Changeset 418 for pkpgcounter/trunk/pkpgpdls/plain.py

Timestamp:

09/15/06 11:19:37 (18 years ago)

Author:

jerome

Message:

Added plain text parser with support for both page counting and ink coverage.

Files:

• pkpgcounter/trunk/pkpgpdls/plain.py (modified) (2 diffs)

pkpgcounter/trunk/pkpgpdls/plain.py

@@ -26 +26 @@
 import sys
 import os
-import mmap
 
 import pdlparser
@@ -34 +33 @@
 class Parser(pdlparser.PDLParser) :
     """A parser for plain text documents."""
+    enscript = 'enscript --quiet --portrait --no-header --columns 1 --output - | gs -sDEVICE=tiff24nc -dPARANOIDSAFER -dNOPAUSE -dBATCH -dQUIET -r%(dpi)i -sOutputFile="%(fname)s" -'
+    a2ps = 'a2ps --borders 0 --quiet --portrait --no-header --columns 1 --output - | gs -sDEVICE=tiff24nc -dPARANOIDSAFER -dNOPAUSE -dBATCH -dQUIET -r%(dpi)i -sOutputFile="%(fname)s" -'
+    def __init__(self, infile, debug=0, firstblock=None, lastblock=None) :
+        """Initialize the plain text parser."""
+        pdlparser.PDLParser.__init__(self, infile, debug, firstblock, lastblock)
+        
+        # Tries to detect is a plain text to PostScript command line tool is available
+        # and use the first one we find.
+        paths = os.environ.get("PATH", "/usr/local/bin:/usr/bin:/bin").split(os.pathsep)
+        for cmd in ("enscript", "a2ps") :
+            for path in paths :
+                if os.path.exists(os.path.join(path, cmd)) :
+                    self.totiffcommand = getattr(self, cmd)
+                    return
+        
     def isValid(self) :    
         """Returns True if data is plain text, else False.