Add looping support for line templates. Produce multiple whole lines here, instead of multiple copies of each syllable one after another on the same line.

Originally committed to SVN as r1553.

automation/autoload/kara-templater.lua

@@ -443,6 +443,9 @@ function apply_line(meta, styles, subs, line, templates, tenv)
 	-- Apply all line templates
 	aegisub.debug.out(5, "Running line templates\n")
 	for t in matching_templates(templates.line, line, tenv) do
+		tenv.j = 0
+		while tenv.j < t.loops do
+			tenv.j = tenv.j + 1
 			if t.code then
 				aegisub.debug.out(5, "Code template, %s\n", t.code)
 				tenv.line = line
@@ -483,6 +486,7 @@ function apply_line(meta, styles, subs, line, templates, tenv)
 				subs.append(newline)
 			end
 		end
+	end
 	aegisub.debug.out(5, "Done running line templates\n\n")
 	
 	-- Loop over syllables