/usr/share/texmf-texlive/scripts/epspdf/epspdfrc.rb is in texlive-pictures 2009-15.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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COPYRIGHT = '2006, 2008, 2009'
# epspdf conversion utility, configuration module
#####
# Copyright (C) 2006, 2008, 2009 Siep Kroonenberg
# n dot s dot kroonenberg at rug dot nl
#
# This program is free software, licensed under the GNU GPL, >=2.0.
# This software comes with absolutely NO WARRANTY. Use at your own risk!
#####
# Settings are stored in a settings hash, with some methods added
# for less unwieldy notation.
#
# In phase 1, some programs (converters, viewers) are autodetected.
# In phase 2, user preferences are read from the epspdf configuration.
#
# For unix/osx, configuration info is stored in $HOME/.epspdfrc.
# For w32, configuration info is stored in HKCU\software\epspdf.
#
# The UIs for settings are not here; they are:
# 1. the epspdf.rb command-line if epspdf.rb is run as
# a stand-alone program, and
# 2. a configuration screen in epspdftk.rb.
require 'rbconfig'
include Config
# for notational convenience, we keep ARCH separate
ARCH = case CONFIG['arch']
when /win32|mingw/
'w32'
when /darwin/
'osx'
else
'unix'
end
if ARCH == 'w32'
# registry and API calls
require 'dl/win32'
require 'win32/registry'
include Win32 # this lets us abbreviate Win32::Registry to Registry
# lay groundwork for short_name function
ShortPName = Win32API.new(
'kernel32', 'GetShortPathName', ['P','P','N'], 'N' )
# shellopen function
ShellEx = Win32API.new(
'shell32','ShellExecute', ['L','P','P','P','P','L'], 'L' )
#FindEx = Win32API.new(
# 'shell32','FindExecutable', ['P','P','P'], 'L' )
# from winuser.h:
SW_SHOWNORMAL = 1
end
# need short_name function to get around limitations of w2k quoting
def short_name( fn )
#puts "Calculate short name for #{fn}\n"
return fn if ARCH != 'w32'
fn.gsub!( /\//, "\\" )
buffer = ' ' * 260
length = ShortPName.call( fn, buffer, buffer.size )
fn = buffer.slice(0..length-1) if length > 0
fn.gsub!( /\\/, '/' )
return fn
end
def shell_open( fn )
return nil if ARCH != 'w32'
result = ShellEx.call( 0, 0, fn, 0, 0, SW_SHOWNORMAL )
end
def shell_open_with( fn )
return nil if ARCH != 'w32'
result = ShellEx.call( 0, 0, "RUNDLL32.EXE", "shell32.dll,OpenAs_RunDLL #{fn}",
0, SW_SHOWNORMAL )
end
# interpret error value for shell_open
# values <=32 indicate error
# constants defined in winerror.h, shellapi.h
def shell_error_string ( e )
if e > 32
returl nil
else
return case e
when 0: "Out of memory or resources"
#define ERROR_FILE_NOT_FOUND 2L
#define SE_ERR_FNF 2
when 2: "File not found"
#define ERROR_PATH_NOT_FOUND 3L
#define SE_ERR_PNF 3
when 3: "Path not found"
#define SE_ERR_ACCESSDENIED 5
when 5: "Access denied"
#define SE_ERR_OOM 8
when 8: "Not enough memory"
#define ERROR_BAD_FORMAT 11L
when 11: "Invalid exe"
#define SE_ERR_SHARE 26
when 26: "Sharing violation"
#define SE_ERR_ASSOCINCOMPLETE 27
when 27: "Invalid file association"
#define SE_ERR_DDETIMEOUT 28
when 28: "DDE timeout"
#define SE_ERR_DDEFAIL 29
when 29: "DDE fail"
#define SE_ERR_DDEBUSY 30
when 30: "DDE busy"
#define SE_ERR_NOASSOC 31
when 31: "No file association"
#define SE_ERR_DLLNOTFOUND 32
when 32: "DLL not found"
else "Unspecified error"
end # case
end # else
end # def
# system-dependent location of logfile
LOGFILE = case ARCH
when 'w32'
"#{ENV['USERPROFILE']}\\epspdf.log"
else
"#{ENV['HOME']}/epspdf.log"
end
LOGFILE_OLD = LOGFILE + '.old'
# system-dependent locations of saved settings
RC_FILE = "#{ENV['HOME']}/.epspdfrc" # not used under Windows
REG_K = 'epspdf'
REG_KEY = 'SOFTWARE\\epspdf'
# hash of saved settings from rc file or registry
$rc_settings = {}
# test whether a string is a valid program call
# 'which' also works with explicit paths.
# 'which' returns an error for non-executable files.
# Linux/Unix OS X: for testing existence of gs, pdftops and ps/pdf viewers
# Mac OS X: for testing existence of gs and pdftops
# Windows: function not usable and not used
def is_a_program( s )
case ARCH
when 'w32'
nil
else
( system "which #{s} >/dev/null 2>&1" ) ? 1 : nil
end
end # is_a_program
# for Windows, use the registry or the following function instead:
def find_on_path( s )
# for now, Windows-only; parameter s with or without path
if ARCH != 'w32'
return nil
end
ENV['PATH'].gsub( "\\", "/" ).split( /;/ ).each do |d|
d = File.expand_path( d ) # this seems a syntactic operation
s_full = d.sub( /\/$/, '' ) + '/' + s
if test( ?d, d ) and test( ?f, s_full )
return s_full
end
ENV['PATHEXT'].split( /;/ ).each do |e|
# components of PATHEXT should include leading dot
s_full = d.sub( /\/$/, '' ) + '/' + s + e
if test( ?f, s_full )
return s_full
end
end # do |e|
end # do |d|
return nil
end
class Setting
attr_reader :val, :type, :comment
attr_writer :val
def initialize( v, t, c )
@val = v
@type = t
@comment = c
end
end
PDF_TARGETS = [ 'default', 'printer', 'prepress', 'screen', 'ebook' ]
PDF_VERSIONS = [ '1.2', '1.3', '1.4', 'default' ]
$settings = {
# converters
# ghostscript: under windows it must be told about its directories,
# so we don't want users to mess with it.
# If they really want to, they can manually edit PATH and set GS_LIB
'gs_prog' => Setting.new( nil, 'auto', nil ),
#'gs_version' => Setting.new( nil, 'auto', nil ),
'pdftops_prog' => Setting.new( nil, ARCH=='w32' ? 'config' : 'auto', nil ),
# epspdftk: viewers
'pdf_viewers' => Setting.new( nil, ARCH=='unix' ? 'auto' : nil, nil ),
'ps_viewers' => Setting.new( nil, ARCH=='unix' ? 'auto' : nil, nil ),
'pdf_viewer' => Setting.new( nil, ARCH=='unix' ? 'config' : 'auto', nil ),
'ps_viewer' => Setting.new( nil, ARCH=='unix' ? 'config' : 'auto', nil ),
# epspdftk: initial dir
'defaultDir' => Setting.new( nil, 'config', nil ),
# conversion options
'ignore_pdftops' => Setting.new( '0', 'config',
'Ignore pdftops even if available; 1=yes, empty or 0=no(default)' ),
'pdf_target' => Setting.new( 'prepress', 'config',
'Target: screen, ebook, print, prepress (default) or default' ),
'pdf_version' => Setting.new( 'default', 'config',
'Pdf version: e.g 1.4 or 1.2 or default' ),
'pdf_custom' => Setting.new( '', 'config',
'additional options for [e]ps to pdf conversion' ),
'ps_options' => Setting.new( '-level3', 'config',
'options for pdftops; default -level3' ),
'ignore_hires_bb' => Setting.new( '0', 'config',
'Ignore hi-res boundingbox for pdf generation;' +
' 1=yes, empty or 0=no(default)' ),
'bb_spread' => Setting.new( '1', 'config',
'margin to be added to computed lores boundingbox; default 1' )
}
# Using pdftops or a hires boundingbox should be the norm, not the exception.
# We emphasize this by naming the corresponding options ignore_pdftops and
# ignore_hires_bb, and letting them default to false.
def reverse_of( x )
case x
when /t(rue)?|y(es)?|1/i
false
when /f(alse)?|n(o)?|0/i
true
when 1
false
when 0
true
else
true
end
end
class << $settings
# create shortcut methods $settings.x and $settings.x=
# for reading and writing hash elements.
$settings.each_key { |k|
eval "def #{k} ; self[\'#{k}\'].val ; end"
eval "def #{k}=(v) ; self[\'#{k}\'].val=v ; end"
}
# use_pdftops and use_hires_bb are a boolean counterparts and inverses
# of the stored string attributes ignore_pdftops and ignore_hires_bb
def use_hires_bb
reverse_of( self['ignore_hires_bb'].val )
end
def use_pdftops
reverse_of( self['ignore_pdftops'].val )
end
def accept_pdf_viewer( s )
if ARCH == 'unix'
if is_a_program( s )
self.pdf_viewer = s
self.pdf_viewers.unshift( s ) unless self.pdf_viewers.index( s )
return 1
else
return nil
end
else
return nil
end
end # accept_pdf_viewer
def accept_ps_viewer( s )
if ARCH == 'unix'
if is_a_program( s )
self.ps_viewer = s
self.pdf_viewer = s unless \
self.pdf_viewer and not self.pdf_viewer.empty?
self.ps_viewers.unshift( s ) unless self.ps_viewers.index( s )
self.pdf_viewers.push( s ) unless self.pdf_viewers.index( s )
return 1
else
return nil
end
else
return nil
end
end # accept_ps_viewer
# previously-configured settings into hash $rc_settings
# here no validity testing.
# we accept empty settings.
def read_settings
if ARCH == 'w32'
[Registry::HKEY_LOCAL_MACHINE,
Registry::HKEY_CURRENT_USER].each { |hk|
begin # open REG_KEY safely
hk.open( REG_KEY ) do |ep|
ep.each_value do |key, type, val|
$rc_settings[ key ] = val \
if $settings[ key ] and $settings[ key ].type == 'config'
end # do |key, type, val|
end # do |ep|
rescue
end # open REG_KEY safely
} # each |hk|
else
if test( ?s, RC_FILE )
lines = File.read( RC_FILE ).split( /\r\n?|\n/ )
lines.each do |l|
l = l.sub( /#.*$/, '' ) # remove trailing comments
if l =~ /^\s*(\S+)\s*=\s*(\S(.*\S)?)\s*$/
key, val = $1, $2
$rc_settings[ key ] = val \
if $settings[ key ] and $settings[ key ].type == 'config'
elsif l =~ /^\s*(\S+)\s*=\s*$/
key, val = $1, ''
$rc_settings[ key ] = '' \
if $settings[ key ] and $settings[ key ].type == 'config'
end # if l =~
end # do |l|
end # if ?s
end # if ARCH
end # def
def write_settings
if ARCH == 'w32'
begin
Registry::HKEY_CURRENT_USER.create(
'SOFTWARE', desired = Registry::KEY_ALL_ACCESS) do |reg|
reg.create( REG_K, desired = Registry::KEY_ALL_ACCESS ) do |rk|
$settings.each do |k, s|
key = String.new( k )
st = Setting.new( s.val, s.type, s.comment )
# this copying looks kind of silly,
# but prevents a 'modifying frozen object' error.
if st.type == 'config'
vl = st.val ? st.val : ''
rk.write_s( key, vl )
end
end # do each
end # do |rk|
end # do |reg|
rescue => er # no real error handling for now
puts $!
puts er.backtrace.join( $/ )
puts 'Settings will be lost at next run'
end
else
File.open( RC_FILE, 'w' ) do |f|
f.write( "# This file will be overwritten by epspdf[tk][.rb]" \
+ $/ )
$settings.each do |key, st|
if st.type == 'config'
f.write( $/ )
f.write( '# ' + st.comment + $/ ) if st.comment
# STDERR.puts "write setting for " + key
# STDERR.flush
f.write( key + " = " + ( st.val ? st.val : '' ) + $/ )
end
end # do |key, st|
end # do |f|
end # if
end # def
def get_settings
# phase 1: autodetect
# w32: gs_prog, pdf_viewer, ps_viewer
# gs: search path; search registry settings (user and system);
# search tex installation. The first one wins.
# viewers: check file type registry entry for valid open commands
# unix: gs_prog, pdftops_prog, pdf_viewers, ps_viewers
# osx: gs_prog, pdftops_prog
# viewers: use Preview; don't check anything
# unix/osx are done together, except that for osx
# the viewers code is skipped.
# Windows: test for TeX, because it may come with a hidden
# ghostscript. TeX may also come with pdftops.exe, but pdftops
# would then be on the searchpath and not require special treatment.
texbindir = ( ARCH == 'w32' ) ? find_on_path( 'tex' ) : nil
texbindir = short_name( File.dirname( texbindir ) ) if texbindir
case ARCH
when 'w32'
# ghostscript:
# 1. check searchpath
# 2. check registry for latest valid version of Ghostscript
# 3. check tex installation
# TeX Live- and MikTeX versions need environment variables
# no need to remember: it will be the last thing we try
# searchpath
self.gs_prog = find_on_path( 'gswin32c' )
if not self.gs_prog
try_gs_version = 0
try_gs_prog = nil
this_gs_prog = nil
# tentative values; HKLM and HKCU may provide different values
[Registry::HKEY_LOCAL_MACHINE,
Registry::HKEY_CURRENT_USER].each { |hk|
puts hk.to_s if $DEBUG
hk.open('SOFTWARE') { |sof|
puts sof.to_s if $DEBUG
sof.each_key { |key, wtime|
puts key.to_s if $DEBUG
if key =~ /ghostscript/i
gh = hk.open('SOFTWARE\\' + key)
gh.each_key { |this_gs_version, wtime|
if this_gs_version =~ /^\d+\.\d+/ # version number
if this_gs_version.to_f > try_gs_version.to_f
this_gs = hk.open('SOFTWARE\\' + key +
'\\' + this_gs_version)
this_gs_prog = this_gs['GS_DLL'].sub(
/([\\\/])([^\\\/]+)$/, '\1gswin32c.exe')
if test(?e,this_gs_prog)
try_gs_version = this_gs_version
try_gs_prog = this_gs_prog
end # if ?e (exist)
end # this_gs_version.to_f > try_gs_version.to_f
end # if this_gs_version =~ /^\d+\.\d+$/
} # gh.each_key
end # if key =~ /ghostscript/i
} # sof.each_key
} # hk.open |sof|
} # [HKCU, HKLM].each
self.gs_prog = this_gs_prog if this_gs_prog
end # if not self.gs_prog
if texbindir and ! self.gs_prog
# TeX Live >= 2008:
# hidden gs in texbindir/../../tlpkg/tlgs
texroot = File.dirname( File.dirname( File.expand_path( texbindir )))
gsroot = texroot + '/tlpkg/tlgs'
this_gs_prog = gsroot + '/bin/gswin32c.exe'
if test( ?f, this_gs_prog )
self.gs_prog = this_gs_prog
ENV['GS_LIB'] = "#{gsroot}/lib;#{gsroot}/fonts;#{gsroot}/Resource"
else # test for MikTeX hidden ghostscript
# http://blog.miktex.org/post/2005/04/
# Starting-mgsexe-at-the-DOS-Prompt.aspx
# That's because mgs.exe doesn't use the original registry keys
# and environment variables. For example, mgs.exe queries
# MIKTEX_GS_LIB instead of GS_LIB. You can start mgs.exe
# at the DOS-prompt if you set MIKTEX_GS_LIB as follows:
# MIKTEX_GS_LIB=C:\texmf\ghostscript\base;C:\texmf\fonts
this_gs_prog = texbindir + '/mgs.exe'
if test( ?f, this_gs_prog ) and
test( ?d, "#{texroot}/ghostscript/base" )
self.gs_prog = this_gs_prog
ENV['MIKTEX_GS_LIB'] =
"#{texroot}/ghostscript/base;#{texroot}/fonts"
end # ?f, this_gs_prog
end # try MikTeX hidden Ghostscript
end # texbindir and ! self.gs_prog
fail( "No ghostscript" ) unless self.gs_prog
self.gs_prog = short_name( self.gs_prog )
# pdftops: just check the searchpath
self.pdftops_prog = find_on_path( 'pdftops' )
when /unix|osx/
# gs
self.gs_prog = is_a_program( 'gs' ) ? 'gs' : nil
# pdftops
self.pdftops_prog = is_a_program( 'pdftops' ) ? 'pdftops' : nil
# viewers
if ARCH == 'unix'
vw = %w{ evince gpdf xpdf acroread epdfview gv gsview okular }
vw.delete_if { |x| not is_a_program( x ) }
vw = nil if vw.empty?
self.pdf_viewers = vw
self.pdf_viewer = vw ? vw[0] : nil
if vw
vw2 = vw.dup # copy the elements rather than the array ref
[ 'gpdf', 'xpdf', 'acroread', 'epdfview' ].each { |pg|
vw2.delete( pg ) if vw2.index( pg )
}
vw2 = nil if vw2.empty?
self.ps_viewers = vw2
self.ps_viewer = vw2 ? vw2[ 0 ] : nil
end # if vw
end # if unix
end # case ARCH
# built-in defaults already set during initialization of $settings
# phase 2: pre-existing configuration
# w32: pdftops_prog
# unix (not osx): pdf_viewers
read_settings
case ARCH
when 'w32'
self.pdftops_prog = $rc_settings[ 'pdftops_prog' ] if
$rc_settings[ 'pdftops_prog' ] and
! $rc_settings[ 'pdftops_prog' ].empty? and
test( ?f, $rc_settings[ 'pdftops_prog' ] )
when 'unix'
if v = $rc_settings[ 'pdf_viewer' ] and is_a_program( v )
self.pdf_viewer = v
self.pdf_viewers.unshift( v ) unless self.pdf_viewers.index( v )
end # if
if v = $rc_settings[ 'ps_viewer' ] and is_a_program( v )
self.ps_viewer = v
self.ps_viewers.unshift( v ) unless self.ps_viewers.index( v )
end # if
if self.ps_viewers and not self.pdf_viewers
self.pdf_viewers = self.ps_viewers.dup
self.pdf_viewer = self.ps_viewer
end # if
end # case ARCH
if ( $rc_settings[ 'defaultDir' ] and
( not $rc_settings[ 'defaultDir' ].strip.empty? ) and
test( ?d, $rc_settings[ 'defaultDir' ] ) )
self.defaultDir = File.expand_path( $rc_settings[ 'defaultDir' ] )
else
self.defaultDir = Dir.getwd
end
#print "defaultDir set to #{self.defaultDir} by epspdfrc.getsettings"
# no validity checks for pdf- and ps output options.
# reminder: self.s shortcut for self['s'].val
[ 'pdf_target', 'pdf_version', 'pdf_custom', 'ps_options' ].each { |p|
self[ p ].val = $rc_settings[ p ] if $rc_settings[ p ]
}
if $rc_settings.has_key?( 'ignore_pdftops' )
self.ignore_pdftops = case $rc_settings[ 'ignore_pdftops' ]
when /1|yes|true|y|t/i
'1'
when /0|no|false|n|f/i
'0'
end
else
self.ignore_pdftops = '0'
end
if $rc_settings.has_key?( 'ignore_hires_bb' )
self.ignore_hires_bb = case $rc_settings[ 'ignore_hires_bb' ]
when /1|yes|true|y|t/i
'1'
when /0|no|false|n|f/i
'0'
end
else
self.ignore_hires_bb = '0'
end
# bb_spread has an effect only if ignore_hires_bb
self.bb_spread = $rc_settings[ 'bb_spread' ] if
$rc_settings.has_key?( 'bb_spread' ) and
$rc_settings[ 'bb_spread' ] =~ /^[+-]?[\d]+$/
end # get_settings
end # class << $settings
$settings.get_settings
|