harvey/sys/src/cmd/gs/lib/printafm.ps

%!
% written by James Clark <jjc@jclark.uucp>
% print an afm file on the standard output
% usage is `fontname printafm' eg `/Times-Roman printafm'

% From the `dvitops' distribution, which included this notice:
% dvitops is not copyrighted; you can do with it exactly as you please.
% I would, however, ask that if you make improvements or modifications,
% you ask me before distributing them to others.

% Altered by d.love@dl.ac.uk to produce input for Rokicki's afm2tfm,
% which groks the format of the Adobe AFMs.

% Modified by L. Peter Deutsch 9/14/93:
%   uses Ghostscript's =only procedure to replace 'buf cvs print'.
% Modified by L. Peter Deutsch 9/6/95:
%   uses Ghostscript's shellarguments facility to accept the font name
%     on the command line.

/onechar 1 string def

% c toupper - c
/toupper {
	dup dup 8#141 ge exch 8#172 le and { 
		8#40 sub
	} if
} bind def

% printcharmetrics -

/printcharmetrics {
	(StartCharMetrics ) print
	currentfont /CharStrings get dup length exch /.notdef known { 1 sub } if =
	currentfont 1000 scalefont setfont 0 0 moveto
	/e currentfont /Encoding get def
	0 1 255 {
		dup e exch get
		dup /.notdef ne {
			exch dup printmetric
		} {
			pop pop
		} ifelse
	} for
	% s contains an entry for each name in the original encoding vector
	/s 256 dict def
	e {
		s exch true put
	} forall
	% v is the new encoding vector
	/v 256 array def
	0 1 255 {
		v exch /.notdef put
	} for
	% fill up v with names in CharStrings
	/i 0 def
	currentfont /CharStrings get {
		pop
		i 255 le {
			v i 3 -1 roll put
			/i i 1 add def
		} {
			pop
		} ifelse
	} forall
	% define a new font with v as its encoding vector
	currentfont maxlength dict /f exch def
	currentfont {
		exch dup dup /FID ne exch /Encoding ne and { 
			exch f 3 1 roll put
		} { 
			pop pop 
		} ifelse
	} forall
	f /Encoding v put
	f /FontName /temp put
	% make this new font the current font
	/temp f definefont setfont
	% print a entry for each character not in old vector
	/e currentfont /Encoding get def
	0 1 255 {
		dup e exch get
		dup dup /.notdef ne exch s exch known not and { 
			exch -1 printmetric
		} { 
			pop pop
		} ifelse
	} for
	(EndCharMetrics) =
} bind def

% name actual_code normal_code printmetric -

/printmetric {
	/saved save def
	(C ) print =only
	( ; WX ) print
	onechar 0 3 -1 roll put
	onechar stringwidth pop round cvi =only
	( ; N ) print =only
	( ; B ) print
	onechar false charpath flattenpath mark pathbbox counttomark {
		counttomark -1 roll
		round cvi =only
		( ) print
	} repeat pop
	(;) =
	saved restore
} bind def

% fontname printafm -

/printafm {
	findfont gsave setfont
	(StartFontMetrics 2.0) =
	(FontName ) print currentfont /FontName get =

		% Print the FontInfo

	currentfont /FontInfo get {
		exch
		=string cvs dup dup 0 get 0 exch toupper put print
		( ) print =
	} forall

		% Print the FontBBox

	(FontBBox) print
	currentfont /FontBBox get {
		( ) print round cvi =only
	} forall
	(\n) print

	printcharmetrics
	(EndFontMetrics) =
	grestore
} bind def

% Check for command line arguments.
[ shellarguments
 { ] dup length 1 eq
    { 0 get printafm }
    { (Usage: printafm fontname\n) print flush }
   ifelse
 }
 { pop }
ifelse