--- a/python/utils.py	Thu Sep 23 17:12:09 2010 -0400
+++ b/python/utils.py	Thu Sep 23 17:24:31 2010 -0400
@@ -10,6 +10,8 @@
 
 commentChar = '#'
 
+delimiterChar = '%';
+
 #########################
 # simple statistics
 #########################
@@ -146,13 +148,22 @@
             exit()
         return None
 
-def readline(f):
+def readline(f, commentCharacter = commentChar):
     '''Modified readline function to skip comments.'''
     s = f.readline()
-    while (len(s) > 0) and s.startswith(commentChar):
+    while (len(s) > 0) and s.startswith(commentCharacter):
         s = f.readline()
     return s.strip()
 
+def getLines(f, delimiterCharacter = delimiterChar):
+    '''Gets a complete entry (all the lines) in between delimiterChar.'''
+    dataStrings = []
+    s = readline(f)
+    while (len(s) > 0) and (not s.startswith(delimiterCharacter)):
+        dataStrings += [s.strip()]
+        s = readline(f)
+    return dataStrings
+
 def removeExtension(filename, delimiter = '.'):
     '''Returns the filename minus the extension (all characters after last .)'''
     i = filename.rfind(delimiter)
@@ -182,13 +193,6 @@
     if (os.path.exists(filename)):
         os.remove(filename)
 
-def invertHomography(homography):
-    'Returns an inverted homography'
-    from numpy.linalg.linalg import inv
-    invH = inv(homography)
-    invH /= invH[2,2]
-    return invH
-
 def plotPolygon(poly, options = ''):
     from numpy.core.multiarray import array
     from matplotlib.pyplot import plot