Regular expression- setting the max length of a particular word

Question

hey all,

I have been creating a pattern for a url which is something like (https?://)?(www\.)?[a-zA-Z](\.)[a-zA-Z]+(\.)[a-zA-Z]+(/)[a-zA-Z0-9]+(/)[a-zA-Z0-9]. Now the string that matches this pattern will be something like https://thevitruvianAnalogy.myname.com/sites/subsite

Now i know how to limit the size of this string by concatenating something like {30,100} at the end of this pattern which would mean that this string should be atleast 30 letters long and at max 100 letters.

NOW THE Question is how could i restrict the length of a single word. Like in the above example, how can i check the length of myname or sites or subsite, one of them but not all of them.

Regards,

Nishant

Answer 1

Would you please check-out below thread

http://social.msdn.microsoft.com/Forums/en-US/Vsexpressvb/thread/e6411823-f932-4cc2-a8b3-e409df91ea68

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Regards,
Ahmed Ibrahim
SQL Server Setup Team
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Answer 2

Just need to add {0,50} for example. This will define that user can digit until 50 digits, afther that regex will get false value.

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Web Developer

Answer 3

Thank you guys. I think i got the answer. It was in my knowledge all along but i wasnt able to test it. If in the following pattern you want to check the value of the last word (https?://)?(www\.)?[a-zA-Z](\.)[a-zA-Z]+(\.)[a-zA-Z]+(/)[a-zA-Z0-9]+(/)[a-zA-Z0-9] then all we need to do is put that part of the expression in brackets and do the following ([a-zA-Z0-9]{5,30}) i.e. add the following {a,b} where a is the min length and b is the max length of that particular word.

Regards,

Nishant