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Full Discussion: Conditional replace after reading in a file
Top Forums Programming Conditional replace after reading in a file Post 302602444 by Corona688 on Monday 27th of February 2012 11:29:32 AM
Old 02-27-2012
Code:
$ cat shiftport.awk

/shift_port/ {
        # Do some matching to get the value of shift_port
        split($0, A, ";");      # Split on ; to get statement
        N=split(A[1], A, "=");  # Split on = to get vars
        gsub(/ /, "", A[N]);    # Get rid of spaces

        if((PREV_PORT == "P0") && (A[N] == "P0"))
        {
                # Substitute 00 for P0 for this line
                sub(A[N], "00");
                # Substitute M0 for P0 in previous line
                sub("P0", "M0", LINE[PREV_LINE]);
                # Tell ourselves that this line is 00, not P0
                A[N]="00"
        }

        # Save for later, so we can check and replace previous line
        PREV_PORT=A[N];
        PREV_LINE=L+1;
}

# Save lines for substitution and printing later
{       LINE[++L]=$0    }

# Print all lines
END {   for(N=1; N<=L; N++)     print LINE[N];  }


$ awk -f shiftport.awk data

  V {
    port1       = P;
    port2       = 0;
    shift_port  = M0; /* if next shift_port is P0 I need to replace this with M0; and next shift_port's P0; with 00;
    port3       = 0;
    reset       = 1;
   }
  W wf_cyc;
  V {
    port1       = P;
    port2       = 0;
    shift_port  = 00;
    port3       = 0;
    reset       = 1;
   }
  Macro "Inputs" {
    test_ip =
        110111010110
  }

  W wf_cyc;
  V {
    port1       = P;
    port2       = 0;
    shift_port  = 00;
    port3       = 0;
    reset       = 1;
  }
  W wf_cyc;
  V {
    port1       = P;
    port2       = 0;
    shift_port  = 00;
    port3       = 0;
    reset       = 1;
   }
  W wf_cyc;
  V {
    port1       = P;
    port2       = 0;
    shift_port  = M0;/* if next shift_port is P0; I need to replace this with M0; and next shift_port's P0 with 00;
    port3       = 0;
    reset       = 1;
   }
  W wf_cyc;
  V {
    port1       = P;
    port2       = 0;
    shift_port  = 00;/* if next shift_port is P0; I need to replace this with M0; and next shift_port's P0 with 00;
    port3       = 0;
    reset       = 1;
   }
}

$

This User Gave Thanks to Corona688 For This Post:
naveen@
 

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LEARN ABOUT DEBIAN

hierarch28

hierarch28(1)						      General Commands Manual						     hierarch28(1)

NAME

       hierarch28 - header conversion from ESO to standard FITS

SYNOPSIS

       hierarch28 [options] <FITS> [table]

DESCRIPTION

       hierarch28  will  convert keyword names in a FITS header to new names, using a user-provided ASCII conversion table. It is especially aimed
       at removing no-standard FITS features, such as the HIERARCH ESO keyword names.

       hierarch28 can also perform a translation to the IRAF convention on the following four keywords: 'RA', 'DEC', 'UT' and 'LST'. IRAF requires
       these keywords to contain the string representation of their values, e.g.
       RA      = ' 09:45:14.594'
       DEC     = '-33:47:09.420'
       UT      = ' 01:17:21.950'
       LST     = ' 08:19:59.688'

       The  ESO  standard  (see http://archive.eso.org/dicb) defines these keywords as floating point values with the units degrees for RA/DEC and
       elapsed seconds since midnight for UT/LST.

       In order to have this translation performed, add
       RA = RA
       DEC = DEC
       UT = UT
       LST = LST
       to the conversion table.

OPTIONS

       -g     This option is used to generate default translation tables.

FILES

       hierarch28 expects a conversion table in input. Default name for this table is  table.conv  in  the  current  working  directory.  Indicate
       another	name  for this file as last argument on the command-line. This ASCII file contains a list of keywords to replace, in the following
       format:

       #
       # Comment lines start with a hash '#'
       # Blank lines would be ignored
       #
       OLDKEYWORD1 = NEWKEYWORD1
       OLDKEYWORD2 = NEWKEYWORD2
       etc.

       Input keywords are character strings, they may contain blanks. Example:

       HIERARCH ESO DET DIT = DETDIT

       One important restriction is that the new keyword name may not be longer than the initial one. The program will	complain  that	it  cannot
       achieve search and replace if this is the case.

IMPORTANT

       This  programs achieves maximal speed to operate because it modifies the input file directly. Be aware that using hierarch28 on a file will
       modify its contents in an irreversible way!

								    29 May 2000 						     hierarch28(1)
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