diff --git a/src/proto/eval.pro b/src/proto/eval.pro
index 55bb718..1724c0e 100644
--- a/src/proto/eval.pro
+++ b/src/proto/eval.pro
@@ -1,4 +1,6 @@
 /* eval.c */
+varnumber_T num_divide(varnumber_T n1, varnumber_T n2);
+varnumber_T num_modulus(varnumber_T n1, varnumber_T n2);
 void eval_init(void);
 void eval_clear(void);
 void set_internal_string_var(char_u *name, char_u *value);
@@ -17,6 +19,10 @@
 char_u *eval_to_string(char_u *arg, char_u **nextcmd, int convert);
 char_u *eval_to_string_safe(char_u *arg, char_u **nextcmd, int use_sandbox);
 varnumber_T eval_to_number(char_u *expr);
+void list_vim_vars(int *first);
+void list_script_vars(int *first);
+int is_vimvarht(hashtab_T *ht);
+int is_compatht(hashtab_T *ht);
 void prepare_vimvar(int idx, typval_T *save_tv);
 void restore_vimvar(int idx, typval_T *save_tv);
 list_T *eval_spell_expr(char_u *badword, char_u *expr);
@@ -27,18 +33,13 @@
 void *call_func_retstr(char_u *func, int argc, typval_T *argv);
 void *call_func_retlist(char_u *func, int argc, typval_T *argv);
 int eval_foldexpr(char_u *arg, int *cp);
-void ex_let(exarg_T *eap);
-void ex_const(exarg_T *eap);
-void list_hashtable_vars(hashtab_T *ht, char *prefix, int empty, int *first);
 char_u *get_lval(char_u *name, typval_T *rettv, lval_T *lp, int unlet, int skip, int flags, int fne_flags);
 void clear_lval(lval_T *lp);
+void set_var_lval(lval_T *lp, char_u *endp, typval_T *rettv, int copy, int is_const, char_u *op);
 void *eval_for_line(char_u *arg, int *errp, char_u **nextcmdp, int skip);
 int next_for_item(void *fi_void, char_u *arg);
 void free_for_info(void *fi_void);
 void set_context_for_expression(expand_T *xp, char_u *arg, cmdidx_T cmdidx);
-void ex_unlet(exarg_T *eap);
-void ex_lockvar(exarg_T *eap);
-int do_unlet(char_u *name, int forceit);
 void del_menutrans_vars(void);
 char_u *get_user_var_name(expand_T *xp, int idx);
 int pattern_match(char_u *pat, char_u *text, int ic);
@@ -62,7 +63,9 @@
 int string2float(char_u *text, float_T *value);
 pos_T *var2fpos(typval_T *varp, int dollar_lnum, int *fnum);
 int list2fpos(typval_T *arg, pos_T *posp, int *fnump, colnr_T *curswantp);
+int get_env_len(char_u **arg);
 int get_id_len(char_u **arg);
+int get_name_len(char_u **arg, char_u **alias, int evaluate, int verbose);
 char_u *find_name_end(char_u *arg, char_u **expr_start, char_u **expr_end, int flags);
 int eval_isnamec(int c);
 int eval_isnamec1(int c);
@@ -98,18 +101,9 @@
 dictitem_T *find_var(char_u *name, hashtab_T **htp, int no_autoload);
 dictitem_T *find_var_in_ht(hashtab_T *ht, int htname, char_u *varname, int no_autoload);
 hashtab_T *find_var_ht(char_u *name, char_u **varname);
-char_u *get_var_value(char_u *name);
 void new_script_vars(scid_T id);
 void init_var_dict(dict_T *dict, dictitem_T *dict_var, int scope);
 void unref_var_dict(dict_T *dict);
-void vars_clear(hashtab_T *ht);
-void vars_clear_ext(hashtab_T *ht, int free_val);
-void set_var(char_u *name, typval_T *tv, int copy);
-int var_check_ro(int flags, char_u *name, int use_gettext);
-int var_check_fixed(int flags, char_u *name, int use_gettext);
-int var_check_func_name(char_u *name, int new_var);
-int var_check_lock(int lock, char_u *name, int use_gettext);
-int valid_varname(char_u *varname);
 void copy_tv(typval_T *from, typval_T *to);
 int item_copy(typval_T *from, typval_T *to, int deep, int copyID);
 void get_user_input(typval_T *argvars, typval_T *rettv, int inputdialog, int secret);
@@ -119,8 +113,7 @@
 win_T *find_win_by_nr(typval_T *vp, tabpage_T *tp);
 win_T *find_win_by_nr_or_id(typval_T *vp);
 win_T *find_tabwin(typval_T *wvp, typval_T *tvp, tabpage_T **ptp);
-void getwinvar(typval_T *argvars, typval_T *rettv, int off);
-void setwinvar(typval_T *argvars, typval_T *rettv, int off);
+char_u *find_option_end(char_u **arg, int *opt_flags);
 char_u *autoload_name(char_u *name);
 int script_autoload(char_u *name, int reload);
 void last_set_msg(sctx_T script_ctx);
@@ -128,7 +121,6 @@
 void assert_error(garray_T *gap);
 int typval_compare(typval_T *typ1, typval_T *typ2, exptype_T type, int type_is, int ic);
 char_u *typval_tostring(typval_T *arg);
-int var_exists(char_u *var);
 int modify_fname(char_u *src, int tilde_file, int *usedlen, char_u **fnamep, char_u **bufp, int *fnamelen);
 char_u *do_string_sub(char_u *str, char_u *pat, char_u *sub, typval_T *expr, char_u *flags);
 void filter_map(typval_T *argvars, typval_T *rettv, int map);