Finish rewrite of plumber.

plumber

@@ -27,15 +27,31 @@ web_handler()
     esac
 }
 
+edgecase()
+{
+    err()
+    {
+	printf "Plumber wasn't able to find a way to handle the following URI.\n%s\nError code: %s\nProbable reason: %s\n" "${1}" "${2}" "${3}"|xmessage -file - &
+    }
+
+    case "${2}" in
+	0) set -- "${1}" "${2}" "Some other error." ;;
+	1) set -- "${1}" "${2}" "It doesn't exist on the local filesystem." ;;
+    esac
+
+    err "${@}"
+}
 
 local_handler()
 {
     cleanse_prefix()
     {
-	printf "%s" "$(echo "${1}" | sed -ne 's&file://&&p')"
+	printf "%s" "$(printf "%s" "${1}" | sed -ne 's&file://&&p')"
     }
 
     target="$(cleanse_prefix "${1}")"
+    if [ -e "${target}" ]
+    then
 	mime="$(file --mime-type -b "${target}")"
 
 	case ${mime} in
@@ -45,27 +61,13 @@ local_handler()
 	    audio*) exec fpm   "${target}" &  ;;
 	    image*) exec iview "${target}" &  ;;
 	    *pdf)   exec gv    "${target}" &  ;;
-	*) edgecase                  ;;
+	    *)      exec exit 1               ;; #Abort. This should never be reached.
 	esac
-}
-
-
-edgecase()
-{
-    err()
-    {
-	printf "Plumber wasn't able to find a way to handle the following URI.\n%s\n" "${1}"
-    }
-
-    # If first character is / or a ~ and it exists, we're dealing with local data.
-    firstchar=$(echo"${1}"|cut -b1)
-    if [ "${firstchar}" = '~' || "${firstchar}" = '/' ]
-    then
-	local_handler "${1}"
     else
-	err "${1}"
+	# Set the error code and throw an error.
+	set -- "${1}" "1"
+	edgecase "${@}"
     fi
-
 }
 
 # Commented lines will have support in the future.
@@ -75,7 +77,13 @@ case "$(printf "%s" "${1}"|cut -b 1,2,3,4)" in
     file)   local_handler "${@}" ;;
     #    ftp)    err "${@}"      ;;
     #    ssh)    err "${@}"      ;;
-    *)      edgecase "${2}"      ;;
+    *) firstchar=$(printf "%s" "${1}"|cut -b1)
+       if [ "${firstchar}" = '~' ] || [ "${firstchar}" = '/' ]
+       then
+	   local_handler "${@}"
+       else
+	   edgecase "${@}"
+       fi
 esac
 
 exit