to try another idea, but comment >>the unfinished block out rather than deleting it in case I'll >>revert back to it later... and such a block may have improper >>syntax (like "if(a == "). >> > > I also often need nested comments as a fast way to comment-out weird code. > To me seems better to define a new style of comment to comment out big > blocks of code > (or a block of natural language description).... > > >>@@ >> > .. big block of text, with nested >@@ and <@@ ... > <@@ > > I like to think this comment must be at column 0, so it's easy to > distinguish from normal code Insert the text: //weirdcode// at the beginning of each line. Or, use the D-in-HTML feature and comment out large chunks with  -RB

"Russell Borogove" <kaleja@estarcion.com> wrote in message news:3C3A713E.4050605@estarcion.com... > Insert the text: > > //weirdcode// > > at the beginning of each line. Suppose you have 100 lines... > Or, use the D-in-HTML feature and comment out large chunks with  For this to work, file must have .html extension. I personally prefer .d =)

So name them foo.d.html ;) Might be nice for D compiler to automatically detect a <html> tag and assume it should start parsing HTML automagically until it finds a </html>. So long as Walter never wants to use C++ template syntax this shouldn't be a problem. Then you can just use foo.d as your file name. Sean "Pavel Minayev" <evilone@omen.ru> wrote in message news:a1egsp$2g3g$1@digitaldaemon.com... > "Russell Borogove" <kaleja@estarcion.com> wrote in message news:3C3A713E.4050605@estarcion.com... > > > Insert the text: > > > > //weirdcode// > > > > at the beginning of each line. > > Suppose you have 100 lines... > > > Or, use the D-in-HTML feature and comment out large chunks with  > > For this to work, file must have .html extension. I personally prefer .d =)

Pavel Minayev wrote: > "Russell Borogove" <kaleja@estarcion.com> wrote in message > news:3C3A713E.4050605@estarcion.com... > > >>Insert the text: >> >>//weirdcode// >> >>at the beginning of each line. >> > > Suppose you have 100 lines... Suppose you have an editor that can paste a rectangular selection and drop down to the same column on the next line in a single keystroke. (Dev Studio, for example) Anyway, that's what works for me, and I understand it doesn't work for everybody. -RB

"Russell Borogove" <kaleja@estarcion.com> wrote in message news:3C3B64F8.4070003@estarcion.com... > Suppose you have an editor that can paste a rectangular > selection and drop down to the same column on the next > line in a single keystroke. (Dev Studio, for example) Well I do hav DevIde. But since it doesn't support D (yet?), I have to use the FAR built-in editor + Colorer plug-in, after writing a highlighting scheme for D. Unfortunately, this editor doesn't support tricks like the one you mentioned...

January 17, 2002

Re: nested comments?

Posted by OddesE
in reply to Pavel Minayev

Permalink

OddesE

Posted in reply to Pavel Minayev

Permalink

"Pavel Minayev" <evilone@omen.ru> wrote in message news:a0ujps$1iqj$1@digitaldaemon.com...
> "Walter" <walter@digitalmars.com> wrote in message news:a0tv8q$15rd$1@digitaldaemon.com...
>
> > I've been considering making version more tolerant of bad syntax, but it
> is
> > going to have to count { and } !
>
> Still... what's wrong with nested comments? It's really funny to see that, even though ANSI commitee didn't make them standart, most C++ compilers around have a switch which enables them. It's not so hard to implement, but could be a useful thing!
>

Yes indeed, what *is* wrong with nested comments?
It seems almost no language supports it (C/C++, Java,
Pascal, HTML, D?) but why?
Is it that difficult to implement?
Is it a feature that would easily be misused?
Is there something I am totally missing?

Personally I think one of the very big disadvantages of
all the languages mentioned above is their lack of nested
comments. It is just so easy to comment out a block of code
for debugging purposes with the /* and */ comments...I
never ever use /* and */ for normal comments, because then
I 'lose' the option to comment out blocks of code. So when
I write a function header comment, it looks like this:

// ===================================
//  Print ([in] char[] string)
//
//  DESCRIPTION:   Prints out the string argument to stdout
//  ARGUMENT:       string:  The string to print
//  RETURNS:           -
//  EXCEPTIONS:     -
// ----------------------------------------------------

Something like that...
I would rather want to use /* */ but because they can't
be nested it causes all kinds of problems, so I avoid
using them for normal comments at all.
Worse still, when I get someone elses code, who does
use /* and */ I am in trouble...

So I beg you, please make the comments nest...It would
solve a lot of problems (for me).


--
Stijn
OddesE_XYZ@hotmail.com
http://www.OddesE.f2s.com
__________________________________________
Remove _XYZ from my address when replying by mail

"Martin York" <Martin.York@veritas.com> wrote in message news:a27ara$nbl$1@digitaldaemon.com... > Just use > > #if 0 > > /* Commented out code > > */ > > #endif D doesn't have preprocessor! One could use the version() blocks but they require correct code syntax inside themselves, so it's just a partial solution.

"Pavel Minayev" <evilone@omen.ru> wrote in message news:a27b0o$nl7$1@digitaldaemon.com... > "Martin York" <Martin.York@veritas.com> wrote in message news:a27ara$nbl$1@digitaldaemon.com... > > > Just use > > > > #if 0 > > > > /* Commented out code > > > > */ > > > > #endif > > D doesn't have preprocessor! > > One could use the version() blocks but they require correct code syntax inside themselves, so it's just a partial solution. > > Maybe this is a feature that needs to be added to languages (in general) The ability to "comment" out sections of code for debugging purposes, but that refuses to compile in release mode. Just a thought. Martin

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