On Sat, Dec 13, 2008 at 7:22 PM, Chris Double <[email protected]> wrote:
> On Sun, Dec 14, 2008 at 2:09 PM, Slava Pestov <[email protected]> wrote:
>> In fact C: does not begin a form, it just reads the next two tokens,
>> so it should not affect indent.
>
> I wonder if there's a way to embed this information in Factor itself.
> Maybe as word properties? Then any editor can query factor for the
> information. And users can change the indentation to suit their tastes
> by changing Factor and have the editor pick it up.
Yes, that would be cool. Lately I've been thinking about moving away
from turing-complete parsing words and towards a more declarative
model for extensible syntax. Basically, we have three types of parsing
words these days:
- Literal syntax
- Defining words
- Stuff like ENBF: ... ;EBNF which reads a multiline string and hands
it off to some quotation
I think all three can be handled with something a bit more
declarative. So an editor could recognize that the text between EBNF:
... ;EBNF is custom syntax to be left alone, and that H{ should be
indented like [ and {, etc.
Slava
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