1 files changed, 61 insertions, 0 deletions

diff --git a/prep_lookup.py b/prep_lookup.py
new file mode 100644
index 0000000..7fdfeec
--- /dev/null
+++ b/prep_lookup.py
@@ -0,0 +1,61 @@
+import argparse
+from pathlib import Path
+import collections
+import os
+
+def en_and_other(other, dirname):
+    from nltk.corpus import wordnet as wn
+    other_file = os.path.join(dirname, other + "." + 'tab')
+    lookup = collections.defaultdict(dict)
+
+    with open(other_file, 'r') as f:
+        for line in f:
+            (pos, offset, rest) = line.split(' ', 2)
+            offset = int(offset)
+            # part of speech + offset is unique, so keys are combination of both
+            en_def = wn.synset_from_pos_and_offset(pos, offset).definition()
+            lookup[(pos, offset)]['en'] = en_def
+            lookup[(pos,offset)][other] = rest.rstrip()
+    return lookup
+
+def both_lookup(source, target, dirname):
+    from_file = os.path.join(dirname, source + "." + 'tab')
+    to_file = os.path.join(dirname, target + "." + 'tab')
+    lookup = collections.defaultdict(dict)
+
+    for tab_file, lang_code in zip((from_file, to_file), (source, target)):
+        with open(tab_file, 'r') as f:
+            for line in f:
+                (pos, offset, rest) = line.split(' ', 2)
+                offset = int(offset)
+                # part of speech + offset is unique, so keys are combination of both
+                lookup[(pos,offset)][lang_code] = rest.rstrip()
+    return lookup
+
+def main(args):
+
+    dirname = args.tab_directory
+    source_lang = args.source_lang
+    target_lang = args.target_lang
+
+    if (source_lang == 'en'):
+            lookup = en_and_other(target_lang, dirname)
+    elif (target_lang == 'en'):
+            lookup = en_and_other(source_lang, dirname)
+    else:
+            lookup = both_lookup(source_lang, target_lang, dirname)
+
+    with open(f'{source_lang}_to_{target_lang}.def', 'w') as sf, open(f'{target_lang}_to_{source_lang}.def', 'w') as tf:
+        for (pos, offset), overlap in lookup.items():
+            if source_lang in overlap and target_lang in overlap:
+                print(overlap[source_lang], file=sf)
+                print(overlap[target_lang], file=tf)
+
+if __name__ == "__main__":
+    parser = argparse.ArgumentParser(description='Create a pair of .def files for 2 given languages')
+    parser.add_argument('--tab_directory', help='directory of the .tab files', default='wordnets/tab_files')
+    parser.add_argument('-s', '--source_lang', help='source language 2 letter code')
+    parser.add_argument('-t', '--target_lang', help='target language 2 letter code')
+    args = parser.parse_args()
+
+    main(args)