date:20170425

Re: Primes and primality checking

2017-04-25 Thread Mark Waddingham via use-livecode


On 2017-04-25 17:01, Devin Asay via use-livecode wrote:

However, it doesn’t seem to be reliable for very large numbers (> 100
digits) as the fellow wants. My math skills are pretty creaky. Anybody
want a crack at this? It’s a fun challenge, plus it can boost LC’s
presence on stackoverflow.


You can only represent integers up to around 2^53 without losing 
precision (as they are represented using IEEE doubles) which means the 
maximum number you can check for primality using this method is around 
9007199254740992.


Warmest Regards,

Mark.

--
Mark Waddingham ~ m...@livecode.com ~ http://www.livecode.com/
LiveCode: Everyone can create apps

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Re: An anomaly in the "read from file" command?

2017-04-25 Thread Mark Waddingham via use-livecode


On 2017-04-26 08:35, Quentin Long via use-livecode wrote:

ask file "What do you want to read?"
put it into DisFile
read from file DisFile until EOF
put it into fld "This Field"

Why didn't I get an error message when I tried to read from a file
that hadn't been opened yet? Shouldn't LiveCode have gotten fussy
about that?


The read / write file commands both set 'the result' if there is an 
error with the operation requested - in this case it would be set to 
something like 'file not open'.


Warmest Regards,

Mark.

--
Mark Waddingham ~ m...@livecode.com ~ http://www.livecode.com/
LiveCode: Everyone can create apps

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An anomaly in the "read from file" command?

2017-04-25 Thread Quentin Long via use-livecode

First off, thanks to Alan Stenhouse for zeroing in on my filter-related 
mistake. Any number fo people *could* have done so, but it was Alan who 
actually did the deed. So, yay Alan!

Second: I discovered something odd as a result of another mistake I made. My 
mistake:

ask file "What do you want to read?"
put it into DisFile
read from file DisFile until EOF
put it into fld "This Field"

What went into field "This Field" was the contents of the *variable* DisFile, 
*not* the contents of the *file* whose name is stored in the variable DisFile. 
This is because of how the pseudo-variable "it" behaves, i suspect.

My mistake was that I didn't *open* file DisFile before reading it, of course. 
And once I did open the file, the reading went on normally, and the contents of 
the field did indeed end up in the field "This Field". So, bad on me for not 
opening the file first, good on me for recognizing & fixing that lapse without 
external assistance. But I do have a question:

Why didn't I get an error message when I tried to read from a file that hadn't 
been opened yet? Shouldn't LiveCode have gotten fussy about that? 

   
"Bewitched" + "Charlie's Angels" - Charlie = "At Arm's Length"

Read the webcomic at [ http://www.atarmslength.net ]!

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Re: ❣an amazing article [Now way off topic]

2017-04-25 Thread J. Landman Gay via use-livecode

On 4/25/17 11:27 PM, Phil Davis via use-livecode wrote:

Well, this is "special". I see the name wasn't merged in.

As long as we're talking about spam/malware, maybe someone here knows
what happened to me two days ago. I've written to PayPal (no response)
and done searches without any real info and only a handful of hits.

Firefox received an update and on relaunch it attempted to reload all
previously open tabs. A small second window appeared and tried to load
this URL:

https://www.paypal.com/webapps/hermes/fallback?product=ec&token=BA-4BN59940BV228700C&fallback=1&reason=bootstrap_failed&Z3JncnB0=

The window went into a loop, waiting for a response and retrying until I
cancelled the reload. I had cookies blocked and no PayPal tabs were open
or involved. I always log out of PayPal and close the tab when I'm done,
and was logged out when this happened. Firefox was reloading 7 tabs,
none pointing to PayPal (Asana, Slack, Google Drive, and other well
known sites.)

I quit and re-launched and got the same thing with the same URL, but
with a different token.

This spooked me. The URL points to an error page on PayPal that says,
basically, that something went wrong with the transaction and my account
hadn't been charged. I don't keep any financial passwords in Firefox so
I'm not worried about that, but how did that happen?

Yesterday Firefox had another update, right on the heels of the first.
Rather than click the Update button, I went to Mozilla and downloaded
the file manually. I closed all open tabs and quit Firefox, then
launched the new update. No ill effects.

Wha..?

--
Jacqueline Landman Gay | jac...@hyperactivesw.com
HyperActive Software | http://www.hyperactivesw.com

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Re: Please block sims emails

2017-04-25 Thread J. Landman Gay via use-livecode


On 4/25/17 10:36 PM, Jerry Jensen via use-livecode wrote:

Somebody is using sims email to post phishing/spam/malware - I don’t
know which because I won’t click it.


He frequently gets infected with malware. But I rather liked this set. 
"Dear!" I wanted to respond, "Darling!!"


--
Jacqueline Landman Gay | jac...@hyperactivesw.com
HyperActive Software   | http://www.hyperactivesw.com


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Please block sims emails

2017-04-25 Thread Jerry Jensen via use-livecode

Somebody is using sims email to post phishing/spam/malware - I don’t know which 
because I won’t click it.

Please block email from him. 

Listmom, hello???


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Re: Make numberFormat even better AND Cognitive Load

2017-04-25 Thread Richard Gaskin via use-livecode

Roland Huettmann wrote:

>  AGAIN -- having read all - I vote for the LC-NATIVE "Excel style"
> number format (enhanced numberFormat in LC, not a new one, no
> depreciation, but just different ways to achieve the same) and the
> ability of fields (text controls) to express at least the same
> styling properties that fields (cells) in Excel support, or text
> boxes in the web browser without having to write my own functions.
> I would like to have it "built-in". It is a wish. LiveCode should
> grow so that the team developing it will consist of 100 core
> developers. It is a wish. Maybe someone else can help developing.
> We can fund it. Whatever. It is a wish. And I do not want to stop
> wishing just because there is "no time left" for the core developer
> team to care for such minor (???) details. They need more support and
> more funding in such case.

I like that.  A lot.

There are many ways to support a project.  Cash is great (they do have a 
donation button), but so is code.

When we think about code contributions, they already have a team far 
larger than 100s.  It's in the thousands.  It's us.

One of the hardest aspects of this problem is the design.  The Excel 
spec is a guide, but not an implementation.  Making that work robustly, 
flexibly, and sensibly within LiveCode is a considerable design project.

And it's a design project that we can do.

We can start today.

Design doesn't require expertise in C++.  The best qualification for 
designing a solution is a clear understanding of the need.

We want this.  Can have have this.

Having begins with designing, and we can design in script.

And once the implementation's design is well honed, we may find we just 
saved the engine team a boatload of design work.

And along the way we have a functional scripted solution we get to use now.

--
 Richard Gaskin
 Fourth World Systems
 Software Design and Development for the Desktop, Mobile, and the Web

 ambassa...@fourthworld.comhttp://www.FourthWorld.com

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Make numberFormat even better AND Cognitive Load

2017-04-25 Thread Roland Huettmann via use-livecode

With reference to the past suggestions, and the last one from Richard
Gaskin:

"Even if the core team were in a position to drop other priorities to add
formatting to fields, they couldn't do it any faster than a scripter who
has the advantage of doing it in LiveCode itself."

I have been thinking about the underlying reasons why we are discussing. I
agree with Richard that a lot of what we have in mind can be done simply
using LiveCode script and behaviors for fields. But are we not doing this
already most of the time?

===
 AGAIN -- having read all - I vote for the LC-NATIVE "Excel style" number
format (enhanced numberFormat in LC, not a new one, no depreciation, but
just different ways to achieve the same) and the ability of fields (text
controls) to express at least the same styling properties that fields
(cells) in Excel support, or text boxes in the web browser without having
to write my own functions. I would like to have it "built-in". It is a
wish. LiveCode should grow so that the team developing it will consist of
100 core developers. It is a wish. Maybe someone else can help developing.
We can fund it. Whatever. It is a wish. And I do not want to stop wishing
just because there is "no time left" for the core developer team to care
for such minor (???) details. They need more support and more funding in
such case. Would they not deserve it? And are there not billions of dollars
around, often enough just wasted for what? ))). Why should not a clever
large company see LiveCode as a way to enhance their public awareness and
sponsor it?
===

Expanding the "numberformat" going beyond...

I favor great visual style and I would love when people start using
LiveCode as a development platform even for the web, as a design system, as
a way to translate to HTML/CSS, Javascript and PHP using ONE base, as a
workshop for great content management systems -- and a lot has been done in
this way during the last three years.

And I am also asking myself, why am I spending time over and over writing
lines of code that are just repeating themselves for me and others, more or
less. And my own library is just my own. I use it. I could share it, but it
is not part of the community really. (And I feel too shy to share it unless
it was reviewed and tested a hundred times.)

So basically, we are not so much discussing about ourselves -- at least not
when there is some experience gained developing with LiveCode -- we are
discussing about the LANGUAGE as we believe it deserves to be spreading out
into the world to 100x or 1000x more developers or people wishing to at
least using such jewel for their fun at home, for in-house development,
just to solve some problems that otherwise would require a professional and
very costly setup.

We know that we can already solve lots of such questions about formats
(number formats, date formats, colors, forms, visual appearance in general)
just reverting to scripting. For example, to just have a bottom border
underlined, I can of course just use a line object and have it set where I
want it to be. But is this really how it should be in today's world? I
would rather like to focus on even more abstract levels and not having to
care too much about the daily standard routines.

I am thinking of the ATTRACTION TO THE LANGUAGE especially for NEWBIES,
young people, retired people, who have not much or no experience at all
with computer languages. There is a huge market.

So, I am stretching out beyond numberFormat -- more into Cognitive Load --
another nice discussion we are having.

Why should not retired people have fun developing on a computer? Would not
LiveCode be the only and truly ideal way to learn and enjoy results
immediately? It can be a business by itself. There are growing numbers of
them, millions and millions of retired people who even have all the time to
not allowing their brains to rust. It is "just" a question of proper
worldwide marketing.

Or think of Africa with hundreds of millions of young people who have not
much chance to even touch any computer, even if almost every of their
elderly brothers and sisters owns a cheap Android phone to be proud of.
There are hundreds of millions of young people eager to get involved. And
some of them could even make a living using it. And there are funds with
hundreds of millions just for such young people.

I want the language to shine bright, really be able to compete, and even
when acknowledging that it is probably impossible to win much ground
against Javascript or PHP or Python. The base for such other languages is
too big. The support such languages enjoy from largest companies can not be
argued against.

But still, I feel, that I would love to see LiveCode gaining ground, be the
first choice at least for beginners. (And I say this because I have fun
using it.)

Who will start with the expanded "numberformat" to be shipped with newer
versions? )

Roland

P.S. I hope this contribution message is not too much missing the point --
whic

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