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86 lines
2.5 KiB
Text
86 lines
2.5 KiB
Text
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#include "transcode_data.h"
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<%
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map = {}
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map["{00-7f}"] = :nomap
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map["{c2-df}{80-bf}"] = :nomap
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map["e0{a0-bf}{80-bf}"] = :nomap
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map["{e1-ec}{80-bf}{80-bf}"] = :nomap
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map["ed{80-9f}{80-bf}"] = :nomap
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map["{ee-ef}{80-bf}{80-bf}"] = :nomap
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map["ed{a0-af}{80-bf}ed{b0-bf}{80-bf}"] = :func_so # surrogate pairs
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transcode_generate_node(ActionMap.parse(map), "from_CESU_8")
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map = {}
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map["{00-7f}"] = :nomap
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map["{c2-df}{80-bf}"] = :nomap
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map["e0{a0-bf}{80-bf}"] = :nomap
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map["{e1-ec}{80-bf}{80-bf}"] = :nomap
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map["ed{80-9f}{80-bf}"] = :nomap
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map["{ee-ef}{80-bf}{80-bf}"] = :nomap
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map["f0{90-bf}{80-bf}{80-bf}"] = :func_so # planes 1-3
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map["{f1-f3}{80-bf}{80-bf}{80-bf}"] = :func_so # planes 4-15
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map["f4{80-8f}{80-bf}{80-bf}"] = :func_so # plane 16
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transcode_generate_node(ActionMap.parse(map), "to_CESU_8")
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%>
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<%= transcode_generated_code %>
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static ssize_t
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fun_so_from_cesu_8(void *statep, const unsigned char *s, size_t l, unsigned char *o, size_t osize)
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{
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unsigned int scalar = ( ((s[1]&0x0F)<<16) | ((s[2]&0x3F)<<10)
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| ((s[4]&0x0F)<< 6) | (s[5]&0x3F)
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) + 0x10000;
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o[0] = 0xF0 | (scalar>>18);
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o[1] = 0x80 | ((scalar>>12)&0x3F);
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o[2] = 0x80 | ((scalar>> 6)&0x3F);
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o[3] = 0x80 | ( scalar &0x3F);
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return 4;
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}
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static ssize_t
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fun_so_to_cesu_8(void *statep, const unsigned char *s, size_t l, unsigned char *o, size_t osize)
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{
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unsigned int scalar = ((s[0]&0x07)<<18) | ((s[1]&0x3F)<<12)
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| ((s[2]&0x3F)<< 6) | (s[3]&0x3F);
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scalar -= 0x10000;
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o[0] = 0xED;
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o[1] = 0xA0 | (scalar>>16);
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o[2] = 0x80 | ((scalar>>10)&0x3F);
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o[3] = 0xED;
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o[4] = 0xB0 | ((scalar>> 6)&0x0F);
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o[5] = 0x80 | (scalar &0x3F);
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return 6;
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}
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static const rb_transcoder
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rb_from_CESU_8 = {
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"CESU-8", "UTF-8", from_CESU_8,
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TRANSCODE_TABLE_INFO,
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1, /* input_unit_length */
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6, /* max_input */
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4, /* max_output */
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asciicompat_decoder, /* asciicompat_type */
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0, NULL, NULL, /* state_size, state_init, state_fini */
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NULL, NULL, NULL, fun_so_from_cesu_8
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};
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static const rb_transcoder
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rb_to_CESU_8 = {
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"UTF-8", "CESU-8", to_CESU_8,
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TRANSCODE_TABLE_INFO,
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1, /* input_unit_length */
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4, /* max_input */
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6, /* max_output */
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asciicompat_encoder, /* asciicompat_type */
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0, NULL, NULL, /* state_size, state_init, state_fini */
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NULL, NULL, NULL, fun_so_to_cesu_8
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};
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TRANS_INIT(cesu_8)
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{
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rb_register_transcoder(&rb_from_CESU_8);
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rb_register_transcoder(&rb_to_CESU_8);
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}
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