ini: accept array notation

Signed-off-by: Alexandre Terrasa <alexandre@moz-code.org>

diff --git a/lib/ini.nit b/lib/ini.nit
index 708a5f7..bf1c652 100644 (file)
--- a/lib/ini.nit
+++ b/lib/ini.nit
@@ -184,6 +184,21 @@ class ConfigTree
        #     assert config["foo.bar.baz"] == "foobarbaz"
        #     assert config["goo.boo.bar"] == "gooboobar"
        #     assert config["goo.boo.baz.bar"] == "gooboobazbar"
+       #
+       # Using the array notation
+       #
+       #     str = """
+       #     foo[]=a
+       #     foo[]=b
+       #     foo[]=c"""
+       #     str.write_to_file("config4.ini")
+       #     # load file
+       #     config = new ConfigTree("config4.ini")
+       #     print config.to_map.join(":", ",")
+       #     assert config["foo.0"] == "a"
+       #     assert config["foo.1"] == "b"
+       #     assert config["foo.2"] == "c"
+       #     assert config.at("foo").values.join(",") == "a,b,c"
        fun load do
                roots.clear
                var stream = new FileReader.open(ini_file)
@@ -208,10 +223,11 @@ class ConfigTree
                                end
                                var key = parts[0].trim
                                var val = parts[1].trim
-                               if path == null then
-                                       set_node(key, val)
+                               if path != null then key = "{path}.{key}"
+                               if key.has_suffix("[]") then
+                                       set_array(key, val)
                                else
-                                       set_node("{path}.{key}", val)
+                                       set_node(key,val)
                                end
                        end
                end
@@ -223,6 +239,16 @@ class ConfigTree
 
        private var roots = new Array[ConfigNode]
 
+       # Append `value` to array at `key`
+       private fun set_array(key: String, value: nullable String) do
+               key = key.substring(0, key.length - 2)
+               var len = 0
+               if has_key(key) then
+                       len = get_node(key).children.length
+               end
+               set_node("{key}.{len.to_s}", value)
+       end
+
        private fun set_node(key: String, value: nullable String) do
                var parts = key.split(".").reversed
                var k = parts.pop