To avoid a newline in multi-line strings

[Nick Sabalausky]

"bearophile" <bearophileHUGS at lycos.com> wrote in message 
news:j0enh7$tec$1 at digitalmars.com...
> After a short discussion in D.learn I have created a tiny enhancement 
> request:
> http://d.puremagic.com/issues/show_bug.cgi?id=6361
>
> I show its text here too. It's not essential, it's a minor thing.
>

Since this is re-posted here, I'll repost my response. Please note that this 
does properly handle bearophile's original problem, in addition to 
indenting. Also, individual parts of the functionality are available a la 
carte' as stripTop/Bottom/Right, and unindent:

I created a (CTFEable) function normalize() (maybe could use a better 
name?):

http://www.dsource.org/projects/semitwist/browser/trunk/src/semitwist/util/text.d#L630

void foo()
{
    if(blah)
    {
        // Works properly:
        writeln("
            - First item:  150
            - Second item: 200
                -- Subitem 1
                -- Subitem 2
            - Third item:  105
            ".normalize());
    }
}

Another example:

Do this:
--------------------
void foo()
{
    enum codeStr = q{
        // Written in the D Programming Langauge
        // by John Doe

        int main()
        {
            return 0;
        }
    }.normalize();
}
--------------------

Instead of this:
--------------------
void foo()
{
enum codeStr =
q{// Written in the D Programming Langauge
// by John Doe

int main()
{
    return 0;
}};
}
--------------------

The resulting string is exactly the same.

I'd be happy to work it into something appropriate for Phobos if people are 
intersted.