Need Regular Expressions

Hi Everyone,
I'm new to Regular expressions. I need individual regular
expressions
for each item below:
1. Regular expression for "String must contain
lowercase uppercase
numbers and at least one spe-cial char
(!£$%&*#+-<>)".
2. Regular expression for "The first n characters must
include a
special char".
3. Regular expression for " First 8 characters must not
be 'mosfiq' ".

Is there anyone who can help me on creating these three
regular
expressions.

Thanks in Advance.
Regards.
Mosfiqur Rahman


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Hi Guys,
I have found solutions for the first two:
1. Regular expression for "String must contain
lowercase uppercase
numbers and at least one spe-cial char
(!£$%&*#+-<>)":
regex:
^(?=.*d)(?=.*[a-z])(?=.*[A-Z])(?=.*[<>!#$&
-+%*]).*$

2. Regular expression for "The first n characters must
include a
special char".
regex: ^w{0,3}(?=W{1,4}).*$


Now, for the 3rd one I got one solution which still doesn't
fullfil my
purpose. For example assume the following words to build the
regular
expression: "First 8 character must include 'dav'
". The expression
that I came up with is following:
^w{0,5}(?=(dav)).*$
The expression works fine. The only problem is we need to do
some
calculation here. For {0,5}, here 5 comes from the equation
{8 -
Length(dav)3}. My problem is here dav is a username which
may change
always at runtime. So I actualy require an expression which
will
specify the exact number of character without any math {0,8
in my
example}.
Can any one help me on this.

Regards,
Mosfiqur Rahman

On Oct 15, 2:24 pm, "Mosfiq" <mosfi...gmail.com> wrote:
> Hi Everyone,
> I'm new to Regular expressions. I need individual
regular expressions
> for each item below:
> 1. Regular expression for "String must contain
lowercase uppercase
> numbers and at least one spe-cial char
(!£$%&*#+-<>)".
> 2. Regular expression for "The first n characters
must include a
> special char".
> 3. Regular expression for " First 8 characters
must not be 'mosfiq' ".
>
> Is there anyone who can help me on creating these three
regular
> expressions.
> 
> Thanks in Advance.
> Regards.
> Mosfiqur Rahman


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I'm doing something similar with hostmonster.com.  they
allow me to
write filters with the construct: "subject that matches
regex xxx is
discarded" where xxx is the regex expression.  using a
code word such
as "007" which the filter would look for, i tried
^Subject:(?!.*007)
but it doesn't work.  basically, i want to allow only emails
with 007
somewhere on the subject line.  any ideas?


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