can slurp do this?

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  • Geoff Cox
    #1

    can slurp do this?

    hello

    Say I am interested in users giving me values for a, b, c and d.

    I have a file with all the results - a very big file!

    user 1
    a: one
    b: two
    d: four

    user 2
    a: one
    b: two
    c: three
    d: four

    etc etc

    and want to create a file

    user a b c d
    1 one two x four
    2 one two three four

    etc etc

    How do I put in an x for c for user 1, indicating that this user
    didn't submit a value for c?

    I slurping the way to do it?

    Cheers

    Geoff
    Tags: None
    • Jürgen Exner
      #2
      Re: can slurp do this?

      Geoff Cox <gcox@freeuk.no tcomwrote:
      >hello
      >
      >Say I am interested in users giving me values for a, b, c and d.
      >
      >I have a file with all the results - a very big file!
      >
      >user 1
      >a: one
      >b: two
      >d: four
      >
      >user 2
      >a: one
      >b: two
      >c: three
      >d: four
      >
      >etc etc
      >
      >and want to create a file
      >
      >user a b c d
      >1 one two x four
      >2 one two three four
      >
      >etc etc
      >
      >How do I put in an x for c for user 1, indicating that this user
      >didn't submit a value for c?
      >
      >I slurping the way to do it?
      No need for slurping in the whole file. If you know the set of all a, b,
      c, d, ... in advance then just go ahead and create the top row. Then
      read in the information for each user and print the row for him.
      If you don't know the set of all a, b, c, ... in advance then read the
      file twice: first pass just to determine the set of a, b, c, ... and the
      second pass as above.

      jue

        Comment

        • Geoff Cox
          #3
          Re: can slurp do this?

          On Wed, 16 Jul 2008 13:51:15 GMT, Jürgen Exner <jurgenex@hotma il.com>
          wrote:
          >Geoff Cox <gcox@freeuk.no tcomwrote:
          >>hello
          >>
          >>Say I am interested in users giving me values for a, b, c and d.
          >>
          >>I have a file with all the results - a very big file!
          >>
          >>user 1
          >>a: one
          >>b: two
          >>d: four
          >>
          >>user 2
          >>a: one
          >>b: two
          >>c: three
          >>d: four
          >>
          >>etc etc
          >>
          >>and want to create a file
          >>
          >>user a b c d
          >>1 one two x four
          >>2 one two three four
          >>
          >>etc etc
          >>
          >>How do I put in an x for c for user 1, indicating that this user
          >>didn't submit a value for c?
          >>
          >>I slurping the way to do it?
          >
          >No need for slurping in the whole file. If you know the set of all a, b,
          >c, d, ... in advance then just go ahead and create the top row. Then
          >read in the information for each user and print the row for him.
          >If you don't know the set of all a, b, c, ... in advance then read the
          >file twice: first pass just to determine the set of a, b, c, ... and the
          >second pass as above.
          >
          >jue
          thanks Jue - will give this a try.

          Cheers

          Geoff

            Comment

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