diff options
Diffstat (limited to 'askama_shared/src')
| -rw-r--r-- | askama_shared/src/parser.rs | 29 |
1 files changed, 25 insertions, 4 deletions
diff --git a/askama_shared/src/parser.rs b/askama_shared/src/parser.rs index 7224d02..8210ed0 100644 --- a/askama_shared/src/parser.rs +++ b/askama_shared/src/parser.rs @@ -1,7 +1,7 @@ use nom::branch::alt; use nom::bytes::complete::{escaped, is_not, tag, take_until}; use nom::character::complete::{anychar, char, digit1}; -use nom::combinator::{complete, map, opt}; +use nom::combinator::{complete, map, opt, value}; use nom::error::ParseError; use nom::multi::{many0, many1, separated_list0, separated_list1}; use nom::sequence::{delimited, pair, tuple}; @@ -312,10 +312,12 @@ fn expr_var_call(i: &[u8]) -> IResult<&[u8], Expr> { } fn path(i: &[u8]) -> IResult<&[u8], Vec<&str>> { + let root = opt(value("", ws(tag("::")))); let tail = separated_list1(ws(tag("::")), identifier); - let (i, (start, _, rest)) = tuple((identifier, ws(tag("::")), tail))(i)?; - - let mut path = vec![start]; + let (i, (root, start, _, rest)) = tuple((root, identifier, ws(tag("::")), tail))(i)?; + let mut path = Vec::new(); + path.extend(root); + path.push(start); path.extend(rest); Ok((i, path)) } @@ -1137,6 +1139,25 @@ mod tests { } #[test] + fn test_parse_root_path() { + let syntax = Syntax::default(); + assert_eq!( + super::parse("{{ std::string::String::new() }}", &syntax).unwrap(), + vec![Node::Expr( + WS(false, false), + Expr::PathCall(vec!["std", "string", "String", "new"], vec![]), + )], + ); + assert_eq!( + super::parse("{{ ::std::string::String::new() }}", &syntax).unwrap(), + vec![Node::Expr( + WS(false, false), + Expr::PathCall(vec!["", "std", "string", "String", "new"], vec![]), + )], + ); + } + + #[test] fn change_delimiters_parse_filter() { let syntax = Syntax { expr_start: "{~", |