Webtags/Parameters (preserving history): Difference between revisions

Webtags/Parameters (preserving history) (view source)

Revision as of 06:14, 24 July 2021

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→‎Which tag names take date/time output formatting modifiers: missing )

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 There are nearly a thousand different tag names.
-There are a few tag names labelled as being fixed format, obviously they cannot take any output modifiers.
+There are a few tag names labelled as being fixed format, that means any time/date output modifiers you might try would be ignored.
-Time modifiers can be used to change the way that durations are reported, for tag names that report durations instead of clock times. Examples include '''<#daylength>'''  and '''<#MonthDailyRainHD format=H:mm>'''.  The [[webtags]] page clearly identifies those tag names that report clock times, but it is left to you to work out where durations are reported.
+Some tag names, although it can be hard to tell which, report durations. You can use time modifiers to change how these are reported. Examples include '''<#daylength format=H:mm:ss>'''  and '''<#MonthDailyRainHD format=H:mm>'''.
+Time modifiers can also be used to change the way that clock times are reported, you might only want the hour, or you might (if resolution is available) want to also see seconds.  The [[webtags]] page has columns headed "Time" to clearly identify all tag names that report clock times.
 There are some tag names (e.g. moon rise) that relate to an event that does not happen each Earth day, so those tags have to be able to report "--:--", and you cannot modify their output.
-There are some tags (e.g. highest temperature range in month/year), for which Cumulus has been coded to report "--:--" on the first day of that period (because there is only a partial day to consider you might not yet have experienced a true maximum and a true minimum, so modifying their output can only be done on subsequent days.
+There are some tags (e.g. highest temperature range in month/year), for which Cumulus has been coded to report "--" for value, and "--:--" for time, on the first day of that period (because there is only a partial day to consider you might not yet have experienced a true maximum and a true minimum), so modifying the time output can only be done on subsequent days.
-It is not possible here to list each of these tag names, and indicate which time/date modifiers are accepted on a tag by tag basis.  I did consider adding a column for that purpose to each table on the [[webtags]] page, but decided those were complicated enough.  Instead, the following table, explains much more simply, which web tags will accept time and/or date output modifiers:
+It is not practical to indicate which time/date modifiers are accepted on a tag by tag basis.  It would involve a lot of repetition.  Instead, the following table, explains much more simply, which web tags will accept time and/or date output modifiers:
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