There was a recent feature added to the language that would help - maybe it
was something to do with the owner....
I have a similarly convoluted function and getprop - one of the issues is
that if you want the long name of the stack the control is part of - this
could be a mainstack or a substack - so to get "the stack on which the
control is placed" has always been a bit of a pain...
On 8 August 2015 at 15:16, Peter M. Brigham <pmb...@gmail.com> wrote:
> Here's a quick solution:
>
> function ownerStack pObjLongID
> replace " of " with numtochar(8) in pObjLongID
> set the itemdel to numtochar(8)
> return item -1 of pObjLongID
> end ownerStack
>
> A more general solution is what I use in my library. The getItem()
> function is so useful that I use it *everywhere*.
>
> function ownerStack pObjLongID
> -- returns the name of the stack containing pObjLongID
> -- by Peter M. Brigham, pmb...@gmail.com — freeware
> -- requires getItem(), getDelimiters()
>
> put getItem(pObjLongID,-1," of ") into tStack
> put the name of tStack into stackName
> return stackName
> end ownerStack
>
> function getItem pContainer, pIndex, pDelim
> -- returns item # pIndex of pContainer, given itemdelimiter = pDelim
> -- could just "get item pIndex of pContainer" in the calling handler but
> -- then have to set and restore the itemDelimiter, so this is less
> hassle
> -- for instance, the following returns the filename from the filepath:
> -- put getItem(tPath,-1,"/") into tFileName
> -- defaults to pDelim = tab
> -- allows pIndex to be a range, eg "3-5"
> -- in that case enclose the range in quotes
> -- also allows pDelim to be a string of characters
> -- so you could do this:
> -- getItem("a//b//c//d//e//f",4,"//") -> d
> -- or:
> -- getItem("a or b or c or d or e or f","3-5"," or ") -> c or d
> or e
> -- which expands the possibilities for use enormously
> -- by Peter M. Brigham, pmb...@gmail.com — freeware
> -- requires getDelimiters()
>
> -- first, if pDelim is a string then get a delimiter that is not found
> -- in pContainer and use it in place of pDelim
> if pDelim = empty then put tab into pDelim
> if len(pDelim) > 1 then
> put getDelimiters(pContainer) into tempDel
> if tempDel begins with "Error" then
> return "Error in getDelimiters()"
> end if
> replace pDelim with tempDel in pContainer
> else
> put pDelim into tempDel
> end if
>
> -- now parse pIndex to take care of ranges and negative values
> -- and get the item(s) requested
> put offset("-",pIndex) into dashPos
> set the itemdelimiter to tempDel
> if dashPos > 1 then
> -- don't catch if pIndex is something like -1, -2, etc
> put char 1 to dashPos-1 of pIndex into tStart
> put char dashPos+1 to -1 of pIndex into tEnd
> put item tStart to tEnd of pContainer into theItem
> replace tempDel with pDelim in theItem
> else
> put item pIndex of pContainer into theItem
> end if
> return theItem
> end getItem
>
> function getDelimiters pText, nbr
> -- returns a cr-delimited list of <nbr> characters
> -- not found in the variable pText
> -- use for delimiters for, eg, parsing text files, manipulating arrays,
> etc.
> -- usage: put getDelimiters(pText,2) into tDelims
> -- if tDelims begins with "Error" then exit to top -- or whatever
> -- put line 1 of tDelims into lineDivider
> -- put line 2 of tDelims into itemDivider
> -- etc.
> -- by Peter M. Brigham, pmb...@gmail.com — freeware
>
> if pText = empty then return "Error: no text specified."
> if nbr = empty then put 1 into nbr -- default 1 delimiter
> put "2,3,4,5,6,7,8,16,17,18,19,20,21,22,23,24,25,26" into baseList
> -- low ASCII values, excluding CR, LF, tab, etc.
> put the number of items of baseList into maxNbr
> if nbr > maxNbr then return "Error: max" && maxNbr && "delimiters."
> repeat with tCount = 1 to nbr
> put true into failed
> repeat with i = 1 to the number of items of baseList
> put item i of baseList into testNbr
> put numtochar(testNbr) into testChar
> if testChar is not in pText then
> -- found one, store and get next delim
> put false into failed
> put testChar into line tCount of delimList
> exit repeat
> end if
> end repeat
> if failed then
> if tCount = 0 then
> return "Error: cannot get any delimiters."
> else if tCount = 1 then
> return "Error: can only get one delimiter."
> else
> return "Error: can only get" && tCount && "delimiters."
> end if
> end if
> delete item i of baseList
> end repeat
> return delimList
> end getDelimiters
>
>
> On Aug 8, 2015, at 8:23 AM, David Bovill wrote:
>
> > Given the long id of a control - how do I extract the reference to the
> > stack ti belongs to? I have a function that i have used since the dawn of
> > time for this - but I recall seeing a new chunk / target / reference
> > feature of Livecode in the last year that makes this easier. Did I
> imagine
> > it?
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