Provided by: x11-utils_7.5+3_i386 bug

NAME

       xfd - display all the characters in an X font

SYNOPSIS

       xfd [-options ...] -fn fontname

       xfd [-options ...] -fa fontname

DESCRIPTION

       The  xfd utility creates a window containing the name of the font being
       displayed, a  row  of  command  buttons,  several  lines  of  text  for
       displaying character metrics, and a grid containing one glyph per cell.
       The characters are shown in increasing order from left to right, top to
       bottom.   The  first  character  displayed  at  the  top  left  will be
       character number 0 unless the -start option has been supplied in  which
       case  the  character with the number given in the -start option will be
       used.

       The characters are displayed in a grid of boxes, each large  enough  to
       hold  any  single character in the font.  Each character glyph is drawn
       using the PolyText16 request (used by the Xlib routine  XDrawString16).
       If  the  -box  option  is  given, a rectangle will be drawn around each
       character, showing where an  ImageText16  request  (used  by  the  Xlib
       routine   XDrawImageString16)   would  cause  background  color  to  be
       displayed.

       The origin of each glyph is normally set so that the character is drawn
       in  the  upper  left hand corner of the grid cell.  However, if a glyph
       has a negative left bearing or an unusually large ascent,  descent,  or
       right bearing (as is the case with cursor font), some character may not
       appear in their own grid cells.  The -center  option  may  be  used  to
       force all glyphs to be centered in their respective cells.

       All  the  characters in the font may not fit in the window at once.  To
       see the next page of glyphs, press the Next button at the  top  of  the
       window.   To  see  the  previous  page, press Prev.  To exit xfd, press
       Quit.

       Individual  character  metrics  (index,  width,  bearings,  ascent  and
       descent)  can  be displayed at the top of the window by clicking on the
       desired character.

       The font name displayed at the top of the window is the  full  name  of
       the  font,  as  determined  by  the  server.   See xlsfonts for ways to
       generate lists of fonts, as well as more detailed  summaries  of  their
       metrics and properties.

OPTIONS

       xfd accepts all of the standard toolkit command line options along with
       the additional options listed below:

       -fn font
               This option specifies  the  core  X  server  side  font  to  be
               displayed.   This  can  also  be  set  with  the  FontGrid font
               resource.  A font must be specified.

       -fa font
               This option specifies a Xft font to be displayed. This can also
               be  set with the FontGrid face resource. A font pattern must be
               specified.

       -box    This option indicates that a box should be displayed  outlining
               the  area  that  would  be  filled  with background color by an
               ImageText request.  This can also  be  set  with  the  FontGrid
               boxChars resource.  The default is False.

       -center This option indicates that each glyph should be centered in its
               grid.  This can also  be  set  with  the  FontGrid  centerChars
               resource.  The default is False.

       -start number
               This  option  specifies  the glyph index of the upper left hand
               corner of the  grid.   This  is  used  to  view  characters  at
               arbitrary locations in the font.  This can also be set with the
               FontGrid startChar resource.  The default is 0.

       -bc color
               This option specifies the color to be used if  ImageText  boxes
               are  drawn.   This  can  also be set with the FontGrid boxColor
               resource.

       -rows numrows
               This option specifies the number of rows in the grid.  This can
               also be set with the FontGrid cellRows resource.

       -columns numcols
               This  option specifies the number of columns in the grid.  This
               can also be set with the FontGrid cellColumns resource.

WIDGETS

       In order to specify resources, it is useful to know the  widgets  which
       compose xfd.  In the notation below, indentation indicates hierarchical
       structure.  The widget class name  is  given  first,  followed  by  the
       widget instance name.  The application class name is Xfd.

       Xfd  xfd
            Paned  pane
                 Label  fontname
                 Box  box
                      Command  quit
                      Command  prev
                      Command  next
                 Label  select
                 Label  metrics
                 Label  range
                 Label  start
                 Form  form
                      FontGrid  grid

FONTGRID RESOURCES

       The  FontGrid  widget is an application-specific widget, and a subclass
       of the Simple widget  in  the  Athena  widget  set.   The  effects  and
       instance  names  of  this  widget’s  resources are given in the OPTIONS
       section.  Capitalize the first letter of the resource instance name  to
       get the corresponding class name.

APPLICATION SPECIFIC RESOURCES

       The  instance  names  of  the  application specific resources are given
       below.  Capitalize the first letter of the resource  instance  name  to
       get  the  corresponding class name.  These resources are unlikely to be
       interesting unless you are localizing xfd for a different language.

       selectFormat
               Specifies  a  printf-style  format  string  used   to   display
               information  about  the  selected  character.   The  default is
               "character 0x%02x%02x (%u,%u) (%#o,%#o)".  The  arguments  that
               will  come  after the format string are char.byte1, char.byte2,
               char.byte1, char.byte2, char.byte1, char.byte2.  char.byte1  is
               byte  1 of the selected character.  char.byte2 is byte 2 of the
               selected character.

       metricsFormat
               Specifies  a  printf-style  format  string  used   to   display
               character  metrics.   The  default is "width %d; left %d, right
               %d; ascent %d, descent %d (font %d, %d)".  The  arguments  that
               will  come  after  the  format string are the character metrics
               width, lbearing, rbearing, character ascent, character descent,
               font ascent, and font descent.

       rangeFormat
               Specifies  a  printf-style  format  string  used to display the
               range of characters currently being displayed.  The default  is
               "range:  0x%02x%02x  (%u,%u)  thru  0x%02x%02x  (%u,%u)".   The
               arguments that will  come  after  the  format  string  are  the
               following  fields  from  the  XFontStruct that is returned from
               opening  the  font:  min_byte1,  min_char_or_byte2,  min_byte1,
               min_char_or_byte2,   max_byte1,  max_char_or_byte2,  max_byte1,
               max_char_or_byte2.

       startFormat
               Specifies  a  printf-style  format  string  used   to   display
               information about the character at the upper left corner of the
               font grid.  The default is "upper left: 0x%04x  (%d,%d)".   The
               arguments  that  will  come after the format string are the new
               character, the high byte of the new character, and the low byte
               of the new character.

       nocharFormat
               Specifies  a  printf-style  format  string  to display when the
               selected character does not exist.  The  default  is  "no  such
               character  0x%02x%02x  (%u,%u)  (%#o,%#o)".  The arguments that
               will come after the format string  are  the  same  as  for  the
               selectFormat resource.

SEE ALSO

       X(7),  xlsfonts(1), xrdb(1), xfontsel(1), fontconfig(3), X Logical Font
       Description Conventions

BUGS

       The program should skip over pages full of non-existent characters.

AUTHOR

       Jim Fulton, MIT X Consortium; previous program of the same name by Mark
       Lillibridge, MIT Project Athena.