check for repeating digits

[sdlangers]

hi,

i have a 10 digit random number generated

i want to check that there are the same digit is not in the number 3 times in a row

e.g. 1224526890 is ok, but 1222426890 is not ok because 2 is there 3 times in a row

i guess some type of regular expression can do this, but i dont know how to use these or which one to use

thanks for your help

 

[HJB417]

0{3}|1{3}|2{3}|3{3}|4{3}|5{3}|6{3}|7{3}|8{3}|9{3}

 

[sdlangers]

0{3}|1{3}|2{3}|3{3}|4{3}|5{3}|6{3}|7{3}|8{3}|9{3}

perfect - thanks.

 

[IngisKahn]

A bit more compact:
(\d)(?:\1){2}

 

[HJB417]

gj ik

=]