1 files changed, 35 insertions, 0 deletions
diff --git a/src/boost/tools/build/src/util/option.py b/src/boost/tools/build/src/util/option.py
new file mode 100644
index 000000000..33a1b8d75
--- /dev/null
+++ b/src/boost/tools/build/src/util/option.py
@@ -0,0 +1,35 @@
+#  Copyright (c) 2005-2010 Vladimir Prus.
+#
+#  Use, modification and distribution is subject to the Boost Software
+#  License Version 1.0. (See accompanying file LICENSE.txt or
+#  https://www.bfgroup.xyz/b2/LICENSE.txt)
+
+import sys
+import re
+import b2.util.regex
+
+options = {}
+
+# Set a value for a named option, to be used when not overridden on the command
+# line.
+def set(name, value=None):
+
+    global options
+
+    options[name] = value
+
+def get(name, default_value=None, implied_value=None):
+
+    global options
+
+    matches = b2.util.regex.transform(sys.argv, "--" + re.escape(name) + "=(.*)")
+    if matches:
+        return matches[-1]
+    else:
+        m = b2.util.regex.transform(sys.argv, "--(" + re.escape(name) + ")")
+        if m and implied_value:
+            return implied_value
+        elif options.get(name) is not None:
+            return options[name]
+        else:
+            return default_value