mirror of
https://github.com/ceph/ceph-csi.git
synced 2025-03-08 16:39:29 +00:00
f87d06ed85
Several packages are only used while running the e2e suite. These packages are less important to update, as the they can not influence the final executable that is part of the Ceph-CSI container-image. By moving these dependencies out of the main Ceph-CSI go.mod, it is easier to identify if a reported CVE affects Ceph-CSI, or only the testing (like most of the Kubernetes CVEs). Signed-off-by: Niels de Vos <ndevos@ibm.com>
1259 lines
40 KiB
Go
1259 lines
40 KiB
Go
//
|
|
// 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 (
|
|
"bytes"
|
|
)
|
|
|
|
// The parser implements the following grammar:
|
|
//
|
|
// stream ::= STREAM-START implicit_document? explicit_document* STREAM-END
|
|
// implicit_document ::= block_node DOCUMENT-END*
|
|
// explicit_document ::= DIRECTIVE* DOCUMENT-START block_node? DOCUMENT-END*
|
|
// block_node_or_indentless_sequence ::=
|
|
// ALIAS
|
|
// | properties (block_content | indentless_block_sequence)?
|
|
// | block_content
|
|
// | indentless_block_sequence
|
|
// block_node ::= ALIAS
|
|
// | properties block_content?
|
|
// | block_content
|
|
// flow_node ::= ALIAS
|
|
// | properties flow_content?
|
|
// | flow_content
|
|
// properties ::= TAG ANCHOR? | ANCHOR TAG?
|
|
// block_content ::= block_collection | flow_collection | SCALAR
|
|
// flow_content ::= flow_collection | SCALAR
|
|
// block_collection ::= block_sequence | block_mapping
|
|
// flow_collection ::= flow_sequence | flow_mapping
|
|
// block_sequence ::= BLOCK-SEQUENCE-START (BLOCK-ENTRY block_node?)* BLOCK-END
|
|
// indentless_sequence ::= (BLOCK-ENTRY block_node?)+
|
|
// block_mapping ::= BLOCK-MAPPING_START
|
|
// ((KEY block_node_or_indentless_sequence?)?
|
|
// (VALUE block_node_or_indentless_sequence?)?)*
|
|
// BLOCK-END
|
|
// flow_sequence ::= FLOW-SEQUENCE-START
|
|
// (flow_sequence_entry FLOW-ENTRY)*
|
|
// flow_sequence_entry?
|
|
// FLOW-SEQUENCE-END
|
|
// flow_sequence_entry ::= flow_node | KEY flow_node? (VALUE flow_node?)?
|
|
// flow_mapping ::= FLOW-MAPPING-START
|
|
// (flow_mapping_entry FLOW-ENTRY)*
|
|
// flow_mapping_entry?
|
|
// FLOW-MAPPING-END
|
|
// flow_mapping_entry ::= flow_node | KEY flow_node? (VALUE flow_node?)?
|
|
|
|
// Peek the next token in the token queue.
|
|
func peek_token(parser *yaml_parser_t) *yaml_token_t {
|
|
if parser.token_available || yaml_parser_fetch_more_tokens(parser) {
|
|
token := &parser.tokens[parser.tokens_head]
|
|
yaml_parser_unfold_comments(parser, token)
|
|
return token
|
|
}
|
|
return nil
|
|
}
|
|
|
|
// yaml_parser_unfold_comments walks through the comments queue and joins all
|
|
// comments behind the position of the provided token into the respective
|
|
// top-level comment slices in the parser.
|
|
func yaml_parser_unfold_comments(parser *yaml_parser_t, token *yaml_token_t) {
|
|
for parser.comments_head < len(parser.comments) && token.start_mark.index >= parser.comments[parser.comments_head].token_mark.index {
|
|
comment := &parser.comments[parser.comments_head]
|
|
if len(comment.head) > 0 {
|
|
if token.typ == yaml_BLOCK_END_TOKEN {
|
|
// No heads on ends, so keep comment.head for a follow up token.
|
|
break
|
|
}
|
|
if len(parser.head_comment) > 0 {
|
|
parser.head_comment = append(parser.head_comment, '\n')
|
|
}
|
|
parser.head_comment = append(parser.head_comment, comment.head...)
|
|
}
|
|
if len(comment.foot) > 0 {
|
|
if len(parser.foot_comment) > 0 {
|
|
parser.foot_comment = append(parser.foot_comment, '\n')
|
|
}
|
|
parser.foot_comment = append(parser.foot_comment, comment.foot...)
|
|
}
|
|
if len(comment.line) > 0 {
|
|
if len(parser.line_comment) > 0 {
|
|
parser.line_comment = append(parser.line_comment, '\n')
|
|
}
|
|
parser.line_comment = append(parser.line_comment, comment.line...)
|
|
}
|
|
*comment = yaml_comment_t{}
|
|
parser.comments_head++
|
|
}
|
|
}
|
|
|
|
// Remove the next token from the queue (must be called after peek_token).
|
|
func skip_token(parser *yaml_parser_t) {
|
|
parser.token_available = false
|
|
parser.tokens_parsed++
|
|
parser.stream_end_produced = parser.tokens[parser.tokens_head].typ == yaml_STREAM_END_TOKEN
|
|
parser.tokens_head++
|
|
}
|
|
|
|
// Get the next event.
|
|
func yaml_parser_parse(parser *yaml_parser_t, event *yaml_event_t) bool {
|
|
// Erase the event object.
|
|
*event = yaml_event_t{}
|
|
|
|
// No events after the end of the stream or error.
|
|
if parser.stream_end_produced || parser.error != yaml_NO_ERROR || parser.state == yaml_PARSE_END_STATE {
|
|
return true
|
|
}
|
|
|
|
// Generate the next event.
|
|
return yaml_parser_state_machine(parser, event)
|
|
}
|
|
|
|
// Set parser error.
|
|
func yaml_parser_set_parser_error(parser *yaml_parser_t, problem string, problem_mark yaml_mark_t) bool {
|
|
parser.error = yaml_PARSER_ERROR
|
|
parser.problem = problem
|
|
parser.problem_mark = problem_mark
|
|
return false
|
|
}
|
|
|
|
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 {
|
|
parser.error = yaml_PARSER_ERROR
|
|
parser.context = context
|
|
parser.context_mark = context_mark
|
|
parser.problem = problem
|
|
parser.problem_mark = problem_mark
|
|
return false
|
|
}
|
|
|
|
// State dispatcher.
|
|
func yaml_parser_state_machine(parser *yaml_parser_t, event *yaml_event_t) bool {
|
|
//trace("yaml_parser_state_machine", "state:", parser.state.String())
|
|
|
|
switch parser.state {
|
|
case yaml_PARSE_STREAM_START_STATE:
|
|
return yaml_parser_parse_stream_start(parser, event)
|
|
|
|
case yaml_PARSE_IMPLICIT_DOCUMENT_START_STATE:
|
|
return yaml_parser_parse_document_start(parser, event, true)
|
|
|
|
case yaml_PARSE_DOCUMENT_START_STATE:
|
|
return yaml_parser_parse_document_start(parser, event, false)
|
|
|
|
case yaml_PARSE_DOCUMENT_CONTENT_STATE:
|
|
return yaml_parser_parse_document_content(parser, event)
|
|
|
|
case yaml_PARSE_DOCUMENT_END_STATE:
|
|
return yaml_parser_parse_document_end(parser, event)
|
|
|
|
case yaml_PARSE_BLOCK_NODE_STATE:
|
|
return yaml_parser_parse_node(parser, event, true, false)
|
|
|
|
case yaml_PARSE_BLOCK_NODE_OR_INDENTLESS_SEQUENCE_STATE:
|
|
return yaml_parser_parse_node(parser, event, true, true)
|
|
|
|
case yaml_PARSE_FLOW_NODE_STATE:
|
|
return yaml_parser_parse_node(parser, event, false, false)
|
|
|
|
case yaml_PARSE_BLOCK_SEQUENCE_FIRST_ENTRY_STATE:
|
|
return yaml_parser_parse_block_sequence_entry(parser, event, true)
|
|
|
|
case yaml_PARSE_BLOCK_SEQUENCE_ENTRY_STATE:
|
|
return yaml_parser_parse_block_sequence_entry(parser, event, false)
|
|
|
|
case yaml_PARSE_INDENTLESS_SEQUENCE_ENTRY_STATE:
|
|
return yaml_parser_parse_indentless_sequence_entry(parser, event)
|
|
|
|
case yaml_PARSE_BLOCK_MAPPING_FIRST_KEY_STATE:
|
|
return yaml_parser_parse_block_mapping_key(parser, event, true)
|
|
|
|
case yaml_PARSE_BLOCK_MAPPING_KEY_STATE:
|
|
return yaml_parser_parse_block_mapping_key(parser, event, false)
|
|
|
|
case yaml_PARSE_BLOCK_MAPPING_VALUE_STATE:
|
|
return yaml_parser_parse_block_mapping_value(parser, event)
|
|
|
|
case yaml_PARSE_FLOW_SEQUENCE_FIRST_ENTRY_STATE:
|
|
return yaml_parser_parse_flow_sequence_entry(parser, event, true)
|
|
|
|
case yaml_PARSE_FLOW_SEQUENCE_ENTRY_STATE:
|
|
return yaml_parser_parse_flow_sequence_entry(parser, event, false)
|
|
|
|
case yaml_PARSE_FLOW_SEQUENCE_ENTRY_MAPPING_KEY_STATE:
|
|
return yaml_parser_parse_flow_sequence_entry_mapping_key(parser, event)
|
|
|
|
case yaml_PARSE_FLOW_SEQUENCE_ENTRY_MAPPING_VALUE_STATE:
|
|
return yaml_parser_parse_flow_sequence_entry_mapping_value(parser, event)
|
|
|
|
case yaml_PARSE_FLOW_SEQUENCE_ENTRY_MAPPING_END_STATE:
|
|
return yaml_parser_parse_flow_sequence_entry_mapping_end(parser, event)
|
|
|
|
case yaml_PARSE_FLOW_MAPPING_FIRST_KEY_STATE:
|
|
return yaml_parser_parse_flow_mapping_key(parser, event, true)
|
|
|
|
case yaml_PARSE_FLOW_MAPPING_KEY_STATE:
|
|
return yaml_parser_parse_flow_mapping_key(parser, event, false)
|
|
|
|
case yaml_PARSE_FLOW_MAPPING_VALUE_STATE:
|
|
return yaml_parser_parse_flow_mapping_value(parser, event, false)
|
|
|
|
case yaml_PARSE_FLOW_MAPPING_EMPTY_VALUE_STATE:
|
|
return yaml_parser_parse_flow_mapping_value(parser, event, true)
|
|
|
|
default:
|
|
panic("invalid parser state")
|
|
}
|
|
}
|
|
|
|
// Parse the production:
|
|
// stream ::= STREAM-START implicit_document? explicit_document* STREAM-END
|
|
// ************
|
|
func yaml_parser_parse_stream_start(parser *yaml_parser_t, event *yaml_event_t) bool {
|
|
token := peek_token(parser)
|
|
if token == nil {
|
|
return false
|
|
}
|
|
if token.typ != yaml_STREAM_START_TOKEN {
|
|
return yaml_parser_set_parser_error(parser, "did not find expected <stream-start>", token.start_mark)
|
|
}
|
|
parser.state = yaml_PARSE_IMPLICIT_DOCUMENT_START_STATE
|
|
*event = yaml_event_t{
|
|
typ: yaml_STREAM_START_EVENT,
|
|
start_mark: token.start_mark,
|
|
end_mark: token.end_mark,
|
|
encoding: token.encoding,
|
|
}
|
|
skip_token(parser)
|
|
return true
|
|
}
|
|
|
|
// Parse the productions:
|
|
// implicit_document ::= block_node DOCUMENT-END*
|
|
// *
|
|
// explicit_document ::= DIRECTIVE* DOCUMENT-START block_node? DOCUMENT-END*
|
|
// *************************
|
|
func yaml_parser_parse_document_start(parser *yaml_parser_t, event *yaml_event_t, implicit bool) bool {
|
|
|
|
token := peek_token(parser)
|
|
if token == nil {
|
|
return false
|
|
}
|
|
|
|
// Parse extra document end indicators.
|
|
if !implicit {
|
|
for token.typ == yaml_DOCUMENT_END_TOKEN {
|
|
skip_token(parser)
|
|
token = peek_token(parser)
|
|
if token == nil {
|
|
return false
|
|
}
|
|
}
|
|
}
|
|
|
|
if implicit && token.typ != yaml_VERSION_DIRECTIVE_TOKEN &&
|
|
token.typ != yaml_TAG_DIRECTIVE_TOKEN &&
|
|
token.typ != yaml_DOCUMENT_START_TOKEN &&
|
|
token.typ != yaml_STREAM_END_TOKEN {
|
|
// Parse an implicit document.
|
|
if !yaml_parser_process_directives(parser, nil, nil) {
|
|
return false
|
|
}
|
|
parser.states = append(parser.states, yaml_PARSE_DOCUMENT_END_STATE)
|
|
parser.state = yaml_PARSE_BLOCK_NODE_STATE
|
|
|
|
var head_comment []byte
|
|
if len(parser.head_comment) > 0 {
|
|
// [Go] Scan the header comment backwards, and if an empty line is found, break
|
|
// the header so the part before the last empty line goes into the
|
|
// document header, while the bottom of it goes into a follow up event.
|
|
for i := len(parser.head_comment) - 1; i > 0; i-- {
|
|
if parser.head_comment[i] == '\n' {
|
|
if i == len(parser.head_comment)-1 {
|
|
head_comment = parser.head_comment[:i]
|
|
parser.head_comment = parser.head_comment[i+1:]
|
|
break
|
|
} else if parser.head_comment[i-1] == '\n' {
|
|
head_comment = parser.head_comment[:i-1]
|
|
parser.head_comment = parser.head_comment[i+1:]
|
|
break
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
*event = yaml_event_t{
|
|
typ: yaml_DOCUMENT_START_EVENT,
|
|
start_mark: token.start_mark,
|
|
end_mark: token.end_mark,
|
|
|
|
head_comment: head_comment,
|
|
}
|
|
|
|
} else if token.typ != yaml_STREAM_END_TOKEN {
|
|
// Parse an explicit document.
|
|
var version_directive *yaml_version_directive_t
|
|
var tag_directives []yaml_tag_directive_t
|
|
start_mark := token.start_mark
|
|
if !yaml_parser_process_directives(parser, &version_directive, &tag_directives) {
|
|
return false
|
|
}
|
|
token = peek_token(parser)
|
|
if token == nil {
|
|
return false
|
|
}
|
|
if token.typ != yaml_DOCUMENT_START_TOKEN {
|
|
yaml_parser_set_parser_error(parser,
|
|
"did not find expected <document start>", token.start_mark)
|
|
return false
|
|
}
|
|
parser.states = append(parser.states, yaml_PARSE_DOCUMENT_END_STATE)
|
|
parser.state = yaml_PARSE_DOCUMENT_CONTENT_STATE
|
|
end_mark := token.end_mark
|
|
|
|
*event = yaml_event_t{
|
|
typ: yaml_DOCUMENT_START_EVENT,
|
|
start_mark: start_mark,
|
|
end_mark: end_mark,
|
|
version_directive: version_directive,
|
|
tag_directives: tag_directives,
|
|
implicit: false,
|
|
}
|
|
skip_token(parser)
|
|
|
|
} else {
|
|
// Parse the stream end.
|
|
parser.state = yaml_PARSE_END_STATE
|
|
*event = yaml_event_t{
|
|
typ: yaml_STREAM_END_EVENT,
|
|
start_mark: token.start_mark,
|
|
end_mark: token.end_mark,
|
|
}
|
|
skip_token(parser)
|
|
}
|
|
|
|
return true
|
|
}
|
|
|
|
// Parse the productions:
|
|
// explicit_document ::= DIRECTIVE* DOCUMENT-START block_node? DOCUMENT-END*
|
|
// ***********
|
|
//
|
|
func yaml_parser_parse_document_content(parser *yaml_parser_t, event *yaml_event_t) bool {
|
|
token := peek_token(parser)
|
|
if token == nil {
|
|
return false
|
|
}
|
|
|
|
if token.typ == yaml_VERSION_DIRECTIVE_TOKEN ||
|
|
token.typ == yaml_TAG_DIRECTIVE_TOKEN ||
|
|
token.typ == yaml_DOCUMENT_START_TOKEN ||
|
|
token.typ == yaml_DOCUMENT_END_TOKEN ||
|
|
token.typ == yaml_STREAM_END_TOKEN {
|
|
parser.state = parser.states[len(parser.states)-1]
|
|
parser.states = parser.states[:len(parser.states)-1]
|
|
return yaml_parser_process_empty_scalar(parser, event,
|
|
token.start_mark)
|
|
}
|
|
return yaml_parser_parse_node(parser, event, true, false)
|
|
}
|
|
|
|
// Parse the productions:
|
|
// implicit_document ::= block_node DOCUMENT-END*
|
|
// *************
|
|
// explicit_document ::= DIRECTIVE* DOCUMENT-START block_node? DOCUMENT-END*
|
|
//
|
|
func yaml_parser_parse_document_end(parser *yaml_parser_t, event *yaml_event_t) bool {
|
|
token := peek_token(parser)
|
|
if token == nil {
|
|
return false
|
|
}
|
|
|
|
start_mark := token.start_mark
|
|
end_mark := token.start_mark
|
|
|
|
implicit := true
|
|
if token.typ == yaml_DOCUMENT_END_TOKEN {
|
|
end_mark = token.end_mark
|
|
skip_token(parser)
|
|
implicit = false
|
|
}
|
|
|
|
parser.tag_directives = parser.tag_directives[:0]
|
|
|
|
parser.state = yaml_PARSE_DOCUMENT_START_STATE
|
|
*event = yaml_event_t{
|
|
typ: yaml_DOCUMENT_END_EVENT,
|
|
start_mark: start_mark,
|
|
end_mark: end_mark,
|
|
implicit: implicit,
|
|
}
|
|
yaml_parser_set_event_comments(parser, event)
|
|
if len(event.head_comment) > 0 && len(event.foot_comment) == 0 {
|
|
event.foot_comment = event.head_comment
|
|
event.head_comment = nil
|
|
}
|
|
return true
|
|
}
|
|
|
|
func yaml_parser_set_event_comments(parser *yaml_parser_t, event *yaml_event_t) {
|
|
event.head_comment = parser.head_comment
|
|
event.line_comment = parser.line_comment
|
|
event.foot_comment = parser.foot_comment
|
|
parser.head_comment = nil
|
|
parser.line_comment = nil
|
|
parser.foot_comment = nil
|
|
parser.tail_comment = nil
|
|
parser.stem_comment = nil
|
|
}
|
|
|
|
// Parse the productions:
|
|
// block_node_or_indentless_sequence ::=
|
|
// ALIAS
|
|
// *****
|
|
// | properties (block_content | indentless_block_sequence)?
|
|
// ********** *
|
|
// | block_content | indentless_block_sequence
|
|
// *
|
|
// block_node ::= ALIAS
|
|
// *****
|
|
// | properties block_content?
|
|
// ********** *
|
|
// | block_content
|
|
// *
|
|
// flow_node ::= ALIAS
|
|
// *****
|
|
// | properties flow_content?
|
|
// ********** *
|
|
// | flow_content
|
|
// *
|
|
// properties ::= TAG ANCHOR? | ANCHOR TAG?
|
|
// *************************
|
|
// block_content ::= block_collection | flow_collection | SCALAR
|
|
// ******
|
|
// flow_content ::= flow_collection | SCALAR
|
|
// ******
|
|
func yaml_parser_parse_node(parser *yaml_parser_t, event *yaml_event_t, block, indentless_sequence bool) bool {
|
|
//defer trace("yaml_parser_parse_node", "block:", block, "indentless_sequence:", indentless_sequence)()
|
|
|
|
token := peek_token(parser)
|
|
if token == nil {
|
|
return false
|
|
}
|
|
|
|
if token.typ == yaml_ALIAS_TOKEN {
|
|
parser.state = parser.states[len(parser.states)-1]
|
|
parser.states = parser.states[:len(parser.states)-1]
|
|
*event = yaml_event_t{
|
|
typ: yaml_ALIAS_EVENT,
|
|
start_mark: token.start_mark,
|
|
end_mark: token.end_mark,
|
|
anchor: token.value,
|
|
}
|
|
yaml_parser_set_event_comments(parser, event)
|
|
skip_token(parser)
|
|
return true
|
|
}
|
|
|
|
start_mark := token.start_mark
|
|
end_mark := token.start_mark
|
|
|
|
var tag_token bool
|
|
var tag_handle, tag_suffix, anchor []byte
|
|
var tag_mark yaml_mark_t
|
|
if token.typ == yaml_ANCHOR_TOKEN {
|
|
anchor = token.value
|
|
start_mark = token.start_mark
|
|
end_mark = token.end_mark
|
|
skip_token(parser)
|
|
token = peek_token(parser)
|
|
if token == nil {
|
|
return false
|
|
}
|
|
if token.typ == yaml_TAG_TOKEN {
|
|
tag_token = true
|
|
tag_handle = token.value
|
|
tag_suffix = token.suffix
|
|
tag_mark = token.start_mark
|
|
end_mark = token.end_mark
|
|
skip_token(parser)
|
|
token = peek_token(parser)
|
|
if token == nil {
|
|
return false
|
|
}
|
|
}
|
|
} else if token.typ == yaml_TAG_TOKEN {
|
|
tag_token = true
|
|
tag_handle = token.value
|
|
tag_suffix = token.suffix
|
|
start_mark = token.start_mark
|
|
tag_mark = token.start_mark
|
|
end_mark = token.end_mark
|
|
skip_token(parser)
|
|
token = peek_token(parser)
|
|
if token == nil {
|
|
return false
|
|
}
|
|
if token.typ == yaml_ANCHOR_TOKEN {
|
|
anchor = token.value
|
|
end_mark = token.end_mark
|
|
skip_token(parser)
|
|
token = peek_token(parser)
|
|
if token == nil {
|
|
return false
|
|
}
|
|
}
|
|
}
|
|
|
|
var tag []byte
|
|
if tag_token {
|
|
if len(tag_handle) == 0 {
|
|
tag = tag_suffix
|
|
tag_suffix = nil
|
|
} else {
|
|
for i := range parser.tag_directives {
|
|
if bytes.Equal(parser.tag_directives[i].handle, tag_handle) {
|
|
tag = append([]byte(nil), parser.tag_directives[i].prefix...)
|
|
tag = append(tag, tag_suffix...)
|
|
break
|
|
}
|
|
}
|
|
if len(tag) == 0 {
|
|
yaml_parser_set_parser_error_context(parser,
|
|
"while parsing a node", start_mark,
|
|
"found undefined tag handle", tag_mark)
|
|
return false
|
|
}
|
|
}
|
|
}
|
|
|
|
implicit := len(tag) == 0
|
|
if indentless_sequence && token.typ == yaml_BLOCK_ENTRY_TOKEN {
|
|
end_mark = token.end_mark
|
|
parser.state = yaml_PARSE_INDENTLESS_SEQUENCE_ENTRY_STATE
|
|
*event = yaml_event_t{
|
|
typ: yaml_SEQUENCE_START_EVENT,
|
|
start_mark: start_mark,
|
|
end_mark: end_mark,
|
|
anchor: anchor,
|
|
tag: tag,
|
|
implicit: implicit,
|
|
style: yaml_style_t(yaml_BLOCK_SEQUENCE_STYLE),
|
|
}
|
|
return true
|
|
}
|
|
if token.typ == yaml_SCALAR_TOKEN {
|
|
var plain_implicit, quoted_implicit bool
|
|
end_mark = token.end_mark
|
|
if (len(tag) == 0 && token.style == yaml_PLAIN_SCALAR_STYLE) || (len(tag) == 1 && tag[0] == '!') {
|
|
plain_implicit = true
|
|
} else if len(tag) == 0 {
|
|
quoted_implicit = true
|
|
}
|
|
parser.state = parser.states[len(parser.states)-1]
|
|
parser.states = parser.states[:len(parser.states)-1]
|
|
|
|
*event = yaml_event_t{
|
|
typ: yaml_SCALAR_EVENT,
|
|
start_mark: start_mark,
|
|
end_mark: end_mark,
|
|
anchor: anchor,
|
|
tag: tag,
|
|
value: token.value,
|
|
implicit: plain_implicit,
|
|
quoted_implicit: quoted_implicit,
|
|
style: yaml_style_t(token.style),
|
|
}
|
|
yaml_parser_set_event_comments(parser, event)
|
|
skip_token(parser)
|
|
return true
|
|
}
|
|
if token.typ == yaml_FLOW_SEQUENCE_START_TOKEN {
|
|
// [Go] Some of the events below can be merged as they differ only on style.
|
|
end_mark = token.end_mark
|
|
parser.state = yaml_PARSE_FLOW_SEQUENCE_FIRST_ENTRY_STATE
|
|
*event = yaml_event_t{
|
|
typ: yaml_SEQUENCE_START_EVENT,
|
|
start_mark: start_mark,
|
|
end_mark: end_mark,
|
|
anchor: anchor,
|
|
tag: tag,
|
|
implicit: implicit,
|
|
style: yaml_style_t(yaml_FLOW_SEQUENCE_STYLE),
|
|
}
|
|
yaml_parser_set_event_comments(parser, event)
|
|
return true
|
|
}
|
|
if token.typ == yaml_FLOW_MAPPING_START_TOKEN {
|
|
end_mark = token.end_mark
|
|
parser.state = yaml_PARSE_FLOW_MAPPING_FIRST_KEY_STATE
|
|
*event = yaml_event_t{
|
|
typ: yaml_MAPPING_START_EVENT,
|
|
start_mark: start_mark,
|
|
end_mark: end_mark,
|
|
anchor: anchor,
|
|
tag: tag,
|
|
implicit: implicit,
|
|
style: yaml_style_t(yaml_FLOW_MAPPING_STYLE),
|
|
}
|
|
yaml_parser_set_event_comments(parser, event)
|
|
return true
|
|
}
|
|
if block && token.typ == yaml_BLOCK_SEQUENCE_START_TOKEN {
|
|
end_mark = token.end_mark
|
|
parser.state = yaml_PARSE_BLOCK_SEQUENCE_FIRST_ENTRY_STATE
|
|
*event = yaml_event_t{
|
|
typ: yaml_SEQUENCE_START_EVENT,
|
|
start_mark: start_mark,
|
|
end_mark: end_mark,
|
|
anchor: anchor,
|
|
tag: tag,
|
|
implicit: implicit,
|
|
style: yaml_style_t(yaml_BLOCK_SEQUENCE_STYLE),
|
|
}
|
|
if parser.stem_comment != nil {
|
|
event.head_comment = parser.stem_comment
|
|
parser.stem_comment = nil
|
|
}
|
|
return true
|
|
}
|
|
if block && token.typ == yaml_BLOCK_MAPPING_START_TOKEN {
|
|
end_mark = token.end_mark
|
|
parser.state = yaml_PARSE_BLOCK_MAPPING_FIRST_KEY_STATE
|
|
*event = yaml_event_t{
|
|
typ: yaml_MAPPING_START_EVENT,
|
|
start_mark: start_mark,
|
|
end_mark: end_mark,
|
|
anchor: anchor,
|
|
tag: tag,
|
|
implicit: implicit,
|
|
style: yaml_style_t(yaml_BLOCK_MAPPING_STYLE),
|
|
}
|
|
if parser.stem_comment != nil {
|
|
event.head_comment = parser.stem_comment
|
|
parser.stem_comment = nil
|
|
}
|
|
return true
|
|
}
|
|
if len(anchor) > 0 || len(tag) > 0 {
|
|
parser.state = parser.states[len(parser.states)-1]
|
|
parser.states = parser.states[:len(parser.states)-1]
|
|
|
|
*event = yaml_event_t{
|
|
typ: yaml_SCALAR_EVENT,
|
|
start_mark: start_mark,
|
|
end_mark: end_mark,
|
|
anchor: anchor,
|
|
tag: tag,
|
|
implicit: implicit,
|
|
quoted_implicit: false,
|
|
style: yaml_style_t(yaml_PLAIN_SCALAR_STYLE),
|
|
}
|
|
return true
|
|
}
|
|
|
|
context := "while parsing a flow node"
|
|
if block {
|
|
context = "while parsing a block node"
|
|
}
|
|
yaml_parser_set_parser_error_context(parser, context, start_mark,
|
|
"did not find expected node content", token.start_mark)
|
|
return false
|
|
}
|
|
|
|
// Parse the productions:
|
|
// block_sequence ::= BLOCK-SEQUENCE-START (BLOCK-ENTRY block_node?)* BLOCK-END
|
|
// ******************** *********** * *********
|
|
//
|
|
func yaml_parser_parse_block_sequence_entry(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
|
|
}
|
|
|
|
if token.typ == yaml_BLOCK_ENTRY_TOKEN {
|
|
mark := token.end_mark
|
|
prior_head_len := len(parser.head_comment)
|
|
skip_token(parser)
|
|
yaml_parser_split_stem_comment(parser, prior_head_len)
|
|
token = peek_token(parser)
|
|
if token == nil {
|
|
return false
|
|
}
|
|
if token.typ != yaml_BLOCK_ENTRY_TOKEN && token.typ != yaml_BLOCK_END_TOKEN {
|
|
parser.states = append(parser.states, yaml_PARSE_BLOCK_SEQUENCE_ENTRY_STATE)
|
|
return yaml_parser_parse_node(parser, event, true, false)
|
|
} else {
|
|
parser.state = yaml_PARSE_BLOCK_SEQUENCE_ENTRY_STATE
|
|
return yaml_parser_process_empty_scalar(parser, event, mark)
|
|
}
|
|
}
|
|
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_SEQUENCE_END_EVENT,
|
|
start_mark: token.start_mark,
|
|
end_mark: token.end_mark,
|
|
}
|
|
|
|
skip_token(parser)
|
|
return true
|
|
}
|
|
|
|
context_mark := parser.marks[len(parser.marks)-1]
|
|
parser.marks = parser.marks[:len(parser.marks)-1]
|
|
return yaml_parser_set_parser_error_context(parser,
|
|
"while parsing a block collection", context_mark,
|
|
"did not find expected '-' indicator", token.start_mark)
|
|
}
|
|
|
|
// Parse the productions:
|
|
// indentless_sequence ::= (BLOCK-ENTRY block_node?)+
|
|
// *********** *
|
|
func yaml_parser_parse_indentless_sequence_entry(parser *yaml_parser_t, event *yaml_event_t) bool {
|
|
token := peek_token(parser)
|
|
if token == nil {
|
|
return false
|
|
}
|
|
|
|
if token.typ == yaml_BLOCK_ENTRY_TOKEN {
|
|
mark := token.end_mark
|
|
prior_head_len := len(parser.head_comment)
|
|
skip_token(parser)
|
|
yaml_parser_split_stem_comment(parser, prior_head_len)
|
|
token = peek_token(parser)
|
|
if token == nil {
|
|
return false
|
|
}
|
|
if token.typ != yaml_BLOCK_ENTRY_TOKEN &&
|
|
token.typ != yaml_KEY_TOKEN &&
|
|
token.typ != yaml_VALUE_TOKEN &&
|
|
token.typ != yaml_BLOCK_END_TOKEN {
|
|
parser.states = append(parser.states, yaml_PARSE_INDENTLESS_SEQUENCE_ENTRY_STATE)
|
|
return yaml_parser_parse_node(parser, event, true, false)
|
|
}
|
|
parser.state = yaml_PARSE_INDENTLESS_SEQUENCE_ENTRY_STATE
|
|
return yaml_parser_process_empty_scalar(parser, event, mark)
|
|
}
|
|
parser.state = parser.states[len(parser.states)-1]
|
|
parser.states = parser.states[:len(parser.states)-1]
|
|
|
|
*event = yaml_event_t{
|
|
typ: yaml_SEQUENCE_END_EVENT,
|
|
start_mark: token.start_mark,
|
|
end_mark: token.start_mark, // [Go] Shouldn't this be token.end_mark?
|
|
}
|
|
return true
|
|
}
|
|
|
|
// Split stem comment from head comment.
|
|
//
|
|
// When a sequence or map is found under a sequence entry, the former head comment
|
|
// is assigned to the underlying sequence or map as a whole, not the individual
|
|
// sequence or map entry as would be expected otherwise. To handle this case the
|
|
// previous head comment is moved aside as the stem comment.
|
|
func yaml_parser_split_stem_comment(parser *yaml_parser_t, stem_len int) {
|
|
if stem_len == 0 {
|
|
return
|
|
}
|
|
|
|
token := peek_token(parser)
|
|
if token == nil || token.typ != yaml_BLOCK_SEQUENCE_START_TOKEN && token.typ != yaml_BLOCK_MAPPING_START_TOKEN {
|
|
return
|
|
}
|
|
|
|
parser.stem_comment = parser.head_comment[:stem_len]
|
|
if len(parser.head_comment) == stem_len {
|
|
parser.head_comment = nil
|
|
} else {
|
|
// Copy suffix to prevent very strange bugs if someone ever appends
|
|
// further bytes to the prefix in the stem_comment slice above.
|
|
parser.head_comment = append([]byte(nil), parser.head_comment[stem_len+1:]...)
|
|
}
|
|
}
|
|
|
|
// Parse the productions:
|
|
// block_mapping ::= BLOCK-MAPPING_START
|
|
// *******************
|
|
// ((KEY block_node_or_indentless_sequence?)?
|
|
// *** *
|
|
// (VALUE block_node_or_indentless_sequence?)?)*
|
|
//
|
|
// BLOCK-END
|
|
// *********
|
|
//
|
|
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
|
|
}
|
|
|
|
context_mark := parser.marks[len(parser.marks)-1]
|
|
parser.marks = parser.marks[:len(parser.marks)-1]
|
|
return yaml_parser_set_parser_error_context(parser,
|
|
"while parsing a block mapping", context_mark,
|
|
"did not find expected key", token.start_mark)
|
|
}
|
|
|
|
// Parse the productions:
|
|
// block_mapping ::= BLOCK-MAPPING_START
|
|
//
|
|
// ((KEY block_node_or_indentless_sequence?)?
|
|
//
|
|
// (VALUE block_node_or_indentless_sequence?)?)*
|
|
// ***** *
|
|
// BLOCK-END
|
|
//
|
|
//
|
|
func yaml_parser_parse_block_mapping_value(parser *yaml_parser_t, event *yaml_event_t) bool {
|
|
token := peek_token(parser)
|
|
if token == nil {
|
|
return false
|
|
}
|
|
if token.typ == yaml_VALUE_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_KEY_STATE)
|
|
return yaml_parser_parse_node(parser, event, true, true)
|
|
}
|
|
parser.state = yaml_PARSE_BLOCK_MAPPING_KEY_STATE
|
|
return yaml_parser_process_empty_scalar(parser, event, mark)
|
|
}
|
|
parser.state = yaml_PARSE_BLOCK_MAPPING_KEY_STATE
|
|
return yaml_parser_process_empty_scalar(parser, event, token.start_mark)
|
|
}
|
|
|
|
// Parse the productions:
|
|
// flow_sequence ::= FLOW-SEQUENCE-START
|
|
// *******************
|
|
// (flow_sequence_entry FLOW-ENTRY)*
|
|
// * **********
|
|
// flow_sequence_entry?
|
|
// *
|
|
// FLOW-SEQUENCE-END
|
|
// *****************
|
|
// flow_sequence_entry ::= flow_node | KEY flow_node? (VALUE flow_node?)?
|
|
// *
|
|
//
|
|
func yaml_parser_parse_flow_sequence_entry(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
|
|
}
|
|
if token.typ != yaml_FLOW_SEQUENCE_END_TOKEN {
|
|
if !first {
|
|
if token.typ == yaml_FLOW_ENTRY_TOKEN {
|
|
skip_token(parser)
|
|
token = peek_token(parser)
|
|
if token == nil {
|
|
return false
|
|
}
|
|
} else {
|
|
context_mark := parser.marks[len(parser.marks)-1]
|
|
parser.marks = parser.marks[:len(parser.marks)-1]
|
|
return yaml_parser_set_parser_error_context(parser,
|
|
"while parsing a flow sequence", context_mark,
|
|
"did not find expected ',' or ']'", token.start_mark)
|
|
}
|
|
}
|
|
|
|
if token.typ == yaml_KEY_TOKEN {
|
|
parser.state = yaml_PARSE_FLOW_SEQUENCE_ENTRY_MAPPING_KEY_STATE
|
|
*event = yaml_event_t{
|
|
typ: yaml_MAPPING_START_EVENT,
|
|
start_mark: token.start_mark,
|
|
end_mark: token.end_mark,
|
|
implicit: true,
|
|
style: yaml_style_t(yaml_FLOW_MAPPING_STYLE),
|
|
}
|
|
skip_token(parser)
|
|
return true
|
|
} else if token.typ != yaml_FLOW_SEQUENCE_END_TOKEN {
|
|
parser.states = append(parser.states, yaml_PARSE_FLOW_SEQUENCE_ENTRY_STATE)
|
|
return yaml_parser_parse_node(parser, event, false, false)
|
|
}
|
|
}
|
|
|
|
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_SEQUENCE_END_EVENT,
|
|
start_mark: token.start_mark,
|
|
end_mark: token.end_mark,
|
|
}
|
|
yaml_parser_set_event_comments(parser, event)
|
|
|
|
skip_token(parser)
|
|
return true
|
|
}
|
|
|
|
//
|
|
// Parse the productions:
|
|
// flow_sequence_entry ::= flow_node | KEY flow_node? (VALUE flow_node?)?
|
|
// *** *
|
|
//
|
|
func yaml_parser_parse_flow_sequence_entry_mapping_key(parser *yaml_parser_t, event *yaml_event_t) bool {
|
|
token := peek_token(parser)
|
|
if token == nil {
|
|
return false
|
|
}
|
|
if token.typ != yaml_VALUE_TOKEN &&
|
|
token.typ != yaml_FLOW_ENTRY_TOKEN &&
|
|
token.typ != yaml_FLOW_SEQUENCE_END_TOKEN {
|
|
parser.states = append(parser.states, yaml_PARSE_FLOW_SEQUENCE_ENTRY_MAPPING_VALUE_STATE)
|
|
return yaml_parser_parse_node(parser, event, false, false)
|
|
}
|
|
mark := token.end_mark
|
|
skip_token(parser)
|
|
parser.state = yaml_PARSE_FLOW_SEQUENCE_ENTRY_MAPPING_VALUE_STATE
|
|
return yaml_parser_process_empty_scalar(parser, event, mark)
|
|
}
|
|
|
|
// Parse the productions:
|
|
// flow_sequence_entry ::= flow_node | KEY flow_node? (VALUE flow_node?)?
|
|
// ***** *
|
|
//
|
|
func yaml_parser_parse_flow_sequence_entry_mapping_value(parser *yaml_parser_t, event *yaml_event_t) bool {
|
|
token := peek_token(parser)
|
|
if token == nil {
|
|
return false
|
|
}
|
|
if token.typ == yaml_VALUE_TOKEN {
|
|
skip_token(parser)
|
|
token := peek_token(parser)
|
|
if token == nil {
|
|
return false
|
|
}
|
|
if token.typ != yaml_FLOW_ENTRY_TOKEN && token.typ != yaml_FLOW_SEQUENCE_END_TOKEN {
|
|
parser.states = append(parser.states, yaml_PARSE_FLOW_SEQUENCE_ENTRY_MAPPING_END_STATE)
|
|
return yaml_parser_parse_node(parser, event, false, false)
|
|
}
|
|
}
|
|
parser.state = yaml_PARSE_FLOW_SEQUENCE_ENTRY_MAPPING_END_STATE
|
|
return yaml_parser_process_empty_scalar(parser, event, token.start_mark)
|
|
}
|
|
|
|
// Parse the productions:
|
|
// flow_sequence_entry ::= flow_node | KEY flow_node? (VALUE flow_node?)?
|
|
// *
|
|
//
|
|
func yaml_parser_parse_flow_sequence_entry_mapping_end(parser *yaml_parser_t, event *yaml_event_t) bool {
|
|
token := peek_token(parser)
|
|
if token == nil {
|
|
return false
|
|
}
|
|
parser.state = yaml_PARSE_FLOW_SEQUENCE_ENTRY_STATE
|
|
*event = yaml_event_t{
|
|
typ: yaml_MAPPING_END_EVENT,
|
|
start_mark: token.start_mark,
|
|
end_mark: token.start_mark, // [Go] Shouldn't this be end_mark?
|
|
}
|
|
return true
|
|
}
|
|
|
|
// Parse the productions:
|
|
// flow_mapping ::= FLOW-MAPPING-START
|
|
// ******************
|
|
// (flow_mapping_entry FLOW-ENTRY)*
|
|
// * **********
|
|
// flow_mapping_entry?
|
|
// ******************
|
|
// FLOW-MAPPING-END
|
|
// ****************
|
|
// flow_mapping_entry ::= flow_node | KEY flow_node? (VALUE flow_node?)?
|
|
// * *** *
|
|
//
|
|
func yaml_parser_parse_flow_mapping_key(parser *yaml_parser_t, event *yaml_event_t, first bool) bool {
|
|
if first {
|
|
token := peek_token(parser)
|
|
parser.marks = append(parser.marks, token.start_mark)
|
|
skip_token(parser)
|
|
}
|
|
|
|
token := peek_token(parser)
|
|
if token == nil {
|
|
return false
|
|
}
|
|
|
|
if token.typ != yaml_FLOW_MAPPING_END_TOKEN {
|
|
if !first {
|
|
if token.typ == yaml_FLOW_ENTRY_TOKEN {
|
|
skip_token(parser)
|
|
token = peek_token(parser)
|
|
if token == nil {
|
|
return false
|
|
}
|
|
} else {
|
|
context_mark := parser.marks[len(parser.marks)-1]
|
|
parser.marks = parser.marks[:len(parser.marks)-1]
|
|
return yaml_parser_set_parser_error_context(parser,
|
|
"while parsing a flow mapping", context_mark,
|
|
"did not find expected ',' or '}'", token.start_mark)
|
|
}
|
|
}
|
|
|
|
if token.typ == yaml_KEY_TOKEN {
|
|
skip_token(parser)
|
|
token = peek_token(parser)
|
|
if token == nil {
|
|
return false
|
|
}
|
|
if token.typ != yaml_VALUE_TOKEN &&
|
|
token.typ != yaml_FLOW_ENTRY_TOKEN &&
|
|
token.typ != yaml_FLOW_MAPPING_END_TOKEN {
|
|
parser.states = append(parser.states, yaml_PARSE_FLOW_MAPPING_VALUE_STATE)
|
|
return yaml_parser_parse_node(parser, event, false, false)
|
|
} else {
|
|
parser.state = yaml_PARSE_FLOW_MAPPING_VALUE_STATE
|
|
return yaml_parser_process_empty_scalar(parser, event, token.start_mark)
|
|
}
|
|
} else if token.typ != yaml_FLOW_MAPPING_END_TOKEN {
|
|
parser.states = append(parser.states, yaml_PARSE_FLOW_MAPPING_EMPTY_VALUE_STATE)
|
|
return yaml_parser_parse_node(parser, event, false, false)
|
|
}
|
|
}
|
|
|
|
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
|
|
}
|
|
|
|
// Parse the productions:
|
|
// flow_mapping_entry ::= flow_node | KEY flow_node? (VALUE flow_node?)?
|
|
// * ***** *
|
|
//
|
|
func yaml_parser_parse_flow_mapping_value(parser *yaml_parser_t, event *yaml_event_t, empty bool) bool {
|
|
token := peek_token(parser)
|
|
if token == nil {
|
|
return false
|
|
}
|
|
if empty {
|
|
parser.state = yaml_PARSE_FLOW_MAPPING_KEY_STATE
|
|
return yaml_parser_process_empty_scalar(parser, event, token.start_mark)
|
|
}
|
|
if token.typ == yaml_VALUE_TOKEN {
|
|
skip_token(parser)
|
|
token = peek_token(parser)
|
|
if token == nil {
|
|
return false
|
|
}
|
|
if token.typ != yaml_FLOW_ENTRY_TOKEN && token.typ != yaml_FLOW_MAPPING_END_TOKEN {
|
|
parser.states = append(parser.states, yaml_PARSE_FLOW_MAPPING_KEY_STATE)
|
|
return yaml_parser_parse_node(parser, event, false, false)
|
|
}
|
|
}
|
|
parser.state = yaml_PARSE_FLOW_MAPPING_KEY_STATE
|
|
return yaml_parser_process_empty_scalar(parser, event, token.start_mark)
|
|
}
|
|
|
|
// Generate an empty scalar event.
|
|
func yaml_parser_process_empty_scalar(parser *yaml_parser_t, event *yaml_event_t, mark yaml_mark_t) bool {
|
|
*event = yaml_event_t{
|
|
typ: yaml_SCALAR_EVENT,
|
|
start_mark: mark,
|
|
end_mark: mark,
|
|
value: nil, // Empty
|
|
implicit: true,
|
|
style: yaml_style_t(yaml_PLAIN_SCALAR_STYLE),
|
|
}
|
|
return true
|
|
}
|
|
|
|
var default_tag_directives = []yaml_tag_directive_t{
|
|
{[]byte("!"), []byte("!")},
|
|
{[]byte("!!"), []byte("tag:yaml.org,2002:")},
|
|
}
|
|
|
|
// Parse directives.
|
|
func yaml_parser_process_directives(parser *yaml_parser_t,
|
|
version_directive_ref **yaml_version_directive_t,
|
|
tag_directives_ref *[]yaml_tag_directive_t) bool {
|
|
|
|
var version_directive *yaml_version_directive_t
|
|
var tag_directives []yaml_tag_directive_t
|
|
|
|
token := peek_token(parser)
|
|
if token == nil {
|
|
return false
|
|
}
|
|
|
|
for token.typ == yaml_VERSION_DIRECTIVE_TOKEN || token.typ == yaml_TAG_DIRECTIVE_TOKEN {
|
|
if token.typ == yaml_VERSION_DIRECTIVE_TOKEN {
|
|
if version_directive != nil {
|
|
yaml_parser_set_parser_error(parser,
|
|
"found duplicate %YAML directive", token.start_mark)
|
|
return false
|
|
}
|
|
if token.major != 1 || token.minor != 1 {
|
|
yaml_parser_set_parser_error(parser,
|
|
"found incompatible YAML document", token.start_mark)
|
|
return false
|
|
}
|
|
version_directive = &yaml_version_directive_t{
|
|
major: token.major,
|
|
minor: token.minor,
|
|
}
|
|
} else if token.typ == yaml_TAG_DIRECTIVE_TOKEN {
|
|
value := yaml_tag_directive_t{
|
|
handle: token.value,
|
|
prefix: token.prefix,
|
|
}
|
|
if !yaml_parser_append_tag_directive(parser, value, false, token.start_mark) {
|
|
return false
|
|
}
|
|
tag_directives = append(tag_directives, value)
|
|
}
|
|
|
|
skip_token(parser)
|
|
token = peek_token(parser)
|
|
if token == nil {
|
|
return false
|
|
}
|
|
}
|
|
|
|
for i := range default_tag_directives {
|
|
if !yaml_parser_append_tag_directive(parser, default_tag_directives[i], true, token.start_mark) {
|
|
return false
|
|
}
|
|
}
|
|
|
|
if version_directive_ref != nil {
|
|
*version_directive_ref = version_directive
|
|
}
|
|
if tag_directives_ref != nil {
|
|
*tag_directives_ref = tag_directives
|
|
}
|
|
return true
|
|
}
|
|
|
|
// Append a tag directive to the directives stack.
|
|
func yaml_parser_append_tag_directive(parser *yaml_parser_t, value yaml_tag_directive_t, allow_duplicates bool, mark yaml_mark_t) bool {
|
|
for i := range parser.tag_directives {
|
|
if bytes.Equal(value.handle, parser.tag_directives[i].handle) {
|
|
if allow_duplicates {
|
|
return true
|
|
}
|
|
return yaml_parser_set_parser_error(parser, "found duplicate %TAG directive", mark)
|
|
}
|
|
}
|
|
|
|
// [Go] I suspect the copy is unnecessary. This was likely done
|
|
// because there was no way to track ownership of the data.
|
|
value_copy := yaml_tag_directive_t{
|
|
handle: make([]byte, len(value.handle)),
|
|
prefix: make([]byte, len(value.prefix)),
|
|
}
|
|
copy(value_copy.handle, value.handle)
|
|
copy(value_copy.prefix, value.prefix)
|
|
parser.tag_directives = append(parser.tag_directives, value_copy)
|
|
return true
|
|
}
|