Adding upstream version 0.5.1
This commit is contained in:
Tatsuya Kinoshita
243
libwc/viet.c
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243
libwc/viet.c
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@@ -0,0 +1,243 @@
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#include "wc.h"
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#include "viet.h"
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#include "wtf.h"
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#include "search.h"
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#ifdef USE_UNICODE
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#include "ucs.h"
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#endif
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#include "map/tcvn57123_tcvn5712.map"
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wc_uint8 wc_c0_tcvn57122_map[ 0x20 ] = {
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0, 1, 1, 0, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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0, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0,
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};
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wc_uint8 wc_c0_viscii112_map[ 0x20 ] = {
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0, 0, 1, 0, 0, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1, 0,
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};
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wc_uint8 wc_c0_vps2_map[ 0x20 ] = {
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0, 0, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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1, 1, 1, 1, 1, 1, 0, 0, 0, 1, 0, 0, 1, 1, 0, 0,
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};
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static wc_uint8 tcvn5712_precompose_map[ 0x100 ] = {
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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/* A E I O */
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0, 1, 0, 0, 0, 1, 0, 0, 0, 1, 0, 0, 0, 0, 0, 1,
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/* U Y */
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0, 0, 0, 0, 0, 1, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0,
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/* a e i o */
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0, 1, 0, 0, 0, 1, 0, 0, 0, 1, 0, 0, 0, 0, 0, 1,
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/* u y */
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0, 0, 0, 0, 0, 1, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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/* A( A^ E^ O^ O+ U+ a( a^ e^ o^ o+ u+ */
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0, 1, 1, 1, 1, 1, 1, 0, 1, 1, 1, 1, 1, 0, 0, 0,
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/* ` ? ~ ' . */
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2, 2, 2, 2, 2, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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};
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static wc_uint8 cp1258_precompose_map[ 0x100 ] = {
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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/* A E I O */
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0, 1, 0, 0, 0, 1, 0, 0, 0, 1, 0, 0, 0, 0, 0, 1,
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/* U Y */
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0, 0, 0, 0, 0, 1, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0,
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/* a e i o */
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0, 1, 0, 0, 0, 1, 0, 0, 0, 1, 0, 0, 0, 0, 0, 1,
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/* u y */
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0, 0, 0, 0, 0, 1, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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/* A^ A( E^ ` */
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0, 0, 1, 1, 0, 0, 0, 0, 0, 0, 1, 0, 2, 0, 0, 0,
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/* ? O^ O+ U+ ~ */
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0, 0, 2, 0, 1, 1, 0, 0, 0, 0, 0, 0, 0, 1, 2, 0,
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/* a^ a( e^ ' */
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0, 0, 1, 1, 0, 0, 0, 0, 0, 0, 1, 0, 2, 0, 0, 0,
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/* . o^ o+ u+ */
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0, 0, 2, 0, 1, 1, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0,
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};
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wc_uint32
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wc_tcvn5712_precompose(wc_uchar c1, wc_uchar c2)
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{
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if (tcvn5712_precompose_map[c1] == 1 && tcvn5712_precompose_map[c2] == 2)
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return ((wc_uint32)c1 << 8) | c2;
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else
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return 0;
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}
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wc_wchar_t
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wc_tcvn57123_to_tcvn5712(wc_wchar_t cc)
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{
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wc_map *map;
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map = wc_map_search((wc_uint16)(cc.code & 0x7f7f),
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tcvn57123_tcvn5712_map, N_tcvn57123_tcvn5712_map);
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if (map) {
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cc.ccs = (map->code2 < 0x20) ? WC_CCS_TCVN_5712_2 : WC_CCS_TCVN_5712_1;
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cc.code = map->code2 | 0x80;
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} else {
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cc.ccs = WC_CCS_UNKNOWN;
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}
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return cc;
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}
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wc_uint32
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wc_cp1258_precompose(wc_uchar c1, wc_uchar c2)
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{
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if (cp1258_precompose_map[c1] == 1 && cp1258_precompose_map[c2] == 2)
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return ((wc_uint32)c1 << 8) | c2;
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else
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return 0;
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}
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Str
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wc_conv_from_viet(Str is, wc_ces ces)
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{
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Str os;
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wc_uchar *sp = (wc_uchar *)is->ptr;
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wc_uchar *ep = sp + is->length;
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wc_uchar *p;
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wc_ccs ccs1 = WcCesInfo[WC_CCS_INDEX(ces)].gset[1].ccs;
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wc_ccs ccs2 = WcCesInfo[WC_CCS_INDEX(ces)].gset[2].ccs;
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wc_uint8 *map = NULL;
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switch (ces) {
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case WC_CES_TCVN_5712:
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map = wc_c0_tcvn57122_map;
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break;
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case WC_CES_VISCII_11:
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map = wc_c0_viscii112_map;
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break;
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case WC_CES_VPS:
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map = wc_c0_vps2_map;
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break;
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}
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wc_create_detect_map(ces, WC_FALSE);
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for (p = sp; p < ep && ! WC_DETECT_MAP[*p]; p++)
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;
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if (p == ep)
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return is;
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os = Strnew_size(is->length);
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if (p > sp)
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Strcat_charp_n(os, is->ptr, (int)(p - sp));
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for (; p < ep; p++) {
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if (*p & 0x80)
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wtf_push(os, ccs1, (wc_uint32)*p);
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else if (*p < 0x20 && map[*p])
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wtf_push(os, ccs2, (wc_uint32)*p);
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else
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Strcat_char(os, (char)*p);
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}
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return os;
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}
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void
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wc_push_to_viet(Str os, wc_wchar_t cc, wc_status *st)
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{
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wc_ccs ccs1 = st->ces_info->gset[1].ccs;
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wc_ccs ccs2 = 0, ccs3 = 0;
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wc_uint8 *map = NULL;
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switch (st->ces_info->id) {
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case WC_CES_CP1258:
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ccs3 = st->ces_info->gset[2].ccs;
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break;
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case WC_CES_TCVN_5712:
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map = wc_c0_tcvn57122_map;
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ccs2 = st->ces_info->gset[2].ccs;
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ccs3 = st->ces_info->gset[3].ccs;
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break;
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case WC_CES_VISCII_11:
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map = wc_c0_viscii112_map;
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ccs2 = st->ces_info->gset[2].ccs;
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break;
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case WC_CES_VPS:
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map = wc_c0_vps2_map;
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ccs2 = st->ces_info->gset[2].ccs;
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break;
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}
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while (1) {
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if (cc.ccs == ccs1) {
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Strcat_char(os, (char)(cc.code | 0x80));
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return;
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} else if (cc.ccs == ccs2) {
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Strcat_char(os, (char)(cc.code & 0x7f));
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return;
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} else if (cc.ccs == ccs3) {
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Strcat_char(os, (char)((cc.code >> 8) & 0xff));
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Strcat_char(os, (char)(cc.code & 0xff));
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return;
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}
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switch (cc.ccs) {
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case WC_CCS_US_ASCII:
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if (cc.code < 0x20 && map && map[cc.code])
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Strcat_char(os, ' ');
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else
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Strcat_char(os, (char)cc.code);
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return;
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case WC_CCS_UNKNOWN_W:
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if (!WcOption.no_replace)
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Strcat_charp(os, WC_REPLACE_W);
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return;
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case WC_CCS_UNKNOWN:
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if (!WcOption.no_replace)
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Strcat_charp(os, WC_REPLACE);
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return;
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default:
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#ifdef USE_UNICODE
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if (WcOption.ucs_conv)
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cc = wc_any_to_any_ces(cc, st);
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else
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#endif
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cc.ccs = WC_CCS_IS_WIDE(cc.ccs) ? WC_CCS_UNKNOWN_W : WC_CCS_UNKNOWN;
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continue;
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}
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}
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}
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Str
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wc_char_conv_from_viet(wc_uchar c, wc_status *st)
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{
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Str os = Strnew_size(1);
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wc_uint8 *map = NULL;
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switch (st->ces_info->id) {
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case WC_CES_TCVN_5712:
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map = wc_c0_tcvn57122_map;
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break;
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case WC_CES_VISCII_11:
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map = wc_c0_viscii112_map;
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break;
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case WC_CES_VPS:
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map = wc_c0_vps2_map;
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break;
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}
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if (c & 0x80)
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wtf_push(os, st->ces_info->gset[1].ccs, (wc_uint32)c);
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else if (c < 0x20 && map[c])
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wtf_push(os, st->ces_info->gset[2].ccs, (wc_uint32)c);
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else
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Strcat_char(os, (char)c);
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return os;
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}
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