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44 lines
1.0 KiB
Go
44 lines
1.0 KiB
Go
1 year ago
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package ntime
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import "git.noahlan.cn/noahlan/ntool/nstr/ac"
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var matches = []string{
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"ddd", "dd", "d",
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"HH", "hh", "h", // HH:0-23 hh:0-12
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"mm", "m",
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"ss", "s",
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"yyyy", "yy", "y",
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"SSS",
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"a", "aa",
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"MMMM", "MMM", "MM", "M",
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"ZZ", "Z", "zz:zz", "zzzz", "z",
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"EEEE", "E",
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}
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var replaceWith = []string{
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"_2", "02", "2",
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"15", "03", "3",
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"04", "4",
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"05", "5",
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"2006", "06", "06",
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"000",
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"pm", "PM",
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"January", "Jan", "01", "1",
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"-0700", "-07", "Z07:00", "Z0700", "MST",
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"Monday", "Mon",
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}
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// ToLayout converts java date format,
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// https://docs.oracle.com/javase/6/docs/api/java/text/SimpleDateFormat.html#rfc822timezone into go date layout
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func ToLayout(dateFormat string) string {
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acBuilder := ac.NewAhoCorasickBuilder(ac.Opts{
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AsciiCaseInsensitive: false, // 大小写敏感
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MatchOnlyWholeWords: false,
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MatchKind: ac.LeftMostLongestMatch, // 最左最长匹配
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DFA: true,
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})
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aho := acBuilder.Build(matches)
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replacer := ac.NewReplacer(aho)
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return replacer.ReplaceAll(dateFormat, replaceWith)
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}
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