Clojure multiline regular expression
clojure, regex
Solution
Disclaimer: I'm not a Clojure programmer, but I think this problem is independent of the language.
When multi-line mode is enabled, the interpretation of the caret `^` and the dollar `$` changes like this: Instead of matching the beginning and end of the entire input string, they match the beginning and the end of each line in the input string. This is - as far as I can see - not what you want/need.
What you want is for your `.*`s to match newlines (what they don't do by default) and this can be done by enabling the single-line mode (aka dot-all mode). So this means:
(re-find #"(?is)^<html>.*<body>.*</body>.*</html>" c))
You can also verify this on RegExr.
Problem
I'm trying to test a string for a basic html pattern and although I use the m (multiline) modifier it only works when the string is a 1-liner ``` (re-find #"(?im)^<html>.*<body>.*</body>.*</html>" c)) ``` Fails: ``` "<html> <body> sad </body> </html>" ``` Works: ``` "<html> <body> sad </body> </html>" ``` What am I doing wrong?