add read.Sentences

martinpopel · martinpopel · commit edbda8087c55 · 2017-01-27T16:19:34.000+01:00
diff --git a/udapi/block/read/conllu.py b/udapi/block/read/conllu.py
@@ -46,13 +46,13 @@ def __init__(self, strict=False,
     # Maybe the code could be refactored, but it is speed-critical,
     # so benchmarking is needed because calling extra methods may result in slowdown.
     def read_tree(self, document=None):
+        if self.filehandle is None:
+            return None
+
         root = Root()
         nodes = [root]
         parents = [0]
         comment = ''
-        if self.filehandle is None:
-            return None
-
         mwts = []
         for line in self.filehandle:
             line = line.rstrip()
diff --git a/udapi/block/read/sentences.py b/udapi/block/read/sentences.py
@@ -0,0 +1,17 @@
+"""Sentences class is a reader for plain-text sentences."""
+from udapi.core.basereader import BaseReader
+from udapi.core.root import Root
+
+
+class Sentences(BaseReader):
+    """A reader for plain-text sentences (one sentence per line) files."""
+
+    def read_tree(self, document=None):
+        if self.filehandle is None:
+            return None
+        line = self.filehandle.readline()
+        if line == '':
+            return None
+        root = Root()
+        root.text = line.rstrip()
+        return root
