how to add only email adress in field and load it at startup

[sphere]

Hello,
thanks everyone for all these beautifull solutions we can find here.
So i'm new to Livecode, i have been busy with flowstone, but though there is Ruby in it, still you can't do all you want to do.
And this LiveCode seems easier than Ruby. But i'm stock with some questions, and i will not set them here all at once.
I searched a lot but can't find.

I have a simple input field. I can put in some text and when i push the button it is being saved to a local text file which i use as a kind of database (I don't want to use a real database on a server). So far so good.
Also new lines adding goes well. And reading the file in a scrolling field right after it has been saved also is working.

1. How do i get it that only email adresses can be added and nothing else?
This is the button script:

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on mouseUp
put field "New Email Adress" & cr before field "email list"
    put field "email list" into URL ( "file:" & specialFolderPath("Documents") & slash & "emailadresses.txt" )
end mouseUp

2. how should the script be in the stack to open the text file when starting? (the first time it does not exist of course, the text file is made after first input)
i have this but its not working

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if exist then put URL ( "file:" & specialFolderPath("Documents") & slash & "emailadresses.txt" ) into field "List of email addresses"

Thanks for any help on this

[sphere]

ok
first part i allready have (it was actually quite simple)
i added before the put lines this :

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if field "New Email Adress"contains "at blabla dot kom" then

and after the put lines this

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else answer "Only Email adresses ending on at blabla dot kom are allowed."

[Klaus]

Hi sphere,

1. welcome to the forum!

2. Do this:

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on openstack 
## or opencard
  ## Create the filename:
  put specialFolderPath("Documents") & "/emailadresses.txt" into tFile

  ## Now check its existence and act accordingly if present:
  if there is a file tFile then
    put url("file:" & tFile) into tMailAddresses
    ## Do something with tMailAddresses
  end if
end openstack

Check these great stacks to get the basics of Livecode:
http://www.hyperactivesw.com/revscriptc ... ences.html


Best

Klaus

[sphere]

Hello Klaus,

Thanks for the Welcome !

I allready really love it to play and work with Livecode

I tested your code and changed to the actual names of the files and it runs perfectly ! Thanks very much.

Up to the next step. And if i can't figuring it out by altering some codes and examples i will search for it and alternatively create a new topic.

Thanks for helping me out.

[zaxos]

Code: Select all

on mouseUp
   if fld "New Email Adress" contains "@" then
      if the borderColor of fld "New Email Adress" is "red" then set the borderColor of fld "New Email Adress" to "0,0,0"
      put field "New Email Adress" & cr before field "email list"
   else
      set the borderColor of fld "New Email Adress" to "red"
   end if
end mouseUp

[sphere]

Thanks Zaxos

also very nice!

thank you !