lecture 6 code

lectures/lecture06/comments.py

@@ -0,0 +1,19 @@
+import pgf
+
+grammar = pgf.readPGF("Foods.pgf")
+parse_lang = grammar.languages["FoodsEng"]
+
+with open("data.csv") as data:
+    lines = data.readlines()
+
+for line in lines:
+    [polarity, kind, quality] = line.split(",")
+    k = [e for (_,e) in parse_lang.parse(kind, cat=pgf.readType("Kind"))][0]
+    q = [e for (_,e) in parse_lang.parse(quality, cat=pgf.readType("Quality"))][0]
+    expr_string = "{} (This ({})) ({})".format("Pred" if polarity == "+" else "PredNeg", k, q)
+    print(expr_string)
+    expr = pgf.readExpr(expr_string)
+
+    for lin_lang in grammar.languages.values():
+        print(lin_lang.linearize(expr))
+    print()