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Regular expression to extract information

anjie451 -  
blux Posted messages 2046 Registration date   Status Moderator Last intervention   -
Hello,

I'm looking for a formula to extract all spaces (blanks) from a text, and for that, I need to use regular expressions like [a-z A-Z]* [F f]red[a-z] which means any string containing the word Fred

Can someone help me???? I'm lost!
Thank youuuu
Configuration: Windows XP Firefox 3.5.7

4 answers

  1.
    blux Posted messages 2046 Registration date   Status Moderator Last intervention   3 455
     
    Hi,

    what do you mean by 'extracting'?

    --

    A+ Blux 
     "The idiots, they dare to do anything. That's how we recognize them."
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  2. ziedzico Posted messages 438 Status Member 112
     
    Do you want to count how many words are in the text?
    In which language?
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  3. anjie451
     
    Extracting means spotting in a text all occurrences of my choice. In this case, therefore, the white spaces.
    There is no specific language; we call this information extraction using regular expressions or patterns.
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    1. blux Posted messages 2046 Registration date   Status Moderator Last intervention   3 455
       
      I know how regular expressions work, but I still don't understand the meaning of your question: do you want to count them?

      A regular expression can be used to delete characters, replace them, find them, or even assign them to variables for use in the same expression...

      --

      A+ Blux 
       "Fools dare anything. It's even how we recognize them."
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      1. anjie451 > blux Posted messages 2046 Registration date   Status Moderator Last intervention  
         
        Yes and no, I don't really need to know the number of spaces in my text, I just need to find the formula that highlights them in TextPad for example. I was thinking of this formula [^ ]+.
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      2. blux Posted messages 2046 Registration date   Status Moderator Last intervention   3 455 > anjie451
         
        [^ ]+
        This is something that starts with several spaces...

        In textpad, you search, and in the dialog box, you check regular expression and you can put either a space or a space in brackets (for readability).

        Note that the [] are there to indicate a choice range.

        --

        See you Blux           
         "The idiots, they dare everything. It's even how we recognize them"
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      3. anjie451 > blux Posted messages 2046 Registration date   Status Moderator Last intervention  
         
        So to identify blanks in a text, would it be [ ] or not?
        sorry, I'm just starting out...
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      4. blux Posted messages 2046 Registration date   Status Moderator Last intervention   3 455 > anjie451
         
        A blank is enough, it's just another character...

        --

        A+ Blux 
         "Fools dare everything. It's even how we recognize them"
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  4. ziedzico Posted messages 438 Status Member 112
     
    You need a LEX or FLEX on Linux to compose regular expressions and call a C method to count occurrences.
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