Clang-format: Add Whitesmiths indentation style

Summary:
This patch adds support for the Whitesmiths indentation style to clang-format. It’s an update to a patch submitted in 2015 (D6833), but reworks it to use the newer API.

There are still some issues with this patch, primarily around `switch` and `case` support. The added unit test won’t currently pass because of the remaining issues.

Reviewers: mboehme, MyDeveloperDay, djasper

Reviewed By: MyDeveloperDay

Subscribers: krasimir, MyDeveloperDay, echristo, cfe-commits

Patch By: @timwoj (Tim Wojtulewicz)

Tags: #clang

Differential Revision: https://reviews.llvm.org/D67627

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@372497 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 28 insertions, 0 deletions

diff --git a/docs/ClangFormatStyleOptions.rst b/docs/ClangFormatStyleOptions.rst
index 7193e3ede2..6a42da71b9 100644
--- a/docs/ClangFormatStyleOptions.rst
+++ b/docs/ClangFormatStyleOptions.rst
@@ -1128,6 +1128,34 @@ the configuration (without a prefix: ``Auto``).
         B
       };
 
+  * ``BS_Whitesmiths`` (in configuration: ``Whitesmiths``)
+    Like ``Allman`` but always indent braces and line up code with braces.
+
+    .. code-block:: c++
+
+      try
+        {
+        foo();
+        }
+      catch ()
+        {
+        }
+      void foo() { bar(); }
+      class foo
+        {
+        };
+      if (foo())
+        {
+        }
+      else
+        {
+        }
+      enum X : int
+        {
+        A,
+        B
+        };
+
   * ``BS_GNU`` (in configuration: ``GNU``)
     Always break before braces and add an extra level of indentation to
     braces of control statements, not to those of class, function