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use crate::item::Node;
use crate::parser::combinators::alt::{alt2, alt3, alt9};
use crate::parser::combinators::delimited::delimited;
use crate::parser::combinators::many::many0;
use crate::parser::combinators::map::map;
use crate::parser::combinators::opt::opt;
use crate::parser::combinators::tag::tag;
use crate::parser::combinators::take::take_while;
use crate::parser::combinators::tuple::{tuple2, tuple6};
use crate::parser::combinators::value::value;
use crate::parser::combinators::whitespace::{whitespace0, whitespace1};
use crate::parser::common::{is_ncnamechar, is_ncnamestartchar};
use crate::parser::xml::chardata::chardata_unicode_codepoint;
use crate::parser::xml::dtd::enumerated::enumeratedtype;
use crate::parser::xml::qname::{name, qualname_to_parts};
use crate::parser::xml::reference::textreference;
use crate::parser::{ParseError, ParseInput, StaticState};
use crate::xmldecl::{AttType, DefaultDecl};
use qualname::{NamespacePrefix, NamespaceUri};
use std::collections::HashMap;
//AttlistDecl ::= '<!ATTLIST' S Name AttDef* S? '>'
pub(crate) fn attlistdecl<'a, N: Node, L>()
-> impl Fn(ParseInput<'a, N>, &mut StaticState<L>) -> Result<(ParseInput<'a, N>, ()), ParseError>
where
L: FnMut(&NamespacePrefix) -> Result<NamespaceUri, ParseError>,
{
move |(input, state), ss| match tuple6(
tag("<!ATTLIST"),
whitespace1(),
qualname_to_parts(),
many0(attdef()),
whitespace0(),
tag(">"),
)((input, state), ss)
{
Ok(((input2, mut state2), (_, _, n, ats, _, _))) => {
/*
"3.3 Attribute-List Declarations
When more than one AttlistDecl is provided for a given element type, the contents of all those provided are merged.
When more than one definition is provided for the same attribute of a given element type, the first declaration
is binding and later declarations are ignored."
So we're going to do some checks for existing ATTLIST declarations, but each one has a boolean flag to confirm
if it was created by an external or internal DTD. If its external we can happily overwrite, but not for internal.
*/
/* Entities should always bind to the first value */
let replaceable = state2.currentlyexternal;
let mut atts = HashMap::new();
let mut count_id_attrs = 0;
for (qn, att, dfd) in ats {
match &dfd {
//We need to make sure that the default is valid, even if its not used.
DefaultDecl::FIXED(s) | DefaultDecl::Default(s) => {
match att {
AttType::ID => {
count_id_attrs += 1;
let mut ch = s.chars();
match ch.next() {
None => {}
Some(c) => {
if is_ncnamestartchar(&c) {
for cha in ch {
if !is_ncnamechar(&cha) {
return Err(ParseError::NotWellFormed(
String::from(
"DTD Attvalue default is invalid",
),
));
}
}
} else {
return Err(ParseError::NotWellFormed(String::from(
"DTD Attvalue default is invalid",
)));
}
}
}
}
AttType::IDREF => {
let mut ch = s.chars();
match ch.next() {
None => {}
Some(c) => {
if is_ncnamestartchar(&c) {
for cha in ch {
if !is_ncnamechar(&cha) {
return Err(ParseError::NotWellFormed(
String::from(
"DTD Attvalue default is invalid",
),
));
}
}
} else {
return Err(ParseError::NotWellFormed(String::from(
"DTD Attvalue default is invalid",
)));
}
}
}
}
AttType::IDREFS => {
let names = s.split(' ');
for name in names {
let mut ch = name.chars();
match ch.next() {
None => {}
Some(c) => {
if is_ncnamestartchar(&c) {
for cha in ch {
if !is_ncnamechar(&cha) {
return Err(ParseError::NotWellFormed(
String::from(
"DTD Attvalue default is invalid",
),
));
}
}
} else {
return Err(ParseError::NotWellFormed(
String::from("DTD Attvalue default is invalid"),
));
}
}
}
}
}
AttType::ENTITY => {
let mut ch = s.chars();
match ch.next() {
None => {}
Some(c) => {
if is_ncnamestartchar(&c) {
for cha in ch {
if !is_ncnamechar(&cha) {
return Err(ParseError::NotWellFormed(
String::from(
"DTD Attvalue default is invalid",
),
));
}
}
} else {
return Err(ParseError::NotWellFormed(String::from(
"DTD Attvalue default is invalid",
)));
}
}
}
}
AttType::ENTITIES => {
let entities = s.split(' ');
for entity in entities {
let mut ch = entity.chars();
match ch.next() {
None => {}
Some(c) => {
if is_ncnamestartchar(&c) {
for cha in ch {
if !is_ncnamechar(&cha) {
return Err(ParseError::NotWellFormed(
String::from(
"DTD Attvalue default is invalid",
),
));
}
}
} else {
return Err(ParseError::NotWellFormed(
String::from("DTD Attvalue default is invalid"),
));
}
}
}
}
}
_ => { /*TODO complete the rest of these */ }
}
}
//else do nothing
_ => {}
}
//xml:id datatype checking
if let (Some("xml"), "id") = (&qn.0.as_deref(), qn.1.as_str()) {
if att != AttType::ID {
return Err(ParseError::IDError(
"xml:id declaration in the DTD does not have type ID".to_string(),
));
}
}
atts.insert(qn, (att, dfd, replaceable));
}
if count_id_attrs > 1 {
return Err(ParseError::NotWellFormed(String::from(
"Duplicate ID attribute declarations",
)));
}
if !atts.is_empty() {
match state2.dtd.attlists.get(&n) {
None => {
state2.dtd.attlists.insert(n, atts);
}
Some(al) => {
let mut newal = al.clone();
for (attname, (atttype, defaultdecl, is_editable)) in atts.iter() {
match newal.get(attname) {
None => {
newal.insert(
attname.clone(),
(atttype.clone(), defaultdecl.clone(), *is_editable),
);
}
Some((_, _, existing_is_editable)) => {
if *existing_is_editable {
newal.insert(
attname.clone(),
(atttype.clone(), defaultdecl.clone(), *is_editable),
);
}
}
}
}
state2.dtd.attlists.insert(n, newal);
}
}
}
Ok(((input2, state2), ()))
}
Err(err) => Err(err),
}
}
//AttDef ::= S Name S AttType S DefaultDecl
// Returned Name is (prefix, local-part)
fn attdef<'a, N: Node, L>() -> impl Fn(
ParseInput<'a, N>,
&mut StaticState<L>,
) -> Result<
(
ParseInput<'a, N>,
((Option<String>, String), AttType, DefaultDecl),
),
ParseError,
>
where
L: FnMut(&NamespacePrefix) -> Result<NamespaceUri, ParseError>,
{
map(
tuple6(
whitespace1(),
name(),
whitespace1(),
atttype(),
whitespace1(),
defaultdecl(),
),
|(_, an, _, at, _, dd)| {
let qn = if an.contains(':') {
let mut attnamesplit = an.split(':');
let prefix = Some(attnamesplit.next().unwrap().to_string());
let local = attnamesplit.collect::<String>();
(prefix, local)
} else {
(None, an)
};
(qn, at, dd)
},
)
}
//AttType ::= StringType | TokenizedType | EnumeratedType
fn atttype<'a, N: Node, L>()
-> impl Fn(ParseInput<'a, N>, &mut StaticState<L>) -> Result<(ParseInput<'a, N>, AttType), ParseError>
where
L: FnMut(&NamespacePrefix) -> Result<NamespaceUri, ParseError>,
{
alt9(
//map(petextreference(), |_| {}), //TODO
value(tag("CDATA"), AttType::CDATA), //Stringtype
//tokenizedtype
value(tag("IDREFS"), AttType::IDREFS),
value(tag("IDREF"), AttType::IDREF),
value(tag("ID"), AttType::ID),
value(tag("ENTITY"), AttType::ENTITY),
value(tag("ENTITIES"), AttType::ENTITIES),
value(tag("NMTOKENS"), AttType::NMTOKENS),
value(tag("NMTOKEN"), AttType::NMTOKEN),
enumeratedtype(),
)
}
//DefaultDecl ::= '#REQUIRED' | '#IMPLIED' | (('#FIXED' S)? AttValue)
fn defaultdecl<'a, N: Node, L>() -> impl Fn(
ParseInput<'a, N>,
&mut StaticState<L>,
) -> Result<(ParseInput<'a, N>, DefaultDecl), ParseError>
where
L: FnMut(&NamespacePrefix) -> Result<NamespaceUri, ParseError>,
{
alt3(
value(tag("#REQUIRED"), DefaultDecl::Required),
value(tag("#IMPLIED"), DefaultDecl::Implied),
map(
tuple2(
opt(tuple2(
value(tag("#FIXED"), "#FIXED".to_string()),
whitespace1(),
)),
attvalue(),
),
|(x, y)| match x {
None => DefaultDecl::Default(y),
Some(_) => DefaultDecl::FIXED(y),
},
),
)
}
//AttValue ::= '"' ([^<&"] | Reference)* '"' | "'" ([^<&'] | Reference)* "'"
fn attvalue<'a, N: Node, L>()
-> impl Fn(ParseInput<'a, N>, &mut StaticState<L>) -> Result<(ParseInput<'a, N>, String), ParseError>
where
L: FnMut(&NamespacePrefix) -> Result<NamespaceUri, ParseError>,
{
alt2(
delimited(
tag("\'"),
map(
many0(alt3(
map(chardata_unicode_codepoint(), |c| c.to_string()),
take_while(|c| !"&\'<".contains(c)),
textreference(),
)),
|v| v.join(""),
),
tag("\'"),
),
delimited(
tag("\""),
map(
many0(alt3(
map(chardata_unicode_codepoint(), |c| c.to_string()),
take_while(|c| !"&\"<".contains(c)),
textreference(),
)),
|v| v.join(""),
),
tag("\""),
),
)
}