c_wrapper_generator: Added blockstr_format utility function.

Signed-off-by: Minos Galanakis <[email protected]>

scripts/mbedtls_framework/c_wrapper_generator.py

@@ -11,7 +11,7 @@
 import os
 import re
 import sys
-import textwrap
+import inspect
 from typing import Dict, NamedTuple, List, Optional, Tuple
 
 from .c_parsing_helper import ArgumentInfo, FunctionInfo
@@ -31,6 +31,9 @@ WrapperInfo = NamedTuple('WrapperInfo', [
     ('wrapper_name', str),
 ])
 
+def blockstr_format(in_str: str, new_lines: int = 1) -> str:
+    """Return a whitespace stripped str, appended with user defined empty lines."""
+    return inspect.cleandoc(in_str) + ("\n" * (new_lines + 1))
 
 class Base:
     """Generate a C source file containing wrapper functions."""
@@ -67,17 +70,17 @@ class Base:
 
         This includes a description comment and some include directives.
         """
-        prologue = textwrap.dedent(f'''
+        prologue = blockstr_format(f'''
             /* Automatically generated by {self.program_name}, do not edit! */
 
             /* Copyright The Mbed TLS Contributors
              * SPDX-License-Identifier: Apache-2.0 OR GPL-2.0-or-later
              */
 
-        ''').lstrip()
+        ''')
 
         if header:
-            prologue += textwrap.dedent(f'''
+            prologue += blockstr_format(f'''
                 #ifndef {self.header_guard}
                 #define {self.header_guard}
 
@@ -85,7 +88,7 @@ class Base:
                 extern "C" {{
                 #endif
 
-            ''').lstrip()
+            ''')
 
         for include in self._INCLUDES:
             prologue += "#include {}\n".format(include)
@@ -100,14 +103,14 @@ class Base:
         """Write the epilogue of a C file."""
         epilogue = ""
         if header:
-            epilogue += textwrap.dedent(f'''
+            epilogue += blockstr_format(f'''
                 #ifdef __cplusplus
                 }}
                 #endif
 
                 #endif /* {self.header_guard} */
 
-            ''').lstrip()
+            ''')
 
         epilogue += ('/* End of automatically generated file. */\n')
         out.write(epilogue)