mirror of
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65a5162550
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@520 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
1686 lines
34 KiB
C
1686 lines
34 KiB
C
/************************************************
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pack.c -
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$Author$
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$Date$
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created at: Thu Feb 10 15:17:05 JST 1994
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Copyright (C) 1993-1999 Yukihiro Matsumoto
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************************************************/
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#include "ruby.h"
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#include <sys/types.h>
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#include <ctype.h>
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#define SIZE16 2
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#define SIZE32 4
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#if SIZEOF_SHORT != 2 || SIZEOF_LONG != 4
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# define NATINT_PACK
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#endif
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#ifdef NATINT_PACK
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# define NATINT_LEN(type,len) (natint?sizeof(type):(len))
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#else
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# define NATINT_LEN(type,len) sizeof(type)
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#endif
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#define define_swapx(x, xtype) \
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static xtype \
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TOKEN_PASTE(swap,x)(z) \
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xtype z; \
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{ \
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xtype r; \
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xtype *zp; \
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unsigned char *s, *t; \
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int i; \
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\
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zp = (xtype *)malloc(sizeof(xtype));\
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*zp = z; \
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s = (char *)zp; \
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t = (char *)malloc(sizeof(xtype)); \
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for (i=0; i<sizeof(xtype); i++) { \
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t[sizeof(xtype)-i-1] = s[i]; \
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} \
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r = *(xtype *)t; \
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free(t); \
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free(zp); \
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return r; \
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}
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#if SIZEOF_SHORT == 2
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#define swaps(x) ((((x)&0xFF)<<8) + (((x)>>8)&0xFF))
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#else
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#if SIZEOF_SHORT == 4
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#define swaps(x) ((((x)&0xFF)<<24) \
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+(((x)>>24)&0xFF) \
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+(((x)&0x0000FF00)<<8) \
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+(((x)&0x00FF0000)>>8) )
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#else
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define_swapx(s,short);
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#endif
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#endif
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#if SIZEOF_LONG == 4
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#define swapl(x) ((((x)&0xFF)<<24) \
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+(((x)>>24)&0xFF) \
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+(((x)&0x0000FF00)<<8) \
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+(((x)&0x00FF0000)>>8) )
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#else
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#if SIZEOF_LONG == 8
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#define swapl(x) ((((x)&0x00000000000000FF)<<56) \
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+(((x)&0xFF00000000000000)>>56) \
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+(((x)&0x000000000000FF00)<<40) \
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+(((x)&0x00FF000000000000)>>40) \
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+(((x)&0x0000000000FF0000)<<24) \
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+(((x)&0x0000FF0000000000)>>24) \
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+(((x)&0x00000000FF000000)<<8) \
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+(((x)&0x000000FF00000000)>>8))
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#else
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define_swapx(l,long);
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#endif
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#endif
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#if SIZEOF_FLOAT == 4
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#if SIZEOF_LONG == 4 /* SIZEOF_FLOAT == 4 == SIZEOF_LONG */
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#define swapf(x) swapl(x)
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#define FLOAT_SWAPPER unsigned long
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#else
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#if SIZEOF_SHORT == 4 /* SIZEOF_FLOAT == 4 == SIZEOF_SHORT */
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#define swapf(x) swaps(x)
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#define FLOAT_SWAPPER unsigned short
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#else /* SIZEOF_FLOAT == 4 but undivide by known size of int */
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define_swapx(f,float);
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#endif /* #if SIZEOF_SHORT == 4 */
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#endif /* #if SIZEOF_LONG == 4 */
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#else /* SIZEOF_FLOAT != 4 */
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define_swapx(f,float);
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#endif /* #if SIZEOF_FLOAT == 4 */
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#if SIZEOF_DOUBLE == 8
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#if SIZEOF_LONG == 8 /* SIZEOF_DOUBLE == 8 == SIZEOF_LONG */
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#define swapd(x) swapl(x)
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#define DOUBLE_SWAPPER unsigned long
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#else
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#if SIZEOF_LONG == 4 /* SIZEOF_DOUBLE == 8 && 4 == SIZEOF_LONG */
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static double
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swapd(d)
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const double d;
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{
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double dtmp = d;
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unsigned long utmp[2];
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unsigned long utmp0;
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utmp[0] = 0; utmp[1] = 0;
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memcpy(utmp,&dtmp,sizeof(double));
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utmp0 = utmp[0];
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utmp[0] = swapl(utmp[1]);
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utmp[1] = swapl(utmp0);
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memcpy(&dtmp,utmp,sizeof(double));
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return dtmp;
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}
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#else
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#if SIZEOF_SHORT == 4 /* SIZEOF_DOUBLE == 8 && 4 == SIZEOF_SHORT */
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static double
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swapd(d)
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const double d;
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{
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double dtmp = d;
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unsigned short utmp[2];
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unsigned short utmp0;
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utmp[0] = 0; utmp[1] = 0;
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memcpy(utmp,&dtmp,sizeof(double));
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utmp0 = utmp[0];
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utmp[0] = swaps(utmp[1]);
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utmp[1] = swaps(utmp0);
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memcpy(&dtmp,utmp,sizeof(double));
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return dtmp;
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}
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#else /* SIZEOF_DOUBLE == 8 but undivied by known size of int */
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define_swapx(d, double);
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#endif /* #if SIZEOF_SHORT == 4 */
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#endif /* #if SIZEOF_LONG == 4 */
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#endif /* #if SIZEOF_LONG == 8 */
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#else /* SIZEOF_DOUBLE != 8 */
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define_swapx(d, double);
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#endif /* #if SIZEOF_DPOUBLE == 8 */
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#undef define_swapx
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#ifdef DYNAMIC_ENDIAN
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#ifdef ntohs
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#undef ntohs
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#undef ntohl
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#undef htons
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#undef htonl
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#endif
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static int
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endian()
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{
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static int init = 0;
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static int endian_value;
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char *p;
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if (init) return endian_value;
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init = 1;
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p = (char*)&init;
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return endian_value = p[0]?0:1;
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}
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#define ntohs(x) (endian()?(x):swaps(x))
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#define ntohl(x) (endian()?(x):swapl(x))
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#define ntohf(x) (endian()?(x):swapf(x))
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#define ntohd(x) (endian()?(x):swapd(x))
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#define htons(x) (endian()?(x):swaps(x))
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#define htonl(x) (endian()?(x):swapl(x))
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#define htonf(x) (endian()?(x):swapf(x))
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#define htond(x) (endian()?(x):swapd(x))
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#define htovs(x) (endian()?swaps(x):(x))
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#define htovl(x) (endian()?swapl(x):(x))
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#define htovf(x) (endian()?swapf(x):(x))
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#define htovd(x) (endian()?swapd(x):(x))
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#define vtohs(x) (endian()?swaps(x):(x))
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#define vtohl(x) (endian()?swapl(x):(x))
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#define vtohf(x) (endian()?swapf(x):(x))
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#define vtohd(x) (endian()?swapd(x):(x))
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#else
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#ifdef WORDS_BIGENDIAN
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#ifndef ntohs
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#define ntohs(x) (x)
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#define ntohl(x) (x)
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#define htons(x) (x)
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#define htonl(x) (x)
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#endif
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#define ntohf(x) (x)
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#define ntohd(x) (x)
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#define htonf(x) (x)
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#define htond(x) (x)
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#define htovs(x) swaps(x)
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#define htovl(x) swapl(x)
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#define htovf(x) swapf(x)
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#define htovd(x) swapd(x)
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#define vtohs(x) swaps(x)
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#define vtohl(x) swapl(x)
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#define vtohf(x) swapf(x)
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#define vtohd(x) swapd(x)
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#else /* LITTLE ENDIAN */
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#ifndef ntohs
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#undef ntohs
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#undef ntohl
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#undef htons
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#undef htonl
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#define ntohs(x) swaps(x)
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#define ntohl(x) swapl(x)
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#define htons(x) swaps(x)
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#define htonl(x) swapl(x)
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#endif
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#define ntohf(x) swapf(x)
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#define ntohd(x) swapd(x)
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#define htonf(x) swapf(x)
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#define htond(x) swapd(x)
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#define htovs(x) (x)
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#define htovl(x) (x)
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#define htovf(x) (x)
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#define htovd(x) (x)
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#define vtohs(x) (x)
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#define vtohl(x) (x)
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#define vtohf(x) (x)
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#define vtohd(x) (x)
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#endif
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#endif
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#ifdef FLOAT_SWAPPER
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#define FLOAT_CONVWITH(y) FLOAT_SWAPPER y;
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#define HTONF(x,y) (memcpy(&y,&x,sizeof(float)), \
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y = htonf((FLOAT_SWAPPER)y), \
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memcpy(&x,&y,sizeof(float)), \
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x)
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#define HTOVF(x,y) (memcpy(&y,&x,sizeof(float)), \
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y = htovf((FLOAT_SWAPPER)y), \
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memcpy(&x,&y,sizeof(float)), \
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x)
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#define NTOHF(x,y) (memcpy(&y,&x,sizeof(float)), \
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y = ntohf((FLOAT_SWAPPER)y), \
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memcpy(&x,&y,sizeof(float)), \
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x)
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#define VTOHF(x,y) (memcpy(&y,&x,sizeof(float)), \
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y = vtohf((FLOAT_SWAPPER)y), \
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memcpy(&x,&y,sizeof(float)), \
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x)
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#else
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#define FLOAT_CONVWITH(y)
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#define HTONF(x,y) htonf(x)
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#define HTOVF(x,y) htovf(x)
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#define NTOHF(x,y) ntohf(x)
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#define VTOHF(x,y) vtohf(x)
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#endif
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#ifdef DOUBLE_SWAPPER
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#define DOUBLE_CONVWITH(y) DOUBLE_SWAPPER y;
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#define HTOND(x,y) (memcpy(&y,&x,sizeof(double)), \
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y = htond((DOUBLE_SWAPPER)y), \
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memcpy(&x,&y,sizeof(double)), \
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x)
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#define HTOVD(x,y) (memcpy(&y,&x,sizeof(double)), \
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y = htovd((DOUBLE_SWAPPER)y), \
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memcpy(&x,&y,sizeof(double)), \
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x)
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#define NTOHD(x,y) (memcpy(&y,&x,sizeof(double)), \
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y = ntohd((DOUBLE_SWAPPER)y), \
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memcpy(&x,&y,sizeof(double)), \
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x)
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#define VTOHD(x,y) (memcpy(&y,&x,sizeof(double)), \
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y = vtohd((DOUBLE_SWAPPER)y), \
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memcpy(&x,&y,sizeof(double)), \
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x)
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#else
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#define DOUBLE_CONVWITH(y)
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#define HTOND(x,y) htond(x)
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#define HTOVD(x,y) htovd(x)
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#define NTOHD(x,y) ntohd(x)
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#define VTOHD(x,y) vtohd(x)
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#endif
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static char *toofew = "too few arguments";
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static void encodes _((VALUE,char*,int,int));
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static void qpencode _((VALUE,VALUE,int));
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static int uv_to_utf8 _((char*,unsigned long));
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static unsigned long utf8_to_uv _((char*,int*));
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static void
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pack_add_ptr(str, add)
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VALUE str, add;
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{
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#define STR_NO_ORIG FL_USER3 /* copied from string.c */
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if (!RSTRING(str)->orig) {
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RSTRING(str)->orig = rb_ary_new();
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FL_SET(str, STR_NO_ORIG);
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}
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rb_ary_push(RSTRING(str)->orig, add);
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}
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static VALUE
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pack_pack(ary, fmt)
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VALUE ary, fmt;
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{
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static char *nul10 = "\0\0\0\0\0\0\0\0\0\0";
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static char *spc10 = " ";
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char *p, *pend;
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VALUE res, from;
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char type;
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int items, len, idx;
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char *ptr;
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int plen;
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#ifdef NATINT_PACK
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int natint; /* native integer */
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#endif
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p = str2cstr(fmt, &plen);
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pend = p + plen;
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res = rb_str_new(0, 0);
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items = RARRAY(ary)->len;
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idx = 0;
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#define NEXTFROM (items-- > 0 ? RARRAY(ary)->ptr[idx++] : (rb_raise(rb_eArgError, toofew),0))
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while (p < pend) {
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type = *p++; /* get data type */
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#ifdef NATINT_PACK
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natint = 0;
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#endif
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if (ISSPACE(type)) continue;
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if (*p == '_') {
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char *natstr = "sSiIlL";
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if (strchr(natstr, type)) {
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#ifdef NATINT_PACK
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natint = 1;
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#endif
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p++;
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}
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else {
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rb_raise(rb_eArgError, "'_' allowed only after types %s", natstr);
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}
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}
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if (*p == '*') { /* set data length */
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len = strchr("@Xxu", type) ? 0 : items;
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p++;
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}
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else if (ISDIGIT(*p)) {
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len = strtoul(p, (char**)&p, 10);
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}
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else {
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len = 1;
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}
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switch (type) {
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case 'A': case 'a': case 'Z':
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case 'B': case 'b':
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case 'H': case 'h':
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from = NEXTFROM;
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if (NIL_P(from)) {
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ptr = "";
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plen = 0;
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}
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else {
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ptr = str2cstr(from, &plen);
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}
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if (p[-1] == '*')
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len = plen;
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switch (type) {
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case 'a':
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case 'A':
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case 'Z':
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if (plen >= len)
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rb_str_cat(res, ptr, len);
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else {
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rb_str_cat(res, ptr, plen);
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len -= plen;
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while (len >= 10) {
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rb_str_cat(res, (type == 'A')?spc10:nul10, 10);
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len -= 10;
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}
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rb_str_cat(res, (type == 'A')?spc10:nul10, len);
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}
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break;
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case 'b':
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{
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int byte = 0;
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int i, j = 0;
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if (len > plen) {
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j = (len - plen + 1)/2;
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len = plen;
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}
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for (i=0; i++ < len; ptr++) {
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if (*ptr & 1)
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byte |= 128;
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if (i & 7)
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byte >>= 1;
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else {
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char c = byte & 0xff;
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rb_str_cat(res, &c, 1);
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byte = 0;
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}
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}
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if (len & 7) {
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char c;
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byte >>= 7 - (len & 7);
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c = byte & 0xff;
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rb_str_cat(res, &c, 1);
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}
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len = RSTRING(res)->len;
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rb_str_resize(res, len+j);
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MEMZERO(RSTRING(res)->ptr+len, char, j);
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}
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break;
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case 'B':
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{
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int byte = 0;
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int i, j = 0;
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if (len > plen) {
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j = (len - plen + 1)/2;
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len = plen;
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}
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for (i=0; i++ < len; ptr++) {
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byte |= *ptr & 1;
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if (i & 7)
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byte <<= 1;
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else {
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char c = byte & 0xff;
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rb_str_cat(res, &c, 1);
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byte = 0;
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}
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}
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if (len & 7) {
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char c;
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byte <<= 7 - (len & 7);
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c = byte & 0xff;
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rb_str_cat(res, &c, 1);
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}
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len = RSTRING(res)->len;
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rb_str_resize(res, len+j);
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MEMZERO(RSTRING(res)->ptr+len, char, j);
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}
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break;
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case 'h':
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{
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int byte = 0;
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int i, j = 0;
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if (len > plen) {
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j = (len - plen + 1)/2;
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len = plen;
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}
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for (i=0; i++ < len; ptr++) {
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if (ISALPHA(*ptr))
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byte |= (((*ptr & 15) + 9) & 15) << 4;
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else
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byte |= (*ptr & 15) << 4;
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if (i & 1)
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byte >>= 4;
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else {
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char c = byte & 0xff;
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rb_str_cat(res, &c, 1);
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byte = 0;
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}
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}
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if (len & 1) {
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char c = byte & 0xff;
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rb_str_cat(res, &c, 1);
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}
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len = RSTRING(res)->len;
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rb_str_resize(res, len+j);
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MEMZERO(RSTRING(res)->ptr+len, char, j);
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}
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break;
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case 'H':
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{
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int byte = 0;
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int i, j = 0;
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if (len > plen) {
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j = (len - plen + 1)/2;
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len = plen;
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}
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for (i=0; i++ < len; ptr++) {
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if (ISALPHA(*ptr))
|
|
byte |= ((*ptr & 15) + 9) & 15;
|
|
else
|
|
byte |= *ptr & 15;
|
|
if (i & 1)
|
|
byte <<= 4;
|
|
else {
|
|
char c = byte & 0xff;
|
|
rb_str_cat(res, &c, 1);
|
|
byte = 0;
|
|
}
|
|
}
|
|
if (len & 1) {
|
|
char c = byte & 0xff;
|
|
rb_str_cat(res, &c, 1);
|
|
}
|
|
len = RSTRING(res)->len;
|
|
rb_str_resize(res, len+j);
|
|
MEMZERO(RSTRING(res)->ptr+len, char, 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_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_cat(res, (char*)&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_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 = NUM2ULONG(from);
|
|
}
|
|
rb_str_cat(res, (char*)&l, NATINT_LEN(long,4));
|
|
}
|
|
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_cat(res, (char*)&s, NATINT_LEN(short,2));
|
|
}
|
|
break;
|
|
|
|
case 'N':
|
|
while (len-- > 0) {
|
|
unsigned long l;
|
|
|
|
from = NEXTFROM;
|
|
if (NIL_P(from)) l = 0;
|
|
else {
|
|
l = NUM2ULONG(from);
|
|
}
|
|
l = htonl(l);
|
|
rb_str_cat(res, (char*)&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_cat(res, (char*)&s, NATINT_LEN(short,2));
|
|
}
|
|
break;
|
|
|
|
case 'V':
|
|
while (len-- > 0) {
|
|
unsigned long l;
|
|
|
|
from = NEXTFROM;
|
|
if (NIL_P(from)) l = 0;
|
|
else {
|
|
l = NUM2ULONG(from);
|
|
}
|
|
l = htovl(l);
|
|
rb_str_cat(res, (char*)&l, NATINT_LEN(long,4));
|
|
}
|
|
break;
|
|
|
|
case 'f':
|
|
case 'F':
|
|
while (len-- > 0) {
|
|
float f;
|
|
|
|
from = NEXTFROM;
|
|
switch (TYPE(from)) {
|
|
case T_FLOAT:
|
|
f = RFLOAT(from)->value;
|
|
break;
|
|
case T_STRING:
|
|
f = strtod(RSTRING(from)->ptr, 0);
|
|
default:
|
|
f = (float)NUM2INT(from);
|
|
break;
|
|
}
|
|
rb_str_cat(res, (char*)&f, sizeof(float));
|
|
}
|
|
break;
|
|
|
|
case 'e':
|
|
while (len-- > 0) {
|
|
float f;
|
|
FLOAT_CONVWITH(ftmp);
|
|
|
|
from = NEXTFROM;
|
|
switch (TYPE(from)) {
|
|
case T_FLOAT:
|
|
f = RFLOAT(from)->value;
|
|
break;
|
|
case T_STRING:
|
|
f = strtod(RSTRING(from)->ptr, 0);
|
|
default:
|
|
f = (float)NUM2INT(from);
|
|
break;
|
|
}
|
|
f = HTOVF(f,ftmp);
|
|
rb_str_cat(res, (char*)&f, sizeof(float));
|
|
}
|
|
break;
|
|
|
|
case 'E':
|
|
while (len-- > 0) {
|
|
double d;
|
|
DOUBLE_CONVWITH(dtmp);
|
|
|
|
from = NEXTFROM;
|
|
switch (TYPE(from)) {
|
|
case T_FLOAT:
|
|
d = RFLOAT(from)->value;
|
|
break;
|
|
case T_STRING:
|
|
d = strtod(RSTRING(from)->ptr, 0);
|
|
default:
|
|
d = (double)NUM2INT(from);
|
|
break;
|
|
}
|
|
d = HTOVD(d,dtmp);
|
|
rb_str_cat(res, (char*)&d, sizeof(double));
|
|
}
|
|
break;
|
|
|
|
case 'd':
|
|
case 'D':
|
|
while (len-- > 0) {
|
|
double d;
|
|
|
|
from = NEXTFROM;
|
|
switch (TYPE(from)) {
|
|
case T_FLOAT:
|
|
d = RFLOAT(from)->value;
|
|
break;
|
|
case T_STRING:
|
|
d = strtod(RSTRING(from)->ptr, 0);
|
|
default:
|
|
d = (double)NUM2INT(from);
|
|
break;
|
|
}
|
|
rb_str_cat(res, (char*)&d, sizeof(double));
|
|
}
|
|
break;
|
|
|
|
case 'g':
|
|
while (len-- > 0) {
|
|
float f;
|
|
FLOAT_CONVWITH(ftmp);
|
|
|
|
from = NEXTFROM;
|
|
switch (TYPE(from)) {
|
|
case T_FLOAT:
|
|
f = RFLOAT(from)->value;
|
|
break;
|
|
case T_STRING:
|
|
f = strtod(RSTRING(from)->ptr, 0);
|
|
default:
|
|
f = (float)NUM2INT(from);
|
|
break;
|
|
}
|
|
f = HTONF(f,ftmp);
|
|
rb_str_cat(res, (char*)&f, sizeof(float));
|
|
}
|
|
break;
|
|
|
|
case 'G':
|
|
while (len-- > 0) {
|
|
double d;
|
|
DOUBLE_CONVWITH(dtmp);
|
|
|
|
from = NEXTFROM;
|
|
switch (TYPE(from)) {
|
|
case T_FLOAT:
|
|
d = RFLOAT(from)->value;
|
|
break;
|
|
case T_STRING:
|
|
d = strtod(RSTRING(from)->ptr, 0);
|
|
default:
|
|
d = (double)NUM2INT(from);
|
|
break;
|
|
}
|
|
d = HTOND(d,dtmp);
|
|
rb_str_cat(res, (char*)&d, sizeof(double));
|
|
}
|
|
break;
|
|
|
|
case 'x':
|
|
grow:
|
|
while (len >= 10) {
|
|
rb_str_cat(res, nul10, 10);
|
|
len -= 10;
|
|
}
|
|
rb_str_cat(res, nul10, len);
|
|
break;
|
|
|
|
case 'X':
|
|
shrink:
|
|
if (RSTRING(res)->len < len)
|
|
rb_raise(rb_eArgError, "X outside of string");
|
|
RSTRING(res)->len -= len;
|
|
RSTRING(res)->ptr[RSTRING(res)->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, "% may only be used in unpack");
|
|
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_cat(res, (char*)&buf, le);
|
|
}
|
|
break;
|
|
|
|
case 'u':
|
|
case 'm':
|
|
ptr = str2cstr(NEXTFROM, &plen);
|
|
|
|
if (len <= 1)
|
|
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':
|
|
len = 1;
|
|
/* FALL THROUGH */
|
|
case 'p':
|
|
while (len-- > 0) {
|
|
char *t;
|
|
from = NEXTFROM;
|
|
if (NIL_P(from)) t = "";
|
|
else {
|
|
t = STR2CSTR(from);
|
|
pack_add_ptr(res, from);
|
|
}
|
|
rb_str_cat(res, (char*)&t, sizeof(char*));
|
|
}
|
|
break;
|
|
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
|
|
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_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_cat(str, buff, i);
|
|
i = 0;
|
|
}
|
|
s++;
|
|
}
|
|
if (n > 0) {
|
|
buff[i++] = '=';
|
|
buff[i++] = '\n';
|
|
}
|
|
if (i > 0) {
|
|
rb_str_cat(str, buff, i);
|
|
}
|
|
}
|
|
|
|
#if defined(__GNUC__) && __GNUC__ >= 2 && !defined(RUBY_NO_INLINE)
|
|
static __inline__ int
|
|
#else
|
|
static int
|
|
#endif
|
|
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;
|
|
}
|
|
}
|
|
|
|
#ifdef NATINT_PACK
|
|
#define PACK_LENGTH_ADJUST(type,sz) do { \
|
|
int t__len = NATINT_LEN(type,(sz)); \
|
|
tmp = 0; \
|
|
if (len > (send-s)/t__len) { \
|
|
if (!star) { \
|
|
tmp = len-(send-s)/t__len; \
|
|
} \
|
|
len = (send-s)/t__len; \
|
|
} \
|
|
} while (0)
|
|
#else
|
|
#define PACK_LENGTH_ADJUST(type,sz) do { \
|
|
tmp = 0; \
|
|
if (len > (send-s)/sizeof(type)) { \
|
|
if (!star) { \
|
|
tmp = len - (send-s)/sizeof(type); \
|
|
} \
|
|
len = (send-s)/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
|
|
|
|
s = str2cstr(str, &len);
|
|
send = s + len;
|
|
p = str2cstr(fmt, &len);
|
|
pend = p + len;
|
|
|
|
ary = rb_ary_new();
|
|
while (p < pend) {
|
|
#ifdef NATINT_PACK
|
|
natint = 0;
|
|
#endif
|
|
star = 0;
|
|
type = *p++;
|
|
if (*p == '_') {
|
|
char *natstr = "sSiIlL";
|
|
|
|
if (strchr(natstr, type)) {
|
|
#ifdef NATINT_PACK
|
|
natint = 1;
|
|
#endif
|
|
p++;
|
|
}
|
|
else {
|
|
rb_raise(rb_eArgError, "'_' allowed only after types %s", 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(yet)");
|
|
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;
|
|
memcpy(&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;
|
|
memcpy(&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;
|
|
memcpy(&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;
|
|
memcpy(&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 'n':
|
|
PACK_LENGTH_ADJUST(unsigned short,2);
|
|
while (len-- > 0) {
|
|
unsigned short tmp;
|
|
memcpy(&tmp, s, NATINT_LEN(unsigned short,2));
|
|
s += NATINT_LEN(unsigned short,2);
|
|
tmp = ntohs(tmp);
|
|
rb_ary_push(ary, rb_uint2inum(tmp));
|
|
}
|
|
PACK_ITEM_ADJUST();
|
|
break;
|
|
|
|
case 'N':
|
|
PACK_LENGTH_ADJUST(unsigned long,4);
|
|
while (len-- > 0) {
|
|
unsigned long tmp;
|
|
memcpy(&tmp, s, NATINT_LEN(unsigned long,4));
|
|
s += NATINT_LEN(unsigned long,4);
|
|
tmp = ntohl(tmp);
|
|
rb_ary_push(ary, rb_uint2inum(tmp));
|
|
}
|
|
PACK_ITEM_ADJUST();
|
|
break;
|
|
|
|
case 'v':
|
|
PACK_LENGTH_ADJUST(unsigned short,2);
|
|
while (len-- > 0) {
|
|
unsigned short tmp;
|
|
memcpy(&tmp, s, NATINT_LEN(unsigned short,2));
|
|
s += NATINT_LEN(unsigned short,2);
|
|
tmp = vtohs(tmp);
|
|
rb_ary_push(ary, rb_uint2inum(tmp));
|
|
}
|
|
PACK_ITEM_ADJUST();
|
|
break;
|
|
|
|
case 'V':
|
|
PACK_LENGTH_ADJUST(unsigned long,4);
|
|
while (len-- > 0) {
|
|
unsigned long tmp;
|
|
memcpy(&tmp, s, NATINT_LEN(long,4));
|
|
s += NATINT_LEN(long,4);
|
|
tmp = vtohl(tmp);
|
|
rb_ary_push(ary, rb_uint2inum(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;
|
|
unsigned long l;
|
|
|
|
l = utf8_to_uv(s, &alen);
|
|
s += 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 str = rb_str_new(0, 0);
|
|
memcpy(&t, s, sizeof(char *));
|
|
s += sizeof(char *);
|
|
if (t)
|
|
rb_str_cat(str, t, len);
|
|
rb_ary_push(ary, str);
|
|
}
|
|
break;
|
|
|
|
case 'p':
|
|
if (len > (send - s) / sizeof(char *))
|
|
len = (send - s) / sizeof(char *);
|
|
while (len-- > 0) {
|
|
if (send - s < sizeof(char *))
|
|
break;
|
|
else {
|
|
char *t;
|
|
VALUE str = rb_str_new(0, 0);
|
|
memcpy(&t, s, sizeof(char *));
|
|
s += sizeof(char *);
|
|
if (t)
|
|
rb_str_cat(str, t, strlen(t));
|
|
rb_ary_push(ary, str);
|
|
}
|
|
}
|
|
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;
|
|
*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);
|
|
}
|