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-rw-r--r--askama_parser/src/expr.rs52
-rw-r--r--askama_parser/src/lib.rs71
-rw-r--r--askama_parser/src/node.rs75
3 files changed, 90 insertions, 108 deletions
diff --git a/askama_parser/src/expr.rs b/askama_parser/src/expr.rs
index 803681e..7760a98 100644
--- a/askama_parser/src/expr.rs
+++ b/askama_parser/src/expr.rs
@@ -5,18 +5,18 @@ use nom::bytes::complete::{tag, take_till};
use nom::character::complete::char;
use nom::combinator::{cut, map, not, opt, peek, recognize};
use nom::error::ErrorKind;
+use nom::error_position;
use nom::multi::{fold_many0, many0, separated_list0};
use nom::sequence::{pair, preceded, terminated, tuple};
-use nom::{error_position, IResult};
use super::{
char_lit, identifier, not_ws, num_lit, path_or_identifier, str_lit, ws, Level, PathOrIdentifier,
};
-use crate::ErrorContext;
+use crate::ParseResult;
macro_rules! expr_prec_layer {
( $name:ident, $inner:ident, $op:expr ) => {
- fn $name(i: &'a str, level: Level) -> IResult<&'a str, Self, ErrorContext<&'a str>> {
+ fn $name(i: &'a str, level: Level) -> ParseResult<'a, Self> {
let (_, level) = level.nest(i)?;
let (i, left) = Self::$inner(i, level)?;
let (i, right) = many0(pair(
@@ -32,7 +32,7 @@ macro_rules! expr_prec_layer {
}
};
( $name:ident, $inner:ident, $( $op:expr ),+ ) => {
- fn $name(i: &'a str, level: Level) -> IResult<&'a str, Self, ErrorContext<&'a str>> {
+ fn $name(i: &'a str, level: Level) -> ParseResult<'a, Self> {
let (_, level) = level.nest(i)?;
let (i, left) = Self::$inner(i, level)?;
let (i, right) = many0(pair(
@@ -72,10 +72,7 @@ pub enum Expr<'a> {
}
impl<'a> Expr<'a> {
- pub(super) fn arguments(
- i: &'a str,
- level: Level,
- ) -> IResult<&'a str, Vec<Self>, ErrorContext<&'a str>> {
+ pub(super) fn arguments(i: &'a str, level: Level) -> ParseResult<'a, Vec<Self>> {
let (_, level) = level.nest(i)?;
preceded(
ws(char('(')),
@@ -86,7 +83,7 @@ impl<'a> Expr<'a> {
)(i)
}
- pub(super) fn parse(i: &'a str, level: Level) -> IResult<&'a str, Self, ErrorContext<&'a str>> {
+ pub(super) fn parse(i: &'a str, level: Level) -> ParseResult<'a, Self> {
let (_, level) = level.nest(i)?;
let range_right = move |i| {
pair(
@@ -118,13 +115,10 @@ impl<'a> Expr<'a> {
expr_prec_layer!(addsub, muldivmod, "+", "-");
expr_prec_layer!(muldivmod, filtered, "*", "/", "%");
- fn filtered(i: &'a str, level: Level) -> IResult<&'a str, Self, ErrorContext<&'a str>> {
+ fn filtered(i: &'a str, level: Level) -> ParseResult<'a, Self> {
let (_, level) = level.nest(i)?;
#[allow(clippy::type_complexity)]
- fn filter(
- i: &str,
- level: Level,
- ) -> IResult<&str, (&str, Option<Vec<Expr<'_>>>), ErrorContext<&str>> {
+ fn filter(i: &str, level: Level) -> ParseResult<'_, (&str, Option<Vec<Expr<'_>>>)> {
let (i, (_, fname, args)) = tuple((
char('|'),
ws(identifier),
@@ -151,7 +145,7 @@ impl<'a> Expr<'a> {
Ok((i, res))
}
- fn prefix(i: &'a str, level: Level) -> IResult<&'a str, Self, ErrorContext<&'a str>> {
+ fn prefix(i: &'a str, level: Level) -> ParseResult<'a, Self> {
let (_, level) = level.nest(i)?;
let (i, (ops, mut expr)) = pair(many0(ws(alt((tag("!"), tag("-"))))), |i| {
Suffix::parse(i, level)
@@ -162,7 +156,7 @@ impl<'a> Expr<'a> {
Ok((i, expr))
}
- fn single(i: &'a str, level: Level) -> IResult<&'a str, Self, ErrorContext<&'a str>> {
+ fn single(i: &'a str, level: Level) -> ParseResult<'a, Self> {
let (_, level) = level.nest(i)?;
alt((
Self::num,
@@ -174,7 +168,7 @@ impl<'a> Expr<'a> {
))(i)
}
- fn group(i: &'a str, level: Level) -> IResult<&'a str, Self, ErrorContext<&'a str>> {
+ fn group(i: &'a str, level: Level) -> ParseResult<'a, Self> {
let (_, level) = level.nest(i)?;
let (i, expr) = preceded(ws(char('(')), opt(|i| Self::parse(i, level)))(i)?;
let expr = match expr {
@@ -203,7 +197,7 @@ impl<'a> Expr<'a> {
Ok((i, Self::Tuple(exprs)))
}
- fn array(i: &'a str, level: Level) -> IResult<&'a str, Self, ErrorContext<&'a str>> {
+ fn array(i: &'a str, level: Level) -> ParseResult<'a, Self> {
let (_, level) = level.nest(i)?;
preceded(
ws(char('[')),
@@ -217,7 +211,7 @@ impl<'a> Expr<'a> {
)(i)
}
- fn path_var_bool(i: &'a str) -> IResult<&'a str, Self, ErrorContext<&'a str>> {
+ fn path_var_bool(i: &'a str) -> ParseResult<'a, Self> {
map(path_or_identifier, |v| match v {
PathOrIdentifier::Path(v) => Self::Path(v),
PathOrIdentifier::Identifier(v @ "true") => Self::BoolLit(v),
@@ -226,15 +220,15 @@ impl<'a> Expr<'a> {
})(i)
}
- fn str(i: &'a str) -> IResult<&'a str, Self, ErrorContext<&'a str>> {
+ fn str(i: &'a str) -> ParseResult<'a, Self> {
map(str_lit, Self::StrLit)(i)
}
- fn num(i: &'a str) -> IResult<&'a str, Self, ErrorContext<&'a str>> {
+ fn num(i: &'a str) -> ParseResult<'a, Self> {
map(num_lit, Self::NumLit)(i)
}
- fn char(i: &'a str) -> IResult<&'a str, Self, ErrorContext<&'a str>> {
+ fn char(i: &'a str) -> ParseResult<'a, Self> {
map(char_lit, Self::CharLit)(i)
}
}
@@ -249,7 +243,7 @@ enum Suffix<'a> {
}
impl<'a> Suffix<'a> {
- fn parse(i: &'a str, level: Level) -> IResult<&'a str, Expr<'a>, ErrorContext<&'a str>> {
+ fn parse(i: &'a str, level: Level) -> ParseResult<'a, Expr<'a>> {
let (_, level) = level.nest(i)?;
let (mut i, mut expr) = Expr::single(i, level)?;
loop {
@@ -279,8 +273,8 @@ impl<'a> Suffix<'a> {
Ok((i, expr))
}
- fn r#macro(i: &'a str) -> IResult<&'a str, Self, ErrorContext<&'a str>> {
- fn nested_parenthesis(input: &str) -> IResult<&str, (), ErrorContext<&str>> {
+ fn r#macro(i: &'a str) -> ParseResult<'a, Self> {
+ fn nested_parenthesis(input: &str) -> ParseResult<'_, ()> {
let mut nested = 0;
let mut last = 0;
let mut in_str = false;
@@ -337,7 +331,7 @@ impl<'a> Suffix<'a> {
)(i)
}
- fn attr(i: &'a str) -> IResult<&'a str, Self, ErrorContext<&'a str>> {
+ fn attr(i: &'a str) -> ParseResult<'a, Self> {
map(
preceded(
ws(pair(char('.'), not(char('.')))),
@@ -347,7 +341,7 @@ impl<'a> Suffix<'a> {
)(i)
}
- fn index(i: &'a str, level: Level) -> IResult<&'a str, Self, ErrorContext<&'a str>> {
+ fn index(i: &'a str, level: Level) -> ParseResult<'a, Self> {
let (_, level) = level.nest(i)?;
map(
preceded(
@@ -358,12 +352,12 @@ impl<'a> Suffix<'a> {
)(i)
}
- fn call(i: &'a str, level: Level) -> IResult<&'a str, Self, ErrorContext<&'a str>> {
+ fn call(i: &'a str, level: Level) -> ParseResult<'a, Self> {
let (_, level) = level.nest(i)?;
map(move |i| Expr::arguments(i, level), Self::Call)(i)
}
- fn r#try(i: &'a str) -> IResult<&'a str, Self, ErrorContext<&'a str>> {
+ fn r#try(i: &'a str) -> ParseResult<'a, Self> {
map(preceded(take_till(not_ws), char('?')), |_| Self::Try)(i)
}
}
diff --git a/askama_parser/src/lib.rs b/askama_parser/src/lib.rs
index 5abc771..ff26483 100644
--- a/askama_parser/src/lib.rs
+++ b/askama_parser/src/lib.rs
@@ -13,7 +13,7 @@ use nom::combinator::{cut, eof, map, opt, recognize};
use nom::error::{Error, ErrorKind, FromExternalError};
use nom::multi::many1;
use nom::sequence::{delimited, pair, preceded, terminated, tuple};
-use nom::{error_position, AsChar, IResult, InputTakeAtPosition};
+use nom::{error_position, AsChar, InputTakeAtPosition};
pub mod expr;
pub use expr::Expr;
@@ -129,32 +129,34 @@ impl fmt::Display for ParseError {
}
}
+pub(crate) type ParseResult<'a, T = &'a str> = Result<(&'a str, T), nom::Err<ErrorContext<'a>>>;
+
/// This type is used to handle `nom` errors and in particular to add custom error messages.
/// It used to generate `ParserError`.
///
/// It cannot be used to replace `ParseError` because it expects a generic, which would make
/// `askama`'s users experience less good (since this generic is only needed for `nom`).
#[derive(Debug)]
-pub(crate) struct ErrorContext<I> {
- pub(crate) input: I,
+pub(crate) struct ErrorContext<'a> {
+ pub(crate) input: &'a str,
pub(crate) message: Option<Cow<'static, str>>,
}
-impl<I> nom::error::ParseError<I> for ErrorContext<I> {
- fn from_error_kind(input: I, _code: ErrorKind) -> Self {
+impl<'a> nom::error::ParseError<&'a str> for ErrorContext<'a> {
+ fn from_error_kind(input: &'a str, _code: ErrorKind) -> Self {
Self {
input,
message: None,
}
}
- fn append(_: I, _: ErrorKind, other: Self) -> Self {
+ fn append(_: &'a str, _: ErrorKind, other: Self) -> Self {
other
}
}
-impl<I, E: std::fmt::Display> FromExternalError<I, E> for ErrorContext<I> {
- fn from_external_error(input: I, _kind: ErrorKind, e: E) -> Self {
+impl<'a, E: std::fmt::Display> FromExternalError<&'a str, E> for ErrorContext<'a> {
+ fn from_external_error(input: &'a str, _kind: ErrorKind, e: E) -> Self {
Self {
input,
message: Some(Cow::Owned(e.to_string())),
@@ -162,8 +164,8 @@ impl<I, E: std::fmt::Display> FromExternalError<I, E> for ErrorContext<I> {
}
}
-impl<I> ErrorContext<I> {
- pub(crate) fn from_err(error: nom::Err<Error<I>>) -> nom::Err<Self> {
+impl<'a> ErrorContext<'a> {
+ pub(crate) fn from_err(error: nom::Err<Error<&'a str>>) -> nom::Err<Self> {
match error {
nom::Err::Incomplete(i) => nom::Err::Incomplete(i),
nom::Err::Failure(Error { input, .. }) => nom::Err::Failure(Self {
@@ -187,16 +189,16 @@ fn not_ws(c: char) -> bool {
}
fn ws<'a, O>(
- inner: impl FnMut(&'a str) -> IResult<&'a str, O, ErrorContext<&'a str>>,
-) -> impl FnMut(&'a str) -> IResult<&'a str, O, ErrorContext<&'a str>> {
+ inner: impl FnMut(&'a str) -> ParseResult<'a, O>,
+) -> impl FnMut(&'a str) -> ParseResult<'a, O> {
delimited(take_till(not_ws), inner, take_till(not_ws))
}
/// Skips input until `end` was found, but does not consume it.
/// Returns tuple that would be returned when parsing `end`.
fn skip_till<'a, O>(
- end: impl FnMut(&'a str) -> IResult<&'a str, O, ErrorContext<&'a str>>,
-) -> impl FnMut(&'a str) -> IResult<&'a str, (&'a str, O), ErrorContext<&'a str>> {
+ end: impl FnMut(&'a str) -> ParseResult<'a, O>,
+) -> impl FnMut(&'a str) -> ParseResult<'a, (&'a str, O)> {
enum Next<O> {
IsEnd(O),
NotEnd(char),
@@ -214,10 +216,8 @@ fn skip_till<'a, O>(
}
}
-fn keyword<'a>(
- k: &'a str,
-) -> impl FnMut(&'a str) -> IResult<&'a str, &'a str, ErrorContext<&'a str>> {
- move |i: &'a str| -> IResult<&'a str, &'a str, ErrorContext<&'a str>> {
+fn keyword<'a>(k: &'a str) -> impl FnMut(&'a str) -> ParseResult<'_> {
+ move |i: &'a str| -> ParseResult<'a> {
let (j, v) = identifier(i)?;
if k == v {
Ok((j, v))
@@ -227,15 +227,15 @@ fn keyword<'a>(
}
}
-fn identifier(input: &str) -> IResult<&str, &str, ErrorContext<&str>> {
- fn start(s: &str) -> IResult<&str, &str, ErrorContext<&str>> {
+fn identifier(input: &str) -> ParseResult<'_> {
+ fn start(s: &str) -> ParseResult<'_> {
s.split_at_position1_complete(
|c| !(c.is_alpha() || c == '_' || c >= '\u{0080}'),
nom::error::ErrorKind::Alpha,
)
}
- fn tail(s: &str) -> IResult<&str, &str, ErrorContext<&str>> {
+ fn tail(s: &str) -> ParseResult<'_> {
s.split_at_position1_complete(
|c| !(c.is_alphanum() || c == '_' || c >= '\u{0080}'),
nom::error::ErrorKind::Alpha,
@@ -245,11 +245,11 @@ fn identifier(input: &str) -> IResult<&str, &str, ErrorContext<&str>> {
recognize(pair(start, opt(tail)))(input)
}
-fn bool_lit(i: &str) -> IResult<&str, &str, ErrorContext<&str>> {
+fn bool_lit(i: &str) -> ParseResult<'_> {
alt((keyword("false"), keyword("true")))(i)
}
-fn num_lit(i: &str) -> IResult<&str, &str, ErrorContext<&str>> {
+fn num_lit(i: &str) -> ParseResult<'_> {
recognize(tuple((
opt(char('-')),
digit1,
@@ -257,7 +257,7 @@ fn num_lit(i: &str) -> IResult<&str, &str, ErrorContext<&str>> {
)))(i)
}
-fn str_lit(i: &str) -> IResult<&str, &str, ErrorContext<&str>> {
+fn str_lit(i: &str) -> ParseResult<'_> {
let (i, s) = delimited(
char('"'),
opt(escaped(is_not("\\\""), '\\', anychar)),
@@ -266,7 +266,7 @@ fn str_lit(i: &str) -> IResult<&str, &str, ErrorContext<&str>> {
Ok((i, s.unwrap_or_default()))
}
-fn char_lit(i: &str) -> IResult<&str, &str, ErrorContext<&str>> {
+fn char_lit(i: &str) -> ParseResult<'_> {
let (i, s) = delimited(
char('\''),
opt(escaped(is_not("\\\'"), '\\', anychar)),
@@ -280,7 +280,7 @@ enum PathOrIdentifier<'a> {
Identifier(&'a str),
}
-fn path_or_identifier(i: &str) -> IResult<&str, PathOrIdentifier<'_>, ErrorContext<&str>> {
+fn path_or_identifier(i: &str) -> ParseResult<'_, PathOrIdentifier<'_>> {
let root = ws(opt(tag("::")));
let tail = opt(many1(preceded(ws(tag("::")), identifier)));
@@ -326,7 +326,7 @@ impl<'a> State<'a> {
}
}
- fn nest<'b>(&self, i: &'b str) -> IResult<&'b str, (), ErrorContext<&'b str>> {
+ fn nest<'b>(&self, i: &'b str) -> ParseResult<'b, ()> {
let (_, level) = self.level.get().nest(i)?;
self.level.set(level);
Ok((i, ()))
@@ -336,30 +336,27 @@ impl<'a> State<'a> {
self.level.set(self.level.get().leave());
}
- fn tag_block_start<'i>(&self, i: &'i str) -> IResult<&'i str, &'i str, ErrorContext<&'i str>> {
+ fn tag_block_start<'i>(&self, i: &'i str) -> ParseResult<'i> {
tag(self.syntax.block_start)(i)
}
- fn tag_block_end<'i>(&self, i: &'i str) -> IResult<&'i str, &'i str, ErrorContext<&'i str>> {
+ fn tag_block_end<'i>(&self, i: &'i str) -> ParseResult<'i> {
tag(self.syntax.block_end)(i)
}
- fn tag_comment_start<'i>(
- &self,
- i: &'i str,
- ) -> IResult<&'i str, &'i str, ErrorContext<&'i str>> {
+ fn tag_comment_start<'i>(&self, i: &'i str) -> ParseResult<'i> {
tag(self.syntax.comment_start)(i)
}
- fn tag_comment_end<'i>(&self, i: &'i str) -> IResult<&'i str, &'i str, ErrorContext<&'i str>> {
+ fn tag_comment_end<'i>(&self, i: &'i str) -> ParseResult<'i> {
tag(self.syntax.comment_end)(i)
}
- fn tag_expr_start<'i>(&self, i: &'i str) -> IResult<&'i str, &'i str, ErrorContext<&'i str>> {
+ fn tag_expr_start<'i>(&self, i: &'i str) -> ParseResult<'i> {
tag(self.syntax.expr_start)(i)
}
- fn tag_expr_end<'i>(&self, i: &'i str) -> IResult<&'i str, &'i str, ErrorContext<&'i str>> {
+ fn tag_expr_end<'i>(&self, i: &'i str) -> ParseResult<'i> {
tag(self.syntax.expr_end)(i)
}
@@ -403,7 +400,7 @@ impl Default for Syntax<'static> {
pub(crate) struct Level(u8);
impl Level {
- fn nest(self, i: &str) -> IResult<&str, Level, ErrorContext<&str>> {
+ fn nest(self, i: &str) -> ParseResult<'_, Level> {
if self.0 >= Self::MAX_DEPTH {
return Err(ErrorContext::from_err(nom::Err::Failure(error_position!(
i,
diff --git a/askama_parser/src/node.rs b/askama_parser/src/node.rs
index dc05f48..69703e6 100644
--- a/askama_parser/src/node.rs
+++ b/askama_parser/src/node.rs
@@ -8,11 +8,11 @@ use nom::combinator::{
complete, consumed, cut, eof, map, map_res, not, opt, peek, recognize, value,
};
use nom::error::{Error, ErrorKind};
+use nom::error_position;
use nom::multi::{fold_many0, many0, many1, separated_list0, separated_list1};
use nom::sequence::{delimited, pair, preceded, terminated, tuple};
-use nom::{error_position, IResult};
-use crate::ErrorContext;
+use crate::{ErrorContext, ParseResult};
use super::{
bool_lit, char_lit, identifier, is_ws, keyword, num_lit, path_or_identifier, skip_till,
@@ -40,10 +40,7 @@ pub enum Node<'a> {
}
impl<'a> Node<'a> {
- pub(super) fn many(
- i: &'a str,
- s: &State<'_>,
- ) -> IResult<&'a str, Vec<Self>, ErrorContext<&'a str>> {
+ pub(super) fn many(i: &'a str, s: &State<'_>) -> ParseResult<'a, Vec<Self>> {
complete(many0(alt((
map(|i| Lit::parse(i, s), Self::Lit),
map(|i| Comment::parse(i, s), Self::Comment),
@@ -52,7 +49,7 @@ impl<'a> Node<'a> {
))))(i)
}
- fn parse(i: &'a str, s: &State<'_>) -> IResult<&'a str, Self, ErrorContext<&'a str>> {
+ fn parse(i: &'a str, s: &State<'_>) -> ParseResult<'a, Self> {
let mut p = delimited(
|i| s.tag_block_start(i),
alt((
@@ -80,7 +77,7 @@ impl<'a> Node<'a> {
result
}
- fn r#break(i: &'a str, s: &State<'_>) -> IResult<&'a str, Self, ErrorContext<&'a str>> {
+ fn r#break(i: &'a str, s: &State<'_>) -> ParseResult<'a, Self> {
let mut p = tuple((
opt(Whitespace::parse),
ws(keyword("break")),
@@ -93,7 +90,7 @@ impl<'a> Node<'a> {
Ok((j, Self::Break(Ws(pws, nws))))
}
- fn r#continue(i: &'a str, s: &State<'_>) -> IResult<&'a str, Self, ErrorContext<&'a str>> {
+ fn r#continue(i: &'a str, s: &State<'_>) -> ParseResult<'a, Self> {
let mut p = tuple((
opt(Whitespace::parse),
ws(keyword("continue")),
@@ -106,7 +103,7 @@ impl<'a> Node<'a> {
Ok((j, Self::Continue(Ws(pws, nws))))
}
- fn expr(i: &'a str, s: &State<'_>) -> IResult<&'a str, Self, ErrorContext<&'a str>> {
+ fn expr(i: &'a str, s: &State<'_>) -> ParseResult<'a, Self> {
let mut p = tuple((
|i| s.tag_expr_start(i),
cut(tuple((
@@ -134,7 +131,7 @@ pub enum Target<'a> {
}
impl<'a> Target<'a> {
- pub(super) fn parse(i: &'a str) -> IResult<&'a str, Self, ErrorContext<&'a str>> {
+ pub(super) fn parse(i: &'a str) -> ParseResult<'a, Self> {
let mut opt_opening_paren = map(opt(ws(char('('))), |o| o.is_some());
let mut opt_closing_paren = map(opt(ws(char(')'))), |o| o.is_some());
let mut opt_opening_brace = map(opt(ws(char('{'))), |o| o.is_some());
@@ -217,7 +214,7 @@ impl<'a> Target<'a> {
map(identifier, Self::Name)(i)
}
- fn lit(i: &'a str) -> IResult<&'a str, Self, ErrorContext<&'a str>> {
+ fn lit(i: &'a str) -> ParseResult<'a, Self> {
alt((
map(str_lit, Self::StrLit),
map(char_lit, Self::CharLit),
@@ -226,7 +223,7 @@ impl<'a> Target<'a> {
))(i)
}
- fn named(i: &'a str) -> IResult<&str, (&str, Self), ErrorContext<&'a str>> {
+ fn named(i: &'a str) -> ParseResult<'a, (&str, Self)> {
let (i, (src, target)) = pair(identifier, opt(preceded(ws(char(':')), Self::parse)))(i)?;
Ok((i, (src, target.unwrap_or(Self::Name(src)))))
}
@@ -240,7 +237,7 @@ pub struct When<'a> {
}
impl<'a> When<'a> {
- fn r#match(i: &'a str, s: &State<'_>) -> IResult<&'a str, Self, ErrorContext<&'a str>> {
+ fn r#match(i: &'a str, s: &State<'_>) -> ParseResult<'a, Self> {
let mut p = tuple((
|i| s.tag_block_start(i),
opt(Whitespace::parse),
@@ -263,7 +260,7 @@ impl<'a> When<'a> {
}
#[allow(clippy::self_named_constructors)]
- fn when(i: &'a str, s: &State<'_>) -> IResult<&'a str, Self, ErrorContext<&'a str>> {
+ fn when(i: &'a str, s: &State<'_>) -> ParseResult<'a, Self> {
let mut p = tuple((
|i| s.tag_block_start(i),
opt(Whitespace::parse),
@@ -295,7 +292,7 @@ pub struct Cond<'a> {
}
impl<'a> Cond<'a> {
- fn parse(i: &'a str, s: &State<'_>) -> IResult<&'a str, Self, ErrorContext<&'a str>> {
+ fn parse(i: &'a str, s: &State<'_>) -> ParseResult<'a, Self> {
let mut p = tuple((
|i| s.tag_block_start(i),
opt(Whitespace::parse),
@@ -334,7 +331,7 @@ pub struct CondTest<'a> {
}
impl<'a> CondTest<'a> {
- fn parse(i: &'a str, s: &State<'_>) -> IResult<&'a str, Self, ErrorContext<&'a str>> {
+ fn parse(i: &'a str, s: &State<'_>) -> ParseResult<'a, Self> {
let mut p = preceded(
ws(keyword("if")),
cut(tuple((
@@ -359,7 +356,7 @@ pub enum Whitespace {
}
impl Whitespace {
- fn parse(i: &str) -> IResult<&str, Self, ErrorContext<&str>> {
+ fn parse(i: &str) -> ParseResult<'_, Self> {
alt((
value(Self::Preserve, char('+')),
value(Self::Suppress, char('-')),
@@ -381,11 +378,8 @@ pub struct Loop<'a> {
}
impl<'a> Loop<'a> {
- fn parse(i: &'a str, s: &State<'_>) -> IResult<&'a str, Self, ErrorContext<&'a str>> {
- fn content<'a>(
- i: &'a str,
- s: &State<'_>,
- ) -> IResult<&'a str, Vec<Node<'a>>, ErrorContext<&'a str>> {
+ fn parse(i: &'a str, s: &State<'_>) -> ParseResult<'a, Self> {
+ fn content<'a>(i: &'a str, s: &State<'_>) -> ParseResult<'a, Vec<Node<'a>>> {
s.enter_loop();
let result = Node::many(i, s);
s.leave_loop();
@@ -465,8 +459,8 @@ pub struct Macro<'a> {
}
impl<'a> Macro<'a> {
- fn parse(i: &'a str, s: &State<'_>) -> IResult<&'a str, Self, ErrorContext<&'a str>> {
- fn parameters(i: &str) -> IResult<&str, Vec<&str>, ErrorContext<&str>> {
+ fn parse(i: &'a str, s: &State<'_>) -> ParseResult<'a, Self> {
+ fn parameters(i: &str) -> ParseResult<'_, Vec<&str>> {
delimited(
ws(char('(')),
separated_list0(char(','), ws(identifier)),
@@ -532,7 +526,7 @@ pub struct Import<'a> {
}
impl<'a> Import<'a> {
- fn parse(i: &'a str) -> IResult<&'a str, Self, ErrorContext<&'a str>> {
+ fn parse(i: &'a str) -> ParseResult<'a, Self> {
let mut p = tuple((
opt(Whitespace::parse),
ws(keyword("import")),
@@ -563,7 +557,7 @@ pub struct Call<'a> {
}
impl<'a> Call<'a> {
- fn parse(i: &'a str, s: &State<'_>) -> IResult<&'a str, Self, ErrorContext<&'a str>> {
+ fn parse(i: &'a str, s: &State<'_>) -> ParseResult<'a, Self> {
let mut p = tuple((
opt(Whitespace::parse),
ws(keyword("call")),
@@ -598,7 +592,7 @@ pub struct Match<'a> {
}
impl<'a> Match<'a> {
- fn parse(i: &'a str, s: &State<'_>) -> IResult<&'a str, Self, ErrorContext<&'a str>> {
+ fn parse(i: &'a str, s: &State<'_>) -> ParseResult<'a, Self> {
let mut p = tuple((
opt(Whitespace::parse),
ws(keyword("match")),
@@ -649,7 +643,7 @@ pub struct BlockDef<'a> {
}
impl<'a> BlockDef<'a> {
- fn parse(i: &'a str, s: &State<'_>) -> IResult<&'a str, Self, ErrorContext<&'a str>> {
+ fn parse(i: &'a str, s: &State<'_>) -> ParseResult<'a, Self> {
let mut start = tuple((
opt(Whitespace::parse),
ws(keyword("block")),
@@ -694,7 +688,7 @@ fn check_end_name<'a>(
name: &'a str,
end_name: &'a str,
kind: &str,
-) -> IResult<&'a str, &'a str, ErrorContext<&'a str>> {
+) -> ParseResult<'a> {
if name == end_name {
return Ok((after, end_name));
}
@@ -717,7 +711,7 @@ pub struct Lit<'a> {
}
impl<'a> Lit<'a> {
- fn parse(i: &'a str, s: &State<'_>) -> IResult<&'a str, Self, ErrorContext<&'a str>> {
+ fn parse(i: &'a str, s: &State<'_>) -> ParseResult<'a, Self> {
let p_start = alt((
tag(s.syntax.block_start),
tag(s.syntax.comment_start),
@@ -757,7 +751,7 @@ pub struct Raw<'a> {
}
impl<'a> Raw<'a> {
- fn parse(i: &'a str, s: &State<'_>) -> IResult<&'a str, Self, ErrorContext<&'a str>> {
+ fn parse(i: &'a str, s: &State<'_>) -> ParseResult<'a, Self> {
let endraw = tuple((
|i| s.tag_block_start(i),
opt(Whitespace::parse),
@@ -792,7 +786,7 @@ pub struct Let<'a> {
}
impl<'a> Let<'a> {
- fn parse(i: &'a str, s: &State<'_>) -> IResult<&'a str, Self, ErrorContext<&'a str>> {
+ fn parse(i: &'a str, s: &State<'_>) -> ParseResult<'a, Self> {
let mut p = tuple((
opt(Whitespace::parse),
ws(alt((keyword("let"), keyword("set")))),
@@ -825,7 +819,7 @@ pub struct If<'a> {
}
impl<'a> If<'a> {
- fn parse(i: &'a str, s: &State<'_>) -> IResult<&'a str, Self, ErrorContext<&'a str>> {
+ fn parse(i: &'a str, s: &State<'_>) -> ParseResult<'a, Self> {
let mut p = tuple((
opt(Whitespace::parse),
|i| CondTest::parse(i, s),
@@ -870,7 +864,7 @@ pub struct Include<'a> {
}
impl<'a> Include<'a> {
- fn parse(i: &'a str) -> IResult<&'a str, Self, ErrorContext<&'a str>> {
+ fn parse(i: &'a str) -> ParseResult<'a, Self> {
let mut p = tuple((
opt(Whitespace::parse),
ws(keyword("include")),
@@ -893,7 +887,7 @@ pub struct Extends<'a> {
}
impl<'a> Extends<'a> {
- fn parse(i: &'a str) -> IResult<&'a str, Self, ErrorContext<&'a str>> {
+ fn parse(i: &'a str) -> ParseResult<'a, Self> {
let (i, path) = preceded(ws(keyword("extends")), cut(ws(str_lit)))(i)?;
Ok((i, Self { path }))
}
@@ -906,15 +900,12 @@ pub struct Comment<'a> {
}
impl<'a> Comment<'a> {
- fn parse(i: &'a str, s: &State<'_>) -> IResult<&'a str, Self, ErrorContext<&'a str>> {
- fn body<'a>(
- mut i: &'a str,
- s: &State<'_>,
- ) -> IResult<&'a str, &'a str, ErrorContext<&'a str>> {
+ fn parse(i: &'a str, s: &State<'_>) -> ParseResult<'a, Self> {
+ fn body<'a>(mut i: &'a str, s: &State<'_>) -> ParseResult<'a> {
let mut level = 0;
loop {
let (end, tail) = take_until(s.syntax.comment_end)(i)?;
- match take_until::<_, _, ErrorContext<_>>(s.syntax.comment_start)(i) {
+ match take_until::<_, _, ErrorContext<'_>>(s.syntax.comment_start)(i) {
Ok((start, _)) if start.as_ptr() < end.as_ptr() => {
level += 1;
i = &start[2..];
generated by cgit (git 2.34.1) at 2024-11-25 04:17:57 +0000