244 lines
		
	
	
		
			6.7 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
			
		
		
	
	
			244 lines
		
	
	
		
			6.7 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
| 
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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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| 
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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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| 
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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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| 
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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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| 
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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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| 
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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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| 
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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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| 
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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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| 
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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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| 
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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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| 
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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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| 
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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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| 
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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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| 
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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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| 
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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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| 
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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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| 
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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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| 
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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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