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use super::*;
impl AstVariant {
pub fn parse(input: &str) -> IResult<&str, Self> {
let not = opt(tuple((tag("not"), tag("-"))));
let vs = separated_list0(tag("-"), alphanumeric1);
let (rest, (not, r)) = tuple((not, vs))(input)?;
let names: Vec<_> = r.into_iter().map(|f| f.to_string()).collect();
let pseudo = Self::check_pseudo(&names.iter().map(<_>::as_ref).collect::<Vec<_>>());
Ok((rest, Self { not: not.is_some(), pseudo, names }))
}
pub fn parse_many(input: &str) -> IResult<&str, Vec<Self>> {
let (rest, out) = many0(tuple((Self::parse, alt((tag("::"), tag(":"))))))(input)?;
let mut v = vec![];
for (a, s) in out {
let mut a = a;
if s == "::" {
a.pseudo = true
}
v.push(a)
}
Ok((rest, v))
}
#[rustfmt::skip]
fn check_pseudo(names: &[&str]) -> bool {
matches!(names
, ["after"]
| ["before"]
| ["backdrop"]
| ["marker"]
| ["placeholder"]
| ["selection"]
| ["first", "line"]
| ["first", "litter"]
| ["first", "selector", "button"]
| ["target", "text"]
)
}
}
impl AstArbitrary {
pub fn parse(input: &str) -> IResult<&str, Self> {
let (rest, r) = delimited(char('['), take_till1(|c| c != ']'), char(']'))(input)?;
Ok((rest, Self(r.to_string())))
}
pub fn parse_maybe(input: &str) -> IResult<&str, Option<Self>> {
let (rest, rhs) = opt(tuple((tag("-"), Self::parse)))(input)?;
Ok((rest, rhs.map(|(_, e)| e)))
}
}
impl AstElement {
fn parse(input: &str) -> IResult<&str, Self> {
let stop = |c: char| -> bool { matches!(c, ':' | '|' | '[' | ']' | '(' | ')' | ' ') };
let (rest, s) = take_till(stop)(input)?;
Ok((rest, Self(s.to_string())))
}
}
impl AstElement {
#[inline]
pub fn is_self_reference(&self) -> bool {
self.0 == "&"
}
pub fn as_usize(&self) -> Option<usize> {
parse_integer(&self.0).ok().map(|(_, o)| o)
}
pub fn as_fraction(&self) -> Option<(usize, usize)> {
parse_fraction(&self.0).ok().map(|(_, o)| o)
}
}
impl AstStyle {
pub fn parse(input: &str) -> IResult<&str, Self> {
let es = separated_list0(tag("-"), AstElement::parse);
let (rest, rhs) = tuple((AstVariant::parse_many, opt(tag("-")), es, AstArbitrary::parse_maybe))(input)?;
let (variants, neg, atoms, arbitrary) = rhs;
Ok((rest, Self { negative: neg.is_some(), variants, elements: atoms, arbitrary }))
}
pub fn parse_list(input: &str) -> IResult<&str, Vec<Self>> {
separated_list0(multispace1, Self::parse)(input)
}
}
impl AstStyle {
#[inline]
pub fn view_elements(&self) -> Vec<&str> {
self.elements.iter().map(|s| s.0.as_str()).collect()
}
#[inline]
pub fn view_arbitrary(&self) -> &str {
match &self.arbitrary {
None => "",
Some(setter) => setter.0.as_str(),
}
}
pub fn normalization(self) -> Self {
self
}
}
impl AstGroup {
pub fn parse(input: &str) -> IResult<&str, Self> {
alt((Self::parse_grouped, Self::parse_standalone))(input)
}
pub fn parse_list(input: &str) -> IResult<&str, Vec<Self>> {
separated_list0(multispace1, Self::parse)(input)
}
#[inline]
fn parse_standalone(input: &str) -> IResult<&str, Self> {
let (rest, inner) = AstStyle::parse(input)?;
Ok((rest, Self::Standalone { inner }))
}
#[inline]
fn parse_grouped(input: &str) -> IResult<&str, Self> {
let lhs = tuple((AstVariant::parse_many, opt(AstElement::parse)));
let rhs = delimited(char('('), AstStyle::parse_list, char(')'));
let (rest, ((variants, elements), inner)) = tuple((lhs, rhs))(input)?;
Ok((rest, Self::Grouped { variants, elements, inner }))
}
pub fn expand(s: Self, buffer: &mut Vec<AstStyle>) {
match s {
Self::Standalone { inner } => buffer.push(inner),
Self::Grouped { variants: vl, elements: el, inner } => {
for AstStyle { negative, variants: vr, elements: er, arbitrary } in inner {
let mut variants = vl.clone();
variants.extend(vr.into_iter());
let mut elements = match el.clone() {
None => vec![],
Some(s) => vec![s],
};
elements.extend(er.into_iter());
let new = AstStyle { negative, variants, elements, arbitrary };
buffer.push(new);
}
}
}
}
pub fn expand_list(v: Vec<Self>) -> Vec<AstStyle> {
let mut out = vec![];
for i in v {
Self::expand(i, &mut out)
}
out
}
}
impl TailwindBuilder {
pub fn parse_styles(input: &str) -> Result<Vec<AstStyle>> {
let g = AstGroup::parse_list(input.trim())?.1;
Ok(AstGroup::expand_list(g))
}
}
#[test]
fn test_style() {
println!("{:#?}", AstStyle::parse("not-hover:sm:text-red-200").unwrap().1);
println!("{:#?}", AstStyle::parse_list("w-full sm:w-auto").unwrap().1);
}
#[test]
fn test_group() {
println!("{:#?}", AstGroup::parse_list("w(full sm:auto)").unwrap().1);
println!("{:#?}", AstGroup::parse_list("not-hover:sm:text-red-200").unwrap().1);
}
#[test]
fn test_group_expand() {
println!("{:#?}", TailwindBuilder::parse_styles("w(full sm:auto)"));
}
