I've just posted syntax highlighting files for ASL, Kconfig and devicetree.cb for a few editors if anyone wants to try them out.
vim: ASL - https://github.com/martinlroth/vim-acpi-asl devicetree.cb - https://github.com/martinlroth/vim-devicetree Kconfig is alredy supported in vim.
atom: ASL - not done yet devicetree.cb - https://github.com/martinlroth/language-devicetree Kconfig - https://github.com/martinlroth/language-kconfig
Ultraedit: ASL - https://github.com/martinlroth/wordfiles/blob/master/acpi.uew devicetree.cb - https://github.com/martinlroth/wordfiles/blob/master/devicetree_cb.uew Kconfig - https://github.com/martinlroth/wordfiles/blob/master/kconfig.uew
If there's interest in syntax highlighting for other editors,, let me know, and I'll see what I can do.
Martin