Here are the steps to combine multiple lines into a single line with commas in Notepad++:
1. Open the Find and Replace Dialog:
Press Ctrl+H or go to Search Replace in the menu bar.
2. Enable Regular Expressions:
Check the "Regular expression" box at the bottom of the dialog.
3. Find Line Breaks:
In the "Find what" field, enter the following regular expression: \R
This matches any type of line break, ensuring compatibility across different operating systems.
4. Replace with Comma and Space:
In the "Replace with" field, enter a comma followed by a space: ,
5. Replace All:
Click the "Replace All" button to combine all lines into a single line, separated by commas.