Notepad++

Edit-Line Operations-Join Lines

What you would expect (remove line breaks)

Search and replace with regular expressions

Searchbox: ^(.*?)A; Find the first 'A'

Replacebox: \1B; Replace the 'A' with 'B' leave all in front if it untouched.

Where to edit commands in the run-menu

C:\Users\<username>\AppData\Roaming\Notepad++\shortcuts.xml

Notepad++ in trouble because you opened a very big file

Remove it from C:\Users\<username>\AppData\Roaming\Notepad++\session.xml (use another text-editor)

Implement own scripts with NppExec

NOTE: for below you must have installed pycodestyle pip install pycodestyle

• Install NppExec plugin
• F6 to open script editor and put in:

NPP_SAVE
cd "$(FULL_CURRENT_PATH)"
env_set PYTHONIOENCODING=utf-8
python -u -m pycodestyle "$(FULL_CURRENT_PATH)"

• Save as PyCodeStyle (or anything you want)
• Clicking OK will execute the script.