texinfo: @deffnx

Definition Commands

Def Cmds in Detail

Optional Arguments

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16.4 '@deffnx', et al.: Two or More 'First' Lines
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To create two or more 'first' or header lines for a definition, follow
the first '@deffn' line by a line beginning with '@deffnx'.  The
'@deffnx' command works exactly like '@deffn' except that it does not
generate extra vertical white space between it and the preceding line.

  For example,

     @deffn {Interactive Command} isearch-forward
     @deffnx {Interactive Command} isearch-backward
     These two search commands are similar except ...
     @end deffn

produces

 -- Interactive Command: isearch-forward
 -- Interactive Command: isearch-backward
     These two search commands are similar except ...

  Each definition command has an 'x' form: '@defunx', '@defvrx',
'@deftypefunx', etc.

  The 'x' forms work similarly to '@itemx' (Note: @itemx).