I am trying to parse mediawiki text using Parsec. Some of the constructs in mediawiki markup can only occur at the start of rows (such as the header markup ==header level 2==). In regexp I would use an anchor (such as ^) to find the start of a line.
One attempt in GHCi is
Prelude Text.Parsec> parse (char '\n' *> string "==" *> many1 letter <* string "==") "" "\n==hej=="
Right "hej"
but this is not too good since it will fail on the first line of a file. I feel like this should be a solved problem...
What is the most idiomatic "Start of line" parsing in Parsec?