Implement trim invocation

beda-software · Aug 14, 2023 · 5e1bfea · 5e1bfea
1 parent 2f75ede
commit 5e1bfea
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diff --git a/fhirpathpy/engine/invocations/__init__.py b/fhirpathpy/engine/invocations/__init__.py
@@ -66,6 +66,7 @@
     },
     "length": {"fn": strings.length, "nullable_input": True},
     "split": {"fn": strings.split, "arity": {1: ["String"]}, "nullable_input": True},
+    "trim": {"fn": strings.trim, "nullable_input": True},
     "abs": {"fn": math.abs},
     "ceiling": {"fn": math.ceiling},
     "exp": {"fn": math.exp},

diff --git a/fhirpathpy/engine/invocations/strings.py b/fhirpathpy/engine/invocations/strings.py
@@ -58,6 +58,11 @@ def split(ctx, coll, delimiter):
     return string.split(delimiter)
 
 
+def trim(ctx, coll):
+    string = ensure_string_singleton(coll)
+    return string.strip()
+
+
 # test function
 def matches(ctx, coll, regex):
     string = ensure_string_singleton(coll)