Re: New long comments in 5.1

[Philippe Lhoste <PhiLho@...>]

I wrote:
> > Just one thought:
> >
> > Block comments and literal strings are mostly meant for enclose large 
> > number of lines (less for literal strings that are useful, amongst 
> > other strings, to enclose Dos paths). At least, that's where there is 
> > the most likely potential problems.
> >
> > Literal srings have already some conventions, like if they start by a 
> > new line, it is not enclosed in the string.
> >
> > Why not make another convention, like starting (some) multiline block 
> > comments (literal strings) with --[[[ ([[[) anywhere in a line and 
> > ending them with ]]] (or --]]] as it is convenient) only at the start 
> > of line, a bit like the Perl/PHP HereDoc?
> >
> > It lifts a lot of potential problems, as we rarely find code like:
> >
> > val = t[a[f[i
> > ]]] * 2;
> >
> > aren't we?
>
> Or, if really we want to take care of all cases, we can use the HereDoc 
> syntax:
>
> longText = [[TERMINATOR
> blabla
> ...
> 42
> ...
> foo bar
> TERMINATOR]];    -- Always at start of line

Mmmm, not so bright, it is incompatible with simple use of this string, 
like:

path = [[C:\Good Languages\Lua\Bright Script.lua]]

unless we make additional rules like:

Single line literal strings/comments use old syntax, multiline ones 
always starts with new line or HereDoc terminator.

Or we use foo = [[[TERMINATOR
but I like it less (more exceptions).

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Philippe Lhoste (Paris -- France)
Professional programmer and amateur artist
http://Phi.Lho.free.fr
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