Try statements acting up in AppleScript - applescript

Question

I'm trying to figure out try statements in AppleScript. I got it to compile, but it doesn't do what I want it to do.
try
do shell script "cat " & passData
on error
display dialog "Create a password to protect this file. After creating the password, you will need to enter it every time in order to access the app." default answer "" buttons {"Cancel", "OK"} default button 2 with hidden answer
set pass1 to text returned of result
display dialog "Confirm the password you entered." default answer "" buttons {"Cancel", "OK"} default button 2 with hidden answer
set pass2 to text returned of result
if pass1 is pass2 then
set setPass to pass2
set passSalt to random number from 10000000 to 99999999
do shell script "echo " & setPass & " | shasum -a 512 | awk '{print $1}'"
set passHash to result
set cHash1 to random number from 10 to 25
set cHash2 to random number from 26 to 50
set cHash3 to random number from 51 to 75
set cHash4 to random number from 76 to 99
set hBlock1 to characters cHash1 through cHash2 of passHash
set hBlock2 to characters cHash3 through cHash4 of passHash
set finalHash to hBlock1 & passHash & hBlock2
do shell script "echo " & passSalt & return & cHash1 & return & cHash2 & return & cHash3 & return & cHash4 & " > " & passData
do shell script "echo " & finalHash & " > " & appPath & "Contents/Resources/FinalHash.txt"
else
display dialog "The passwords didn't match. Restart the application and try again." buttons {"OK"} default button 1
quit
end if
quit
end try
I want the application to quit if the text entered in the first and second dialog boxes don't match, but it just goes on to the rest of the code. I also want the application to quit after it does all the hashing mumbo jumbo if the text entered in the boxes match, but it doesn't do that either. How can I fix this? I suspect it has something to do with the try statements.
Edit: when I said it goes on to the rest of the code, I meant when I exported it as an app. It works correctly in the editor but in the app it continues to the rest of the code.

Answer 1

You put an end try on the end of your script, but there's no opening try to close off.
In the code below I've removed the end try. In addition to that, I've added tell application "finder" and end tell to prevent your script editor from quiting.
Tried it and it works fine here.
tell application "Finder"
display dialog "Create a password to protect this file. After creating the password, you will need to enter it every time in order to access the app." default answer "" buttons {"Cancel", "OK"} default button 2 with hidden answer
set pass1 to text returned of result
display dialog "Confirm the password you entered." default answer "" buttons {"Cancel", "OK"} default button 2 with hidden answer
set pass2 to text returned of result
if pass1 is pass2 then
set setPass to pass2
set passSalt to random number from 10000000 to 99999999
do shell script "echo " & setPass & " | shasum -a 512 | awk '{print $1}'"
set passHash to result
set cHash1 to random number from 10 to 25
set cHash2 to random number from 26 to 50
set cHash3 to random number from 51 to 75
set cHash4 to random number from 76 to 99
set hBlock1 to characters cHash1 through cHash2 of passHash
set hBlock2 to characters cHash3 through cHash4 of passHash
set finalHash to hBlock1 & passHash & hBlock2
do shell script "echo " & passSalt & return & cHash1 & return & cHash2 & return & cHash3 & return & cHash4 & " > " & passData
do shell script "echo " & finalHash & " > " & appPath & "Contents/Resources/FinalHash.txt"
else
display dialog "The passwords didn't match. Restart the application and try again." buttons {"OK"} default button 1
quit
end if
end tell

Answer 2

Never mind, I found out a way that works! :)
Between the try and on error, I added set quitFunction to "0". Then between the on error and end try I added set quitFunction to 1. After the end try I made the script test if the variable quitFunction is 1. If it is, it quits and if it isn't, it doesn't quit.