[193] | 1 | #! /usr/bin/env python |
---|
| 2 | # -*- coding: ISO-8859-15 -*- |
---|
[191] | 3 | # |
---|
| 4 | # pkpgcounter : a generic Page Description Language parser |
---|
| 5 | # |
---|
[211] | 6 | # (c) 2003, 2004, 2005 Jerome Alet <alet@librelogiciel.com> |
---|
[191] | 7 | # This program is free software; you can redistribute it and/or modify |
---|
| 8 | # it under the terms of the GNU General Public License as published by |
---|
| 9 | # the Free Software Foundation; either version 2 of the License, or |
---|
| 10 | # (at your option) any later version. |
---|
| 11 | # |
---|
| 12 | # This program is distributed in the hope that it will be useful, |
---|
| 13 | # but WITHOUT ANY WARRANTY; without even the implied warranty of |
---|
| 14 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
---|
| 15 | # GNU General Public License for more details. |
---|
| 16 | # |
---|
| 17 | # You should have received a copy of the GNU General Public License |
---|
| 18 | # along with this program; if not, write to the Free Software |
---|
[211] | 19 | # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. |
---|
[191] | 20 | # |
---|
| 21 | # $Id$ |
---|
| 22 | # |
---|
[193] | 23 | |
---|
| 24 | import sys |
---|
| 25 | import popen2 |
---|
| 26 | |
---|
[200] | 27 | from pdlanalyzer import pdlparser |
---|
[193] | 28 | |
---|
[220] | 29 | class Parser(pdlparser.PDLParser) : |
---|
[193] | 30 | """A parser for PostScript documents.""" |
---|
[220] | 31 | def isValid(self) : |
---|
| 32 | """Returns 1 if data is PostScript, else 0.""" |
---|
| 33 | if self.firstblock.startswith("%!") or \ |
---|
| 34 | self.firstblock.startswith("\004%!") or \ |
---|
| 35 | self.firstblock.startswith("\033%-12345X%!PS") or \ |
---|
| 36 | ((self.firstblock[:128].find("\033%-12345X") != -1) and \ |
---|
| 37 | ((self.firstblock.find("LANGUAGE=POSTSCRIPT") != -1) or \ |
---|
| 38 | (self.firstblock.find("LANGUAGE = POSTSCRIPT") != -1) or \ |
---|
| 39 | (self.firstblock.find("LANGUAGE = Postscript") != -1))) or \ |
---|
| 40 | (self.firstblock.find("%!PS-Adobe") != -1) : |
---|
| 41 | if self.debug : |
---|
| 42 | sys.stderr.write("DEBUG: Input file is in the PostScript format.\n") |
---|
| 43 | return 1 |
---|
| 44 | else : |
---|
| 45 | return 0 |
---|
| 46 | |
---|
[193] | 47 | def throughGhostScript(self) : |
---|
| 48 | """Get the count through GhostScript, useful for non-DSC compliant PS files.""" |
---|
| 49 | if self.debug : |
---|
| 50 | sys.stderr.write("Internal parser sucks, using GhostScript instead...\n") |
---|
| 51 | self.infile.seek(0) |
---|
| 52 | command = 'gs -sDEVICE=bbox -dNOPAUSE -dBATCH -dQUIET - 2>&1 | grep -c "%%HiResBoundingBox:" 2>/dev/null' |
---|
| 53 | child = popen2.Popen4(command) |
---|
| 54 | try : |
---|
| 55 | data = self.infile.read(MEGABYTE) |
---|
| 56 | while data : |
---|
| 57 | child.tochild.write(data) |
---|
| 58 | data = self.infile.read(MEGABYTE) |
---|
| 59 | child.tochild.flush() |
---|
| 60 | child.tochild.close() |
---|
| 61 | except (IOError, OSError), msg : |
---|
[200] | 62 | raise pdlparser.PDLParserError, "Problem during analysis of Binary PostScript document : %s" % msg |
---|
[193] | 63 | |
---|
| 64 | pagecount = 0 |
---|
| 65 | try : |
---|
| 66 | pagecount = int(child.fromchild.readline().strip()) |
---|
| 67 | except (IOError, OSError, AttributeError, ValueError), msg : |
---|
[200] | 68 | raise pdlparser.PDLParserError, "Problem during analysis of Binary PostScript document : %s" % msg |
---|
[193] | 69 | child.fromchild.close() |
---|
| 70 | |
---|
| 71 | try : |
---|
| 72 | child.wait() |
---|
| 73 | except OSError, msg : |
---|
[200] | 74 | raise pdlparser.PDLParserError, "Problem during analysis of Binary PostScript document : %s" % msg |
---|
[193] | 75 | return pagecount * self.copies |
---|
| 76 | |
---|
| 77 | def natively(self) : |
---|
| 78 | """Count pages in a DSC compliant PostScript document.""" |
---|
| 79 | self.infile.seek(0) |
---|
| 80 | pagecount = 0 |
---|
| 81 | for line in self.infile.xreadlines() : |
---|
[208] | 82 | if line.startswith(r"%%Page: ") : |
---|
[193] | 83 | pagecount += 1 |
---|
[208] | 84 | elif line.startswith(r"%%Requirements: numcopies(") : |
---|
[193] | 85 | try : |
---|
| 86 | number = int(line.strip().split('(')[1].split(')')[0]) |
---|
| 87 | except : |
---|
| 88 | pass |
---|
| 89 | else : |
---|
| 90 | if number > self.copies : |
---|
| 91 | self.copies = number |
---|
[208] | 92 | elif line.startswith(r"%%BeginNonPPDFeature: NumCopies ") : |
---|
[193] | 93 | # handle # of copies set by some Windows printer driver |
---|
| 94 | try : |
---|
| 95 | number = int(line.strip().split()[2]) |
---|
| 96 | except : |
---|
| 97 | pass |
---|
| 98 | else : |
---|
| 99 | if number > self.copies : |
---|
| 100 | self.copies = number |
---|
| 101 | elif line.startswith("1 dict dup /NumCopies ") : |
---|
| 102 | # handle # of copies set by mozilla/kprinter |
---|
| 103 | try : |
---|
| 104 | number = int(line.strip().split()[4]) |
---|
| 105 | except : |
---|
| 106 | pass |
---|
| 107 | else : |
---|
| 108 | if number > self.copies : |
---|
| 109 | self.copies = number |
---|
| 110 | return pagecount * self.copies |
---|
| 111 | |
---|
| 112 | def getJobSize(self) : |
---|
| 113 | """Count pages in PostScript document.""" |
---|
[202] | 114 | self.copies = 1 |
---|
[193] | 115 | return self.natively() or self.throughGhostScript() |
---|
| 116 | |
---|
| 117 | def test() : |
---|
| 118 | """Test function.""" |
---|
[196] | 119 | if (len(sys.argv) < 2) or ((not sys.stdin.isatty()) and ("-" not in sys.argv[1:])) : |
---|
| 120 | sys.argv.append("-") |
---|
| 121 | totalsize = 0 |
---|
| 122 | for arg in sys.argv[1:] : |
---|
| 123 | if arg == "-" : |
---|
| 124 | infile = sys.stdin |
---|
| 125 | mustclose = 0 |
---|
| 126 | else : |
---|
| 127 | infile = open(arg, "rb") |
---|
| 128 | mustclose = 1 |
---|
| 129 | try : |
---|
[220] | 130 | parser = Parser(infile, debug=1) |
---|
[196] | 131 | totalsize += parser.getJobSize() |
---|
[200] | 132 | except pdlparser.PDLParserError, msg : |
---|
[196] | 133 | sys.stderr.write("ERROR: %s\n" % msg) |
---|
| 134 | sys.stderr.flush() |
---|
| 135 | if mustclose : |
---|
| 136 | infile.close() |
---|
| 137 | print "%s" % totalsize |
---|
[193] | 138 | |
---|
| 139 | if __name__ == "__main__" : |
---|
| 140 | test() |
---|