Django CharField storing newline

Question

I have a CharField storing user input, including things like "\n" (literally, not by hitting "enter"), which is later used for parsing text with regular expressions. When I fetch the model from the database, however, comparing the value to '\n' fails - it's equal to '\n' instead. How do I unescape it? I do escape it later before insertion into the regular expression, since the field may contain e.g. "*", which I want to be interpreted literally. I tried mark_safe but no luck.

You need to compare it with "\\n" instead of "\n" – Kartik Anand Sep 23 '15 at 14:52 — Kartik Anand, Sep 23 '15 at 14:52

score 1 · Answer 1 · edited May 23 '17 at 12:22

1

OK I figured it out, thanks to the answers in this question: Python Replace \\ with \

Basically, I needed to do something like that:

separator = processor.separator.decode('string_escape')  # Decode
expr = r"<something>" + re.escape(separator)  # Escape for the regular expression

edited May 23 '17 at 12:22

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answered Sep 23 '15 at 15:48

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Django CharField storing newline

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