Separate packages for config and command evaluation

Evaluate config options

scheme/config.scm

@@ -30,7 +30,7 @@
 	       (symbol? (cdar option.value))
 	       (assoc (car option.value) *configuration*))
 	  => (lambda (p)
-	       (set-cdr! p (cdr option.value))))
+	       (set-cdr! p (eval-s-expr (cdr option.value) 'commander-s-config-eval))))
 	 (else
 	  (error "Unknown option value or ill-formed option" 
 		 option.value conf-file))))

scheme/eval-environment.scm

@@ -29,10 +29,17 @@
   (let ((string-port (open-input-string string)))
     (read string-port)))
 
-(define (eval-string str)
-  (eval (read-sexp-from-string str)
-        (evaluation-environment)))
+(define (eval-string str . maybe-package-name)
+  (apply eval-s-expr (read-sexp-from-string str) maybe-package-name))
+
+(define (eval-s-expr s-expr . maybe-package-name)
+  (let ((env (if (null? maybe-package-name)
+                 (evaluation-environment)
+                 (load-evaluation-environment (car maybe-package-name)))))
+    (eval s-expr env)))
+
+(define (eval-s-expr/command s-expr)
+  (let ((command-env (load-evaluation-environment 'nuit-eval)))
+    (eval s-expr command-env)))
 
-(define (eval-s-expr s-expr)
-  (eval s-expr (evaluation-environment)))
 

scheme/job.scm

@@ -307,7 +307,7 @@
 	(fork-pty-session
 	 (lambda () 
            (handle-signal-default signal/ttou)
-	   (eval-s-expr s-expr))))
+	   (eval-s-expr/command s-expr))))
     (lambda (proc pty-in pty-out tty-name)
       (make-job-with-console
        s-expr proc pty-in pty-out
@@ -342,7 +342,7 @@
                  (set-process-group child-pid)
                  (set-tty-process-group (current-output-port) child-pid)
                  (handle-signal-default signal/ttou)
-                 (eval-s-expr s-expr))))))
+                 (eval-s-expr/command s-expr))))))
        (let* ((job (make-job-sans-console s-expr proc))
 	      (status (job-status job)))
 	 (set-tty-process-group (current-output-port) foreground-pgrp)
@@ -367,7 +367,7 @@
 	  (lambda ()
 	    (set-process-group (pid) (pid))
             (handle-signal-default signal/ttou)
-	    (eval-s-expr s-expr)))))
+	    (eval-s-expr/command s-expr)))))
     (let ((job (make-job-sans-console s-expr proc)))
       (release-lock paint-lock)
       job)))

scheme/nuit-engine.scm

@@ -19,6 +19,7 @@
 (define-option 'main 'switch-command-buffer-mode-key key-f7)
 (define-option 'main 'help-key (char->ascii #\?))
 (define-option 'main 'quit-help-key (char->ascii #\q))
+(define-option 'main 'show-shell-key key-end)
 
 ;; mode of the command buffer
 (define-option 'main 'initial-command-mode 'command)
@@ -457,6 +458,10 @@
 (define (process-group-leader?)
   (= (process-group) (pid)))
 
+;; config needs this to be initialized
+(init-evaluation-environment! 'nuit-eval)
+
+;; there are top-level expressions accessing the configuration...
 (read-config-file!)
 
 ;; handle input
@@ -471,8 +476,6 @@
 
   (set! *command-buffer-mode* (config 'main 'initial-command-mode))
   
-  (init-evaluation-environment! 'nuit-eval)
-
   (clear)
   (if (not (process-group-leader?))
       (become-session-leader))
@@ -560,7 +563,8 @@
 (define (define-key! key handler)
   (vector-set! *key-map* key handler))
 
-(define-key! key-end ;; TODO does not work?!? 
+
+(define-key! (config 'main 'show-shell-key)
           (lambda (ch) (show-shell-screen) (paint)))
 
 (define-key! key-f2 (lambda (ch) (paint)))
@@ -879,8 +883,8 @@
   (define header-line "Select completion")
   (define header-length (string-length header-line))
 
-  (let* ((lines (min (- (LINES) 5)
-                     (length completions)))
+  (let* ((lines (+ 2 (min (- (LINES) 5)
+                          (length completions))))
          (inner-width
           (min (apply max header-length
                       (map string-length completions))

scheme/nuit-packages.scm

@@ -545,6 +545,12 @@
    pps)
   (files eval))
 
+(define-structure commander-s-config-eval (compound-interface
+                                           (interface-of scheme-with-scsh)
+                                           ncurses-interface)
+  (open scheme-with-scsh
+        ncurses))
+
 ;;; evaluation of Scheme expressions
 
 (define-interface eval-environment-interface
@@ -554,7 +560,8 @@
    evaluation-environment
    evaluation-environment-name
    eval-string
-   eval-s-expr))
+   eval-s-expr
+   eval-s-expr/command))
 
 (define-structure eval-environment eval-environment-interface
   (open scheme
@@ -943,7 +950,9 @@
 (define-structure configuration configuration-interface
   (open scheme-with-scsh
 	signals
-	handle-fatal-error)
+	handle-fatal-error
+
+        eval-environment)
   (files config))
 
 ;;; modal window

scheme/std-command.scm

@@ -98,7 +98,7 @@
 	 (expanded (expand-command-line parsed))
 	 (s-expr (compile-command-line expanded)))
     (debug-message "Compiled command " s-expr)
-    (eval-s-expr s-expr)))
+    (eval-s-expr/command s-expr)))
 
 (define standard-command-plugin
   (make-command-plugin #f