python examples added

python/minitranslator.py

@@ -0,0 +1,25 @@
+# minimal translator that reads one line from stdio and translates from Eng to Swe with Minilang
+# presupposes 'make minilang'
+
+import pgf
+
+# change these three to translate with other grammars and languages
+absmodule = "MiniLang"
+fromname  = absmodule + "Eng"
+toname    = absmodule + "Swe"
+
+def main():
+  # read in the grammar, set up to and from languages
+  grammar  = pgf.readPGF(absmodule + ".pgf")
+  fromlang = grammar.languages[fromname]
+  tolang   = grammar.languages[toname]
+
+  # read a line of input, parse in "from" language, linearize in "to" language
+  line  = input("")
+  parseresult = fromlang.parse(line)
+  prob,tree  = parseresult.__next__()
+  print(tolang.linearize(tree))
+ 
+main()
+
+