How to match “anything up until this sequence of characters” in a regular expression?

Question

Take this regular expression: /^[^abc]/. This will match any single character at the beginning of a string, except a, b, or c.

If you add a *

Answer 1

On python:

.+?(?=abc) works for the single line case.

[^]+?(?=abc) does not work, since python doesn't recognize [^] as valid regex. To make multiline matching work, you'll need to use the re.DOTALL option, for example:

re.findall('.+?(?=abc)', data, re.DOTALL)