Mercurial > repos > shellac > guppy_basecaller

annotate env/lib/python3.7/site-packages/ruamel/yaml/parser.py @ 4:79f47841a781 draft

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
"planemo upload commit 2a0fe2cc28b09e101d37293e53e82f61762262ec"
author shellac
date Thu, 14 May 2020 16:47:39 -0400
parents 26e78fe6e8c4
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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0
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1 # coding: utf-8
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2
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3 from __future__ import absolute_import
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4
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5 # The following YAML grammar is LL(1) and is parsed by a recursive descent
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6 # parser.
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7 #
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8 # stream ::= STREAM-START implicit_document? explicit_document*
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9 # STREAM-END
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10 # implicit_document ::= block_node DOCUMENT-END*
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11 # explicit_document ::= DIRECTIVE* DOCUMENT-START block_node? DOCUMENT-END*
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12 # block_node_or_indentless_sequence ::=
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13 # ALIAS
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14 # | properties (block_content |
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15 # indentless_block_sequence)?
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16 # | block_content
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17 # | indentless_block_sequence
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18 # block_node ::= ALIAS
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19 # | properties block_content?
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20 # | block_content
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21 # flow_node ::= ALIAS
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22 # | properties flow_content?
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23 # | flow_content
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24 # properties ::= TAG ANCHOR? | ANCHOR TAG?
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25 # block_content ::= block_collection | flow_collection | SCALAR
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26 # flow_content ::= flow_collection | SCALAR
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27 # block_collection ::= block_sequence | block_mapping
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28 # flow_collection ::= flow_sequence | flow_mapping
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29 # block_sequence ::= BLOCK-SEQUENCE-START (BLOCK-ENTRY block_node?)*
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30 # BLOCK-END
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31 # indentless_sequence ::= (BLOCK-ENTRY block_node?)+
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32 # block_mapping ::= BLOCK-MAPPING_START
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33 # ((KEY block_node_or_indentless_sequence?)?
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34 # (VALUE block_node_or_indentless_sequence?)?)*
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35 # BLOCK-END
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36 # flow_sequence ::= FLOW-SEQUENCE-START
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37 # (flow_sequence_entry FLOW-ENTRY)*
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38 # flow_sequence_entry?
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39 # FLOW-SEQUENCE-END
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40 # flow_sequence_entry ::= flow_node | KEY flow_node? (VALUE flow_node?)?
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41 # flow_mapping ::= FLOW-MAPPING-START
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42 # (flow_mapping_entry FLOW-ENTRY)*
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43 # flow_mapping_entry?
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44 # FLOW-MAPPING-END
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45 # flow_mapping_entry ::= flow_node | KEY flow_node? (VALUE flow_node?)?
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46 #
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47 # FIRST sets:
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48 #
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49 # stream: { STREAM-START }
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50 # explicit_document: { DIRECTIVE DOCUMENT-START }
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51 # implicit_document: FIRST(block_node)
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52 # block_node: { ALIAS TAG ANCHOR SCALAR BLOCK-SEQUENCE-START
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53 # BLOCK-MAPPING-START FLOW-SEQUENCE-START FLOW-MAPPING-START }
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54 # flow_node: { ALIAS ANCHOR TAG SCALAR FLOW-SEQUENCE-START FLOW-MAPPING-START }
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55 # block_content: { BLOCK-SEQUENCE-START BLOCK-MAPPING-START
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56 # FLOW-SEQUENCE-START FLOW-MAPPING-START SCALAR }
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57 # flow_content: { FLOW-SEQUENCE-START FLOW-MAPPING-START SCALAR }
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58 # block_collection: { BLOCK-SEQUENCE-START BLOCK-MAPPING-START }
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59 # flow_collection: { FLOW-SEQUENCE-START FLOW-MAPPING-START }
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60 # block_sequence: { BLOCK-SEQUENCE-START }
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61 # block_mapping: { BLOCK-MAPPING-START }
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62 # block_node_or_indentless_sequence: { ALIAS ANCHOR TAG SCALAR
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63 # BLOCK-SEQUENCE-START BLOCK-MAPPING-START FLOW-SEQUENCE-START
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64 # FLOW-MAPPING-START BLOCK-ENTRY }
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65 # indentless_sequence: { ENTRY }
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66 # flow_collection: { FLOW-SEQUENCE-START FLOW-MAPPING-START }
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67 # flow_sequence: { FLOW-SEQUENCE-START }
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68 # flow_mapping: { FLOW-MAPPING-START }
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69 # flow_sequence_entry: { ALIAS ANCHOR TAG SCALAR FLOW-SEQUENCE-START
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70 # FLOW-MAPPING-START KEY }
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71 # flow_mapping_entry: { ALIAS ANCHOR TAG SCALAR FLOW-SEQUENCE-START
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72 # FLOW-MAPPING-START KEY }
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73
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74 # need to have full path with import, as pkg_resources tries to load parser.py in __init__.py
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75 # only to not do anything with the package afterwards
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76 # and for Jython too
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77
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78
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79 from ruamel.yaml.error import MarkedYAMLError
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80 from ruamel.yaml.tokens import * # NOQA
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81 from ruamel.yaml.events import * # NOQA
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82 from ruamel.yaml.scanner import Scanner, RoundTripScanner, ScannerError # NOQA
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83 from ruamel.yaml.compat import utf8, nprint, nprintf # NOQA
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84
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85 if False: # MYPY
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86 from typing import Any, Dict, Optional, List # NOQA
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87
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88 __all__ = ['Parser', 'RoundTripParser', 'ParserError']
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89
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90
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91 class ParserError(MarkedYAMLError):
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92 pass
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93
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94
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95 class Parser(object):
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96 # Since writing a recursive-descendant parser is a straightforward task, we
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97 # do not give many comments here.
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98
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99 DEFAULT_TAGS = {u'!': u'!', u'!!': u'tag:yaml.org,2002:'}
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100
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101 def __init__(self, loader):
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102 # type: (Any) -> None
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103 self.loader = loader
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104 if self.loader is not None and getattr(self.loader, '_parser', None) is None:
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105 self.loader._parser = self
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106 self.reset_parser()
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107
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108 def reset_parser(self):
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109 # type: () -> None
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110 # Reset the state attributes (to clear self-references)
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111 self.current_event = None
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112 self.yaml_version = None
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113 self.tag_handles = {} # type: Dict[Any, Any]
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114 self.states = [] # type: List[Any]
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115 self.marks = [] # type: List[Any]
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116 self.state = self.parse_stream_start # type: Any
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117
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118 def dispose(self):
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119 # type: () -> None
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120 self.reset_parser()
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121
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122 @property
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123 def scanner(self):
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124 # type: () -> Any
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125 if hasattr(self.loader, 'typ'):
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126 return self.loader.scanner
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127 return self.loader._scanner
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128
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129 @property
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130 def resolver(self):
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131 # type: () -> Any
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132 if hasattr(self.loader, 'typ'):
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133 return self.loader.resolver
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134 return self.loader._resolver
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135
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136 def check_event(self, *choices):
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137 # type: (Any) -> bool
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138 # Check the type of the next event.
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139 if self.current_event is None:
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140 if self.state:
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141 self.current_event = self.state()
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142 if self.current_event is not None:
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143 if not choices:
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144 return True
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145 for choice in choices:
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146 if isinstance(self.current_event, choice):
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147 return True
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148 return False
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149
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150 def peek_event(self):
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151 # type: () -> Any
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152 # Get the next event.
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153 if self.current_event is None:
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154 if self.state:
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155 self.current_event = self.state()
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156 return self.current_event
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157
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158 def get_event(self):
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159 # type: () -> Any
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160 # Get the next event and proceed further.
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161 if self.current_event is None:
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162 if self.state:
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163 self.current_event = self.state()
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164 value = self.current_event
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165 self.current_event = None
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166 return value
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167
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168 # stream ::= STREAM-START implicit_document? explicit_document*
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169 # STREAM-END
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170 # implicit_document ::= block_node DOCUMENT-END*
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171 # explicit_document ::= DIRECTIVE* DOCUMENT-START block_node? DOCUMENT-END*
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172
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173 def parse_stream_start(self):
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174 # type: () -> Any
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175 # Parse the stream start.
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176 token = self.scanner.get_token()
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177 token.move_comment(self.scanner.peek_token())
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178 event = StreamStartEvent(token.start_mark, token.end_mark, encoding=token.encoding)
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179
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180 # Prepare the next state.
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181 self.state = self.parse_implicit_document_start
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182
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183 return event
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184
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185 def parse_implicit_document_start(self):
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186 # type: () -> Any
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187 # Parse an implicit document.
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188 if not self.scanner.check_token(DirectiveToken, DocumentStartToken, StreamEndToken):
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189 self.tag_handles = self.DEFAULT_TAGS
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190 token = self.scanner.peek_token()
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191 start_mark = end_mark = token.start_mark
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192 event = DocumentStartEvent(start_mark, end_mark, explicit=False)
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193
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194 # Prepare the next state.
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195 self.states.append(self.parse_document_end)
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196 self.state = self.parse_block_node
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197
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198 return event
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199
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200 else:
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201 return self.parse_document_start()
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202
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203 def parse_document_start(self):
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204 # type: () -> Any
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205 # Parse any extra document end indicators.
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206 while self.scanner.check_token(DocumentEndToken):
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207 self.scanner.get_token()
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208 # Parse an explicit document.
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209 if not self.scanner.check_token(StreamEndToken):
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210 token = self.scanner.peek_token()
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211 start_mark = token.start_mark
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212 version, tags = self.process_directives()
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213 if not self.scanner.check_token(DocumentStartToken):
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214 raise ParserError(
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215 None,
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216 None,
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217 "expected '<document start>', but found %r" % self.scanner.peek_token().id,
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218 self.scanner.peek_token().start_mark,
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219 )
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220 token = self.scanner.get_token()
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221 end_mark = token.end_mark
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222 event = DocumentStartEvent(
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223 start_mark, end_mark, explicit=True, version=version, tags=tags
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224 ) # type: Any
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225 self.states.append(self.parse_document_end)
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226 self.state = self.parse_document_content
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227 else:
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228 # Parse the end of the stream.
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229 token = self.scanner.get_token()
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230 event = StreamEndEvent(token.start_mark, token.end_mark, comment=token.comment)
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231 assert not self.states
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232 assert not self.marks
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233 self.state = None
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234 return event
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235
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236 def parse_document_end(self):
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237 # type: () -> Any
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238 # Parse the document end.
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239 token = self.scanner.peek_token()
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240 start_mark = end_mark = token.start_mark
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241 explicit = False
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242 if self.scanner.check_token(DocumentEndToken):
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243 token = self.scanner.get_token()
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244 end_mark = token.end_mark
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245 explicit = True
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246 event = DocumentEndEvent(start_mark, end_mark, explicit=explicit)
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247
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248 # Prepare the next state.
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249 if self.resolver.processing_version == (1, 1):
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250 self.state = self.parse_document_start
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251 else:
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252 self.state = self.parse_implicit_document_start
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253
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254 return event
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255
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256 def parse_document_content(self):
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257 # type: () -> Any
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258 if self.scanner.check_token(
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259 DirectiveToken, DocumentStartToken, DocumentEndToken, StreamEndToken
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260 ):
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261 event = self.process_empty_scalar(self.scanner.peek_token().start_mark)
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262 self.state = self.states.pop()
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263 return event
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264 else:
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265 return self.parse_block_node()
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266
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267 def process_directives(self):
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268 # type: () -> Any
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269 self.yaml_version = None
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270 self.tag_handles = {}
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271 while self.scanner.check_token(DirectiveToken):
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272 token = self.scanner.get_token()
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273 if token.name == u'YAML':
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274 if self.yaml_version is not None:
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275 raise ParserError(
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276 None, None, 'found duplicate YAML directive', token.start_mark
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277 )
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278 major, minor = token.value
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279 if major != 1:
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280 raise ParserError(
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281 None,
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282 None,
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283 'found incompatible YAML document (version 1.* is ' 'required)',
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284 token.start_mark,
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285 )
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286 self.yaml_version = token.value
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287 elif token.name == u'TAG':
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288 handle, prefix = token.value
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289 if handle in self.tag_handles:
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290 raise ParserError(
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291 None, None, 'duplicate tag handle %r' % utf8(handle), token.start_mark
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292 )
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293 self.tag_handles[handle] = prefix
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294 if bool(self.tag_handles):
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295 value = self.yaml_version, self.tag_handles.copy() # type: Any
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296 else:
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297 value = self.yaml_version, None
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298 for key in self.DEFAULT_TAGS:
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299 if key not in self.tag_handles:
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300 self.tag_handles[key] = self.DEFAULT_TAGS[key]
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301 return value
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302
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303 # block_node_or_indentless_sequence ::= ALIAS
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304 # | properties (block_content | indentless_block_sequence)?
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305 # | block_content
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306 # | indentless_block_sequence
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307 # block_node ::= ALIAS
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308 # | properties block_content?
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309 # | block_content
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310 # flow_node ::= ALIAS
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311 # | properties flow_content?
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312 # | flow_content
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313 # properties ::= TAG ANCHOR? | ANCHOR TAG?
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314 # block_content ::= block_collection | flow_collection | SCALAR
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315 # flow_content ::= flow_collection | SCALAR
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316 # block_collection ::= block_sequence | block_mapping
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317 # flow_collection ::= flow_sequence | flow_mapping
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318
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319 def parse_block_node(self):
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320 # type: () -> Any
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321 return self.parse_node(block=True)
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322
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323 def parse_flow_node(self):
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324 # type: () -> Any
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325 return self.parse_node()
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326
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327 def parse_block_node_or_indentless_sequence(self):
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328 # type: () -> Any
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329 return self.parse_node(block=True, indentless_sequence=True)
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330
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331 def transform_tag(self, handle, suffix):
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332 # type: (Any, Any) -> Any
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333 return self.tag_handles[handle] + suffix
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334
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335 def parse_node(self, block=False, indentless_sequence=False):
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336 # type: (bool, bool) -> Any
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337 if self.scanner.check_token(AliasToken):
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338 token = self.scanner.get_token()
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339 event = AliasEvent(token.value, token.start_mark, token.end_mark) # type: Any
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340 self.state = self.states.pop()
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341 return event
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342
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343 anchor = None
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344 tag = None
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345 start_mark = end_mark = tag_mark = None
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346 if self.scanner.check_token(AnchorToken):
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347 token = self.scanner.get_token()
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348 start_mark = token.start_mark
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349 end_mark = token.end_mark
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350 anchor = token.value
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351 if self.scanner.check_token(TagToken):
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352 token = self.scanner.get_token()
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353 tag_mark = token.start_mark
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354 end_mark = token.end_mark
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355 tag = token.value
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356 elif self.scanner.check_token(TagToken):
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357 token = self.scanner.get_token()
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358 start_mark = tag_mark = token.start_mark
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359 end_mark = token.end_mark
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360 tag = token.value
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361 if self.scanner.check_token(AnchorToken):
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362 token = self.scanner.get_token()
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363 start_mark = tag_mark = token.start_mark
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364 end_mark = token.end_mark
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365 anchor = token.value
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366 if tag is not None:
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367 handle, suffix = tag
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368 if handle is not None:
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369 if handle not in self.tag_handles:
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370 raise ParserError(
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371 'while parsing a node',
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372 start_mark,
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373 'found undefined tag handle %r' % utf8(handle),
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374 tag_mark,
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375 )
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376 tag = self.transform_tag(handle, suffix)
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377 else:
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378 tag = suffix
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379 # if tag == u'!':
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380 # raise ParserError("while parsing a node", start_mark,
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381 # "found non-specific tag '!'", tag_mark,
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diff changeset
382 # "Please check 'http://pyyaml.org/wiki/YAMLNonSpecificTag'
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parents:
diff changeset
383 # and share your opinion.")
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parents:
diff changeset
384 if start_mark is None:
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parents:
diff changeset
385 start_mark = end_mark = self.scanner.peek_token().start_mark
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parents:
diff changeset
386 event = None
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387 implicit = tag is None or tag == u'!'
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parents:
diff changeset
388 if indentless_sequence and self.scanner.check_token(BlockEntryToken):
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parents:
diff changeset
389 comment = None
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parents:
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390 pt = self.scanner.peek_token()
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parents:
diff changeset
391 if pt.comment and pt.comment[0]:
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parents:
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392 comment = [pt.comment[0], []]
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393 pt.comment[0] = None
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parents:
diff changeset
394 end_mark = self.scanner.peek_token().end_mark
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parents:
diff changeset
395 event = SequenceStartEvent(
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diff changeset
396 anchor, tag, implicit, start_mark, end_mark, flow_style=False, comment=comment
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397 )
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diff changeset
398 self.state = self.parse_indentless_sequence_entry
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parents:
diff changeset
399 return event
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parents:
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400
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parents:
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401 if self.scanner.check_token(ScalarToken):
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parents:
diff changeset
402 token = self.scanner.get_token()
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parents:
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403 # self.scanner.peek_token_same_line_comment(token)
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parents:
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404 end_mark = token.end_mark
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parents:
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405 if (token.plain and tag is None) or tag == u'!':
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parents:
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406 implicit = (True, False)
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parents:
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407 elif tag is None:
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408 implicit = (False, True)
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409 else:
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410 implicit = (False, False)
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411 # nprint('se', token.value, token.comment)
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412 event = ScalarEvent(
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413 anchor,
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parents:
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414 tag,
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parents:
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415 implicit,
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parents:
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416 token.value,
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parents:
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417 start_mark,
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parents:
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418 end_mark,
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parents:
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419 style=token.style,
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parents:
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420 comment=token.comment,
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parents:
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421 )
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422 self.state = self.states.pop()
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parents:
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423 elif self.scanner.check_token(FlowSequenceStartToken):
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424 pt = self.scanner.peek_token()
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425 end_mark = pt.end_mark
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parents:
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426 event = SequenceStartEvent(
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parents:
diff changeset
427 anchor,
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parents:
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428 tag,
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parents:
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429 implicit,
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parents:
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430 start_mark,
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431 end_mark,
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432 flow_style=True,
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433 comment=pt.comment,
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parents:
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434 )
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435 self.state = self.parse_flow_sequence_first_entry
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parents:
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436 elif self.scanner.check_token(FlowMappingStartToken):
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437 pt = self.scanner.peek_token()
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parents:
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438 end_mark = pt.end_mark
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parents:
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439 event = MappingStartEvent(
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parents:
diff changeset
440 anchor,
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parents:
diff changeset
441 tag,
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parents:
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442 implicit,
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parents:
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443 start_mark,
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parents:
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444 end_mark,
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parents:
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445 flow_style=True,
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446 comment=pt.comment,
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parents:
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447 )
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448 self.state = self.parse_flow_mapping_first_key
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parents:
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449 elif block and self.scanner.check_token(BlockSequenceStartToken):
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450 end_mark = self.scanner.peek_token().start_mark
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451 # should inserting the comment be dependent on the
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parents:
diff changeset
452 # indentation?
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453 pt = self.scanner.peek_token()
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parents:
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454 comment = pt.comment
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parents:
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455 # nprint('pt0', type(pt))
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parents:
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456 if comment is None or comment[1] is None:
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parents:
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457 comment = pt.split_comment()
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parents:
diff changeset
458 # nprint('pt1', comment)
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parents:
diff changeset
459 event = SequenceStartEvent(
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parents:
diff changeset
460 anchor, tag, implicit, start_mark, end_mark, flow_style=False, comment=comment
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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parents:
diff changeset
461 )
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diff changeset
462 self.state = self.parse_block_sequence_first_entry
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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parents:
diff changeset
463 elif block and self.scanner.check_token(BlockMappingStartToken):
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parents:
diff changeset
464 end_mark = self.scanner.peek_token().start_mark
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parents:
diff changeset
465 comment = self.scanner.peek_token().comment
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parents:
diff changeset
466 event = MappingStartEvent(
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parents:
diff changeset
467 anchor, tag, implicit, start_mark, end_mark, flow_style=False, comment=comment
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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parents:
diff changeset
468 )
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parents:
diff changeset
469 self.state = self.parse_block_mapping_first_key
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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parents:
diff changeset
470 elif anchor is not None or tag is not None:
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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parents:
diff changeset
471 # Empty scalars are allowed even if a tag or an anchor is
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parents:
diff changeset
472 # specified.
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parents:
diff changeset
473 event = ScalarEvent(anchor, tag, (implicit, False), "", start_mark, end_mark)
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parents:
diff changeset
474 self.state = self.states.pop()
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parents:
diff changeset
475 else:
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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parents:
diff changeset
476 if block:
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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parents:
diff changeset
477 node = 'block'
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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parents:
diff changeset
478 else:
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parents:
diff changeset
479 node = 'flow'
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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parents:
diff changeset
480 token = self.scanner.peek_token()
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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parents:
diff changeset
481 raise ParserError(
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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parents:
diff changeset
482 'while parsing a %s node' % node,
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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parents:
diff changeset
483 start_mark,
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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parents:
diff changeset
484 'expected the node content, but found %r' % token.id,
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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parents:
diff changeset
485 token.start_mark,
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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parents:
diff changeset
486 )
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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parents:
diff changeset
487 return event
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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parents:
diff changeset
488
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parents:
diff changeset
489 # block_sequence ::= BLOCK-SEQUENCE-START (BLOCK-ENTRY block_node?)*
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parents:
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490 # BLOCK-END
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parents:
diff changeset
491
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parents:
diff changeset
492 def parse_block_sequence_first_entry(self):
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parents:
diff changeset
493 # type: () -> Any
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diff changeset
494 token = self.scanner.get_token()
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parents:
diff changeset
495 # move any comment from start token
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parents:
diff changeset
496 # token.move_comment(self.scanner.peek_token())
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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parents:
diff changeset
497 self.marks.append(token.start_mark)
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parents:
diff changeset
498 return self.parse_block_sequence_entry()
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parents:
diff changeset
499
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parents:
diff changeset
500 def parse_block_sequence_entry(self):
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parents:
diff changeset
501 # type: () -> Any
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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parents:
diff changeset
502 if self.scanner.check_token(BlockEntryToken):
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parents:
diff changeset
503 token = self.scanner.get_token()
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parents:
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504 token.move_comment(self.scanner.peek_token())
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parents:
diff changeset
505 if not self.scanner.check_token(BlockEntryToken, BlockEndToken):
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parents:
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506 self.states.append(self.parse_block_sequence_entry)
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parents:
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507 return self.parse_block_node()
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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parents:
diff changeset
508 else:
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parents:
diff changeset
509 self.state = self.parse_block_sequence_entry
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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parents:
diff changeset
510 return self.process_empty_scalar(token.end_mark)
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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parents:
diff changeset
511 if not self.scanner.check_token(BlockEndToken):
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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parents:
diff changeset
512 token = self.scanner.peek_token()
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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parents:
diff changeset
513 raise ParserError(
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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parents:
diff changeset
514 'while parsing a block collection',
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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parents:
diff changeset
515 self.marks[-1],
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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parents:
diff changeset
516 'expected <block end>, but found %r' % token.id,
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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parents:
diff changeset
517 token.start_mark,
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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parents:
diff changeset
518 )
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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parents:
diff changeset
519 token = self.scanner.get_token() # BlockEndToken
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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parents:
diff changeset
520 event = SequenceEndEvent(token.start_mark, token.end_mark, comment=token.comment)
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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parents:
diff changeset
521 self.state = self.states.pop()
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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parents:
diff changeset
522 self.marks.pop()
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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parents:
diff changeset
523 return event
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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parents:
diff changeset
524
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parents:
diff changeset
525 # indentless_sequence ::= (BLOCK-ENTRY block_node?)+
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parents:
diff changeset
526
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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parents:
diff changeset
527 # indentless_sequence?
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parents:
diff changeset
528 # sequence:
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parents:
diff changeset
529 # - entry
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parents:
diff changeset
530 # - nested
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parents:
diff changeset
531
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parents:
diff changeset
532 def parse_indentless_sequence_entry(self):
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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parents:
diff changeset
533 # type: () -> Any
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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parents:
diff changeset
534 if self.scanner.check_token(BlockEntryToken):
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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parents:
diff changeset
535 token = self.scanner.get_token()
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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parents:
diff changeset
536 token.move_comment(self.scanner.peek_token())
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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parents:
diff changeset
537 if not self.scanner.check_token(
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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parents:
diff changeset
538 BlockEntryToken, KeyToken, ValueToken, BlockEndToken
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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parents:
diff changeset
539 ):
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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parents:
diff changeset
540 self.states.append(self.parse_indentless_sequence_entry)
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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parents:
diff changeset
541 return self.parse_block_node()
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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parents:
diff changeset
542 else:
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parents:
diff changeset
543 self.state = self.parse_indentless_sequence_entry
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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parents:
diff changeset
544 return self.process_empty_scalar(token.end_mark)
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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parents:
diff changeset
545 token = self.scanner.peek_token()
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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parents:
diff changeset
546 event = SequenceEndEvent(token.start_mark, token.start_mark, comment=token.comment)
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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parents:
diff changeset
547 self.state = self.states.pop()
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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parents:
diff changeset
548 return event
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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parents:
diff changeset
549
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parents:
diff changeset
550 # block_mapping ::= BLOCK-MAPPING_START
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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parents:
diff changeset
551 # ((KEY block_node_or_indentless_sequence?)?
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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parents:
diff changeset
552 # (VALUE block_node_or_indentless_sequence?)?)*
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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parents:
diff changeset
553 # BLOCK-END
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diff changeset
554
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parents:
diff changeset
555 def parse_block_mapping_first_key(self):
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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parents:
diff changeset
556 # type: () -> Any
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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parents:
diff changeset
557 token = self.scanner.get_token()
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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parents:
diff changeset
558 self.marks.append(token.start_mark)
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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parents:
diff changeset
559 return self.parse_block_mapping_key()
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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parents:
diff changeset
560
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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parents:
diff changeset
561 def parse_block_mapping_key(self):
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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parents:
diff changeset
562 # type: () -> Any
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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parents:
diff changeset
563 if self.scanner.check_token(KeyToken):
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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parents:
diff changeset
564 token = self.scanner.get_token()
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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parents:
diff changeset
565 token.move_comment(self.scanner.peek_token())
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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parents:
diff changeset
566 if not self.scanner.check_token(KeyToken, ValueToken, BlockEndToken):
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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parents:
diff changeset
567 self.states.append(self.parse_block_mapping_value)
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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parents:
diff changeset
568 return self.parse_block_node_or_indentless_sequence()
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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parents:
diff changeset
569 else:
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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diff changeset
570 self.state = self.parse_block_mapping_value
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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parents:
diff changeset
571 return self.process_empty_scalar(token.end_mark)
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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parents:
diff changeset
572 if self.resolver.processing_version > (1, 1) and self.scanner.check_token(ValueToken):
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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parents:
diff changeset
573 self.state = self.parse_block_mapping_value
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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parents:
diff changeset
574 return self.process_empty_scalar(self.scanner.peek_token().start_mark)
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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parents:
diff changeset
575 if not self.scanner.check_token(BlockEndToken):
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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parents:
diff changeset
576 token = self.scanner.peek_token()
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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parents:
diff changeset
577 raise ParserError(
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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parents:
diff changeset
578 'while parsing a block mapping',
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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parents:
diff changeset
579 self.marks[-1],
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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parents:
diff changeset
580 'expected <block end>, but found %r' % token.id,
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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parents:
diff changeset
581 token.start_mark,
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
582 )
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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parents:
diff changeset
583 token = self.scanner.get_token()
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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parents:
diff changeset
584 token.move_comment(self.scanner.peek_token())
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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parents:
diff changeset
585 event = MappingEndEvent(token.start_mark, token.end_mark, comment=token.comment)
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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parents:
diff changeset
586 self.state = self.states.pop()
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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parents:
diff changeset
587 self.marks.pop()
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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parents:
diff changeset
588 return event
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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parents:
diff changeset
589
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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parents:
diff changeset
590 def parse_block_mapping_value(self):
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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parents:
diff changeset
591 # type: () -> Any
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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parents:
diff changeset
592 if self.scanner.check_token(ValueToken):
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
593 token = self.scanner.get_token()
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
594 # value token might have post comment move it to e.g. block
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
595 if self.scanner.check_token(ValueToken):
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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parents:
diff changeset
596 token.move_comment(self.scanner.peek_token())
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parents:
diff changeset
597 else:
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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parents:
diff changeset
598 if not self.scanner.check_token(KeyToken):
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
599 token.move_comment(self.scanner.peek_token(), empty=True)
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
600 # else: empty value for this key cannot move token.comment
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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parents:
diff changeset
601 if not self.scanner.check_token(KeyToken, ValueToken, BlockEndToken):
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
602 self.states.append(self.parse_block_mapping_key)
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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parents:
diff changeset
603 return self.parse_block_node_or_indentless_sequence()
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
604 else:
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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parents:
diff changeset
605 self.state = self.parse_block_mapping_key
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parents:
diff changeset
606 comment = token.comment
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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parents:
diff changeset
607 if comment is None:
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
608 token = self.scanner.peek_token()
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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parents:
diff changeset
609 comment = token.comment
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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parents:
diff changeset
610 if comment:
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parents:
diff changeset
611 token._comment = [None, comment[1]]
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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parents:
diff changeset
612 comment = [comment[0], None]
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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parents:
diff changeset
613 return self.process_empty_scalar(token.end_mark, comment=comment)
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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parents:
diff changeset
614 else:
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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parents:
diff changeset
615 self.state = self.parse_block_mapping_key
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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parents:
diff changeset
616 token = self.scanner.peek_token()
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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parents:
diff changeset
617 return self.process_empty_scalar(token.start_mark)
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parents:
diff changeset
618
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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parents:
diff changeset
619 # flow_sequence ::= FLOW-SEQUENCE-START
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parents:
diff changeset
620 # (flow_sequence_entry FLOW-ENTRY)*
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parents:
diff changeset
621 # flow_sequence_entry?
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parents:
diff changeset
622 # FLOW-SEQUENCE-END
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parents:
diff changeset
623 # flow_sequence_entry ::= flow_node | KEY flow_node? (VALUE flow_node?)?
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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parents:
diff changeset
624 #
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parents:
diff changeset
625 # Note that while production rules for both flow_sequence_entry and
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
626 # flow_mapping_entry are equal, their interpretations are different.
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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parents:
diff changeset
627 # For `flow_sequence_entry`, the part `KEY flow_node? (VALUE flow_node?)?`
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parents:
diff changeset
628 # generate an inline mapping (set syntax).
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parents:
diff changeset
629
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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parents:
diff changeset
630 def parse_flow_sequence_first_entry(self):
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shellac
parents:
diff changeset
631 # type: () -> Any
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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parents:
diff changeset
632 token = self.scanner.get_token()
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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parents:
diff changeset
633 self.marks.append(token.start_mark)
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
634 return self.parse_flow_sequence_entry(first=True)
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
635
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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parents:
diff changeset
636 def parse_flow_sequence_entry(self, first=False):
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
637 # type: (bool) -> Any
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
638 if not self.scanner.check_token(FlowSequenceEndToken):
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
639 if not first:
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
640 if self.scanner.check_token(FlowEntryToken):
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
641 self.scanner.get_token()
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
642 else:
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
643 token = self.scanner.peek_token()
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
644 raise ParserError(
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
645 'while parsing a flow sequence',
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
646 self.marks[-1],
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
647 "expected ',' or ']', but got %r" % token.id,
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
648 token.start_mark,
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
649 )
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
650
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
651 if self.scanner.check_token(KeyToken):
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
652 token = self.scanner.peek_token()
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
653 event = MappingStartEvent(
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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parents:
diff changeset
654 None, None, True, token.start_mark, token.end_mark, flow_style=True
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
655 ) # type: Any
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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parents:
diff changeset
656 self.state = self.parse_flow_sequence_entry_mapping_key
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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parents:
diff changeset
657 return event
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
658 elif not self.scanner.check_token(FlowSequenceEndToken):
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
659 self.states.append(self.parse_flow_sequence_entry)
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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parents:
diff changeset
660 return self.parse_flow_node()
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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parents:
diff changeset
661 token = self.scanner.get_token()
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
662 event = SequenceEndEvent(token.start_mark, token.end_mark, comment=token.comment)
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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parents:
diff changeset
663 self.state = self.states.pop()
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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parents:
diff changeset
664 self.marks.pop()
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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parents:
diff changeset
665 return event
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
666
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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parents:
diff changeset
667 def parse_flow_sequence_entry_mapping_key(self):
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
668 # type: () -> Any
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
669 token = self.scanner.get_token()
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
670 if not self.scanner.check_token(ValueToken, FlowEntryToken, FlowSequenceEndToken):
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
671 self.states.append(self.parse_flow_sequence_entry_mapping_value)
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
672 return self.parse_flow_node()
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
673 else:
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
674 self.state = self.parse_flow_sequence_entry_mapping_value
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
675 return self.process_empty_scalar(token.end_mark)
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
676
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
677 def parse_flow_sequence_entry_mapping_value(self):
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
678 # type: () -> Any
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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parents:
diff changeset
679 if self.scanner.check_token(ValueToken):
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
680 token = self.scanner.get_token()
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
681 if not self.scanner.check_token(FlowEntryToken, FlowSequenceEndToken):
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
682 self.states.append(self.parse_flow_sequence_entry_mapping_end)
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
683 return self.parse_flow_node()
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
684 else:
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
685 self.state = self.parse_flow_sequence_entry_mapping_end
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
686 return self.process_empty_scalar(token.end_mark)
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
687 else:
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
688 self.state = self.parse_flow_sequence_entry_mapping_end
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
689 token = self.scanner.peek_token()
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
690 return self.process_empty_scalar(token.start_mark)
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
691
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
692 def parse_flow_sequence_entry_mapping_end(self):
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
693 # type: () -> Any
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
694 self.state = self.parse_flow_sequence_entry
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
695 token = self.scanner.peek_token()
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
696 return MappingEndEvent(token.start_mark, token.start_mark)
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
697
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
698 # flow_mapping ::= FLOW-MAPPING-START
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
699 # (flow_mapping_entry FLOW-ENTRY)*
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
700 # flow_mapping_entry?
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
701 # FLOW-MAPPING-END
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
702 # flow_mapping_entry ::= flow_node | KEY flow_node? (VALUE flow_node?)?
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
703
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
704 def parse_flow_mapping_first_key(self):
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
705 # type: () -> Any
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
706 token = self.scanner.get_token()
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
707 self.marks.append(token.start_mark)
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
708 return self.parse_flow_mapping_key(first=True)
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
709
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
710 def parse_flow_mapping_key(self, first=False):
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
711 # type: (Any) -> Any
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
712 if not self.scanner.check_token(FlowMappingEndToken):
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
713 if not first:
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
714 if self.scanner.check_token(FlowEntryToken):
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
715 self.scanner.get_token()
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
716 else:
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
717 token = self.scanner.peek_token()
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
718 raise ParserError(
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
719 'while parsing a flow mapping',
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
720 self.marks[-1],
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
721 "expected ',' or '}', but got %r" % token.id,
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
722 token.start_mark,
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
723 )
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
724 if self.scanner.check_token(KeyToken):
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
725 token = self.scanner.get_token()
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
726 if not self.scanner.check_token(
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
727 ValueToken, FlowEntryToken, FlowMappingEndToken
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
728 ):
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
729 self.states.append(self.parse_flow_mapping_value)
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
730 return self.parse_flow_node()
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
731 else:
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
732 self.state = self.parse_flow_mapping_value
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
733 return self.process_empty_scalar(token.end_mark)
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
734 elif self.resolver.processing_version > (1, 1) and self.scanner.check_token(
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
735 ValueToken
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
736 ):
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
737 self.state = self.parse_flow_mapping_value
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
738 return self.process_empty_scalar(self.scanner.peek_token().end_mark)
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
739 elif not self.scanner.check_token(FlowMappingEndToken):
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
740 self.states.append(self.parse_flow_mapping_empty_value)
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
741 return self.parse_flow_node()
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
742 token = self.scanner.get_token()
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
743 event = MappingEndEvent(token.start_mark, token.end_mark, comment=token.comment)
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
744 self.state = self.states.pop()
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
745 self.marks.pop()
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
746 return event
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
747
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
748 def parse_flow_mapping_value(self):
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
749 # type: () -> Any
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
750 if self.scanner.check_token(ValueToken):
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
751 token = self.scanner.get_token()
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
752 if not self.scanner.check_token(FlowEntryToken, FlowMappingEndToken):
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
753 self.states.append(self.parse_flow_mapping_key)
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
754 return self.parse_flow_node()
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
755 else:
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
756 self.state = self.parse_flow_mapping_key
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
757 return self.process_empty_scalar(token.end_mark)
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
758 else:
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
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759 self.state = self.parse_flow_mapping_key
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760 token = self.scanner.peek_token()
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761 return self.process_empty_scalar(token.start_mark)
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762
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763 def parse_flow_mapping_empty_value(self):
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764 # type: () -> Any
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765 self.state = self.parse_flow_mapping_key
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766 return self.process_empty_scalar(self.scanner.peek_token().start_mark)
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767
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768 def process_empty_scalar(self, mark, comment=None):
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769 # type: (Any, Any) -> Any
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770 return ScalarEvent(None, None, (True, False), "", mark, mark, comment=comment)
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771
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772
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773 class RoundTripParser(Parser):
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774 """roundtrip is a safe loader, that wants to see the unmangled tag"""
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775
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776 def transform_tag(self, handle, suffix):
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777 # type: (Any, Any) -> Any
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778 # return self.tag_handles[handle]+suffix
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779 if handle == '!!' and suffix in (
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780 u'null',
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781 u'bool',
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782 u'int',
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783 u'float',
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784 u'binary',
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785 u'timestamp',
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786 u'omap',
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787 u'pairs',
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788 u'set',
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789 u'str',
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790 u'seq',
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791 u'map',
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792 ):
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793 return Parser.transform_tag(self, handle, suffix)
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794 return handle + suffix