Using a regex to append to the end of non-blank lines-CodePudding

I would think that this would be a common question, but I can't find anybody asking how to do this. There are people asking how to do the opposite (find blank lines) and add a   at the end of each one. For human readability, this document has blank lines between paragraphs.

(I don't want to replace the blank lines with  . I know this would achieve the same result, but for human readability and personal preference, I don't like how this makes the document one giant block of text.)

How can I write a regex that captures -- I don't know if this is the right word to use; maybe "groups"? -- the end of lines that aren't blank so that I can append to the end of them?

I am using Visual Studio code, so I'd like this to work in the search/replace box:

I'm assuming in the replacement box above, I'd need to say $some group number(s?), so I just said $x as a temporary placeholder. Here's what I've tried as search patterns:

^(?!:($))$
^(?!:(\S$))$
^(?!:([^\S]$))$
^(?!:([^\s]$))$
^(?!([^\S] ))$

All of these seem to grab the inverse of what I'm trying to find. I guess my strategy has been, between the beginning and end of the line, there shouldn't be only whitespace. But I'm pretty sure that's not what I'm saying.

CodePudding user response：

You can use

Find What: (\S)[^\S\n]*(\n)
Replace With: $1 $2

NOTE: The above replacement will not add the  s at the end of the last line if it is not blank. If you need that, use

Find What: (\S)[^\S\n]*$
Replace With: $1 

See the

is changed into

CodePudding user response：

This works to retain the spaces at the end of lines:

Find: (?<=^.*)(\S .*)

Replace: $1 