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-rw-r--r--askama_parser/src/lib.rs15
1 files changed, 15 insertions, 0 deletions
diff --git a/askama_parser/src/lib.rs b/askama_parser/src/lib.rs
index de88a20..3428735 100644
--- a/askama_parser/src/lib.rs
+++ b/askama_parser/src/lib.rs
@@ -255,6 +255,7 @@ fn path_or_identifier(i: &str) -> IResult<&str, PathOrIdentifier<'_>> {
struct State<'a> {
syntax: &'a Syntax<'a>,
loop_depth: Cell<usize>,
+ level: Cell<Level>,
}
impl<'a> State<'a> {
@@ -262,9 +263,19 @@ impl<'a> State<'a> {
State {
syntax,
loop_depth: Cell::new(0),
+ level: Cell::new(Level::default()),
}
}
+ fn nest<'b>(&self, i: &'b str) -> Result<(), nom::Err<nom::error::Error<&'b str>>> {
+ self.level.set(self.level.get().nest(i)?);
+ Ok(())
+ }
+
+ fn leave(&self) {
+ self.level.set(self.level.get().leave());
+ }
+
fn tag_block_start<'i>(&self, i: &'i str) -> IResult<&'i str, &'i str> {
tag(self.syntax.block_start)(i)
}
@@ -337,5 +348,9 @@ impl Level {
Ok(Level(self.0 + 1))
}
+ fn leave(&self) -> Self {
+ Level(self.0 - 1)
+ }
+
const MAX_DEPTH: u8 = 64;
}