/
evalfunc.c
13419 lines (12205 loc) · 299 KB
/
evalfunc.c
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/* vi:set ts=8 sts=4 sw=4 noet:
*
* VIM - Vi IMproved by Bram Moolenaar
*
* Do ":help uganda" in Vim to read copying and usage conditions.
* Do ":help credits" in Vim to see a list of people who contributed.
* See README.txt for an overview of the Vim source code.
*/
/*
* evalfunc.c: Builtin functions
*/
#define USING_FLOAT_STUFF
#include "vim.h"
#if defined(FEAT_EVAL) || defined(PROTO)
#ifdef AMIGA
# include <time.h> /* for strftime() */
#endif
#ifdef VMS
# include <float.h>
#endif
#ifdef MACOS
# include <time.h> /* for time_t */
#endif
static char *e_listarg = N_("E686: Argument of %s must be a List");
#ifdef FEAT_QUICKFIX
static char *e_stringreq = N_("E928: String required");
#endif
#ifdef FEAT_FLOAT
static void f_abs(typval_T *argvars, typval_T *rettv);
static void f_acos(typval_T *argvars, typval_T *rettv);
#endif
static void f_add(typval_T *argvars, typval_T *rettv);
static void f_and(typval_T *argvars, typval_T *rettv);
static void f_append(typval_T *argvars, typval_T *rettv);
static void f_argc(typval_T *argvars, typval_T *rettv);
static void f_argidx(typval_T *argvars, typval_T *rettv);
static void f_arglistid(typval_T *argvars, typval_T *rettv);
static void f_argv(typval_T *argvars, typval_T *rettv);
static void f_assert_equal(typval_T *argvars, typval_T *rettv);
static void f_assert_exception(typval_T *argvars, typval_T *rettv);
static void f_assert_fails(typval_T *argvars, typval_T *rettv);
static void f_assert_false(typval_T *argvars, typval_T *rettv);
static void f_assert_inrange(typval_T *argvars, typval_T *rettv);
static void f_assert_match(typval_T *argvars, typval_T *rettv);
static void f_assert_notequal(typval_T *argvars, typval_T *rettv);
static void f_assert_notmatch(typval_T *argvars, typval_T *rettv);
static void f_assert_report(typval_T *argvars, typval_T *rettv);
static void f_assert_true(typval_T *argvars, typval_T *rettv);
#ifdef FEAT_FLOAT
static void f_asin(typval_T *argvars, typval_T *rettv);
static void f_atan(typval_T *argvars, typval_T *rettv);
static void f_atan2(typval_T *argvars, typval_T *rettv);
#endif
#ifdef FEAT_BEVAL
static void f_balloon_show(typval_T *argvars, typval_T *rettv);
#endif
static void f_browse(typval_T *argvars, typval_T *rettv);
static void f_browsedir(typval_T *argvars, typval_T *rettv);
static void f_bufexists(typval_T *argvars, typval_T *rettv);
static void f_buflisted(typval_T *argvars, typval_T *rettv);
static void f_bufloaded(typval_T *argvars, typval_T *rettv);
static void f_bufname(typval_T *argvars, typval_T *rettv);
static void f_bufnr(typval_T *argvars, typval_T *rettv);
static void f_bufwinid(typval_T *argvars, typval_T *rettv);
static void f_bufwinnr(typval_T *argvars, typval_T *rettv);
static void f_byte2line(typval_T *argvars, typval_T *rettv);
static void byteidx(typval_T *argvars, typval_T *rettv, int comp);
static void f_byteidx(typval_T *argvars, typval_T *rettv);
static void f_byteidxcomp(typval_T *argvars, typval_T *rettv);
static void f_call(typval_T *argvars, typval_T *rettv);
#ifdef FEAT_FLOAT
static void f_ceil(typval_T *argvars, typval_T *rettv);
#endif
#ifdef FEAT_JOB_CHANNEL
static void f_ch_canread(typval_T *argvars, typval_T *rettv);
static void f_ch_close(typval_T *argvars, typval_T *rettv);
static void f_ch_close_in(typval_T *argvars, typval_T *rettv);
static void f_ch_evalexpr(typval_T *argvars, typval_T *rettv);
static void f_ch_evalraw(typval_T *argvars, typval_T *rettv);
static void f_ch_getbufnr(typval_T *argvars, typval_T *rettv);
static void f_ch_getjob(typval_T *argvars, typval_T *rettv);
static void f_ch_info(typval_T *argvars, typval_T *rettv);
static void f_ch_log(typval_T *argvars, typval_T *rettv);
static void f_ch_logfile(typval_T *argvars, typval_T *rettv);
static void f_ch_open(typval_T *argvars, typval_T *rettv);
static void f_ch_read(typval_T *argvars, typval_T *rettv);
static void f_ch_readraw(typval_T *argvars, typval_T *rettv);
static void f_ch_sendexpr(typval_T *argvars, typval_T *rettv);
static void f_ch_sendraw(typval_T *argvars, typval_T *rettv);
static void f_ch_setoptions(typval_T *argvars, typval_T *rettv);
static void f_ch_status(typval_T *argvars, typval_T *rettv);
#endif
static void f_changenr(typval_T *argvars, typval_T *rettv);
static void f_char2nr(typval_T *argvars, typval_T *rettv);
static void f_cindent(typval_T *argvars, typval_T *rettv);
static void f_clearmatches(typval_T *argvars, typval_T *rettv);
static void f_col(typval_T *argvars, typval_T *rettv);
#if defined(FEAT_INS_EXPAND)
static void f_complete(typval_T *argvars, typval_T *rettv);
static void f_complete_add(typval_T *argvars, typval_T *rettv);
static void f_complete_check(typval_T *argvars, typval_T *rettv);
#endif
static void f_confirm(typval_T *argvars, typval_T *rettv);
static void f_copy(typval_T *argvars, typval_T *rettv);
#ifdef FEAT_FLOAT
static void f_cos(typval_T *argvars, typval_T *rettv);
static void f_cosh(typval_T *argvars, typval_T *rettv);
#endif
static void f_count(typval_T *argvars, typval_T *rettv);
static void f_cscope_connection(typval_T *argvars, typval_T *rettv);
static void f_cursor(typval_T *argsvars, typval_T *rettv);
static void f_deepcopy(typval_T *argvars, typval_T *rettv);
static void f_delete(typval_T *argvars, typval_T *rettv);
static void f_did_filetype(typval_T *argvars, typval_T *rettv);
static void f_diff_filler(typval_T *argvars, typval_T *rettv);
static void f_diff_hlID(typval_T *argvars, typval_T *rettv);
static void f_empty(typval_T *argvars, typval_T *rettv);
static void f_escape(typval_T *argvars, typval_T *rettv);
static void f_eval(typval_T *argvars, typval_T *rettv);
static void f_eventhandler(typval_T *argvars, typval_T *rettv);
static void f_executable(typval_T *argvars, typval_T *rettv);
static void f_execute(typval_T *argvars, typval_T *rettv);
static void f_exepath(typval_T *argvars, typval_T *rettv);
static void f_exists(typval_T *argvars, typval_T *rettv);
#ifdef FEAT_FLOAT
static void f_exp(typval_T *argvars, typval_T *rettv);
#endif
static void f_expand(typval_T *argvars, typval_T *rettv);
static void f_extend(typval_T *argvars, typval_T *rettv);
static void f_feedkeys(typval_T *argvars, typval_T *rettv);
static void f_filereadable(typval_T *argvars, typval_T *rettv);
static void f_filewritable(typval_T *argvars, typval_T *rettv);
static void f_filter(typval_T *argvars, typval_T *rettv);
static void f_finddir(typval_T *argvars, typval_T *rettv);
static void f_findfile(typval_T *argvars, typval_T *rettv);
#ifdef FEAT_FLOAT
static void f_float2nr(typval_T *argvars, typval_T *rettv);
static void f_floor(typval_T *argvars, typval_T *rettv);
static void f_fmod(typval_T *argvars, typval_T *rettv);
#endif
static void f_fnameescape(typval_T *argvars, typval_T *rettv);
static void f_fnamemodify(typval_T *argvars, typval_T *rettv);
static void f_foldclosed(typval_T *argvars, typval_T *rettv);
static void f_foldclosedend(typval_T *argvars, typval_T *rettv);
static void f_foldlevel(typval_T *argvars, typval_T *rettv);
static void f_foldtext(typval_T *argvars, typval_T *rettv);
static void f_foldtextresult(typval_T *argvars, typval_T *rettv);
static void f_foreground(typval_T *argvars, typval_T *rettv);
static void f_funcref(typval_T *argvars, typval_T *rettv);
static void f_function(typval_T *argvars, typval_T *rettv);
static void f_garbagecollect(typval_T *argvars, typval_T *rettv);
static void f_get(typval_T *argvars, typval_T *rettv);
static void f_getbufinfo(typval_T *argvars, typval_T *rettv);
static void f_getbufline(typval_T *argvars, typval_T *rettv);
static void f_getbufvar(typval_T *argvars, typval_T *rettv);
static void f_getchar(typval_T *argvars, typval_T *rettv);
static void f_getcharmod(typval_T *argvars, typval_T *rettv);
static void f_getcharsearch(typval_T *argvars, typval_T *rettv);
static void f_getcmdline(typval_T *argvars, typval_T *rettv);
#if defined(FEAT_CMDL_COMPL)
static void f_getcompletion(typval_T *argvars, typval_T *rettv);
#endif
static void f_getcmdpos(typval_T *argvars, typval_T *rettv);
static void f_getcmdtype(typval_T *argvars, typval_T *rettv);
static void f_getcmdwintype(typval_T *argvars, typval_T *rettv);
static void f_getcwd(typval_T *argvars, typval_T *rettv);
static void f_getfontname(typval_T *argvars, typval_T *rettv);
static void f_getfperm(typval_T *argvars, typval_T *rettv);
static void f_getfsize(typval_T *argvars, typval_T *rettv);
static void f_getftime(typval_T *argvars, typval_T *rettv);
static void f_getftype(typval_T *argvars, typval_T *rettv);
static void f_getline(typval_T *argvars, typval_T *rettv);
static void f_getloclist(typval_T *argvars UNUSED, typval_T *rettv UNUSED);
static void f_getmatches(typval_T *argvars, typval_T *rettv);
static void f_getpid(typval_T *argvars, typval_T *rettv);
static void f_getcurpos(typval_T *argvars, typval_T *rettv);
static void f_getpos(typval_T *argvars, typval_T *rettv);
static void f_getqflist(typval_T *argvars, typval_T *rettv);
static void f_getreg(typval_T *argvars, typval_T *rettv);
static void f_getregtype(typval_T *argvars, typval_T *rettv);
static void f_gettabinfo(typval_T *argvars, typval_T *rettv);
static void f_gettabvar(typval_T *argvars, typval_T *rettv);
static void f_gettabwinvar(typval_T *argvars, typval_T *rettv);
static void f_getwininfo(typval_T *argvars, typval_T *rettv);
static void f_getwinposx(typval_T *argvars, typval_T *rettv);
static void f_getwinposy(typval_T *argvars, typval_T *rettv);
static void f_getwinvar(typval_T *argvars, typval_T *rettv);
static void f_glob(typval_T *argvars, typval_T *rettv);
static void f_globpath(typval_T *argvars, typval_T *rettv);
static void f_glob2regpat(typval_T *argvars, typval_T *rettv);
static void f_has(typval_T *argvars, typval_T *rettv);
static void f_has_key(typval_T *argvars, typval_T *rettv);
static void f_haslocaldir(typval_T *argvars, typval_T *rettv);
static void f_hasmapto(typval_T *argvars, typval_T *rettv);
static void f_histadd(typval_T *argvars, typval_T *rettv);
static void f_histdel(typval_T *argvars, typval_T *rettv);
static void f_histget(typval_T *argvars, typval_T *rettv);
static void f_histnr(typval_T *argvars, typval_T *rettv);
static void f_hlID(typval_T *argvars, typval_T *rettv);
static void f_hlexists(typval_T *argvars, typval_T *rettv);
static void f_hostname(typval_T *argvars, typval_T *rettv);
static void f_iconv(typval_T *argvars, typval_T *rettv);
static void f_indent(typval_T *argvars, typval_T *rettv);
static void f_index(typval_T *argvars, typval_T *rettv);
static void f_input(typval_T *argvars, typval_T *rettv);
static void f_inputdialog(typval_T *argvars, typval_T *rettv);
static void f_inputlist(typval_T *argvars, typval_T *rettv);
static void f_inputrestore(typval_T *argvars, typval_T *rettv);
static void f_inputsave(typval_T *argvars, typval_T *rettv);
static void f_inputsecret(typval_T *argvars, typval_T *rettv);
static void f_insert(typval_T *argvars, typval_T *rettv);
static void f_invert(typval_T *argvars, typval_T *rettv);
static void f_isdirectory(typval_T *argvars, typval_T *rettv);
static void f_islocked(typval_T *argvars, typval_T *rettv);
#if defined(FEAT_FLOAT) && defined(HAVE_MATH_H)
static void f_isnan(typval_T *argvars, typval_T *rettv);
#endif
static void f_items(typval_T *argvars, typval_T *rettv);
#ifdef FEAT_JOB_CHANNEL
static void f_job_getchannel(typval_T *argvars, typval_T *rettv);
static void f_job_info(typval_T *argvars, typval_T *rettv);
static void f_job_setoptions(typval_T *argvars, typval_T *rettv);
static void f_job_start(typval_T *argvars, typval_T *rettv);
static void f_job_stop(typval_T *argvars, typval_T *rettv);
static void f_job_status(typval_T *argvars, typval_T *rettv);
#endif
static void f_join(typval_T *argvars, typval_T *rettv);
static void f_js_decode(typval_T *argvars, typval_T *rettv);
static void f_js_encode(typval_T *argvars, typval_T *rettv);
static void f_json_decode(typval_T *argvars, typval_T *rettv);
static void f_json_encode(typval_T *argvars, typval_T *rettv);
static void f_keys(typval_T *argvars, typval_T *rettv);
static void f_last_buffer_nr(typval_T *argvars, typval_T *rettv);
static void f_len(typval_T *argvars, typval_T *rettv);
static void f_libcall(typval_T *argvars, typval_T *rettv);
static void f_libcallnr(typval_T *argvars, typval_T *rettv);
static void f_line(typval_T *argvars, typval_T *rettv);
static void f_line2byte(typval_T *argvars, typval_T *rettv);
static void f_lispindent(typval_T *argvars, typval_T *rettv);
static void f_localtime(typval_T *argvars, typval_T *rettv);
#ifdef FEAT_FLOAT
static void f_log(typval_T *argvars, typval_T *rettv);
static void f_log10(typval_T *argvars, typval_T *rettv);
#endif
#ifdef FEAT_LUA
static void f_luaeval(typval_T *argvars, typval_T *rettv);
#endif
static void f_map(typval_T *argvars, typval_T *rettv);
static void f_maparg(typval_T *argvars, typval_T *rettv);
static void f_mapcheck(typval_T *argvars, typval_T *rettv);
static void f_match(typval_T *argvars, typval_T *rettv);
static void f_matchadd(typval_T *argvars, typval_T *rettv);
static void f_matchaddpos(typval_T *argvars, typval_T *rettv);
static void f_matcharg(typval_T *argvars, typval_T *rettv);
static void f_matchdelete(typval_T *argvars, typval_T *rettv);
static void f_matchend(typval_T *argvars, typval_T *rettv);
static void f_matchlist(typval_T *argvars, typval_T *rettv);
static void f_matchstr(typval_T *argvars, typval_T *rettv);
static void f_matchstrpos(typval_T *argvars, typval_T *rettv);
static void f_max(typval_T *argvars, typval_T *rettv);
static void f_min(typval_T *argvars, typval_T *rettv);
#ifdef vim_mkdir
static void f_mkdir(typval_T *argvars, typval_T *rettv);
#endif
static void f_mode(typval_T *argvars, typval_T *rettv);
#ifdef FEAT_MZSCHEME
static void f_mzeval(typval_T *argvars, typval_T *rettv);
#endif
static void f_nextnonblank(typval_T *argvars, typval_T *rettv);
static void f_nr2char(typval_T *argvars, typval_T *rettv);
static void f_or(typval_T *argvars, typval_T *rettv);
static void f_pathshorten(typval_T *argvars, typval_T *rettv);
#ifdef FEAT_PERL
static void f_perleval(typval_T *argvars, typval_T *rettv);
#endif
#ifdef FEAT_FLOAT
static void f_pow(typval_T *argvars, typval_T *rettv);
#endif
static void f_prevnonblank(typval_T *argvars, typval_T *rettv);
static void f_printf(typval_T *argvars, typval_T *rettv);
static void f_pumvisible(typval_T *argvars, typval_T *rettv);
#ifdef FEAT_PYTHON3
static void f_py3eval(typval_T *argvars, typval_T *rettv);
#endif
#ifdef FEAT_PYTHON
static void f_pyeval(typval_T *argvars, typval_T *rettv);
#endif
#if defined(FEAT_PYTHON) || defined(FEAT_PYTHON3)
static void f_pyxeval(typval_T *argvars, typval_T *rettv);
#endif
static void f_range(typval_T *argvars, typval_T *rettv);
static void f_readfile(typval_T *argvars, typval_T *rettv);
static void f_reltime(typval_T *argvars, typval_T *rettv);
#ifdef FEAT_FLOAT
static void f_reltimefloat(typval_T *argvars, typval_T *rettv);
#endif
static void f_reltimestr(typval_T *argvars, typval_T *rettv);
static void f_remote_expr(typval_T *argvars, typval_T *rettv);
static void f_remote_foreground(typval_T *argvars, typval_T *rettv);
static void f_remote_peek(typval_T *argvars, typval_T *rettv);
static void f_remote_read(typval_T *argvars, typval_T *rettv);
static void f_remote_send(typval_T *argvars, typval_T *rettv);
static void f_remote_startserver(typval_T *argvars, typval_T *rettv);
static void f_remove(typval_T *argvars, typval_T *rettv);
static void f_rename(typval_T *argvars, typval_T *rettv);
static void f_repeat(typval_T *argvars, typval_T *rettv);
static void f_resolve(typval_T *argvars, typval_T *rettv);
static void f_reverse(typval_T *argvars, typval_T *rettv);
#ifdef FEAT_FLOAT
static void f_round(typval_T *argvars, typval_T *rettv);
#endif
static void f_screenattr(typval_T *argvars, typval_T *rettv);
static void f_screenchar(typval_T *argvars, typval_T *rettv);
static void f_screencol(typval_T *argvars, typval_T *rettv);
static void f_screenrow(typval_T *argvars, typval_T *rettv);
static void f_search(typval_T *argvars, typval_T *rettv);
static void f_searchdecl(typval_T *argvars, typval_T *rettv);
static void f_searchpair(typval_T *argvars, typval_T *rettv);
static void f_searchpairpos(typval_T *argvars, typval_T *rettv);
static void f_searchpos(typval_T *argvars, typval_T *rettv);
static void f_server2client(typval_T *argvars, typval_T *rettv);
static void f_serverlist(typval_T *argvars, typval_T *rettv);
static void f_setbufline(typval_T *argvars, typval_T *rettv);
static void f_setbufvar(typval_T *argvars, typval_T *rettv);
static void f_setcharsearch(typval_T *argvars, typval_T *rettv);
static void f_setcmdpos(typval_T *argvars, typval_T *rettv);
static void f_setfperm(typval_T *argvars, typval_T *rettv);
static void f_setline(typval_T *argvars, typval_T *rettv);
static void f_setloclist(typval_T *argvars, typval_T *rettv);
static void f_setmatches(typval_T *argvars, typval_T *rettv);
static void f_setpos(typval_T *argvars, typval_T *rettv);
static void f_setqflist(typval_T *argvars, typval_T *rettv);
static void f_setreg(typval_T *argvars, typval_T *rettv);
static void f_settabvar(typval_T *argvars, typval_T *rettv);
static void f_settabwinvar(typval_T *argvars, typval_T *rettv);
static void f_setwinvar(typval_T *argvars, typval_T *rettv);
#ifdef FEAT_CRYPT
static void f_sha256(typval_T *argvars, typval_T *rettv);
#endif /* FEAT_CRYPT */
static void f_shellescape(typval_T *argvars, typval_T *rettv);
static void f_shiftwidth(typval_T *argvars, typval_T *rettv);
static void f_simplify(typval_T *argvars, typval_T *rettv);
#ifdef FEAT_FLOAT
static void f_sin(typval_T *argvars, typval_T *rettv);
static void f_sinh(typval_T *argvars, typval_T *rettv);
#endif
static void f_sort(typval_T *argvars, typval_T *rettv);
static void f_soundfold(typval_T *argvars, typval_T *rettv);
static void f_spellbadword(typval_T *argvars, typval_T *rettv);
static void f_spellsuggest(typval_T *argvars, typval_T *rettv);
static void f_split(typval_T *argvars, typval_T *rettv);
#ifdef FEAT_FLOAT
static void f_sqrt(typval_T *argvars, typval_T *rettv);
static void f_str2float(typval_T *argvars, typval_T *rettv);
#endif
static void f_str2nr(typval_T *argvars, typval_T *rettv);
static void f_strchars(typval_T *argvars, typval_T *rettv);
#ifdef HAVE_STRFTIME
static void f_strftime(typval_T *argvars, typval_T *rettv);
#endif
static void f_strgetchar(typval_T *argvars, typval_T *rettv);
static void f_stridx(typval_T *argvars, typval_T *rettv);
static void f_string(typval_T *argvars, typval_T *rettv);
static void f_strlen(typval_T *argvars, typval_T *rettv);
static void f_strcharpart(typval_T *argvars, typval_T *rettv);
static void f_strpart(typval_T *argvars, typval_T *rettv);
static void f_strridx(typval_T *argvars, typval_T *rettv);
static void f_strtrans(typval_T *argvars, typval_T *rettv);
static void f_strdisplaywidth(typval_T *argvars, typval_T *rettv);
static void f_strwidth(typval_T *argvars, typval_T *rettv);
static void f_submatch(typval_T *argvars, typval_T *rettv);
static void f_substitute(typval_T *argvars, typval_T *rettv);
static void f_synID(typval_T *argvars, typval_T *rettv);
static void f_synIDattr(typval_T *argvars, typval_T *rettv);
static void f_synIDtrans(typval_T *argvars, typval_T *rettv);
static void f_synstack(typval_T *argvars, typval_T *rettv);
static void f_synconcealed(typval_T *argvars, typval_T *rettv);
static void f_system(typval_T *argvars, typval_T *rettv);
static void f_systemlist(typval_T *argvars, typval_T *rettv);
static void f_tabpagebuflist(typval_T *argvars, typval_T *rettv);
static void f_tabpagenr(typval_T *argvars, typval_T *rettv);
static void f_tabpagewinnr(typval_T *argvars, typval_T *rettv);
static void f_taglist(typval_T *argvars, typval_T *rettv);
static void f_tagfiles(typval_T *argvars, typval_T *rettv);
static void f_tempname(typval_T *argvars, typval_T *rettv);
static void f_test_alloc_fail(typval_T *argvars, typval_T *rettv);
static void f_test_autochdir(typval_T *argvars, typval_T *rettv);
static void f_test_feedinput(typval_T *argvars, typval_T *rettv);
static void f_test_override(typval_T *argvars, typval_T *rettv);
static void f_test_garbagecollect_now(typval_T *argvars, typval_T *rettv);
static void f_test_ignore_error(typval_T *argvars, typval_T *rettv);
#ifdef FEAT_JOB_CHANNEL
static void f_test_null_channel(typval_T *argvars, typval_T *rettv);
#endif
static void f_test_null_dict(typval_T *argvars, typval_T *rettv);
#ifdef FEAT_JOB_CHANNEL
static void f_test_null_job(typval_T *argvars, typval_T *rettv);
#endif
static void f_test_null_list(typval_T *argvars, typval_T *rettv);
static void f_test_null_partial(typval_T *argvars, typval_T *rettv);
static void f_test_null_string(typval_T *argvars, typval_T *rettv);
static void f_test_settime(typval_T *argvars, typval_T *rettv);
#ifdef FEAT_FLOAT
static void f_tan(typval_T *argvars, typval_T *rettv);
static void f_tanh(typval_T *argvars, typval_T *rettv);
#endif
#ifdef FEAT_TIMERS
static void f_timer_info(typval_T *argvars, typval_T *rettv);
static void f_timer_pause(typval_T *argvars, typval_T *rettv);
static void f_timer_start(typval_T *argvars, typval_T *rettv);
static void f_timer_stop(typval_T *argvars, typval_T *rettv);
static void f_timer_stopall(typval_T *argvars, typval_T *rettv);
#endif
static void f_tolower(typval_T *argvars, typval_T *rettv);
static void f_toupper(typval_T *argvars, typval_T *rettv);
static void f_tr(typval_T *argvars, typval_T *rettv);
#ifdef FEAT_FLOAT
static void f_trunc(typval_T *argvars, typval_T *rettv);
#endif
static void f_type(typval_T *argvars, typval_T *rettv);
static void f_undofile(typval_T *argvars, typval_T *rettv);
static void f_undotree(typval_T *argvars, typval_T *rettv);
static void f_uniq(typval_T *argvars, typval_T *rettv);
static void f_values(typval_T *argvars, typval_T *rettv);
static void f_virtcol(typval_T *argvars, typval_T *rettv);
static void f_visualmode(typval_T *argvars, typval_T *rettv);
static void f_wildmenumode(typval_T *argvars, typval_T *rettv);
static void f_win_findbuf(typval_T *argvars, typval_T *rettv);
static void f_win_getid(typval_T *argvars, typval_T *rettv);
static void f_win_gotoid(typval_T *argvars, typval_T *rettv);
static void f_win_id2tabwin(typval_T *argvars, typval_T *rettv);
static void f_win_id2win(typval_T *argvars, typval_T *rettv);
static void f_winbufnr(typval_T *argvars, typval_T *rettv);
static void f_wincol(typval_T *argvars, typval_T *rettv);
static void f_winheight(typval_T *argvars, typval_T *rettv);
static void f_winline(typval_T *argvars, typval_T *rettv);
static void f_winnr(typval_T *argvars, typval_T *rettv);
static void f_winrestcmd(typval_T *argvars, typval_T *rettv);
static void f_winrestview(typval_T *argvars, typval_T *rettv);
static void f_winsaveview(typval_T *argvars, typval_T *rettv);
static void f_winwidth(typval_T *argvars, typval_T *rettv);
static void f_writefile(typval_T *argvars, typval_T *rettv);
static void f_wordcount(typval_T *argvars, typval_T *rettv);
static void f_xor(typval_T *argvars, typval_T *rettv);
/*
* Array with names and number of arguments of all internal functions
* MUST BE KEPT SORTED IN strcmp() ORDER FOR BINARY SEARCH!
*/
static struct fst
{
char *f_name; /* function name */
char f_min_argc; /* minimal number of arguments */
char f_max_argc; /* maximal number of arguments */
void (*f_func)(typval_T *args, typval_T *rvar);
/* implementation of function */
} functions[] =
{
#ifdef FEAT_FLOAT
{"abs", 1, 1, f_abs},
{"acos", 1, 1, f_acos}, /* WJMc */
#endif
{"add", 2, 2, f_add},
{"and", 2, 2, f_and},
{"append", 2, 2, f_append},
{"argc", 0, 0, f_argc},
{"argidx", 0, 0, f_argidx},
{"arglistid", 0, 2, f_arglistid},
{"argv", 0, 1, f_argv},
#ifdef FEAT_FLOAT
{"asin", 1, 1, f_asin}, /* WJMc */
#endif
{"assert_equal", 2, 3, f_assert_equal},
{"assert_exception", 1, 2, f_assert_exception},
{"assert_fails", 1, 2, f_assert_fails},
{"assert_false", 1, 2, f_assert_false},
{"assert_inrange", 3, 4, f_assert_inrange},
{"assert_match", 2, 3, f_assert_match},
{"assert_notequal", 2, 3, f_assert_notequal},
{"assert_notmatch", 2, 3, f_assert_notmatch},
{"assert_report", 1, 1, f_assert_report},
{"assert_true", 1, 2, f_assert_true},
#ifdef FEAT_FLOAT
{"atan", 1, 1, f_atan},
{"atan2", 2, 2, f_atan2},
#endif
#ifdef FEAT_BEVAL
{"balloon_show", 1, 1, f_balloon_show},
#endif
{"browse", 4, 4, f_browse},
{"browsedir", 2, 2, f_browsedir},
{"bufexists", 1, 1, f_bufexists},
{"buffer_exists", 1, 1, f_bufexists}, /* obsolete */
{"buffer_name", 1, 1, f_bufname}, /* obsolete */
{"buffer_number", 1, 1, f_bufnr}, /* obsolete */
{"buflisted", 1, 1, f_buflisted},
{"bufloaded", 1, 1, f_bufloaded},
{"bufname", 1, 1, f_bufname},
{"bufnr", 1, 2, f_bufnr},
{"bufwinid", 1, 1, f_bufwinid},
{"bufwinnr", 1, 1, f_bufwinnr},
{"byte2line", 1, 1, f_byte2line},
{"byteidx", 2, 2, f_byteidx},
{"byteidxcomp", 2, 2, f_byteidxcomp},
{"call", 2, 3, f_call},
#ifdef FEAT_FLOAT
{"ceil", 1, 1, f_ceil},
#endif
#ifdef FEAT_JOB_CHANNEL
{"ch_canread", 1, 1, f_ch_canread},
{"ch_close", 1, 1, f_ch_close},
{"ch_close_in", 1, 1, f_ch_close_in},
{"ch_evalexpr", 2, 3, f_ch_evalexpr},
{"ch_evalraw", 2, 3, f_ch_evalraw},
{"ch_getbufnr", 2, 2, f_ch_getbufnr},
{"ch_getjob", 1, 1, f_ch_getjob},
{"ch_info", 1, 1, f_ch_info},
{"ch_log", 1, 2, f_ch_log},
{"ch_logfile", 1, 2, f_ch_logfile},
{"ch_open", 1, 2, f_ch_open},
{"ch_read", 1, 2, f_ch_read},
{"ch_readraw", 1, 2, f_ch_readraw},
{"ch_sendexpr", 2, 3, f_ch_sendexpr},
{"ch_sendraw", 2, 3, f_ch_sendraw},
{"ch_setoptions", 2, 2, f_ch_setoptions},
{"ch_status", 1, 2, f_ch_status},
#endif
{"changenr", 0, 0, f_changenr},
{"char2nr", 1, 2, f_char2nr},
{"cindent", 1, 1, f_cindent},
{"clearmatches", 0, 0, f_clearmatches},
{"col", 1, 1, f_col},
#if defined(FEAT_INS_EXPAND)
{"complete", 2, 2, f_complete},
{"complete_add", 1, 1, f_complete_add},
{"complete_check", 0, 0, f_complete_check},
#endif
{"confirm", 1, 4, f_confirm},
{"copy", 1, 1, f_copy},
#ifdef FEAT_FLOAT
{"cos", 1, 1, f_cos},
{"cosh", 1, 1, f_cosh},
#endif
{"count", 2, 4, f_count},
{"cscope_connection",0,3, f_cscope_connection},
{"cursor", 1, 3, f_cursor},
{"deepcopy", 1, 2, f_deepcopy},
{"delete", 1, 2, f_delete},
{"did_filetype", 0, 0, f_did_filetype},
{"diff_filler", 1, 1, f_diff_filler},
{"diff_hlID", 2, 2, f_diff_hlID},
{"empty", 1, 1, f_empty},
{"escape", 2, 2, f_escape},
{"eval", 1, 1, f_eval},
{"eventhandler", 0, 0, f_eventhandler},
{"executable", 1, 1, f_executable},
{"execute", 1, 2, f_execute},
{"exepath", 1, 1, f_exepath},
{"exists", 1, 1, f_exists},
#ifdef FEAT_FLOAT
{"exp", 1, 1, f_exp},
#endif
{"expand", 1, 3, f_expand},
{"extend", 2, 3, f_extend},
{"feedkeys", 1, 2, f_feedkeys},
{"file_readable", 1, 1, f_filereadable}, /* obsolete */
{"filereadable", 1, 1, f_filereadable},
{"filewritable", 1, 1, f_filewritable},
{"filter", 2, 2, f_filter},
{"finddir", 1, 3, f_finddir},
{"findfile", 1, 3, f_findfile},
#ifdef FEAT_FLOAT
{"float2nr", 1, 1, f_float2nr},
{"floor", 1, 1, f_floor},
{"fmod", 2, 2, f_fmod},
#endif
{"fnameescape", 1, 1, f_fnameescape},
{"fnamemodify", 2, 2, f_fnamemodify},
{"foldclosed", 1, 1, f_foldclosed},
{"foldclosedend", 1, 1, f_foldclosedend},
{"foldlevel", 1, 1, f_foldlevel},
{"foldtext", 0, 0, f_foldtext},
{"foldtextresult", 1, 1, f_foldtextresult},
{"foreground", 0, 0, f_foreground},
{"funcref", 1, 3, f_funcref},
{"function", 1, 3, f_function},
{"garbagecollect", 0, 1, f_garbagecollect},
{"get", 2, 3, f_get},
{"getbufinfo", 0, 1, f_getbufinfo},
{"getbufline", 2, 3, f_getbufline},
{"getbufvar", 2, 3, f_getbufvar},
{"getchar", 0, 1, f_getchar},
{"getcharmod", 0, 0, f_getcharmod},
{"getcharsearch", 0, 0, f_getcharsearch},
{"getcmdline", 0, 0, f_getcmdline},
{"getcmdpos", 0, 0, f_getcmdpos},
{"getcmdtype", 0, 0, f_getcmdtype},
{"getcmdwintype", 0, 0, f_getcmdwintype},
#if defined(FEAT_CMDL_COMPL)
{"getcompletion", 2, 3, f_getcompletion},
#endif
{"getcurpos", 0, 0, f_getcurpos},
{"getcwd", 0, 2, f_getcwd},
{"getfontname", 0, 1, f_getfontname},
{"getfperm", 1, 1, f_getfperm},
{"getfsize", 1, 1, f_getfsize},
{"getftime", 1, 1, f_getftime},
{"getftype", 1, 1, f_getftype},
{"getline", 1, 2, f_getline},
{"getloclist", 1, 2, f_getloclist},
{"getmatches", 0, 0, f_getmatches},
{"getpid", 0, 0, f_getpid},
{"getpos", 1, 1, f_getpos},
{"getqflist", 0, 1, f_getqflist},
{"getreg", 0, 3, f_getreg},
{"getregtype", 0, 1, f_getregtype},
{"gettabinfo", 0, 1, f_gettabinfo},
{"gettabvar", 2, 3, f_gettabvar},
{"gettabwinvar", 3, 4, f_gettabwinvar},
{"getwininfo", 0, 1, f_getwininfo},
{"getwinposx", 0, 0, f_getwinposx},
{"getwinposy", 0, 0, f_getwinposy},
{"getwinvar", 2, 3, f_getwinvar},
{"glob", 1, 4, f_glob},
{"glob2regpat", 1, 1, f_glob2regpat},
{"globpath", 2, 5, f_globpath},
{"has", 1, 1, f_has},
{"has_key", 2, 2, f_has_key},
{"haslocaldir", 0, 2, f_haslocaldir},
{"hasmapto", 1, 3, f_hasmapto},
{"highlightID", 1, 1, f_hlID}, /* obsolete */
{"highlight_exists",1, 1, f_hlexists}, /* obsolete */
{"histadd", 2, 2, f_histadd},
{"histdel", 1, 2, f_histdel},
{"histget", 1, 2, f_histget},
{"histnr", 1, 1, f_histnr},
{"hlID", 1, 1, f_hlID},
{"hlexists", 1, 1, f_hlexists},
{"hostname", 0, 0, f_hostname},
{"iconv", 3, 3, f_iconv},
{"indent", 1, 1, f_indent},
{"index", 2, 4, f_index},
{"input", 1, 3, f_input},
{"inputdialog", 1, 3, f_inputdialog},
{"inputlist", 1, 1, f_inputlist},
{"inputrestore", 0, 0, f_inputrestore},
{"inputsave", 0, 0, f_inputsave},
{"inputsecret", 1, 2, f_inputsecret},
{"insert", 2, 3, f_insert},
{"invert", 1, 1, f_invert},
{"isdirectory", 1, 1, f_isdirectory},
{"islocked", 1, 1, f_islocked},
#if defined(FEAT_FLOAT) && defined(HAVE_MATH_H)
{"isnan", 1, 1, f_isnan},
#endif
{"items", 1, 1, f_items},
#ifdef FEAT_JOB_CHANNEL
{"job_getchannel", 1, 1, f_job_getchannel},
{"job_info", 1, 1, f_job_info},
{"job_setoptions", 2, 2, f_job_setoptions},
{"job_start", 1, 2, f_job_start},
{"job_status", 1, 1, f_job_status},
{"job_stop", 1, 2, f_job_stop},
#endif
{"join", 1, 2, f_join},
{"js_decode", 1, 1, f_js_decode},
{"js_encode", 1, 1, f_js_encode},
{"json_decode", 1, 1, f_json_decode},
{"json_encode", 1, 1, f_json_encode},
{"keys", 1, 1, f_keys},
{"last_buffer_nr", 0, 0, f_last_buffer_nr},/* obsolete */
{"len", 1, 1, f_len},
{"libcall", 3, 3, f_libcall},
{"libcallnr", 3, 3, f_libcallnr},
{"line", 1, 1, f_line},
{"line2byte", 1, 1, f_line2byte},
{"lispindent", 1, 1, f_lispindent},
{"localtime", 0, 0, f_localtime},
#ifdef FEAT_FLOAT
{"log", 1, 1, f_log},
{"log10", 1, 1, f_log10},
#endif
#ifdef FEAT_LUA
{"luaeval", 1, 2, f_luaeval},
#endif
{"map", 2, 2, f_map},
{"maparg", 1, 4, f_maparg},
{"mapcheck", 1, 3, f_mapcheck},
{"match", 2, 4, f_match},
{"matchadd", 2, 5, f_matchadd},
{"matchaddpos", 2, 5, f_matchaddpos},
{"matcharg", 1, 1, f_matcharg},
{"matchdelete", 1, 1, f_matchdelete},
{"matchend", 2, 4, f_matchend},
{"matchlist", 2, 4, f_matchlist},
{"matchstr", 2, 4, f_matchstr},
{"matchstrpos", 2, 4, f_matchstrpos},
{"max", 1, 1, f_max},
{"min", 1, 1, f_min},
#ifdef vim_mkdir
{"mkdir", 1, 3, f_mkdir},
#endif
{"mode", 0, 1, f_mode},
#ifdef FEAT_MZSCHEME
{"mzeval", 1, 1, f_mzeval},
#endif
{"nextnonblank", 1, 1, f_nextnonblank},
{"nr2char", 1, 2, f_nr2char},
{"or", 2, 2, f_or},
{"pathshorten", 1, 1, f_pathshorten},
#ifdef FEAT_PERL
{"perleval", 1, 1, f_perleval},
#endif
#ifdef FEAT_FLOAT
{"pow", 2, 2, f_pow},
#endif
{"prevnonblank", 1, 1, f_prevnonblank},
{"printf", 2, 19, f_printf},
{"pumvisible", 0, 0, f_pumvisible},
#ifdef FEAT_PYTHON3
{"py3eval", 1, 1, f_py3eval},
#endif
#ifdef FEAT_PYTHON
{"pyeval", 1, 1, f_pyeval},
#endif
#if defined(FEAT_PYTHON) || defined(FEAT_PYTHON3)
{"pyxeval", 1, 1, f_pyxeval},
#endif
{"range", 1, 3, f_range},
{"readfile", 1, 3, f_readfile},
{"reltime", 0, 2, f_reltime},
#ifdef FEAT_FLOAT
{"reltimefloat", 1, 1, f_reltimefloat},
#endif
{"reltimestr", 1, 1, f_reltimestr},
{"remote_expr", 2, 4, f_remote_expr},
{"remote_foreground", 1, 1, f_remote_foreground},
{"remote_peek", 1, 2, f_remote_peek},
{"remote_read", 1, 2, f_remote_read},
{"remote_send", 2, 3, f_remote_send},
{"remote_startserver", 1, 1, f_remote_startserver},
{"remove", 2, 3, f_remove},
{"rename", 2, 2, f_rename},
{"repeat", 2, 2, f_repeat},
{"resolve", 1, 1, f_resolve},
{"reverse", 1, 1, f_reverse},
#ifdef FEAT_FLOAT
{"round", 1, 1, f_round},
#endif
{"screenattr", 2, 2, f_screenattr},
{"screenchar", 2, 2, f_screenchar},
{"screencol", 0, 0, f_screencol},
{"screenrow", 0, 0, f_screenrow},
{"search", 1, 4, f_search},
{"searchdecl", 1, 3, f_searchdecl},
{"searchpair", 3, 7, f_searchpair},
{"searchpairpos", 3, 7, f_searchpairpos},
{"searchpos", 1, 4, f_searchpos},
{"server2client", 2, 2, f_server2client},
{"serverlist", 0, 0, f_serverlist},
{"setbufline", 3, 3, f_setbufline},
{"setbufvar", 3, 3, f_setbufvar},
{"setcharsearch", 1, 1, f_setcharsearch},
{"setcmdpos", 1, 1, f_setcmdpos},
{"setfperm", 2, 2, f_setfperm},
{"setline", 2, 2, f_setline},
{"setloclist", 2, 4, f_setloclist},
{"setmatches", 1, 1, f_setmatches},
{"setpos", 2, 2, f_setpos},
{"setqflist", 1, 3, f_setqflist},
{"setreg", 2, 3, f_setreg},
{"settabvar", 3, 3, f_settabvar},
{"settabwinvar", 4, 4, f_settabwinvar},
{"setwinvar", 3, 3, f_setwinvar},
#ifdef FEAT_CRYPT
{"sha256", 1, 1, f_sha256},
#endif
{"shellescape", 1, 2, f_shellescape},
{"shiftwidth", 0, 0, f_shiftwidth},
{"simplify", 1, 1, f_simplify},
#ifdef FEAT_FLOAT
{"sin", 1, 1, f_sin},
{"sinh", 1, 1, f_sinh},
#endif
{"sort", 1, 3, f_sort},
{"soundfold", 1, 1, f_soundfold},
{"spellbadword", 0, 1, f_spellbadword},
{"spellsuggest", 1, 3, f_spellsuggest},
{"split", 1, 3, f_split},
#ifdef FEAT_FLOAT
{"sqrt", 1, 1, f_sqrt},
{"str2float", 1, 1, f_str2float},
#endif
{"str2nr", 1, 2, f_str2nr},
{"strcharpart", 2, 3, f_strcharpart},
{"strchars", 1, 2, f_strchars},
{"strdisplaywidth", 1, 2, f_strdisplaywidth},
#ifdef HAVE_STRFTIME
{"strftime", 1, 2, f_strftime},
#endif
{"strgetchar", 2, 2, f_strgetchar},
{"stridx", 2, 3, f_stridx},
{"string", 1, 1, f_string},
{"strlen", 1, 1, f_strlen},
{"strpart", 2, 3, f_strpart},
{"strridx", 2, 3, f_strridx},
{"strtrans", 1, 1, f_strtrans},
{"strwidth", 1, 1, f_strwidth},
{"submatch", 1, 2, f_submatch},
{"substitute", 4, 4, f_substitute},
{"synID", 3, 3, f_synID},
{"synIDattr", 2, 3, f_synIDattr},
{"synIDtrans", 1, 1, f_synIDtrans},
{"synconcealed", 2, 2, f_synconcealed},
{"synstack", 2, 2, f_synstack},
{"system", 1, 2, f_system},
{"systemlist", 1, 2, f_systemlist},
{"tabpagebuflist", 0, 1, f_tabpagebuflist},
{"tabpagenr", 0, 1, f_tabpagenr},
{"tabpagewinnr", 1, 2, f_tabpagewinnr},
{"tagfiles", 0, 0, f_tagfiles},
{"taglist", 1, 2, f_taglist},
#ifdef FEAT_FLOAT
{"tan", 1, 1, f_tan},
{"tanh", 1, 1, f_tanh},
#endif
{"tempname", 0, 0, f_tempname},
#ifdef FEAT_TERMINAL
{"term_getaltscreen", 1, 1, f_term_getaltscreen},
{"term_getattr", 2, 2, f_term_getattr},
{"term_getcursor", 1, 1, f_term_getcursor},
{"term_getjob", 1, 1, f_term_getjob},
{"term_getline", 2, 2, f_term_getline},
{"term_getscrolled", 1, 1, f_term_getscrolled},
{"term_getsize", 1, 1, f_term_getsize},
{"term_getstatus", 1, 1, f_term_getstatus},
{"term_gettitle", 1, 1, f_term_gettitle},
{"term_gettty", 1, 2, f_term_gettty},
{"term_list", 0, 0, f_term_list},
{"term_scrape", 2, 2, f_term_scrape},
{"term_sendkeys", 2, 2, f_term_sendkeys},
{"term_start", 1, 2, f_term_start},
{"term_wait", 1, 2, f_term_wait},
#endif
{"test_alloc_fail", 3, 3, f_test_alloc_fail},
{"test_autochdir", 0, 0, f_test_autochdir},
{"test_feedinput", 1, 1, f_test_feedinput},
{"test_garbagecollect_now", 0, 0, f_test_garbagecollect_now},
{"test_ignore_error", 1, 1, f_test_ignore_error},
#ifdef FEAT_JOB_CHANNEL
{"test_null_channel", 0, 0, f_test_null_channel},
#endif
{"test_null_dict", 0, 0, f_test_null_dict},
#ifdef FEAT_JOB_CHANNEL
{"test_null_job", 0, 0, f_test_null_job},
#endif
{"test_null_list", 0, 0, f_test_null_list},
{"test_null_partial", 0, 0, f_test_null_partial},
{"test_null_string", 0, 0, f_test_null_string},
{"test_override", 2, 2, f_test_override},
{"test_settime", 1, 1, f_test_settime},
#ifdef FEAT_TIMERS
{"timer_info", 0, 1, f_timer_info},
{"timer_pause", 2, 2, f_timer_pause},
{"timer_start", 2, 3, f_timer_start},
{"timer_stop", 1, 1, f_timer_stop},
{"timer_stopall", 0, 0, f_timer_stopall},
#endif
{"tolower", 1, 1, f_tolower},
{"toupper", 1, 1, f_toupper},
{"tr", 3, 3, f_tr},
#ifdef FEAT_FLOAT
{"trunc", 1, 1, f_trunc},
#endif
{"type", 1, 1, f_type},
{"undofile", 1, 1, f_undofile},
{"undotree", 0, 0, f_undotree},
{"uniq", 1, 3, f_uniq},
{"values", 1, 1, f_values},
{"virtcol", 1, 1, f_virtcol},
{"visualmode", 0, 1, f_visualmode},
{"wildmenumode", 0, 0, f_wildmenumode},
{"win_findbuf", 1, 1, f_win_findbuf},
{"win_getid", 0, 2, f_win_getid},
{"win_gotoid", 1, 1, f_win_gotoid},
{"win_id2tabwin", 1, 1, f_win_id2tabwin},
{"win_id2win", 1, 1, f_win_id2win},
{"winbufnr", 1, 1, f_winbufnr},
{"wincol", 0, 0, f_wincol},
{"winheight", 1, 1, f_winheight},
{"winline", 0, 0, f_winline},
{"winnr", 0, 1, f_winnr},
{"winrestcmd", 0, 0, f_winrestcmd},
{"winrestview", 1, 1, f_winrestview},
{"winsaveview", 0, 0, f_winsaveview},
{"winwidth", 1, 1, f_winwidth},
{"wordcount", 0, 0, f_wordcount},
{"writefile", 2, 3, f_writefile},
{"xor", 2, 2, f_xor},
};
#if defined(FEAT_CMDL_COMPL) || defined(PROTO)
/*
* Function given to ExpandGeneric() to obtain the list of internal
* or user defined function names.
*/
char_u *
get_function_name(expand_T *xp, int idx)
{
static int intidx = -1;
char_u *name;
if (idx == 0)
intidx = -1;
if (intidx < 0)
{
name = get_user_func_name(xp, idx);
if (name != NULL)
return name;
}
if (++intidx < (int)(sizeof(functions) / sizeof(struct fst)))
{
STRCPY(IObuff, functions[intidx].f_name);
STRCAT(IObuff, "(");
if (functions[intidx].f_max_argc == 0)
STRCAT(IObuff, ")");
return IObuff;
}
return NULL;
}
/*
* Function given to ExpandGeneric() to obtain the list of internal or
* user defined variable or function names.
*/
char_u *
get_expr_name(expand_T *xp, int idx)
{
static int intidx = -1;
char_u *name;
if (idx == 0)
intidx = -1;
if (intidx < 0)
{
name = get_function_name(xp, idx);
if (name != NULL)
return name;
}
return get_user_var_name(xp, ++intidx);
}
#endif /* FEAT_CMDL_COMPL */
/*
* Find internal function in table above.
* Return index, or -1 if not found
*/
int
find_internal_func(
char_u *name) /* name of the function */
{
int first = 0;
int last = (int)(sizeof(functions) / sizeof(struct fst)) - 1;
int cmp;
int x;
/*
* Find the function name in the table. Binary search.
*/
while (first <= last)
{
x = first + ((unsigned)(last - first) >> 1);
cmp = STRCMP(name, functions[x].f_name);
if (cmp < 0)
last = x - 1;
else if (cmp > 0)
first = x + 1;
else
return x;
}
return -1;
}
int
call_internal_func(
char_u *name,
int argcount,
typval_T *argvars,
typval_T *rettv)