We very urgently need documentation for many existing parts of the
system.
Note that there are proprietary manuals for many of these topics, but
proprietary manuals do not count, for the same reason proprietary
software does not count: we are not free to copy and modify them.
We do not recommend any non-free materials as documentation.
A reference document for SQL for use as a standard for implementors of
free software versions of SQL.
A manual for libstdc++.
A unified manual for LaTeX. (Existing documentation is non-free.)
A manual for Docbook SGML format.
A tutorial introduction to Midnight Commander.
A thorough manual for RCS.
A reference manual for Mach.
A reference manual for the GNU Hurd features in GNU libc.
A manual for writing Hurd servers.
A manual for GNU sed.
Reference manuals for C++, Objective C, Pascal, Fortran 77, and Java.
A tutorial manual for the C++ STL (standard template library).
A tutorial manual for Gforth.
GNU Objective-C Runtime Library Manual; this would be a reference manual
for the runtime library functions, structures, and classes. Some work
has been done on this job.
Manuals for GNUstep: developer tutorial, developer programming manual,
developer reference manual, and user manual.
A manual for Ghostscript.
A manual for TCSH.
A coherent free reference manual for Perl. Most of the Perl on-line
reference documentation can be used as a starting point, but work is
needed to weld them together into a coherent manual.
A good free Perl language tutorial introduction. The existing Perl
introductions are published with restrictions on copying and
modification, so that they cannot be part of a GNU system. bkuhn made a
start at a free tutorial, but a lot of work is needed.
A manual for PIC (the graphics formatting language).
A book on how GCC works and why various machine descriptions
are written as they are.
A manual for programming applications for X11.
Manuals for various X window managers.
Reference cards for those manuals that don't have them: C
Compiler, Make, Texinfo, Termcap, and maybe the C Library.
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