// // Copyright (c) 2011-2019 Canonical Ltd // Copyright (c) 2006-2010 Kirill Simonov // // Permission is hereby granted, free of charge, to any person obtaining a copy of // this software and associated documentation files (the "Software"), to deal in // the Software without restriction, including without limitation the rights to // use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies // of the Software, and to permit persons to whom the Software is furnished to do // so, subject to the following conditions: // // The above copyright notice and this permission notice shall be included in all // copies or substantial portions of the Software. // // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR // IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, // FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE // AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER // LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, // OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE // SOFTWARE. package yaml import ( "fmt" "io" ) // The version directive data. type yaml_version_directive_t struct { major int8 // The major version number. minor int8 // The minor version number. } // The tag directive data. type yaml_tag_directive_t struct { handle []byte // The tag handle. prefix []byte // The tag prefix. } type yaml_encoding_t int // The stream encoding. const ( // Let the parser choose the encoding. yaml_ANY_ENCODING yaml_encoding_t = iota yaml_UTF8_ENCODING // The default UTF-8 encoding. yaml_UTF16LE_ENCODING // The UTF-16-LE encoding with BOM. yaml_UTF16BE_ENCODING // The UTF-16-BE encoding with BOM. ) type yaml_break_t int // Line break types. const ( // Let the parser choose the break type. yaml_ANY_BREAK yaml_break_t = iota yaml_CR_BREAK // Use CR for line breaks (Mac style). yaml_LN_BREAK // Use LN for line breaks (Unix style). yaml_CRLN_BREAK // Use CR LN for line breaks (DOS style). ) type yaml_error_type_t int // Many bad things could happen with the parser and emitter. const ( // No error is produced. yaml_NO_ERROR yaml_error_type_t = iota yaml_MEMORY_ERROR // Cannot allocate or reallocate a block of memory. yaml_READER_ERROR // Cannot read or decode the input stream. yaml_SCANNER_ERROR // Cannot scan the input stream. yaml_PARSER_ERROR // Cannot parse the input stream. yaml_COMPOSER_ERROR // Cannot compose a YAML document. yaml_WRITER_ERROR // Cannot write to the output stream. yaml_EMITTER_ERROR // Cannot emit a YAML stream. ) // The pointer position. type yaml_mark_t struct { index int // The position index. line int // The position line. column int // The position column. } // Node Styles type yaml_style_t int8 type yaml_scalar_style_t yaml_style_t // Scalar styles. const ( // Let the emitter choose the style. yaml_ANY_SCALAR_STYLE yaml_scalar_style_t = 0 yaml_PLAIN_SCALAR_STYLE yaml_scalar_style_t = 1 << iota // The plain scalar style. yaml_SINGLE_QUOTED_SCALAR_STYLE // The single-quoted scalar style. yaml_DOUBLE_QUOTED_SCALAR_STYLE // The double-quoted scalar style. yaml_LITERAL_SCALAR_STYLE // The literal scalar style. yaml_FOLDED_SCALAR_STYLE // The folded scalar style. ) type yaml_sequence_style_t yaml_style_t // Sequence styles. const ( // Let the emitter choose the style. yaml_ANY_SEQUENCE_STYLE yaml_sequence_style_t = iota yaml_BLOCK_SEQUENCE_STYLE // The block sequence style. yaml_FLOW_SEQUENCE_STYLE // The flow sequence style. ) type yaml_mapping_style_t yaml_style_t // Mapping styles. const ( // Let the emitter choose the style. yaml_ANY_MAPPING_STYLE yaml_mapping_style_t = iota yaml_BLOCK_MAPPING_STYLE // The block mapping style. yaml_FLOW_MAPPING_STYLE // The flow mapping style. ) // Tokens type yaml_token_type_t int // Token types. const ( // An empty token. yaml_NO_TOKEN yaml_token_type_t = iota yaml_STREAM_START_TOKEN // A STREAM-START token. yaml_STREAM_END_TOKEN // A STREAM-END token. yaml_VERSION_DIRECTIVE_TOKEN // A VERSION-DIRECTIVE token. yaml_TAG_DIRECTIVE_TOKEN // A TAG-DIRECTIVE token. yaml_DOCUMENT_START_TOKEN // A DOCUMENT-START token. yaml_DOCUMENT_END_TOKEN // A DOCUMENT-END token. yaml_BLOCK_SEQUENCE_START_TOKEN // A BLOCK-SEQUENCE-START token. yaml_BLOCK_MAPPING_START_TOKEN // A BLOCK-SEQUENCE-END token. yaml_BLOCK_END_TOKEN // A BLOCK-END token. yaml_FLOW_SEQUENCE_START_TOKEN // A FLOW-SEQUENCE-START token. yaml_FLOW_SEQUENCE_END_TOKEN // A FLOW-SEQUENCE-END token. yaml_FLOW_MAPPING_START_TOKEN // A FLOW-MAPPING-START token. yaml_FLOW_MAPPING_END_TOKEN // A FLOW-MAPPING-END token. yaml_BLOCK_ENTRY_TOKEN // A BLOCK-ENTRY token. yaml_FLOW_ENTRY_TOKEN // A FLOW-ENTRY token. yaml_KEY_TOKEN // A KEY token. yaml_VALUE_TOKEN // A VALUE token. yaml_ALIAS_TOKEN // An ALIAS token. yaml_ANCHOR_TOKEN // An ANCHOR token. yaml_TAG_TOKEN // A TAG token. yaml_SCALAR_TOKEN // A SCALAR token. ) func (tt yaml_token_type_t) String() string { switch tt { case yaml_NO_TOKEN: return "yaml_NO_TOKEN" case yaml_STREAM_START_TOKEN: return "yaml_STREAM_START_TOKEN" case yaml_STREAM_END_TOKEN: return "yaml_STREAM_END_TOKEN" case yaml_VERSION_DIRECTIVE_TOKEN: return "yaml_VERSION_DIRECTIVE_TOKEN" case yaml_TAG_DIRECTIVE_TOKEN: return "yaml_TAG_DIRECTIVE_TOKEN" case yaml_DOCUMENT_START_TOKEN: return "yaml_DOCUMENT_START_TOKEN" case yaml_DOCUMENT_END_TOKEN: return "yaml_DOCUMENT_END_TOKEN" case yaml_BLOCK_SEQUENCE_START_TOKEN: return "yaml_BLOCK_SEQUENCE_START_TOKEN" case yaml_BLOCK_MAPPING_START_TOKEN: return "yaml_BLOCK_MAPPING_START_TOKEN" case yaml_BLOCK_END_TOKEN: return "yaml_BLOCK_END_TOKEN" case yaml_FLOW_SEQUENCE_START_TOKEN: return "yaml_FLOW_SEQUENCE_START_TOKEN" case yaml_FLOW_SEQUENCE_END_TOKEN: return "yaml_FLOW_SEQUENCE_END_TOKEN" case yaml_FLOW_MAPPING_START_TOKEN: return "yaml_FLOW_MAPPING_START_TOKEN" case yaml_FLOW_MAPPING_END_TOKEN: return "yaml_FLOW_MAPPING_END_TOKEN" case yaml_BLOCK_ENTRY_TOKEN: return "yaml_BLOCK_ENTRY_TOKEN" case yaml_FLOW_ENTRY_TOKEN: return "yaml_FLOW_ENTRY_TOKEN" case yaml_KEY_TOKEN: return "yaml_KEY_TOKEN" case yaml_VALUE_TOKEN: return "yaml_VALUE_TOKEN" case yaml_ALIAS_TOKEN: return "yaml_ALIAS_TOKEN" case yaml_ANCHOR_TOKEN: return "yaml_ANCHOR_TOKEN" case yaml_TAG_TOKEN: return "yaml_TAG_TOKEN" case yaml_SCALAR_TOKEN: return "yaml_SCALAR_TOKEN" } return "<unknown token>" } // The token structure. type yaml_token_t struct { // The token type. typ yaml_token_type_t // The start/end of the token. start_mark, end_mark yaml_mark_t // The stream encoding (for yaml_STREAM_START_TOKEN). encoding yaml_encoding_t // The alias/anchor/scalar value or tag/tag directive handle // (for yaml_ALIAS_TOKEN, yaml_ANCHOR_TOKEN, yaml_SCALAR_TOKEN, yaml_TAG_TOKEN, yaml_TAG_DIRECTIVE_TOKEN). value []byte // The tag suffix (for yaml_TAG_TOKEN). suffix []byte // The tag directive prefix (for yaml_TAG_DIRECTIVE_TOKEN). prefix []byte // The scalar style (for yaml_SCALAR_TOKEN). style yaml_scalar_style_t // The version directive major/minor (for yaml_VERSION_DIRECTIVE_TOKEN). major, minor int8 } // Events type yaml_event_type_t int8 // Event types. const ( // An empty event. yaml_NO_EVENT yaml_event_type_t = iota yaml_STREAM_START_EVENT // A STREAM-START event. yaml_STREAM_END_EVENT // A STREAM-END event. yaml_DOCUMENT_START_EVENT // A DOCUMENT-START event. yaml_DOCUMENT_END_EVENT // A DOCUMENT-END event. yaml_ALIAS_EVENT // An ALIAS event. yaml_SCALAR_EVENT // A SCALAR event. yaml_SEQUENCE_START_EVENT // A SEQUENCE-START event. yaml_SEQUENCE_END_EVENT // A SEQUENCE-END event. yaml_MAPPING_START_EVENT // A MAPPING-START event. yaml_MAPPING_END_EVENT // A MAPPING-END event. yaml_TAIL_COMMENT_EVENT ) var eventStrings = []string{ yaml_NO_EVENT: "none", yaml_STREAM_START_EVENT: "stream start", yaml_STREAM_END_EVENT: "stream end", yaml_DOCUMENT_START_EVENT: "document start", yaml_DOCUMENT_END_EVENT: "document end", yaml_ALIAS_EVENT: "alias", yaml_SCALAR_EVENT: "scalar", yaml_SEQUENCE_START_EVENT: "sequence start", yaml_SEQUENCE_END_EVENT: "sequence end", yaml_MAPPING_START_EVENT: "mapping start", yaml_MAPPING_END_EVENT: "mapping end", yaml_TAIL_COMMENT_EVENT: "tail comment", } func (e yaml_event_type_t) String() string { if e < 0 || int(e) >= len(eventStrings) { return fmt.Sprintf("unknown event %d", e) } return eventStrings[e] } // The event structure. type yaml_event_t struct { // The event type. typ yaml_event_type_t // The start and end of the event. start_mark, end_mark yaml_mark_t // The document encoding (for yaml_STREAM_START_EVENT). encoding yaml_encoding_t // The version directive (for yaml_DOCUMENT_START_EVENT). version_directive *yaml_version_directive_t // The list of tag directives (for yaml_DOCUMENT_START_EVENT). tag_directives []yaml_tag_directive_t // The comments head_comment []byte line_comment []byte foot_comment []byte tail_comment []byte // The anchor (for yaml_SCALAR_EVENT, yaml_SEQUENCE_START_EVENT, yaml_MAPPING_START_EVENT, yaml_ALIAS_EVENT). anchor []byte // The tag (for yaml_SCALAR_EVENT, yaml_SEQUENCE_START_EVENT, yaml_MAPPING_START_EVENT). tag []byte // The scalar value (for yaml_SCALAR_EVENT). value []byte // Is the document start/end indicator implicit, or the tag optional? // (for yaml_DOCUMENT_START_EVENT, yaml_DOCUMENT_END_EVENT, yaml_SEQUENCE_START_EVENT, yaml_MAPPING_START_EVENT, yaml_SCALAR_EVENT). implicit bool // Is the tag optional for any non-plain style? (for yaml_SCALAR_EVENT). quoted_implicit bool // The style (for yaml_SCALAR_EVENT, yaml_SEQUENCE_START_EVENT, yaml_MAPPING_START_EVENT). style yaml_style_t } func (e *yaml_event_t) scalar_style() yaml_scalar_style_t { return yaml_scalar_style_t(e.style) } func (e *yaml_event_t) sequence_style() yaml_sequence_style_t { return yaml_sequence_style_t(e.style) } func (e *yaml_event_t) mapping_style() yaml_mapping_style_t { return yaml_mapping_style_t(e.style) } // Nodes const ( yaml_NULL_TAG = "tag:yaml.org,2002:null" // The tag !!null with the only possible value: null. yaml_BOOL_TAG = "tag:yaml.org,2002:bool" // The tag !!bool with the values: true and false. yaml_STR_TAG = "tag:yaml.org,2002:str" // The tag !!str for string values. yaml_INT_TAG = "tag:yaml.org,2002:int" // The tag !!int for integer values. yaml_FLOAT_TAG = "tag:yaml.org,2002:float" // The tag !!float for float values. yaml_TIMESTAMP_TAG = "tag:yaml.org,2002:timestamp" // The tag !!timestamp for date and time values. yaml_SEQ_TAG = "tag:yaml.org,2002:seq" // The tag !!seq is used to denote sequences. yaml_MAP_TAG = "tag:yaml.org,2002:map" // The tag !!map is used to denote mapping. // Not in original libyaml. yaml_BINARY_TAG = "tag:yaml.org,2002:binary" yaml_MERGE_TAG = "tag:yaml.org,2002:merge" yaml_DEFAULT_SCALAR_TAG = yaml_STR_TAG // The default scalar tag is !!str. yaml_DEFAULT_SEQUENCE_TAG = yaml_SEQ_TAG // The default sequence tag is !!seq. yaml_DEFAULT_MAPPING_TAG = yaml_MAP_TAG // The default mapping tag is !!map. ) type yaml_node_type_t int // Node types. const ( // An empty node. yaml_NO_NODE yaml_node_type_t = iota yaml_SCALAR_NODE // A scalar node. yaml_SEQUENCE_NODE // A sequence node. yaml_MAPPING_NODE // A mapping node. ) // An element of a sequence node. type yaml_node_item_t int // An element of a mapping node. type yaml_node_pair_t struct { key int // The key of the element. value int // The value of the element. } // The node structure. type yaml_node_t struct { typ yaml_node_type_t // The node type. tag []byte // The node tag. // The node data. // The scalar parameters (for yaml_SCALAR_NODE). scalar struct { value []byte // The scalar value. length int // The length of the scalar value. style yaml_scalar_style_t // The scalar style. } // The sequence parameters (for YAML_SEQUENCE_NODE). sequence struct { items_data []yaml_node_item_t // The stack of sequence items. style yaml_sequence_style_t // The sequence style. } // The mapping parameters (for yaml_MAPPING_NODE). mapping struct { pairs_data []yaml_node_pair_t // The stack of mapping pairs (key, value). pairs_start *yaml_node_pair_t // The beginning of the stack. pairs_end *yaml_node_pair_t // The end of the stack. pairs_top *yaml_node_pair_t // The top of the stack. style yaml_mapping_style_t // The mapping style. } start_mark yaml_mark_t // The beginning of the node. end_mark yaml_mark_t // The end of the node. } // The document structure. type yaml_document_t struct { // The document nodes. nodes []yaml_node_t // The version directive. version_directive *yaml_version_directive_t // The list of tag directives. tag_directives_data []yaml_tag_directive_t tag_directives_start int // The beginning of the tag directives list. tag_directives_end int // The end of the tag directives list. start_implicit int // Is the document start indicator implicit? end_implicit int // Is the document end indicator implicit? // The start/end of the document. start_mark, end_mark yaml_mark_t } // The prototype of a read handler. // // The read handler is called when the parser needs to read more bytes from the // source. The handler should write not more than size bytes to the buffer. // The number of written bytes should be set to the size_read variable. // // [in,out] data A pointer to an application data specified by // yaml_parser_set_input(). // [out] buffer The buffer to write the data from the source. // [in] size The size of the buffer. // [out] size_read The actual number of bytes read from the source. // // On success, the handler should return 1. If the handler failed, // the returned value should be 0. On EOF, the handler should set the // size_read to 0 and return 1. type yaml_read_handler_t func(parser *yaml_parser_t, buffer []byte) (n int, err error) // This structure holds information about a potential simple key. type yaml_simple_key_t struct { possible bool // Is a simple key possible? required bool // Is a simple key required? token_number int // The number of the token. mark yaml_mark_t // The position mark. } // The states of the parser. type yaml_parser_state_t int const ( yaml_PARSE_STREAM_START_STATE yaml_parser_state_t = iota yaml_PARSE_IMPLICIT_DOCUMENT_START_STATE // Expect the beginning of an implicit document. yaml_PARSE_DOCUMENT_START_STATE // Expect DOCUMENT-START. yaml_PARSE_DOCUMENT_CONTENT_STATE // Expect the content of a document. yaml_PARSE_DOCUMENT_END_STATE // Expect DOCUMENT-END. yaml_PARSE_BLOCK_NODE_STATE // Expect a block node. yaml_PARSE_BLOCK_NODE_OR_INDENTLESS_SEQUENCE_STATE // Expect a block node or indentless sequence. yaml_PARSE_FLOW_NODE_STATE // Expect a flow node. yaml_PARSE_BLOCK_SEQUENCE_FIRST_ENTRY_STATE // Expect the first entry of a block sequence. yaml_PARSE_BLOCK_SEQUENCE_ENTRY_STATE // Expect an entry of a block sequence. yaml_PARSE_INDENTLESS_SEQUENCE_ENTRY_STATE // Expect an entry of an indentless sequence. yaml_PARSE_BLOCK_MAPPING_FIRST_KEY_STATE // Expect the first key of a block mapping. yaml_PARSE_BLOCK_MAPPING_KEY_STATE // Expect a block mapping key. yaml_PARSE_BLOCK_MAPPING_VALUE_STATE // Expect a block mapping value. yaml_PARSE_FLOW_SEQUENCE_FIRST_ENTRY_STATE // Expect the first entry of a flow sequence. yaml_PARSE_FLOW_SEQUENCE_ENTRY_STATE // Expect an entry of a flow sequence. yaml_PARSE_FLOW_SEQUENCE_ENTRY_MAPPING_KEY_STATE // Expect a key of an ordered mapping. yaml_PARSE_FLOW_SEQUENCE_ENTRY_MAPPING_VALUE_STATE // Expect a value of an ordered mapping. yaml_PARSE_FLOW_SEQUENCE_ENTRY_MAPPING_END_STATE // Expect the and of an ordered mapping entry. yaml_PARSE_FLOW_MAPPING_FIRST_KEY_STATE // Expect the first key of a flow mapping. yaml_PARSE_FLOW_MAPPING_KEY_STATE // Expect a key of a flow mapping. yaml_PARSE_FLOW_MAPPING_VALUE_STATE // Expect a value of a flow mapping. yaml_PARSE_FLOW_MAPPING_EMPTY_VALUE_STATE // Expect an empty value of a flow mapping. yaml_PARSE_END_STATE // Expect nothing. ) func (ps yaml_parser_state_t) String() string { switch ps { case yaml_PARSE_STREAM_START_STATE: return "yaml_PARSE_STREAM_START_STATE" case yaml_PARSE_IMPLICIT_DOCUMENT_START_STATE: return "yaml_PARSE_IMPLICIT_DOCUMENT_START_STATE" case yaml_PARSE_DOCUMENT_START_STATE: return "yaml_PARSE_DOCUMENT_START_STATE" case yaml_PARSE_DOCUMENT_CONTENT_STATE: return "yaml_PARSE_DOCUMENT_CONTENT_STATE" case yaml_PARSE_DOCUMENT_END_STATE: return "yaml_PARSE_DOCUMENT_END_STATE" case yaml_PARSE_BLOCK_NODE_STATE: return "yaml_PARSE_BLOCK_NODE_STATE" case yaml_PARSE_BLOCK_NODE_OR_INDENTLESS_SEQUENCE_STATE: return "yaml_PARSE_BLOCK_NODE_OR_INDENTLESS_SEQUENCE_STATE" case yaml_PARSE_FLOW_NODE_STATE: return "yaml_PARSE_FLOW_NODE_STATE" case yaml_PARSE_BLOCK_SEQUENCE_FIRST_ENTRY_STATE: return "yaml_PARSE_BLOCK_SEQUENCE_FIRST_ENTRY_STATE" case yaml_PARSE_BLOCK_SEQUENCE_ENTRY_STATE: return "yaml_PARSE_BLOCK_SEQUENCE_ENTRY_STATE" case yaml_PARSE_INDENTLESS_SEQUENCE_ENTRY_STATE: return "yaml_PARSE_INDENTLESS_SEQUENCE_ENTRY_STATE" case yaml_PARSE_BLOCK_MAPPING_FIRST_KEY_STATE: return "yaml_PARSE_BLOCK_MAPPING_FIRST_KEY_STATE" case yaml_PARSE_BLOCK_MAPPING_KEY_STATE: return "yaml_PARSE_BLOCK_MAPPING_KEY_STATE" case yaml_PARSE_BLOCK_MAPPING_VALUE_STATE: return "yaml_PARSE_BLOCK_MAPPING_VALUE_STATE" case yaml_PARSE_FLOW_SEQUENCE_FIRST_ENTRY_STATE: return "yaml_PARSE_FLOW_SEQUENCE_FIRST_ENTRY_STATE" case yaml_PARSE_FLOW_SEQUENCE_ENTRY_STATE: return "yaml_PARSE_FLOW_SEQUENCE_ENTRY_STATE" case yaml_PARSE_FLOW_SEQUENCE_ENTRY_MAPPING_KEY_STATE: return "yaml_PARSE_FLOW_SEQUENCE_ENTRY_MAPPING_KEY_STATE" case yaml_PARSE_FLOW_SEQUENCE_ENTRY_MAPPING_VALUE_STATE: return "yaml_PARSE_FLOW_SEQUENCE_ENTRY_MAPPING_VALUE_STATE" case yaml_PARSE_FLOW_SEQUENCE_ENTRY_MAPPING_END_STATE: return "yaml_PARSE_FLOW_SEQUENCE_ENTRY_MAPPING_END_STATE" case yaml_PARSE_FLOW_MAPPING_FIRST_KEY_STATE: return "yaml_PARSE_FLOW_MAPPING_FIRST_KEY_STATE" case yaml_PARSE_FLOW_MAPPING_KEY_STATE: return "yaml_PARSE_FLOW_MAPPING_KEY_STATE" case yaml_PARSE_FLOW_MAPPING_VALUE_STATE: return "yaml_PARSE_FLOW_MAPPING_VALUE_STATE" case yaml_PARSE_FLOW_MAPPING_EMPTY_VALUE_STATE: return "yaml_PARSE_FLOW_MAPPING_EMPTY_VALUE_STATE" case yaml_PARSE_END_STATE: return "yaml_PARSE_END_STATE" } return "<unknown parser state>" } // This structure holds aliases data. type yaml_alias_data_t struct { anchor []byte // The anchor. index int // The node id. mark yaml_mark_t // The anchor mark. } // The parser structure. // // All members are internal. Manage the structure using the // yaml_parser_ family of functions. type yaml_parser_t struct { // Error handling error yaml_error_type_t // Error type. problem string // Error description. // The byte about which the problem occurred. problem_offset int problem_value int problem_mark yaml_mark_t // The error context. context string context_mark yaml_mark_t // Reader stuff read_handler yaml_read_handler_t // Read handler. input_reader io.Reader // File input data. input []byte // String input data. input_pos int eof bool // EOF flag buffer []byte // The working buffer. buffer_pos int // The current position of the buffer. unread int // The number of unread characters in the buffer. newlines int // The number of line breaks since last non-break/non-blank character raw_buffer []byte // The raw buffer. raw_buffer_pos int // The current position of the buffer. encoding yaml_encoding_t // The input encoding. offset int // The offset of the current position (in bytes). mark yaml_mark_t // The mark of the current position. // Comments head_comment []byte // The current head comments line_comment []byte // The current line comments foot_comment []byte // The current foot comments tail_comment []byte // Foot comment that happens at the end of a block. stem_comment []byte // Comment in item preceding a nested structure (list inside list item, etc) comments []yaml_comment_t // The folded comments for all parsed tokens comments_head int // Scanner stuff stream_start_produced bool // Have we started to scan the input stream? stream_end_produced bool // Have we reached the end of the input stream? flow_level int // The number of unclosed '[' and '{' indicators. tokens []yaml_token_t // The tokens queue. tokens_head int // The head of the tokens queue. tokens_parsed int // The number of tokens fetched from the queue. token_available bool // Does the tokens queue contain a token ready for dequeueing. indent int // The current indentation level. indents []int // The indentation levels stack. simple_key_allowed bool // May a simple key occur at the current position? simple_keys []yaml_simple_key_t // The stack of simple keys. simple_keys_by_tok map[int]int // possible simple_key indexes indexed by token_number // Parser stuff state yaml_parser_state_t // The current parser state. states []yaml_parser_state_t // The parser states stack. marks []yaml_mark_t // The stack of marks. tag_directives []yaml_tag_directive_t // The list of TAG directives. // Dumper stuff aliases []yaml_alias_data_t // The alias data. document *yaml_document_t // The currently parsed document. } type yaml_comment_t struct { scan_mark yaml_mark_t // Position where scanning for comments started token_mark yaml_mark_t // Position after which tokens will be associated with this comment start_mark yaml_mark_t // Position of '#' comment mark end_mark yaml_mark_t // Position where comment terminated head []byte line []byte foot []byte } // Emitter Definitions // The prototype of a write handler. // // The write handler is called when the emitter needs to flush the accumulated // characters to the output. The handler should write @a size bytes of the // @a buffer to the output. // // @param[in,out] data A pointer to an application data specified by // yaml_emitter_set_output(). // @param[in] buffer The buffer with bytes to be written. // @param[in] size The size of the buffer. // // @returns On success, the handler should return @c 1. If the handler failed, // the returned value should be @c 0. // type yaml_write_handler_t func(emitter *yaml_emitter_t, buffer []byte) error type yaml_emitter_state_t int // The emitter states. const ( // Expect STREAM-START. yaml_EMIT_STREAM_START_STATE yaml_emitter_state_t = iota yaml_EMIT_FIRST_DOCUMENT_START_STATE // Expect the first DOCUMENT-START or STREAM-END. yaml_EMIT_DOCUMENT_START_STATE // Expect DOCUMENT-START or STREAM-END. yaml_EMIT_DOCUMENT_CONTENT_STATE // Expect the content of a document. yaml_EMIT_DOCUMENT_END_STATE // Expect DOCUMENT-END. yaml_EMIT_FLOW_SEQUENCE_FIRST_ITEM_STATE // Expect the first item of a flow sequence. yaml_EMIT_FLOW_SEQUENCE_TRAIL_ITEM_STATE // Expect the next item of a flow sequence, with the comma already written out yaml_EMIT_FLOW_SEQUENCE_ITEM_STATE // Expect an item of a flow sequence. yaml_EMIT_FLOW_MAPPING_FIRST_KEY_STATE // Expect the first key of a flow mapping. yaml_EMIT_FLOW_MAPPING_TRAIL_KEY_STATE // Expect the next key of a flow mapping, with the comma already written out yaml_EMIT_FLOW_MAPPING_KEY_STATE // Expect a key of a flow mapping. yaml_EMIT_FLOW_MAPPING_SIMPLE_VALUE_STATE // Expect a value for a simple key of a flow mapping. yaml_EMIT_FLOW_MAPPING_VALUE_STATE // Expect a value of a flow mapping. yaml_EMIT_BLOCK_SEQUENCE_FIRST_ITEM_STATE // Expect the first item of a block sequence. yaml_EMIT_BLOCK_SEQUENCE_ITEM_STATE // Expect an item of a block sequence. yaml_EMIT_BLOCK_MAPPING_FIRST_KEY_STATE // Expect the first key of a block mapping. yaml_EMIT_BLOCK_MAPPING_KEY_STATE // Expect the key of a block mapping. yaml_EMIT_BLOCK_MAPPING_SIMPLE_VALUE_STATE // Expect a value for a simple key of a block mapping. yaml_EMIT_BLOCK_MAPPING_VALUE_STATE // Expect a value of a block mapping. yaml_EMIT_END_STATE // Expect nothing. ) // The emitter structure. // // All members are internal. Manage the structure using the @c yaml_emitter_ // family of functions. type yaml_emitter_t struct { // Error handling error yaml_error_type_t // Error type. problem string // Error description. // Writer stuff write_handler yaml_write_handler_t // Write handler. output_buffer *[]byte // String output data. output_writer io.Writer // File output data. buffer []byte // The working buffer. buffer_pos int // The current position of the buffer. raw_buffer []byte // The raw buffer. raw_buffer_pos int // The current position of the buffer. encoding yaml_encoding_t // The stream encoding. // Emitter stuff canonical bool // If the output is in the canonical style? best_indent int // The number of indentation spaces. best_width int // The preferred width of the output lines. unicode bool // Allow unescaped non-ASCII characters? line_break yaml_break_t // The preferred line break. state yaml_emitter_state_t // The current emitter state. states []yaml_emitter_state_t // The stack of states. events []yaml_event_t // The event queue. events_head int // The head of the event queue. indents []int // The stack of indentation levels. tag_directives []yaml_tag_directive_t // The list of tag directives. indent int // The current indentation level. flow_level int // The current flow level. root_context bool // Is it the document root context? sequence_context bool // Is it a sequence context? mapping_context bool // Is it a mapping context? simple_key_context bool // Is it a simple mapping key context? line int // The current line. column int // The current column. whitespace bool // If the last character was a whitespace? indention bool // If the last character was an indentation character (' ', '-', '?', ':')? open_ended bool // If an explicit document end is required? space_above bool // Is there's an empty line above? foot_indent int // The indent used to write the foot comment above, or -1 if none. // Anchor analysis. anchor_data struct { anchor []byte // The anchor value. alias bool // Is it an alias? } // Tag analysis. tag_data struct { handle []byte // The tag handle. suffix []byte // The tag suffix. } // Scalar analysis. scalar_data struct { value []byte // The scalar value. multiline bool // Does the scalar contain line breaks? flow_plain_allowed bool // Can the scalar be expessed in the flow plain style? block_plain_allowed bool // Can the scalar be expressed in the block plain style? single_quoted_allowed bool // Can the scalar be expressed in the single quoted style? block_allowed bool // Can the scalar be expressed in the literal or folded styles? style yaml_scalar_style_t // The output style. } // Comments head_comment []byte line_comment []byte foot_comment []byte tail_comment []byte key_line_comment []byte // Dumper stuff opened bool // If the stream was already opened? closed bool // If the stream was already closed? // The information associated with the document nodes. anchors *struct { references int // The number of references. anchor int // The anchor id. serialized bool // If the node has been emitted? } last_anchor_id int // The last assigned anchor id. document *yaml_document_t // The currently emitted document. }