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html5Parser.js
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279 lines (239 loc) · 10.5 KB
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function makeMap(str) {
var obj = {}, items = str.split(",");
for (var i = 0; i < items.length; i++)
obj[items[i]] = true;
return obj;
}
// Regular Expressions for parsing tags and attributes
// var startTag = /^<([-A-Za-z0-9_]+)((?:\s+[a-zA-Z_:][-a-zA-Z0-9_:.]*(?:\s*=\s*(?:(?:"[^"]*")|(?:'[^']*')|[^>\s]+))?)*)\s*(\/?)>/, // liufh 注释 2022-8-3
var startTag = /^<([-A-Za-z0-9_]+)((?:\s+[a-zA-Z_:@][-a-zA-Z0-9_:.]*(?:\s*=\s*(?:(?:"[^"]*")|(?:'[^']*')|[^>\s]+))?)*)\s*(\/?)>/, // liufh 添加 @ 符号的支持，vue需要类似 @click 的属性 2022-8-3
endTag = /^<\/([-A-Za-z0-9_]+)[^>]*>/,
// attr = /([a-zA-Z_:][-a-zA-Z0-9_:.]*)(?:\s*=\s*(?:(?:"((?:\\.|[^"])*)")|(?:'((?:\\.|[^'])*)')|([^>\s]+)))?/g; // liufh 注释 2022-8-3
attr = /([a-zA-Z_:@][-a-zA-Z0-9_:.]*)(?:\s*=\s*(?:(?:"((?:\\.|[^"])*)")|(?:'((?:\\.|[^'])*)')|([^>\s]+)))?/g; // liufh 添加 @ 符号的支持，vue需要类似 @click 的属性 2022-8-3
// 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("a,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,br,button,cite,code,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("script,style");
var HTMLParser = function (html, handler) {
var index, chars, match, stack = [], last = html;
stack.last = function () {
return this[this.length - 1];
};
while (html) {
chars = true;
// Make sure we're not in a script or style element
if (!stack.last() || !special[stack.last()]) {
// Comment
if (html.indexOf("<!--") == 0) {
index = html.indexOf("-->");
if (index >= 0) {
if (handler.comment)
handler.comment(html.substring(4, index));
html = html.substring(index + 3);
chars = false;
}
// end tag
} else if (html.indexOf("</") == 0) {
match = html.match(endTag);
if (match) {
html = html.substring(match[0].length);
match[0].replace(endTag, parseEndTag);
chars = false;
}
// start tag
} else if (html.indexOf("<") == 0) {
console.log(html);
match = html.match(startTag);
if (html.indexOf('@') !== -1) {
console.log();
}
if (match) {
html = html.substring(match[0].length);
match[0].replace(startTag, parseStartTag);
chars = false;
}
}
if (chars) {
index = html.indexOf("<");
var text = index < 0 ? html : html.substring(0, index);
html = index < 0 ? "" : html.substring(index);
if (handler.chars)
handler.chars(text);
}
} else {
html = html.replace(new RegExp("([\\s\\S]*?)<\/" + stack.last() + "[^>]*>"), function (all, text) {
if (text.indexOf('@') !== -1) {
console.log();
}
text = text.replace(/<!--([\s\S]*?)-->|<!\[CDATA\[([\s\S]*?)]]>/g, "$1$2");
if (handler.chars)
handler.chars(text);
return "";
});
parseEndTag("", stack.last());
}
if (html == last)
throw "Parse Error: " + html;
last = html;
}
// Clean up any remaining tags
parseEndTag();
function parseStartTag(tag, tagName, rest, unary) {
tagName = tagName.toLowerCase();
if (block[tagName]) {
while (stack.last() && inline[stack.last()]) {
parseEndTag("", stack.last());
}
}
if (closeSelf[tagName] && stack.last() == tagName) {
parseEndTag("", tagName);
}
unary = empty[tagName] || !!unary;
if (!unary)
stack.push(tagName);
if (handler.start) {
var attrs = [];
rest.replace(attr, function (match, name) {
var value = arguments[2] ? arguments[2] :
arguments[3] ? arguments[3] :
arguments[4] ? arguments[4] :
fillAttrs[name] ? name : "";
attrs.push({
name: name,
value: value,
escaped: value.replace(/(^|[^\\])"/g, '$1\\\"') //"
});
});
if (handler.start)
handler.start(tagName, attrs, unary);
}
}
function parseEndTag(tag, tagName) {
if (tagName !== undefined) tagName = tagName.toLowerCase();
// If no tag name is provided, clean shop
if (!tagName)
var pos = 0;
// Find the closest opened tag of the same type
else
for (var pos = stack.length - 1; pos >= 0; pos--)
if (stack[pos] == tagName)
break;
if (pos >= 0) {
// Close all the open elements, up the stack
for (var i = stack.length - 1; i >= pos; i--)
if (handler.end)
handler.end(stack[i]);
// Remove the open elements from the stack
stack.length = pos;
}
}
};
module.exports = function (htmlStr) {
const result = {};
// var htmlStr = `
// <el-form ref="form" :model="form" label-width="80px">
// <el-form-item label="活动名称">
// <el-input v-model="form.name"></el-input>
// </el-form-item>
// <el-form-item label="活动区域">
// <el-select v-model="form.region" placeholder="请选择活动区域">
// <el-option label="区域一" value="shanghai"></el-option>
// <el-option label="区域二" value="beijing"></el-option>
// </el-select>
// </el-form-item>
// <el-form-item label="活动时间">
// <el-col :span="11">
// <el-date-picker type="date" placeholder="选择日期" v-model="form.date1" style="width: 100%;"></el-date-picker>
// </el-col>
// <el-col class="line" :span="2">-</el-col>
// <el-col :span="11">
// <el-time-picker placeholder="选择时间" v-model="form.date2" style="width: 100%;"></el-time-picker>
// </el-col>
// </el-form-item>
// <el-form-item label="即时配送">
// <el-switch v-model="form.delivery"></el-switch>
// </el-form-item>
// <el-form-item label="活动性质">
// <el-checkbox-group v-model="form.type">
// <el-checkbox label="美食/餐厅线上活动" name="type"></el-checkbox>
// <el-checkbox label="地推活动" name="type"></el-checkbox>
// <el-checkbox label="线下主题活动" name="type"></el-checkbox>
// <el-checkbox label="单纯品牌曝光" name="type"></el-checkbox>
// </el-checkbox-group>
// </el-form-item>
// <el-form-item label="特殊资源">
// <el-radio-group v-model="form.resource">
// <el-radio label="线上品牌商赞助"></el-radio>
// <el-radio label="线下场地免费"></el-radio>
// </el-radio-group>
// </el-form-item>
// <el-form-item label="活动形式">
// <el-input type="textarea" v-model="form.desc"></el-input>
// </el-form-item>
// <el-form-item>
// <el-button type="primary" @click="onSubmit">立即创建</el-button>
// <el-button>取消</el-button>
// </el-form-item>
// </el-form>
// `;
var parentTagObj;
var curTagValueArr;
var filoObjArr = []; // first in last out array
var isEndOfTag = true;
HTMLParser(htmlStr, {
start: function (tag, attrs, unary) {
var tag_obj;
isEndOfTag = false;
if (filoObjArr.length === 0) {
tag_obj = result;
tag_obj[tag] = [];
filoObjArr.push(tag_obj);
curTagValueArr = tag_obj[tag];
}
else {
tag_obj = {};
tag_obj[tag] = [];
filoObjArr.push(tag_obj);
curTagValueArr.push(tag_obj);
curTagValueArr = tag_obj[tag];
}
for (var i = 0; i < attrs.length; i++) {
const attr_obj = {};
const attr = attrs[i];
attr_obj['$' + attr.name] = attr.value;
curTagValueArr.push(attr_obj);
}
},
end: function (tag) {
filoObjArr.pop();
const last_index = filoObjArr.length - 1;
if (last_index < 0) {
return;
}
const obj = filoObjArr[last_index];
curTagValueArr = Object.values(obj)[0];
isEndOfTag = true;
},
chars: function (text) {
console.log(text);
if (isEndOfTag) { //&& (text==='\n' || !curTagValueArr || /^\x20+$/g.test(text) ) ) {
return;
}
curTagValueArr.push({ $innerText: text });
},
comment: function (text) {
console.log(text);
}
});
console.log(result);
return result;
};