How query-replace-regexp for all text exact before specific text?

Question

emacs 26.1, windows 10

I have some text. I need to replace all text before WARN

I use:

But I need to delete all text BEFORE WARN. How I can do this?

here is the result:

may I suggest few alternative solutions: 1. You can define a keyboard macro as follows: C-x ( C-s WARN Ent M-b C-Space C-a C-w C-x ) This will give a macro that does what you need for first occurring line with WARN. Then just C-u 50 C-x e to do the same macro 50 times. 2. install multiple-cursors (and you should anyways) select WARN and then do mc/select-next-like-this (bind it to something easy) keep selecting and then just edit all lines with WARN as if you were editing a single line. — A_P
– A_P, Commented Feb 15, 2019 at 17:07
@A_P I known about multi cursors. I use them. But I want to solve this task by regexp. — a_subscriber
– a_subscriber, Commented Feb 15, 2019 at 17:17
emacs must be doing something under the covers. none of these solutions work stackoverflow.com/questions/2013124/… — A_P
– A_P, Commented Feb 15, 2019 at 17:35

Drew · Accepted Answer · 2019-02-14 17:06:08Z

1

To remove the text before WARN, just enter WARN as the replacement text. That is, use WARN as your input to the second prompt.

answered Feb 14, 2019 at 17:06

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