Merge branch 'dict-lookup' into 'develop'

Dict lookup

See merge request !105

applications/test/dictionary/testSubkeyword

@@ -0,0 +1,53 @@
+/*--------------------------------*- C++ -*----------------------------------*\
+| =========                 |                                                 |
+| \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox           |
+|  \\    /   O peration     | Version:  plus                                  |
+|   \\  /    A nd           | Web:      www.OpenFOAM.com                      |
+|    \\/     M anipulation  |                                                 |
+\*---------------------------------------------------------------------------*/
+FoamFile
+{
+    version     2.0;
+    format      ascii;
+    class       dictionary;
+    object      testDict;
+    note        "test with foamDictionary -expand";
+}
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+// #inputMode  overwrite
+
+key1 val1;
+
+subdict
+{
+    key1 a;
+    key2 b;
+}
+
+update
+{
+    key1 val1b;
+    key2 val2;
+
+    subdict
+    {
+        key2 $key1;
+        key3 val3;
+        key2b ${..key2};
+        key3b $^key1;
+    }
+}
+
+
+$update
+
+// Can a leading '^' or  ':' as anchor for scoping
+key3 $^subdict.key1;
+key3 ${^update.subdict.key3};
+key4 ${:update.subdict...subdict.key1};
+
+// This is currently not working
+#remove update.key1
+// #remove update
+
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //