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gslp.ps
% Copyright (C) 2001-2019 Artifex Software, Inc. % All Rights Reserved. % % This software is provided AS-IS with no warranty, either express or % implied. % % This software is distributed under license and may not be copied, % modified or distributed except as expressly authorized under the terms % of the license contained in the file LICENSE in this distribution. % % Refer to licensing information at http://www.artifex.com or contact % Artifex Software, Inc., 1305 Grant Avenue - Suite 200, Novato, % CA 94945, U.S.A., +1(415)492-9861, for further information. % % gslp.ps - format and print text % This utility provides functionality approximately equivalent to the Unix % `enscript' program. It prints plain text files using a single font. % It currently handles tabs and formfeeds, but not backspaces. % It will line-wrap when using fixed-pitch fonts. % It will also do kerning and width adjustment. % Standard switches implemented: % -12BclqRr -b<header> -f<font> -F<hfont> -L<lines> -p<outfile> % Sun switches implemented: % -T<n> set tab width % Switches ignored: % -GghKkmow -# -C -d -J -n -P -S -s -t -v % Switches added: % --add-to-space <units> % add the given number of 1/72" units to the width of each % space (may be negative) % --add-to-width <units> % add the given number of 1/72" units to the width of each % character (may be negative) % --columns <n> % print in <n> columns % --detect % treat the file as PostScript if it starts with %! % --first-page <n> % --duplex(|-long-edge|-short-edge) % use duplex if available; if not specified, select long edge % for portrait printing, short edge for landscape % start printing at page <n> % --kern <file.afm> % kern using information from the given .AFM file % --last-page <n> % stop printing after page <n> % --(heading|footing)-(left|center|right) <string> % set the heading/footing fields; use -B first to clear % --margin-(top|bottom|left|right) <inches> % set a margin % --no-eject-(file|formfeed) % end-of-file/FF only starts a new column, not a new sheet % --spacing <n> % use double (n=2), triple (n=3), etc. spacing % Also, the string %# in a heading or footing is replaced with the page #. /PageNumberString (%#) def /lpdict 150 dict def lpdict begin % build iso-latin-1 version of a font /font-to-iso-latin-1 { % <font> font-to-iso-latin-1 <font> %% reencode for iso latin1; from the 2nd edition red book, sec 5.6.1 dup length dict begin {1 index /FID ne {def} {pop pop} ifelse} forall /Encoding ISOLatin1Encoding def currentdict end dup /FontName get 80 string cvs (-ISOLatin1) concatstrings cvn exch definefont } def /find-latin-font { % <name> find-latin-font <font> findfont font-to-iso-latin-1 } def % Define the initial values of the printing parameters. /AddToSpace 0 def /AddToWidth 0 def /BodyFont null def % use default /defaultBodyFontPortrait /Courier find-latin-font 10 scalefont def /defaultBodyFontLandscape /Courier find-latin-font 7 scalefont def /defaultBodyFont { Landscape { defaultBodyFontLandscape } { defaultBodyFontPortrait } ifelse } def /Columns 1 def /DetectFileType false def /Duplex null def /EjectEOF true def /EjectFF true def /Footers false def /FootingLeft () def /FootingCenter () def /FootingRight () def /Headers true def /HeadingLeft () def /HeadingCenter () def /HeadingRight (page ) PageNumberString concatstrings def /HeadingFont null def % use default /defaultHeadingFont /Courier-Bold find-latin-font 10 scalefont def /Kern 0 dict def % no kerning /Landscape false def /MarginBottom 36 def % 1/2" /MarginLeft 36 def % 1/2" /MarginRight 36 def % 1/2" /MarginTop 36 def % 1/2" /MaxLines 9999 def % max lines per page /Noisy true def % i.e., not quiet /OutFile null def % null = write directly to device /PageFirst 1 def /PageLast 99999 def /Spacing 1 def /Tab 8 def /Truncate false def % wrap long lines, don't truncate % When writing to a file, we want to write out PostScript; % when writing to the printer, we want to execute it; % some commands should be executed regardless. % lpexec provides for all this. /lpdef { % <name> <value> lpdef - /def 2 true lpexec } def /lpexec { % <arg1> ... <argn> </op> <n> <do_always> lpexec - OutFile null eq { pop 1 add true } { /t exch def 1 add /n exch def cvx n -1 roll dup wo n 1 sub { n -1 roll dup wosp } repeat (\n) ws n t } ifelse { pop load exec } { { pop } repeat } ifelse } def /lpmoveto { % <x> <y> lpmoveto - % Round the coordinates for smaller output. 2 { exch 100 mul round 100 div dup dup cvi eq { cvi } if } repeat 1 index X eq { neg exch pop /V 1 } { neg /M 2 } ifelse true lpexec } def /lpshow { % <string> lpshow - dup length 0 ne { addspace 0 ne { addspace 0 32 addwidth 0 ne { addwidth 0 6 -1 roll /awidthshow 6 true lpexec } { 4 -1 roll /widthshow 4 true lpexec } ifelse } { addwidth 0 ne { addwidth 0 3 -1 roll /ashow 3 true lpexec } { OutFile null ne { dup dup length =string length gt { /show 1 false lpexec } { (S ) ws ws (\n) ws } ifelse } if show } ifelse } ifelse } { pop } ifelse } def /lpsetmyfont { dup load setfont OutFile null ne { cvx /setfont 1 false lpexec } { pop } ifelse } def % Define some utility procedures. /banner % ypos left center right { /HFont lpsetmyfont /addspace 0 def /addwidth 0 def /pairkern 0 dict def 3 -1 roll bannerstring pop 0 4 index pwidth showline2 pop exch bannerstring pwidth exch sub 2 div 3 index pwidth showline2 pop bannerstring % Prevent the last character of the heading from grazing % the right margin. % ****** WHY DOES IT REQUIRE SO MUCH PADDING? ****** ( ) stringwidth pop 2 mul add pwidth exch sub 3 -1 roll pwidth showline2 pop } def /bannerstring % string -> string width { PageNumberString search { exch pop pindex 4 string cvs concatstrings exch concatstrings } if dup stringwidth pop } def /beginpage { /lindex 0 def /skipping pindex PageFirst ge pindex PageLast le and not def pagex pagey Landscape {/BL} {/B} ifelse 2 true lpexec /pagesave exch def skipping { nulldevice /OutFile null def } if Headers { lheight hdescent add HeadingLeft HeadingCenter HeadingRight banner } if /BFont lpsetmyfont /pairkern Kern def /addspace AddToSpace def /addwidth AddToWidth def pairkern length 0 ne { /addspace AddToSpace lpdef /addwidth AddToWidth lpdef } if } def /endpage { lindex 0 ne { Footers { topskip plength sub hdescent add FootingLeft FootingCenter FootingRight banner } if /E } { /restore } ifelse pagesave exch 0 true lpexec /pindex pindex 1 add def } def /endcolumn { lindex colines 1 sub add colines idiv colines mul dup llength ge { pop endpage beginpage } { /lindex exch def } ifelse } def /fontheight % <font> fontheight <ascent> <height> { gsave setfont newpath 0 0 moveto (|^_j) false charpath pathbbox exch pop dup 2 index sub 4 -2 roll pop pop grestore exch 1.25 mul exch 1.25 mul } def /wdict { dup length wosp ( dict\n) ws { (dup) ws exch wosp wosp ( put\n) ws } forall } def /wosp { ( ) ws wo } def /wo { dup type /dicttype eq { wdict } { OutFile exch write==only } ifelse } def /ws { OutFile exch writestring } def /outfont { % <name> <font> outfont - OutFile null ne { exch wo dup /FontName get dup wosp (-ISOLatin1) ws wosp ( RE) ws /FontMatrix get 0 get 1000 mul round cvi wosp ( scalefont def\n) ws } { pop pop }ifelse } def /StringFF (\f) def /CharFF StringFF 0 get def /StringTAB (\t) def /CharTAB StringTAB 0 get def /showline % line -> leftover_line (handles \f) { { showline1 dup length 0 eq { exit } if dup 0 get CharFF ne { exit } if EjectFF { endpage beginpage } { endcolumn } ifelse skip1 } loop } def /showline1 % line -> leftover_line (handles page break) { lindex llength eq { endpage beginpage } if lindex colines idiv cowidth mul % x lindex colines mod 1 add lheight mul neg fascent sub % y 1 index cowidth add showline2 /lindex lindex 1 add def } def /setxy { /ty exch def /tx exch def } def /showline2 { % string x y xlimit -> leftover_string (handles tabs) 2 index exch 5 2 roll setxy { % Stack: xinit xlimit string showline3 dup length 0 eq { exit } if dup 0 get CharTAB ne { exit } if tx 3 index sub tabwx div 0.05 add ceiling tabwx mul 3 index add ty setxy skip1 tx 2 index ge { exit } if } loop exch pop exch pop } def /showline3 { % xlimit string -> xlimit leftover_string % (finds line break / tab / formfeed) 1 index tx sub cwx div 0.1 add cvi 0 .max 1 index length .min 1 index 0 3 -1 roll getinterval % look for \f or \t StringFF search { exch pop exch pop } if StringTAB search { exch pop exch pop } if dup length 0 ne { tx ty lpmoveto dup pairkern length 0 eq { lpshow } { { kproc } exch /kshow 2 true lpexec } ifelse currentpoint setxy } if length dup 2 index length exch sub getinterval } def /kproc { % <char1> <char2> kproc - pairkern currentfont /Encoding get 3 index get 2 copy known { get currentfont /Encoding get 2 index get 2 copy known { get currentfont /FontMatrix get 0 get mul } { pop pop 0 } ifelse } { pop pop 0 } ifelse addwidth add 2 index 32 eq { addspace add } if dup 0 eq { pop } { 0 rmoveto } ifelse pop pop } def /skip1 { dup length 1 sub 1 exch getinterval } def /e== { % <object> e== - -- print an object to stderr (%stderr) (w) file dup 3 -1 roll write==only flushfile } def /eprint { % <string> eprint - -- print a string to stderr (%stderr) (w) file dup 3 -1 roll writestring flushfile } def % Read kerning information from a .AFM file. /readkern { % <afmfile> readkern <pairkerndict> /mfilename 1 index def (r) file /mfile exch def mfile =string readline pop (StartFontMetrics ) anchorsearch { pop pop /kdict 256 dict def { mfile =string readline pop (EndFontMetrics) anchorsearch { pop pop exit } if (KPX ) anchorsearch { pop token pop cvlit /char1 exch def token pop cvlit /char2 exch def token pop /kern exch def pop kdict char1 .knownget not { 5 dict kdict char1 2 index .growput } if char2 kern .growput } { pop } ifelse } loop kdict } { pop mfilename eprint ( does not begin with StartFontMetrics.\n) eprint 0 dict } ifelse mfile closefile } def % The main printing procedure /doFirst true def /prevBFont null def /prevHFont null def /lpfirst { % - lpfirst - % Define some abbreviating procedures. /B {save 3 1 roll translate /X 0 def} lpdef /BL {save 3 1 roll 90 rotate translate /X 0 def} lpdef /P {/setpagedevice where {pop % <key> <value> P 5 dict begin 2 copy def /Policies 2 dict dup 4 index 1 put def currentdict end setpagedevice } {pop pop} ifelse} lpdef /E {showpage restore} lpdef /V {neg X exch moveto} lpdef /M {/X 2 index def neg moveto} lpdef /S {currentfile =string readline pop show} lpdef /RE { % <isoname> <fontname> RE <font> findfont %% reencode for iso latin1; from the 2nd edition red book, sec 5.6.1 dup length dict begin {1 index /FID ne {def} {pop pop} ifelse} forall /Encoding ISOLatin1Encoding def currentdict end definefont } lpdef } def /lp { % file initial_chars -> /lpline exch def /lpfile exch def doFirst { lpfirst /doFirst false def } if % Initialize the device and fonts. /BFont BodyFont null eq { defaultBodyFont } { BodyFont } ifelse def BFont prevBFont ne { /BFont BFont outfont /prevBFont BFont def } if Headers Footers or { /HFont HeadingFont null eq { defaultHeadingFont } { HeadingFont } ifelse def HFont prevHFont ne { /HFont HFont outfont /prevHFont HFont def } if } if save % Get the layout parameters. clippath gsave % for possible rotation Landscape { 90 rotate } if BFont setfont ( ) stringwidth pop /cwx exch def cwx Tab mul /tabwx exch def BFont fontheight /fheight exch def /fascent exch def Headers Footers or { HFont fontheight } { 0 0 } ifelse /hheight exch def /hascent exch def /hdescent hheight hascent sub def fheight Spacing mul /lheight exch def Headers { hheight lheight add } { 0 } ifelse /topskip exch def Footers { hheight lheight add } { 0 } ifelse /botskip exch def /pskip topskip botskip add def % Translate the page so that (0,0) corresponds to % the top of the topmost body line. pathbbox 2 index sub MarginBottom MarginTop add sub /plength exch def 2 index sub MarginLeft MarginRight add sub /pwidth exch def pwidth Columns div /cowidth exch def exch MarginLeft add exch MarginBottom add plength add topskip sub /pagey exch def /pagex exch def plength pskip sub lheight div cvi MaxLines .min dup /colines exch def Columns mul /llength exch def grestore OutFile null ne { nulldevice } if % Print layout Noisy { (Page height = ) eprint llength e== (.\n) eprint flush } if colines 1 lt cowidth 1 lt or { (Page too small, it must be large to hold at least one line of text\n) eprint (please specify a page size using for example -sPAPERSIZE=(a4|letter)\n) eprint /gslp.ps cvx /limitcheck signalerror } if % Set duplex if requested. Duplex null ne { /Duplex true /P 2 false lpexec /Tumble Duplex /P 2 false lpexec } if % Write the kerning table, if relevant. OutFile null ne Kern length 0 ne and { (/kproc) ws /kproc load wosp ( def\n) ws (/pairkern) ws Kern wosp ( def\n) ws } if % Disable stack recording so we can use stopped with readline. $error /recordstacks false put % Initialize for the first page. /lbuf 64000 string def /pindex 1 def beginpage % Iterate through the file. lpline { dup length /pos exch def lbuf exch 0 exch putinterval { lpfile lbuf pos lbuf length pos sub getinterval readline } stopped { % Filled the line before a CR or EOF. exch pop showline } { % Reached CR and/or EOF first. exch length pos add lbuf exch 0 exch getinterval 1 index { showline } if % omit final empty line { dup length 0 eq Truncate or { pop () exit } if showline } loop exch not { exit } if } ifelse pindex PageLast gt { exit } if } loop pop % Wrap up. %**************** WHY IS THIS COMMENTED OUT? **************** % EjectEOF { endpage } { endcolumn } ifelse endpage restore } def end % Usage: <file> lp % prints <file> using the current parameter settings. % Usage: [ <arg1> ... <argn> ] lpcommand % interprets args like a command line. /lp { save lpdict begin () lp end restore } def lpdict begin /splitfn % (FontNN.NN) -> <font> { dup /arg exch def length { dup 0 le { exit } if dup 1 sub arg exch get dup 48 ge 1 index 59 le and exch 46 eq or not { exit } if 1 sub } loop arg exch 0 exch getinterval dup cvn find-latin-font exch arg exch anchorsearch pop pop cvr scalefont } def % Parse the command line switches. /doswitch % argn ... arg1 (-?) restofswitch -> { exch dup cvn lpdict exch known { cvn load exec } { exch pop (Unknown switch: ) eprint eprint (\n) eprint } ifelse } def /more % argn ... arg1 restofswitch -> { dup length 0 ne { (- ) dup 1 3 index 0 get put exch dup length 1 sub 1 exch getinterval doswitch } { pop } ifelse } def /-- { (--) exch concatstrings dup cvn lpdict exch known { cvn load exec } { (Unknown switch: ) eprint eprint (\n) eprint } ifelse } def /--add-to-space { cvr /AddToSpace exch def } def /--add-to-width { cvr /AddToWidth exch def } def /--columns { cvi 1 .max /Columns exch def } def /--detect { /DetectFileType true def } def /--duplex { /Duplex {Landscape} def } def /--duplex-long-edge { /Duplex false def } def /--duplex-short-edge { /Duplex true def } def /--first-page { cvi /PageFirst exch def } def /--footing-center { /FootingCenter exch def /Footers true def } def /--footing-left { /FootingLeft exch def /Footers true def } def /--footing-right { /FootingRight exch def /Footers true def} def /--heading-center { /HeadingCenter exch def /Headers true def } def /--heading-left { /HeadingLeft exch def /Headers true def } def /--heading-right { /HeadingRight exch def /Headers true def } def /--kern { readkern /Kern exch def } def /--last-page { cvi /PageLast exch def } def /--margin-bottom { cvr 72.0 mul /MarginBottom exch def } def /--margin-left { cvr 72.0 mul /MarginLeft exch def } def /--margin-right { cvr 72.0 mul /MarginRight exch def } def /--margin-top { cvr 72.0 mul /MarginTop exch def } def /--no-eject-file { /EjectEOF false def } def /--no-eject-formfeed { /EjectFF false def } def /--spacing { cvr /Spacing exch def } def /-# { pop } def % ignore /-+ { -- } def (-1)cvn { /Columns 1 def more } def (-2)cvn { /Columns 2 def more } def /-b { /HeadingLeft exch def /HeadingCenter () def /HeadingRight PageNumberString def /Headers true def /break true def } def /-B { /HeadingLeft () def /HeadingCenter () def /HeadingRight () def /Headers false def /FootingLeft () def /FootingCenter () def /FootingRight () def /Footers false def /break true def more } def /-C { pop } def % ignore /-c { /Truncate true def more } def /-d { pop } def % ignore /-f { splitfn /BodyFont exch def } def /-F { splitfn /HeadingFont exch def } def /-G { more } def % ignore /-g { more } def % ignore /-h { more } def % ignore /-J { pop } def % ignore /-K { more } def % ignore /-k { more } def % ignore /-l { 66 -L -B } def /-L { cvi /MaxLines exch def } def /-m { more } def % ignore /-n { pop } def % ignore /-o { more } def % ignore /-p { (w) file /OutFile exch def OutFile (%!\n) writestring } def /-P { pop } def % ignore /-q { /Noisy false def more } def /-r { /Landscape true def more } def /-R { /Landscape false def more } def /-S { pop } def % ignore /-s { pop } def % ignore /-T { cvi /Tab exch def } def /-v { pop } def % ignore /-w { more } def % ignore /lp1 % filename -> { break not { dup /HeadingLeft exch def } if Noisy { (Printing ) eprint dup eprint (\n) eprint } if (r) file % If requested, check for a PostScript file. DetectFileType { dup 2 string readstring pop dup (%!) eq { % Yes, it's a PostScript file. pop dup 80 string readline pop pop cvx exec } { lp } ifelse } { () lp } ifelse } bind def /lpcstring 8192 string def end /lpcommand % <[arg1 ... argn]> lpcommand <any_printed> { % Push the commands on the stack in reverse order mark exch dup length 1 sub -1 0 { 1 index exch get exch } for pop lpdict begin /any false def /break false def { dup mark eq { pop exit } if dup length 2 ge { dup 0 get (-) 0 get eq } { false } ifelse { dup 0 2 getinterval exch dup length 2 sub 2 exch getinterval doswitch } { dup /matched false def { /matched true def /any true def lp1 } lpcstring filenameforall matched { pop } { lp1 } ifelse % let the error happen } ifelse } loop OutFile null ne { OutFile (%stdout) (w) file ne { OutFile closefile } if /OutFile null def } if any end } def [ .shellarguments { ] dup length 0 ne { lpcommand } { false } ifelse not { (%stderr) (w) file [ (Usage: ) /PROGNAME where { pop PROGNAME } { (gslp) } ifelse ( [-12BclqRr] [-b<header>] [-f<font>] [-F<hfont>]\n) ( [-L<lines>] [-p<outfile>] [-T<tabwidth>]\n) ( [--add-to-(space|width) <units>] [--columns <n>]\n) ( [--detect] [--first-page <page#>] [--last-page <page#>]\n) ( [--(heading|footing)-(left|right|center) <string>]\n) ( [--kern <afmfile>] [--margin-(top|bottom|left|right) <inches>]\n) ( [--no-eject-(file|formfeed)] [--spacing <n>] file1 ... filen\n) ] { 2 copy writestring pop } forall dup flushfile closefile } if } { pop } ifelse
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