如何使Dartfmt变得“友好”？矩阵？ [英] How do I make Dartfmt "friendly" for Matrices?

问题描述

对于应该是这样的矩阵：

For a Matrix that supposed to look like this:

const ColorFilter sepia = ColorFilter.matrix(<double>[
          0.393, 0.769, 0.189, 0, 0,
          0.349, 0.686, 0.168, 0, 0,
          0.272, 0.534, 0.131, 0, 0,
          0,     0,     0,     1, 0,
        ]);

但是dartfmt将其更改为：

But dartfmt changed it to become like this:

const ColorFilter sepia = ColorFilter.matrix(<double>[
          0.393,
          0.769,
          0.189,
          0,
          0,
          0.349,
          0.686,
          0.168,
          0,
          0,
          0.272,
          0.534,
          0.131,
          0,
          0,
          0,
          0,
          0,
          1,
          0,
        ]);

这很难看懂。因此，如何保持原始格式，以便可以更友好地看到Matrix。还是至少我该如何使Dartfmt不重新格式化任何列表？

This is hard to read. Thus, how can I keep the original format so that the Matrix can be seen more "friendly". Or at least how can I make Dartfmt not to reformat any List?

推荐答案

在dart_style的FAQ中对这种情况进行了说明，其中dartfmt基于以下内容：

This scenario is described in the FAQ of dart_style which dartfmt is based on:

https://github.com/dart-lang/dart_style/wiki/FAQ#why-does-the-formatter-mess-up-my-collection -literals

简而言之，您只需要在矩阵定义中的某处添加注释，例如：

In short, you just need to add a comment somewhere in you matrix definition like:

const ColorFilter sepia = ColorFilter.matrix(<double>[
          0.393, 0.769, 0.189, 0, 0, //
          0.349, 0.686, 0.168, 0, 0,
          0.272, 0.534, 0.131, 0, 0,
          0,     0,     0,     1, 0,
        ]);

然后dartfmt将不会尝试在矩阵中设置换行符的格式。但是，它将仍然修复不需要的空格，因此它将使您的示例变为：

Then dartfmt will not try to format the newlines in the matrix. It will however, still fixes non-needed spaces so it will make your example into:

const ColorFilter sepia = ColorFilter.matrix(<double>[
  0.393, 0.769, 0.189, 0, 0, //
  0.349, 0.686, 0.168, 0, 0,
  0.272, 0.534, 0.131, 0, 0,
  0, 0, 0, 1, 0,
]);

可以通过将0更改为0.000来固定：

Which can be fixed by changing the 0 to 0.000:

const ColorFilter sepia = ColorFilter.matrix(<double>[
  0.393, 0.769, 0.189, 0, 0, //
  0.349, 0.686, 0.168, 0, 0,
  0.272, 0.534, 0.131, 0, 0,
  0.000, 0.000, 0.000, 1, 0,
]);

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