add .clang-format

.clang-format

@@ -0,0 +1,220 @@
+---
+AccessModifierOffset: 0
+EmptyLineAfterAccessModifier: Never
+EmptyLineBeforeAccessModifier: Always
+IndentAccessModifiers: true
+TabWidth: 4
+UseTab: Never
+UseCRLF: false
+Language: Cpp
+IndentWidth: 4
+AlignAfterOpenBracket: DontAlign
+AlignArrayOfStructures: Left
+AlignConsecutiveAssignments: AcrossComments
+AlignConsecutiveBitFields: AcrossComments
+AlignConsecutiveDeclarations: None
+AlignConsecutiveMacros: AcrossComments
+AlignEscapedNewlines: Left
+AlignOperands: AlignAfterOperator
+AlignTrailingComments: true
+AllowAllArgumentsOnNextLine: false
+AllowAllConstructorInitializersOnNextLine: false
+AllowAllParametersOfDeclarationOnNextLine: false
+AllowShortBlocksOnASingleLine: Never
+AllowShortCaseLabelsOnASingleLine: false
+AllowShortEnumsOnASingleLine: false
+AllowShortFunctionsOnASingleLine: None
+AllowShortIfStatementsOnASingleLine: Never
+AllowShortLambdasOnASingleLine: None
+AllowShortLoopsOnASingleLine: false
+AlwaysBreakAfterDefinitionReturnType: None
+AlwaysBreakAfterReturnType: None
+AlwaysBreakBeforeMultilineStrings: false
+AlwaysBreakTemplateDeclarations: No
+BinPackArguments: false
+BinPackParameters: false
+AttributeMacros:
+  - __capability
+BitFieldColonSpacing: Both
+BraceWrapping:
+  AfterCaseLabel: true
+  AfterClass: true
+  AfterControlStatement: Always
+  AfterEnum: true
+  AfterFunction: true
+  AfterNamespace: true
+  AfterObjCDeclaration: true
+  AfterStruct: true
+  AfterUnion: true
+  AfterExternBlock: true
+  BeforeCatch: true
+  BeforeElse: true
+  BeforeLambdaBody: true
+  BeforeWhile: true
+  IndentBraces: false
+  SplitEmptyFunction: true
+  SplitEmptyRecord: true
+  SplitEmptyNamespace: true
+BreakBeforeBraces: Custom
+BreakAfterJavaFieldAnnotations: false
+BreakBeforeBinaryOperators: All
+BreakBeforeConceptDeclarations: false
+BreakBeforeTernaryOperators: true
+BreakConstructorInitializers: AfterColon
+BreakInheritanceList: AfterColon
+BreakStringLiterals: false
+ColumnLimit: 0
+CommentPragmas: "^ IWYU pragma:"
+CompactNamespaces: false
+ConstructorInitializerAllOnOneLineOrOnePerLine: true
+ConstructorInitializerIndentWidth: 4
+ContinuationIndentWidth: 4
+Cpp11BracedListStyle: true
+DeriveLineEnding: true
+DerivePointerAlignment: true
+DisableFormat: false
+ExperimentalAutoDetectBinPacking: false
+FixNamespaceComments: true
+ForEachMacros:
+  - foreach
+  - Q_FOREACH
+  - BOOST_FOREACH
+IfMacros:
+  - KJ_IF_MAYBE
+IncludeBlocks: Regroup
+IncludeCategories:
+  - Regex: ^<ext/.*\.h>
+    Priority: 2
+    CaseSensitive: false
+    SortPriority: 0
+  - Regex: ^<.*\.h>
+    Priority: 1
+    CaseSensitive: false
+    SortPriority: 0
+  - Regex: ^<.*
+    Priority: 2
+    CaseSensitive: false
+    SortPriority: 0
+  - Regex: .*
+    Priority: 0
+    CaseSensitive: false
+    SortPriority: 0
+IncludeIsMainRegex: ([-_](test|unittest))?$
+IncludeIsMainSourceRegex: ""
+IndentCaseBlocks: true
+IndentCaseLabels: true
+IndentExternBlock: Indent
+IndentGotoLabels: false
+IndentPPDirectives: BeforeHash
+IndentRequires: true
+IndentWrappedFunctionNames: true
+InsertTrailingCommas: None
+JavaScriptQuotes: Double
+JavaScriptWrapImports: true
+KeepEmptyLinesAtTheStartOfBlocks: false
+LambdaBodyIndentation: OuterScope
+MacroBlockBegin: ""
+MacroBlockEnd: ""
+MaxEmptyLinesToKeep: 1
+NamespaceIndentation: All
+ObjCBinPackProtocolList: Never
+ObjCBlockIndentWidth: 4
+ObjCBreakBeforeNestedBlockParam: false
+ObjCSpaceAfterProperty: true
+ObjCSpaceBeforeProtocolList: true
+PPIndentWidth: 4
+PackConstructorInitializers: Never
+PenaltyBreakAssignment: 2
+PenaltyBreakBeforeFirstCallParameter: 1
+PenaltyBreakComment: 300
+PenaltyBreakFirstLessLess: 120
+PenaltyBreakOpenParenthesis: 0
+PenaltyBreakString: 1000
+PenaltyBreakTemplateDeclaration: 10
+PenaltyExcessCharacter: 1000000
+PenaltyIndentedWhitespace: 0
+PenaltyReturnTypeOnItsOwnLine: 200
+PointerAlignment: Left
+QualifierAlignment: Left
+RawStringFormats:
+  - Language: Cpp
+    BasedOnStyle: google
+    Delimiters:
+      - cc
+      - CC
+      - cpp
+      - Cpp
+      - CPP
+      - c++
+      - C++
+    CanonicalDelimiter: ""
+  - Language: TextProto
+    EnclosingFunctions:
+      - EqualsProto
+      - EquivToProto
+      - PARSE_PARTIAL_TEXT_PROTO
+      - PARSE_TEST_PROTO
+      - PARSE_TEXT_PROTO
+      - ParseTextOrDie
+      - ParseTextProtoOrDie
+      - ParseTestProto
+      - ParsePartialTestProto
+    BasedOnStyle: google
+    Delimiters:
+      - pb
+      - PB
+      - proto
+      - PROTO
+    CanonicalDelimiter: pb
+ReferenceAlignment: Left
+ReflowComments: false
+RemoveBracesLLVM: false
+SeparateDefinitionBlocks: Always
+ShortNamespaceLines: 0
+SortIncludes: CaseSensitive
+SortJavaStaticImport: Before
+SortUsingDeclarations: true
+SpaceAfterCStyleCast: true
+SpaceAfterLogicalNot: false
+SpaceAfterTemplateKeyword: false
+SpaceAroundPointerQualifiers: Default
+SpaceBeforeAssignmentOperators: true
+SpaceBeforeCaseColon: true
+SpaceBeforeCpp11BracedList: true
+SpaceBeforeCtorInitializerColon: true
+SpaceBeforeInheritanceColon: true
+SpaceBeforeParens: Custom
+SpaceBeforeParensOptions:
+  AfterControlStatements: true
+  AfterForeachMacros: false
+  AfterFunctionDeclarationName: false
+  AfterFunctionDefinitionName: false
+  AfterIfMacros: false
+  AfterOverloadedOperator: true
+  BeforeNonEmptyParentheses: false
+SpaceBeforeRangeBasedForLoopColon: true
+SpaceBeforeSquareBrackets: false
+SpaceInEmptyBlock: false
+SpaceInEmptyParentheses: false
+SpacesBeforeTrailingComments: 1
+SpacesInAngles: Never
+SpacesInCStyleCastParentheses: false
+SpacesInConditionalStatement: false
+SpacesInContainerLiterals: false
+SpacesInLineCommentPrefix:
+  Minimum: 1
+  Maximum: 1
+SpacesInParentheses: false
+SpacesInSquareBrackets: false
+Standard: Auto
+StatementAttributeLikeMacros:
+  - Q_EMIT
+StatementMacros:
+  - Q_UNUSED
+  - QT_REQUIRE_VERSION
+WhitespaceSensitiveMacros:
+  - STRINGIZE
+  - PP_STRINGIZE
+  - BOOST_PP_STRINGIZE
+  - NS_SWIFT_NAME
+  - CF_SWIFT_NAME