Unable to get regex working -


i have third party application lets me enter regular expression validate user input in text box. need user input data in format c:64gb, f:128gb h:32gb. regex wrote:

\b[a-z]{1}[:]?\d*(gb|gb)\b

this regex works fine validates first block. if write c:64gb f:128, marks input valid. not check f:128 makes input invalid. should c:64gb f:128gb.

when change regex ^\b[a-z]{1}[:]?\d*(gb|gb)\b$, allows me enter c:64gb.

what doing wrong here?

you can use regex:

^(\w*[a-za-z]:?\d+(?:gb|gb)\w*)+$

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