run fix_dunder.py, update images

Author: ramalho

fix_dunder.py

@@ -0,0 +1,51 @@
+#!/usr/bin/env python3
+
+import argparse
+import os
+import re
+import shutil
+import sys
+
+SCRIPT = sys.argv[0]
+RE_DUNDER_CODE = re.compile(r'`__.+?__`')
+RE_DUNDER_IDENT = re.compile(r'`(__.+?__)`')
+
+def backup(filename: str) -> None:
+    msg = ''
+    copy_name = filename + '.bkp'
+    try:
+        shutil.copy2(filename, copy_name)
+    except FileNotFoundError:
+        msg = f'File {filename!r} not found.'
+    if not msg and not os.path.exists(copy_name):
+        msg = f'Unable to create {copy_name!r}.'
+    if msg:
+        print(msg, file=sys.stderr)
+        sys.exit(1)
+
+def replace(filename: str) -> str:
+    with open(filename) as fp:
+        adoc = fp.read()
+
+    for dunder_code in sorted(set(RE_DUNDER_CODE.findall(adoc))):
+        ident = RE_DUNDER_IDENT.match(dunder_code)[1]
+        adoc = re.sub(dunder_code, f'`+{ident}+`', adoc)
+        print(ident)
+
+    with open(filename, 'w') as fp:
+        fp.write(adoc)
+
+def main() -> None:
+    parser = argparse.ArgumentParser(
+        prog=SCRIPT,
+        description='Subsitui `__dunder__` por `+__dunder__+`.',
+        epilog=f'EXEMPLO:\n\t{SCRIPT} cap01.adoc')
+    
+    parser.add_argument('asciidoc_filename')
+    args = parser.parse_args()
+    backup(args.asciidoc_filename)
+    replace(args.asciidoc_filename)
+
+
+if __name__ == '__main__':
+    main()