Untitled

var http = require('http');
var fs = require('fs');

fs.unlink('index.html', function (err,data) {
  console.log(data);
});

fs.readFile('code.txt', 'utf8', function (err,data) {
  if (err) {
    return console.log(err);
  }
  console.log(data);
  var splittedFile = data.split('\n');

  const content = splittedFile.map(function (line) {
    console.log(line);
    return ('<div class='+ getClassLine(line) +'>' + prepareLine(line) + '</div>')
  });

  const html = generateHtml(content.join(" "))

     fs.appendFile('index.html', html, function (err) {
       if (err) throw err;
       console.log('Saved!');
     });
});

http.createServer(function (req, res) {
  var html = buildHtml(req);

  res.writeHead(200, {
    'Content-Type': 'text/html',
    'Content-Length': html.length,
    'Expires': new Date().toUTCString()
  });

  res.end(html);
}).listen(4000,
  console.log('Your site available at http://localhost:4000')
);

function buildHtml(req) {
  var header = '';
  var body = '';

  return '<!DOCTYPE html>'
       + '<html><head>' + header + '</head><body>' + body + '</body></html>';
};

function generateHtml(content) {
  return '<!DOCTYPE html>'
       + '<html><head>'
       + '<style>'
       + 'html { color: #FFF; background: #081b2a; font-family: "Roboto Mono", monospace; } '
       + '.lib { color: #82c3b8;} '
       + '.hash { color: #42dff4;} '
       + '.comment { color: #577482;} '
       + '.type { color: #ffaba0;} '
       + '.condition { color: #87c94a;} '
       + '.important { color: #caa3ff;} '
       + '.printers { color: #e6cadd;} '
       + '.equals { color: #ffaba0;} '
       + '</style>'
       + '<link href="https://fonts.googleapis.com/css?family=Roboto+Mono" rel="stylesheet">'
       + '</head><body>'
       + content
       + '</body></html>';
};

function prepareLine(line) {
  const splittedLine = line.split(' ');
  const preparedLine = splittedLine.map(function (code) {
    return '<span class='+ getClassCode(code) +'>' + formatCode(code) + '</span>';
  });
  return preparedLine.join(" ");
};

function formatCode(code) {
  if(code === '') {
    return '&nbsp;';
  } else if (code[0] === '<') {
    if (code[code.length-1] === '>')  {
      return "<span class='lib'>&lt;" + code.substring(1) + "</span>";
    }
    return '&lt;';
  }
  return code;
}

function getClassLine(line) {
  const lineWithoutSpaces = line.split(' ').join('');
  console.log('Line', lineWithoutSpaces);
  if(line[0] === '#') return "hash"
  if(lineWithoutSpaces[0] === '/' && lineWithoutSpaces[1] === '/') return "comment"
  return "";
}

function getClassCode(code) {
  if(code.match(/^(int|string|void)$/)) return "type"
  if(code.match(/^(for|if|else|while)$/)) return "condition"
  if(code.match(/^(return|break;)$/)) return "important"
  if(code.match(/^(printf|print|scanf)$/)) return "printers"
  if(code.match(/^(==|===|!=)$/)) return "equals"
  return ""
}