INNER CODE UNIT · Python

add

volfpeter/htmy · htmy/core.py:266

    def add(self, key: type[T], formatter: Callable[[T], str]) -> Self:
        """Registers the given value formatter under the given key."""
        self._value_formatters[key] = formatter
        return self

    def format(self, name: str, value: Any) -> str:
        """
        Formats the given name-value pair.

        Returns an empty string if the property name or value should be skipped.

        See `SkipProperty` for more information.
        """
        try:
            return f"{self.format_name(name)}={xml_quoteattr(self.format_value(value))}"
        except SkipProperty:
            return ""

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