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Viewing file:     ESSlashDateFormatParser.js (3.34 KB)      -rw-r--r--

/*
    Date format with slash "/" (also "-" and ".") between numbers
    - Martes 3/11/2015
    - 3/11/2015
    - 3/11
*/
const dayjs = require('dayjs');
var Parser = require('../parser').Parser;
var ParsedResult = require('../../result').ParsedResult;

var PATTERN = new RegExp('(\\W|^)' +
    '(?:' +
        '((?:domingo|dom|lunes|lun|martes|mar|mi[ée]rcoles|mie|jueves|jue|viernes|vie|s[áa]bado|sab))' +
        '\\s*\\,?\\s*' +
    ')?' +
    '([0-1]{0,1}[0-9]{1})[\\/\\.\\-]([0-3]{0,1}[0-9]{1})' +
    '(?:' +
        '[\\/\\.\\-]' +
        '([0-9]{4}\s*\,?\s*|[0-9]{2}\s*\,?\s*)' +
    ')?' +
    '(\\W|$)', 'i');

var DAYS_OFFSET = { 'domingo': 0, 'dom': 0, 'lunes': 1, 'lun': 1, 'martes': 2, 'mar': 2, 'miercoles': 3, 'miércoles': 3, 'mie': 3,
    'jueves': 4, 'jue': 4, 'viernes': 5, 'vier': 5, 'sábado': 6, 'sabado': 6, 'sab': 6,}


var OPENNING_GROUP = 1;
var ENDING_GROUP = 6;

// in Spanish we use day/month/year
var WEEKDAY_GROUP = 2;
var MONTH_GROUP = 4;
var DAY_GROUP = 3;
var YEAR_GROUP = 5;

exports.Parser = function ESSlashDateFormatParser(argument) {
    Parser.apply(this, arguments);

    this.pattern = function () { return PATTERN; };
    this.extract = function(text, ref, match, opt){

        if(match[OPENNING_GROUP] == '/' || match[ENDING_GROUP] == '/') {
            // Long skip, if there is some overlapping like:
            // XX[/YY/ZZ]
            // [XX/YY/]ZZ
            match.index += match[0].length
            return;
        }

        var index = match.index + match[OPENNING_GROUP].length;
        var text = match[0].substr(match[OPENNING_GROUP].length, match[0].length - match[ENDING_GROUP].length);


        var result = new ParsedResult({
            text: text,
            index: index,
            ref: ref,
        });

        if(text.match(/^\d\.\d$/)) return;
        if(text.match(/^\d\.\d{1,2}\.\d{1,2}$/)) return;

        // MM/dd -> OK
        // MM.dd -> NG
        if(!match[YEAR_GROUP] && match[0].indexOf('/') < 0) return;

        var date = null;
        var year = match[YEAR_GROUP] || dayjs(ref).year() + '';
        var month = match[MONTH_GROUP];
        var day   = match[DAY_GROUP];

        month = parseInt(month);
        day  = parseInt(day);
        year = parseInt(year);

        if(month < 1 || month > 12) {
            if(month > 12) {
                // dd/mm/yyyy date format if day looks like a month, and month
                // looks like a day.
                if (day >= 1 && day <= 12 && month >= 13 && month <= 31) {
                    // unambiguous
                    var tday = month;
                    month = day;
                    day = tday;
                }
                else {
                    // both month and day are <= 12
                    return null;
                }
            }
        }
        if(day < 1 || day > 31) return null;

        if(year < 100){
            if(year > 50){
                year = year + 1900;
            }else{
                year = year + 2000;
            }
        }

        result.start.assign('day', day);
        result.start.assign('month', month);
        result.start.assign('year', year);

        //Day of week
        if(match[WEEKDAY_GROUP]) {
            result.start.assign('weekday', DAYS_OFFSET[match[WEEKDAY_GROUP].toLowerCase()]);
        }

        result.tags['ESSlashDateFormatParser'] = true;
        return result;
    };
};