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Editing: pf2afm.ps
%! % This is a PostScript program for making an AFM file from % PFB / PFA and (optionally) PFM files. % % Written in BOP s.c., Gda\'nsk, Poland % e-mail contact: B.Jackowski@GUST.ORG.PL % version 0.5 (18 XII 1997) % version 0.55 (11 III 1998) -- unlimited number of chars in a font % version 1.00 (27 III 1998) -- scanning PFM subdirectory added, % code improved; version sent to LPD % version 1.01 (1 II 2000) -- message changed % Usage: % gs [-dNODISPLAY] -- pf2afm.ps disk_font_name % % The result is written to the file disk_font_name.afm, provided such % a file does not exist; otherwise program quits. % % The font can be either *.pfa or *.pfb; if no extension is supplied, % first disk_font_name.pfb is examined, then disk_font_name.pfa. % Moreover, if there is a *.pfm file in the same directory or in the % subdirectory PFM, i.e., disk_font_name.pfm or PFM/disk_font_name.pfm, % kern pairs from it are extracted, as well as additional font % parameters, usually absent from Type 1 fonts. % Tribute: % The program is based on James Clark's <jjc@jclark.uucp> printafm.ps % (with alterations by d.love@dl.ac.uk and L. Peter Deutsch) from % Ghostscript 5.10 distribution. /onechar 1 string def /edef {exch def} def /WinAnsiEncoding dup /Encoding findresource def % charnumber print-charname - % prints the name of the encoded character /print-charname { PFMCharSet 0 eq { WinAnsiEncoding } { PFBencoding } ifelse exch get =string cvs dup (.notdef) eq { /was.notdef true def } if print.to.ofi ( ) print.to.ofi } def /printquit {print flush quit} def % redirecting GS output to ``ofi'' file /eolch (\r\n) def /=only.to.ofi {ofi exch write=only} def % replaces GS's `=only' /print.to.ofi {ofi exch writestring} def % replaces `print' /=to.ofi { =only.to.ofi eolch print.to.ofi } def % replaces `=' % read and skip: byte, short, word, double and long /readb-p {currPFMfile read not {(Unexpected EOF\n) printquit} if} def /readw-p {readb-p readb-p 256 mul add} def /reads-p {readw-p dup 32768 ge {65536 sub} if} def /readd-p {readb-p readb-p readb-p readb-p 256 mul add 256 mul add 256 mul add} def /readl-p /readd-p load def % double word is, in fact, long integer in GS /skipb-p {readb-p pop} def /skipw-p {skipb-p skipb-p} def /skips-p /skipw-p load def /skipd-p {skipb-p skipb-p skipb-p skipb-p} def /skipl-p /skipd-p load def /skipa-p { {skipb-p} repeat} def % PFMfile readPFMheader - % defines currPFMfile, PFMExtMetricOffset, PFMPairKernTableOffset /readPFMheader { currPFMfile bytesavailable % --------------- % PFM MAIN HEADER % --------------- skipw-p % PFM: version readd-p % PFM: size (size is dword, not word as the documentation says) ne {(Wrong file size\n) printquit} if 60 skipa-p % PFM: copyright skipw-p % PFM: Type skipw-p % PFM: Points skipw-p % PFM: VertRes skipw-p % PFM: HorizRes skipw-p % PFM: Ascent skipw-p % PFM: InternalLeading skipw-p % PFM: ExternalLeading skipb-p % PFM: Italic skipb-p % PFM: Underline skipb-p % PFM: Stikeout skipw-p % PFM: Weight readb-p % PFM: CharSet /PFMCharSet edef skipw-p % PFM: PixWidth skipw-p % PFM: PixHeight skipb-p % PFM: PitchAndFamily skipw-p % PFM: AvgWidth skipw-p % PFM: MaxWidth skipb-p % PFM: FirstChar skipb-p % PFM: LastChar skipb-p % PFM: DefaultChar skipb-p % PFM: BreakChar skipw-p % PFM: WidthBytes skipd-p % PFM: Device skipd-p % PFM: Face skipd-p % PFM: BitsPointer skipd-p % PFM: BitsOffset % here we assume that it is a PostScript font, i.e., it always uses % the extended width table, therefore the normal width table is empty % ------------- % PFM EXTENSION % ------------- skipw-p % PFMEX: SizeFields readd-p % PFMEX: ExtMetricOffset /PFMExtMetricOffset edef skipd-p % PFMEX: ExtentTable skipd-p % PFMEX: OriginTable readd-p % PFMEX: PairKernTable /PFMPairKernTableOffset edef skipd-p % PFMEX: TrackKernTable skipd-p % PFMEX: DriverInfo skipd-p % PFMEX: Reserved } def % requires that currPFMfile, PFMExtMetricOffset are defined % readPFMExtMetric - % defines PFMNumberofKernPairs /readPFMExtMetric { currPFMfile PFMExtMetricOffset setfileposition skips-p % EXTT: Size skips-p % EXTT: PointSize skips-p % EXTT: Orientation skips-p % EXTT: MasterHeight skips-p % EXTT: MinScale skips-p % EXTT: MaxScale skips-p % EXTT: MasterUnit reads-p % EXTT: CapHeight /PFMCapHeight edef reads-p % EXTT: XHeight /PFMXHeight edef reads-p % EXTT: LowerCaseAscent /PFMLowerCaseAscent edef reads-p % EXTT: LowerCaseDescent neg /PFMLowerCaseDescent edef skips-p % EXTT: Slant skips-p % EXTT: SuperScript skips-p % EXTT: SubScript skips-p % EXTT: SuperScriptSize skips-p % EXTT: SubScriptSize skips-p % EXTT: UnderlineOffset skips-p % EXTT: UnderlineWidth skips-p % EXTT: DoubleUpperUnderlineOffset skips-p % EXTT: DoubleLowerUnderlineOffset skips-p % EXTT: DoubleUpperUnderlineWidth skips-p % EXTT: DoubleLowerUnderlineWidth skips-p % EXTT: StrikeOutOffset skips-p % EXTT: StrikeOutWidth readw-p % EXTT: KernPairs /PFMNumberofKernPairs edef skipw-p % EXTT: KernTracks } def % requires that currPFMfile, PFMPairKernTableOffset, PFMNumberofKernPairs are defined % readPFMExtMetric - % prints kern pairs table in the AFM format /readPFMKernPairs { currPFMfile () ne { PFMdict begin PFMPairKernTableOffset 0 ne { currPFMfile PFMPairKernTableOffset setfileposition readw-p % undocumented kern count (although all remaining structures are % explicitly preceded by their sizes); if it were a stable % feature, EXTTEXTMETRICS could be skipped PFMNumberofKernPairs % 2 copy = = ne { (Inconsistent number of kern pairs\n) printquit } if (StartKernData) =to.ofi (StartKernPairs ) print.to.ofi PFMNumberofKernPairs =to.ofi % --------- % MAIN LOOP % --------- /was.notdef false def PFMNumberofKernPairs { (KPX ) print.to.ofi readb-p % first char print-charname readb-p % second char print-charname reads-p % kern amount =to.ofi } repeat was.notdef { (.notdef character ocurred among kern pairs) = (you'd better check the resulting AFM file.) = } if (EndKernPairs) =to.ofi (EndKernData) =to.ofi } if end } if } def % alias (for ``compatibility'' with J. Clark): /printkernpairs /readPFMKernPairs load def % printcharmetrics - /printcharmetrics { (StartCharMetrics ) print.to.ofi /PFBencoding currfont /Encoding get dup length array copy def /PFBcharstrings currfont /CharStrings get def PFBcharstrings length PFBcharstrings /.notdef known { 1 sub } if =to.ofi currfont 1000 scalefont setfont % checking Encoding array and CharStrings dictionary for % the consistency of names /was.inconsitent false def 0 1 255 { dup PFBencoding exch get PFBcharstrings exch known { pop }{ % dup PFBencoding exch get = PFBencoding exch /.notdef put % fix Encoding array /was.inconsitent true def } ifelse } for was.inconsitent { (Encoding array contains name(s) absent from CharStrings dictionary) = } if % print metric data for each character in PFB encoding vector 0 1 255 { dup PFBencoding exch get dup /.notdef ne { exch dup printmetric }{ pop pop } ifelse } for % xPFBencoding contains an entry for each name in the original % encoding vector /xPFBencoding PFBcharstrings length dict def PFBencoding { xPFBencoding exch true put } forall /fontiter 0 def /TMPFontTemplate (TMP_FONT#000) def { % NewPFBencoding is the new encoding vector /NewPFBencoding 256 array def 0 1 255 { NewPFBencoding exch /.notdef put } for % fill up NewPFBencoding with names from CharStrings dictionary that % are not encoded so far /i 0 def PFBcharstrings { pop i 255 le { dup xPFBencoding exch known not { dup xPFBencoding exch true put NewPFBencoding i 3 -1 roll put /i i 1 add def }{ pop } ifelse }{ pop exit } ifelse } forall i 0 eq {exit} if % define a new font with NewPFBencoding as its encoding vector currfont maxlength dict /NewTMPfont edef currfont { exch dup dup /FID ne exch /Encoding ne and { exch NewTMPfont 3 1 roll put }{ pop pop } ifelse } forall % compute a unique name for a font to be registered /fontiter fontiter 1 add def TMPFontTemplate fontiter (000) cvs dup length TMPFontTemplate length exch sub exch putinterval /TMPFontName TMPFontTemplate cvn def NewTMPfont /FontName TMPFontName put NewTMPfont /Encoding NewPFBencoding put % make this new font the current font TMPFontName NewTMPfont definefont 1000 scalefont setfont % print metric data for each character in the newly created encoding vector 0 1 255 { dup NewPFBencoding exch get dup /.notdef ne { exch -1 printmetric }{ pop pop exit } ifelse } for i 255 lt {exit} if } loop (EndCharMetrics) =to.ofi } def % name actual_code normal_code printmetric - /printmetric { (C ) print.to.ofi =only.to.ofi ( ; WX ) print.to.ofi onechar 0 3 -1 roll put onechar stringwidth pop round cvi =only.to.ofi ( ; N ) print.to.ofi =only.to.ofi ( ; B ) print.to.ofi newpath 0 0 moveto onechar false charpath flattenpath pathbbox newpath round cvi /ury edef round cvi /urx edef round cvi /lly edef round cvi /llx edef ury lly eq {/ury 0 def /lly 0 def} if % normalize degenrated BB urx llx eq {/urx 0 def /llx 0 def} if % llx =only.to.ofi ( ) print.to.ofi lly =only.to.ofi ( ) print.to.ofi urx =only.to.ofi ( ) print.to.ofi ury =only.to.ofi ( ) print.to.ofi (;) =to.ofi } def /printinfoitem { 3 1 roll 2 copy known { get dup type /stringtype ne { =string cvs } if exch print.to.ofi ( ) print.to.ofi =to.ofi }{ pop pop pop } ifelse } def /printfontinfo { (Comment AFM Generated by Ghostscript/pf2afm) =to.ofi currfont /FontName (FontName) printinfoitem % currfont /FontInfo get dup /FullName (FullName) printinfoitem dup /FamilyName (FamilyName) printinfoitem dup /Weight (Weight) printinfoitem dup /Notice (Notice) printinfoitem dup /ItalicAngle (ItalicAngle) printinfoitem dup /isFixedPitch (IsFixedPitch) printinfoitem dup /UnderlinePosition (UnderlinePosition) printinfoitem dup /UnderlineThickness (UnderlineThickness) printinfoitem /version (Version) printinfoitem % (EncodingScheme FontSpecific) =to.ofi % (FontBBox) print.to.ofi currfont /FontBBox get { ( ) print.to.ofi round cvi =only.to.ofi } forall eolch print.to.ofi % currPFMfile () ne { PFMdict dup /PFMCapHeight (CapHeight) printinfoitem dup /PFMXHeight (XHeight) printinfoitem dup /PFMLowerCaseDescent (Descender) printinfoitem /PFMLowerCaseAscent (Ascender) printinfoitem } if } def /readPFBfile { % make a shot of the actual font directory: /oldFontDirectory FontDirectory dup length dict copy def isPFB {% defined in `makeafm' (r) file true /PFBDecode filter cvx % true is better (see gs_type1.ps) mark exch exec }{ (r) file mark exch run } ifelse cleartomark % make a shot of the updated font directory: /newFontDirectory FontDirectory dup length dict copy def % spot the added font: oldFontDirectory {pop newFontDirectory exch undef} forall newFontDirectory length 1 ne { newFontDirectory length = (Weird PFB file?\n) printquit } if newFontDirectory {pop} forall findfont /currfont edef } def /readPFMfile { dup () ne { (r) file /currPFMfile edef 10 dict dup /PFMdict edef begin readPFMheader readPFMExtMetric end }{ pop /currPFMfile () def } ifelse } def % pfmfilename pf[ba]filename filetype printafm - % where filetype=(a) or (b) /printafm { readPFBfile readPFMfile (StartFontMetrics 2.0) =to.ofi printfontinfo printcharmetrics printkernpairs (EndFontMetrics) =to.ofi } def /pfa_pfb_dict << /.pfb /pfbn /.pfB /pfbn /.pFb /pfbn /.pFB /pfbn /.Pfb /pfbn /.PfB /pfbn /.PFb /pfbn /.PFB /pfbn /.pfa /pfan /.pfA /pfan /.pFa /pfan /.pFA /pfan /.Pfa /pfan /.PfA /pfan /.PFa /pfan /.PFA /pfan >> readonly def % Check whether the file name has pfa or pfb extension. /pfa_or_pfb? { % s -> false | /name true dup length 4 lt { pop //false } { dup length 4 sub 4 getinterval //pfa_pfb_dict exch .knownget } ifelse } bind def % pf[ba]filename makeafm - /makeafm { count 0 eq {(Missing font file name\n) printquit} if /ifn edef ifn length 0 eq {(Empty font file name\n) printquit} if % the following piece of the code does, in fact, the job of a system shell, % i.e., it analyses the supplied names, appends extensions if needed, % and check files: /pfbn () def /pfan () def /pfmn () def % initialisation [ t1_glyph_equivalence { pop } forall ] { % disable glyph substitution t1_glyph_equivalence exch undef } forall ifn pfa_or_pfb? { ifn dup length string copy def ifn dup length 4 sub 0 exch getinterval /ifn edef } if pfbn () eq pfan () eq and dup {% no extension was supplied, try ".pfb" /pfbn ifn (.pfb) concatstrings def } if pfbn () ne {% check whether "filename.pfb" exists pfbn status {pop pop pop pop /isPFB true def}{/pfbn () def} ifelse } if pfbn () eq and {% checking "filename.pfb" unsuccessful, try ".pfa" /pfan ifn (.pfa) concatstrings def } if pfan () ne {% check whether "filename.pfa" exists pfan status {pop pop pop pop /isPFB false def}{/pfan () def} ifelse } if pfbn () eq pfan () eq and { (Neither pfa nor pfb found\n) printquit } if /ofn ifn (.afm) concatstrings def ofn status { pop pop pop pop (Resulting file exists\n) printquit } if /ofi ofn (w) file def /pfmn ifn (.pfm) concatstrings def pfmn status { pop pop pop pop }{ () pfmn { (/) search dup not { pop (\\) search } if { 4 -1 roll exch concatstrings exch concatstrings exch }{ exit } ifelse } loop (pfm/) exch concatstrings concatstrings dup status { pop pop pop pop /pfmn edef }{ pop /pfmn () def (pfm file not found -- ignored\n) print } ifelse } ifelse //systemdict /.setsafe known { << /PermitFileReading [ pfmn dup length 0 eq { pop } if isPFB {pfbn}{pfan} ifelse ] /PermitFileWriting [ ] /PermitFileControl [ ] >> setuserparams .locksafe } if pfmn isPFB {pfbn}{pfan} ifelse printafm } def % Check for command line arguments. [ .shellarguments { ] dup length 1 eq { 0 get makeafm }{ (This is PF2AFM -- AFM generator \(ver. 1.00\)\n) print (Usage: gs [-dNODISPLAY] -- pf2afm.ps disk_font_name\n) printquit } ifelse } {pop} ifelse
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