apply preliminary formatting guidelines

Discussion: ComputationalRadiationPhysics/contributing#39

.clang-format

@@ -1,77 +1,98 @@
 ---
+Language: Cpp
+Standard: c++17
+DisableFormat:   false
 AccessModifierOffset: -4
 AlignAfterOpenBracket: AlwaysBreak
 AlignConsecutiveAssignments: false
+#AlignConsecutiveBitFields: false
 AlignConsecutiveDeclarations: false
-AlignEscapedNewlines: DontAlign
-AlignOperands: false
+AlignConsecutiveMacros: false
+AlignEscapedNewlines: Right
+AlignOperands: false #DontAlign
 AlignTrailingComments: false
+AllowAllArgumentsOnNextLine: false
+AllowAllConstructorInitializersOnNextLine: false
 AllowAllParametersOfDeclarationOnNextLine: false
-AllowShortBlocksOnASingleLine: false
+AllowShortBlocksOnASingleLine: Never
 AllowShortCaseLabelsOnASingleLine: false
-AllowShortFunctionsOnASingleLine: Empty
-AllowShortIfStatementsOnASingleLine: false
-AllowShortLoopsOnASingleLine: true
+#AllowShortEnumsOnASingleLine: false
+AllowShortFunctionsOnASingleLine: None
+AllowShortIfStatementsOnASingleLine: Never
+AllowShortLambdasOnASingleLine: All
+AllowShortLoopsOnASingleLine: false
 AlwaysBreakAfterReturnType: None
-AlwaysBreakBeforeMultilineStrings: true
+AlwaysBreakBeforeMultilineStrings: false
 AlwaysBreakTemplateDeclarations: Yes
 BinPackArguments: false
 BinPackParameters: false
-BreakBeforeBraces: Custom
-BraceWrapping:
-  AfterClass: true
-  AfterControlStatement: true
-  AfterEnum: true
-  AfterFunction: true
-  AfterNamespace: true
-  AfterStruct: true
-  AfterUnion: true
-  AfterExternBlock: true
-  BeforeCatch: true
-  BeforeElse: true
-  IndentBraces: false
-  SplitEmptyFunction: false
-  SplitEmptyRecord: false
-  SplitEmptyNamespace: false
+#BitFieldColonSpacing: Both
 BreakBeforeBinaryOperators: All
+BreakBeforeBraces: Allman
 BreakBeforeTernaryOperators: true
-BreakConstructorInitializers: AfterColon
-BreakInheritanceList: AfterColon
+BreakConstructorInitializers: BeforeComma
+BreakInheritanceList: BeforeComma
 BreakStringLiterals: true
-ColumnLimit: 80
+ColumnLimit:     120
+CommentPragmas:  '^ COMMENT pragma:'
 CompactNamespaces: false
 ConstructorInitializerAllOnOneLineOrOnePerLine: true
-ConstructorInitializerIndentWidth: 8
+ConstructorInitializerIndentWidth: 4
 ContinuationIndentWidth: 4
 Cpp11BracedListStyle: true
+DeriveLineEnding: false
 DerivePointerAlignment: false
-FixNamespaceComments: false
-IncludeBlocks: Regroup
+ExperimentalAutoDetectBinPacking: false
+FixNamespaceComments: true
+IncludeBlocks:   Regroup
+IncludeCategories:
+IncludeIsMainRegex: '(Test)?$'
+IncludeIsMainSourceRegex: ''
+#IndentCaseBlocks: true
 IndentCaseLabels: false
-IndentPPDirectives: None
+#IndentExternBlock: AfterExternBlock
+IndentGotoLabels: true
+IndentPPDirectives: AfterHash
 IndentWidth: 4
 IndentWrappedFunctionNames: false
 KeepEmptyLinesAtTheStartOfBlocks: false
-Language: Cpp
+MacroBlockBegin: ''
+MacroBlockEnd:   ''
+MaxEmptyLinesToKeep: 2
 NamespaceIndentation: All
-PointerAlignment: Middle
+#OperandAlignmentStyle: Align
+PenaltyBreakAssignment: 2
+PenaltyBreakBeforeFirstCallParameter: 19
+PenaltyBreakComment: 300
+PenaltyBreakFirstLessLess: 120
+PenaltyBreakString: 1000
+PenaltyBreakTemplateDeclaration: 10
+PenaltyExcessCharacter: 1000000
+PenaltyReturnTypeOnItsOwnLine: 1000
+PointerAlignment: Left
 ReflowComments: true
 SortIncludes: true
 SortUsingDeclarations: true
-SpaceAfterCStyleCast: false
-SpaceAfterTemplateKeyword: false
+SpaceAfterCStyleCast: true
+SpaceAfterLogicalNot: false
+SpaceAfterTemplateKeyword: true
 SpaceBeforeAssignmentOperators: true
-SpaceBeforeCpp11BracedList: false
+SpaceBeforeCpp11BracedList: true
 SpaceBeforeCtorInitializerColon: true
 SpaceBeforeInheritanceColon: true
-SpaceBeforeParens: Never
+SpaceBeforeParens: ControlStatements
 SpaceBeforeRangeBasedForLoopColon: true
+SpaceInEmptyBlock: false
 SpaceInEmptyParentheses: false
-SpacesInAngles: false
-SpacesInCStyleCastParentheses: false
+SpacesBeforeTrailingComments: 1
+SpacesInAngles:  false
+SpacesInConditionalStatement: false
 SpacesInContainerLiterals: false
+SpacesInCStyleCastParentheses: false
 SpacesInParentheses: false
 SpacesInSquareBrackets: false
-Standard: Cpp11
+SpaceBeforeSquareBrackets: false
+TabWidth: 4
+UseCRLF: false
 UseTab: Never
 ...