From 6ab0f101e72331adc13fcdbf03121f249ae387c0 Mon Sep 17 00:00:00 2001
From: glenda <glenda@r51>
Date: Sun, 9 Mar 2025 07:25:05 +0000
Subject: [PATCH] nanpa prefix parsing

---
 nanpa.tal | 83 ++++++++++++++++++++++++++++++++++++-------------------
 1 file changed, 54 insertions(+), 29 deletions(-)

diff --git a/nanpa.tal b/nanpa.tal
index 7507a00ae8104761f22179ce8ff9403ecd8d71cf..214e02ad3fc931bc92dea97a734947c8f60fe56c 100644
--- a/nanpa.tal
+++ b/nanpa.tal
@@ -1,34 +1,49 @@
-|10 @Console &vector $2 &read $1 &pad $5 &write $1 &error $1
+|10 @Console &vector $2 &read $1 &pad $4 &type $1 &write $1 &error $1
 
-|0 @State &seenPrefix $1 &numType $1 &number $1 &err $1 &errChar $1
+|0 @State &numType $1 &number $2 &err $1 &errChar $1
 	@flag $1 @count $1
 
-|0 @NumType &decimal $1 &octal $1 &hexcadecimal $1 &binary
+|0 @NumType &decimal $1 &binary $1 &octal $1 &hexcadecimal $1
 
 
 |100
 @on-reset ( -> )
-	#ffff testnum
-	#efff testnum
-	#8fff testnum
-	#7fff testnum
-	#3fff testnum
-	#2710 testnum
-	#0fff testnum
-	#03e8 testnum
-	#01f4 testnum
-	#000b testnum
+	;on-console
+	.Console/type DEI ?{ ;on-prefix }
+	.Console/vector DEO2
+
 	BRK
 
-@testnum ( num* -- )
-	DUP2 printoctal
-	#09 .Console/write DEO
-	DUP2 printdecimal
-	#09 .Console/write DEO
-	SWP printhex printhex
-	#0a .Console/write DEO
-	JMP2r
+@on-console ( -> )
+	#63 .Console/write DEO
+	.Console/type DEI #04 NEQ ?{ ( ignore args )
+		;on-prefix .Console/vector DEO2
+	} BRK
+
+@on-prefix ( -> )
+	[ LITr 00 ]
+	.Console/read DEI 
+	DUP #30 NEQ ?{ .NumType/octal .State/numType STZ BRK }
+
+	DUP #62 NEQ ?{ .NumType/binary		!&matched }
+	DUP #6f NEQ ?{ .NumType/octal		!&matched }
+	DUP #64 NEQ ?{ .NumType/decimal		!&matched }
+	    #78 NEQ ?{ .NumType/hexcadecimal	!&matched }
+	.State/numType LDZ ( will fallthrough to decimal or octal )
+	LITr 01
+
+	&matched
+	.State/numType STZ
+	;on-digit .Console/vector DEO2
+
+	STHr ?{ BRK } ( passthru if we didn't just match a prefix )
+
+@on-digit ( -> )
+
+	BRK
 
+
+( NUMBER PRINTING ROUTINES )
 @printhex ( num -- )
 	#10 DIVk DUP printhexdigit
 	MUL SUB printhexdigit
@@ -36,7 +51,7 @@
 
 @printdecimal ( num* -- )
 	#01 .flag STZ
-	#00 STH ( return stack is loop counter )
+	[ LITr 00 ]
 	#2710 DIV2k DUP2 NIP DUP #00 EQU ?{
 		DUP printbcddigit
 		#00 .flag STZ
@@ -55,7 +70,7 @@
 
 @printoctal ( num* -- )
 	#01 .flag STZ
-	#00 STH ( return stack is loop counter )
+	[ LITr 00 ]
 	DUP2 #0f SFT2 NIP #00 EQU ?{
 		#31 .Console/write DEO
 		#00 .flag STZ
@@ -72,6 +87,16 @@
 	( end ) ?&loop
 	POPr POP2 JMP2r
 
+@printbinary ( num -- )
+	[ LITr 00 ]
+	&loop
+		DUP #07 SFT #30 ADD
+		.Console/write DEO
+		#10 SFT
+	STHr #01 ADD DUP STH #08 NEQ
+	( end ) ?&loop
+	POPr POP JMP2r
+
 @printhexdigit ( digit -- )
 	#0f AND
 	DUP #0a LTH ?{ #27 ADD } ( take top part, if 10-15 move to a-f )
@@ -83,16 +108,16 @@
 	JMP2r
 
 
-
-@errors
+( STRING DATA )
+@Errors
 	&prefix		={ "error 20 "at 20 "position 20 }
 	&prefix2	={ 20 "with 20 "encoding 20 }
 	&encoding	={ "character 20 "not 20 "valid 20 "in 20 "encoding }
 
-@encodings
-	&decimal	={ "decimal }
+@Encodings
+	&binary		={ "binary }
 	&octal		={ "octal }
+	&decimal	={ "decimal }
 	&hexcadecimal	={ "hexcadecimal }
-	&binary		={ "binary }
-	&tab		=&decimal =&octal =&hexcadecimal =&binary
+	&tab		=&decimal =&binary =&octal =&hexcadecimal