diff options
Diffstat (limited to 'ruby_2_2/enc/trans/utf8_mac.trans')
| -rw-r--r-- | ruby_2_2/enc/trans/utf8_mac.trans | 256 |
1 files changed, 256 insertions, 0 deletions
diff --git a/ruby_2_2/enc/trans/utf8_mac.trans b/ruby_2_2/enc/trans/utf8_mac.trans new file mode 100644 index 0000000000..bcaa785ead --- /dev/null +++ b/ruby_2_2/enc/trans/utf8_mac.trans @@ -0,0 +1,256 @@ +#include "transcode_data.h" + +<% + require 'utf8_mac-tbl' + + def charlen(v) + v.gsub(/[0-7].|[c-d].{3}|e.{5}/, '.').size + end + + map = {} + MAC_DECOMPOSE_TBL.each do |c, d| + v = map[c] + next if v && charlen(v) > charlen(d) + map[c] = d + end + transcode_tblgen("UTF-8", "UTF8-MAC", + map.to_a + [ + ["{00-7F}", :nomap], + ["{c2-df}{80-bf}", :nomap0], + ["e0{a0-bf}{80-bf}", :nomap0], + ["{e1-ec}{80-bf}{80-bf}", :nomap0], + ["ed{80-9f}{80-bf}", :nomap0], + ["{ee-ef}{80-bf}{80-bf}", :nomap0], + ["f0{90-bf}{80-bf}{80-bf}", :nomap0], + ["{f1-f3}{80-bf}{80-bf}{80-bf}", :nomap0], + ]) + + map = {} + map["{00-7f}"] = :func_so + map["{c2-df}{80-bf}"] = :func_so + map["e0{a0-bf}{80-bf}"] = :func_so + map["{e1-ec}{80-bf}{80-bf}"] = :func_so + map["ed{80-9f}{80-bf}"] = :func_so + map["{ee-ef}{80-bf}{80-bf}"] = :func_so + map["f0{90-bf}{80-bf}{80-bf}"] = :func_so + map["{f1-f3}{80-bf}{80-bf}{80-bf}"] = :func_so + map["f4{80-8f}{80-bf}{80-bf}"] = :func_so + transcode_generate_node(ActionMap.parse(map), "from_UTF8_MAC") + + # http://www.unicode.org/Public/UNIDATA/CompositionExclusions.txt + composition_exclusions = [ + 0x0958,0x0959,0x095A,0x095B,0x095C,0x095D,0x095E,0x095F, + 0x09DC,0x09DD,0x09DF,0x0A33,0x0A36,0x0A59,0x0A5A,0x0A5B, + 0x0A5E,0x0B5C,0x0B5D,0x0F43,0x0F4D,0x0F52,0x0F57,0x0F5C, + 0x0F69,0x0F76,0x0F78,0x0F93,0x0F9D,0x0FA2,0x0FA7,0x0FAC, + 0x0FB9,0xFB1D,0xFB1F,0xFB2A,0xFB2B,0xFB2C,0xFB2D,0xFB2E, + 0xFB2F,0xFB30,0xFB31,0xFB32,0xFB33,0xFB34,0xFB35,0xFB36, + 0xFB38,0xFB39,0xFB3A,0xFB3B,0xFB3C,0xFB3E,0xFB40,0xFB41, + 0xFB43,0xFB44,0xFB46,0xFB47,0xFB48,0xFB49,0xFB4A,0xFB4B, + 0xFB4C,0xFB4D,0xFB4E,0x2ADC, +# 0x1D15E,0x1D15F,0x1D160,0x1D161,0x1D162,0x1D163,0x1D164, +# 0x1D1BB,0x1D1BC,0x1D1BD,0x1D1BE,0x1D1BF,0x1D1C0, + 0x0340..0x0341,0x0343,0x0374,0x037E,0x0387, + 0x1F71,0x1F73,0x1F75,0x1F77,0x1F79,0x1F7B,0x1F7D,0x1FBB, + 0x1FBE,0x1FC9,0x1FCB,0x1FD3,0x1FDB,0x1FE3,0x1FEB,0x1FEE..0x1FEF, + 0x1FF9,0x1FFB,0x1FFD,0x2000..0x2001,0x2126,0x212A..0x212B,0x2329,0x232A, + 0xF900..0xFA0D,0xFA10,0xFA12,0xFA15..0xFA1E,0xFA20,0xFA22,0xFA25..0xFA26, + 0xFA2A..0xFA6D,0xFA70..0xFAD9, +# 0x2F800..0x2FA1D, + 0x0344,0x0F73,0x0F75,0x0F81 + ] + extbl = {} + composition_exclusions.each do |x| + case x + when Range + x.each do |n| + extbl[[n].pack("U").unpack("H*")[0]] = true + end + when Integer + extbl[[x].pack("U").unpack("H*")[0]] = true + end + end + ary = MAC_DECOMPOSE_TBL.reject{|k,v|charlen(v)!=2||extbl[k]}.map{|k,v|[v,k]} + transcode_generate_node(ActionMap.parse(ary), "from_utf8_mac_nfc2") +%> + +<%= transcode_generated_code %> + +#define BYTE_ADDR(index) (<%= OUTPUT_PREFIX %>byte_array + (index)) +#define WORD_ADDR(index) (<%= OUTPUT_PREFIX %>word_array + INFO2WORDINDEX(index)) +#define BL_BASE BYTE_ADDR(BYTE_LOOKUP_BASE(WORD_ADDR(next_info))) +#define BL_INFO WORD_ADDR(BYTE_LOOKUP_INFO(WORD_ADDR(next_info))) +#define BL_MIN_BYTE (BL_BASE[0]) +#define BL_MAX_BYTE (BL_BASE[1]) +#define BL_OFFSET(byte) (BL_BASE[2+(byte)-BL_MIN_BYTE]) +#define BL_ACTION(byte) (BL_INFO[BL_OFFSET((byte))]) + +#define STATUS_BUF_SIZE 16 +struct from_utf8_mac_status { + unsigned char buf[STATUS_BUF_SIZE]; + int beg; + int end; +}; +#define buf_empty_p(p) ((p)->beg == (p)->end) +#define buf_bytesize(p) (((p)->end - (p)->beg + STATUS_BUF_SIZE) % STATUS_BUF_SIZE) +#define utf8_trailbyte(c) (((c) & 0xC0) == 0x80) + +static void +buf_push(struct from_utf8_mac_status *sp, const unsigned char *p, ssize_t l) +{ + const unsigned char *pend = p + l; + while (p < pend) { + /* if (sp->beg == sp->end) */ + sp->buf[sp->end++] = *p++; + sp->end %= STATUS_BUF_SIZE; + } +} + +static unsigned char +buf_shift(struct from_utf8_mac_status *sp) +{ + /* if (sp->beg == sp->end) */ + unsigned char c = sp->buf[sp->beg++]; + sp->beg %= STATUS_BUF_SIZE; + return c; +} + +static void +buf_clear(struct from_utf8_mac_status *sp) +{ + sp->beg = sp->end = 0; +} + +static unsigned char +buf_at(struct from_utf8_mac_status *sp, int pos) +{ + pos += sp->beg; + pos %= STATUS_BUF_SIZE; + return sp->buf[pos]; +} + +static size_t +buf_output_char(struct from_utf8_mac_status *sp, unsigned char *o) +{ + size_t n = 0; + while (!buf_empty_p(sp)) { + o[n++] = buf_shift(sp); + if (!utf8_trailbyte(sp->buf[sp->beg])) break; + } + return n; +} + +static size_t +buf_output_all(struct from_utf8_mac_status *sp, unsigned char *o) +{ + size_t n = 0; + while (!buf_empty_p(sp)) { + o[n++] = buf_shift(sp); + } + return n; +} + +static VALUE +get_info(VALUE next_info, struct from_utf8_mac_status *sp) { + int pos = 0; + while (pos < buf_bytesize(sp)) { + unsigned char next_byte = buf_at(sp, pos++); + if (next_byte < BL_MIN_BYTE || BL_MAX_BYTE < next_byte) + next_info = INVALID; + else { + next_info = (VALUE)BL_ACTION(next_byte); + } + if ((next_info & 3) == 0) continue; + break; + } + return next_info; +} + +static size_t +buf_apply(struct from_utf8_mac_status *sp, unsigned char *o) +{ + size_t n = 0; + VALUE next_info; + unsigned char buf[3]; + if (buf_bytesize(sp) < 3 || (buf_bytesize(sp) == 3 && buf_at(sp, 0) >= 0xE0)) { + /* char length is less than 2 */ + return 0; + } + next_info = get_info(from_utf8_mac_nfc2, sp); + switch (next_info & 0x1F) { + case THREEbt: + case TWObt: + buf[n++] = getBT1(next_info); + buf[n++] = getBT2(next_info); + if (THREEbt == (next_info & 0x1F)) + buf[n++] = getBT3(next_info); + buf_clear(sp); + buf_push(sp, buf, n); + return 0; + break; + default: + return buf_output_char(sp, o); + break; + } +} + +static int +from_utf8_mac_init(void *statep) +{ + struct from_utf8_mac_status *sp = statep; + buf_clear(sp); + return 0; +} + +static ssize_t +from_utf8_mac_finish(void *statep, + unsigned char *o, size_t osize) +{ + struct from_utf8_mac_status *sp = statep; + return buf_output_all(sp, o); +} + +static ssize_t +fun_so_from_utf8_mac(void *statep, + const unsigned char *s, size_t l, + unsigned char *o, size_t osize) +{ + struct from_utf8_mac_status *sp = statep; + ssize_t n = 0; + + switch (l) { + case 1: + n = from_utf8_mac_finish(sp, o, osize); + break; + case 4: + n = from_utf8_mac_finish(sp, o, osize); + o[n++] = *s++; + o[n++] = *s++; + o[n++] = *s++; + o[n++] = *s++; + return n; + } + + buf_push(sp, s, l); + n += buf_apply(sp, o); + return n; +} + +static const rb_transcoder +rb_from_UTF8_MAC = { + "UTF8-MAC", "UTF-8", from_UTF8_MAC, + TRANSCODE_TABLE_INFO, + 1, /* input_unit_length */ + 4, /* max_input */ + 10, /* max_output */ + asciicompat_encoder, /* asciicompat_type */ + sizeof(struct from_utf8_mac_status), from_utf8_mac_init, from_utf8_mac_init, + NULL, NULL, NULL, fun_so_from_utf8_mac, + from_utf8_mac_finish +}; + +TRANS_INIT(utf8_mac) +{ +<%= transcode_register_code %> + rb_register_transcoder(&rb_from_UTF8_MAC); +} |