Function yaml_parser_parse_block_mapping_key

parserc.go:816–879

Parse the productions: block_mapping ::= BLOCK-MAPPING_START ******************* ((KEY block_node_or_indentless_sequence?)? *** * (VALUE block_node_or_indentless_sequence?)?)* BLOCK-END *********

(parser *yaml_parser_t, event *yaml_event_t, first bool)

//                          *********
//
func yaml_parser_parse_block_mapping_key(parser *yaml_parser_t, event *yaml_event_t, first bool) bool {
	if first {
		token := peek_token(parser)
		if token == nil {
			return false
		}
		parser.marks = append(parser.marks, token.start_mark)
		skip_token(parser)
	}

	token := peek_token(parser)
	if token == nil {
		return false
	}

	// [Go] A tail comment was left from the prior mapping value processed. Emit an event
	//      as it needs to be processed with that value and not the following key.
	if len(parser.tail_comment) > 0 {
		*event = yaml_event_t{
			typ:          yaml_TAIL_COMMENT_EVENT,
			start_mark:   token.start_mark,
			end_mark:     token.end_mark,
			foot_comment: parser.tail_comment,
		}
		parser.tail_comment = nil
		return true
	}

	if token.typ == yaml_KEY_TOKEN {
		mark := token.end_mark
		skip_token(parser)
		token = peek_token(parser)
		if token == nil {
			return false
		}
		if token.typ != yaml_KEY_TOKEN &&
			token.typ != yaml_VALUE_TOKEN &&
			token.typ != yaml_BLOCK_END_TOKEN {
			parser.states = append(parser.states, yaml_PARSE_BLOCK_MAPPING_VALUE_STATE)
			return yaml_parser_parse_node(parser, event, true, true)
		} else {
			parser.state = yaml_PARSE_BLOCK_MAPPING_VALUE_STATE
			return yaml_parser_process_empty_scalar(parser, event, mark)
		}
	} else if token.typ == yaml_BLOCK_END_TOKEN {
		parser.state = parser.states[len(parser.states)-1]
		parser.states = parser.states[:len(parser.states)-1]
		parser.marks = parser.marks[:len(parser.marks)-1]
		*event = yaml_event_t{
			typ:        yaml_MAPPING_END_EVENT,
			start_mark: token.start_mark,
			end_mark:   token.end_mark,
		}
		yaml_parser_set_event_comments(parser, event)
		skip_token(parser)
		return true
	}