Convert PO file to JSON (assumes no weird exceptions like escaped-double characters, newlines)

po-to-json.js

const fs = require('fs');

fs.readFile('./out-blockly-0-all_ig.po', (err, content) => {
  if (err) {
    throw err;
  }

  let structure = {
  	"@metadata": {
  		"authors": [
  			"Mapmeld",
        "Ukabia"
  		]
  	}
  };

  let lines = (content + '').split('\n'),
      currentvar = null,
      originalval = null;
  lines.forEach((line) => {
    if (line.indexOf('msgctxt') === 0) {
      currentvar = line.split('"')[1];
    } else if (line.indexOf('msgid') === 0) {
      originalval = line.split('"')[1];
    } else if (line.indexOf('msgstr') === 0) {
      let setval = line.split('"')[1];
      if (currentvar) {
        if (setval.length) {
          structure[currentvar] = setval;
        } else {
          structure[currentvar] = originalval;
        }
      }
      currentvar = null;
      originalval = null;
    }
  });

  fs.writeFile('./ig.json', JSON.stringify(structure).replace(/\"\,/g, '",\n'), (err) => {
    console.log(err || 'done');
  });
});