61 lines
3.2 KiB
JavaScript
61 lines
3.2 KiB
JavaScript
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const fs=require("fs");
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const JSZip=require("jszip");
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const {XMLParser}=require("fast-xml-parser");
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const arrify=(v)=>Array.isArray(v)?v:(v==null?[]:[v]);
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const safeText=(v)=>typeof v==='string'&&v.trim()?v.trim():(v&&typeof v==='object'&&v.PlainText?String(v.PlainText).trim():"未命名节点");
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const pickUid=(obj)=>Object.entries(obj||{}).find(([k,v])=>['OId','Guid','ID','Id','uid'].includes(k)&&typeof v==='string'&&v.trim())?.[1]||`node_${Math.random().toString(16).slice(2)}`;
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const parseUri=(input)=>{if(typeof input==='string') return input.trim(); if(input && typeof input==='object' && '#text' in input && typeof input['#text']==='string') return input['#text'].trim(); return null;};
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async function parse(buf){
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const zip=await JSZip.loadAsync(buf);
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const xml=await zip.file('Document.xml').async('text');
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const parser=new XMLParser({ignoreAttributes:false,removeNSPrefix:true,attributeNamePrefix:''});
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const parsed=parser.parse(xml);
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const rootTopic=(parsed.Map?.OneTopic?.Topic)||parsed.OneTopic?.Topic||parsed.Topic;
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const root=Array.isArray(rootTopic)?rootTopic[0]:rootTopic;
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const uriSet=new Set();
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(function collect(node){
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if(!node||typeof node!=='object') return;
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const images=[...arrify(node.OneImage), ...arrify(node.Image)];
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images.forEach(img=>{
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const uri=parseUri(img?.Image?.ImageData?.Uri ?? img?.ImageData?.Uri ?? img?.Uri);
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if(uri) uriSet.add(uri);
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});
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const children=(arrify(node.SubTopics?.Topic)||arrify(node.Topics?.Topic)||arrify(node.Topic));
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children.forEach(collect);
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})(root);
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const uriData=new Map();
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const detectMime=(b)=> b.slice(0,8).equals(Buffer.from([0x89,0x50,0x4e,0x47,0x0d,0x0a,0x1a,0x0a]))?'image/png':b.slice(0,3).equals(Buffer.from([0xff,0xd8,0xff]))?'image/jpeg':b.slice(0,2).equals(Buffer.from([0x42,0x4d]))?'image/bmp':'application/octet-stream';
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for(const uri of uriSet){
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const path=uri.startsWith('mmarch://')?uri.replace('mmarch://',''):uri;
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const file=zip.file(path);
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if(!file) continue;
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const bin=await file.async('nodebuffer');
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const mime=detectMime(bin);
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uriData.set(uri,{url:`data:${mime};base64,${bin.toString('base64')}`});
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}
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const conv=(node)=>{
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const data={text:safeText(node?.Text??node?.text)};
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const images=[...arrify(node?.OneImage), ...arrify(node?.Image)];
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if(images.length){
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const first=images[0];
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const uri=parseUri(first?.Image?.ImageData?.Uri ?? first?.ImageData?.Uri ?? first?.Uri);
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const size=first?.Image?.ImageSize||first?.ImageSize;
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if(uri && uriData.has(uri)){
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data.image=uriData.get(uri).url;
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if(size?.Width||size?.Height){
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data.imageSize={width:Number(size.Width)||0,height:Number(size.Height)||0,custom:true};
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}
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}
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}
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const kids=(arrify(node?.SubTopics?.Topic)||arrify(node?.Topics?.Topic)||arrify(node?.Topic)).map(conv);
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return {uid:pickUid(node||{}), data, children:kids};
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};
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return conv(root);
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}
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(async()=>{
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const root=await parse(fs.readFileSync('..\\design\\导图1.mmap'));
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const imgs=[];const walk=(n)=>{if(n.data.image) imgs.push(n.data.image.slice(0,40));(n.children||[]).forEach(walk)};walk(root);
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console.log('image count', imgs.length);
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console.log('sample', imgs[0]?.slice(0,80));
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})();
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