From e242d9ba34bb6f54b8efb9665564a7a36cbf9689 Mon Sep 17 00:00:00 2001
From: Kim Alvefur <zash@zash.se>
Date: Fri, 9 May 2014 19:34:35 +0200
Subject: core.configmanager: Move path utility functions into util.paths

---
 util/paths.lua | 38 ++++++++++++++++++++++++++++++++++++++
 1 file changed, 38 insertions(+)
 create mode 100644 util/paths.lua

(limited to 'util/paths.lua')

diff --git a/util/paths.lua b/util/paths.lua
new file mode 100644
index 00000000..3e5744df
--- /dev/null
+++ b/util/paths.lua
@@ -0,0 +1,38 @@
+local path_sep = package.config:sub(1,1);
+
+local path_util = {}
+
+-- Helper function to resolve relative paths (needed by config)
+function path_util.resolve_relative_path(parent_path, path)
+	if path then
+		-- Some normalization
+		parent_path = parent_path:gsub("%"..path_sep.."+$", "");
+		path = path:gsub("^%.%"..path_sep.."+", "");
+
+		local is_relative;
+		if path_sep == "/" and path:sub(1,1) ~= "/" then
+			is_relative = true;
+		elseif path_sep == "\\" and (path:sub(1,1) ~= "/" and (path:sub(2,3) ~= ":\\" and path:sub(2,3) ~= ":/")) then
+			is_relative = true;
+		end
+		if is_relative then
+			return parent_path..path_sep..path;
+		end
+	end
+	return path;
+end
+
+-- Helper function to convert a glob to a Lua pattern
+function path_util.glob_to_pattern(glob)
+	return "^"..glob:gsub("[%p*?]", function (c)
+		if c == "*" then
+			return ".*";
+		elseif c == "?" then
+			return ".";
+		else
+			return "%"..c;
+		end
+	end).."$";
+end
+
+return path_util;
-- 
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