Vim indentation for c++ templates?

Question

Does anyone have or know about vim plugin/macro/function that indents nicely c++ templates?

When I highlight template definition in vim .hpp/.h file and indent it with \

Answer 1

You can use the identexpr option to specify indent by evaluating an expression (i.e. writing a vim script function). This function should accept a string -- the line -- and return the number of spaces to indent. This gives you the flexibility to return an indent level for this template condition, or fall-back to autoindent, smartindent or cindent in normal, C-like situations.

Here is an example that was created to handle the signals and slots extension of Qt. It demonstrates fall-back to the cindent function.