NAME

vwidth − make troff width table for a font

SYNOPSIS

vwidth fontfile pointsize > ftxx.c
cc -c ftxx.c
mv ftxx.o /usr/lib/font/ftxx

DESCRIPTION

Vwidth translates width information stored in the vfont style format to the object file format expected by troff.  Troff wants an object file in a.out(5) format.  (This fact does not seem to be documented anywhere.)  Troff should look directly in the font file but it doesn’t. 

Use vwidth after editing a font with fed(1).  You don’t need to use vwidth unless you have made a change that would affect the width tables.  Such changes include numerically editing the width field, adding a new character, and moving or copying a character to a new position.  It is not always necessary to use vwidth if the physical width of the glyph (e.g. the number of columns in the bit matrix) has changed; however, if the physcial width has changed much the logical width should probably be changed as well and vwidth should be run. 

Vwidth produces a C program on its standard output.  Run this program through the C compiler and save the object file (that is, the resulting .o file).  Place the object file in /usr/lib/font in the file ftxx where is a one or two letter code that is the logical (internal to troff) font name.  This name can be found by looking in the file /usr/lib/fontinfo/fname∗ where fname is the external name of the font. 

SEE ALSO

fed(1), troff(1), vtroff(1) vfont(5),

BUGS

Produces the C file using obsolete syntax that the portable C compiler complains about. 

5 BSD  —  April 29, 1985