An anonymous reader writes: Command-line processing is historically one of the most ignored areas in software development. Just about any relatively complicated software has dozens of available command-line options. The GNU tool gperf is a "perfect" hash function that, for a given set of user-provided strings, generates C/C++ code for a hash table, a hash function, and a lookup function. This article provides a reference for a good discussion on how to use gperf for effective command-line processing, and on command-line processing techniques in general.
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