[pypy-svn] r14140 - pypy/dist/pypy/lib
jacob at codespeak.net
jacob at codespeak.net
Sun Jul 3 15:35:18 CEST 2005
Author: jacob
Date: Sun Jul 3 15:35:17 2005
New Revision: 14140
Modified:
pypy/dist/pypy/lib/inprogress_binascii.py
Log:
Complete implementation of binascii, which passes the CPython tests.
Modified: pypy/dist/pypy/lib/inprogress_binascii.py
==============================================================================
--- pypy/dist/pypy/lib/inprogress_binascii.py (original)
+++ pypy/dist/pypy/lib/inprogress_binascii.py Sun Jul 3 15:35:17 2005
@@ -297,3 +297,281 @@
for c in s:
i = i * 0x10 + hex_numbers.index(c)
return i
+
+hqx_encoding = '!"#$%&\'()*+,-012345689 at ABCDEFGHIJKLMNPQRSTUVXYZ[`abcdefhijklmpqr'
+# Make a fast lookup dictionary for decoding hqx
+hqx_decoding = {}
+for i, c in enumerate(hqx_encoding):
+ hqx_decoding[c] = i
+
+def unpadded_quadruples(s):
+ while s:
+ yield s[:4]
+ s = s[4:]
+
+def a2b_hqx(s):
+ decoded = []
+ for c in s:
+ decoded.append(hqx_decoding[c])
+ gen = unpadded_quadruples(decoded)
+ result = []
+ for snippet in gen:
+ length = len(snippet)
+ if length == 4:
+ result.append(chr((snippet[0] << 2) | (snippet[1] >> 6)))
+ result.append(chr((snippet[1] << 4) | (snippet[2] >> 4)))
+ result.append(chr((snippet[2] << 6) | (snippet[3])))
+ elif length == 3:
+ result.append(chr((snippet[0] << 2) | (snippet[1] >> 6)))
+ result.append(chr((snippet[1] << 4) | (snippet[2] >> 4)))
+ elif length == 2:
+ result.append(chr((snippet[0] << 2) | (snippet[1] >> 6)))
+ else:
+ raise TypeError('Wrong number of characters.')
+ return ''.join(result)
+
+def unpadded_triples(s):
+ while s:
+ yield [ord(c) for c in s[:3]]
+ s = s[3:]
+
+def b2a_hqx(s):
+ result =[]
+ gen = unpadded_triples(s)
+ for snippet in gen:
+ length = len(snippet)
+ if length == 3:
+ result.append(
+ hqx_encoding[(snippet[0] & 0xfc) >> 2])
+ result.append(hqx_encoding[
+ ((snippet[0] & 0x03) << 4) | ((snippet[1] & 0xf0) >> 4)])
+ result.append(hqx_encoding[
+ (snippet[1] & 0x0f) << 2 | ((snippet[2] & 0xc0) >> 6)])
+ result.append(hqx_encoding[snippet[2] & 0x3f])
+ elif length == 2:
+ result.append(
+ hqx_encoding[(snippet[0] & 0xfc) >> 2])
+ result.append(hqx_encoding[
+ ((snippet[0] & 0x03) << 4) | ((snippet[1] & 0xf0) >> 4)])
+ result.append(hqx_encoding[
+ (snippet[1] & 0x0f) << 2])
+ elif length == 1:
+ result.append(
+ hqx_encoding[(snippet[0] & 0xfc) >> 2])
+ result.append(hqx_encoding[
+ ((snippet[0] & 0x03) << 4)])
+ return ''.join(result)
+
+crctab_hqx = [
+ 0x0000, 0x1021, 0x2042, 0x3063, 0x4084, 0x50a5, 0x60c6, 0x70e7,
+ 0x8108, 0x9129, 0xa14a, 0xb16b, 0xc18c, 0xd1ad, 0xe1ce, 0xf1ef,
+ 0x1231, 0x0210, 0x3273, 0x2252, 0x52b5, 0x4294, 0x72f7, 0x62d6,
+ 0x9339, 0x8318, 0xb37b, 0xa35a, 0xd3bd, 0xc39c, 0xf3ff, 0xe3de,
+ 0x2462, 0x3443, 0x0420, 0x1401, 0x64e6, 0x74c7, 0x44a4, 0x5485,
+ 0xa56a, 0xb54b, 0x8528, 0x9509, 0xe5ee, 0xf5cf, 0xc5ac, 0xd58d,
+ 0x3653, 0x2672, 0x1611, 0x0630, 0x76d7, 0x66f6, 0x5695, 0x46b4,
+ 0xb75b, 0xa77a, 0x9719, 0x8738, 0xf7df, 0xe7fe, 0xd79d, 0xc7bc,
+ 0x48c4, 0x58e5, 0x6886, 0x78a7, 0x0840, 0x1861, 0x2802, 0x3823,
+ 0xc9cc, 0xd9ed, 0xe98e, 0xf9af, 0x8948, 0x9969, 0xa90a, 0xb92b,
+ 0x5af5, 0x4ad4, 0x7ab7, 0x6a96, 0x1a71, 0x0a50, 0x3a33, 0x2a12,
+ 0xdbfd, 0xcbdc, 0xfbbf, 0xeb9e, 0x9b79, 0x8b58, 0xbb3b, 0xab1a,
+ 0x6ca6, 0x7c87, 0x4ce4, 0x5cc5, 0x2c22, 0x3c03, 0x0c60, 0x1c41,
+ 0xedae, 0xfd8f, 0xcdec, 0xddcd, 0xad2a, 0xbd0b, 0x8d68, 0x9d49,
+ 0x7e97, 0x6eb6, 0x5ed5, 0x4ef4, 0x3e13, 0x2e32, 0x1e51, 0x0e70,
+ 0xff9f, 0xefbe, 0xdfdd, 0xcffc, 0xbf1b, 0xaf3a, 0x9f59, 0x8f78,
+ 0x9188, 0x81a9, 0xb1ca, 0xa1eb, 0xd10c, 0xc12d, 0xf14e, 0xe16f,
+ 0x1080, 0x00a1, 0x30c2, 0x20e3, 0x5004, 0x4025, 0x7046, 0x6067,
+ 0x83b9, 0x9398, 0xa3fb, 0xb3da, 0xc33d, 0xd31c, 0xe37f, 0xf35e,
+ 0x02b1, 0x1290, 0x22f3, 0x32d2, 0x4235, 0x5214, 0x6277, 0x7256,
+ 0xb5ea, 0xa5cb, 0x95a8, 0x8589, 0xf56e, 0xe54f, 0xd52c, 0xc50d,
+ 0x34e2, 0x24c3, 0x14a0, 0x0481, 0x7466, 0x6447, 0x5424, 0x4405,
+ 0xa7db, 0xb7fa, 0x8799, 0x97b8, 0xe75f, 0xf77e, 0xc71d, 0xd73c,
+ 0x26d3, 0x36f2, 0x0691, 0x16b0, 0x6657, 0x7676, 0x4615, 0x5634,
+ 0xd94c, 0xc96d, 0xf90e, 0xe92f, 0x99c8, 0x89e9, 0xb98a, 0xa9ab,
+ 0x5844, 0x4865, 0x7806, 0x6827, 0x18c0, 0x08e1, 0x3882, 0x28a3,
+ 0xcb7d, 0xdb5c, 0xeb3f, 0xfb1e, 0x8bf9, 0x9bd8, 0xabbb, 0xbb9a,
+ 0x4a75, 0x5a54, 0x6a37, 0x7a16, 0x0af1, 0x1ad0, 0x2ab3, 0x3a92,
+ 0xfd2e, 0xed0f, 0xdd6c, 0xcd4d, 0xbdaa, 0xad8b, 0x9de8, 0x8dc9,
+ 0x7c26, 0x6c07, 0x5c64, 0x4c45, 0x3ca2, 0x2c83, 0x1ce0, 0x0cc1,
+ 0xef1f, 0xff3e, 0xcf5d, 0xdf7c, 0xaf9b, 0xbfba, 0x8fd9, 0x9ff8,
+ 0x6e17, 0x7e36, 0x4e55, 0x5e74, 0x2e93, 0x3eb2, 0x0ed1, 0x1ef0,
+]
+
+def crc_hqx(s, crc):
+ for c in s:
+ crc=((crc << 8) & 0xff00) ^ crctab_hqx[((crc >> 8) & 0xff) ^ c]
+
+ return crc
+
+def rlecode_hqx(s):
+ result = []
+ prev = s[0]
+ count = 1
+ # Add a dummy character to get the loop to go one extra round.
+ # The dummy must be different from the last character of s.
+ # In the same step we remove the first character, which has
+ # already been stored in prev.
+ if s[-1] == '!':
+ s = s[1:] + '?'
+ else:
+ s = s[1:] + '!'
+
+ for c in s:
+ if c == prev and count < 255:
+ count += 1
+ else:
+ if count == 1:
+ if prev != '\x90':
+ result.append(prev)
+ else:
+ result.extend(['\x90', '\x00'])
+ elif count < 4:
+ if prev != '\x90':
+ result.extend([prev] * count)
+ else:
+ result.extend(['\x90', '\x00'] * count)
+ else:
+ if prev != '\x90':
+ result.extend([prev, '\x90', chr(count)])
+ else:
+ result.extend(['\x90', '\x00', '\x90', chr(count)])
+ count = 1
+ prev = c
+
+ return ''.join(result)
+
+def rledecode_hqx(s):
+ s = s.split('\x90')
+ result = [s[0]]
+ prev = s[0]
+ for snippet in s[1:]:
+ count = ord(snippet[0])
+ if count > 0:
+ result.append(prev[-1] * (count-1))
+ prev = snippet
+ else:
+ result. append('\x90')
+ prev = '\x90'
+ result.append(snippet[1:])
+
+ return ''.join(result)
+
+crc_32_tab = [
+ 0x00000000L, 0x77073096L, 0xee0e612cL, 0x990951baL, 0x076dc419L,
+ 0x706af48fL, 0xe963a535L, 0x9e6495a3L, 0x0edb8832L, 0x79dcb8a4L,
+ 0xe0d5e91eL, 0x97d2d988L, 0x09b64c2bL, 0x7eb17cbdL, 0xe7b82d07L,
+ 0x90bf1d91L, 0x1db71064L, 0x6ab020f2L, 0xf3b97148L, 0x84be41deL,
+ 0x1adad47dL, 0x6ddde4ebL, 0xf4d4b551L, 0x83d385c7L, 0x136c9856L,
+ 0x646ba8c0L, 0xfd62f97aL, 0x8a65c9ecL, 0x14015c4fL, 0x63066cd9L,
+ 0xfa0f3d63L, 0x8d080df5L, 0x3b6e20c8L, 0x4c69105eL, 0xd56041e4L,
+ 0xa2677172L, 0x3c03e4d1L, 0x4b04d447L, 0xd20d85fdL, 0xa50ab56bL,
+ 0x35b5a8faL, 0x42b2986cL, 0xdbbbc9d6L, 0xacbcf940L, 0x32d86ce3L,
+ 0x45df5c75L, 0xdcd60dcfL, 0xabd13d59L, 0x26d930acL, 0x51de003aL,
+ 0xc8d75180L, 0xbfd06116L, 0x21b4f4b5L, 0x56b3c423L, 0xcfba9599L,
+ 0xb8bda50fL, 0x2802b89eL, 0x5f058808L, 0xc60cd9b2L, 0xb10be924L,
+ 0x2f6f7c87L, 0x58684c11L, 0xc1611dabL, 0xb6662d3dL, 0x76dc4190L,
+ 0x01db7106L, 0x98d220bcL, 0xefd5102aL, 0x71b18589L, 0x06b6b51fL,
+ 0x9fbfe4a5L, 0xe8b8d433L, 0x7807c9a2L, 0x0f00f934L, 0x9609a88eL,
+ 0xe10e9818L, 0x7f6a0dbbL, 0x086d3d2dL, 0x91646c97L, 0xe6635c01L,
+ 0x6b6b51f4L, 0x1c6c6162L, 0x856530d8L, 0xf262004eL, 0x6c0695edL,
+ 0x1b01a57bL, 0x8208f4c1L, 0xf50fc457L, 0x65b0d9c6L, 0x12b7e950L,
+ 0x8bbeb8eaL, 0xfcb9887cL, 0x62dd1ddfL, 0x15da2d49L, 0x8cd37cf3L,
+ 0xfbd44c65L, 0x4db26158L, 0x3ab551ceL, 0xa3bc0074L, 0xd4bb30e2L,
+ 0x4adfa541L, 0x3dd895d7L, 0xa4d1c46dL, 0xd3d6f4fbL, 0x4369e96aL,
+ 0x346ed9fcL, 0xad678846L, 0xda60b8d0L, 0x44042d73L, 0x33031de5L,
+ 0xaa0a4c5fL, 0xdd0d7cc9L, 0x5005713cL, 0x270241aaL, 0xbe0b1010L,
+ 0xc90c2086L, 0x5768b525L, 0x206f85b3L, 0xb966d409L, 0xce61e49fL,
+ 0x5edef90eL, 0x29d9c998L, 0xb0d09822L, 0xc7d7a8b4L, 0x59b33d17L,
+ 0x2eb40d81L, 0xb7bd5c3bL, 0xc0ba6cadL, 0xedb88320L, 0x9abfb3b6L,
+ 0x03b6e20cL, 0x74b1d29aL, 0xead54739L, 0x9dd277afL, 0x04db2615L,
+ 0x73dc1683L, 0xe3630b12L, 0x94643b84L, 0x0d6d6a3eL, 0x7a6a5aa8L,
+ 0xe40ecf0bL, 0x9309ff9dL, 0x0a00ae27L, 0x7d079eb1L, 0xf00f9344L,
+ 0x8708a3d2L, 0x1e01f268L, 0x6906c2feL, 0xf762575dL, 0x806567cbL,
+ 0x196c3671L, 0x6e6b06e7L, 0xfed41b76L, 0x89d32be0L, 0x10da7a5aL,
+ 0x67dd4accL, 0xf9b9df6fL, 0x8ebeeff9L, 0x17b7be43L, 0x60b08ed5L,
+ 0xd6d6a3e8L, 0xa1d1937eL, 0x38d8c2c4L, 0x4fdff252L, 0xd1bb67f1L,
+ 0xa6bc5767L, 0x3fb506ddL, 0x48b2364bL, 0xd80d2bdaL, 0xaf0a1b4cL,
+ 0x36034af6L, 0x41047a60L, 0xdf60efc3L, 0xa867df55L, 0x316e8eefL,
+ 0x4669be79L, 0xcb61b38cL, 0xbc66831aL, 0x256fd2a0L, 0x5268e236L,
+ 0xcc0c7795L, 0xbb0b4703L, 0x220216b9L, 0x5505262fL, 0xc5ba3bbeL,
+ 0xb2bd0b28L, 0x2bb45a92L, 0x5cb36a04L, 0xc2d7ffa7L, 0xb5d0cf31L,
+ 0x2cd99e8bL, 0x5bdeae1dL, 0x9b64c2b0L, 0xec63f226L, 0x756aa39cL,
+ 0x026d930aL, 0x9c0906a9L, 0xeb0e363fL, 0x72076785L, 0x05005713L,
+ 0x95bf4a82L, 0xe2b87a14L, 0x7bb12baeL, 0x0cb61b38L, 0x92d28e9bL,
+ 0xe5d5be0dL, 0x7cdcefb7L, 0x0bdbdf21L, 0x86d3d2d4L, 0xf1d4e242L,
+ 0x68ddb3f8L, 0x1fda836eL, 0x81be16cdL, 0xf6b9265bL, 0x6fb077e1L,
+ 0x18b74777L, 0x88085ae6L, 0xff0f6a70L, 0x66063bcaL, 0x11010b5cL,
+ 0x8f659effL, 0xf862ae69L, 0x616bffd3L, 0x166ccf45L, 0xa00ae278L,
+ 0xd70dd2eeL, 0x4e048354L, 0x3903b3c2L, 0xa7672661L, 0xd06016f7L,
+ 0x4969474dL, 0x3e6e77dbL, 0xaed16a4aL, 0xd9d65adcL, 0x40df0b66L,
+ 0x37d83bf0L, 0xa9bcae53L, 0xdebb9ec5L, 0x47b2cf7fL, 0x30b5ffe9L,
+ 0xbdbdf21cL, 0xcabac28aL, 0x53b39330L, 0x24b4a3a6L, 0xbad03605L,
+ 0xcdd70693L, 0x54de5729L, 0x23d967bfL, 0xb3667a2eL, 0xc4614ab8L,
+ 0x5d681b02L, 0x2a6f2b94L, 0xb40bbe37L, 0xc30c8ea1L, 0x5a05df1bL,
+ 0x2d02ef8dL
+]
+
+def crc32(s, crc=0):
+ crc = ~long(crc) & 0xffffffffL
+ for c in s:
+ crc = crc_32_tab[(crc ^ long(ord(c))) & 0xffL] ^ (crc >> 8)
+ #/* Note: (crc >> 8) MUST zero fill on left
+
+ result = crc ^ 0xffffffffL
+
+ return result
+
+def b2a_hex(s):
+ result = []
+ for char in s:
+ c = (ord(char) >> 4) & 0xf
+ if c > 9:
+ c = c + ord('a') - 10
+ else:
+ c = c + ord('0')
+ result.append(chr(c))
+ c = ord(char) & 0xf
+ if c > 9:
+ c = c + ord('a') - 10
+ else:
+ c = c + ord('0')
+ result.append(chr(c))
+ return ''.join(result)
+
+hexlify = b2a_hex
+
+table_hex = [
+ -1,-1,-1,-1, -1,-1,-1,-1, -1,-1,-1,-1, -1,-1,-1,-1,
+ -1,-1,-1,-1, -1,-1,-1,-1, -1,-1,-1,-1, -1,-1,-1,-1,
+ -1,-1,-1,-1, -1,-1,-1,-1, -1,-1,-1,-1, -1,-1,-1,-1,
+ 0, 1, 2, 3, 4, 5, 6, 7, 8, 9,-1,-1, -1,-1,-1,-1,
+ -1,10,11,12, 13,14,15,-1, -1,-1,-1,-1, -1,-1,-1,-1,
+ -1,-1,-1,-1, -1,-1,-1,-1, -1,-1,-1,-1, -1,-1,-1,-1,
+ -1,10,11,12, 13,14,15,-1, -1,-1,-1,-1, -1,-1,-1,-1,
+ -1,-1,-1,-1, -1,-1,-1,-1, -1,-1,-1,-1, -1,-1,-1,-1
+]
+
+
+def a2b_hex(t):
+ result = []
+
+ def pairs_gen(s):
+ while s:
+ try:
+ a, b = s[0], s[1]
+ except IndexError:
+ if len(s):
+ raise TypeError('Odd-length string')
+ return
+ s = s[2:]
+ yield table_hex[ord(a)], table_hex[ord(b)]
+
+ pairs = pairs_gen(t)
+ for a, b in pairs:
+ if a < 0 or b < 0:
+ raise TypeError('Non-hexadecimal digit found')
+ result.append(chr((a << 4) + b))
+ return ''.join(result)
+
+
+unhexlify = a2b_hex
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