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use common::XmlVersion;
use reader::events::XmlEvent;
use reader::lexer::Token;
use super::{
Result, PullParser, State, DeclarationSubstate, QualifiedNameTarget,
DEFAULT_VERSION, DEFAULT_ENCODING
};
impl PullParser {
// TODO: remove redundancy via macros or extra methods
pub fn inside_declaration(&mut self, t: Token, s: DeclarationSubstate) -> Option<Result> {
macro_rules! unexpected_token(
($this:expr; $t:expr) => (Some($this.error(format!("Unexpected token inside XML declaration: {}", $t))));
($t:expr) => (unexpected_token!(self; $t));
);
#[inline]
fn emit_start_document(this: &mut PullParser) -> Option<Result> {
this.parsed_declaration = true;
let version = this.data.take_version();
let encoding = this.data.take_encoding();
let standalone = this.data.take_standalone();
this.into_state_emit(State::OutsideTag, Ok(XmlEvent::StartDocument {
version: version.unwrap_or(DEFAULT_VERSION),
encoding: encoding.unwrap_or(DEFAULT_ENCODING.into()),
standalone: standalone
}))
}
match s {
DeclarationSubstate::BeforeVersion => match t {
Token::Whitespace(_) => None, // continue
Token::Character('v') => self.into_state_continue(State::InsideDeclaration(DeclarationSubstate::InsideVersion)),
_ => unexpected_token!(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
}
)),
_ => unexpected_token!(this; name)
}
}),
DeclarationSubstate::AfterVersion => match t {
Token::Whitespace(_) => None,
Token::EqualsSign => self.into_state_continue(State::InsideDeclaration(DeclarationSubstate::InsideVersionValue)),
_ => unexpected_token!(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(self_error!(this; "Unexpected XML version value: {}", value))
}
}),
DeclarationSubstate::AfterVersionValue => match t {
Token::Whitespace(_) => None, // skip whitespace
Token::Character('e') => self.into_state_continue(State::InsideDeclaration(DeclarationSubstate::InsideEncoding)),
Token::Character('s') => self.into_state_continue(State::InsideDeclaration(DeclarationSubstate::InsideStandaloneDecl)),
Token::ProcessingInstructionEnd => emit_start_document(self),
_ => unexpected_token!(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 }
)),
_ => unexpected_token!(this; name)
}
}),
DeclarationSubstate::AfterEncoding => match t {
Token::Whitespace(_) => None,
Token::EqualsSign => self.into_state_continue(State::InsideDeclaration(DeclarationSubstate::InsideEncodingValue)),
_ => unexpected_token!(t)
},
DeclarationSubstate::InsideEncodingValue => self.read_attribute_value(t, |this, value| {
this.data.encoding = Some(value);
this.into_state_continue(State::InsideDeclaration(DeclarationSubstate::BeforeStandaloneDecl))
}),
DeclarationSubstate::BeforeStandaloneDecl => match t {
Token::Whitespace(_) => None, // skip whitespace
Token::Character('s') => self.into_state_continue(State::InsideDeclaration(DeclarationSubstate::InsideStandaloneDecl)),
Token::ProcessingInstructionEnd => emit_start_document(self),
_ => unexpected_token!(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
}
)),
_ => unexpected_token!(this; name)
}
}),
DeclarationSubstate::AfterStandaloneDecl => match t {
Token::Whitespace(_) => None,
Token::EqualsSign => self.into_state_continue(State::InsideDeclaration(DeclarationSubstate::InsideStandaloneDeclValue)),
_ => unexpected_token!(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(self_error!(this; "Invalid standalone declaration value: {}", value))
}
}),
DeclarationSubstate::AfterStandaloneDeclValue => match t {
Token::Whitespace(_) => None, // skip whitespace
Token::ProcessingInstructionEnd => emit_start_document(self),
_ => unexpected_token!(t)
}
}
}
}