Removed obsolete code
diff --git a/rsa/transform.py b/rsa/transform.py
index f2c9a65..2778729 100644
--- a/rsa/transform.py
+++ b/rsa/transform.py
@@ -16,7 +16,7 @@
'''Data transformation functions.
-From bytes to a number, number to bytes, base64-like-encoding, etc.
+From bytes to a number, number to bytes, etc.
'''
import types
@@ -97,131 +97,6 @@
return padding + ''.join(bytes)
-def block_op(block_provider, block_size, operation):
- r'''Generator, applies the operation on each block and yields the result
-
- Each block is converted to a number, the given operation is applied and then
- the resulting number is converted back to a block of data. The resulting
- block is yielded.
-
- @param block_provider: an iterable that iterates over the data blocks.
- @param block_size: the used block size
- @param operation: a function that accepts an integer and returns an integer
-
- >>> blocks = ['\x00\x01\x02', '\x03\x04\x05']
- >>> list(block_op(blocks, 3, lambda x: (x + 6)))
- ['\x00\x01\x08', '\x03\x04\x0b']
-
- '''
-
- for block in block_provider:
- number = bytes2int(block)
- after_op = operation(number)
- yield int2bytes(after_op, block_size)
-
-
-def to64(number):
- """Converts a number in the range of 0 to 63 into base 64 digit
- character in the range of '0'-'9', 'A'-'Z', 'a'-'z','-','_'.
-
- >>> to64(10)
- 'A'
-
- """
-
- if not (type(number) is types.LongType or type(number) is types.IntType):
- raise TypeError("You must pass a long or an int")
-
- if 0 <= number <= 9: #00-09 translates to '0' - '9'
- return chr(number + 48)
-
- if 10 <= number <= 35:
- return chr(number + 55) #10-35 translates to 'A' - 'Z'
-
- if 36 <= number <= 61:
- return chr(number + 61) #36-61 translates to 'a' - 'z'
-
- if number == 62: # 62 translates to '-' (minus)
- return chr(45)
-
- if number == 63: # 63 translates to '_' (underscore)
- return chr(95)
-
- raise ValueError(u'Invalid Base64 value: %i' % number)
-
-
-def from64(number):
- """Converts an ordinal character value in the range of
- 0-9,A-Z,a-z,-,_ to a number in the range of 0-63.
-
- >>> from64(49)
- 1
-
- """
-
- if not (type(number) is types.LongType or type(number) is types.IntType):
- raise TypeError("You must pass a long or an int")
-
- if 48 <= number <= 57: #ord('0') - ord('9') translates to 0-9
- return(number - 48)
-
- if 65 <= number <= 90: #ord('A') - ord('Z') translates to 10-35
- return(number - 55)
-
- if 97 <= number <= 122: #ord('a') - ord('z') translates to 36-61
- return(number - 61)
-
- if number == 45: #ord('-') translates to 62
- return(62)
-
- if number == 95: #ord('_') translates to 63
- return(63)
-
- raise ValueError(u'Invalid Base64 value: %i' % number)
-
-
-def int2str64(number):
- """Converts a number to a string of base64 encoded characters in
- the range of '0'-'9','A'-'Z,'a'-'z','-','_'.
-
- >>> int2str64(123456789)
- '7MyqL'
-
- """
-
- if not (type(number) is types.LongType or type(number) is types.IntType):
- raise TypeError("You must pass a long or an int")
-
- string = ""
-
- while number > 0:
- string = "%s%s" % (to64(number & 0x3F), string)
- number //= 64
-
- return string
-
-
-def str642int(string):
- """Converts a base64 encoded string into an integer.
- The chars of this string in in the range '0'-'9','A'-'Z','a'-'z','-','_'
-
- >>> str642int('7MyqL')
- 123456789
-
- """
-
- if not (type(string) is types.ListType or type(string) is types.StringType):
- raise TypeError("You must pass a string or a list")
-
- integer = 0
- for byte in string:
- integer *= 64
- if type(byte) is types.StringType: byte = ord(byte)
- integer += from64(byte)
-
- return integer
-
-
if __name__ == '__main__':
import doctest
doctest.testmod()