\definestartstop—a forgotten macro

Recently, I needed a macro, which I call \important, that will typeset its arguments in italic font and dark red color. At first, I used the definition


or its slightly refined alternative


The second alternative behaves like the first, but is slightly more robust. It does not grab the contents of its arguments, and hence works better if something inside #1 does category code jugglery.

Although, the above definition works fine, it does not have a ConTeXt flavour. What use is an easy to use macro package if you have to resort to TeX programming for such a simple macro?

Enter \definestartstop. The above command can be defined as


Much better.

But, wait a minute. The command is called \definestartstop. It defines an environment \startimportant ... \stopimportant. But, as a bonus, it also defines an inline \important{...}.

As a concluding note, I leave you with the following exercise. Guess the output of the following:




some normal text \important{some important text} some more normal text

  \input knuth


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