How do I remove all non-ASCII characters with regex and Notepad

Question

I searched a lot  but nowhere is it written how to remove non-ASCII characters from Notepad     I need to know what command to write in find and replace  with picture it would be great     If I want to make a white-list and bookmark all the ASCII words lines so non-ASCII lines would be unmarked If the file is quite large and can t select all the ASCII lines and just want to select the lines containing non-ASCII characters

User · Answer

In addition to the answer by ProGM  in case you see characters in boxes like NUL or ACK and want to get rid of them  those are ASCII control characters  0 to 31   you can find them with the following expression and remove them     x00- x1F     In order to remove all non-ASCII AND ASCII control characters  you should remove all characters matching this regex      x1F- x7F

User · Answer

To remove all non-ASCII characters  you can use following replacement     x00- x7F      To highlight characters  I recommend using the Mark function in the search window  this highlights non-ASCII characters and put a bookmark in the lines containing one of them  If you want to highlight and put a bookmark on the ASCII characters instead  you can use the regex   x00- x7F  to do so     Cheers

User · Answer

To keep new lines    First select a character for new line    I used    Select replace option  extended  input  n replace with   Hit Replace All   Next    Select Replace option Regular Expression  Input this       x20- x7E   Keep Replace With Empty Hit Replace All   Now  Select Replace option Extended and Replace   with  n     now  you have a clean ASCII file

User · Answer

This expression will search for non-ASCII values      x00- x7F     Tick off  Search Mode   Regular expression   and click Find Next   Source  Regex any ASCII character

User · Answer

In Notepad    if you go to menu Search   Find characters in range   Non-ASCII Characters  128-255  you can then step through the document to each non-ASCII character   Be sure to tick off  Wrap around  if you want to loop in the document for all non-ASCII characters

User · Answer

Another way      Install the Text FX plugin if you don t have it already Go to the TextFX menu option -  zap all non printable characters to     It will replace all invalid chars with 3   symbols Go to Find Replace and look for       Replace it with a space    This is nice if you can t remember the regex or don t care to look it up   But the regex mentioned by others is a nice solution as well

User · Answer

Another good trick is to go into UTF8 mode in your editor so that you can actually see these funny characters and delete them yourself

User · Answer

Click on View Show Symbol Show All Character - to show the  SOH  characters in the file Click on the  SOH  symbol in the file CTRL H to bring up the replace Leave the  Find What   as is Change the  Replace with   to the character of your choosing  comma semicolon  other     Click  Replace All  Done and done

[regex] How do I remove all non-ASCII characters with regex and Notepad++?

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