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IgorXX
IgorXX
Last Activity: Jun 4 '13, 01:57 PM
Joined: May 30 '13
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  • IgorXX
    replied to Using sscanf() to parse a buffer string containing multiple fixed-length sub-strings
    in C
    Oralloy

    Notes on my last reply:
    1. Much earlier in our conversation, I had incorrectly defined rise_fall as
    char *rise_fall = '\0';
    It should have been
    char rise_fall = '\0';
    2. My last sentence beginning with "Alas I rue having" should have read "Alas I rue not having".

    Having abruptly awoken at 2 AM with drool running down the side of my mouth by...
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    • IgorXX
      replied to Using sscanf() to parse a buffer string containing multiple fixed-length sub-strings
      in C
      Oralloy,

      I will have to wait until maybe Wednesday before working on this nay more as Micsoroft has been trying to clear up my machine (Trojans and a trashed regisrty file among other things). Their server was up and down today so they couldn't finish. Now must "wait til the morrow". The mention of FORTRAN brings back memories to an old, toothless programmer. It was the first language I learned, even before proper English....
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      • IgorXX
        replied to Using sscanf() to parse a buffer string containing multiple fixed-length sub-strings
        in C
        Oralloy

        Thanks again. At your suggestion, I used error checking. The output lines below are from a debug display using printf("[%s][%s][%s][%s][%s][%s][%s][%c][%s]\n" . The brackets clearly show what is assigned to each variable.

        Your suggested format string "%15c%8c%4c%4c% 4c%10c%6c%1c%[^]" works better but gives:
        [ELLINGTON FLD ][PTSUNNY ][ 90][ 75][ 62][ SW10G18 ][ 29.94][ ][]
        ...
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        • IgorXX
          replied to Using sscanf() to parse a buffer string containing multiple fixed-length sub-strings
          in C
          Oralloy,

          Thanks for your help. I must really be missing something. Have worked the format string down to

          "%15[^]%8[^]%8[^]%4[^]%4s%6s%16s%8c%[^]"

          with the folowing results:

          [ELLINGTON FLD ][PTSUNNY ][90][75][62][ SW10G18][][ ][]
          [*ZAPATA ][SUNNY ][99][61][28][ SE13G20][][ ][]
          [FORT STOCKTON ][SUNNY ][102][-17][1][ SW24G30][][ ][]
          [GUYMON ...
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          • IgorXX
            started a topic Using sscanf() to parse a buffer string containing multiple fixed-length sub-strings
            in C

            Using sscanf() to parse a buffer string containing multiple fixed-length sub-strings

            I used the %Width[^]s format specifier, in which "Width" specifies the maximum number of characters to be read for the value of the associated variable. It does not appear to work properly or it is incorrect.


            Code:
            char inbuf[128] = "\0";            //input string just read from infile
char obs_sta[32] = "\0";           //name of observation station
char sky_wx[16] = "\0";
            ...
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            Last edited by Rabbit; May 30 '13, 10:12 PM. Reason: Please use code tags when posting code.
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