package utils

import (
	"regexp"
	"strings"
)

func StripTags(s string) string  {

	//将HTML标签全转换成小写
	re, _ := regexp.Compile("\\<[\\S\\s]+?\\>")
	src := re.ReplaceAllStringFunc(s, strings.ToLower)

	//去除STYLE
	re, _ = regexp.Compile("\\<style[\\S\\s]+?\\</style\\>")
	src = re.ReplaceAllString(src, "")

	//去除SCRIPT
	re, _ = regexp.Compile("\\<script[\\S\\s]+?\\</script\\>")
	src = re.ReplaceAllString(src, "")

	//去除所有尖括号内的HTML代码，并换成换行符
	re, _ = regexp.Compile("\\<[\\S\\s]+?\\>")
	src = re.ReplaceAllString(src, "\n")

	//去除连续的换行符
	re, _ = regexp.Compile("\\s{2,}")
	src = re.ReplaceAllString(src, "\n")

	return src
}