Brian Gesiak 2fd0a70e2d [Option] For typo '-foo', suggest '--foo' ...

Summary:
https://reviews.llvm.org/rL321877 introduced the `OptTable::findNearest`
method, to find the closest edit distance option for a given string.
However, the implementation contained a bug: for a typo `-foo` with an
edit distance of 1 away from a valid option `--foo`, `findNearest`
would suggest a nearby option of `foo`. That is, the result would not
include the `--` prefix, and so was not a valid option.

Fix the bug by ensuring that the prefix string is initialized to one of
the valid prefixes for the option.

Test Plan: `check-llvm-unit`

Reviewers: v.g.vassilev, teemperor, ruiu, jroelofs, yamaguchi

Reviewed By: jroelofs

Subscribers: llvm-commits

Differential Revision: https://reviews.llvm.org/D41873

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@322109 91177308-0d34-0410-b5e6-96231b3b80d8

2018-01-09 19:38:04 +00:00

..

Arg.cpp

Reverting r315590; it did not include changes for llvm-tblgen, which is causing link errors for several people.

2017-10-15 14:32:27 +00:00

ArgList.cpp

Reverting r315590; it did not include changes for llvm-tblgen, which is causing link errors for several people.

2017-10-15 14:32:27 +00:00

CMakeLists.txt

Use ADDITIONAL_HEADER_DIRS in all LLVM CMake projects.

2015-02-11 03:28:02 +00:00

LLVMBuild.txt

…

Option.cpp

Reverting r315590; it did not include changes for llvm-tblgen, which is causing link errors for several people.

2017-10-15 14:32:27 +00:00

OptTable.cpp

[Option] For typo '-foo', suggest '--foo'

2018-01-09 19:38:04 +00:00