viper-set-syntax-preference
viper-set-syntax-preference is an interactive compiled Lisp function in `viper-util.el
'.
(viper-set-syntax-preference &optional SYMBOL VALUE)
Set Viper syntax preference.
If called interactively or if SYMBOL is nil, sets syntax preference in current
buffer. If called non-interactively, preferably via the customization widget,
sets the default value.