//	---------- 0/0               0 2017-07-13 19:40 global1
		//	---------- 0/0               0 2017-07-13 19:40 file2
		//	gnutar: Substituting `.' for empty member name
		//	---------- 0/0               0 1969-12-31 16:00
		//	gnutar: Substituting `.' for empty member name
		//	---------- 0/0               0 2014-05-13 09:53
		//
		// According to the PAX specification, this should have been the result:

	for _, tok := range macro.tokens {
		if tok.ScanToken != scanner.Ident {
			tokens = append(tokens, tok)
			continue
		}
		substitution := actuals[tok.text]
		if substitution == nil {
			tokens = append(tokens, tok)
			continue
		}
		tokens = append(tokens, substitution...)
	}
	in.Push(NewSlice(in.Base(), in.Line(), tokens))
}

import org.apache.maven.api.annotations.Experimental;
import org.apache.maven.api.annotations.Nonnull;
import org.apache.maven.api.annotations.Nullable;

/**
 * The Interpolator service provides methods for variable substitution in strings and maps.
 * It allows for the replacement of placeholders (e.g., ${variable}) with their corresponding values.
 *
 * @since 4.0.0
 */
@Experimental
public interface Interpolator extends Service {

<p>
A generic function or type is <i>instantiated</i> by substituting <i>type arguments</i>
for the type parameters [<a href="#Go_1.18">Go 1.18</a>].
Instantiation proceeds in two steps:
</p>

<ol>
<li>
Each type argument is substituted for its corresponding type parameter in the generic
declaration.
This substitution happens across the entire function or type declaration,

                and MAY be relative, to indicate that the host location is relative
                to the location where the OpenAPI document is being served. Variable
                substitutions will be made when a variable is named in `{`brackets`}`.
                * `description`: An optional string describing the host designated by
                the URL. [CommonMark syntax](https://commonmark.org/) MAY be used for

        </field>
        <field xdoc.separator="blank">
          <name>properties</name>
          <version>4.0.0+</version>
          <description>
            Properties that can be used throughout the POM as a substitution, and
            are used as filters in resources if enabled.
            The format is {@code &lt;name>value&lt;/name>}.
          </description>
          <type>Properties</type>

</pre>

<p>
Within a parenthesized <code>const</code> declaration list the
expression list may be omitted from any but the first ConstSpec.
Such an empty list is equivalent to the textual substitution of the
first preceding non-empty expression list and its type if any.
Omitting the list of expressions is therefore equivalent to
repeating the previous list.  The number of identifiers must be equal