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wrc: Use external NLS files for codepage conversions. 

Signed-off-by: Alexandre Julliard <julliard@winehq.org>
This commit is contained in:
Alexandre Julliard 2020-02-12 09:04:59 +01:00
parent a4fc84bd4d
commit 721a2add2f
1 changed files with 104 additions and 18 deletions
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120
tools/wrc/utils.c
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@ -303,23 +303,118 @@ int is_valid_codepage(int id)
return IsValidCodePage( id );
}
static int wrc_mbstowcs( int codepage, int flags, const char *src, int srclen, WCHAR *dst, int dstlen )
static WCHAR *codepage_to_unicode( int codepage, const char *src, int srclen, int *dstlen )
{
return MultiByteToWideChar( codepage, flags, src, srclen, dst, dstlen );
WCHAR *dst = xmalloc( (srclen + 1) * sizeof(WCHAR) );
DWORD ret = MultiByteToWideChar( codepage, MB_ERR_INVALID_CHARS, src, srclen, dst, srclen );
if (!ret) return NULL;
dst[ret] = 0;
*dstlen = ret;
return dst;
}
#else /* _WIN32 */
#include "wine/unicode.h"
struct nls_info
{
unsigned short codepage;
unsigned short unidef;
unsigned short trans_unidef;
unsigned short *cp2uni;
unsigned short *dbcs_offsets;
};
static struct nls_info nlsinfo[128];
static void init_nls_info( struct nls_info *info, unsigned short *ptr )
{
unsigned short hdr_size = ptr[0];
info->codepage = ptr[1];
info->unidef = ptr[4];
info->trans_unidef = ptr[6];
ptr += hdr_size;
info->cp2uni = ++ptr;
ptr += 256;
if (*ptr++) ptr += 256; /* glyph table */
info->dbcs_offsets = *ptr ? ptr + 1 : NULL;
}
static const struct nls_info *get_nls_info( unsigned int codepage )
{
struct stat st;
unsigned short *data;
char *path;
unsigned int i;
int fd;
for (i = 0; i < ARRAY_SIZE(nlsinfo) && nlsinfo[i].codepage; i++)
if (nlsinfo[i].codepage == codepage) return &nlsinfo[i];
assert( i < ARRAY_SIZE(nlsinfo) );
for (i = 0; nlsdirs[i]; i++)
{
path = strmake( "%s/c_%03u.nls", nlsdirs[i], codepage );
if ((fd = open( path, O_RDONLY )) != -1) break;
free( path );
}
if (!nlsdirs[i]) return NULL;
fstat( fd, &st );
data = xmalloc( st.st_size );
if (read( fd, data, st.st_size ) != st.st_size) error( "failed to load %s\n", path );
close( fd );
free( path );
init_nls_info( &nlsinfo[i], data );
return &nlsinfo[i];
}
int is_valid_codepage(int cp)
{
return cp == CP_UTF8 || wine_cp_get_table(cp);
return cp == CP_UTF8 || get_nls_info( cp );
}
static int wrc_mbstowcs( int codepage, int flags, const char *src, int srclen, WCHAR *dst, int dstlen )
static WCHAR *codepage_to_unicode( int codepage, const char *src, int srclen, int *dstlen )
{
return wine_cp_mbstowcs( wine_cp_get_table( codepage ), flags, src, srclen, dst, dstlen );
const struct nls_info *info = get_nls_info( codepage );
unsigned int i;
WCHAR dbch, *dst = xmalloc( (srclen + 1) * sizeof(WCHAR) );
if (!info) error( "codepage %u not supported\n", codepage );
if (info->dbcs_offsets)
{
for (i = 0; srclen; i++, srclen--, src++)
{
unsigned short off = info->dbcs_offsets[(unsigned char)*src];
if (off)
{
if (srclen == 1) return NULL;
dbch = (src[0] << 8) | (unsigned char)src[1];
src++;
srclen--;
dst[i] = info->dbcs_offsets[off + (unsigned char)*src];
if (dst[i] == info->unidef && dbch != info->trans_unidef) return NULL;
}
else
{
dst[i] = info->cp2uni[(unsigned char)*src];
if (dst[i] == info->unidef && *src != info->trans_unidef) return NULL;
}
}
}
else
{
for (i = 0; i < srclen; i++)
{
dst[i] = info->cp2uni[(unsigned char)src[i]];
if (dst[i] == info->unidef && src[i] != info->trans_unidef) return NULL;
}
}
dst[i] = 0;
*dstlen = i;
return dst;
}
#endif /* _WIN32 */
@ -448,7 +543,6 @@ static char *unicode_to_utf8( const WCHAR *src, int srclen, int *dstlen )
string_t *convert_string_unicode( const string_t *str, int codepage )
{
string_t *ret = xmalloc(sizeof(*ret));
int res;
ret->type = str_unicode;
ret->loc = str->loc;
@ -460,16 +554,9 @@ string_t *convert_string_unicode( const string_t *str, int codepage )
if (codepage == CP_UTF8)
ret->str.wstr = utf8_to_unicode( str->str.cstr, str->size, &ret->size );
else
{
ret->str.wstr = xmalloc( (str->size + 1) * sizeof(WCHAR) );
res = wrc_mbstowcs( codepage, MB_ERR_INVALID_CHARS, str->str.cstr, str->size,
ret->str.wstr, str->size );
if (res == -2)
parser_error( "Invalid character in string '%.*s' for codepage %u",
ret->str.wstr = codepage_to_unicode( codepage, str->str.cstr, str->size, &ret->size );
if (!ret->str.wstr) parser_error( "Invalid character in string '%.*s' for codepage %u",
str->size, str->str.cstr, codepage );
ret->size = res;
ret->str.wstr[ret->size] = 0;
}
}
else
{
@ -698,6 +785,5 @@ int get_language_codepage( unsigned short lang, unsigned short sublang )
}
if (cp == -1) cp = defcp;
assert( cp <= 0 || is_valid_codepage(cp) );
return cp;
}