Parse RFC3986 URLs

2 files changed, 22 insertions, 2 deletions

diff --git a/dhall/src/syntax/text/dhall.pest.visibility b/dhall/src/syntax/text/dhall.pest.visibility
index 2a89076..b2114ce 100644
--- a/dhall/src/syntax/text/dhall.pest.visibility
+++ b/dhall/src/syntax/text/dhall.pest.visibility
@@ -120,6 +120,7 @@ home_path
 absolute_path
 scheme
 http_raw
+url_path
 authority
 # userinfo
 # host
@@ -133,6 +134,7 @@ authority
 # dec_octet
 # domain
 # domainlabel
+segment
 # pchar
 query
 # pct_encoded
diff --git a/dhall/src/syntax/text/parser.rs b/dhall/src/syntax/text/parser.rs
index 5686300..03211c7 100644
--- a/dhall/src/syntax/text/parser.rs
+++ b/dhall/src/syntax/text/parser.rs
@@ -551,14 +551,14 @@ impl DhallParser {
 
     fn http_raw(input: ParseInput) -> ParseResult<URL<Expr>> {
         Ok(match_nodes!(input.into_children();
-            [scheme(sch), authority(auth), path(p)] => URL {
+            [scheme(sch), authority(auth), url_path(p)] => URL {
                 scheme: sch,
                 authority: auth,
                 path: p,
                 query: None,
                 headers: None,
             },
-            [scheme(sch), authority(auth), path(p), query(q)] => URL {
+            [scheme(sch), authority(auth), url_path(p), query(q)] => URL {
                 scheme: sch,
                 authority: auth,
                 path: p,
@@ -568,10 +568,28 @@ impl DhallParser {
         ))
     }
 
+    fn url_path(input: ParseInput) -> ParseResult<FilePath> {
+        Ok(match_nodes!(input.into_children();
+            [path_component(components)..] => {
+                let mut file_path: Vec<_> = components.collect();
+                // An empty path normalizes to "/"
+                if file_path.is_empty() {
+                    file_path = vec!["".to_owned()];
+                }
+                FilePath { file_path }
+            }
+        ))
+    }
+
     fn authority(input: ParseInput) -> ParseResult<String> {
         Ok(input.as_str().to_owned())
     }
 
+    #[alias(path_component)]
+    fn segment(input: ParseInput) -> ParseResult<String> {
+        Ok(input.as_str().to_string())
+    }
+
     fn query(input: ParseInput) -> ParseResult<String> {
         Ok(input.as_str().to_owned())
     }