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wine/tools/wrc/utils.c
Alexandre Julliard 701ed2591b wrc: Avoid loading locale.nls when not necessary. 
Signed-off-by: Alexandre Julliard <julliard@winehq.org>
2022-04-04 10:43:09 +02:00

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/*
* Utility routines
*
* Copyright 1998 Bertho A. Stultiens
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
*/
#include "config.h"
#include <assert.h>
#include <stdio.h>
#include <stdlib.h>
#include <stdarg.h>
#include <string.h>
#include <ctype.h>
#include "../tools.h"
#include "wrc.h"
#include "winternl.h"
#include "utils.h"
#include "parser.h"
/* #define WANT_NEAR_INDICATION */
#ifdef WANT_NEAR_INDICATION
void make_print(char *str)
{
while(*str)
{
if(!isprint(*str))
*str = ' ';
str++;
}
}
#endif
static void generic_msg(const char *s, const char *t, const char *n, va_list ap)
{
fprintf(stderr, "%s:%d:%d: %s: ", input_name ? input_name : "stdin", line_number, char_number, t);
vfprintf(stderr, s, ap);
#ifdef WANT_NEAR_INDICATION
{
char *cpy;
if(n)
{
cpy = xstrdup(n);
make_print(cpy);
fprintf(stderr, " near '%s'", cpy);
free(cpy);
}
}
#endif
}
int parser_error(const char *s, ...)
{
va_list ap;
va_start(ap, s);
generic_msg(s, "Error", parser_text, ap);
fputc( '\n', stderr );
va_end(ap);
exit(1);
return 1;
}
int parser_warning(const char *s, ...)
{
va_list ap;
va_start(ap, s);
generic_msg(s, "Warning", parser_text, ap);
va_end(ap);
return 0;
}
void fatal_perror( const char *msg, ... )
{
va_list valist;
va_start( valist, msg );
fprintf(stderr, "Error: ");
vfprintf( stderr, msg, valist );
perror( " " );
va_end( valist );
exit(2);
}
void error(const char *s, ...)
{
va_list ap;
va_start(ap, s);
fprintf(stderr, "Error: ");
vfprintf(stderr, s, ap);
va_end(ap);
exit(2);
}
void warning(const char *s, ...)
{
va_list ap;
va_start(ap, s);
fprintf(stderr, "Warning: ");
vfprintf(stderr, s, ap);
va_end(ap);
}
void chat(const char *s, ...)
{
if(debuglevel & DEBUGLEVEL_CHAT)
{
va_list ap;
va_start(ap, s);
fprintf(stderr, "FYI: ");
vfprintf(stderr, s, ap);
va_end(ap);
}
}
int compare_striA( const char *str1, const char *str2 )
{
for (;;)
{
/* only the A-Z range is case-insensitive */
char ch1 = (*str1 >= 'a' && *str1 <= 'z') ? *str1 + 'A' - 'a' : *str1;
char ch2 = (*str2 >= 'a' && *str2 <= 'z') ? *str2 + 'A' - 'a' : *str2;
if (!ch1 || ch1 != ch2) return ch1 - ch2;
str1++;
str2++;
}
}
int compare_striW( const WCHAR *str1, const WCHAR *str2 )
{
for (;;)
{
/* only the A-Z range is case-insensitive */
WCHAR ch1 = (*str1 >= 'a' && *str1 <= 'z') ? *str1 + 'A' - 'a' : *str1;
WCHAR ch2 = (*str2 >= 'a' && *str2 <= 'z') ? *str2 + 'A' - 'a' : *str2;
if (!ch1 || ch1 != ch2) return ch1 - ch2;
str1++;
str2++;
}
}
int compare_striAW( const char *str1, const WCHAR *str2 )
{
for (;;)
{
/* only the A-Z range is case-insensitive */
WCHAR ch1 = (*str1 >= 'a' && *str1 <= 'z') ? *str1 + 'A' - 'a' : (unsigned char)*str1;
WCHAR ch2 = (*str2 >= 'a' && *str2 <= 'z') ? *str2 + 'A' - 'a' : *str2;
if (!ch1 || ch1 != ch2) return ch1 - ch2;
str1++;
str2++;
}
}
/*
*****************************************************************************
* Function : compare_name_id
* Syntax : int compare_name_id(const name_id_t *n1, const name_id_t *n2)
* Input :
* Output :
* Description :
* Remarks :
*****************************************************************************
*/
int compare_name_id(const name_id_t *n1, const name_id_t *n2)
{
if (n1->type != n2->type) return n1->type == name_ord ? 1 : -1;
if (n1->type == name_ord) return n1->name.i_name - n2->name.i_name;
if (n1->name.s_name->type == str_char)
{
if (n2->name.s_name->type == str_char)
return compare_striA(n1->name.s_name->str.cstr, n2->name.s_name->str.cstr);
return compare_striAW(n1->name.s_name->str.cstr, n2->name.s_name->str.wstr);
}
else
{
if (n2->name.s_name->type == str_char)
return -compare_striAW(n2->name.s_name->str.cstr, n1->name.s_name->str.wstr);
return compare_striW(n1->name.s_name->str.wstr, n2->name.s_name->str.wstr);
}
}
#ifdef _WIN32
int is_valid_codepage(int id)
{
return IsValidCodePage( id );
}
static WCHAR *codepage_to_unicode( int codepage, const char *src, int srclen, int *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;
}
int get_language_codepage( language_t lang )
{
DWORD codepage;
if (!lang) return 1252;
if (!GetLocaleInfoW( lang, LOCALE_IDEFAULTANSICODEPAGE | LOCALE_RETURN_NUMBER,
(WCHAR *)&codepage, sizeof(codepage)/sizeof(WCHAR) )) return -1;
return codepage;
}
#else /* _WIN32 */
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 )
{
unsigned short *data;
char *path;
unsigned int i;
size_t size;
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 ((data = read_file( path, &size )))
{
free( path );
init_nls_info( &nlsinfo[i], data );
return &nlsinfo[i];
}
free( path );
}
return NULL;
}
int is_valid_codepage(int cp)
{
return cp == CP_UTF8 || get_nls_info( cp );
}
static WCHAR *codepage_to_unicode( int codepage, const char *src, int srclen, int *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;
}
static const NLS_LOCALE_LCID_INDEX *lcids_index;
static const NLS_LOCALE_HEADER *locale_table;
static const NLS_LOCALE_LCNAME_INDEX *lcnames_index;
static const WCHAR *locale_strings;
static void load_locale_nls(void)
{
struct
{
unsigned int ctypes;
unsigned int unknown1;
unsigned int unknown2;
unsigned int unknown3;
unsigned int locales;
unsigned int charmaps;
unsigned int geoids;
unsigned int scripts;
} *header;
char *path;
unsigned int i;
size_t size;
for (i = 0; nlsdirs[i]; i++)
{
path = strmake( "%s/locale.nls", nlsdirs[i] );
header = read_file( path, &size );
free( path );
if (!header) continue;
locale_table = (const NLS_LOCALE_HEADER *)((char *)header + header->locales);
lcids_index = (const NLS_LOCALE_LCID_INDEX *)((char *)locale_table + locale_table->lcids_offset);
lcnames_index = (const NLS_LOCALE_LCNAME_INDEX *)((char *)locale_table + locale_table->lcnames_offset);
locale_strings = (const WCHAR *)((char *)locale_table + locale_table->strings_offset);
return;
}
error( "unable to load locale.nls\n" );
}
static const NLS_LOCALE_LCID_INDEX *find_lcid_entry( LCID lcid )
{
int min = 0, max = locale_table->nb_lcids - 1;
while (min <= max)
{
int pos = (min + max) / 2;
if (lcid < lcids_index[pos].id) max = pos - 1;
else if (lcid > lcids_index[pos].id) min = pos + 1;
else return &lcids_index[pos];
}
return NULL;
}
static const NLS_LOCALE_DATA *get_locale_data( UINT idx )
{
ULONG offset = locale_table->locales_offset + idx * locale_table->locale_size;
return (const NLS_LOCALE_DATA *)((const char *)locale_table + offset);
}
int get_language_codepage( language_t lang )
{
const NLS_LOCALE_LCID_INDEX *entry;
if (!lang) return 1252;
if (lang == MAKELANGID( LANG_ENGLISH, SUBLANG_DEFAULT )) return 1252;
if (!locale_table) load_locale_nls();
if (!(entry = find_lcid_entry( lang ))) return -1;
return get_locale_data( entry->idx )->idefaultansicodepage;
}
#endif /* _WIN32 */
static WCHAR *utf8_to_unicode( const char *src, int srclen, int *dstlen )
{
static const char utf8_length[128] =
{
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x80-0x8f */
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x90-0x9f */
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0xa0-0xaf */
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0xb0-0xbf */
0,0,1,1,1,1,1,1,1,1,1,1,1,1,1,1, /* 0xc0-0xcf */
1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1, /* 0xd0-0xdf */
2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2, /* 0xe0-0xef */
3,3,3,3,3,0,0,0,0,0,0,0,0,0,0,0 /* 0xf0-0xff */
};
static const unsigned char utf8_mask[4] = { 0x7f, 0x1f, 0x0f, 0x07 };
const char *srcend = src + srclen;
int len, res;
WCHAR *ret, *dst;
dst = ret = xmalloc( (srclen + 1) * sizeof(WCHAR) );
while (src < srcend)
{
unsigned char ch = *src++;
if (ch < 0x80) /* special fast case for 7-bit ASCII */
{
*dst++ = ch;
continue;
}
len = utf8_length[ch - 0x80];
if (len && src + len <= srcend)
{
res = ch & utf8_mask[len];
switch (len)
{
case 3:
if ((ch = *src ^ 0x80) >= 0x40) break;
res = (res << 6) | ch;
src++;
if (res < 0x10) break;
case 2:
if ((ch = *src ^ 0x80) >= 0x40) break;
res = (res << 6) | ch;
if (res >= 0x110000 >> 6) break;
src++;
if (res < 0x20) break;
if (res >= 0xd800 >> 6 && res <= 0xdfff >> 6) break;
case 1:
if ((ch = *src ^ 0x80) >= 0x40) break;
res = (res << 6) | ch;
src++;
if (res < 0x80) break;
if (res <= 0xffff) *dst++ = res;
else
{
res -= 0x10000;
*dst++ = 0xd800 | (res >> 10);
*dst++ = 0xdc00 | (res & 0x3ff);
}
continue;
}
}
*dst++ = 0xfffd;
}
*dst = 0;
*dstlen = dst - ret;
return ret;
}
static char *unicode_to_utf8( const WCHAR *src, int srclen, int *dstlen )
{
char *ret, *dst;
dst = ret = xmalloc( srclen * 3 + 1 );
for ( ; srclen; srclen--, src++)
{
unsigned int ch = *src;
if (ch < 0x80) /* 0x00-0x7f: 1 byte */
{
*dst++ = ch;
continue;
}
if (ch < 0x800) /* 0x80-0x7ff: 2 bytes */
{
dst[1] = 0x80 | (ch & 0x3f);
ch >>= 6;
dst[0] = 0xc0 | ch;
dst += 2;
continue;
}
if (ch >= 0xd800 && ch <= 0xdbff && srclen > 1 && src[1] >= 0xdc00 && src[1] <= 0xdfff)
{
/* 0x10000-0x10ffff: 4 bytes */
ch = 0x10000 + ((ch & 0x3ff) << 10) + (src[1] & 0x3ff);
dst[3] = 0x80 | (ch & 0x3f);
ch >>= 6;
dst[2] = 0x80 | (ch & 0x3f);
ch >>= 6;
dst[1] = 0x80 | (ch & 0x3f);
ch >>= 6;
dst[0] = 0xf0 | ch;
dst += 4;
src++;
srclen--;
continue;
}
if (ch >= 0xd800 && ch <= 0xdfff) ch = 0xfffd; /* invalid surrogate pair */
/* 0x800-0xffff: 3 bytes */
dst[2] = 0x80 | (ch & 0x3f);
ch >>= 6;
dst[1] = 0x80 | (ch & 0x3f);
ch >>= 6;
dst[0] = 0xe0 | ch;
dst += 3;
}
*dst = 0;
*dstlen = dst - ret;
return ret;
}
string_t *convert_string_unicode( const string_t *str, int codepage )
{
string_t *ret = xmalloc(sizeof(*ret));
ret->type = str_unicode;
ret->loc = str->loc;
if (str->type == str_char)
{
if (!codepage) parser_error( "Current language is Unicode only, cannot convert string" );
if (codepage == CP_UTF8)
ret->str.wstr = utf8_to_unicode( str->str.cstr, str->size, &ret->size );
else
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 );
}
else
{
ret->size = str->size;
ret->str.wstr = xmalloc(sizeof(WCHAR)*(ret->size+1));
memcpy( ret->str.wstr, str->str.wstr, ret->size * sizeof(WCHAR) );
ret->str.wstr[ret->size] = 0;
}
return ret;
}
char *convert_string_utf8( const string_t *str, int codepage )
{
int len;
string_t *wstr = convert_string_unicode( str, codepage );
char *ret = unicode_to_utf8( wstr->str.wstr, wstr->size, &len );
free_string( wstr );
return ret;
}
void free_string(string_t *str)
{
if (str->type == str_unicode) free( str->str.wstr );
else free( str->str.cstr );
free( str );
}
/* check if the string is valid utf8 despite a different codepage being in use */
int check_valid_utf8( const string_t *str, int codepage )
{
int i, count;
WCHAR *wstr;
if (!check_utf8) return 0;
if (!codepage) return 0;
if (codepage == CP_UTF8) return 0;
if (!is_valid_codepage( codepage )) return 0;
for (i = count = 0; i < str->size; i++)
{
if ((unsigned char)str->str.cstr[i] >= 0xf5) goto done;
if ((unsigned char)str->str.cstr[i] >= 0xc2) { count++; continue; }
if ((unsigned char)str->str.cstr[i] >= 0x80) goto done;
}
if (!count) return 0; /* no 8-bit chars at all */
wstr = utf8_to_unicode( str->str.cstr, str->size, &count );
for (i = 0; i < count; i++) if (wstr[i] == 0xfffd) break;
free( wstr );
return (i == count);
done:
check_utf8 = 0; /* at least one 8-bit non-utf8 string found, stop checking */
return 0;
}
const char *get_nameid_str(const name_id_t *n)
{
int len;
if (!n) return "<none>";
if (n->type == name_ord) return strmake( "%u", n->name.i_name );
if (n->name.s_name->type == str_char) return n->name.s_name->str.cstr;
return unicode_to_utf8( n->name.s_name->str.wstr, n->name.s_name->size, &len );
}
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