Changeset 1461 for pykota/trunk

Timestamp:

05/08/04 01:08:21 (21 years ago)

Author:

jalet

Message:

Skeleton for PCLXL aka PCL6
Added the "potential" fix for rastertoprinter's output

Files:

• pykota/trunk/bin/pkpgcounter (modified) (7 diffs)

pykota/trunk/bin/pkpgcounter

@@ -24 +24 @@
 #
 # $Log$
+# Revision 1.7  2004/05/07 23:08:21  jalet
+# Skeleton for PCLXL aka PCL6
+# Added the "potential" fix for rastertoprinter's output
+#
 # Revision 1.6  2004/05/06 21:19:27  jalet
 # Doesn't exit anymore on the first nul byte
@@ -63 +67 @@
         return 0
     
+def ispcl(data) :    
+    """Returns 1 if data is PCL, else 0."""
+    if data.startswith("\033E\033") or \
+       ((data[:128].find("\033%-12345X") != -1) and \
+         ((data.find("LANGUAGE=PCL") != -1) or \
+          (data.find("LANGUAGE = PCL") != -1) or \
+          (data.find("LANGUAGE = Pcl") != -1))) :
+        return 1
+    else :    
+        return 0
+    
+def ispclxl(data) :    
+    """Returns 1 if data is PCLXL aka PCL6, else 0."""
+    if ((data[:128].find("\033%-12345X") != -1) and \
+         (data.find(" HP-PCL XL;") != -1) and \
+         ((data.find("LANGUAGE=PCLXL") != -1) or \
+          (data.find("LANGUAGE = PCLXL") != -1))) :
+        return 1
+    else :    
+        return 0
+    
 def postscript(infile) :
-    """Count pages in a PostScript document."""
+    """Count pages in a DSC compliant PostScript document."""
     pagecount = 0
     pagenum = None
@@ -75 +100 @@
     return pagecount
     
-def ispcl(data) :    
-    """Returns 1 if data is PCL, else 0."""
-    if data.startswith("\033E\033") or \
-       ((data[:128].find("\033%-12345X") != -1) and \
-         ((data.find("LANGUAGE=PCL") != -1) or \
-          (data.find("LANGUAGE = PCL") != -1) or \
-          (data.find("LANGUAGE = Pcl") != -1))) :
-        return 1
-    else :    
-        return 0
-    
 def pcl(infile) :    
-    """Count pages in a PostScript document."""
+    """Count pages in a PCL5 document."""
     #
     # Algorithm from pclcount
@@ -118 +132 @@
                  "&l" : "X" } 
     copies = 1
-    pagecount = 0
+    pagecount = resets = 0
     tag = None
     position = 0
@@ -149 +163 @@
             position += 1
             if tagstart in "E9=YZ" : # one byte PCL tag
+                if tagstart == "E" :
+                    resets += 1
                 continue             # skip to next tag
             tag = tagstart + infile[position]
@@ -177 +193 @@
                             size += 1
                         position += size    
-    return copies * pagecount        
-
+                        
+    # if pagecount is still 0, we will return the number
+    # of resets instead of the number of form feed characters.
+    # but the number of resets is always at least 2 with a valid
+    # pcl file : one at the very start and one at the very end
+    # of the job's data. So we substract 2 from the number of
+    # resets. And since on our test data we needed to substract
+    # 1 more, we finally substract 3, and will test several
+    # PCL files with this. If resets < 2, then the file is
+    # probably not a valid PCL file, so we return 0
+    if not pagecount :
+        return copies * (resets - 3) * (resets > 2)
+    else :
+        return copies * pagecount
+
+def pclxl(infile) :     
+    """Count pages in a PCL6 aka PCLXL document."""
+    raise TypeError, "Sorry but PCL6, aka PCLXL, is not supported yet.\n"
+    
 def smartpagecounter(filename) :
     """Autodetects file format and returns number of pages."""
@@ -202 +235 @@
     if ispostscript(firstblock) :
         size = postscript(infile)
+    elif ispclxl(firstblock) :    
+        size = pclxl(infile)
     elif ispcl(firstblock) :    
         size = pcl(infile)