timetable/lib/scratch/mysterious-pipe-losses.js

Using GTFS and other sources to produce beautiful and usable timetables for public transport.

// Generated by CoffeeScript 1.7.1
(function() {
  var $count, $show, as_transformer, fs, log, read_trips, route, transform_stream;

  fs = require('fs');

  transform_stream = require('stream-transform');

  log = console.log;

  as_transformer = function(method) {
    return transform_stream(method, {
      parallel: 11
    });
  };

  $count = function(input_stream, title) {
    var count;
    count = 0;
    input_stream.on('end', function() {
      return log((title != null ? title : 'Count') + ':', count);
    });
    return as_transformer((function(_this) {
      return function(record, handler) {
        count += 1;
        return handler(null, record);
      };
    })(this));
  };

  $show = function() {
    return as_transformer((function(_this) {
      return function(record, handler) {
        log(record);
        return handler(null, record);
      };
    })(this));
  };

  read_trips = function(route, handler) {
    var input;
    input = fs.createReadStream(route);
    input.on('end', function() {
      log('ok: trips');
      return handler(null);
    });
    input.setMaxListeners(100);
    input.pipe($count(input, 'trips A')).pipe($count(input, 'trips B')).pipe($count(input, 'trips C')).pipe($count(input, 'trips D')).pipe($count(input, 'trips E')).pipe($count(input, 'trips F')).pipe($count(input, 'trips G')).pipe($count(input, 'trips H')).pipe($count(input, 'trips I')).pipe($count(input, 'trips J')).pipe($count(input, 'trips K')).pipe($count(input, 'trips M')).pipe($count(input, 'trips N')).pipe($count(input, 'trips O')).pipe($count(input, 'trips P')).pipe($count(input, 'trips Q')).pipe($count(input, 'trips R')).pipe($count(input, 'trips R')).pipe($count(input, 'trips S')).pipe($count(input, 'trips T')).pipe($count(input, 'trips U')).pipe($count(input, 'trips V')).pipe($count(input, 'trips W')).pipe($count(input, 'trips X')).pipe($count(input, 'trips Y')).pipe($count(input, 'trips Z'));
    return null;
  };

  route = '/Volumes/Storage/cnd/node_modules/timetable-data/germany-berlin-2014/agency.txt';

  read_trips(route, function(error) {
    if (error != null) {
      throw error;
    }
    return log('ok');
  });

}).call(this);