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

Rui Ueyama via Phabricator via llvm-commits llvm-commits at lists.llvm.org
Thu Jan 4 23:17:42 PST 2018

ruiu added inline comments.

Comment at: lib/Option/OptTable.cpp:280
+    // "--helm", suggest "--help" over "-help".
+    StringRef Prefix;
+    for (int P = 0; CandidateInfo.Prefixes[P]; P++) {
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.


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