Repeat syntax addition

[Mike Bonner]

Use of the word "Container" is a bit deceptive.  Perhaps "datasource" would
be better.  Is it still possible to add notes to the dictionary?

On Sun, Apr 5, 2015 at 5:11 PM, Peter Haworth <pete at lcsql.com> wrote:

> I'd guess the last of the options.
>
> The more I think about this, the more I think there should be mention of
> this in the dictionary entry for repeat.
>
> It's a little like the ability to use a function to create a sortkey in the
> sort command.  Nothing in the dictionary about that except for a user note.
>
> Pete
> lcSQL Software <http://www.lcsql.com>
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>
> On Sun, Apr 5, 2015 at 3:40 PM, Mike Bonner <bonnmike at gmail.com> wrote:
>
> > Yeah, kinda makes sense that it would work that way. Grab the data from
> the
> > container once, do magic things behind the scenes to get it ready to go,
> > then loop through the lines.  I guess it could work either way though,
> > where it uses byte offsets to get the next chunk, which would have made
> the
> > function method really suck for large data sets.
> >
> > Now I'm curious.. what exactly does repeat for each do?  Split on cr,
> sort
> > the keys and increment each loop to pop out the right line from the
> array?
> > Store all the data in a temp variable and read each line (item, char) by
> > start/end position?
> >
> > On Sun, Apr 5, 2015 at 4:19 PM, Jerry Jensen <jhj at jhj.com> wrote:
> >
> > > Hi Mike,
> > >
> > > > On Apr 5, 2015, at 12:31 PM, Mike Bonner <bonnmike at gmail.com> wrote:
> > > >
> > > > While not exactly whats been requested, this works pretty well:
> > > >
> > > >    repeat for each line tLine in (myFilter(sData,"abc*","with"))
> > > >
> > > > I like the way a where clause reads as in the OP, but being able to
> use
> > > an
> > > > inline function for data generation is rather powerful, and if all
> you
> > > need
> > > > is a filter, setting up a function to do so is pretty straight
> forward.
> > >
> > > Good trick! I didn't know you could do that either.
> > >
> > > I wondered if the function was called just once, or on every repeat.
> Your
> > > exapmle wouldn't tell, because the function would return the same stuff
> > > every time.
> > >
> > > So I tested it. The answer is that the function is called only once.
> > Good!
> > >
> > > global gCount
> > >
> > > on mouseUp
> > >    global gCount
> > >    put 0 into gCount
> > >    repeat for each line L in mylines()
> > >       put L & cr after msg
> > >    end repeat
> > >    put gCount after msg -- how many times mulines() was called
> > > end mouseUp"
> > >
> > > function mylines
> > >    global gCount
> > >    add 1 to gCount
> > >    return "1" & cr & "2" & cr & "3" & cr
> > > end mylines
> > >
> > >
> > >
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