Changeset 219 for pkpgcounter/trunk/pdlanalyzer/tiff.py

Timestamp:

07/02/05 11:43:02 (19 years ago)

Author:

jerome

Message:

Documented where the file format is documented

Files:

• pkpgcounter/trunk/pdlanalyzer/tiff.py (modified) (2 diffs)

pkpgcounter/trunk/pdlanalyzer/tiff.py

@@ -33 +33 @@
     def getJobSize(self) :
         """Counts pages in a TIFF document.
+        
+           Algorithm by Jerome Alet.
+           
+           The documentation used for this was :
+           
+           http://www.ee.cooper.edu/courses/course_pages/past_courses/EE458/TIFF/
         """
         infileno = self.infile.fileno()
@@ -47 +53 @@
         pos = 4    
         try :    
-            nextifdoffset = unpack(integerbyteorder, minfile[pos:pos+4])[0]
+            nextifdoffset = unpack(integerbyteorder, minfile[pos : pos + 4])[0]
             while nextifdoffset :
-                direntrycount = unpack(shortbyteorder, minfile[nextifdoffset:nextifdoffset+2])[0]
+                direntrycount = unpack(shortbyteorder, minfile[nextifdoffset : nextifdoffset + 2])[0]
                 pos = nextifdoffset + 2 + (direntrycount * 12)
-                nextifdoffset = unpack(integerbyteorder, minfile[pos:pos+4])[0]
+                nextifdoffset = unpack(integerbyteorder, minfile[pos : pos + 4])[0]
                 pagecount += 1
         except IndexError :