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-rw-r--r--pack.c1835
1 files changed, 0 insertions, 1835 deletions
diff --git a/pack.c b/pack.c
deleted file mode 100644
index 33870d28fc..0000000000
--- a/pack.c
+++ /dev/null
@@ -1,1835 +0,0 @@
-/**********************************************************************
-
- pack.c -
-
- $Author$
- $Date$
- created at: Thu Feb 10 15:17:05 JST 1994
-
- Copyright (C) 1993-2001 Yukihiro Matsumoto
-
-**********************************************************************/
-
-#include "ruby.h"
-#include <sys/types.h>
-#include <ctype.h>
-
-#define SIZE16 2
-#define SIZE32 4
-
-#if SIZEOF_SHORT != 2 || SIZEOF_LONG != 4
-# define NATINT_PACK
-#endif
-
-#ifdef NATINT_PACK
-# define OFF16B(p) ((char*)(p) + (natint?0:(sizeof(short) - SIZE16)))
-# define OFF32B(p) ((char*)(p) + (natint?0:(sizeof(long) - SIZE32)))
-# define NATINT_I32(x) (natint?NUM2LONG(x):(NUM2I32(x)))
-# define NATINT_U32(x) (natint?NUM2ULONG(x):(NUM2U32(x)))
-# define NATINT_LEN(type,len) (natint?sizeof(type):(len))
-# ifdef WORDS_BIGENDIAN
-# define OFF16(p) OFF16B(p)
-# define OFF32(p) OFF32B(p)
-# endif
-#else
-# define NATINT_I32(x) NUM2I32(x)
-# define NATINT_U32(x) NUM2U32(x)
-# define NATINT_LEN(type,len) sizeof(type)
-#endif
-
-#ifndef OFF16
-# define OFF16(p) (char*)(p)
-# define OFF32(p) (char*)(p)
-#endif
-
-#ifndef OFF16B
-# define OFF16B(p) (char*)(p)
-# define OFF32B(p) (char*)(p)
-#endif
-
-#define define_swapx(x, xtype) \
-static xtype \
-TOKEN_PASTE(swap,x)(z) \
- xtype z; \
-{ \
- xtype r; \
- xtype *zp; \
- unsigned char *s, *t; \
- int i; \
- \
- zp = (xtype *)malloc(sizeof(xtype));\
- *zp = z; \
- s = (char *)zp; \
- t = (char *)malloc(sizeof(xtype)); \
- for (i=0; i<sizeof(xtype); i++) { \
- t[sizeof(xtype)-i-1] = s[i]; \
- } \
- r = *(xtype *)t; \
- free(t); \
- free(zp); \
- return r; \
-}
-
-#if SIZEOF_SHORT == 2
-#define swaps(x) ((((x)&0xFF)<<8) | (((x)>>8)&0xFF))
-#else
-#if SIZEOF_SHORT == 4
-#define swaps(x) ((((x)&0xFF)<<24) \
- |(((x)>>24)&0xFF) \
- |(((x)&0x0000FF00)<<8) \
- |(((x)&0x00FF0000)>>8) )
-#else
-define_swapx(s,short);
-#endif
-#endif
-
-#if SIZEOF_LONG == 4
-#define swapl(x) ((((x)&0xFF)<<24) \
- |(((x)>>24)&0xFF) \
- |(((x)&0x0000FF00)<<8) \
- |(((x)&0x00FF0000)>>8) )
-#else
-#if SIZEOF_LONG == 8
-#define swapl(x) ((((x)&0x00000000000000FF)<<56) \
- |(((x)&0xFF00000000000000)>>56) \
- |(((x)&0x000000000000FF00)<<40) \
- |(((x)&0x00FF000000000000)>>40) \
- |(((x)&0x0000000000FF0000)<<24) \
- |(((x)&0x0000FF0000000000)>>24) \
- |(((x)&0x00000000FF000000)<<8) \
- |(((x)&0x000000FF00000000)>>8))
-#else
-define_swapx(l,long);
-#endif
-#endif
-
-#if SIZEOF_FLOAT == 4
-#if SIZEOF_LONG == 4 /* SIZEOF_FLOAT == 4 == SIZEOF_LONG */
-#define swapf(x) swapl(x)
-#define FLOAT_SWAPPER unsigned long
-#else
-#if SIZEOF_SHORT == 4 /* SIZEOF_FLOAT == 4 == SIZEOF_SHORT */
-#define swapf(x) swaps(x)
-#define FLOAT_SWAPPER unsigned short
-#else /* SIZEOF_FLOAT == 4 but undivide by known size of int */
-define_swapx(f,float);
-#endif /* #if SIZEOF_SHORT == 4 */
-#endif /* #if SIZEOF_LONG == 4 */
-#else /* SIZEOF_FLOAT != 4 */
-define_swapx(f,float);
-#endif /* #if SIZEOF_FLOAT == 4 */
-
-#if SIZEOF_DOUBLE == 8
-#if SIZEOF_LONG == 8 /* SIZEOF_DOUBLE == 8 == SIZEOF_LONG */
-#define swapd(x) swapl(x)
-#define DOUBLE_SWAPPER unsigned long
-#else
-#if SIZEOF_LONG == 4 /* SIZEOF_DOUBLE == 8 && 4 == SIZEOF_LONG */
-static double
-swapd(d)
- const double d;
-{
- double dtmp = d;
- unsigned long utmp[2];
- unsigned long utmp0;
-
- utmp[0] = 0; utmp[1] = 0;
- memcpy(utmp,&dtmp,sizeof(double));
- utmp0 = utmp[0];
- utmp[0] = swapl(utmp[1]);
- utmp[1] = swapl(utmp0);
- memcpy(&dtmp,utmp,sizeof(double));
- return dtmp;
-}
-#else
-#if SIZEOF_SHORT == 4 /* SIZEOF_DOUBLE == 8 && 4 == SIZEOF_SHORT */
-static double
-swapd(d)
- const double d;
-{
- double dtmp = d;
- unsigned short utmp[2];
- unsigned short utmp0;
-
- utmp[0] = 0; utmp[1] = 0;
- memcpy(utmp,&dtmp,sizeof(double));
- utmp0 = utmp[0];
- utmp[0] = swaps(utmp[1]);
- utmp[1] = swaps(utmp0);
- memcpy(&dtmp,utmp,sizeof(double));
- return dtmp;
-}
-#else /* SIZEOF_DOUBLE == 8 but undivied by known size of int */
-define_swapx(d, double);
-#endif /* #if SIZEOF_SHORT == 4 */
-#endif /* #if SIZEOF_LONG == 4 */
-#endif /* #if SIZEOF_LONG == 8 */
-#else /* SIZEOF_DOUBLE != 8 */
-define_swapx(d, double);
-#endif /* #if SIZEOF_DPOUBLE == 8 */
-
-#undef define_swapx
-
-#ifdef DYNAMIC_ENDIAN
-#ifdef ntohs
-#undef ntohs
-#undef ntohl
-#undef htons
-#undef htonl
-#endif
-static int
-endian()
-{
- static int init = 0;
- static int endian_value;
- char *p;
-
- if (init) return endian_value;
- init = 1;
- p = (char*)&init;
- return endian_value = p[0]?0:1;
-}
-
-#define ntohs(x) (endian()?(x):swaps(x))
-#define ntohl(x) (endian()?(x):swapl(x))
-#define ntohf(x) (endian()?(x):swapf(x))
-#define ntohd(x) (endian()?(x):swapd(x))
-#define htons(x) (endian()?(x):swaps(x))
-#define htonl(x) (endian()?(x):swapl(x))
-#define htonf(x) (endian()?(x):swapf(x))
-#define htond(x) (endian()?(x):swapd(x))
-#define htovs(x) (endian()?swaps(x):(x))
-#define htovl(x) (endian()?swapl(x):(x))
-#define htovf(x) (endian()?swapf(x):(x))
-#define htovd(x) (endian()?swapd(x):(x))
-#define vtohs(x) (endian()?swaps(x):(x))
-#define vtohl(x) (endian()?swapl(x):(x))
-#define vtohf(x) (endian()?swapf(x):(x))
-#define vtohd(x) (endian()?swapd(x):(x))
-#else
-#ifdef WORDS_BIGENDIAN
-#ifndef ntohs
-#define ntohs(x) (x)
-#define ntohl(x) (x)
-#define htons(x) (x)
-#define htonl(x) (x)
-#endif
-#define ntohf(x) (x)
-#define ntohd(x) (x)
-#define htonf(x) (x)
-#define htond(x) (x)
-#define htovs(x) swaps(x)
-#define htovl(x) swapl(x)
-#define htovf(x) swapf(x)
-#define htovd(x) swapd(x)
-#define vtohs(x) swaps(x)
-#define vtohl(x) swapl(x)
-#define vtohf(x) swapf(x)
-#define vtohd(x) swapd(x)
-#else /* LITTLE ENDIAN */
-#ifndef ntohs
-#undef ntohs
-#undef ntohl
-#undef htons
-#undef htonl
-#define ntohs(x) swaps(x)
-#define ntohl(x) swapl(x)
-#define htons(x) swaps(x)
-#define htonl(x) swapl(x)
-#endif
-#define ntohf(x) swapf(x)
-#define ntohd(x) swapd(x)
-#define htonf(x) swapf(x)
-#define htond(x) swapd(x)
-#define htovs(x) (x)
-#define htovl(x) (x)
-#define htovf(x) (x)
-#define htovd(x) (x)
-#define vtohs(x) (x)
-#define vtohl(x) (x)
-#define vtohf(x) (x)
-#define vtohd(x) (x)
-#endif
-#endif
-
-#ifdef FLOAT_SWAPPER
-#define FLOAT_CONVWITH(y) FLOAT_SWAPPER y;
-#define HTONF(x,y) (memcpy(&y,&x,sizeof(float)), \
- y = htonf((FLOAT_SWAPPER)y), \
- memcpy(&x,&y,sizeof(float)), \
- x)
-#define HTOVF(x,y) (memcpy(&y,&x,sizeof(float)), \
- y = htovf((FLOAT_SWAPPER)y), \
- memcpy(&x,&y,sizeof(float)), \
- x)
-#define NTOHF(x,y) (memcpy(&y,&x,sizeof(float)), \
- y = ntohf((FLOAT_SWAPPER)y), \
- memcpy(&x,&y,sizeof(float)), \
- x)
-#define VTOHF(x,y) (memcpy(&y,&x,sizeof(float)), \
- y = vtohf((FLOAT_SWAPPER)y), \
- memcpy(&x,&y,sizeof(float)), \
- x)
-#else
-#define FLOAT_CONVWITH(y)
-#define HTONF(x,y) htonf(x)
-#define HTOVF(x,y) htovf(x)
-#define NTOHF(x,y) ntohf(x)
-#define VTOHF(x,y) vtohf(x)
-#endif
-
-#ifdef DOUBLE_SWAPPER
-#define DOUBLE_CONVWITH(y) DOUBLE_SWAPPER y;
-#define HTOND(x,y) (memcpy(&y,&x,sizeof(double)), \
- y = htond((DOUBLE_SWAPPER)y), \
- memcpy(&x,&y,sizeof(double)), \
- x)
-#define HTOVD(x,y) (memcpy(&y,&x,sizeof(double)), \
- y = htovd((DOUBLE_SWAPPER)y), \
- memcpy(&x,&y,sizeof(double)), \
- x)
-#define NTOHD(x,y) (memcpy(&y,&x,sizeof(double)), \
- y = ntohd((DOUBLE_SWAPPER)y), \
- memcpy(&x,&y,sizeof(double)), \
- x)
-#define VTOHD(x,y) (memcpy(&y,&x,sizeof(double)), \
- y = vtohd((DOUBLE_SWAPPER)y), \
- memcpy(&x,&y,sizeof(double)), \
- x)
-#else
-#define DOUBLE_CONVWITH(y)
-#define HTOND(x,y) htond(x)
-#define HTOVD(x,y) htovd(x)
-#define NTOHD(x,y) ntohd(x)
-#define VTOHD(x,y) vtohd(x)
-#endif
-
-#if SIZEOF_LONG == SIZE32
-typedef long I32;
-typedef unsigned long U32;
-#define NUM2I32(x) NUM2LONG(x)
-#define NUM2U32(x) NUM2ULONG(x)
-#elif SIZEOF_INT == SIZE32
-typedef int I32;
-typedef unsigned int U32;
-#define NUM2I32(x) NUM2INT(x)
-#define NUM2U32(x) NUM2UINT(x)
-#endif
-
-#ifdef HAVE_LONG_LONG
-# define QUAD_SIZE sizeof(LONG_LONG)
-#else
-# define QUAD_SIZE 8
-#endif
-static char *toofew = "too few arguments";
-
-static void encodes _((VALUE,char*,int,int));
-static void qpencode _((VALUE,VALUE,int));
-
-static int uv_to_utf8 _((char*,unsigned long));
-static unsigned long utf8_to_uv _((char*,int*));
-
-static VALUE
-pack_pack(ary, fmt)
- VALUE ary, fmt;
-{
- static char *nul10 = "\0\0\0\0\0\0\0\0\0\0";
- static char *spc10 = " ";
- char *p, *pend;
- VALUE res, from, associates = 0;
- char type;
- int items, len, idx;
- char *ptr;
- int plen;
-#ifdef NATINT_PACK
- int natint; /* native integer */
-#endif
-
- StringValue(fmt);
- p = RSTRING(fmt)->ptr;
- pend = p + RSTRING(fmt)->len;
- res = rb_str_buf_new(0);
-
- items = RARRAY(ary)->len;
- idx = 0;
-
-#define THISFROM RARRAY(ary)->ptr[idx]
-#define NEXTFROM (items-- > 0 ? RARRAY(ary)->ptr[idx++] : (rb_raise(rb_eArgError, toofew),0))
-
- while (p < pend) {
- type = *p++; /* get data type */
-#ifdef NATINT_PACK
- natint = 0;
-#endif
-
- if (ISSPACE(type)) continue;
- if (type == '#') {
- while ((p < pend) && (*p != '\n')) {
- p++;
- }
- continue;
- }
- if (*p == '_' || *p == '!') {
- char *natstr = "sSiIlL";
-
- if (strchr(natstr, type)) {
-#ifdef NATINT_PACK
- natint = 1;
-#endif
- p++;
- }
- else {
- rb_raise(rb_eArgError, "'%c' allowed only after types %s", *p, natstr);
- }
- }
- if (*p == '*') { /* set data length */
- len = strchr("@Xxu", type) ? 0 : items;
- p++;
- }
- else if (ISDIGIT(*p)) {
- len = strtoul(p, (char**)&p, 10);
- }
- else {
- len = 1;
- }
-
- switch (type) {
- case 'A': case 'a': case 'Z':
- case 'B': case 'b':
- case 'H': case 'h':
- from = NEXTFROM;
- if (NIL_P(from)) {
- ptr = "";
- plen = 0;
- }
- else {
- StringValue(from);
- ptr = RSTRING(from)->ptr;
- plen = RSTRING(from)->len;
- }
-
- if (p[-1] == '*')
- len = plen;
-
- switch (type) {
- case 'a':
- case 'A':
- case 'Z':
- if (plen >= len)
- rb_str_buf_cat(res, ptr, len);
- else {
- rb_str_buf_cat(res, ptr, plen);
- len -= plen;
- while (len >= 10) {
- rb_str_buf_cat(res, (type == 'A')?spc10:nul10, 10);
- len -= 10;
- }
- rb_str_buf_cat(res, (type == 'A')?spc10:nul10, len);
- }
- break;
-
- case 'b':
- {
- int byte = 0;
- int i, j = 0;
-
- if (len > plen) {
- j = (len - plen + 1)/2;
- len = plen;
- }
- for (i=0; i++ < len; ptr++) {
- if (*ptr & 1)
- byte |= 128;
- if (i & 7)
- byte >>= 1;
- else {
- char c = byte & 0xff;
- rb_str_buf_cat(res, &c, 1);
- byte = 0;
- }
- }
- if (len & 7) {
- char c;
- byte >>= 7 - (len & 7);
- c = byte & 0xff;
- rb_str_buf_cat(res, &c, 1);
- }
- rb_str_buf_cat(res, 0, j);
- }
- break;
-
- case 'B':
- {
- int byte = 0;
- int i, j = 0;
-
- if (len > plen) {
- j = (len - plen + 1)/2;
- len = plen;
- }
- for (i=0; i++ < len; ptr++) {
- byte |= *ptr & 1;
- if (i & 7)
- byte <<= 1;
- else {
- char c = byte & 0xff;
- rb_str_buf_cat(res, &c, 1);
- byte = 0;
- }
- }
- if (len & 7) {
- char c;
- byte <<= 7 - (len & 7);
- c = byte & 0xff;
- rb_str_buf_cat(res, &c, 1);
- }
- rb_str_buf_cat(res, 0, j);
- }
- break;
-
- case 'h':
- {
- int byte = 0;
- int i, j = 0;
-
- if (len > plen) {
- j = (len - plen + 1)/2;
- len = plen;
- }
- for (i=0; i++ < len; ptr++) {
- if (ISALPHA(*ptr))
- byte |= (((*ptr & 15) + 9) & 15) << 4;
- else
- byte |= (*ptr & 15) << 4;
- if (i & 1)
- byte >>= 4;
- else {
- char c = byte & 0xff;
- rb_str_buf_cat(res, &c, 1);
- byte = 0;
- }
- }
- if (len & 1) {
- char c = byte & 0xff;
- rb_str_buf_cat(res, &c, 1);
- }
- rb_str_buf_cat(res, 0, j);
- }
- break;
-
- case 'H':
- {
- int byte = 0;
- int i, j = 0;
-
- if (len > plen) {
- j = (len - plen + 1)/2;
- len = plen;
- }
- for (i=0; i++ < len; ptr++) {
- if (ISALPHA(*ptr))
- byte |= ((*ptr & 15) + 9) & 15;
- else
- byte |= *ptr & 15;
- if (i & 1)
- byte <<= 4;
- else {
- char c = byte & 0xff;
- rb_str_buf_cat(res, &c, 1);
- byte = 0;
- }
- }
- if (len & 1) {
- char c = byte & 0xff;
- rb_str_buf_cat(res, &c, 1);
- }
- rb_str_buf_cat(res, 0, j);
- }
- break;
- }
- break;
-
- case 'c':
- case 'C':
- while (len-- > 0) {
- char c;
-
- from = NEXTFROM;
- if (NIL_P(from)) c = 0;
- else {
- c = NUM2INT(from);
- }
- rb_str_buf_cat(res, &c, sizeof(char));
- }
- break;
-
- case 's':
- case 'S':
- while (len-- > 0) {
- short s;
-
- from = NEXTFROM;
- if (NIL_P(from)) s = 0;
- else {
- s = NUM2INT(from);
- }
- rb_str_buf_cat(res, OFF16(&s), NATINT_LEN(short,2));
- }
- break;
-
- case 'i':
- case 'I':
- while (len-- > 0) {
- int i;
-
- from = NEXTFROM;
- if (NIL_P(from)) i = 0;
- else {
- i = NUM2UINT(from);
- }
- rb_str_buf_cat(res, (char*)&i, sizeof(int));
- }
- break;
-
- case 'l':
- case 'L':
- while (len-- > 0) {
- long l;
-
- from = NEXTFROM;
- if (NIL_P(from)) l = 0;
- else {
- l = NATINT_U32(from);
- }
- rb_str_buf_cat(res, OFF32(&l), NATINT_LEN(long,4));
- }
- break;
-
- case 'q':
- case 'Q':
- while (len-- > 0) {
- char tmp[QUAD_SIZE];
-
- from = NEXTFROM;
- if (NIL_P(from)) from = INT2FIX(0);
- rb_quad_pack(tmp, from);
- rb_str_buf_cat(res, (char*)&tmp, QUAD_SIZE);
- }
- break;
-
- case 'n':
- while (len-- > 0) {
- unsigned short s;
-
- from = NEXTFROM;
- if (NIL_P(from)) s = 0;
- else {
- s = NUM2INT(from);
- }
- s = htons(s);
- rb_str_buf_cat(res, OFF16B(&s), NATINT_LEN(short,2));
- }
- break;
-
- case 'N':
- while (len-- > 0) {
- unsigned long l;
-
- from = NEXTFROM;
- if (NIL_P(from)) l = 0;
- else {
- l = NATINT_U32(from);
- }
- l = htonl(l);
- rb_str_buf_cat(res, OFF32B(&l), NATINT_LEN(long,4));
- }
- break;
-
- case 'v':
- while (len-- > 0) {
- unsigned short s;
-
- from = NEXTFROM;
- if (NIL_P(from)) s = 0;
- else {
- s = NUM2INT(from);
- }
- s = htovs(s);
- rb_str_buf_cat(res, OFF16(&s), NATINT_LEN(short,2));
- }
- break;
-
- case 'V':
- while (len-- > 0) {
- unsigned long l;
-
- from = NEXTFROM;
- if (NIL_P(from)) l = 0;
- else {
- l = NATINT_U32(from);
- }
- l = htovl(l);
- rb_str_buf_cat(res, OFF32(&l), NATINT_LEN(long,4));
- }
- break;
-
- case 'f':
- case 'F':
- while (len-- > 0) {
- float f;
-
- from = NEXTFROM;
- f = RFLOAT(rb_Float(from))->value;
- rb_str_buf_cat(res, (char*)&f, sizeof(float));
- }
- break;
-
- case 'e':
- while (len-- > 0) {
- float f;
- FLOAT_CONVWITH(ftmp);
-
- from = NEXTFROM;
- f = RFLOAT(rb_Float(from))->value;
- f = HTOVF(f,ftmp);
- rb_str_buf_cat(res, (char*)&f, sizeof(float));
- }
- break;
-
- case 'E':
- while (len-- > 0) {
- double d;
- DOUBLE_CONVWITH(dtmp);
-
- from = NEXTFROM;
- d = RFLOAT(rb_Float(from))->value;
- d = HTOVD(d,dtmp);
- rb_str_buf_cat(res, (char*)&d, sizeof(double));
- }
- break;
-
- case 'd':
- case 'D':
- while (len-- > 0) {
- double d;
-
- from = NEXTFROM;
- d = RFLOAT(rb_Float(from))->value;
- rb_str_buf_cat(res, (char*)&d, sizeof(double));
- }
- break;
-
- case 'g':
- while (len-- > 0) {
- float f;
- FLOAT_CONVWITH(ftmp);
-
- from = NEXTFROM;
- f = RFLOAT(rb_Float(from))->value;
- f = HTONF(f,ftmp);
- rb_str_buf_cat(res, (char*)&f, sizeof(float));
- }
- break;
-
- case 'G':
- while (len-- > 0) {
- double d;
- DOUBLE_CONVWITH(dtmp);
-
- from = NEXTFROM;
- d = RFLOAT(rb_Float(from))->value;
- d = HTOND(d,dtmp);
- rb_str_buf_cat(res, (char*)&d, sizeof(double));
- }
- break;
-
- case 'x':
- grow:
- while (len >= 10) {
- rb_str_buf_cat(res, nul10, 10);
- len -= 10;
- }
- rb_str_buf_cat(res, nul10, len);
- break;
-
- case 'X':
- shrink:
- plen = RSTRING(res)->len;
- if (plen < len)
- rb_raise(rb_eArgError, "X outside of string");
- RSTRING(res)->len = plen - len;
- RSTRING(res)->ptr[plen - len] = '\0';
- break;
-
- case '@':
- len -= RSTRING(res)->len;
- if (len > 0) goto grow;
- len = -len;
- if (len > 0) goto shrink;
- break;
-
- case '%':
- rb_raise(rb_eArgError, "%% is not supported");
- break;
-
- case 'U':
- while (len-- > 0) {
- unsigned long l;
- char buf[8];
- int le;
-
- from = NEXTFROM;
- if (NIL_P(from)) l = 0;
- else {
- l = NUM2ULONG(from);
- }
- le = uv_to_utf8(buf, l);
- rb_str_buf_cat(res, (char*)buf, le);
- }
- break;
-
- case 'u':
- case 'm':
- from = NEXTFROM;
- StringValue(from);
- ptr = RSTRING(from)->ptr;
- plen = RSTRING(from)->len;
-
- if (len <= 2)
- len = 45;
- else
- len = len / 3 * 3;
- while (plen > 0) {
- int todo;
-
- if (plen > len)
- todo = len;
- else
- todo = plen;
- encodes(res, ptr, todo, type);
- plen -= todo;
- ptr += todo;
- }
- break;
-
- case 'M':
- from = rb_obj_as_string(NEXTFROM);
- if (len <= 1)
- len = 72;
- qpencode(res, from, len);
- break;
-
- case 'P':
- from = THISFROM;
- if (!NIL_P(from)) {
- StringValue(from);
- if (RSTRING(from)->len < len) {
- rb_raise(rb_eArgError, "too short buffer for P(%d for %d)",
- RSTRING(from)->len, len);
- }
- }
- len = 1;
- /* FALL THROUGH */
- case 'p':
- while (len-- > 0) {
- char *t;
- from = NEXTFROM;
- if (NIL_P(from)) {
- t = 0;
- }
- else {
- StringValue(from);
- t = RSTRING(from)->ptr;
- }
- if (!associates) {
- associates = rb_ary_new();
- }
- rb_ary_push(associates, from);
- rb_str_buf_cat(res, (char*)&t, sizeof(char*));
- }
- break;
-
- case 'w':
- while (len-- > 0) {
- unsigned long ul;
- VALUE buf = rb_str_new(0, 0);
- char c, *bufs, *bufe;
-
- from = NEXTFROM;
- if (TYPE(from) == T_BIGNUM) {
- VALUE big128 = rb_uint2big(128);
- while (TYPE(from) == T_BIGNUM) {
- from = rb_big_divmod(from, big128);
- c = NUM2INT(RARRAY(from)->ptr[1]) | 0x80; /* mod */
- rb_str_buf_cat(buf, &c, sizeof(char));
- from = RARRAY(from)->ptr[0]; /* div */
- }
- }
-
- if (NIL_P(from)) ul = 0;
- else {
- ul = NUM2ULONG(from);
- }
-
- while (ul) {
- c = ((ul & 0x7f) | 0x80);
- rb_str_buf_cat(buf, &c, sizeof(char));
- ul >>= 7;
- }
-
- if (RSTRING(buf)->len) {
- bufs = RSTRING(buf)->ptr;
- bufe = bufs + RSTRING(buf)->len - 1;
- *bufs &= 0x7f; /* clear continue bit */
- while (bufs < bufe) { /* reverse */
- c = *bufs;
- *bufs++ = *bufe;
- *bufe-- = c;
- }
- rb_str_buf_cat(res, RSTRING(buf)->ptr, RSTRING(buf)->len);
- }
- else {
- c = 0;
- rb_str_buf_cat(res, &c, sizeof(char));
- }
- }
- break;
-
- default:
- break;
- }
- }
-
- if (associates) {
- rb_str_associate(res, associates);
- }
- return res;
-}
-
-static char uu_table[] =
-"`!\"#$%&'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\\]^_";
-static char b64_table[] =
-"ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
-
-static void
-encodes(str, s, len, type)
- VALUE str;
- char *s;
- int len;
- int type;
-{
- char *buff = ALLOCA_N(char, len * 4 / 3 + 6);
- int i = 0;
- char *trans = type == 'u' ? uu_table : b64_table;
- int padding;
-
- if (type == 'u') {
- buff[i++] = len + ' ';
- padding = '`';
- }
- else {
- padding = '=';
- }
- while (len >= 3) {
- buff[i++] = trans[077 & (*s >> 2)];
- buff[i++] = trans[077 & (((*s << 4) & 060) | ((s[1] >> 4) & 017))];
- buff[i++] = trans[077 & (((s[1] << 2) & 074) | ((s[2] >> 6) & 03))];
- buff[i++] = trans[077 & s[2]];
- s += 3;
- len -= 3;
- }
- if (len == 2) {
- buff[i++] = trans[077 & (*s >> 2)];
- buff[i++] = trans[077 & (((*s << 4) & 060) | ((s[1] >> 4) & 017))];
- buff[i++] = trans[077 & (((s[1] << 2) & 074) | (('\0' >> 6) & 03))];
- buff[i++] = padding;
- }
- else if (len == 1) {
- buff[i++] = trans[077 & (*s >> 2)];
- buff[i++] = trans[077 & (((*s << 4) & 060) | (('\0' >> 4) & 017))];
- buff[i++] = padding;
- buff[i++] = padding;
- }
- buff[i++] = '\n';
- rb_str_buf_cat(str, buff, i);
-}
-
-static char hex_table[] = "0123456789ABCDEF";
-
-static void
-qpencode(str, from, len)
- VALUE str, from;
- int len;
-{
- char buff[1024];
- int i = 0, n = 0, prev = EOF;
- unsigned char *s = (unsigned char*)RSTRING(from)->ptr;
- unsigned char *send = s + RSTRING(from)->len;
-
- while (s < send) {
- if ((*s > 126) ||
- (*s < 32 && *s != '\n' && *s != '\t') ||
- (*s == '=')) {
- buff[i++] = '=';
- buff[i++] = hex_table[*s >> 4];
- buff[i++] = hex_table[*s & 0x0f];
- n += 3;
- prev = EOF;
- }
- else if (*s == '\n') {
- if (prev == ' ' || prev == '\t') {
- buff[i++] = '=';
- buff[i++] = *s;
- }
- buff[i++] = *s;
- n = 0;
- prev = *s;
- }
- else {
- buff[i++] = *s;
- n++;
- prev = *s;
- }
- if (n > len) {
- buff[i++] = '=';
- buff[i++] = '\n';
- n = 0;
- prev = '\n';
- }
- if (i > 1024 - 5) {
- rb_str_buf_cat(str, buff, i);
- i = 0;
- }
- s++;
- }
- if (n > 0) {
- buff[i++] = '=';
- buff[i++] = '\n';
- }
- if (i > 0) {
- rb_str_buf_cat(str, buff, i);
- }
-}
-
-static inline int
-hex2num(c)
- char c;
-{
- switch (c) {
- case '0': case '1': case '2': case '3': case '4':
- case '5': case '6': case '7': case '8': case '9':
- return c - '0';
- case 'a': case 'b': case 'c':
- case 'd': case 'e': case 'f':
- return c - 'a' + 10;
- case 'A': case 'B': case 'C':
- case 'D': case 'E': case 'F':
- return c - 'A' + 10;
- default:
- return -1;
- }
-}
-
-#define PACK_LENGTH_ADJUST_SIZE(sz) do { \
- tmp = 0; \
- if (len > (send-s)/sz) { \
- if (!star) { \
- tmp = len-(send-s)/sz; \
- } \
- len = (send-s)/sz; \
- } \
-} while (0)
-
-#ifdef NATINT_PACK
-#define PACK_LENGTH_ADJUST(type,sz) do { \
- int t__len = NATINT_LEN(type,(sz)); \
- PACK_LENGTH_ADJUST_SIZE(t__len); \
-} while (0)
-#else
-#define PACK_LENGTH_ADJUST(type,sz) do { \
- PACK_LENGTH_ADJUST_SIZE(sizeof(type)); \
-} while (0)
-#endif
-
-#define PACK_ITEM_ADJUST() while (tmp--) rb_ary_push(ary, Qnil);
-
-static VALUE
-pack_unpack(str, fmt)
- VALUE str, fmt;
-{
- static char *hexdigits = "0123456789abcdef0123456789ABCDEFx";
- char *s, *send;
- char *p, *pend;
- VALUE ary;
- char type;
- int len, tmp, star;
-#ifdef NATINT_PACK
- int natint; /* native integer */
-#endif
-
- StringValue(str);
- s = RSTRING(str)->ptr;
- send = s + RSTRING(str)->len;
- StringValue(fmt);
- p = RSTRING(fmt)->ptr;
- pend = p + RSTRING(fmt)->len;
-
- ary = rb_ary_new();
- while (p < pend) {
- type = *p++;
-#ifdef NATINT_PACK
- natint = 0;
-#endif
-
- if (ISSPACE(type)) continue;
- if (type == '#') {
- while ((p < pend) && (*p != '\n')) {
- p++;
- }
- continue;
- }
- star = 0;
- if (*p == '_' || *p == '!') {
- char *natstr = "sSiIlL";
-
- if (strchr(natstr, type)) {
-#ifdef NATINT_PACK
- natint = 1;
-#endif
- p++;
- }
- else {
- rb_raise(rb_eArgError, "'%c' allowed only after types %s", *p, natstr);
- }
- }
- if (p >= pend)
- len = 1;
- else if (*p == '*') {
- star = 1;
- len = send - s;
- p++;
- }
- else if (ISDIGIT(*p)) {
- len = strtoul(p, (char**)&p, 10);
- }
- else {
- len = (type != '@');
- }
-
- switch (type) {
- case '%':
- rb_raise(rb_eArgError, "%% is not supported");
- break;
-
- case 'A':
- if (len > send - s) len = send - s;
- {
- int end = len;
- char *t = s + len - 1;
-
- while (t >= s) {
- if (*t != ' ' && *t != '\0') break;
- t--; len--;
- }
- rb_ary_push(ary, rb_str_new(s, len));
- s += end;
- }
- break;
-
- case 'Z':
- if (len > send - s) len = send - s;
- {
- int end = len;
- char *t = s + len - 1;
-
- while (t >= s) {
- if (*t) break;
- t--; len--;
- }
- rb_ary_push(ary, rb_str_new(s, len));
- s += end;
- }
- break;
-
- case 'a':
- if (len > send - s) len = send - s;
- rb_ary_push(ary, rb_str_new(s, len));
- s += len;
- break;
-
-
- case 'b':
- {
- VALUE bitstr;
- char *t;
- int bits, i;
-
- if (p[-1] == '*' || len > (send - s) * 8)
- len = (send - s) * 8;
- bits = 0;
- rb_ary_push(ary, bitstr = rb_str_new(0, len));
- t = RSTRING(bitstr)->ptr;
- for (i=0; i<len; i++) {
- if (i & 7) bits >>= 1;
- else bits = *s++;
- *t++ = (bits & 1) ? '1' : '0';
- }
- }
- break;
-
- case 'B':
- {
- VALUE bitstr;
- char *t;
- int bits, i;
-
- if (p[-1] == '*' || len > (send - s) * 8)
- len = (send - s) * 8;
- bits = 0;
- rb_ary_push(ary, bitstr = rb_str_new(0, len));
- t = RSTRING(bitstr)->ptr;
- for (i=0; i<len; i++) {
- if (i & 7) bits <<= 1;
- else bits = *s++;
- *t++ = (bits & 128) ? '1' : '0';
- }
- }
- break;
-
- case 'h':
- {
- VALUE bitstr;
- char *t;
- int bits, i;
-
- if (p[-1] == '*' || len > (send - s) * 2)
- len = (send - s) * 2;
- bits = 0;
- rb_ary_push(ary, bitstr = rb_str_new(0, len));
- t = RSTRING(bitstr)->ptr;
- for (i=0; i<len; i++) {
- if (i & 1)
- bits >>= 4;
- else
- bits = *s++;
- *t++ = hexdigits[bits & 15];
- }
- }
- break;
-
- case 'H':
- {
- VALUE bitstr;
- char *t;
- int bits, i;
-
- if (p[-1] == '*' || len > (send - s) * 2)
- len = (send - s) * 2;
- bits = 0;
- rb_ary_push(ary, bitstr = rb_str_new(0, len));
- t = RSTRING(bitstr)->ptr;
- for (i=0; i<len; i++) {
- if (i & 1)
- bits <<= 4;
- else
- bits = *s++;
- *t++ = hexdigits[(bits >> 4) & 15];
- }
- }
- break;
-
- case 'c':
- PACK_LENGTH_ADJUST(char,sizeof(char));
- while (len-- > 0) {
- int c = *s++;
- if (c > (char)127) c-=256;
- rb_ary_push(ary, INT2FIX(c));
- }
- PACK_ITEM_ADJUST();
- break;
-
- case 'C':
- PACK_LENGTH_ADJUST(unsigned char,sizeof(unsigned char));
- while (len-- > 0) {
- unsigned char c = *s++;
- rb_ary_push(ary, INT2FIX(c));
- }
- PACK_ITEM_ADJUST();
- break;
-
- case 's':
- PACK_LENGTH_ADJUST(short,2);
- while (len-- > 0) {
- short tmp = 0;
- memcpy(OFF16(&tmp), s, NATINT_LEN(short,2));
- s += NATINT_LEN(short,2);
- rb_ary_push(ary, INT2FIX(tmp));
- }
- PACK_ITEM_ADJUST();
- break;
-
- case 'S':
- PACK_LENGTH_ADJUST(unsigned short,2);
- while (len-- > 0) {
- unsigned short tmp = 0;
- memcpy(OFF16(&tmp), s, NATINT_LEN(unsigned short,2));
- s += NATINT_LEN(unsigned short,2);
- rb_ary_push(ary, INT2FIX(tmp));
- }
- PACK_ITEM_ADJUST();
- break;
-
- case 'i':
- PACK_LENGTH_ADJUST(int,sizeof(int));
- while (len-- > 0) {
- int tmp;
- memcpy(&tmp, s, sizeof(int));
- s += sizeof(int);
- rb_ary_push(ary, rb_int2inum(tmp));
- }
- PACK_ITEM_ADJUST();
- break;
-
- case 'I':
- PACK_LENGTH_ADJUST(unsigned int,sizeof(unsigned int));
- while (len-- > 0) {
- unsigned int tmp;
- memcpy(&tmp, s, sizeof(unsigned int));
- s += sizeof(unsigned int);
- rb_ary_push(ary, rb_uint2inum(tmp));
- }
- PACK_ITEM_ADJUST();
- break;
-
- case 'l':
- PACK_LENGTH_ADJUST(long,4);
- while (len-- > 0) {
- long tmp = 0;
- memcpy(OFF32(&tmp), s, NATINT_LEN(long,4));
- s += NATINT_LEN(long,4);
- rb_ary_push(ary, rb_int2inum(tmp));
- }
- PACK_ITEM_ADJUST();
- break;
-
- case 'L':
- PACK_LENGTH_ADJUST(unsigned long,4);
- while (len-- > 0) {
- unsigned long tmp = 0;
- memcpy(OFF32(&tmp), s, NATINT_LEN(unsigned long,4));
- s += NATINT_LEN(unsigned long,4);
- rb_ary_push(ary, rb_uint2inum(tmp));
- }
- PACK_ITEM_ADJUST();
- break;
-
- case 'q':
- PACK_LENGTH_ADJUST_SIZE(QUAD_SIZE);
- while (len-- > 0) {
- char *tmp = (char*)s;
- s += QUAD_SIZE;
- rb_ary_push(ary, rb_quad_unpack(tmp, 1));
- }
- PACK_ITEM_ADJUST();
- break;
- case 'Q':
- PACK_LENGTH_ADJUST_SIZE(QUAD_SIZE);
- while (len-- > 0) {
- char *tmp = (char*)s;
- s += QUAD_SIZE;
- rb_ary_push(ary, rb_quad_unpack(tmp, 0));
- }
- break;
-
- case 'n':
- PACK_LENGTH_ADJUST(unsigned short,2);
- while (len-- > 0) {
- unsigned short tmp = 0;
- memcpy(OFF16B(&tmp), s, NATINT_LEN(unsigned short,2));
- s += NATINT_LEN(unsigned short,2);
- rb_ary_push(ary, rb_uint2inum(ntohs(tmp)));
- }
- PACK_ITEM_ADJUST();
- break;
-
- case 'N':
- PACK_LENGTH_ADJUST(unsigned long,4);
- while (len-- > 0) {
- unsigned long tmp = 0;
- memcpy(OFF32B(&tmp), s, NATINT_LEN(unsigned long,4));
- s += NATINT_LEN(unsigned long,4);
- rb_ary_push(ary, rb_uint2inum(ntohl(tmp)));
- }
- PACK_ITEM_ADJUST();
- break;
-
- case 'v':
- PACK_LENGTH_ADJUST(unsigned short,2);
- while (len-- > 0) {
- unsigned short tmp = 0;
- memcpy(OFF16(&tmp), s, NATINT_LEN(unsigned short,2));
- s += NATINT_LEN(unsigned short,2);
- rb_ary_push(ary, rb_uint2inum(vtohs(tmp)));
- }
- PACK_ITEM_ADJUST();
- break;
-
- case 'V':
- PACK_LENGTH_ADJUST(unsigned long,4);
- while (len-- > 0) {
- unsigned long tmp = 0;
- memcpy(OFF32(&tmp), s, NATINT_LEN(long,4));
- s += NATINT_LEN(long,4);
- rb_ary_push(ary, rb_uint2inum(vtohl(tmp)));
- }
- PACK_ITEM_ADJUST();
- break;
-
- case 'f':
- case 'F':
- PACK_LENGTH_ADJUST(float,sizeof(float));
- while (len-- > 0) {
- float tmp;
- memcpy(&tmp, s, sizeof(float));
- s += sizeof(float);
- rb_ary_push(ary, rb_float_new((double)tmp));
- }
- PACK_ITEM_ADJUST();
- break;
-
- case 'e':
- PACK_LENGTH_ADJUST(float,sizeof(float));
- while (len-- > 0) {
- float tmp;
- FLOAT_CONVWITH(ftmp);
-
- memcpy(&tmp, s, sizeof(float));
- s += sizeof(float);
- tmp = VTOHF(tmp,ftmp);
- rb_ary_push(ary, rb_float_new((double)tmp));
- }
- PACK_ITEM_ADJUST();
- break;
-
- case 'E':
- PACK_LENGTH_ADJUST(double,sizeof(double));
- while (len-- > 0) {
- double tmp;
- DOUBLE_CONVWITH(dtmp);
-
- memcpy(&tmp, s, sizeof(double));
- s += sizeof(double);
- tmp = VTOHD(tmp,dtmp);
- rb_ary_push(ary, rb_float_new(tmp));
- }
- PACK_ITEM_ADJUST();
- break;
-
- case 'D':
- case 'd':
- PACK_LENGTH_ADJUST(double,sizeof(double));
- while (len-- > 0) {
- double tmp;
- memcpy(&tmp, s, sizeof(double));
- s += sizeof(double);
- rb_ary_push(ary, rb_float_new(tmp));
- }
- PACK_ITEM_ADJUST();
- break;
-
- case 'g':
- PACK_LENGTH_ADJUST(float,sizeof(float));
- while (len-- > 0) {
- float tmp;
- FLOAT_CONVWITH(ftmp;)
-
- memcpy(&tmp, s, sizeof(float));
- s += sizeof(float);
- tmp = NTOHF(tmp,ftmp);
- rb_ary_push(ary, rb_float_new((double)tmp));
- }
- PACK_ITEM_ADJUST();
- break;
-
- case 'G':
- PACK_LENGTH_ADJUST(double,sizeof(double));
- while (len-- > 0) {
- double tmp;
- DOUBLE_CONVWITH(dtmp);
-
- memcpy(&tmp, s, sizeof(double));
- s += sizeof(double);
- tmp = NTOHD(tmp,dtmp);
- rb_ary_push(ary, rb_float_new(tmp));
- }
- PACK_ITEM_ADJUST();
- break;
-
- case 'U':
- if (len > send - s) len = send - s;
- while (len > 0 && s < send) {
- int alen = len;
- unsigned long l;
-
- l = utf8_to_uv(s, &alen);
- s += alen; len -= alen;
- rb_ary_push(ary, rb_uint2inum(l));
- }
- break;
-
- case 'u':
- {
- VALUE str = rb_str_new(0, (send - s)*3/4);
- char *ptr = RSTRING(str)->ptr;
- int total = 0;
-
- while (s < send && *s > ' ' && *s < 'a') {
- long a,b,c,d;
- char hunk[4];
-
- hunk[3] = '\0';
- len = (*s++ - ' ') & 077;
- total += len;
- if (total > RSTRING(str)->len) {
- len -= total - RSTRING(str)->len;
- total = RSTRING(str)->len;
- }
-
- while (len > 0) {
- int mlen = len > 3 ? 3 : len;
-
- if (s < send && *s >= ' ')
- a = (*s++ - ' ') & 077;
- else
- a = 0;
- if (s < send && *s >= ' ')
- b = (*s++ - ' ') & 077;
- else
- b = 0;
- if (s < send && *s >= ' ')
- c = (*s++ - ' ') & 077;
- else
- c = 0;
- if (s < send && *s >= ' ')
- d = (*s++ - ' ') & 077;
- else
- d = 0;
- hunk[0] = a << 2 | b >> 4;
- hunk[1] = b << 4 | c >> 2;
- hunk[2] = c << 6 | d;
- memcpy(ptr, hunk, mlen);
- ptr += mlen;
- len -= mlen;
- }
- if (*s == '\r') s++;
- if (*s == '\n') s++;
- else if (s < send && (s+1 == send || s[1] == '\n'))
- s += 2; /* possible checksum byte */
- }
-
- RSTRING(str)->ptr[total] = '\0';
- RSTRING(str)->len = total;
- rb_ary_push(ary, str);
- }
- break;
-
- case 'm':
- {
- VALUE str = rb_str_new(0, (send - s)*3/4);
- char *ptr = RSTRING(str)->ptr;
- int a,b,c,d;
- static int first = 1;
- static int b64_xtable[256];
-
- if (first) {
- int i;
- first = 0;
-
- for (i = 0; i < 256; i++) {
- b64_xtable[i] = -1;
- }
- for (i = 0; i < 64; i++) {
- b64_xtable[(int)b64_table[i]] = i;
- }
- }
- for (;;) {
- while (s[0] == '\r' || s[0] == '\n') { s++; }
- if ((a = b64_xtable[(int)s[0]]) == -1) break;
- if ((b = b64_xtable[(int)s[1]]) == -1) break;
- if ((c = b64_xtable[(int)s[2]]) == -1) break;
- if ((d = b64_xtable[(int)s[3]]) == -1) break;
- *ptr++ = a << 2 | b >> 4;
- *ptr++ = b << 4 | c >> 2;
- *ptr++ = c << 6 | d;
- s += 4;
- }
- if (a != -1 && b != -1 && s[2] == '=') {
- *ptr++ = a << 2 | b >> 4;
- }
- if (a != -1 && b != -1 && c != -1 && s[3] == '=') {
- *ptr++ = a << 2 | b >> 4;
- *ptr++ = b << 4 | c >> 2;
- }
- *ptr = '\0';
- RSTRING(str)->len = ptr - RSTRING(str)->ptr;
- rb_ary_push(ary, str);
- }
- break;
-
- case 'M':
- {
- VALUE str = rb_str_new(0, send - s);
- char *ptr = RSTRING(str)->ptr;
- int c1, c2;
-
- while (s < send) {
- if (*s == '=') {
- if (++s == send) break;
- if (*s != '\n') {
- if ((c1 = hex2num(*s)) == -1) break;
- if (++s == send) break;
- if ((c2 = hex2num(*s)) == -1) break;
- *ptr++ = c1 << 4 | c2;
- }
- }
- else {
- *ptr++ = *s;
- }
- s++;
- }
- *ptr = '\0';
- RSTRING(str)->len = ptr - RSTRING(str)->ptr;
- rb_ary_push(ary, str);
- }
- break;
-
- case '@':
- s = RSTRING(str)->ptr + len;
- break;
-
- case 'X':
- if (len > s - RSTRING(str)->ptr)
- rb_raise(rb_eArgError, "X outside of string");
- s -= len;
- break;
-
- case 'x':
- if (len > send - s)
- rb_raise(rb_eArgError, "x outside of string");
- s += len;
- break;
-
- case 'P':
- if (sizeof(char *) <= send - s) {
- char *t;
- VALUE tmp;
-
- memcpy(&t, s, sizeof(char *));
- s += sizeof(char *);
-
- if (t) {
- VALUE a, *p, *pend;
-
- if (!(a = rb_str_associated(str))) {
- rb_raise(rb_eArgError, "no associated pointer");
- }
- p = RARRAY(a)->ptr;
- pend = p + RARRAY(a)->len;
- while (p < pend) {
- if (TYPE(*p) == T_STRING && RSTRING(*p)->ptr == t) {
- if (len > RSTRING(*p)->len) {
- len = RSTRING(*p)->len;
- }
- break;
- }
- p++;
- }
- if (p == pend) {
- rb_raise(rb_eArgError, "non associated pointer");
- }
- tmp = rb_tainted_str_new(t, len);
- }
- else {
- tmp = Qnil;
- }
- rb_ary_push(ary, tmp);
- }
- break;
-
- case 'p':
- if (len > (send - s) / sizeof(char *))
- len = (send - s) / sizeof(char *);
- while (len-- > 0) {
- if (send - s < sizeof(char *))
- break;
- else {
- VALUE tmp;
- char *t;
-
- memcpy(&t, s, sizeof(char *));
- s += sizeof(char *);
-
- if (t) {
- VALUE a, *p, *pend;
-
- if (!(a = rb_str_associated(str))) {
- rb_raise(rb_eArgError, "no associated pointer");
- }
- p = RARRAY(a)->ptr;
- pend = p + RARRAY(a)->len;
- while (p < pend) {
- if (TYPE(*p) == T_STRING && RSTRING(*p)->ptr == t) {
- break;
- }
- p++;
- }
- if (p == pend) {
- rb_raise(rb_eArgError, "non associated pointer");
- }
- tmp = rb_str_new2(t);
- }
- else {
- tmp = Qnil;
- }
- rb_ary_push(ary, tmp);
- }
- }
- break;
-
- case 'w':
- {
- unsigned long ul = 0;
- unsigned long ulmask = 0xfeL << ((sizeof(unsigned long) - 1) * 8);
-
- while (len > 0 && s < send) {
- ul <<= 7;
- ul |= (*s & 0x7f);
- if (!(*s++ & 0x80)) {
- rb_ary_push(ary, rb_uint2inum(ul));
- len--;
- ul = 0;
- }
- else if (ul & ulmask) {
- VALUE big = rb_uint2big(ul);
- VALUE big128 = rb_uint2big(128);
- while (s < send) {
- big = rb_big_mul(big, big128);
- big = rb_big_plus(big, rb_uint2big(*s & 0x7f));
- if (!(*s++ & 0x80)) {
- rb_ary_push(ary, big);
- len--;
- ul = 0;
- break;
- }
- }
- }
- }
- }
- break;
-
- default:
- break;
- }
- }
-
- return ary;
-}
-
-#define BYTEWIDTH 8
-
-static int
-uv_to_utf8(buf, uv)
- char *buf;
- unsigned long uv;
-{
- if (uv <= 0x7f) {
- buf[0] = (char)uv;
- return 1;
- }
- if (uv <= 0x7ff) {
- buf[0] = ((uv>>6)&0xff)|0xc0;
- buf[1] = (uv&0x3f)|0x80;
- return 2;
- }
- if (uv <= 0xffff) {
- buf[0] = ((uv>>12)&0xff)|0xe0;
- buf[1] = ((uv>>6)&0x3f)|0x80;
- buf[2] = (uv&0x3f)|0x80;
- return 3;
- }
- if (uv <= 0x1fffff) {
- buf[0] = ((uv>>18)&0xff)|0xf0;
- buf[1] = ((uv>>12)&0x3f)|0x80;
- buf[2] = ((uv>>6)&0x3f)|0x80;
- buf[3] = (uv&0x3f)|0x80;
- return 4;
- }
- if (uv <= 0x3ffffff) {
- buf[0] = ((uv>>24)&0xff)|0xf8;
- buf[1] = ((uv>>18)&0x3f)|0x80;
- buf[2] = ((uv>>12)&0x3f)|0x80;
- buf[3] = ((uv>>6)&0x3f)|0x80;
- buf[4] = (uv&0x3f)|0x80;
- return 5;
- }
- if (uv <= 0x7fffffff) {
- buf[0] = ((uv>>30)&0xff)|0xfc;
- buf[1] = ((uv>>24)&0x3f)|0x80;
- buf[2] = ((uv>>18)&0x3f)|0x80;
- buf[3] = ((uv>>12)&0x3f)|0x80;
- buf[4] = ((uv>>6)&0x3f)|0x80;
- buf[5] = (uv&0x3f)|0x80;
- return 6;
- }
-#if SIZEOF_LONG > 4
- if (uv <= 0xfffffffff) {
-#endif
- buf[0] = 0xfe;
- buf[1] = ((uv>>30)&0x3f)|0x80;
- buf[2] = ((uv>>24)&0x3f)|0x80;
- buf[3] = ((uv>>18)&0x3f)|0x80;
- buf[4] = ((uv>>12)&0x3f)|0x80;
- buf[5] = ((uv>>6)&0x3f)|0x80;
- buf[6] = (uv&0x3f)|0x80;
- return 7;
-#if SIZEOF_LONG > 4
- }
- rb_raise(rb_eArgError, "uv_to_utf8(); too big value");
-#endif
-}
-
-static unsigned long
-utf8_to_uv(p, lenp)
- char *p;
- int *lenp;
-{
- int c = (*p++)&0xff;
- unsigned long uv;
- int n = 1;
-
- if (c < 0xc0) n = 1;
- else if (c < 0xe0) n = 2;
- else if (c < 0xf0) n = 3;
- else if (c < 0xf8) n = 4;
- else if (c < 0xfc) n = 5;
- else if (c < 0xfe) n = 6;
- else if (c == 0xfe) n = 7;
- if (n > *lenp) return 0;
- *lenp = n--;
-
- uv = c;
- if (n != 0) {
- uv &= (1<<(BYTEWIDTH-2-n)) - 1;
- while (n--) {
- uv = uv << 6 | *p++ & ((1<<6)-1);
- }
- }
- return uv;
-}
-
-void
-Init_pack()
-{
- rb_define_method(rb_cArray, "pack", pack_pack, 1);
- rb_define_method(rb_cString, "unpack", pack_unpack, 1);
-}
generated by cgit v1.2.3 (git 2.25.1) at 2024-06-14 20:48:51 +0000