8000 Define function aliases in registry, initially including `:integer` by eemeli · Pull Request #532 · unicode-org/message-format-wg · GitHub
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Define function aliases in registry, initially including :integer #532

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Merged
merged 2 commits into from
Dec 4, 2023
Merged

Define function aliases in registry, initially including :integer #532

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a0deac9
Define function aliases in registry, initially including :integer
eemeli Nov 27, 2023
a06b096
Merge branch 'main' into function-aliasing
eemeli Nov 27, 2023
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14 changes: 13 additions & 1 deletion spec/registry.dtd
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Original file line number Diff line number Diff line change
@@ -1,6 +1,6 @@
<!ELEMENT registry (function|validationRule)*>

<!ELEMENT function (description,(formatSignature|matchSignature)+)>
<!ELEMENT function (description,(formatSignature|matchSignature|alias)+)>
<!ATTLIST function
name NMTOKEN #REQUIRED
>
Expand Down Expand Up @@ -46,3 +46,15 @@
values NMTOKENS #IMPLIED
validationRule IDREF #IMPLIED
>

<!ELEMENT alias (description,setOption*)>
<!ATTLIST alias
name NMTOKEN #REQUIRED
supports (format|match|all) "all"
>

<!ELEMENT setOption EMPTY>
<!ATTLIST setOption
name NMTOKEN #REQUIRED
value CDATA #REQUIRED
>
11 changes: 11 additions & 0 deletions spec/registry.md
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Expand Up @@ -65,6 +65,11 @@ Read-only options (the `readonly` attribute) can be displayed to translators in
Matching-function signatures additionally include one or more `<match>` elements
to define the keys against which they can match when used as selectors.

Functions may also include `<alias>` definitions,
which provide shorthands for commonly used option baskets.
An _alias name_ may be used equivalently to a _function name_ in messages.
Its `<setOption>` values are always set, and may not be overridden in message annotations.

## Example

The following `registry.xml` is an example of a registry file
Expand Down Expand Up @@ -116,6 +121,12 @@ For the sake of brevity, only `locales="en"` is considered.
<option name="style" readonly="true" values="decimal currency percent unit" default="decimal"/>
<option name="currency" readonly="true" validationRule="currencyCode"/>
</formatSignature>

<alias name="integer">
<description>Locale-sensitive integral number formatting</description>
<setOption name="maximumFractionDigits" value="0" />
<setOption name="style" value="decimal" />
</alias>
</function>
</registry>
```
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5 changes: 5 additions & 0 deletions spec/registry.xml
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Expand Up @@ -142,6 +142,11 @@
<option name="maximumSignificantDigits" values="positiveInteger" default="21"/>
</formatSignature>

<alias name="integer">
<description>Locale-sensitive integral number formatting</description>
<setOption name="maximumFractionDigits" value="0" />
<setOption name="style" value="decimal" />
</alias>
</function>

</registry>
0