I'm not sure what you mean by "containing control words" but code
readability issues are usually a call for better code.
For this, perhaps (warning: lightly tested code):
firstunmatched=:3 :0
q=. unquoted=. -.~:/\y=''''
c=. uncommented=. -. +./\ q * 'NB.' E. y
n=. parendepth=. +/\q*c*-/'()'=/y
if. 0 < {: n do.
(n i. _1) <. 1+1 i:~0 1 E. n
else.
n i. _1
end.
)
In other words: ignoring quoted and commented parenthesis, look for
the first occurrence of either an unbalanced right parenthesis or an
unbalanced left parenthesis.
Let me know, though, if you see any flaws in this implementation.
Thanks,
--
Raul
On Mon, Dec 26, 2016 at 12:57 PM, Henry Rich <[email protected]> wrote:
> I don't think it is reasonable to treat ')' and 'NB.' as containing control
> words. It makes the code very hard to read.
>
> Showing the mismatched parenthesis is important enough that it might be
> better to have it even with this deficiency, but it IS a deficiency and
> should be treated as a bug to be fixed someday.
>
> Henry Rich
>
> On 12/26/2016 11:48 AM, bill lam wrote:
>>
>> I double checked with j602, it has no problem in high lighting
>> the unmatched )( in
>>
>> a '+' ((mno - rst) % b NB. )unmatched paren
>> ^
>> a '+' ((mno - rst) % b ')' NB. )unmatched paren
>> ^
>> and
>>
>> '(' (=:))
>> ^
>> But this is matched and is correct
>> a '+' ((mno - rst) % b ')') NB. )unmatched paren
>>
>> I think it is reasonable to omit this pattern for
>> syntax high-lighting.
>>
>
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