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.

**/

​

package file

​

import (

    "bufio"

    "errors"

    "fmt"

    "math"

    "regexp"

    "strconv"

    "time"

​

    "zabbix.com/pkg/zbxregexp"

)

​

func (p *Plugin) exportRegexp(params []string) (result interface{}, err error) {

    var startline, endline, curline uint64

​

    start := time.Now()

​

    if len(params) > 6 {

        return nil, errors.New("Too many parameters.")

    }

    if len(params) < 1 || "" == params[0] {

        return nil, errors.New("Invalid first parameter.")

    }

    if len(params) < 2 || "" == params[1] {

        return nil, errors.New("Invalid second parameter.")

    }

​

    var encoder string

    if len(params) > 2 {

        encoder = params[2]

    }

​

    if len(params) < 4 || "" == params[3] {

        startline = 0

    } else {

        startline, err = strconv.ParseUint(params[3], 10, 32)

        if err != nil {

            return nil, errors.New("Invalid fourth parameter.")

        }

    }

    if len(params) < 5 || "" == params[4] {

        endline = math.MaxUint64