Mercurial > repos > shellac > guppy_basecaller
annotate env/lib/python3.7/site-packages/ruamel/yaml/scalarstring.py @ 3:758bc20232e8 draft
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| author | shellac | 
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| date | Thu, 14 May 2020 16:20:52 -0400 | 
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changeset | 1 # coding: utf-8 | 
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changeset | 2 | 
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changeset | 3 from __future__ import print_function, absolute_import, division, unicode_literals | 
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changeset | 4 | 
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changeset | 5 from ruamel.yaml.compat import text_type | 
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changeset | 6 from ruamel.yaml.anchor import Anchor | 
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changeset | 7 | 
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changeset | 8 if False: # MYPY | 
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changeset | 9 from typing import Text, Any, Dict, List # NOQA | 
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changeset | 10 | 
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changeset | 11 __all__ = [ | 
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changeset | 12 'ScalarString', | 
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changeset | 13 'LiteralScalarString', | 
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changeset | 14 'FoldedScalarString', | 
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changeset | 15 'SingleQuotedScalarString', | 
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changeset | 16 'DoubleQuotedScalarString', | 
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changeset | 17 'PlainScalarString', | 
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changeset | 18 # PreservedScalarString is the old name, as it was the first to be preserved on rt, | 
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changeset | 19 # use LiteralScalarString instead | 
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changeset | 20 'PreservedScalarString', | 
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changeset | 21 ] | 
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changeset | 22 | 
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changeset | 23 | 
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changeset | 24 class ScalarString(text_type): | 
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changeset | 25 __slots__ = Anchor.attrib | 
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changeset | 26 | 
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changeset | 27 def __new__(cls, *args, **kw): | 
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changeset | 28 # type: (Any, Any) -> Any | 
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changeset | 29 anchor = kw.pop('anchor', None) # type: ignore | 
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changeset | 30 ret_val = text_type.__new__(cls, *args, **kw) # type: ignore | 
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changeset | 31 if anchor is not None: | 
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changeset | 32 ret_val.yaml_set_anchor(anchor, always_dump=True) | 
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changeset | 33 return ret_val | 
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changeset | 34 | 
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changeset | 35 def replace(self, old, new, maxreplace=-1): | 
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changeset | 36 # type: (Any, Any, int) -> Any | 
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changeset | 37 return type(self)((text_type.replace(self, old, new, maxreplace))) | 
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changeset | 38 | 
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changeset | 39 @property | 
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changeset | 40 def anchor(self): | 
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changeset | 41 # type: () -> Any | 
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changeset | 42 if not hasattr(self, Anchor.attrib): | 
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changeset | 43 setattr(self, Anchor.attrib, Anchor()) | 
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changeset | 44 return getattr(self, Anchor.attrib) | 
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changeset | 45 | 
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changeset | 46 def yaml_anchor(self, any=False): | 
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changeset | 47 # type: (bool) -> Any | 
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changeset | 48 if not hasattr(self, Anchor.attrib): | 
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changeset | 49 return None | 
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changeset | 50 if any or self.anchor.always_dump: | 
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changeset | 51 return self.anchor | 
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changeset | 52 return None | 
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changeset | 53 | 
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changeset | 54 def yaml_set_anchor(self, value, always_dump=False): | 
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changeset | 55 # type: (Any, bool) -> None | 
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changeset | 56 self.anchor.value = value | 
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changeset | 57 self.anchor.always_dump = always_dump | 
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changeset | 58 | 
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changeset | 59 | 
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changeset | 60 class LiteralScalarString(ScalarString): | 
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changeset | 61 __slots__ = 'comment' # the comment after the | on the first line | 
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changeset | 62 | 
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changeset | 63 style = '|' | 
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changeset | 64 | 
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changeset | 65 def __new__(cls, value, anchor=None): | 
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changeset | 66 # type: (Text, Any) -> Any | 
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changeset | 67 return ScalarString.__new__(cls, value, anchor=anchor) | 
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changeset | 68 | 
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changeset | 69 | 
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changeset | 70 PreservedScalarString = LiteralScalarString | 
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changeset | 71 | 
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changeset | 72 | 
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changeset | 73 class FoldedScalarString(ScalarString): | 
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changeset | 74 __slots__ = ('fold_pos', 'comment') # the comment after the > on the first line | 
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changeset | 75 | 
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changeset | 76 style = '>' | 
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changeset | 77 | 
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changeset | 78 def __new__(cls, value, anchor=None): | 
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changeset | 79 # type: (Text, Any) -> Any | 
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changeset | 80 return ScalarString.__new__(cls, value, anchor=anchor) | 
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changeset | 81 | 
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changeset | 82 | 
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changeset | 83 class SingleQuotedScalarString(ScalarString): | 
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changeset | 84 __slots__ = () | 
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changeset | 85 | 
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changeset | 86 style = "'" | 
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changeset | 87 | 
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changeset | 88 def __new__(cls, value, anchor=None): | 
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changeset | 89 # type: (Text, Any) -> Any | 
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changeset | 90 return ScalarString.__new__(cls, value, anchor=anchor) | 
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changeset | 91 | 
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changeset | 92 | 
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changeset | 93 class DoubleQuotedScalarString(ScalarString): | 
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changeset | 94 __slots__ = () | 
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changeset | 95 | 
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changeset | 96 style = '"' | 
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changeset | 97 | 
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changeset | 98 def __new__(cls, value, anchor=None): | 
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changeset | 99 # type: (Text, Any) -> Any | 
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changeset | 100 return ScalarString.__new__(cls, value, anchor=anchor) | 
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changeset | 101 | 
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changeset | 102 | 
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changeset | 103 class PlainScalarString(ScalarString): | 
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changeset | 104 __slots__ = () | 
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changeset | 105 | 
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changeset | 106 style = '' | 
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changeset | 107 | 
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changeset | 108 def __new__(cls, value, anchor=None): | 
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changeset | 109 # type: (Text, Any) -> Any | 
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changeset | 110 return ScalarString.__new__(cls, value, anchor=anchor) | 
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changeset | 111 | 
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changeset | 112 | 
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changeset | 113 def preserve_literal(s): | 
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changeset | 114 # type: (Text) -> Text | 
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changeset | 115 return LiteralScalarString(s.replace('\r\n', '\n').replace('\r', '\n')) | 
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changeset | 116 | 
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changeset | 117 | 
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changeset | 118 def walk_tree(base, map=None): | 
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changeset | 119 # type: (Any, Any) -> None | 
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changeset | 120 """ | 
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changeset | 121 the routine here walks over a simple yaml tree (recursing in | 
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changeset | 122 dict values and list items) and converts strings that | 
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changeset | 123 have multiple lines to literal scalars | 
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changeset | 124 | 
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changeset | 125 You can also provide an explicit (ordered) mapping for multiple transforms | 
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changeset | 126 (first of which is executed): | 
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changeset | 127 map = ruamel.yaml.compat.ordereddict | 
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changeset | 128 map['\n'] = preserve_literal | 
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changeset | 129 map[':'] = SingleQuotedScalarString | 
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changeset | 130 walk_tree(data, map=map) | 
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changeset | 131 """ | 
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changeset | 132 from ruamel.yaml.compat import string_types, MutableMapping, MutableSequence | 
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changeset | 133 | 
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changeset | 134 if map is None: | 
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changeset | 135 map = {'\n': preserve_literal} | 
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changeset | 136 | 
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changeset | 137 if isinstance(base, MutableMapping): | 
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changeset | 138 for k in base: | 
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changeset | 139 v = base[k] # type: Text | 
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changeset | 140 if isinstance(v, string_types): | 
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changeset | 141 for ch in map: | 
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changeset | 142 if ch in v: | 
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changeset | 143 base[k] = map[ch](v) | 
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changeset | 144 break | 
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changeset | 145 else: | 
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changeset | 146 walk_tree(v) | 
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changeset | 147 elif isinstance(base, MutableSequence): | 
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changeset | 148 for idx, elem in enumerate(base): | 
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changeset | 149 if isinstance(elem, string_types): | 
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changeset | 150 for ch in map: | 
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changeset | 151 if ch in elem: # type: ignore | 
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changeset | 152 base[idx] = map[ch](elem) | 
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changeset | 153 break | 
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changeset | 154 else: | 
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changeset | 155 walk_tree(elem) | 
