pureascii detection issue

[GoogleCodeExporter]

What steps will reproduce the problem?
1. create a text file with just the character "3"
2. save it and run detection.
3. notice that it gives detection failed

What is the expected output? What do you see instead?
expected it to report the file as ascii(happens on any file that had the 
number 3 in it)

What version of the product are you using? On what operating system?
last updated version on windows xp

Please provide any additional information below.

noticed that the code is looking for EscAscii characters and it is looking 
for 0x33 instead of 0x1b. 0x33 is the number 3 and not an escape character.
not sure if there is such an issue anywhere else in the code

Original issue reported on code.google.com by rbhatt%[email protected] on 2 Dec 2009 at 5:29