regular expressions

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Latest blogosphere posts tagged “regular expressions”

  • Regular Expression Generator and Tester


    CyberNet NewsAuthority Authority: 418
    Windows only I always find myself using regular expressions (a.k.a. regex) in my programming because they are often the best way to parse out bits and pieces from blocks of text. Ever since I discovered the online RegExr that has been my tool of choice, but sometimes it’s nice to have a dedicated application. ...
    1 week ago
  • 10 Java Regular Expression Examples You Should Know


    Programmer LifeAuthority Authority: 125
    Regular expression is an art of the programing, it’s hard to debug , learn and understand, but the powerful features are still attract many developers to code regular expression. Let’s explore the following 10 practical regular expression ~ enjoy 1. Username Regular Expression Pattern ^ [ a - z0 - 9 _ - ...
    1 week ago
  • How to extract HTML Links with regular expression


    Programmer LifeAuthority Authority: 125
    HTML A tag Regular Expression Pattern ( ? i ) a ( [ ^> ] + ) > ( . +? ) a > Extract HTML link Regular Expression Pattern \s * ( ? i ) href\s *= \s * ( \ "([^" ] * \ ")|[^]*|([^" > \s ] + ) ) ; Description ( #start of group # 1 ? i # all checking are case ...
    1 week ago
  • Free Apps for Writing Regular Expressions


    EveryJoeAuthority Authority: 159
    In my recent explorations into the world of writing “regular expressions” I came across a couple of different applications that are supposed to make it easier for you to write and test your expressions. I didn’t have that much luck as the applications weren’t really as helpful as I had anticipated or ...
    1 week ago
  • How to validate HTML tag with regular expression


    Programmer LifeAuthority Authority: 125
    HTML tag Regular Expression Pattern ( "[^" ] * "|[^]*|[^" > ] ) *> Description #start with opening tag " ( # start of group # 1 "[^" ] * " # only two double quotes are allow - " string " | # ..or [^]* # only two single quotes are allow - string | # ..or [^" > ...
    1 week ago
  • How to validate date with regular expression


    Programmer LifeAuthority Authority: 125
    Date Format (dd/mm/yyyy) Regular Expression Pattern ( 0 ? [ 1 - 9 ] | [ 12 ] [ 0 - 9 ] | 3 [ 01 ] ) / ( 0 ? [ 1 - 9 ] | 1 [ 012 ] ) / ( ( 19 | 20 ) \\d\\d ) Description ( #start of group # 1 0 ? [ 1 - 9 ] # 01 - 09 or 1 - 9 | # ...
    1 week ago
  • How to validate Time in 24 Hours format with regular expression


    Programmer LifeAuthority Authority: 125
    Time in 24-Hour Format Regular Expression Pattern ( [ 01 ] ? [ 0 - 9 ] | 2 [ 0 - 3 ] ) : [ 0 - 5 ] [ 0 - 9 ] Description ( #start of group # 1 [ 01 ] ? [ 0 - 9 ] # start with 0 - 9 , 1 - 9 ,00 - 09, 10 - 19 | # or 2 [ 0 - 3 ] # start with ...
    1 week ago
  • How to validate Time in 12 Hours format with regular expression


    Programmer LifeAuthority Authority: 125
    Time in 12-Hour Format Regular Expression Pattern ( 1 [ 012 ] | [ 1 - 9 ] ) : [ 0 - 5 ] [ 0 - 9 ] ( \\s ) ? ( ? i ) ( am | pm ) Description ( #start of group # 1 1 [ 012 ] # start with 10 , 11 , 12 | # or [ 1 - 9 ] # start with 1 , 2 ,...9 ) ...
    1 week ago
  • How to validate IP address with regular expression


    Programmer LifeAuthority Authority: 125
    IP Address Regular Expression Pattern ^ ( [ 01 ] ? \\d\\d ?| 2 [ 0 - 4 ] \\d | 25 [ 0 - 5 ] ) \\. ( [ 01 ] ? \\d\\d ?| 2 [ 0 - 4 ] \\d | 25 [ 0 - 5 ] ) \\. ( [ 01 ] ? \\d\\d ?| 2 [ 0 - 4 ] \\d | 25 [ 0 - 5 ] ) \\. ( [ 01 ] ? \\d\\d ?| 2 [ 0 - 4 ] \\d | 25 [ ...
    3 weeks ago
  • How to validate email address with regular expression


    Programmer LifeAuthority Authority: 125
    Email Regular Expression Pattern ^[_A-Za-z0-9-]+(\\.[_A-Za-z0-9-]+)*@[A-Za-z0-9]+(\\.[A-Za-z0-9]+)*(\\.[A-Za-z]{2,})$ Description ^ – beginning of string [_A-Za-z0-9-]+ – means one or more letter(s) from “a” to “f”, “A” to “Z”, a digit from “0″ to “9″, underscore or dash ...
    4 weeks ago
  • How to validate Hex color code with regular expression


    Programmer LifeAuthority Authority: 125
    Hexadecimal Color Code Regular Expression Pattern ^#([A-Fa-f0-9]{6}|[A-Fa-f0-9]{3})$ Description ^ – Beginning of string # – a “#” symbol is required [A-Fa-f0-9] – means a letter from “a” to “f” or “A” to “Z”, or a digit from “0″ to “9″ {6} – means exactly 6 length ...
    5 weeks ago

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