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Arbitrary Mask Question

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I'm hoping someone can me clean up the following Arbitrary Mask javascript I'd like to use on a form. My goal is to change it to just 3 alphabet letters. I can't seem to get the script right. Here is where i'm at with this and it's not working.

if(event.willCommit){
var input = event.value;
var pattern = /^(|\[A-Za-z]{3}$|$/);
if (!pattern.test(input)) {
event.rc = false;
app.alert("Input must be either 3 alphabet letters, or blank.");}}

Thank you in advance for any ideas on how to make this work!

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JR BoulayCorrect answer

Community Expert

You don't need JavaScript to do this:

A - Accepts only letters (A–Z, a-z).
X - Accepts spaces and most printable characters, including all characters available on a standard keyboard and ANSI characters in 32–126 and 128–255.
O - The letter “O” accepts alphanumeric characters (A–Z, a-z, and 0–9).
9 - Accepts only numeric characters (0–9).

Acrobate du PDF, InDesigner et Photoshopographe

JR Boulay

Correct answer

Community Expert

You don't need JavaScript to do this:

A - Accepts only letters (A–Z, a-z).
X - Accepts spaces and most printable characters, including all characters available on a standard keyboard and ANSI characters in 32–126 and 128–255.
O - The letter “O” accepts alphanumeric characters (A–Z, a-z, and 0–9).
9 - Accepts only numeric characters (0–9).

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Acrobate du PDF, InDesigner et Photoshopographe

stepheng54012748Author

Known Participant

Yes! This is the answer and THANK YOU!!

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try67

Community Expert

Use this:

var pattern = /^[a-z]{3}$/i);

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stepheng54012748Author

Known Participant

Here is what i input and it did not work.

if(event.willCommit){
var input = event.value;
var pattern = /^[a-z]{3}$/i);
if (!pattern.test(input)) {
event.rc = false;
app.alert("Input must be either 3 alphabet letters, or blank.");}}

Translate

try67

Community Expert

Where did you place it? Under which event?

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