diff --git a/eval.py b/eval.py
new file mode 100644
index 0000000..e69de29
diff --git a/pie_extended/eval.py b/pie_extended/eval.py
new file mode 100644
index 0000000..183d75f
--- /dev/null
+++ b/pie_extended/eval.py
@@ -0,0 +1,135 @@
+from pie_extended.cli.sub import get_tagger
+from pie_extended.tagger import ExtensibleTagger
+from pie_extended.pipeline.tokenizers.memorizing import MemorizingTokenizer
+from pie_extended.models.lasla.imports import get_iterator_and_processor
+from typing import List, Dict, Optional
+import re
+
+
+def read_test_file(
+        test_file: str, tasks: List[str],
+        glue_char: str = "|", regexp: str = "({task}=)", glued_task: Optional[str] = "morph",
+        default_value="_", treated: Optional[str] = "treated",
+        ignore: str = "--IGN.--", remove_disambiguation=True,
+        task_map = {"pos": "POS"}
+) -> List[Dict[str, str]]:
+    """
+
+    :param test_file:
+    :param tasks:
+    :param glue_char:
+    :param regexp:
+    :param glued_task:
+    :param default_value:
+    :param treated:
+    :param ignore:
+    :param remove_disambiguation:
+    :param task_map:
+    :returns:
+
+    """
+    res = {
+        task: re.compile(regexp.format(task=task))
+        for task in tasks
+    }
+    form_key = "form"
+    if treated:
+        form_key = treated
+    out = []
+    remover_dis = re.compile(r"(\d+)$")
+    with open(test_file) as f:
+        for line_no, line in enumerate(f):
+            data = line.strip().split()
+            if not data:
+                continue
+            if line_no == 0:
+                header = data
+                filtered_task = [task for task in tasks if task not in header]
+                continue
+            data = dict(zip(header, data))
+            if ignore and data[form_key] == ignore:
+                continue
+            if glued_task:
+                glued = data[glued_task].split(glue_char)
+                data.update({
+                    task: res[task].sub("", glue_value)
+                    for glue_value in glued
+                    for task in filtered_task
+                    if res[task].match(glue_value)
+                })
+            if remove_disambiguation:
+                data["lemma"] = remover_dis.sub("", data["lemma"])
+
+            out.append({task: data.get(task_map.get(task, task), default_value) for task in [form_key]+tasks})
+
+    return out
+
+
+def process_test_file(
+        model_name: str, annotation_lists: List[Dict[str, str]],
+        sentence_marker_column: str = "form", sentence_marker_regex: str = r"^[.!?$]+$"
+) -> List[List[Dict[str, str]]]:
+    """
+
+    Parameters
+    ----------
+    model_name
+    annotation_lists
+    sentence_marker_column
+    sentence_marker_regex
+
+    Returns
+    -------
+
+    """
+
+    tagger: ExtensibleTagger = get_tagger(model_name)
+    tasks = [task for model, tasks in tagger.models for task in tasks]
+
+    # Need to deal with sentences
+    new_sentence_cat = sentence_marker_column
+    new_sentence_match = re.compile(sentence_marker_regex)
+
+    data_iterator, _ = get_iterator_and_processor()
+
+    # Apply normalization
+    if isinstance(data_iterator.tokenizer, MemorizingTokenizer):
+        for anno in annotation_lists:
+            anno["form"] = data_iterator.tokenizer.replacer(anno["form"])
+
+    # Transform sequence into group of sentences
+    sentences = [[]]
+    for tok in annotation_lists:
+        if new_sentence_match.match(tok[new_sentence_cat]):
+            sentences[-1].append(tok)
+            sentences.append([])
+        else:
+            sentences[-1].append(tok)
+
+    # Excluding tokens
+    new_sentences = []
+    for sentence in sentences:
+        if not sentence:
+            continue
+
+        nb_tokens = [data["form"] for data in sentence]
+        toks, excluded_ids = data_iterator.exclude_tokens(nb_tokens)
+        new_sentences.append([
+            anno
+            for anno_id, anno in enumerate(sentence)
+            if anno_id not in excluded_ids
+        ])
+
+    return new_sentences
+
+
+def write_eval_file(filename, sentences: List[List[Dict[str, str]]]):
+    with open(filename, "w") as f:
+        headers = list(sentences[0][0].keys())
+        f.write("\t".join(headers)+"\n")
+        for sentence in sentences:
+            for token in sentence:
+                f.write("\t".join([token[head] for head in headers])+"\n")
+            f.write("\n")
+
+    return len(sentences)
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