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use swc_atoms::{js_word, JsWord};
use swc_common::{BytePos, Span};
use swc_css_ast::*;
use super::{input::ParserInput, PResult, Parser};
use crate::{
error::{Error, ErrorKind},
Parse,
};
impl<I> Parser<I>
where
I: ParserInput,
{
pub(super) fn parse_generic_values(&mut self) -> PResult<Vec<ComponentValue>> {
let mut values = vec![];
loop {
self.input.skip_ws();
if is!(self, EOF) {
break;
}
let component_value = self.parse_generic_value()?;
values.push(component_value);
}
Ok(values)
}
pub(super) fn parse_generic_value(&mut self) -> PResult<ComponentValue> {
self.input.skip_ws();
let span = self.input.cur_span();
match cur!(self) {
tok!(",") | tok!("/") | tok!(";") => {
return Ok(ComponentValue::Delimiter(self.parse()?));
}
tok!("string") => {
return Ok(ComponentValue::Str(self.parse()?));
}
tok!("url") => {
return Ok(ComponentValue::Url(self.parse()?));
}
Token::Function { value, .. } => match value.to_ascii_lowercase() {
js_word!("url") | js_word!("src") => {
return Ok(ComponentValue::Url(self.parse()?));
}
js_word!("rgb")
| js_word!("rgba")
| js_word!("hsl")
| js_word!("hsla")
| js_word!("hwb")
| js_word!("lab")
| js_word!("lch")
| js_word!("oklab")
| js_word!("oklch")
| js_word!("color")
| js_word!("device-cmyk")
| js_word!("color-mix")
| js_word!("color-contrast") => {
return Ok(ComponentValue::Color(self.parse()?));
}
_ => {
return Ok(ComponentValue::Function(self.parse()?));
}
},
tok!("percentage") => {
return Ok(ComponentValue::Percentage(self.parse()?));
}
tok!("dimension") => return Ok(ComponentValue::Dimension(self.parse()?)),
Token::Number { type_flag, .. } => {
if *type_flag == NumberType::Integer {
return Ok(ComponentValue::Integer(self.parse()?));
}
return Ok(ComponentValue::Number(self.parse()?));
}
Token::Ident { value, .. } => {
if value.starts_with("--") {
return Ok(ComponentValue::DashedIdent(self.parse()?));
} else if matches_eq_ignore_ascii_case!(value, js_word!("u"))
&& peeked_is_one_of!(self, "+", "number", "dimension")
{
return Ok(ComponentValue::UnicodeRange(self.parse()?));
}
return Ok(ComponentValue::Ident(self.parse()?));
}
tok!("[") | tok!("(") | tok!("{") => {
let mut block = self.parse_as::<SimpleBlock>()?;
let locv = self.create_locv(block.value);
block.value = match self
.parse_according_to_grammar(&locv, |parser| parser.parse_generic_values())
{
Ok(values) => values,
Err(err) => {
if *err.kind() != ErrorKind::Ignore {
self.errors.push(err);
}
locv.children
}
};
return Ok(ComponentValue::SimpleBlock(Box::new(block)));
}
tok!("#") => {
return Ok(ComponentValue::Color(self.parse()?));
}
_ => {}
}
Err(Error::new(span, ErrorKind::Expected("Declaration value")))
}
/// Parse value as <any-value>.
pub(super) fn parse_any_value(&mut self) -> PResult<Vec<TokenAndSpan>> {
let mut tokens = vec![];
let mut balance_stack: Vec<Option<char>> = vec![];
// The <any-value> production matches any sequence of one or more tokens,
// so long as the sequence ...
loop {
if is!(self, EOF) {
break;
}
match cur!(self) {
// ... <bad-string-token>, <bad-url-token>,
tok!("bad-string") | tok!("bad-url") => {
break;
}
// ... unmatched <)-token>, <]-token>, or <}-token>,
tok!(")") | tok!("]") | tok!("}") => {
let value = match cur!(self) {
tok!(")") => ')',
tok!("]") => ']',
tok!("}") => '}',
_ => {
unreachable!();
}
};
let balance_close_type = match balance_stack.pop() {
Some(v) => v,
None => None,
};
if Some(value) != balance_close_type {
break;
}
}
tok!("function") | tok!("(") | tok!("[") | tok!("{") => {
let value = match cur!(self) {
tok!("function") | tok!("(") => ')',
tok!("[") => ']',
tok!("{") => '}',
_ => {
unreachable!();
}
};
balance_stack.push(Some(value));
}
_ => {}
}
let token = self.input.bump();
match token {
Some(token) => tokens.push(token),
None => break,
}
}
Ok(tokens)
}
// TODO use `JsWord`
pub fn parse_function_values(
&mut self,
function_name: &FunctionName,
) -> PResult<Vec<ComponentValue>> {
let function_name = match function_name {
FunctionName::Ident(name) => &name.value,
FunctionName::DashedIdent(_) => {
return Err(Error::new(Default::default(), ErrorKind::Ignore))
}
};
let mut values = vec![];
match *function_name {
js_word!("calc")
| js_word!("-moz-calc")
| js_word!("-webkit-calc")
| js_word!("sin")
| js_word!("cos")
| js_word!("tan")
| js_word!("asin")
| js_word!("acos")
| js_word!("atan")
| js_word!("sqrt")
| js_word!("exp")
| js_word!("abs")
| js_word!("sign") => {
self.input.skip_ws();
let calc_sum = ComponentValue::CalcSum(self.parse()?);
values.push(calc_sum);
self.input.skip_ws();
if !is!(self, EOF) {
let span = self.input.cur_span();
return Err(Error::new(span, ErrorKind::Unexpected("value")));
}
}
js_word!("min") | js_word!("max") | js_word!("hypot") => {
self.input.skip_ws();
let calc_sum = ComponentValue::CalcSum(self.parse()?);
values.push(calc_sum);
loop {
self.input.skip_ws();
if is!(self, ",") {
values.push(ComponentValue::Delimiter(self.parse()?));
self.input.skip_ws();
} else {
break;
}
let calc_sum = ComponentValue::CalcSum(self.parse()?);
values.push(calc_sum);
}
if !is!(self, EOF) {
let span = self.input.cur_span();
return Err(Error::new(span, ErrorKind::Unexpected("value")));
}
}
js_word!("clamp") => {
self.input.skip_ws();
let calc_sum = ComponentValue::CalcSum(self.parse()?);
values.push(calc_sum);
self.input.skip_ws();
if is!(self, ",") {
values.push(ComponentValue::Delimiter(self.parse()?));
self.input.skip_ws();
} else {
let span = self.input.cur_span();
return Err(Error::new(span, ErrorKind::Expected("',' delim token")));
}
let calc_sum = ComponentValue::CalcSum(self.parse()?);
values.push(calc_sum);
self.input.skip_ws();
if is!(self, ",") {
values.push(ComponentValue::Delimiter(self.parse()?));
self.input.skip_ws();
} else {
let span = self.input.cur_span();
return Err(Error::new(span, ErrorKind::Expected("',' delim token")));
}
let calc_sum = ComponentValue::CalcSum(self.parse()?);
values.push(calc_sum);
self.input.skip_ws();
}
js_word!("round") => {
self.input.skip_ws();
if is!(self, "ident") {
// TODO improve me
let rounding_strategy = ComponentValue::Ident(self.parse()?);
values.push(rounding_strategy);
self.input.skip_ws();
if is!(self, ",") {
values.push(ComponentValue::Delimiter(self.parse()?));
self.input.skip_ws();
} else {
let span = self.input.cur_span();
return Err(Error::new(span, ErrorKind::Expected("',' delim token")));
}
}
let calc_sum = ComponentValue::CalcSum(self.parse()?);
values.push(calc_sum);
self.input.skip_ws();
if is!(self, ",") {
values.push(ComponentValue::Delimiter(self.parse()?));
self.input.skip_ws();
} else {
let span = self.input.cur_span();
return Err(Error::new(span, ErrorKind::Expected("',' delim token")));
}
let calc_sum = ComponentValue::CalcSum(self.parse()?);
values.push(calc_sum);
self.input.skip_ws();
}
js_word!("mod") | js_word!("rem") | js_word!("atan2") | js_word!("pow") => {
self.input.skip_ws();
let calc_sum = ComponentValue::CalcSum(self.parse()?);
values.push(calc_sum);
self.input.skip_ws();
if is!(self, ",") {
values.push(ComponentValue::Delimiter(self.parse()?));
self.input.skip_ws();
} else {
let span = self.input.cur_span();
return Err(Error::new(span, ErrorKind::Expected("',' delim token")));
}
let calc_sum = ComponentValue::CalcSum(self.parse()?);
values.push(calc_sum);
self.input.skip_ws();
}
js_word!("log") => {
self.input.skip_ws();
let calc_sum = ComponentValue::CalcSum(self.parse()?);
values.push(calc_sum);
self.input.skip_ws();
if is!(self, ",") {
values.push(ComponentValue::Delimiter(self.parse()?));
self.input.skip_ws();
let calc_sum = ComponentValue::CalcSum(self.parse()?);
values.push(calc_sum);
self.input.skip_ws();
}
}
js_word!("rgb") | js_word!("rgba") | js_word!("hsl") | js_word!("hsla") => {
self.input.skip_ws();
let mut has_variable = false;
let mut is_legacy_syntax = true;
match cur!(self) {
Token::Ident { value, .. }
if matches_eq_ignore_ascii_case!(value, js_word!("from")) =>
{
is_legacy_syntax = false;
values.push(ComponentValue::Ident(self.parse()?));
self.input.skip_ws();
let color = self.try_parse_variable_function(
|parser, _| Ok(Some(ComponentValue::Color(parser.parse()?))),
&mut has_variable,
)?;
if let Some(color) = color {
values.push(color);
}
self.input.skip_ws();
}
_ => {}
}
match *function_name {
js_word!("rgb") | js_word!("rgba") => {
let percentage_or_number_or_none = self.try_parse_variable_function(
|parser, has_variable_before| match cur!(parser) {
tok!("percentage") => {
Ok(Some(ComponentValue::Percentage(parser.parse()?)))
}
tok!("number") => Ok(Some(ComponentValue::Number(parser.parse()?))),
Token::Function { value, .. } if is_math_function(value) => {
Ok(Some(ComponentValue::Function(parser.parse()?)))
}
tok!("ident") => {
is_legacy_syntax = false;
let ident: Box<Ident> = parser.parse()?;
if ident.value.eq_str_ignore_ascii_case("none") {
Ok(Some(ComponentValue::Ident(ident)))
} else {
Err(Error::new(
ident.span,
ErrorKind::Expected("'none' value of an ident token"),
))
}
}
_ => {
if !has_variable_before {
Err(Error::new(
parser.input.cur_span(),
ErrorKind::Expected(
"percentage, number, function (math functions) or \
ident (with 'none' value) token",
),
))
} else {
Ok(None)
}
}
},
&mut has_variable,
)?;
if let Some(percentage_or_number_or_none) = percentage_or_number_or_none {
values.push(percentage_or_number_or_none);
}
self.input.skip_ws();
}
js_word!("hsl") | js_word!("hsla") => {
let hue_or_none = self.try_parse_variable_function(
|parser, has_variable_before| match cur!(parser) {
tok!("number") | tok!("dimension") => {
Ok(Some(ComponentValue::Hue(parser.parse()?)))
}
tok!("ident") => {
let ident: Box<Ident> = parser.parse()?;
if ident.value.eq_str_ignore_ascii_case("none") {
Ok(Some(ComponentValue::Ident(ident)))
} else {
Err(Error::new(
ident.span,
ErrorKind::Expected("'none' value of an ident token"),
))
}
}
Token::Function { value, .. } if is_math_function(value) => {
Ok(Some(ComponentValue::Function(parser.parse()?)))
}
_ => {
if !has_variable_before {
Err(Error::new(
parser.input.cur_span(),
ErrorKind::Expected(
"number, dimension, function (math functions) or \
ident (with 'none' value) token",
),
))
} else {
Ok(None)
}
}
},
&mut has_variable,
)?;
if let Some(hue_or_none) = hue_or_none {
values.push(hue_or_none);
}
self.input.skip_ws();
}
_ => {
unreachable!()
}
}
if is!(self, ",") {
if !is_legacy_syntax && !has_variable {
let span = self.input.cur_span();
return Err(Error::new(span, ErrorKind::Expected("comma token")));
}
is_legacy_syntax = true;
values.push(ComponentValue::Delimiter(self.parse()?));
self.input.skip_ws();
} else {
is_legacy_syntax = false;
}
match *function_name {
js_word!("rgb") | js_word!("rgba") => {
let percentage_or_number = self.try_parse_variable_function(
|parser, has_variable_before| match cur!(parser) {
tok!("percentage") => {
Ok(Some(ComponentValue::Percentage(parser.parse()?)))
}
tok!("number") => Ok(Some(ComponentValue::Number(parser.parse()?))),
Token::Function { value, .. } if is_math_function(value) => {
Ok(Some(ComponentValue::Function(parser.parse()?)))
}
tok!("ident") if !is_legacy_syntax => {
let ident: Box<Ident> = parser.parse()?;
if ident.value.eq_str_ignore_ascii_case("none") {
Ok(Some(ComponentValue::Ident(ident)))
} else {
Err(Error::new(
ident.span,
ErrorKind::Expected("'none' value of an ident token"),
))
}
}
_ => {
if !has_variable_before {
Err(Error::new(
parser.input.cur_span(),
ErrorKind::Expected(
"percentage, number, function (math functions) or \
ident (with 'none' value) token",
),
))
} else {
Ok(None)
}
}
},
&mut has_variable,
)?;
if let Some(percentage_or_number) = percentage_or_number {
values.push(percentage_or_number);
}
self.input.skip_ws();
}
js_word!("hsl") | js_word!("hsla") => {
let percentage_or_none = self.try_parse_variable_function(
|parser, has_variable_before| match cur!(parser) {
tok!("percentage") => {
Ok(Some(ComponentValue::Percentage(parser.parse()?)))
}
Token::Function { value, .. } if is_math_function(value) => {
Ok(Some(ComponentValue::Function(parser.parse()?)))
}
tok!("ident") => {
let ident: Box<Ident> = parser.parse()?;
if ident.value.eq_str_ignore_ascii_case("none") {
Ok(Some(ComponentValue::Ident(ident)))
} else {
Err(Error::new(
ident.span,
ErrorKind::Expected("'none' value of an ident token"),
))
}
}
_ => {
if !has_variable_before {
Err(Error::new(
parser.input.cur_span(),
ErrorKind::Expected(
"percentage, function (math functions) or ident \
(with 'none' value) token",
),
))
} else {
Ok(None)
}
}
},
&mut has_variable,
)?;
if let Some(percentage_or_none) = percentage_or_none {
values.push(percentage_or_none);
}
self.input.skip_ws();
}
_ => {
unreachable!();
}
}
if is_legacy_syntax {
if has_variable && is!(self, EOF) {
return Ok(values);
}
match cur!(self) {
tok!(",") => {
values.push(ComponentValue::Delimiter(self.parse()?));
self.input.skip_ws();
}
_ => {
if !has_variable {
let span = self.input.cur_span();
return Err(Error::new(span, ErrorKind::Expected("comma token")));
}
}
}
}
match *function_name {
js_word!("rgb") | js_word!("rgba") => {
let percentage_or_number = self.try_parse_variable_function(
|parser, has_variable_before| match cur!(parser) {
tok!("percentage") => {
Ok(Some(ComponentValue::Percentage(parser.parse()?)))
}
tok!("number") => Ok(Some(ComponentValue::Number(parser.parse()?))),
Token::Function { value, .. } if is_math_function(value) => {
Ok(Some(ComponentValue::Function(parser.parse()?)))
}
tok!("ident") if !is_legacy_syntax => {
let ident: Box<Ident> = parser.parse()?;
if ident.value.eq_str_ignore_ascii_case("none") {
Ok(Some(ComponentValue::Ident(ident)))
} else {
Err(Error::new(
ident.span,
ErrorKind::Expected("'none' value of an ident token"),
))
}
}
_ => {
if !has_variable_before {
Err(Error::new(
parser.input.cur_span(),
ErrorKind::Expected(
"percentage, number, function (math functions) or \
ident (with 'none' value) token",
),
))
} else {
Ok(None)
}
}
},
&mut has_variable,
)?;
if let Some(percentage_or_number) = percentage_or_number {
values.push(percentage_or_number);
}
self.input.skip_ws();
}
js_word!("hsl") | js_word!("hsla") => {
let percentage_or_none = self.try_parse_variable_function(
|parser, has_variable_before| match cur!(parser) {
tok!("percentage") => {
Ok(Some(ComponentValue::Percentage(parser.parse()?)))
}
Token::Function { value, .. } if is_math_function(value) => {
Ok(Some(ComponentValue::Function(parser.parse()?)))
}
tok!("ident") => {
let ident: Box<Ident> = parser.parse()?;
if ident.value.eq_str_ignore_ascii_case("none") {
Ok(Some(ComponentValue::Ident(ident)))
} else {
Err(Error::new(
ident.span,
ErrorKind::Expected("'none' value of an ident token"),
))
}
}
_ => {
if !has_variable_before {
Err(Error::new(
parser.input.cur_span(),
ErrorKind::Expected(
"percentage, function (math functions) or ident \
(with 'none' value) token",
),
))
} else {
Ok(None)
}
}
},
&mut has_variable,
)?;
if let Some(percentage_or_none) = percentage_or_none {
values.push(percentage_or_none);
}
self.input.skip_ws();
}
_ => {
unreachable!();
}
}
if is!(self, ",") && is_legacy_syntax {
values.push(ComponentValue::Delimiter(self.parse()?));
self.input.skip_ws();
let alpha_value = self.try_parse_variable_function(
|parser, has_variable_before| match cur!(parser) {
tok!("number") | tok!("percentage") => {
Ok(Some(ComponentValue::AlphaValue(parser.parse()?)))
}
Token::Function { value, .. } if is_math_function(value) => {
Ok(Some(ComponentValue::Function(parser.parse()?)))
}
_ => {
if !has_variable_before {
Err(Error::new(
parser.input.cur_span(),
ErrorKind::Expected(
"percentage, function (math functions) or number token",
),
))
} else {
Ok(None)
}
}
},
&mut has_variable,
)?;
if let Some(alpha_value) = alpha_value {
values.push(alpha_value);
}
self.input.skip_ws();
} else if is!(self, "/") && !is_legacy_syntax {
values.push(ComponentValue::Delimiter(self.parse()?));
self.input.skip_ws();
let alpha_value = self.try_parse_variable_function(
|parser, has_variable_before| match cur!(parser) {
tok!("number") | tok!("percentage") => {
Ok(Some(ComponentValue::AlphaValue(parser.parse()?)))
}
Token::Function { value, .. } if is_math_function(value) => {
Ok(Some(ComponentValue::Function(parser.parse()?)))
}
tok!("ident") => {
let ident: Box<Ident> = parser.parse()?;
if ident.value.eq_str_ignore_ascii_case("none") {
Ok(Some(ComponentValue::Ident(ident)))
} else {
Err(Error::new(
ident.span,
ErrorKind::Expected("'none' value of an ident token"),
))
}
}
_ => {
if !has_variable_before {
Err(Error::new(
parser.input.cur_span(),
ErrorKind::Expected(
"percentage, number, function (math functions) or \
ident (with 'none' value) token",
),
))
} else {
Ok(None)
}
}
},
&mut has_variable,
)?;
if let Some(alpha_value) = alpha_value {
values.push(alpha_value);
}
self.input.skip_ws();
}
}
js_word!("hwb")
| js_word!("lab")
| js_word!("lch")
| js_word!("oklab")
| js_word!("oklch")
| js_word!("device-cmyk") => {
self.input.skip_ws();
let mut has_variable = false;
match cur!(self) {
Token::Ident { value, .. }
if matches_eq_ignore_ascii_case!(value, js_word!("from"))
&& *function_name != js_word!("device-cmyk") =>
{
values.push(ComponentValue::Ident(self.parse()?));
self.input.skip_ws();
let color = self.try_parse_variable_function(
|parser, _| Ok(Some(ComponentValue::Color(parser.parse()?))),
&mut has_variable,
)?;
if let Some(color) = color {
values.push(color);
}
self.input.skip_ws();
}
_ => {}
}
match *function_name {
js_word!("hwb") => {
let hue_or_none = self.try_parse_variable_function(
|parser, has_variable_before| match cur!(parser) {
tok!("number") | tok!("dimension") => {
Ok(Some(ComponentValue::Hue(parser.parse()?)))
}
Token::Function { value, .. } if is_math_function(value) => {
Ok(Some(ComponentValue::Function(parser.parse()?)))
}
tok!("ident") => {
let ident: Box<Ident> = parser.parse()?;
if ident.value.eq_str_ignore_ascii_case("none") {
Ok(Some(ComponentValue::Ident(ident)))
} else {
Err(Error::new(
ident.span,
ErrorKind::Expected("'none' value of an ident token"),
))
}
}
_ => {
if !has_variable_before {
return Err(Error::new(
parser.input.cur_span(),
ErrorKind::Expected(
"number, dimension, function (math functions) or \
ident (with 'none' value) token",
),
));
} else {
Ok(None)
}
}
},
&mut has_variable,
)?;
if let Some(hue_or_none) = hue_or_none {
values.push(hue_or_none);
}
self.input.skip_ws();
}
js_word!("lab") | js_word!("lch") | js_word!("oklab") | js_word!("oklch") => {
let percentage_or_none = self.try_parse_variable_function(
|parser, has_variable_before| match cur!(parser) {
tok!("percentage") => {
Ok(Some(ComponentValue::Percentage(parser.parse()?)))
}
tok!("number") => Ok(Some(ComponentValue::Number(parser.parse()?))),
Token::Function { value, .. } if is_math_function(value) => {
Ok(Some(ComponentValue::Function(parser.parse()?)))
}
tok!("ident") => {
let ident: Box<Ident> = parser.parse()?;
if ident.value.eq_str_ignore_ascii_case("none") {
Ok(Some(ComponentValue::Ident(ident)))
} else {
Err(Error::new(
ident.span,
ErrorKind::Expected("'none' value of an ident token"),
))
}
}
_ => {
if !has_variable_before {
Err(Error::new(
parser.input.cur_span(),
ErrorKind::Expected(
"percentage, function (math functions) or ident \
(with 'none' value) token",
),
))
} else {
Ok(None)
}
}
},
&mut has_variable,
)?;
if let Some(percentage_or_none) = percentage_or_none {
values.push(percentage_or_none);
}
self.input.skip_ws();
}
js_word!("device-cmyk") => {
let cmyk_component = self.try_parse_variable_function(
|parser, _| Ok(Some(ComponentValue::CmykComponent(parser.parse()?))),
&mut has_variable,
)?;
if let Some(cmyk_component) = cmyk_component {
values.push(cmyk_component);
}
self.input.skip_ws();
}
_ => {
unreachable!();
}
}
if !is_one_of!(self, EOF, "/") {
match *function_name {
js_word!("hwb") => {
let percentage_or_none = self.try_parse_variable_function(
|parser, has_variable_before| match cur!(parser) {
tok!("percentage") => {
Ok(Some(ComponentValue::Percentage(parser.parse()?)))
}
Token::Function { value, .. } if is_math_function(value) => {
Ok(Some(ComponentValue::Function(parser.parse()?)))
}
tok!("ident") => {
let ident: Box<Ident> = parser.parse()?;
if ident.value.eq_str_ignore_ascii_case("none") {
Ok(Some(ComponentValue::Ident(ident)))
} else {
Err(Error::new(
ident.span,
ErrorKind::Expected(
"'none' value of an ident token",
),
))
}
}
_ => {
if !has_variable_before {
Err(Error::new(
parser.input.cur_span(),
ErrorKind::Expected(
"percentage, functions (math functions) or \
ident (with 'none' value) token",
),
))
} else {
Ok(None)
}
}
},
&mut has_variable,
)?;
if let Some(percentage_or_none) = percentage_or_none {
values.push(percentage_or_none);
}
self.input.skip_ws();
}
js_word!("lab")
| js_word!("lch")
| js_word!("oklab")
| js_word!("oklch") => {
let number_or_none = self.try_parse_variable_function(
|parser, has_variable_before| match cur!(parser) {
tok!("percentage") => {
Ok(Some(ComponentValue::Percentage(parser.parse()?)))
}
tok!("number") => {
Ok(Some(ComponentValue::Number(parser.parse()?)))
}
Token::Function { value, .. } if is_math_function(value) => {
Ok(Some(ComponentValue::Function(parser.parse()?)))
}
tok!("ident") => {
let ident: Box<Ident> = parser.parse()?;
if ident.value.eq_str_ignore_ascii_case("none") {
Ok(Some(ComponentValue::Ident(ident)))
} else {
Err(Error::new(
ident.span,
ErrorKind::Expected(
"'none' value of an ident token",
),
))
}
}
_ => {
if !has_variable_before {
Err(Error::new(
parser.input.cur_span(),
ErrorKind::Expected(
"number, functions (math functions) or ident \
(with 'none' value) token",
),
))
} else {
Ok(None)
}
}
},
&mut has_variable,
)?;
if let Some(number_or_none) = number_or_none {
values.push(number_or_none);
}
self.input.skip_ws();
}
js_word!("device-cmyk") => {
let cmyk_component = self.try_parse_variable_function(
|parser, _| {
Ok(Some(ComponentValue::CmykComponent(parser.parse()?)))
},
&mut has_variable,
)?;
if let Some(cmyk_component) = cmyk_component {
values.push(cmyk_component);
}
self.input.skip_ws();
}
_ => {
unreachable!();
}
}
}
if !is_one_of!(self, EOF, "/") {
match *function_name {
js_word!("hwb") => {
let percentage_or_none = self.try_parse_variable_function(
|parser, has_variable_before| match cur!(parser) {
tok!("percentage") => {
Ok(Some(ComponentValue::Percentage(parser.parse()?)))
}
Token::Function { value, .. } if is_math_function(value) => {
Ok(Some(ComponentValue::Function(parser.parse()?)))
}
tok!("ident") => {
let ident: Box<Ident> = parser.parse()?;
if ident.value.eq_str_ignore_ascii_case("none") {
Ok(Some(ComponentValue::Ident(ident)))
} else {
Err(Error::new(
ident.span,
ErrorKind::Expected(
"'none' value of an ident token",
),
))
}
}
_ => {
if !has_variable_before {
Err(Error::new(
parser.input.cur_span(),
ErrorKind::Expected(
"percentage, functions (math functions) or \
ident (with 'none' value) token",
),
))
} else {
Ok(None)
}
}
},
&mut has_variable,
)?;
if let Some(percentage_or_none) = percentage_or_none {
values.push(percentage_or_none);
}
self.input.skip_ws();
}
js_word!("lab") | js_word!("oklab") => {
let number_or_none = self.try_parse_variable_function(
|parser, has_variable_before| match cur!(parser) {
tok!("percentage") => {
Ok(Some(ComponentValue::Percentage(parser.parse()?)))
}
tok!("number") => {
Ok(Some(ComponentValue::Number(parser.parse()?)))
}
Token::Function { value, .. } if is_math_function(value) => {
Ok(Some(ComponentValue::Function(parser.parse()?)))
}
tok!("ident") => {
let ident: Box<Ident> = parser.parse()?;
if ident.value.eq_str_ignore_ascii_case("none") {
Ok(Some(ComponentValue::Ident(ident)))
} else {
Err(Error::new(
ident.span,
ErrorKind::Expected(
"'none' value of an ident token",
),
))
}
}
_ => {
if !has_variable_before {
Err(Error::new(
parser.input.cur_span(),
ErrorKind::Expected(
"number, function (math functions) or ident \
(with 'none' value) token",
),
))
} else {
Ok(None)
}
}
},
&mut has_variable,
)?;
if let Some(number_or_none) = number_or_none {
values.push(number_or_none);
}
self.input.skip_ws();
}
js_word!("lch") | js_word!("oklch") => {
let hue_or_none = self.try_parse_variable_function(
|parser, has_variable_before| match cur!(parser) {
tok!("number") | tok!("dimension") => {
Ok(Some(ComponentValue::Hue(parser.parse()?)))
}
Token::Function { value, .. } if is_math_function(value) => {
Ok(Some(ComponentValue::Function(parser.parse()?)))
}
tok!("ident") => {
let ident: Box<Ident> = parser.parse()?;
if ident.value.eq_str_ignore_ascii_case("none") {
Ok(Some(ComponentValue::Ident(ident)))
} else {
Err(Error::new(
ident.span,
ErrorKind::Expected(
"'none' value of an ident token",
),
))
}
}
_ => {
if !has_variable_before {
return Err(Error::new(
parser.input.cur_span(),
ErrorKind::Expected(
"number, dimension, functions (math \
functions) or ident (with 'none' value) token",
),
));
} else {
Ok(None)
}
}
},
&mut has_variable,
)?;
if let Some(hue_or_none) = hue_or_none {
values.push(hue_or_none);
}
self.input.skip_ws();
}
js_word!("device-cmyk") => {
let cmyk_component = self.try_parse_variable_function(
|parser, _| {
Ok(Some(ComponentValue::CmykComponent(parser.parse()?)))
},
&mut has_variable,
)?;
if let Some(cmyk_component) = cmyk_component {
values.push(cmyk_component);
}
self.input.skip_ws();
}
_ => {
unreachable!();
}
}
}
if !is_one_of!(self, EOF, "/") && function_name == "device-cmyk" {
let cmyk_component = self.try_parse_variable_function(
|parser, _| Ok(Some(ComponentValue::CmykComponent(parser.parse()?))),
&mut has_variable,
)?;
if let Some(cmyk_component) = cmyk_component {
values.push(cmyk_component);
}
self.input.skip_ws();
}
if is!(self, "/") {
values.push(ComponentValue::Delimiter(self.parse()?));
self.input.skip_ws();
let alpha_value = self.try_parse_variable_function(
|parser, has_variable_before| match cur!(parser) {
tok!("number") | tok!("percentage") => {
Ok(Some(ComponentValue::AlphaValue(parser.parse()?)))
}
Token::Function { value, .. } if is_math_function(value) => {
Ok(Some(ComponentValue::Function(parser.parse()?)))
}
tok!("ident") if !matches!(*function_name, js_word!("device-cmyk")) => {
let ident: Box<Ident> = parser.parse()?;
if ident.value.eq_str_ignore_ascii_case("none") {
Ok(Some(ComponentValue::Ident(ident)))
} else {
Err(Error::new(
ident.span,
ErrorKind::Expected("'none' value of an ident token"),
))
}
}
_ => {
if !has_variable_before {
Err(Error::new(
parser.input.cur_span(),
ErrorKind::Expected(
"percentage, number, functions (math functions) or \
ident (with 'none' value) token",
),
))
} else {
Ok(None)
}
}
},
&mut has_variable,
)?;
if let Some(alpha_value) = alpha_value {
values.push(alpha_value);
}
self.input.skip_ws();
}
}
js_word!("color") => {
self.input.skip_ws();
let mut has_variable = false;
match cur!(self) {
Token::Ident { value, .. }
if matches_eq_ignore_ascii_case!(value, js_word!("from")) =>
{
values.push(ComponentValue::Ident(self.parse()?));
self.input.skip_ws();
let color = self.try_parse_variable_function(
|parser, _| Ok(Some(ComponentValue::Color(parser.parse()?))),
&mut has_variable,
)?;
if let Some(color) = color {
values.push(color);
}
self.input.skip_ws();
}
_ => {}
}
let mut is_custom_params = false;
let mut is_xyz = false;
let ident = self.try_parse_variable_function(
|parser, _| match cur!(parser) {
Token::Ident { value, .. } => {
if value.starts_with("--") && value.len() > 2 {
is_custom_params = true;
Ok(Some(ComponentValue::DashedIdent(parser.parse()?)))
} else {
if matches_eq_ignore_ascii_case!(
value,
js_word!("xyz"),
js_word!("xyz-d50"),
js_word!("xyz-d65")
) {
is_xyz = true
} else {
// There are predefined-rgb-params , but
// For unknown, we don't return an error
// to
// continue to support invalid color,
// because they fallback in browser
}
Ok(Some(ComponentValue::Ident(parser.parse()?)))
}
}
_ => Err(Error::new(
parser.input.cur_span(),
ErrorKind::Expected("ident token"),
)),
},
&mut has_variable,
)?;
if let Some(ident) = ident {
values.push(ident);
}
self.input.skip_ws();
let number_or_percentage_or_none = self.try_parse_variable_function(
|parser, has_variable_before| match cur!(parser) {
tok!("number") => Ok(Some(ComponentValue::Number(parser.parse()?))),
tok!("percentage") if !is_xyz => {
Ok(Some(ComponentValue::Percentage(parser.parse()?)))
}
Token::Function { value, .. } if is_math_function(value) => {
Ok(Some(ComponentValue::Function(parser.parse()?)))
}
tok!("ident") => {
let ident: Box<Ident> = parser.parse()?;
if ident.value.eq_str_ignore_ascii_case("none") {
Ok(Some(ComponentValue::Ident(ident)))
} else {
Err(Error::new(
ident.span,
ErrorKind::Expected("'none' value of an ident token"),
))
}
}
_ => {
if !has_variable_before {
Err(Error::new(
parser.input.cur_span(),
ErrorKind::Expected(
"percentage, function (math functions) or ident (with \
'none' value) token",
),
))
} else {
Ok(None)
}
}
},
&mut has_variable,
)?;
if let Some(number_or_percentage_or_none) = number_or_percentage_or_none {
values.push(number_or_percentage_or_none);
}
self.input.skip_ws();
if is_custom_params {
loop {
if is!(self, EOF) {
break;
}
let number_or_percentage_or_none = match cur!(self) {
tok!("number") => ComponentValue::Number(self.parse()?),
tok!("percentage") if !is_xyz => {
ComponentValue::Percentage(self.parse()?)
}
Token::Function { value, .. }
if is_math_function(value)
|| matches_eq_ignore_ascii_case!(
value,
js_word!("var"),
js_word!("env"),
js_word!("constant")
) =>
{
ComponentValue::Function(self.parse()?)
}
tok!("ident") => {
let ident: Box<Ident> = self.parse()?;
if ident.value.eq_str_ignore_ascii_case("none") {
ComponentValue::Ident(ident)
} else {
return Err(Error::new(
ident.span,
ErrorKind::Expected("'none' value of an ident token"),
));
}
}
_ => {
break;
}
};
values.push(number_or_percentage_or_none);
self.input.skip_ws();
}
} else {
let number_or_percentage_or_none = self.try_parse_variable_function(
|parser, has_variable_before| match cur!(parser) {
tok!("number") => Ok(Some(ComponentValue::Number(parser.parse()?))),
tok!("percentage") if !is_xyz => {
Ok(Some(ComponentValue::Percentage(parser.parse()?)))
}
Token::Function { value, .. } if is_math_function(value) => {
Ok(Some(ComponentValue::Function(parser.parse()?)))
}
tok!("ident") => {
let ident: Box<Ident> = parser.parse()?;
if ident.value.eq_str_ignore_ascii_case("none") {
Ok(Some(ComponentValue::Ident(ident)))
} else {
Err(Error::new(
ident.span,
ErrorKind::Expected("'none' value of an ident token"),
))
}
}
_ => {
if !has_variable_before {
Err(Error::new(
parser.input.cur_span(),
ErrorKind::Expected(
"percentage, function (math functions) or ident (with \
'none' value) token",
),
))
} else {
Ok(None)
}
}
},
&mut has_variable,
)?;
if let Some(number_or_percentage_or_none) = number_or_percentage_or_none {
values.push(number_or_percentage_or_none);
}
self.input.skip_ws();
let number_or_percentage_or_none = self.try_parse_variable_function(
|parser, has_variable_before| match cur!(parser) {
tok!("number") => Ok(Some(ComponentValue::Number(parser.parse()?))),
tok!("percentage") if !is_xyz => {
Ok(Some(ComponentValue::Percentage(parser.parse()?)))
}
tok!("ident") => {
let ident: Box<Ident> = parser.parse()?;
if ident.value.eq_str_ignore_ascii_case("none") {
Ok(Some(ComponentValue::Ident(ident)))
} else {
Err(Error::new(
ident.span,
ErrorKind::Expected("'none' value of an ident token"),
))
}
}
Token::Function { value, .. } if is_math_function(value) => {
Ok(Some(ComponentValue::Function(parser.parse()?)))
}
_ => {
if !has_variable_before {
Err(Error::new(
parser.input.cur_span(),
ErrorKind::Expected(
"percentage, function (math functions) or ident (with \
'none' value) token",
),
))
} else {
Ok(None)
}
}
},
&mut has_variable,
)?;
if let Some(number_or_percentage_or_none) = number_or_percentage_or_none {
values.push(number_or_percentage_or_none);
}
self.input.skip_ws();
}
if is!(self, "/") {
values.push(ComponentValue::Delimiter(self.parse()?));
self.input.skip_ws();
let alpha_value = self.try_parse_variable_function(
|parser, has_variable_before| match cur!(parser) {
tok!("number") | tok!("percentage") => {
Ok(Some(ComponentValue::AlphaValue(parser.parse()?)))
}
Token::Function { value, .. } if is_math_function(value) => {
Ok(Some(ComponentValue::Function(parser.parse()?)))
}
tok!("ident") if !matches!(*function_name, js_word!("device-cmyk")) => {
let ident: Box<Ident> = parser.parse()?;
if ident.value.eq_str_ignore_ascii_case("none") {
Ok(Some(ComponentValue::Ident(ident)))
} else {
Err(Error::new(
ident.span,
ErrorKind::Expected("'none' value of an ident token"),
))
}
}
_ => {
if !has_variable_before {
Err(Error::new(
parser.input.cur_span(),
ErrorKind::Expected(
"percentage, number, function (math functions) or \
ident (with 'none' value) token",
),
))
} else {
Ok(None)
}
}
},
&mut has_variable,
)?;
if let Some(alpha_value) = alpha_value {
values.push(alpha_value);
}
self.input.skip_ws();
}
self.input.skip_ws();
}
js_word!("element") | js_word!("-moz-element") => {
self.input.skip_ws();
let id_selector = self.try_parse_variable_function(
|parser, _| Ok(Some(ComponentValue::IdSelector(parser.parse()?))),
&mut false,
)?;
if let Some(id_selector) = id_selector {
values.push(id_selector);
self.input.skip_ws();
}
}
js_word!("selector") if self.ctx.in_supports_at_rule => {
self.input.skip_ws();
let selector = ComponentValue::ComplexSelector(self.parse()?);
values.push(selector);
self.input.skip_ws();
}
js_word!("layer") if self.ctx.in_import_at_rule => {
self.input.skip_ws();
if is!(self, EOF) {
let span = self.input.cur_span();
return Err(Error::new(
span,
ErrorKind::Expected(
"layer function inside @import expected to have exactly one ident \
argument",
),
));
}
let layer_name = self.parse_as::<Box<LayerName>>()?;
values.push(ComponentValue::LayerName(layer_name));
self.input.skip_ws();
if !is!(self, EOF) {
let span = self.input.cur_span();
return Err(Error::new(
span,
ErrorKind::Expected(
"layer function inside @import expected to have exactly one ident \
argument",
),
));
}
}
js_word!("supports") if self.ctx.in_import_at_rule => {
self.input.skip_ws();
if !is!(self, EOF) {
let state = self.input.state();
match self.parse() {
Ok(declaration) => {
values.push(ComponentValue::Declaration(declaration));
self.input.skip_ws();
}
Err(_) => {
self.input.reset(&state);
let supports_conditions = self.parse()?;
values.push(ComponentValue::SupportsCondition(supports_conditions));
}
}
}
}
_ => loop {
self.input.skip_ws();
if is!(self, EOF) {
break;
}
let value = match self.try_parse(|p| p.parse_generic_value()) {
Some(v) => v,
None => {
if is_one_of!(self, ";", ":") || (self.config.legacy_ie && is!(self, "=")) {
let tok = self.input.bump().unwrap();
ComponentValue::PreservedToken(Box::new(tok))
} else {
return Err(Error::new(
self.input.cur_span(),
ErrorKind::Expected("Declaration value"),
));
}
}
};
values.push(value);
},
};
Ok(values)
}
fn try_parse_variable_function<F>(
&mut self,
mut fallback: F,
has_before_variable: &mut bool,
) -> PResult<Option<ComponentValue>>
where
F: FnMut(&mut Parser<I>, bool) -> PResult<Option<ComponentValue>>,
{
if is!(self, EOF) {
return Ok(None);
}
match cur!(self) {
Token::Function { value, .. }
if matches_eq_ignore_ascii_case!(
value,
js_word!("var"),
js_word!("env"),
js_word!("constant")
) =>
{
*has_before_variable = true;
Ok(Some(ComponentValue::Function(self.parse()?)))
}
_ => fallback(self, *has_before_variable),
}
}
}
impl<I> Parse<Delimiter> for Parser<I>
where
I: ParserInput,
{
fn parse(&mut self) -> PResult<Delimiter> {
let span = self.input.cur_span();
if !is_one_of!(self, ",", "/", ";") {
return Err(Error::new(
span,
ErrorKind::Expected("',', '/' or ';' delim token"),
));
}
match cur!(self) {
tok!(",") => {
bump!(self);
return Ok(Delimiter {
span: span!(self, span.lo),
value: DelimiterValue::Comma,
});
}
tok!("/") => {
bump!(self);
return Ok(Delimiter {
span: span!(self, span.lo),
value: DelimiterValue::Solidus,
});
}
tok!(";") => {
bump!(self);
return Ok(Delimiter {
span: span!(self, span.lo),
value: DelimiterValue::Semicolon,
});
}
_ => {
unreachable!();
}
}
}
}
impl<I> Parse<Integer> for Parser<I>
where
I: ParserInput,
{
fn parse(&mut self) -> PResult<Integer> {
let span = self.input.cur_span();
if !is!(self, Number) {
return Err(Error::new(span, ErrorKind::ExpectedNumber));
}
let value = bump!(self);
match value {
Token::Number {
value,
raw,
type_flag,
..
} => {
if type_flag == NumberType::Number {
return Err(Error::new(span, ErrorKind::Expected("integer type")));
}
Ok(Integer {
span,
value: value.round() as i64,
raw: Some(raw),
})
}
_ => {
unreachable!()
}
}
}
}
impl<I> Parse<Number> for Parser<I>
where
I: ParserInput,
{
fn parse(&mut self) -> PResult<Number> {
let span = self.input.cur_span();
if !is!(self, Number) {
return Err(Error::new(span, ErrorKind::ExpectedNumber));
}
let value = bump!(self);
match value {
Token::Number { value, raw, .. } => Ok(Number {
span,
value,
raw: Some(raw),
}),
_ => {
unreachable!()
}
}
}
}
impl<I> Parse<CustomIdent> for Parser<I>
where
I: ParserInput,
{
fn parse(&mut self) -> PResult<CustomIdent> {
let span = self.input.cur_span();
if !is!(self, Ident) {
return Err(Error::new(span, ErrorKind::Expected("Ident")));
}
match bump!(self) {
Token::Ident { value, raw, .. } => {
if matches_eq_ignore_ascii_case!(
value,
js_word!("initial"),
js_word!("inherit"),
js_word!("unset"),
js_word!("revert"),
js_word!("default")
) {
return Err(Error::new(span, ErrorKind::InvalidCustomIdent(value)));
}
Ok(CustomIdent {
span,
value,
raw: Some(raw),
})
}
_ => {
unreachable!()
}
}
}
}
impl<I> Parse<DashedIdent> for Parser<I>
where
I: ParserInput,
{
fn parse(&mut self) -> PResult<DashedIdent> {
let span = self.input.cur_span();
if !is!(self, Ident) {
return Err(Error::new(span, ErrorKind::Expected("Ident")));
}
match bump!(self) {
Token::Ident { value, raw, .. } => {
if !value.starts_with("--") {
return Err(Error::new(
span,
ErrorKind::Expected("'--' at the start of dashed-ident"),
));
}
if value.len() < 3 {
return Err(Error::new(
span,
ErrorKind::Expected("dashed-ident must be at least 3 characters"),
));
}
Ok(DashedIdent {
span,
value: value[2..].into(),
raw: Some(raw),
})
}
_ => {
unreachable!()
}
}
}
}
impl<I> Parse<CustomPropertyName> for Parser<I>
where
I: ParserInput,
{
fn parse(&mut self) -> PResult<CustomPropertyName> {
let span = self.input.cur_span();
if !is!(self, Ident) {
return Err(Error::new(span, ErrorKind::Expected("Ident")));
}
match bump!(self) {
Token::Ident { value, raw, .. } => {
if !value.starts_with("--") {
return Err(Error::new(
span,
ErrorKind::Expected("'--' at the start of custom property name"),
));
} else if &*value == "--" {
return Err(Error::new(
span,
ErrorKind::Expected("valid dashed, '--' is not valid custom property name"),
));
}
Ok(CustomPropertyName {
span,
value,
raw: Some(raw),
})
}
_ => {
unreachable!()
}
}
}
}
impl<I> Parse<Ident> for Parser<I>
where
I: ParserInput,
{
fn parse(&mut self) -> PResult<Ident> {
let span = self.input.cur_span();
if !is!(self, Ident) {
return Err(Error::new(span, ErrorKind::Expected("Ident")));
}
match bump!(self) {
Token::Ident { value, raw, .. } => Ok(Ident {
span,
value,
raw: Some(raw),
}),
_ => {
unreachable!()
}
}
}
}
impl<I> Parse<Dimension> for Parser<I>
where
I: ParserInput,
{
fn parse(&mut self) -> PResult<Dimension> {
let span = self.input.cur_span();
if !is!(self, Dimension) {
return Err(Error::new(span, ErrorKind::Expected("dimension token")));
}
match cur!(self) {
Token::Dimension(box DimensionToken { unit, .. }) => {
match unit {
// <length>
unit if is_length_unit(unit)
|| (self.ctx.in_container_at_rule && is_container_lengths_unit(unit)) =>
{
Ok(Dimension::Length(self.parse()?))
}
// <angle>
unit if is_angle_unit(unit) => Ok(Dimension::Angle(self.parse()?)),
// <time>
unit if is_time_unit(unit) => Ok(Dimension::Time(self.parse()?)),
// <frequency>
unit if is_frequency_unit(unit) => Ok(Dimension::Frequency(self.parse()?)),
// <resolution>
unit if is_resolution_unit(unit) => Ok(Dimension::Resolution(self.parse()?)),
// <flex>
unit if is_flex_unit(unit) => Ok(Dimension::Flex(self.parse()?)),
_ => Ok(Dimension::UnknownDimension(self.parse()?)),
}
}
_ => {
unreachable!()
}
}
}
}
impl<I> Parse<Length> for Parser<I>
where
I: ParserInput,
{
fn parse(&mut self) -> PResult<Length> {
let span = self.input.cur_span();
if !is!(self, Dimension) {
return Err(Error::new(span, ErrorKind::Expected("dimension token")));
}
match bump!(self) {
Token::Dimension(box DimensionToken {
value,
unit,
raw_value,
raw_unit,
..
}) => {
// TODO validate
let unit_len = raw_unit.len() as u32;
Ok(Length {
span,
value: Number {
span: Span::new(span.lo, span.hi - BytePos(unit_len), Default::default()),
value,
raw: Some(raw_value),
},
unit: Ident {
span: Span::new(span.hi - BytePos(unit_len), span.hi, Default::default()),
value: unit.to_ascii_lowercase(),
raw: Some(raw_unit),
},
})
}
_ => {
unreachable!()
}
}
}
}
impl<I> Parse<Angle> for Parser<I>
where
I: ParserInput,
{
fn parse(&mut self) -> PResult<Angle> {
let span = self.input.cur_span();
if !is!(self, Dimension) {
return Err(Error::new(span, ErrorKind::Expected("dimension token")));
}
match bump!(self) {
Token::Dimension(box DimensionToken {
value,
unit,
raw_value,
raw_unit,
..
}) => {
if !is_angle_unit(&unit) {
return Err(Error::new(
span,
ErrorKind::Expected("'deg', 'grad', 'rad' or 'turn' units"),
));
}
let unit_len = raw_unit.len() as u32;
Ok(Angle {
span,
value: Number {
span: Span::new(span.lo, span.hi - BytePos(unit_len), Default::default()),
value,
raw: Some(raw_value),
},
unit: Ident {
span: Span::new(span.hi - BytePos(unit_len), span.hi, Default::default()),
value: unit.to_ascii_lowercase(),
raw: Some(raw_unit),
},
})
}
_ => {
unreachable!()
}
}
}
}
impl<I> Parse<Time> for Parser<I>
where
I: ParserInput,
{
fn parse(&mut self) -> PResult<Time> {
let span = self.input.cur_span();
if !is!(self, Dimension) {
return Err(Error::new(span, ErrorKind::Expected("dimension token")));
}
match bump!(self) {
Token::Dimension(box DimensionToken {
value,
unit,
raw_value,
raw_unit,
..
}) => {
if !is_time_unit(&unit) {
return Err(Error::new(span, ErrorKind::Expected("'s' or 'ms' units")));
}
let unit_len = raw_unit.len() as u32;
Ok(Time {
span,
value: Number {
span: Span::new(span.lo, span.hi - BytePos(unit_len), Default::default()),
value,
raw: Some(raw_value),
},
unit: Ident {
span: Span::new(span.hi - BytePos(unit_len), span.hi, Default::default()),
value: unit.to_ascii_lowercase(),
raw: Some(raw_unit),
},
})
}
_ => {
unreachable!()
}
}
}
}
impl<I> Parse<Frequency> for Parser<I>
where
I: ParserInput,
{
fn parse(&mut self) -> PResult<Frequency> {
let span = self.input.cur_span();
if !is!(self, Dimension) {
return Err(Error::new(span, ErrorKind::Expected("dimension token")));
}
match bump!(self) {
Token::Dimension(box DimensionToken {
value,
unit,
raw_value,
raw_unit,
..
}) => {
if !is_frequency_unit(&unit) {
return Err(Error::new(span, ErrorKind::Expected("'Hz' or 'kHz' units")));
}
let unit_len = raw_unit.len() as u32;
Ok(Frequency {
span,
value: Number {
span: Span::new(span.lo, span.hi - BytePos(unit_len), Default::default()),
value,
raw: Some(raw_value),
},
unit: Ident {
span: Span::new(span.hi - BytePos(unit_len), span.hi, Default::default()),
value: unit.to_ascii_lowercase(),
raw: Some(raw_unit),
},
})
}
_ => {
unreachable!()
}
}
}
}
impl<I> Parse<Resolution> for Parser<I>
where
I: ParserInput,
{
fn parse(&mut self) -> PResult<Resolution> {
let span = self.input.cur_span();
if !is!(self, Dimension) {
return Err(Error::new(span, ErrorKind::Expected("dimension token")));
}
match bump!(self) {
Token::Dimension(box DimensionToken {
value,
unit,
raw_value,
raw_unit,
..
}) => {
if !is_resolution_unit(&unit) {
return Err(Error::new(
span,
ErrorKind::Expected("'dpi', 'dpcm', 'dppx' or 'x' units"),
));
}
let unit_len = raw_unit.len() as u32;
Ok(Resolution {
span,
value: Number {
span: Span::new(span.lo, span.hi - BytePos(unit_len), Default::default()),
value,
raw: Some(raw_value),
},
unit: Ident {
span: Span::new(span.hi - BytePos(unit_len), span.hi, Default::default()),
value: unit.to_ascii_lowercase(),
raw: Some(raw_unit),
},
})
}
_ => {
unreachable!()
}
}
}
}
impl<I> Parse<Flex> for Parser<I>
where
I: ParserInput,
{
fn parse(&mut self) -> PResult<Flex> {
let span = self.input.cur_span();
if !is!(self, Dimension) {
return Err(Error::new(span, ErrorKind::Expected("dimension token")));
}
match bump!(self) {
Token::Dimension(box DimensionToken {
value,
unit,
raw_value,
raw_unit,
..
}) => {
if !is_flex_unit(&unit) {
return Err(Error::new(span, ErrorKind::Expected("'fr' unit")));
}
let unit_len = raw_unit.len() as u32;
Ok(Flex {
span,
value: Number {
span: Span::new(span.lo, span.hi - BytePos(unit_len), Default::default()),
value,
raw: Some(raw_value),
},
unit: Ident {
span: Span::new(span.hi - BytePos(unit_len), span.hi, Default::default()),
value: unit.to_ascii_lowercase(),
raw: Some(raw_unit),
},
})
}
_ => {
unreachable!()
}
}
}
}
impl<I> Parse<UnknownDimension> for Parser<I>
where
I: ParserInput,
{
fn parse(&mut self) -> PResult<UnknownDimension> {
let span = self.input.cur_span();
if !is!(self, Dimension) {
return Err(Error::new(span, ErrorKind::Expected("dimension token")));
}
match bump!(self) {
Token::Dimension(box DimensionToken {
value,
unit,
raw_value,
raw_unit,
..
}) => {
let unit_len = raw_unit.len() as u32;
Ok(UnknownDimension {
span,
value: Number {
span: Span::new(span.lo, span.hi - BytePos(unit_len), Default::default()),
value,
raw: Some(raw_value),
},
unit: Ident {
span: Span::new(span.hi - BytePos(unit_len), span.hi, Default::default()),
value: unit.to_lowercase().into(),
raw: Some(raw_unit),
},
})
}
_ => {
unreachable!()
}
}
}
}
impl<I> Parse<Color> for Parser<I>
where
I: ParserInput,
{
fn parse(&mut self) -> PResult<Color> {
let span = self.input.cur_span();
match cur!(self) {
// currentcolor | <system-color>
Token::Ident { value, .. }
if value.as_ref().eq_ignore_ascii_case("currentcolor")
|| is_system_color(value) =>
{
Ok(Color::CurrentColorOrSystemColor(self.parse()?))
}
// <device-cmyk()>
Token::Function { value, .. } if value.as_ref().eq_ignore_ascii_case("device-cmyk") => {
Ok(Color::Function(self.parse()?))
}
// <absolute-color-base>
_ => match self.parse() {
Ok(absolute_color_base) => Ok(Color::AbsoluteColorBase(absolute_color_base)),
Err(_) => {
return Err(Error::new(
span,
ErrorKind::Expected(
"hash, ident (with named color, system color, 'transparent' or \
'currentColor' value) or function (with color function name) token",
),
));
}
},
}
}
}
impl<I> Parse<AbsoluteColorBase> for Parser<I>
where
I: ParserInput,
{
fn parse(&mut self) -> PResult<AbsoluteColorBase> {
let span = self.input.cur_span();
match cur!(self) {
tok!("#") => Ok(AbsoluteColorBase::HexColor(self.parse()?)),
Token::Ident { value, .. } => {
if !(is_named_color(value) || value.as_ref().eq_ignore_ascii_case("transparent")) {
let span = self.input.cur_span();
return Err(Error::new(
span,
ErrorKind::Expected("known named color or 'transparent' keyword"),
));
}
Ok(AbsoluteColorBase::NamedColorOrTransparent(self.parse()?))
}
Token::Function { value, .. } if is_absolute_color_base_function(value) => {
Ok(AbsoluteColorBase::Function(self.parse()?))
}
_ => {
return Err(Error::new(
span,
ErrorKind::Expected(
"hash, ident (with named color or 'transparent' value) or function (with \
color function name) token",
),
));
}
}
}
}
impl<I> Parse<HexColor> for Parser<I>
where
I: ParserInput,
{
fn parse(&mut self) -> PResult<HexColor> {
let span = self.input.cur_span();
if !is!(self, "#") {
return Err(Error::new(span, ErrorKind::Expected("hash token")));
}
match bump!(self) {
Token::Hash { value, raw, .. } => {
if value.chars().any(|x| !x.is_ascii_hexdigit()) {
return Err(Error::new(
span,
ErrorKind::Unexpected("character in hex color"),
));
}
Ok(HexColor {
span,
value: value.to_ascii_lowercase(),
raw: Some(raw),
})
}
_ => {
unreachable!()
}
}
}
}
impl<I> Parse<AlphaValue> for Parser<I>
where
I: ParserInput,
{
fn parse(&mut self) -> PResult<AlphaValue> {
if !is_one_of!(self, "percentage", "number") {
let span = self.input.cur_span();
return Err(Error::new(
span,
ErrorKind::Expected("percentage or number token"),
));
}
match cur!(self) {
tok!("percentage") => Ok(AlphaValue::Percentage(self.parse()?)),
tok!("number") => Ok(AlphaValue::Number(self.parse()?)),
_ => {
unreachable!()
}
}
}
}
impl<I> Parse<Hue> for Parser<I>
where
I: ParserInput,
{
fn parse(&mut self) -> PResult<Hue> {
if !is_one_of!(self, "number", "dimension") {
let span = self.input.cur_span();
return Err(Error::new(
span,
ErrorKind::Expected("number or dimension token"),
));
}
match cur!(self) {
tok!("number") => Ok(Hue::Number(self.parse()?)),
tok!("dimension") => Ok(Hue::Angle(self.parse()?)),
_ => {
unreachable!()
}
}
}
}
impl<I> Parse<CmykComponent> for Parser<I>
where
I: ParserInput,
{
fn parse(&mut self) -> PResult<CmykComponent> {
if !is_one_of!(self, "number", "percentage", "function") {
let span = self.input.cur_span();
return Err(Error::new(
span,
ErrorKind::Expected("number, function or percentage token"),
));
}
match cur!(self) {
tok!("number") => Ok(CmykComponent::Number(self.parse()?)),
tok!("percentage") => Ok(CmykComponent::Percentage(self.parse()?)),
Token::Function { value, .. } => {
if !is_math_function(value) {
let span = self.input.cur_span();
return Err(Error::new(span, ErrorKind::Expected("math function token")));
}
Ok(CmykComponent::Function(self.parse()?))
}
_ => {
unreachable!()
}
}
}
}
impl<I> Parse<Percentage> for Parser<I>
where
I: ParserInput,
{
fn parse(&mut self) -> PResult<Percentage> {
let span = self.input.cur_span();
if !is!(self, Percentage) {
return Err(Error::new(span, ErrorKind::Expected("percentage token")));
}
match bump!(self) {
Token::Percentage { value, raw } => {
let value = Number {
span: Span::new(span.lo, span.hi - BytePos(1), Default::default()),
value,
raw: Some(raw),
};
Ok(Percentage { span, value })
}
_ => {
unreachable!()
}
}
}
}
impl<I> Parse<Str> for Parser<I>
where
I: ParserInput,
{
fn parse(&mut self) -> PResult<Str> {
let span = self.input.cur_span();
if !is!(self, "string") {
return Err(Error::new(span, ErrorKind::Expected("string token")));
}
match bump!(self) {
Token::String { value, raw } => Ok(Str {
span,
value,
raw: Some(raw),
}),
_ => {
unreachable!()
}
}
}
}
impl<I> Parse<Url> for Parser<I>
where
I: ParserInput,
{
fn parse(&mut self) -> PResult<Url> {
let span = self.input.cur_span();
if !is_one_of!(self, Url, Function) {
return Err(Error::new(
span,
ErrorKind::Expected("url or function (with 'url' or 'src' name) token"),
));
}
match bump!(self) {
Token::Url { value, raw } => {
let name_length = raw.0.len() as u32;
let name = Ident {
span: Span::new(span.lo, span.lo + BytePos(name_length), Default::default()),
value: js_word!("url"),
raw: Some(raw.0),
};
let value = Some(Box::new(UrlValue::Raw(UrlValueRaw {
span: Span::new(
span.lo + BytePos(name_length + 1),
span.hi - BytePos(1),
Default::default(),
),
value,
raw: Some(raw.1),
})));
Ok(Url {
span: span!(self, span.lo),
name,
value,
modifiers: None,
})
}
Token::Function {
value: function_name,
raw: raw_function_name,
} => {
if !matches_eq_ignore_ascii_case!(function_name, js_word!("url"), js_word!("src")) {
return Err(Error::new(
span,
ErrorKind::Expected("'url' or 'src' name of a function token"),
));
}
let name = Ident {
span: Span::new(span.lo, span.hi - BytePos(1), Default::default()),
value: function_name.to_ascii_lowercase(),
raw: Some(raw_function_name),
};
self.input.skip_ws();
let value = match cur!(self) {
tok!("string") => Some(Box::new(UrlValue::Str(self.parse()?))),
_ => None,
};
self.input.skip_ws();
let mut modifiers = vec![];
loop {
if is!(self, ")") {
break;
}
match cur!(self) {
tok!("ident") => {
modifiers.push(UrlModifier::Ident(self.parse()?));
}
tok!("function") => {
modifiers.push(UrlModifier::Function(self.parse()?));
}
_ => {
let span = self.input.cur_span();
return Err(Error::new(span, ErrorKind::Expected("ident or function")));
}
}
self.input.skip_ws();
}
expect!(self, ")");
Ok(Url {
span: span!(self, span.lo),
name,
value,
modifiers: Some(modifiers),
})
}
_ => {
unreachable!()
}
}
}
}
// <urange> =
// u '+' <ident-token> '?'* |
// u <dimension-token> '?'* |
// u <number-token> '?'* |
// u <number-token> <dimension-token> |
// u <number-token> <number-token> |
// u '+' '?'+
impl<I> Parse<UnicodeRange> for Parser<I>
where
I: ParserInput,
{
fn parse(&mut self) -> PResult<UnicodeRange> {
let span = self.input.cur_span();
let mut unicode_range = String::new();
// should start with `u` or `U`
match cur!(self) {
Token::Ident { value, .. } if matches_eq_ignore_ascii_case!(value, js_word!("u")) => {
let u = match bump!(self) {
Token::Ident { value, .. } => value,
_ => {
unreachable!();
}
};
unicode_range.push_str(&u);
}
_ => {
return Err(Error::new(span, ErrorKind::Expected("'u' ident token")));
}
};
match cur!(self) {
// u '+' <ident-token> '?'*
// u '+' '?'+
Token::Delim { value } if *value == '+' => {
let plus = match bump!(self) {
Token::Delim { value } => value,
_ => {
unreachable!();
}
};
unicode_range.push(plus);
if is!(self, Ident) {
let ident = match bump!(self) {
Token::Ident { value, .. } => value,
_ => {
unreachable!();
}
};
unicode_range.push_str(&ident);
loop {
if !is!(self, "?") {
break;
}
let question = match bump!(self) {
Token::Delim { value } => value,
_ => {
unreachable!();
}
};
unicode_range.push(question);
}
} else {
let question = match bump!(self) {
Token::Delim { value } if value == '?' => value,
_ => {
return Err(Error::new(span, ErrorKind::Expected("'?' delim token")));
}
};
unicode_range.push(question);
loop {
if !is!(self, "?") {
break;
}
let question = match bump!(self) {
Token::Delim { value } => value,
_ => {
unreachable!();
}
};
unicode_range.push(question);
}
}
}
// u <number-token> '?'*
// u <number-token> <dimension-token>
// u <number-token> <number-token>
tok!("number") => {
let number = match bump!(self) {
Token::Number { raw, .. } => raw,
_ => {
unreachable!();
}
};
unicode_range.push_str(&number);
if !is!(self, EOF) {
match cur!(self) {
tok!("?") => {
let question = match bump!(self) {
Token::Delim { value } => value,
_ => {
unreachable!();
}
};
unicode_range.push(question);
loop {
if !is!(self, "?") {
break;
}
let question = match bump!(self) {
Token::Delim { value } => value,
_ => {
unreachable!();
}
};
unicode_range.push(question);
}
}
tok!("dimension") => {
let raw = match bump!(self) {
Token::Dimension(box DimensionToken {
raw_value,
raw_unit,
..
}) => (raw_value, raw_unit),
_ => {
unreachable!();
}
};
unicode_range.push_str(&raw.0);
unicode_range.push_str(&raw.1);
}
tok!("number") => {
let number = match bump!(self) {
Token::Number { raw, .. } => raw,
_ => {
unreachable!();
}
};
unicode_range.push_str(&number);
}
_ => {}
}
}
}
// u <dimension-token> '?'*
tok!("dimension") => {
let raw = match bump!(self) {
Token::Dimension(box DimensionToken {
raw_value,
raw_unit,
..
}) => (raw_value, raw_unit),
_ => {
unreachable!();
}
};
unicode_range.push_str(&raw.0);
unicode_range.push_str(&raw.1);
loop {
if !is!(self, "?") {
break;
}
let question = match bump!(self) {
Token::Delim { value } => value,
_ => {
unreachable!();
}
};
unicode_range.push(question);
}
}
_ => {
return Err(Error::new(
span,
ErrorKind::Expected("dimension, number or '?' delim token"),
));
}
}
let mut chars = unicode_range.chars();
// 1. Skipping the first u token, concatenate the representations of all the
// tokens in the production together. Let this be text.
chars.next();
// 2. If the first character of text is U+002B PLUS SIGN, consume it. Otherwise,
// this is an invalid <urange>, and this algorithm must exit.
let mut next = chars.next();
if next != Some('+') {
return Err(Error::new(
span,
ErrorKind::Expected("'+' character after 'u' in unicode range"),
));
} else {
next = chars.next();
}
// 3. Consume as many hex digits from text as possible. then consume as many
// U+003F QUESTION MARK (?) code points as possible. If zero code points
// were consumed, or more than six code points were consumed, this is an
// invalid <urange>, and this algorithm must exit.
let mut start = String::new();
loop {
match next {
Some(c) if c.is_ascii_digit() => {
start.push(c);
next = chars.next();
}
Some(c @ 'A'..='F') | Some(c @ 'a'..='f') => {
start.push(c.to_ascii_lowercase());
next = chars.next();
}
_ => {
break;
}
}
}
let mut has_question_mark = false;
while let Some(c @ '?') = next {
has_question_mark = true;
start.push(c);
next = chars.next();
}
let len = start.len();
if len == 0 || len > 6 {
return Err(Error::new(
span,
ErrorKind::Expected(
"valid length (minimum 1 or maximum 6 hex digits) in the start of unicode \
range",
),
));
}
// If any U+003F QUESTION MARK (?) code points were consumed, then:
if has_question_mark {
// 1. If there are any code points left in text, this is an invalid <urange>,
// and this algorithm must exit.
if next.is_some() {
return Err(Error::new(
span,
ErrorKind::Expected("no characters after '?' in unicode range"),
));
}
// 2. Interpret the consumed code points
// as a hexadecimal number, with the U+003F QUESTION MARK (?) code points
// replaced by U+0030 DIGIT ZERO (0) code points. This is the start value.
//
// 3. Interpret the consumed code points as a hexadecimal number again, with the
// U+003F QUESTION MARK (?) code points replaced by U+0046 LATIN CAPITAL LETTER
// F (F) code points. This is the end value.
//
// 4. Exit this algorithm.
return Ok(UnicodeRange {
span: span!(self, span.lo),
start: start.into(),
end: None,
raw: Some(unicode_range.into()),
});
}
// Otherwise, interpret the consumed code points as a hexadecimal number. This
// is the start value.
// 4. If there are no code points left in text, The end value is the same as the
// start value. Exit this algorithm.
if next.is_none() {
return Ok(UnicodeRange {
span: span!(self, span.lo),
start: start.into(),
end: None,
raw: Some(unicode_range.into()),
});
}
// 5. If the next code point in text is U+002D HYPHEN-MINUS (-), consume it.
// Otherwise, this is an invalid <urange>, and this algorithm must exit.
if next != Some('-') {
return Err(Error::new(
span,
ErrorKind::Expected("'-' between start and end in unicode range"),
));
} else {
next = chars.next();
}
// 6. Consume as many hex digits as possible from text.
// If zero hex digits were consumed, or more than 6 hex digits were consumed,
// this is an invalid <urange>, and this algorithm must exit. If there are any
// code points left in text, this is an invalid <urange>, and this algorithm
// must exit.
let mut end = String::new();
loop {
match next {
Some(c) if c.is_ascii_digit() => {
end.push(c);
next = chars.next();
}
Some(c @ 'A'..='F') | Some(c @ 'a'..='f') => {
end.push(c.to_ascii_lowercase());
next = chars.next();
}
_ => {
break;
}
}
}
let len = end.len();
if len == 0 || len > 6 {
return Err(Error::new(
span,
ErrorKind::Expected(
"valid length (minimum 1 or maximum 6 hex digits) in the end of unicode range",
),
));
}
if chars.next().is_some() {
return Err(Error::new(
span,
ErrorKind::Expected("no characters after end in unicode range"),
));
}
return Ok(UnicodeRange {
span: span!(self, span.lo),
start: start.into(),
end: Some(end.into()),
raw: Some(unicode_range.into()),
});
}
}
impl<I> Parse<CalcSum> for Parser<I>
where
I: ParserInput,
{
fn parse(&mut self) -> PResult<CalcSum> {
let start = self.input.cur_span().lo;
let mut expressions = vec![];
let calc_product = CalcProductOrOperator::Product(self.parse()?);
let mut end = match calc_product {
CalcProductOrOperator::Product(ref calc_product) => calc_product.span.hi,
_ => {
unreachable!();
}
};
expressions.push(calc_product);
loop {
self.input.skip_ws();
if is!(self, EOF) {
break;
}
match cur!(self) {
tok!("+") | tok!("-") => {
let operator = CalcProductOrOperator::Operator(self.parse()?);
expressions.push(operator);
self.input.skip_ws();
let calc_product = CalcProductOrOperator::Product(self.parse()?);
end = match calc_product {
CalcProductOrOperator::Product(ref calc_product) => calc_product.span.hi,
_ => {
unreachable!();
}
};
expressions.push(calc_product);
}
_ => {
break;
}
}
}
Ok(CalcSum {
span: Span::new(start, end, Default::default()),
expressions,
})
}
}
impl<I> Parse<CalcProduct> for Parser<I>
where
I: ParserInput,
{
fn parse(&mut self) -> PResult<CalcProduct> {
let start = self.input.cur_span().lo;
let mut expressions = vec![];
let calc_value = CalcValueOrOperator::Value(self.parse()?);
let mut end = match calc_value {
CalcValueOrOperator::Value(ref calc_value) => match calc_value {
CalcValue::Number(item) => item.span.hi,
CalcValue::Percentage(item) => item.span.hi,
CalcValue::Constant(item) => item.span.hi,
CalcValue::Sum(item) => item.span.hi,
CalcValue::Function(item) => item.span.hi,
CalcValue::Dimension(item) => match item {
Dimension::Length(item) => item.span.hi,
Dimension::Angle(item) => item.span.hi,
Dimension::Time(item) => item.span.hi,
Dimension::Frequency(item) => item.span.hi,
Dimension::Resolution(item) => item.span.hi,
Dimension::Flex(item) => item.span.hi,
Dimension::UnknownDimension(item) => item.span.hi,
},
},
_ => {
unreachable!();
}
};
expressions.push(calc_value);
loop {
self.input.skip_ws();
if is!(self, EOF) {
break;
}
match cur!(self) {
tok!("*") | tok!("/") => {
let operator = CalcValueOrOperator::Operator(self.parse()?);
expressions.push(operator);
self.input.skip_ws();
let calc_value = CalcValueOrOperator::Value(self.parse()?);
end = match calc_value {
CalcValueOrOperator::Value(ref calc_value) => match calc_value {
CalcValue::Number(item) => item.span.hi,
CalcValue::Percentage(item) => item.span.hi,
CalcValue::Constant(item) => item.span.hi,
CalcValue::Sum(item) => item.span.hi,
CalcValue::Function(item) => item.span.hi,
CalcValue::Dimension(item) => match item {
Dimension::Length(item) => item.span.hi,
Dimension::Angle(item) => item.span.hi,
Dimension::Time(item) => item.span.hi,
Dimension::Frequency(item) => item.span.hi,
Dimension::Resolution(item) => item.span.hi,
Dimension::Flex(item) => item.span.hi,
Dimension::UnknownDimension(item) => item.span.hi,
},
},
_ => {
unreachable!();
}
};
expressions.push(calc_value);
}
_ => {
break;
}
}
}
Ok(CalcProduct {
span: Span::new(start, end, Default::default()),
expressions,
})
}
}
impl<I> Parse<CalcOperator> for Parser<I>
where
I: ParserInput,
{
fn parse(&mut self) -> PResult<CalcOperator> {
let span = self.input.cur_span();
match cur!(self) {
tok!("+") => {
bump!(self);
Ok(CalcOperator {
span: span!(self, span.lo),
value: CalcOperatorType::Add,
})
}
tok!("-") => {
bump!(self);
Ok(CalcOperator {
span: span!(self, span.lo),
value: CalcOperatorType::Sub,
})
}
tok!("*") => {
bump!(self);
Ok(CalcOperator {
span: span!(self, span.lo),
value: CalcOperatorType::Mul,
})
}
tok!("/") => {
bump!(self);
Ok(CalcOperator {
span: span!(self, span.lo),
value: CalcOperatorType::Div,
})
}
_ => {
let span = self.input.cur_span();
return Err(Error::new(
span,
ErrorKind::Expected("'+', '-', '*' or '/' delim tokens"),
));
}
}
}
}
impl<I> Parse<CalcValue> for Parser<I>
where
I: ParserInput,
{
fn parse(&mut self) -> PResult<CalcValue> {
match cur!(self) {
tok!("number") => Ok(CalcValue::Number(self.parse()?)),
tok!("dimension") => Ok(CalcValue::Dimension(self.parse()?)),
tok!("percentage") => Ok(CalcValue::Percentage(self.parse()?)),
Token::Ident { value, .. } => {
match value.to_ascii_lowercase() {
js_word!("e")
| js_word!("pi")
| js_word!("infinity")
| js_word!("-infinity")
| js_word!("nan") => {}
_ => {
let span = self.input.cur_span();
return Err(Error::new(
span,
ErrorKind::Expected(
"'e', 'pi', 'infinity', '-infinity' or 'NaN', ident tokens",
),
));
}
}
Ok(CalcValue::Constant(self.parse()?))
}
tok!("(") => {
let span = self.input.cur_span();
expect!(self, "(");
self.input.skip_ws();
let mut calc_sum_in_parens: CalcSum = self.parse()?;
self.input.skip_ws();
expect!(self, ")");
calc_sum_in_parens.span = span!(self, span.lo);
Ok(CalcValue::Sum(calc_sum_in_parens))
}
tok!("function") => Ok(CalcValue::Function(self.parse()?)),
_ => {
let span = self.input.cur_span();
return Err(Error::new(
span,
ErrorKind::Expected(
"'number', 'dimension', 'percentage', 'ident', '(' or 'function' tokens",
),
));
}
}
}
}
impl<I> Parse<FamilyName> for Parser<I>
where
I: ParserInput,
{
fn parse(&mut self) -> PResult<FamilyName> {
match cur!(self) {
tok!("string") => Ok(FamilyName::Str(self.parse()?)),
tok!("ident") => {
let span = self.input.cur_span();
let mut value = vec![self.parse()?];
loop {
self.input.skip_ws();
if !is!(self, "ident") {
break;
}
value.push(self.parse()?);
}
Ok(FamilyName::SequenceOfCustomIdents(SequenceOfCustomIdents {
span: span!(self, span.lo),
value,
}))
}
_ => {
let span = self.input.cur_span();
return Err(Error::new(
span,
ErrorKind::Expected("'string' or 'ident' tokens"),
));
}
}
}
}
pub(crate) fn is_math_function(name: &JsWord) -> bool {
matches_eq_ignore_ascii_case!(
name,
js_word!("calc"),
js_word!("-moz-calc"),
js_word!("-webkit-calc"),
js_word!("sin"),
js_word!("cos"),
js_word!("tan"),
js_word!("asin"),
js_word!("acos"),
js_word!("atan"),
js_word!("sqrt"),
js_word!("exp"),
js_word!("abs"),
js_word!("sign"),
js_word!("min"),
js_word!("max"),
js_word!("hypot"),
js_word!("clamp"),
js_word!("round"),
js_word!("mod"),
js_word!("rem"),
js_word!("atan2"),
js_word!("pow"),
js_word!("log")
)
}
fn is_absolute_color_base_function(name: &JsWord) -> bool {
matches_eq_ignore_ascii_case!(
name,
js_word!("rgb"),
js_word!("rgba"),
js_word!("hsl"),
js_word!("hsla"),
js_word!("hwb"),
js_word!("lab"),
js_word!("lch"),
js_word!("oklab"),
js_word!("oklch"),
js_word!("color"),
js_word!("color-mix"),
js_word!("color-contrast")
)
}
fn is_system_color(name: &JsWord) -> bool {
matches_eq_ignore_ascii_case!(
name,
js_word!("canvas"),
js_word!("canvastext"),
js_word!("linktext"),
js_word!("visitedtext"),
js_word!("activetext"),
js_word!("buttonface"),
js_word!("buttontext"),
js_word!("buttonborder"),
js_word!("field"),
js_word!("fieldtext"),
js_word!("highlight"),
js_word!("highlighttext"),
js_word!("selecteditem"),
js_word!("selecteditemtext"),
js_word!("mark"),
js_word!("marktext"),
js_word!("graytext"),
// Deprecated
js_word!("activeborder"),
js_word!("activecaption"),
js_word!("appWorkspace"),
js_word!("background"),
js_word!("buttonhighlight"),
js_word!("buttonshadow"),
js_word!("captiontext"),
js_word!("inactiveborder"),
js_word!("inactivecaption"),
js_word!("inactivecaptiontext"),
js_word!("infobackground"),
js_word!("infotext"),
js_word!("menu"),
js_word!("menutext"),
js_word!("scrollbar"),
js_word!("threeddarkshadow"),
js_word!("threedface"),
js_word!("threedhighlight"),
js_word!("threedlightshadow"),
js_word!("threedshadow"),
js_word!("window"),
js_word!("windowframe"),
js_word!("windowtext"),
// Mozilla System Color Extensions
js_word!("-moz-buttondefault"),
js_word!("-moz-buttonhoverface"),
js_word!("-moz-buttonhovertext"),
js_word!("-moz-cellhighlight"),
js_word!("-moz-cellhighlighttext"),
js_word!("-moz-combobox"),
js_word!("-moz-comboboxtext"),
js_word!("-moz-dialog"),
js_word!("-moz-dialogtext"),
js_word!("-moz-dragtargetzone"),
js_word!("-moz-eventreerow"),
js_word!("-moz-html-cellhighlight"),
js_word!("-moz-html-cellhighlighttext"),
js_word!("-moz-mac-accentdarkestshadow"),
js_word!("-moz-mac-accentdarkshadow"),
js_word!("-moz-mac-accentface"),
js_word!("-moz-mac-accentlightesthighlight"),
js_word!("-moz-mac-accentlightshadow"),
js_word!("-moz-mac-accentregularhighlight"),
js_word!("-moz-mac-accentregularshadow"),
js_word!("-moz-mac-chrome-active"),
js_word!("-moz-mac-chrome-inactive"),
js_word!("-moz-mac-focusring"),
js_word!("-moz-mac-menuselect"),
js_word!("-moz-mac-menushadow"),
js_word!("-moz-mac-menutextselect"),
js_word!("-moz-menuhover"),
js_word!("-moz-menuhovertext"),
js_word!("-moz-menubartext"),
js_word!("-moz-menubarhovertext"),
js_word!("-moz-nativehyperlinktext"),
js_word!("-moz-oddtreerow"),
js_word!("-moz-win-communicationstext"),
js_word!("-moz-win-mediatext"),
js_word!("-moz-win-accentcolor"),
js_word!("-moz-win-accentcolortext"),
// Mozilla Color Preference Extensions
js_word!("-moz-activehyperlinktext"),
js_word!("-moz-default-background-color"),
js_word!("-moz-default-color"),
js_word!("-moz-hyperlinktext"),
js_word!("-moz-visitedhyperlinktext")
)
}
fn is_named_color(name: &JsWord) -> bool {
matches_eq_ignore_ascii_case!(
name,
js_word!("aliceblue"),
js_word!("antiquewhite"),
js_word!("aqua"),
js_word!("aquamarine"),
js_word!("azure"),
js_word!("beige"),
js_word!("bisque"),
js_word!("black"),
js_word!("blanchedalmond"),
js_word!("blue"),
js_word!("blueviolet"),
js_word!("brown"),
js_word!("burlywood"),
js_word!("cadetblue"),
js_word!("chartreuse"),
js_word!("chocolate"),
js_word!("coral"),
js_word!("cornflowerblue"),
js_word!("cornsilk"),
js_word!("crimson"),
js_word!("cyan"),
js_word!("darkblue"),
js_word!("darkcyan"),
js_word!("darkgoldenrod"),
js_word!("darkgray"),
js_word!("darkgreen"),
js_word!("darkgrey"),
js_word!("darkkhaki"),
js_word!("darkmagenta"),
js_word!("darkolivegreen"),
js_word!("darkorange"),
js_word!("darkorchid"),
js_word!("darkred"),
js_word!("darksalmon"),
js_word!("darkseagreen"),
js_word!("darkslateblue"),
js_word!("darkslategray"),
js_word!("darkslategrey"),
js_word!("darkturquoise"),
js_word!("darkviolet"),
js_word!("deeppink"),
js_word!("deepskyblue"),
js_word!("dimgray"),
js_word!("dimgrey"),
js_word!("dodgerblue"),
js_word!("firebrick"),
js_word!("floralwhite"),
js_word!("forestgreen"),
js_word!("fuchsia"),
js_word!("gainsboro"),
js_word!("ghostwhite"),
js_word!("gold"),
js_word!("goldenrod"),
js_word!("gray"),
js_word!("green"),
js_word!("greenyellow"),
js_word!("grey"),
js_word!("honeydew"),
js_word!("hotpink"),
js_word!("indianred"),
js_word!("indigo"),
js_word!("ivory"),
js_word!("khaki"),
js_word!("lavender"),
js_word!("lavenderblush"),
js_word!("lawngreen"),
js_word!("lemonchiffon"),
js_word!("lightblue"),
js_word!("lightcoral"),
js_word!("lightcyan"),
js_word!("lightgoldenrodyellow"),
js_word!("lightgray"),
js_word!("lightgreen"),
js_word!("lightgrey"),
js_word!("lightpink"),
js_word!("lightsalmon"),
js_word!("lightseagreen"),
js_word!("lightskyblue"),
js_word!("lightslategray"),
js_word!("lightslategrey"),
js_word!("lightsteelblue"),
js_word!("lightyellow"),
js_word!("lime"),
js_word!("limegreen"),
js_word!("linen"),
js_word!("magenta"),
js_word!("maroon"),
js_word!("mediumaquamarine"),
js_word!("mediumblue"),
js_word!("mediumorchid"),
js_word!("mediumpurple"),
js_word!("mediumseagreen"),
js_word!("mediumslateblue"),
js_word!("mediumspringgreen"),
js_word!("mediumturquoise"),
js_word!("mediumvioletred"),
js_word!("midnightblue"),
js_word!("mintcream"),
js_word!("mistyrose"),
js_word!("moccasin"),
js_word!("navajowhite"),
js_word!("navy"),
js_word!("oldlace"),
js_word!("olive"),
js_word!("olivedrab"),
js_word!("orange"),
js_word!("orangered"),
js_word!("orchid"),
js_word!("palegoldenrod"),
js_word!("palegreen"),
js_word!("paleturquoise"),
js_word!("palevioletred"),
js_word!("papayawhip"),
js_word!("peachpuff"),
js_word!("peru"),
js_word!("pink"),
js_word!("plum"),
js_word!("powderblue"),
js_word!("purple"),
js_word!("rebeccapurple"),
js_word!("red"),
js_word!("rosybrown"),
js_word!("royalblue"),
js_word!("saddlebrown"),
js_word!("salmon"),
js_word!("sandybrown"),
js_word!("seagreen"),
js_word!("seashell"),
js_word!("sienna"),
js_word!("silver"),
js_word!("skyblue"),
js_word!("slateblue"),
js_word!("slategray"),
js_word!("slategrey"),
js_word!("snow"),
js_word!("springgreen"),
js_word!("steelblue"),
js_word!("tan"),
js_word!("teal"),
js_word!("thistle"),
js_word!("tomato"),
js_word!("turquoise"),
js_word!("violet"),
js_word!("wheat"),
js_word!("white"),
js_word!("whitesmoke"),
js_word!("yellow"),
js_word!("yellowgreen")
)
}
fn is_length_unit(unit: &JsWord) -> bool {
matches_eq_ignore_ascii_case!(
unit,
js_word!("em"),
js_word!("rem"),
js_word!("ex"),
js_word!("rex"),
js_word!("cap"),
js_word!("rcap"),
js_word!("ch"),
js_word!("rch"),
js_word!("ic"),
js_word!("ric"),
js_word!("lh"),
js_word!("rlh"),
// Viewport-percentage Lengths
js_word!("vw"),
js_word!("svw"),
js_word!("lvw"),
js_word!("dvw"),
js_word!("vh"),
js_word!("svh"),
js_word!("lvh"),
js_word!("dvh"),
js_word!("vi"),
js_word!("svi"),
js_word!("lvi"),
js_word!("dvi"),
js_word!("vb"),
js_word!("svb"),
js_word!("lvb"),
js_word!("dvb"),
js_word!("vmin"),
js_word!("svmin"),
js_word!("lvmin"),
js_word!("dvmin"),
js_word!("vmax"),
js_word!("svmax"),
js_word!("lvmax"),
js_word!("dvmax"),
// Absolute lengths
js_word!("cm"),
js_word!("mm"),
js_word!("q"),
js_word!("in"),
js_word!("pc"),
js_word!("pt"),
js_word!("px"),
js_word!("mozmm")
)
}
fn is_container_lengths_unit(unit: &JsWord) -> bool {
matches_eq_ignore_ascii_case!(
unit,
js_word!("cqw"),
js_word!("cqh"),
js_word!("cqi"),
js_word!("cqb"),
js_word!("cqmin"),
js_word!("cqmax")
)
}
fn is_angle_unit(unit: &JsWord) -> bool {
matches_eq_ignore_ascii_case!(
unit,
js_word!("deg"),
js_word!("grad"),
js_word!("rad"),
js_word!("turn")
)
}
fn is_time_unit(unit: &JsWord) -> bool {
matches_eq_ignore_ascii_case!(unit, js_word!("s"), js_word!("ms"))
}
fn is_frequency_unit(unit: &JsWord) -> bool {
matches_eq_ignore_ascii_case!(unit, js_word!("hz"), js_word!("khz"))
}
fn is_resolution_unit(unit: &JsWord) -> bool {
matches_eq_ignore_ascii_case!(
unit,
js_word!("dpi"),
js_word!("dpcm"),
js_word!("dppx"),
js_word!("x")
)
}
fn is_flex_unit(unit: &JsWord) -> bool {
matches_eq_ignore_ascii_case!(unit, js_word!("fr"))
}