! First, <#name#>, we will invoke the if_examples and
! the while_examples macros...
<# tmpl.if_examples; tmpl.while_examples #>
! Hey <#name#>, have you noticed that your name backwards is:
!<# eman:= ""; tmpl.reversestring(name, eman); eman; "\n"#>
<# tmpl.argumentlist("a", "b", "c")#>
<# endtmpl #>
<# argumentlist #>
<# if param[0] = 0; return; endif #>
! argumentList() was called with the following arguments:
<# while ++i <= param[0]#>
! <#param[i];"\n"#>
<# endwhile #>
<# endtmpl #>
<# reversestring (string, gnirts) #>
<# i := 0 + string; // i is now equal to the number of characters in string. #>
<# while --i >= 0; gnirts := gnirts $ substr(string, i, 1); endwhile #>
<# endtmpl #>
Example 2
The following macro in file macro1.mac invokes a macro from within another file,
macro2.mac:
<# callAnotherMacro #>
<# localVar := 5 #>
macro macro2.mac macroName2 <# localVar #> string1
<# endtmpl #>
This macro passes the value of localVar to macroName2. The value of localVar remains
at 5 for callAnotherMacro, regardless of any operations upon that variable in the second
macro. In other words, an invoked macro in another file cannot return any values to the
invoking macro.
The output of callAnotherMacro looks like this:
host1# macro verbose macro1.mac callAnotherMacro
host1#!Macro 'callAnotherMacro' in the file 'macro1.mac' starting execution (Id: 55)
macro macro2.mac macroName2 5 string1
!Macro 'macroName2' in the file 'macro2.mac' starting execution
!Macro 'macroName2' in the file 'macro2.mac' ending execution
host1#!Macro 'callAnotherMacro' in the file 'macro1.mac' ending execution (Id: 55)
The invoked macro cannot invoke a third macro from another file. Only a single level of
invocation is supported.
Detecting and Recording Macro Errors
You can control how a macro responds when an error occurs during execution. By creating
and adding an onError macro to your macro file, you can specify that, on the occurrence
of an error, macro execution within the current macro stops and the onError macro is
invoked. An onError macro can call other macros. If another error occurs after the onError
macro is invoked, macro execution stops again and the onError macro is invoked again.
This process continues either until the onError macro completes or until reaching the
recursion limit of 10.
Copyright © 2010, Juniper Networks, Inc.
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Summary of Contents for JUNOSE 11.3
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