From dd4181dc82af5298f6e7a2204034ff1f58286e43 Mon Sep 17 00:00:00 2001
From: Hajime Nakagami <nakagami@gmail.com>
Date: Sat, 1 Jun 2024 13:40:38 +0900
Subject: [PATCH] Revert "feat: Add character encoding conversion function"

---
 wireprotocol.go | 121 ------------------------------------------------
 1 file changed, 121 deletions(-)

diff --git a/wireprotocol.go b/wireprotocol.go
index b9cbd09..6f73dfd 100644
--- a/wireprotocol.go
+++ b/wireprotocol.go
@@ -33,11 +33,6 @@ import (
 	"encoding/hex"
 	"errors"
 	"fmt"
-	"golang.org/x/text/encoding/charmap"
-	"golang.org/x/text/encoding/japanese"
-	"golang.org/x/text/encoding/korean"
-	"golang.org/x/text/encoding/simplifiedchinese"
-	"golang.org/x/text/encoding/traditionalchinese"
 	"math/big"
 	"net"
 	"os"
@@ -1393,7 +1388,6 @@ func (p *wireProtocol) paramsToBlr(transHandle int32, params []driver.Value, pro
 	for _, param := range params {
 		switch f := param.(type) {
 		case string:
-			f = p.encodeString(f)
 			b := str_to_bytes(f)
 			if len(b) < MAX_CHAR_LENGTH {
 				blr, v = _bytesToBlr(b)
@@ -1505,118 +1499,3 @@ func (p *wireProtocol) opCancel(kind int) error {
 	_, err := p.sendPackets()
 	return err
 }
-
-func (p *wireProtocol) encodeString(str string) string {
-	switch p.charset {
-	case "OCTETS":
-		return str
-	case "UNICODE_FSS", "UTF8":
-		return str
-	case "SJIS_0208":
-		enc := japanese.ShiftJIS.NewEncoder()
-		v, _ := enc.String(str)
-		return v
-	case "EUCJ_0208":
-		enc := japanese.EUCJP.NewEncoder()
-		v, _ := enc.String(str)
-		return v
-	case "ISO8859_1":
-		enc := charmap.ISO8859_1.NewEncoder()
-		v, _ := enc.String(str)
-		return v
-	case "ISO8859_2":
-		enc := charmap.ISO8859_2.NewEncoder()
-		v, _ := enc.String(str)
-		return v
-	case "ISO8859_3":
-		enc := charmap.ISO8859_3.NewEncoder()
-		v, _ := enc.String(str)
-		return v
-	case "ISO8859_4":
-		enc := charmap.ISO8859_5.NewEncoder()
-		v, _ := enc.String(str)
-		return v
-	case "ISO8859_5":
-		enc := charmap.ISO8859_5.NewEncoder()
-		v, _ := enc.String(str)
-		return v
-	case "ISO8859_6":
-		enc := charmap.ISO8859_6.NewEncoder()
-		v, _ := enc.String(str)
-		return v
-	case "ISO8859_7":
-		enc := charmap.ISO8859_7.NewEncoder()
-		v, _ := enc.String(str)
-		return v
-	case "ISO8859_8":
-		enc := charmap.ISO8859_8.NewEncoder()
-		v, _ := enc.String(str)
-		return v
-	case "ISO8859_9":
-		enc := charmap.ISO8859_9.NewEncoder()
-		v, _ := enc.String(str)
-		return v
-	case "ISO8859_13":
-		enc := charmap.ISO8859_13.NewEncoder()
-		v, _ := enc.String(str)
-		return v
-	case "KSC_5601":
-		enc := korean.EUCKR.NewEncoder()
-		v, _ := enc.String(str)
-		return v
-	case "WIN1250":
-		enc := charmap.Windows1250.NewEncoder()
-		v, _ := enc.String(str)
-		return v
-	case "WIN1251":
-		enc := charmap.Windows1251.NewEncoder()
-		v, _ := enc.String(str)
-		return v
-	case "WIN1252":
-		enc := charmap.Windows1252.NewEncoder()
-		v, _ := enc.String(str)
-		return v
-	case "WIN1253":
-		enc := charmap.Windows1252.NewEncoder()
-		v, _ := enc.String(str)
-		return v
-	case "WIN1254":
-		enc := charmap.Windows1252.NewEncoder()
-		v, _ := enc.String(str)
-		return v
-	case "BIG_5":
-		enc := traditionalchinese.Big5.NewEncoder()
-		v, _ := enc.String(str)
-		return v
-	case "GB_2312":
-		enc := simplifiedchinese.HZGB2312.NewEncoder()
-		v, _ := enc.String(str)
-		return v
-	case "WIN1255":
-		enc := charmap.Windows1255.NewEncoder()
-		v, _ := enc.String(str)
-		return v
-	case "WIN1256":
-		enc := charmap.Windows1256.NewEncoder()
-		v, _ := enc.String(str)
-		return v
-	case "WIN1257":
-		enc := charmap.Windows1257.NewEncoder()
-		v, _ := enc.String(str)
-		return v
-	case "KOI8R":
-		enc := charmap.KOI8R.NewEncoder()
-		v, _ := enc.String(str)
-		return v
-	case "KOI8U":
-		enc := charmap.KOI8U.NewEncoder()
-		v, _ := enc.String(str)
-		return v
-	case "WIN1258":
-		enc := charmap.Windows1258.NewEncoder()
-		v, _ := enc.String(str)
-		return v
-	default:
-		return str // If the specified charset is not supported, return the input string without any modification or encoding.
-	}
-}