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| 1 | +class JuliaCompat: |
| 2 | + def __init__(self, src): |
| 3 | + if isinstance(src, str): |
| 4 | + self.parts = self.parse_parts(src) |
| 5 | + else: |
| 6 | + self.parts = list(src) |
| 7 | + def parse_parts(self, src): |
| 8 | + return [self.parse_part(part) for part in src.split(',')] |
| 9 | + def parse_part(self, src): |
| 10 | + src = src.strip() |
| 11 | + if src.startswith('='): |
| 12 | + return self.parse_eq(src[1:]) |
| 13 | + elif src.startswith('^'): |
| 14 | + return self.parse_caret(src[1:]) |
| 15 | + elif src.startswith('~'): |
| 16 | + return self.parse_tilde(src[1:]) |
| 17 | + else: |
| 18 | + return self.parse_caret(src) |
| 19 | + def parse_eq(self, src): |
| 20 | + return Eq(Version(src)) |
| 21 | + def parse_tilde(self, src): |
| 22 | + v = Version(src) |
| 23 | + if len(v.parts) == 1: |
| 24 | + return Range(v, v.next_major()) |
| 25 | + else: |
| 26 | + return Range(v, v.next_minor()) |
| 27 | + def parse_caret(self, src): |
| 28 | + v = Version(src) |
| 29 | + if v.major or v.minor is None: |
| 30 | + return Range(v, v.next_major()) |
| 31 | + elif v.minor or v.patch is None: |
| 32 | + return Range(v, v.next_minor()) |
| 33 | + else: |
| 34 | + return Range(v, v.next_patch()) |
| 35 | + def jlstr(self): |
| 36 | + return ', '.join(p.jlstr() for p in self.parts) |
| 37 | + def isempty(self): |
| 38 | + return all(p.isempty() for p in self.parts) |
| 39 | + def __and__(self, other): |
| 40 | + parts = [] |
| 41 | + for p1 in self.parts: |
| 42 | + for p2 in other.parts: |
| 43 | + p3 = p1 & p2 |
| 44 | + if not p3.isempty(): |
| 45 | + parts.append(p3) |
| 46 | + return JuliaCompat(parts) |
| 47 | + def __repr__(self): |
| 48 | + return 'JuliaCompat({!r})'.format(self.parts) |
| 49 | + |
| 50 | +class Version: |
| 51 | + def __init__(self, src): |
| 52 | + if isinstance(src, Version): |
| 53 | + src = src.parts |
| 54 | + elif isinstance(src, str): |
| 55 | + src = src.strip().split('.') |
| 56 | + if 1 <= len(src) <= 3: |
| 57 | + self.parts = tuple(map(int, src)) |
| 58 | + else: |
| 59 | + raise Exception("invalid version") |
| 60 | + def __repr__(self): |
| 61 | + return 'Version({!r})'.format(self.parts) |
| 62 | + @property |
| 63 | + def major(self): |
| 64 | + return self.parts[0] |
| 65 | + @property |
| 66 | + def minor(self): |
| 67 | + return self.parts[1] if len(self.parts) > 1 else None |
| 68 | + @property |
| 69 | + def patch(self): |
| 70 | + return self.parts[2] if len(self.parts) > 2 else None |
| 71 | + def jlstr(self): |
| 72 | + return '.'.join(map(str, self.parts)) |
| 73 | + def pad_zeros(self): |
| 74 | + return type(self)((self.major or 0, self.minor or 0, self.patch or 0)) |
| 75 | + def next_major(self): |
| 76 | + return type(self)((self.major+1, 0, 0)) |
| 77 | + def next_minor(self): |
| 78 | + return type(self)((self.major, (self.minor or 0)+1, 0)) |
| 79 | + def next_patch(self): |
| 80 | + return type(self)((self.major, self.minor or 0, (self.patch or 0)+1)) |
| 81 | + def __eq__(self, other): |
| 82 | + return self.parts == other.parts |
| 83 | + def __le__(self, other): |
| 84 | + return self.parts <= other.parts |
| 85 | + def __lt__(self, other): |
| 86 | + return self.parts < other.parts |
| 87 | + |
| 88 | +class Eq: |
| 89 | + def __init__(self, v): |
| 90 | + self.v = v.pad_zeros() |
| 91 | + def jlstr(self): |
| 92 | + return '=' + self.v.jlstr() |
| 93 | + def isempty(self): |
| 94 | + return False |
| 95 | + def __and__(self, other): |
| 96 | + if self in other: |
| 97 | + return self |
| 98 | + else: |
| 99 | + return Range(Version('0'), Version('0')) |
| 100 | + def __rand__(self, other): |
| 101 | + return self.__and__(other) |
| 102 | + def __contains__(self, v): |
| 103 | + return self.v == v |
| 104 | + def __repr__(self): |
| 105 | + return 'Eq({!r})'.format(self.v) |
| 106 | + |
| 107 | +class Range: |
| 108 | + def __init__(self, v0, v1): |
| 109 | + self.v0 = v0.pad_zeros() |
| 110 | + self.v1 = v1.pad_zeros() |
| 111 | + def jlstr(self): |
| 112 | + if self.v1 == self.v0.next_major(): |
| 113 | + if self.v0.major: |
| 114 | + return self.v0.jlstr() |
| 115 | + elif self.v0.minor == 0 and self.v0.patch == 0: |
| 116 | + return '0' |
| 117 | + elif self.v1 == self.v0.next_minor(): |
| 118 | + if self.v0.major == 0: |
| 119 | + if self.v0.minor: |
| 120 | + return self.v0.jlstr() |
| 121 | + elif self.v0.patch == 0: |
| 122 | + return '0.0' |
| 123 | + return '~' + self.v0.jlstr() |
| 124 | + elif self.v1 == self.v0.next_patch(): |
| 125 | + if self.v0.major == 0 and self.v0.minor == 0: |
| 126 | + return self.v0.jlstr() |
| 127 | + raise ValueError("cannot represent range [{}, {}) as a compat entry".format(self.v0.jlstr(), self.v1.jlstr())) |
| 128 | + def isempty(self): |
| 129 | + return self.v1 <= self.v0 |
| 130 | + def __and__(self, other): |
| 131 | + if isinstance(other, Range): |
| 132 | + return Range(max(self.v0, other.v0), min(self.v1, other.v1)) |
| 133 | + else: |
| 134 | + return NotImplemented |
| 135 | + def __contains__(self, v): |
| 136 | + return self.v0 <= v and v < self.v1 |
| 137 | + def __repr__(self): |
| 138 | + return 'Range({!r}, {!r})'.format(self.v0, self.v1) |
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