[193] | 1 | #! /usr/bin/env python |
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| 2 | # -*- coding: ISO-8859-15 -*- |
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[191] | 3 | # |
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| 4 | # pkpgcounter : a generic Page Description Language parser |
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| 5 | # |
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| 6 | # (c) 2003,2004,2005 Jerome Alet <alet@librelogiciel.com> |
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| 7 | # This program is free software; you can redistribute it and/or modify |
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| 8 | # it under the terms of the GNU General Public License as published by |
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| 9 | # the Free Software Foundation; either version 2 of the License, or |
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| 10 | # (at your option) any later version. |
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| 11 | # |
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| 12 | # This program is distributed in the hope that it will be useful, |
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| 13 | # but WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 14 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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| 15 | # GNU General Public License for more details. |
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| 16 | # |
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| 17 | # You should have received a copy of the GNU General Public License |
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| 18 | # along with this program; if not, write to the Free Software |
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| 19 | # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA. |
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| 20 | # |
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| 21 | # $Id$ |
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| 22 | # |
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[193] | 23 | |
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| 24 | import sys |
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| 25 | import popen2 |
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| 26 | |
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[200] | 27 | from pdlanalyzer import pdlparser |
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[193] | 28 | |
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[200] | 29 | class PostScriptParser(pdlparser.PDLParser) : |
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[193] | 30 | """A parser for PostScript documents.""" |
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| 31 | def throughGhostScript(self) : |
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| 32 | """Get the count through GhostScript, useful for non-DSC compliant PS files.""" |
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| 33 | if self.debug : |
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| 34 | sys.stderr.write("Internal parser sucks, using GhostScript instead...\n") |
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| 35 | self.infile.seek(0) |
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| 36 | command = 'gs -sDEVICE=bbox -dNOPAUSE -dBATCH -dQUIET - 2>&1 | grep -c "%%HiResBoundingBox:" 2>/dev/null' |
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| 37 | child = popen2.Popen4(command) |
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| 38 | try : |
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| 39 | data = self.infile.read(MEGABYTE) |
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| 40 | while data : |
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| 41 | child.tochild.write(data) |
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| 42 | data = self.infile.read(MEGABYTE) |
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| 43 | child.tochild.flush() |
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| 44 | child.tochild.close() |
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| 45 | except (IOError, OSError), msg : |
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[200] | 46 | raise pdlparser.PDLParserError, "Problem during analysis of Binary PostScript document : %s" % msg |
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[193] | 47 | |
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| 48 | pagecount = 0 |
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| 49 | try : |
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| 50 | pagecount = int(child.fromchild.readline().strip()) |
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| 51 | except (IOError, OSError, AttributeError, ValueError), msg : |
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[200] | 52 | raise pdlparser.PDLParserError, "Problem during analysis of Binary PostScript document : %s" % msg |
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[193] | 53 | child.fromchild.close() |
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| 54 | |
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| 55 | try : |
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| 56 | child.wait() |
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| 57 | except OSError, msg : |
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[200] | 58 | raise pdlparser.PDLParserError, "Problem during analysis of Binary PostScript document : %s" % msg |
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[193] | 59 | return pagecount * self.copies |
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| 60 | |
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| 61 | def natively(self) : |
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| 62 | """Count pages in a DSC compliant PostScript document.""" |
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| 63 | self.infile.seek(0) |
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| 64 | pagecount = 0 |
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| 65 | for line in self.infile.xreadlines() : |
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| 66 | if line.startswith("%%Page: ") : |
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| 67 | pagecount += 1 |
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| 68 | elif line.startswith("%%Requirements: numcopies(") : |
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| 69 | try : |
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| 70 | number = int(line.strip().split('(')[1].split(')')[0]) |
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| 71 | except : |
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| 72 | pass |
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| 73 | else : |
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| 74 | if number > self.copies : |
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| 75 | self.copies = number |
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| 76 | elif line.startswith("%%BeginNonPPDFeature: NumCopies ") : |
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| 77 | # handle # of copies set by some Windows printer driver |
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| 78 | try : |
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| 79 | number = int(line.strip().split()[2]) |
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| 80 | except : |
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| 81 | pass |
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| 82 | else : |
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| 83 | if number > self.copies : |
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| 84 | self.copies = number |
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| 85 | elif line.startswith("1 dict dup /NumCopies ") : |
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| 86 | # handle # of copies set by mozilla/kprinter |
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| 87 | try : |
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| 88 | number = int(line.strip().split()[4]) |
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| 89 | except : |
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| 90 | pass |
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| 91 | else : |
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| 92 | if number > self.copies : |
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| 93 | self.copies = number |
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| 94 | return pagecount * self.copies |
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| 95 | |
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| 96 | def getJobSize(self) : |
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| 97 | """Count pages in PostScript document.""" |
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[202] | 98 | self.copies = 1 |
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[193] | 99 | return self.natively() or self.throughGhostScript() |
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| 100 | |
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| 101 | def test() : |
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| 102 | """Test function.""" |
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[196] | 103 | if (len(sys.argv) < 2) or ((not sys.stdin.isatty()) and ("-" not in sys.argv[1:])) : |
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| 104 | sys.argv.append("-") |
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| 105 | totalsize = 0 |
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| 106 | for arg in sys.argv[1:] : |
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| 107 | if arg == "-" : |
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| 108 | infile = sys.stdin |
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| 109 | mustclose = 0 |
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| 110 | else : |
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| 111 | infile = open(arg, "rb") |
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| 112 | mustclose = 1 |
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| 113 | try : |
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| 114 | parser = PostScriptParser(infile, debug=1) |
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| 115 | totalsize += parser.getJobSize() |
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[200] | 116 | except pdlparser.PDLParserError, msg : |
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[196] | 117 | sys.stderr.write("ERROR: %s\n" % msg) |
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| 118 | sys.stderr.flush() |
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| 119 | if mustclose : |
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| 120 | infile.close() |
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| 121 | print "%s" % totalsize |
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[193] | 122 | |
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| 123 | if __name__ == "__main__" : |
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| 124 | test() |
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