added TODO_compound_statements.md

TODO_compound_statements.md

@@ -0,0 +1,32 @@
+See http://perldoc.perl.org/perlsyn.html#Compound-Statements
+
+*Note* LABELs are not supported yet, but can and should be implemented
+in rakudo and v5 at the same time.
+
+Done:
+    if (EXPR) BLOCK
+    if (EXPR) BLOCK else BLOCK
+    if (EXPR) BLOCK elsif (EXPR) BLOCK ...
+    if (EXPR) BLOCK elsif (EXPR) BLOCK ... else BLOCK
+    unless (EXPR) BLOCK
+    unless (EXPR) BLOCK else BLOCK
+    LABEL while (EXPR) BLOCK
+    LABEL for (EXPR; EXPR; EXPR) BLOCK
+    LABEL for VAR (LIST) BLOCK
+    LABEL foreach (EXPR; EXPR; EXPR) BLOCK
+    LABEL foreach VAR (LIST) BLOCK
+
+Almost (LHF):
+    given (EXPR) BLOCK
+    unless (EXPR) BLOCK elsif (EXPR) BLOCK ...
+    unless (EXPR) BLOCK elsif (EXPR) BLOCK ... else BLOCK
+    LABEL until (EXPR) BLOCK
+
+Todo:
+    LABEL while (EXPR) BLOCK continue BLOCK
+    LABEL until (EXPR) BLOCK continue BLOCK
+    LABEL for VAR (LIST) BLOCK continue BLOCK
+    LABEL foreach VAR (LIST) BLOCK continue BLOCK
+    LABEL BLOCK
+    LABEL BLOCK continue BLOCK
+    PHASE BLOCK