Zabbix

/*

** Zabbix

** Copyright (C) 2001-2023 Zabbix SIA

**

** This program is free software; you can redistribute it and/or modify

** it under the terms of the GNU General Public License as published by

** the Free Software Foundation; either version 2 of the License, or

** (at your option) any later version.

**

** This program 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 General Public License for more details.

**

** You should have received a copy of the GNU General Public License

** along with this program; if not, write to the Free Software

** Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.

**/

​

#include "zbxexpr.h"

​

/******************************************************************************

 *                                                                            *

 * Purpose: parses user macro token                                           *

 *                                                                            *

 * Parameters: expression - [IN] the expression                               *

 *             macro      - [IN] the beginning of the token                   *

 *             token      - [OUT] the token data                              *

 *                                                                            *

 * Return value: SUCCEED - the user macro was parsed successfully             *

 *               FAIL    - macro does not point at valid user macro           *

 *                                                                            *

 * Comments: If the macro points at valid user macro in the expression then   *

 *           the generic token fields are set and the token->data.user_macro  *

 *           structure is filled with user macro specific data.               *

 *                                                                            *

 ******************************************************************************/

static int  token_parse_user_macro(const char *expression, const char *macro, zbx_token_t *token)

{

    size_t          offset;

    int         macro_r, context_l, context_r;

    zbx_token_user_macro_t  *data;

​

    if (SUCCEED != zbx_user_macro_parse(macro, &macro_r, &context_l, &context_r, NULL))

        return FAIL;

​

    offset = macro - expression;

​

    /* initialize token */

    token->type = ZBX_TOKEN_USER_MACRO;

    token->loc.l = offset;

    token->loc.r = offset + macro_r;

​

    /* initialize token data */

    data = &token->data.user_macro;

    data->name.l = offset + 2;

​

    if (0 != context_l)

    {

        const char *ptr = macro + context_l;

​

        /* find the context separator ':' by stripping spaces before context */

        while (' ' == *(--ptr))