1 | #! /usr/bin/env python |
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2 | # -*- coding: ISO-8859-15 -*- |
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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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23 | # |
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24 | |
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25 | import sys |
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26 | import os |
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27 | import re |
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28 | from struct import unpack |
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29 | import tempfile |
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30 | import mmap |
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31 | import popen2 |
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32 | |
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33 | __version__ = "1.00" |
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34 | |
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35 | KILOBYTE = 1024 |
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36 | MEGABYTE = 1024 * KILOBYTE |
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37 | LASTBLOCKSIZE = int(KILOBYTE / 4) |
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38 | |
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39 | class PDLAnalyzerError(Exception): |
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40 | """An exception for PDL Analyzer related stuff.""" |
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41 | def __init__(self, message = ""): |
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42 | self.message = message |
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43 | Exception.__init__(self, message) |
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44 | def __repr__(self): |
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45 | return self.message |
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46 | __str__ = __repr__ |
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47 | |
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48 | class PostScriptAnalyzer : |
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49 | """A class to parse PostScript documents.""" |
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50 | def __init__(self, infile, debug=0) : |
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51 | """Initialize PostScript Analyzer.""" |
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52 | self.debug = debug |
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53 | self.infile = infile |
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54 | self.copies = 1 |
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55 | |
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56 | def throughGhostScript(self) : |
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57 | """Get the count through GhostScript, useful for non-DSC compliant PS files.""" |
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58 | if self.debug : |
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59 | sys.stderr.write("Internal parser sucks, using GhostScript instead...\n") |
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60 | self.infile.seek(0) |
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61 | command = 'gs -sDEVICE=bbox -dNOPAUSE -dBATCH -dQUIET - 2>&1 | grep -c "%%HiResBoundingBox:" 2>/dev/null' |
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62 | child = popen2.Popen4(command) |
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63 | try : |
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64 | data = self.infile.read(MEGABYTE) |
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65 | while data : |
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66 | child.tochild.write(data) |
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67 | data = self.infile.read(MEGABYTE) |
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68 | child.tochild.flush() |
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69 | child.tochild.close() |
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70 | except (IOError, OSError), msg : |
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71 | raise PDLAnalyzerError, "Problem during analysis of Binary PostScript document : %s" % msg |
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72 | |
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73 | pagecount = 0 |
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74 | try : |
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75 | pagecount = int(child.fromchild.readline().strip()) |
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76 | except (IOError, OSError, AttributeError, ValueError), msg : |
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77 | raise PDLAnalyzerError, "Problem during analysis of Binary PostScript document : %s" % msg |
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78 | child.fromchild.close() |
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79 | |
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80 | try : |
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81 | child.wait() |
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82 | except OSError, msg : |
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83 | raise PDLAnalyzerError, "Problem during analysis of Binary PostScript document : %s" % msg |
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84 | return pagecount * self.copies |
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85 | |
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86 | def natively(self) : |
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87 | """Count pages in a DSC compliant PostScript document.""" |
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88 | self.infile.seek(0) |
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89 | pagecount = 0 |
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90 | for line in self.infile.xreadlines() : |
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91 | if line.startswith("%%Page: ") : |
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92 | pagecount += 1 |
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93 | elif line.startswith("%%Requirements: numcopies(") : |
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94 | try : |
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95 | number = int(line.strip().split('(')[1].split(')')[0]) |
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96 | except : |
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97 | pass |
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98 | else : |
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99 | if number > self.copies : |
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100 | self.copies = number |
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101 | elif line.startswith("%%BeginNonPPDFeature: NumCopies ") : |
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102 | # handle # of copies set by some Windows printer driver |
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103 | try : |
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104 | number = int(line.strip().split()[2]) |
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105 | except : |
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106 | pass |
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107 | else : |
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108 | if number > self.copies : |
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109 | self.copies = number |
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110 | elif line.startswith("1 dict dup /NumCopies ") : |
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111 | # handle # of copies set by mozilla/kprinter |
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112 | try : |
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113 | number = int(line.strip().split()[4]) |
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114 | except : |
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115 | pass |
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116 | else : |
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117 | if number > self.copies : |
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118 | self.copies = number |
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119 | return pagecount * self.copies |
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120 | |
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121 | def getJobSize(self) : |
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122 | """Count pages in PostScript document.""" |
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123 | return self.natively() or self.throughGhostScript() |
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124 | |
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125 | class PDFAnalyzer : |
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126 | """A class to parse PDF documents.""" |
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127 | def __init__(self, infile, debug=0) : |
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128 | """Initialize PDF Analyzer.""" |
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129 | self.debug = debug |
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130 | self.infile = infile |
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131 | |
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132 | def getJobSize(self) : |
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133 | """Counts pages in a PDF document.""" |
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134 | regexp = re.compile(r"(/Type) ?(/Page)[/ \t\r\n]") |
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135 | pagecount = 0 |
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136 | for line in self.infile.xreadlines() : |
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137 | pagecount += len(regexp.findall(line)) |
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138 | return pagecount |
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139 | |
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140 | class ESCP2Analyzer : |
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141 | """A class to parse ESC/P2 documents.""" |
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142 | def __init__(self, infile, debug=0) : |
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143 | """Initialize ESC/P2 Analyzer.""" |
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144 | self.debug = debug |
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145 | self.infile = infile |
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146 | |
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147 | def getJobSize(self) : |
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148 | """Counts pages in an ESC/P2 document.""" |
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149 | # with Gimpprint, at least, for each page there |
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150 | # are two Reset Printer sequences (ESC + @) |
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151 | marker1 = "\033@" |
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152 | |
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153 | # with other software or printer driver, we |
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154 | # may prefer to search for "\r\n\fESCAPE" |
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155 | # or "\r\fESCAPE" |
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156 | marker2r = "\r\f\033" |
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157 | marker2rn = "\r\n\f\033" |
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158 | |
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159 | # and ghostscript's stcolor for example seems to |
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160 | # output ESC + @ + \f for each page plus one |
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161 | marker3 = "\033@\f" |
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162 | |
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163 | # while ghostscript's escp driver outputs instead |
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164 | # \f + ESC + @ |
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165 | marker4 = "\f\033@" |
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166 | |
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167 | data = self.infile.read() |
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168 | pagecount1 = data.count(marker1) |
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169 | pagecount2 = max(data.count(marker2r), data.count(marker2rn)) |
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170 | pagecount3 = data.count(marker3) |
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171 | pagecount4 = data.count(marker4) |
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172 | |
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173 | if pagecount2 : |
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174 | return pagecount2 |
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175 | elif pagecount3 > 1 : |
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176 | return pagecount3 - 1 |
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177 | elif pagecount4 : |
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178 | return pagecount4 |
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179 | else : |
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180 | return int(pagecount1 / 2) |
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181 | |
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182 | class PCLAnalyzer : |
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183 | """A class to parse PCL3, PCL4, PCL5 documents.""" |
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184 | mediasizes = { # ESC&l####A |
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185 | 0 : "Default", |
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186 | 1 : "Executive", |
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187 | 2 : "Letter", |
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188 | 3 : "Legal", |
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189 | 6 : "Ledger", |
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190 | 25 : "A5", |
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191 | 26 : "A4", |
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192 | 27 : "A3", |
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193 | 45 : "JB5", |
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194 | 46 : "JB4", |
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195 | 71 : "HagakiPostcard", |
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196 | 72 : "OufukuHagakiPostcard", |
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197 | 80 : "MonarchEnvelope", |
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198 | 81 : "COM10Envelope", |
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199 | 90 : "DLEnvelope", |
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200 | 91 : "C5Envelope", |
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201 | 100 : "B5Envelope", |
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202 | 101 : "Custom", |
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203 | } |
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204 | |
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205 | mediasources = { # ESC&l####H |
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206 | 0 : "Default", |
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207 | 1 : "Main", |
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208 | 2 : "Manual", |
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209 | 3 : "ManualEnvelope", |
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210 | 4 : "Alternate", |
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211 | 5 : "OptionalLarge", |
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212 | 6 : "EnvelopeFeeder", |
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213 | 7 : "Auto", |
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214 | 8 : "Tray1", |
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215 | } |
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216 | |
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217 | orientations = { # ESC&l####O |
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218 | 0 : "Portrait", |
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219 | 1 : "Landscape", |
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220 | 2 : "ReversePortrait", |
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221 | 3 : "ReverseLandscape", |
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222 | } |
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223 | |
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224 | mediatypes = { # ESC&l####M |
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225 | 0 : "Plain", |
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226 | 1 : "Bond", |
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227 | 2 : "Special", |
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228 | 3 : "Glossy", |
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229 | 4 : "Transparent", |
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230 | } |
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231 | |
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232 | |
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233 | def __init__(self, infile, debug=0) : |
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234 | """Initialize PCL Analyzer.""" |
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235 | self.debug = debug |
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236 | self.infile = infile |
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237 | |
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238 | def setPageDict(self, pages, number, attribute, value) : |
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239 | """Initializes a page dictionnary.""" |
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240 | dict = pages.setdefault(number, { "copies" : 1, "mediasource" : "Main", "mediasize" : "Default", "mediatype" : "Plain", "orientation" : "Portrait"}) |
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241 | dict[attribute] = value |
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242 | |
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243 | def getJobSize(self) : |
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244 | """Count pages in a PCL5 document. |
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245 | |
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246 | Should also work for PCL3 and PCL4 documents. |
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247 | |
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248 | Algorithm from pclcount |
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249 | (c) 2003, by Eduardo Gielamo Oliveira & Rodolfo Broco Manin |
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250 | published under the terms of the GNU General Public Licence v2. |
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251 | |
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252 | Backported from C to Python by Jerome Alet, then enhanced |
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253 | with more PCL tags detected. I think all the necessary PCL tags |
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254 | are recognized to correctly handle PCL5 files wrt their number |
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255 | of pages. The documentation used for this was : |
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256 | |
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257 | HP PCL/PJL Reference Set |
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258 | PCL5 Printer Language Technical Quick Reference Guide |
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259 | http://h20000.www2.hp.com/bc/docs/support/SupportManual/bpl13205/bpl13205.pdf |
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260 | """ |
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261 | infileno = self.infile.fileno() |
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262 | minfile = mmap.mmap(infileno, os.fstat(infileno)[6], prot=mmap.PROT_READ, flags=mmap.MAP_SHARED) |
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263 | tagsends = { "&n" : "W", |
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264 | "&b" : "W", |
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265 | "*i" : "W", |
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266 | "*l" : "W", |
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267 | "*m" : "W", |
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268 | "*v" : "W", |
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269 | "*c" : "W", |
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270 | "(f" : "W", |
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271 | "(s" : "W", |
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272 | ")s" : "W", |
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273 | "&p" : "X", |
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274 | # "&l" : "XHAOM", # treated specially |
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275 | "&a" : "G", # TODO : 0 means next side, 1 front side, 2 back side |
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276 | "*g" : "W", |
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277 | "*r" : "sbABC", |
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278 | "*t" : "R", |
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279 | # "*b" : "VW", # treated specially because it occurs very often |
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280 | } |
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281 | pagecount = resets = ejects = backsides = startgfx = endgfx = 0 |
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282 | starb = ampl = ispcl3 = escstart = 0 |
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283 | mediasourcecount = mediasizecount = orientationcount = mediatypecount = 0 |
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284 | tag = None |
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285 | pages = {} |
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286 | pos = 0 |
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287 | try : |
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288 | while 1 : |
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289 | char = minfile[pos] ; pos += 1 |
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290 | if char == "\014" : |
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291 | pagecount += 1 |
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292 | elif char == "\033" : |
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293 | starb = ampl = 0 |
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294 | # |
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295 | # <ESC>*b###y#m###v###w... -> PCL3 raster graphics |
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296 | # <ESC>*b###W -> Start of a raster data row/block |
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297 | # <ESC>*b###V -> Start of a raster data plane |
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298 | # <ESC>*c###W -> Start of a user defined pattern |
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299 | # <ESC>*i###W -> Start of a viewing illuminant block |
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300 | # <ESC>*l###W -> Start of a color lookup table |
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301 | # <ESC>*m###W -> Start of a download dither matrix block |
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302 | # <ESC>*v###W -> Start of a configure image data block |
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303 | # <ESC>*r1A -> Start Gfx |
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304 | # <ESC>(s###W -> Start of a characters description block |
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305 | # <ESC>)s###W -> Start of a fonts description block |
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306 | # <ESC>(f###W -> Start of a symbol set block |
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307 | # <ESC>&b###W -> Start of configuration data block |
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308 | # <ESC>&l###X -> Number of copies for current page |
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309 | # <ESC>&n###W -> Starts an alphanumeric string ID block |
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310 | # <ESC>&p###X -> Start of a non printable characters block |
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311 | # <ESC>&a2G -> Back side when duplex mode as generated by rastertohp |
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312 | # <ESC>*g###W -> Needed for planes in PCL3 output |
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313 | # <ESC>&l###H (or only 0 ?) -> Eject if NumPlanes > 1, as generated by rastertohp. Also defines mediasource |
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314 | # <ESC>&l###A -> mediasize |
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315 | # <ESC>&l###O -> orientation |
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316 | # <ESC>&l###M -> mediatype |
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317 | # <ESC>*t###R -> gfx resolution |
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318 | # |
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319 | tagstart = minfile[pos] ; pos += 1 |
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320 | if tagstart in "E9=YZ" : # one byte PCL tag |
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321 | if tagstart == "E" : |
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322 | resets += 1 |
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323 | continue # skip to next tag |
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324 | tag = tagstart + minfile[pos] ; pos += 1 |
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325 | if tag == "*b" : |
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326 | starb = 1 |
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327 | tagend = "VW" |
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328 | elif tag == "&l" : |
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329 | ampl = 1 |
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330 | tagend = "XHAOM" |
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331 | else : |
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332 | try : |
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333 | tagend = tagsends[tag] |
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334 | except KeyError : |
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335 | continue # Unsupported PCL tag |
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336 | # Now read the numeric argument |
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337 | size = 0 |
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338 | while 1 : |
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339 | char = minfile[pos] ; pos += 1 |
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340 | if not char.isdigit() : |
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341 | break |
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342 | size = (size * 10) + int(char) |
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343 | if char in tagend : |
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344 | if tag == "&l" : |
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345 | if char == "X" : |
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346 | self.setPageDict(pages, pagecount, "copies", size) |
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347 | elif char == "H" : |
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348 | self.setPageDict(pages, pagecount, "mediasource", self.mediasources.get(size, str(size))) |
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349 | mediasourcecount += 1 |
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350 | ejects += 1 |
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351 | elif char == "A" : |
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352 | self.setPageDict(pages, pagecount, "mediasize", self.mediasizes.get(size, str(size))) |
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353 | mediasizecount += 1 |
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354 | elif char == "O" : |
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355 | self.setPageDict(pages, pagecount, "orientation", self.orientations.get(size, str(size))) |
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356 | orientationcount += 1 |
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357 | elif char == "M" : |
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358 | self.setPageDict(pages, pagecount, "mediatype", self.mediatypes.get(size, str(size))) |
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359 | mediatypecount += 1 |
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360 | elif tag == "*r" : |
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361 | # Special tests for PCL3 |
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362 | if (char == "s") and size : |
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363 | while 1 : |
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364 | char = minfile[pos] ; pos += 1 |
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365 | if char == "A" : |
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366 | break |
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367 | elif (char == "b") and (minfile[pos] == "C") and not size : |
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368 | ispcl3 = 1 # Certainely a PCL3 file |
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369 | startgfx += (char == "A") and (minfile[pos - 2] in ("0", "1", "2", "3")) # Start Gfx |
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370 | endgfx += (not size) and (char in ("C", "B")) # End Gfx |
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371 | elif tag == "*t" : |
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372 | escstart += 1 |
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373 | elif (tag == "&a") and (size == 2) : |
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374 | backsides += 1 # Back side in duplex mode |
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375 | else : |
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376 | # we just ignore the block. |
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377 | if tag == "&n" : |
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378 | # we have to take care of the operation id byte |
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379 | # which is before the string itself |
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380 | size += 1 |
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381 | pos += size |
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382 | else : |
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383 | if starb : |
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384 | # special handling of PCL3 in which |
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385 | # *b introduces combined ESCape sequences |
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386 | size = 0 |
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387 | while 1 : |
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388 | char = minfile[pos] ; pos += 1 |
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389 | if not char.isdigit() : |
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390 | break |
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391 | size = (size * 10) + int(char) |
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392 | if char in ("w", "v") : |
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393 | ispcl3 = 1 # certainely a PCL3 document |
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394 | pos += size - 1 |
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395 | elif char in ("y", "m") : |
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396 | ispcl3 = 1 # certainely a PCL3 document |
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397 | pos -= 1 # fix position : we were ahead |
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398 | elif ampl : |
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399 | # special handling of PCL3 in which |
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400 | # &l introduces combined ESCape sequences |
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401 | size = 0 |
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402 | while 1 : |
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403 | char = minfile[pos] ; pos += 1 |
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404 | if not char.isdigit() : |
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405 | break |
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406 | size = (size * 10) + int(char) |
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407 | if char in ("a", "o", "h", "m") : |
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408 | ispcl3 = 1 # certainely a PCL3 document |
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409 | pos -= 1 # fix position : we were ahead |
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410 | if char == "h" : |
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411 | self.setPageDict(pages, pagecount, "mediasource", self.mediasources.get(size, str(size))) |
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412 | mediasourcecount += 1 |
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413 | elif char == "a" : |
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414 | self.setPageDict(pages, pagecount, "mediasize", self.mediasizes.get(size, str(size))) |
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415 | mediasizecount += 1 |
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416 | elif char == "o" : |
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417 | self.setPageDict(pages, pagecount, "orientation", self.orientations.get(size, str(size))) |
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418 | orientationcount += 1 |
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419 | elif char == "m" : |
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420 | self.setPageDict(pages, pagecount, "mediatype", self.mediatypes.get(size, str(size))) |
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421 | mediatypecount += 1 |
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422 | except IndexError : # EOF ? |
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423 | minfile.close() # reached EOF |
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424 | |
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425 | # if pagecount is still 0, we will use the number |
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426 | # of resets instead of the number of form feed characters. |
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427 | # but the number of resets is always at least 2 with a valid |
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428 | # pcl file : one at the very start and one at the very end |
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429 | # of the job's data. So we substract 2 from the number of |
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430 | # resets. And since on our test data we needed to substract |
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431 | # 1 more, we finally substract 3, and will test several |
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432 | # PCL files with this. If resets < 2, then the file is |
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433 | # probably not a valid PCL file, so we use 0 |
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434 | |
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435 | if self.debug : |
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436 | sys.stderr.write("pagecount : %s\n" % pagecount) |
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437 | sys.stderr.write("resets : %s\n" % resets) |
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438 | sys.stderr.write("ejects : %s\n" % ejects) |
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439 | sys.stderr.write("backsides : %s\n" % backsides) |
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440 | sys.stderr.write("startgfx : %s\n" % startgfx) |
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441 | sys.stderr.write("endgfx : %s\n" % endgfx) |
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442 | sys.stderr.write("mediasourcecount : %s\n" % mediasourcecount) |
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443 | sys.stderr.write("mediasizecount : %s\n" % mediasizecount) |
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444 | sys.stderr.write("orientationcount : %s\n" % orientationcount) |
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445 | sys.stderr.write("mediatypecount : %s\n" % mediatypecount) |
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446 | sys.stderr.write("escstart : %s\n" % escstart) |
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447 | |
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448 | # if not pagecount : |
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449 | # pagecount = (pagecount or ((resets - 3) * (resets > 2))) |
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450 | # else : |
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451 | # # here we add counters for other ways new pages may have |
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452 | # # been printed and ejected by the printer |
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453 | # pagecount += ejects + backsides |
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454 | # |
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455 | # # now handle number of copies for each page (may differ). |
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456 | # # in duplex mode, number of copies may be sent only once. |
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457 | # for pnum in range(pagecount) : |
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458 | # # if no number of copies defined, take the preceding one else the one set before any page else 1. |
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459 | # page = pages.get(pnum, pages.get(pnum - 1, pages.get(0, { "copies" : 1 }))) |
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460 | # pagecount += (page["copies"] - 1) |
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461 | # |
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462 | # # in PCL3 files, there's one Start Gfx tag per page |
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463 | # if ispcl3 : |
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464 | # if endgfx == int(startgfx / 2) : # special case for cdj1600 |
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465 | # pagecount = endgfx |
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466 | # elif startgfx : |
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467 | # pagecount = startgfx |
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468 | # elif endgfx : |
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469 | # pagecount = endgfx |
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470 | |
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471 | |
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472 | if pagecount == mediasourcecount == escstart : |
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473 | pass # should be OK. |
---|
474 | elif (not startgfx) and (not endgfx) : |
---|
475 | pagecount = ejects or pagecount |
---|
476 | elif startgfx == endgfx : |
---|
477 | pagecount = startgfx |
---|
478 | elif startgfx == (endgfx - 1) : |
---|
479 | pagecount = startgfx |
---|
480 | else : |
---|
481 | pagecount = abs(startgfx - endgfx) |
---|
482 | |
---|
483 | if self.debug : |
---|
484 | for pnum in range(pagecount) : |
---|
485 | # if no number of copies defined, take the preceding one else the one set before any page else 1. |
---|
486 | page = pages.get(pnum, pages.get(pnum - 1, pages.get(0, { "copies" : 1, "mediasource" : "Main", "mediasize" : "Default", "mediatype" : "Plain", "orientation" : "Portrait"}))) |
---|
487 | sys.stderr.write("%s*%s*%s*%s*%s\n" % (page["copies"], page["mediatype"], page["mediasize"], page["orientation"], page["mediasource"])) |
---|
488 | |
---|
489 | return pagecount |
---|
490 | |
---|
491 | class PCLXLAnalyzer : |
---|
492 | """A class to parse PCL6 (aka XL) documents.""" |
---|
493 | mediasizes = { |
---|
494 | 0 : "Letter", |
---|
495 | 1 : "Legal", |
---|
496 | 2 : "A4", |
---|
497 | 3 : "Executive", |
---|
498 | 4 : "Ledger", |
---|
499 | 5 : "A3", |
---|
500 | 6 : "COM10Envelope", |
---|
501 | 7 : "MonarchEnvelope", |
---|
502 | 8 : "C5Envelope", |
---|
503 | 9 : "DLEnvelope", |
---|
504 | 10 : "JB4", |
---|
505 | 11 : "JB5", |
---|
506 | 12 : "B5Envelope", |
---|
507 | 14 : "JPostcard", |
---|
508 | 15 : "JDoublePostcard", |
---|
509 | 16 : "A5", |
---|
510 | 17 : "A6", |
---|
511 | 18 : "JB6", |
---|
512 | } |
---|
513 | |
---|
514 | mediasources = { |
---|
515 | 0 : "Default", |
---|
516 | 1 : "Auto", |
---|
517 | 2 : "Manual", |
---|
518 | 3 : "MultiPurpose", |
---|
519 | 4 : "UpperCassette", |
---|
520 | 5 : "LowerCassette", |
---|
521 | 6 : "EnvelopeTray", |
---|
522 | 7 : "ThirdCassette", |
---|
523 | } |
---|
524 | |
---|
525 | orientations = { |
---|
526 | 0 : "Portrait", |
---|
527 | 1 : "Landscape", |
---|
528 | 2 : "ReversePortrait", |
---|
529 | 3 : "ReverseLandscape", |
---|
530 | } |
---|
531 | |
---|
532 | def __init__(self, infile, debug=0) : |
---|
533 | """Initialize PCLXL Analyzer.""" |
---|
534 | self.debug = debug |
---|
535 | self.infile = infile |
---|
536 | self.endianness = None |
---|
537 | found = 0 |
---|
538 | while not found : |
---|
539 | line = self.infile.readline() |
---|
540 | if not line : |
---|
541 | break |
---|
542 | if line[1:12] == " HP-PCL XL;" : |
---|
543 | found = 1 |
---|
544 | endian = ord(line[0]) |
---|
545 | if endian == 0x29 : |
---|
546 | self.littleEndian() |
---|
547 | elif endian == 0x28 : |
---|
548 | self.bigEndian() |
---|
549 | # elif endian == 0x27 : # TODO : This is the ESC code : parse it for PJL statements ! |
---|
550 | # |
---|
551 | else : |
---|
552 | raise PDLAnalyzerError, "Unknown endianness marker 0x%02x at start !" % endian |
---|
553 | if not found : |
---|
554 | raise PDLAnalyzerError, "This file doesn't seem to be PCLXL (aka PCL6)" |
---|
555 | else : |
---|
556 | # Initialize table of tags |
---|
557 | self.tags = [ 0 ] * 256 |
---|
558 | |
---|
559 | # GhostScript's sources tell us that HP printers |
---|
560 | # only accept little endianness, but we can handle both. |
---|
561 | self.tags[0x28] = self.bigEndian # BigEndian |
---|
562 | self.tags[0x29] = self.littleEndian # LittleEndian |
---|
563 | |
---|
564 | self.tags[0x43] = self.beginPage # BeginPage |
---|
565 | self.tags[0x44] = self.endPage # EndPage |
---|
566 | |
---|
567 | self.tags[0xc0] = 1 # ubyte |
---|
568 | self.tags[0xc1] = 2 # uint16 |
---|
569 | self.tags[0xc2] = 4 # uint32 |
---|
570 | self.tags[0xc3] = 2 # sint16 |
---|
571 | self.tags[0xc4] = 4 # sint32 |
---|
572 | self.tags[0xc5] = 4 # real32 |
---|
573 | |
---|
574 | self.tags[0xc8] = self.array_8 # ubyte_array |
---|
575 | self.tags[0xc9] = self.array_16 # uint16_array |
---|
576 | self.tags[0xca] = self.array_32 # uint32_array |
---|
577 | self.tags[0xcb] = self.array_16 # sint16_array |
---|
578 | self.tags[0xcc] = self.array_32 # sint32_array |
---|
579 | self.tags[0xcd] = self.array_32 # real32_array |
---|
580 | |
---|
581 | self.tags[0xd0] = 2 # ubyte_xy |
---|
582 | self.tags[0xd1] = 4 # uint16_xy |
---|
583 | self.tags[0xd2] = 8 # uint32_xy |
---|
584 | self.tags[0xd3] = 4 # sint16_xy |
---|
585 | self.tags[0xd4] = 8 # sint32_xy |
---|
586 | self.tags[0xd5] = 8 # real32_xy |
---|
587 | |
---|
588 | self.tags[0xe0] = 4 # ubyte_box |
---|
589 | self.tags[0xe1] = 8 # uint16_box |
---|
590 | self.tags[0xe2] = 16 # uint32_box |
---|
591 | self.tags[0xe3] = 8 # sint16_box |
---|
592 | self.tags[0xe4] = 16 # sint32_box |
---|
593 | self.tags[0xe5] = 16 # real32_box |
---|
594 | |
---|
595 | self.tags[0xf8] = 1 # attr_ubyte |
---|
596 | self.tags[0xf9] = 2 # attr_uint16 |
---|
597 | |
---|
598 | self.tags[0xfa] = self.embeddedData # dataLength |
---|
599 | self.tags[0xfb] = self.embeddedDataSmall # dataLengthByte |
---|
600 | |
---|
601 | def beginPage(self) : |
---|
602 | """Indicates the beginning of a new page, and extracts media information.""" |
---|
603 | self.pagecount += 1 |
---|
604 | |
---|
605 | # Default values |
---|
606 | mediatypelabel = "Plain" |
---|
607 | mediasourcelabel = "Main" |
---|
608 | mediasizelabel = "Default" |
---|
609 | orientationlabel = "Portrait" |
---|
610 | |
---|
611 | # Now go upstream to decode media type, size, source, and orientation |
---|
612 | # this saves time because we don't need a complete parser ! |
---|
613 | minfile = self.minfile |
---|
614 | pos = self.pos - 2 |
---|
615 | while pos > 0 : # safety check : don't go back to far ! |
---|
616 | val = ord(minfile[pos]) |
---|
617 | if val in (0x44, 0x48, 0x41) : # if previous endPage or openDataSource or beginSession (first page) |
---|
618 | break |
---|
619 | if val == 0x26 : |
---|
620 | mediasource = ord(minfile[pos - 2]) |
---|
621 | mediasourcelabel = self.mediasources.get(mediasource, str(mediasource)) |
---|
622 | pos = pos - 4 |
---|
623 | elif val == 0x25 : |
---|
624 | mediasize = ord(minfile[pos - 2]) |
---|
625 | mediasizelabel = self.mediasizes.get(mediasize, str(mediasize)) |
---|
626 | pos = pos - 4 |
---|
627 | elif val == 0x28 : |
---|
628 | orientation = ord(minfile[pos - 2]) |
---|
629 | orienationlabel = self.orientations.get(orientation, str(orientation)) |
---|
630 | pos = pos - 4 |
---|
631 | elif val == 0x27 : |
---|
632 | savepos = pos |
---|
633 | pos = pos - 1 |
---|
634 | while pos > 0 : # safety check : don't go back to far ! |
---|
635 | val = ord(minfile[pos]) |
---|
636 | pos -= 1 |
---|
637 | if val == 0xc8 : |
---|
638 | break |
---|
639 | mediatypelabel = minfile[pos:savepos] # TODO : INCORRECT, WE HAVE TO STRIP OUT THE UBYTE ARRAY'S LENGTH !!! |
---|
640 | # else : TODO : CUSTOM MEDIA SIZE AND UNIT ! |
---|
641 | else : |
---|
642 | pos = pos - 2 # ignored |
---|
643 | self.pages[self.pagecount] = { "copies" : 1, |
---|
644 | "orientation" : orientationlabel, |
---|
645 | "mediatype" : mediatypelabel, |
---|
646 | "mediasize" : mediasizelabel, |
---|
647 | "mediasource" : mediasourcelabel, |
---|
648 | } |
---|
649 | return 0 |
---|
650 | |
---|
651 | def endPage(self) : |
---|
652 | """Indicates the end of a page.""" |
---|
653 | pos = self.pos |
---|
654 | minfile = self.minfile |
---|
655 | if (ord(minfile[pos-3]) == 0xf8) and (ord(minfile[pos-2]) == 0x31) : |
---|
656 | # The EndPage operator may be preceded by a PageCopies attribute |
---|
657 | # So set number of copies for current page. |
---|
658 | # From what I read in PCLXL documentation, the number |
---|
659 | # of copies is an unsigned 16 bits integer |
---|
660 | self.pages[self.pagecount]["copies"] = unpack(self.endianness + "H", minfile[pos-5:pos-3])[0] |
---|
661 | return 0 |
---|
662 | |
---|
663 | def array_8(self) : |
---|
664 | """Handles byte arrays.""" |
---|
665 | pos = self.pos |
---|
666 | datatype = self.minfile[pos] |
---|
667 | pos += 1 |
---|
668 | length = self.tags[ord(datatype)] |
---|
669 | if callable(length) : |
---|
670 | self.pos = pos |
---|
671 | length = length() |
---|
672 | pos = self.pos |
---|
673 | posl = pos + length |
---|
674 | self.pos = posl |
---|
675 | if length == 1 : |
---|
676 | return unpack("B", self.minfile[pos:posl])[0] |
---|
677 | elif length == 2 : |
---|
678 | return unpack(self.endianness + "H", self.minfile[pos:posl])[0] |
---|
679 | elif length == 4 : |
---|
680 | return unpack(self.endianness + "I", self.minfile[pos:posl])[0] |
---|
681 | else : |
---|
682 | raise PDLAnalyzerError, "Error on array size at %s" % self.pos |
---|
683 | |
---|
684 | def array_16(self) : |
---|
685 | """Handles byte arrays.""" |
---|
686 | pos = self.pos |
---|
687 | datatype = self.minfile[pos] |
---|
688 | pos += 1 |
---|
689 | length = self.tags[ord(datatype)] |
---|
690 | if callable(length) : |
---|
691 | self.pos = pos |
---|
692 | length = length() |
---|
693 | pos = self.pos |
---|
694 | posl = pos + length |
---|
695 | self.pos = posl |
---|
696 | if length == 1 : |
---|
697 | return 2 * unpack("B", self.minfile[pos:posl])[0] |
---|
698 | elif length == 2 : |
---|
699 | return 2 * unpack(self.endianness + "H", self.minfile[pos:posl])[0] |
---|
700 | elif length == 4 : |
---|
701 | return 2 * unpack(self.endianness + "I", self.minfile[pos:posl])[0] |
---|
702 | else : |
---|
703 | raise PDLAnalyzerError, "Error on array size at %s" % self.pos |
---|
704 | |
---|
705 | def array_32(self) : |
---|
706 | """Handles byte arrays.""" |
---|
707 | pos = self.pos |
---|
708 | datatype = self.minfile[pos] |
---|
709 | pos += 1 |
---|
710 | length = self.tags[ord(datatype)] |
---|
711 | if callable(length) : |
---|
712 | self.pos = pos |
---|
713 | length = length() |
---|
714 | pos = self.pos |
---|
715 | posl = pos + length |
---|
716 | self.pos = posl |
---|
717 | if length == 1 : |
---|
718 | return 4 * unpack("B", self.minfile[pos:posl])[0] |
---|
719 | elif length == 2 : |
---|
720 | return 4 * unpack(self.endianness + "H", self.minfile[pos:posl])[0] |
---|
721 | elif length == 4 : |
---|
722 | return 4 * unpack(self.endianness + "I", self.minfile[pos:posl])[0] |
---|
723 | else : |
---|
724 | raise PDLAnalyzerError, "Error on array size at %s" % self.pos |
---|
725 | |
---|
726 | def embeddedDataSmall(self) : |
---|
727 | """Handle small amounts of data.""" |
---|
728 | pos = self.pos |
---|
729 | length = ord(self.minfile[pos]) |
---|
730 | self.pos = pos + 1 |
---|
731 | return length |
---|
732 | |
---|
733 | def embeddedData(self) : |
---|
734 | """Handle normal amounts of data.""" |
---|
735 | pos = self.pos |
---|
736 | pos4 = pos + 4 |
---|
737 | self.pos = pos4 |
---|
738 | return unpack(self.endianness + "I", self.minfile[pos:pos4])[0] |
---|
739 | |
---|
740 | def littleEndian(self) : |
---|
741 | """Toggles to little endianness.""" |
---|
742 | self.endianness = "<" # little endian |
---|
743 | return 0 |
---|
744 | |
---|
745 | def bigEndian(self) : |
---|
746 | """Toggles to big endianness.""" |
---|
747 | self.endianness = ">" # big endian |
---|
748 | return 0 |
---|
749 | |
---|
750 | def getJobSize(self) : |
---|
751 | """Counts pages in a PCLXL (PCL6) document. |
---|
752 | |
---|
753 | Algorithm by Jerome Alet. |
---|
754 | |
---|
755 | The documentation used for this was : |
---|
756 | |
---|
757 | HP PCL XL Feature Reference |
---|
758 | Protocol Class 2.0 |
---|
759 | http://www.hpdevelopersolutions.com/downloads/64/358/xl_ref20r22.pdf |
---|
760 | """ |
---|
761 | infileno = self.infile.fileno() |
---|
762 | self.pages = {} |
---|
763 | self.minfile = minfile = mmap.mmap(infileno, os.fstat(infileno)[6], prot=mmap.PROT_READ, flags=mmap.MAP_SHARED) |
---|
764 | tags = self.tags |
---|
765 | self.pagecount = 0 |
---|
766 | self.pos = pos = self.infile.tell() |
---|
767 | try : |
---|
768 | while 1 : |
---|
769 | char = minfile[pos] |
---|
770 | pos += 1 |
---|
771 | length = tags[ord(char)] |
---|
772 | if not length : |
---|
773 | continue |
---|
774 | if callable(length) : |
---|
775 | self.pos = pos |
---|
776 | length = length() |
---|
777 | pos = self.pos |
---|
778 | pos += length |
---|
779 | except IndexError : # EOF ? |
---|
780 | self.minfile.close() # reached EOF |
---|
781 | |
---|
782 | # now handle number of copies for each page (may differ). |
---|
783 | for pnum in range(1, self.pagecount + 1) : |
---|
784 | # if no number of copies defined, take 1, as explained |
---|
785 | # in PCLXL documentation. |
---|
786 | # NB : is number of copies is 0, the page won't be output |
---|
787 | # but the formula below is still correct : we want |
---|
788 | # to decrease the total number of pages in this case. |
---|
789 | page = self.pages.get(pnum, 1) |
---|
790 | copies = page["copies"] |
---|
791 | self.pagecount += (copies - 1) |
---|
792 | if self.debug : |
---|
793 | sys.stderr.write("%s*%s*%s*%s*%s\n" % (copies, page["mediatype"], page["mediasize"], page["orientation"], page["mediasource"])) |
---|
794 | |
---|
795 | return self.pagecount |
---|
796 | |
---|
797 | class PDLAnalyzer : |
---|
798 | """Generic PDL Analyzer class.""" |
---|
799 | def __init__(self, filename, debug=0) : |
---|
800 | """Initializes the PDL analyzer. |
---|
801 | |
---|
802 | filename is the name of the file or '-' for stdin. |
---|
803 | filename can also be a file-like object which |
---|
804 | supports read() and seek(). |
---|
805 | """ |
---|
806 | self.debug = debug |
---|
807 | self.filename = filename |
---|
808 | try : |
---|
809 | import psyco |
---|
810 | except ImportError : |
---|
811 | sys.stderr.write("pkpgcounter : you should install psyco if possible, this would greatly speedup parsing.\n") |
---|
812 | pass # Psyco is not installed |
---|
813 | else : |
---|
814 | # Psyco is installed, tell it to compile |
---|
815 | # the CPU intensive methods : PCL and PCLXL |
---|
816 | # parsing will greatly benefit from this, |
---|
817 | # for PostScript and PDF the difference is |
---|
818 | # barely noticeable since they are already |
---|
819 | # almost optimal, and much more speedy anyway. |
---|
820 | psyco.bind(PostScriptAnalyzer.getJobSize) |
---|
821 | psyco.bind(PDFAnalyzer.getJobSize) |
---|
822 | psyco.bind(ESCP2Analyzer.getJobSize) |
---|
823 | psyco.bind(PCLAnalyzer.getJobSize) |
---|
824 | psyco.bind(PCLXLAnalyzer.getJobSize) |
---|
825 | |
---|
826 | def getJobSize(self) : |
---|
827 | """Returns the job's size.""" |
---|
828 | self.openFile() |
---|
829 | try : |
---|
830 | pdlhandler = self.detectPDLHandler() |
---|
831 | except PDLAnalyzerError, msg : |
---|
832 | self.closeFile() |
---|
833 | raise PDLAnalyzerError, "ERROR : Unknown file format for %s (%s)" % (self.filename, msg) |
---|
834 | else : |
---|
835 | try : |
---|
836 | size = pdlhandler(self.infile, self.debug).getJobSize() |
---|
837 | finally : |
---|
838 | self.closeFile() |
---|
839 | return size |
---|
840 | |
---|
841 | def openFile(self) : |
---|
842 | """Opens the job's data stream for reading.""" |
---|
843 | self.mustclose = 0 # by default we don't want to close the file when finished |
---|
844 | if hasattr(self.filename, "read") and hasattr(self.filename, "seek") : |
---|
845 | # filename is in fact a file-like object |
---|
846 | infile = self.filename |
---|
847 | elif self.filename == "-" : |
---|
848 | # we must read from stdin |
---|
849 | infile = sys.stdin |
---|
850 | else : |
---|
851 | # normal file |
---|
852 | self.infile = open(self.filename, "rb") |
---|
853 | self.mustclose = 1 |
---|
854 | return |
---|
855 | |
---|
856 | # Use a temporary file, always seekable contrary to standard input. |
---|
857 | self.infile = tempfile.TemporaryFile(mode="w+b") |
---|
858 | while 1 : |
---|
859 | data = infile.read(MEGABYTE) |
---|
860 | if not data : |
---|
861 | break |
---|
862 | self.infile.write(data) |
---|
863 | self.infile.flush() |
---|
864 | self.infile.seek(0) |
---|
865 | |
---|
866 | def closeFile(self) : |
---|
867 | """Closes the job's data stream if we can close it.""" |
---|
868 | if self.mustclose : |
---|
869 | self.infile.close() |
---|
870 | else : |
---|
871 | # if we don't have to close the file, then |
---|
872 | # ensure the file pointer is reset to the |
---|
873 | # start of the file in case the process wants |
---|
874 | # to read the file again. |
---|
875 | try : |
---|
876 | self.infile.seek(0) |
---|
877 | except : |
---|
878 | pass # probably stdin, which is not seekable |
---|
879 | |
---|
880 | def isPostScript(self, sdata, edata) : |
---|
881 | """Returns 1 if data is PostScript, else 0.""" |
---|
882 | if sdata.startswith("%!") or \ |
---|
883 | sdata.startswith("\004%!") or \ |
---|
884 | sdata.startswith("\033%-12345X%!PS") or \ |
---|
885 | ((sdata[:128].find("\033%-12345X") != -1) and \ |
---|
886 | ((sdata.find("LANGUAGE=POSTSCRIPT") != -1) or \ |
---|
887 | (sdata.find("LANGUAGE = POSTSCRIPT") != -1) or \ |
---|
888 | (sdata.find("LANGUAGE = Postscript") != -1))) or \ |
---|
889 | (sdata.find("%!PS-Adobe") != -1) : |
---|
890 | if self.debug : |
---|
891 | sys.stderr.write("%s is a PostScript file\n" % str(self.filename)) |
---|
892 | return 1 |
---|
893 | else : |
---|
894 | return 0 |
---|
895 | |
---|
896 | def isPDF(self, sdata, edata) : |
---|
897 | """Returns 1 if data is PDF, else 0.""" |
---|
898 | if sdata.startswith("%PDF-") or \ |
---|
899 | sdata.startswith("\033%-12345X%PDF-") or \ |
---|
900 | ((sdata[:128].find("\033%-12345X") != -1) and (sdata.upper().find("LANGUAGE=PDF") != -1)) or \ |
---|
901 | (sdata.find("%PDF-") != -1) : |
---|
902 | if self.debug : |
---|
903 | sys.stderr.write("%s is a PDF file\n" % str(self.filename)) |
---|
904 | return 1 |
---|
905 | else : |
---|
906 | return 0 |
---|
907 | |
---|
908 | def isPCL(self, sdata, edata) : |
---|
909 | """Returns 1 if data is PCL, else 0.""" |
---|
910 | if sdata.startswith("\033E\033") or \ |
---|
911 | (sdata.startswith("\033*rbC") and (not edata[-3:] == "\f\033@")) or \ |
---|
912 | sdata.startswith("\033%8\033") or \ |
---|
913 | (sdata.find("\033%-12345X") != -1) : |
---|
914 | if self.debug : |
---|
915 | sys.stderr.write("%s is a PCL3/4/5 file\n" % str(self.filename)) |
---|
916 | return 1 |
---|
917 | else : |
---|
918 | return 0 |
---|
919 | |
---|
920 | def isPCLXL(self, sdata, edata) : |
---|
921 | """Returns 1 if data is PCLXL aka PCL6, else 0.""" |
---|
922 | if ((sdata[:128].find("\033%-12345X") != -1) and \ |
---|
923 | (sdata.find(" HP-PCL XL;") != -1) and \ |
---|
924 | ((sdata.find("LANGUAGE=PCLXL") != -1) or \ |
---|
925 | (sdata.find("LANGUAGE = PCLXL") != -1))) : |
---|
926 | if self.debug : |
---|
927 | sys.stderr.write("%s is a PCLXL (aka PCL6) file\n" % str(self.filename)) |
---|
928 | return 1 |
---|
929 | else : |
---|
930 | return 0 |
---|
931 | |
---|
932 | def isESCP2(self, sdata, edata) : |
---|
933 | """Returns 1 if data is ESC/P2, else 0.""" |
---|
934 | if sdata.startswith("\033@") or \ |
---|
935 | sdata.startswith("\033*") or \ |
---|
936 | sdata.startswith("\n\033@") or \ |
---|
937 | sdata.startswith("\0\0\0\033\1@EJL") : # ESC/P Raster ??? Seen on Stylus Photo 1284 |
---|
938 | if self.debug : |
---|
939 | sys.stderr.write("%s is an ESC/P2 file\n" % str(self.filename)) |
---|
940 | return 1 |
---|
941 | else : |
---|
942 | return 0 |
---|
943 | |
---|
944 | def detectPDLHandler(self) : |
---|
945 | """Tries to autodetect the document format. |
---|
946 | |
---|
947 | Returns the correct PDL handler class or None if format is unknown |
---|
948 | """ |
---|
949 | # Try to detect file type by reading first block of datas |
---|
950 | self.infile.seek(0) |
---|
951 | firstblock = self.infile.read(4 * KILOBYTE) |
---|
952 | try : |
---|
953 | self.infile.seek(-LASTBLOCKSIZE, 2) |
---|
954 | lastblock = self.infile.read(LASTBLOCKSIZE) |
---|
955 | except IOError : |
---|
956 | lastblock = "" |
---|
957 | |
---|
958 | self.infile.seek(0) |
---|
959 | if self.isPostScript(firstblock, lastblock) : |
---|
960 | return PostScriptAnalyzer |
---|
961 | elif self.isPCLXL(firstblock, lastblock) : |
---|
962 | return PCLXLAnalyzer |
---|
963 | elif self.isPDF(firstblock, lastblock) : |
---|
964 | return PDFAnalyzer |
---|
965 | elif self.isPCL(firstblock, lastblock) : |
---|
966 | return PCLAnalyzer |
---|
967 | elif self.isESCP2(firstblock, lastblock) : |
---|
968 | return ESCP2Analyzer |
---|
969 | else : |
---|
970 | raise PDLAnalyzerError, "Analysis of first data block failed." |
---|
971 | |
---|
972 | def main() : |
---|
973 | """Entry point for PDL Analyzer.""" |
---|
974 | if (len(sys.argv) < 2) or ((not sys.stdin.isatty()) and ("-" not in sys.argv[1:])) : |
---|
975 | sys.argv.append("-") |
---|
976 | |
---|
977 | if ("-h" in sys.argv[1:]) or ("--help" in sys.argv[1:]) : |
---|
978 | print "usage : pkpgcounter file1 file2 ... fileN" |
---|
979 | elif ("-v" in sys.argv[1:]) or ("--version" in sys.argv[1:]) : |
---|
980 | print "%s" % __version__ |
---|
981 | else : |
---|
982 | totalsize = 0 |
---|
983 | debug = 0 |
---|
984 | minindex = 1 |
---|
985 | if sys.argv[1] == "--debug" : |
---|
986 | minindex = 2 |
---|
987 | debug = 1 |
---|
988 | for arg in sys.argv[minindex:] : |
---|
989 | try : |
---|
990 | parser = PDLAnalyzer(arg, debug) |
---|
991 | totalsize += parser.getJobSize() |
---|
992 | except PDLAnalyzerError, msg : |
---|
993 | sys.stderr.write("ERROR: %s\n" % msg) |
---|
994 | sys.stderr.flush() |
---|
995 | print "%s" % totalsize |
---|
996 | |
---|
997 | if __name__ == "__main__" : |
---|
998 | main() |
---|