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C# Searching a textfile

  • 13-03-2007 12:35PM
    #1
    Ziycon
    Registered Users, Registered Users 2 Posts: 1,991 ✭✭✭


    I've hit a wall, i've looked everywhere, anyone have any idea on how to search a text file for keywords and extract them?


Comments

  • #2
    NutJob
    Closed Accounts Posts: 884 ✭✭✭NutJob


    break open MSDN

    Look at File
    look at StreamReader in c#
    look at String in c#


    Use the many string handling functions


  • #3
    Mutant_Fruit
    Closed Accounts Posts: 4,943 ✭✭✭Mutant_Fruit


    Also google for "regex".


  • #4
    Ziycon
    Registered Users, Registered Users 2 Posts: 1,991 ✭✭✭Ziycon


    I was thinking of using the string comparison function in C#, any draw backs from using it?


  • #5
    Mutant_Fruit
    Closed Accounts Posts: 4,943 ✭✭✭Mutant_Fruit


    No drawbacks, it's just Regex can match your entire file, pull out all your results and have them all ready for you to operate on if needed all with two lines:

    Regex r = new Regex("MyMatchString");
    RegexMatchCollection matches = regex.Matches(myString);

    Or something like that. You can do some pretty complex stuff in regex's if you want, or just some bog standard "find all occurances of X".


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