keithkim / cusp Goto Github PK

Using latest CUSP from the update site:
From shell, pgrep for your lisp executable name.

Start Eclipse with CUSP.

From shell, pgrep for your lisp executable name.  Note that there is one
Lisp process.

Hit the reconnect button in the REPL tab.  

From shell, pgrep for your lisp executable name.  Note that there are two
Lisp processes.

Exit Eclipse.

From shell, pgrep for your lisp executable name.  Note that there are two
Lisp processes.

Assume the option of using "[" to enclose next sexp in "()" is activated
(from Window > Preferences > Lisp > Editing). 

Follow the instructions bellow to reproduce the behaviour. After each
instruction is an illustrations of its output, where the symbol "|"
represents the cursor position.

1. Put the cursor right before a certain sexp (0, for example):
    |0
2. press "[", you'll get something like:
    (| 0)
3. press Ctrl+Z to undo the previuos action, and you'll get:
    0|
   with the sexp being selected!

The undo action (Ctrl+Z) should put the editor in its previous state, that was:
    |0
with the cursor before the sexp (where it originally was) and without
selecting the sexp at all.

So there are two problems after using "[" + undo:
 - the position of the cursor is changed and
 - the sexp is selected.

This was observed with Cusp 1.0.414
(early released at cusp-development group, see
http://groups.google.com/group/cusp-development/browse_thread/thread/15a3a92e9e4
2fcfb)
and Eclipse 3.5.0 on Ubuntu Linux.