[error] AWT-EventQueue-0: java.lang.NullPointerException
[error] AWT-EventQueue-0:  at org.gjt.sp.jedit.Buffer.markTokens(Buffer.java:2109)
[error] AWT-EventQueue-0:  at factor.jedit.WordPreview.getWordAtCaret(WordPreview.java:95)
[error] AWT-EventQueue-0:  at factor.jedit.WordPreview.showPreview(WordPreview.java:137)
[error] AWT-EventQueue-0:  at factor.jedit.WordPreview.actionPerformed(WordPreview.java:79)
[error] AWT-EventQueue-0:  at javax.swing.Timer.fireActionPerformed(Timer.java:271)

+ inference/dataflow:

- type inference
- handle odd base cases, with code after ifte
- handle recursion with when, when* etc

+ linearizer/generator:

- peephole optimizer
- getenv/setenv: if literal arg, compile as a load/store
- compiler: drop literal peephole optimization

+ compiler frontend:

- assembler opcodes dispatch on operand types
- save code in image
- compile word twice; no more 'cannot compile' error!

+ oop:

- union metaclass
- make M: order-independent
- bootstrapping generic words
- 2generic
- move generic, 2generic from kernel vocabulary
- generic = hashcode and math ops

+ ffi:

- is signed -vs- unsigned pointers an issue?
- bitfields in C structs
- SDL_Rect** type
- struct membres that are not *
- FFI float types

+ listener/plugin:

- word added >1 
- sidekick: still parsing too much
- errors don't always disappear
- console: wrong history
- listener: if too many things popped off the stack, complain
- NPE in ErrorHighlight
- some way to not have previous definitions from a source file
  clutter the namespace
- maple-like: press enter at old commands to evaluate there
- completion in the listener
- special completion for USE:/IN:

+ kernel:

- profiler is inaccurate: wrong word on cs
- better i/o scheduler
- remove sbufs
- cat, reverse-cat primitives
- first-class hashtables
- rewrite accessors and mutators in Factor, with slot/set-slot primitive
- replace -export-dynamic with sundry-xt
- add a socket timeout

+ misc:

- step: print NEXT word to execute, not word that JUST executed
- perhaps /i should work with all numbers
- unit test weirdness: 2 lines appears at end
- jedit ==> jedit-word, jedit takes a file name
- command line parsing cleanup
- nicer way to combine two paths
- ditch object paths
- browser responder for word links in HTTPd; inspect responder for
  objects
- worddef props
- prettyprint: when unparse called due to recursion, write a link

+ httpd:

- log with date
- file responder; last-modified field