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(groff)groff Capabilities

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`groff' Capabilities
====================

   So what exactly is `groff' capable of doing?  `groff' provides a
wide range of low-level text formatting operations.  Using these, it is
possible to perform a wide range of formatting tasks, such as
footnotes, table of contents, multiple columns, etc.  Here's a list of
the most important operations supported by `groff':

   * text filling, adjusting, and centering

   * hyphenation

   * page control

   * font and character size control

   * vertical spacing (i.e. double spacing)

   * line length and indenting

   * macros, strings, diversions, and traps

   * number registers

   * tabs, leaders, and fields

   * input and output conventions and character translation

   * overstrike, bracket, line drawing, and zero-width functions

   * local horizontal and vertical motions and the width function

   * three-part titles

   * output line numbering

   * conditional acceptance of input

   * environment switching

   * insertions from the standard input

   * input/output file switching

   * output and error messages