Python code coverage for Modules/cjkcodecs/_codecs_kr.c

#	count	content
1	n/a	/*
2	n/a	* _codecs_kr.c: Codecs collection for Korean encodings
3	n/a	*
4	n/a	* Written by Hye-Shik Chang <perky@FreeBSD.org>
5	n/a	*/
6	n/a
7	n/a	#include "cjkcodecs.h"
8	n/a	#include "mappings_kr.h"
9	n/a
10	n/a	/*
11	n/a	* EUC-KR codec
12	n/a	*/
13	n/a
14	n/a	#define EUCKR_JAMO_FIRSTBYTE 0xA4
15	n/a	#define EUCKR_JAMO_FILLER 0xD4
16	n/a
17	n/a	static const unsigned char u2cgk_choseong[19] = {
18	n/a	0xa1, 0xa2, 0xa4, 0xa7, 0xa8, 0xa9, 0xb1, 0xb2,
19	n/a	0xb3, 0xb5, 0xb6, 0xb7, 0xb8, 0xb9, 0xba, 0xbb,
20	n/a	0xbc, 0xbd, 0xbe
21	n/a	};
22	n/a	static const unsigned char u2cgk_jungseong[21] = {
23	n/a	0xbf, 0xc0, 0xc1, 0xc2, 0xc3, 0xc4, 0xc5, 0xc6,
24	n/a	0xc7, 0xc8, 0xc9, 0xca, 0xcb, 0xcc, 0xcd, 0xce,
25	n/a	0xcf, 0xd0, 0xd1, 0xd2, 0xd3
26	n/a	};
27	n/a	static const unsigned char u2cgk_jongseong[28] = {
28	n/a	0xd4, 0xa1, 0xa2, 0xa3, 0xa4, 0xa5, 0xa6, 0xa7,
29	n/a	0xa9, 0xaa, 0xab, 0xac, 0xad, 0xae, 0xaf, 0xb0,
30	n/a	0xb1, 0xb2, 0xb4, 0xb5, 0xb6, 0xb7, 0xb8, 0xba,
31	n/a	0xbb, 0xbc, 0xbd, 0xbe
32	n/a	};
33	n/a
34	n/a	ENCODER(euc_kr)
35	n/a	{
36	n/a	while (*inpos < inlen) {
37	n/a	Py_UCS4 c = INCHAR1;
38	n/a	DBCHAR code;
39	n/a
40	n/a	if (c < 0x80) {
41	n/a	WRITEBYTE1((unsigned char)c);
42	n/a	NEXT(1, 1);
43	n/a	continue;
44	n/a	}
45	n/a
46	n/a	if (c > 0xFFFF)
47	n/a	return 1;
48	n/a
49	n/a	REQUIRE_OUTBUF(2);
50	n/a	if (TRYMAP_ENC(cp949, code, c))
51	n/a	;
52	n/a	else
53	n/a	return 1;
54	n/a
55	n/a	if ((code & 0x8000) == 0) {
56	n/a	/* KS X 1001 coded character */
57	n/a	OUTBYTE1((code >> 8) \| 0x80);
58	n/a	OUTBYTE2((code & 0xFF) \| 0x80);
59	n/a	NEXT(1, 2);
60	n/a	}
61	n/a	else {
62	n/a	/* Mapping is found in CP949 extension,
63	n/a	but we encode it in KS X 1001:1998 Annex 3,
64	n/a	make-up sequence for EUC-KR. */
65	n/a
66	n/a	REQUIRE_OUTBUF(8);
67	n/a
68	n/a	/* syllable composition precedence */
69	n/a	OUTBYTE1(EUCKR_JAMO_FIRSTBYTE);
70	n/a	OUTBYTE2(EUCKR_JAMO_FILLER);
71	n/a
72	n/a	/* All code points in CP949 extension are in unicode
73	n/a	* Hangul Syllable area. */
74	n/a	assert(0xac00 <= c && c <= 0xd7a3);
75	n/a	c -= 0xac00;
76	n/a
77	n/a	OUTBYTE3(EUCKR_JAMO_FIRSTBYTE);
78	n/a	OUTBYTE4(u2cgk_choseong[c / 588]);
79	n/a	NEXT_OUT(4);
80	n/a
81	n/a	OUTBYTE1(EUCKR_JAMO_FIRSTBYTE);
82	n/a	OUTBYTE2(u2cgk_jungseong[(c / 28) % 21]);
83	n/a	OUTBYTE3(EUCKR_JAMO_FIRSTBYTE);
84	n/a	OUTBYTE4(u2cgk_jongseong[c % 28]);
85	n/a	NEXT(1, 4);
86	n/a	}
87	n/a	}
88	n/a
89	n/a	return 0;
90	n/a	}
91	n/a
92	n/a	#define NONE 127
93	n/a
94	n/a	static const unsigned char cgk2u_choseong[] = { /* [A1, BE] */
95	n/a	0, 1, NONE, 2, NONE, NONE, 3, 4,
96	n/a	5, NONE, NONE, NONE, NONE, NONE, NONE, NONE,
97	n/a	6, 7, 8, NONE, 9, 10, 11, 12,
98	n/a	13, 14, 15, 16, 17, 18
99	n/a	};
100	n/a	static const unsigned char cgk2u_jongseong[] = { /* [A1, BE] */
101	n/a	1, 2, 3, 4, 5, 6, 7, NONE,
102	n/a	8, 9, 10, 11, 12, 13, 14, 15,
103	n/a	16, 17, NONE, 18, 19, 20, 21, 22,
104	n/a	NONE, 23, 24, 25, 26, 27
105	n/a	};
106	n/a
107	n/a	DECODER(euc_kr)
108	n/a	{
109	n/a	while (inleft > 0) {
110	n/a	unsigned char c = INBYTE1;
111	n/a	Py_UCS4 decoded;
112	n/a
113	n/a	if (c < 0x80) {
114	n/a	OUTCHAR(c);
115	n/a	NEXT_IN(1);
116	n/a	continue;
117	n/a	}
118	n/a
119	n/a	REQUIRE_INBUF(2);
120	n/a
121	n/a	if (c == EUCKR_JAMO_FIRSTBYTE &&
122	n/a	INBYTE2 == EUCKR_JAMO_FILLER) {
123	n/a	/* KS X 1001:1998 Annex 3 make-up sequence */
124	n/a	DBCHAR cho, jung, jong;
125	n/a
126	n/a	REQUIRE_INBUF(8);
127	n/a	if ((*inbuf)[2] != EUCKR_JAMO_FIRSTBYTE \|\|
128	n/a	(*inbuf)[4] != EUCKR_JAMO_FIRSTBYTE \|\|
129	n/a	(*inbuf)[6] != EUCKR_JAMO_FIRSTBYTE)
130	n/a	return 1;
131	n/a
132	n/a	c = (*inbuf)[3];
133	n/a	if (0xa1 <= c && c <= 0xbe)
134	n/a	cho = cgk2u_choseong[c - 0xa1];
135	n/a	else
136	n/a	cho = NONE;
137	n/a
138	n/a	c = (*inbuf)[5];
139	n/a	jung = (0xbf <= c && c <= 0xd3) ? c - 0xbf : NONE;
140	n/a
141	n/a	c = (*inbuf)[7];
142	n/a	if (c == EUCKR_JAMO_FILLER)
143	n/a	jong = 0;
144	n/a	else if (0xa1 <= c && c <= 0xbe)
145	n/a	jong = cgk2u_jongseong[c - 0xa1];
146	n/a	else
147	n/a	jong = NONE;
148	n/a
149	n/a	if (cho == NONE \|\| jung == NONE \|\| jong == NONE)
150	n/a	return 1;
151	n/a
152	n/a	OUTCHAR(0xac00 + cho588 + jung28 + jong);
153	n/a	NEXT_IN(8);
154	n/a	}
155	n/a	else if (TRYMAP_DEC(ksx1001, decoded, c ^ 0x80, INBYTE2 ^ 0x80)) {
156	n/a	OUTCHAR(decoded);
157	n/a	NEXT_IN(2);
158	n/a	}
159	n/a	else
160	n/a	return 1;
161	n/a	}
162	n/a
163	n/a	return 0;
164	n/a	}
165	n/a	#undef NONE
166	n/a
167	n/a
168	n/a	/*
169	n/a	* CP949 codec
170	n/a	*/
171	n/a
172	n/a	ENCODER(cp949)
173	n/a	{
174	n/a	while (*inpos < inlen) {
175	n/a	Py_UCS4 c = INCHAR1;
176	n/a	DBCHAR code;
177	n/a
178	n/a	if (c < 0x80) {
179	n/a	WRITEBYTE1((unsigned char)c);
180	n/a	NEXT(1, 1);
181	n/a	continue;
182	n/a	}
183	n/a
184	n/a	if (c > 0xFFFF)
185	n/a	return 1;
186	n/a
187	n/a	REQUIRE_OUTBUF(2);
188	n/a	if (TRYMAP_ENC(cp949, code, c))
189	n/a	;
190	n/a	else
191	n/a	return 1;
192	n/a
193	n/a	OUTBYTE1((code >> 8) \| 0x80);
194	n/a	if (code & 0x8000)
195	n/a	OUTBYTE2(code & 0xFF); /* MSB set: CP949 */
196	n/a	else
197	n/a	OUTBYTE2((code & 0xFF) \| 0x80); /* MSB unset: ks x 1001 */
198	n/a	NEXT(1, 2);
199	n/a	}
200	n/a
201	n/a	return 0;
202	n/a	}
203	n/a
204	n/a	DECODER(cp949)
205	n/a	{
206	n/a	while (inleft > 0) {
207	n/a	unsigned char c = INBYTE1;
208	n/a	Py_UCS4 decoded;
209	n/a
210	n/a	if (c < 0x80) {
211	n/a	OUTCHAR(c);
212	n/a	NEXT_IN(1);
213	n/a	continue;
214	n/a	}
215	n/a
216	n/a	REQUIRE_INBUF(2);
217	n/a	if (TRYMAP_DEC(ksx1001, decoded, c ^ 0x80, INBYTE2 ^ 0x80))
218	n/a	OUTCHAR(decoded);
219	n/a	else if (TRYMAP_DEC(cp949ext, decoded, c, INBYTE2))
220	n/a	OUTCHAR(decoded);
221	n/a	else
222	n/a	return 1;
223	n/a
224	n/a	NEXT_IN(2);
225	n/a	}
226	n/a
227	n/a	return 0;
228	n/a	}
229	n/a
230	n/a
231	n/a	/*
232	n/a	* JOHAB codec
233	n/a	*/
234	n/a
235	n/a	static const unsigned char u2johabidx_choseong[32] = {
236	n/a	0x02, 0x03, 0x04, 0x05, 0x06, 0x07,
237	n/a	0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f,
238	n/a	0x10, 0x11, 0x12, 0x13, 0x14,
239	n/a	};
240	n/a	static const unsigned char u2johabidx_jungseong[32] = {
241	n/a	0x03, 0x04, 0x05, 0x06, 0x07,
242	n/a	0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f,
243	n/a	0x12, 0x13, 0x14, 0x15, 0x16, 0x17,
244	n/a	0x1a, 0x1b, 0x1c, 0x1d,
245	n/a	};
246	n/a	static const unsigned char u2johabidx_jongseong[32] = {
247	n/a	0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07,
248	n/a	0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f,
249	n/a	0x10, 0x11, 0x13, 0x14, 0x15, 0x16, 0x17,
250	n/a	0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d,
251	n/a	};
252	n/a	static const DBCHAR u2johabjamo[] = {
253	n/a	0x8841, 0x8c41, 0x8444, 0x9041, 0x8446, 0x8447, 0x9441,
254	n/a	0x9841, 0x9c41, 0x844a, 0x844b, 0x844c, 0x844d, 0x844e, 0x844f,
255	n/a	0x8450, 0xa041, 0xa441, 0xa841, 0x8454, 0xac41, 0xb041, 0xb441,
256	n/a	0xb841, 0xbc41, 0xc041, 0xc441, 0xc841, 0xcc41, 0xd041, 0x8461,
257	n/a	0x8481, 0x84a1, 0x84c1, 0x84e1, 0x8541, 0x8561, 0x8581, 0x85a1,
258	n/a	0x85c1, 0x85e1, 0x8641, 0x8661, 0x8681, 0x86a1, 0x86c1, 0x86e1,
259	n/a	0x8741, 0x8761, 0x8781, 0x87a1,
260	n/a	};
261	n/a
262	n/a	ENCODER(johab)
263	n/a	{
264	n/a	while (*inpos < inlen) {
265	n/a	Py_UCS4 c = INCHAR1;
266	n/a	DBCHAR code;
267	n/a
268	n/a	if (c < 0x80) {
269	n/a	WRITEBYTE1((unsigned char)c);
270	n/a	NEXT(1, 1);
271	n/a	continue;
272	n/a	}
273	n/a
274	n/a	if (c > 0xFFFF)
275	n/a	return 1;
276	n/a
277	n/a	REQUIRE_OUTBUF(2);
278	n/a
279	n/a	if (c >= 0xac00 && c <= 0xd7a3) {
280	n/a	c -= 0xac00;
281	n/a	code = 0x8000 \|
282	n/a	(u2johabidx_choseong[c / 588] << 10) \|
283	n/a	(u2johabidx_jungseong[(c / 28) % 21] << 5) \|
284	n/a	u2johabidx_jongseong[c % 28];
285	n/a	}
286	n/a	else if (c >= 0x3131 && c <= 0x3163)
287	n/a	code = u2johabjamo[c - 0x3131];
288	n/a	else if (TRYMAP_ENC(cp949, code, c)) {
289	n/a	unsigned char c1, c2, t2;
290	n/a	unsigned short t1;
291	n/a
292	n/a	assert((code & 0x8000) == 0);
293	n/a	c1 = code >> 8;
294	n/a	c2 = code & 0xff;
295	n/a	if (((c1 >= 0x21 && c1 <= 0x2c) \|\|
296	n/a	(c1 >= 0x4a && c1 <= 0x7d)) &&
297	n/a	(c2 >= 0x21 && c2 <= 0x7e)) {
298	n/a	t1 = (c1 < 0x4a ? (c1 - 0x21 + 0x1b2) :
299	n/a	(c1 - 0x21 + 0x197));
300	n/a	t2 = ((t1 & 1) ? 0x5e : 0) + (c2 - 0x21);
301	n/a	OUTBYTE1(t1 >> 1);
302	n/a	OUTBYTE2(t2 < 0x4e ? t2 + 0x31 : t2 + 0x43);
303	n/a	NEXT(1, 2);
304	n/a	continue;
305	n/a	}
306	n/a	else
307	n/a	return 1;
308	n/a	}
309	n/a	else
310	n/a	return 1;
311	n/a
312	n/a	OUTBYTE1(code >> 8);
313	n/a	OUTBYTE2(code & 0xff);
314	n/a	NEXT(1, 2);
315	n/a	}
316	n/a
317	n/a	return 0;
318	n/a	}
319	n/a
320	n/a	#define FILL 0xfd
321	n/a	#define NONE 0xff
322	n/a
323	n/a	static const unsigned char johabidx_choseong[32] = {
324	n/a	NONE, FILL, 0x00, 0x01, 0x02, 0x03, 0x04, 0x05,
325	n/a	0x06, 0x07, 0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d,
326	n/a	0x0e, 0x0f, 0x10, 0x11, 0x12, NONE, NONE, NONE,
327	n/a	NONE, NONE, NONE, NONE, NONE, NONE, NONE, NONE,
328	n/a	};
329	n/a	static const unsigned char johabidx_jungseong[32] = {
330	n/a	NONE, NONE, FILL, 0x00, 0x01, 0x02, 0x03, 0x04,
331	n/a	NONE, NONE, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0a,
332	n/a	NONE, NONE, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, 0x10,
333	n/a	NONE, NONE, 0x11, 0x12, 0x13, 0x14, NONE, NONE,
334	n/a	};
335	n/a	static const unsigned char johabidx_jongseong[32] = {
336	n/a	NONE, FILL, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06,
337	n/a	0x07, 0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e,
338	n/a	0x0f, 0x10, NONE, 0x11, 0x12, 0x13, 0x14, 0x15,
339	n/a	0x16, 0x17, 0x18, 0x19, 0x1a, 0x1b, NONE, NONE,
340	n/a	};
341	n/a
342	n/a	static const unsigned char johabjamo_choseong[32] = {
343	n/a	NONE, FILL, 0x31, 0x32, 0x34, 0x37, 0x38, 0x39,
344	n/a	0x41, 0x42, 0x43, 0x45, 0x46, 0x47, 0x48, 0x49,
345	n/a	0x4a, 0x4b, 0x4c, 0x4d, 0x4e, NONE, NONE, NONE,
346	n/a	NONE, NONE, NONE, NONE, NONE, NONE, NONE, NONE,
347	n/a	};
348	n/a	static const unsigned char johabjamo_jungseong[32] = {
349	n/a	NONE, NONE, FILL, 0x4f, 0x50, 0x51, 0x52, 0x53,
350	n/a	NONE, NONE, 0x54, 0x55, 0x56, 0x57, 0x58, 0x59,
351	n/a	NONE, NONE, 0x5a, 0x5b, 0x5c, 0x5d, 0x5e, 0x5f,
352	n/a	NONE, NONE, 0x60, 0x61, 0x62, 0x63, NONE, NONE,
353	n/a	};
354	n/a	static const unsigned char johabjamo_jongseong[32] = {
355	n/a	NONE, FILL, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36,
356	n/a	0x37, 0x39, 0x3a, 0x3b, 0x3c, 0x3d, 0x3e, 0x3f,
357	n/a	0x40, 0x41, NONE, 0x42, 0x44, 0x45, 0x46, 0x47,
358	n/a	0x48, 0x4a, 0x4b, 0x4c, 0x4d, 0x4e, NONE, NONE,
359	n/a	};
360	n/a
361	n/a	DECODER(johab)
362	n/a	{
363	n/a	while (inleft > 0) {
364	n/a	unsigned char c = INBYTE1, c2;
365	n/a	Py_UCS4 decoded;
366	n/a
367	n/a	if (c < 0x80) {
368	n/a	OUTCHAR(c);
369	n/a	NEXT_IN(1);
370	n/a	continue;
371	n/a	}
372	n/a
373	n/a	REQUIRE_INBUF(2);
374	n/a	c2 = INBYTE2;
375	n/a
376	n/a	if (c < 0xd8) {
377	n/a	/* johab hangul */
378	n/a	unsigned char c_cho, c_jung, c_jong;
379	n/a	unsigned char i_cho, i_jung, i_jong;
380	n/a
381	n/a	c_cho = (c >> 2) & 0x1f;
382	n/a	c_jung = ((c << 3) \| c2 >> 5) & 0x1f;
383	n/a	c_jong = c2 & 0x1f;
384	n/a
385	n/a	i_cho = johabidx_choseong[c_cho];
386	n/a	i_jung = johabidx_jungseong[c_jung];
387	n/a	i_jong = johabidx_jongseong[c_jong];
388	n/a
389	n/a	if (i_cho == NONE \|\| i_jung == NONE \|\| i_jong == NONE)
390	n/a	return 1;
391	n/a
392	n/a	/* we don't use U+1100 hangul jamo yet. */
393	n/a	if (i_cho == FILL) {
394	n/a	if (i_jung == FILL) {
395	n/a	if (i_jong == FILL)
396	n/a	OUTCHAR(0x3000);
397	n/a	else
398	n/a	OUTCHAR(0x3100 \|
399	n/a	johabjamo_jongseong[c_jong]);
400	n/a	}
401	n/a	else {
402	n/a	if (i_jong == FILL)
403	n/a	OUTCHAR(0x3100 \|
404	n/a	johabjamo_jungseong[c_jung]);
405	n/a	else
406	n/a	return 1;
407	n/a	}
408	n/a	} else {
409	n/a	if (i_jung == FILL) {
410	n/a	if (i_jong == FILL)
411	n/a	OUTCHAR(0x3100 \|
412	n/a	johabjamo_choseong[c_cho]);
413	n/a	else
414	n/a	return 1;
415	n/a	}
416	n/a	else
417	n/a	OUTCHAR(0xac00 +
418	n/a	i_cho * 588 +
419	n/a	i_jung * 28 +
420	n/a	(i_jong == FILL ? 0 : i_jong));
421	n/a	}
422	n/a	NEXT_IN(2);
423	n/a	} else {
424	n/a	/* KS X 1001 except hangul jamos and syllables */
425	n/a	if (c == 0xdf \|\| c > 0xf9 \|\|
426	n/a	c2 < 0x31 \|\| (c2 >= 0x80 && c2 < 0x91) \|\|
427	n/a	(c2 & 0x7f) == 0x7f \|\|
428	n/a	(c == 0xda && (c2 >= 0xa1 && c2 <= 0xd3)))
429	n/a	return 1;
430	n/a	else {
431	n/a	unsigned char t1, t2;
432	n/a
433	n/a	t1 = (c < 0xe0 ? 2 * (c - 0xd9) :
434	n/a	2 * c - 0x197);
435	n/a	t2 = (c2 < 0x91 ? c2 - 0x31 : c2 - 0x43);
436	n/a	t1 = t1 + (t2 < 0x5e ? 0 : 1) + 0x21;
437	n/a	t2 = (t2 < 0x5e ? t2 : t2 - 0x5e) + 0x21;
438	n/a
439	n/a	if (TRYMAP_DEC(ksx1001, decoded, t1, t2)) {
440	n/a	OUTCHAR(decoded);
441	n/a	NEXT_IN(2);
442	n/a	}
443	n/a	else {
444	n/a	return 1;
445	n/a	}
446	n/a	}
447	n/a	}
448	n/a	}
449	n/a
450	n/a	return 0;
451	n/a	}
452	n/a	#undef NONE
453	n/a	#undef FILL
454	n/a
455	n/a
456	n/a	BEGIN_MAPPINGS_LIST
457	n/a	MAPPING_DECONLY(ksx1001)
458	n/a	MAPPING_ENCONLY(cp949)
459	n/a	MAPPING_DECONLY(cp949ext)
460	n/a	END_MAPPINGS_LIST
461	n/a
462	n/a	BEGIN_CODECS_LIST
463	n/a	CODEC_STATELESS(euc_kr)
464	n/a	CODEC_STATELESS(cp949)
465	n/a	CODEC_STATELESS(johab)
466	n/a	END_CODECS_LIST
467	n/a
468	n/a	I_AM_A_MODULE_FOR(kr)