forked from Mirrors/wine-wine
832 lines
19 KiB
Plaintext
832 lines
19 KiB
Plaintext
%{
|
|
|
|
/*
|
|
* Copyright 2012 Hans Leidekker for CodeWeavers
|
|
*
|
|
* 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 <stdarg.h>
|
|
|
|
#include "windef.h"
|
|
#include "winbase.h"
|
|
#include "wbemcli.h"
|
|
#include "wbemprox_private.h"
|
|
|
|
#include "wine/list.h"
|
|
#include "wine/debug.h"
|
|
|
|
WINE_DEFAULT_DEBUG_CHANNEL(wbemprox);
|
|
|
|
struct parser
|
|
{
|
|
const WCHAR *cmd;
|
|
UINT idx;
|
|
UINT len;
|
|
HRESULT error;
|
|
struct view **view;
|
|
struct list *mem;
|
|
};
|
|
|
|
struct string
|
|
{
|
|
const WCHAR *data;
|
|
int len;
|
|
};
|
|
|
|
static void *alloc_mem( struct parser *parser, UINT size )
|
|
{
|
|
struct list *mem = heap_alloc( sizeof(struct list) + size );
|
|
list_add_tail( parser->mem, mem );
|
|
return &mem[1];
|
|
}
|
|
|
|
static struct property *alloc_property( struct parser *parser, const WCHAR *class, const WCHAR *name )
|
|
{
|
|
struct property *prop = alloc_mem( parser, sizeof(*prop) );
|
|
if (prop)
|
|
{
|
|
prop->name = name;
|
|
prop->class = class;
|
|
prop->next = NULL;
|
|
}
|
|
return prop;
|
|
}
|
|
|
|
static struct keyword *alloc_keyword( struct parser *parser, const WCHAR *name, const WCHAR *value )
|
|
{
|
|
struct keyword *keyword = alloc_mem( parser, sizeof(*keyword) );
|
|
if (keyword)
|
|
{
|
|
keyword->name = name;
|
|
keyword->value = value;
|
|
keyword->next = NULL;
|
|
}
|
|
return keyword;
|
|
}
|
|
|
|
static WCHAR *get_string( struct parser *parser, const struct string *str )
|
|
{
|
|
const WCHAR *p = str->data;
|
|
int len = str->len;
|
|
WCHAR *ret;
|
|
|
|
if ((p[0] == '\"' && p[len - 1] != '\"') ||
|
|
(p[0] == '\'' && p[len - 1] != '\'')) return NULL;
|
|
if ((p[0] == '\"' && p[len - 1] == '\"') ||
|
|
(p[0] == '\'' && p[len - 1] == '\''))
|
|
{
|
|
p++;
|
|
len -= 2;
|
|
}
|
|
if (!(ret = alloc_mem( parser, (len + 1) * sizeof(WCHAR) ))) return NULL;
|
|
memcpy( ret, p, len * sizeof(WCHAR) );
|
|
ret[len] = 0;
|
|
return ret;
|
|
}
|
|
|
|
static WCHAR *get_path( struct parser *parser, const struct string *str )
|
|
{
|
|
const WCHAR *p = str->data;
|
|
int len = str->len;
|
|
WCHAR *ret;
|
|
|
|
if (p[0] == '{' && p[len - 1] == '}')
|
|
{
|
|
p++;
|
|
len -= 2;
|
|
}
|
|
|
|
if (!(ret = alloc_mem( parser, (len + 1) * sizeof(WCHAR) ))) return NULL;
|
|
memcpy( ret, p, len * sizeof(WCHAR) );
|
|
ret[len] = 0;
|
|
return ret;
|
|
}
|
|
|
|
static int get_int( struct parser *parser )
|
|
{
|
|
const WCHAR *p = &parser->cmd[parser->idx];
|
|
int i, ret = 0;
|
|
|
|
for (i = 0; i < parser->len; i++)
|
|
{
|
|
if (p[i] < '0' || p[i] > '9')
|
|
{
|
|
ERR("should only be numbers here!\n");
|
|
break;
|
|
}
|
|
ret = (p[i] - '0') + ret * 10;
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
static struct expr *expr_complex( struct parser *parser, struct expr *l, UINT op, struct expr *r )
|
|
{
|
|
struct expr *e = alloc_mem( parser, sizeof(*e) );
|
|
if (e)
|
|
{
|
|
e->type = EXPR_COMPLEX;
|
|
e->u.expr.left = l;
|
|
e->u.expr.op = op;
|
|
e->u.expr.right = r;
|
|
}
|
|
return e;
|
|
}
|
|
|
|
static struct expr *expr_unary( struct parser *parser, struct expr *l, UINT op )
|
|
{
|
|
struct expr *e = alloc_mem( parser, sizeof(*e) );
|
|
if (e)
|
|
{
|
|
e->type = EXPR_UNARY;
|
|
e->u.expr.left = l;
|
|
e->u.expr.op = op;
|
|
e->u.expr.right = NULL;
|
|
}
|
|
return e;
|
|
}
|
|
|
|
static struct expr *expr_ival( struct parser *parser, int val )
|
|
{
|
|
struct expr *e = alloc_mem( parser, sizeof *e );
|
|
if (e)
|
|
{
|
|
e->type = EXPR_IVAL;
|
|
e->u.ival = val;
|
|
}
|
|
return e;
|
|
}
|
|
|
|
static struct expr *expr_sval( struct parser *parser, const struct string *str )
|
|
{
|
|
struct expr *e = alloc_mem( parser, sizeof *e );
|
|
if (e)
|
|
{
|
|
e->type = EXPR_SVAL;
|
|
e->u.sval = get_string( parser, str );
|
|
if (!e->u.sval)
|
|
return NULL; /* e will be freed by query destructor */
|
|
}
|
|
return e;
|
|
}
|
|
|
|
static struct expr *expr_bval( struct parser *parser, int val )
|
|
{
|
|
struct expr *e = alloc_mem( parser, sizeof *e );
|
|
if (e)
|
|
{
|
|
e->type = EXPR_BVAL;
|
|
e->u.ival = val;
|
|
}
|
|
return e;
|
|
}
|
|
|
|
static struct expr *expr_propval( struct parser *parser, const struct property *prop )
|
|
{
|
|
struct expr *e = alloc_mem( parser, sizeof *e );
|
|
if (e)
|
|
{
|
|
e->type = EXPR_PROPVAL;
|
|
e->u.propval = prop;
|
|
}
|
|
return e;
|
|
}
|
|
|
|
static int wql_error( struct parser *parser, const char *str );
|
|
static int wql_lex( void *val, struct parser *parser );
|
|
|
|
#define PARSER_BUBBLE_UP_VIEW( parser, result, current_view ) \
|
|
*parser->view = current_view; \
|
|
result = current_view
|
|
|
|
%}
|
|
|
|
%lex-param { struct parser *ctx }
|
|
%parse-param { struct parser *ctx }
|
|
%define parse.error verbose
|
|
%define api.pure
|
|
|
|
%union
|
|
{
|
|
struct string str;
|
|
WCHAR *string;
|
|
struct property *proplist;
|
|
struct keyword *keywordlist;
|
|
struct view *view;
|
|
struct expr *expr;
|
|
int integer;
|
|
}
|
|
|
|
%token TK_SELECT TK_FROM TK_STAR TK_COMMA TK_DOT TK_IS TK_LP TK_RP TK_NULL TK_FALSE TK_TRUE
|
|
%token TK_INTEGER TK_WHERE TK_SPACE TK_MINUS TK_ILLEGAL TK_BY TK_ASSOCIATORS TK_OF
|
|
%token <str> TK_STRING TK_ID TK_PATH
|
|
|
|
%type <string> id path
|
|
%type <proplist> prop proplist
|
|
%type <keywordlist> keyword keywordlist
|
|
%type <view> query select associatorsof
|
|
%type <expr> expr prop_val const_val string_val
|
|
%type <integer> number
|
|
|
|
%left TK_OR TK_AND TK_NOT TK_EQ TK_NE TK_LT TK_GT TK_LE TK_GE TK_LIKE
|
|
|
|
%%
|
|
|
|
query:
|
|
select
|
|
|
|
|
associatorsof
|
|
;
|
|
|
|
path:
|
|
TK_PATH
|
|
{
|
|
$$ = get_path( ctx, &$1 );
|
|
if (!$$)
|
|
YYABORT;
|
|
}
|
|
;
|
|
|
|
keyword:
|
|
id
|
|
{
|
|
$$ = alloc_keyword( ctx, $1, NULL );
|
|
if (!$$)
|
|
YYABORT;
|
|
}
|
|
| id TK_EQ id
|
|
{
|
|
$$ = alloc_keyword( ctx, $1, $3 );
|
|
if (!$$)
|
|
YYABORT;
|
|
}
|
|
;
|
|
|
|
keywordlist:
|
|
keyword
|
|
| keyword keywordlist
|
|
{
|
|
$1->next = $2;
|
|
}
|
|
;
|
|
|
|
associatorsof:
|
|
TK_ASSOCIATORS TK_OF path
|
|
{
|
|
HRESULT hr;
|
|
struct parser *parser = ctx;
|
|
struct view *view;
|
|
|
|
hr = create_view( VIEW_TYPE_ASSOCIATORS, $3, NULL, NULL, NULL, NULL, &view );
|
|
if (hr != S_OK)
|
|
YYABORT;
|
|
|
|
PARSER_BUBBLE_UP_VIEW( parser, $$, view );
|
|
}
|
|
| TK_ASSOCIATORS TK_OF path TK_WHERE keywordlist
|
|
{
|
|
HRESULT hr;
|
|
struct parser *parser = ctx;
|
|
struct view *view;
|
|
|
|
hr = create_view( VIEW_TYPE_ASSOCIATORS, $3, $5, NULL, NULL, NULL, &view );
|
|
if (hr != S_OK)
|
|
YYABORT;
|
|
|
|
PARSER_BUBBLE_UP_VIEW( parser, $$, view );
|
|
}
|
|
;
|
|
|
|
select:
|
|
TK_SELECT TK_FROM id
|
|
{
|
|
HRESULT hr;
|
|
struct parser *parser = ctx;
|
|
struct view *view;
|
|
|
|
hr = create_view( VIEW_TYPE_SELECT, NULL, NULL, $3, NULL, NULL, &view );
|
|
if (hr != S_OK)
|
|
YYABORT;
|
|
|
|
PARSER_BUBBLE_UP_VIEW( parser, $$, view );
|
|
}
|
|
| TK_SELECT proplist TK_FROM id
|
|
{
|
|
HRESULT hr;
|
|
struct parser *parser = ctx;
|
|
struct view *view;
|
|
|
|
hr = create_view( VIEW_TYPE_SELECT, NULL, NULL, $4, $2, NULL, &view );
|
|
if (hr != S_OK)
|
|
YYABORT;
|
|
|
|
PARSER_BUBBLE_UP_VIEW( parser, $$, view );
|
|
}
|
|
| TK_SELECT proplist TK_FROM id TK_WHERE expr
|
|
{
|
|
HRESULT hr;
|
|
struct parser *parser = ctx;
|
|
struct view *view;
|
|
|
|
hr = create_view( VIEW_TYPE_SELECT, NULL, NULL, $4, $2, $6, &view );
|
|
if (hr != S_OK)
|
|
YYABORT;
|
|
|
|
PARSER_BUBBLE_UP_VIEW( parser, $$, view );
|
|
}
|
|
;
|
|
|
|
proplist:
|
|
prop
|
|
| prop TK_COMMA proplist
|
|
{
|
|
$1->next = $3;
|
|
}
|
|
| TK_STAR
|
|
{
|
|
$$ = NULL;
|
|
}
|
|
;
|
|
|
|
prop:
|
|
id TK_DOT id
|
|
{
|
|
$$ = alloc_property( ctx, $1, $3 );
|
|
if (!$$)
|
|
YYABORT;
|
|
}
|
|
| id
|
|
{
|
|
$$ = alloc_property( ctx, NULL, $1 );
|
|
if (!$$)
|
|
YYABORT;
|
|
}
|
|
;
|
|
|
|
id:
|
|
TK_ID
|
|
{
|
|
$$ = get_string( ctx, &$1 );
|
|
if (!$$)
|
|
YYABORT;
|
|
}
|
|
;
|
|
|
|
number:
|
|
TK_INTEGER
|
|
{
|
|
$$ = get_int( ctx );
|
|
}
|
|
;
|
|
|
|
expr:
|
|
TK_LP expr TK_RP
|
|
{
|
|
$$ = $2;
|
|
if (!$$)
|
|
YYABORT;
|
|
}
|
|
| expr TK_AND expr
|
|
{
|
|
$$ = expr_complex( ctx, $1, OP_AND, $3 );
|
|
if (!$$)
|
|
YYABORT;
|
|
}
|
|
| expr TK_OR expr
|
|
{
|
|
$$ = expr_complex( ctx, $1, OP_OR, $3 );
|
|
if (!$$)
|
|
YYABORT;
|
|
}
|
|
| TK_NOT expr
|
|
{
|
|
$$ = expr_unary( ctx, $2, OP_NOT );
|
|
if (!$$)
|
|
YYABORT;
|
|
}
|
|
| prop_val TK_EQ const_val
|
|
{
|
|
$$ = expr_complex( ctx, $1, OP_EQ, $3 );
|
|
if (!$$)
|
|
YYABORT;
|
|
}
|
|
| prop_val TK_GT const_val
|
|
{
|
|
$$ = expr_complex( ctx, $1, OP_GT, $3 );
|
|
if (!$$)
|
|
YYABORT;
|
|
}
|
|
| prop_val TK_LT const_val
|
|
{
|
|
$$ = expr_complex( ctx, $1, OP_LT, $3 );
|
|
if (!$$)
|
|
YYABORT;
|
|
}
|
|
| prop_val TK_LE const_val
|
|
{
|
|
$$ = expr_complex( ctx, $1, OP_LE, $3 );
|
|
if (!$$)
|
|
YYABORT;
|
|
}
|
|
| prop_val TK_GE const_val
|
|
{
|
|
$$ = expr_complex( ctx, $1, OP_GE, $3 );
|
|
if (!$$)
|
|
YYABORT;
|
|
}
|
|
| prop_val TK_NE const_val
|
|
{
|
|
$$ = expr_complex( ctx, $1, OP_NE, $3 );
|
|
if (!$$)
|
|
YYABORT;
|
|
}
|
|
| const_val TK_EQ prop_val
|
|
{
|
|
$$ = expr_complex( ctx, $1, OP_EQ, $3 );
|
|
if (!$$)
|
|
YYABORT;
|
|
}
|
|
| const_val TK_GT prop_val
|
|
{
|
|
$$ = expr_complex( ctx, $1, OP_GT, $3 );
|
|
if (!$$)
|
|
YYABORT;
|
|
}
|
|
| const_val TK_LT prop_val
|
|
{
|
|
$$ = expr_complex( ctx, $1, OP_LT, $3 );
|
|
if (!$$)
|
|
YYABORT;
|
|
}
|
|
| const_val TK_LE prop_val
|
|
{
|
|
$$ = expr_complex( ctx, $1, OP_LE, $3 );
|
|
if (!$$)
|
|
YYABORT;
|
|
}
|
|
| const_val TK_GE prop_val
|
|
{
|
|
$$ = expr_complex( ctx, $1, OP_GE, $3 );
|
|
if (!$$)
|
|
YYABORT;
|
|
}
|
|
| const_val TK_NE prop_val
|
|
{
|
|
$$ = expr_complex( ctx, $1, OP_NE, $3 );
|
|
if (!$$)
|
|
YYABORT;
|
|
}
|
|
| prop_val TK_LIKE string_val
|
|
{
|
|
$$ = expr_complex( ctx, $1, OP_LIKE, $3 );
|
|
if (!$$)
|
|
YYABORT;
|
|
}
|
|
| prop_val TK_IS TK_NULL
|
|
{
|
|
$$ = expr_unary( ctx, $1, OP_ISNULL );
|
|
if (!$$)
|
|
YYABORT;
|
|
}
|
|
| prop_val TK_IS TK_NOT TK_NULL
|
|
{
|
|
$$ = expr_unary( ctx, $1, OP_NOTNULL );
|
|
if (!$$)
|
|
YYABORT;
|
|
}
|
|
| prop_val TK_EQ TK_NULL
|
|
{
|
|
$$ = expr_unary( ctx, $1, OP_ISNULL );
|
|
if (!$$)
|
|
YYABORT;
|
|
}
|
|
| TK_NULL TK_EQ prop_val
|
|
{
|
|
$$ = expr_unary( ctx, $3, OP_ISNULL );
|
|
if (!$$)
|
|
YYABORT;
|
|
}
|
|
| prop_val TK_NE TK_NULL
|
|
{
|
|
$$ = expr_unary( ctx, $1, OP_NOTNULL );
|
|
if (!$$)
|
|
YYABORT;
|
|
}
|
|
| TK_NULL TK_NE prop_val
|
|
{
|
|
$$ = expr_unary( ctx, $3, OP_NOTNULL );
|
|
if (!$$)
|
|
YYABORT;
|
|
}
|
|
;
|
|
|
|
string_val:
|
|
TK_STRING
|
|
{
|
|
$$ = expr_sval( ctx, &$1 );
|
|
if (!$$)
|
|
YYABORT;
|
|
}
|
|
;
|
|
|
|
prop_val:
|
|
prop
|
|
{
|
|
$$ = expr_propval( ctx, $1 );
|
|
if (!$$)
|
|
YYABORT;
|
|
}
|
|
;
|
|
|
|
const_val:
|
|
number
|
|
{
|
|
$$ = expr_ival( ctx, $1 );
|
|
if (!$$)
|
|
YYABORT;
|
|
}
|
|
| TK_STRING
|
|
{
|
|
$$ = expr_sval( ctx, &$1 );
|
|
if (!$$)
|
|
YYABORT;
|
|
}
|
|
| TK_TRUE
|
|
{
|
|
$$ = expr_bval( ctx, -1 );
|
|
if (!$$)
|
|
YYABORT;
|
|
}
|
|
| TK_FALSE
|
|
{
|
|
$$ = expr_bval( ctx, 0 );
|
|
if (!$$)
|
|
YYABORT;
|
|
}
|
|
;
|
|
|
|
%%
|
|
|
|
HRESULT parse_query( const WCHAR *str, struct view **view, struct list *mem )
|
|
{
|
|
struct parser parser;
|
|
int ret;
|
|
|
|
*view = NULL;
|
|
|
|
parser.cmd = str;
|
|
parser.idx = 0;
|
|
parser.len = 0;
|
|
parser.error = WBEM_E_INVALID_QUERY;
|
|
parser.view = view;
|
|
parser.mem = mem;
|
|
|
|
ret = wql_parse( &parser );
|
|
TRACE("wql_parse returned %d\n", ret);
|
|
if (ret)
|
|
{
|
|
if (*parser.view)
|
|
{
|
|
destroy_view( *parser.view );
|
|
*parser.view = NULL;
|
|
}
|
|
return parser.error;
|
|
}
|
|
return S_OK;
|
|
}
|
|
|
|
static const char id_char[] =
|
|
{
|
|
0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
|
|
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
|
|
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0,
|
|
1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0,
|
|
0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
|
|
1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 1,
|
|
0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
|
|
1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0,
|
|
1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
|
|
1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
|
|
1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
|
|
1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
|
|
1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
|
|
1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
|
|
1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
|
|
1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
|
|
};
|
|
|
|
struct wql_keyword
|
|
{
|
|
const WCHAR *name;
|
|
unsigned int len;
|
|
int type;
|
|
};
|
|
|
|
#define MIN_TOKEN_LEN 2
|
|
#define MAX_TOKEN_LEN 11
|
|
|
|
static const WCHAR andW[] = {'A','N','D'};
|
|
static const WCHAR associatorsW[] = {'A','S','S','O','C','I','A','T','O','R','S'};
|
|
static const WCHAR byW[] = {'B','Y'};
|
|
static const WCHAR falseW[] = {'F','A','L','S','E'};
|
|
static const WCHAR fromW[] = {'F','R','O','M'};
|
|
static const WCHAR isW[] = {'I','S'};
|
|
static const WCHAR likeW[] = {'L','I','K','E'};
|
|
static const WCHAR notW[] = {'N','O','T'};
|
|
static const WCHAR nullW[] = {'N','U','L','L'};
|
|
static const WCHAR ofW[] = {'O','F'};
|
|
static const WCHAR orW[] = {'O','R'};
|
|
static const WCHAR selectW[] = {'S','E','L','E','C','T'};
|
|
static const WCHAR trueW[] = {'T','R','U','E'};
|
|
static const WCHAR whereW[] = {'W','H','E','R','E'};
|
|
|
|
static const struct wql_keyword keyword_table[] =
|
|
{
|
|
{ andW, ARRAY_SIZE(andW), TK_AND },
|
|
{ associatorsW, ARRAY_SIZE(associatorsW), TK_ASSOCIATORS },
|
|
{ byW, ARRAY_SIZE(byW), TK_BY },
|
|
{ falseW, ARRAY_SIZE(falseW), TK_FALSE },
|
|
{ fromW, ARRAY_SIZE(fromW), TK_FROM },
|
|
{ isW, ARRAY_SIZE(isW), TK_IS },
|
|
{ likeW, ARRAY_SIZE(likeW), TK_LIKE },
|
|
{ notW, ARRAY_SIZE(notW), TK_NOT },
|
|
{ nullW, ARRAY_SIZE(nullW), TK_NULL },
|
|
{ ofW, ARRAY_SIZE(ofW), TK_OF },
|
|
{ orW, ARRAY_SIZE(orW), TK_OR },
|
|
{ selectW, ARRAY_SIZE(selectW), TK_SELECT },
|
|
{ trueW, ARRAY_SIZE(trueW), TK_TRUE },
|
|
{ whereW, ARRAY_SIZE(whereW), TK_WHERE }
|
|
};
|
|
|
|
static int __cdecl cmp_keyword( const void *arg1, const void *arg2 )
|
|
{
|
|
const struct wql_keyword *key1 = arg1, *key2 = arg2;
|
|
int len = min( key1->len, key2->len );
|
|
int ret;
|
|
|
|
if ((ret = wcsnicmp( key1->name, key2->name, len ))) return ret;
|
|
if (key1->len < key2->len) return -1;
|
|
else if (key1->len > key2->len) return 1;
|
|
return 0;
|
|
}
|
|
|
|
static int keyword_type( const WCHAR *str, unsigned int len )
|
|
{
|
|
struct wql_keyword key, *ret;
|
|
|
|
if (len < MIN_TOKEN_LEN || len > MAX_TOKEN_LEN) return TK_ID;
|
|
|
|
key.name = str;
|
|
key.len = len;
|
|
key.type = 0;
|
|
ret = bsearch( &key, keyword_table, ARRAY_SIZE(keyword_table), sizeof(struct wql_keyword), cmp_keyword );
|
|
if (ret) return ret->type;
|
|
return TK_ID;
|
|
}
|
|
|
|
static int get_token( const WCHAR *s, int *token )
|
|
{
|
|
int i;
|
|
|
|
switch (*s)
|
|
{
|
|
case ' ':
|
|
case '\t':
|
|
case '\r':
|
|
case '\n':
|
|
for (i = 1; iswspace( s[i] ); i++) {}
|
|
*token = TK_SPACE;
|
|
return i;
|
|
case '-':
|
|
if (!s[1]) return -1;
|
|
*token = TK_MINUS;
|
|
return 1;
|
|
case '(':
|
|
*token = TK_LP;
|
|
return 1;
|
|
case ')':
|
|
*token = TK_RP;
|
|
return 1;
|
|
case '{':
|
|
for (i = 1; s[i] && s[i] != '}'; i++) {}
|
|
if (s[i] != '}')
|
|
{
|
|
*token = TK_ILLEGAL;
|
|
return i;
|
|
}
|
|
*token = TK_PATH;
|
|
return i + 1;
|
|
case '*':
|
|
*token = TK_STAR;
|
|
return 1;
|
|
case '=':
|
|
*token = TK_EQ;
|
|
return 1;
|
|
case '<':
|
|
if (s[1] == '=' )
|
|
{
|
|
*token = TK_LE;
|
|
return 2;
|
|
}
|
|
else if (s[1] == '>')
|
|
{
|
|
*token = TK_NE;
|
|
return 2;
|
|
}
|
|
else
|
|
{
|
|
*token = TK_LT;
|
|
return 1;
|
|
}
|
|
case '>':
|
|
if (s[1] == '=')
|
|
{
|
|
*token = TK_GE;
|
|
return 2;
|
|
}
|
|
else
|
|
{
|
|
*token = TK_GT;
|
|
return 1;
|
|
}
|
|
case '!':
|
|
if (s[1] != '=')
|
|
{
|
|
*token = TK_ILLEGAL;
|
|
return 2;
|
|
}
|
|
else
|
|
{
|
|
*token = TK_NE;
|
|
return 2;
|
|
}
|
|
case ',':
|
|
*token = TK_COMMA;
|
|
return 1;
|
|
case '\"':
|
|
case '\'':
|
|
for (i = 1; s[i]; i++)
|
|
{
|
|
if (s[i] == s[0]) break;
|
|
}
|
|
if (s[i]) i++;
|
|
*token = TK_STRING;
|
|
return i;
|
|
case '.':
|
|
if (!is_digit( s[1] ))
|
|
{
|
|
*token = TK_DOT;
|
|
return 1;
|
|
}
|
|
/* fall through */
|
|
case '0': case '1': case '2': case '3': case '4':
|
|
case '5': case '6': case '7': case '8': case '9':
|
|
*token = TK_INTEGER;
|
|
for (i = 1; is_digit( s[i] ); i++) {}
|
|
return i;
|
|
default:
|
|
if (!id_char[*s]) break;
|
|
|
|
for (i = 1; id_char[s[i]]; i++) {}
|
|
*token = keyword_type( s, i );
|
|
return i;
|
|
}
|
|
*token = TK_ILLEGAL;
|
|
return 1;
|
|
}
|
|
|
|
static int wql_lex( void *p, struct parser *parser )
|
|
{
|
|
struct string *str = p;
|
|
int token = -1;
|
|
do
|
|
{
|
|
parser->idx += parser->len;
|
|
if (!parser->cmd[parser->idx]) return 0;
|
|
parser->len = get_token( &parser->cmd[parser->idx], &token );
|
|
if (!parser->len) break;
|
|
|
|
str->data = &parser->cmd[parser->idx];
|
|
str->len = parser->len;
|
|
} while (token == TK_SPACE);
|
|
return token;
|
|
}
|
|
|
|
static int wql_error( struct parser *parser, const char *str )
|
|
{
|
|
ERR("%s\n", str);
|
|
return 0;
|
|
}
|