移动端处理富文本的JS代码

忘记出处，有侵权联系。
/**

* 处理富文本里的图片宽度自适应

* 1.去掉img标签里的style、width、height属性

* 2.img标签添加style属性：max-width:100%;height:auto

* 3.修改所有style里的width属性为max-width:100%

* 4.去掉<br/>标签

* @param html

* @returns {void|string|*}

*/

function formatRichText(html){

let newContent= html.replace(/<img[^>]*>/gi,function(match,capture){

match = match.replace(/style="[^"]+"/gi, '').replace(/style='[^']+'/gi, '');

match = match.replace(/width="[^"]+"/gi, '').replace(/width='[^']+'/gi, '');

match = match.replace(/height="[^"]+"/gi, '').replace(/height='[^']+'/gi, '');

return match;

});

newContent = newContent.replace(/style="[^"]+"/gi,function(match,capture){

match = match.replace(/width:[^;]+;/gi, 'max-width:100%;').replace(/width:[^;]+;/gi, 'max-width:100%;');

return match;

});

newContent = newContent.replace(/<br[^>]*\/>/gi, '');

newContent = newContent.replace(/\<img/gi, '<img style="max-width:100%;height:auto;display:block;margin-top:0;margin-bottom:0;"');

return newContent;

}

module.exports = {

formatRichText

}