REGEX – Limit only numbers in a string, but allow any number of other specific characters

I currently have this: ^\+?[()\d -]{6,12}

It allows a leading +, allows ()- characters, and numbers. But the total length of the string is limited to 6-12 characters.

I want to achieve the following:

• The length limit only applies to the numeric characters. Any number of the other special characters is allowed

valid:

123456
+123456
+(12) (2)3-5-2

invalid:

1234
1 2 (3) 4
1233451231231

>Solution :

You can use this regex,

^\+?(?:[()\h-]*\d[()\h-]*){6,12}$

Demo

Explanation:

• ^ – Start of string
• \+? – Matches optional plus character
• (?:[()\h-]*\d[()\h-]*) – This basically matches zero or more your non-digits allowed characters followed by a single digit then again followed by zero or more your non-digits allowed characters
• {6,12} allows above text minimum six and maximum 12 times
• $ – End of string

You haven’t mentioned regex dialect, hence if \h (horizontal space) is not supported, then you can use normal space or use \s