UnwrapLeft, error reporting improvements

[sbp.git] / TODO

diff --git a/TODO b/TODO
index 280f875..daf3667 100644 (file)
--- a/TODO
+++ b/TODO
@@ -1,43 +1,52 @@
 _____________________________________________________________________________
 Immediately
-
+  - use 'a'-'z' or 'a-z' instead of [a-z]?
+  - EOF token?
+  - de-genericize?
+  - better toString() methods all around...
   - foo.add(x)
     foo.add(y.andnot(x)) ==> this is broken
-
-  - Annotation Tutorial
-
-  - Get at least *some* sort of moderate improvement in the error messages
+      - distinguish Conjunct from Sequence?
+            => !(Conjunct instanceof Reducible)
+  - document the assumption that Sequences that match epsilon
+    must have tag, and that ONLY that tag is returned
+    when the sequence matches epsilon
+  - try to avoid building the parts of the tree that end up getting
+    dropped
+  - double-check all the region logic
 
   ..................................................
 
-  - evil problems with: (x y? z /ws)
-     - it gets even more evil than that
-     - basically, follow restrictions are not honored when the element
-       matches against the empty string
+  - paper/techreport opportunities
+      - interaction between RNGLR and follow restrictions
+      - "doomed node" optimization
+
+  - automatically collect time statistics and display
+  - serializable parse tables?
+  - better ambiguity reporting
+      - colorized tree-diffs?
+      - graphviz?
 
 ______________________________________________________________________________
 v1.1
 
+  - Treewalker code compiler?
+  - circular gramars?
+      s = A
+      A = A | "b"
+  - skeleton generator?
   - precedes restrictions ("<-")
-
   - MUST HAVE BETTER ERROR MESSAGES
      - use for developing java15.g
-
   - java15.g
      - once this is ready, do big announcement
-
-  - topology no longer needed as an arg to parser?
-
   - broader regression testing (for stuff like error messages, etc)
-
   - More topology untangling [later]
-  - tib: use the lexer only for indentation increases/decreases
   - grammar highlighting?
-
   - Forest needs a "manual access" API
-      - the unwrap bit in Forest makes it really hard to expose an API for forests
-
-
+      - the unwrap bit in Forest makes it really hard
+        to expose an API for forests
+  - rewriting language? multiple passes?
 
 ______________________________________________________________________________
 v1.2
@@ -76,6 +85,9 @@ Soon
 ______________________________________________________________________________
 Later
 
+  - understand and implement the RNGLR "kernel state" optimization.
+    The _Practical Early Parsing_ paper may help.
+
   - Partly-Linear-PATR? (O(n^6) unification grammar)
 
   - Implement a k-token peek buffer (for each state, see if it "dead