From 076ca46bad3e18ea7f4c3b3320ab410c3ebea747 Mon Sep 17 00:00:00 2001
From: Luke Shumaker <lukeshu@lukeshu.com>
Date: Sun, 14 Aug 2022 13:39:28 -0600
Subject: decode: Switch from ReEncoder to Parser

---
 decode.go | 41 ++++++++++++++++++++---------------------
 1 file changed, 20 insertions(+), 21 deletions(-)

(limited to 'decode.go')

diff --git a/decode.go b/decode.go
index 03d5b7a..32912ec 100644
--- a/decode.go
+++ b/decode.go
@@ -561,33 +561,32 @@ func (dec *Decoder) decodeWS() {
 }
 
 func (dec *Decoder) scan(out io.Writer) {
-	scanner := &ReEncoder{
-		Out:     out,
-		Compact: true,
-	}
-	if _, err := scanner.WriteRune(dec.readRune()); err != nil {
-		dec.panicSyntax(err)
-	}
-	scanner.bailAfterCurrent = true
-	var err error
-	var eof bool
-	for err == nil {
+	var scanner Parser
+	for {
 		c, ok := dec.readRuneOrEOF()
+
+		var t RuneType
+		var err error
 		if ok {
-			_, err = scanner.WriteRune(c)
+			t, err = scanner.HandleRune(c)
 		} else {
-			eof = true
-			err = scanner.Flush()
-			break
+			t, err = scanner.HandleEOF()
 		}
-	}
-	if err != nil {
-		if err == errBailedAfterCurrent {
-			if !eof {
+
+		switch t {
+		case RuneTypeError:
+			dec.panicSyntax(err)
+		case RuneTypeEOF:
+			if ok {
 				dec.unreadRune()
 			}
-		} else {
-			dec.panicSyntax(err)
+			return
+		case RuneTypeSpace:
+			// ignore
+		default:
+			if _, err := writeRune(out, c); err != nil {
+				dec.panicIO(err)
+			}
 		}
 	}
 }
-- 
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