Inserting unicodeText into a unicode string? #3

Richmond richmondmathewson at gmail.com
Sun Aug 29 12:27:41 CDT 2010


On 08/29/2010 07:19 PM, Mike Bonner wrote:
> Yep, same difference, using word 4 works.  The main thing is to make sure
> you catch actual selections and change behavior accordingly.  Should be a
> piece of cake now that you grok selectedchunk.
>    

That presupposes one likes cake.

> On Sun, Aug 29, 2010 at 10:15 AM, Richmond<richmondmathewson at gmail.com>wrote:
>
>    
>> On 08/29/2010 07:02 PM, Mike Bonner wrote:
>>
>>      
>>> Set up a simple stack with a button and a field.  Put some text into the
>>> field, and in the button put
>>>
>>> on mouseup
>>> put the selectedchunk
>>> end mouseup
>>>
>>> Make sure you have an active insertion point in the field and click the
>>> button.
>>>
>>> It should put something like "char 22 to 21 of field 1" into the message
>>> box.
>>>
>>> If you had a selection it would be char firstpositionnumber to char
>>> secondpositionnumber.  Since its just an insertion point it will always be
>>> of the relation -- word 2 is 1 more than word 4.
>>>
>>> As well, the dictionary contains this:
>>>
>>> *Summary:
>>> Returns a chunk expression describing the location of the text selection
>>> or
>>> insertion point.
>>>
>>> Examples:
>>> the selectedChunk
>>> put the selectedChunk into storedChunk
>>>
>>>
>>> Use the selectedChunk function to determine which text is selected.
>>>
>>> Value:
>>> The selectedChunk function returns a chunk expression of the form
>>>   char startChar to endChar of field fieldNumber
>>> *
>>>
>>>
>>> On Sun, Aug 29, 2010 at 9:53 AM, Richmond<richmondmathewson at gmail.com>
>>> wrote:
>>>
>>>
>>>        
>>>> On 08/29/2010 05:57 PM, Mike Bonner wrote:
>>>>
>>>>
>>>>          
>>>>> In this case, the selectedtext is a property that contains no
>>>>> positional information.  You can't do math on selectedtext unless it
>>>>> just so happens to contain a number.
>>>>> So, to do what you want you would need to use selectedchunk instead,
>>>>> check it to see a) if its only an insertion point (word 4 of the
>>>>> selectedchunk - word 2 of the selectedchunk will = -1 if this is the
>>>>> case) then if I recall correctly, word 2 of the selectedchunk is the
>>>>> cursor position so checking char (word 2 of the selectedchunk - 1)
>>>>> will give you the char reference that you're looking for.
>>>>>
>>>>>
>>>>>
>>>>>
>>>>>            
>>>> I'd be very interested to know exactly where you recall 'word 4',
>>>> 'word 2' and so on from as I cannot find anything like this in reference
>>>> to selectedChunk.
>>>> _______________________________________________
>>>>
>>>>
>>>>          
>>>        
>> Still fairly unclear to baboons like me . . .  :)  Mainly because the
>> documentation doesn't explicitly mention words
>> 4 - 1.
>>
>> I set up 4 flds and 'pumped' word 4 - 1 into the flds and got something
>> like this:
>>
>> 14 to 15 char
>>
>> which shows fairly clearly that that is an insertion rather than a
>> selection as the difference between
>> words 4 and 2 is only 1: mind you, words 4 - 1 is a bit counter-intuitive.
>>
>> It is really only "a step away" from that to this:
>>
>> put word 4 of the selectedChunk into W4
>> put char W4 of fld "fTX" into fld "fOUTPUT"
>>
>> giving one the char preceding the insertion point.
>>
>> Now, Ho - Ho - Ho; I shall have "a dark night of the soul" trying to do
>> that lot for unicode . . . :)
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>>      
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