is the GNU
documentation system, used for documenting GNU projects including Emacs
. It uses a single source file to produce .info
files, GNU's own pre-HTML hypertext
file format, HTML
, and printed output via TeX
. Instead of writing multiple different documents for for online information and printed manuals, you need write only one document. When the work is revised, you need revise only one that one document.
Info files, the GNU documentation format, can be viewed with the
info program or the info function in Emacs (
C-x info). The online manuals on the GNU website (http://www.gnu.org/manual/manual.html) are largely texinfo.
Generating documentation in info or HTML format is done with the
makeinfo program. Printed documentation is generated with
texi2dvi, which produces a printable DVI file.