14 #include <sys/types.h>
18 #define GCC_VERSION_SINCE(major, minor, patchlevel) \
19 (defined(__GNUC__) && !defined(__INTEL_COMPILER) && \
20 ((__GNUC__ > (major)) || \
21 (__GNUC__ == (major) && __GNUC_MINOR__ > (minor)) || \
22 (__GNUC__ == (major) && __GNUC_MINOR__ == (minor) && __GNUC_PATCHLEVEL__ >= (patchlevel))))
23 #if SIZEOF_SHORT != 2 || SIZEOF_LONG != 4
34 static int endian_value;
37 if (init)
return endian_value;
40 return endian_value = p[0]?0:1;
42 # define BIGENDIAN_P() (is_bigendian())
43 #elif defined(WORDS_BIGENDIAN)
44 # define BIGENDIAN_P() 1
46 # define BIGENDIAN_P() 0
50 # define NATINT_LEN(type,len) (natint?(int)sizeof(type):(int)(len))
52 # define NATINT_LEN(type,len) ((int)sizeof(type))
56 # define INT64toNUM(x) LONG2NUM(x)
57 # define UINT64toNUM(x) ULONG2NUM(x)
58 #elif defined(HAVE_LONG_LONG) && SIZEOF_LONG_LONG == 8
59 # define INT64toNUM(x) LL2NUM(x)
60 # define UINT64toNUM(x) ULL2NUM(x)
63 #define define_swapx(x, xtype) \
65 TOKEN_PASTE(swap,x)(xtype z) \
69 unsigned char *s, *t; \
72 zp = xmalloc(sizeof(xtype)); \
74 s = (unsigned char*)zp; \
75 t = xmalloc(sizeof(xtype)); \
76 for (i=0; i<sizeof(xtype); i++) { \
77 t[sizeof(xtype)-i-1] = s[i]; \
85 #if GCC_VERSION_SINCE(4,3,0)
86 # define swap32(x) __builtin_bswap32(x)
87 # define swap64(x) __builtin_bswap64(x)
91 # define swap16(x) ((((x)&0xFF)<<8) | (((x)>>8)&0xFF))
95 # define swap32(x) ((((x)&0xFF)<<24) \
97 |(((x)&0x0000FF00)<<8) \
98 |(((x)&0x00FF0000)>>8) )
103 # define byte_in_64bit(n) ((uint64_t)0xff << (n))
104 # define swap64(x) ((((x)&byte_in_64bit(0))<<56) \
106 |(((x)&byte_in_64bit(8))<<40) \
107 |(((x)&byte_in_64bit(48))>>40) \
108 |(((x)&byte_in_64bit(16))<<24) \
109 |(((x)&byte_in_64bit(40))>>24) \
110 |(((x)&byte_in_64bit(24))<<8) \
111 |(((x)&byte_in_64bit(32))>>8))
115 #if SIZEOF_SHORT == 2
116 # define swaps(x) swap16(x)
117 #elif SIZEOF_SHORT == 4
118 # define swaps(x) swap32(x)
124 # define swapi(x) swap16(x)
125 #elif SIZEOF_INT == 4
126 # define swapi(x) swap32(x)
132 # define swapl(x) swap32(x)
133 #elif SIZEOF_LONG == 8
134 # define swapl(x) swap64(x)
139 #ifdef HAVE_LONG_LONG
140 # if SIZEOF_LONG_LONG == 8
141 # define swapll(x) swap64(x)
147 #if SIZEOF_FLOAT == 4 && defined(HAVE_INT32_T)
148 # define swapf(x) swap32(x)
149 # define FLOAT_SWAPPER uint32_t
154 #if SIZEOF_DOUBLE == 8 && defined(HAVE_INT64_T)
155 # define swapd(x) swap64(x)
156 # define DOUBLE_SWAPPER uint64_t
157 #elif SIZEOF_DOUBLE == 8 && defined(HAVE_INT32_T)
159 swapd(
const double d)
165 utmp[0] = 0; utmp[1] = 0;
166 memcpy(utmp,&dtmp,
sizeof(
double));
168 utmp[0] =
swap32(utmp[1]);
170 memcpy(&dtmp,utmp,
sizeof(
double));
179 #define rb_ntohf(x) (BIGENDIAN_P()?(x):swapf(x))
180 #define rb_ntohd(x) (BIGENDIAN_P()?(x):swapd(x))
181 #define rb_htonf(x) (BIGENDIAN_P()?(x):swapf(x))
182 #define rb_htond(x) (BIGENDIAN_P()?(x):swapd(x))
183 #define rb_htovf(x) (BIGENDIAN_P()?swapf(x):(x))
184 #define rb_htovd(x) (BIGENDIAN_P()?swapd(x):(x))
185 #define rb_vtohf(x) (BIGENDIAN_P()?swapf(x):(x))
186 #define rb_vtohd(x) (BIGENDIAN_P()?swapd(x):(x))
189 # define FLOAT_CONVWITH(y) FLOAT_SWAPPER y;
190 # define HTONF(x,y) (memcpy(&(y),&(x),sizeof(float)), \
191 (y) = rb_htonf((FLOAT_SWAPPER)(y)), \
192 memcpy(&(x),&(y),sizeof(float)), \
194 # define HTOVF(x,y) (memcpy(&(y),&(x),sizeof(float)), \
195 (y) = rb_htovf((FLOAT_SWAPPER)(y)), \
196 memcpy(&(x),&(y),sizeof(float)), \
198 # define NTOHF(x,y) (memcpy(&(y),&(x),sizeof(float)), \
199 (y) = rb_ntohf((FLOAT_SWAPPER)(y)), \
200 memcpy(&(x),&(y),sizeof(float)), \
202 # define VTOHF(x,y) (memcpy(&(y),&(x),sizeof(float)), \
203 (y) = rb_vtohf((FLOAT_SWAPPER)(y)), \
204 memcpy(&(x),&(y),sizeof(float)), \
207 # define FLOAT_CONVWITH(y)
208 # define HTONF(x,y) rb_htonf(x)
209 # define HTOVF(x,y) rb_htovf(x)
210 # define NTOHF(x,y) rb_ntohf(x)
211 # define VTOHF(x,y) rb_vtohf(x)
214 #ifdef DOUBLE_SWAPPER
215 # define DOUBLE_CONVWITH(y) DOUBLE_SWAPPER y;
216 # define HTOND(x,y) (memcpy(&(y),&(x),sizeof(double)), \
217 (y) = rb_htond((DOUBLE_SWAPPER)(y)), \
218 memcpy(&(x),&(y),sizeof(double)), \
220 # define HTOVD(x,y) (memcpy(&(y),&(x),sizeof(double)), \
221 (y) = rb_htovd((DOUBLE_SWAPPER)(y)), \
222 memcpy(&(x),&(y),sizeof(double)), \
224 # define NTOHD(x,y) (memcpy(&(y),&(x),sizeof(double)), \
225 (y) = rb_ntohd((DOUBLE_SWAPPER)(y)), \
226 memcpy(&(x),&(y),sizeof(double)), \
228 # define VTOHD(x,y) (memcpy(&(y),&(x),sizeof(double)), \
229 (y) = rb_vtohd((DOUBLE_SWAPPER)(y)), \
230 memcpy(&(x),&(y),sizeof(double)), \
233 # define DOUBLE_CONVWITH(y)
234 # define HTOND(x,y) rb_htond(x)
235 # define HTOVD(x,y) rb_htovd(x)
236 # define NTOHD(x,y) rb_ntohd(x)
237 # define VTOHD(x,y) rb_vtohd(x)
253 #define MAX_INTEGER_PACK_SIZE 8
256 static const char toofew[] =
"too few arguments";
261 static unsigned long utf8_to_uv(
const char*,
long*);
370 static const char nul10[] =
"\0\0\0\0\0\0\0\0\0\0";
371 static const char spc10[] =
" ";
372 const char *
p, *pend;
373 VALUE res, from, associates = 0;
375 long items,
len, idx, plen;
381 int signed_p, integer_size, bigendian_p;
391 #define TOO_FEW (rb_raise(rb_eArgError, toofew), 0)
392 #define THISFROM (items > 0 ? RARRAY_PTR(ary)[idx] : TOO_FEW)
393 #define NEXTFROM (items-- > 0 ? RARRAY_PTR(ary)[idx++] : TOO_FEW)
396 int explicit_endian = 0;
407 while ((p < pend) && (*p !=
'\n')) {
414 static const char natstr[] =
"sSiIlL";
415 static const char endstr[] =
"sSiIlLqQ";
421 if (
strchr(natstr, type)) {
434 if (!
strchr(endstr, type)) {
437 if (explicit_endian) {
440 explicit_endian = *p++;
446 len =
strchr(
"@Xxu", type) ? 0
453 len =
STRTOUL(p, (
char**)&p, 10);
465 if (enc_info == 1) enc_info = 2;
467 case 'm':
case 'M':
case 'u':
476 case 'A':
case 'a':
case 'Z':
500 if (p[-1] ==
'*' && type ==
'Z')
520 j = (len - plen + 1)/2;
523 for (i=0; i++ <
len; ptr++) {
529 char c = byte & 0xff;
536 byte >>= 7 - (len & 7);
551 j = (len - plen + 1)/2;
554 for (i=0; i++ <
len; ptr++) {
559 char c = byte & 0xff;
566 byte <<= 7 - (len & 7);
581 j = (len + 1) / 2 - (plen + 1) / 2;
584 for (i=0; i++ <
len; ptr++) {
586 byte |= (((*ptr & 15) + 9) & 15) << 4;
588 byte |= (*ptr & 15) << 4;
592 char c = byte & 0xff;
598 char c = byte & 0xff;
612 j = (len + 1) / 2 - (plen + 1) / 2;
615 for (i=0; i++ <
len; ptr++) {
617 byte |= ((*ptr & 15) + 9) & 15;
623 char c = byte & 0xff;
629 char c = byte & 0xff;
645 c = (char)num2i32(from);
664 integer_size = (int)
sizeof(
int);
670 integer_size = (int)
sizeof(
int);
723 if (explicit_endian) {
724 bigendian_p = explicit_endian ==
'>';
727 switch (integer_size) {
728 #if defined(HAVE_INT16_T) && !defined(FORCE_BIG_PACK)
733 char a[
sizeof(int16_t)];
737 v.i = (int16_t)num2i32(from);
744 #if defined(HAVE_INT32_T) && !defined(FORCE_BIG_PACK)
749 char a[
sizeof(int32_t)];
753 v.i = (int32_t)num2i32(from);
760 #if defined(HAVE_INT64_T) && SIZEOF_LONG == SIZEOF_INT64_T && !defined(FORCE_BIG_PACK)
765 char a[
sizeof(int64_t)];
778 rb_bug(
"unexpected intger size for pack: %d", integer_size);
784 int num_longs = (integer_size+SIZEOF_LONG-1)/SIZEOF_LONG;
790 for (i = 0; i < num_longs/2; i++) {
791 unsigned long t =
v.i[
i];
792 v.i[
i] =
v.i[num_longs-1-
i];
793 v.i[num_longs-1-
i] = t;
797 for (i = 0; i < num_longs; i++)
798 v.i[i] = swapl(
v.i[i]);
802 v.a +
sizeof(
long)*num_longs - integer_size :
899 if (len > 0)
goto grow;
901 if (len > 0)
goto shrink;
932 if (len == 0 && type ==
'm') {
933 encodes(res, ptr, plen, type, 0);
948 encodes(res, ptr, todo, type, 1);
995 char c, *bufs, *bufe;
1017 c = (char)(ul & 0x7f) | 0x80;
1026 while (bufs < bufe) {
1064 "`!\"#$%&'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\\]^_";
1066 "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
1071 enum {buff_size = 4096, encoded_unit = 4};
1072 char buff[buff_size + 1];
1078 buff[i++] = (char)len +
' ';
1085 while (len >= 3 && buff_size-i >= encoded_unit) {
1086 buff[i++] = trans[077 & (*s >> 2)];
1087 buff[i++] = trans[077 & (((*s << 4) & 060) | ((s[1] >> 4) & 017))];
1088 buff[i++] = trans[077 & (((s[1] << 2) & 074) | ((s[2] >> 6) & 03))];
1089 buff[i++] = trans[077 & s[2]];
1093 if (buff_size-i < encoded_unit) {
1100 buff[i++] = trans[077 & (*s >> 2)];
1101 buff[i++] = trans[077 & (((*s << 4) & 060) | ((s[1] >> 4) & 017))];
1102 buff[i++] = trans[077 & (((s[1] << 2) & 074) | ((
'\0' >> 6) & 03))];
1103 buff[i++] = padding;
1105 else if (len == 1) {
1106 buff[i++] = trans[077 & (*s >> 2)];
1107 buff[i++] = trans[077 & (((*s << 4) & 060) | (('\0' >> 4) & 017))];
1108 buff[i++] = padding;
1109 buff[i++] = padding;
1111 if (tail_lf) buff[i++] =
'\n';
1113 if ((
size_t)i >
sizeof(buff))
rb_bug(
"encodes() buffer overrun");
1122 long i = 0, n = 0, prev =
EOF;
1123 unsigned char *s = (
unsigned char*)
RSTRING_PTR(from);
1128 (*s < 32 && *s !=
'\n' && *s !=
'\t') ||
1131 buff[i++] = hex_table[*s >> 4];
1132 buff[i++] = hex_table[*s & 0x0f];
1136 else if (*s ==
'\n') {
1137 if (prev ==
' ' || prev ==
'\t') {
1175 case '0':
case '1':
case '2':
case '3':
case '4':
1176 case '5':
case '6':
case '7':
case '8':
case '9':
1178 case 'a':
case 'b':
case 'c':
1179 case 'd':
case 'e':
case 'f':
1180 return c -
'a' + 10;
1181 case 'A':
case 'B':
case 'C':
1182 case 'D':
case 'E':
case 'F':
1183 return c -
'A' + 10;
1189 #define PACK_LENGTH_ADJUST_SIZE(sz) do { \
1191 if (len > (long)((send-s)/(sz))) { \
1193 tmp_len = len-(send-s)/(sz); \
1195 len = (send-s)/(sz); \
1199 #define PACK_ITEM_ADJUST() do { \
1200 if (tmp_len > 0 && !block_p) \
1201 rb_ary_store(ary, RARRAY_LEN(ary)+tmp_len-1, Qnil); \
1324 static const char hexdigits[] =
"0123456789abcdef";
1335 int signed_p, integer_size, bigendian_p;
1336 #define UNPACK_PUSH(item) do {\
1337 VALUE item_val = (item);\
1339 rb_yield(item_val);\
1342 rb_ary_push(ary, item_val);\
1355 int explicit_endian = 0;
1363 while ((p < pend) && (*p !=
'\n')) {
1371 static const char natstr[] =
"sSiIlL";
1372 static const char endstr[] =
"sSiIlLqQ";
1379 if (
strchr(natstr, type)) {
1392 if (!
strchr(endstr, type)) {
1395 if (explicit_endian) {
1398 explicit_endian = *p++;
1405 else if (*p ==
'*') {
1412 len =
STRTOUL(p, (
char**)&p, 10);
1418 len = (type !=
'@');
1427 if (len > send - s) len = send - s;
1430 char *t = s + len - 1;
1433 if (*t !=
' ' && *t !=
'\0')
break;
1445 if (len > send-s) len = send-s;
1446 while (t < s+len && *t) t++;
1449 s = star ? t : s+
len;
1454 if (len > send - s) len = send - s;
1466 if (p[-1] ==
'*' || len > (send - s) * 8)
1467 len = (send - s) * 8;
1471 for (i=0; i<
len; i++) {
1472 if (i & 7) bits >>= 1;
1474 *t++ = (bits & 1) ?
'1' :
'0';
1486 if (p[-1] ==
'*' || len > (send - s) * 8)
1487 len = (send - s) * 8;
1491 for (i=0; i<
len; i++) {
1492 if (i & 7) bits <<= 1;
1494 *t++ = (bits & 128) ?
'1' :
'0';
1506 if (p[-1] ==
'*' || len > (send - s) * 2)
1507 len = (send - s) * 2;
1511 for (i=0; i<
len; i++) {
1516 *t++ = hexdigits[bits & 15];
1528 if (p[-1] ==
'*' || len > (send - s) * 2)
1529 len = (send - s) * 2;
1533 for (i=0; i<
len; i++) {
1538 *t++ = hexdigits[(bits >> 4) & 15];
1547 if (c > (
char)127) c-=256;
1556 unsigned char c = *s++;
1566 goto unpack_integer;
1572 goto unpack_integer;
1576 integer_size = (int)
sizeof(
int);
1578 goto unpack_integer;
1582 integer_size = (int)
sizeof(
int);
1584 goto unpack_integer;
1590 goto unpack_integer;
1596 goto unpack_integer;
1602 goto unpack_integer;
1608 goto unpack_integer;
1614 goto unpack_integer;
1620 goto unpack_integer;
1626 goto unpack_integer;
1632 goto unpack_integer;
1635 if (explicit_endian) {
1636 bigendian_p = explicit_endian ==
'>';
1639 switch (integer_size) {
1640 #if defined(HAVE_INT16_T) && !defined(FORCE_BIG_PACK)
1641 case SIZEOF_INT16_T:
1647 char a[
sizeof(int16_t)];
1649 memcpy(
v.a, s,
sizeof(int16_t));
1651 s +=
sizeof(int16_t);
1661 char a[
sizeof(uint16_t)];
1663 memcpy(
v.a, s,
sizeof(uint16_t));
1665 s +=
sizeof(uint16_t);
1673 #if defined(HAVE_INT32_T) && !defined(FORCE_BIG_PACK)
1674 case SIZEOF_INT32_T:
1680 char a[
sizeof(int32_t)];
1682 memcpy(
v.a, s,
sizeof(int32_t));
1684 s +=
sizeof(int32_t);
1706 #if defined(HAVE_INT64_T) && !defined(FORCE_BIG_PACK)
1707 case SIZEOF_INT64_T:
1713 char a[
sizeof(int64_t)];
1715 memcpy(
v.a, s,
sizeof(int64_t));
1717 s +=
sizeof(int64_t);
1741 rb_bug(
"unexpected intger size for pack: %d", integer_size);
1748 int num_longs = (integer_size+SIZEOF_LONG)/SIZEOF_LONG;
1751 if (signed_p && (
signed char)s[bigendian_p ? 0 : (integer_size-1)] < 0)
1752 memset(
v.a, 0xff,
sizeof(
long)*num_longs);
1754 memset(
v.a, 0,
sizeof(
long)*num_longs);
1756 memcpy(
v.a +
sizeof(
long)*num_longs - integer_size, s, integer_size);
1758 memcpy(
v.a, s, integer_size);
1760 for (i = 0; i < num_longs/2; i++) {
1761 unsigned long t =
v.i[
i];
1762 v.i[
i] =
v.i[num_longs-1-
i];
1763 v.i[num_longs-1-
i] = t;
1767 for (i = 0; i < num_longs; i++)
1768 v.i[i] = swapl(
v.i[i]);
1783 memcpy(&tmp, s,
sizeof(
float));
1796 memcpy(&tmp, s,
sizeof(
float));
1798 tmp =
VTOHF(tmp,ftmp);
1810 memcpy(&tmp, s,
sizeof(
double));
1811 s +=
sizeof(double);
1812 tmp =
VTOHD(tmp,dtmp);
1823 memcpy(&tmp, s,
sizeof(
double));
1824 s +=
sizeof(double);
1836 memcpy(&tmp, s,
sizeof(
float));
1838 tmp =
NTOHF(tmp,ftmp);
1850 memcpy(&tmp, s,
sizeof(
double));
1851 s +=
sizeof(double);
1852 tmp =
NTOHD(tmp,dtmp);
1859 if (len > send - s) len = send - s;
1860 while (len > 0 && s < send) {
1861 long alen = send - s;
1876 while (s < send && *s >
' ' && *s <
'a') {
1881 len = (*s++ -
' ') & 077;
1889 long mlen = len > 3 ? 3 :
len;
1891 if (s < send && *s >=
' ')
1892 a = (*s++ -
' ') & 077;
1895 if (s < send && *s >=
' ')
1896 b = (*s++ -
' ') & 077;
1899 if (s < send && *s >=
' ')
1900 c = (*s++ -
' ') & 077;
1903 if (s < send && *s >=
' ')
1904 d = (*s++ -
' ') & 077;
1907 hunk[0] = (char)(a << 2 | b >> 4);
1908 hunk[1] = (char)(b << 4 | c >> 2);
1909 hunk[2] = (char)(c << 6 | d);
1910 memcpy(ptr, hunk, mlen);
1914 if (*s ==
'\r') s++;
1915 if (*s ==
'\n') s++;
1916 else if (s < send && (s+1 == send || s[1] ==
'\n'))
1929 int a = -1,b = -1,c = 0,d = 0;
1930 static signed char b64_xtable[256];
1932 if (b64_xtable[
'/'] <= 0) {
1935 for (i = 0; i < 256; i++) {
1938 for (i = 0; i < 64; i++) {
1939 b64_xtable[(
unsigned char)b64_table[i]] = i;
1945 a = b64_xtable[(
unsigned char)*s++];
1947 b = b64_xtable[(
unsigned char)*s++];
1950 if (s + 2 == send && *(s + 1) ==
'=')
break;
1953 c = b64_xtable[(
unsigned char)*s++];
1955 if (s + 1 == send && *s ==
'=')
break;
1956 d = b64_xtable[(
unsigned char)*s++];
1958 *ptr++ = a << 2 | b >> 4;
1959 *ptr++ = b << 4 | c >> 2;
1960 *ptr++ = c << 6 | d;
1963 *ptr++ = a << 2 | b >> 4;
1967 *ptr++ = a << 2 | b >> 4;
1968 *ptr++ = b << 4 | c >> 2;
1975 while ((a = b64_xtable[(
unsigned char)*s]) == -1 && s < send) {s++;}
1976 if (s >= send)
break;
1978 while ((b = b64_xtable[(
unsigned char)*s]) == -1 && s < send) {s++;}
1979 if (s >= send)
break;
1981 while ((c = b64_xtable[(
unsigned char)*s]) == -1 && s < send) {
if (*s ==
'=')
break; s++;}
1982 if (*s ==
'=' || s >= send)
break;
1984 while ((d = b64_xtable[(
unsigned char)*s]) == -1 && s < send) {
if (*s ==
'=')
break; s++;}
1985 if (*s ==
'=' || s >= send)
break;
1987 *ptr++ = a << 2 | b >> 4;
1988 *ptr++ = b << 4 | c >> 2;
1989 *ptr++ = c << 6 | d;
1991 if (a != -1 && b != -1) {
1992 if (c == -1 && *s ==
'=')
1993 *ptr++ = a << 2 | b >> 4;
1994 else if (c != -1 && *s ==
'=') {
1995 *ptr++ = a << 2 | b >> 4;
1996 *ptr++ = b << 4 | c >> 2;
2013 if (++s == send)
break;
2014 if (s+1 < send && *s ==
'\r' && *(s+1) ==
'\n')
2017 if ((c1 =
hex2num(*s)) == -1)
break;
2018 if (++s == send)
break;
2019 if ((c2 =
hex2num(*s)) == -1)
break;
2020 *ptr++ = c1 << 4 | c2;
2055 if (
sizeof(
char *) <= (
size_t)(send - s)) {
2059 memcpy(&t, s,
sizeof(
char *));
2060 s +=
sizeof(
char *);
2092 if (len > (
long)((send - s) /
sizeof(
char *)))
2093 len = (send - s) /
sizeof(
char *);
2095 if ((
size_t)(send - s) <
sizeof(
char *))
2101 memcpy(&t, s,
sizeof(
char *));
2102 s +=
sizeof(
char *);
2130 unsigned long ul = 0;
2131 unsigned long ulmask = 0xfeUL << ((
sizeof(
unsigned long) - 1) * 8);
2133 while (len > 0 && s < send) {
2136 if (!(*s++ & 0x80)) {
2141 else if (ul & ulmask) {
2147 if (!(*s++ & 0x80)) {
2177 buf[0] = (char)((uv>>6)&0xff)|0xc0;
2178 buf[1] = (char)(uv&0x3f)|0x80;
2182 buf[0] = (char)((uv>>12)&0xff)|0xe0;
2183 buf[1] = (char)((uv>>6)&0x3f)|0x80;
2184 buf[2] = (char)(uv&0x3f)|0x80;
2187 if (uv <= 0x1fffff) {
2188 buf[0] = (char)((uv>>18)&0xff)|0xf0;
2189 buf[1] = (char)((uv>>12)&0x3f)|0x80;
2190 buf[2] = (char)((uv>>6)&0x3f)|0x80;
2191 buf[3] = (char)(uv&0x3f)|0x80;
2194 if (uv <= 0x3ffffff) {
2195 buf[0] = (char)((uv>>24)&0xff)|0xf8;
2196 buf[1] = (char)((uv>>18)&0x3f)|0x80;
2197 buf[2] = (char)((uv>>12)&0x3f)|0x80;
2198 buf[3] = (char)((uv>>6)&0x3f)|0x80;
2199 buf[4] = (char)(uv&0x3f)|0x80;
2202 if (uv <= 0x7fffffff) {
2203 buf[0] = (char)((uv>>30)&0xff)|0xfc;
2204 buf[1] = (char)((uv>>24)&0x3f)|0x80;
2205 buf[2] = (char)((uv>>18)&0x3f)|0x80;
2206 buf[3] = (char)((uv>>12)&0x3f)|0x80;
2207 buf[4] = (char)((uv>>6)&0x3f)|0x80;
2208 buf[5] = (char)(uv&0x3f)|0x80;
2224 static unsigned long
2227 int c = *p++ & 0xff;
2228 unsigned long uv = c;
2240 if (!(uv & 0x20)) { n = 2; uv &= 0x1f; }
2241 else if (!(uv & 0x10)) { n = 3; uv &= 0x0f; }
2242 else if (!(uv & 0x08)) { n = 4; uv &= 0x07; }
2243 else if (!(uv & 0x04)) { n = 5; uv &= 0x03; }
2244 else if (!(uv & 0x02)) { n = 6; uv &= 0x01; }
2257 if ((c & 0xc0) != 0x80) {
2268 if (uv < utf8_limits[n]) {