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use crate::reader::error::SyntaxError;
use crate::common::is_whitespace_char;
use crate::reader::events::XmlEvent;
use crate::reader::lexer::Token;
use super::{
ClosingTagSubstate, DoctypeSubstate, Encountered, OpeningTagSubstate,
ProcessingInstructionSubstate, PullParser, Result, State,
};
impl PullParser {
pub fn outside_tag(&mut self, t: Token) -> Option<Result> {
match t {
Token::Character(c) => {
if is_whitespace_char(c) {
// skip whitespace outside of the root element
if (self.config.c.trim_whitespace && self.buf.is_empty()) ||
(self.depth() == 0 && self.config.c.ignore_root_level_whitespace) {
return None;
}
} else {
self.inside_whitespace = false;
if self.depth() == 0 {
return Some(self.error(SyntaxError::UnexpectedTokenOutsideRoot(t)));
}
}
if !self.is_valid_xml_char_not_restricted(c) {
return Some(self.error(SyntaxError::InvalidCharacterEntity(c as u32)));
}
if self.buf.is_empty() {
self.push_pos();
}
self.buf.push(c);
None
},
Token::CommentEnd | Token::TagEnd | Token::EqualsSign |
Token::DoubleQuote | Token::SingleQuote |
Token::ProcessingInstructionEnd | Token::EmptyTagEnd => {
if self.depth() == 0 {
return Some(self.error(SyntaxError::UnexpectedTokenOutsideRoot(t)));
}
self.inside_whitespace = false;
if let Some(s) = t.as_static_str() {
if self.buf.is_empty() {
self.push_pos();
}
self.buf.push_str(s);
}
None
},
Token::ReferenceStart if self.depth() > 0 => {
self.state_after_reference = State::OutsideTag;
self.into_state_continue(State::InsideReference)
},
Token::ReferenceEnd if self.depth() > 0 => { // Semi-colon in a text outside an entity
self.inside_whitespace = false;
Token::ReferenceEnd.push_to_string(&mut self.buf);
None
},
Token::CommentStart if self.config.c.coalesce_characters && self.config.c.ignore_comments => {
let next_event = self.set_encountered(Encountered::Comment);
// We need to switch the lexer into a comment mode inside comments
self.into_state(State::InsideComment, next_event)
}
Token::CDataStart if self.depth() > 0 && self.config.c.coalesce_characters && self.config.c.cdata_to_characters => {
if self.buf.is_empty() {
self.push_pos();
}
self.into_state_continue(State::InsideCData)
},
_ => {
// Encountered some markup event, flush the buffer as characters
// or a whitespace
let mut next_event = if self.buf_has_data() {
let buf = self.take_buf();
if self.inside_whitespace && self.config.c.trim_whitespace {
None
} else if self.inside_whitespace && !self.config.c.whitespace_to_characters {
Some(Ok(XmlEvent::Whitespace(buf)))
} else if self.config.c.trim_whitespace {
Some(Ok(XmlEvent::Characters(buf.trim_matches(is_whitespace_char).into())))
} else {
Some(Ok(XmlEvent::Characters(buf)))
}
} else { None };
self.inside_whitespace = true; // Reset inside_whitespace flag
// pos is popped whenever an event is emitted, so pushes must happen only if there will be an event to balance it
// and ignored comments don't pop
if t != Token::CommentStart || !self.config.c.ignore_comments {
self.push_pos();
}
match t {
Token::OpeningTagStart if self.depth() > 0 || self.encountered < Encountered::Element || self.config.allow_multiple_root_elements => {
if let Some(e) = self.set_encountered(Encountered::Element) {
next_event = Some(e);
}
self.nst.push_empty();
self.into_state(State::InsideOpeningTag(OpeningTagSubstate::InsideName), next_event)
},
Token::ClosingTagStart if self.depth() > 0 =>
self.into_state(State::InsideClosingTag(ClosingTagSubstate::CTInsideName), next_event),
Token::CommentStart => {
if let Some(e) = self.set_encountered(Encountered::Comment) {
next_event = Some(e);
}
// We need to switch the lexer into a comment mode inside comments
self.into_state(State::InsideComment, next_event)
},
Token::DoctypeStart if self.encountered < Encountered::Doctype => {
if let Some(e) = self.set_encountered(Encountered::Doctype) {
next_event = Some(e);
}
// We don't have a doctype event so skip this position
// FIXME: update when we have a doctype event
self.next_pos();
self.into_state(State::InsideDoctype(DoctypeSubstate::Outside), next_event)
},
Token::ProcessingInstructionStart =>
self.into_state(State::InsideProcessingInstruction(ProcessingInstructionSubstate::PIInsideName), next_event),
Token::CDataStart if self.depth() > 0 => {
self.into_state(State::InsideCData, next_event)
},
_ => Some(self.error(SyntaxError::UnexpectedToken(t)))
}
}
}
}
pub fn document_start(&mut self, t: Token) -> Option<Result> {
debug_assert!(self.encountered < Encountered::Declaration);
match t {
Token::Character(c) => {
let next_event = self.set_encountered(Encountered::AnyChars);
if !is_whitespace_char(c) {
return Some(self.error(SyntaxError::UnexpectedTokenOutsideRoot(t)));
}
self.inside_whitespace = true;
// skip whitespace outside of the root element
if (self.config.c.trim_whitespace && self.buf.is_empty()) ||
(self.depth() == 0 && self.config.c.ignore_root_level_whitespace) {
return self.into_state(State::OutsideTag, next_event);
}
self.push_pos();
self.buf.push(c);
self.into_state(State::OutsideTag, next_event)
},
Token::CommentStart => {
let next_event = self.set_encountered(Encountered::Comment);
self.into_state(State::InsideComment, next_event)
}
Token::OpeningTagStart => {
let next_event = self.set_encountered(Encountered::Element);
self.nst.push_empty();
self.into_state(State::InsideOpeningTag(OpeningTagSubstate::InsideName), next_event)
},
Token::DoctypeStart => {
let next_event = self.set_encountered(Encountered::Doctype);
// We don't have a doctype event so skip this position
// FIXME: update when we have a doctype event
self.next_pos();
self.into_state(State::InsideDoctype(DoctypeSubstate::Outside), next_event)
},
Token::ProcessingInstructionStart => {
self.push_pos();
self.into_state_continue(State::InsideProcessingInstruction(ProcessingInstructionSubstate::PIInsideName))
},
_ => Some(self.error(SyntaxError::UnexpectedToken(t))),
}
}
}
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