304 lines
9.9 KiB
JavaScript
304 lines
9.9 KiB
JavaScript
|
/**
|
||
|
|
* html2Json 改造来自: https://github.com/Jxck/html2json
|
||
|
|
*
|
||
|
|
*
|
||
|
|
* author: Di (微信小程序开发工程师)
|
||
|
|
* organization: WeAppDev(微信小程序开发论坛)(http://weappdev.com)
|
||
|
|
* 垂直微信小程序开发交流社区
|
||
|
|
*
|
||
|
|
* github地址: https://github.com/icindy/wxParse
|
||
|
|
*
|
||
|
|
* for: 微信小程序富文本解析
|
||
|
|
* detail : http://weappdev.com/t/wxparse-alpha0-1-html-markdown/184
|
||
|
|
*/
|
||
|
|
|
||
|
|
var __placeImgeUrlHttps = "https";
|
||
|
|
var __emojisReg = '';
|
||
|
|
var __emojisBaseSrc = '';
|
||
|
|
var __emojis = {};
|
||
|
|
var wxDiscode = require('./wxDiscode.js');
|
||
|
|
var HTMLParser = require('./htmlparser.js');
|
||
|
|
// Empty Elements - HTML 5
|
||
|
|
var empty = makeMap("area,base,basefont,br,col,frame,hr,img,input,link,meta,param,embed,command,keygen,source,track,wbr");
|
||
|
|
// Block Elements - HTML 5
|
||
|
|
var block = makeMap("br,a,code,address,article,applet,aside,audio,blockquote,button,canvas,center,dd,del,dir,div,dl,dt,fieldset,figcaption,figure,footer,form,frameset,h1,h2,h3,h4,h5,h6,header,hgroup,hr,iframe,ins,isindex,li,map,menu,noframes,noscript,object,ol,output,p,pre,section,script,table,tbody,td,tfoot,th,thead,tr,ul,video");
|
||
|
|
|
||
|
|
// Inline Elements - HTML 5
|
||
|
|
var inline = makeMap("abbr,acronym,applet,b,basefont,bdo,big,button,cite,del,dfn,em,font,i,iframe,img,input,ins,kbd,label,map,object,q,s,samp,script,select,small,span,strike,strong,sub,sup,textarea,tt,u,var");
|
||
|
|
|
||
|
|
// Elements that you can, intentionally, leave open
|
||
|
|
// (and which close themselves)
|
||
|
|
var closeSelf = makeMap("colgroup,dd,dt,li,options,p,td,tfoot,th,thead,tr");
|
||
|
|
|
||
|
|
// Attributes that have their values filled in disabled="disabled"
|
||
|
|
var fillAttrs = makeMap("checked,compact,declare,defer,disabled,ismap,multiple,nohref,noresize,noshade,nowrap,readonly,selected");
|
||
|
|
|
||
|
|
// Special Elements (can contain anything)
|
||
|
|
var special = makeMap("wxxxcode-style,script,style,view,scroll-view,block");
|
||
|
|
function makeMap(str) {
|
||
|
|
var obj = {}, items = str.split(",");
|
||
|
|
for (var i = 0; i < items.length; i++)
|
||
|
|
obj[items[i]] = true;
|
||
|
|
return obj;
|
||
|
|
}
|
||
|
|
|
||
|
|
function q(v) {
|
||
|
|
return '"' + v + '"';
|
||
|
|
}
|
||
|
|
|
||
|
|
function removeDOCTYPE(html) {
|
||
|
|
return html
|
||
|
|
.replace(/<\?xml.*\?>\n/, '')
|
||
|
|
.replace(/<.*!doctype.*\>\n/, '')
|
||
|
|
.replace(/<.*!DOCTYPE.*\>\n/, '');
|
||
|
|
}
|
||
|
|
|
||
|
|
function trimHtml(html) {
|
||
|
|
return html
|
||
|
|
.replace(/\r?\n+/g, '')
|
||
|
|
.replace(/<!--.*?-->/ig, '')
|
||
|
|
.replace(/\/\*.*?\*\//ig, '')
|
||
|
|
.replace(/[ ]+</ig, '<')
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
function html2json(html, bindName) {
|
||
|
|
//处理字符串
|
||
|
|
html = removeDOCTYPE(html);
|
||
|
|
html = trimHtml(html);
|
||
|
|
html = wxDiscode.strDiscode(html);
|
||
|
|
//生成node节点
|
||
|
|
var bufArray = [];
|
||
|
|
var results = {
|
||
|
|
node: bindName,
|
||
|
|
nodes: [],
|
||
|
|
images:[],
|
||
|
|
imageUrls:[]
|
||
|
|
};
|
||
|
|
var index = 0;
|
||
|
|
HTMLParser(html, {
|
||
|
|
start: function (tag, attrs, unary) {
|
||
|
|
//debug(tag, attrs, unary);
|
||
|
|
// node for this element
|
||
|
|
var node = {
|
||
|
|
node: 'element',
|
||
|
|
tag: tag,
|
||
|
|
};
|
||
|
|
|
||
|
|
if (bufArray.length === 0) {
|
||
|
|
node.index = index.toString()
|
||
|
|
index += 1
|
||
|
|
} else {
|
||
|
|
var parent = bufArray[0];
|
||
|
|
if (parent.nodes === undefined) {
|
||
|
|
parent.nodes = [];
|
||
|
|
}
|
||
|
|
node.index = parent.index + '.' + parent.nodes.length
|
||
|
|
}
|
||
|
|
|
||
|
|
if (block[tag]) {
|
||
|
|
node.tagType = "block";
|
||
|
|
} else if (inline[tag]) {
|
||
|
|
node.tagType = "inline";
|
||
|
|
} else if (closeSelf[tag]) {
|
||
|
|
node.tagType = "closeSelf";
|
||
|
|
}
|
||
|
|
|
||
|
|
if (attrs.length !== 0) {
|
||
|
|
node.attr = attrs.reduce(function (pre, attr) {
|
||
|
|
var name = attr.name;
|
||
|
|
var value = attr.value;
|
||
|
|
if (name == 'class') {
|
||
|
|
console.dir(value);
|
||
|
|
// value = value.join("")
|
||
|
|
node.classStr = value;
|
||
|
|
}
|
||
|
|
// has multi attibutes
|
||
|
|
// make it array of attribute
|
||
|
|
if (name == 'style') {
|
||
|
|
console.dir(value);
|
||
|
|
// value = value.join("")
|
||
|
|
node.styleStr = value;
|
||
|
|
}
|
||
|
|
if (value.match(/ /)) {
|
||
|
|
value = value.split(' ');
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
// if attr already exists
|
||
|
|
// merge it
|
||
|
|
if (pre[name]) {
|
||
|
|
if (Array.isArray(pre[name])) {
|
||
|
|
// already array, push to last
|
||
|
|
pre[name].push(value);
|
||
|
|
} else {
|
||
|
|
// single value, make it array
|
||
|
|
pre[name] = [pre[name], value];
|
||
|
|
}
|
||
|
|
} else {
|
||
|
|
// not exist, put it
|
||
|
|
pre[name] = value;
|
||
|
|
}
|
||
|
|
|
||
|
|
return pre;
|
||
|
|
}, {});
|
||
|
|
}
|
||
|
|
|
||
|
|
//对img添加额外数据
|
||
|
|
if (node.tag === 'img') {
|
||
|
|
node.imgIndex = results.images.length;
|
||
|
|
var imgUrl = node.attr.src;
|
||
|
|
if (imgUrl[0] == '') {
|
||
|
|
imgUrl.splice(0, 1);
|
||
|
|
}
|
||
|
|
imgUrl = wxDiscode.urlToHttpUrl(imgUrl, __placeImgeUrlHttps);
|
||
|
|
node.attr.src = imgUrl;
|
||
|
|
node.from = bindName;
|
||
|
|
results.images.push(node);
|
||
|
|
results.imageUrls.push(imgUrl);
|
||
|
|
}
|
||
|
|
|
||
|
|
// 处理font标签样式属性
|
||
|
|
if (node.tag === 'font') {
|
||
|
|
var fontSize = ['x-small', 'small', 'medium', 'large', 'x-large', 'xx-large', '-webkit-xxx-large'];
|
||
|
|
var styleAttrs = {
|
||
|
|
'color': 'color',
|
||
|
|
'face': 'font-family',
|
||
|
|
'size': 'font-size'
|
||
|
|
};
|
||
|
|
if (!node.attr.style) node.attr.style = [];
|
||
|
|
if (!node.styleStr) node.styleStr = '';
|
||
|
|
for (var key in styleAttrs) {
|
||
|
|
if (node.attr[key]) {
|
||
|
|
var value = key === 'size' ? fontSize[node.attr[key]-1] : node.attr[key];
|
||
|
|
node.attr.style.push(styleAttrs[key]);
|
||
|
|
node.attr.style.push(value);
|
||
|
|
node.styleStr += styleAttrs[key] + ': ' + value + ';';
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
//临时记录source资源
|
||
|
|
if(node.tag === 'source'){
|
||
|
|
results.source = node.attr.src;
|
||
|
|
}
|
||
|
|
|
||
|
|
if (unary) {
|
||
|
|
// if this tag doesn't have end tag
|
||
|
|
// like <img src="hoge.png"/>
|
||
|
|
// add to parents
|
||
|
|
var parent = bufArray[0] || results;
|
||
|
|
if (parent.nodes === undefined) {
|
||
|
|
parent.nodes = [];
|
||
|
|
}
|
||
|
|
parent.nodes.push(node);
|
||
|
|
} else {
|
||
|
|
bufArray.unshift(node);
|
||
|
|
}
|
||
|
|
},
|
||
|
|
end: function (tag) {
|
||
|
|
//debug(tag);
|
||
|
|
// merge into parent tag
|
||
|
|
var node = bufArray.shift();
|
||
|
|
if (node.tag !== tag) console.error('invalid state: mismatch end tag');
|
||
|
|
|
||
|
|
//当有缓存source资源时于于video补上src资源
|
||
|
|
if(node.tag === 'video' && results.source){
|
||
|
|
node.attr.src = results.source;
|
||
|
|
delete results.source;
|
||
|
|
}
|
||
|
|
|
||
|
|
if (bufArray.length === 0) {
|
||
|
|
results.nodes.push(node);
|
||
|
|
} else {
|
||
|
|
var parent = bufArray[0];
|
||
|
|
if (parent.nodes === undefined) {
|
||
|
|
parent.nodes = [];
|
||
|
|
}
|
||
|
|
parent.nodes.push(node);
|
||
|
|
}
|
||
|
|
},
|
||
|
|
chars: function (text) {
|
||
|
|
//debug(text);
|
||
|
|
var node = {
|
||
|
|
node: 'text',
|
||
|
|
text: text,
|
||
|
|
textArray:transEmojiStr(text)
|
||
|
|
};
|
||
|
|
|
||
|
|
if (bufArray.length === 0) {
|
||
|
|
node.index = index.toString()
|
||
|
|
index += 1
|
||
|
|
results.nodes.push(node);
|
||
|
|
} else {
|
||
|
|
var parent = bufArray[0];
|
||
|
|
if (parent.nodes === undefined) {
|
||
|
|
parent.nodes = [];
|
||
|
|
}
|
||
|
|
node.index = parent.index + '.' + parent.nodes.length
|
||
|
|
parent.nodes.push(node);
|
||
|
|
}
|
||
|
|
},
|
||
|
|
comment: function (text) {
|
||
|
|
//debug(text);
|
||
|
|
// var node = {
|
||
|
|
// node: 'comment',
|
||
|
|
// text: text,
|
||
|
|
// };
|
||
|
|
// var parent = bufArray[0];
|
||
|
|
// if (parent.nodes === undefined) {
|
||
|
|
// parent.nodes = [];
|
||
|
|
// }
|
||
|
|
// parent.nodes.push(node);
|
||
|
|
},
|
||
|
|
});
|
||
|
|
return results;
|
||
|
|
};
|
||
|
|
|
||
|
|
function transEmojiStr(str){
|
||
|
|
// var eReg = new RegExp("["+__reg+' '+"]");
|
||
|
|
// str = str.replace(/\[([^\[\]]+)\]/g,':$1:')
|
||
|
|
|
||
|
|
var emojiObjs = [];
|
||
|
|
//如果正则表达式为空
|
||
|
|
if(__emojisReg.length == 0 || !__emojis){
|
||
|
|
var emojiObj = {}
|
||
|
|
emojiObj.node = "text";
|
||
|
|
emojiObj.text = str;
|
||
|
|
array = [emojiObj];
|
||
|
|
return array;
|
||
|
|
}
|
||
|
|
//这个地方需要调整
|
||
|
|
str = str.replace(/\[([^\[\]]+)\]/g,':$1:')
|
||
|
|
var eReg = new RegExp("[:]");
|
||
|
|
var array = str.split(eReg);
|
||
|
|
for(var i = 0; i < array.length; i++){
|
||
|
|
var ele = array[i];
|
||
|
|
var emojiObj = {};
|
||
|
|
if(__emojis[ele]){
|
||
|
|
emojiObj.node = "element";
|
||
|
|
emojiObj.tag = "emoji";
|
||
|
|
emojiObj.text = __emojis[ele];
|
||
|
|
emojiObj.baseSrc= __emojisBaseSrc;
|
||
|
|
}else{
|
||
|
|
emojiObj.node = "text";
|
||
|
|
emojiObj.text = ele;
|
||
|
|
}
|
||
|
|
emojiObjs.push(emojiObj);
|
||
|
|
}
|
||
|
|
|
||
|
|
return emojiObjs;
|
||
|
|
}
|
||
|
|
|
||
|
|
function emojisInit(reg='',baseSrc="/wxParse/emojis/",emojis){
|
||
|
|
__emojisReg = reg;
|
||
|
|
__emojisBaseSrc=baseSrc;
|
||
|
|
__emojis=emojis;
|
||
|
|
}
|
||
|
|
|
||
|
|
module.exports = {
|
||
|
|
html2json: html2json,
|
||
|
|
emojisInit:emojisInit
|
||
|
|
};
|
||
|
|
|