`@w'{TEXT}: Prevent Line Breaks
===============================
`@w{TEXT}' outputs TEXT and prohibits line breaks within TEXT.
You can use the `@w' command to prevent TeX from automatically
hyphenating a long name or phrase that happens to fall near the end of a
line. For example:
You can copy GNU software from @w{@samp{ftp.gnu.org}}.
produces
You can copy GNU software from `ftp.gnu.org'.
You can also use `@w' to produce a non-breakable space:
None of the formatters will break at this@w{ }space.