Input Macros

The macros in the sample input_macros.cfg configuration file below are for script data input.  You would use these to, for example, preprocess or reformat input, as shortcuts for reading data from files, etc.

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// input macros - script input
 
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behead(N)       =sed '1,(N)d'   // behead chops off the first (N) lines
                                // of input; e.g.,
                                //
                                // input proc "=swap -l | =behead(1)"
                                //
                                // excludes:
                                //
                                // swapfile             dev swaplo blocks  free
                                //
                                // and yields (for example):
                                //
                                // /dev/dsk/c0t0d0s1  136,1     16 2097632 2097632
 
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onecol          =tr ' ' '\\012' // onecol takes a string of tokens separated
                                // by spaces as input and outputs them line
                                // by line in a single column; e.g.,
                                // 
                                // input proc "=echo 'one two three' | =onecol"
                                // 
                                // yields the input stream:
                                // 
                                // one
                                // two
                                // three
 
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oneline         =tr '\\012' ' ' // oneline takes a series of lines as input
                                // and outputs them as one long string; e.g.,
                                // 
                                // input proc "=df | =behead(1) | =oneline"
                                // 
                                // yields an input stream like so:
                                // 
                                // /dev/dsk/c0t3d0s0  23063  16559 4204 80% /
                                // /dev/dsk/c0t3d0s6 210895 185378 4437 98% /usr
                                   ...
 
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readvals(F, V, S, N)    // open the file (F), for each input line, #split()
                        // on separator(s) (S) into (N) fields, assign to
                        // associative array (V)[], with the first field in
                        // the referenced file as the key
                        // (F) is the file (e.g., =passwd; without quotes)
                        // (V) is the variable name (e.g., pfield)
                        // (S) is the field separator (e.g, ":"; with quotes)
                        // (N) is the number of assigned values per line,
                        //   (e.g., 6; note that (N) should be one less
                        //   than the actual number of data items per line,
                        //   since the first data item is the key, and all
                        //   remaining items are the assigned values)
                        // sample use: =readvals(=objdir/ProcessTimes.obj,
                                                 minsproc, "  ", 3)
                if #fopen(READVALS, "(F)", "r") != #err()
                        while #read(READVALS) > 0
                                set #nrv = #split($rdlin, (S)) - 1
#ifdef debug
                                if #nrv < (N)
                                        =outputmail "Too few vals ($text(#nrv)):
                                                     $rdlin"
                                fi
#endifdef
                                for #irv=1 #irv<=(N) #irv+=1
                                        set $(V)["$trim($1) $text(#irv)"] =
                                                 $trim($[#irv+1])
                                endfor
                        endwhile
                        do #fclose(READVALS)
#ifdef debug
                        for $krv in #keys($(V))
                                output "$krv $(V)[$krv]"
                        endfor
#endifdef
                else
                        output mail "Can't open (F) for reading!"
                        quit
                fi
 
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For more examples, see Samples.