1 files changed, 31 insertions, 0 deletions
diff --git a/test_20121121/hex2binary.py b/test_20121121/hex2binary.py
new file mode 100755
index 0000000..a4002da
--- /dev/null
+++ b/test_20121121/hex2binary.py
@@ -0,0 +1,31 @@
+#!/usr/bin/env python
+
+import sys
+
+def main(fin, fout):
+    last = None
+
+    for c in fin.read():
+        if c not in "0123456789ABCDEF":
+            continue
+        if last == None:
+            last = c
+            continue
+        fout.write(chr(int("0x" + last + c, 16)))
+        last = None
+
+
+if __name__=="__main__":
+    if len(sys.argv) == 1:
+        fin = sys.stdin
+        fout = sys.stdout
+    elif len(sys.argv) == 3:
+        fin = open(sys.argv[1], 'r')
+        fout = open(sys.argv[2], 'w')
+        print "working..."
+    else:
+        print "ERROR: wrong number of arguments (in_file + out_file OR none)"
+
+    main(fin, fout)
+    fin.close()
+    fout.close()