Fixed material parser to be able to parse plib=84p.

montepy/input_parser/material_parser.py

@@ -11,6 +11,7 @@ class MaterialParser(DataParser):
     @_(
         "introduction isotopes",
         "introduction isotopes parameters",
+        "introduction isotopes mat_parameters",
     )
     def material(self, p):
         ret = {}
@@ -47,3 +48,45 @@ def batch_gen():
         for group in batch_gen():
             new_list.append(("foo", *group))
         return new_list
+
+    @_(
+        "mat_parameter",
+        "parameter",
+        "mat_parameters mat_parameter",
+        "mat_parameters parameter",
+    )
+    def mat_parameters(self, p):
+        """
+        A list of the parameters (key, value pairs) for this input.
+
+        :returns: all parameters
+        :rtype: ParametersNode
+        """
+        if len(p) == 1:
+            params = syntax_node.ParametersNode()
+            param = p[0]
+        else:
+            params = p[0]
+            param = p[1]
+        params.append(param)
+        return params
+
+    @_(
+        "classifier param_seperator library",
+    )
+    def mat_parameter(self, p):
+        """
+        A singular Key-value pair.
+
+        :returns: the parameter.
+        :rtype: SyntaxNode
+        """
+        return syntax_node.SyntaxNode(
+            p.classifier.prefix.value,
+            {"classifier": p.classifier, "seperator": p.param_seperator, "data": p[2]},
+        )
+
+    @_("NUMBER_WORD")
+    @_("NUMBER_WORD padding")
+    def library(self, p):
+        return self._flush_phrase(p, str)