我可以限制用户在applescript的对话框中不输入特殊字符吗？

Question

我有一个要求，我必须限制用户在他需要输入内容的对话框中输入特殊字符。我只想让数字和字符。谁能告诉我是否有可能？

的代码是这样的：我可以限制他这样做

display dialog "Enter You Name: " default answer "Name" buttons{"Proceed"} 

在默认答案的地方，用户不应该进入任何特殊字符..？

Answer 1

你可以尝试这样的事情：

set allowedLetters to characters of (do shell script "printf \"%c\" {a..z}") 
set allowedNumbers to characters of (do shell script "printf \"%c\" {0..9}") 
set allowedAll to allowedLetters & allowedNumbers & space 

repeat 
    set response to text returned of (display dialog "Enter You Name: " default answer "Name" buttons {"Proceed"} default button 1) 
    try 
     repeat with aCharacter in response 
      if (aCharacter as text) is not in allowedAll then 
       display dialog "Please enter letters and numbers only" buttons {"OK"} cancel button 1 default button 1 
      end if 
     end repeat 
     exit repeat 
    end try 
end repeat 

return response