355 lines · 7.4 KB · C
RawDownload
/* * _codecs_kr.c: Codecs collection for Korean encodings * * Written by Hye-Shik Chang <perky@FreeBSD.org> */ #include "cjkcodecs.h"#include "mappings_kr.h" /* * EUC-KR codec */ ENCODER(euc_kr){	while (inleft > 0) {		Py_UNICODE c = IN1;		DBCHAR code; 		if (c < 0x80) {			WRITE1((unsigned char)c)			NEXT(1, 1)			continue;		}		UCS4INVALID(c) 		REQUIRE_OUTBUF(2)		TRYMAP_ENC(cp949, code, c);		else return 1; 		if (code & 0x8000) /* MSB set: CP949 */			return 1; 		OUT1((code >> 8) | 0x80)		OUT2((code & 0xFF) | 0x80)		NEXT(1, 2)	} 	return 0;} DECODER(euc_kr){	while (inleft > 0) {		unsigned char c = IN1; 		REQUIRE_OUTBUF(1) 		if (c < 0x80) {			OUT1(c)			NEXT(1, 1)			continue;		} 		REQUIRE_INBUF(2) 		TRYMAP_DEC(ksx1001, **outbuf, c ^ 0x80, IN2 ^ 0x80) {			NEXT(2, 1)		} else return 2;	} 	return 0;}  /* * CP949 codec */ ENCODER(cp949){	while (inleft > 0) {		Py_UNICODE c = IN1;		DBCHAR code; 		if (c < 0x80) {			WRITE1((unsigned char)c)			NEXT(1, 1)			continue;		}		UCS4INVALID(c) 		REQUIRE_OUTBUF(2)		TRYMAP_ENC(cp949, code, c);		else return 1; 		OUT1((code >> 8) | 0x80)		if (code & 0x8000)			OUT2(code & 0xFF) /* MSB set: CP949 */		else			OUT2((code & 0xFF) | 0x80) /* MSB unset: ks x 1001 */		NEXT(1, 2)	} 	return 0;} DECODER(cp949){	while (inleft > 0) {		unsigned char c = IN1; 		REQUIRE_OUTBUF(1) 		if (c < 0x80) {			OUT1(c)			NEXT(1, 1)			continue;		} 		REQUIRE_INBUF(2)		TRYMAP_DEC(ksx1001, **outbuf, c ^ 0x80, IN2 ^ 0x80);		else TRYMAP_DEC(cp949ext, **outbuf, c, IN2);		else return 2; 		NEXT(2, 1)	} 	return 0;}  /* * JOHAB codec */ static const unsigned char u2johabidx_choseong[32] = {                0x02, 0x03, 0x04, 0x05, 0x06, 0x07,    0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f,    0x10, 0x11, 0x12, 0x13, 0x14,};static const unsigned char u2johabidx_jungseong[32] = {                      0x03, 0x04, 0x05, 0x06, 0x07,                0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f,                0x12, 0x13, 0x14, 0x15, 0x16, 0x17,                0x1a, 0x1b, 0x1c, 0x1d,};static const unsigned char u2johabidx_jongseong[32] = {          0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07,    0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f,    0x10, 0x11,       0x13, 0x14, 0x15, 0x16, 0x17,    0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d,};static const DBCHAR u2johabjamo[] = {            0x8841, 0x8c41, 0x8444, 0x9041, 0x8446, 0x8447, 0x9441,    0x9841, 0x9c41, 0x844a, 0x844b, 0x844c, 0x844d, 0x844e, 0x844f,    0x8450, 0xa041, 0xa441, 0xa841, 0x8454, 0xac41, 0xb041, 0xb441,    0xb841, 0xbc41, 0xc041, 0xc441, 0xc841, 0xcc41, 0xd041, 0x8461,    0x8481, 0x84a1, 0x84c1, 0x84e1, 0x8541, 0x8561, 0x8581, 0x85a1,    0x85c1, 0x85e1, 0x8641, 0x8661, 0x8681, 0x86a1, 0x86c1, 0x86e1,    0x8741, 0x8761, 0x8781, 0x87a1,}; ENCODER(johab){	while (inleft > 0) {		Py_UNICODE c = IN1;		DBCHAR code; 		if (c < 0x80) {			WRITE1((unsigned char)c)			NEXT(1, 1)			continue;		}		UCS4INVALID(c) 		REQUIRE_OUTBUF(2) 		if (c >= 0xac00 && c <= 0xd7a3) {			c -= 0xac00;			code = 0x8000 |				(u2johabidx_choseong[c / 588] << 10) |				(u2johabidx_jungseong[(c / 28) % 21] << 5) |				u2johabidx_jongseong[c % 28];		}		else if (c >= 0x3131 && c <= 0x3163)			code = u2johabjamo[c - 0x3131];		else TRYMAP_ENC(cp949, code, c) {			unsigned char c1, c2, t2;			unsigned short t1; 			assert((code & 0x8000) == 0);			c1 = code >> 8;			c2 = code & 0xff;			if (((c1 >= 0x21 && c1 <= 0x2c) ||			    (c1 >= 0x4a && c1 <= 0x7d)) &&			    (c2 >= 0x21 && c2 <= 0x7e)) {				t1 = (c1 < 0x4a ? (c1 - 0x21 + 0x1b2) :						  (c1 - 0x21 + 0x197));				t2 = ((t1 & 1) ? 0x5e : 0) + (c2 - 0x21);				OUT1(t1 >> 1)				OUT2(t2 < 0x4e ? t2 + 0x31 : t2 + 0x43)				NEXT(1, 2)				continue;			}			else				return 1;		}		else			return 1; 		OUT1(code >> 8)		OUT2(code & 0xff)		NEXT(1, 2)	} 	return 0;} #define FILL 0xfd#define NONE 0xff static const unsigned char johabidx_choseong[32] = {    NONE, FILL, 0x00, 0x01, 0x02, 0x03, 0x04, 0x05,    0x06, 0x07, 0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d,    0x0e, 0x0f, 0x10, 0x11, 0x12, NONE, NONE, NONE,    NONE, NONE, NONE, NONE, NONE, NONE, NONE, NONE,};static const unsigned char johabidx_jungseong[32] = {    NONE, NONE, FILL, 0x00, 0x01, 0x02, 0x03, 0x04,    NONE, NONE, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0a,    NONE, NONE, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, 0x10,    NONE, NONE, 0x11, 0x12, 0x13, 0x14, NONE, NONE,};static const unsigned char johabidx_jongseong[32] = {    NONE, FILL, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06,    0x07, 0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e,    0x0f, 0x10, NONE, 0x11, 0x12, 0x13, 0x14, 0x15,    0x16, 0x17, 0x18, 0x19, 0x1a, 0x1b, NONE, NONE,}; static const unsigned char johabjamo_choseong[32] = {    NONE, FILL, 0x31, 0x32, 0x34, 0x37, 0x38, 0x39,    0x41, 0x42, 0x43, 0x45, 0x46, 0x47, 0x48, 0x49,    0x4a, 0x4b, 0x4c, 0x4d, 0x4e, NONE, NONE, NONE,    NONE, NONE, NONE, NONE, NONE, NONE, NONE, NONE,};static const unsigned char johabjamo_jungseong[32] = {    NONE, NONE, FILL, 0x4f, 0x50, 0x51, 0x52, 0x53,    NONE, NONE, 0x54, 0x55, 0x56, 0x57, 0x58, 0x59,    NONE, NONE, 0x5a, 0x5b, 0x5c, 0x5d, 0x5e, 0x5f,    NONE, NONE, 0x60, 0x61, 0x62, 0x63, NONE, NONE,};static const unsigned char johabjamo_jongseong[32] = {    NONE, FILL, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36,    0x37, 0x39, 0x3a, 0x3b, 0x3c, 0x3d, 0x3e, 0x3f,    0x40, 0x41, NONE, 0x42, 0x44, 0x45, 0x46, 0x47,    0x48, 0x4a, 0x4b, 0x4c, 0x4d, 0x4e, NONE, NONE,}; DECODER(johab){	while (inleft > 0) {		unsigned char    c = IN1, c2; 		REQUIRE_OUTBUF(1) 		if (c < 0x80) {			OUT1(c)			NEXT(1, 1)			continue;		} 		REQUIRE_INBUF(2)		c2 = IN2; 		if (c < 0xd8) {			/* johab hangul */			unsigned char c_cho, c_jung, c_jong;			unsigned char i_cho, i_jung, i_jong; 			c_cho = (c >> 2) & 0x1f;			c_jung = ((c << 3) | c2 >> 5) & 0x1f;			c_jong = c2 & 0x1f; 			i_cho = johabidx_choseong[c_cho];			i_jung = johabidx_jungseong[c_jung];			i_jong = johabidx_jongseong[c_jong]; 			if (i_cho == NONE || i_jung == NONE || i_jong == NONE)				return 2; 			/* we don't use U+1100 hangul jamo yet. */			if (i_cho == FILL) {				if (i_jung == FILL) {					if (i_jong == FILL)						OUT1(0x3000)					else						OUT1(0x3100 |						  johabjamo_jongseong[c_jong])				}				else {					if (i_jong == FILL)						OUT1(0x3100 |						  johabjamo_jungseong[c_jung])					else						return 2;				}			} else {				if (i_jung == FILL) {					if (i_jong == FILL)						OUT1(0x3100 |						  johabjamo_choseong[c_cho])					else						return 2;				}				else					OUT1(0xac00 +					     i_cho * 588 +					     i_jung * 28 +					     (i_jong == FILL ? 0 : i_jong))			}			NEXT(2, 1)		} else {			/* KS X 1001 except hangul jamos and syllables */			if (c == 0xdf || c > 0xf9 ||			    c2 < 0x31 || (c2 >= 0x80 && c2 < 0x91) ||			    (c2 & 0x7f) == 0x7f ||			    (c == 0xda && (c2 >= 0xa1 && c2 <= 0xd3)))				return 2;			else {				unsigned char t1, t2; 				t1 = (c < 0xe0 ? 2 * (c - 0xd9) :						 2 * c - 0x197);				t2 = (c2 < 0x91 ? c2 - 0x31 : c2 - 0x43);				t1 = t1 + (t2 < 0x5e ? 0 : 1) + 0x21;				t2 = (t2 < 0x5e ? t2 : t2 - 0x5e) + 0x21; 				TRYMAP_DEC(ksx1001, **outbuf, t1, t2);				else return 2;				NEXT(2, 1)			}		}	} 	return 0;}#undef NONE#undef FILL  BEGIN_MAPPINGS_LIST  MAPPING_DECONLY(ksx1001)  MAPPING_ENCONLY(cp949)  MAPPING_DECONLY(cp949ext)END_MAPPINGS_LIST BEGIN_CODECS_LIST  CODEC_STATELESS(euc_kr)  CODEC_STATELESS(cp949)  CODEC_STATELESS(johab)END_CODECS_LIST I_AM_A_MODULE_FOR(kr)