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- % Copyright (C) 1991, 1993 Aladdin Enterprises. All rights reserved.
- %
- % 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.
- % It only works with fixed-pitch fonts.
- % Standard flags implemented:
- % -12BclqRr -b -f -F -L -p
- % Sun flags implemented:
- % -T<n> set tab width
- % Flags ignored:
- % -GghKkmow -# -C -d -J -n -P -S -s -t -v
- % Flags added:
- % --detect
- % treats the file as PostScript if it starts with %!
- % --(heading|footing)-(left|center|right) <string>
- % sets the heading/footing fields; use -B first to clear
- % --first-page <n>
- % sets the first page to print
- % --last-page <n>
- % sets the last page to print
- % --spacing <n>
- % for 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
-
- % 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
- /DetectFileType false 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 findfont 10 scalefont } def
- /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.
-
- /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.
-
- /banner % ypos left center right
- { /HFont lpsetmyfont
- 3 -1 roll bannerstring pop 0 4 index pwidth showline2 pop
- exch bannerstring pwidth exch sub 2 div 3 index pwidth showline2 pop
- bannerstring 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
- /save 0 true lpexec /pagesave exch def
- skipping { nulldevice /OutFile null def } if
- Headers
- { lheight hdescent add
- HeadingLeft HeadingCenter HeadingRight banner
- } if
- /BFont lpsetmyfont
- } def
-
- /endpage
- { lindex 0 ne
- { Footers
- { topskip plength sub hdescent add
- FootingLeft FootingCenter FootingRight banner
- } if
- /showpage 0 false lpexec
- } if
- pagesave /restore 0 true lpexec
- /pindex pindex 1 add def
- } 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
-
- /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
-
- /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
- endpage beginpage
- 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
-
- /showline2 % string x y xlimit -> leftover_string (handles tabs)
- { 2 index exch 5 2 roll lpmoveto % xinit xlimit string
- { showline3 dup length 0 eq { exit } if
- dup 0 get CharTAB ne { exit } if
- currentpoint exch 4 index sub tabwx div
- 0.05 add ceiling tabwx mul 4 index add exch lpmoveto
- skip1
- currentpoint pop 2 index ge { exit } if
- }
- loop exch pop exch pop
- } def
-
- /showline3 % xlimit string -> xlimit leftover_string
- % (finds line break / tab / formfeed)
- { currentpoint pop 2 index exch 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 lpshow
- length dup 2 index length exch sub getinterval
- } def
-
- /skip1
- { dup length 1 sub 1 exch getinterval
- } def
-
- % The main printing procedure
-
- /lp % file initial_chars ->
- { /lpline exch def
- /lpfile exch def
- /save 0 true lpexec
-
- % Initialize the device and fonts.
- /BFont
- BodyFont null eq { defaultBodyFont } { BodyFont } ifelse def
- /BFont BFont outfont
- Headers Footers or
- { /HFont
- HeadingFont null eq { defaultHeadingFont } { HeadingFont } ifelse def
- /HFont HFont outfont
- }
- if
-
- % 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 /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
- /translate 2 true lpexec
- plength pskip sub lheight div cvi MaxLines min
- dup /colines exch def
- Columns mul /llength exch def
- OutFile null ne { nulldevice } if
-
- % Print layout
- Noisy
- { (Page height = ) print llength =only
- (.\n) print flush
- } if
-
- % 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.
- 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
- } 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 % argn ... arg1 (-?) restofswitch ->
- { exch dup cvn lpdict exch known
- { cvn load exec }
- { exch pop (Unknown switch: ) print print (\n) print flush }
- 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: ) print print (\n) print flush }
- ifelse
- } def
- /--columns { cvi 1 max /Columns exch def } def
- /--detect { /DetectFileType 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
- /--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
- /--last-page { cvi /PageLast exch 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 ) print dup print (\n) print flush
- } 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 100 string def
-
- end
-
- /lpcommand % [arg1 ... argn] -> -
- { % 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
- /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 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
- end
- } def
-
- [ shellarguments
- { ] dup length 0 ne
- { lpcommand
- }
- { (Usage: gslp [-12BclqRr] [-b<header] [-f<font>] [-F<hfont>]\n) print
- ( [-L<lines>] [-p<outfile>] [-T<tabwidth>] [--columns <n>]\n) print
- ( [--detect] [--first-page <page#>] [--last-page <page#>]\n) print
- ( [--(heading|footing)-(left|right|center) <string>]\n) print
- ( [--margin-(top|bottom|left|right) <inches>]\n) print
- ( [--spacing <n>] file1 ... filen\n) print flush
- }
- ifelse
- }
- { pop }
- ifelse
-