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|
\input texinfo @c -*-texinfo-*-
@node Top
@top Basic macro calls
Define a simple macro
@example
@@macro macro1 @{arg1, arg2 @}
result: @@emph@{\arg1\@} protected \\ -> \\arg1\\ @@emp@{\arg2\@}
@@end macro
@end example
before macro @macro macro1 { arg1 , arg2 }
result: @emph{\arg1\} protected \\ -> \\arg1\\ @emph{\arg2\}
@end macro after end macro
Calling (normal)
@example
the @@macro1 @{ @@samp@{f\irst arg@}, second arg @} after macro
@end example
==================================
the @macro1 { @samp{f\irst arg}, second arg } after macro
-----------------------------------
the result: @emph{@samp{first arg}} protected \ -> \arg1\ @emph{second arg } after macro
====================================
Calling (one arg)
@example
@@macro1 @{ @@samp@{f\irst arg@}@}
@end example
==================================
@macro1 { @samp{f\irst arg}}
-----------------------------------
result: @emph{@samp{first arg}} protected \ -> \arg1\ @emph{}
====================================
Calling (no args)
@example
@@macro1 @@samp@{f\irst arg@}, second arg
@end example
==================================
@macro1 @samp{f\irst arg}, second arg
-----------------------------------
result: @emph{} protected \ -> \arg1\ @emph{} @samp{f\irst arg}, second arg
====================================
@ifhtml
Calling (three args)
@example
@@macro1 @{ @@samp@{f\irst arg@}, second arg, third arg@}
@end example
==================================
@macro1 { @samp{f\irst arg}, second arg, third arg}
-----------------------------------
result: @emph{@samp{first arg}} protected \ -> \arg1\ @emph{second arg}
====================================
@end ifhtml
define a macro with one arg
@example
@@macro macro2 @{ arg @}
we get \arg\ and another \arg\
and a last one on another line \arg\
and a last in another paragraph
@@end macro
@end example
@macro macro2 { arg }
we get \arg\ and another \arg\
and another one on another line \arg\
and a last in another paragraph
@end macro
Calling
@example
@@macro2 @{ arg, comma \, @}
@end example
==================================
@macro2 { arg, comma \, }
-----------------------------------
we get arg, comma , and another arg, comma ,
and another one another line arg, comma ,
and a last in another paragraph
==================================
Calling
@example
@@macro2 arg, comma \,
@end example
==================================
@macro2 arg, comma \,
-----------------------------------
we get arg, comma \, and another arg, comma \,
and another one on another line arg, comma \,
and a last in another paragraph
==================================
@macro ab
a
b
@end macro
now @@set comma ,
@set comma ,
@@set flagab @@ab
@set flagab @ab
the values:
======================================
flagab: @value{flagab}
--------------------------------------
makeinfo result (the macro in set is expanded and all the resulting lines
are replaced):
flagab: a
b
======================================
comma: @value{comma}
Calling macro1 with value
@example
@@macro1 @{ arg1 @@value@{comma@} arg2 @}
@end example
=======================================
@macro1 { arg1 @value{comma} arg2 }
---------------------------------------
makeinfo result (the comma don't separate args ; the value is expanded after
arguments parsing):
result: @emph{arg1 , arg2 } protected \ -> \arg1\ @emph{}
=======================================
In verbatim
@verbatim
comma: @value{comma}
@macro1{ bidule, truc}
@end verbatim
@set argument arg
@set bodyarg \arg\
Define macro
@example
@@macro testvaluebody @{ arg @}
result: @@emph@{\@@value@{bodyarg@}\ @}
@@end macro
@end example
@macro testvaluebody { arg }
result: @emph{\@value{bodyarg}\ }
@end macro
==================================
@testvaluebody{macro_arg1}
----------------------------------
makeinfo result (according to error message, the value isn't expanded
when the body is expanded; it is kept, but the second \ isn't):
result: @emph{\\arg\ }
==================================
Define macro
@example
@@macro testvalue @{ arg , the@@value@{argument@} @}
result: @@emph@{\arg\@} the \the\ thearg \thearg\ with value \the@@value@{argument@}\
@@end macro
@end example
@macro testvalue { arg , the@value{argument} }
result: @emph{\arg\} the \the\ thearg \thearg\ with value \the@value{argument}\
@end macro
==================================
@testvalue{macro_arg1}
----------------------------------
makeinfo (breaks) result:
result: @emph{macro_arg1} the \the thearg \thearg with value \thearg
==================================
Define macro without arg
@example
@@macro test1
test1
@@end macro
@end example
@macro test1
test1
@end macro
Call with @{@}:
==================================
@test1{} abc
----------------------------------
test1 abc
==================================
Call with something on the line
==================================
@test1 abc
----------------------------------
test1 abc
==================================
An empty set value
@set myspace
1 @value{myspace} 1
@contents
@bye
|
