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Operation converted to code

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    Operation converted to code

    Hi,

    I have an operation that I converted to code quite some time back.
    When I originally created the Operation, I used three fields as my "Group By" expression like this: OFFER-CATEGORY+" "+SOURCE, because I wanted a space between the first two fields and the last one.

    Based on the recorded code, I can't seem to get the space to show up when A5 concatenates these fields. I'm sure you code gurus will figure this out instantly, but to me it is a big mystery. I don't know why all these backslashes and quotes are placed where they are. I've tried changing them, but I can't get the space to show up without giving me all the blank spaces within the Source field.

    Here is the code:

    sum.db = summarize_db_name
    sum.db_dd_delete = .F.
    sum.result_overwrite = .F.
    sum.order = "TRIM(OFFER)-CATEGORY+\" \"-SOURCE"
    sum.filter = ""
    sum.options = "I"
    sum.fields = 12
    sum.field1 = "trim(Offer)-Category+\" \"-Source"

    #2
    Re: Operation converted to code

    I can' t tell what your desired result should be but see if

    "TRIM(OFFER)-trim(CATEGORY)+\" \"+trim(SOURCE)"

    does what you want.

    I haven't used the "-" with character string concatenation much so I just read up on it. Using the "-" removes trailing spaces from the immediately prior string so

    TRIM(OFFER)-CATEGORY
    and
    OFFER-CATEGORY

    are equivalent.

    OFFER-CATEGORY+" "
    adds your space.
    OFFER-CATEGORY+" "-Source
    removes the space just added and adds the SOURCE field including any trailing quotes.
    OFFER-CATEGORY+" "+TRIM(Source)
    seems like what you want.

    Since this must be enclosed in outside quotes to be used by the operation code
    "OFFER-CATEGORY+" "+TRIM(Source)"
    is the first step.
    Note that we now have quotes inside of quotes. The backslash tells Alpha how to handle those inside quotes.
    "OFFER-CATEGORY+\" \"+TRIM(Source)"

    Note that
    "OFFER-CATEGORY+' '+TRIM(Source)"
    means the same thing.
    Last edited by Stan Mathews; 06-04-2009, 01:17 PM.
    There can be only one.

    Comment


      #3
      Re: Operation converted to code

      Hi Stan,
      Thanks for your extensive help. I tried the last line of code that you posted with results shown below.

      "OFFER-CATEGORY+' '+TRIM(Source)" = lots of spaces
      8E4BR 1002

      I get the same result with the other code:
      "OFFER-CATEGORY+\" \"+TRIM(Source)" =
      8E4BR 1002

      Everything that you said seems very logical.

      Edit #1: In proportional fonts, this doesn't look too bad, but in reality there are 16 blank spaces in the examples shown above. My source is an XLS file saved as a DBF which I'd rather leave exactly as it came to me. That is why I'm trimming in A5.

      Edit #2: I checked the source. All the spaces are coming from the "Category" field. The "Source" field has a length of only 4.
      Last edited by George Noonan; 06-04-2009, 02:00 PM. Reason: Further info

      Comment


        #4
        Re: Operation converted to code

        So trim the category field

        "OFFER-trim(CATEGORY)+' '+TRIM(Source)"
        There can be only one.

        Comment


          #5
          Re: Operation converted to code

          Thanks Stan,

          This last one worked. If I had read your post more carefully about the "-" removing trailing spaces from the PRIOR string, you wouldn't have had to compose that last reply.

          In my defense, it was noon and I was distracted by hunger...

          Thanks,
          George

          Comment


            #6
            Re: Operation converted to code

            nice pun noon an

            Comment


              #7
              Re: Operation converted to code

              Ok, Mike, you've had enough coffee for today...

              Comment

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