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00012 #include "ruby/ruby.h"
00013
00014 #ifndef RUBY_TRANSCODE_DATA_H
00015 #define RUBY_TRANSCODE_DATA_H 1
00016
00017 #define WORDINDEX_SHIFT_BITS 2
00018 #define WORDINDEX2INFO(widx) ((widx) << WORDINDEX_SHIFT_BITS)
00019 #define INFO2WORDINDEX(info) ((info) >> WORDINDEX_SHIFT_BITS)
00020 #define BYTE_LOOKUP_BASE(bl) ((bl)[0])
00021 #define BYTE_LOOKUP_INFO(bl) ((bl)[1])
00022
00023 #define PType (unsigned int)
00024
00025 #define NOMAP (PType 0x01)
00026 #define ONEbt (0x02)
00027 #define TWObt (0x03)
00028 #define THREEbt (0x05)
00029 #define FOURbt (0x06)
00030 #define INVALID (PType 0x07)
00031 #define UNDEF (PType 0x09)
00032 #define ZERObt (PType 0x0A)
00033 #define FUNii (PType 0x0B)
00034 #define FUNsi (PType 0x0D)
00035 #define FUNio (PType 0x0E)
00036 #define FUNso (PType 0x0F)
00037 #define STR1 (PType 0x11)
00038 #define GB4bt (PType 0x12)
00039 #define FUNsio (PType 0x13)
00040
00041 #define STR1_LENGTH(byte_addr) (unsigned int)(*(byte_addr) + 4)
00042 #define STR1_BYTEINDEX(w) ((w) >> 6)
00043 #define makeSTR1(bi) (((bi) << 6) | STR1)
00044 #define makeSTR1LEN(len) ((len)-4)
00045
00046 #define o1(b1) (PType((((unsigned char)(b1))<<8)|ONEbt))
00047 #define o2(b1,b2) (PType((((unsigned char)(b1))<<8)|(((unsigned char)(b2))<<16)|TWObt))
00048 #define o3(b1,b2,b3) (PType(((((unsigned char)(b1))<<8)|(((unsigned char)(b2))<<16)|(((unsigned int)(unsigned char)(b3))<<24)|THREEbt)&0xffffffffU))
00049 #define o4(b0,b1,b2,b3) (PType(((((unsigned char)(b1))<<8)|(((unsigned char)(b2))<<16)|(((unsigned char)(b3))<<24)|((((unsigned char)(b0))&0x07)<<5)|FOURbt)&0xffffffffU))
00050 #define g4(b0,b1,b2,b3) (PType(((((unsigned char)(b0))<<8)|(((unsigned char)(b2))<<16)|((((unsigned char)(b1))&0x0f)<<24)|((((unsigned int)(unsigned char)(b3))&0x0f)<<28)|GB4bt)&0xffffffffU))
00051 #define funsio(diff) (PType((((unsigned int)(diff))<<8)|FUNsio))
00052
00053 #define getBT1(a) ((unsigned char)((a)>> 8))
00054 #define getBT2(a) ((unsigned char)((a)>>16))
00055 #define getBT3(a) ((unsigned char)((a)>>24))
00056 #define getBT0(a) (((unsigned char)((a)>> 5)&0x07)|0xF0)
00057
00058 #define getGB4bt0(a) ((unsigned char)((a)>> 8))
00059 #define getGB4bt1(a) ((unsigned char)((a)>>24)&0x0F|0x30)
00060 #define getGB4bt2(a) ((unsigned char)((a)>>16))
00061 #define getGB4bt3(a) ((unsigned char)((a)>>28)&0x0F|0x30)
00062
00063 #define o2FUNii(b1,b2) (PType((((unsigned char)(b1))<<8)|(((unsigned char)(b2))<<16)|FUNii))
00064
00065
00066 #define ONETRAIL
00067 #define TWOTRAIL
00068 #define THREETRAIL
00069
00070 typedef enum {
00071 asciicompat_converter,
00072 asciicompat_decoder,
00073 asciicompat_encoder
00074
00075 } rb_transcoder_asciicompat_type_t;
00076
00077 typedef struct rb_transcoder rb_transcoder;
00078
00079
00080 struct rb_transcoder {
00081 const char *src_encoding;
00082 const char *dst_encoding;
00083 unsigned int conv_tree_start;
00084 const unsigned char *byte_array;
00085 unsigned int byte_array_length;
00086 const unsigned int *word_array;
00087 unsigned int word_array_length;
00088 int word_size;
00089 int input_unit_length;
00090 int max_input;
00091 int max_output;
00092 rb_transcoder_asciicompat_type_t asciicompat_type;
00093 size_t state_size;
00094 int (*state_init_func)(void*);
00095 int (*state_fini_func)(void*);
00096 VALUE (*func_ii)(void*, VALUE);
00097 VALUE (*func_si)(void*, const unsigned char*, size_t);
00098 ssize_t (*func_io)(void*, VALUE, const unsigned char*, size_t);
00099 ssize_t (*func_so)(void*, const unsigned char*, size_t, unsigned char*, size_t);
00100 ssize_t (*finish_func)(void*, unsigned char*, size_t);
00101 ssize_t (*resetsize_func)(void*);
00102 ssize_t (*resetstate_func)(void*, unsigned char*, size_t);
00103 ssize_t (*func_sio)(void*, const unsigned char*, size_t, VALUE, unsigned char*, size_t);
00104 };
00105
00106 void rb_declare_transcoder(const char *enc1, const char *enc2, const char *lib);
00107 void rb_register_transcoder(const rb_transcoder *);
00108
00109 #endif
00110