google style guide script or tool [closed]

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Is there a script or tool that changes a code's style to google style not completely at least partially (maybe just syntax format开发者_StackOverflowting)? We are reusing some of our C++ legacy code which is not formatted by google style standards and even just formatting it syntactically would take a few hours for a developer.

For now, we wrote some regular expressions that search and replace some basic style

Thanks

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Your best bet would be AStyle, however as you said this only does "syntax formatting":

Artistic Style is a source code indenter, formatter, and beautifier for the C, C++, C# and Java programming languages.