Re: [Dltk-dev] heredoc scanner help

[Jae Gangemi <jgangemi@xxxxxxxxx>]

  in the 2nd case you're going to have to write your own rule, but that still should be much simpler to handle b/c the ';' appears on the terminator line, not after the heredoc start.

  your rule would have to check for q" followed by some character and if it saw a char after the ", read in all the chars up until the new line, save that as your terminator, and keep reading lines until you hit the terminator.

  sub-classing the pattern/multi-line rule to do this should get you want you want.

On Wed, May 16, 2012 at 2:21 PM, Bruno Medeiros <bruno.do.medeiros@xxxxxxxxx> wrote:

On Wed, May 16, 2012 at 6:40 PM, Jae Gangemi <jgangemi@xxxxxxxxx> wrote:

  actually, i just went and re-read the wiki page, shouldn't this be simple for D?

  you'd just need multiple multi-line rules that look something like this (not sure if there is an escape char):

    new MultiLineRule("q(", ")\n", token, (char) 0, true);
    new MultiLineRule("q{", "}\n", token, (char) 0, true);

  no?

That should be correct to:
  new MultiLineRule("q\"(", ")\"", token, (char) 0, true);
but anyways: yes and no, that would work for the heredoc with "a delimiter character (any of () <> {} or []) " which is the first case as shown in the wiki, but it wouldn't work for the second case with a delimiter identifier string:

int main() {
    string list = q"IDENT
1. Item One
2. Item Two
3. Item Three
IDENT";
    writef( list );
}

which is more like the Ruby and Perl heredoc.

--
Bruno Medeiros

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-- 
-jae