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(texinfo)Conditional Commands

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Conditional Commands
====================

  `@ifinfo' begins segments of text that should be ignored by TeX when
it typesets the printed manual.  The segment of text appears only in
the Info file.  The `@ifinfo' command should appear on a line by
itself; end the Info-only text with a line containing `@end ifinfo' by
itself.  At the beginning of a Texinfo file, the Info permissions are
contained within a region marked by `@ifinfo' and `@end ifinfo'. (Note:
Info Summary and Permissions.)

  The `@iftex' and `@end iftex' commands are similar to the `@ifinfo'
and `@end ifinfo' commands, except that they specify text that will
appear in the printed manual but not in the Info file.  Likewise for
`@ifhtml' and `@end ifhtml', which specify text to appear only in HTML
output.

  For example,

     @iftex
     This text will appear only in the printed manual.
     @end iftex
     @ifinfo
     However, this text will appear only in Info.
     @end ifinfo
     @ifhtml
     And this text will only appear in HTML.
     @end ifhtml

The preceding example produces the following line: However, this text
will appear only in Info.

Notice that you only see one of the input lines, depending on which
version of the manual you are reading.