PPWIZARD Manual
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Multi Line Macros

The subject of macros is reasonably complex (but well worth learning) please ensure you have at least read the macro introduction before reading this section.

Sometimes a macro contains quite a bit of text and to make it easier you might wish to spread the definition over a number of lines. This will also allow you to add comments and spacing to allow it to be easy to read.

When PPWIZARD sees a multi line macro (formatted in a similar manner to the example below - break after macro name) it breaks it up into multiple lines so that any imbedded PPWIZARD commands will get executed.

Note that for ppwizard commands (within a #define) to be executed when the macro is expanded the commands must be on their own line.

    ;--- Define the macro -------------------------------------
    #define FeedBackParagraphs                                        \
            ;---- First paragraph -----------------------------       \
            <P>I have put a lot of work into this produce and         \
               believe it to be of a very high standard.  I           \
               always appreciate feedback which indicates which       \
               features you use and like and which you don't          \
               like.                                                  \
                                                                      \
            ;---- Second paragraph ----------------------------       \
            <P>Please <A HREF="mailto:<$MyEmailAddress>">email me</A> \
               with tour comments.
    
    ;--- Use the macro ----------------------------------------
    <$FeedBackParagraphs>
    

Notice that the expanded "<$FeedBackParagraphs>" will refer to our previously defined "MyEmailAddress" macro. It is perfectly legal for a macro definition to refer to any number of other definitions.


[Top][Contents][Search][Prev]: Using Standard Definitions + Using REXX Logic[Next]: Macros With Mandatory Parameters

PPWIZARD Manual
My whole website and this manual itself was developed using PPWIZARD (free preprocessor written by Dennis Bareis)
Tuesday January 02 2001 at 7:37am