@iftex
@macro e{a}
(@email{\a\})
@end macro
@end iftex
@ifnottex
@macro e{a}
@email{\a\}
@end macro
@end ifnottex

@iftex
@macro xcode{a}
@code{\a\}
@end macro
@end iftex
@ifnottex
@macro xcode{a}
\a\
@end macro
@end ifnottex

@iftex
@macro xtext{a}
@rm{}\a\@tt{}
@end macro
@end iftex
@ifnottex
@macro xtext{a}
\a\
@end macro
@end ifnottex