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Full Discussion: Need help to write a Perl script
Top Forums Shell Programming and Scripting Need help to write a Perl script Post 302177870 by user_prady on Sunday 23rd of March 2008 11:33:14 PM
Old 03-24-2008
Bug
Quote:
Originally Posted by era
The logic is a bit hard to follow. Could you post a sample input and sample output for that?

I would start by refactoring your script based on the following observations;

* the "if" has only an "else" clause. It would seem more natural to invert the test and have only a "then" clause.

* Perl can easily convert hex to binary, and generally between different number bases, so that part of the script is easy to simplify. But you are not using the value of $binary anywhere?

Code:
open(IN, $file)|| die("Could not open file: $!");
while(<IN>) {
 unless (/^["*]/) {
   @fld = split(/,/, $_);
   if( $fld[3] == 1 ){
          print $_;
          $binary1 = HexToBinary(substr($fld[0],0,2));
          print $_;
	  # do you mean
	  # $first = $binary1 . substr($fld[0],2);
          # shift @fld
          # print join ("," $first, @fld)
          # ?
    }
  }
}
sub HexToBinary{
    my $hex = $h;
    return sprintf "%b", hex($h);
}


Thank you all for your kind reply.

Era sorry for not sending my whole goal and code.

Here it goes...Its a FPGA test pattern .But I think I cant send all my constarints at once.

Input
Code:
"RxData","Time","NSysClkEn"
000000,0000,1,0,0,0,0,0,0
000000,0000,0,0,0,0,0,0,0
*Comment Control Frame at 10 us
000000,030C,0,0,0,0,1,0,1
241000,0000,0,1,3,0,0,0,0
000100,0000,0,0,2,0,0,0,0
*Comment Control Frame at 65 us
000000,13CE,0,0,0,0,1,0,1
000200,0000,0,1,2,0,0,0,0

*Main Start
*Comment Frame 2 at 1.04167 us
000000,2451,0,0,0,0,1,0,1
A8F9FF,0000,0,1,3,0,0,0,0
9F999F,0000,0,0,3,0,0,0,0
FFF9FF,0000,0,0,3,0,0,0,0
F9FF9F,0000,0,0,3,0,0,0,0
999DF3,0000,0,0,3,0,0,0,0
73BDF5,0000,0,0,3,0,0,0,0
D5FDF5,0000,0,0,3,0,0,0,0
5FD9B5,0000,0,0,3,0,0,0,0
1BB3BB,0000,0,0,3,0,0,0,0
7DF97D,0000,0,0,3,0,0,0,0
3BDDDB,0000,0,0,3,0,0,0,0
*Main End

Constraints:
Code:
1.dont process lines starting with lines " (double quotes)and  * (astris)
2.Prints the lines starting with * as it is. 
3.if the fourth field is "1" then take the fist two digits of the first field and then convert it to binary.
   checks the binary no with a look up table.
4.prints the second field in decimal when field 9th and 7th are "1".

For the time being I am explananing that much when I ll archive that goal in Perl I ll explain further friends.

Regards,
user_prady
 

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LEARN ABOUT OPENSOLARIS

mlib_videocoloryuv444int_to_argbint

mlib_VideoColorYUV444int_to_ARGBint(3MLIB)		    mediaLib Library Functions			mlib_VideoColorYUV444int_to_ARGBint(3MLIB)

NAME

       mlib_VideoColorYUV444int_to_ARGBint - color convert YUV interleaved to ARGB interleaved

SYNOPSIS

       cc [ flag... ] file... -lmlib [ library... ]
       #include <mlib.h>

       void mlib_VideoColorYUV444int_to_ARGBint(mlib_u32 *ARGB,
	    const mlib_u8 *YUV, const mlib_u8 *A_array, mlib_u8 A_const,
	    mlib_s32 w, mlib_s32 h, mlib_s32 dlb,
	    mlib_s32 slb, mlib_s32 alb);

DESCRIPTION

       The  YUV pixel stream is converted into an ARGB pixel stream. All pixel components are 8-bit unsigned integers. All buffers have dimensions
       w and h.

       The alpha values for this function work in the following fashion:

	   o	  If A_array pointer is not NULL, the values are taken from there. It has to have the same dimensions as the Y buffer.

	   o	  If A_array pointer is NULL, the alpha values for every pixel are set to A_const.

       The following equation is used:

	 |R|   |1.1644	0.0000	1.5966|   [|Y|	 | 16.0000|]
	 |G| = |1.1644 -0.3920 -0.8132| * [|U| - |128.0000|]
	 |B|   |1.1644	2.0184	0.0000|   [|V|	 |128.0000|]

PARAMETERS

       The function takes the following arguments:

       ARGB	  Pointer to output buffer.

       YUV	  Pointer to Y input buffer.

       A_array	  Array of alpha values.

       A_const	  Constant alpha value.

       w	  Image width in pixels.

       h	  Image height in lines.

       dlb	  Linebytes for output buffer.

       slb	  Linebytes for input buffer.

       alb	  Linebytes for alpha buffer.

RETURN VALUES

       None.

ATTRIBUTES

       See attributes(5) for descriptions of the following attributes:

       +-----------------------------+-----------------------------+
       |      ATTRIBUTE TYPE	     |	    ATTRIBUTE VALUE	   |
       +-----------------------------+-----------------------------+
       |Interface Stability	     |Committed 		   |
       +-----------------------------+-----------------------------+
       |MT-Level		     |MT-Safe			   |
       +-----------------------------+-----------------------------+

SEE ALSO

       mlib_VideoColorYUV420seq_to_ARGBint(3MLIB),     mlib_VideoColorYUV411seq_to_ARGBint(3MLIB),     mlib_VideoColorYUV422seq_to_ARGBint(3MLIB),
       mlib_VideoColorYUV444seq_to_ARGBint(3MLIB),     mlib_VideoColorYUV420seq_to_ABGRint(3MLIB),     mlib_VideoColorYUV411seq_to_ABGRint(3MLIB),
       mlib_VideoColorYUV422seq_to_ABGRint(3MLIB),    mlib_VideoColorYUV444seq_to_ABGRint(3MLIB),     mlib_VideoColorYUYV422int_to_ARGBint(3MLIB),
       mlib_VideoColorYUYV422int_to_ABGRint(3MLIB),    mlib_VideoColorYUV444int_to_ABGRint(3MLIB),    mlib_VideoColorUYVY422int_to_ARGBint(3MLIB),
       mlib_VideoColorUYVY422int_to_ABGRint(3MLIB),    mlib_VideoColorUYV444int_to_ARGBint(3MLIB),     mlib_VideoColorUYV444int_to_ABGRint(3MLIB),
       attributes(5)

SunOS 5.11							    2 Mar 2007				mlib_VideoColorYUV444int_to_ARGBint(3MLIB)
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