Add some docstrings

Signed-off-by: Stany MARCEL <stanypub@gmail.com>

1 files changed, 4 insertions, 0 deletions

diff --git a/src/cheader.py b/src/cheader.py
index b81b06d..67416a7 100644
--- a/src/cheader.py
+++ b/src/cheader.py
@@ -55,6 +55,8 @@ OPERATORS = {
 
 def eval_expr(expr):
 
+    """ Eval and expression inside a #define using a suppart of python grammar """
+
     def _eval(node):
         if isinstance(node, ast.Num):
             return node.n
@@ -73,6 +75,8 @@ def eval_expr(expr):
 
 def defines(base, include):
 
+    """ Extract #define from base/include following #includes """
+
     parsed = set()
     fname = os.path.normpath(os.path.abspath(os.path.join(base, include)))
     parsed.add(fname)