Remove invalid characters from file names. Fixes #6

pvdl.py

@@ -153,7 +153,7 @@ def get_chapters(vid_id, limit_rate):
         print_err("Error: Wrong link. No video found.")
 
     title = details["title"]
-    title = re.sub(r"[<>|/\\?*]", "_" ,title);
+    title = re.sub(r"[^\w\s\d.,\+\$\%\#\@\!\(\)\[\]\-\{\}]", "_" ,title);
     os.makedirs(title, 0o755, exist_ok=True)
 
     url = 'https://static.packt-cdn.com/products/{}/toc'.format(vid_id)
@@ -166,18 +166,19 @@ def get_chapters(vid_id, limit_rate):
     all_chapters = details['chapters']
     for x,i in enumerate(all_chapters):
         section = i['title']
-        section = re.sub(r"[<>|/\\?*]", "_" , section)
+        section = re.sub(r"[^\w\s\d.,\+\$\%\#\@\!\(\)\[\]\-\{\}]", "_" , section)
         s_path = "{}{}{:02}-{}".format(title, os.sep, x+1, section)
         os.makedirs(s_path, 0o755, exist_ok=True)
-        print(bcolors.OKGREEN + "\nChapter {}/{}:".format(x+1, len(all_chapters)), section, "\n" + bcolors.ENDC)
+        print(bcolors.OKGREEN + "\nChapter {}/{} ({} videos):".format(x+1, len(all_chapters), len(i['sections'])), section, "\n" + bcolors.ENDC)
         for y,c in enumerate(i['sections']):
             chapter = c['title']
-            chapter = re.sub(r"[<>|/\\?*]", "_" , chapter)
+            chapter = re.sub(r"[^\w\s\d.,\+\$\%\#\@\!\(\)\[\]\-\{\}]", "_" , chapter)
             c_path = "{}{}{:02}-{}.mp4".format(s_path, os.sep , y+1, chapter)
             video_id = i['id'] + '/' + c['id']
             video_url = get_video_url(vid_id, video_id)
             download_url(video_url, c_path, limit_rate)
 
+
 
 def start_download(username, password, vid_id, limit_rate):
     login(username, password)