annotate env/lib/python3.7/site-packages/ruamel/yaml/scalarstring.py @ 3:758bc20232e8 draft

"planemo upload commit 2a0fe2cc28b09e101d37293e53e82f61762262ec"
author shellac
date Thu, 14 May 2020 16:20:52 -0400
parents 26e78fe6e8c4
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1 # coding: utf-8
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2
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3 from __future__ import print_function, absolute_import, division, unicode_literals
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4
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5 from ruamel.yaml.compat import text_type
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6 from ruamel.yaml.anchor import Anchor
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7
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8 if False: # MYPY
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9 from typing import Text, Any, Dict, List # NOQA
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10
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11 __all__ = [
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12 'ScalarString',
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13 'LiteralScalarString',
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14 'FoldedScalarString',
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15 'SingleQuotedScalarString',
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16 'DoubleQuotedScalarString',
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17 'PlainScalarString',
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18 # PreservedScalarString is the old name, as it was the first to be preserved on rt,
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19 # use LiteralScalarString instead
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20 'PreservedScalarString',
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21 ]
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22
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23
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24 class ScalarString(text_type):
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25 __slots__ = Anchor.attrib
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26
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27 def __new__(cls, *args, **kw):
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28 # type: (Any, Any) -> Any
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29 anchor = kw.pop('anchor', None) # type: ignore
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30 ret_val = text_type.__new__(cls, *args, **kw) # type: ignore
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31 if anchor is not None:
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32 ret_val.yaml_set_anchor(anchor, always_dump=True)
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33 return ret_val
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34
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35 def replace(self, old, new, maxreplace=-1):
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36 # type: (Any, Any, int) -> Any
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37 return type(self)((text_type.replace(self, old, new, maxreplace)))
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38
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39 @property
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40 def anchor(self):
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41 # type: () -> Any
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42 if not hasattr(self, Anchor.attrib):
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43 setattr(self, Anchor.attrib, Anchor())
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44 return getattr(self, Anchor.attrib)
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45
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46 def yaml_anchor(self, any=False):
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47 # type: (bool) -> Any
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48 if not hasattr(self, Anchor.attrib):
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49 return None
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50 if any or self.anchor.always_dump:
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51 return self.anchor
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52 return None
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53
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54 def yaml_set_anchor(self, value, always_dump=False):
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55 # type: (Any, bool) -> None
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56 self.anchor.value = value
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57 self.anchor.always_dump = always_dump
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58
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59
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60 class LiteralScalarString(ScalarString):
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61 __slots__ = 'comment' # the comment after the | on the first line
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62
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63 style = '|'
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64
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65 def __new__(cls, value, anchor=None):
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66 # type: (Text, Any) -> Any
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67 return ScalarString.__new__(cls, value, anchor=anchor)
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68
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69
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70 PreservedScalarString = LiteralScalarString
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71
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72
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73 class FoldedScalarString(ScalarString):
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74 __slots__ = ('fold_pos', 'comment') # the comment after the > on the first line
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75
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76 style = '>'
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77
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78 def __new__(cls, value, anchor=None):
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79 # type: (Text, Any) -> Any
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80 return ScalarString.__new__(cls, value, anchor=anchor)
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81
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82
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83 class SingleQuotedScalarString(ScalarString):
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84 __slots__ = ()
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85
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86 style = "'"
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87
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88 def __new__(cls, value, anchor=None):
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89 # type: (Text, Any) -> Any
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90 return ScalarString.__new__(cls, value, anchor=anchor)
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91
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92
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93 class DoubleQuotedScalarString(ScalarString):
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94 __slots__ = ()
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95
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96 style = '"'
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97
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98 def __new__(cls, value, anchor=None):
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99 # type: (Text, Any) -> Any
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100 return ScalarString.__new__(cls, value, anchor=anchor)
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101
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102
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103 class PlainScalarString(ScalarString):
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104 __slots__ = ()
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105
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106 style = ''
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107
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108 def __new__(cls, value, anchor=None):
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109 # type: (Text, Any) -> Any
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110 return ScalarString.__new__(cls, value, anchor=anchor)
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111
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112
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113 def preserve_literal(s):
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114 # type: (Text) -> Text
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115 return LiteralScalarString(s.replace('\r\n', '\n').replace('\r', '\n'))
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116
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117
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118 def walk_tree(base, map=None):
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119 # type: (Any, Any) -> None
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120 """
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121 the routine here walks over a simple yaml tree (recursing in
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122 dict values and list items) and converts strings that
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123 have multiple lines to literal scalars
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124
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125 You can also provide an explicit (ordered) mapping for multiple transforms
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126 (first of which is executed):
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127 map = ruamel.yaml.compat.ordereddict
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128 map['\n'] = preserve_literal
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129 map[':'] = SingleQuotedScalarString
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130 walk_tree(data, map=map)
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131 """
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132 from ruamel.yaml.compat import string_types, MutableMapping, MutableSequence
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133
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134 if map is None:
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135 map = {'\n': preserve_literal}
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136
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137 if isinstance(base, MutableMapping):
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138 for k in base:
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139 v = base[k] # type: Text
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140 if isinstance(v, string_types):
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141 for ch in map:
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142 if ch in v:
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143 base[k] = map[ch](v)
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144 break
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145 else:
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146 walk_tree(v)
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147 elif isinstance(base, MutableSequence):
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148 for idx, elem in enumerate(base):
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149 if isinstance(elem, string_types):
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150 for ch in map:
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151 if ch in elem: # type: ignore
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152 base[idx] = map[ch](elem)
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153 break
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154 else:
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155 walk_tree(elem)