* bug#1913: Identifier after reserved word "raise" is not always
@ 2010-01-13 8:03 Stephen Leake
2011-07-09 23:24 ` Juanma Barranquero
0 siblings, 1 reply; 6+ messages in thread
From: Stephen Leake @ 2010-01-13 8:03 UTC (permalink / raw)
To: 1913
It is clear that [a-zA-Z] does not match the characters permitted by
the Ada standard.
However, neither does [[:alpha:]] - consider this fragment:
procedure doµ
the 'µ' (entered by C-x 8 u) is not matched by [[:alpha:]]*
(Emacs 23.1, Windows XP, LANG=C.UTF-8).
This could be fixed by the user; they can define µ to have word
syntax.
Ideally, we would have regular expression character ranges that match
those defined by ISO/IEC 10646:2003 (see LRM 2.1);
Letter, Uppercase
Letter, Lowercase
Letter, Titlecase
Letter, Modifier
Letter, Other
Mark, Non-Spacing
Mark, Spacing Combining
Number, Decimal
Number, Letter
Punctuation, Connector
Other, Format
Separator, Space
Separator, Line
Separator, Paragraph
These categories are used to define Ada lexical elements (LRM 2.2).
But I don't think that's going to happen.
It seems the best compromise is to replace a-z etc with [:alpha:] or
[:alnum:] as appropriate, and hope the user knows how to define
characters to have word syntax. That's a lot of work, since each
modified regexp needs to be tested.
As for matching leading underscores, I agree it would be nice to get
it right. Using shy groups (the elisp name for non-capturing groups)
would help, since it won't disturb the group numbering, as well as
being faster. If it doesn't complicate the testing, I'll try to do
that.
Do you have suggestions about which regular expressions are more
important to be fixed? If you can provide typical code, and point out
the most annoying font-lock failures, that would be a good start.
--
-- Stephe
^ permalink raw reply [flat|nested] 6+ messages in thread
* bug#1913: Identifier after reserved word "raise" is not always
2010-01-13 8:03 bug#1913: Identifier after reserved word "raise" is not always Stephen Leake
@ 2011-07-09 23:24 ` Juanma Barranquero
2011-07-10 17:28 ` Stephen Leake
0 siblings, 1 reply; 6+ messages in thread
From: Juanma Barranquero @ 2011-07-09 23:24 UTC (permalink / raw)
To: Stephen Leake; +Cc: 1913
Stephen, are you planning to fix this problem?
> It is clear that [a-zA-Z] does not match the characters permitted by
> the Ada standard.
>
> However, neither does [[:alpha:]] - consider this fragment:
>
> procedure doµ
>
> the 'µ' (entered by C-x 8 u) is not matched by [[:alpha:]]*
> (Emacs 23.1, Windows XP, LANG=C.UTF-8).
That's because C-x 8 u inserts U+00B5 MICRO SIGN.
Try C-x 8 <RET> 3BC <RET>, which inserts U+03BC GREEK SMALL LETTER MU.
Juanma
^ permalink raw reply [flat|nested] 6+ messages in thread
* bug#1913: Identifier after reserved word "raise" is not always
2011-07-09 23:24 ` Juanma Barranquero
@ 2011-07-10 17:28 ` Stephen Leake
2011-07-10 23:12 ` Juanma Barranquero
0 siblings, 1 reply; 6+ messages in thread
From: Stephen Leake @ 2011-07-10 17:28 UTC (permalink / raw)
To: Juanma Barranquero; +Cc: 1913
Juanma Barranquero <lekktu@gmail.com> writes:
> Stephen, are you planning to fix this problem?
(the general problem of updating ada-mode to use regexp that match a
more correct range of characters)
It's not currently on my list; I haven't gotten any more email about it,
and it's a lot of tedious work. I find I have less time for ada-mode
these days; I mostly work on monotone and DVC (ada-mode does what I need).
--
-- Stephe
^ permalink raw reply [flat|nested] 6+ messages in thread
* bug#1913: Identifier after reserved word "raise" is not always
2011-07-10 17:28 ` Stephen Leake
@ 2011-07-10 23:12 ` Juanma Barranquero
2011-07-11 13:07 ` Stephen Leake
0 siblings, 1 reply; 6+ messages in thread
From: Juanma Barranquero @ 2011-07-10 23:12 UTC (permalink / raw)
To: Stephen Leake; +Cc: 1913
On Sun, Jul 10, 2011 at 19:28, Stephen Leake
<stephen_leake@stephe-leake.org> wrote:
> It's not currently on my list; I haven't gotten any more email about it,
> and it's a lot of tedious work.
Well, it makes sense.
> I find I have less time for ada-mode
> these days; I mostly work on monotone and DVC (ada-mode does what I need).
Do you plan to adapt it to Ada 2012? Not much new syntax, but aspect
specifications and quantified expressions (with a new keyword, "some")
will require some adjustment.
Juanma
^ permalink raw reply [flat|nested] 6+ messages in thread
* bug#1913: Identifier after reserved word "raise" is not always
2011-07-10 23:12 ` Juanma Barranquero
@ 2011-07-11 13:07 ` Stephen Leake
2011-07-12 12:19 ` Juanma Barranquero
0 siblings, 1 reply; 6+ messages in thread
From: Stephen Leake @ 2011-07-11 13:07 UTC (permalink / raw)
To: Juanma Barranquero; +Cc: 1913
Juanma Barranquero <lekktu@gmail.com> writes:
> On Sun, Jul 10, 2011 at 19:28, Stephen Leake
> <stephen_leake@stephe-leake.org> wrote:
>
>> It's not currently on my list; I haven't gotten any more email about it,
>> and it's a lot of tedious work.
>
> Well, it makes sense.
>
>> I find I have less time for ada-mode
>> these days; I mostly work on monotone and DVC (ada-mode does what I need).
>
> Do you plan to adapt it to Ada 2012? Not much new syntax, but aspect
> specifications and quantified expressions (with a new keyword, "some")
> will require some adjustment.
My approach to this is to add stuff as I encounter a need in my own
work, and to support others doing the same with advice.
We have not yet migrated to a 2012 compiler at work, so it won't happen
soon.
--
-- Stephe
^ permalink raw reply [flat|nested] 6+ messages in thread
* bug#1913: Identifier after reserved word "raise" is not always
2011-07-11 13:07 ` Stephen Leake
@ 2011-07-12 12:19 ` Juanma Barranquero
0 siblings, 0 replies; 6+ messages in thread
From: Juanma Barranquero @ 2011-07-12 12:19 UTC (permalink / raw)
To: Stephen Leake; +Cc: 1913
On Mon, Jul 11, 2011 at 15:07, Stephen Leake
<stephen_leake@stephe-leake.org> wrote:
> My approach to this is to add stuff as I encounter a need in my own
> work, and to support others doing the same with advice.
>
> We have not yet migrated to a 2012 compiler at work, so it won't happen
> soon.
OK, understood.
Thanks,
Juanma
^ permalink raw reply [flat|nested] 6+ messages in thread
end of thread, other threads:[~2011-07-12 12:19 UTC | newest]
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2010-01-13 8:03 bug#1913: Identifier after reserved word "raise" is not always Stephen Leake
2011-07-09 23:24 ` Juanma Barranquero
2011-07-10 17:28 ` Stephen Leake
2011-07-10 23:12 ` Juanma Barranquero
2011-07-11 13:07 ` Stephen Leake
2011-07-12 12:19 ` Juanma Barranquero
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