How to limit data entry to only lowercase letters?

[cooper_tim13]

I am making a two-player hangman game, and I have set a limit of 10 characters which is working fine:

Code: Select all

on keyDown
   if the length of me = 10 then
      beep
      else
         pass keyDown
         end if
end keyDown

However, when I try to limit the character input to only lowercase characters, nothing seems to happen. I can still type any character I want.

Code: Select all

on keyDown inkey
   if inkey is in "abcdefghijklmnopqrstuvwxyz" then
      pass keyDown
   else
      beep
   end if
end keyDown

How do I fix this? Thankyou.

[paul_gr]

use something like this in the field script

-------------------------------------------------------
on keyDown theKey
if matchText(theKey,"[A-Z]") is false then
pass keyDown
end if
end keyDown
-------------------------------------------------------

Will block capital letters.

Paul

[cooper_tim13]

Paul, sorry but this did not do anything. I am still allowed to type in any character.

Also, I want to block all keys, including the spacebar, from being pressed except for a-z, not just uppercase A-Z

Thankyou,
Cooper.

[jmburnod]

Hi Cooper,
It works with casesensitive = true

Code: Select all

on keyDown inkey
   set the casesensitive to true 
   if inkey is in "abcdefghijklmnopqrstuvwxyz" then
      pass keyDown
   else
      beep
   end if
end keyDown

Best regards
Jean-Marc

[Dixie]

cooper_tim13...

The script posted by 'paul_gr' does work, and is a very nice solution to the problem you wanted solving. I would suggest that you look in the dictionary and read the entry for 'matchText'...

[bn]

actually Cooper wanted nothing but lowercase letters a-z, so paul_gr's example would be

Code: Select all

on keyDown theKey
   if matchText(theKey,"[a-z]") is true then
      pass keyDown
   end if
end keyDown

Kind regards
Bernd

[Dixie]

Hi Bernd...

Paul_gr's script does give lowercase and not uppercase !...
His script is correct as it stands

[bn]

except that it also accepts number exclamation marks punctuation and so on.

Kind regards
Bernd

[Dixie]

Bernd... You are splitting hairs.
'paul_gr's' script did just what the OP asked for when he replied... the OP did not ask for other things to be taken into consideration until later on in the post.

[bn]

You are splitting hairs.

reminds me of:

Q: "How are you?"
A: "Fine like a frog hair split by four"
Q: "I did not know frogs had hair?"
A: "See, that's how fine I am"



Kind regards
Bernd

[dunbarx]

Ho, ho, ho.

Code: Select all

on mouseUp
   set the wholeMatches to "false"
   if "a" = "A" then answer "Same"
   
   set the wholeMatches to "true"
   if "a" = "A" then answer "Same"
end mouseUp

A little knowledge is often a dangerous thing. Right out of the gate, know that if you limit a selection to, say, "a", LC will only look at the "character", not the ASCII value of that character. And the "wholeMtches" don't enter into it. So that methodology is the wrong one.

Craig Newman

[dunbarx]

Ho, ho, ho.

Code: Select all

on mouseUp
   set the wholeMatches to "false"
   if "a" = "A" then answer "Same"
   
   set the wholeMatches to "true"
   if "a" = "A" then answer "Same"
end mouseUp

A little knowledge is often a dangerous thing. Right out of the gate, know that if you limit a selection to, say, "a", LC will only look at the "character", not the ASCII value of that character. And the "wholeMtches" don't enter into it. So that methodology is the wrong one.

Craig Newman

[Dixie]

WHAT ?!....

[dunbarx]

Dixie.

What "what"?

I wanted to make the point that one could compare the ASCII value of "a' with the ASCII value of "A", and get the fact that they are different. But not be able to compare "a" with "A" directly.

"MatchText" is a regex gadget, and though is likely the best solution, may be daunting for a new user.

Craig