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- % Copyright (C) 1991 Aladdin Enterprises. All rights reserved.
- % Distributed by Free Software Foundation, Inc.
- %
- % This file is part of Ghostscript.
- %
- % Ghostscript is distributed in the hope that it will be useful, but
- % WITHOUT ANY WARRANTY. No author or distributor accepts responsibility
- % to anyone for the consequences of using it or for whether it serves any
- % particular purpose or works at all, unless he says so in writing. Refer
- % to the Ghostscript General Public License for full details.
- %
- % Everyone is granted permission to copy, modify and redistribute
- % Ghostscript, but only under the conditions described in the Ghostscript
- % General Public License. A copy of this license is supposed to have been
- % given to you along with Ghostscript so you can know your rights and
- % responsibilities. It should be in a file named COPYING. Among other
- % things, the copyright notice and this notice must be preserved on all
- % copies.
-
- % 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.
- % Currently it neither truncates nor wraps over-length lines.
- % It only works with fixed-pitch fonts.
- % Flags implemented: -12BclrR -b -f -F -L -p
- % Flags added:
- % -T<n> for defining the tab width
- % -P<n> for setting the first page to print
- % -Q<n> for setting the last page to print
-
- /lpdict 80 dict def
- lpdict begin
-
- % Define the initial values of the printing parameters.
-
- /BodyFont null def % use default
- /defaultBodyFont
- { /Courier findfont Landscape { 7 } { 10 } ifelse scalefont } def
- /Columns 1 def
- /Headers true def
- /HeadingLeft () def
- /HeadingCenter () def
- /HeadingRight null def % use page #
- /HeadingFont null def % use default
- /defaultHeadingFont
- { /Courier-Bold findfont 10 scalefont } def
- /MaxLines 9999 def % max lines per page
- /Landscape false def
- /OutFile null def % null = write directly to device
- /PageFirst 1 def
- /PageLast 99999 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.
-
- /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 { n -1 roll dup wosp } repeat
- OutFile (\n) writestring
- n t
- }
- ifelse
- { pop load exec }
- { { pop } repeat }
- ifelse
- } def
-
- /lpmoveto
- { /moveto 2 true lpexec
- } def
- /lpshow
- { dup length 0 ne { /show 1 false lpexec } { pop } ifelse
- } def
- /lpsetmyfont
- { dup load setfont
- OutFile null ne { cvx /setfont 1 false lpexec } { pop } ifelse
- } def
-
- % Define some utility procedures.
-
- /beginpage
- { /lindex 0 def
- /skipping pindex PageFirst ge pindex PageLast le and not def
- /save 0 true lpexec /pagesave exch def
- skipping { nulldevice /OutFile null def } if
- Headers
- { /HFont lpsetmyfont
- HeadingLeft 0 topskip showline2
- HeadingCenter dup stringwidth pop 2 div topskip showline2
- HeadingRight null eq
- { (page ) pindex 4 string cvs concatstrings }
- { HeadingRight }
- ifelse
- dup stringwidth pop pwidth 0.95 mul exch sub
- topskip showline2
- }
- if
- /BFont lpsetmyfont
- } def
-
- /endpage
- { lindex 0 ne { /showpage 0 false lpexec } if
- pagesave /restore 0 true lpexec
- /pindex pindex 1 add def
- } def
-
- /fontheight % font -> height
- { dup /FontBBox get
- dup 3 get exch 1 get sub
- exch /FontMatrix get
- 0 get mul 1.2 mul
- } def
-
- /wosp
- { OutFile ( ) writestring OutFile exch write==only
- } def
-
- /outfont % name font ->
- { OutFile null ne
- { exch wosp
- dup /FontName get wosp OutFile ( findfont) writestring
- /FontMatrix get 0 get 1000 mul round cvi wosp
- OutFile ( scalefont def\n) writestring
- }
- { pop pop
- }
- ifelse
- } def
-
- % showline doesn't do line wrapping yet....
- /showline % line -> leftover_line (handles \f)
- { (\f) search
- { { dup length 0 eq { pop exit } if showline1 } loop
- endpage beginpage
- pop
- }
- if
- showline1
- } def
-
- /showline1 % line -> leftover_line (handles page break)
- { lindex llength eq { endpage beginpage } if
- lindex colines idiv cowidth mul % x
- lindex colines mod fheight mul neg % y
- showline2
- /lindex lindex 1 add def
- ()
- } def
-
- /showline2 % string x y -> (handles tabs)
- { lpmoveto
- { dup length 0 eq { pop exit } if
- (\t) search
- { dup length 0 ne { lpshow } { pop } ifelse pop
- currentpoint exch tabwx div
- 0.05 add ceiling tabwx mul exch lpmoveto
- }
- { lpshow exit }
- ifelse
- } loop
- } def
-
- % The main printing procedure
-
- /lp
- { /lpfile exch def
- /save 0 true lpexec
-
- % Initialize the device and fonts.
- /BFont
- BodyFont null eq { defaultBodyFont } { BodyFont } ifelse def
- /BFont BFont outfont
- /HFont
- HeadingFont null eq { defaultHeadingFont } { HeadingFont } ifelse def
- /HFont HFont outfont
-
- % Get the layout parameters.
- clippath
- Landscape { -90 /rotate 1 true lpexec } if
- BFont setfont ( ) stringwidth pop /cwx exch def
- cwx Tab mul /tabwx exch def
- BFont fontheight /fheight exch def
- Headers { HFont fontheight fheight add } { 0 } ifelse
- /topskip exch def
- pathbbox
- 2 index sub /plength exch def
- 2 index sub dup /pwidth exch def
- Columns div /cowidth exch def
- exch cowidth 0.025 mul add
- exch plength 0.98 mul add topskip sub
- /translate 2 true lpexec
- plength 0.9 mul topskip sub fheight div cvi MaxLines min
- dup /colines exch def
- Columns mul /llength exch def
- OutFile null ne { nulldevice } if
-
- % Print layout
- (Page height = ) print llength =only
- (.\n) print flush
-
- % Disable stack recording so we can use stopped with readline.
- $error /recordstacks false put
-
- % Initialize for the first page.
- /lbuf 1000 string def
- /pindex 1 def
- beginpage
-
- % Iterate through the file.
- ()
- { dup length /pos exch def
- lbuf exch 0 exch putinterval
- { lpfile lbuf pos lbuf length pos sub getinterval readline } stopped
- { exch pop true } if
- exch length pos add lbuf exch 0 exch getinterval exch
- { showline }
- { dup length 0 ne { showline } if exit }
- ifelse
- } loop
- pop
-
- % Wrap up.
- endpage
- /restore 0 true lpexec
-
- } 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 % (FontNNN) -> <font>
- { dup /arg exch def length
- { dup 0 le { exit } if
- dup 1 sub arg exch get dup 48 ge exch 59 le and not { exit } if
- 1 sub
- } loop
- arg exch 0 exch getinterval dup cvn findfont
- exch arg exch anchorsearch pop pop cvr scalefont
- } def
-
- % Parse the command line switches.
-
- /doswitch % (-*) argstring ->
- { exch dup cvn lpdict exch known
- { cvn load exec }
- { exch pop (Unknown switch: ) print print (\n) print flush }
- ifelse
- } def
-
- /more % string ->
- { dup length 0 ne
- { (- ) dup 1 3 index 0 get put
- exch dup length 1 sub 1 exch getinterval
- doswitch
- }
- { pop
- }
- ifelse
- } def
-
- (-1)cvn { /Columns 1 def more } def
- (-2)cvn { /Columns 2 def more } def
- /-b { /HeadingLeft exch def /HeadingCenter () def /HeadingRight null def
- /Headers true def
- /break true def
- } def
- /-B { /Headers false def more } def
- /-c { /Truncate true def more } def
- /-f { splitfn /BodyFont exch def } def
- /-F { splitfn /HeadingFont exch def } def
- /-l { 66 -L -B } def
- /-L { cvi /MaxLines exch def } def
- /-p { (w) file /OutFile exch def Outfile (%!\n) writestring } def
- /-P { cvi /PageFirst exch def } def
- /-Q { cvi /PageLast exch def } def
- /-r { /Landscape true def more } def
- /-R { /Landscape false def more } def
- /-T { cvi /Tab exch def } def
-
- end
-
- /lpcommand
- { lpdict begin
- /break false def
- { 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
- }
- { break not { dup /HeadingLeft exch def } if
- (r) file lp
- }
- ifelse
- } forall
- OutFile null ne { OutFile closefile /OutFile null def } if
- end
- } def
-
- [ shellarguments
- { ] dup length 0 ne
- { lpcommand
- }
- { (Usage: gslp [-12BclrR] [-b<header] [-f<font>] [-F<hfont>]\n) print
- ( [-L<lines>] [-p<outfile>] [-P<startpage#>] [-Q<stoppage#>]\n) print
- ( [-T<tabwidth>] file1 ... filen\n) print flush
- }
- ifelse
- }
- { pop }
- ifelse
-