1 | #! /usr/bin/env python |
---|
2 | # -*- coding: ISO-8859-15 -*- |
---|
3 | # |
---|
4 | # pkpgcounter : a generic Page Description Language parser |
---|
5 | # |
---|
6 | # (c) 2003, 2004, 2005, 2006 Jerome Alet <alet@librelogiciel.com> |
---|
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 |
---|
19 | # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. |
---|
20 | # |
---|
21 | # $Id$ |
---|
22 | # |
---|
23 | |
---|
24 | import sys |
---|
25 | |
---|
26 | import pdlparser |
---|
27 | |
---|
28 | class Parser(pdlparser.PDLParser) : |
---|
29 | """A parser for ESC/P2 documents.""" |
---|
30 | def isValid(self) : |
---|
31 | """Returns 1 if data is ESC/P2, else 0.""" |
---|
32 | if self.firstblock.startswith("\033@") or \ |
---|
33 | self.firstblock.startswith("\033*") or \ |
---|
34 | self.firstblock.startswith("\n\033@") or \ |
---|
35 | self.firstblock.startswith("\0\0\0\033\1@EJL") : # ESC/P Raster ??? Seen on Stylus Photo 1284 |
---|
36 | self.logdebug("DEBUG: Input file is in the ESC/P2 format.") |
---|
37 | return 1 |
---|
38 | else : |
---|
39 | return 0 |
---|
40 | |
---|
41 | def getJobSize(self) : |
---|
42 | """Counts pages in an ESC/P2 document.""" |
---|
43 | # with Gimpprint, at least, for each page there |
---|
44 | # are two Reset Printer sequences (ESC + @) |
---|
45 | marker1 = "\033@" |
---|
46 | |
---|
47 | # with other software or printer driver, we |
---|
48 | # may prefer to search for "\r\n\fESCAPE" |
---|
49 | # or "\r\fESCAPE" |
---|
50 | marker2r = "\r\f\033" |
---|
51 | marker2rn = "\r\n\f\033" |
---|
52 | |
---|
53 | # and ghostscript's stcolor for example seems to |
---|
54 | # output ESC + @ + \f for each page plus one |
---|
55 | marker3 = "\033@\f" |
---|
56 | |
---|
57 | # while ghostscript's escp driver outputs instead |
---|
58 | # \f + ESC + @ |
---|
59 | marker4 = "\f\033@" |
---|
60 | |
---|
61 | data = self.infile.read() |
---|
62 | pagecount1 = data.count(marker1) |
---|
63 | pagecount2 = max(data.count(marker2r), data.count(marker2rn)) |
---|
64 | pagecount3 = data.count(marker3) |
---|
65 | pagecount4 = data.count(marker4) |
---|
66 | |
---|
67 | if pagecount2 : |
---|
68 | return pagecount2 |
---|
69 | elif pagecount3 > 1 : |
---|
70 | return pagecount3 - 1 |
---|
71 | elif pagecount4 : |
---|
72 | return pagecount4 |
---|
73 | else : |
---|
74 | return int(pagecount1 / 2) |
---|
75 | |
---|
76 | def test() : |
---|
77 | """Test function.""" |
---|
78 | if (len(sys.argv) < 2) or ((not sys.stdin.isatty()) and ("-" not in sys.argv[1:])) : |
---|
79 | sys.argv.append("-") |
---|
80 | totalsize = 0 |
---|
81 | for arg in sys.argv[1:] : |
---|
82 | if arg == "-" : |
---|
83 | infile = sys.stdin |
---|
84 | mustclose = 0 |
---|
85 | else : |
---|
86 | infile = open(arg, "rb") |
---|
87 | mustclose = 1 |
---|
88 | try : |
---|
89 | parser = Parser(infile, debug=1) |
---|
90 | totalsize += parser.getJobSize() |
---|
91 | except pdlparser.PDLParserError, msg : |
---|
92 | sys.stderr.write("ERROR: %s\n" % msg) |
---|
93 | sys.stderr.flush() |
---|
94 | if mustclose : |
---|
95 | infile.close() |
---|
96 | print "%s" % totalsize |
---|
97 | |
---|
98 | if __name__ == "__main__" : |
---|
99 | test() |
---|