text.split[_unlimited]: Use pattern by default

file.lua

@@ -19,7 +19,7 @@ end
 get_extension = split_extension
 
 function split_path(filepath)
-	return modlib.text.split(filepath, dir_delim)
+	return modlib.text.split_unlimited(filepath, dir_delim, true)
 end
 
 -- concat_path is set by init.lua to avoid code duplication

minetest/mod.lua

@@ -62,7 +62,7 @@ local warn_parent_leaf = "modlib: setting %s used both as parent setting and as
 local function build_tree(dict)
 	local tree = {}
 	for key, value in pairs(dict) do
-		local path = modlib.text.split_unlimited(key, ".")
+		local path = modlib.text.split_unlimited(key, ".", true)
 		local subtree = tree
 		for i = 1, #path - 1 do
 			local index = tonumber(path[i]) or path[i]

text.lua

@@ -45,24 +45,25 @@ function hexdump(text)
 	return table.concat(dump)
 end
 
-function split(text, delimiter, limit, is_regex)
+function split(text, delimiter, limit, plain)
 	limit = limit or math.huge
-	local no_regex = not is_regex
 	local parts = {}
 	local occurences = 1
 	local last_index = 1
-	local index = string.find(text, delimiter, 1, no_regex)
+	local index = string.find(text, delimiter, 1, plain)
 	while index and occurences < limit do
 		table.insert(parts, string.sub(text, last_index, index - 1))
 		last_index = index + string.len(delimiter)
-		index = string.find(text, delimiter, index + string.len(delimiter), no_regex)
+		index = string.find(text, delimiter, index + string.len(delimiter), plain)
 		occurences = occurences + 1
 	end
 	table.insert(parts, string.sub(text, last_index))
 	return parts
 end
 
-function split_without_limit(text, delimiter, is_regex) return split(text, delimiter, nil, is_regex) end
+function split_without_limit(text, delimiter, plain)
+	return split(text, delimiter, nil, plain)
+end
 
 split_unlimited = split_without_limit