confirm_merge.js

#!/usr/bin/env node

const fs = require('fs');

let hash = {},
    schools = fs.readFileSync('data/school.txt', 'utf8').trim().split('\n');

for (let [idx, line] of schools.entries()) {
    line = line.trim();
    if (!line.length || line[0] === '#') continue;
    hash[line.split(',')[2]] = idx;
}
let n = schools.length;

let data = fs.readFileSync('dist/merge_preview.txt', 'utf8').split('\n');

for (let line of data) {
    line = line.trim();
    if (!line.length || line[0] === '#') continue;
    let [cmd, ...data] = line.split(' ');
    switch (cmd) {
        case 'b': {
            let [name, origin] = data;
            let idx = hash[origin];
            console.assert(idx != null, line);
            schools[idx] += `,${name}`;
            break;
        }
        case 'f': {
            let [name, origin] = data;
            let idx = hash[origin];
            console.assert(idx != null, line);
            let segments = schools[idx].split(',');
            segments.splice(2, 0, name);
            schools[idx] = segments.join(',');
            break;
        }
        case 'c': {
            let [province, city, name] = data;
            schools.push(`${province},${city},${name}`);
            hash[name] = n++;
            break;
        }
    }
}

fs.writeFileSync('data/school_new.txt', schools.join('\n') + '\n', 'utf8');