add plain_text field that combines text fields

euscrawl.py

@@ -53,9 +53,9 @@ _CITATION = """\
 _URL = "http://ixa.ehu.eus/euscrawl/files/euscrawl-v1-free-jsonl.tar.bz2"
 _FILEPATH = "euscrawl-v1-free-jsonl/euscrawl-v1.free.jsonl"
 KEYS = [
+    "plain_text",
     "title",
     "opening",
-    "heading",
     "text",
     "extra",
     "license",
@@ -64,6 +64,7 @@ KEYS = [
     "author",
     "type",
     "lang",
+    "heading",
     "category",
     "tags",
     "id",
@@ -83,20 +84,23 @@ class EusCrawl(datasets.GeneratorBasedBuilder):
             description=_DESCRIPTION,
             features=datasets.Features(
                 {
+                    "plain_text": datasets.Value("string"),
                     "title": datasets.Value("string"),
                     "opening": datasets.Value("string"),
-                    "heading": datasets.Value("string"),
                     "text": datasets.Value("string"),
-                    "extra": datasets.Sequence({
-                        "title": datasets.Value("string"),
-                        "text": datasets.Value("string"),
-                    }),
+                    "extra": datasets.Sequence(
+                        {
+                            "title": datasets.Value("string"),
+                            "text": datasets.Value("string"),
+                        }
+                    ),
                     "license": datasets.Value("string"),
                     "source": datasets.Value("string"),
                     "url": datasets.Value("string"),
                     "author": datasets.Value("string"),
                     "type": datasets.Value("string"),
                     "lang": datasets.Value("string"),
+                    "heading": datasets.Value("string"),
                     "category": datasets.Sequence(datasets.Value("string")),
                     "tags": datasets.Sequence(datasets.Value("string")),
                     "id": datasets.Value("int32"),
@@ -128,5 +132,19 @@ class EusCrawl(datasets.GeneratorBasedBuilder):
             if filepath == _FILEPATH:
                 for id, line in enumerate(file):
                     data = json.loads(line)
-                    # defaut to empty string if field is missing
+                    plain_text_lines = []
+                    plain_text_lines += data.get("title", "").splitlines()
+                    plain_text_lines += data.get("opening", "").splitlines()
+                    plain_text_lines += data.get("text", "").splitlines()
+                    plain_text_lines += [
+                        line
+                        for extra in data.get("extra", [])
+                        for line in extra["title"].splitlines()
+                        + extra["text"].splitlines()
+                    ]
+                    plain_text_lines = [
+                        line.strip() for line in plain_text_lines if line.strip()
+                    ]
+                    data["plain_text"] = "\n".join(plain_text_lines)
+                    # defaut to None if field is missing
                     yield id, {key: data.get(key, None) for key in KEYS}