8 #define SD WC_UTF7_MAP_SET_D
9 #define SO WC_UTF7_MAP_SET_O
10 #define SB WC_UTF7_MAP_SET_B
11 #define BB WC_UTF7_MAP_BASE64
12 #define BP WC_UTF7_MAP_PLUS
13 #define BM WC_UTF7_MAP_MINUS
14 #define CD (WC_UTF7_MAP_SET_D | WC_UTF7_MAP_C0)
15 #define CB (WC_UTF7_MAP_SET_B | WC_UTF7_MAP_C0)
16 #define C1 WC_UTF7_MAP_C1
18 wc_uint8 WC_UTF7_MAP[ 0x100 ] = {
20 CB, CB, CB, CB, CB, CB, CB, CB, CB, CD, CD, CB, CB, CD, CB, CB,
22 CB, CB, CB, CB, CB, CB, CB, CB, CB, CB, CB, CB, CB, CB, CB, CB,
23 /* SP ! " # $ % & ' ( ) * + , - . / */
24 SD, SO, SO, SO, SO, SO, SO, SD, SD, SD, SO, BP, SD, BM, SD, BB,
25 /* 0 1 2 3 4 5 6 7 8 9 : ; < = > ? */
26 BB, BB, BB, BB, BB, BB, BB, BB, BB, BB, SD, SO, SO, SO, SO, SD,
27 /* @ A B C D E F G H I J K L M N O */
28 BB, BB, BB, BB, BB, BB, BB, BB, BB, BB, BB, BB, BB, BB, BB, BB,
29 /* P Q R S T U V W X Y Z [ \ ] ^ _ */
30 BB, BB, BB, BB, BB, BB, BB, BB, BB, BB, BB, SO, SB, SO, SO, SO,
31 /* ` a b c d e f g h i j k l m n o */
32 SO, BB, BB, BB, BB, BB, BB, BB, BB, BB, BB, BB, BB, BB, BB, BB,
33 /* p q r s t u v w x y z { | } ~ DEL */
34 BB, BB, BB, BB, BB, BB, BB, BB, BB, BB, BB, SO, SO, SO, SB, CB,
36 C1, C1, C1, C1, C1, C1, C1, C1, C1, C1, C1, C1, C1, C1, C1, C1,
37 C1, C1, C1, C1, C1, C1, C1, C1, C1, C1, C1, C1, C1, C1, C1, C1,
38 C1, C1, C1, C1, C1, C1, C1, C1, C1, C1, C1, C1, C1, C1, C1, C1,
39 C1, C1, C1, C1, C1, C1, C1, C1, C1, C1, C1, C1, C1, C1, C1, C1,
40 C1, C1, C1, C1, C1, C1, C1, C1, C1, C1, C1, C1, C1, C1, C1, C1,
41 C1, C1, C1, C1, C1, C1, C1, C1, C1, C1, C1, C1, C1, C1, C1, C1,
42 C1, C1, C1, C1, C1, C1, C1, C1, C1, C1, C1, C1, C1, C1, C1, C1,
43 C1, C1, C1, C1, C1, C1, C1, C1, C1, C1, C1, C1, C1, C1, C1, C1,
46 static char c_base64_map[ 0x60 ] = {
47 -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 62, -1, -1, -1, 63,
48 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, -1, -1, -1, -1, -1, -1,
49 -1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14,
50 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, -1, -1, -1, -1, -1,
51 -1, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40,
52 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, -1, -1, -1, -1, -1,
55 static char base64_c_map[] =
56 "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
58 #define BASE64_C(x) base64_c_map[(x)]
59 #define C_BASE64(x) c_base64_map[(x) - 0x20]
62 wc_conv_from_utf7(Str is, wc_ces ces)
65 wc_uchar *sp = (wc_uchar *)is->ptr;
66 wc_uchar *ep = sp + is->length;
68 int state = WC_UTF7_NOSTATE;
69 wc_uint32 b, high = 0;
72 for (p = sp; p < ep && *p < 0x80 && *p != WC_C_UTF7_PLUS; p++)
76 os = Strnew_size(is->length * 4 / 3);
78 Strcat_charp_n(os, is->ptr, (int)(p - sp));
85 if (*p == WC_C_UTF7_PLUS) {
94 if (*p == WC_C_UTF7_MINUS)
95 wtf_push_ucs(os, (wc_uint32)WC_C_UTF7_PLUS, &st);
97 switch (WC_UTF7_MAP[*p]) {
98 case BB: /* [A-Za-z0-9/] */
103 st.base |= b >> (- st.shift);
104 if (st.base >= WC_C_UCS2_SURROGATE &&
105 st.base < WC_C_UCS2_SURROGATE_LOW) {
109 high = 0; /* error */
110 } else if (st.base >= WC_C_UCS2_SURROGATE_LOW &&
111 st.base <= WC_C_UCS2_SURROGATE_END) {
113 wtf_push_ucs(os, wc_utf16_to_ucs(high, st.base), &st);
114 /* else; */ /* error */
116 } else if (st.base != WC_C_UCS2_BOM)
117 wtf_push_ucs(os, st.base, &st);
121 st.base |= (b << st.shift) & 0xffff;
122 state = WC_UTF7_BASE64;
125 state = WC_UTF7_NOSTATE;
129 switch (WC_UTF7_MAP[*p]) {
132 Strcat_char(os, (char)*p);
135 wtf_push_unknown(os, p, 1);
138 wtf_push_ucs(os, (wc_uint32)*p, &st);
146 wc_push_ucs_to_utf7(Str os, wc_uint32 ucs, wc_status *st)
148 if (ucs > WC_C_UNICODE_END)
150 if (ucs > WC_C_UCS2_END) {
151 ucs = wc_ucs_to_utf16(ucs);
152 wc_push_ucs_to_utf7(os, ucs >> 16, st);
153 wc_push_ucs_to_utf7(os, ucs & 0xffff, st);
157 switch (WC_UTF7_MAP[ucs]) {
162 if (st->state == WC_UTF7_BASE64) {
163 Strcat_char(os, BASE64_C(st->base));
164 Strcat_char(os, WC_C_UTF7_MINUS);
165 st->state = WC_UTF7_NOSTATE;
167 Strcat_char(os, (char)ucs);
170 if (st->state == WC_UTF7_BASE64) {
171 Strcat_char(os, BASE64_C(st->base));
172 Strcat_char(os, WC_C_UTF7_MINUS);
173 st->state = WC_UTF7_NOSTATE;
175 Strcat_char(os, WC_C_UTF7_PLUS);
176 Strcat_char(os, WC_C_UTF7_MINUS);
180 if (st->state == WC_UTF7_BASE64 && st->shift) {
182 st->base |= ucs >> st->shift;
183 Strcat_char(os, BASE64_C(st->base));
185 if (st->state != WC_UTF7_BASE64) {
186 Strcat_char(os, WC_C_UTF7_PLUS);
187 st->state = WC_UTF7_BASE64;
193 Strcat_char(os, BASE64_C((ucs >> st->shift) & 0x3f));
195 Strcat_char(os, BASE64_C((ucs >> st->shift) & 0x3f));
198 st->base = (ucs << (- st->shift)) & 0x3f;
204 wc_push_tag_to_utf7(Str os, int ntag, wc_status *st)
209 p = wc_ucs_get_tag(ntag);
214 wc_push_ucs_to_utf7(os, WC_C_LANGUAGE_TAG, st);
216 wc_push_ucs_to_utf7(os, WC_C_LANGUAGE_TAG0 | *p, st);
218 wc_push_ucs_to_utf7(os, WC_C_CANCEL_TAG, st);
223 wc_push_to_utf7(Str os, wc_wchar_t cc, wc_status *st)
228 switch (WC_CCS_SET(cc.ccs)) {
230 if (cc.code > WC_C_UNICODE_END) {
231 cc.ccs = WC_CCS_IS_WIDE(cc.ccs) ? WC_CCS_UNKNOWN_W : WC_CCS_UNKNOWN;
234 case WC_CCS_US_ASCII:
237 st->ntag = wc_push_tag_to_utf7(os, 0, st);
238 wc_push_ucs_to_utf7(os, cc.code, st);
241 if (WcOption.use_language_tag && wc_ucs_tag_to_tag(cc.code) != st->ntag)
242 st->ntag = wc_push_tag_to_utf7(os, wc_ucs_tag_to_tag(cc.code), st);
243 wc_push_ucs_to_utf7(os, wc_ucs_tag_to_ucs(cc.code), st);
245 case WC_CCS_ISO_8859_1:
247 st->ntag = wc_push_tag_to_utf7(os, 0, st);
248 wc_push_ucs_to_utf7(os, cc.code | 0x80, st);
250 case WC_CCS_UNKNOWN_W:
251 if (!WcOption.no_replace) {
253 st->ntag = wc_push_tag_to_utf7(os, 0, st);
254 for (p = WC_REPLACE_W; *p; p++)
255 wc_push_ucs_to_utf7(os, (wc_uint32)*p, st);
259 if (!WcOption.no_replace) {
261 st->ntag = wc_push_tag_to_utf7(os, 0, st);
262 for (p = WC_REPLACE; *p; p++)
263 wc_push_ucs_to_utf7(os, (wc_uint32)*p, st);
267 if (WcOption.ucs_conv &&
268 (cc.code = wc_any_to_ucs(cc)) != WC_C_UCS4_ERROR)
269 cc.ccs = WC_CCS_UCS2;
271 cc.ccs = WC_CCS_IS_WIDE(cc.ccs) ? WC_CCS_UNKNOWN_W : WC_CCS_UNKNOWN;
278 wc_push_to_utf7_end(Str os, wc_status *st)
281 st->ntag = wc_push_tag_to_utf7(os, 0, st);
282 if (st->state == WC_UTF7_BASE64) {
284 Strcat_char(os, BASE64_C(st->base));
285 Strcat_char(os, WC_C_UTF7_MINUS);
291 wc_char_conv_from_utf7(wc_uchar c, wc_status *st)
294 static wc_uint32 high;
297 if (st->state == -1) {
298 st->state = WC_UTF7_NOSTATE;
303 case WC_UTF7_NOSTATE:
304 if (c == WC_C_UTF7_PLUS) {
305 st->state = WC_UTF7_PLUS;
313 if (c == WC_C_UTF7_MINUS) {
314 wtf_push_ucs(os, (wc_uint32)WC_C_UTF7_PLUS, st);
319 switch (WC_UTF7_MAP[c]) {
320 case BB: /* [A-Za-z0-9/] */
324 if (st->shift <= 0) {
325 st->base |= b >> (- st->shift);
326 if (st->base >= WC_C_UCS2_SURROGATE &&
327 st->base < WC_C_UCS2_SURROGATE_LOW) {
331 high = 0; /* error */
332 } else if (st->base >= WC_C_UCS2_SURROGATE_LOW &&
333 st->base <= WC_C_UCS2_SURROGATE_END) {
335 wtf_push_ucs(os, wc_utf16_to_ucs(high, st->base), st);
336 /* else; */ /* error */
338 } else if (st->base != WC_C_UCS2_BOM)
339 wtf_push_ucs(os, st->base, st);
343 st->base |= (b << st->shift) & 0xffff;
344 st->state = WC_UTF7_BASE64;
351 switch (WC_UTF7_MAP[c]) {
354 Strcat_char(os, (char)c);
359 wtf_push_ucs(os, (wc_uint32)c, st);