Calendar tools holidays

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Explanation of how to add or change the holidays appearing on the output of the calendar tool.

Calendar Holidays

Gramps now comes with three Calendar-based reports: a Calendar, and a Birthday and Anniversary report, and an output for the Web. If you would like to add your country's holidays to the calendar, then you can add them to the file gramps/plugins/holidays.xml. Here, you can add recurring annual events in a variety of ways. The format is generally:

<?xml version="1.0" encoding="iso-8859-1"?>
<calendar>
  <country name=COUNTRYNAME>
    <date name=NAME value=VALUE type=TYPE offset=OFFSET if=EXPRESSION />
    ...
  </country>
  <country name=COUNTRYNAME>
    <date name=NAME value=VALUE type=TYPE offset=OFFSET if=EXPRESSION />
    ...
  </country>
  ...
</calendar>

where each of the capitalized words would be filled in with appropriate values, as follows. All but NAME and VALUE are optional.

  • COUNTRYNAME => "United States", "China", etc. You don't have to make these countries, however. You can make these just a "holiday set" which could be "Christian", "Muslim", "Eastern European", etc. These names can be selected from a list when running calendar-related reports. You can use your own language for this name.
  • NAME => the text to appear on the calendar
  • TYPE => "secular", "religious", "personal", "informational" (This isn't currently used in the calendar, but could be. Use these keywords, untranslated.)
  • EXPRESSION => a python expression that must be true for this to appear on the calendar. You can use y, m, and d variables (for year, month, and day, all integers). See VALUE for examples.
  • VALUE =>
    • "YEAR/MONTH/DAY"
      • "2012/12/25"
      • "*/12/25"
    • "YEAR/MONCODE/DAY"
      • "2012/dec/25"
      • "*/dec/25"
    • "YEAR/NUMBER/DAYCODE/MONCODE" (nth day of week in month, year)
      • "2012/1/mon/dec" (first monday in december, 2012)
      • "*/-1/tue/dec" (last tuesday in december, every year)
    • "> EXPRESSION" (which evaluates to one of the previous two types of VALUES). Current useful expression values are:
      • "> easter(y)" (Easter for current year)
      • "> dst(y)[0]" (Daylight Saving Time, "us", start)
      • "> dst(y)[1]" (Daylight Saving Time, "us", end)
      • "> dst(y, "eu")[0]" (Daylight Saving Time, "eu", start)
      • "> dst(y, "eu")[1]" (Daylight Saving Time, "eu", end)
  • YEAR => "*" or an actual year. "*" means any year.
  • MONTH => "*" or actual month number. "*" means any month.
  • DAY => "*" or actual day number in month. "*" means any day.
  • NUMBER => number of weekday in month. For example, "every 3rd Tuesday in April" would be "*/3/tue/apr". NUMBER can also be negative, which means it is counted from the end of the month. "last Tuesday in April 2007" could be "2007/-1/tue/4"
  • DAYCODE => "mon", "tue", "wed", "thu", "fri", "sat", or "sun". Do not translate these words; use all lowercase.
  • MONCODE => MONTH, or 'jan', 'feb', 'mar', 'apr', 'may', 'jun', 'jul', 'aug', 'sep', 'oct', 'nov', or 'dec'. String version should not be translated; use all lowercase.
  • OFFSET => DAYCODE or a number (either may be negative) that offsets the day determined above. If it is a DAYCODE, then it will find the next DAYCODE that is either the same as this day, or the next(+)/prev(-) one.

Examples

<?xml version="1.0" encoding="iso-8859-1"?>
<calendar>
  <country name="United States">
    <date name="Daylight Saving Time begins" value="> dst(y)[0]" type="informational" />
    <date name="Daylight Saving Time ends" value="> dst(y)[1]" type="informational" />
    <date name="New Year's Day" value="*/1/1" type="national" />
    <date name="Labor Day" value="*/1/mon/sep" type="national" />
    <date name="Thanksgiving" value="*/4/thu/nov" type="national" />
    <date name="Inauguration Day" value="*/1/20" if="(y - 1980) % 4 == 0"  type="national" />
    <date name="Washington's Birthday" value="*/3/mon/feb" type="secular" />
    <date name="St. Patrick's Day" value="*/3/17" type="secular" />
    <date name="Assistants' Day" value="*/-1/sat/apr" offset="-3" type="secular" />
    <date name="Arbor Day" value="*/-1/fri/apr" type="secular" />
    <date name="Mothers' Day" value="*/2/sun/may" type="secular" />
    <date name="Fathers' Day" value="*/3/sun/jun" type="secular" />
    <date name="ML Kings's Birthday" value="*/3/mon/jan"  type="secular" />
    <date name="Memorial Day" value="*/-1/mon/may" type="secular" />
    <date name="Easter" value="> easter(y)" type="religious" />
    <date name="Ash Wednesday" value="> easter(y)" offset="-46" type="religious" />
   </country>
  <country name="China">
    <date name="Chinese New Year" value="2006/1/29" type="national" />
  </country>
  <country name="Finland">
    <date name="Card Night" value="*/-1/thu/*" type="personal" />
  </country>
</calendar>

The last set will only load if your country is Finland. It says that Card Night is the last Thursday of every month, every year. Let's play!

Note that you can have two separate holidays.xml files: one where GRAMPS is installed, and one in your personal .gramps/plugins/ folder.