Program Cross-Referencing

August 6, 2019

I’ve been writing a lot of Awk code at work lately; Awk is an acceptable language where I work, Scheme is not. One of my Awk programs got big enough that I needed a cross-referencer, so I pulled out the one on the next page from my dusty archives. It’s thirty years old, and still works! I was amazed. Though I guess I’ll have to update the list of keywords, because Gawk, which we use where I work, has many more keywords than Awk did thirty years ago.

Your task is to write a cross-referencer for your favorite language. When you are finished, you are welcome to read or run a suggested solution, or to post your own solution or discuss the exercise in the comments below.

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