On 22/12/2014 16:56, J. Landman Gay wrote:
Wouldn't "if" and "end if" be a code block delimiter? And the same for
"switch" and "end switch"?
"single block delimiter" = one open, one close.
At least that's my understanding.
In theory we could therefore select one block to fold inside functions - but
in practise the end token would need to include a space (e.g. "end if") and
elsewhere we've defined the set of characters that can be included in a
LiveCode token, which does not include a space. I did experiment with that
(not for this purpose, but because we can't for the same reason teach BBEdit
about multi-word keywords, e.g. "is not among the lines of") but it caused a
lot more problems than it solved.
The para I quoted from the docs
(http://www.barebones.com/support/develop/clm.html) is followed by this:
Unfortunately, some languages (such as Python or Ruby) don’t have simple
paired delimiters. Single-token matching does not cover such situations, which
is one reason BBEdit comes with coded language modules for these languages.
So, if anyone fancied programming a 'coded language module', it can do
anything, including understanding that 'among the lines of' is a keyword, and
that 'try' is a block closed by 'end try'... but until then, this is the cheap
60% solution.
On 22/12/2014 16:56, J. Landman Gay wrote:
Wouldn't "if" and "end if" be a code block delimiter? And the same for "switch" and
"end switch"?
On December 22, 2014 5:28:01 AM CST, Ben Rubinstein <benr...@cogapp.com> wrote:
It's not possible, I'm afraid.
This is a "Codeless Language Module", which works by just declaring
keywords
and grep patterns. It's limited in what it can achieve; and in
particular the
structural elements only work for languages which have a single block
delimiter. Documentation:
Many languages group statements by enclosing them in block delimiters
— { … } in C-family languages, or BEGIN … END in Pascal. These keys
specify the opening and closing tokens for such blocks. BBEdit detects
blocks (even nested ones) and makes it possible to fold them.
Unfortunately as LiveCode isn't one of those languages, it's not
possible.
A long time ago someone-who-I-have-forgotten wrote a full-on Language
Module
for Revolution (as it then was) - since it was custom coded with a full
parser
it could do anything. Unfortunately several versions of BBEdit ago
there was
an incompatibility which meant that BBEdit crashed as soon as you made
a
change to a file which this module was applied to; and the latest
version of
BBEdit won't load it at all.
It would still be possible for someone to repeat this task (and
arguably since
we now have access to the source code of the actual LiveCode parser
there
might be a place to start) - but I suspect that now that BB have
introduced
the Codeless Language Modules, its unlikely anyone will feel the the
small
extra gain is worth the very considerable extra effort.
Ben
On 21/12/2014 01:06, Brahmanathaswami wrote:
re: "if" and "switch" folding...
I tried. in the plist I had added this: under the language features
section/dict
Devin Asay wrote:
Ben or Swami, do you know if it’s possible to add folding for repeat
loops
and if-then structures? It would sure be nice to collapse log,
nested
if-thens to get a sense of the whole handler or script flow.
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