reverse coloring variable

reporting/qolop

@@ -1,5 +1,5 @@
 #!/bin/bash
-_qColVersion() { echo Version 2018.10.23.0; }
+_qColVersion() { echo Version 2018.12.23.0; }
 
 _qColHelp() {
   _qColVersion
@@ -30,7 +30,13 @@ Examples:
   _qCol export _c
   echo -e ${_cG}Title${_cZ}
 
-Run qolop as script to print ANSI code table
+Run qolop as script to print ANSI code table, or evaluate commands
+
+  qolop eval "_qCol G; printf hello; _qCol z" | qolop export
+
+  The first command produces string with ANSI commands, the
+  second will escape the escape characters, so you can copy/paste
+  it in to another echo -e command.
 '
 }
 
@@ -123,6 +129,9 @@ _qPos() {
   [[ "$1" = "linedown" ]]  && { printf '\033['${n}'F'; return; }
   [[ "$1" = "col" ]]       && { printf '\033['${n}'G'; return; }
   [[ "$1" = "abs" ]]       && { printf '\033['${n}';'${x}'H'; return; }
+  echo "Command missing: save, restore, up, down, right, left, lineup, linedown, col, abs" >&2
+  echo "Directional commands take one argument, abs uses two (row, col)" >&2
+  return 1
 }
 
 _qClr() {
@@ -170,6 +179,17 @@ if [[ "$0" = "${BASH_SOURCE[0]}" ]]; then
     rm -f "$TMPFILE"
     exit 0
   } # end update
+  [[ "$1" = "eval" ]] && {
+    set -e
+    eval "$@"
+    exit
+  }
+  [[ "$1" = "export" ]] && {
+    cat - | sed s/$'\e'/\\\\033/g
+    echo ''
+    exit
+  }
+
   _qColHelp
   [[ "$1" = *"help" ]]  && exit
   [[ "$1" = "-h" ]]  && exit