Parse sst json to md.

sst-json-parse.js

var util =require('util');
var fs = require('fs');
var urlencode = require('urlencode');

function init() {
     fs.writeFileSync('test.md', '# SST 2017\n\n');
 } 

function append(str) {
     fs.appendFileSync('test.md', str);
 }



function tryAlias(owner) {
    if(owner.hasOwnProperty('alias'))
        return owner['alias']
    else
        return owner['name']
 }


function escapeNewLineInAComment(text) {
    return text.replace(/\n/g, '\\n');
}

function handleHashtagAndUrl(text) {
    new_text = '';

    text = text.split(/<e type=\"hashtag\" |<e type=\"web\" /);
    for (var t = 0; t < text.length; t++){
        line = text[t];
        // if(line != '' && line != ' ' && line != '  '){
        // console.log("--------", line)
        if(line.includes('hid=')){
            hashtag = line.match('title=\"(.+?)\"');
            hashtag = urlencode.decode(hashtag[1], 'utf8');
            hashtag = util.format('__%s__\n', hashtag);
            new_text += hashtag;
            new_text += '\n';
            line = line.substring(line.indexOf('/>')+2);
            // console.log("++++++++", line)
            new_text += extractMention(line);
            new_text += '\n';
        }else if(line.includes('href=')){
            title = line.match('title=\"(.+?)\"');
            title = urlencode.decode(title[1], 'utf8');
            title = title.replace(/\+/g, ' ');
            url  = line.match('href=\"(.+?)\"');
            url = urlencode.decode(url[1], 'utf8');
            url = util.format('[%s](%s)\n', title,url);
            new_text += url
            new_text += '\n'
            line = line.substring(line.indexOf('/>')+2);
            // console.log("++++++++", line)
            new_text += extractMention(line);
            new_text += '\n';
        }else{
            // console.log("++++++++", line)
            new_text += extractMention(line)
            new_text += '\n'
        }
        // }
    }

    // console.log(new_text)
    return new_text
 }


function extractMention(line) {
    new_line = '';
    parts = line.split(/<e type=\"mention\" /);
    for (var p = 0; p < parts.length; p++){
        part = parts[p];
        if(part.includes('title=')){
            mention = part.match('title=\"(.+?)\"');
            mention = urlencode.decode(mention[1], 'utf8');
            new_line += mention;
            new_line += part.substring(part.indexOf('/>')+2);
        }else{
            new_line += part;
        }
    }
    return new_line
}


function appendContent(content) {
    if(content.hasOwnProperty('text')){
                append(util.format('%s\n', 
                        handleHashtagAndUrl(content['text'])));
            }
    if(content.hasOwnProperty('images')){
        for(var m = 0; m < content['images'].length; m++) {
            img = content['images'][m]
            append(util.format('<img src="%s" width="50%" height="50%" align="middle"/>\n', 
                    img['large']['url']));
        }                    
    }
    if(content.hasOwnProperty('files')){
        append('\n__分享文件:__\n');
        for(var f = 0; f < content['files'].length; f++) {
            file = content['files'][f]
            append(util.format('[%s](%s)\n', file['name'], 'fileulrxxxxxxxxxxxxxxxxxxxfileulr'));
        }
    }
}





var json = require('./raw.json');
init();

for(var i = 0; i < json.length; i++) {
// for(var i = 0; i < 3; i++) {
    
    var j = json[i];

    if(!([15288854518512, 51118552582544, 48412842412188, 15525241224552].includes(j['topic_id']))){
        switch(j['type']){
            case "talk":
                talk = j['talk']
                append(util.format('<img src="%s" width="25px"/> __%s__ on %s:\n\n', 
                        talk['owner']['avatar_url'], 
                        tryAlias(talk['owner']), 
                        // talk['owner']['name'], 
                        j['create_time'].substring(0,10)));
                        appendContent(talk);
                
                break;

            case "q&a":
                if(j.hasOwnProperty('answer')){
                    question = j['question'];
                    answer = j['answer'];
                    append(util.format('<img src="%s" width="25px"/> __%s__ on %s:\n\n', 
                            answer['owner']['avatar_url'], 
                            tryAlias(answer['owner']), 
                            // talk['owner']['name'], 
                            j['create_time'].substring(0,10)));
                    if(question["anonymous"] == true){
                        append('> 匿名用户');
                    }else{
                        append(util.format('> %s', tryAlias(question['owner'])));
                    }
                    append(util.format(' 提问：\n%s\n\n', handleHashtagAndUrl(question['text'])));

                    appendContent(answer);
                }
                break;

            default:
                break;
        }

        append('\n');

        if(j['comments_count']>0){
            append('</br>');
            for(var c = 0; c < j['show_comments'].length; c++) {
                cmt = j['show_comments'][c]
                if(cmt.hasOwnProperty('repliee')){
                    append(util.format('<img src="%s" width="25px"/> __%s__ to <img src="%s" width="25px"/> __%s__: %s\n', 
                                cmt['owner']['avatar_url'], 
                                tryAlias(cmt['owner']), 
                                // cmt['owner']['name'], 
                                cmt['repliee']['avatar_url'],
                                tryAlias(cmt['repliee']),  
                                // cmt['repliee']['name'], 
                                // handleHashtagAndUrl(escapeNewLineInAComment(cmt['text']))));
                                handleHashtagAndUrl(cmt['text'])));
                }else{
                    append(util.format('<img src="%s" width="25px"/> __%s__: %s\n', 
                                cmt['owner']['avatar_url'], 
                                tryAlias(cmt['owner']), 
                                // cmt['owner']['name'], 
                                handleHashtagAndUrl(cmt['text'])));
                                // handleHashtagAndUrl(escapeNewLineInAComment(cmt['text']))));
                }
            }
        }

        append('\n---\n\n')
    }
}