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This commit is contained in:
John Doty 2024-03-08 11:03:01 -08:00
parent 5deceec006
commit 977e3c17e5
19434 changed files with 10682014 additions and 0 deletions
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180
third-party/vendor/xml-rs/src/reader/parser/inside_declaration.rs vendored Normal file
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use crate::common::{is_whitespace_char, XmlVersion};
use crate::reader::error::SyntaxError;
use crate::reader::events::XmlEvent;
use crate::reader::lexer::Token;
use crate::util::Encoding;
use super::{
DeclarationSubstate, Encountered, PullParser, QualifiedNameTarget, Result, State,
DEFAULT_VERSION,
};
impl PullParser {
#[inline(never)]
fn emit_start_document(&mut self) -> Option<Result> {
debug_assert!(self.encountered == Encountered::None);
self.encountered = Encountered::Declaration;
let version = self.data.version;
let encoding = self.data.take_encoding();
let standalone = self.data.standalone;
if let Some(new_encoding) = encoding.as_deref() {
let new_encoding = match new_encoding.parse() {
Ok(e) => e,
Err(_) if self.config.ignore_invalid_encoding_declarations => Encoding::Latin1,
Err(_) => return Some(self.error(SyntaxError::UnsupportedEncoding(new_encoding.into()))),
};
let current_encoding = self.lexer.encoding();
if current_encoding != new_encoding {
let set = match (current_encoding, new_encoding) {
(Encoding::Unknown | Encoding::Default, new) if new != Encoding::Utf16 => new,
(Encoding::Utf16Be | Encoding::Utf16Le, Encoding::Utf16) => current_encoding,
_ if self.config.ignore_invalid_encoding_declarations => current_encoding,
_ => return Some(self.error(SyntaxError::ConflictingEncoding(new_encoding, current_encoding))),
};
self.lexer.set_encoding(set);
}
}
let current_encoding = self.lexer.encoding();
self.into_state_emit(State::OutsideTag, Ok(XmlEvent::StartDocument {
version: version.unwrap_or(DEFAULT_VERSION),
encoding: encoding.unwrap_or_else(move || current_encoding.to_string()),
standalone
}))
}
// TODO: remove redundancy via macros or extra methods
pub fn inside_declaration(&mut self, t: Token, s: DeclarationSubstate) -> Option<Result> {
match s {
DeclarationSubstate::BeforeVersion => match t {
Token::Character('v') => self.into_state_continue(State::InsideDeclaration(DeclarationSubstate::InsideVersion)),
Token::Character(c) if is_whitespace_char(c) => None, // continue
_ => Some(self.error(SyntaxError::UnexpectedToken(t))),
},
DeclarationSubstate::InsideVersion => self.read_qualified_name(t, QualifiedNameTarget::AttributeNameTarget, |this, token, name| {
match &*name.local_name {
"ersion" if name.namespace.is_none() =>
this.into_state_continue(State::InsideDeclaration(
if token == Token::EqualsSign {
DeclarationSubstate::InsideVersionValue
} else {
DeclarationSubstate::AfterVersion
}
)),
_ => Some(this.error(SyntaxError::UnexpectedNameInsideXml(name.to_string().into()))),
}
}),
DeclarationSubstate::AfterVersion => match t {
Token::EqualsSign => self.into_state_continue(State::InsideDeclaration(DeclarationSubstate::InsideVersionValue)),
Token::Character(c) if is_whitespace_char(c) => None,
_ => Some(self.error(SyntaxError::UnexpectedToken(t))),
},
DeclarationSubstate::InsideVersionValue => self.read_attribute_value(t, |this, value| {
this.data.version = match &*value {
"1.0" => Some(XmlVersion::Version10),
"1.1" => Some(XmlVersion::Version11),
_ => None
};
if this.data.version.is_some() {
this.into_state_continue(State::InsideDeclaration(DeclarationSubstate::AfterVersionValue))
} else {
Some(this.error(SyntaxError::UnexpectedXmlVersion(value.into())))
}
}),
DeclarationSubstate::AfterVersionValue => match t {
Token::Character(c) if is_whitespace_char(c) => self.into_state_continue(State::InsideDeclaration(DeclarationSubstate::BeforeEncoding)),
Token::ProcessingInstructionEnd => self.emit_start_document(),
_ => Some(self.error(SyntaxError::UnexpectedToken(t))),
},
DeclarationSubstate::BeforeEncoding => match t {
Token::Character('e') => self.into_state_continue(State::InsideDeclaration(DeclarationSubstate::InsideEncoding)),
Token::Character('s') => self.into_state_continue(State::InsideDeclaration(DeclarationSubstate::InsideStandaloneDecl)),
Token::ProcessingInstructionEnd => self.emit_start_document(),
Token::Character(c) if is_whitespace_char(c) => None, // skip whitespace
_ => Some(self.error(SyntaxError::UnexpectedToken(t))),
},
DeclarationSubstate::InsideEncoding => self.read_qualified_name(t, QualifiedNameTarget::AttributeNameTarget, |this, token, name| {
match &*name.local_name {
"ncoding" if name.namespace.is_none() =>
this.into_state_continue(State::InsideDeclaration(
if token == Token::EqualsSign { DeclarationSubstate::InsideEncodingValue } else { DeclarationSubstate::AfterEncoding }
)),
_ => Some(this.error(SyntaxError::UnexpectedName(name.to_string().into())))
}
}),
DeclarationSubstate::AfterEncoding => match t {
Token::EqualsSign => self.into_state_continue(State::InsideDeclaration(DeclarationSubstate::InsideEncodingValue)),
Token::Character(c) if is_whitespace_char(c) => None,
_ => Some(self.error(SyntaxError::UnexpectedToken(t))),
},
DeclarationSubstate::InsideEncodingValue => self.read_attribute_value(t, |this, value| {
this.data.encoding = Some(value);
this.into_state_continue(State::InsideDeclaration(DeclarationSubstate::AfterEncodingValue))
}),
DeclarationSubstate::AfterEncodingValue => match t {
Token::Character(c) if is_whitespace_char(c) => self.into_state_continue(State::InsideDeclaration(DeclarationSubstate::BeforeStandaloneDecl)),
Token::ProcessingInstructionEnd => self.emit_start_document(),
_ => Some(self.error(SyntaxError::UnexpectedToken(t))),
},
DeclarationSubstate::BeforeStandaloneDecl => match t {
Token::Character('s') => self.into_state_continue(State::InsideDeclaration(DeclarationSubstate::InsideStandaloneDecl)),
Token::ProcessingInstructionEnd => self.emit_start_document(),
Token::Character(c) if is_whitespace_char(c) => None, // skip whitespace
_ => Some(self.error(SyntaxError::UnexpectedToken(t))),
},
DeclarationSubstate::InsideStandaloneDecl => self.read_qualified_name(t, QualifiedNameTarget::AttributeNameTarget, |this, token, name| {
match &*name.local_name {
"tandalone" if name.namespace.is_none() =>
this.into_state_continue(State::InsideDeclaration(
if token == Token::EqualsSign {
DeclarationSubstate::InsideStandaloneDeclValue
} else {
DeclarationSubstate::AfterStandaloneDecl
}
)),
_ => Some(this.error(SyntaxError::UnexpectedName(name.to_string().into()))),
}
}),
DeclarationSubstate::AfterStandaloneDecl => match t {
Token::EqualsSign => self.into_state_continue(State::InsideDeclaration(DeclarationSubstate::InsideStandaloneDeclValue)),
Token::Character(c) if is_whitespace_char(c) => None,
_ => Some(self.error(SyntaxError::UnexpectedToken(t))),
},
DeclarationSubstate::InsideStandaloneDeclValue => self.read_attribute_value(t, |this, value| {
let standalone = match &*value {
"yes" => Some(true),
"no" => Some(false),
_ => None
};
if standalone.is_some() {
this.data.standalone = standalone;
this.into_state_continue(State::InsideDeclaration(DeclarationSubstate::AfterStandaloneDeclValue))
} else {
Some(this.error(SyntaxError::InvalidStandaloneDeclaration(value.into())))
}
}),
DeclarationSubstate::AfterStandaloneDeclValue => match t {
Token::ProcessingInstructionEnd => self.emit_start_document(),
Token::Character(c) if is_whitespace_char(c) => None, // skip whitespace
_ => Some(self.error(SyntaxError::UnexpectedToken(t))),
},
}
}
}