added python based tsvplot

tsv/tsvplot

@@ -1,33 +1,52 @@
 #!/bin/bash
 
-[[ -z "$3" ]] && {
+_helpexit() {
+  self=$( basename $0 )
   echo "Plot2D for console.
   
   Arguments
-  tsvplot  FILE xCol yCol [plotStyle] [preBlock]
+  $self  FILE xCol yCol [-X] [plotStyle] [preBlock]
   
-  e.g.  tsvplot cal.tsv 2 4 
-  or    tsvplot cal.tsv Area Weight \"with lines;\" \"set title 'test plot';\" 
+  e.g.  $self cal.tsv 2 4 
+  or    $self cal.tsv Area Weight \"with lines;\" \"set title 'test plot';\" 
   preBlock may contain any GNUPlot commands.
   plotStyle contains any plotting style commands.
   
+  -X    use X11 instead of console
   Requires  csvkit and gnuplot
   "
   exit
 }
 
-fbase=$( basename "$1" )
+if [ $# -lt 3 ]; then _helpexit; fi
 
-csvcut -t -c "$2,$3" "$1" | gnuplot -e "
-set term dumb $(tput cols) $(tput lines) enhanced; 
+POS=0
+POSADJUST=0
+for (( i=1; i<=$#; i++ )); do 
+  POS=$(( $i + $POSADJUST ))
+  [[ ${!i} = "-h" ]] && _helpexit
+  [[ ${!i} = "help" ]] && _helpexit
+  [[ ${!i} = "-X" ]] && PLOTTERM="  " && POSADJUST=$(( $POSADJUST - 1 )) && continue
+  [[ $POS -eq 1 ]] && FILE="${!i}"
+  [[ $POS -eq 2 ]] && XCOL="${!i}"
+  [[ $POS -eq 3 ]] && YCOL="${!i}"
+  [[ $POS -eq 4 ]] && STYLE="${!i}"
+  [[ $POS -eq 5 ]] && PRE="${!i}"
+done
+fbase=$( basename "$FILE" )
+[[ -z "$PLOTTERM" ]] && PLOTTERM="set term dumb $(tput cols) $(tput lines) enhanced;" 
+[[ -z "$PRE" ]]      && PRE="set title '$fbase';"
+
+csvcut -t -c "$XCOL,$YCOL" "$FILE" | gnuplot -p -e "$PLOTTERM
 set datafile separator \",\"; 
-set xlabel '$2'; 
-$5
-plot '<cat' using 1:2 title '$fbase $3' $4" 
+set xlabel '$XCOL'; 
+set ylabel '$YCOL'; 
+$PRE
+plot '<cat' using 1:2 title '' $STYLE" 
 
 [[ $? -ne 0 ]] && {
     echo -n "Possible columns: "
-    head -n 1 "$1" | tr \\t ,
+    head -n 1 "$FILE" | tr \\t ,
 } || {
     true
 }