Fix some functions

dotfiles/lib/functions/dbus_introspect

@@ -9,4 +9,4 @@ function dbus-introspect {
 			  org.freedesktop.DBus.Introspectable.Introspect | tail -n +2 | sed -e "s/^ *string//"
 }
 
-dbus-introspect
+dbus-introspect "$@"

dotfiles/lib/functions/environment_variable_exists

@@ -5,5 +5,5 @@ function environment_variable_exists {
     [ ! -z $value ]
 }
 
-environment_variable_exists
+environment_variable_exists "$@"
 

dotfiles/lib/functions/get_sink_input_by_pid

@@ -4,5 +4,5 @@ function get_sink_input_by_pid {
 	get_sink_input_info.hs | jq 'select(.application_process_id == "'"$thePID"'")'
 }
 
-get_sink_input_by_pid
+get_sink_input_by_pid "$@"
 

dotfiles/lib/functions/pahelper

@@ -99,4 +99,4 @@ function pahelper {
   esac
 }
 
-pahelper
+pahelper "$@"

dotfiles/lib/functions/path_lines

@@ -1,10 +1,7 @@
 #!/usr/bin/env sh
 
 function path_lines {
-	IFS=':' read -A ADDR <<< "$PATH"
-	for one_path in "${ADDR[@]}"; do
-		echo $one_path
-	done
+	split_by_char ":" "$PATH"
 }
 
 path_lines

dotfiles/lib/functions/set_volume

@@ -1,14 +1,5 @@
 #!/usr/bin/env sh
 
-function switch_sink_applications()
-{
-  echo switching applications
-  pacmd list-sink-inputs |
-      awk '/index:/{print $2}' |
-      xargs -r -I{} pacmd move-sink-input {} $1 ||
-      echo failed
-}
-
 function set_volume {
   current_default=$(pahelper list | grep '*' | all_after_char ":" | xargs)
   environment_variable_exists USE_ONLY_O_PASINK && pahelper "$current_default"
@@ -17,3 +8,5 @@ function set_volume {
   pulsemixer "$@"
   pashowvolume
 }
+
+set_volume "$@"