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package yaml |
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import ( |
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"bytes" |
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) |
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// The parser implements the following grammar: |
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// |
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// stream ::= STREAM-START implicit_document? explicit_document* STREAM-END |
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// implicit_document ::= block_node DOCUMENT-END* |
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// explicit_document ::= DIRECTIVE* DOCUMENT-START block_node? DOCUMENT-END* |
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// block_node_or_indentless_sequence ::= |
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// ALIAS |
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// | properties (block_content | indentless_block_sequence)? |
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// | block_content |
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// | indentless_block_sequence |
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// block_node ::= ALIAS |
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// | properties block_content? |
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// | block_content |
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// flow_node ::= ALIAS |
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// | properties flow_content? |
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// | flow_content |
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// properties ::= TAG ANCHOR? | ANCHOR TAG? |
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// block_content ::= block_collection | flow_collection | SCALAR |
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// flow_content ::= flow_collection | SCALAR |
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// block_collection ::= block_sequence | block_mapping |
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// flow_collection ::= flow_sequence | flow_mapping |
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// block_sequence ::= BLOCK-SEQUENCE-START (BLOCK-ENTRY block_node?)* BLOCK-END |
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// indentless_sequence ::= (BLOCK-ENTRY block_node?)+ |
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// block_mapping ::= BLOCK-MAPPING_START |
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// ((KEY block_node_or_indentless_sequence?)? |
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// (VALUE block_node_or_indentless_sequence?)?)* |
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// BLOCK-END |
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// flow_sequence ::= FLOW-SEQUENCE-START |
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// (flow_sequence_entry FLOW-ENTRY)* |
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// flow_sequence_entry? |
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// FLOW-SEQUENCE-END |
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// flow_sequence_entry ::= flow_node | KEY flow_node? (VALUE flow_node?)? |
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// flow_mapping ::= FLOW-MAPPING-START |
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// (flow_mapping_entry FLOW-ENTRY)* |
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// flow_mapping_entry? |
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// FLOW-MAPPING-END |
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// flow_mapping_entry ::= flow_node | KEY flow_node? (VALUE flow_node?)? |
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// Peek the next token in the token queue. |
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func peek_token(parser *yaml_parser_t) *yaml_token_t { |
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if parser.token_available || yaml_parser_fetch_more_tokens(parser) { |
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return &parser.tokens[parser.tokens_head] |
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} |
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return nil |
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} |
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// Remove the next token from the queue (must be called after peek_token). |
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func skip_token(parser *yaml_parser_t) { |
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parser.token_available = false |
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parser.tokens_parsed++ |
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parser.stream_end_produced = parser.tokens[parser.tokens_head].typ == yaml_STREAM_END_TOKEN |
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parser.tokens_head++ |
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} |
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// Get the next event. |
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func yaml_parser_parse(parser *yaml_parser_t, event *yaml_event_t) bool { |
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// Erase the event object. |
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*event = yaml_event_t{} |
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// No events after the end of the stream or error. |
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if parser.stream_end_produced || parser.error != yaml_NO_ERROR || parser.state == yaml_PARSE_END_STATE { |
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return true |
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} |
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// Generate the next event. |
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return yaml_parser_state_machine(parser, event) |
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} |
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// Set parser error. |
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func yaml_parser_set_parser_error(parser *yaml_parser_t, problem string, problem_mark yaml_mark_t) bool { |
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parser.error = yaml_PARSER_ERROR |
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parser.problem = problem |
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parser.problem_mark = problem_mark |
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return false |
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} |
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func yaml_parser_set_parser_error_context(parser *yaml_parser_t, context string, context_mark yaml_mark_t, problem string, problem_mark yaml_mark_t) bool { |
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parser.error = yaml_PARSER_ERROR |
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parser.context = context |
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parser.context_mark = context_mark |
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parser.problem = problem |
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parser.problem_mark = problem_mark |
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return false |
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} |
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// State dispatcher. |
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func yaml_parser_state_machine(parser *yaml_parser_t, event *yaml_event_t) bool { |
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//trace("yaml_parser_state_machine", "state:", parser.state.String()) |
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switch parser.state { |
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case yaml_PARSE_STREAM_START_STATE: |
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return yaml_parser_parse_stream_start(parser, event) |
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case yaml_PARSE_IMPLICIT_DOCUMENT_START_STATE: |
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return yaml_parser_parse_document_start(parser, event, true) |
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case yaml_PARSE_DOCUMENT_START_STATE: |
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return yaml_parser_parse_document_start(parser, event, false) |
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case yaml_PARSE_DOCUMENT_CONTENT_STATE: |
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return yaml_parser_parse_document_content(parser, event) |
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case yaml_PARSE_DOCUMENT_END_STATE: |
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return yaml_parser_parse_document_end(parser, event) |
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case yaml_PARSE_BLOCK_NODE_STATE: |
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return yaml_parser_parse_node(parser, event, true, false) |
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case yaml_PARSE_BLOCK_NODE_OR_INDENTLESS_SEQUENCE_STATE: |
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return yaml_parser_parse_node(parser, event, true, true) |
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case yaml_PARSE_FLOW_NODE_STATE: |
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return yaml_parser_parse_node(parser, event, false, false) |
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case yaml_PARSE_BLOCK_SEQUENCE_FIRST_ENTRY_STATE: |
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return yaml_parser_parse_block_sequence_entry(parser, event, true) |
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case yaml_PARSE_BLOCK_SEQUENCE_ENTRY_STATE: |
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return yaml_parser_parse_block_sequence_entry(parser, event, false) |
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case yaml_PARSE_INDENTLESS_SEQUENCE_ENTRY_STATE: |
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return yaml_parser_parse_indentless_sequence_entry(parser, event) |
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case yaml_PARSE_BLOCK_MAPPING_FIRST_KEY_STATE: |
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return yaml_parser_parse_block_mapping_key(parser, event, true) |
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case yaml_PARSE_BLOCK_MAPPING_KEY_STATE: |
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return yaml_parser_parse_block_mapping_key(parser, event, false) |
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case yaml_PARSE_BLOCK_MAPPING_VALUE_STATE: |
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return yaml_parser_parse_block_mapping_value(parser, event) |
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case yaml_PARSE_FLOW_SEQUENCE_FIRST_ENTRY_STATE: |
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return yaml_parser_parse_flow_sequence_entry(parser, event, true) |
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case yaml_PARSE_FLOW_SEQUENCE_ENTRY_STATE: |
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return yaml_parser_parse_flow_sequence_entry(parser, event, false) |
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case yaml_PARSE_FLOW_SEQUENCE_ENTRY_MAPPING_KEY_STATE: |
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return yaml_parser_parse_flow_sequence_entry_mapping_key(parser, event) |
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case yaml_PARSE_FLOW_SEQUENCE_ENTRY_MAPPING_VALUE_STATE: |
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return yaml_parser_parse_flow_sequence_entry_mapping_value(parser, event) |
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case yaml_PARSE_FLOW_SEQUENCE_ENTRY_MAPPING_END_STATE: |
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return yaml_parser_parse_flow_sequence_entry_mapping_end(parser, event) |
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case yaml_PARSE_FLOW_MAPPING_FIRST_KEY_STATE: |
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return yaml_parser_parse_flow_mapping_key(parser, event, true) |
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case yaml_PARSE_FLOW_MAPPING_KEY_STATE: |
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return yaml_parser_parse_flow_mapping_key(parser, event, false) |
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case yaml_PARSE_FLOW_MAPPING_VALUE_STATE: |
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return yaml_parser_parse_flow_mapping_value(parser, event, false) |
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case yaml_PARSE_FLOW_MAPPING_EMPTY_VALUE_STATE: |
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return yaml_parser_parse_flow_mapping_value(parser, event, true) |
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default: |
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panic("invalid parser state") |
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} |
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} |
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// Parse the production: |
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// stream ::= STREAM-START implicit_document? explicit_document* STREAM-END |
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// ************ |
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func yaml_parser_parse_stream_start(parser *yaml_parser_t, event *yaml_event_t) bool { |
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token := peek_token(parser) |
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if token == nil { |
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return false |
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} |
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if token.typ != yaml_STREAM_START_TOKEN { |
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return yaml_parser_set_parser_error(parser, "did not find expected <stream-start>", token.start_mark) |
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} |
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parser.state = yaml_PARSE_IMPLICIT_DOCUMENT_START_STATE |
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*event = yaml_event_t{ |
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typ: yaml_STREAM_START_EVENT, |
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start_mark: token.start_mark, |
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end_mark: token.end_mark, |
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encoding: token.encoding, |
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} |
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skip_token(parser) |
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return true |
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} |
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// Parse the productions: |
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// implicit_document ::= block_node DOCUMENT-END* |
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// * |
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// explicit_document ::= DIRECTIVE* DOCUMENT-START block_node? DOCUMENT-END* |
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// ************************* |
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func yaml_parser_parse_document_start(parser *yaml_parser_t, event *yaml_event_t, implicit bool) bool { |
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token := peek_token(parser) |
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if token == nil { |
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return false |
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} |
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// Parse extra document end indicators. |
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if !implicit { |
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for token.typ == yaml_DOCUMENT_END_TOKEN { |
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skip_token(parser) |
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token = peek_token(parser) |
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if token == nil { |
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return false |
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} |
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} |
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} |
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if implicit && token.typ != yaml_VERSION_DIRECTIVE_TOKEN && |
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token.typ != yaml_TAG_DIRECTIVE_TOKEN && |
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token.typ != yaml_DOCUMENT_START_TOKEN && |
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token.typ != yaml_STREAM_END_TOKEN { |
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// Parse an implicit document. |
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if !yaml_parser_process_directives(parser, nil, nil) { |
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return false |
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} |
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parser.states = append(parser.states, yaml_PARSE_DOCUMENT_END_STATE) |
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parser.state = yaml_PARSE_BLOCK_NODE_STATE |
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*event = yaml_event_t{ |
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typ: yaml_DOCUMENT_START_EVENT, |
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start_mark: token.start_mark, |
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end_mark: token.end_mark, |
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} |
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} else if token.typ != yaml_STREAM_END_TOKEN { |
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// Parse an explicit document. |
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var version_directive *yaml_version_directive_t |
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var tag_directives []yaml_tag_directive_t |
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start_mark := token.start_mark |
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if !yaml_parser_process_directives(parser, &version_directive, &tag_directives) { |
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return false |
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} |
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token = peek_token(parser) |
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if token == nil { |
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return false |
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} |
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if token.typ != yaml_DOCUMENT_START_TOKEN { |
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yaml_parser_set_parser_error(parser, |
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"did not find expected <document start>", token.start_mark) |
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return false |
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} |
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parser.states = append(parser.states, yaml_PARSE_DOCUMENT_END_STATE) |
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parser.state = yaml_PARSE_DOCUMENT_CONTENT_STATE |
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end_mark := token.end_mark |
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*event = yaml_event_t{ |
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typ: yaml_DOCUMENT_START_EVENT, |
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start_mark: start_mark, |
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end_mark: end_mark, |
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version_directive: version_directive, |
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tag_directives: tag_directives, |
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implicit: false, |
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} |
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skip_token(parser) |
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} else { |
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// Parse the stream end. |
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parser.state = yaml_PARSE_END_STATE |
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*event = yaml_event_t{ |
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typ: yaml_STREAM_END_EVENT, |
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start_mark: token.start_mark, |
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end_mark: token.end_mark, |
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} |
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skip_token(parser) |
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} |
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return true |
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} |
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// Parse the productions: |
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// explicit_document ::= DIRECTIVE* DOCUMENT-START block_node? DOCUMENT-END* |
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// *********** |
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// |
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func yaml_parser_parse_document_content(parser *yaml_parser_t, event *yaml_event_t) bool { |
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token := peek_token(parser) |
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if token == nil { |
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return false |
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} |
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if token.typ == yaml_VERSION_DIRECTIVE_TOKEN || |
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token.typ == yaml_TAG_DIRECTIVE_TOKEN || |
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token.typ == yaml_DOCUMENT_START_TOKEN || |
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token.typ == yaml_DOCUMENT_END_TOKEN || |
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token.typ == yaml_STREAM_END_TOKEN { |
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parser.state = parser.states[len(parser.states)-1] |
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parser.states = parser.states[:len(parser.states)-1] |
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return yaml_parser_process_empty_scalar(parser, event, |
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295
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token.start_mark) |
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296
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} |
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297
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return yaml_parser_parse_node(parser, event, true, false) |
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} |
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299
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300
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// Parse the productions: |
|
301
|
|
|
// implicit_document ::= block_node DOCUMENT-END* |
|
302
|
|
|
// ************* |
|
303
|
|
|
// explicit_document ::= DIRECTIVE* DOCUMENT-START block_node? DOCUMENT-END* |
|
304
|
|
|
// |
|
305
|
|
|
func yaml_parser_parse_document_end(parser *yaml_parser_t, event *yaml_event_t) bool { |
|
306
|
|
|
token := peek_token(parser) |
|
307
|
|
|
if token == nil { |
|
308
|
|
|
return false |
|
309
|
|
|
} |
|
310
|
|
|
|
|
311
|
|
|
start_mark := token.start_mark |
|
312
|
|
|
end_mark := token.start_mark |
|
313
|
|
|
|
|
314
|
|
|
implicit := true |
|
315
|
|
|
if token.typ == yaml_DOCUMENT_END_TOKEN { |
|
316
|
|
|
end_mark = token.end_mark |
|
317
|
|
|
skip_token(parser) |
|
318
|
|
|
implicit = false |
|
319
|
|
|
} |
|
320
|
|
|
|
|
321
|
|
|
parser.tag_directives = parser.tag_directives[:0] |
|
322
|
|
|
|
|
323
|
|
|
parser.state = yaml_PARSE_DOCUMENT_START_STATE |
|
324
|
|
|
*event = yaml_event_t{ |
|
325
|
|
|
typ: yaml_DOCUMENT_END_EVENT, |
|
326
|
|
|
start_mark: start_mark, |
|
327
|
|
|
end_mark: end_mark, |
|
328
|
|
|
implicit: implicit, |
|
329
|
|
|
} |
|
330
|
|
|
return true |
|
331
|
|
|
} |
|
332
|
|
|
|
|
333
|
|
|
// Parse the productions: |
|
334
|
|
|
// block_node_or_indentless_sequence ::= |
|
335
|
|
|
// ALIAS |
|
336
|
|
|
// ***** |
|
337
|
|
|
// | properties (block_content | indentless_block_sequence)? |
|
338
|
|
|
// ********** * |
|
339
|
|
|
// | block_content | indentless_block_sequence |
|
340
|
|
|
// * |
|
341
|
|
|
// block_node ::= ALIAS |
|
342
|
|
|
// ***** |
|
343
|
|
|
// | properties block_content? |
|
344
|
|
|
// ********** * |
|
345
|
|
|
// | block_content |
|
346
|
|
|
// * |
|
347
|
|
|
// flow_node ::= ALIAS |
|
348
|
|
|
// ***** |
|
349
|
|
|
// | properties flow_content? |
|
350
|
|
|
// ********** * |
|
351
|
|
|
// | flow_content |
|
352
|
|
|
// * |
|
353
|
|
|
// properties ::= TAG ANCHOR? | ANCHOR TAG? |
|
354
|
|
|
// ************************* |
|
355
|
|
|
// block_content ::= block_collection | flow_collection | SCALAR |
|
356
|
|
|
// ****** |
|
357
|
|
|
// flow_content ::= flow_collection | SCALAR |
|
358
|
|
|
// ****** |
|
359
|
|
|
func yaml_parser_parse_node(parser *yaml_parser_t, event *yaml_event_t, block, indentless_sequence bool) bool { |
|
360
|
|
|
//defer trace("yaml_parser_parse_node", "block:", block, "indentless_sequence:", indentless_sequence)() |
|
361
|
|
|
|
|
362
|
|
|
token := peek_token(parser) |
|
363
|
|
|
if token == nil { |
|
364
|
|
|
return false |
|
365
|
|
|
} |
|
366
|
|
|
|
|
367
|
|
|
if token.typ == yaml_ALIAS_TOKEN { |
|
368
|
|
|
parser.state = parser.states[len(parser.states)-1] |
|
369
|
|
|
parser.states = parser.states[:len(parser.states)-1] |
|
370
|
|
|
*event = yaml_event_t{ |
|
371
|
|
|
typ: yaml_ALIAS_EVENT, |
|
372
|
|
|
start_mark: token.start_mark, |
|
373
|
|
|
end_mark: token.end_mark, |
|
374
|
|
|
anchor: token.value, |
|
375
|
|
|
} |
|
376
|
|
|
skip_token(parser) |
|
377
|
|
|
return true |
|
378
|
|
|
} |
|
379
|
|
|
|
|
380
|
|
|
start_mark := token.start_mark |
|
381
|
|
|
end_mark := token.start_mark |
|
382
|
|
|
|
|
383
|
|
|
var tag_token bool |
|
384
|
|
|
var tag_handle, tag_suffix, anchor []byte |
|
385
|
|
|
var tag_mark yaml_mark_t |
|
386
|
|
|
if token.typ == yaml_ANCHOR_TOKEN { |
|
387
|
|
|
anchor = token.value |
|
388
|
|
|
start_mark = token.start_mark |
|
389
|
|
|
end_mark = token.end_mark |
|
390
|
|
|
skip_token(parser) |
|
391
|
|
|
token = peek_token(parser) |
|
392
|
|
|
if token == nil { |
|
393
|
|
|
return false |
|
394
|
|
|
} |
|
395
|
|
|
if token.typ == yaml_TAG_TOKEN { |
|
396
|
|
|
tag_token = true |
|
397
|
|
|
tag_handle = token.value |
|
398
|
|
|
tag_suffix = token.suffix |
|
399
|
|
|
tag_mark = token.start_mark |
|
400
|
|
|
end_mark = token.end_mark |
|
401
|
|
|
skip_token(parser) |
|
402
|
|
|
token = peek_token(parser) |
|
403
|
|
|
if token == nil { |
|
404
|
|
|
return false |
|
405
|
|
|
} |
|
406
|
|
|
} |
|
407
|
|
|
} else if token.typ == yaml_TAG_TOKEN { |
|
408
|
|
|
tag_token = true |
|
409
|
|
|
tag_handle = token.value |
|
410
|
|
|
tag_suffix = token.suffix |
|
411
|
|
|
start_mark = token.start_mark |
|
412
|
|
|
tag_mark = token.start_mark |
|
413
|
|
|
end_mark = token.end_mark |
|
414
|
|
|
skip_token(parser) |
|
415
|
|
|
token = peek_token(parser) |
|
416
|
|
|
if token == nil { |
|
417
|
|
|
return false |
|
418
|
|
|
} |
|
419
|
|
|
if token.typ == yaml_ANCHOR_TOKEN { |
|
420
|
|
|
anchor = token.value |
|
421
|
|
|
end_mark = token.end_mark |
|
422
|
|
|
skip_token(parser) |
|
423
|
|
|
token = peek_token(parser) |
|
424
|
|
|
if token == nil { |
|
425
|
|
|
return false |
|
426
|
|
|
} |
|
427
|
|
|
} |
|
428
|
|
|
} |
|
429
|
|
|
|
|
430
|
|
|
var tag []byte |
|
431
|
|
|
if tag_token { |
|
432
|
|
|
if len(tag_handle) == 0 { |
|
433
|
|
|
tag = tag_suffix |
|
434
|
|
|
tag_suffix = nil |
|
435
|
|
|
} else { |
|
436
|
|
|
for i := range parser.tag_directives { |
|
437
|
|
|
if bytes.Equal(parser.tag_directives[i].handle, tag_handle) { |
|
438
|
|
|
tag = append([]byte(nil), parser.tag_directives[i].prefix...) |
|
439
|
|
|
tag = append(tag, tag_suffix...) |
|
440
|
|
|
break |
|
441
|
|
|
} |
|
442
|
|
|
} |
|
443
|
|
|
if len(tag) == 0 { |
|
444
|
|
|
yaml_parser_set_parser_error_context(parser, |
|
445
|
|
|
"while parsing a node", start_mark, |
|
446
|
|
|
"found undefined tag handle", tag_mark) |
|
447
|
|
|
return false |
|
448
|
|
|
} |
|
449
|
|
|
} |
|
450
|
|
|
} |
|
451
|
|
|
|
|
452
|
|
|
implicit := len(tag) == 0 |
|
453
|
|
|
if indentless_sequence && token.typ == yaml_BLOCK_ENTRY_TOKEN { |
|
454
|
|
|
end_mark = token.end_mark |
|
455
|
|
|
parser.state = yaml_PARSE_INDENTLESS_SEQUENCE_ENTRY_STATE |
|
456
|
|
|
*event = yaml_event_t{ |
|
457
|
|
|
typ: yaml_SEQUENCE_START_EVENT, |
|
458
|
|
|
start_mark: start_mark, |
|
459
|
|
|
end_mark: end_mark, |
|
460
|
|
|
anchor: anchor, |
|
461
|
|
|
tag: tag, |
|
462
|
|
|
implicit: implicit, |
|
463
|
|
|
style: yaml_style_t(yaml_BLOCK_SEQUENCE_STYLE), |
|
464
|
|
|
} |
|
465
|
|
|
return true |
|
466
|
|
|
} |
|
467
|
|
|
if token.typ == yaml_SCALAR_TOKEN { |
|
468
|
|
|
var plain_implicit, quoted_implicit bool |
|
469
|
|
|
end_mark = token.end_mark |
|
470
|
|
|
if (len(tag) == 0 && token.style == yaml_PLAIN_SCALAR_STYLE) || (len(tag) == 1 && tag[0] == '!') { |
|
471
|
|
|
plain_implicit = true |
|
472
|
|
|
} else if len(tag) == 0 { |
|
473
|
|
|
quoted_implicit = true |
|
474
|
|
|
} |
|
475
|
|
|
parser.state = parser.states[len(parser.states)-1] |
|
476
|
|
|
parser.states = parser.states[:len(parser.states)-1] |
|
477
|
|
|
|
|
478
|
|
|
*event = yaml_event_t{ |
|
479
|
|
|
typ: yaml_SCALAR_EVENT, |
|
480
|
|
|
start_mark: start_mark, |
|
481
|
|
|
end_mark: end_mark, |
|
482
|
|
|
anchor: anchor, |
|
483
|
|
|
tag: tag, |
|
484
|
|
|
value: token.value, |
|
485
|
|
|
implicit: plain_implicit, |
|
486
|
|
|
quoted_implicit: quoted_implicit, |
|
487
|
|
|
style: yaml_style_t(token.style), |
|
488
|
|
|
} |
|
489
|
|
|
skip_token(parser) |
|
490
|
|
|
return true |
|
491
|
|
|
} |
|
492
|
|
|
if token.typ == yaml_FLOW_SEQUENCE_START_TOKEN { |
|
493
|
|
|
// [Go] Some of the events below can be merged as they differ only on style. |
|
494
|
|
|
end_mark = token.end_mark |
|
495
|
|
|
parser.state = yaml_PARSE_FLOW_SEQUENCE_FIRST_ENTRY_STATE |
|
496
|
|
|
*event = yaml_event_t{ |
|
497
|
|
|
typ: yaml_SEQUENCE_START_EVENT, |
|
498
|
|
|
start_mark: start_mark, |
|
499
|
|
|
end_mark: end_mark, |
|
500
|
|
|
anchor: anchor, |
|
501
|
|
|
tag: tag, |
|
502
|
|
|
implicit: implicit, |
|
503
|
|
|
style: yaml_style_t(yaml_FLOW_SEQUENCE_STYLE), |
|
504
|
|
|
} |
|
505
|
|
|
return true |
|
506
|
|
|
} |
|
507
|
|
|
if token.typ == yaml_FLOW_MAPPING_START_TOKEN { |
|
508
|
|
|
end_mark = token.end_mark |
|
509
|
|
|
parser.state = yaml_PARSE_FLOW_MAPPING_FIRST_KEY_STATE |
|
510
|
|
|
*event = yaml_event_t{ |
|
511
|
|
|
typ: yaml_MAPPING_START_EVENT, |
|
512
|
|
|
start_mark: start_mark, |
|
513
|
|
|
end_mark: end_mark, |
|
514
|
|
|
anchor: anchor, |
|
515
|
|
|
tag: tag, |
|
516
|
|
|
implicit: implicit, |
|
517
|
|
|
style: yaml_style_t(yaml_FLOW_MAPPING_STYLE), |
|
518
|
|
|
} |
|
519
|
|
|
return true |
|
520
|
|
|
} |
|
521
|
|
|
if block && token.typ == yaml_BLOCK_SEQUENCE_START_TOKEN { |
|
522
|
|
|
end_mark = token.end_mark |
|
523
|
|
|
parser.state = yaml_PARSE_BLOCK_SEQUENCE_FIRST_ENTRY_STATE |
|
524
|
|
|
*event = yaml_event_t{ |
|
525
|
|
|
typ: yaml_SEQUENCE_START_EVENT, |
|
526
|
|
|
start_mark: start_mark, |
|
527
|
|
|
end_mark: end_mark, |
|
528
|
|
|
anchor: anchor, |
|
529
|
|
|
tag: tag, |
|
530
|
|
|
implicit: implicit, |
|
531
|
|
|
style: yaml_style_t(yaml_BLOCK_SEQUENCE_STYLE), |
|
532
|
|
|
} |
|
533
|
|
|
return true |
|
534
|
|
|
} |
|
535
|
|
|
if block && token.typ == yaml_BLOCK_MAPPING_START_TOKEN { |
|
536
|
|
|
end_mark = token.end_mark |
|
537
|
|
|
parser.state = yaml_PARSE_BLOCK_MAPPING_FIRST_KEY_STATE |
|
538
|
|
|
*event = yaml_event_t{ |
|
539
|
|
|
typ: yaml_MAPPING_START_EVENT, |
|
540
|
|
|
start_mark: start_mark, |
|
541
|
|
|
end_mark: end_mark, |
|
542
|
|
|
anchor: anchor, |
|
543
|
|
|
tag: tag, |
|
544
|
|
|
implicit: implicit, |
|
545
|
|
|
style: yaml_style_t(yaml_BLOCK_MAPPING_STYLE), |
|
546
|
|
|
} |
|
547
|
|
|
return true |
|
548
|
|
|
} |
|
549
|
|
|
if len(anchor) > 0 || len(tag) > 0 { |
|
550
|
|
|
parser.state = parser.states[len(parser.states)-1] |
|
551
|
|
|
parser.states = parser.states[:len(parser.states)-1] |
|
552
|
|
|
|
|
553
|
|
|
*event = yaml_event_t{ |
|
554
|
|
|
typ: yaml_SCALAR_EVENT, |
|
555
|
|
|
start_mark: start_mark, |
|
556
|
|
|
end_mark: end_mark, |
|
557
|
|
|
anchor: anchor, |
|
558
|
|
|
tag: tag, |
|
559
|
|
|
implicit: implicit, |
|
560
|
|
|
quoted_implicit: false, |
|
561
|
|
|
style: yaml_style_t(yaml_PLAIN_SCALAR_STYLE), |
|
562
|
|
|
} |
|
563
|
|
|
return true |
|
564
|
|
|
} |
|
565
|
|
|
|
|
566
|
|
|
context := "while parsing a flow node" |
|
567
|
|
|
if block { |
|
568
|
|
|
context = "while parsing a block node" |
|
569
|
|
|
} |
|
570
|
|
|
yaml_parser_set_parser_error_context(parser, context, start_mark, |
|
571
|
|
|
"did not find expected node content", token.start_mark) |
|
572
|
|
|
return false |
|
573
|
|
|
} |
|
574
|
|
|
|
|
575
|
|
|
// Parse the productions: |
|
576
|
|
|
// block_sequence ::= BLOCK-SEQUENCE-START (BLOCK-ENTRY block_node?)* BLOCK-END |
|
577
|
|
|
// ******************** *********** * ********* |
|
578
|
|
|
// |
|
579
|
|
|
func yaml_parser_parse_block_sequence_entry(parser *yaml_parser_t, event *yaml_event_t, first bool) bool { |
|
580
|
|
|
if first { |
|
581
|
|
|
token := peek_token(parser) |
|
582
|
|
|
parser.marks = append(parser.marks, token.start_mark) |
|
583
|
|
|
skip_token(parser) |
|
584
|
|
|
} |
|
585
|
|
|
|
|
586
|
|
|
token := peek_token(parser) |
|
587
|
|
|
if token == nil { |
|
588
|
|
|
return false |
|
589
|
|
|
} |
|
590
|
|
|
|
|
591
|
|
|
if token.typ == yaml_BLOCK_ENTRY_TOKEN { |
|
592
|
|
|
mark := token.end_mark |
|
593
|
|
|
skip_token(parser) |
|
594
|
|
|
token = peek_token(parser) |
|
595
|
|
|
if token == nil { |
|
596
|
|
|
return false |
|
597
|
|
|
} |
|
598
|
|
|
if token.typ != yaml_BLOCK_ENTRY_TOKEN && token.typ != yaml_BLOCK_END_TOKEN { |
|
599
|
|
|
parser.states = append(parser.states, yaml_PARSE_BLOCK_SEQUENCE_ENTRY_STATE) |
|
600
|
|
|
return yaml_parser_parse_node(parser, event, true, false) |
|
601
|
|
|
} else { |
|
602
|
|
|
parser.state = yaml_PARSE_BLOCK_SEQUENCE_ENTRY_STATE |
|
603
|
|
|
return yaml_parser_process_empty_scalar(parser, event, mark) |
|
604
|
|
|
} |
|
605
|
|
|
} |
|
606
|
|
|
if token.typ == yaml_BLOCK_END_TOKEN { |
|
607
|
|
|
parser.state = parser.states[len(parser.states)-1] |
|
608
|
|
|
parser.states = parser.states[:len(parser.states)-1] |
|
609
|
|
|
parser.marks = parser.marks[:len(parser.marks)-1] |
|
610
|
|
|
|
|
611
|
|
|
*event = yaml_event_t{ |
|
612
|
|
|
typ: yaml_SEQUENCE_END_EVENT, |
|
613
|
|
|
start_mark: token.start_mark, |
|
614
|
|
|
end_mark: token.end_mark, |
|
615
|
|
|
} |
|
616
|
|
|
|
|
617
|
|
|
skip_token(parser) |
|
618
|
|
|
return true |
|
619
|
|
|
} |
|
620
|
|
|
|
|
621
|
|
|
context_mark := parser.marks[len(parser.marks)-1] |
|
622
|
|
|
parser.marks = parser.marks[:len(parser.marks)-1] |
|
623
|
|
|
return yaml_parser_set_parser_error_context(parser, |
|
624
|
|
|
"while parsing a block collection", context_mark, |
|
625
|
|
|
"did not find expected '-' indicator", token.start_mark) |
|
626
|
|
|
} |
|
627
|
|
|
|
|
628
|
|
|
// Parse the productions: |
|
629
|
|
|
// indentless_sequence ::= (BLOCK-ENTRY block_node?)+ |
|
630
|
|
|
// *********** * |
|
631
|
|
|
func yaml_parser_parse_indentless_sequence_entry(parser *yaml_parser_t, event *yaml_event_t) bool { |
|
632
|
|
|
token := peek_token(parser) |
|
633
|
|
|
if token == nil { |
|
634
|
|
|
return false |
|
635
|
|
|
} |
|
636
|
|
|
|
|
637
|
|
|
if token.typ == yaml_BLOCK_ENTRY_TOKEN { |
|
638
|
|
|
mark := token.end_mark |
|
639
|
|
|
skip_token(parser) |
|
640
|
|
|
token = peek_token(parser) |
|
641
|
|
|
if token == nil { |
|
642
|
|
|
return false |
|
643
|
|
|
} |
|
644
|
|
|
if token.typ != yaml_BLOCK_ENTRY_TOKEN && |
|
645
|
|
|
token.typ != yaml_KEY_TOKEN && |
|
646
|
|
|
token.typ != yaml_VALUE_TOKEN && |
|
647
|
|
|
token.typ != yaml_BLOCK_END_TOKEN { |
|
648
|
|
|
parser.states = append(parser.states, yaml_PARSE_INDENTLESS_SEQUENCE_ENTRY_STATE) |
|
649
|
|
|
return yaml_parser_parse_node(parser, event, true, false) |
|
650
|
|
|
} |
|
651
|
|
|
parser.state = yaml_PARSE_INDENTLESS_SEQUENCE_ENTRY_STATE |
|
652
|
|
|
return yaml_parser_process_empty_scalar(parser, event, mark) |
|
653
|
|
|
} |
|
654
|
|
|
parser.state = parser.states[len(parser.states)-1] |
|
655
|
|
|
parser.states = parser.states[:len(parser.states)-1] |
|
656
|
|
|
|
|
657
|
|
|
*event = yaml_event_t{ |
|
658
|
|
|
typ: yaml_SEQUENCE_END_EVENT, |
|
659
|
|
|
start_mark: token.start_mark, |
|
660
|
|
|
end_mark: token.start_mark, // [Go] Shouldn't this be token.end_mark? |
|
661
|
|
|
} |
|
662
|
|
|
return true |
|
663
|
|
|
} |
|
664
|
|
|
|
|
665
|
|
|
// Parse the productions: |
|
666
|
|
|
// block_mapping ::= BLOCK-MAPPING_START |
|
667
|
|
|
// ******************* |
|
668
|
|
|
// ((KEY block_node_or_indentless_sequence?)? |
|
669
|
|
|
// *** * |
|
670
|
|
|
// (VALUE block_node_or_indentless_sequence?)?)* |
|
671
|
|
|
// |
|
672
|
|
|
// BLOCK-END |
|
673
|
|
|
// ********* |
|
674
|
|
|
// |
|
675
|
|
|
func yaml_parser_parse_block_mapping_key(parser *yaml_parser_t, event *yaml_event_t, first bool) bool { |
|
676
|
|
|
if first { |
|
677
|
|
|
token := peek_token(parser) |
|
678
|
|
|
parser.marks = append(parser.marks, token.start_mark) |
|
679
|
|
|
skip_token(parser) |
|
680
|
|
|
} |
|
681
|
|
|
|
|
682
|
|
|
token := peek_token(parser) |
|
683
|
|
|
if token == nil { |
|
684
|
|
|
return false |
|
685
|
|
|
} |
|
686
|
|
|
|
|
687
|
|
|
if token.typ == yaml_KEY_TOKEN { |
|
688
|
|
|
mark := token.end_mark |
|
689
|
|
|
skip_token(parser) |
|
690
|
|
|
token = peek_token(parser) |
|
691
|
|
|
if token == nil { |
|
692
|
|
|
return false |
|
693
|
|
|
} |
|
694
|
|
|
if token.typ != yaml_KEY_TOKEN && |
|
695
|
|
|
token.typ != yaml_VALUE_TOKEN && |
|
696
|
|
|
token.typ != yaml_BLOCK_END_TOKEN { |
|
697
|
|
|
parser.states = append(parser.states, yaml_PARSE_BLOCK_MAPPING_VALUE_STATE) |
|
698
|
|
|
return yaml_parser_parse_node(parser, event, true, true) |
|
699
|
|
|
} else { |
|
700
|
|
|
parser.state = yaml_PARSE_BLOCK_MAPPING_VALUE_STATE |
|
701
|
|
|
return yaml_parser_process_empty_scalar(parser, event, mark) |
|
702
|
|
|
} |
|
703
|
|
|
} else if token.typ == yaml_BLOCK_END_TOKEN { |
|
704
|
|
|
parser.state = parser.states[len(parser.states)-1] |
|
705
|
|
|
parser.states = parser.states[:len(parser.states)-1] |
|
706
|
|
|
parser.marks = parser.marks[:len(parser.marks)-1] |
|
707
|
|
|
*event = yaml_event_t{ |
|
708
|
|
|
typ: yaml_MAPPING_END_EVENT, |
|
709
|
|
|
start_mark: token.start_mark, |
|
710
|
|
|
end_mark: token.end_mark, |
|
711
|
|
|
} |
|
712
|
|
|
skip_token(parser) |
|
713
|
|
|
return true |
|
714
|
|
|
} |
|
715
|
|
|
|
|
716
|
|
|
context_mark := parser.marks[len(parser.marks)-1] |
|
717
|
|
|
parser.marks = parser.marks[:len(parser.marks)-1] |
|
718
|
|
|
return yaml_parser_set_parser_error_context(parser, |
|
719
|
|
|
"while parsing a block mapping", context_mark, |
|
720
|
|
|
"did not find expected key", token.start_mark) |
|
721
|
|
|
} |
|
722
|
|
|
|
|
723
|
|
|
// Parse the productions: |
|
724
|
|
|
// block_mapping ::= BLOCK-MAPPING_START |
|
725
|
|
|
// |
|
726
|
|
|
// ((KEY block_node_or_indentless_sequence?)? |
|
727
|
|
|
// |
|
728
|
|
|
// (VALUE block_node_or_indentless_sequence?)?)* |
|
729
|
|
|
// ***** * |
|
730
|
|
|
// BLOCK-END |
|
731
|
|
|
// |
|
732
|
|
|
// |
|
733
|
|
|
func yaml_parser_parse_block_mapping_value(parser *yaml_parser_t, event *yaml_event_t) bool { |
|
734
|
|
|
token := peek_token(parser) |
|
735
|
|
|
if token == nil { |
|
736
|
|
|
return false |
|
737
|
|
|
} |
|
738
|
|
|
if token.typ == yaml_VALUE_TOKEN { |
|
739
|
|
|
mark := token.end_mark |
|
740
|
|
|
skip_token(parser) |
|
741
|
|
|
token = peek_token(parser) |
|
742
|
|
|
if token == nil { |
|
743
|
|
|
return false |
|
744
|
|
|
} |
|
745
|
|
|
if token.typ != yaml_KEY_TOKEN && |
|
746
|
|
|
token.typ != yaml_VALUE_TOKEN && |
|
747
|
|
|
token.typ != yaml_BLOCK_END_TOKEN { |
|
748
|
|
|
parser.states = append(parser.states, yaml_PARSE_BLOCK_MAPPING_KEY_STATE) |
|
749
|
|
|
return yaml_parser_parse_node(parser, event, true, true) |
|
750
|
|
|
} |
|
751
|
|
|
parser.state = yaml_PARSE_BLOCK_MAPPING_KEY_STATE |
|
752
|
|
|
return yaml_parser_process_empty_scalar(parser, event, mark) |
|
753
|
|
|
} |
|
754
|
|
|
parser.state = yaml_PARSE_BLOCK_MAPPING_KEY_STATE |
|
755
|
|
|
return yaml_parser_process_empty_scalar(parser, event, token.start_mark) |
|
756
|
|
|
} |
|
757
|
|
|
|
|
758
|
|
|
// Parse the productions: |
|
759
|
|
|
// flow_sequence ::= FLOW-SEQUENCE-START |
|
760
|
|
|
// ******************* |
|
761
|
|
|
// (flow_sequence_entry FLOW-ENTRY)* |
|
762
|
|
|
// * ********** |
|
763
|
|
|
// flow_sequence_entry? |
|
764
|
|
|
// * |
|
765
|
|
|
// FLOW-SEQUENCE-END |
|
766
|
|
|
// ***************** |
|
767
|
|
|
// flow_sequence_entry ::= flow_node | KEY flow_node? (VALUE flow_node?)? |
|
768
|
|
|
// * |
|
769
|
|
|
// |
|
770
|
|
|
func yaml_parser_parse_flow_sequence_entry(parser *yaml_parser_t, event *yaml_event_t, first bool) bool { |
|
771
|
|
|
if first { |
|
772
|
|
|
token := peek_token(parser) |
|
773
|
|
|
parser.marks = append(parser.marks, token.start_mark) |
|
774
|
|
|
skip_token(parser) |
|
775
|
|
|
} |
|
776
|
|
|
token := peek_token(parser) |
|
777
|
|
|
if token == nil { |
|
778
|
|
|
return false |
|
779
|
|
|
} |
|
780
|
|
|
if token.typ != yaml_FLOW_SEQUENCE_END_TOKEN { |
|
781
|
|
|
if !first { |
|
782
|
|
|
if token.typ == yaml_FLOW_ENTRY_TOKEN { |
|
783
|
|
|
skip_token(parser) |
|
784
|
|
|
token = peek_token(parser) |
|
785
|
|
|
if token == nil { |
|
786
|
|
|
return false |
|
787
|
|
|
} |
|
788
|
|
|
} else { |
|
789
|
|
|
context_mark := parser.marks[len(parser.marks)-1] |
|
790
|
|
|
parser.marks = parser.marks[:len(parser.marks)-1] |
|
791
|
|
|
return yaml_parser_set_parser_error_context(parser, |
|
792
|
|
|
"while parsing a flow sequence", context_mark, |
|
793
|
|
|
"did not find expected ',' or ']'", token.start_mark) |
|
794
|
|
|
} |
|
795
|
|
|
} |
|
796
|
|
|
|
|
797
|
|
|
if token.typ == yaml_KEY_TOKEN { |
|
798
|
|
|
parser.state = yaml_PARSE_FLOW_SEQUENCE_ENTRY_MAPPING_KEY_STATE |
|
799
|
|
|
*event = yaml_event_t{ |
|
800
|
|
|
typ: yaml_MAPPING_START_EVENT, |
|
801
|
|
|
start_mark: token.start_mark, |
|
802
|
|
|
end_mark: token.end_mark, |
|
803
|
|
|
implicit: true, |
|
804
|
|
|
style: yaml_style_t(yaml_FLOW_MAPPING_STYLE), |
|
805
|
|
|
} |
|
806
|
|
|
skip_token(parser) |
|
807
|
|
|
return true |
|
808
|
|
|
} else if token.typ != yaml_FLOW_SEQUENCE_END_TOKEN { |
|
809
|
|
|
parser.states = append(parser.states, yaml_PARSE_FLOW_SEQUENCE_ENTRY_STATE) |
|
810
|
|
|
return yaml_parser_parse_node(parser, event, false, false) |
|
811
|
|
|
} |
|
812
|
|
|
} |
|
813
|
|
|
|
|
814
|
|
|
parser.state = parser.states[len(parser.states)-1] |
|
815
|
|
|
parser.states = parser.states[:len(parser.states)-1] |
|
816
|
|
|
parser.marks = parser.marks[:len(parser.marks)-1] |
|
817
|
|
|
|
|
818
|
|
|
*event = yaml_event_t{ |
|
819
|
|
|
typ: yaml_SEQUENCE_END_EVENT, |
|
820
|
|
|
start_mark: token.start_mark, |
|
821
|
|
|
end_mark: token.end_mark, |
|
822
|
|
|
} |
|
823
|
|
|
|
|
824
|
|
|
skip_token(parser) |
|
825
|
|
|
return true |
|
826
|
|
|
} |
|
827
|
|
|
|
|
828
|
|
|
// |
|
829
|
|
|
// Parse the productions: |
|
830
|
|
|
// flow_sequence_entry ::= flow_node | KEY flow_node? (VALUE flow_node?)? |
|
831
|
|
|
// *** * |
|
832
|
|
|
// |
|
833
|
|
|
func yaml_parser_parse_flow_sequence_entry_mapping_key(parser *yaml_parser_t, event *yaml_event_t) bool { |
|
834
|
|
|
token := peek_token(parser) |
|
835
|
|
|
if token == nil { |
|
836
|
|
|
return false |
|
837
|
|
|
} |
|
838
|
|
|
if token.typ != yaml_VALUE_TOKEN && |
|
839
|
|
|
token.typ != yaml_FLOW_ENTRY_TOKEN && |
|
840
|
|
|
token.typ != yaml_FLOW_SEQUENCE_END_TOKEN { |
|
841
|
|
|
parser.states = append(parser.states, yaml_PARSE_FLOW_SEQUENCE_ENTRY_MAPPING_VALUE_STATE) |
|
842
|
|
|
return yaml_parser_parse_node(parser, event, false, false) |
|
843
|
|
|
} |
|
844
|
|
|
mark := token.end_mark |
|
845
|
|
|
skip_token(parser) |
|
846
|
|
|
parser.state = yaml_PARSE_FLOW_SEQUENCE_ENTRY_MAPPING_VALUE_STATE |
|
847
|
|
|
return yaml_parser_process_empty_scalar(parser, event, mark) |
|
848
|
|
|
} |
|
849
|
|
|
|
|
850
|
|
|
// Parse the productions: |
|
851
|
|
|
// flow_sequence_entry ::= flow_node | KEY flow_node? (VALUE flow_node?)? |
|
852
|
|
|
// ***** * |
|
853
|
|
|
// |
|
854
|
|
|
func yaml_parser_parse_flow_sequence_entry_mapping_value(parser *yaml_parser_t, event *yaml_event_t) bool { |
|
855
|
|
|
token := peek_token(parser) |
|
856
|
|
|
if token == nil { |
|
857
|
|
|
return false |
|
858
|
|
|
} |
|
859
|
|
|
if token.typ == yaml_VALUE_TOKEN { |
|
860
|
|
|
skip_token(parser) |
|
861
|
|
|
token := peek_token(parser) |
|
862
|
|
|
if token == nil { |
|
863
|
|
|
return false |
|
864
|
|
|
} |
|
865
|
|
|
if token.typ != yaml_FLOW_ENTRY_TOKEN && token.typ != yaml_FLOW_SEQUENCE_END_TOKEN { |
|
866
|
|
|
parser.states = append(parser.states, yaml_PARSE_FLOW_SEQUENCE_ENTRY_MAPPING_END_STATE) |
|
867
|
|
|
return yaml_parser_parse_node(parser, event, false, false) |
|
868
|
|
|
} |
|
869
|
|
|
} |
|
870
|
|
|
parser.state = yaml_PARSE_FLOW_SEQUENCE_ENTRY_MAPPING_END_STATE |
|
871
|
|
|
return yaml_parser_process_empty_scalar(parser, event, token.start_mark) |
|
872
|
|
|
} |
|
873
|
|
|
|
|
874
|
|
|
// Parse the productions: |
|
875
|
|
|
// flow_sequence_entry ::= flow_node | KEY flow_node? (VALUE flow_node?)? |
|
876
|
|
|
// * |
|
877
|
|
|
// |
|
878
|
|
|
func yaml_parser_parse_flow_sequence_entry_mapping_end(parser *yaml_parser_t, event *yaml_event_t) bool { |
|
879
|
|
|
token := peek_token(parser) |
|
880
|
|
|
if token == nil { |
|
881
|
|
|
return false |
|
882
|
|
|
} |
|
883
|
|
|
parser.state = yaml_PARSE_FLOW_SEQUENCE_ENTRY_STATE |
|
884
|
|
|
*event = yaml_event_t{ |
|
885
|
|
|
typ: yaml_MAPPING_END_EVENT, |
|
886
|
|
|
start_mark: token.start_mark, |
|
887
|
|
|
end_mark: token.start_mark, // [Go] Shouldn't this be end_mark? |
|
888
|
|
|
} |
|
889
|
|
|
return true |
|
890
|
|
|
} |
|
891
|
|
|
|
|
892
|
|
|
// Parse the productions: |
|
893
|
|
|
// flow_mapping ::= FLOW-MAPPING-START |
|
894
|
|
|
// ****************** |
|
895
|
|
|
// (flow_mapping_entry FLOW-ENTRY)* |
|
896
|
|
|
// * ********** |
|
897
|
|
|
// flow_mapping_entry? |
|
898
|
|
|
// ****************** |
|
899
|
|
|
// FLOW-MAPPING-END |
|
900
|
|
|
// **************** |
|
901
|
|
|
// flow_mapping_entry ::= flow_node | KEY flow_node? (VALUE flow_node?)? |
|
902
|
|
|
// * *** * |
|
903
|
|
|
// |
|
904
|
|
|
func yaml_parser_parse_flow_mapping_key(parser *yaml_parser_t, event *yaml_event_t, first bool) bool { |
|
905
|
|
|
if first { |
|
906
|
|
|
token := peek_token(parser) |
|
907
|
|
|
parser.marks = append(parser.marks, token.start_mark) |
|
908
|
|
|
skip_token(parser) |
|
909
|
|
|
} |
|
910
|
|
|
|
|
911
|
|
|
token := peek_token(parser) |
|
912
|
|
|
if token == nil { |
|
913
|
|
|
return false |
|
914
|
|
|
} |
|
915
|
|
|
|
|
916
|
|
|
if token.typ != yaml_FLOW_MAPPING_END_TOKEN { |
|
917
|
|
|
if !first { |
|
918
|
|
|
if token.typ == yaml_FLOW_ENTRY_TOKEN { |
|
919
|
|
|
skip_token(parser) |
|
920
|
|
|
token = peek_token(parser) |
|
921
|
|
|
if token == nil { |
|
922
|
|
|
return false |
|
923
|
|
|
} |
|
924
|
|
|
} else { |
|
925
|
|
|
context_mark := parser.marks[len(parser.marks)-1] |
|
926
|
|
|
parser.marks = parser.marks[:len(parser.marks)-1] |
|
927
|
|
|
return yaml_parser_set_parser_error_context(parser, |
|
928
|
|
|
"while parsing a flow mapping", context_mark, |
|
929
|
|
|
"did not find expected ',' or '}'", token.start_mark) |
|
930
|
|
|
} |
|
931
|
|
|
} |
|
932
|
|
|
|
|
933
|
|
|
if token.typ == yaml_KEY_TOKEN { |
|
934
|
|
|
skip_token(parser) |
|
935
|
|
|
token = peek_token(parser) |
|
936
|
|
|
if token == nil { |
|
937
|
|
|
return false |
|
938
|
|
|
} |
|
939
|
|
|
if token.typ != yaml_VALUE_TOKEN && |
|
940
|
|
|
token.typ != yaml_FLOW_ENTRY_TOKEN && |
|
941
|
|
|
token.typ != yaml_FLOW_MAPPING_END_TOKEN { |
|
942
|
|
|
parser.states = append(parser.states, yaml_PARSE_FLOW_MAPPING_VALUE_STATE) |
|
943
|
|
|
return yaml_parser_parse_node(parser, event, false, false) |
|
944
|
|
|
} else { |
|
945
|
|
|
parser.state = yaml_PARSE_FLOW_MAPPING_VALUE_STATE |
|
946
|
|
|
return yaml_parser_process_empty_scalar(parser, event, token.start_mark) |
|
947
|
|
|
} |
|
948
|
|
|
} else if token.typ != yaml_FLOW_MAPPING_END_TOKEN { |
|
949
|
|
|
parser.states = append(parser.states, yaml_PARSE_FLOW_MAPPING_EMPTY_VALUE_STATE) |
|
950
|
|
|
return yaml_parser_parse_node(parser, event, false, false) |
|
951
|
|
|
} |
|
952
|
|
|
} |
|
953
|
|
|
|
|
954
|
|
|
parser.state = parser.states[len(parser.states)-1] |
|
955
|
|
|
parser.states = parser.states[:len(parser.states)-1] |
|
956
|
|
|
parser.marks = parser.marks[:len(parser.marks)-1] |
|
957
|
|
|
*event = yaml_event_t{ |
|
958
|
|
|
typ: yaml_MAPPING_END_EVENT, |
|
959
|
|
|
start_mark: token.start_mark, |
|
960
|
|
|
end_mark: token.end_mark, |
|
961
|
|
|
} |
|
962
|
|
|
skip_token(parser) |
|
963
|
|
|
return true |
|
964
|
|
|
} |
|
965
|
|
|
|
|
966
|
|
|
// Parse the productions: |
|
967
|
|
|
// flow_mapping_entry ::= flow_node | KEY flow_node? (VALUE flow_node?)? |
|
968
|
|
|
// * ***** * |
|
969
|
|
|
// |
|
970
|
|
|
func yaml_parser_parse_flow_mapping_value(parser *yaml_parser_t, event *yaml_event_t, empty bool) bool { |
|
971
|
|
|
token := peek_token(parser) |
|
972
|
|
|
if token == nil { |
|
973
|
|
|
return false |
|
974
|
|
|
} |
|
975
|
|
|
if empty { |
|
976
|
|
|
parser.state = yaml_PARSE_FLOW_MAPPING_KEY_STATE |
|
977
|
|
|
return yaml_parser_process_empty_scalar(parser, event, token.start_mark) |
|
978
|
|
|
} |
|
979
|
|
|
if token.typ == yaml_VALUE_TOKEN { |
|
980
|
|
|
skip_token(parser) |
|
981
|
|
|
token = peek_token(parser) |
|
982
|
|
|
if token == nil { |
|
983
|
|
|
return false |
|
984
|
|
|
} |
|
985
|
|
|
if token.typ != yaml_FLOW_ENTRY_TOKEN && token.typ != yaml_FLOW_MAPPING_END_TOKEN { |
|
986
|
|
|
parser.states = append(parser.states, yaml_PARSE_FLOW_MAPPING_KEY_STATE) |
|
987
|
|
|
return yaml_parser_parse_node(parser, event, false, false) |
|
988
|
|
|
} |
|
989
|
|
|
} |
|
990
|
|
|
parser.state = yaml_PARSE_FLOW_MAPPING_KEY_STATE |
|
991
|
|
|
return yaml_parser_process_empty_scalar(parser, event, token.start_mark) |
|
992
|
|
|
} |
|
993
|
|
|
|
|
994
|
|
|
// Generate an empty scalar event. |
|
995
|
|
|
func yaml_parser_process_empty_scalar(parser *yaml_parser_t, event *yaml_event_t, mark yaml_mark_t) bool { |
|
996
|
|
|
*event = yaml_event_t{ |
|
997
|
|
|
typ: yaml_SCALAR_EVENT, |
|
998
|
|
|
start_mark: mark, |
|
999
|
|
|
end_mark: mark, |
|
1000
|
|
|
value: nil, // Empty |
|
1001
|
|
|
implicit: true, |
|
1002
|
|
|
style: yaml_style_t(yaml_PLAIN_SCALAR_STYLE), |
|
1003
|
|
|
} |
|
1004
|
|
|
return true |
|
1005
|
|
|
} |
|
1006
|
|
|
|
|
1007
|
|
|
var default_tag_directives = []yaml_tag_directive_t{ |
|
1008
|
|
|
{[]byte("!"), []byte("!")}, |
|
1009
|
|
|
{[]byte("!!"), []byte("tag:yaml.org,2002:")}, |
|
1010
|
|
|
} |
|
1011
|
|
|
|
|
1012
|
|
|
// Parse directives. |
|
1013
|
|
|
func yaml_parser_process_directives(parser *yaml_parser_t, |
|
1014
|
|
|
version_directive_ref **yaml_version_directive_t, |
|
1015
|
|
|
tag_directives_ref *[]yaml_tag_directive_t) bool { |
|
1016
|
|
|
|
|
1017
|
|
|
var version_directive *yaml_version_directive_t |
|
1018
|
|
|
var tag_directives []yaml_tag_directive_t |
|
1019
|
|
|
|
|
1020
|
|
|
token := peek_token(parser) |
|
1021
|
|
|
if token == nil { |
|
1022
|
|
|
return false |
|
1023
|
|
|
} |
|
1024
|
|
|
|
|
1025
|
|
|
for token.typ == yaml_VERSION_DIRECTIVE_TOKEN || token.typ == yaml_TAG_DIRECTIVE_TOKEN { |
|
1026
|
|
|
if token.typ == yaml_VERSION_DIRECTIVE_TOKEN { |
|
1027
|
|
|
if version_directive != nil { |
|
1028
|
|
|
yaml_parser_set_parser_error(parser, |
|
1029
|
|
|
"found duplicate %YAML directive", token.start_mark) |
|
1030
|
|
|
return false |
|
1031
|
|
|
} |
|
1032
|
|
|
if token.major != 1 || token.minor != 1 { |
|
1033
|
|
|
yaml_parser_set_parser_error(parser, |
|
1034
|
|
|
"found incompatible YAML document", token.start_mark) |
|
1035
|
|
|
return false |
|
1036
|
|
|
} |
|
1037
|
|
|
version_directive = &yaml_version_directive_t{ |
|
1038
|
|
|
major: token.major, |
|
1039
|
|
|
minor: token.minor, |
|
1040
|
|
|
} |
|
1041
|
|
|
} else if token.typ == yaml_TAG_DIRECTIVE_TOKEN { |
|
1042
|
|
|
value := yaml_tag_directive_t{ |
|
1043
|
|
|
handle: token.value, |
|
1044
|
|
|
prefix: token.prefix, |
|
1045
|
|
|
} |
|
1046
|
|
|
if !yaml_parser_append_tag_directive(parser, value, false, token.start_mark) { |
|
1047
|
|
|
return false |
|
1048
|
|
|
} |
|
1049
|
|
|
tag_directives = append(tag_directives, value) |
|
1050
|
|
|
} |
|
1051
|
|
|
|
|
1052
|
|
|
skip_token(parser) |
|
1053
|
|
|
token = peek_token(parser) |
|
1054
|
|
|
if token == nil { |
|
1055
|
|
|
return false |
|
1056
|
|
|
} |
|
1057
|
|
|
} |
|
1058
|
|
|
|
|
1059
|
|
|
for i := range default_tag_directives { |
|
1060
|
|
|
if !yaml_parser_append_tag_directive(parser, default_tag_directives[i], true, token.start_mark) { |
|
1061
|
|
|
return false |
|
1062
|
|
|
} |
|
1063
|
|
|
} |
|
1064
|
|
|
|
|
1065
|
|
|
if version_directive_ref != nil { |
|
1066
|
|
|
*version_directive_ref = version_directive |
|
1067
|
|
|
} |
|
1068
|
|
|
if tag_directives_ref != nil { |
|
1069
|
|
|
*tag_directives_ref = tag_directives |
|
1070
|
|
|
} |
|
1071
|
|
|
return true |
|
1072
|
|
|
} |
|
1073
|
|
|
|
|
1074
|
|
|
// Append a tag directive to the directives stack. |
|
1075
|
|
|
func yaml_parser_append_tag_directive(parser *yaml_parser_t, value yaml_tag_directive_t, allow_duplicates bool, mark yaml_mark_t) bool { |
|
1076
|
|
|
for i := range parser.tag_directives { |
|
1077
|
|
|
if bytes.Equal(value.handle, parser.tag_directives[i].handle) { |
|
1078
|
|
|
if allow_duplicates { |
|
1079
|
|
|
return true |
|
1080
|
|
|
} |
|
1081
|
|
|
return yaml_parser_set_parser_error(parser, "found duplicate %TAG directive", mark) |
|
1082
|
|
|
} |
|
1083
|
|
|
} |
|
1084
|
|
|
|
|
1085
|
|
|
// [Go] I suspect the copy is unnecessary. This was likely done |
|
1086
|
|
|
// because there was no way to track ownership of the data. |
|
1087
|
|
|
value_copy := yaml_tag_directive_t{ |
|
1088
|
|
|
handle: make([]byte, len(value.handle)), |
|
1089
|
|
|
prefix: make([]byte, len(value.prefix)), |
|
1090
|
|
|
} |
|
1091
|
|
|
copy(value_copy.handle, value.handle) |
|
1092
|
|
|
copy(value_copy.prefix, value.prefix) |
|
1093
|
|
|
parser.tag_directives = append(parser.tag_directives, value_copy) |
|
1094
|
|
|
return true |
|
1095
|
|
|
} |
|
1096
|
|
|
|
fraenky8 /
tables-to-go
