[PATCH] D41732: [Option] Add 'findNearest' method to catch typos

[Rui Ueyama via Phabricator via llvm-commits]

ruiu added inline comments.


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Comment at: lib/Option/OptTable.cpp:280
+    // "--helm", suggest "--help" over "-help".
+    StringRef Prefix;
+    for (int P = 0; CandidateInfo.Prefixes[P]; P++) {
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I wonder why you chose to use the prefix matching instead of edit distance. Conveniently, StringRef has edit_distance function, so you can use that if you want.


https://reviews.llvm.org/D41732