patch 8.0.0623: error for invalid regexp is not very informative commit https://github.com/vim/vim/commit/966e58e413ffa88af8d748e697aa2999571fcd7b Author: Bram Moolenaar <Bram@vim.org> Date: Mon Jun 5 16:54:08 2017 +0200 patch 8.0.0623: error for invalid regexp is not very informative Problem: The message "Invalid range" is used for multiple errors. Solution: Add two more specific error messages. (Itchyny, Ken Hamada)

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refer to the Farsi help file by typing ":help farsi" in Vim.