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Full Discussion: "execution problem with perl"
Top Forums Programming "execution problem with perl" Post 302536941 by mirni on Wednesday 6th of July 2011 02:57:45 PM
Old 07-06-2011
OK... I think I'm starting to understand. You just need to reshuffle the lines so that the A-msg-B is followed by B-msg_msg-A.

Try this. Not super efficient, but should work:
Code:
IFS=',' 
while read src msg dst ; do 
  [[ $msg =~ _ ]] && continue 
  echo $src,$msg,$dst 
  grep "${dst},${msg}_${msg},${src}" responses.txt
done < responses.txt

where responses.txt is your input file
 

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LEARN ABOUT OPENSOLARIS

mlib_signalemphasize_f32_f32

mlib_SignalEmphasize_S16_S16_Sat(3MLIB) 		    mediaLib Library Functions			   mlib_SignalEmphasize_S16_S16_Sat(3MLIB)

NAME

       mlib_SignalEmphasize_S16_S16_Sat, mlib_SignalEmphasize_S16S_S16S_Sat, mlib_SignalEmphasize_F32_F32, mlib_SignalEmphasize_F32S_F32S - signal
       pre-emphasizing

SYNOPSIS

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

       mlib_status mlib_SignalEmphasize_S16_S16_Sat(mlib_s16 *dst,
	    const mlib_s16 *src, void *filter, mlib_s32 n);

       mlib_status mlib_SignalEmphasize_S16S_S16S_Sat(mlib_s16 *dst,
	    const mlib_s16 *src, void *filter, mlib_s32 n);

       mlib_status mlib_SignalEmphasize_F32_F32(mlib_f32 *dst,
	    const mlib_f32 *src, void *filter, mlib_s32 n);

       mlib_status mlib_SignalEmphasize_F32S_F32S(mlib_f32 *dst,
	    const mlib_f32 *src, void *filter, mlib_s32 n);

DESCRIPTION

       Each of these functions applies the preemphasizer to one signal packet and updates the filter states.

       For monaural signals, the following equation is used:

	 dst[i] = src[i] - alpha*src[i - 1]

       where i = 0, 1, ..., (n - 1); src[-1] = 0.

       For stereo signals, the following equation is used:

	 dst[2*i]     = src[2*i]     - alpha*src[2*(i - 1)]
	 dst[2*i + 1] = src[2*i + 1] - alpha*src[2*(i - 1) + 1]

       where i = 0, 1, ..., (n - 1); src[-2] = src[-1] = 0.

PARAMETERS

       Each of the functions takes the following arguments:

       dst	 Destination signal array.

       src	 Source signal array.

       filter	 Internal filter structure.

       n	 Number of samples in the source signal array.

RETURN VALUES

       Each of the functions returns MLIB_SUCCESS if successful. Otherwise it returns MLIB_FAILURE.

ATTRIBUTES

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

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

SEE ALSO

       mlib_SignalEmphasizeFree_S16_S16(3MLIB), mlib_SignalEmphasizeInit_S16_S16(3MLIB), attributes(5)

SunOS 5.11							    2 Mar 2007				   mlib_SignalEmphasize_S16_S16_Sat(3MLIB)
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