regex - Java Regexp pattern check -

pattern

^\\d{1}-\\d{10}|\\d{1,9}|^twc([0-9){12})$

should validate of these
1-23232445
1-232323
1-009121212
12
12222
twc12222
twc1222324

when test twc pattern doesn't match, have added "|" consider or condition , have numbers 0-9 limiting 12 digits. missing ?

twc([0-9)

i think might not working??

you need

twc([0-9]{12})

complete answer...

(\d{1}-\d{1,12})|^twc(\d{1,12})$

even nicer answer ..

^(\\d-|twc|)(\\d{1,12})$ // syntax believe match needs.

tested :)

^([0-9]-|twc|)([0-9]{1,12})$ // or  ^(\d-|twc|)(\d{1,12})$

regular expression visualization

breakdown

this denotes start of string

\d or [0-9]

denotes 1 character of numbers 0 through 9 (note \d might not work in lanagues or require different syntax!)

is or

{1,12}

will accept particular pattern 1-12 times instance in code patternw ould \d or [0-9]

is end of line

this checks if line contains [0-9] - after,twc, or nothing space account nothing being there @ start reads 12 digits. should work cases.

testing

edit code.

all unit tests. click on "java" if want see them :0

note:

you need @ syntax of using in cases might need \ things in order them work.. in c++/c 2 // in order these work please wary particular syntaxes.

Code wiki