[docs] SDL format needs to be described

[thedeemon]

Neither official SDL site nor its mirror are working anymore, so SDL format itself is a mystery now.

[marler8997]

SDL was already a mystery:)

[Abscissa]

I've now mirrored the site here (luckily grabbed from when web.archive.org was still serving a mirror):
http://semitwist.com/sdl-mirror/Home.html

The main language description is on this page:
http://semitwist.com/sdl-mirror/Language+Guide.html

I'm leaving this ticket open because SDLang-D should still provide a documented spec on it's own.

[Abscissa]

There's also now a description here: http://sdlang.org/

But again, a more formal spec is still needed.

[trikko]

Aren't parentesys on blank line accepted? Why? I put them wrong every single time.

[Abscissa]

On 06/08/2016 11:58 AM, Andrea Fontana wrote:

Aren't parentesys on blank line accepted? Why? I put them wrong every single time.

Despite what the use of curly braces may suggest, SDLang is a
newline-terminated language, not a semicolon-terminated one. So the
newline ends the tag. Additionally SDLang supports anonymous tags, with
no name. Therefore, this:

foo
{
bar
}

Is two tags:

1. "foo" tag with no children.
2. An unnamed anonymous tag with one child, "bar".

As with most newline-terminated languages, there IS a line-continuation
operator:

foo
{
bar
}

That makes the parser ignore the newline and treat it as:

foo {
bar
}

[Abscissa]

Come to think of it, that's something that would be important to include in an SDLang FAQ or something (note to self).