How to I get clickItem?

[Mark Brownell]

On Sunday, August 31, 2003, at 11:01  AM, Bill Vlahos wrote:

> My goal for this is to have a field with data that is structured. The 
> user clicks on the item to edit the contents in another field(s) and 
> replaced when the editing is done. I can't do that if I don't know 
> which item was selected.
>
> Bill Vlahos

Hi Bill,

You could try a Parallel Numerical Lineal Parser in conjunction with 
the htmlText capability.

Not knowing Transcript very well there is probably an easier way but 
this is how I would do it not knowing for sure.

Take your items and put them inside tags sets <item><p> & </p>. You can 
include <p></p> for line breaks inside your items. You then use 
offset() to make a list of char locations for all instances of 
"<item><p>":

Warning untested code:

   global itemArray2
   put yourTextToSearch into tZap
   put 0 into tStart
   put 1 into tElementNum
   repeat
     put offset("<item><p>",tZap,tStart) into tNum
     put (tNum + tStart) into tStart
     if tNum < 1 then exit repeat
     put tStart into itemArray[tElementNum]
     add 1 to tElementNum
   end repeat
   put the number of chars in tZap into xZap
   put xZap into itemArray[tElementNum + 1]

Now you have an array of numerical values for the beginning of each 
item delimiter, "<item><p>". With a little clean up math to remove the 
number of chars within any tag set you will be left with the same 
number of characters that are rendered in your field after using the 
htmlText to present it. Use the array to make a numerically corrected 
array. You now have a numerical reference to compare the char number 
(the clickCharChunk) to the range that fits in the new array. In that 
way you will get the item number you are looking for when a user clicks 
in your field.

array clean up script:
put 1 into itemArray2[1]

repeat with xy = 1 to tElementNum
   put itemArray[xy] into get1
   put itemArray[xy + 1] into get2
   put char get1 to (get2 - 1) of tZap into holdItemWithTags
   put the htmlText of holdItemWithTags into zip
   put the number of chars in zip into holdNumZip
   put holdNumZip into itemArray2[xy + 1]
end repeat

-- with the already created global itemArray2

-- put this in myField script:


on mouseUp
   global itemArray2
   put the clickCharChunk of myField into zap
   put 1 into z
   repeat
     if itemArray2[z] >= zap then
       put z into itemNumberIs
       exit repeat
     end if
     add 1 to z
   end repeat
end mouseUp

-- you now have the item number in itemNumberIs

Mark