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\ -> Configuration -> Configuration Macros -> HOOK_UNKNOWN_MACRO

HOOK_UNKNOWN_MACRO

This configuration macro allows you to intercept the error handling when a macro was not found. If the hook does not exist then PPWIZARD will simply abort displaying the usual error message.

The hook allow you to either supply a value for the non-existent variable or alter the error message. The hook should not perform any macro substitution.

This variable defines the name of a macro which contains the rexx code to be executed, this code should be "pre-expanded" (not contain any references to macros).

The rexx code gets passed these variables:

Example

;--- Define hook ------------------------------------------------------------
#DefineRexx 'HOOK_UNKNOWN_MACRO'
    ;--- Handle specifc variables -------------------------------------------
    if  translate(HookDefineName) = 'SOMEMACROWHICHWEWILLCONTINUEON' then
    do
        ;--- We will supply the value for this macro ------------------------
        HookDefineValue    = "{{This macro does not exist}}";
        HookDefineContinue = 'Y'
    end;

    ;--- Finished all known substitutions -----------------------------------
    if  HookDefineContinue = 'N' then    ;;Did we substitute a value?
    do
        ;--- Update the error message we will display -----------------------
        HookDefineValue = HookDefineValue || '0A0A'x || 'Perhaps this is an obsolete WISEINST variable?'
    end;
#DefineRexx

;--- Test Hook --------------------------------------------------------------
C. <$SomeMacroWhichWeWillContinueOn $$UPPER>
D. <$XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX>


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PPWIZARD Manual
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Sunday November 05 2017 at 10:00am