1 files changed, 40 insertions, 14 deletions
diff --git a/runtime/start.apl b/runtime/start.apl
index 46a0703..c98462e 100644
--- a/runtime/start.apl
+++ b/runtime/start.apl
@@ -1,15 +1,41 @@
-send←⍈ ⍝ I can't type those easily so give them names
-recv←⍇
-prompt←6⍴' '
-session←{
-	(task data)←{1 ⍵} recv ⍬
-	⎕rawio←{¯1≡⍵:'???:' ⋄ ⍵,':'} task ⎕tasks 1
-	⎕rawio←data
-	⍞rawio←prompt
-	∇⍵
-}
-
+⎕session←{
+	(indented main prompt)←⍵
+	unindent←{
+		⎕rawio←⎕ucs ⍺⍴8
+	}
+	handleError←{
+		0::⍺
+		(task (error msg taskname))←⍵
+		⎕rawio←error,' in [',(⍕task),':',taskname,']'
+		_←{⎕rawio←': ', msg} IF msg≢''
+		⎕rawio←⎕ucs 10
+		⎕rawio←prompt
+		≢prompt
+	}
+	handleQuad←{
+		0::⍺
+		data←⍵
+		⎕rawio←data
+		⎕rawio←⎕ucs 10
+		⎕rawio←prompt
+		≢prompt
+	}
+	handleQuoteQuad←{
+		0::⍺
+		data←⍵
+		⎕rawio←data
+		⍺
+	}
+	handle←{
+		0::⍺
+		(task (type data))←⍵
+		indented←⍺
+		_←indented∘unindent IF (indented>0)∧task≢main
+		type≡'!': 0 handleError task data
+		type≡'⎕': 0 handleQuad data 
+		type≡'⍞': 0 handleQuoteQuad data
+		⍵
+	}
+	{∇ ⍵ handle {1 ⍵}⍇⍬} indented
+}&'session'⊢0 ⎕self (6⍴' ')
 ⎕←'Welcome to APL9'
-⍞rawio←prompt
-
-⎕session←session&'session'⊢⍬
-\ No newline at end of file