update

1 files changed, 69 insertions, 16 deletions

diff --git a/pb_colour b/pb_colour
index 89f6354..6938399 100755
--- a/pb_colour
+++ b/pb_colour
@@ -3,45 +3,98 @@
 #--- 256 colour functions 
 # requires pb_number
 # usage:
-#  source ./pb
-#  printf %b "$(pb_bg 196)$(pb_fg 254) RED $(pb_nc)\n"
+#   source ./pb
+#   printf %b "$(pb_bg 196)$(pb_fg 254) RED $(pb_nc)\n"
 
 pb_nc() {
+
+  if [ -z "$TERM" ] || (($(tput colors) != 256)); then
+    return 1
+  fi
+
   printf '\033[0;0m';
-  exit;	
+  return 0	
 }
 
 pb_fg() {
 
-  if [ -z "$1" ] || ! pb_isuint "$1" ; then
+  if [ -z "$TERM" ] || (($(tput colors) != 256)); then
     return 1
   fi
-  
-  local x
-  x=$(tput colors)
 
-  if (("$1" < 256)) && (("$x" > 255)); then
-    printf %s "\033[38;5;$1m"
+  if [ -z "$1" ] || (("$1" > 255)) || ! pb_isuint "$1" ; then
+    return 1
   fi
 
+  printf %s "\033[38;5;$1m"
   return 0
 
 }
 
 pb_bg() {
 
-  if [ -z "$1" ] || ! pb_isuint "$1" ; then
+  if [ -z "$TERM" ] || (($(tput colors) != 256)); then
     return 1
   fi
 
-  local x
-  x=$(tput colors)
-
-  if (("$1" < 256)) && (("$x" > 255)); then
-    printf %s "\033[48;5;$1m"
+  if [ -z "$1" ] || (("$1" > 255)) || ! pb_isuint "$1" ; then
+    return 1
   fi
 
+  printf %s "\033[48;5;$1m"
   return 0
+
 }    
-	
+
+pb_ef() {
+
+	case $1 in
+
+	  "bold")
+	    printf %s "\033[1m"
+	    return 0
+	    ;;
+
+	  "dim")
+	    printf %s "\033[2m"
+	    return 0
+	    ;;
+
+	  "italic")
+	    printf %s "\033[3m"
+	    return 0
+	    ;;
+	    
+	  "underscore")
+	    printf %s "\033[4m"
+	    return 0
+	    ;;
+
+	  "blink")
+	    printf %s "\033[5m"
+	    return 0
+	    ;;
+
+	  "reverse")
+	    printf %s "\033[7m"
+	    return 0
+	    ;;
+
+	  "hidden")
+	    printf %s "\033[8m"
+	    return 0
+	    ;;
+	    
+	   "strikethrough")
+	    printf %s "\033[9m"
+	    return 0
+	    ;;
+
+	  *)
+	    return 1
+	    ;;
+esac
+
+}	
+
 # end 256 colour functions