commit https://github.com/vim/vim/commit/2932359000b2f918d5fade79ea4d124d5943cd07 Author: Bram Moolenaar <Bram@vim.org> Date: Sun Jul 24 22:04:11 2016 +0200 patch 7.4.2101 Problem: Looping over windows, buffers and tab pages is inconsistant. Solution: Use FOR_ALL_ macros everywhere. (Yegappan Lakshmanan)

/* if_ruby.c */
int ruby_enabled(int verbose);
void ruby_end(void);
void ex_ruby(exarg_T *eap);
void ex_rubydo(exarg_T *eap);
void ex_rubyfile(exarg_T *eap);
void ruby_buffer_free(buf_T *buf);
void ruby_window_free(win_T *win);
void vim_ruby_init(void *stack_start);
/* vim: set ft=c : */