delete chunk.

Jonathan Lynch jonathandlynch at gmail.com
Wed Nov 3 09:32:37 CDT 2010


Hi Alex,

I am starting to agree with you that some of this becomes counterintuitive.
Not hard to work around, but potentially confusing to a newcomer.

I am in the habit of fastidiously making sure that my lists do not have a
trailing delimiter, so I have not been plagued by this too much.

"a,b,,," should say that it contains five items (two characters and three
empty items). If it does not, that is confusing.

On Wed, Nov 3, 2010 at 10:25 AM, Alex Tweedly <alex at tweedly.net> wrote:

> I agree it would be great to be able to say
>   set the payAttentionToTrailingDelimiters to true
>
> But in the meantime you can use the fact that doubling a trailing delimiter
> will be ignored.
> repeat for each line L in tData
>   if the last item of (L & the itemDel) is empty then
>      -- deal with an empty one
>   else
>      -- use "the last item of L" which is not empty
>   end if
>
> -- Alex.
>
>
> On 03/11/2010 12:52, Ken Ray wrote:
>
>> Just tossing this out there, but I *love* this behavior. I'm sure there
>>> are
>>> situations where it's undesirable, but are easily compensated for by just
>>> adding another delimiter.
>>>
>>> Begin able to do the following is very handy and makes the code clean:
>>>
>>> put "foo"&  cr after fld "x"
>>> put "bar"&  cr after fld "x"
>>> put the number of lines of fld "x"
>>>
>>> Having that return 2 is extremely convenient.
>>>
>> Agreed, but sometimes it's not convenient when you want to get the "last
>> item" of a line; for example, if you have a container that holds columns
>> for
>> First Name (tab) Last Name (tab) Notes, and some lines have a note and
>> some
>> don't, you can't just set the itemDelimiter to tab and run through the
>> container and get the "last item" or "item -1" of the line to check if the
>> person entered a note; if they didn't provide one, then check the "last
>> item" will give you their Last Name instead.
>>
>> It would be great if there was a global setting that you could toggle it
>> on
>> in these circumstances, something like:
>>
>> put item -1 of "Ken,Ray,"
>> ==>  returns "Ray"
>>
>> set the dontIgnoreTrailingDelimiter to true
>> put item -1 of "Ken,Ray,"
>> ==>  returns ""
>>
>> :-)
>>
>> Ken Ray
>> Sons of Thunder Software, Inc.
>> Email: kray at sonsothunder.com
>> Web Site: http://www.sonsothunder.com/
>>
>>
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