Manual:$wgExternalDiffEngine/zh

细节
要使用的外部差异引擎的名称，或设置为false以使用内部引擎.

可能的值：


 * - 如果可用的话，使用，否则使用PHP实现.
 * - 作为PHP/HHVM模块实现的维基媒体的快速差分引擎.
 * - 被视为false，以向后兼容.
 * 任何其他字符串都被视为外部差异可执行文件的路径.

The external engine should return HTML for a table row containing four columns (two 'marker/content' pairs). These can be collapsed into one for diff formats that don't require columns, e.g.

此设置代替了.

Example
To display diffs in the format of the common GNU  program, it is necessary to wrap that executable in a small script such as the following. This is needed both to get the required HTML wrapper, and also because  returns non-zero when inputs don't match (which they generally don't for wiki changes).


 * externaldiff.sh
 * LocalSettings.php