Dots and pipes

In this section, we're going to cover two basic bits of regular expression syntax, and those are dots and pipes. So, to begin, we are going to install the regular expression library in Haskell, and we are going to introduce the dot and the pipe syntax. Let's find the Terminal, and we need to begin by installing the library, which can be done with the following command:

So, cabal install regex-posix will install our regular expression library. Now, once installed, let's go and create a new notebook, and dive in. We are going to name this notebook as RegexLearning. We need to import the Text.Regex.Posix library, so that we can ...

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