"Tolkin, Steve" <Steve.Tolkin@[...].COM>  writes:

[...]

>  Change explanation in comment section
>  to three subcategories: to end of line,
>  nestable pairs, and non-nestable pairs.
>  Put XML and HTML in non-nestable category.

ok

>  Add a category for evaluation of a string expression
>  e.g. eval in Perl.

ok

>  Add a category for quoting that either 
>  1 evaluates internal variables, e.g. "..." in sh, Perl etc.
>  2 does not evaluate internal variables, e.g. '...' in
>  sh, Perl etc.

ok

>  Try to add more scripting languages, e.g. sh, csh, bash,
>  and awk.
>  
>  Try to add more details about SQL (and maybe label as SQL-89,
>  SQL-1999, where they differ).

contributions welcome!