[Groff-commit] Changes to //var/cvs/groff

[wlemb]

Log from commit: 

Update of /var/cvs/groff/doc
In directory genba:/tmp/cvs-serv21359/doc

Modified Files:
        groff.texinfo 
Log Message:


Implement two new conditional operators `F <name>' and `S <name>'
which check whether <name> is a valid font or style, respectively.

* src/libs/libgroff/font.cpp (text_file): Add `silent' member.
(text_file::text_file): Updated.
(text_file::error): Don't emit message if `silent' is set.
(font::load_font): Add optional third argument (which is directly
passed to `load'.
(font::load): Add optional second argument to check the header of
a font only, without emitting warning or error messages.
* src/include/font.h (font): Updated.

* src/roff/troff/input.cpp (do_if_request): Implement `S' and `F'
conditionals.
* src/roff/troff/node.cpp (mount_font_no_translate): Add optional
fourth argument to check a font without mounting.
(check_font, check_style): New functions.
* src/roff/troff/node.h: Updated.

* man/groff_diff.man, man/groff.man, NEWS, doc/groff.texinfo:
Updated.