Comment Lines interfere with continuation lines

Peter Haworth pete at lcsql.com
Wed Jun 27 19:33:36 CDT 2012


Hi Craig,
I kind of see why it doesn't work.  The main surprise was that the line
after the comment was correctly colored, seems like it should have been
colored like a comment, then the problem would have been obvious.

However, it has made me realise that I should really be doing more
validation of parameters at the start of a function/command.  That would
have detected it right away.

Pete
lcSQL Software <http://www.lcsql.com>



On Wed, Jun 27, 2012 at 4:12 PM, <dunbarx at aol.com> wrote:

> Hi.
>
>
> This goes back to HC. You cannot interrupt a line-continued, er, line,
> with a comment.
>
>
> Once committed, you have to complete the whole thing in one shot.
>
>
> Logically, this seems counterintuitive. It just must be how the parser
> thinks.
>
>
> Craig Newman
>
>
>
> -----Original Message-----
> From: Peter Haworth <pete at lcsql.com>
> To: How to use LiveCode <use-livecode at lists.runrev.com>
> Sent: Wed, Jun 27, 2012 6:45 pm
> Subject: Comment Lines interfere with continuation lines
>
>
> I've got into the habit of surrounding changes to my scripts with a couple
> of comment lines that include a reference to the bug/enhancement request
> that cuased them to be changed.
>
> I recently ran into this interesting situation.
>
> My original code looked like:
>
> dispatch function "xyz" to button "123" \
>    with p1,p2
>
> After commenting, the code looked like this:
>
> dispatch function "xyz" to button "123" \
>  --Bug# 567
>    with p1,p3
>  --/Bug# 567
>
> The "with p1,p3" line was colored correctly, not as a green comment line
>
> When testing the bug fix, I put a breakpoint at the start of funtion "xyz"
> and found that the paramaters to it were all empty, depstite the fact that
> when checked right at the dispatch command they had non-empty values in
> them.
>
> After spending some time trying to figure this out and totally exhausting
> my arsenal of swear words that usually fix this type of problem, I
> desparately moved the comment lines to before the dispatch command and
> after the "with p1,p3" line and all resumed working as expected.
>
> It seems that inserting a comment line after a continued line causes the
> remainder of the continued line to be ignored.
>
> Not really very interesting but I thought reporting this may avoid some
> unnecessary frustrations.
>
> Pete
> lcSQL Software <http://www.lcsql.com>
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