From a73a964e51247ed169d322c725a3a18859f109a3 Mon Sep 17 00:00:00 2001
From: Ori Bernstein <ori@eigenstate.org>
Date: Mon, 14 Jun 2021 00:00:37 +0000
Subject: python, hg: tow outside the environment.

they've served us well, and can ride off into the sunset.
---
 sys/lib/python/encodings/punycode.py | 238 -----------------------------------
 1 file changed, 238 deletions(-)
 delete mode 100644 sys/lib/python/encodings/punycode.py

(limited to 'sys/lib/python/encodings/punycode.py')

diff --git a/sys/lib/python/encodings/punycode.py b/sys/lib/python/encodings/punycode.py
deleted file mode 100644
index d97200fd3..000000000
--- a/sys/lib/python/encodings/punycode.py
+++ /dev/null
@@ -1,238 +0,0 @@
-# -*- coding: iso-8859-1 -*-
-""" Codec for the Punicode encoding, as specified in RFC 3492
-
-Written by Martin v. Löwis.
-"""
-
-import codecs
-
-##################### Encoding #####################################
-
-def segregate(str):
-    """3.1 Basic code point segregation"""
-    base = []
-    extended = {}
-    for c in str:
-        if ord(c) < 128:
-            base.append(c)
-        else:
-            extended[c] = 1
-    extended = extended.keys()
-    extended.sort()
-    return "".join(base).encode("ascii"),extended
-
-def selective_len(str, max):
-    """Return the length of str, considering only characters below max."""
-    res = 0
-    for c in str:
-        if ord(c) < max:
-            res += 1
-    return res
-
-def selective_find(str, char, index, pos):
-    """Return a pair (index, pos), indicating the next occurrence of
-    char in str. index is the position of the character considering
-    only ordinals up to and including char, and pos is the position in
-    the full string. index/pos is the starting position in the full
-    string."""
-
-    l = len(str)
-    while 1:
-        pos += 1
-        if pos == l:
-            return (-1, -1)
-        c = str[pos]
-        if c == char:
-            return index+1, pos
-        elif c < char:
-            index += 1
-
-def insertion_unsort(str, extended):
-    """3.2 Insertion unsort coding"""
-    oldchar = 0x80
-    result = []
-    oldindex = -1
-    for c in extended:
-        index = pos = -1
-        char = ord(c)
-        curlen = selective_len(str, char)
-        delta = (curlen+1) * (char - oldchar)
-        while 1:
-            index,pos = selective_find(str,c,index,pos)
-            if index == -1:
-                break
-            delta += index - oldindex
-            result.append(delta-1)
-            oldindex = index
-            delta = 0
-        oldchar = char
-
-    return result
-
-def T(j, bias):
-    # Punycode parameters: tmin = 1, tmax = 26, base = 36
-    res = 36 * (j + 1) - bias
-    if res < 1: return 1
-    if res > 26: return 26
-    return res
-
-digits = "abcdefghijklmnopqrstuvwxyz0123456789"
-def generate_generalized_integer(N, bias):
-    """3.3 Generalized variable-length integers"""
-    result = []
-    j = 0
-    while 1:
-        t = T(j, bias)
-        if N < t:
-            result.append(digits[N])
-            return result
-        result.append(digits[t + ((N - t) % (36 - t))])
-        N = (N - t) // (36 - t)
-        j += 1
-
-def adapt(delta, first, numchars):
-    if first:
-        delta //= 700
-    else:
-        delta //= 2
-    delta += delta // numchars
-    # ((base - tmin) * tmax) // 2 == 455
-    divisions = 0
-    while delta > 455:
-        delta = delta // 35 # base - tmin
-        divisions += 36
-    bias = divisions + (36 * delta // (delta + 38))
-    return bias
-
-
-def generate_integers(baselen, deltas):
-    """3.4 Bias adaptation"""
-    # Punycode parameters: initial bias = 72, damp = 700, skew = 38
-    result = []
-    bias = 72
-    for points, delta in enumerate(deltas):
-        s = generate_generalized_integer(delta, bias)
-        result.extend(s)
-        bias = adapt(delta, points==0, baselen+points+1)
-    return "".join(result)
-
-def punycode_encode(text):
-    base, extended = segregate(text)
-    base = base.encode("ascii")
-    deltas = insertion_unsort(text, extended)
-    extended = generate_integers(len(base), deltas)
-    if base:
-        return base + "-" + extended
-    return extended
-
-##################### Decoding #####################################
-
-def decode_generalized_number(extended, extpos, bias, errors):
-    """3.3 Generalized variable-length integers"""
-    result = 0
-    w = 1
-    j = 0
-    while 1:
-        try:
-            char = ord(extended[extpos])
-        except IndexError:
-            if errors == "strict":
-                raise UnicodeError, "incomplete punicode string"
-            return extpos + 1, None
-        extpos += 1
-        if 0x41 <= char <= 0x5A: # A-Z
-            digit = char - 0x41
-        elif 0x30 <= char <= 0x39:
-            digit = char - 22 # 0x30-26
-        elif errors == "strict":
-            raise UnicodeError("Invalid extended code point '%s'"
-                               % extended[extpos])
-        else:
-            return extpos, None
-        t = T(j, bias)
-        result += digit * w
-        if digit < t:
-            return extpos, result
-        w = w * (36 - t)
-        j += 1
-
-
-def insertion_sort(base, extended, errors):
-    """3.2 Insertion unsort coding"""
-    char = 0x80
-    pos = -1
-    bias = 72
-    extpos = 0
-    while extpos < len(extended):
-        newpos, delta = decode_generalized_number(extended, extpos,
-                                                  bias, errors)
-        if delta is None:
-            # There was an error in decoding. We can't continue because
-            # synchronization is lost.
-            return base
-        pos += delta+1
-        char += pos // (len(base) + 1)
-        if char > 0x10FFFF:
-            if errors == "strict":
-                raise UnicodeError, ("Invalid character U+%x" % char)
-            char = ord('?')
-        pos = pos % (len(base) + 1)
-        base = base[:pos] + unichr(char) + base[pos:]
-        bias = adapt(delta, (extpos == 0), len(base))
-        extpos = newpos
-    return base
-
-def punycode_decode(text, errors):
-    pos = text.rfind("-")
-    if pos == -1:
-        base = ""
-        extended = text
-    else:
-        base = text[:pos]
-        extended = text[pos+1:]
-    base = unicode(base, "ascii", errors)
-    extended = extended.upper()
-    return insertion_sort(base, extended, errors)
-
-### Codec APIs
-
-class Codec(codecs.Codec):
-
-    def encode(self,input,errors='strict'):
-        res = punycode_encode(input)
-        return res, len(input)
-
-    def decode(self,input,errors='strict'):
-        if errors not in ('strict', 'replace', 'ignore'):
-            raise UnicodeError, "Unsupported error handling "+errors
-        res = punycode_decode(input, errors)
-        return res, len(input)
-
-class IncrementalEncoder(codecs.IncrementalEncoder):
-    def encode(self, input, final=False):
-        return punycode_encode(input)
-
-class IncrementalDecoder(codecs.IncrementalDecoder):
-    def decode(self, input, final=False):
-        if self.errors not in ('strict', 'replace', 'ignore'):
-            raise UnicodeError, "Unsupported error handling "+self.errors
-        return punycode_decode(input, self.errors)
-
-class StreamWriter(Codec,codecs.StreamWriter):
-    pass
-
-class StreamReader(Codec,codecs.StreamReader):
-    pass
-
-### encodings module API
-
-def getregentry():
-    return codecs.CodecInfo(
-        name='punycode',
-        encode=Codec().encode,
-        decode=Codec().decode,
-        incrementalencoder=IncrementalEncoder,
-        incrementaldecoder=IncrementalDecoder,
-        streamwriter=StreamWriter,
-        streamreader=StreamReader,
-    )
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