package gcs

import (
	"fmt"
	"strings"

	"gitee.com/liumou_site/gbm"
)

// Grep 通过关键词筛选所有匹配行
func (api *ApiShell) Grep(match string) *ApiShell {
	api.gfs.Text = api.Strings
	api.gfs.Grep(match)
	api.Strings = api.gfs.Text
	api.Err = api.gfs.Err
	r := strings.Split(api.Strings, "\n")
	api.Slice = gbm.SliceRemoveNull(r)
	api.Err = api.gfs.Err
	return api
}

// Echo 打印命令执行反馈信息
func (api *ApiShell) Echo() {
	fmt.Println(api.Strings)
}

// Line 截取指定行
func (api *ApiShell) Line(n int) *ApiShell {
	api.gfs.Text = api.Strings
	api.gfs.Line(n)
	api.Strings = api.gfs.Text
	api.Err = api.gfs.Err
	return api
}

// Column 截取指定列
func (api *ApiShell) Column(col int, sep string) *ApiShell {
	api.gfs.Text = api.Strings
	api.gfs.Column(col, sep)
	api.Strings = api.gfs.Text
	api.Err = api.gfs.Err
	return api
}