Server : Apache/2.4.41 (Ubuntu) System : Linux absol.cf 5.4.0-198-generic #218-Ubuntu SMP Fri Sep 27 20:18:53 UTC 2024 x86_64 User : www-data ( 33) PHP Version : 7.4.33 Disable Function : pcntl_alarm,pcntl_fork,pcntl_waitpid,pcntl_wait,pcntl_wifexited,pcntl_wifstopped,pcntl_wifsignaled,pcntl_wifcontinued,pcntl_wexitstatus,pcntl_wtermsig,pcntl_wstopsig,pcntl_signal,pcntl_signal_get_handler,pcntl_signal_dispatch,pcntl_get_last_error,pcntl_strerror,pcntl_sigprocmask,pcntl_sigwaitinfo,pcntl_sigtimedwait,pcntl_exec,pcntl_getpriority,pcntl_setpriority,pcntl_async_signals,pcntl_unshare, Directory :  /usr/share/doc/m4/examples/

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traceon
changequote([,])dnl
changequote([``], [''])dnl
````traceon''''
define(``foo'', ````FOO'''')dnl
dumpdef(``foo'')dnl
changequote(``!'', ``!'')dnl
!foo!
foo
dumpdef(!foo!)dnl
define(!bar!, !BAR!)
bar
changequote(!>*>*>*>*>!, !<*<*<*<*<!)dnl five of each
>*>*>*>*>foo bar<*<*<*<*<
foo bar
>*>*>*>*>*>*><*<*<*<*<*<*<
dumpdef(>*>*>*>*>foo<*<*<*<*<, >*>*>*>*>bar<*<*<*<*<)dnl