1 files changed, 34 insertions, 0 deletions
diff --git a/roms/edk2/BaseTools/Source/C/BrotliCompress/brotli/scripts/dictionary/step-02-rfc-to-bin.py b/roms/edk2/BaseTools/Source/C/BrotliCompress/brotli/scripts/dictionary/step-02-rfc-to-bin.py
new file mode 100644
index 000000000..27737c583
--- /dev/null
+++ b/roms/edk2/BaseTools/Source/C/BrotliCompress/brotli/scripts/dictionary/step-02-rfc-to-bin.py
@@ -0,0 +1,34 @@
+# Step 02 - parse RFC.
+#
+# Static dictionary is described in "Appendix A" section in a hexadecimal form.
+# This tool locates dictionary data in RFC and converts it to raw binary format.
+
+import re
+
+rfc_path = "rfc7932.txt"
+
+with open(rfc_path, "r") as rfc:
+  lines = rfc.readlines()
+
+re_data_line = re.compile("^      [0-9a-f]{64}$")
+
+appendix_a_found = False
+dictionary = []
+for line in lines:
+  if appendix_a_found:
+    if re_data_line.match(line) is not None:
+      data = line.strip()
+      for i in range(32):
+        dictionary.append(int(data[2 * i : 2 * i + 2], 16))
+      if len(dictionary) == 122784:
+        break
+  else:
+    if line.startswith("Appendix A."):
+      appendix_a_found = True
+
+bin_path = "dictionary.bin"
+
+with open(bin_path, "wb") as output:
+  output.write(bytearray(dictionary))
+
+print("Parsed and saved " + str(len(dictionary)) + " bytes to " + bin_path)