Remove hg dep

modules/mahonia/euc-kr.go

@@ -0,0 +1,89 @@
+package mahonia
+
+// Converters for the EUC-KR encoding.
+
+import (
+	"unicode/utf8"
+)
+
+func init() {
+	RegisterCharset(&Charset{
+		Name: "EUC-KR",
+		Aliases: []string{
+			"ibm-1363",
+			"KS_C_5601-1987",
+			"KS_C_5601-1989",
+			"KSC_5601",
+			"Korean",
+			"iso-ir-149",
+			"cp1363",
+			"5601",
+			"ksc",
+			"windows-949",
+			"ibm-970",
+			"cp970",
+			"970",
+			"cp949",
+		},
+		NewDecoder: func() Decoder {
+			return decodeEucKr
+		},
+		NewEncoder: func() Encoder {
+			eucKrOnce.Do(reverseEucKrTable)
+			return encodeEucKr
+		},
+	})
+}
+
+func decodeEucKr(p []byte) (c rune, size int, status Status) {
+	if len(p) == 0 {
+		return 0, 0, NO_ROOM
+	}
+
+	b := p[0]
+	if b < 0x80 {
+		return rune(b), 1, SUCCESS
+	}
+
+	if len(p) < 2 {
+		return 0, 0, NO_ROOM
+	}
+
+	euc := int(b)<<8 + int(p[1])
+	c = rune(eucKrToUnicode[euc])
+
+	if c == 0 {
+		return utf8.RuneError, 2, INVALID_CHAR
+	}
+	return c, 2, SUCCESS
+}
+
+func encodeEucKr(p []byte, c rune) (size int, status Status) {
+	if len(p) == 0 {
+		return 0, NO_ROOM
+	}
+
+	if c < 0x80 {
+		p[0] = byte(c)
+		return 1, SUCCESS
+	}
+
+	if len(p) < 2 {
+		return 0, NO_ROOM
+	}
+
+	if c > 0xffff {
+		p[0] = '?'
+		return 1, INVALID_CHAR
+	}
+
+	euc := unicodeToEucKr[c]
+	if euc == 0 {
+		p[0] = '?'
+		return 1, INVALID_CHAR
+	}
+
+	p[0] = byte(euc >> 8)
+	p[1] = byte(euc)
+	return 2, SUCCESS
+}