|
- package yaml
-
- import (
- "io"
- )
-
- func yaml_insert_token(parser *yaml_parser_t, pos int, token *yaml_token_t) {
- //fmt.Println("yaml_insert_token", "pos:", pos, "typ:", token.typ, "head:", parser.tokens_head, "len:", len(parser.tokens))
-
- // Check if we can move the queue at the beginning of the buffer.
- if parser.tokens_head > 0 && len(parser.tokens) == cap(parser.tokens) {
- if parser.tokens_head != len(parser.tokens) {
- copy(parser.tokens, parser.tokens[parser.tokens_head:])
- }
- parser.tokens = parser.tokens[:len(parser.tokens)-parser.tokens_head]
- parser.tokens_head = 0
- }
- parser.tokens = append(parser.tokens, *token)
- if pos < 0 {
- return
- }
- copy(parser.tokens[parser.tokens_head+pos+1:], parser.tokens[parser.tokens_head+pos:])
- parser.tokens[parser.tokens_head+pos] = *token
- }
-
- // Create a new parser object.
- func yaml_parser_initialize(parser *yaml_parser_t) bool {
- *parser = yaml_parser_t{
- raw_buffer: make([]byte, 0, input_raw_buffer_size),
- buffer: make([]byte, 0, input_buffer_size),
- }
- return true
- }
-
- // Destroy a parser object.
- func yaml_parser_delete(parser *yaml_parser_t) {
- *parser = yaml_parser_t{}
- }
-
- // String read handler.
- func yaml_string_read_handler(parser *yaml_parser_t, buffer []byte) (n int, err error) {
- if parser.input_pos == len(parser.input) {
- return 0, io.EOF
- }
- n = copy(buffer, parser.input[parser.input_pos:])
- parser.input_pos += n
- return n, nil
- }
-
- // Reader read handler.
- func yaml_reader_read_handler(parser *yaml_parser_t, buffer []byte) (n int, err error) {
- return parser.input_reader.Read(buffer)
- }
-
- // Set a string input.
- func yaml_parser_set_input_string(parser *yaml_parser_t, input []byte) {
- if parser.read_handler != nil {
- panic("must set the input source only once")
- }
- parser.read_handler = yaml_string_read_handler
- parser.input = input
- parser.input_pos = 0
- }
-
- // Set a file input.
- func yaml_parser_set_input_reader(parser *yaml_parser_t, r io.Reader) {
- if parser.read_handler != nil {
- panic("must set the input source only once")
- }
- parser.read_handler = yaml_reader_read_handler
- parser.input_reader = r
- }
-
- // Set the source encoding.
- func yaml_parser_set_encoding(parser *yaml_parser_t, encoding yaml_encoding_t) {
- if parser.encoding != yaml_ANY_ENCODING {
- panic("must set the encoding only once")
- }
- parser.encoding = encoding
- }
-
- // Create a new emitter object.
- func yaml_emitter_initialize(emitter *yaml_emitter_t) {
- *emitter = yaml_emitter_t{
- buffer: make([]byte, output_buffer_size),
- raw_buffer: make([]byte, 0, output_raw_buffer_size),
- states: make([]yaml_emitter_state_t, 0, initial_stack_size),
- events: make([]yaml_event_t, 0, initial_queue_size),
- }
- }
-
- // Destroy an emitter object.
- func yaml_emitter_delete(emitter *yaml_emitter_t) {
- *emitter = yaml_emitter_t{}
- }
-
- // String write handler.
- func yaml_string_write_handler(emitter *yaml_emitter_t, buffer []byte) error {
- *emitter.output_buffer = append(*emitter.output_buffer, buffer...)
- return nil
- }
-
- // yaml_writer_write_handler uses emitter.output_writer to write the
- // emitted text.
- func yaml_writer_write_handler(emitter *yaml_emitter_t, buffer []byte) error {
- _, err := emitter.output_writer.Write(buffer)
- return err
- }
-
- // Set a string output.
- func yaml_emitter_set_output_string(emitter *yaml_emitter_t, output_buffer *[]byte) {
- if emitter.write_handler != nil {
- panic("must set the output target only once")
- }
- emitter.write_handler = yaml_string_write_handler
- emitter.output_buffer = output_buffer
- }
-
- // Set a file output.
- func yaml_emitter_set_output_writer(emitter *yaml_emitter_t, w io.Writer) {
- if emitter.write_handler != nil {
- panic("must set the output target only once")
- }
- emitter.write_handler = yaml_writer_write_handler
- emitter.output_writer = w
- }
-
- // Set the output encoding.
- func yaml_emitter_set_encoding(emitter *yaml_emitter_t, encoding yaml_encoding_t) {
- if emitter.encoding != yaml_ANY_ENCODING {
- panic("must set the output encoding only once")
- }
- emitter.encoding = encoding
- }
-
- // Set the canonical output style.
- func yaml_emitter_set_canonical(emitter *yaml_emitter_t, canonical bool) {
- emitter.canonical = canonical
- }
-
- //// Set the indentation increment.
- func yaml_emitter_set_indent(emitter *yaml_emitter_t, indent int) {
- if indent < 2 || indent > 9 {
- indent = 2
- }
- emitter.best_indent = indent
- }
-
- // Set the preferred line width.
- func yaml_emitter_set_width(emitter *yaml_emitter_t, width int) {
- if width < 0 {
- width = -1
- }
- emitter.best_width = width
- }
-
- // Set if unescaped non-ASCII characters are allowed.
- func yaml_emitter_set_unicode(emitter *yaml_emitter_t, unicode bool) {
- emitter.unicode = unicode
- }
-
- // Set the preferred line break character.
- func yaml_emitter_set_break(emitter *yaml_emitter_t, line_break yaml_break_t) {
- emitter.line_break = line_break
- }
-
- ///*
- // * Destroy a token object.
- // */
- //
- //YAML_DECLARE(void)
- //yaml_token_delete(yaml_token_t *token)
- //{
- // assert(token); // Non-NULL token object expected.
- //
- // switch (token.type)
- // {
- // case YAML_TAG_DIRECTIVE_TOKEN:
- // yaml_free(token.data.tag_directive.handle);
- // yaml_free(token.data.tag_directive.prefix);
- // break;
- //
- // case YAML_ALIAS_TOKEN:
- // yaml_free(token.data.alias.value);
- // break;
- //
- // case YAML_ANCHOR_TOKEN:
- // yaml_free(token.data.anchor.value);
- // break;
- //
- // case YAML_TAG_TOKEN:
- // yaml_free(token.data.tag.handle);
- // yaml_free(token.data.tag.suffix);
- // break;
- //
- // case YAML_SCALAR_TOKEN:
- // yaml_free(token.data.scalar.value);
- // break;
- //
- // default:
- // break;
- // }
- //
- // memset(token, 0, sizeof(yaml_token_t));
- //}
- //
- ///*
- // * Check if a string is a valid UTF-8 sequence.
- // *
- // * Check 'reader.c' for more details on UTF-8 encoding.
- // */
- //
- //static int
- //yaml_check_utf8(yaml_char_t *start, size_t length)
- //{
- // yaml_char_t *end = start+length;
- // yaml_char_t *pointer = start;
- //
- // while (pointer < end) {
- // unsigned char octet;
- // unsigned int width;
- // unsigned int value;
- // size_t k;
- //
- // octet = pointer[0];
- // width = (octet & 0x80) == 0x00 ? 1 :
- // (octet & 0xE0) == 0xC0 ? 2 :
- // (octet & 0xF0) == 0xE0 ? 3 :
- // (octet & 0xF8) == 0xF0 ? 4 : 0;
- // value = (octet & 0x80) == 0x00 ? octet & 0x7F :
- // (octet & 0xE0) == 0xC0 ? octet & 0x1F :
- // (octet & 0xF0) == 0xE0 ? octet & 0x0F :
- // (octet & 0xF8) == 0xF0 ? octet & 0x07 : 0;
- // if (!width) return 0;
- // if (pointer+width > end) return 0;
- // for (k = 1; k < width; k ++) {
- // octet = pointer[k];
- // if ((octet & 0xC0) != 0x80) return 0;
- // value = (value << 6) + (octet & 0x3F);
- // }
- // if (!((width == 1) ||
- // (width == 2 && value >= 0x80) ||
- // (width == 3 && value >= 0x800) ||
- // (width == 4 && value >= 0x10000))) return 0;
- //
- // pointer += width;
- // }
- //
- // return 1;
- //}
- //
-
- // Create STREAM-START.
- func yaml_stream_start_event_initialize(event *yaml_event_t, encoding yaml_encoding_t) {
- *event = yaml_event_t{
- typ: yaml_STREAM_START_EVENT,
- encoding: encoding,
- }
- }
-
- // Create STREAM-END.
- func yaml_stream_end_event_initialize(event *yaml_event_t) {
- *event = yaml_event_t{
- typ: yaml_STREAM_END_EVENT,
- }
- }
-
- // Create DOCUMENT-START.
- func yaml_document_start_event_initialize(
- event *yaml_event_t,
- version_directive *yaml_version_directive_t,
- tag_directives []yaml_tag_directive_t,
- implicit bool,
- ) {
- *event = yaml_event_t{
- typ: yaml_DOCUMENT_START_EVENT,
- version_directive: version_directive,
- tag_directives: tag_directives,
- implicit: implicit,
- }
- }
-
- // Create DOCUMENT-END.
- func yaml_document_end_event_initialize(event *yaml_event_t, implicit bool) {
- *event = yaml_event_t{
- typ: yaml_DOCUMENT_END_EVENT,
- implicit: implicit,
- }
- }
-
- ///*
- // * Create ALIAS.
- // */
- //
- //YAML_DECLARE(int)
- //yaml_alias_event_initialize(event *yaml_event_t, anchor *yaml_char_t)
- //{
- // mark yaml_mark_t = { 0, 0, 0 }
- // anchor_copy *yaml_char_t = NULL
- //
- // assert(event) // Non-NULL event object is expected.
- // assert(anchor) // Non-NULL anchor is expected.
- //
- // if (!yaml_check_utf8(anchor, strlen((char *)anchor))) return 0
- //
- // anchor_copy = yaml_strdup(anchor)
- // if (!anchor_copy)
- // return 0
- //
- // ALIAS_EVENT_INIT(*event, anchor_copy, mark, mark)
- //
- // return 1
- //}
-
- // Create SCALAR.
- func yaml_scalar_event_initialize(event *yaml_event_t, anchor, tag, value []byte, plain_implicit, quoted_implicit bool, style yaml_scalar_style_t) bool {
- *event = yaml_event_t{
- typ: yaml_SCALAR_EVENT,
- anchor: anchor,
- tag: tag,
- value: value,
- implicit: plain_implicit,
- quoted_implicit: quoted_implicit,
- style: yaml_style_t(style),
- }
- return true
- }
-
- // Create SEQUENCE-START.
- func yaml_sequence_start_event_initialize(event *yaml_event_t, anchor, tag []byte, implicit bool, style yaml_sequence_style_t) bool {
- *event = yaml_event_t{
- typ: yaml_SEQUENCE_START_EVENT,
- anchor: anchor,
- tag: tag,
- implicit: implicit,
- style: yaml_style_t(style),
- }
- return true
- }
-
- // Create SEQUENCE-END.
- func yaml_sequence_end_event_initialize(event *yaml_event_t) bool {
- *event = yaml_event_t{
- typ: yaml_SEQUENCE_END_EVENT,
- }
- return true
- }
-
- // Create MAPPING-START.
- func yaml_mapping_start_event_initialize(event *yaml_event_t, anchor, tag []byte, implicit bool, style yaml_mapping_style_t) {
- *event = yaml_event_t{
- typ: yaml_MAPPING_START_EVENT,
- anchor: anchor,
- tag: tag,
- implicit: implicit,
- style: yaml_style_t(style),
- }
- }
-
- // Create MAPPING-END.
- func yaml_mapping_end_event_initialize(event *yaml_event_t) {
- *event = yaml_event_t{
- typ: yaml_MAPPING_END_EVENT,
- }
- }
-
- // Destroy an event object.
- func yaml_event_delete(event *yaml_event_t) {
- *event = yaml_event_t{}
- }
-
- ///*
- // * Create a document object.
- // */
- //
- //YAML_DECLARE(int)
- //yaml_document_initialize(document *yaml_document_t,
- // version_directive *yaml_version_directive_t,
- // tag_directives_start *yaml_tag_directive_t,
- // tag_directives_end *yaml_tag_directive_t,
- // start_implicit int, end_implicit int)
- //{
- // struct {
- // error yaml_error_type_t
- // } context
- // struct {
- // start *yaml_node_t
- // end *yaml_node_t
- // top *yaml_node_t
- // } nodes = { NULL, NULL, NULL }
- // version_directive_copy *yaml_version_directive_t = NULL
- // struct {
- // start *yaml_tag_directive_t
- // end *yaml_tag_directive_t
- // top *yaml_tag_directive_t
- // } tag_directives_copy = { NULL, NULL, NULL }
- // value yaml_tag_directive_t = { NULL, NULL }
- // mark yaml_mark_t = { 0, 0, 0 }
- //
- // assert(document) // Non-NULL document object is expected.
- // assert((tag_directives_start && tag_directives_end) ||
- // (tag_directives_start == tag_directives_end))
- // // Valid tag directives are expected.
- //
- // if (!STACK_INIT(&context, nodes, INITIAL_STACK_SIZE)) goto error
- //
- // if (version_directive) {
- // version_directive_copy = yaml_malloc(sizeof(yaml_version_directive_t))
- // if (!version_directive_copy) goto error
- // version_directive_copy.major = version_directive.major
- // version_directive_copy.minor = version_directive.minor
- // }
- //
- // if (tag_directives_start != tag_directives_end) {
- // tag_directive *yaml_tag_directive_t
- // if (!STACK_INIT(&context, tag_directives_copy, INITIAL_STACK_SIZE))
- // goto error
- // for (tag_directive = tag_directives_start
- // tag_directive != tag_directives_end; tag_directive ++) {
- // assert(tag_directive.handle)
- // assert(tag_directive.prefix)
- // if (!yaml_check_utf8(tag_directive.handle,
- // strlen((char *)tag_directive.handle)))
- // goto error
- // if (!yaml_check_utf8(tag_directive.prefix,
- // strlen((char *)tag_directive.prefix)))
- // goto error
- // value.handle = yaml_strdup(tag_directive.handle)
- // value.prefix = yaml_strdup(tag_directive.prefix)
- // if (!value.handle || !value.prefix) goto error
- // if (!PUSH(&context, tag_directives_copy, value))
- // goto error
- // value.handle = NULL
- // value.prefix = NULL
- // }
- // }
- //
- // DOCUMENT_INIT(*document, nodes.start, nodes.end, version_directive_copy,
- // tag_directives_copy.start, tag_directives_copy.top,
- // start_implicit, end_implicit, mark, mark)
- //
- // return 1
- //
- //error:
- // STACK_DEL(&context, nodes)
- // yaml_free(version_directive_copy)
- // while (!STACK_EMPTY(&context, tag_directives_copy)) {
- // value yaml_tag_directive_t = POP(&context, tag_directives_copy)
- // yaml_free(value.handle)
- // yaml_free(value.prefix)
- // }
- // STACK_DEL(&context, tag_directives_copy)
- // yaml_free(value.handle)
- // yaml_free(value.prefix)
- //
- // return 0
- //}
- //
- ///*
- // * Destroy a document object.
- // */
- //
- //YAML_DECLARE(void)
- //yaml_document_delete(document *yaml_document_t)
- //{
- // struct {
- // error yaml_error_type_t
- // } context
- // tag_directive *yaml_tag_directive_t
- //
- // context.error = YAML_NO_ERROR // Eliminate a compiler warning.
- //
- // assert(document) // Non-NULL document object is expected.
- //
- // while (!STACK_EMPTY(&context, document.nodes)) {
- // node yaml_node_t = POP(&context, document.nodes)
- // yaml_free(node.tag)
- // switch (node.type) {
- // case YAML_SCALAR_NODE:
- // yaml_free(node.data.scalar.value)
- // break
- // case YAML_SEQUENCE_NODE:
- // STACK_DEL(&context, node.data.sequence.items)
- // break
- // case YAML_MAPPING_NODE:
- // STACK_DEL(&context, node.data.mapping.pairs)
- // break
- // default:
- // assert(0) // Should not happen.
- // }
- // }
- // STACK_DEL(&context, document.nodes)
- //
- // yaml_free(document.version_directive)
- // for (tag_directive = document.tag_directives.start
- // tag_directive != document.tag_directives.end
- // tag_directive++) {
- // yaml_free(tag_directive.handle)
- // yaml_free(tag_directive.prefix)
- // }
- // yaml_free(document.tag_directives.start)
- //
- // memset(document, 0, sizeof(yaml_document_t))
- //}
- //
- ///**
- // * Get a document node.
- // */
- //
- //YAML_DECLARE(yaml_node_t *)
- //yaml_document_get_node(document *yaml_document_t, index int)
- //{
- // assert(document) // Non-NULL document object is expected.
- //
- // if (index > 0 && document.nodes.start + index <= document.nodes.top) {
- // return document.nodes.start + index - 1
- // }
- // return NULL
- //}
- //
- ///**
- // * Get the root object.
- // */
- //
- //YAML_DECLARE(yaml_node_t *)
- //yaml_document_get_root_node(document *yaml_document_t)
- //{
- // assert(document) // Non-NULL document object is expected.
- //
- // if (document.nodes.top != document.nodes.start) {
- // return document.nodes.start
- // }
- // return NULL
- //}
- //
- ///*
- // * Add a scalar node to a document.
- // */
- //
- //YAML_DECLARE(int)
- //yaml_document_add_scalar(document *yaml_document_t,
- // tag *yaml_char_t, value *yaml_char_t, length int,
- // style yaml_scalar_style_t)
- //{
- // struct {
- // error yaml_error_type_t
- // } context
- // mark yaml_mark_t = { 0, 0, 0 }
- // tag_copy *yaml_char_t = NULL
- // value_copy *yaml_char_t = NULL
- // node yaml_node_t
- //
- // assert(document) // Non-NULL document object is expected.
- // assert(value) // Non-NULL value is expected.
- //
- // if (!tag) {
- // tag = (yaml_char_t *)YAML_DEFAULT_SCALAR_TAG
- // }
- //
- // if (!yaml_check_utf8(tag, strlen((char *)tag))) goto error
- // tag_copy = yaml_strdup(tag)
- // if (!tag_copy) goto error
- //
- // if (length < 0) {
- // length = strlen((char *)value)
- // }
- //
- // if (!yaml_check_utf8(value, length)) goto error
- // value_copy = yaml_malloc(length+1)
- // if (!value_copy) goto error
- // memcpy(value_copy, value, length)
- // value_copy[length] = '\0'
- //
- // SCALAR_NODE_INIT(node, tag_copy, value_copy, length, style, mark, mark)
- // if (!PUSH(&context, document.nodes, node)) goto error
- //
- // return document.nodes.top - document.nodes.start
- //
- //error:
- // yaml_free(tag_copy)
- // yaml_free(value_copy)
- //
- // return 0
- //}
- //
- ///*
- // * Add a sequence node to a document.
- // */
- //
- //YAML_DECLARE(int)
- //yaml_document_add_sequence(document *yaml_document_t,
- // tag *yaml_char_t, style yaml_sequence_style_t)
- //{
- // struct {
- // error yaml_error_type_t
- // } context
- // mark yaml_mark_t = { 0, 0, 0 }
- // tag_copy *yaml_char_t = NULL
- // struct {
- // start *yaml_node_item_t
- // end *yaml_node_item_t
- // top *yaml_node_item_t
- // } items = { NULL, NULL, NULL }
- // node yaml_node_t
- //
- // assert(document) // Non-NULL document object is expected.
- //
- // if (!tag) {
- // tag = (yaml_char_t *)YAML_DEFAULT_SEQUENCE_TAG
- // }
- //
- // if (!yaml_check_utf8(tag, strlen((char *)tag))) goto error
- // tag_copy = yaml_strdup(tag)
- // if (!tag_copy) goto error
- //
- // if (!STACK_INIT(&context, items, INITIAL_STACK_SIZE)) goto error
- //
- // SEQUENCE_NODE_INIT(node, tag_copy, items.start, items.end,
- // style, mark, mark)
- // if (!PUSH(&context, document.nodes, node)) goto error
- //
- // return document.nodes.top - document.nodes.start
- //
- //error:
- // STACK_DEL(&context, items)
- // yaml_free(tag_copy)
- //
- // return 0
- //}
- //
- ///*
- // * Add a mapping node to a document.
- // */
- //
- //YAML_DECLARE(int)
- //yaml_document_add_mapping(document *yaml_document_t,
- // tag *yaml_char_t, style yaml_mapping_style_t)
- //{
- // struct {
- // error yaml_error_type_t
- // } context
- // mark yaml_mark_t = { 0, 0, 0 }
- // tag_copy *yaml_char_t = NULL
- // struct {
- // start *yaml_node_pair_t
- // end *yaml_node_pair_t
- // top *yaml_node_pair_t
- // } pairs = { NULL, NULL, NULL }
- // node yaml_node_t
- //
- // assert(document) // Non-NULL document object is expected.
- //
- // if (!tag) {
- // tag = (yaml_char_t *)YAML_DEFAULT_MAPPING_TAG
- // }
- //
- // if (!yaml_check_utf8(tag, strlen((char *)tag))) goto error
- // tag_copy = yaml_strdup(tag)
- // if (!tag_copy) goto error
- //
- // if (!STACK_INIT(&context, pairs, INITIAL_STACK_SIZE)) goto error
- //
- // MAPPING_NODE_INIT(node, tag_copy, pairs.start, pairs.end,
- // style, mark, mark)
- // if (!PUSH(&context, document.nodes, node)) goto error
- //
- // return document.nodes.top - document.nodes.start
- //
- //error:
- // STACK_DEL(&context, pairs)
- // yaml_free(tag_copy)
- //
- // return 0
- //}
- //
- ///*
- // * Append an item to a sequence node.
- // */
- //
- //YAML_DECLARE(int)
- //yaml_document_append_sequence_item(document *yaml_document_t,
- // sequence int, item int)
- //{
- // struct {
- // error yaml_error_type_t
- // } context
- //
- // assert(document) // Non-NULL document is required.
- // assert(sequence > 0
- // && document.nodes.start + sequence <= document.nodes.top)
- // // Valid sequence id is required.
- // assert(document.nodes.start[sequence-1].type == YAML_SEQUENCE_NODE)
- // // A sequence node is required.
- // assert(item > 0 && document.nodes.start + item <= document.nodes.top)
- // // Valid item id is required.
- //
- // if (!PUSH(&context,
- // document.nodes.start[sequence-1].data.sequence.items, item))
- // return 0
- //
- // return 1
- //}
- //
- ///*
- // * Append a pair of a key and a value to a mapping node.
- // */
- //
- //YAML_DECLARE(int)
- //yaml_document_append_mapping_pair(document *yaml_document_t,
- // mapping int, key int, value int)
- //{
- // struct {
- // error yaml_error_type_t
- // } context
- //
- // pair yaml_node_pair_t
- //
- // assert(document) // Non-NULL document is required.
- // assert(mapping > 0
- // && document.nodes.start + mapping <= document.nodes.top)
- // // Valid mapping id is required.
- // assert(document.nodes.start[mapping-1].type == YAML_MAPPING_NODE)
- // // A mapping node is required.
- // assert(key > 0 && document.nodes.start + key <= document.nodes.top)
- // // Valid key id is required.
- // assert(value > 0 && document.nodes.start + value <= document.nodes.top)
- // // Valid value id is required.
- //
- // pair.key = key
- // pair.value = value
- //
- // if (!PUSH(&context,
- // document.nodes.start[mapping-1].data.mapping.pairs, pair))
- // return 0
- //
- // return 1
- //}
- //
- //
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