Allow implied past or future about chrono

[HaNdTriX]

The code above doesn't work anymore since the api has changed.
Just in case somebody has the same issue, here my refiner that should work with the latest version (1.0.x).

function isPastDate({year, month, day}, ref) {
  let refDay = ref.getDate();
  let refMonth = ref.getMonth() + 1;
  let refYear = ref.getFullYear();
  if(refYear > year) {
    return true;
  }
  if(refMonth > month){
    return true;
  }
  if(refDay > day){
    return true;
  }
  return false;
}

var PreferPastLastWeek = new chrono.Refiner();
PreferPastLastWeek.refine = function(text, results) {
  results.forEach(function(result) {
    if (result.start.isCertain('weekday') && !result.start.isCertain('day')) {
      if(isPastDate(result.start.impliedValues, result.ref)) {
        result.start.imply('day', result.start.impliedValues.day + 7)
      }
    }
  });
  return results;
};

chrono.casual.refiners.push(PreferPastLastWeek);
chrono.strict.refiners.push(PreferPastLastWeek);

Anyway thanks @wanasit for this awesome lib!

[wanasit]

Actually, you can customize Chrono with some plug-in called refiners.
(It's currently undocumented. Sorry that I didn't have time to do that recently)

var chrono = require('chromo');
var _chrono = new chrono();  //Let's keep the global chrono uncustomized

_chrono.parseDate('Thursday', new Date(2013,11,2))
// Thu Dec 05 2013 12:00:00 GMT+0900 (JST)

_chrono.refiners.PreferPastLastWeek = {
    refine: function(text, results) {
        results.forEach(function(result){
            // Check and modify the result
            if( result.start.isCertain('dayOfWeek') && !result.start.isCertain('day')){
                result.start.imply('day', result.start.day - 7)
            }
        })
        return results;
    }
}

_chrono.parseDate('Thursday', new Date(2013,11,2))
// Thu Nov 28 2013 12:00:00 GMT+0900 (JST)

You can define plug-in chrono.refiners.XXX with an object with function refine (receives text and an array of parsed results as arguments, and returns array of modified results). As its name, you can refine the parsing results with your custom rules.

Hope this helps

[hazeledmands]

Right on! Can't wait to try it out :) 👍