참고소스 수정본

참고/guardrails-main/guardrails/utils/regex_utils.py

@@ -0,0 +1,23 @@
+import re
+from string import Template
+from typing import List
+
+
+ESCAPED = "(?![^{}]*})"
+
+# This one doesn't actually work, but we're keeping it the same for consistency
+ESCAPED_OR_QUOTED = "(?![^{}]*})|(?<!')${separator}(?=[^']*'$)"
+
+
+def split_on(
+    value: str, separator: str, *, exceptions: str = ESCAPED, filter_nones: bool = True
+) -> List[str]:
+    split_pattern = Template("${separator}${exceptions}").safe_substitute(
+        separator=separator, exceptions=exceptions
+    )
+    pattern = re.compile(rf"{split_pattern}")
+    tokens = re.split(pattern, value)
+    trimmed = list(map(lambda t: t.strip(), tokens))
+    if not filter_nones:
+        return trimmed
+    return list(filter(None, trimmed))