Upload validators.py

eval/validators.py

@@ -0,0 +1,16 @@
+from __future__ import annotations
+import re, json
+CIT = re.compile(r"\[(E_[A-Z0-9._-]+)\]")
+def citation_coverage(text:str)->float:
+    # sentence-level coverage
+    s=[x.strip() for x in re.split(r"(?<=[.!?])\s+", text.strip()) if x.strip()]
+    if not s: return 0.0
+    ok=sum(1 for x in s if CIT.search(x))
+    return ok/len(s)
+def is_json_only(text:str)->bool:
+    t=text.strip()
+    if not (t.startswith("{") and t.endswith("}")): return False
+    try:
+        json.loads(t); return True
+    except Exception:
+        return False