how to set the textStyle of word 1 of the selection?

[Peter Brigham MD]

On Mar 16, 2010, at 6:40 AM, BNig wrote:

> André,
> I would test Peters solution a little more. If you start your  
> selection with
> a space the word before the space will be the one that is targeted  
> for your
> textstyle. The same with return and tab.
> regards
> Bernd


True. I was assuming that the beginning of the selection would be a  
character and not white space. Here's a function that tells you if the  
character in a field is white space or not:

function isWhiteSpace charNbr,fldRef
     put value(fldRef) into fldText
     put the number of words of char 1 to charNbr of fldText \
            into firstPartCount
     put the number of words of char charNbr to -1 of fldText \
            into secondPartCount
     return firstPartCount + secondPartCount = \
            the number of words of fldText
end isWhiteSpace

So incorporating that into the handler would give:

on mouseup
    put the selectedchunk into selCh
    if the selectedtext = empty then exit mouseup
    put the long id of the selectedfield into fldRef
    put value(fldRef) into fldText
    put word 2 of selCh into startChar
    put the number of words of char 1 to startChar \
           of fldText into wordNbr
    if isWhiteSpace(startChar,fldRef) then add 1 to wordNbr
    set the textstyle of word wordNbr of \
           fldRef to "link"
end mouseup

On a different note, I'm confused about the behavior of full control  
references, eg, fldRef in the above example, which contains a long id  
of a field. The last line of the mouseup handler works, because the  
engine evaluates the variable fldRef before executing the command, but  
if instead of "set the textstyle of word wordNbr of fldRef" you do this:
    put word wordNbr of fldRef
you get the corresponding word of "field id 3521 of card id 1009 of  
stack..." -- ie, the unevaluated string contained in the variable  
fldRef.

So under what circumstances does Rev evaluate a full control  
reference? It's clearly not in all contexts.


-- Peter

Peter M. Brigham
pmbrig at gmail.com
http://home.comcast.net/~pmbrig