Công cụ chuyển đổi trực tuyến XhCode

Regex Tester và Trình tạo

Regex Tester và Generator giúp bạn kiểm tra biểu thức thông thường của bạn và tạo mã Regex cho JavaScript PHP Go Java Ruby và Python.

Common Regular Expressions

Check digit expressions

  • Digit:
    ^[0-9]*$
  • N digits:
    ^\d{n}$
  • At least N digits:
    ^\d{n,}$
  • m-n digits:
    ^\d{m,n}$
  • Zero and non-zero start digits:
    ^(0|[1-9][0-9]*)$
  • Nonzero number with up to two decimal places:
    ^([1-9][0-9]*)+(.[0-9]{1,2})?$
  • A positive or negative number with one or two decimal places:
    ^(\-)?\d+(\.\d{1,2})?$
  • Positive, negative, and decimals:
    ^(\-|\+)?\d+(\.\d+)?$
  • A positive real number with two decimal places:
    ^[0-9]+(.[0-9]{2})?$
  • A positive real number with 1 to 3 decimal places:
    ^[0-9]+(.[0-9]{1,3})?$
  • A non-zero positive integer:
    ^[1-9]\d*$  or  ^([1-9][0-9]*){1,3}$  or  ^\+?[1-9][0-9]*$
  • A non-zero negative integer:
    ^\-[1-9][]0-9"*$  or  ^-[1-9]\d*$
  • Non-negative integers:
    ^\d+$  or  ^[1-9]\d*|0$
  • Non-positive integer:
    ^-[1-9]\d*|0$  or  ^((-\d+)|(0+))$
  • Non-negative floating-point numbers:
    ^\d+(\.\d+)?$  or  ^[1-9]\d*\.\d*|0\.\d*[1-9]\d*|0?\.0+|0$
  • Non-positive floating-point number:
    ^((-\d+(\.\d+)?)|(0+(\.0+)?))$  or  ^(-([1-9]\d*\.\d*|0\.\d*[1-9]\d*))|0?\.0+|0$
  • Floating point number:
    ^[1-9]\d*\.\d*|0\.\d*[1-9]\d*$  or  ^(([0-9]+\.[0-9]*[1-9][0-9]*)|([0-9]*[1-9][0-9]*\.[0-9]+)|([0-9]*[1-9][0-9]*))$
  • Negative Float:
    ^-([1-9]\d*\.\d*|0\.\d*[1-9]\d*)$  or  ^(-(([0-9]+\.[0-9]*[1-9][0-9]*)|([0-9]*[1-9][0-9]*\.[0-9]+)|([0-9]*[1-9][0-9]*)))$
  • Floating point number:
    ^(-?\d+)(\.\d+)?$  or  ^-?([1-9]\d*\.\d*|0\.\d*[1-9]\d*|0?\.0+|0)$

Check character expressions

  • Alpha-Numeric Characters:
    ^[A-Za-z0-9]+$  or  ^[A-Za-z0-9]{4,40}$
  • All characters with a length of 3-20:
    ^.{3,20}$
  • A string of 26 letters:
    ^[A-Za-z]+$
  • A string of 26 uppercase English letters:
    ^[A-Z]+$
  • A string of 26 lowercase alphabetic characters:
    ^[a-z]+$
  • A string of numbers and 26 letters:
    ^[A-Za-z0-9]+$
  • A string of numbers, 26 letters, or an underscore:
    ^\w+$  or  ^\w{3,20}$
  • input with ^%&',;=?$\":
    [^%&',;=?$\x22]+
  • It is forbidden to input characters with ~:
    [^~\x22]+

Special Needs Expressions

  • Email:
    ^[a-zA-Z0-9_.+-][email protected][a-zA-Z0-9-]+\.[a-zA-Z0-9-.]+$
  • URL or Domain name:
    ^(([^:/?#]+):)?(//([^/?#]*))?([^?#]*)(\?([^#]*))?(#(.*))?
  • Date (MM/DD/YYYY)/(MM-DD-YYYY)/(MM.DD.YYYY)/(MM DD YYYY):
    ^(0?[1-9]|1[012])[- /.](0?[1-9]|[12][0-9]|3[01])[- /.](19|20)?[0-9]{2}$
  • 12 months of the year(01~09 1~12):
    ^(0?[1-9]|1[0-2])$
  • 31 days a month(01~09 1~31):
    ^(0[1-9]|[12][0-9]|3[01])$
  • Password:
    ^.*(?=.{6,})(?=.*d)(?=.*[A-Z])(?=.*[a-z])(?=.*[[email protected]#$%^&*? ]).*$
  • US Phone Numbers
    \b\d{3}[-.]?\d{3}[-.]?\d{4}\b
  • US Zip code
    ^[0-9]{5}(?:-[0-9]{4})?$
  • Slug
    ^[a-z0-9-]+$
  • All the special characters need to be escaped
    /[\-\[\]\/\\\{\}\(\)\*\+\?\.\^\$\|]/
  • xml file:
    ^([a-zA-Z]+-?)+[a-zA-Z0-9]+\\.[x|X][m|M][l|L]$
  • Regular expressions for Chinese characters:
    [\u4e00-\u9fa5]
  • Double-byte characters:
    [^\x00-\xff] 
  • Blank line:
    \n\s*\r    (be used to delete blank lines)
  • HTML tags:
    <(\S*?)[^>]*>.*?|<.*? />
  • The leading and trailing whitespace character:
    ^\s*|\s*$ or (^\s*)|(\s*$)
  • IP address:
    ((?:(?:25[0-5]|2[0-4]\d|((1\d{2})|([1-9]?\d)))\.){3}(?:25[0-5]|2[0-4]\d|((1\d{2})|([1-9]?\d))))