videosite-irssi: replace literal canary value by variable

diff --git a/videosite-irssi.pl b/videosite-irssi.pl
index 4d3f481..f5c6ef1 100644 (file)
--- a/videosite-irssi.pl
+++ b/videosite-irssi.pl
@@ -26,6 +26,14 @@ my %foreground_colors = (
 );
 
 #
+# This is a canary value used in the config system as the default
+# value. As irssi does not have a way to test if a setting exists
+# this is used instead. A config value is never expected to be set
+# to this value and be valid.
+#
+my $config_canary = "\1";
+
+#
 # Initialize the config subsystem. Called by the core.
 #
 # Due to historic reasons this has to deal with a number of possible config sources:
@@ -140,10 +148,10 @@ sub config_get {
     my $val;
 
 
-    Irssi::settings_add_str('videosite', $item, "\1");
+    Irssi::settings_add_str('videosite', $item, $config_canary);
     $val = Irssi::settings_get_str($item);
 
-    return ($val ne "\1")?$val:undef;
+    return ($val ne $config_canary)?$val:undef;
 }
 
 #
@@ -153,8 +161,8 @@ sub config_has {
     my $path = shift;
     my $item = join('.', 'videosite', @{$path});
 
-    Irssi::settings_add_str('videosite', $item, "\1");
-    return Irssi::settings_get_str($item) ne "\1";
+    Irssi::settings_add_str('videosite', $item, $config_canary);
+    return Irssi::settings_get_str($item) ne $config_canary;
 }
 
 #
@@ -165,7 +173,7 @@ sub config_set {
     my $value = shift;
     my $item = join('.', 'videosite', @{$path});
 
-    Irssi::settings_add_str('videosite', $item, "\1");
+    Irssi::settings_add_str('videosite', $item, $config_canary);
     Irssi::settings_set_str($item, $value);
 }
 
@@ -179,7 +187,7 @@ sub config_set {
 sub config_del {
     my $path = shift;
 
-    config_set($path, "\1");
+    config_set($path, $config_canary);
 }
 
 #