ISO programming projects

[Terry Reedy]

"kj" <socyl at 987jk.com.invalid> wrote in message 
news:euojdp$mmt$1 at reader2.panix.com...
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| I'm looking for a collection of useful programming projects, at
| the "hobbyist" level.
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| My online search did turn up a few collections (isolated projects
| are less useful to me at the moment), but these projects are either
| more difficult than what I'm looking for (e.g. code a C compiler)
| or not terribly useful to the average person (e.g. a function that
| efficiently computes the n-th Fibonacci number).
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| Any pointers would be much appreciated.

There have been similar questions (with responses) on this newsgroup.  Have 
you searched those?