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Full Discussion: Performing lookup quickly
Top Forums Shell Programming and Scripting Performing lookup quickly Post 302590667 by archimedes on Tuesday 17th of January 2012 06:04:26 AM
Old 01-17-2012
if your lookup file is delimited, then you need to mention the FieldSeparator (FS) i.e. FS="|" in the BEGIN block before the while loop begins and then reassign it to FS = " " after the while loop ends.

Code:
 
awk -F" " ' BEGIN {
FS="|";
 while (getline < "lookup")
{
  arr[$1]=$2;
}
FS=" ";
}

Regards,
A!
This User Gave Thanks to archimedes For This Post:
 

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mlib_ImageLookUp_Inp(3MLIB)				    mediaLib Library Functions				       mlib_ImageLookUp_Inp(3MLIB)

NAME
mlib_ImageLookUp_Inp - table lookup, in place SYNOPSIS
cc [ flag... ] file... -lmlib [ library... ] #include <mlib.h> mlib_status mlib_ImageLookUp_Inp(mlib_image *srcdst, const void **table); DESCRIPTION
The mlib_ImageLookUp_Inp() function maps the source image to the destination image, in place, by using the user-specified lookup table. The following equation is used: srcdst[x][y][i] = table[i][srcdst[x][y][i]] PARAMETERS
The function takes the following arguments: srcdst Pointer to first source and destination image. table Pointer to lookup table. The data type of the lookup table is the same as the destination image. The number of entries in the lookup table is determined by the type of the input image. The format of the lookup table is: table[channel][index] The MLIB_BYTE type entries are indexed from 0 to 255. The MLIB_SHORT type entries are indexed from -32768 to -1, then from 0 to 32767. The MLIB_USHORT type entries are indexed from 0 to 65535. The MLIB_INT type entries are indexed from -2147483648 to -1, and then from 0 to 2147483647. RETURN VALUES
The function 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 |Evolving | +-----------------------------+-----------------------------+ |MT-Level |MT-Safe | +-----------------------------+-----------------------------+ SEE ALSO
mlib_ImageLookUp(3MLIB), mlib_ImageLookUp2(3MLIB), mlib_ImageLookUpMask(3MLIB), attributes(5) SunOS 5.10 10 Nov 2004 mlib_ImageLookUp_Inp(3MLIB)
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