forked from codeskyblue/gobuild
/
html.go
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/
html.go
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// Copyright 2013 com authors
//
// Licensed under the Apache License, Version 2.0 (the "License"): you may
// not use this file except in compliance with the License. You may obtain
// a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
// WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
// License for the specific language governing permissions and limitations
// under the License.
package com
import (
"html"
"regexp"
"strings"
)
// Html2JS converts []byte type of HTML content into JS format.
func Html2JS(data []byte) []byte {
s := string(data)
s = strings.Replace(s, `\`, `\\`, -1)
s = strings.Replace(s, "\n", `\n`, -1)
s = strings.Replace(s, "\r", "", -1)
s = strings.Replace(s, "\"", `\"`, -1)
return []byte(s)
}
// encode html chars to string
func HtmlEncode(str string) string {
return html.EscapeString(str)
}
// decode string to html chars
func HtmlDecode(str string) string {
return html.UnescapeString(str)
}
// strip tags in html string
func StripTags(src string) string {
//将HTML标签全转换成小写
re, _ := regexp.Compile("\\<[\\S\\s]+?\\>")
src = re.ReplaceAllStringFunc(src, 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 strings.TrimSpace(src)
}
// change \n to <br/>
func Nl2br(str string) string {
return strings.Replace(str, "\n", "<br/>", -1)
}