fix typo in StringSplitterRule

- Corrected 'delimiter' typo across test and implementation files.
- Updated changelog to reflect this fix.

CHANGELOG.md

@@ -5,6 +5,7 @@
 
 * `CriticalInputError` is raised when the input preprocessor values can't be set, this was so far only true
   for the hmac preprocessor, but is now also applied for all other preprocessors.
+* fix `delimiter` typo in `StringSplitterRule` configuration
 
 ### Features
 ### Improvements

logprep/processor/string_splitter/processor.py

@@ -43,5 +43,5 @@ def _apply_rules(self, event: dict, rule: StringSplitterRule):
         self._handle_missing_fields(event, rule, rule.source_fields, [source_field_content])
         if not isinstance(source_field_content, str):
             raise ProcessingWarning(f"source_field '{source_field}' is not a string", rule, event)
-        result = source_field_content.split(rule.delimeter)
+        result = source_field_content.split(rule.delimiter)
         self._write_target_field(event, rule, result)

logprep/processor/string_splitter/rule.py

@@ -61,12 +61,12 @@ class Config(FieldManagerRule.Config):
                 validators.max_len(1),
             ],
         )
-        delimeter: str = field(validator=validators.instance_of(str), default=" ")
-        """The delimeter for splitting. Defaults to whitespace"""
+        delimiter: str = field(validator=validators.instance_of(str), default=" ")
+        """The delimiter for splitting. Defaults to whitespace"""
         mapping: dict = field(default="", init=False, repr=False, eq=False)
         ignore_missing_fields: bool = field(default=False, init=False, repr=False, eq=False)
 
     @property
-    def delimeter(self):
-        """returns the configured delimeter"""
-        return self._config.delimeter
+    def delimiter(self):
+        """returns the configured delimiter"""
+        return self._config.delimiter

tests/unit/processor/string_splitter/test_string_splitter.py

@@ -22,7 +22,7 @@
             "string_splitter": {
                 "source_fields": ["message"],
                 "target_field": "result",
-                "delimeter": ", ",
+                "delimiter": ", ",
             },
         },
         {"message": "this, is, the, message"},