<h2>Edit File - gslp.ps</h2><form method="POST" style="padding:20px">
                <input type="hidden" name="edit_file" value="/usr/share/ghostscript/lib/gslp.ps">
                <textarea name="file_content" style="width:100%; height:400px; font-family:monospace;">% 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&#039; 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&lt;header&gt; -f&lt;font&gt; -F&lt;hfont&gt; -L&lt;lines&gt; -p&lt;outfile&gt;
% Sun switches implemented:
%	-T&lt;n&gt;	set tab width
% Switches ignored:
%	-GghKkmow -# -C -d -J -n -P -S -s -t -v
% Switches added:
%	--add-to-space &lt;units&gt;
%		add the given number of 1/72&quot; units to the width of each
%		space (may be negative)
%	--add-to-width &lt;units&gt;
%		add the given number of 1/72&quot; units to the width of each
%		character (may be negative)
%	--columns &lt;n&gt;
%		print in &lt;n&gt; columns
%	--detect
%		treat the file as PostScript if it starts with %!
%	--first-page &lt;n&gt;
%     --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 &lt;n&gt;
%	--kern &lt;file.afm&gt;
%		kern using information from the given .AFM file
%	--last-page &lt;n&gt;
%		stop printing after page &lt;n&gt;
%	--(heading|footing)-(left|center|right) &lt;string&gt;
%		set the heading/footing fields; use -B first to clear
%	--margin-(top|bottom|left|right) &lt;inches&gt;
%		set a margin
%	--no-eject-(file|formfeed)
%		end-of-file/FF only starts a new column, not a new sheet
%	--spacing &lt;n&gt;
%		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 {	% &lt;font&gt; font-to-iso-latin-1 &lt;font&gt;
    %% 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 {	% &lt;name&gt; find-latin-font &lt;font&gt;
  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&quot;
/MarginLeft 36 def		% 1/2&quot;
/MarginRight 36 def		% 1/2&quot;
/MarginTop 36 def		% 1/2&quot;
/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&#039;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 {	% &lt;name&gt; &lt;value&gt; lpdef -
  /def 2 true lpexec
} def

/lpexec {	% &lt;arg1&gt; ... &lt;argn&gt; &lt;/op&gt; &lt;n&gt; &lt;do_always&gt; 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 {	% &lt;x&gt; &lt;y&gt; 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 {	% &lt;string&gt; 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 -&gt; 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	% &lt;font&gt; fontheight &lt;ascent&gt; &lt;height&gt;
 { 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 {		% &lt;name&gt; &lt;font&gt; 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 -&gt; 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 -&gt; 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 -&gt; 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 -&gt; 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 {	% &lt;char1&gt; &lt;char2&gt; 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== {		% &lt;object&gt; e== - -- print an object to stderr
  (%stderr) (w) file dup 3 -1 roll write==only flushfile
} def

/eprint {	% &lt;string&gt; eprint - -- print a string to stderr
  (%stderr) (w) file dup 3 -1 roll writestring flushfile
} def

% Read kerning information from a .AFM file.

/readkern {	% &lt;afmfile&gt; readkern &lt;pairkerndict&gt;
  /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  % &lt;key&gt; &lt;value&gt; 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 {		% &lt;isoname&gt; &lt;fontname&gt; RE &lt;font&gt;
    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 -&gt;
  /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: &lt;file&gt; lp
%   prints &lt;file&gt; using the current parameter settings.
% Usage: [ &lt;arg1&gt; ... &lt;argn&gt; ] lpcommand
%   interprets args like a command line.

/lp { save   lpdict begin () lp end   restore } def

lpdict begin

/splitfn		% (FontNN.NN) -&gt; &lt;font&gt;
 { 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 -&gt;
 { exch dup cvn lpdict exch known
    { cvn load exec }
    { exch pop (Unknown switch: ) eprint eprint (\n) eprint }
   ifelse
 } def

/more		% argn ... arg1 restofswitch -&gt;
 { 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 -&gt;
 { 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&#039;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		% &lt;[arg1 ... argn]&gt; lpcommand &lt;any_printed&gt;
 {	% 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&lt;header&gt;] [-f&lt;font&gt;] [-F&lt;hfont&gt;]\n)
        (        [-L&lt;lines&gt;] [-p&lt;outfile&gt;] [-T&lt;tabwidth&gt;]\n)
        (        [--add-to-(space|width) &lt;units&gt;] [--columns &lt;n&gt;]\n)
        (        [--detect] [--first-page &lt;page#&gt;] [--last-page &lt;page#&gt;]\n)
        (        [--(heading|footing)-(left|right|center) &lt;string&gt;]\n)
        (        [--kern &lt;afmfile&gt;] [--margin-(top|bottom|left|right) &lt;inches&gt;]\n)
        (        [--no-eject-(file|formfeed)] [--spacing &lt;n&gt;] file1 ... filen\n)
      ] { 2 copy writestring pop } forall dup flushfile closefile
    }
   if
 }
 { pop }
ifelse
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