- expanding: ${perl{foo}{arg1}}
- result: Subroutine foo called with args: arg1
-considering: ${perl{foo_undef}}
-considering: foo_undef}}
- expanding: foo_undef
- result: foo_undef
-failed to expand: ${perl{foo_undef}}
- error message: Perl subroutine "foo_undef" returned undef to force failure
-failure was forced
-considering: ${perl{debug_write}{debug from Perl\n}}
-considering: debug_write}{debug from Perl\n}}
- expanding: debug_write
- result: debug_write
-considering: debug from Perl\n}}
- expanding: debug from Perl\n
- result: debug from Perl
+ |__expanding: ${perl{foo}{arg1}}
+ \_____result: Subroutine foo called with args: arg1
+ /considering: ${perl{foo_undef}}
+ /considering: foo_undef}}
+ |__expanding: foo_undef
+ \_____result: foo_undef
+ |failed to expand: ${perl{foo_undef}}
+ |___error message: Perl subroutine "foo_undef" returned undef to force failure
+ \failure was forced
+ /considering: ${perl{debug_write}{debug from Perl\n}}
+ /considering: debug_write}{debug from Perl\n}}
+ |__expanding: debug_write
+ \_____result: debug_write
+ /considering: debug from Perl\n}}
+ |__expanding: debug from Perl\n
+ \_____result: debug from Perl