From fe614563c65e668507aa2381db1f90a3fd0e91d7 Mon Sep 17 00:00:00 2001
From: Mark Jordan <mjordan@sfu.ca>
Date: Mon, 26 Aug 2024 12:11:58 -0700
Subject: [PATCH] Resolves #819.

---
 tests/unit_tests.py | 1 +
 workbench_utils.py  | 4 ++++
 2 files changed, 5 insertions(+)

diff --git a/tests/unit_tests.py b/tests/unit_tests.py
index cbecbb5..dddf77e 100644
--- a/tests/unit_tests.py
+++ b/tests/unit_tests.py
@@ -486,6 +486,7 @@ def test_validate_good_edtf_values(self):
             "2001-24",
             "2001-31",
             "193X/196X",
+            "195X-01~",
             "198X?",
             "19XX?",
             "2XXX?",
diff --git a/workbench_utils.py b/workbench_utils.py
index dc5cc77..faedff0 100644
--- a/workbench_utils.py
+++ b/workbench_utils.py
@@ -7578,6 +7578,10 @@ def validate_edtf_fields(config, field_definitions, csv_data):
 
 def validate_edtf_date(date):
     date = date.strip()
+    # 195X-01~
+    # nnnX-nn~
+    if re.match(r"^[1-2]\d\dX\-\d\d\~", date):
+        return True
     # nnnX?
     if re.match(r"^[1-2]\d\dX\?", date):
         return True