Hiya. It's been a while. x) Right now, I'm having a problem testing if a player input matches a regular expression. I've tried adding a JavaScript script and then entering

var theaterBool = /^\d{4}$/.test(theaterAns);

That doesn't seem to work.

Every time I save and try to run it, the JavaScript code changes to

var (theaterAns)

.

So I'm just wondering if there's any way to check if a string matches a regular expression. Btw, I'm using the online version of Quest, 'cause right now I'm on a linux computer. Thanks!

Perhaps this will work: IsRegexMatch

http://docs.textadventures.co.uk/quest/ ... match.html

Thanks for the quick reply! I tried adding the script that calls the function IsRegexMatch with the parameters /^\d{4}$/ and theaterAns, but when I tried playing the game and testing the script, there was an error: "Error running script: Missing ')'".

Is there any other way I should enter the regular expression?

Here's a pic for reference.

And of the problem...

Isn't this an easier way?

msg("what is the password?")
Get input {
    If { result = ("1234")
    // run password correct script
    } else {
    // run password incorrect script
    }
} 

Not sure if I've done that code entirely right lol.

Could you click the button "code view" and post a picture of the code please?

Silver wrote:Isn't this an easier way?

msg("what is the password?")
Get input {
    If { result = ("1234")
    // run password correct script
    } else {
    // run password incorrect script
    }
} 

Yeah, I guess so. But I'm trying to get it so that the keypad only accepts 4 digits, and if they type anything other than that it should come up with an error like, "The keypad only accepts 4 digits."

But using your code with a general error, something like "That doesn't work", would be easier. I do want to know how to properly use the "IsRegexMatch" function, though.

Pertex wrote:Could you click the button "code view" and post a picture of the code please?

I think the pattern must be quoted: "/^\d{4}$/"

RedTulip wrote:
Yeah, I guess so. But I'm trying to get it so that the keypad only accepts 4 digits, and if they type anything other than that it should come up with an error like, "The keypad only accepts 4 digits."

Ah right, I didnt think of that.

there's probably a way to check if a string is over four characters.

Pertex wrote:I think the pattern must be quoted: "/^\d{4}$/"

Ah. I'll try that.

Silver wrote:there's probably a way to check if a string is over four characters.

I guess I could use LengthOf and IsInt... I'll check if Pertex's reply works, first.

Sorry, I'm forever thinking out loud.

Odd. :/

Silver wrote:Sorry, I'm forever thinking out loud.

Lol. x)

Pertex wrote:I think the pattern must be quoted: "/^\d{4}$/"

You also need to remove the / delimiters. And you also need to escape the backslash.

msg(IsRegexMatch("^\\d{4}$", "1234"))
msg(IsRegexMatch("^\\d{4}$", "12345"))
msg(IsRegexMatch("^\\d{4}$", "1w234"))

This will print:

True
False
False

Tried using an if expression instead.

Here's the code view, if you want:

theaterAns = result
if (IsRegexMatch ("/^\d{4}$/", result) = true) {
  msg ("Yay!")
}
else {
  msg ("Still yay!")
}

And now this error comes up after entering some digits:

Try this:

theaterAns = result
if (IsRegexMatch ("^\\d{4}$", result) = true) {
  msg ("Yay!")
}
else {
  msg ("Still yay!")
}

Quest handles RegExs as strings, so you need to delimit the RegEx with double quotes, but therefore you do not need the forward slashes. Also, because this is a string, where backslash indicates an escape code, you need to escape the backslash with a second backslash.

The Pixie wrote:Try this:

theaterAns = result
if (IsRegexMatch ("^\\d{4}$", result) = true) {
  msg ("Yay!")
}
else {
  msg ("Still yay!")
}

Quest handles RegExs as strings, so you need to delimit the RegEx with double quotes, but therefore you do not need the forward slashes. Also, because this is a string, where backslash indicates an escape code, you need to escape the backslash with a second backslash.

Thank you so much! This worked. I'll go mark this solved. Also, thanks to everyone who's replied. <3

Edit: Sorry, I seem to have overlooked your previous post. Just saw it right now. xD

within quest, you can do it this way too (as this 'regex' and etc code symbol fancy stuff is still too confusing for me ~ I'm a noob trying to learn to code, hehe), for example:

Quest's 'Coding Bible' links:

http://docs.textadventures.co.uk/quest/

http://docs.textadventures.co.uk/quest/ ... notes.html

http://docs.textadventures.co.uk/quest/ ... quest.html
http://docs.textadventures.co.uk/quest/ ... ments.html

http://docs.textadventures.co.uk/quest/elements/
http://docs.textadventures.co.uk/quest/types/

http://docs.textadventures.co.uk/quest/functions/ (category order)
http://docs.textadventures.co.uk/quest/ ... tions.html (alphabetical order)
http://docs.textadventures.co.uk/quest/scripts/

yes, as you already found out, there's: LengthOf ( http://docs.textadventures.co.uk/quest/ ... gthof.html )

<function name="first_name_function">
  msg ("What is your (first) name?")
  msg ("(10 characters max)")
  get input {
    // quest's engine automatically (hiddenly) sets a built-in variable for you when using the 'get input' and 'show menu' Functions: result = your_typed_in_input
    if (LengthOf (result > 10) ) {
      ClearScreen
      first_name_function
    } else {
      player.first_name_string = result
      ClearScreen
    }
  }
</function>

--------------------------

'IsInt' is just a check upon whether the text is able to be an Integer Attribute:

text~variable's value: 1 -> yes, this CAN be converted into an Integer Attribute
text~variable's value: 1.5 -> no, this can NOT be converted into an Integer Attribute
text~variable's value: m -> no, this can NOT be converted into an Integer Attribute

<function name="age_integer_function">
  msg ("What is your age?")
  get input {
    if (IsInt (result)) {
      player.age_integer = ToInt (result)
    } else {
      age_integer_function
    }
  }
</function>

so, it as seen above, has nothing to do with an input's character~symbol length.

------------------------------

@Silver:

you're getting a bit confused with the text processor format and regular quest format

Silver: incorrect syntax

msg("what is the password?")
Get input {
    If { result = ("1234")
    // run password correct script
    } else {
    // run password incorrect script
    }
}

correct syntax:

Script_or_Function_command (if needed: Object_name.Attribute_name OPERATOR Value_or_Expression) { scripting }

msg("what is the password?")
Get input {
    If (result = "1234") {
    // run password correct script
    } else {
    // run password incorrect script
    }
}

^^
Thanks for the input. x) I needed IsInt 'cause the key pad is only supposed to accept four numbers.

Regular expression does work better, the script ends up quite a bit shorter.

Yeah it's not quite muscle memory yet, HK. Because the curly braces came straight after the else I assumed it comes after the if, but that ignores the condition.

@Silver:

I know, just trying to help (re-in-force) with that muscle memory
(my apologizes if it came off as nagging~correcting, didn't think about this before I posted it, my bad)

(Someday, I'll get the muscle memory for these real languages that use all these symbols~characters, to shorten the amount of coding~writing needed, as RedTulip+Pixie+Jay+etc real coders, understands, but right now, it's totally alien for me, even if I understand that the symbols~characters are just variables... it's just too much for my brain to remember, understand, and keep straight. So, for now, I still really like quest's XML, as it doesn't use that many symbols~characters, and thus I've been able to understand and learn it, and thus the basics of coding in general as well, hehe)

Nah, I know you're not nagging. Or, if you are, someone has to! I'm at the stage, and will be for a while, where bad habits can creep in.

RedTulip wrote:Thanks for the input. x) I needed IsInt 'cause the key pad is only supposed to accept four numbers.

indeed for that scenario, using quest's coding, you'd need both actually:

'IsInt' + 'LengthOf'

an example of another scenario that would need both of them:

<function name="year_of_birth_integer_function">
  msg ("What is your year of birth?")
  get input {
    if (IsInt (result) and LengthOf (result) = 4) {
      player.year_of_birth_integer = ToInt (result)
      ClearScreen
    } else {
      ClearScreen
      year_of_birth_integer_function
    }
  }
</function>

-----

RedTulip wrote:Regular expression does work better, the script ends up quite a bit shorter.

ya, 'regex' and other languages' symbol~character usage is much better~efficient (less writing~coding), once you learn it well (unlike me currently).

-----

quest does also have:

IsInt (specifically for checking on the, text ~ variable's value, being integers: -1, 0, 1): http://docs.textadventures.co.uk/quest/ ... isint.html

IsDouble (Double=Float=Floating Point = decimal numbers, same as 'IsInt' otherwise): http://docs.textadventures.co.uk/quest/ ... ouble.html

IsNumeric (this is a bit confusing with 'IsInt'. As 'IsNumeric' is basically: 'is non-alphabetical', though I'm not sure if it can check 'two' as being 2): http://docs.textadventures.co.uk/quest/ ... meric.html

ToString: http://docs.textadventures.co.uk/quest/ ... tring.html

ToInt: http://docs.textadventures.co.uk/quest/ ... toint.html

examples of the 'To' converters:

player.strength_integer = 100
player.strength_string = "100"

player.strength_integer = ToInt (player.strength_string)
player.strength_string = ToString (player.strength_integer)

and etc cool stuff (quest is a very well built engine, hehe)