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pitroupitrou
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Issue #14874: Restore charmap decoding speed to pre-PEP 393 levels.
Patch by Serhiy Storchaka.
1 parent c62bd13 commit aaefac7

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11 files changed

+1136
-444
lines changed

11 files changed

+1136
-444
lines changed

‎Lib/codecs.py

+1-4
Original file line numberDiff line numberDiff line change
@@ -1042,10 +1042,7 @@ def make_identity_dict(rng):
10421042
mapped to themselves.
10431043
10441044
"""
1045-
res = {}
1046-
for i in rng:
1047-
res[i]=i
1048-
return res
1045+
return {i:i for i in rng}
10491046

10501047
def make_encoding_map(decoding_map):
10511048

‎Lib/encodings/cp037.py

+1
Original file line numberDiff line numberDiff line change
@@ -301,6 +301,7 @@ def getregentry():
301301
'\xd9' # 0xFD -> LATIN CAPITAL LETTER U WITH GRAVE
302302
'\xda' # 0xFE -> LATIN CAPITAL LETTER U WITH ACUTE
303303
'\x9f' # 0xFF -> CONTROL
304+
'\ufffe' ## Widen to UCS2 for optimization
304305
)
305306

306307
### Encoding table

‎Lib/encodings/cp500.py

+1
Original file line numberDiff line numberDiff line change
@@ -301,6 +301,7 @@ def getregentry():
301301
'\xd9' # 0xFD -> LATIN CAPITAL LETTER U WITH GRAVE
302302
'\xda' # 0xFE -> LATIN CAPITAL LETTER U WITH ACUTE
303303
'\x9f' # 0xFF -> CONTROL
304+
'\ufffe' ## Widen to UCS2 for optimization
304305
)
305306

306307
### Encoding table

‎Lib/encodings/hp_roman8.py

+269-108
Large diffs are not rendered by default.

‎Lib/encodings/iso8859_1.py

+1
Original file line numberDiff line numberDiff line change
@@ -301,6 +301,7 @@ def getregentry():
301301
'\xfd' # 0xFD -> LATIN SMALL LETTER Y WITH ACUTE
302302
'\xfe' # 0xFE -> LATIN SMALL LETTER THORN (Icelandic)
303303
'\xff' # 0xFF -> LATIN SMALL LETTER Y WITH DIAERESIS
304+
'\ufffe' ## Widen to UCS2 for optimization
304305
)
305306

306307
### Encoding table

‎Lib/encodings/mac_latin2.py

+269-140
Large diffs are not rendered by default.

‎Lib/encodings/palmos.py

+269-43
Original file line numberDiff line numberDiff line change
@@ -10,18 +10,18 @@
1010

1111
class Codec(codecs.Codec):
1212
def encode(self,input,errors='strict'):
13-
return codecs.charmap_encode(input,errors,encoding_map)
13+
return codecs.charmap_encode(input,errors,encoding_table)
1414

1515
def decode(self,input,errors='strict'):
16-
return codecs.charmap_decode(input,errors,decoding_map)
16+
return codecs.charmap_decode(input,errors,decoding_table)
1717

1818
class IncrementalEncoder(codecs.IncrementalEncoder):
1919
def encode(self, input, final=False):
20-
return codecs.charmap_encode(input,self.errors,encoding_map)[0]
20+
return codecs.charmap_encode(input,self.errors,encoding_table)[0]
2121

2222
class IncrementalDecoder(codecs.IncrementalDecoder):
2323
def decode(self, input, final=False):
24-
return codecs.charmap_decode(input,self.errors,decoding_map)[0]
24+
return codecs.charmap_decode(input,self.errors,decoding_table)[0]
2525

2626
class StreamWriter(Codec,codecs.StreamWriter):
2727
pass
@@ -42,42 +42,268 @@ def getregentry():
4242
streamwriter=StreamWriter,
4343
)
4444

45-
### Decoding Map
46-
47-
decoding_map = codecs.make_identity_dict(range(256))
48-
49-
# The PalmOS character set is mostly iso-8859-1 with some differences.
50-
decoding_map.update({
51-
0x0080: 0x20ac, # EURO SIGN
52-
0x0082: 0x201a, # SINGLE LOW-9 QUOTATION MARK
53-
0x0083: 0x0192, # LATIN SMALL LETTER F WITH HOOK
54-
0x0084: 0x201e, # DOUBLE LOW-9 QUOTATION MARK
55-
0x0085: 0x2026, # HORIZONTAL ELLIPSIS
56-
0x0086: 0x2020, # DAGGER
57-
0x0087: 0x2021, # DOUBLE DAGGER
58-
0x0088: 0x02c6, # MODIFIER LETTER CIRCUMFLEX ACCENT
59-
0x0089: 0x2030, # PER MILLE SIGN
60-
0x008a: 0x0160, # LATIN CAPITAL LETTER S WITH CARON
61-
0x008b: 0x2039, # SINGLE LEFT-POINTING ANGLE QUOTATION MARK
62-
0x008c: 0x0152, # LATIN CAPITAL LIGATURE OE
63-
0x008d: 0x2666, # BLACK DIAMOND SUIT
64-
0x008e: 0x2663, # BLACK CLUB SUIT
65-
0x008f: 0x2665, # BLACK HEART SUIT
66-
0x0090: 0x2660, # BLACK SPADE SUIT
67-
0x0091: 0x2018, # LEFT SINGLE QUOTATION MARK
68-
0x0092: 0x2019, # RIGHT SINGLE QUOTATION MARK
69-
0x0093: 0x201c, # LEFT DOUBLE QUOTATION MARK
70-
0x0094: 0x201d, # RIGHT DOUBLE QUOTATION MARK
71-
0x0095: 0x2022, # BULLET
72-
0x0096: 0x2013, # EN DASH
73-
0x0097: 0x2014, # EM DASH
74-
0x0098: 0x02dc, # SMALL TILDE
75-
0x0099: 0x2122, # TRADE MARK SIGN
76-
0x009a: 0x0161, # LATIN SMALL LETTER S WITH CARON
77-
0x009c: 0x0153, # LATIN SMALL LIGATURE OE
78-
0x009f: 0x0178, # LATIN CAPITAL LETTER Y WITH DIAERESIS
79-
})
80-
81-
### Encoding Map
82-
83-
encoding_map = codecs.make_encoding_map(decoding_map)
45+
46+
### Decoding Table
47+
48+
decoding_table = (
49+
'\x00' # 0x00 -> NULL
50+
'\x01' # 0x01 -> START OF HEADING
51+
'\x02' # 0x02 -> START OF TEXT
52+
'\x03' # 0x03 -> END OF TEXT
53+
'\x04' # 0x04 -> END OF TRANSMISSION
54+
'\x05' # 0x05 -> ENQUIRY
55+
'\x06' # 0x06 -> ACKNOWLEDGE
56+
'\x07' # 0x07 -> BELL
57+
'\x08' # 0x08 -> BACKSPACE
58+
'\t' # 0x09 -> HORIZONTAL TABULATION
59+
'\n' # 0x0A -> LINE FEED
60+
'\x0b' # 0x0B -> VERTICAL TABULATION
61+
'\x0c' # 0x0C -> FORM FEED
62+
'\r' # 0x0D -> CARRIAGE RETURN
63+
'\x0e' # 0x0E -> SHIFT OUT
64+
'\x0f' # 0x0F -> SHIFT IN
65+
'\x10' # 0x10 -> DATA LINK ESCAPE
66+
'\x11' # 0x11 -> DEVICE CONTROL ONE
67+
'\x12' # 0x12 -> DEVICE CONTROL TWO
68+
'\x13' # 0x13 -> DEVICE CONTROL THREE
69+
'\x14' # 0x14 -> DEVICE CONTROL FOUR
70+
'\x15' # 0x15 -> NEGATIVE ACKNOWLEDGE
71+
'\x16' # 0x16 -> SYNCHRONOUS IDLE
72+
'\x17' # 0x17 -> END OF TRANSMISSION BLOCK
73+
'\x18' # 0x18 -> CANCEL
74+
'\x19' # 0x19 -> END OF MEDIUM
75+
'\x1a' # 0x1A -> SUBSTITUTE
76+
'\x1b' # 0x1B -> ESCAPE
77+
'\x1c' # 0x1C -> FILE SEPARATOR
78+
'\x1d' # 0x1D -> GROUP SEPARATOR
79+
'\x1e' # 0x1E -> RECORD SEPARATOR
80+
'\x1f' # 0x1F -> UNIT SEPARATOR
81+
' ' # 0x20 -> SPACE
82+
'!' # 0x21 -> EXCLAMATION MARK
83+
'"' # 0x22 -> QUOTATION MARK
84+
'#' # 0x23 -> NUMBER SIGN
85+
'$' # 0x24 -> DOLLAR SIGN
86+
'%' # 0x25 -> PERCENT SIGN
87+
'&' # 0x26 -> AMPERSAND
88+
"'" # 0x27 -> APOSTROPHE
89+
'(' # 0x28 -> LEFT PARENTHESIS
90+
')' # 0x29 -> RIGHT PARENTHESIS
91+
'*' # 0x2A -> ASTERISK
92+
'+' # 0x2B -> PLUS SIGN
93+
',' # 0x2C -> COMMA
94+
'-' # 0x2D -> HYPHEN-MINUS
95+
'.' # 0x2E -> FULL STOP
96+
'/' # 0x2F -> SOLIDUS
97+
'0' # 0x30 -> DIGIT ZERO
98+
'1' # 0x31 -> DIGIT ONE
99+
'2' # 0x32 -> DIGIT TWO
100+
'3' # 0x33 -> DIGIT THREE
101+
'4' # 0x34 -> DIGIT FOUR
102+
'5' # 0x35 -> DIGIT FIVE
103+
'6' # 0x36 -> DIGIT SIX
104+
'7' # 0x37 -> DIGIT SEVEN
105+
'8' # 0x38 -> DIGIT EIGHT
106+
'9' # 0x39 -> DIGIT NINE
107+
':' # 0x3A -> COLON
108+
';' # 0x3B -> SEMICOLON
109+
'<' # 0x3C -> LESS-THAN SIGN
110+
'=' # 0x3D -> EQUALS SIGN
111+
'>' # 0x3E -> GREATER-THAN SIGN
112+
'?' # 0x3F -> QUESTION MARK
113+
'@' # 0x40 -> COMMERCIAL AT
114+
'A' # 0x41 -> LATIN CAPITAL LETTER A
115+
'B' # 0x42 -> LATIN CAPITAL LETTER B
116+
'C' # 0x43 -> LATIN CAPITAL LETTER C
117+
'D' # 0x44 -> LATIN CAPITAL LETTER D
118+
'E' # 0x45 -> LATIN CAPITAL LETTER E
119+
'F' # 0x46 -> LATIN CAPITAL LETTER F
120+
'G' # 0x47 -> LATIN CAPITAL LETTER G
121+
'H' # 0x48 -> LATIN CAPITAL LETTER H
122+
'I' # 0x49 -> LATIN CAPITAL LETTER I
123+
'J' # 0x4A -> LATIN CAPITAL LETTER J
124+
'K' # 0x4B -> LATIN CAPITAL LETTER K
125+
'L' # 0x4C -> LATIN CAPITAL LETTER L
126+
'M' # 0x4D -> LATIN CAPITAL LETTER M
127+
'N' # 0x4E -> LATIN CAPITAL LETTER N
128+
'O' # 0x4F -> LATIN CAPITAL LETTER O
129+
'P' # 0x50 -> LATIN CAPITAL LETTER P
130+
'Q' # 0x51 -> LATIN CAPITAL LETTER Q
131+
'R' # 0x52 -> LATIN CAPITAL LETTER R
132+
'S' # 0x53 -> LATIN CAPITAL LETTER S
133+
'T' # 0x54 -> LATIN CAPITAL LETTER T
134+
'U' # 0x55 -> LATIN CAPITAL LETTER U
135+
'V' # 0x56 -> LATIN CAPITAL LETTER V
136+
'W' # 0x57 -> LATIN CAPITAL LETTER W
137+
'X' # 0x58 -> LATIN CAPITAL LETTER X
138+
'Y' # 0x59 -> LATIN CAPITAL LETTER Y
139+
'Z' # 0x5A -> LATIN CAPITAL LETTER Z
140+
'[' # 0x5B -> LEFT SQUARE BRACKET
141+
'\\' # 0x5C -> REVERSE SOLIDUS
142+
']' # 0x5D -> RIGHT SQUARE BRACKET
143+
'^' # 0x5E -> CIRCUMFLEX ACCENT
144+
'_' # 0x5F -> LOW LINE
145+
'`' # 0x60 -> GRAVE ACCENT
146+
'a' # 0x61 -> LATIN SMALL LETTER A
147+
'b' # 0x62 -> LATIN SMALL LETTER B
148+
'c' # 0x63 -> LATIN SMALL LETTER C
149+
'd' # 0x64 -> LATIN SMALL LETTER D
150+
'e' # 0x65 -> LATIN SMALL LETTER E
151+
'f' # 0x66 -> LATIN SMALL LETTER F
152+
'g' # 0x67 -> LATIN SMALL LETTER G
153+
'h' # 0x68 -> LATIN SMALL LETTER H
154+
'i' # 0x69 -> LATIN SMALL LETTER I
155+
'j' # 0x6A -> LATIN SMALL LETTER J
156+
'k' # 0x6B -> LATIN SMALL LETTER K
157+
'l' # 0x6C -> LATIN SMALL LETTER L
158+
'm' # 0x6D -> LATIN SMALL LETTER M
159+
'n' # 0x6E -> LATIN SMALL LETTER N
160+
'o' # 0x6F -> LATIN SMALL LETTER O
161+
'p' # 0x70 -> LATIN SMALL LETTER P
162+
'q' # 0x71 -> LATIN SMALL LETTER Q
163+
'r' # 0x72 -> LATIN SMALL LETTER R
164+
's' # 0x73 -> LATIN SMALL LETTER S
165+
't' # 0x74 -> LATIN SMALL LETTER T
166+
'u' # 0x75 -> LATIN SMALL LETTER U
167+
'v' # 0x76 -> LATIN SMALL LETTER V
168+
'w' # 0x77 -> LATIN SMALL LETTER W
169+
'x' # 0x78 -> LATIN SMALL LETTER X
170+
'y' # 0x79 -> LATIN SMALL LETTER Y
171+
'z' # 0x7A -> LATIN SMALL LETTER Z
172+
'{' # 0x7B -> LEFT CURLY BRACKET
173+
'|' # 0x7C -> VERTICAL LINE
174+
'}' # 0x7D -> RIGHT CURLY BRACKET
175+
'~' # 0x7E -> TILDE
176+
'\x7f' # 0x7F -> DELETE
177+
'\u20ac' # 0x80 -> EURO SIGN
178+
'\x81' # 0x81 -> <control>
179+
'\u201a' # 0x82 -> SINGLE LOW-9 QUOTATION MARK
180+
'\u0192' # 0x83 -> LATIN SMALL LETTER F WITH HOOK
181+
'\u201e' # 0x84 -> DOUBLE LOW-9 QUOTATION MARK
182+
'\u2026' # 0x85 -> HORIZONTAL ELLIPSIS
183+
'\u2020' # 0x86 -> DAGGER
184+
'\u2021' # 0x87 -> DOUBLE DAGGER
185+
'\u02c6' # 0x88 -> MODIFIER LETTER CIRCUMFLEX ACCENT
186+
'\u2030' # 0x89 -> PER MILLE SIGN
187+
'\u0160' # 0x8A -> LATIN CAPITAL LETTER S WITH CARON
188+
'\u2039' # 0x8B -> SINGLE LEFT-POINTING ANGLE QUOTATION MARK
189+
'\u0152' # 0x8C -> LATIN CAPITAL LIGATURE OE
190+
'\u2666' # 0x8D -> BLACK DIAMOND SUIT
191+
'\u2663' # 0x8E -> BLACK CLUB SUIT
192+
'\u2665' # 0x8F -> BLACK HEART SUIT
193+
'\u2660' # 0x90 -> BLACK SPADE SUIT
194+
'\u2018' # 0x91 -> LEFT SINGLE QUOTATION MARK
195+
'\u2019' # 0x92 -> RIGHT SINGLE QUOTATION MARK
196+
'\u201c' # 0x93 -> LEFT DOUBLE QUOTATION MARK
197+
'\u201d' # 0x94 -> RIGHT DOUBLE QUOTATION MARK
198+
'\u2022' # 0x95 -> BULLET
199+
'\u2013' # 0x96 -> EN DASH
200+
'\u2014' # 0x97 -> EM DASH
201+
'\u02dc' # 0x98 -> SMALL TILDE
202+
'\u2122' # 0x99 -> TRADE MARK SIGN
203+
'\u0161' # 0x9A -> LATIN SMALL LETTER S WITH CARON
204+
'\x9b' # 0x9B -> <control>
205+
'\u0153' # 0x9C -> LATIN SMALL LIGATURE OE
206+
'\x9d' # 0x9D -> <control>
207+
'\x9e' # 0x9E -> <control>
208+
'\u0178' # 0x9F -> LATIN CAPITAL LETTER Y WITH DIAERESIS
209+
'\xa0' # 0xA0 -> NO-BREAK SPACE
210+
'\xa1' # 0xA1 -> INVERTED EXCLAMATION MARK
211+
'\xa2' # 0xA2 -> CENT SIGN
212+
'\xa3' # 0xA3 -> POUND SIGN
213+
'\xa4' # 0xA4 -> CURRENCY SIGN
214+
'\xa5' # 0xA5 -> YEN SIGN
215+
'\xa6' # 0xA6 -> BROKEN BAR
216+
'\xa7' # 0xA7 -> SECTION SIGN
217+
'\xa8' # 0xA8 -> DIAERESIS
218+
'\xa9' # 0xA9 -> COPYRIGHT SIGN
219+
'\xaa' # 0xAA -> FEMININE ORDINAL INDICATOR
220+
'\xab' # 0xAB -> LEFT-POINTING DOUBLE ANGLE QUOTATION MARK
221+
'\xac' # 0xAC -> NOT SIGN
222+
'\xad' # 0xAD -> SOFT HYPHEN
223+
'\xae' # 0xAE -> REGISTERED SIGN
224+
'\xaf' # 0xAF -> MACRON
225+
'\xb0' # 0xB0 -> DEGREE SIGN
226+
'\xb1' # 0xB1 -> PLUS-MINUS SIGN
227+
'\xb2' # 0xB2 -> SUPERSCRIPT TWO
228+
'\xb3' # 0xB3 -> SUPERSCRIPT THREE
229+
'\xb4' # 0xB4 -> ACUTE ACCENT
230+
'\xb5' # 0xB5 -> MICRO SIGN
231+
'\xb6' # 0xB6 -> PILCROW SIGN
232+
'\xb7' # 0xB7 -> MIDDLE DOT
233+
'\xb8' # 0xB8 -> CEDILLA
234+
'\xb9' # 0xB9 -> SUPERSCRIPT ONE
235+
'\xba' # 0xBA -> MASCULINE ORDINAL INDICATOR
236+
'\xbb' # 0xBB -> RIGHT-POINTING DOUBLE ANGLE QUOTATION MARK
237+
'\xbc' # 0xBC -> VULGAR FRACTION ONE QUARTER
238+
'\xbd' # 0xBD -> VULGAR FRACTION ONE HALF
239+
'\xbe' # 0xBE -> VULGAR FRACTION THREE QUARTERS
240+
'\xbf' # 0xBF -> INVERTED QUESTION MARK
241+
'\xc0' # 0xC0 -> LATIN CAPITAL LETTER A WITH GRAVE
242+
'\xc1' # 0xC1 -> LATIN CAPITAL LETTER A WITH ACUTE
243+
'\xc2' # 0xC2 -> LATIN CAPITAL LETTER A WITH CIRCUMFLEX
244+
'\xc3' # 0xC3 -> LATIN CAPITAL LETTER A WITH TILDE
245+
'\xc4' # 0xC4 -> LATIN CAPITAL LETTER A WITH DIAERESIS
246+
'\xc5' # 0xC5 -> LATIN CAPITAL LETTER A WITH RING ABOVE
247+
'\xc6' # 0xC6 -> LATIN CAPITAL LETTER AE
248+
'\xc7' # 0xC7 -> LATIN CAPITAL LETTER C WITH CEDILLA
249+
'\xc8' # 0xC8 -> LATIN CAPITAL LETTER E WITH GRAVE
250+
'\xc9' # 0xC9 -> LATIN CAPITAL LETTER E WITH ACUTE
251+
'\xca' # 0xCA -> LATIN CAPITAL LETTER E WITH CIRCUMFLEX
252+
'\xcb' # 0xCB -> LATIN CAPITAL LETTER E WITH DIAERESIS
253+
'\xcc' # 0xCC -> LATIN CAPITAL LETTER I WITH GRAVE
254+
'\xcd' # 0xCD -> LATIN CAPITAL LETTER I WITH ACUTE
255+
'\xce' # 0xCE -> LATIN CAPITAL LETTER I WITH CIRCUMFLEX
256+
'\xcf' # 0xCF -> LATIN CAPITAL LETTER I WITH DIAERESIS
257+
'\xd0' # 0xD0 -> LATIN CAPITAL LETTER ETH (Icelandic)
258+
'\xd1' # 0xD1 -> LATIN CAPITAL LETTER N WITH TILDE
259+
'\xd2' # 0xD2 -> LATIN CAPITAL LETTER O WITH GRAVE
260+
'\xd3' # 0xD3 -> LATIN CAPITAL LETTER O WITH ACUTE
261+
'\xd4' # 0xD4 -> LATIN CAPITAL LETTER O WITH CIRCUMFLEX
262+
'\xd5' # 0xD5 -> LATIN CAPITAL LETTER O WITH TILDE
263+
'\xd6' # 0xD6 -> LATIN CAPITAL LETTER O WITH DIAERESIS
264+
'\xd7' # 0xD7 -> MULTIPLICATION SIGN
265+
'\xd8' # 0xD8 -> LATIN CAPITAL LETTER O WITH STROKE
266+
'\xd9' # 0xD9 -> LATIN CAPITAL LETTER U WITH GRAVE
267+
'\xda' # 0xDA -> LATIN CAPITAL LETTER U WITH ACUTE
268+
'\xdb' # 0xDB -> LATIN CAPITAL LETTER U WITH CIRCUMFLEX
269+
'\xdc' # 0xDC -> LATIN CAPITAL LETTER U WITH DIAERESIS
270+
'\xdd' # 0xDD -> LATIN CAPITAL LETTER Y WITH ACUTE
271+
'\xde' # 0xDE -> LATIN CAPITAL LETTER THORN (Icelandic)
272+
'\xdf' # 0xDF -> LATIN SMALL LETTER SHARP S (German)
273+
'\xe0' # 0xE0 -> LATIN SMALL LETTER A WITH GRAVE
274+
'\xe1' # 0xE1 -> LATIN SMALL LETTER A WITH ACUTE
275+
'\xe2' # 0xE2 -> LATIN SMALL LETTER A WITH CIRCUMFLEX
276+
'\xe3' # 0xE3 -> LATIN SMALL LETTER A WITH TILDE
277+
'\xe4' # 0xE4 -> LATIN SMALL LETTER A WITH DIAERESIS
278+
'\xe5' # 0xE5 -> LATIN SMALL LETTER A WITH RING ABOVE
279+
'\xe6' # 0xE6 -> LATIN SMALL LETTER AE
280+
'\xe7' # 0xE7 -> LATIN SMALL LETTER C WITH CEDILLA
281+
'\xe8' # 0xE8 -> LATIN SMALL LETTER E WITH GRAVE
282+
'\xe9' # 0xE9 -> LATIN SMALL LETTER E WITH ACUTE
283+
'\xea' # 0xEA -> LATIN SMALL LETTER E WITH CIRCUMFLEX
284+
'\xeb' # 0xEB -> LATIN SMALL LETTER E WITH DIAERESIS
285+
'\xec' # 0xEC -> LATIN SMALL LETTER I WITH GRAVE
286+
'\xed' # 0xED -> LATIN SMALL LETTER I WITH ACUTE
287+
'\xee' # 0xEE -> LATIN SMALL LETTER I WITH CIRCUMFLEX
288+
'\xef' # 0xEF -> LATIN SMALL LETTER I WITH DIAERESIS
289+
'\xf0' # 0xF0 -> LATIN SMALL LETTER ETH (Icelandic)
290+
'\xf1' # 0xF1 -> LATIN SMALL LETTER N WITH TILDE
291+
'\xf2' # 0xF2 -> LATIN SMALL LETTER O WITH GRAVE
292+
'\xf3' # 0xF3 -> LATIN SMALL LETTER O WITH ACUTE
293+
'\xf4' # 0xF4 -> LATIN SMALL LETTER O WITH CIRCUMFLEX
294+
'\xf5' # 0xF5 -> LATIN SMALL LETTER O WITH TILDE
295+
'\xf6' # 0xF6 -> LATIN SMALL LETTER O WITH DIAERESIS
296+
'\xf7' # 0xF7 -> DIVISION SIGN
297+
'\xf8' # 0xF8 -> LATIN SMALL LETTER O WITH STROKE
298+
'\xf9' # 0xF9 -> LATIN SMALL LETTER U WITH GRAVE
299+
'\xfa' # 0xFA -> LATIN SMALL LETTER U WITH ACUTE
300+
'\xfb' # 0xFB -> LATIN SMALL LETTER U WITH CIRCUMFLEX
301+
'\xfc' # 0xFC -> LATIN SMALL LETTER U WITH DIAERESIS
302+
'\xfd' # 0xFD -> LATIN SMALL LETTER Y WITH ACUTE
303+
'\xfe' # 0xFE -> LATIN SMALL LETTER THORN (Icelandic)
304+
'\xff' # 0xFF -> LATIN SMALL LETTER Y WITH DIAERESIS
305+
)
306+
307+
### Encoding table
308+
encoding_table=codecs.charmap_build(decoding_table)
309+

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