grokify/mogo

package timeutil

import (
    "strings"
    "time"
)

func ParseTimeCanonical(layout, value string) (time.Time, error) {
    return time.Parse(layout, ReplaceMonthCanonical(value))
}

func ParseTimeCanonicalFunc(layout string) func(s string) (time.Time, error) {
    return func(s string) (time.Time, error) {
        return ParseTimeCanonical(layout, s)
    }
}

func CanonicalMonthMap() map[string][]string {
    return map[string][]string{
        "Jan": {"January"},
        "Feb": {"February"},
        "Mar": {"March"},
        "Apr": {"April"},
        "May": {""},
        "Jun": {"June"},
        "Jul": {"July"},
        "Aug": {"August"},
        "Sep": {"September", "Sept"},
        "Oct": {"October"},
        "Nov": {"November"},
        "Dec": {"December"}}
}

func ReplaceMonthCanonical(s string) string {
    mm := CanonicalMonthMap()
    for k, vals := range mm {
        for _, v := range vals {
            if v == "" {
                continue
            }
            s = strings.ReplaceAll(s, v, k)
            s = strings.ReplaceAll(s, strings.ToLower(v), k)
        }
    }
    return s
}