date-mapping.json

{
    "datePatterns": ["%Y", "(%Y)", "[%Y]", "%Y-%m-%d", "%Y--%m-%d", "%Y--%m--%d", "%d/%m/%Y", "%Y/%m/%d", "%Y%m%d", "%Y----", "%Y.%m.%d", "%d.%m.%Y"],
    "components": {
        "months": {
            "English": {
                "January": "01", "February": "02", "March": "03", "April": "04",
                "May": "05", "June": "06", "July": "07", "August": "08",
                "September": "09", "October": "10", "November": "11", "December": "12"
            },
            "French": {
                "Janvier": "01", "Février": "02", "Mars": "03", "Avril": "04",
                "Mai": "05", "Juin": "06", "Juillet": "07", "Août": "08",
                "Septembre": "09", "Octobre": "10", "Novembre": "11", "Décembre": "12"
            },
            "Dutch": {
                "Januari": "01", "Februari": "02", "Maart": "03", "April": "04",
                "Mei": "05", "Juni": "06", "Juli": "07", "Augustus": "08",
                "September": "09", "Oktober": "10", "November": "11", "December": "12"
            },
            "German": {
                "Januar": "01", "Februar": "02", "März": "03", "April": "04",
                "Mai": "05", "Juni": "06", "Juli": "07", "August": "08",
                "September": "09", "Oktober": "10", "November": "11", "Dezember": "12"
            }
        },
        "keywords": {
            "before": "(?:before|avant|Avant)",
            "after": "(?:after|après|Après|apres|Apres)",
            "between": "(?:entre|Entre|between|Between)",
            "and": "(?:and|et|Et)",
            "or": "(?:or|ou|of)",
            "circa": "(?:c.|ca.|Vers)"
        },
        "year": "(\\d{4})",
        "century": "([1-9]|1[0-9]|20|21)",
        "month": "(0[1-9]|1[012])",
        "day": "([0]?[1-9]|[1-2][0-9]|3[01])",
        "roman_numeral": "(X{0,3}|IX|V?I{0,3})"
    },
    "rules": {
        "range_with_and_written_month": {
            "pattern": "%(keywords.before)s\\s+(%(months.generic)s)\\s+%(year)s\\s+%(keywords.and)s\\s+%(keywords.after)s\\s+(%(months.generic)s)\\s+%(year)s",
            "template": "%s-%s/%s-%s"
        },
        "range_with_and_year": {
            "pattern": "%(keywords.before)s\\s+%(year)s\\s+%(keywords.and)s\\s+%(keywords.after)s\\s+%(year)s",
            "template": "[%s/%s]"
        },
        "between_years": {
            "pattern": "%(keywords.between)s\\s+%(year)s\\s+%(keywords.and)s\\s+%(year)s",
            "template": "[%s..%s]"
        },
        "before_written_month_year": {
            "pattern": "%(keywords.before)s\\s+(%(months.generic)s)\\s+%(year)s",
            "template": "[..%s-%s]"
        },
        "before_dash_date": {
            "pattern": "%(keywords.before)s\\s+%(day)s/%(month)s/%(year)s",
            "template": "[..%s-%s-%s]"
        },
        "after_written_month_year": {
            "pattern": "%(keywords.after)s\\s+(%(months.generic)s)\\s+%(year)s",
            "template": "[%s-%s..]"
        },
        "written_month_year": {
            "pattern": "(%(months.generic)s)\\s+%(year)s"
        },
        "before_year": {
            "pattern": "%(keywords.before)s\\s+%(year)s",
            "template": "[..%s]"
        },
        "after_year": {
            "pattern": "%(keywords.after)s\\s+%(year)s$",
            "template": "[%s..]"
        },
        "year_month": {
            "pattern": "%(year)s-%(month)s(?:-XX)?(?!-\\d)",
            "template": "%s-%s"
        },
        "year_or": {
            "pattern": "%(year)s\\s+%(keywords.or)s\\s+%(year)s",
            "template": "[%s,%s]"
        },
        "year_or_brackets": {
            "pattern": "%(year)s\\s+\\(%(keywords.or)s\\s+%(year)s\\)",
            "template": "[%s,%s]"
        },
        "uncertain_year": {
            "pattern": "^%(year)s\\s+\\?",
            "template": "%s?"
        },
        "circa_year": {
            "pattern": "%(keywords.circa)s\\s*%(year)s",
            "template": "%s~"
        },
        "one_of_two_years_dash": {
            "pattern": "%(year)s\\s*-\\s*%(year)s",
            "template": "[%s,%s]"
        },
        "one_of_two_years_slash": {
            "pattern": "%(year)s\\s*\/\\s*%(year)s",
            "template": "[%s,%s]"
        },
        "years_slash_abbreviation": {
            "pattern": "%(year)s\\s*\/(\\d{1,2})"
        },
        "date_and_text": {
            "pattern": "%(year)s{-}?%(month)s{-}?%(day)s(?:,|\\s)*(?:\\b\\w+\\b\\s*)*",
            "template": "%s-%s-%s"
        },
        "year_and_text": {
            "pattern": "%(year)s(?:,|\\s)*(?:\\b\\w+\\b\\s*)*",
            "template": "%s"
        },
        "century": {
            "pattern": "^%(century)s(?:X|-)?(?!\\d)",
            "template": "%sXX"
        }
    }
}