Regular expression that includes all keyboard characters except '~' and ','

Question

How do I write a regular expression that includes all keyboard characters except \'~\' and \',\'?

Answer 1

A related one.

I wasted a lot of time searching, so below is the answer I came up with.

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I wanted all keyboard keys (including space and tab):

// all keys (including space and tab)
var allKeyboardKeysRegex = /^[a-zA-Z0-9~`!@#\$%\^&\*\(\)_\-\+={\[\}\]\|\\:;"'<,>\.\?\/  ]*$/;

// example tests
var nonShiftChars = "`1234567890-=  qwertyuiop[]\asdfghjkl;'zxcvbnm,./ "
var shiftChars = "~!@#$%^&*()_+{}|:\"<>? ";
var someAlphaNumeric = "aAbB12 89yYzZ";

// test with allKeyboardKeysRegex
allKeyboardKeysRegex.test(nonShiftChars);
allKeyboardKeysRegex.test(shiftChars);
allKeyboardKeysRegex.test(someAlphaNumeric);

Output:

true
true
true

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if you want to exclude some characters, then just delete them from above 1st line regex line (allKeyboardKeysRegex).

Example:

// removing '~' and ','
var allKeyboardKeysRegexMinusSome = /^[a-zA-Z0-9`!@#\$%\^&\*\(\)_\-\+={\[\}\]\|\\:;"'<>\.\?\/   ]*$/;

Hope that will help someone.

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Update

List of all chars

"1234567890"
"abcdefghijklmnopqrstuvwxyz"
"ABCDEFGHIJKLMNOPQRSTUVWXYZ"
"~`!@#$%^&*()_-+={[}]|\:;"'<,>.?/    " (last 2 are space & tab here)
"~`!@#$%^&*()_-+={[}]|\\:;\"'<,>.?/ \t\r\n   " (last 2 are space & tab here, all these chars are escaped with \)

Answer 2

This worked for me:

[A-Za-z0-9-]+[ 0-9A-Za-z#$%=@!{},`~&*()'<>?.:;_|^/+\t\r\n\[\]"-]*

Answer 3

Have you tried this?

[^~,]

Now to exclude characters not in keyboard, I believe you have to include them all.

[a-zA-Z0-9\t\n ./<>?;:"'`!@#$%^&*()\[\]{}_+=|\\-]

Which pretty much covers it (even though it looks like a crazy way to get things done). Maybe the problem definition can help you add more stuffs to exclude in the first list [^~,] than try to create a huge list of all keyboard chars.

Answer 4

You didn't say what language/tool you're using, but in Java I would go with this regex:

"[\\p{Print}&&[^~,]]"

That's the intersection of two sets: all printing ASCII characters, and all characters that aren't a tilde or a comma.

Answer 5

I had to do this for regex to work:

"[^~,][^~,]*" 

because [^~,] negates ~ and ,

[^~,]* means in zero or many copies of ~ and , (that is useless for our case)

and by putting [^~,][^~,]* gets you to negate one or more copy of ~ or ,

Answer 6

Reg-Ex for all supported key board chars worked for me :

/^[a-zA-Z0-9.!@?#"$%&:';()*\+,\/;\-=[\\\]\^_{|}<>~` ]+$/

To except '~' and ',' chars :

/^[a-zA-Z0-9.!@?#"$%&:';()*\+\/;\-=[\\\]\^_{|}<>` ]+$/