Simplify listener

TODO.FACTOR.txt

@@ -5,8 +5,8 @@ new browser:
 - scroll to existing won't work
 - initial scroll dim is wrong
 - show callers
-listener:
-- show IN:
+
+- alternative way to invoke 2/3 buttons on one-button mice using modifiers
 - list of key bindings
 - RT_WORD should refer to XTs not word objects.
 - services do not launch if factor not running

doc/handbook/tools.facts

@@ -1,6 +1,6 @@
 USING: definitions errors help image inspector io kernel
 listener memory modules parser prettyprint sequences test
-words jedit ;
+words jedit shells ;
 
 ARTICLE: "tools" "Development tools"
 "This section covers words which are used during development, and not usually invoked directly by user code."
@@ -36,10 +36,9 @@ $terpri
 "Note that calls to " { $link .s } " can also be included inside words as a debugging aid, however a more convenient way to achieve this is to use the annotation facility. See " { $link "annotations" } "."
 $terpri
 "You can start a nested listener or exit a listener using the following words:"
-{ $subsection listener }
+{ $subsection tty }
 { $subsection bye }
 "The following variables can be rebound inside a nested scope to customize the behavior of a listener; this can be done to create a development tool with a custom interaction loop:"
-{ $subsection listener-prompt }
 { $subsection listener-hook }
 "Finally, the multi-line expression reading word can be used independently of the rest of the listener:"
 { $subsection read-multiline } ;

library/tools/inspector.factor

@@ -19,27 +19,21 @@ SYMBOL: inspector-stack
     dup summary print
     sheet sheet-numbers sheet. ;
 
-: inspector-help ( -- )
-    terpri
-    "Object inspector." print
-    terpri
-    "inspecting ( -- obj ) push current object" print
-    "go ( n -- ) inspect nth slot" print
-    "up -- return to previous object" print
-    "bye -- exit inspector" print ;
-
-: inspector ( obj -- )
-    [
-        inspector-help
-        terpri
-        "inspector " listener-prompt set
-        V{ } clone inspector-stack set
-        (inspect)
-    ] listener ;
-
-: inspect ( obj -- )
-    inspector-stack get [ (inspect) ] [ inspector ] if ;
-
 : go ( n -- ) 1- inspector-slots get nth (inspect) ;
 
 : up ( -- ) inspector-stack get dup pop* pop (inspect) ;
+
+: inspector-help ( -- )
+    "Object inspector." print
+    terpri
+    "up -- return to previous object" [ up ] print-input
+    "inspecting ( -- obj ) push current object" [ inspecting ] print-input
+    "go ( n -- ) inspect nth slot" print ;
+
+: inspector ( obj -- )
+    inspector-help
+    V{ } clone inspector-stack set
+    (inspect) ;
+
+: inspect ( obj -- )
+    inspector-stack get [ (inspect) ] [ inspector ] if ;

library/tools/listener.factor

@@ -4,13 +4,8 @@ IN: listener
 USING: errors hashtables io kernel math memory namespaces
 parser sequences strings styles vectors words ;
 
-SYMBOL: listener-prompt
 SYMBOL: quit-flag
-
 SYMBOL: listener-hook
-SYMBOL: eval-hook
-
-"ok " listener-prompt set-global
 
 : bye ( -- ) quit-flag on ;
 
@@ -31,21 +26,13 @@ SYMBOL: eval-hook
     ] with-parser in set ;
 
 : listen ( -- )
-    listener-prompt get write flush [
+    in get write "> " write flush [
         listener-hook get call
-        read-multiline [ eval-hook get call ] [ drop bye ] if
+        read-multiline [ call ] [ drop bye ] if
     ] try ;
 
-: (listener) ( -- )
-    quit-flag get [ quit-flag off ] [ listen (listener) ] if ;
-
-: listener ( quot -- )
-    [
-        use [ clone ] change
-        [ call ] eval-hook set
-        call
-        (listener)
-    ] with-scope ;
+: listener ( -- )
+    quit-flag get [ quit-flag off ] [ listen listener ] if ;
 
 : print-banner ( -- )
     "Factor " write version write
@@ -53,7 +40,12 @@ SYMBOL: eval-hook
 
 IN: shells
 
-: tty [ print-banner ] listener ;
+: tty ( -- )
+    [
+        use [ clone ] change
+        print-banner
+        listener
+    ] with-scope ;
 
 IN: listener
 

library/tools/listener.facts

@@ -1,11 +1,8 @@
 IN: listener
-USING: help kernel ;
-
-HELP: listener-prompt
-{ $var-description "Variable holding a string printed before each line of input read by the listener." } ;
+USING: help kernel shells ;
 
 HELP: quit-flag
-{ $var-description "Variable set to true by " { $link bye } " word; it forces the next iteration of the " { $link (listener) } " loop to end." } ;
+{ $var-description "Variable set to true by " { $link bye } " word; it forces the next iteration of the " { $link listener } " loop to end." } ;
 
 HELP: listener-hook
 { $var-description "Variable holding a quotation called by the listener before reading each line of input. The UI sets this variable to a quotation which updates the stack display in a listener gadget." } ;
@@ -22,11 +19,11 @@ HELP: listen
 { $description "Prompts for an expression on the default stream and evaluates it. On end of file, " { $link quit-flag } " is set to terminate the listener loop." }
 { $errors "If the expression input by the user throws an error, the error is printed to the default stream and the word returns normally." } ;
 
-HELP: (listener)
-{ $description "Prompts for expressions on the default stream and evaluates them until end of file is reached. This is an internal word; call " { $link listener } " instead." } ;
-
-HELP: listener
-{ $description "Starts a listener prompting for expressions on the default stream." } ;
-
 HELP: print-banner
 { $description "Print Factor version, operating system, and CPU architecture." } ;
+
+HELP: listener
+{ $description "Prompts for expressions on the default stream and evaluates them until end of file is reached. This is an internal word; call " { $link tty } " instead." } ;
+
+HELP: tty
+{ $description "Starts a listener prompting for expressions on the default stream." } ;