diff --git a/cl/extern.h b/cl/extern.h
new file mode 100644
index 000000000000..7b01ccd3f8cf
--- /dev/null
+++ b/cl/extern.h
@@ -0,0 +1,31 @@
+int cl_waddstr(SCR *, const CHAR_T *, size_t);
+int cl_addstr(SCR *, const char *, size_t);
+int cl_attr(SCR *, scr_attr_t, int);
+int cl_baud(SCR *, u_long *);
+int cl_bell(SCR *);
+int cl_clrtoeol(SCR *);
+int cl_cursor(SCR *, size_t *, size_t *);
+int cl_deleteln(SCR *);
+int cl_discard(SCR *, SCR **);
+int cl_ex_adjust(SCR *, exadj_t);
+int cl_insertln(SCR *);
+int cl_keyval(SCR *, scr_keyval_t, CHAR_T *, int *);
+int cl_move(SCR *, size_t, size_t);
+int cl_refresh(SCR *, int);
+int cl_rename(SCR *, char *, int);
+void cl_setname(GS *, char *);
+int cl_split(SCR *, SCR *);
+int cl_suspend(SCR *, int *);
+void cl_usage(void);
+int sig_init(GS *, SCR *);
+int cl_event(SCR *, EVENT *, u_int32_t, int);
+int cl_screen(SCR *, u_int32_t);
+int cl_quit(GS *);
+int cl_getcap(SCR *, char *, char **);
+int cl_term_init(SCR *);
+int cl_term_end(GS *);
+int cl_fmap(SCR *, seq_t, CHAR_T *, size_t, CHAR_T *, size_t);
+int cl_optchange(SCR *, int, char *, u_long *);
+int cl_omesg(SCR *, CL_PRIVATE *, int);
+int cl_ssize(SCR *, int, size_t *, size_t *, int *);
+int cl_putchar(int);
diff --git a/common/extern.h b/common/extern.h
new file mode 100644
index 000000000000..c887696080de
--- /dev/null
+++ b/common/extern.h
@@ -0,0 +1,131 @@
+char * codeset(void);
+void conv_init(SCR *, SCR *);
+int conv_enc(SCR *, int, char *);
+void conv_end(SCR *);
+int cut(SCR *, CHAR_T *, MARK *, MARK *, int);
+int cut_line(SCR *, recno_t, size_t, size_t, CB *);
+void cut_close(GS *);
+TEXT *text_init(SCR *, const CHAR_T *, size_t, size_t);
+void text_lfree(TEXTH *);
+void text_free(TEXT *);
+int del(SCR *, MARK *, MARK *, int);
+int looks_utf8(const char *, size_t);
+int looks_utf16(const char *, size_t);
+int decode_utf8(const char *);
+int decode_utf16(const char *, int);
+FREF *file_add(SCR *, char *);
+int file_init(SCR *, FREF *, char *, int);
+int file_end(SCR *, EXF *, int);
+int file_write(SCR *, MARK *, MARK *, char *, int);
+int file_m1(SCR *, int, int);
+int file_m2(SCR *, int);
+int file_m3(SCR *, int);
+int file_aw(SCR *, int);
+void set_alt_name(SCR *, char *);
+lockr_t file_lock(SCR *, char *, int, int);
+int v_key_init(SCR *);
+void v_key_ilookup(SCR *);
+size_t v_key_len(SCR *, ARG_CHAR_T);
+char *v_key_name(SCR *, ARG_CHAR_T);
+e_key_t v_key_val(SCR *, ARG_CHAR_T);
+int v_event_push(SCR *, EVENT *, CHAR_T *, size_t, u_int);
+int v_event_get(SCR *, EVENT *, int, u_int32_t);
+void v_event_err(SCR *, EVENT *);
+int v_event_flush(SCR *, u_int);
+int db_eget(SCR *, recno_t, CHAR_T **, size_t *, int *);
+int db_get(SCR *, recno_t, u_int32_t, CHAR_T **, size_t *);
+int db_delete(SCR *, recno_t);
+int db_append(SCR *, int, recno_t, CHAR_T *, size_t);
+int db_insert(SCR *, recno_t, CHAR_T *, size_t);
+int db_set(SCR *, recno_t, CHAR_T *, size_t);
+int db_exist(SCR *, recno_t);
+int db_last(SCR *, recno_t *);
+int db_rget(SCR *, recno_t, char **, size_t *);
+int db_rset(SCR *, recno_t, char *, size_t);
+void db_err(SCR *, recno_t);
+int log_init(SCR *, EXF *);
+int log_end(SCR *, EXF *);
+int log_cursor(SCR *);
+int log_line(SCR *, recno_t, u_int);
+int log_mark(SCR *, LMARK *);
+int log_backward(SCR *, MARK *);
+int log_setline(SCR *);
+int log_forward(SCR *, MARK *);
+int editor(GS *, int, char *[]);
+void v_end(GS *);
+int mark_init(SCR *, EXF *);
+int mark_end(SCR *, EXF *);
+int mark_get(SCR *, ARG_CHAR_T, MARK *, mtype_t);
+int mark_set(SCR *, ARG_CHAR_T, MARK *, int);
+int mark_insdel(SCR *, lnop_t, recno_t);
+void msgq(SCR *, mtype_t, const char *, ...);
+void msgq_wstr(SCR *, mtype_t, const CHAR_T *, const char *);
+void msgq_str(SCR *, mtype_t, const char *, const char *);
+void mod_rpt(SCR *);
+void msgq_status(SCR *, recno_t, u_int);
+int msg_open(SCR *, char *);
+void msg_close(GS *);
+const char *msg_cmsg(SCR *, cmsg_t, size_t *);
+const char *msg_cat(SCR *, const char *, size_t *);
+char *msg_print(SCR *, const char *, int *);
+int opts_init(SCR *, int *);
+int opts_set(SCR *, ARGS *[], char *);
+int o_set(SCR *, int, u_int, char *, u_long);
+int opts_empty(SCR *, int, int);
+void opts_dump(SCR *, enum optdisp);
+int opts_save(SCR *, FILE *);
+OPTLIST const *opts_search(CHAR_T *);
+void opts_nomatch(SCR *, CHAR_T *);
+int opts_copy(SCR *, SCR *);
+void opts_free(SCR *);
+int f_altwerase(SCR *, OPTION *, char *, u_long *);
+int f_columns(SCR *, OPTION *, char *, u_long *);
+int f_lines(SCR *, OPTION *, char *, u_long *);
+int f_lisp(SCR *, OPTION *, char *, u_long *);
+int f_msgcat(SCR *, OPTION *, char *, u_long *);
+int f_print(SCR *, OPTION *, char *, u_long *);
+int f_readonly(SCR *, OPTION *, char *, u_long *);
+int f_recompile(SCR *, OPTION *, char *, u_long *);
+int f_reformat(SCR *, OPTION *, char *, u_long *);
+int f_ttywerase(SCR *, OPTION *, char *, u_long *);
+int f_w300(SCR *, OPTION *, char *, u_long *);
+int f_w1200(SCR *, OPTION *, char *, u_long *);
+int f_w9600(SCR *, OPTION *, char *, u_long *);
+int f_window(SCR *, OPTION *, char *, u_long *);
+int f_encoding(SCR *, OPTION *, char *, u_long *);
+int put(SCR *, CB *, CHAR_T *, MARK *, MARK *, int);
+int rcv_tmp(SCR *, EXF *, char *);
+int rcv_init(SCR *);
+int rcv_sync(SCR *, u_int);
+int rcv_list(SCR *);
+int rcv_read(SCR *, FREF *);
+int screen_init(GS *, SCR *, SCR **);
+int screen_end(SCR *);
+SCR *screen_next(SCR *);
+int f_search(SCR *,
+   MARK *, MARK *, CHAR_T *, size_t, CHAR_T **, u_int);
+int b_search(SCR *,
+   MARK *, MARK *, CHAR_T *, size_t, CHAR_T **, u_int);
+void search_busy(SCR *, busy_t);
+int seq_set(SCR *, CHAR_T *,
+   size_t, CHAR_T *, size_t, CHAR_T *, size_t, seq_t, int);
+int seq_delete(SCR *, CHAR_T *, size_t, seq_t);
+int seq_free(SEQ *);
+SEQ *seq_find
+  (SCR *, SEQ **, EVENT *, CHAR_T *, size_t, seq_t, int *);
+void seq_close(GS *);
+int seq_dump(SCR *, seq_t, int);
+int seq_save(SCR *, FILE *, char *, seq_t);
+int e_memcmp(CHAR_T *, EVENT *, size_t);
+void *binc(SCR *, void *, size_t *, size_t);
+int nonblank(SCR *, recno_t, size_t *);
+char *join(char *, char *);
+char *expanduser(char *);
+char *quote(char *);
+char *v_strdup(SCR *, const char *, size_t);
+CHAR_T *v_wstrdup(SCR *, const CHAR_T *, size_t);
+enum nresult nget_uslong(u_long *, const CHAR_T *, CHAR_T **, int);
+enum nresult nget_slong(long *, const CHAR_T *, CHAR_T **, int);
+void timepoint_steady(struct timespec *);
+void timepoint_system(struct timespec *);
+void TRACE(SCR *, const char *, ...);
diff --git a/common/options_def.h b/common/options_def.h
new file mode 100644
index 000000000000..54dd6c20c891
--- /dev/null
+++ b/common/options_def.h
@@ -0,0 +1,84 @@
+#define O_ALTWERASE 0
+#define O_AUTOINDENT 1
+#define O_AUTOPRINT 2
+#define O_AUTOWRITE 3
+#define O_BACKUP 4
+#define O_BEAUTIFY 5
+#define O_CDPATH 6
+#define O_CEDIT 7
+#define O_COLUMNS 8
+#define O_COMBINED 9
+#define O_COMMENT 10
+#define O_TMPDIR 11
+#define O_EDCOMPATIBLE 12
+#define O_ERRORBELLS 13
+#define O_ESCAPETIME 14
+#define O_EXPANDTAB 15
+#define O_EXRC 16
+#define O_EXTENDED 17
+#define O_FILEC 18
+#define O_FILEENCODING 19
+#define O_FLASH 20
+#define O_HARDTABS 21
+#define O_ICLOWER 22
+#define O_IGNORECASE 23
+#define O_INPUTENCODING 24
+#define O_KEYTIME 25
+#define O_LEFTRIGHT 26
+#define O_LINES 27
+#define O_LISP 28
+#define O_LIST 29
+#define O_LOCKFILES 30
+#define O_MAGIC 31
+#define O_MATCHCHARS 32
+#define O_MATCHTIME 33
+#define O_MESG 34
+#define O_MODELINE 35
+#define O_MSGCAT 36
+#define O_NOPRINT 37
+#define O_NUMBER 38
+#define O_OCTAL 39
+#define O_OPEN 40
+#define O_OPTIMIZE 41
+#define O_PARAGRAPHS 42
+#define O_PATH 43
+#define O_PRINT 44
+#define O_PROMPT 45
+#define O_READONLY 46
+#define O_RECDIR 47
+#define O_REDRAW 48
+#define O_REMAP 49
+#define O_REPORT 50
+#define O_RULER 51
+#define O_SCROLL 52
+#define O_SEARCHINCR 53
+#define O_SECTIONS 54
+#define O_SECURE 55
+#define O_SHELL 56
+#define O_SHELLMETA 57
+#define O_SHIFTWIDTH 58
+#define O_SHOWMATCH 59
+#define O_SHOWMODE 60
+#define O_SIDESCROLL 61
+#define O_SLOWOPEN 62
+#define O_SOURCEANY 63
+#define O_TABSTOP 64
+#define O_TAGLENGTH 65
+#define O_TAGS 66
+#define O_TERM 67
+#define O_TERSE 68
+#define O_TILDEOP 69
+#define O_TIMEOUT 70
+#define O_TTYWERASE 71
+#define O_VERBOSE 72
+#define O_W1200 73
+#define O_W300 74
+#define O_W9600 75
+#define O_WARN 76
+#define O_WINDOW 77
+#define O_WINDOWNAME 78
+#define O_WRAPLEN 79
+#define O_WRAPMARGIN 80
+#define O_WRAPSCAN 81
+#define O_WRITEANY 82
+#define O_OPTIONCOUNT 83
diff --git a/ex/ex_def.h b/ex/ex_def.h
new file mode 100644
index 000000000000..7afb7b19d677
--- /dev/null
+++ b/ex/ex_def.h
@@ -0,0 +1,76 @@
+#define C_SCROLL 0
+#define C_BANG 1
+#define C_HASH 2
+#define C_SUBAGAIN 3
+#define C_STAR 4
+#define C_SHIFTL 5
+#define C_EQUAL 6
+#define C_SHIFTR 7
+#define C_AT 8
+#define C_APPEND 9
+#define C_ABBR 10
+#define C_ARGS 11
+#define C_BG 12
+#define C_CHANGE 13
+#define C_CD 14
+#define C_CHDIR 15
+#define C_COPY 16
+#define C_CSCOPE 17
+#define C_DELETE 18
+#define C_DISPLAY 19
+#define C_EDIT 20
+#define C_EX 21
+#define C_EXUSAGE 22
+#define C_FILE 23
+#define C_FG 24
+#define C_GLOBAL 25
+#define C_HELP 26
+#define C_INSERT 27
+#define C_JOIN 28
+#define C_K 29
+#define C_LIST 30
+#define C_MOVE 31
+#define C_MARK 32
+#define C_MAP 33
+#define C_MKEXRC 34
+#define C_NEXT 35
+#define C_NUMBER 36
+#define C_OPEN 37
+#define C_PRINT 38
+#define C_PRESERVE 39
+#define C_PREVIOUS 40
+#define C_PUT 41
+#define C_QUIT 42
+#define C_READ 43
+#define C_RECOVER 44
+#define C_RESIZE 45
+#define C_REWIND 46
+#define C_SUBSTITUTE 47
+#define C_SCRIPT 48
+#define C_SET 49
+#define C_SHELL 50
+#define C_SOURCE 51
+#define C_STOP 52
+#define C_SUSPEND 53
+#define C_T 54
+#define C_TAG 55
+#define C_TAGNEXT 56
+#define C_TAGPOP 57
+#define C_TAGPREV 58
+#define C_TAGTOP 59
+#define C_UNDO 60
+#define C_UNABBREVIATE 61
+#define C_UNMAP 62
+#define C_V 63
+#define C_VERSION 64
+#define C_VISUAL_EX 65
+#define C_VISUAL_VI 66
+#define C_VIUSAGE 67
+#define C_VSPLIT 68
+#define C_WRITE 69
+#define C_WN 70
+#define C_WQ 71
+#define C_XIT 72
+#define C_YANK 73
+#define C_Z 74
+#define C_SUBTILDE 75
diff --git a/ex/extern.h b/ex/extern.h
new file mode 100644
index 000000000000..9d7b1d674c3c
--- /dev/null
+++ b/ex/extern.h
@@ -0,0 +1,131 @@
+int ex(SCR **);
+int ex_cmd(SCR *);
+int ex_range(SCR *, EXCMD *, int *);
+int ex_is_abbrev(CHAR_T *, size_t);
+int ex_is_unmap(CHAR_T *, size_t);
+void ex_badaddr
+  (SCR *, EXCMDLIST const *, enum badaddr, enum nresult);
+int ex_abbr(SCR *, EXCMD *);
+int ex_unabbr(SCR *, EXCMD *);
+int ex_append(SCR *, EXCMD *);
+int ex_change(SCR *, EXCMD *);
+int ex_insert(SCR *, EXCMD *);
+int ex_next(SCR *, EXCMD *);
+int ex_prev(SCR *, EXCMD *);
+int ex_rew(SCR *, EXCMD *);
+int ex_args(SCR *, EXCMD *);
+char **ex_buildargv(SCR *, EXCMD *, char *);
+int argv_init(SCR *, EXCMD *);
+int argv_exp0(SCR *, EXCMD *, CHAR_T *, size_t);
+int argv_exp1(SCR *, EXCMD *, CHAR_T *, size_t, int);
+int argv_exp2(SCR *, EXCMD *, CHAR_T *, size_t);
+int argv_exp3(SCR *, EXCMD *, CHAR_T *, size_t);
+int argv_flt_ex(SCR *, EXCMD *, CHAR_T *, size_t);
+int argv_free(SCR *);
+int argv_flt_path(SCR *, EXCMD *, CHAR_T *, size_t);
+CHAR_T *argv_esc(SCR *, EXCMD *, CHAR_T *, size_t);
+CHAR_T *argv_uesc(SCR *, EXCMD *, CHAR_T *, size_t);
+int ex_at(SCR *, EXCMD *);
+int ex_bang(SCR *, EXCMD *);
+int ex_cd(SCR *, EXCMD *);
+int ex_cscope(SCR *, EXCMD *);
+int cscope_end(SCR *);
+int cscope_display(SCR *);
+int cscope_search(SCR *, TAGQ *, TAG *);
+int ex_delete(SCR *, EXCMD *);
+int ex_display(SCR *, EXCMD *);
+int ex_edit(SCR *, EXCMD *);
+int ex_equal(SCR *, EXCMD *);
+int ex_file(SCR *, EXCMD *);
+int ex_filter(SCR *, 
+   EXCMD *, MARK *, MARK *, MARK *, CHAR_T *, enum filtertype);
+int ex_global(SCR *, EXCMD *);
+int ex_v(SCR *, EXCMD *);
+int ex_g_insdel(SCR *, lnop_t, recno_t);
+int ex_screen_copy(SCR *, SCR *);
+int ex_screen_end(SCR *);
+int ex_optchange(SCR *, int, char *, u_long *);
+int ex_exrc(SCR *);
+int ex_run_str(SCR *, char *, CHAR_T *, size_t, int, int);
+int ex_join(SCR *, EXCMD *);
+int ex_map(SCR *, EXCMD *);
+int ex_unmap(SCR *, EXCMD *);
+int ex_mark(SCR *, EXCMD *);
+int ex_mkexrc(SCR *, EXCMD *);
+int ex_copy(SCR *, EXCMD *);
+int ex_move(SCR *, EXCMD *);
+int ex_open(SCR *, EXCMD *);
+int ex_preserve(SCR *, EXCMD *);
+int ex_recover(SCR *, EXCMD *);
+int ex_list(SCR *, EXCMD *);
+int ex_number(SCR *, EXCMD *);
+int ex_pr(SCR *, EXCMD *);
+int ex_print(SCR *, EXCMD *, MARK *, MARK *, u_int32_t);
+int ex_ldisplay(SCR *, const CHAR_T *, size_t, size_t, u_int);
+int ex_scprint(SCR *, MARK *, MARK *);
+int ex_printf(SCR *, const char *, ...);
+int ex_puts(SCR *, const char *);
+int ex_fflush(SCR *sp);
+int ex_put(SCR *, EXCMD *);
+int ex_quit(SCR *, EXCMD *);
+int ex_read(SCR *, EXCMD *);
+int ex_readfp(SCR *, char *, FILE *, MARK *, recno_t *, int);
+int ex_bg(SCR *, EXCMD *);
+int ex_fg(SCR *, EXCMD *);
+int ex_resize(SCR *, EXCMD *);
+int ex_sdisplay(SCR *);
+int ex_script(SCR *, EXCMD *);
+int sscr_exec(SCR *, recno_t);
+int sscr_input(SCR *);
+int sscr_end(SCR *);
+int ex_set(SCR *, EXCMD *);
+int ex_shell(SCR *, EXCMD *);
+int ex_exec_proc(SCR *, EXCMD *, char *, const char *, int);
+int proc_wait(SCR *, long, const char *, int, int);
+int ex_shiftl(SCR *, EXCMD *);
+int ex_shiftr(SCR *, EXCMD *);
+int ex_retab(SCR *, EXCMD *);
+int ex_source(SCR *, EXCMD *);
+int ex_stop(SCR *, EXCMD *);
+int ex_s(SCR *, EXCMD *);
+int ex_subagain(SCR *, EXCMD *);
+int ex_subtilde(SCR *, EXCMD *);
+int re_compile(SCR *,
+    CHAR_T *, size_t, CHAR_T **, size_t *, regex_t *, u_int);
+void re_error(SCR *, int, regex_t *);
+int ex_tag_first(SCR *, CHAR_T *);
+int ex_tag_push(SCR *, EXCMD *);
+int ex_tag_next(SCR *, EXCMD *);
+int ex_tag_prev(SCR *, EXCMD *);
+int ex_tag_nswitch(SCR *, TAG *, int);
+int ex_tag_Nswitch(SCR *, TAG *, int);
+int ex_tag_pop(SCR *, EXCMD *);
+int ex_tag_top(SCR *, EXCMD *);
+int ex_tag_display(SCR *);
+int ex_tag_copy(SCR *, SCR *);
+int tagq_free(SCR *, TAGQ *);
+int tagq_push(SCR*, TAGQ*, int, int );
+void tag_msg(SCR *, tagmsg_t, char *);
+int ex_tagf_alloc(SCR *, char *);
+int ex_tag_free(SCR *);
+int ex_txt(SCR *, TEXTH *, ARG_CHAR_T, u_int32_t);
+int ex_undo(SCR *, EXCMD *);
+int ex_help(SCR *, EXCMD *);
+int ex_usage(SCR *, EXCMD *);
+int ex_viusage(SCR *, EXCMD *);
+void ex_cinit(SCR *, EXCMD *, int, int, recno_t, recno_t, int);
+int ex_getline(SCR *, FILE *, size_t *);
+int ex_ncheck(SCR *, int);
+int ex_init(SCR *);
+void ex_wemsg(SCR *, CHAR_T *, exm_t);
+void ex_emsg(SCR *, char *, exm_t);
+int ex_version(SCR *, EXCMD *);
+int ex_visual(SCR *, EXCMD *);
+int ex_wn(SCR *, EXCMD *);
+int ex_wq(SCR *, EXCMD *);
+int ex_write(SCR *, EXCMD *);
+int ex_xit(SCR *, EXCMD *);
+int ex_writefp(SCR *,
+   char *, FILE *, MARK *, MARK *, u_long *, u_long *, int);
+int ex_yank(SCR *, EXCMD *);
+int ex_z(SCR *, EXCMD *);
diff --git a/ex/version.h b/ex/version.h
new file mode 100644
index 000000000000..742b145ebd3f
--- /dev/null
+++ b/ex/version.h
@@ -0,0 +1 @@
+#define VI_VERSION "2.2.0 (2020-08-01)"
diff --git a/vi/extern.h b/vi/extern.h
new file mode 100644
index 000000000000..8e145c6318ef
--- /dev/null
+++ b/vi/extern.h
@@ -0,0 +1,145 @@
+int cs_init(SCR *, VCS *);
+int cs_next(SCR *, VCS *);
+int cs_fspace(SCR *, VCS *);
+int cs_fblank(SCR *, VCS *);
+int cs_prev(SCR *, VCS *);
+int cs_bblank(SCR *, VCS *);
+int v_at(SCR *, VICMD *);
+int v_chrepeat(SCR *, VICMD *);
+int v_chrrepeat(SCR *, VICMD *);
+int v_cht(SCR *, VICMD *);
+int v_chf(SCR *, VICMD *);
+int v_chT(SCR *, VICMD *);
+int v_chF(SCR *, VICMD *);
+int v_delete(SCR *, VICMD *);
+int v_again(SCR *, VICMD *);
+int v_exmode(SCR *, VICMD *);
+int v_join(SCR *, VICMD *);
+int v_shiftl(SCR *, VICMD *);
+int v_shiftr(SCR *, VICMD *);
+int v_suspend(SCR *, VICMD *);
+int v_switch(SCR *, VICMD *);
+int v_tagpush(SCR *, VICMD *);
+int v_tagpop(SCR *, VICMD *);
+int v_filter(SCR *, VICMD *);
+int v_ex(SCR *, VICMD *);
+int v_ecl_exec(SCR *);
+int v_increment(SCR *, VICMD *);
+int v_screen_copy(SCR *, SCR *);
+int v_screen_end(SCR *);
+int v_optchange(SCR *, int, char *, u_long *);
+int v_iA(SCR *, VICMD *);
+int v_ia(SCR *, VICMD *);
+int v_iI(SCR *, VICMD *);
+int v_ii(SCR *, VICMD *);
+int v_iO(SCR *, VICMD *);
+int v_io(SCR *, VICMD *);
+int v_change(SCR *, VICMD *);
+int v_Replace(SCR *, VICMD *);
+int v_subst(SCR *, VICMD *);
+int v_left(SCR *, VICMD *);
+int v_cfirst(SCR *, VICMD *);
+int v_first(SCR *, VICMD *);
+int v_ncol(SCR *, VICMD *);
+int v_zero(SCR *, VICMD *);
+int v_mark(SCR *, VICMD *);
+int v_bmark(SCR *, VICMD *);
+int v_fmark(SCR *, VICMD *);
+int v_emark(SCR *, VICMD *);
+int v_match(SCR *, VICMD *);
+int v_buildmcs(SCR *, char *);
+int v_paragraphf(SCR *, VICMD *);
+int v_paragraphb(SCR *, VICMD *);
+int v_buildps(SCR *, char *, char *);
+int v_Put(SCR *, VICMD *);
+int v_put(SCR *, VICMD *);
+int v_redraw(SCR *, VICMD *);
+int v_replace(SCR *, VICMD *);
+int v_right(SCR *, VICMD *);
+int v_dollar(SCR *, VICMD *);
+int v_screen(SCR *, VICMD *);
+int v_lgoto(SCR *, VICMD *);
+int v_home(SCR *, VICMD *);
+int v_middle(SCR *, VICMD *);
+int v_bottom(SCR *, VICMD *);
+int v_up(SCR *, VICMD *);
+int v_cr(SCR *, VICMD *);
+int v_down(SCR *, VICMD *);
+int v_hpageup(SCR *, VICMD *);
+int v_hpagedown(SCR *, VICMD *);
+int v_pagedown(SCR *, VICMD *);
+int v_pageup(SCR *, VICMD *);
+int v_lineup(SCR *, VICMD *);
+int v_linedown(SCR *, VICMD *);
+int v_searchb(SCR *, VICMD *);
+int v_searchf(SCR *, VICMD *);
+int v_searchN(SCR *, VICMD *);
+int v_searchn(SCR *, VICMD *);
+int v_searchw(SCR *, VICMD *);
+int v_correct(SCR *, VICMD *, int);
+int v_sectionf(SCR *, VICMD *);
+int v_sectionb(SCR *, VICMD *);
+int v_sentencef(SCR *, VICMD *);
+int v_sentenceb(SCR *, VICMD *);
+int v_status(SCR *, VICMD *);
+int v_tcmd(SCR *, VICMD *, ARG_CHAR_T, u_int);
+int v_txt(SCR *, VICMD *, MARK *,
+   const CHAR_T *, size_t, ARG_CHAR_T, recno_t, u_long, u_int32_t);
+int v_txt_auto(SCR *, recno_t, TEXT *, size_t, TEXT *);
+int v_ulcase(SCR *, VICMD *);
+int v_mulcase(SCR *, VICMD *);
+int v_Undo(SCR *, VICMD *);
+int v_undo(SCR *, VICMD *);
+void v_eof(SCR *, MARK *);
+void v_eol(SCR *, MARK *);
+void v_nomove(SCR *);
+void v_sof(SCR *, MARK *);
+void v_sol(SCR *);
+int v_isempty(CHAR_T *, size_t);
+void v_emsg(SCR *, char *, vim_t);
+int v_wordW(SCR *, VICMD *);
+int v_wordw(SCR *, VICMD *);
+int v_wordE(SCR *, VICMD *);
+int v_worde(SCR *, VICMD *);
+int v_wordB(SCR *, VICMD *);
+int v_wordb(SCR *, VICMD *);
+int v_xchar(SCR *, VICMD *);
+int v_Xchar(SCR *, VICMD *);
+int v_yank(SCR *, VICMD *);
+int v_z(SCR *, VICMD *);
+int vs_crel(SCR *, long);
+int v_zexit(SCR *, VICMD *);
+int vi(SCR **);
+int v_curword(SCR *);
+int vs_line(SCR *, SMAP *, size_t *, size_t *);
+int vs_number(SCR *);
+void vs_busy(SCR *, const char *, busy_t);
+void vs_home(SCR *);
+void vs_update(SCR *, const char *, const CHAR_T *);
+void vs_msg(SCR *, mtype_t, char *, size_t);
+int vs_ex_resolve(SCR *, int *);
+int vs_resolve(SCR *, SCR *, int);
+int vs_repaint(SCR *, EVENT *);
+int vs_refresh(SCR *, int);
+int vs_column(SCR *, size_t *);
+size_t vs_screens(SCR *, recno_t, size_t *);
+size_t vs_columns(SCR *, CHAR_T *, recno_t, size_t *, size_t *);
+size_t vs_rcm(SCR *, recno_t, int);
+size_t vs_colpos(SCR *, recno_t, size_t);
+int vs_change(SCR *, recno_t, lnop_t);
+int vs_sm_fill(SCR *, recno_t, pos_t);
+int vs_sm_scroll(SCR *, MARK *, recno_t, scroll_t);
+int vs_sm_1up(SCR *);
+int vs_sm_1down(SCR *);
+int vs_sm_next(SCR *, SMAP *, SMAP *);
+int vs_sm_prev(SCR *, SMAP *, SMAP *);
+int vs_sm_cursor(SCR *, SMAP **);
+int vs_sm_position(SCR *, MARK *, u_long, pos_t);
+recno_t vs_sm_nlines(SCR *, SMAP *, recno_t, size_t);
+int vs_split(SCR *, SCR *, int);
+int vs_vsplit(SCR *, SCR *);
+int vs_discard(SCR *, SCR **);
+int vs_fg(SCR *, SCR **, CHAR_T *, int);
+int vs_bg(SCR *);
+int vs_swap(SCR *, SCR **, char *);
+int vs_resize(SCR *, long, adj_t);