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normal.c
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normal.c
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/* vi:set ts=8 sts=4 sw=4:
*
* 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.
*/
/*
* normal.c: Contains the main routine for processing characters in command
* mode. Communicates closely with the code in ops.c to handle
* the operators.
*/
#include "vim.h"
#ifdef FEAT_VISUAL
/*
* The Visual area is remembered for reselection.
*/
static int resel_VIsual_mode = NUL; /* 'v', 'V', or Ctrl-V */
static linenr_T resel_VIsual_line_count; /* number of lines */
static colnr_T resel_VIsual_col; /* nr of cols or end col */
static int restart_VIsual_select = 0;
#endif
static int
# ifdef __BORLANDC__
_RTLENTRYF
# endif
nv_compare __ARGS((const void *s1, const void *s2));
static int find_command __ARGS((int cmdchar));
static void op_colon __ARGS((oparg_T *oap));
static void op_function __ARGS((oparg_T *oap));
#if defined(FEAT_MOUSE) && defined(FEAT_VISUAL)
static void find_start_of_word __ARGS((pos_T *));
static void find_end_of_word __ARGS((pos_T *));
static int get_mouse_class __ARGS((char_u *p));
#endif
static void prep_redo_cmd __ARGS((cmdarg_T *cap));
static void prep_redo __ARGS((int regname, long, int, int, int, int, int));
static int checkclearop __ARGS((oparg_T *oap));
static int checkclearopq __ARGS((oparg_T *oap));
static void clearop __ARGS((oparg_T *oap));
static void clearopbeep __ARGS((oparg_T *oap));
#ifdef FEAT_VISUAL
static void unshift_special __ARGS((cmdarg_T *cap));
#endif
#ifdef FEAT_CMDL_INFO
static void del_from_showcmd __ARGS((int));
#endif
/*
* nv_*(): functions called to handle Normal and Visual mode commands.
* n_*(): functions called to handle Normal mode commands.
* v_*(): functions called to handle Visual mode commands.
*/
static void nv_ignore __ARGS((cmdarg_T *cap));
static void nv_nop __ARGS((cmdarg_T *cap));
static void nv_error __ARGS((cmdarg_T *cap));
static void nv_help __ARGS((cmdarg_T *cap));
static void nv_addsub __ARGS((cmdarg_T *cap));
static void nv_page __ARGS((cmdarg_T *cap));
static void nv_gd __ARGS((oparg_T *oap, int nchar, int thisblock));
static int nv_screengo __ARGS((oparg_T *oap, int dir, long dist));
#ifdef FEAT_MOUSE
static void nv_mousescroll __ARGS((cmdarg_T *cap));
static void nv_mouse __ARGS((cmdarg_T *cap));
#endif
static void nv_scroll_line __ARGS((cmdarg_T *cap));
static void nv_zet __ARGS((cmdarg_T *cap));
#ifdef FEAT_GUI
static void nv_ver_scrollbar __ARGS((cmdarg_T *cap));
static void nv_hor_scrollbar __ARGS((cmdarg_T *cap));
#endif
#ifdef FEAT_GUI_TABLINE
static void nv_tabline __ARGS((cmdarg_T *cap));
static void nv_tabmenu __ARGS((cmdarg_T *cap));
#endif
static void nv_exmode __ARGS((cmdarg_T *cap));
static void nv_colon __ARGS((cmdarg_T *cap));
static void nv_ctrlg __ARGS((cmdarg_T *cap));
static void nv_ctrlh __ARGS((cmdarg_T *cap));
static void nv_clear __ARGS((cmdarg_T *cap));
static void nv_ctrlo __ARGS((cmdarg_T *cap));
static void nv_hat __ARGS((cmdarg_T *cap));
static void nv_Zet __ARGS((cmdarg_T *cap));
static void nv_ident __ARGS((cmdarg_T *cap));
static void nv_tagpop __ARGS((cmdarg_T *cap));
static void nv_scroll __ARGS((cmdarg_T *cap));
static void nv_right __ARGS((cmdarg_T *cap));
static void nv_left __ARGS((cmdarg_T *cap));
static void nv_up __ARGS((cmdarg_T *cap));
static void nv_down __ARGS((cmdarg_T *cap));
#ifdef FEAT_SEARCHPATH
static void nv_gotofile __ARGS((cmdarg_T *cap));
#endif
static void nv_end __ARGS((cmdarg_T *cap));
static void nv_dollar __ARGS((cmdarg_T *cap));
static void nv_search __ARGS((cmdarg_T *cap));
static void nv_next __ARGS((cmdarg_T *cap));
static void normal_search __ARGS((cmdarg_T *cap, int dir, char_u *pat, int opt));
static void nv_csearch __ARGS((cmdarg_T *cap));
static void nv_brackets __ARGS((cmdarg_T *cap));
static void nv_percent __ARGS((cmdarg_T *cap));
static void nv_brace __ARGS((cmdarg_T *cap));
static void nv_mark __ARGS((cmdarg_T *cap));
static void nv_findpar __ARGS((cmdarg_T *cap));
static void nv_undo __ARGS((cmdarg_T *cap));
static void nv_kundo __ARGS((cmdarg_T *cap));
static void nv_Replace __ARGS((cmdarg_T *cap));
#ifdef FEAT_VREPLACE
static void nv_vreplace __ARGS((cmdarg_T *cap));
#endif
#ifdef FEAT_VISUAL
static void v_swap_corners __ARGS((int cmdchar));
#endif
static void nv_replace __ARGS((cmdarg_T *cap));
static void n_swapchar __ARGS((cmdarg_T *cap));
static void nv_cursormark __ARGS((cmdarg_T *cap, int flag, pos_T *pos));
#ifdef FEAT_VISUAL
static void v_visop __ARGS((cmdarg_T *cap));
#endif
static void nv_subst __ARGS((cmdarg_T *cap));
static void nv_abbrev __ARGS((cmdarg_T *cap));
static void nv_optrans __ARGS((cmdarg_T *cap));
static void nv_gomark __ARGS((cmdarg_T *cap));
static void nv_pcmark __ARGS((cmdarg_T *cap));
static void nv_regname __ARGS((cmdarg_T *cap));
#ifdef FEAT_VISUAL
static void nv_visual __ARGS((cmdarg_T *cap));
static void n_start_visual_mode __ARGS((int c));
#endif
static void nv_window __ARGS((cmdarg_T *cap));
static void nv_suspend __ARGS((cmdarg_T *cap));
static void nv_g_cmd __ARGS((cmdarg_T *cap));
static void n_opencmd __ARGS((cmdarg_T *cap));
static void nv_dot __ARGS((cmdarg_T *cap));
static void nv_redo __ARGS((cmdarg_T *cap));
static void nv_Undo __ARGS((cmdarg_T *cap));
static void nv_tilde __ARGS((cmdarg_T *cap));
static void nv_operator __ARGS((cmdarg_T *cap));
#ifdef FEAT_EVAL
static void set_op_var __ARGS((int optype));
#endif
static void nv_lineop __ARGS((cmdarg_T *cap));
static void nv_home __ARGS((cmdarg_T *cap));
static void nv_pipe __ARGS((cmdarg_T *cap));
static void nv_bck_word __ARGS((cmdarg_T *cap));
static void nv_wordcmd __ARGS((cmdarg_T *cap));
static void nv_beginline __ARGS((cmdarg_T *cap));
static void adjust_cursor __ARGS((oparg_T *oap));
#ifdef FEAT_VISUAL
static void adjust_for_sel __ARGS((cmdarg_T *cap));
static int unadjust_for_sel __ARGS((void));
static void nv_select __ARGS((cmdarg_T *cap));
#endif
static void nv_goto __ARGS((cmdarg_T *cap));
static void nv_normal __ARGS((cmdarg_T *cap));
static void nv_esc __ARGS((cmdarg_T *oap));
static void nv_edit __ARGS((cmdarg_T *cap));
static void invoke_edit __ARGS((cmdarg_T *cap, int repl, int cmd, int startln));
#ifdef FEAT_TEXTOBJ
static void nv_object __ARGS((cmdarg_T *cap));
#endif
static void nv_record __ARGS((cmdarg_T *cap));
static void nv_at __ARGS((cmdarg_T *cap));
static void nv_halfpage __ARGS((cmdarg_T *cap));
static void nv_join __ARGS((cmdarg_T *cap));
static void nv_put __ARGS((cmdarg_T *cap));
static void nv_open __ARGS((cmdarg_T *cap));
#ifdef FEAT_SNIFF
static void nv_sniff __ARGS((cmdarg_T *cap));
#endif
#ifdef FEAT_NETBEANS_INTG
static void nv_nbcmd __ARGS((cmdarg_T *cap));
#endif
#ifdef FEAT_DND
static void nv_drop __ARGS((cmdarg_T *cap));
#endif
#ifdef FEAT_AUTOCMD
static void nv_cursorhold __ARGS((cmdarg_T *cap));
#endif
static char *e_noident = N_("E349: No identifier under cursor");
/*
* Function to be called for a Normal or Visual mode command.
* The argument is a cmdarg_T.
*/
typedef void (*nv_func_T) __ARGS((cmdarg_T *cap));
/* Values for cmd_flags. */
#define NV_NCH 0x01 /* may need to get a second char */
#define NV_NCH_NOP (0x02|NV_NCH) /* get second char when no operator pending */
#define NV_NCH_ALW (0x04|NV_NCH) /* always get a second char */
#define NV_LANG 0x08 /* second char needs language adjustment */
#define NV_SS 0x10 /* may start selection */
#define NV_SSS 0x20 /* may start selection with shift modifier */
#define NV_STS 0x40 /* may stop selection without shift modif. */
#define NV_RL 0x80 /* 'rightleft' modifies command */
#define NV_KEEPREG 0x100 /* don't clear regname */
#define NV_NCW 0x200 /* not allowed in command-line window */
/*
* Generally speaking, every Normal mode command should either clear any
* pending operator (with *clearop*()), or set the motion type variable
* oap->motion_type.
*
* When a cursor motion command is made, it is marked as being a character or
* line oriented motion. Then, if an operator is in effect, the operation
* becomes character or line oriented accordingly.
*/
/*
* This table contains one entry for every Normal or Visual mode command.
* The order doesn't matter, init_normal_cmds() will create a sorted index.
* It is faster when all keys from zero to '~' are present.
*/
static const struct nv_cmd
{
int cmd_char; /* (first) command character */
nv_func_T cmd_func; /* function for this command */
short_u cmd_flags; /* NV_ flags */
short cmd_arg; /* value for ca.arg */
} nv_cmds[] =
{
{NUL, nv_error, 0, 0},
{Ctrl_A, nv_addsub, 0, 0},
{Ctrl_B, nv_page, NV_STS, BACKWARD},
{Ctrl_C, nv_esc, 0, TRUE},
{Ctrl_D, nv_halfpage, 0, 0},
{Ctrl_E, nv_scroll_line, 0, TRUE},
{Ctrl_F, nv_page, NV_STS, FORWARD},
{Ctrl_G, nv_ctrlg, 0, 0},
{Ctrl_H, nv_ctrlh, 0, 0},
{Ctrl_I, nv_pcmark, 0, 0},
{NL, nv_down, 0, FALSE},
{Ctrl_K, nv_error, 0, 0},
{Ctrl_L, nv_clear, 0, 0},
{Ctrl_M, nv_down, 0, TRUE},
{Ctrl_N, nv_down, NV_STS, FALSE},
{Ctrl_O, nv_ctrlo, 0, 0},
{Ctrl_P, nv_up, NV_STS, FALSE},
#ifdef FEAT_VISUAL
{Ctrl_Q, nv_visual, 0, FALSE},
#else
{Ctrl_Q, nv_ignore, 0, 0},
#endif
{Ctrl_R, nv_redo, 0, 0},
{Ctrl_S, nv_ignore, 0, 0},
{Ctrl_T, nv_tagpop, NV_NCW, 0},
{Ctrl_U, nv_halfpage, 0, 0},
#ifdef FEAT_VISUAL
{Ctrl_V, nv_visual, 0, FALSE},
{'V', nv_visual, 0, FALSE},
{'v', nv_visual, 0, FALSE},
#else
{Ctrl_V, nv_error, 0, 0},
{'V', nv_error, 0, 0},
{'v', nv_error, 0, 0},
#endif
{Ctrl_W, nv_window, 0, 0},
{Ctrl_X, nv_addsub, 0, 0},
{Ctrl_Y, nv_scroll_line, 0, FALSE},
{Ctrl_Z, nv_suspend, 0, 0},
{ESC, nv_esc, 0, FALSE},
{Ctrl_BSL, nv_normal, NV_NCH_ALW, 0},
{Ctrl_RSB, nv_ident, NV_NCW, 0},
{Ctrl_HAT, nv_hat, NV_NCW, 0},
{Ctrl__, nv_error, 0, 0},
{' ', nv_right, 0, 0},
{'!', nv_operator, 0, 0},
{'"', nv_regname, NV_NCH_NOP|NV_KEEPREG, 0},
{'#', nv_ident, 0, 0},
{'$', nv_dollar, 0, 0},
{'%', nv_percent, 0, 0},
{'&', nv_optrans, 0, 0},
{'\'', nv_gomark, NV_NCH_ALW, TRUE},
{'(', nv_brace, 0, BACKWARD},
{')', nv_brace, 0, FORWARD},
{'*', nv_ident, 0, 0},
{'+', nv_down, 0, TRUE},
{',', nv_csearch, 0, TRUE},
{'-', nv_up, 0, TRUE},
{'.', nv_dot, NV_KEEPREG, 0},
{'/', nv_search, 0, FALSE},
{'0', nv_beginline, 0, 0},
{'1', nv_ignore, 0, 0},
{'2', nv_ignore, 0, 0},
{'3', nv_ignore, 0, 0},
{'4', nv_ignore, 0, 0},
{'5', nv_ignore, 0, 0},
{'6', nv_ignore, 0, 0},
{'7', nv_ignore, 0, 0},
{'8', nv_ignore, 0, 0},
{'9', nv_ignore, 0, 0},
{':', nv_colon, 0, 0},
{';', nv_csearch, 0, FALSE},
{'<', nv_operator, NV_RL, 0},
{'=', nv_operator, 0, 0},
{'>', nv_operator, NV_RL, 0},
{'?', nv_search, 0, FALSE},
{'@', nv_at, NV_NCH_NOP, FALSE},
{'A', nv_edit, 0, 0},
{'B', nv_bck_word, 0, 1},
{'C', nv_abbrev, NV_KEEPREG, 0},
{'D', nv_abbrev, NV_KEEPREG, 0},
{'E', nv_wordcmd, 0, TRUE},
{'F', nv_csearch, NV_NCH_ALW|NV_LANG, BACKWARD},
{'G', nv_goto, 0, TRUE},
{'H', nv_scroll, 0, 0},
{'I', nv_edit, 0, 0},
{'J', nv_join, 0, 0},
{'K', nv_ident, 0, 0},
{'L', nv_scroll, 0, 0},
{'M', nv_scroll, 0, 0},
{'N', nv_next, 0, SEARCH_REV},
{'O', nv_open, 0, 0},
{'P', nv_put, 0, 0},
{'Q', nv_exmode, NV_NCW, 0},
{'R', nv_Replace, 0, FALSE},
{'S', nv_subst, NV_KEEPREG, 0},
{'T', nv_csearch, NV_NCH_ALW|NV_LANG, BACKWARD},
{'U', nv_Undo, 0, 0},
{'W', nv_wordcmd, 0, TRUE},
{'X', nv_abbrev, NV_KEEPREG, 0},
{'Y', nv_abbrev, NV_KEEPREG, 0},
{'Z', nv_Zet, NV_NCH_NOP|NV_NCW, 0},
{'[', nv_brackets, NV_NCH_ALW, BACKWARD},
{'\\', nv_error, 0, 0},
{']', nv_brackets, NV_NCH_ALW, FORWARD},
{'^', nv_beginline, 0, BL_WHITE | BL_FIX},
{'_', nv_lineop, 0, 0},
{'`', nv_gomark, NV_NCH_ALW, FALSE},
{'a', nv_edit, NV_NCH, 0},
{'b', nv_bck_word, 0, 0},
{'c', nv_operator, 0, 0},
{'d', nv_operator, 0, 0},
{'e', nv_wordcmd, 0, FALSE},
{'f', nv_csearch, NV_NCH_ALW|NV_LANG, FORWARD},
{'g', nv_g_cmd, NV_NCH_ALW, FALSE},
{'h', nv_left, NV_RL, 0},
{'i', nv_edit, NV_NCH, 0},
{'j', nv_down, 0, FALSE},
{'k', nv_up, 0, FALSE},
{'l', nv_right, NV_RL, 0},
{'m', nv_mark, NV_NCH_NOP, 0},
{'n', nv_next, 0, 0},
{'o', nv_open, 0, 0},
{'p', nv_put, 0, 0},
{'q', nv_record, NV_NCH, 0},
{'r', nv_replace, NV_NCH_NOP|NV_LANG, 0},
{'s', nv_subst, NV_KEEPREG, 0},
{'t', nv_csearch, NV_NCH_ALW|NV_LANG, FORWARD},
{'u', nv_undo, 0, 0},
{'w', nv_wordcmd, 0, FALSE},
{'x', nv_abbrev, NV_KEEPREG, 0},
{'y', nv_operator, 0, 0},
{'z', nv_zet, NV_NCH_ALW, 0},
{'{', nv_findpar, 0, BACKWARD},
{'|', nv_pipe, 0, 0},
{'}', nv_findpar, 0, FORWARD},
{'~', nv_tilde, 0, 0},
/* pound sign */
{POUND, nv_ident, 0, 0},
#ifdef FEAT_MOUSE
{K_MOUSEUP, nv_mousescroll, 0, TRUE},
{K_MOUSEDOWN, nv_mousescroll, 0, FALSE},
{K_LEFTMOUSE, nv_mouse, 0, 0},
{K_LEFTMOUSE_NM, nv_mouse, 0, 0},
{K_LEFTDRAG, nv_mouse, 0, 0},
{K_LEFTRELEASE, nv_mouse, 0, 0},
{K_LEFTRELEASE_NM, nv_mouse, 0, 0},
{K_MIDDLEMOUSE, nv_mouse, 0, 0},
{K_MIDDLEDRAG, nv_mouse, 0, 0},
{K_MIDDLERELEASE, nv_mouse, 0, 0},
{K_RIGHTMOUSE, nv_mouse, 0, 0},
{K_RIGHTDRAG, nv_mouse, 0, 0},
{K_RIGHTRELEASE, nv_mouse, 0, 0},
{K_X1MOUSE, nv_mouse, 0, 0},
{K_X1DRAG, nv_mouse, 0, 0},
{K_X1RELEASE, nv_mouse, 0, 0},
{K_X2MOUSE, nv_mouse, 0, 0},
{K_X2DRAG, nv_mouse, 0, 0},
{K_X2RELEASE, nv_mouse, 0, 0},
#endif
{K_IGNORE, nv_ignore, NV_KEEPREG, 0},
{K_NOP, nv_nop, 0, 0},
{K_INS, nv_edit, 0, 0},
{K_KINS, nv_edit, 0, 0},
{K_BS, nv_ctrlh, 0, 0},
{K_UP, nv_up, NV_SSS|NV_STS, FALSE},
{K_S_UP, nv_page, NV_SS, BACKWARD},
{K_DOWN, nv_down, NV_SSS|NV_STS, FALSE},
{K_S_DOWN, nv_page, NV_SS, FORWARD},
{K_LEFT, nv_left, NV_SSS|NV_STS|NV_RL, 0},
{K_S_LEFT, nv_bck_word, NV_SS|NV_RL, 0},
{K_C_LEFT, nv_bck_word, NV_SSS|NV_RL|NV_STS, 1},
{K_RIGHT, nv_right, NV_SSS|NV_STS|NV_RL, 0},
{K_S_RIGHT, nv_wordcmd, NV_SS|NV_RL, FALSE},
{K_C_RIGHT, nv_wordcmd, NV_SSS|NV_RL|NV_STS, TRUE},
{K_PAGEUP, nv_page, NV_SSS|NV_STS, BACKWARD},
{K_KPAGEUP, nv_page, NV_SSS|NV_STS, BACKWARD},
{K_PAGEDOWN, nv_page, NV_SSS|NV_STS, FORWARD},
{K_KPAGEDOWN, nv_page, NV_SSS|NV_STS, FORWARD},
{K_END, nv_end, NV_SSS|NV_STS, FALSE},
{K_KEND, nv_end, NV_SSS|NV_STS, FALSE},
{K_S_END, nv_end, NV_SS, FALSE},
{K_C_END, nv_end, NV_SSS|NV_STS, TRUE},
{K_HOME, nv_home, NV_SSS|NV_STS, 0},
{K_KHOME, nv_home, NV_SSS|NV_STS, 0},
{K_S_HOME, nv_home, NV_SS, 0},
{K_C_HOME, nv_goto, NV_SSS|NV_STS, FALSE},
{K_DEL, nv_abbrev, 0, 0},
{K_KDEL, nv_abbrev, 0, 0},
{K_UNDO, nv_kundo, 0, 0},
{K_HELP, nv_help, NV_NCW, 0},
{K_F1, nv_help, NV_NCW, 0},
{K_XF1, nv_help, NV_NCW, 0},
#ifdef FEAT_VISUAL
{K_SELECT, nv_select, 0, 0},
#endif
#ifdef FEAT_GUI
{K_VER_SCROLLBAR, nv_ver_scrollbar, 0, 0},
{K_HOR_SCROLLBAR, nv_hor_scrollbar, 0, 0},
#endif
#ifdef FEAT_GUI_TABLINE
{K_TABLINE, nv_tabline, 0, 0},
{K_TABMENU, nv_tabmenu, 0, 0},
#endif
#ifdef FEAT_FKMAP
{K_F8, farsi_fkey, 0, 0},
{K_F9, farsi_fkey, 0, 0},
#endif
#ifdef FEAT_SNIFF
{K_SNIFF, nv_sniff, 0, 0},
#endif
#ifdef FEAT_NETBEANS_INTG
{K_F21, nv_nbcmd, NV_NCH_ALW, 0},
#endif
#ifdef FEAT_DND
{K_DROP, nv_drop, NV_STS, 0},
#endif
#ifdef FEAT_AUTOCMD
{K_CURSORHOLD, nv_cursorhold, NV_KEEPREG, 0},
#endif
};
/* Number of commands in nv_cmds[]. */
#define NV_CMDS_SIZE (sizeof(nv_cmds) / sizeof(struct nv_cmd))
/* Sorted index of commands in nv_cmds[]. */
static short nv_cmd_idx[NV_CMDS_SIZE];
/* The highest index for which
* nv_cmds[idx].cmd_char == nv_cmd_idx[nv_cmds[idx].cmd_char] */
static int nv_max_linear;
/*
* Compare functions for qsort() below, that checks the command character
* through the index in nv_cmd_idx[].
*/
static int
#ifdef __BORLANDC__
_RTLENTRYF
#endif
nv_compare(s1, s2)
const void *s1;
const void *s2;
{
int c1, c2;
/* The commands are sorted on absolute value. */
c1 = nv_cmds[*(const short *)s1].cmd_char;
c2 = nv_cmds[*(const short *)s2].cmd_char;
if (c1 < 0)
c1 = -c1;
if (c2 < 0)
c2 = -c2;
return c1 - c2;
}
/*
* Initialize the nv_cmd_idx[] table.
*/
void
init_normal_cmds()
{
int i;
/* Fill the index table with a one to one relation. */
for (i = 0; i < (int)NV_CMDS_SIZE; ++i)
nv_cmd_idx[i] = i;
/* Sort the commands by the command character. */
qsort((void *)&nv_cmd_idx, (size_t)NV_CMDS_SIZE, sizeof(short), nv_compare);
/* Find the first entry that can't be indexed by the command character. */
for (i = 0; i < (int)NV_CMDS_SIZE; ++i)
if (i != nv_cmds[nv_cmd_idx[i]].cmd_char)
break;
nv_max_linear = i - 1;
}
/*
* Search for a command in the commands table.
* Returns -1 for invalid command.
*/
static int
find_command(cmdchar)
int cmdchar;
{
int i;
int idx;
int top, bot;
int c;
#ifdef FEAT_MBYTE
/* A multi-byte character is never a command. */
if (cmdchar >= 0x100)
return -1;
#endif
/* We use the absolute value of the character. Special keys have a
* negative value, but are sorted on their absolute value. */
if (cmdchar < 0)
cmdchar = -cmdchar;
/* If the character is in the first part: The character is the index into
* nv_cmd_idx[]. */
if (cmdchar <= nv_max_linear)
return nv_cmd_idx[cmdchar];
/* Perform a binary search. */
bot = nv_max_linear + 1;
top = NV_CMDS_SIZE - 1;
idx = -1;
while (bot <= top)
{
i = (top + bot) / 2;
c = nv_cmds[nv_cmd_idx[i]].cmd_char;
if (c < 0)
c = -c;
if (cmdchar == c)
{
idx = nv_cmd_idx[i];
break;
}
if (cmdchar > c)
bot = i + 1;
else
top = i - 1;
}
return idx;
}
/*
* Execute a command in Normal mode.
*/
void
normal_cmd(oap, toplevel)
oparg_T *oap;
int toplevel UNUSED; /* TRUE when called from main() */
{
cmdarg_T ca; /* command arguments */
int c;
int ctrl_w = FALSE; /* got CTRL-W command */
int old_col = curwin->w_curswant;
#ifdef FEAT_CMDL_INFO
int need_flushbuf; /* need to call out_flush() */
#endif
#ifdef FEAT_VISUAL
pos_T old_pos; /* cursor position before command */
int mapped_len;
static int old_mapped_len = 0;
#endif
int idx;
#ifdef FEAT_EVAL
int set_prevcount = FALSE;
#endif
vim_memset(&ca, 0, sizeof(ca)); /* also resets ca.retval */
ca.oap = oap;
/* Use a count remembered from before entering an operator. After typing
* "3d" we return from normal_cmd() and come back here, the "3" is
* remembered in "opcount". */
ca.opcount = opcount;
#ifdef FEAT_SNIFF
want_sniff_request = sniff_connected;
#endif
/*
* If there is an operator pending, then the command we take this time
* will terminate it. Finish_op tells us to finish the operation before
* returning this time (unless the operation was cancelled).
*/
#ifdef CURSOR_SHAPE
c = finish_op;
#endif
finish_op = (oap->op_type != OP_NOP);
#ifdef CURSOR_SHAPE
if (finish_op != c)
{
ui_cursor_shape(); /* may show different cursor shape */
# ifdef FEAT_MOUSESHAPE
update_mouseshape(-1);
# endif
}
#endif
/* When not finishing an operator and no register name typed, reset the
* count. */
if (!finish_op && !oap->regname)
{
ca.opcount = 0;
#ifdef FEAT_EVAL
set_prevcount = TRUE;
#endif
}
#ifdef FEAT_AUTOCMD
/* Restore counts from before receiving K_CURSORHOLD. This means after
* typing "3", handling K_CURSORHOLD and then typing "2" we get "32", not
* "3 * 2". */
if (oap->prev_opcount > 0 || oap->prev_count0 > 0)
{
ca.opcount = oap->prev_opcount;
ca.count0 = oap->prev_count0;
oap->prev_opcount = 0;
oap->prev_count0 = 0;
}
#endif
#ifdef FEAT_VISUAL
mapped_len = typebuf_maplen();
#endif
State = NORMAL_BUSY;
#ifdef USE_ON_FLY_SCROLL
dont_scroll = FALSE; /* allow scrolling here */
#endif
/*
* Get the command character from the user.
*/
c = safe_vgetc();
LANGMAP_ADJUST(c, TRUE);
#ifdef FEAT_VISUAL
/*
* If a mapping was started in Visual or Select mode, remember the length
* of the mapping. This is used below to not return to Insert mode for as
* long as the mapping is being executed.
*/
if (restart_edit == 0)
old_mapped_len = 0;
else if (old_mapped_len
|| (VIsual_active && mapped_len == 0 && typebuf_maplen() > 0))
old_mapped_len = typebuf_maplen();
#endif
if (c == NUL)
c = K_ZERO;
#ifdef FEAT_VISUAL
/*
* In Select mode, typed text replaces the selection.
*/
if (VIsual_active
&& VIsual_select
&& (vim_isprintc(c) || c == NL || c == CAR || c == K_KENTER))
{
/* Fake a "c"hange command. When "restart_edit" is set (e.g., because
* 'insertmode' is set) fake a "d"elete command, Insert mode will
* restart automatically.
* Insert the typed character in the typeahead buffer, so that it can
* be mapped in Insert mode. Required for ":lmap" to work. */
ins_char_typebuf(c);
if (restart_edit != 0)
c = 'd';
else
c = 'c';
msg_nowait = TRUE; /* don't delay going to insert mode */
}
#endif
#ifdef FEAT_CMDL_INFO
need_flushbuf = add_to_showcmd(c);
#endif
getcount:
#ifdef FEAT_VISUAL
if (!(VIsual_active && VIsual_select))
#endif
{
/*
* Handle a count before a command and compute ca.count0.
* Note that '0' is a command and not the start of a count, but it's
* part of a count after other digits.
*/
while ( (c >= '1' && c <= '9')
|| (ca.count0 != 0 && (c == K_DEL || c == K_KDEL || c == '0')))
{
if (c == K_DEL || c == K_KDEL)
{
ca.count0 /= 10;
#ifdef FEAT_CMDL_INFO
del_from_showcmd(4); /* delete the digit and ~@% */
#endif
}
else
ca.count0 = ca.count0 * 10 + (c - '0');
if (ca.count0 < 0) /* got too large! */
ca.count0 = 999999999L;
#ifdef FEAT_EVAL
/* Set v:count here, when called from main() and not a stuffed
* command, so that v:count can be used in an expression mapping
* right after the count. */
if (toplevel && stuff_empty())
{
long count = ca.count0;
/* multiply with ca.opcount the same way as below */
if (ca.opcount != 0)
count = ca.opcount * (count == 0 ? 1 : count);
set_vcount(count, count == 0 ? 1 : count, set_prevcount);
set_prevcount = FALSE; /* only set v:prevcount once */
}
#endif
if (ctrl_w)
{
++no_mapping;
++allow_keys; /* no mapping for nchar, but keys */
}
++no_zero_mapping; /* don't map zero here */
c = plain_vgetc();
LANGMAP_ADJUST(c, TRUE);
--no_zero_mapping;
if (ctrl_w)
{
--no_mapping;
--allow_keys;
}
#ifdef FEAT_CMDL_INFO
need_flushbuf |= add_to_showcmd(c);
#endif
}
/*
* If we got CTRL-W there may be a/another count
*/
if (c == Ctrl_W && !ctrl_w && oap->op_type == OP_NOP)
{
ctrl_w = TRUE;
ca.opcount = ca.count0; /* remember first count */
ca.count0 = 0;
++no_mapping;
++allow_keys; /* no mapping for nchar, but keys */
c = plain_vgetc(); /* get next character */
LANGMAP_ADJUST(c, TRUE);
--no_mapping;
--allow_keys;
#ifdef FEAT_CMDL_INFO
need_flushbuf |= add_to_showcmd(c);
#endif
goto getcount; /* jump back */
}
}
#ifdef FEAT_AUTOCMD
if (c == K_CURSORHOLD)
{
/* Save the count values so that ca.opcount and ca.count0 are exactly
* the same when coming back here after handling K_CURSORHOLD. */
oap->prev_opcount = ca.opcount;
oap->prev_count0 = ca.count0;
}
else
#endif
if (ca.opcount != 0)
{
/*
* If we're in the middle of an operator (including after entering a
* yank buffer with '"') AND we had a count before the operator, then
* that count overrides the current value of ca.count0.
* What this means effectively, is that commands like "3dw" get turned
* into "d3w" which makes things fall into place pretty neatly.
* If you give a count before AND after the operator, they are
* multiplied.
*/
if (ca.count0)
ca.count0 *= ca.opcount;
else
ca.count0 = ca.opcount;
}
/*
* Always remember the count. It will be set to zero (on the next call,
* above) when there is no pending operator.
* When called from main(), save the count for use by the "count" built-in
* variable.
*/
ca.opcount = ca.count0;
ca.count1 = (ca.count0 == 0 ? 1 : ca.count0);
#ifdef FEAT_EVAL
/*
* Only set v:count when called from main() and not a stuffed command.
*/
if (toplevel && stuff_empty())
set_vcount(ca.count0, ca.count1, set_prevcount);
#endif
/*
* Find the command character in the table of commands.
* For CTRL-W we already got nchar when looking for a count.
*/
if (ctrl_w)
{
ca.nchar = c;
ca.cmdchar = Ctrl_W;
}
else
ca.cmdchar = c;
idx = find_command(ca.cmdchar);
if (idx < 0)
{
/* Not a known command: beep. */
clearopbeep(oap);
goto normal_end;
}
if (text_locked() && (nv_cmds[idx].cmd_flags & NV_NCW))
{
/* This command is not allowed while editing a ccmdline: beep. */
clearopbeep(oap);
text_locked_msg();
goto normal_end;
}
#ifdef FEAT_AUTOCMD
if ((nv_cmds[idx].cmd_flags & NV_NCW) && curbuf_locked())
goto normal_end;
#endif
#ifdef FEAT_VISUAL
/*
* In Visual/Select mode, a few keys are handled in a special way.
*/
if (VIsual_active)
{
/* when 'keymodel' contains "stopsel" may stop Select/Visual mode */
if (km_stopsel
&& (nv_cmds[idx].cmd_flags & NV_STS)
&& !(mod_mask & MOD_MASK_SHIFT))
{
end_visual_mode();
redraw_curbuf_later(INVERTED);
}
/* Keys that work different when 'keymodel' contains "startsel" */
if (km_startsel)
{
if (nv_cmds[idx].cmd_flags & NV_SS)
{
unshift_special(&ca);
idx = find_command(ca.cmdchar);
if (idx < 0)
{
/* Just in case */
clearopbeep(oap);
goto normal_end;
}
}
else if ((nv_cmds[idx].cmd_flags & NV_SSS)
&& (mod_mask & MOD_MASK_SHIFT))
{
mod_mask &= ~MOD_MASK_SHIFT;
}
}
}
#endif
#ifdef FEAT_RIGHTLEFT
if (curwin->w_p_rl && KeyTyped && !KeyStuffed
&& (nv_cmds[idx].cmd_flags & NV_RL))
{
/* Invert horizontal movements and operations. Only when typed by the
* user directly, not when the result of a mapping or "x" translated
* to "dl". */
switch (ca.cmdchar)
{
case 'l': ca.cmdchar = 'h'; break;
case K_RIGHT: ca.cmdchar = K_LEFT; break;
case K_S_RIGHT: ca.cmdchar = K_S_LEFT; break;
case K_C_RIGHT: ca.cmdchar = K_C_LEFT; break;
case 'h': ca.cmdchar = 'l'; break;
case K_LEFT: ca.cmdchar = K_RIGHT; break;
case K_S_LEFT: ca.cmdchar = K_S_RIGHT; break;
case K_C_LEFT: ca.cmdchar = K_C_RIGHT; break;
case '>': ca.cmdchar = '<'; break;
case '<': ca.cmdchar = '>'; break;
}
idx = find_command(ca.cmdchar);
}
#endif
/*
* Get an additional character if we need one.
*/
if ((nv_cmds[idx].cmd_flags & NV_NCH)
&& (((nv_cmds[idx].cmd_flags & NV_NCH_NOP) == NV_NCH_NOP
&& oap->op_type == OP_NOP)
|| (nv_cmds[idx].cmd_flags & NV_NCH_ALW) == NV_NCH_ALW
|| (ca.cmdchar == 'q'
&& oap->op_type == OP_NOP
&& !Recording
&& !Exec_reg)
|| ((ca.cmdchar == 'a' || ca.cmdchar == 'i')
&& (oap->op_type != OP_NOP
#ifdef FEAT_VISUAL
|| VIsual_active
#endif
))))
{
int *cp;
int repl = FALSE; /* get character for replace mode */
int lit = FALSE; /* get extra character literally */
int langmap_active = FALSE; /* using :lmap mappings */
int lang; /* getting a text character */
#ifdef USE_IM_CONTROL
int save_smd; /* saved value of p_smd */
#endif
++no_mapping;
++allow_keys; /* no mapping for nchar, but allow key codes */
#ifdef FEAT_AUTOCMD
/* Don't generate a CursorHold event here, most commands can't handle
* it, e.g., nv_replace(), nv_csearch(). */
did_cursorhold = TRUE;
#endif
if (ca.cmdchar == 'g')
{
/*
* For 'g' get the next character now, so that we can check for
* "gr", "g'" and "g`".
*/
ca.nchar = plain_vgetc();
LANGMAP_ADJUST(ca.nchar, TRUE);
#ifdef FEAT_CMDL_INFO
need_flushbuf |= add_to_showcmd(ca.nchar);
#endif
if (ca.nchar == 'r' || ca.nchar == '\'' || ca.nchar == '`'
|| ca.nchar == Ctrl_BSL)
{
cp = &ca.extra_char; /* need to get a third character */
if (ca.nchar != 'r')
lit = TRUE; /* get it literally */
else
repl = TRUE; /* get it in replace mode */
}
else
cp = NULL; /* no third character needed */
}
else
{
if (ca.cmdchar == 'r') /* get it in replace mode */
repl = TRUE;
cp = &ca.nchar;
}
lang = (repl || (nv_cmds[idx].cmd_flags & NV_LANG));
/*
* Get a second or third character.
*/
if (cp != NULL)
{
#ifdef CURSOR_SHAPE
if (repl)
{
State = REPLACE; /* pretend Replace mode */
ui_cursor_shape(); /* show different cursor shape */
}
#endif
if (lang && curbuf->b_p_iminsert == B_IMODE_LMAP)
{
/* Allow mappings defined with ":lmap". */
--no_mapping;
--allow_keys;
if (repl)
State = LREPLACE;
else
State = LANGMAP;
langmap_active = TRUE;
}