Nodyn:Birth based on age as of date/doc

Dyma is-ddalen dogfennaeth ar gyfer Nodyn:Birth based on age as of date.
Mae'n cynnwys gwybodaeth defnydd, categorïau, dolenni rhyngiaith a chynnwys eraill sydd ddim yn rhan o nodyn dudalen wreiddiol.

This template employs intricate features of template syntax.

You are encouraged to familiarise yourself with its setup and parser functions before editing the template. If your edit causes unexpected problems, please undo it quickly, as this template may appear on a large number of pages.
Remember that you can conduct experiments, and should test all improvements, in either the or your user space before changing anything here.

This template calculates a person's birth year and current age based on their age as of a date. This is useful when a reliable source states only their age at the time of publication.

Syntax

 {{birth based on age as of date |age |year|month|day}}

The age, year, and day must be supplied as natural numbers; month can be specified as a natural number as well as by name or abbreviation (e.g. "August" or "Aug"). The Gregorian calendar is assumed, with no special support provided for dual dating or the difference between Old Style and New Style dates.

If they are not known, the "day" and "month" fields can be omitted; this is useful if, for example, only the publication year for a source is known.

Options

To suppress the age field:

 {{birth based on age as of date |age |year|month|day |noage=1}}

With the "noage=1" option, the month and day can be "1".

To replace the '/' separator with ' or ' in compliance with WP:APPROXDATE, add |mos=1

{{birth based on age as of date|50 |2023|11|29|mos=1}}

1972 neu 1973 (oed 51)

Examples

If, for example, a reference dated July 4, 2023 mentions that someone is 50 years old, that person's birth year and age can be rendered using:

{{birth based on age as of date |50 |2023|July|4}}

The following examples are for a person reported as being 50 years old in 2023

Template code	Result
{{birth based on age as of date \| 50 \| 2023 \| 11 \| 29}}	1972/1973 (oed 51)
{{birth based on age as of date \| 50 \| 2023 \| Tachwedd \| 29}}	1972/1973 (oed Gweithredydd < annisgwyl–Gweithredydd < annisgwyl)
{{birth based on age as of date \| 50 \| 2023 \| 12 \| 31}}	1972/1973 (oed 50–51)
{{birth based on age as of date \| 50 \| 2023 \| Jan \| 1}}	1972/1973 (oed 51–52)
{{birth based on age as of date \| 50 \| 2023 \| 12 \| 31 \| noage=1}}	1972/1973
{{birth based on age as of date \| 50 \| 2023 \| Jan \| 1 \| noage=1}}	1972/1973
{{birth based on age as of date \| 50 \| 2023 \| Tachwedd}}	1972/1973 (oed Gweithredydd < annisgwyl–Gweithredydd < annisgwyl)
{{birth based on age as of date \| 50 \| 2023 \| Jan}}	1972/1973 (oed 51–52)
{{birth based on age as of date \| 50 \| 2023 \| 12}}	1972/1973 (oed 50–51)
{{birth based on age as of date \| 50 \| 2023}}	1972/1973 (oed 50–52)

Birth, death, age

{{BirthDeathAge}} – combines functions of {{Birth-date}}, {{Birth date}}, {{Birth date and age}}, {{Birth year and age}}, {{Death-date}}, {{Death date}}, {{Death date and age}}, {{Death year and age}}

{{Birth date}} – displays the date and related hidden metadata
{{Birth date and age}} – same as {{Birth date}}, except that "(age ##)" appears after the birth date
{{Birth date and age2}} – displays birth date, plus age as of a specified date, "(aged ##)" appears after the birth date
{{Birth-date and age}} – display birth date and age, accepts dates as text (15 June 1950; June 15, 1950; June 1950; etc.)
{{Birth year and age}} – year of birth and approximate age
{{Birth based on age as of date}} – displays approximate birth year and current age; used when a dated reference mentions the age of a person as of the date of publication
{{Birth date based on age at death}} – displays approximate birth year based on age at death (useful if exact birth date is not known, but age at death is)
{{Death date}} – displays the date and related hidden metadata
{{Death date and age}} – same as {{Death date}}, except that "(aged ##)" appears after the death date
{{Death-date and age}} – display death date and age, accepts date as text (15 June 1950; June 15, 1950; June 1950; etc.)
{{Death date and given age}} – displays death date and specified age (useful if exact birth date is not known, but age at death is)
{{Death year and age}} – year of death and approximate age at death

Age only

{{Age}} – age based on the number of full years between two dates (or a specified date and current date)
{{Age nts}} – like {{Age}}, but sorts correctly in sortable tables
{{Age as of date}} – current age in years, based on a known age as of a specified date
{{Age in years and days}} – full years and days between two dates (or a specified date and current date)
{{Age in years and days textual version}} – for usage in text (uses "and" instead of the comma)
{{Age in days}} – age in days between two dates (or a specified date and current date)
{{Age in days nts}} – age in days; sorts correctly in sortable tables

This template calculates the birth year and current age based on the age as of a date.

Paramedrau'r nodyn
This template prefers inline formatting of parameters.
Paramedr		Disgrifiad	Math	Statws
Age	`1`	Age of subject at date of reference's publication. Enghraifft 55	Rhif	angenrheidiol
Year	`2`	Year of publication of reference. Enghraifft 1950	Rhif	angenrheidiol
Month	`3`	Month of publication of reference. Enghraifft 8 or August	Llinyn	suggested
Day	`4`	Day of publication of reference. Enghraifft 21	Rhif	suggested
MOS compliance	`mos`	Set to a value of 1 to replace the '/' separator with ' or ' in compliance with [[WP:APPROXDATE]]. Enghraifft 1	Rhif	dewisol
Hide age	`noage`	Set to a value of 1 to display year of birth without the age. Enghraifft 1	Rhif	dewisol