Remove shlex.quote to fix issues when filenames have spaces (#38)

* The shlex.quote is breaking file paths that have spaces in them, as it
adds an extra quote so files look like "'my file with spaces.h'" rather
than simply "my file with spaces.h". Removing the shlex lines fixes that issue.

* Apply suggestions from code review

---------

Co-authored-by: leake <carl.leake@karanadyn.com>
Co-authored-by: Henry Schreiner <HenrySchreinerIII@gmail.com>

Author: 3 people

pybind11_mkdoc/__init__.py

@@ -35,9 +35,9 @@ def _append_include_dir(args: list, include_dir: str, verbose: bool = True):
     """
 
     if os.path.isdir(include_dir):
-        args.append(f"-I{shlex.quote(include_dir)}")
+        args.append(f"-I{include_dir}")
     elif verbose:
-        print(f"Include directoy '{shlex.quote(include_dir)}' does not exist!")
+        print(f"Include directory {include_dir!r} does not exist!")
 
 
 def _append_definition(args: list, definition: str, verbose: bool = True):
@@ -61,9 +61,9 @@ def _append_definition(args: list, definition: str, verbose: bool = True):
     """
 
     try:
-        macro, value = definition.strip().split('=')
-        macro = shlex.quote(macro.strip())
-        value = shlex.quote(value.strip()) if value else '1'
+        macro, _, value = definition.partition('=')
+        macro = macro.strip()
+        value = value.strip() if value else '1'
 
         args.append(f"-D{macro}={value}")
     except ValueError as exc:
@@ -72,9 +72,9 @@ def _append_definition(args: list, definition: str, verbose: bool = True):
         if re.search(r'^[A-Za-z_][A-Za-z0-9_]*', definition):
             args.append(f"-D{definition}")
         else:
-            print(f"Failed to parse definition: {shlex.quote(definition)}")
+            print(f"Failed to parse definition: {definition}")
     except:
-        print(f"Failed to parse definition: {shlex.quote(definition)}")
+        print(f"Failed to parse definition: {definition}")
 
 
 
@@ -128,10 +128,10 @@ def main():
             _append_definition(mkdoc_args, arg[2:])
         else:
             # append argument as is and hope for the best
-            mkdoc_args.append(shlex.quote(arg))
+            mkdoc_args.append(arg)
 
     for header in parsed_args.header:
-        mkdoc_args.append(shlex.quote(header))
+        mkdoc_args.append(header)
 
     mkdoc(mkdoc_args, docstring_width, mkdoc_out)