Try to implement explode and implode because fish-shell/fish-shell#159.

Still not sure how to explode strings without sed.

.config/fish/functions/explode.fish

@@ -0,0 +1,5 @@
+function explode
+	if test (count $argv) -eq 2
+		echo $argv[1]|sed 's|'$argv[2]'|\n|g'
+	end
+end

.config/fish/functions/implode.fish

@@ -0,0 +1,13 @@
+function implode
+	if test (count $argv) -ge 2
+		set finished ""
+		for arg in $argv[1..-2]
+			if test $arg  = $argv[-2]
+				break
+			end
+			set finished (printf "%s%s%s" $finished $arg $argv[-1])
+		end
+		set finished (printf "%s%s" $finished $argv[-2])
+		echo $finished
+	end
+end