4.13 Macro Formal Parameters

4.13 Macro Formal Parameters

Formal parameters can appear in the expressions forming macro bodies in

accordance with the syntax rules defined above. A formal parameter expands to

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the text of the expansion of its corresponding actual parameter. There is nothing

preventing a formal parameter being provided as part of an expression that forms

Developer

an actual parameter. In that happens, the formal parameter is bound to the actual

parameter of the calling macro, not the called macro. After the following

Reference

definitions,

1 Introduction

2 Interface

@$@@(@1@)=@{A walrus in @1 is a walrus in vain.@}

@$@@(@1@)=@{@@(S@1n@)@}

3 Scanner

4 Parser

the call

5 Analyser

6 Tangle

@@(pai@)

7 Weave

will result in the expansion

8 Shell

9 Commands

A walrus in Spain is a walrus in vain.

10 Glossary

11 References

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