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AutoGen Macro Syntax

The general syntax is:

[ { <native-macro-name> | <user-defined-name> } ] [ <arg> ... ]

The syntax for <arg> depends on the particular macro, but is generally a full expression (see section Macro Expression Syntax). Here are the exceptions to that general rule:

1. INVOKE macros, implicit or explicit, must be followed by a list of name/string value pairs. The string values are simple expressions, as described above. That is, the INVOKE syntax is either:

   <user-macro-name> [ <name> [ = <expression> ] ... ]
   

   or

   INVOKE <name-expression> [ <name> [ = <expression> ] ... ]
   

2. AutoGen FOR macros must be in one of two forms:

   FOR <name> [ <separator-string> ]
   

   or

   FOR <name> (...Scheme expression list)
   

   where <name> must be a simple name and the Scheme expression list is expected to contain one or more of the for-from, for-to, for-by, and for-sep functions. (See section FOR - Emit a template block multiple times, and section AutoGen Scheme Functions)
3. AutoGen DEFINE macros must be followed by a simple name. Anything after that is ignored. See section DEFINE - Define a user AutoGen macro.
4. The AutoGen COMMENT, ELSE, ESAC and the END* macros take no arguments and ignore everything after the macro name (e.g. see section COMMENT - A block of comment to be ignored)

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