Relative IRIs must not have the form of a keyword

Author: mielvds

lib/pyld/iri_resolver.py

@@ -260,6 +260,10 @@ def unresolve(absolute_iri: str, base_iri: str = ""):
     # prepend remaining segments
     rval += '/'.join(iri_segments)
 
+    # relative IRIs must not have the form of a keyword
+    if rval and rval[0] == '@':
+        rval = './' + rval
+
     # build relative IRI using urlunparse with empty scheme/netloc
     return urlunparse(('', '', rval, '', rel.query or '', rel.fragment or '')) or './'
 

tests/test_iri_resolver.py

@@ -316,6 +316,9 @@ def test_base_without_path_slash(self):
     def test_base_with_path_slash(self):
         assert unresolve('http://base.org/abc/', 'http://base.org') == 'abc/'
 
+    def test_absolute_iri_with_keyword(self):
+        assert unresolve('http://base.org/@abc', 'http://base.org/') == './@abc'
+
 # ---------- Tests for remove_dot_segments() ----------
 class TestRemoveDotSegments:
     def test_no_slash(self):