scripts: Code Block rst parser

Signed-off-by: John Andersen <john.s.andersen@intel.com>

source/scripts/_python/utilities/code-blocks.py

@@ -0,0 +1,31 @@
+'''
+Usage: python code-blocks.py path/to/file.rst
+
+Parses code blocks out of rst file
+'''
+import sys
+
+def code_blocks(filename):
+    with open(filename, 'r') as fd:
+        c_indent = ''
+        in_section = []
+        for line in fd:
+            indent = line[:len(line) - len(line.lstrip())]
+            if 'code-block' in line:
+                in_section = [line.strip()]
+                c_indent = ''
+            elif in_section:
+                if not c_indent and line.strip():
+                    c_indent = indent
+                if not (len(indent) >= len(c_indent)) and line.strip():
+                    yield in_section[2:]
+                    in_section = []
+                else:
+                    in_section.append(line[len(c_indent):].rstrip())
+
+def main():
+    for code_block in code_blocks(sys.argv[1]):
+        print('\n'.join(code_block) + '\n')
+
+if __name__ == '__main__':
+    main()