Function Dates

default_plugins/dates.js:2–407

(knwl)

/* Date Parser */
function Dates(knwl) {
    
    this.languages = {
        'english': true,
    };
    
    this.year = {};
    this.year.lookForYear = function(pos) {
        
        /*
            Attempts to find year in string through ranking:
            1. Proximity to trigger source
            2. Punctuation syntax
        */
        
        var potential = [];
        
        var fall = 1.0; //ranking fall
        
        
        for (var ee = pos; ee > pos - 20; ee--) {
            if (dates.db.wordsWithPunc[ee] === undefined) {
                break;
            }
            if (dates.db.wordsWithPunc[ee].search(/[,;:]/g) !== -1) { //rank lower if comma seperates results
                fall += 4;
            } else if (dates.db.wordsWithPunc[ee].search(/[.?!]/g) !== -1) { //rank much lower if in another sentence
                fall += 72;
            }
            var curWord = dates.db.wordsWithPunc[ee].replace(/[.,!?\(\)]/g, ''); //cleanup
            if (isNaN(parseInt(curWord)) === false) {
                var parsedWord = parseInt(curWord);
                if (parsedWord.toString().length === 4) {
                    potential.push({
                        offset: (pos - ee) * fall,
                        year: parseInt(curWord)
                    });
                    break;
                }
            }
        };
        
        fall = 1.0; //reset ranking fall
        
        for (var ee = pos; ee < pos + 20; ee++) {
            if (dates.db.wordsWithPunc[ee] === undefined) {
                break;
            }
            var curWord = dates.db.wordsWithPunc[ee].replace(/[.,!?\(\)]/g, ''); //cleanup
            if (isNaN(parseInt(curWord)) === false) {
                var parsedWord = parseInt(curWord);
                if (parsedWord.toString().length === 4) {
                    potential.push({
                        offset: (ee - pos) * fall,
                        year: parseInt(curWord)
                    });
                    break;
                }
            }