c++ - 每行一个 Clang 格式数组初始值设定项

Question

Clang 格式，给定一个带有初始值设定项的结构数组，每行放置两个项目:

sym keywords[] = {
    {0, 0, "C"},           {0, 0, "T"},
    {0, 0, "V"},           {0, 0, "ax"},
    {0, 0, "bool"},        {0, 0, "break"},
    ...
    {0, 0, "val"},         {0, 0, "vector"},
    {0, 0, "version"},     {0, 0, "void"},
    {0, 0, "while"},
};

我怎样才能让它每行只放一个项目？

clang-format, array initialisers是我能找到的最接近这个问题的讨论，但是所提出的解决方案都没有任何效果； Cpp11BracedListStyle: false 做同样的事情，除了大括号之间有额外的空格，正如你在上面看到的，确保最后一个项目后有一个逗号，没有帮助。

Answer 1

我不完全确定，但是将 ArrayInitializerAlignmentStyle 设置为 left 可能会实现该结果。此选项是在 clang-format 版本 13 中添加的。

至少我当前的设置会将您的代码变成:

sym keywords[] = {
    {0, 0, "C"      },
    {0, 0, "T"      },
    {0, 0, "V"      },
    {0, 0, "ax"     },
    {0, 0, "bool"   },
    {0, 0, "break"  },
    {0, 0, "val"    },
    {0, 0, "vector" },
    {0, 0, "version"},
    {0, 0, "void"   },
    {0, 0, "while"  },
};

如果我删除该设置，我会得到类似于您的结果。

我当前的设置，在其他位置可能不符合您的预期:

---
AlignAfterOpenBracket: Align
AlignArrayOfStructures: Left
AlignConsecutiveAssignments: true
AlignConsecutiveDeclarations: true
AlignConsecutiveMacros: true
AlignEscapedNewlines: Left
AlignOperands: true
AlignTrailingComments: true
AllowShortBlocksOnASingleLine: false
AllowShortCaseLabelsOnASingleLine: false
AllowShortFunctionsOnASingleLine: None
AllowShortIfStatementsOnASingleLine: Never
AllowShortLambdasOnASingleLine: None
AllowShortLoopsOnASingleLine: false
BreakBeforeBraces: Allman
BreakConstructorInitializers: AfterColon
BreakInheritanceList: AfterColon
ColumnLimit: 120
EmptyLineBeforeAccessModifier: Always
FixNamespaceComments: true
IncludeBlocks: Regroup
IndentCaseLabels: true
IndentPPDirectives: BeforeHash
IndentWidth: 4
IndentWrappedFunctionNames: true
KeepEmptyLinesAtTheStartOfBlocks: false
MaxEmptyLinesToKeep: 1
PackConstructorInitializers: NextLine
PenaltyBreakAssignment: 10
PenaltyBreakBeforeFirstCallParameter: 10
PenaltyBreakComment: 10
PenaltyBreakFirstLessLess: 10
PenaltyBreakString: 10
PenaltyBreakTemplateDeclaration: 10
PenaltyExcessCharacter: 10
PenaltyReturnTypeOnItsOwnLine: 1000
PointerAlignment: Left
ReflowComments: true
SortUsingDeclarations: true
SpaceAfterCStyleCast: false
SpaceAfterLogicalNot: false
SpaceBeforeAssignmentOperators: true
SpaceBeforeCtorInitializerColon: true
SpaceBeforeInheritanceColon: true
SpaceBeforeParens: ControlStatements
SpacesInCStyleCastParentheses: false
Standard: Latest
TabWidth: 4
UseTab: Never