makeqstrdata: correct range of low code points to 0x80..0x9f inclusive

The previous range was unintentionally big and overlaps some characters
we'd like to use (and also 0xa0, which we don't intentionally use)

Author: jepler

py/makeqstrdata.py

@@ -116,7 +116,7 @@ def pua_to_ngrams(compressed, ngrams):
     if len(ngrams) > 32:
         start, end = 0xe000, 0xf8ff
     else:
-        start, end = 0x80, 0xbf
+        start, end = 0x80, 0x9f
     return "".join(ngrams[ord(c) - start] if (start <= ord(c) <= end) else c for c in compressed)
 
 def compute_huffman_coding(translations, qstrs, compression_filename):
@@ -146,6 +146,7 @@ def compute_huffman_coding(translations, qstrs, compression_filename):
         last_l = l
     lengths = bytearray()
     print("// length count", length_count)
+    print("// bigrams", ngrams)
     for i in range(1, max(length_count) + 2):
         lengths.append(length_count.get(i, 0))
     print("// values", values, "lengths", len(lengths), lengths)