Construct a Regex matching a password [closed] - regex

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Closed 9 years ago.
How would you construct a regex matching a password that must consist of 6 to 16 characters and contain at least one number or special character?

You need to define what constitutes special characters for you.
Something like this regex should work:
(?=^.*?[\d#;:'"()`~#!%$&=-])^.{6,16}$

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I want regex for int<any no of spaces>,<any no of spaces>int<any no of spaces>,<any no of spaces>int [closed]

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Closed 9 years ago.
and there are exactly 3 integers. No floats allowed. No characters allowed. Just integers.
The pattern for that is this: \d+\s*,\s*\d+\s*,\s*\d+
Matches three digits with any number of spaces

What characters should this regex cover [closed]

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Closed 9 years ago.
\\s*[\\-]?[\\d]{1,3}\\s+[\\-]?[\\d]{1,3}\\s+[\\-]?[\\d]{1,3}\\s+[\\-]?[\\d]{1,3}\\s*
I have this regex for taking in 4 coordinates which are whole numbers (positive or negative). Can you please suggest any bugs in this regex?
If it's a Java regex, then it's correct for matching a string that contains four integer numbers between -999 and 999, separated by whitespace. It's very ugly, though, and could be simplified a lot:
\\s*(?:-?\\d{1,3}\\s+){3}-?\\d{1,3}\\s*
If it's not Java, then you only need one backslash at a time (but you might need other syntax, depending on your language).

Design a Regular expression for 10 alphanumeric digits [closed]

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Closed 9 years ago.
I want a regular expression for using it in ASP.NET. It should be of 10 alphanumeric digits. The first 5 characters are letters, next 4 numerals and last character letter.
that should do the trick
^[a-zA-Z]{5}[0-9]{4}[a-zA-Z]$

Regex letters can't repeat [closed]

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Closed 10 years ago.
Need regex for 0|1, except the letters can't repeat.
So:
101010 - valid
010101 - valid
110011 - invalid
Well, this is pretty trivial:
(?=[01])0?(?:10)*1?
1?(01)*0? // matches alternating 1s and 0s
^1?(01)*0?$ // same as above but only whole strings

Regular expression must end with gmail.com or start with 1234 Is Either or Possible? [closed]

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Closed 10 years ago.
Can you specify that it must do one or the other?
If it's an inclusive OR, sure:
/(?:^1234|gmail\.com$)/
If it's an exclusive OR, the simplest way is to do it with two expressions: test whether it matches exactly one of /^1234/ or /gmail\.com$/.