gmane.comp.ide.revolution.user

Re: Escaping the Filter command's wildcards

Mark Schonewille — 2013-05-22T21:43:13

Paul,

I read your message three more times, and I think I should note that

put replacetext("xxx?!xxx","\?","")

works too: --> xxx!xxx

in addition to

put replacetext("xxx?!xxx","[\?!]","")
--> xxxxxx

--
Best regards,

Mark Schonewille

Economy-x-Talk Consulting and Software Engineering
Homepage: http://economy-x-talk.com
Twitter: http://twitter.com/xtalkprogrammer
KvK: 50277553

Use Color Converter to convert CMYK, RGB, RAL, XYZ, H.Lab and other 
colour spaces. http://www.color-converter.com

Buy my new book "Programming LiveCode for the Real Beginner" 
http://qery.us/3fi



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Re: Escaping the Filter command's wildcards

Mark Schonewille — 2013-05-22T21:37:30

Hi Paul,

This works fine for me:

put replacetext("xxx?!xxx","[\?!]","")
--> xxxxxx

What exactly is the problem you're having? Could you post some of the 
code that doesn't work for you?

--
Best regards,

Mark Schonewille

Economy-x-Talk Consulting and Software Engineering
Homepage: http://economy-x-talk.com
Twitter: http://twitter.com/xtalkprogrammer
KvK: 50277553

Use Color Converter to convert CMYK, RGB, RAL, XYZ, H.Lab and other 
colour spaces. http://www.color-converter.com

Buy my new book "Programming LiveCode for the Real Beginner" 
http://qery.us/3fi

On 5/22/2013 23:16, Paul Dupuis wrote:

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Re: randomly order a list

Chris Sheffield — 2013-05-22T21:34:54

Thanks for the suggestions everyone, but I'm still getting strange results, and I'm beginning to think there's something I'm doing that's affecting use of the random() function. Not really sure what it would be though. Here's my code:

set the itemDel to tab
put "*" & item 3 of sRecSet into tPossibleAnswers -- correct answer
put cr & item 4 of sRecSet after tPossibleAnswers -- distractor 1
put cr & item 5 of sRecSet after tPossibleAnswers -- distractor 2
sort lines of tPossibleAnswers by random(999999) -- randomly re-order the list

This app pulls words from a database and presents three possible answers to choose from. The asterisk above is used to identify the correct answer after the sort takes place. It's removed later on. The sort only works randomly one time. After that, the same sort order is used every time, so the correct answer *always* ends up listed first. It doesn't matter if I use a very high number or if I use 'the number of lines of tPossibleAnswers'. Something is very strange. Just as a quic

Re: RandomSeed test (was:randomly order a list)

Dar Scott — 2013-05-22T21:24:50

There is a potential confusion in the term randomSeed.  We might be using it two ways.

There is the randomSeed property, the state of the random number generator.  

And there is the argument to the random function.


And...
Shouldn't the 'get fld 1' be inside the loop?  (Or initialized the same way each time.) You are using the previous sorted 'it' each time.  Perhaps that is what is doing the scrambling.

This is my test:

on mouseUp
   set the cursor to watch
   put 0 into a1
   put 0 into a2
   put 0 into a3
   put "a" & lf & "b" & lf & "c" into x
   repeat 1000000 times
      put x into myVar
      --sort lines of myVar by random(the number of lines of myVar)
      sort lines of myVar by random(999999)
      if line 1 of myVar is "a" then add 1 to a1
      if line 2 of myVar is "a" then add 1 to a2
      if line 3 of myVar is "a" then add 1 to a3
   end repeat
   put a1 && a2 && a3 into field 1
end mouseUp

I got different results depending on which line is commented out.

Dar


On May 22, 2013, at 2:4

Escaping the Filter command's wildcards

Paul Dupuis — 2013-05-22T21:16:52

The filter command in LiveCode appears to accept a regular expression
(using ? for a single character match, * for multiple character match,
[chars] and [char-char]). However, if you want to filter a container to
a string where you pattern contains a question mark, it does not appear
that you can escape the ? with \? in the pattern to have it treated as a
"real" question mark instead of a wild card.

While \? does not cause ? to be treated as a question mark instead of a
wild card, using [?] does appear to treat it as a real character and not
as a wild card.

Does any one have any knowledge of escaping the special characters
listed in the Dictionary? Or whether other regex special characters can
be used beyond those listed?

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Re: randomly order a list

Dar Scott — 2013-05-22T21:03:48

I think you are going to get the first line of the original list (correct answer) about half the time.  Does that seem right to you from what you have seen?  The correct answer will be in the first two about 80% of the time.  

Using the larger argument for random should give you better proportions.  You should get it in the first line a third of the time.  

If you only interested in the first line, there might be some methods that are clearer and more fun.

Dar


On May 22, 2013, at 11:59 AM, Chris Sheffield wrote:



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RandomSeed test (was:randomly order a list)

2013-05-22T20:46:14

Sorting by a randomSeed greater than the number of elements of a sample does not help.


With the following in a fld 1:   aaa,bbb,ccc


and this in a button:




on mouseUp
   get fld 1
   repeat  1000
      sort items of it by random(3)
      put it & return after lowSeed
   end repeat
   
   repeat  1000
      sort items of it  by random(3333)
      put it & return after highSeed
   end repeat
   
   repeat with y = 1 to the number of lines of lowSeed
      add 1 to lowSeedCounter[line y of lowSeed]
   end repeat
   
   repeat with y = 1 to the number of lines of highSeed
      add 1 to highSeedCounter[line y of highSeed]
   end repeat
   
end mouseUp


The distribution of the two groups is about the same. 


Craig Newman




-----Original Message-----
From: Dar Scott <dsc-wZr3mp8H3Gw< at >public.gmane.org>
To: How to use LiveCode <use-livecode-1W37MKcQCpJ21N0xZs15Ng< at >public.gmane.org>
Sent: Wed, May 22, 2013 3:59 pm
Subject: Re: randomly order a list


Try replacing 'the number of lines of myVar' with some huge

Re: randomly order a list

Dar Scott — 2013-05-22T19:58:47

Try replacing 'the number of lines of myVar' with some huge number you think is allowed for random(), say 999999.

With small numbers you are likely to get the same number for different lines and perhaps sort does not change order in that case. 

Dar


On May 22, 2013, at 11:59 AM, Chris Sheffield wrote:


---------------------------
Dar Scott
dba 
Dar Scott Consulting
8637 Horacio Place NE
Albuquerque, NM 87111

Lab, home, office phone: +1 505 299 9497
For Skype and fax, please contact.
dsc-wZr3mp8H3Gw< at >public.gmane.org

Computer programming and tinkering,
usually in supporting those developing in 
LiveCode--typically by making LiveCode 
controls, libraries and externals, and
sometimes by writing associated
microcontroller firmware.  
---------------------------

We can not force our goodwill on anyone, we can only set good examples and hope people wish to emulate us. --Ron Paul





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Re: randomly order a list

Randy Hengst — 2013-05-22T18:39:06

Chris,

I think your problem is the use of the word "lines"…

These versions will show the difference:
on mouseUp
  local myVar
   put "one,two,three" into myVar
   put myVar
   wait 30
   sort lines of myVar by random(10000)
    put myVar
end mouseUp

on mouseUp
  local myVar
   put "one,two,three" into myVar
   put myVar
   wait 30
   sort items of myVar by random(10000)
   put myVar
end mouseUp

on mouseUp
   local myVar
   put "one" & return & "two" & return & "three" into myVar -- now myVar has lines
   put myVar
   wait 30
   sort lines of myVar by random(10000
   put myVar
end mouseUp
be well,
randy
-----
On May 22, 2013, at 12:59 PM, Chris Sheffield wrote:


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Re: Test - Please ignore this message

Richmond — 2013-05-22T18:36:24

The secret of the treasure of the Sierra Madre.

Whoops, so that's what is called a rhetorical question . . .  LOL



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Re: Lime green text on new Livecode website

Richmond — 2013-05-22T18:35:06

The common Cabbage-White caterpillar does rather nice dark-green poos 
(often called 'British Racing Green')
which would look rather fine on the website.

My objection to the logo is the lack of sufficient contrast between the 
LC and the icon.

Richmond.

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Re: randomly order a list

2013-05-22T18:24:35

Chris.


With only three lines, are you sure you are not just seeing possible similar consecutive sorts, since there are not that many options? Try hitting the sort button again. It should work out as advertised.



But with only three, the possibility of keeping the same order, or having one stay in place, is high. If you cannot provide more than three options, maybe it is best to invoke a string of "random" sorts:



1,2,3


3,1,2
2,3,1
3,2,1
1,3,2
2,1,3


and choose one of these at random, or maybe just run through that list, ordering your answers according to the order of the next line in the list.


Craig Newman


-----Original Message-----
From: Chris Sheffield <cmsheffield-mVuRI66OGLPQT0dZR+AlfA< at >public.gmane.org>
To: How to use LiveCode <use-livecode-1W37MKcQCpJ21N0xZs15Ng< at >public.gmane.org>
Sent: Wed, May 22, 2013 2:01 pm
Subject: randomly order a list


I have a list of three words that I need to be randomly sorted. To start with, 
the first word is the correct answer to a question. I want to re-orde

Test - Please ignore this message

Rick Harrison — 2013-05-22T18:24:29

Hi there,

What are you looking here for?

I told you to ignore the message!

Thanks,

Rick

P.S.  I had some issues with my mail server
         and I wanted to be sure everything is
         now working correctly.

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Re: randomly order a list

Björnke von Gierke — 2013-05-22T18:17:15

If you want random sorts, don't change the randomseed. It's set for you on startup, and only should be set if you want non-random things to happen.

If you sort three lines randomly there's a pretty high chance that a given line remains on the same line for two consecutive times. It's not 'always' but often. Three is just not very random to begin with :)

If you want to make sure a given line is at a given place, you should insert it yourself, and not rely on sort, because that's random, and includes your chosen line. For example:

put "option1" & return & "option2" into theLines
sort theLines by random(the number of lines of theLines)
put "option3" & return before line random(2) of theLines --will never be last line

On 22.05.2013, at 19:59, Chris Sheffield wrote:

randomly order a list

Chris Sheffield — 2013-05-22T17:59:42

I have a list of three words that I need to be randomly sorted. To start with, the first word is the correct answer to a question. I want to re-order the list so that the correct answer may be the second or third word, and not necessarily the first. How can I do this successfully every time? The docs give an example like this:

sort lines of myVar by random(the number of lines of myVar)

But this only seems to work successfully one time. After that, the list is always set so the first word is the correct answer. So then I tried randomly setting the randomSeed value, since this value is supposed to affect the random() function and the any keyword, but this didn't seem to make much difference except to change it so either the second or third word is *always* the right answer. I need it to be more mixed up than that.

So does anyone have a good way to do this?

Thanks,
Chris


--
Chris Sheffield
Read Naturally, Inc.
www.readnaturally.com


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RE: Lime green text on new Livecode website

John Dixon — 2013-05-22T17:44:26

How does one perform an accessibility test in an open public space ?... :-) I know some people who have vegetable gardens who think 'squashed caterpillars' are a good thing...

And the new logo with its yellow and green ?... I for one, like it


       
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Re: Lime green text on new Livecode website

Mike Kerner — 2013-05-22T17:37:38

A darker background would help.  I agree that the text is really hard to
read, but I think the color is ok.


On Wed, May 22, 2013 at 8:59 AM, Terry Judd <terry.judd-keaFvQtjc6i7NGdpmJTKYQ< at >public.gmane.org>wrote:

Re: scrolling stack I made

Geoff Canyon — 2013-05-22T17:02:54

Funny, I thought I was getting away with it because I was scrolling to the
left, where the use of trunc instead of round meant that even at the
slowest setting, everything was moving, in some cases too fast.

Here it is adapted to use the array again. It's too bad (for this) that the
loc can't use a fractional value and just work.

on addimage imagename, imageplace, imagespeed
   put imagename into places[imagename]["imagename"]
   put imageplace into places[imagename]["imageplace"]
   put imagespeed into places[imagename]["imagespeed"]
end addimage

on movethings howmuch
   lock screen
   repeat for each key K in places
      put (3072 + places[K]["imageplace"] +
howmuch*100/places[K]["imagespeed"]) mod 2048 - 1024 into
places[K]["imageplace"]
      set the left of image places[K]["imagename"] to
trunc(places[K]["imageplace"])
   end repeat
   unlock screen
end movethings



On Wed, May 22, 2013 at 10:00 AM, Colin Holgate <coiin-H+0wwilmMs3R7s880joybQ< at >public.gmane.org> wrote:

______________________________

Re: Graphic effects parms

Peter Haworth — 2013-05-22T16:35:44

Thanks Scott.

Pete
lcSQL Software <http://www.lcsql.com>


On Tue, May 21, 2013 at 5:49 PM, Scott Rossi <scott-LKc/eEKzhH/sBN0MCq728g< at >public.gmane.org> wrote:

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Re: scrolling stack I made

Colin Holgate — 2013-05-22T15:00:37

The use of an array value was intentional. Try your version and my version while moving very slowly, you'll see that lots of the images will stall in your one. That's because the value keeps rounding down to the nearest pixel. The array approach makes the location be floating point, and so over time the image will reach the next integer value.


On May 22, 2013, at 10:28 AM, Geoff Canyon <gcanyon-Re5JQEeQqe8AvxtiuMwx3w< at >public.gmane.org> wrote:


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Re: LC on iPad?

Colin Holgate — 2013-05-22T14:56:43

Supported in that you can publish apps for iPad. Did you see something that suggested that the Livecode IDE could run on iPad?


On May 22, 2013, at 9:37 AM, DunbarX-YDxpq3io04c< at >public.gmane.org wrote:


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