Some Common Regular Expressions

File validationa

Regular expression to validate file formats for .mp3 or .MP3 or .mpeg or .MPEG or m3u or M3U

Re= /^(([a-zA-Z]:)|(\\{2}\w+)\$?)(\\(\w[\w].*))+(.mp3|.MP3|.mpeg|.MPEG|.m3u|.M3U)$/;

Regular expression to validate file formats for .doc or .docx

Re= /^(([a-zA-Z]:)|(\\{2}\w+)\$?)(\\(\w[\w].*))+(.doc|.docx|.DOC|.DOCX)$/;

Regular expression to validate file formats for .txt or .TXT

Re= /^(([a-zA-Z]:)|(\\{2}\w+)\$?)(\\(\w[\w].*))+(.txt|.TXT)$/;

Regular expression to validate file formats for .jpeg or .JPEG or .gif or .GIF or .png or .PNG

Re= /^(([a-zA-Z]:)|(\\{2}\w+)\$?)(\\(\w[\w].*))+(.jpeg|.JPEG|.gif|.GIF| .png|.PNG)$/;

 ->Regular expression to validate file formats for Name:

Re=^[a-zA-Z''-'\s]{1,40}$

Description:-Validates a name. Allows up to 40 uppercase and lowercase characters and a few special characters that are common to some names. We can modify this list.

->Regular expression to validate file formats for Social Security Number:

Re=^\d{3}-\d{2}-\d{4}$   (Ex:111-11-1111)

Description:-Validates the format, type, and length of the supplied input field. The input must consist of 3 numeric characters followed by a dash, then 2 numeric characters followed by a dash, and then 4 numeric characters.

 ->Regular expression to validate file formats for Phone Number:

Re=^[01]?[- .]?(\([2-9]\d{2}\)|[2-9]\d{2})[- .]?\d{3}[- .]?\d{4}$  (Ex:-123-666-0875)

Validates a U.S. phone number. It must consist of 3 numeric characters, optionally enclosed in parentheses, followed by a set of 3 numeric characters and then a set of 4 numeric characters.

->Regular expression to validate file formats for E-mail:

^(?("")("".+?""@)|(([0-9a-zA-Z]((\.(?!\.))|[-!#\$%&'\*\+/=\?\^`\{\}\|~\w])*)(?<=[0-9a-zA-Z])@))(?(\[)(\[(\d{1,3}\.){3}\d{1,3}\])|(([0-9a-zA-Z][-\w]*[0-9a-zA-Z]\.)+[a-zA-Z]{2,6}))$

Validates an e-mail address.

->Regular expression to validate file formats for URL:

^(ht|f)tp(s?)\:\/\/[0-9a-zA-Z]([-.\w]*[0-9a-zA-Z])*(:(0-9)*)*(\/?)([a-zA-Z0-9\-\.\?\,\'\/\\\+&amp;%\$#_]*)?$

Validates a URL.

->Regular expression to validate file formats for ZIP Code:

^(\d{6}-\d{5}|\d{6}|\d{9})$|^([a-zA-Z]\d[a-zA-Z] \d[a-zA-Z]\d)$ (Ex:123456)

 Description:Validates a U.S. ZIP Code. The code must consist of 5 or 9 numeric characters.

->Regular expression to validate file formats for Password:

(?!^[0-9]*$)(?!^[a-zA-Z]*$)^([a-zA-Z0-9]{8,10})$

Validates a strong password. It must be between 8 and 10 characters, contain at least one digit and one alphabetic character, and must not contain special characters.

->Regular expression to validate file formats for Non- negative integer:

^\d+$

Validates that the field contains an integer greater than zero.

->Regular expression to validate file formats for Currency (non- negative):

^\d+(\.\d\d)?$

Validates a positive currency amount. If there is a decimal point, it requires 2 numeric characters after the decimal point. For example, 3.00 is valid but 3.1 is not.

->Regular expression to validate file formats for Currency (positive or negative):

^(-)?\d+(\.\d\d)?$

Validates for a positive or negative currency amount. If there is a decimal point, it requires 2 numeric characters after the decimal point.