[stringtemplate-interest] Templates that get another templates as arguments?

[Дмитрий Васильев]

Consider the following example. I have a template that greets my friends:

greet()::=<<
<hello("Bob")>
<hello("John")>
<hello("Kate")>
<hello("Barbara")>
>>

hello(name)::=<<
Hello, <name>!
>>

Sometimes I want print their names in bold:

hello(name)::=<<
Hello, [b]<name>[/b]!
>>

Sometimes I want to prepend their names with the word "dear":

hello(name)::=<<
Hello, dear <name>!
>>

Generally, I want to pass a template for handling various cases as an
argument to template 'greet()'. I want to be able to do something like this:

greet(processName)::=<<
<hello("Bob")>
<hello("John")>
<hello("Kate")>
<hello("Barbara")>
>>

hello(name)::=<<
Hello, <processName(name)>
>>

bold(text)::=<<
[b]<text>[/b]
>>

dear(name)::=<<
dear <name>
>>

greet_in_bold()::=<<
<greet(processName=bold)>
>>

greet_dear()::=<<
<greet(processName=dear)>
>>

But I can't find how I can do something similar with StringTemplate. Do I
miss something obvious?
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