File: //home/ubuntu/neovim/src/nvim/normal.c
//
// 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 <assert.h>
#include <ctype.h>
#include <inttypes.h>
#include <limits.h>
#include <stdbool.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <time.h>
#include "nvim/api/private/helpers.h"
#include "nvim/ascii_defs.h"
#include "nvim/autocmd.h"
#include "nvim/autocmd_defs.h"
#include "nvim/buffer.h"
#include "nvim/buffer_defs.h"
#include "nvim/change.h"
#include "nvim/charset.h"
#include "nvim/cmdhist.h"
#include "nvim/cursor.h"
#include "nvim/diff.h"
#include "nvim/digraph.h"
#include "nvim/drawscreen.h"
#include "nvim/edit.h"
#include "nvim/errors.h"
#include "nvim/eval.h"
#include "nvim/ex_cmds.h"
#include "nvim/ex_cmds2.h"
#include "nvim/ex_docmd.h"
#include "nvim/ex_eval.h"
#include "nvim/ex_getln.h"
#include "nvim/file_search.h"
#include "nvim/fileio.h"
#include "nvim/fold.h"
#include "nvim/getchar.h"
#include "nvim/gettext_defs.h"
#include "nvim/globals.h"
#include "nvim/grid.h"
#include "nvim/help.h"
#include "nvim/highlight.h"
#include "nvim/highlight_defs.h"
#include "nvim/keycodes.h"
#include "nvim/macros_defs.h"
#include "nvim/mapping.h"
#include "nvim/mark.h"
#include "nvim/mark_defs.h"
#include "nvim/math.h"
#include "nvim/mbyte.h"
#include "nvim/memline.h"
#include "nvim/memline_defs.h"
#include "nvim/memory.h"
#include "nvim/message.h"
#include "nvim/mouse.h"
#include "nvim/move.h"
#include "nvim/normal.h"
#include "nvim/ops.h"
#include "nvim/option.h"
#include "nvim/option_vars.h"
#include "nvim/os/input.h"
#include "nvim/os/time.h"
#include "nvim/plines.h"
#include "nvim/profile.h"
#include "nvim/quickfix.h"
#include "nvim/search.h"
#include "nvim/spell.h"
#include "nvim/spell_defs.h"
#include "nvim/spellfile.h"
#include "nvim/spellsuggest.h"
#include "nvim/state.h"
#include "nvim/state_defs.h"
#include "nvim/statusline.h"
#include "nvim/strings.h"
#include "nvim/syntax.h"
#include "nvim/tag.h"
#include "nvim/textformat.h"
#include "nvim/textobject.h"
#include "nvim/types_defs.h"
#include "nvim/ui.h"
#include "nvim/ui_defs.h"
#include "nvim/undo.h"
#include "nvim/vim_defs.h"
#include "nvim/window.h"
typedef struct {
VimState state;
bool command_finished;
bool ctrl_w;
bool need_flushbuf;
bool set_prevcount;
bool previous_got_int; // `got_int` was true
bool cmdwin; // command-line window normal mode
bool noexmode; // true if the normal mode was pushed from
// ex mode(:global or :visual for example)
bool toplevel; // top-level normal mode
oparg_T oa; // operator arguments
cmdarg_T ca; // command arguments
int mapped_len;
int old_mapped_len;
int idx;
int c;
int old_col;
pos_T old_pos;
} NormalState;
static int VIsual_mode_orig = NUL; // saved Visual mode
#ifdef INCLUDE_GENERATED_DECLARATIONS
# include "normal.c.generated.h"
#endif
static const char e_changelist_is_empty[] = N_("E664: Changelist is empty");
static const char e_cmdline_window_already_open[]
= N_("E1292: Command-line window is already open");
static inline void normal_state_init(NormalState *s)
{
memset(s, 0, sizeof(NormalState));
s->state.check = normal_check;
s->state.execute = normal_execute;
}
// 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 const 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)(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
uint16_t cmd_flags; ///< NV_ flags
int16_t 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 },
{ CAR, nv_down, 0, true },
{ Ctrl_N, nv_down, NV_STS, false },
{ Ctrl_O, nv_ctrlo, 0, 0 },
{ Ctrl_P, nv_up, NV_STS, false },
{ Ctrl_Q, nv_visual, 0, false },
{ Ctrl_R, nv_redo_or_register, 0, 0 },
{ Ctrl_S, nv_ignore, 0, 0 },
{ Ctrl_T, nv_tagpop, NV_NCW, 0 },
{ Ctrl_U, nv_halfpage, 0, 0 },
{ Ctrl_V, nv_visual, 0, false },
{ 'V', nv_visual, 0, false },
{ 'v', nv_visual, 0, false },
{ 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_regreplay, 0, 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 },
{ K_MOUSEUP, nv_mousescroll, 0, MSCR_UP },
{ K_MOUSEDOWN, nv_mousescroll, 0, MSCR_DOWN },
{ K_MOUSELEFT, nv_mousescroll, 0, MSCR_LEFT },
{ K_MOUSERIGHT, nv_mousescroll, 0, MSCR_RIGHT },
{ 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_MOUSEMOVE, 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 },
{ 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 },
{ K_SELECT, nv_select, 0, 0 },
{ K_EVENT, nv_event, NV_KEEPREG, 0 },
{ K_COMMAND, nv_colon, 0, 0 },
{ K_LUA, nv_colon, 0, 0 },
};
// Number of commands in nv_cmds[].
#define NV_CMDS_SIZE ARRAY_SIZE(nv_cmds)
// Sorted index of commands in nv_cmds[].
static int16_t 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 nv_compare(const void *s1, const void *s2)
{
// The commands are sorted on absolute value.
int c1 = nv_cmds[*(const int16_t *)s1].cmd_char;
int c2 = nv_cmds[*(const int16_t *)s2].cmd_char;
if (c1 < 0) {
c1 = -c1;
}
if (c2 < 0) {
c2 = -c2;
}
return c1 == c2 ? 0 : c1 > c2 ? 1 : -1;
}
/// Initialize the nv_cmd_idx[] table.
void init_normal_cmds(void)
{
assert(NV_CMDS_SIZE <= SHRT_MAX);
// Fill the index table with a one to one relation.
for (int16_t i = 0; i < (int16_t)NV_CMDS_SIZE; i++) {
nv_cmd_idx[i] = i;
}
// Sort the commands by the command character.
qsort(&nv_cmd_idx, NV_CMDS_SIZE, sizeof(int16_t), nv_compare);
// Find the first entry that can't be indexed by the command character.
int16_t i;
for (i = 0; i < (int16_t)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.
///
/// @return -1 for invalid command.
static int find_command(int cmdchar)
{
// A multi-byte character is never a command.
if (cmdchar >= 0x100) {
return -1;
}
// 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[].
assert(nv_max_linear < (int)NV_CMDS_SIZE);
if (cmdchar <= nv_max_linear) {
return nv_cmd_idx[cmdchar];
}
// Perform a binary search.
int bot = nv_max_linear + 1;
int top = NV_CMDS_SIZE - 1;
int idx = -1;
while (bot <= top) {
int i = (top + bot) / 2;
int 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;
}
/// If currently editing a cmdline or text is locked: beep and give an error
/// message, return true.
static bool check_text_locked(oparg_T *oap)
{
if (!text_locked()) {
return false;
}
if (oap != NULL) {
clearopbeep(oap);
}
text_locked_msg();
return true;
}
/// If text is locked, "curbuf->b_ro_locked" or "allbuf_lock" is set:
/// Give an error message, possibly beep and return true.
/// "oap" may be NULL.
bool check_text_or_curbuf_locked(oparg_T *oap)
{
if (check_text_locked(oap)) {
return true;
}
if (!curbuf_locked()) {
return false;
}
if (oap != NULL) {
clearop(oap);
}
return true;
}
static oparg_T *current_oap = NULL;
/// Check if an operator was started but not finished yet.
/// Includes typing a count or a register name.
bool op_pending(void)
{
return !(current_oap != NULL
&& !finish_op
&& current_oap->prev_opcount == 0
&& current_oap->prev_count0 == 0
&& current_oap->op_type == OP_NOP
&& current_oap->regname == NUL);
}
/// Normal state entry point. This is called on:
///
/// - Startup, In this case the function never returns.
/// - The command-line window is opened(`q:`). Returns when `cmdwin_result` != 0.
/// - The :visual command is called from :global in ex mode, `:global/PAT/visual`
/// for example. Returns when re-entering ex mode(because ex mode recursion is
/// not allowed)
///
/// This used to be called main_loop() on main.c
void normal_enter(bool cmdwin, bool noexmode)
{
NormalState state;
normal_state_init(&state);
oparg_T *prev_oap = current_oap;
current_oap = &state.oa;
state.cmdwin = cmdwin;
state.noexmode = noexmode;
state.toplevel = (!cmdwin || cmdwin_result == 0) && !noexmode;
state_enter(&state.state);
current_oap = prev_oap;
}
static void normal_prepare(NormalState *s)
{
CLEAR_FIELD(s->ca); // also resets s->ca.retval
s->ca.oap = &s->oa;
// 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".
s->ca.opcount = opcount;
// 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).
int c = finish_op;
finish_op = (s->oa.op_type != OP_NOP);
if (finish_op != c) {
ui_cursor_shape(); // may show different cursor shape
}
may_trigger_modechanged();
// When not finishing an operator and no register name typed, reset the count.
if (!finish_op && !s->oa.regname) {
s->ca.opcount = 0;
s->set_prevcount = true;
}
// Restore counts from before receiving K_EVENT. This means after
// typing "3", handling K_EVENT and then typing "2" we get "32", not
// "3 * 2".
if (s->oa.prev_opcount > 0 || s->oa.prev_count0 > 0) {
s->ca.opcount = s->oa.prev_opcount;
s->ca.count0 = s->oa.prev_count0;
s->oa.prev_opcount = 0;
s->oa.prev_count0 = 0;
}
s->mapped_len = typebuf_maplen();
State = MODE_NORMAL_BUSY;
// Set v:count here, when called from main() and not a stuffed command, so
// that v:count can be used in an expression mapping when there is no count.
// Do set it for redo
if (s->toplevel && readbuf1_empty()) {
set_vcount_ca(&s->ca, &s->set_prevcount);
}
}
static bool normal_handle_special_visual_command(NormalState *s)
{
// when 'keymodel' contains "stopsel" may stop Select/Visual mode
if (km_stopsel
&& (nv_cmds[s->idx].cmd_flags & NV_STS)
&& !(mod_mask & MOD_MASK_SHIFT)) {
end_visual_mode();
redraw_curbuf_later(UPD_INVERTED);
}
// Keys that work different when 'keymodel' contains "startsel"
if (km_startsel) {
if (nv_cmds[s->idx].cmd_flags & NV_SS) {
unshift_special(&s->ca);
s->idx = find_command(s->ca.cmdchar);
if (s->idx < 0) {
// Just in case
clearopbeep(&s->oa);
return true;
}
} else if ((nv_cmds[s->idx].cmd_flags & NV_SSS)
&& (mod_mask & MOD_MASK_SHIFT)) {
mod_mask &= ~MOD_MASK_SHIFT;
}
}
return false;
}
static bool normal_need_additional_char(NormalState *s)
{
int flags = nv_cmds[s->idx].cmd_flags;
bool pending_op = s->oa.op_type != OP_NOP;
int cmdchar = s->ca.cmdchar;
// without NV_NCH we never need to check for an additional char
return flags & NV_NCH && (
// NV_NCH_NOP is set and no operator is pending, get a second char
((flags & NV_NCH_NOP) == NV_NCH_NOP && !pending_op)
// NV_NCH_ALW is set, always get a second char
|| (flags & NV_NCH_ALW) == NV_NCH_ALW
// 'q' without a pending operator, recording or executing a register,
// needs to be followed by a second char, examples:
// - qc => record using register c
// - q: => open command-line window
|| (cmdchar == 'q'
&& !pending_op
&& reg_recording == 0
&& reg_executing == 0)
// 'a' or 'i' after an operator is a text object, examples:
// - ciw => change inside word
// - da( => delete parenthesis and everything inside.
// Also, don't do anything when these keys are received in visual mode
// so just get another char.
//
// TODO(tarruda): Visual state needs to be refactored into a
// separate state that "inherits" from normal state.
|| ((cmdchar == 'a' || cmdchar == 'i')
&& (pending_op || VIsual_active)));
}
static bool normal_need_redraw_mode_message(NormalState *s)
{
// In Visual mode and with "^O" in Insert mode, a short message will be
// overwritten by the mode message. Wait a bit, until a key is hit.
// In Visual mode, it's more important to keep the Visual area updated
// than keeping a message (e.g. from a /pat search).
// Only do this if the command was typed, not from a mapping.
// Don't wait when emsg_silent is non-zero.
// Also wait a bit after an error message, e.g. for "^O:".
// Don't redraw the screen, it would remove the message.
return (
// 'showmode' is set and messages can be printed
((p_smd && msg_silent == 0
// must restart insert mode(ctrl+o or ctrl+l) or we just entered visual
// mode
&& (restart_edit != 0 || (VIsual_active
&& s->old_pos.lnum == curwin->w_cursor.lnum
&& s->old_pos.col == curwin->w_cursor.col))
// command-line must be cleared or redrawn
&& (clear_cmdline || redraw_cmdline)
// some message was printed or scrolled
&& (msg_didout || (msg_didany && msg_scroll))
// it is fine to remove the current message
&& !msg_nowait
// the command was the result of direct user input and not a mapping
&& KeyTyped)
// must restart insert mode, not in visual mode and error message is
// being shown
|| (restart_edit != 0 && !VIsual_active && msg_scroll
&& emsg_on_display))
// no register was used
&& s->oa.regname == 0
&& !(s->ca.retval & CA_COMMAND_BUSY)
&& stuff_empty()
&& typebuf_typed()
&& emsg_silent == 0
&& !in_assert_fails
&& !did_wait_return
&& s->oa.op_type == OP_NOP);
}
static void normal_redraw_mode_message(NormalState *s)
{
int save_State = State;
// Draw the cursor with the right shape here
if (restart_edit != 0) {
State = MODE_INSERT;
}
// If need to redraw, and there is a "keep_msg", redraw before the
// delay
if (must_redraw && keep_msg != NULL && !emsg_on_display) {
char *kmsg;
kmsg = keep_msg;
keep_msg = NULL;
// Showmode() will clear keep_msg, but we want to use it anyway.
// First update w_topline.
setcursor();
update_screen();
// now reset it, otherwise it's put in the history again
keep_msg = kmsg;
kmsg = xstrdup(keep_msg);
msg(kmsg, keep_msg_attr);
xfree(kmsg);
}
setcursor();
ui_cursor_shape(); // show different cursor shape
ui_flush();
if (msg_scroll || emsg_on_display) {
os_delay(1003, true); // wait at least one second
}
os_delay(3003, false); // wait up to three seconds
State = save_State;
msg_scroll = false;
emsg_on_display = false;
}
// TODO(tarruda): Split into a "normal pending" state that can handle K_EVENT
static void normal_get_additional_char(NormalState *s)
{
int *cp;
bool repl = false; // get character for replace mode
bool lit = false; // get extra character literally
bool lang; // getting a text character
no_mapping++;
allow_keys++; // no mapping for nchar, but allow key codes
// Don't generate a CursorHold event here, most commands can't handle
// it, e.g., nv_replace(), nv_csearch().
did_cursorhold = true;
if (s->ca.cmdchar == 'g') {
// For 'g' get the next character now, so that we can check for
// "gr", "g'" and "g`".
s->ca.nchar = plain_vgetc();
LANGMAP_ADJUST(s->ca.nchar, true);
s->need_flushbuf |= add_to_showcmd(s->ca.nchar);
if (s->ca.nchar == 'r' || s->ca.nchar == '\'' || s->ca.nchar == '`'
|| s->ca.nchar == Ctrl_BSL) {
cp = &s->ca.extra_char; // need to get a third character
if (s->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 (s->ca.cmdchar == 'r') {
// get it in replace mode
repl = true;
}
cp = &s->ca.nchar;
}
lang = (repl || (nv_cmds[s->idx].cmd_flags & NV_LANG));
// Get a second or third character.
if (cp != NULL) {
bool langmap_active = false; // using :lmap mappings
if (repl) {
State = MODE_REPLACE; // pretend Replace mode
ui_cursor_shape_no_check_conceal(); // show different cursor shape
}
if (lang && curbuf->b_p_iminsert == B_IMODE_LMAP) {
// Allow mappings defined with ":lmap".
no_mapping--;
allow_keys--;
if (repl) {
State = MODE_LREPLACE;
} else {
State = MODE_LANGMAP;
}
langmap_active = true;
}
*cp = plain_vgetc();
if (langmap_active) {
// Undo the decrement done above
no_mapping++;
allow_keys++;
}
State = MODE_NORMAL_BUSY;
s->need_flushbuf |= add_to_showcmd(*cp);
if (!lit) {
// Typing CTRL-K gets a digraph.
if (*cp == Ctrl_K && ((nv_cmds[s->idx].cmd_flags & NV_LANG)
|| cp == &s->ca.extra_char)
&& vim_strchr(p_cpo, CPO_DIGRAPH) == NULL) {
s->c = get_digraph(false);
if (s->c > 0) {
*cp = s->c;
// Guessing how to update showcmd here...
del_from_showcmd(3);
s->need_flushbuf |= add_to_showcmd(*cp);
}
}
// adjust chars > 127, except after "tTfFr" commands
LANGMAP_ADJUST(*cp, !lang);
}
// When the next character is CTRL-\ a following CTRL-N means the
// command is aborted and we go to Normal mode.
if (cp == &s->ca.extra_char
&& s->ca.nchar == Ctrl_BSL
&& (s->ca.extra_char == Ctrl_N || s->ca.extra_char == Ctrl_G)) {
s->ca.cmdchar = Ctrl_BSL;
s->ca.nchar = s->ca.extra_char;
s->idx = find_command(s->ca.cmdchar);
} else if ((s->ca.nchar == 'n' || s->ca.nchar == 'N')
&& s->ca.cmdchar == 'g') {
s->ca.oap->op_type = get_op_type(*cp, NUL);
} else if (*cp == Ctrl_BSL) {
int towait = (p_ttm >= 0 ? (int)p_ttm : (int)p_tm);
// There is a busy wait here when typing "f<C-\>" and then
// something different from CTRL-N. Can't be avoided.
while ((s->c = vpeekc()) <= 0 && towait > 0) {
do_sleep(towait > 50 ? 50 : towait);
towait -= 50;
}
if (s->c > 0) {
s->c = plain_vgetc();
if (s->c != Ctrl_N && s->c != Ctrl_G) {
vungetc(s->c);
} else {
s->ca.cmdchar = Ctrl_BSL;
s->ca.nchar = s->c;
s->idx = find_command(s->ca.cmdchar);
assert(s->idx >= 0);
}
}
}
if (lang) {
// When getting a text character and the next character is a
// multi-byte character, it could be a composing character.
// However, don't wait for it to arrive. Also, do enable mapping,
// because if it's put back with vungetc() it's too late to apply
// mapping.
no_mapping--;
while ((s->c = vpeekc()) > 0
&& (s->c >= 0x100 || MB_BYTE2LEN(vpeekc()) > 1)) {
s->c = plain_vgetc();
if (!utf_iscomposing(s->c)) {
vungetc(s->c); // it wasn't, put it back
break;
} else if (s->ca.ncharC1 == 0) {
s->ca.ncharC1 = s->c;
} else {
s->ca.ncharC2 = s->c;
}
}
no_mapping++;
// Vim may be in a different mode when the user types the next key,
// but when replaying a recording the next key is already in the
// typeahead buffer, so record an <Ignore> before that to prevent
// the vpeekc() above from applying wrong mappings when replaying.
no_u_sync++;
gotchars_ignore();
no_u_sync--;
}
}
no_mapping--;
allow_keys--;
}
static void normal_invert_horizontal(NormalState *s)
{
switch (s->ca.cmdchar) {
case 'l':
s->ca.cmdchar = 'h'; break;
case K_RIGHT:
s->ca.cmdchar = K_LEFT; break;
case K_S_RIGHT:
s->ca.cmdchar = K_S_LEFT; break;
case K_C_RIGHT:
s->ca.cmdchar = K_C_LEFT; break;
case 'h':
s->ca.cmdchar = 'l'; break;
case K_LEFT:
s->ca.cmdchar = K_RIGHT; break;
case K_S_LEFT:
s->ca.cmdchar = K_S_RIGHT; break;
case K_C_LEFT:
s->ca.cmdchar = K_C_RIGHT; break;
case '>':
s->ca.cmdchar = '<'; break;
case '<':
s->ca.cmdchar = '>'; break;
}
s->idx = find_command(s->ca.cmdchar);
}
static bool normal_get_command_count(NormalState *s)
{
if (VIsual_active && VIsual_select) {
return false;
}
// 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 ((s->c >= '1' && s->c <= '9')
|| (s->ca.count0 != 0 && (s->c == K_DEL || s->c == K_KDEL || s->c == '0'))) {
if (s->c == K_DEL || s->c == K_KDEL) {
s->ca.count0 /= 10;
del_from_showcmd(4); // delete the digit and ~@%
} else if (s->ca.count0 > 99999999) {
s->ca.count0 = 999999999;
} else {
s->ca.count0 = s->ca.count0 * 10 + (s->c - '0');
}
// 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. Do set it for redo.
if (s->toplevel && readbuf1_empty()) {
set_vcount_ca(&s->ca, &s->set_prevcount);
}
if (s->ctrl_w) {
no_mapping++;
allow_keys++; // no mapping for nchar, but keys
}
no_zero_mapping++; // don't map zero here
s->c = plain_vgetc();
LANGMAP_ADJUST(s->c, true);
no_zero_mapping--;
if (s->ctrl_w) {
no_mapping--;
allow_keys--;
}
s->need_flushbuf |= add_to_showcmd(s->c);
}
// If we got CTRL-W there may be a/another count
if (s->c == Ctrl_W && !s->ctrl_w && s->oa.op_type == OP_NOP) {
s->ctrl_w = true;
s->ca.opcount = s->ca.count0; // remember first count
s->ca.count0 = 0;
no_mapping++;
allow_keys++; // no mapping for nchar, but keys
s->c = plain_vgetc(); // get next character
LANGMAP_ADJUST(s->c, true);
no_mapping--;
allow_keys--;
s->need_flushbuf |= add_to_showcmd(s->c);
return true;
}
return false;
}
static void normal_finish_command(NormalState *s)
{
if (s->command_finished) {
goto normal_end;
}
// If we didn't start or finish an operator, reset oap->regname, unless we
// need it later.
if (!finish_op
&& !s->oa.op_type
&& (s->idx < 0 || !(nv_cmds[s->idx].cmd_flags & NV_KEEPREG))) {
clearop(&s->oa);
set_reg_var(get_default_register_name());
}
// Get the length of mapped chars again after typing a count, second
// character or "z333<cr>".
if (s->old_mapped_len > 0) {
s->old_mapped_len = typebuf_maplen();
}
// If an operation is pending, handle it. But not for K_IGNORE or
// K_MOUSEMOVE.
if (s->ca.cmdchar != K_IGNORE && s->ca.cmdchar != K_MOUSEMOVE) {
do_pending_operator(&s->ca, s->old_col, false);
}
// Wait for a moment when a message is displayed that will be overwritten
// by the mode message.
if (normal_need_redraw_mode_message(s)) {
normal_redraw_mode_message(s);
}
// Finish up after executing a Normal mode command.
normal_end:
msg_nowait = false;
if (finish_op) {
set_reg_var(get_default_register_name());
}
const bool prev_finish_op = finish_op;
if (s->oa.op_type == OP_NOP) {
// Reset finish_op, in case it was set
finish_op = false;
may_trigger_modechanged();
}
// Redraw the cursor with another shape, if we were in Operator-pending
// mode or did a replace command.
if (prev_finish_op || s->ca.cmdchar == 'r'
|| (s->ca.cmdchar == 'g' && s->ca.nchar == 'r')) {
ui_cursor_shape(); // may show different cursor shape
}
if (s->oa.op_type == OP_NOP && s->oa.regname == 0
&& s->ca.cmdchar != K_EVENT) {
clear_showcmd();
}
checkpcmark(); // check if we moved since setting pcmark
xfree(s->ca.searchbuf);
mb_check_adjust_col(curwin); // #6203
if (curwin->w_p_scb && s->toplevel) {
validate_cursor(curwin); // may need to update w_leftcol
do_check_scrollbind(true);
}
if (curwin->w_p_crb && s->toplevel) {
validate_cursor(curwin); // may need to update w_leftcol
do_check_cursorbind();
}
// May restart edit(), if we got here with CTRL-O in Insert mode (but not
// if still inside a mapping that started in Visual mode).
// May switch from Visual to Select mode after CTRL-O command.
if (s->oa.op_type == OP_NOP
&& ((restart_edit != 0 && !VIsual_active && s->old_mapped_len == 0)
|| restart_VIsual_select == 1)
&& !(s->ca.retval & CA_COMMAND_BUSY)
&& stuff_empty()
&& s->oa.regname == 0) {
if (restart_VIsual_select == 1) {
VIsual_select = true;
VIsual_select_reg = 0;
may_trigger_modechanged();
showmode();
restart_VIsual_select = 0;
}
if (restart_edit != 0 && !VIsual_active && s->old_mapped_len == 0) {
edit(restart_edit, false, 1);
}
}
if (restart_VIsual_select == 2) {
restart_VIsual_select = 1;
}
// Save count before an operator for next time
opcount = s->ca.opcount;
}
static int normal_execute(VimState *state, int key)
{
NormalState *s = (NormalState *)state;
s->command_finished = false;
s->ctrl_w = false; // got CTRL-W command
s->old_col = curwin->w_curswant;
s->c = key;
LANGMAP_ADJUST(s->c, get_real_state() != MODE_SELECT);
// 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) {
s->old_mapped_len = 0;
} else if (s->old_mapped_len || (VIsual_active && s->mapped_len == 0
&& typebuf_maplen() > 0)) {
s->old_mapped_len = typebuf_maplen();
}
if (s->c == NUL) {
s->c = K_ZERO;
}
// In Select mode, typed text replaces the selection.
if (VIsual_active && VIsual_select && (vim_isprintc(s->c)
|| s->c == NL || s->c == CAR || s->c == K_KENTER)) {
// Fake a "c"hange command.
// When "restart_edit" 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.
int len = ins_char_typebuf(vgetc_char, vgetc_mod_mask, true);
// When recording and gotchars() was called the character will be
// recorded again, remove the previous recording.
if (KeyTyped) {
ungetchars(len);
}
if (restart_edit != 0) {
s->c = 'd';
} else {
s->c = 'c';
}
msg_nowait = true; // don't delay going to insert mode
s->old_mapped_len = 0; // do go to Insert mode
}
s->need_flushbuf = add_to_showcmd(s->c);
while (normal_get_command_count(s)) {}
if (s->c == K_EVENT) {
// Save the count values so that ca.opcount and ca.count0 are exactly
// the same when coming back here after handling K_EVENT.
s->oa.prev_opcount = s->ca.opcount;
s->oa.prev_count0 = s->ca.count0;
} else if (s->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 (s->ca.count0) {
if (s->ca.opcount >= 999999999 / s->ca.count0) {
s->ca.count0 = 999999999;
} else {
s->ca.count0 *= s->ca.opcount;
}
} else {
s->ca.count0 = s->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.
s->ca.opcount = s->ca.count0;
s->ca.count1 = (s->ca.count0 == 0 ? 1 : s->ca.count0);
// Only set v:count when called from main() and not a stuffed command.
// Do set it for redo.
if (s->toplevel && readbuf1_empty()) {
set_vcount(s->ca.count0, s->ca.count1, s->set_prevcount);
}
// Find the command character in the table of commands.
// For CTRL-W we already got nchar when looking for a count.
if (s->ctrl_w) {
s->ca.nchar = s->c;
s->ca.cmdchar = Ctrl_W;
} else {
s->ca.cmdchar = s->c;
}
s->idx = find_command(s->ca.cmdchar);
if (s->idx < 0) {
// Not a known command: beep.
clearopbeep(&s->oa);
s->command_finished = true;
goto finish;
}
if ((nv_cmds[s->idx].cmd_flags & NV_NCW) && check_text_or_curbuf_locked(&s->oa)) {
// this command is not allowed now
s->command_finished = true;
goto finish;
}
// In Visual/Select mode, a few keys are handled in a special way.
if (VIsual_active && normal_handle_special_visual_command(s)) {
s->command_finished = true;
goto finish;
}
if (curwin->w_p_rl && KeyTyped && !KeyStuffed
&& (nv_cmds[s->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".
normal_invert_horizontal(s);
}
// Get an additional character if we need one.
if (normal_need_additional_char(s)) {
normal_get_additional_char(s);
}
// Flush the showcmd characters onto the screen so we can see them while
// the command is being executed. Only do this when the shown command was
// actually displayed, otherwise this will slow down a lot when executing
// mappings.
if (s->need_flushbuf) {
ui_flush();
}
if (s->ca.cmdchar != K_IGNORE && s->ca.cmdchar != K_EVENT) {
did_cursorhold = false;
}
State = MODE_NORMAL;
if (s->ca.nchar == ESC || s->ca.extra_char == ESC) {
clearop(&s->oa);
s->command_finished = true;
goto finish;
}
if (s->ca.cmdchar != K_IGNORE) {
msg_didout = false; // don't scroll screen up for normal command
msg_col = 0;
}
s->old_pos = curwin->w_cursor; // remember where the cursor was
// When 'keymodel' contains "startsel" some keys start Select/Visual
// mode.
if (!VIsual_active && km_startsel) {
if (nv_cmds[s->idx].cmd_flags & NV_SS) {
start_selection();
unshift_special(&s->ca);
s->idx = find_command(s->ca.cmdchar);
assert(s->idx >= 0);
} else if ((nv_cmds[s->idx].cmd_flags & NV_SSS)
&& (mod_mask & MOD_MASK_SHIFT)) {
start_selection();
mod_mask &= ~MOD_MASK_SHIFT;
}
}
// Execute the command!
// Call the command function found in the commands table.
s->ca.arg = nv_cmds[s->idx].cmd_arg;
(nv_cmds[s->idx].cmd_func)(&s->ca);
finish:
normal_finish_command(s);
return 1;
}
static void normal_check_stuff_buffer(NormalState *s)
{
if (stuff_empty()) {
did_check_timestamps = false;
if (need_check_timestamps) {
check_timestamps(false);
}
if (need_wait_return) {
// if wait_return still needed call it now
wait_return(false);
}
}
}
static void normal_check_interrupt(NormalState *s)
{
// Reset "got_int" now that we got back to the main loop. Except when
// inside a ":g/pat/cmd" command, then the "got_int" needs to abort
// the ":g" command.
// For ":g/pat/vi" we reset "got_int" when used once. When used
// a second time we go back to Ex mode and abort the ":g" command.
if (got_int) {
if (s->noexmode && global_busy && !exmode_active
&& s->previous_got_int) {
// Typed two CTRL-C in a row: go back to ex mode as if "Q" was
// used and keep "got_int" set, so that it aborts ":g".
exmode_active = true;
State = MODE_NORMAL;
} else if (!global_busy || !exmode_active) {
if (!quit_more) {
// flush all buffers
vgetc();
}
got_int = false;
}
s->previous_got_int = true;
} else {
s->previous_got_int = false;
}
}
static void normal_check_window_scrolled(NormalState *s)
{
if (!finish_op) {
may_trigger_win_scrolled_resized();
}
}
static void normal_check_cursor_moved(NormalState *s)
{
// Trigger CursorMoved if the cursor moved.
if (!finish_op && has_event(EVENT_CURSORMOVED)
&& (last_cursormoved_win != curwin
|| !equalpos(last_cursormoved, curwin->w_cursor))) {
apply_autocmds(EVENT_CURSORMOVED, NULL, NULL, false, curbuf);
last_cursormoved_win = curwin;
last_cursormoved = curwin->w_cursor;
}
}
static void normal_check_text_changed(NormalState *s)
{
// Trigger TextChanged if changedtick differs.
if (!finish_op && has_event(EVENT_TEXTCHANGED)
&& curbuf->b_last_changedtick != buf_get_changedtick(curbuf)) {
apply_autocmds(EVENT_TEXTCHANGED, NULL, NULL, false, curbuf);
curbuf->b_last_changedtick = buf_get_changedtick(curbuf);
}
}
static void normal_check_buffer_modified(NormalState *s)
{
// Trigger BufModified if b_modified changed
if (!finish_op && has_event(EVENT_BUFMODIFIEDSET)
&& curbuf->b_changed_invalid == true) {
apply_autocmds(EVENT_BUFMODIFIEDSET, NULL, NULL, false, curbuf);
curbuf->b_changed_invalid = false;
}
}
/// If nothing is pending and we are going to wait for the user to
/// type a character, trigger SafeState.
static void normal_check_safe_state(NormalState *s)
{
may_trigger_safestate(!op_pending() && restart_edit == 0);
}
static void normal_check_folds(NormalState *s)
{
// Include a closed fold completely in the Visual area.
foldAdjustVisual();
// When 'foldclose' is set, apply 'foldlevel' to folds that don't
// contain the cursor.
// When 'foldopen' is "all", open the fold(s) under the cursor.
// This may mark the window for redrawing.
if (hasAnyFolding(curwin) && !char_avail()) {
foldCheckClose();
if (fdo_flags & FDO_ALL) {
foldOpenCursor();
}
}
}
static void normal_redraw(NormalState *s)
{
// Before redrawing, make sure w_topline is correct, and w_leftcol
// if lines don't wrap, and w_skipcol if lines wrap.
update_topline(curwin);
validate_cursor(curwin);
show_cursor_info_later(false);
if (must_redraw) {
update_screen();
} else {
redraw_statuslines();
if (redraw_cmdline || clear_cmdline || redraw_mode) {
showmode();
}
}
if (need_maketitle) {
maketitle();
}
curbuf->b_last_used = time(NULL);
// Display message after redraw. If an external message is still visible,
// it contains the kept message already.
if (keep_msg != NULL && !msg_ext_is_visible()) {
char *const p = xstrdup(keep_msg);
// msg_start() will set keep_msg to NULL, make a copy
// first. Don't reset keep_msg, msg_attr_keep() uses it to
// check for duplicates. Never put this message in
// history.
msg_hist_off = true;
msg(p, keep_msg_attr);
msg_hist_off = false;
xfree(p);
}
// show fileinfo after redraw
if (need_fileinfo && !shortmess(SHM_FILEINFO)) {
fileinfo(false, true, false);
need_fileinfo = false;
}
emsg_on_display = false; // can delete error message now
did_emsg = false;
msg_didany = false; // reset lines_left in msg_start()
may_clear_sb_text(); // clear scroll-back text on next msg
setcursor();
}
/// Function executed before each iteration of normal mode.
///
/// @return:
/// 1 if the iteration should continue normally
/// -1 if the iteration should be skipped
/// 0 if the main loop must exit
static int normal_check(VimState *state)
{
NormalState *s = (NormalState *)state;
normal_check_stuff_buffer(s);
normal_check_interrupt(s);
// At the toplevel there is no exception handling. Discard any that
// may be hanging around (e.g. from "interrupt" at the debug prompt).
if (did_throw && !ex_normal_busy) {
discard_current_exception();
}
if (!exmode_active) {
msg_scroll = false;
}
quit_more = false;
state_no_longer_safe(NULL);
// If skip redraw is set (for ":" in wait_return()), don't redraw now.
// If there is nothing in the stuff_buffer or do_redraw is true,
// update cursor and redraw.
if (skip_redraw || exmode_active) {
skip_redraw = false;
setcursor();
} else if (do_redraw || stuff_empty()) {
// Ensure curwin->w_topline and curwin->w_leftcol are up to date
// before triggering a WinScrolled autocommand.
update_topline(curwin);
validate_cursor(curwin);
normal_check_cursor_moved(s);
normal_check_text_changed(s);
normal_check_window_scrolled(s);
normal_check_buffer_modified(s);
normal_check_safe_state(s);
// Updating diffs from changed() does not always work properly,
// esp. updating folds. Do an update just before redrawing if
// needed.
if (curtab->tp_diff_update || curtab->tp_diff_invalid) {
ex_diffupdate(NULL);
curtab->tp_diff_update = false;
}
// Scroll-binding for diff mode may have been postponed until
// here. Avoids doing it for every change.
if (diff_need_scrollbind) {
check_scrollbind(0, 0);
diff_need_scrollbind = false;
}
normal_check_folds(s);
normal_redraw(s);
do_redraw = false;
// Now that we have drawn the first screen all the startup stuff
// has been done, close any file for startup messages.
if (time_fd != NULL) {
TIME_MSG("first screen update");
time_finish();
}
// After the first screen update may start triggering WinScrolled
// autocmd events. Store all the scroll positions and sizes now.
may_make_initial_scroll_size_snapshot();
}
// May perform garbage collection when waiting for a character, but
// only at the very toplevel. Otherwise we may be using a List or
// Dict internally somewhere.
// "may_garbage_collect" is reset in vgetc() which is invoked through
// do_exmode() and normal_cmd().
may_garbage_collect = !s->cmdwin && !s->noexmode;
// Update w_curswant if w_set_curswant has been set.
// Postponed until here to avoid computing w_virtcol too often.
update_curswant();
if (exmode_active) {
if (s->noexmode) {
return 0;
}
do_exmode();
return -1;
}
if (s->cmdwin && cmdwin_result != 0) {
// command-line window and cmdwin_result is set
return 0;
}
normal_prepare(s);
return 1;
}
/// Set v:count and v:count1 according to "cap".
/// Set v:prevcount only when "set_prevcount" is true.
static void set_vcount_ca(cmdarg_T *cap, bool *set_prevcount)
{
int64_t count = cap->count0;
// multiply with cap->opcount the same way as above
if (cap->opcount != 0) {
count = cap->opcount * (count == 0 ? 1 : count);
}
set_vcount(count, count == 0 ? 1 : count, *set_prevcount);
*set_prevcount = false; // only set v:prevcount once
}
/// End Visual mode.
/// This function should ALWAYS be called to end Visual mode, except from
/// do_pending_operator().
void end_visual_mode(void)
{
VIsual_active = false;
setmouse();
mouse_dragging = 0;
// Save the current VIsual area for '< and '> marks, and "gv"
curbuf->b_visual.vi_mode = VIsual_mode;
curbuf->b_visual.vi_start = VIsual;
curbuf->b_visual.vi_end = curwin->w_cursor;
curbuf->b_visual.vi_curswant = curwin->w_curswant;
curbuf->b_visual_mode_eval = VIsual_mode;
if (!virtual_active(curwin)) {
curwin->w_cursor.coladd = 0;
}
may_clear_cmdline();
adjust_cursor_eol();
may_trigger_modechanged();
}
/// Reset VIsual_active and VIsual_reselect.
void reset_VIsual_and_resel(void)
{
if (VIsual_active) {
end_visual_mode();
redraw_curbuf_later(UPD_INVERTED); // delete the inversion later
}
VIsual_reselect = false;
}
/// Reset VIsual_active and VIsual_reselect if it's set.
void reset_VIsual(void)
{
if (VIsual_active) {
end_visual_mode();
redraw_curbuf_later(UPD_INVERTED); // delete the inversion later
VIsual_reselect = false;
}
}
void restore_visual_mode(void)
{
if (VIsual_mode_orig != NUL) {
curbuf->b_visual.vi_mode = VIsual_mode_orig;
VIsual_mode_orig = NUL;
}
}
/// Check for a balloon-eval special item to include when searching for an
/// identifier. When "dir" is BACKWARD "ptr[-1]" must be valid!
///
/// @return true if the character at "*ptr" should be included.
///
/// @param dir the direction of searching, is either FORWARD or BACKWARD
/// @param *colp is in/decremented if "ptr[-dir]" should also be included.
/// @param bnp points to a counter for square brackets.
static bool find_is_eval_item(const char *const ptr, int *const colp, int *const bnp, const int dir)
{
// Accept everything inside [].
if ((*ptr == ']' && dir == BACKWARD) || (*ptr == '[' && dir == FORWARD)) {
*bnp += 1;
}
if (*bnp > 0) {
if ((*ptr == '[' && dir == BACKWARD) || (*ptr == ']' && dir == FORWARD)) {
*bnp -= 1;
}
return true;
}
// skip over "s.var"
if (*ptr == '.') {
return true;
}
// two-character item: s->var
if (ptr[dir == BACKWARD ? 0 : 1] == '>'
&& ptr[dir == BACKWARD ? -1 : 0] == '-') {
*colp += dir;
return true;
}
return false;
}
/// Find the identifier under or to the right of the cursor.
/// "find_type" can have one of three values:
/// FIND_IDENT: find an identifier (keyword)
/// FIND_STRING: find any non-white text
/// FIND_IDENT + FIND_STRING: find any non-white text, identifier preferred.
/// FIND_EVAL: find text useful for C program debugging
///
/// There are three steps:
/// 1. Search forward for the start of an identifier/text. Doesn't move if
/// already on one.
/// 2. Search backward for the start of this identifier/text.
/// This doesn't match the real Vi but I like it a little better and it
/// shouldn't bother anyone.
/// 3. Search forward to the end of this identifier/text.
/// When FIND_IDENT isn't defined, we backup until a blank.
///
/// @return the length of the text, or zero if no text is found.
///
/// If text is found, a pointer to the text is put in "*text". This
/// points into the current buffer line and is not always NUL terminated.
size_t find_ident_under_cursor(char **text, int find_type)
FUNC_ATTR_NONNULL_ARG(1)
{
return find_ident_at_pos(curwin, curwin->w_cursor.lnum,
curwin->w_cursor.col, text, NULL, find_type);
}
/// Like find_ident_under_cursor(), but for any window and any position.
/// However: Uses 'iskeyword' from the current window!.
///
/// @param textcol column where "text" starts, can be NULL
size_t find_ident_at_pos(win_T *wp, linenr_T lnum, colnr_T startcol, char **text, int *textcol,
int find_type)
FUNC_ATTR_NONNULL_ARG(1, 4)
{
int col = 0; // init to shut up GCC
int i;
int this_class = 0;
int prev_class;
int prevcol;
int bn = 0; // bracket nesting
// if i == 0: try to find an identifier
// if i == 1: try to find any non-white text
char *ptr = ml_get_buf(wp->w_buffer, lnum);
for (i = (find_type & FIND_IDENT) ? 0 : 1; i < 2; i++) {
// 1. skip to start of identifier/text
col = startcol;
while (ptr[col] != NUL) {
// Stop at a ']' to evaluate "a[x]".
if ((find_type & FIND_EVAL) && ptr[col] == ']') {
break;
}
this_class = mb_get_class(ptr + col);
if (this_class != 0 && (i == 1 || this_class != 1)) {
break;
}
col += utfc_ptr2len(ptr + col);
}
// When starting on a ']' count it, so that we include the '['.
bn = ptr[col] == ']';
// 2. Back up to start of identifier/text.
//
// Remember class of character under cursor.
if ((find_type & FIND_EVAL) && ptr[col] == ']') {
this_class = mb_get_class("a");
} else {
this_class = mb_get_class(ptr + col);
}
while (col > 0 && this_class != 0) {
prevcol = col - 1 - utf_head_off(ptr, ptr + col - 1);
prev_class = mb_get_class(ptr + prevcol);
if (this_class != prev_class
&& (i == 0
|| prev_class == 0
|| (find_type & FIND_IDENT))
&& (!(find_type & FIND_EVAL)
|| prevcol == 0
|| !find_is_eval_item(ptr + prevcol, &prevcol, &bn, BACKWARD))) {
break;
}
col = prevcol;
}
// If we don't want just any old text, or we've found an
// identifier, stop searching.
this_class = MIN(this_class, 2);
if (!(find_type & FIND_STRING) || this_class == 2) {
break;
}
}
if (ptr[col] == NUL || (i == 0 && this_class != 2)) {
// Didn't find an identifier or text.
if (find_type & FIND_STRING) {
emsg(_("E348: No string under cursor"));
} else {
emsg(_(e_noident));
}
return 0;
}
ptr += col;
*text = ptr;
if (textcol != NULL) {
*textcol = col;
}
// 3. Find the end if the identifier/text.
bn = 0;
startcol -= col;
col = 0;
// Search for point of changing multibyte character class.
this_class = mb_get_class(ptr);
while (ptr[col] != NUL
&& ((i == 0
? mb_get_class(ptr + col) == this_class
: mb_get_class(ptr + col) != 0)
|| ((find_type & FIND_EVAL)
&& col <= (int)startcol
&& find_is_eval_item(ptr + col, &col, &bn, FORWARD)))) {
col += utfc_ptr2len(ptr + col);
}
assert(col >= 0);
return (size_t)col;
}
/// Prepare for redo of a normal command.
static void prep_redo_cmd(cmdarg_T *cap)
{
prep_redo(cap->oap->regname, cap->count0,
NUL, cap->cmdchar, NUL, NUL, cap->nchar);
}
/// Prepare for redo of any command.
/// Note that only the last argument can be a multi-byte char.
void prep_redo(int regname, int num, int cmd1, int cmd2, int cmd3, int cmd4, int cmd5)
{
prep_redo_num2(regname, num, cmd1, cmd2, 0, cmd3, cmd4, cmd5);
}
/// Prepare for redo of any command with extra count after "cmd2".
void prep_redo_num2(int regname, int num1, int cmd1, int cmd2, int num2, int cmd3, int cmd4,
int cmd5)
{
ResetRedobuff();
if (regname != 0) { // yank from specified buffer
AppendCharToRedobuff('"');
AppendCharToRedobuff(regname);
}
if (num1 != 0) {
AppendNumberToRedobuff(num1);
}
if (cmd1 != NUL) {
AppendCharToRedobuff(cmd1);
}
if (cmd2 != NUL) {
AppendCharToRedobuff(cmd2);
}
if (num2 != 0) {
AppendNumberToRedobuff(num2);
}
if (cmd3 != NUL) {
AppendCharToRedobuff(cmd3);
}
if (cmd4 != NUL) {
AppendCharToRedobuff(cmd4);
}
if (cmd5 != NUL) {
AppendCharToRedobuff(cmd5);
}
}
/// Check for operator active and clear it.
///
/// Beep and return true if an operator was active.
static bool checkclearop(oparg_T *oap)
{
if (oap->op_type == OP_NOP) {
return false;
}
clearopbeep(oap);
return true;
}
/// Check for operator or Visual active. Clear active operator.
///
/// Beep and return true if an operator or Visual was active.
static bool checkclearopq(oparg_T *oap)
{
if (oap->op_type == OP_NOP && !VIsual_active) {
return false;
}
clearopbeep(oap);
return true;
}
void clearop(oparg_T *oap)
{
oap->op_type = OP_NOP;
oap->regname = 0;
oap->motion_force = NUL;
oap->use_reg_one = false;
motion_force = NUL;
}
void clearopbeep(oparg_T *oap)
{
clearop(oap);
beep_flush();
}
/// Remove the shift modifier from a special key.
static void unshift_special(cmdarg_T *cap)
{
switch (cap->cmdchar) {
case K_S_RIGHT:
cap->cmdchar = K_RIGHT; break;
case K_S_LEFT:
cap->cmdchar = K_LEFT; break;
case K_S_UP:
cap->cmdchar = K_UP; break;
case K_S_DOWN:
cap->cmdchar = K_DOWN; break;
case K_S_HOME:
cap->cmdchar = K_HOME; break;
case K_S_END:
cap->cmdchar = K_END; break;
}
cap->cmdchar = simplify_key(cap->cmdchar, &mod_mask);
}
/// If the mode is currently displayed clear the command line or update the
/// command displayed.
void may_clear_cmdline(void)
{
if (mode_displayed) {
// unshow visual mode later
clear_cmdline = true;
} else {
clear_showcmd();
}
}
// Routines for displaying a partly typed command
static char old_showcmd_buf[SHOWCMD_BUFLEN]; // For push_showcmd()
static bool showcmd_is_clear = true;
static bool showcmd_visual = false;
void clear_showcmd(void)
{
if (!p_sc) {
return;
}
if (VIsual_active && !char_avail()) {
bool cursor_bot = lt(VIsual, curwin->w_cursor);
int lines;
colnr_T leftcol, rightcol;
linenr_T top, bot;
// Show the size of the Visual area.
if (cursor_bot) {
top = VIsual.lnum;
bot = curwin->w_cursor.lnum;
} else {
top = curwin->w_cursor.lnum;
bot = VIsual.lnum;
}
// Include closed folds as a whole.
hasFolding(curwin, top, &top, NULL);
hasFolding(curwin, bot, NULL, &bot);
lines = bot - top + 1;
if (VIsual_mode == Ctrl_V) {
char *const saved_sbr = p_sbr;
char *const saved_w_sbr = curwin->w_p_sbr;
// Make 'sbr' empty for a moment to get the correct size.
p_sbr = empty_string_option;
curwin->w_p_sbr = empty_string_option;
getvcols(curwin, &curwin->w_cursor, &VIsual, &leftcol, &rightcol);
p_sbr = saved_sbr;
curwin->w_p_sbr = saved_w_sbr;
snprintf(showcmd_buf, SHOWCMD_BUFLEN, "%" PRId64 "x%" PRId64,
(int64_t)lines, (int64_t)rightcol - leftcol + 1);
} else if (VIsual_mode == 'V' || VIsual.lnum != curwin->w_cursor.lnum) {
snprintf(showcmd_buf, SHOWCMD_BUFLEN, "%" PRId64, (int64_t)lines);
} else {
char *s, *e;
int bytes = 0;
int chars = 0;
if (cursor_bot) {
s = ml_get_pos(&VIsual);
e = get_cursor_pos_ptr();
} else {
s = get_cursor_pos_ptr();
e = ml_get_pos(&VIsual);
}
while ((*p_sel != 'e') ? s <= e : s < e) {
int l = utfc_ptr2len(s);
if (l == 0) {
bytes++;
chars++;
break; // end of line
}
bytes += l;
chars++;
s += l;
}
if (bytes == chars) {
snprintf(showcmd_buf, SHOWCMD_BUFLEN, "%d", chars);
} else {
snprintf(showcmd_buf, SHOWCMD_BUFLEN, "%d-%d", chars, bytes);
}
}
int limit = ui_has(kUIMessages) ? SHOWCMD_BUFLEN - 1 : SHOWCMD_COLS;
showcmd_buf[limit] = NUL; // truncate
showcmd_visual = true;
} else {
showcmd_buf[0] = NUL;
showcmd_visual = false;
// Don't actually display something if there is nothing to clear.
if (showcmd_is_clear) {
return;
}
}
display_showcmd();
}
/// Add 'c' to string of shown command chars.
///
/// @return true if output has been written (and setcursor() has been called).
bool add_to_showcmd(int c)
{
static int ignore[] = {
K_IGNORE,
K_LEFTMOUSE, K_LEFTDRAG, K_LEFTRELEASE, K_MOUSEMOVE,
K_MIDDLEMOUSE, K_MIDDLEDRAG, K_MIDDLERELEASE,
K_RIGHTMOUSE, K_RIGHTDRAG, K_RIGHTRELEASE,
K_MOUSEDOWN, K_MOUSEUP, K_MOUSELEFT, K_MOUSERIGHT,
K_X1MOUSE, K_X1DRAG, K_X1RELEASE, K_X2MOUSE, K_X2DRAG, K_X2RELEASE,
K_EVENT,
0
};
if (!p_sc || msg_silent != 0) {
return false;
}
if (showcmd_visual) {
showcmd_buf[0] = NUL;
showcmd_visual = false;
}
// Ignore keys that are scrollbar updates and mouse clicks
if (IS_SPECIAL(c)) {
for (int i = 0; ignore[i] != 0; i++) {
if (ignore[i] == c) {
return false;
}
}
}
char *p;
char mbyte_buf[MB_MAXCHAR + 1];
if (c <= 0x7f || !vim_isprintc(c)) {
p = transchar(c);
if (*p == ' ') {
STRCPY(p, "<20>");
}
} else {
mbyte_buf[utf_char2bytes(c, mbyte_buf)] = NUL;
p = mbyte_buf;
}
size_t old_len = strlen(showcmd_buf);
size_t extra_len = strlen(p);
size_t limit = ui_has(kUIMessages) ? SHOWCMD_BUFLEN - 1 : SHOWCMD_COLS;
if (old_len + extra_len > limit) {
size_t overflow = old_len + extra_len - limit;
memmove(showcmd_buf, showcmd_buf + overflow, old_len - overflow + 1);
}
strcat(showcmd_buf, p);
if (char_avail()) {
return false;
}
display_showcmd();
return true;
}
void add_to_showcmd_c(int c)
{
add_to_showcmd(c);
setcursor();
}
/// Delete 'len' characters from the end of the shown command.
static void del_from_showcmd(int len)
{
if (!p_sc) {
return;
}
int old_len = (int)strlen(showcmd_buf);
len = MIN(len, old_len);
showcmd_buf[old_len - len] = NUL;
if (!char_avail()) {
display_showcmd();
}
}
/// push_showcmd() and pop_showcmd() are used when waiting for the user to type
/// something and there is a partial mapping.
void push_showcmd(void)
{
if (p_sc) {
STRCPY(old_showcmd_buf, showcmd_buf);
}
}
void pop_showcmd(void)
{
if (!p_sc) {
return;
}
STRCPY(showcmd_buf, old_showcmd_buf);
display_showcmd();
}
static void display_showcmd(void)
{
showcmd_is_clear = (showcmd_buf[0] == NUL);
if (*p_sloc == 's') {
if (showcmd_is_clear) {
curwin->w_redr_status = true;
} else {
win_redr_status(curwin);
setcursor(); // put cursor back where it belongs
}
return;
}
if (*p_sloc == 't') {
if (showcmd_is_clear) {
redraw_tabline = true;
} else {
draw_tabline();
setcursor(); // put cursor back where it belongs
}
return;
}
// 'showcmdloc' is "last" or empty
if (ui_has(kUIMessages)) {
MAXSIZE_TEMP_ARRAY(content, 1);
MAXSIZE_TEMP_ARRAY(chunk, 2);
if (!showcmd_is_clear) {
// placeholder for future highlight support
ADD_C(chunk, INTEGER_OBJ(0));
ADD_C(chunk, CSTR_AS_OBJ(showcmd_buf));
ADD_C(content, ARRAY_OBJ(chunk));
}
ui_call_msg_showcmd(content);
return;
}
if (p_ch == 0) {
return;
}
msg_grid_validate();
int showcmd_row = Rows - 1;
grid_line_start(&msg_grid_adj, showcmd_row);
int len = 0;
if (!showcmd_is_clear) {
len = grid_line_puts(sc_col, showcmd_buf, -1, HL_ATTR(HLF_MSG));
}
// clear the rest of an old message by outputting up to SHOWCMD_COLS spaces
grid_line_puts(sc_col + len, (char *)" " + len, -1, HL_ATTR(HLF_MSG));
grid_line_flush();
}
int get_vtopline(win_T *wp)
{
return plines_m_win_fill(wp, 1, wp->w_topline) - wp->w_topfill;
}
/// When "check" is false, prepare for commands that scroll the window.
/// When "check" is true, take care of scroll-binding after the window has
/// scrolled. Called from normal_cmd() and edit().
void do_check_scrollbind(bool check)
{
static win_T *old_curwin = NULL;
static linenr_T old_vtopline = 0;
static buf_T *old_buf = NULL;
static colnr_T old_leftcol = 0;
int vtopline = get_vtopline(curwin);
if (check && curwin->w_p_scb) {
// If a ":syncbind" command was just used, don't scroll, only reset
// the values.
if (did_syncbind) {
did_syncbind = false;
} else if (curwin == old_curwin) {
// Synchronize other windows, as necessary according to
// 'scrollbind'. Don't do this after an ":edit" command, except
// when 'diff' is set.
if ((curwin->w_buffer == old_buf
|| curwin->w_p_diff
)
&& (vtopline != old_vtopline
|| curwin->w_leftcol != old_leftcol)) {
check_scrollbind(vtopline - old_vtopline, curwin->w_leftcol - old_leftcol);
}
} else if (vim_strchr(p_sbo, 'j')) { // jump flag set in 'scrollopt'
// When switching between windows, make sure that the relative
// vertical offset is valid for the new window. The relative
// offset is invalid whenever another 'scrollbind' window has
// scrolled to a point that would force the current window to
// scroll past the beginning or end of its buffer. When the
// resync is performed, some of the other 'scrollbind' windows may
// need to jump so that the current window's relative position is
// visible on-screen.
check_scrollbind(vtopline - curwin->w_scbind_pos, 0);
}
curwin->w_scbind_pos = vtopline;
}
old_curwin = curwin;
old_vtopline = vtopline;
old_buf = curwin->w_buffer;
old_leftcol = curwin->w_leftcol;
}
/// Synchronize any windows that have "scrollbind" set, based on the
/// number of rows by which the current window has changed
/// (1998-11-02 16:21:01 R. Edward Ralston <eralston@computer.org>)
void check_scrollbind(linenr_T vtopline_diff, int leftcol_diff)
{
win_T *old_curwin = curwin;
buf_T *old_curbuf = curbuf;
int old_VIsual_select = VIsual_select;
int old_VIsual_active = VIsual_active;
colnr_T tgt_leftcol = curwin->w_leftcol;
// check 'scrollopt' string for vertical and horizontal scroll options
bool want_ver = old_curwin->w_p_diff
|| (vim_strchr(p_sbo, 'v') && vtopline_diff != 0);
bool want_hor = (vim_strchr(p_sbo, 'h') && (leftcol_diff || vtopline_diff != 0));
// loop through the scrollbound windows and scroll accordingly
VIsual_select = VIsual_active = 0;
FOR_ALL_WINDOWS_IN_TAB(wp, curtab) {
curwin = wp;
curbuf = curwin->w_buffer;
// skip original window and windows with 'noscrollbind'
if (curwin == old_curwin || !curwin->w_p_scb) {
continue;
}
// do the vertical scroll
if (want_ver) {
if (old_curwin->w_p_diff && curwin->w_p_diff) {
diff_set_topline(old_curwin, curwin);
} else {
curwin->w_scbind_pos += vtopline_diff;
int curr_vtopline = get_vtopline(curwin);
// Perf: reuse curr_vtopline to reduce the time in plines_m_win_fill().
// Equivalent to:
// int max_vtopline = plines_m_win_fill(curwin, 1, curbuf->b_ml.ml_line_count);
int max_vtopline = curr_vtopline + curwin->w_topfill
+ plines_m_win_fill(curwin, curwin->w_topline + 1,
curbuf->b_ml.ml_line_count);
int new_vtopline = MAX(MIN((linenr_T)curwin->w_scbind_pos, max_vtopline), 1);
int y = new_vtopline - curr_vtopline;
if (y > 0) {
scrollup(curwin, y, false);
} else {
scrolldown(curwin, -y, false);
}
}
redraw_later(curwin, UPD_VALID);
cursor_correct(curwin);
curwin->w_redr_status = true;
}
// do the horizontal scroll
if (want_hor) {
set_leftcol(tgt_leftcol);
}
}
// reset current-window
VIsual_select = old_VIsual_select;
VIsual_active = old_VIsual_active;
curwin = old_curwin;
curbuf = old_curbuf;
}
/// Command character that's ignored.
/// Used for CTRL-Q and CTRL-S to avoid problems with terminals that use
/// xon/xoff.
static void nv_ignore(cmdarg_T *cap)
{
cap->retval |= CA_COMMAND_BUSY; // don't call edit() now
}
/// Command character that doesn't do anything, but unlike nv_ignore() does
/// start edit(). Used for "startinsert" executed while starting up.
static void nv_nop(cmdarg_T *cap)
{
}
/// Command character doesn't exist.
static void nv_error(cmdarg_T *cap)
{
clearopbeep(cap->oap);
}
/// <Help> and <F1> commands.
static void nv_help(cmdarg_T *cap)
{
if (!checkclearopq(cap->oap)) {
ex_help(NULL);
}
}
/// CTRL-A and CTRL-X: Add or subtract from letter or number under cursor.
static void nv_addsub(cmdarg_T *cap)
{
if (bt_prompt(curbuf) && !prompt_curpos_editable()) {
clearopbeep(cap->oap);
} else if (!VIsual_active && cap->oap->op_type == OP_NOP) {
prep_redo_cmd(cap);
cap->oap->op_type = cap->cmdchar == Ctrl_A ? OP_NR_ADD : OP_NR_SUB;
op_addsub(cap->oap, cap->count1, cap->arg);
cap->oap->op_type = OP_NOP;
} else if (VIsual_active) {
nv_operator(cap);
} else {
clearop(cap->oap);
}
}
/// CTRL-F, CTRL-B, etc: Scroll page up or down.
static void nv_page(cmdarg_T *cap)
{
if (checkclearop(cap->oap)) {
return;
}
if (mod_mask & MOD_MASK_CTRL) {
// <C-PageUp>: tab page back; <C-PageDown>: tab page forward
if (cap->arg == BACKWARD) {
goto_tabpage(-cap->count1);
} else {
goto_tabpage(cap->count0);
}
} else {
pagescroll(cap->arg, cap->count1, false);
}
}
/// Implementation of "gd" and "gD" command.
///
/// @param thisblock 1 for "1gd" and "1gD"
static void nv_gd(oparg_T *oap, int nchar, int thisblock)
{
size_t len;
char *ptr;
if ((len = find_ident_under_cursor(&ptr, FIND_IDENT)) == 0
|| !find_decl(ptr, len, nchar == 'd', thisblock, SEARCH_START)) {
clearopbeep(oap);
return;
}
if ((fdo_flags & FDO_SEARCH) && KeyTyped && oap->op_type == OP_NOP) {
foldOpenCursor();
}
// clear any search statistics
if (messaging() && !msg_silent && !shortmess(SHM_SEARCHCOUNT)) {
clear_cmdline = true;
}
}
/// @return true if line[offset] is not inside a C-style comment or string,
/// false otherwise.
static bool is_ident(const char *line, int offset)
{
bool incomment = false;
int instring = 0;
int prev = 0;
for (int i = 0; i < offset && line[i] != NUL; i++) {
if (instring != 0) {
if (prev != '\\' && (uint8_t)line[i] == instring) {
instring = 0;
}
} else if ((line[i] == '"' || line[i] == '\'') && !incomment) {
instring = (uint8_t)line[i];
} else {
if (incomment) {
if (prev == '*' && line[i] == '/') {
incomment = false;
}
} else if (prev == '/' && line[i] == '*') {
incomment = true;
} else if (prev == '/' && line[i] == '/') {
return false;
}
}
prev = (uint8_t)line[i];
}
return incomment == false && instring == 0;
}
/// Search for variable declaration of "ptr[len]".
/// When "locally" is true in the current function ("gd"), otherwise in the
/// current file ("gD").
///
/// @param thisblock when true check the {} block scope.
/// @param flags_arg flags passed to searchit()
///
/// @return fail when not found.
bool find_decl(char *ptr, size_t len, bool locally, bool thisblock, int flags_arg)
{
pos_T par_pos;
pos_T found_pos;
bool t;
bool retval = true;
bool incll;
int searchflags = flags_arg;
size_t patsize = len + 7;
char *pat = xmalloc(patsize);
// Put "\V" before the pattern to avoid that the special meaning of "."
// and "~" causes trouble.
assert(patsize <= INT_MAX);
size_t patlen = (size_t)snprintf(pat, patsize,
vim_iswordp(ptr) ? "\\V\\<%.*s\\>" : "\\V%.*s",
(int)len, ptr);
pos_T old_pos = curwin->w_cursor;
bool save_p_ws = p_ws;
bool save_p_scs = p_scs;
p_ws = false; // don't wrap around end of file now
p_scs = false; // don't switch ignorecase off now
// With "gD" go to line 1.
// With "gd" Search back for the start of the current function, then go
// back until a blank line. If this fails go to line 1.
if (!locally || !findpar(&incll, BACKWARD, 1, '{', false)) {
setpcmark(); // Set in findpar() otherwise
curwin->w_cursor.lnum = 1;
par_pos = curwin->w_cursor;
} else {
par_pos = curwin->w_cursor;
while (curwin->w_cursor.lnum > 1
&& *skipwhite(get_cursor_line_ptr()) != NUL) {
curwin->w_cursor.lnum--;
}
}
curwin->w_cursor.col = 0;
// Search forward for the identifier, ignore comment lines.
clearpos(&found_pos);
while (true) {
t = searchit(curwin, curbuf, &curwin->w_cursor, NULL, FORWARD,
pat, patlen, 1, searchflags, RE_LAST, NULL);
if (curwin->w_cursor.lnum >= old_pos.lnum) {
t = false; // match after start is failure too
}
if (thisblock && t != false) {
const int64_t maxtravel = old_pos.lnum - curwin->w_cursor.lnum + 1;
const pos_T *pos = findmatchlimit(NULL, '}', FM_FORWARD, maxtravel);
// Check that the block the match is in doesn't end before the
// position where we started the search from.
if (pos != NULL && pos->lnum < old_pos.lnum) {
// There can't be a useful match before the end of this block.
// Skip to the end
curwin->w_cursor = *pos;
continue;
}
}
if (t == false) {
// If we previously found a valid position, use it.
if (found_pos.lnum != 0) {
curwin->w_cursor = found_pos;
t = true;
}
break;
}
if (get_leader_len(get_cursor_line_ptr(), NULL, false, true) > 0) {
// Ignore this line, continue at start of next line.
curwin->w_cursor.lnum++;
curwin->w_cursor.col = 0;
continue;
}
bool valid = is_ident(get_cursor_line_ptr(), curwin->w_cursor.col);
// If the current position is not a valid identifier and a previous match is
// present, favor that one instead.
if (!valid && found_pos.lnum != 0) {
curwin->w_cursor = found_pos;
break;
}
// global search: use first match found
if (valid && !locally) {
break;
}
if (valid && curwin->w_cursor.lnum >= par_pos.lnum) {
// If we previously found a valid position, use it.
if (found_pos.lnum != 0) {
curwin->w_cursor = found_pos;
}
break;
}
// For finding a local variable and the match is before the "{" or
// inside a comment, continue searching. For K&R style function
// declarations this skips the function header without types.
if (!valid) {
clearpos(&found_pos);
} else {
found_pos = curwin->w_cursor;
}
// Remove SEARCH_START from flags to avoid getting stuck at one position.
searchflags &= ~SEARCH_START;
}
if (t == false) {
retval = false;
curwin->w_cursor = old_pos;
} else {
curwin->w_set_curswant = true;
// "n" searches forward now
reset_search_dir();
}
xfree(pat);
p_ws = save_p_ws;
p_scs = save_p_scs;
return retval;
}
/// Move 'dist' lines in direction 'dir', counting lines by *screen*
/// lines rather than lines in the file.
/// 'dist' must be positive.
///
/// @return true if able to move cursor, false otherwise.
bool nv_screengo(oparg_T *oap, int dir, int dist)
{
int linelen = linetabsize(curwin, curwin->w_cursor.lnum);
bool retval = true;
bool atend = false;
int col_off1; // margin offset for first screen line
int col_off2; // margin offset for wrapped screen line
int width1; // text width for first screen line
int width2; // text width for wrapped screen line
oap->motion_type = kMTCharWise;
oap->inclusive = (curwin->w_curswant == MAXCOL);
col_off1 = win_col_off(curwin);
col_off2 = col_off1 - win_col_off2(curwin);
width1 = curwin->w_width_inner - col_off1;
width2 = curwin->w_width_inner - col_off2;
if (width2 == 0) {
width2 = 1; // Avoid divide by zero.
}
if (curwin->w_width_inner != 0) {
int n;
// Instead of sticking at the last character of the buffer line we
// try to stick in the last column of the screen.
if (curwin->w_curswant == MAXCOL) {
atend = true;
validate_virtcol(curwin);
if (width1 <= 0) {
curwin->w_curswant = 0;
} else {
curwin->w_curswant = width1 - 1;
if (curwin->w_virtcol > curwin->w_curswant) {
curwin->w_curswant += ((curwin->w_virtcol
- curwin->w_curswant -
1) / width2 + 1) * width2;
}
}
} else {
if (linelen > width1) {
n = ((linelen - width1 - 1) / width2 + 1) * width2 + width1;
} else {
n = width1;
}
curwin->w_curswant = MIN(curwin->w_curswant, n - 1);
}
while (dist--) {
if (dir == BACKWARD) {
if (curwin->w_curswant >= width1
&& !hasFolding(curwin, curwin->w_cursor.lnum, NULL, NULL)) {
// Move back within the line. This can give a negative value
// for w_curswant if width1 < width2 (with cpoptions+=n),
// which will get clipped to column 0.
curwin->w_curswant -= width2;
} else {
// to previous line
if (curwin->w_cursor.lnum <= 1) {
retval = false;
break;
}
cursor_up_inner(curwin, 1);
linelen = linetabsize(curwin, curwin->w_cursor.lnum);
if (linelen > width1) {
int w = (((linelen - width1 - 1) / width2) + 1) * width2;
assert(curwin->w_curswant <= INT_MAX - w);
curwin->w_curswant += w;
}
}
} else { // dir == FORWARD
if (linelen > width1) {
n = ((linelen - width1 - 1) / width2 + 1) * width2 + width1;
} else {
n = width1;
}
if (curwin->w_curswant + width2 < (colnr_T)n
&& !hasFolding(curwin, curwin->w_cursor.lnum, NULL, NULL)) {
// move forward within line
curwin->w_curswant += width2;
} else {
// to next line
if (curwin->w_cursor.lnum >= curwin->w_buffer->b_ml.ml_line_count) {
retval = false;
break;
}
cursor_down_inner(curwin, 1);
curwin->w_curswant %= width2;
// Check if the cursor has moved below the number display
// when width1 < width2 (with cpoptions+=n). Subtract width2
// to get a negative value for w_curswant, which will get
// clipped to column 0.
if (curwin->w_curswant >= width1) {
curwin->w_curswant -= width2;
}
linelen = linetabsize(curwin, curwin->w_cursor.lnum);
}
}
}
}
if (virtual_active(curwin) && atend) {
coladvance(curwin, MAXCOL);
} else {
coladvance(curwin, curwin->w_curswant);
}
if (curwin->w_cursor.col > 0 && curwin->w_p_wrap) {
// Check for landing on a character that got split at the end of the
// last line. We want to advance a screenline, not end up in the same
// screenline or move two screenlines.
validate_virtcol(curwin);
colnr_T virtcol = curwin->w_virtcol;
if (virtcol > (colnr_T)width1 && *get_showbreak_value(curwin) != NUL) {
virtcol -= vim_strsize(get_showbreak_value(curwin));
}
int c = utf_ptr2char(get_cursor_pos_ptr());
if (dir == FORWARD && virtcol < curwin->w_curswant
&& (curwin->w_curswant <= (colnr_T)width1)
&& !vim_isprintc(c) && c > 255) {
oneright();
}
if (virtcol > curwin->w_curswant
&& (curwin->w_curswant < (colnr_T)width1
? (curwin->w_curswant > (colnr_T)width1 / 2)
: ((curwin->w_curswant - width1) % width2
> (colnr_T)width2 / 2))) {
curwin->w_cursor.col--;
}
}
if (atend) {
curwin->w_curswant = MAXCOL; // stick in the last column
}
adjust_skipcol();
return retval;
}
/// Handle CTRL-E and CTRL-Y commands: scroll a line up or down.
/// cap->arg must be true for CTRL-E.
void nv_scroll_line(cmdarg_T *cap)
{
if (!checkclearop(cap->oap)) {
scroll_redraw(cap->arg, cap->count1);
}
}
/// Get the count specified after a 'z' command. Only the 'z<CR>', 'zl', 'zh',
/// 'z<Left>', and 'z<Right>' commands accept a count after 'z'.
/// @return true to process the 'z' command and false to skip it.
static bool nv_z_get_count(cmdarg_T *cap, int *nchar_arg)
{
int nchar = *nchar_arg;
// "z123{nchar}": edit the count before obtaining {nchar}
if (checkclearop(cap->oap)) {
return false;
}
int n = nchar - '0';
while (true) {
no_mapping++;
allow_keys++; // no mapping for nchar, but allow key codes
nchar = plain_vgetc();
LANGMAP_ADJUST(nchar, true);
no_mapping--;
allow_keys--;
add_to_showcmd(nchar);
if (nchar == K_DEL || nchar == K_KDEL) {
n /= 10;
} else if (ascii_isdigit(nchar)) {
if (vim_append_digit_int(&n, nchar - '0') == FAIL) {
clearopbeep(cap->oap);
break;
}
} else if (nchar == CAR) {
win_setheight(n);
break;
} else if (nchar == 'l'
|| nchar == 'h'
|| nchar == K_LEFT
|| nchar == K_RIGHT) {
cap->count1 = n ? n * cap->count1 : cap->count1;
*nchar_arg = nchar;
return true;
} else {
clearopbeep(cap->oap);
break;
}
}
cap->oap->op_type = OP_NOP;
return false;
}
/// "zug" and "zuw": undo "zg" and "zw"
/// "zg": add good word to word list
/// "zw": add wrong word to word list
/// "zG": add good word to temp word list
/// "zW": add wrong word to temp word list
static int nv_zg_zw(cmdarg_T *cap, int nchar)
{
bool undo = false;
if (nchar == 'u') {
no_mapping++;
allow_keys++; // no mapping for nchar, but allow key codes
nchar = plain_vgetc();
LANGMAP_ADJUST(nchar, true);
no_mapping--;
allow_keys--;
add_to_showcmd(nchar);
if (vim_strchr("gGwW", nchar) == NULL) {
clearopbeep(cap->oap);
return OK;
}
undo = true;
}
if (checkclearop(cap->oap)) {
return OK;
}
char *ptr = NULL;
size_t len;
if (VIsual_active && !get_visual_text(cap, &ptr, &len)) {
return FAIL;
}
if (ptr == NULL) {
pos_T pos = curwin->w_cursor;
// Find bad word under the cursor. When 'spell' is
// off this fails and find_ident_under_cursor() is
// used below.
emsg_off++;
len = spell_move_to(curwin, FORWARD, SMT_ALL, true, NULL);
emsg_off--;
if (len != 0 && curwin->w_cursor.col <= pos.col) {
ptr = ml_get_pos(&curwin->w_cursor);
}
curwin->w_cursor = pos;
}
if (ptr == NULL && (len = find_ident_under_cursor(&ptr, FIND_IDENT)) == 0) {
return FAIL;
}
assert(len <= INT_MAX);
spell_add_word(ptr, (int)len,
nchar == 'w' || nchar == 'W' ? SPELL_ADD_BAD : SPELL_ADD_GOOD,
(nchar == 'G' || nchar == 'W') ? 0 : cap->count1,
undo);
return OK;
}
/// Commands that start with "z".
static void nv_zet(cmdarg_T *cap)
{
colnr_T col;
int nchar = cap->nchar;
int old_fdl = (int)curwin->w_p_fdl;
int old_fen = curwin->w_p_fen;
int siso = get_sidescrolloff_value(curwin);
if (ascii_isdigit(nchar) && !nv_z_get_count(cap, &nchar)) {
return;
}
// "zf" and "zF" are always an operator, "zd", "zo", "zO", "zc"
// and "zC" only in Visual mode. "zj" and "zk" are motion
// commands.
if (cap->nchar != 'f' && cap->nchar != 'F'
&& !(VIsual_active && vim_strchr("dcCoO", cap->nchar))
&& cap->nchar != 'j' && cap->nchar != 'k'
&& checkclearop(cap->oap)) {
return;
}
// For "z+", "z<CR>", "zt", "z.", "zz", "z^", "z-", "zb":
// If line number given, set cursor.
if ((vim_strchr("+\r\nt.z^-b", nchar) != NULL)
&& cap->count0
&& cap->count0 != curwin->w_cursor.lnum) {
setpcmark();
if (cap->count0 > curbuf->b_ml.ml_line_count) {
curwin->w_cursor.lnum = curbuf->b_ml.ml_line_count;
} else {
curwin->w_cursor.lnum = cap->count0;
}
check_cursor_col(curwin);
}
switch (nchar) {
// "z+", "z<CR>" and "zt": put cursor at top of screen
case '+':
if (cap->count0 == 0) {
// No count given: put cursor at the line below screen
validate_botline(curwin); // make sure w_botline is valid
curwin->w_cursor.lnum = MIN(curwin->w_botline, curbuf->b_ml.ml_line_count);
}
FALLTHROUGH;
case NL:
case CAR:
case K_KENTER:
beginline(BL_WHITE | BL_FIX);
FALLTHROUGH;
case 't':
scroll_cursor_top(curwin, 0, true);
redraw_later(curwin, UPD_VALID);
set_fraction(curwin);
break;
// "z." and "zz": put cursor in middle of screen
case '.':
beginline(BL_WHITE | BL_FIX);
FALLTHROUGH;
case 'z':
scroll_cursor_halfway(curwin, true, false);
redraw_later(curwin, UPD_VALID);
set_fraction(curwin);
break;
// "z^", "z-" and "zb": put cursor at bottom of screen
case '^': // Strange Vi behavior: <count>z^ finds line at top of window
// when <count> is at bottom of window, and puts that one at
// bottom of window.
if (cap->count0 != 0) {
scroll_cursor_bot(curwin, 0, true);
curwin->w_cursor.lnum = curwin->w_topline;
} else if (curwin->w_topline == 1) {
curwin->w_cursor.lnum = 1;
} else {
curwin->w_cursor.lnum = curwin->w_topline - 1;
}
FALLTHROUGH;
case '-':
beginline(BL_WHITE | BL_FIX);
FALLTHROUGH;
case 'b':
scroll_cursor_bot(curwin, 0, true);
redraw_later(curwin, UPD_VALID);
set_fraction(curwin);
break;
// "zH" - scroll screen right half-page
case 'H':
cap->count1 *= curwin->w_width_inner / 2;
FALLTHROUGH;
// "zh" - scroll screen to the right
case 'h':
case K_LEFT:
if (!curwin->w_p_wrap) {
set_leftcol((colnr_T)cap->count1 > curwin->w_leftcol
? 0 : curwin->w_leftcol - (colnr_T)cap->count1);
}
break;
// "zL" - scroll window left half-page
case 'L':
cap->count1 *= curwin->w_width_inner / 2;
FALLTHROUGH;
// "zl" - scroll window to the left if not wrapping
case 'l':
case K_RIGHT:
if (!curwin->w_p_wrap) {
set_leftcol(curwin->w_leftcol + (colnr_T)cap->count1);
}
break;
// "zs" - scroll screen, cursor at the start
case 's':
if (!curwin->w_p_wrap) {
if (hasFolding(curwin, curwin->w_cursor.lnum, NULL, NULL)) {
col = 0; // like the cursor is in col 0
} else {
getvcol(curwin, &curwin->w_cursor, &col, NULL, NULL);
}
if (col > siso) {
col -= siso;
} else {
col = 0;
}
if (curwin->w_leftcol != col) {
curwin->w_leftcol = col;
redraw_later(curwin, UPD_NOT_VALID);
}
}
break;
// "ze" - scroll screen, cursor at the end
case 'e':
if (!curwin->w_p_wrap) {
if (hasFolding(curwin, curwin->w_cursor.lnum, NULL, NULL)) {
col = 0; // like the cursor is in col 0
} else {
getvcol(curwin, &curwin->w_cursor, NULL, NULL, &col);
}
int n = curwin->w_width_inner - win_col_off(curwin);
if (col + siso < n) {
col = 0;
} else {
col = col + siso - n + 1;
}
if (curwin->w_leftcol != col) {
curwin->w_leftcol = col;
redraw_later(curwin, UPD_NOT_VALID);
}
}
break;
// "zp", "zP" in block mode put without addind trailing spaces
case 'P':
case 'p':
nv_put(cap);
break;
// "zy" Yank without trailing spaces
case 'y':
nv_operator(cap);
break;
// "zF": create fold command
// "zf": create fold operator
case 'F':
case 'f':
if (foldManualAllowed(true)) {
cap->nchar = 'f';
nv_operator(cap);
curwin->w_p_fen = true;
// "zF" is like "zfzf"
if (nchar == 'F' && cap->oap->op_type == OP_FOLD) {
nv_operator(cap);
finish_op = true;
}
} else {
clearopbeep(cap->oap);
}
break;
// "zd": delete fold at cursor
// "zD": delete fold at cursor recursively
case 'd':
case 'D':
if (foldManualAllowed(false)) {
if (VIsual_active) {
nv_operator(cap);
} else {
deleteFold(curwin, curwin->w_cursor.lnum,
curwin->w_cursor.lnum, nchar == 'D', false);
}
}
break;
// "zE": erase all folds
case 'E':
if (foldmethodIsManual(curwin)) {
clearFolding(curwin);
changed_window_setting(curwin);
} else if (foldmethodIsMarker(curwin)) {
deleteFold(curwin, 1, curbuf->b_ml.ml_line_count, true, false);
} else {
emsg(_("E352: Cannot erase folds with current 'foldmethod'"));
}
break;
// "zn": fold none: reset 'foldenable'
case 'n':
curwin->w_p_fen = false;
break;
// "zN": fold Normal: set 'foldenable'
case 'N':
curwin->w_p_fen = true;
break;
// "zi": invert folding: toggle 'foldenable'
case 'i':
curwin->w_p_fen = !curwin->w_p_fen;
break;
// "za": open closed fold or close open fold at cursor
case 'a':
if (hasFolding(curwin, curwin->w_cursor.lnum, NULL, NULL)) {
openFold(curwin->w_cursor, cap->count1);
} else {
closeFold(curwin->w_cursor, cap->count1);
curwin->w_p_fen = true;
}
break;
// "zA": open fold at cursor recursively
case 'A':
if (hasFolding(curwin, curwin->w_cursor.lnum, NULL, NULL)) {
openFoldRecurse(curwin->w_cursor);
} else {
closeFoldRecurse(curwin->w_cursor);
curwin->w_p_fen = true;
}
break;
// "zo": open fold at cursor or Visual area
case 'o':
if (VIsual_active) {
nv_operator(cap);
} else {
openFold(curwin->w_cursor, cap->count1);
}
break;
// "zO": open fold recursively
case 'O':
if (VIsual_active) {
nv_operator(cap);
} else {
openFoldRecurse(curwin->w_cursor);
}
break;
// "zc": close fold at cursor or Visual area
case 'c':
if (VIsual_active) {
nv_operator(cap);
} else {
closeFold(curwin->w_cursor, cap->count1);
}
curwin->w_p_fen = true;
break;
// "zC": close fold recursively
case 'C':
if (VIsual_active) {
nv_operator(cap);
} else {
closeFoldRecurse(curwin->w_cursor);
}
curwin->w_p_fen = true;
break;
// "zv": open folds at the cursor
case 'v':
foldOpenCursor();
break;
// "zx": re-apply 'foldlevel' and open folds at the cursor
case 'x':
curwin->w_p_fen = true;
curwin->w_foldinvalid = true; // recompute folds
newFoldLevel(); // update right now
foldOpenCursor();
break;
// "zX": undo manual opens/closes, re-apply 'foldlevel'
case 'X':
curwin->w_p_fen = true;
curwin->w_foldinvalid = true; // recompute folds
old_fdl = -1; // force an update
break;
// "zm": fold more
case 'm':
if (curwin->w_p_fdl > 0) {
curwin->w_p_fdl -= cap->count1;
curwin->w_p_fdl = MAX(curwin->w_p_fdl, 0);
}
old_fdl = -1; // force an update
curwin->w_p_fen = true;
break;
// "zM": close all folds
case 'M':
curwin->w_p_fdl = 0;
old_fdl = -1; // force an update
curwin->w_p_fen = true;
break;
// "zr": reduce folding
case 'r':
curwin->w_p_fdl += cap->count1;
{
int d = getDeepestNesting(curwin);
curwin->w_p_fdl = MIN(curwin->w_p_fdl, d);
}
break;
case 'R': // "zR": open all folds
curwin->w_p_fdl = getDeepestNesting(curwin);
old_fdl = -1; // force an update
break;
case 'j': // "zj" move to next fold downwards
case 'k': // "zk" move to next fold upwards
if (foldMoveTo(true, nchar == 'j' ? FORWARD : BACKWARD,
cap->count1) == false) {
clearopbeep(cap->oap);
}
break;
case 'u': // "zug" and "zuw": undo "zg" and "zw"
case 'g': // "zg": add good word to word list
case 'w': // "zw": add wrong word to word list
case 'G': // "zG": add good word to temp word list
case 'W': // "zW": add wrong word to temp word list
if (nv_zg_zw(cap, nchar) == FAIL) {
return;
}
break;
case '=': // "z=": suggestions for a badly spelled word
if (!checkclearop(cap->oap)) {
spell_suggest(cap->count0);
}
break;
default:
clearopbeep(cap->oap);
}
// Redraw when 'foldenable' changed
if (old_fen != curwin->w_p_fen) {
if (foldmethodIsDiff(curwin) && curwin->w_p_scb) {
// Adjust 'foldenable' in diff-synced windows.
FOR_ALL_WINDOWS_IN_TAB(wp, curtab) {
if (wp != curwin && foldmethodIsDiff(wp) && wp->w_p_scb) {
wp->w_p_fen = curwin->w_p_fen;
changed_window_setting(wp);
}
}
}
changed_window_setting(curwin);
}
// Redraw when 'foldlevel' changed.
if (old_fdl != curwin->w_p_fdl) {
newFoldLevel();
}
}
/// "Q" command.
static void nv_regreplay(cmdarg_T *cap)
{
if (checkclearop(cap->oap)) {
return;
}
while (cap->count1-- && !got_int) {
if (do_execreg(reg_recorded, false, false, false) == false) {
clearopbeep(cap->oap);
break;
}
line_breakcheck();
}
}
/// Handle a ":" command and <Cmd> or Lua mappings.
static void nv_colon(cmdarg_T *cap)
{
bool cmd_result;
bool is_cmdkey = cap->cmdchar == K_COMMAND;
bool is_lua = cap->cmdchar == K_LUA;
if (VIsual_active && !is_cmdkey && !is_lua) {
nv_operator(cap);
return;
}
if (cap->oap->op_type != OP_NOP) {
// Using ":" as a movement is charwise exclusive.
cap->oap->motion_type = kMTCharWise;
cap->oap->inclusive = false;
} else if (cap->count0 && !is_cmdkey && !is_lua) {
// translate "count:" into ":.,.+(count - 1)"
stuffcharReadbuff('.');
if (cap->count0 > 1) {
stuffReadbuff(",.+");
stuffnumReadbuff(cap->count0 - 1);
}
}
// When typing, don't type below an old message
if (KeyTyped) {
compute_cmdrow();
}
if (is_lua) {
cmd_result = map_execute_lua(true);
} else {
// get a command line and execute it
cmd_result = do_cmdline(NULL, is_cmdkey ? getcmdkeycmd : getexline, NULL,
cap->oap->op_type != OP_NOP ? DOCMD_KEEPLINE : 0);
}
if (cmd_result == false) {
// The Ex command failed, do not execute the operator.
clearop(cap->oap);
} else if (cap->oap->op_type != OP_NOP
&& (cap->oap->start.lnum > curbuf->b_ml.ml_line_count
|| cap->oap->start.col > ml_get_len(cap->oap->start.lnum)
|| did_emsg)) {
// The start of the operator has become invalid by the Ex command.
clearopbeep(cap->oap);
}
}
/// Handle CTRL-G command.
static void nv_ctrlg(cmdarg_T *cap)
{
if (VIsual_active) { // toggle Selection/Visual mode
VIsual_select = !VIsual_select;
may_trigger_modechanged();
showmode();
} else if (!checkclearop(cap->oap)) {
// print full name if count given or :cd used
fileinfo(cap->count0, false, true);
}
}
/// Handle CTRL-H <Backspace> command.
static void nv_ctrlh(cmdarg_T *cap)
{
if (VIsual_active && VIsual_select) {
cap->cmdchar = 'x'; // BS key behaves like 'x' in Select mode
v_visop(cap);
} else {
nv_left(cap);
}
}
/// CTRL-L: clear screen and redraw.
static void nv_clear(cmdarg_T *cap)
{
if (checkclearop(cap->oap)) {
return;
}
// Clear all syntax states to force resyncing.
syn_stack_free_all(curwin->w_s);
FOR_ALL_WINDOWS_IN_TAB(wp, curtab) {
wp->w_s->b_syn_slow = false;
}
redraw_later(curwin, UPD_CLEAR);
}
/// CTRL-O: In Select mode: switch to Visual mode for one command.
/// Otherwise: Go to older pcmark.
static void nv_ctrlo(cmdarg_T *cap)
{
if (VIsual_active && VIsual_select) {
VIsual_select = false;
may_trigger_modechanged();
showmode();
restart_VIsual_select = 2; // restart Select mode later
} else {
cap->count1 = -cap->count1;
nv_pcmark(cap);
}
}
/// CTRL-^ command, short for ":e #". Works even when the alternate buffer is
/// not named.
static void nv_hat(cmdarg_T *cap)
{
if (!checkclearopq(cap->oap)) {
buflist_getfile(cap->count0, 0,
GETF_SETMARK|GETF_ALT, false);
}
}
/// "Z" commands.
static void nv_Zet(cmdarg_T *cap)
{
if (checkclearopq(cap->oap)) {
return;
}
switch (cap->nchar) {
// "ZZ": equivalent to ":x".
case 'Z':
do_cmdline_cmd("x");
break;
// "ZQ": equivalent to ":q!" (Elvis compatible).
case 'Q':
do_cmdline_cmd("q!");
break;
default:
clearopbeep(cap->oap);
}
}
/// Call nv_ident() as if "c1" was used, with "c2" as next character.
void do_nv_ident(int c1, int c2)
{
oparg_T oa;
cmdarg_T ca;
clear_oparg(&oa);
CLEAR_FIELD(ca);
ca.oap = &oa;
ca.cmdchar = c1;
ca.nchar = c2;
nv_ident(&ca);
}
/// 'K' normal-mode command. Get the command to lookup the keyword under the
/// cursor.
static size_t nv_K_getcmd(cmdarg_T *cap, char *kp, bool kp_help, bool kp_ex, char **ptr_arg,
size_t n, char *buf, size_t bufsize, size_t *buflen)
{
if (kp_help) {
// in the help buffer
STRCPY(buf, "he! ");
*buflen = STRLEN_LITERAL("he! ");
return n;
}
if (kp_ex) {
*buflen = 0;
// 'keywordprg' is an ex command
if (cap->count0 != 0) { // Send the count to the ex command.
*buflen = (size_t)snprintf(buf, bufsize, "%" PRId64, (int64_t)(cap->count0));
}
*buflen += (size_t)snprintf(buf + *buflen, bufsize - *buflen, "%s ", kp);
return n;
}
char *ptr = *ptr_arg;
// An external command will probably use an argument starting
// with "-" as an option. To avoid trouble we skip the "-".
while (*ptr == '-' && n > 0) {
ptr++;
n--;
}
if (n == 0) {
// found dashes only
emsg(_(e_noident));
xfree(buf);
*ptr_arg = ptr;
return 0;
}
// When a count is given, turn it into a range. Is this
// really what we want?
bool isman = (strcmp(kp, "man") == 0);
bool isman_s = (strcmp(kp, "man -s") == 0);
if (cap->count0 != 0 && !(isman || isman_s)) {
*buflen = (size_t)snprintf(buf, bufsize, ".,.+%" PRId64, (int64_t)(cap->count0 - 1));
}
do_cmdline_cmd("tabnew");
*buflen += (size_t)snprintf(buf + *buflen, bufsize - *buflen, "terminal ");
if (cap->count0 == 0 && isman_s) {
*buflen += (size_t)snprintf(buf + *buflen, bufsize - *buflen, "man ");
} else {
*buflen += (size_t)snprintf(buf + *buflen, bufsize - *buflen, "%s ", kp);
}
if (cap->count0 != 0 && (isman || isman_s)) {
*buflen += (size_t)snprintf(buf + *buflen, bufsize - *buflen,
"%" PRId64 " ", (int64_t)cap->count0);
}
*ptr_arg = ptr;
return n;
}
/// Handle the commands that use the word under the cursor.
/// [g] CTRL-] :ta to current identifier
/// [g] 'K' run program for current identifier
/// [g] '*' / to current identifier or string
/// [g] '#' ? to current identifier or string
/// g ']' :tselect for current identifier
static void nv_ident(cmdarg_T *cap)
{
char *ptr = NULL;
char *p;
size_t n = 0; // init for GCC
int cmdchar;
bool g_cmd; // "g" command
bool tag_cmd = false;
if (cap->cmdchar == 'g') { // "g*", "g#", "g]" and "gCTRL-]"
cmdchar = cap->nchar;
g_cmd = true;
} else {
cmdchar = cap->cmdchar;
g_cmd = false;
}
if (cmdchar == POUND) { // the pound sign, '#' for English keyboards
cmdchar = '#';
}
// The "]", "CTRL-]" and "K" commands accept an argument in Visual mode.
if (cmdchar == ']' || cmdchar == Ctrl_RSB || cmdchar == 'K') {
if (VIsual_active && get_visual_text(cap, &ptr, &n) == false) {
return;
}
if (checkclearopq(cap->oap)) {
return;
}
}
if (ptr == NULL && (n = find_ident_under_cursor(&ptr,
((cmdchar == '*'
|| cmdchar == '#')
? FIND_IDENT|FIND_STRING
: FIND_IDENT))) == 0) {
clearop(cap->oap);
return;
}
// Allocate buffer to put the command in. Inserting backslashes can
// double the length of the word. p_kp / curbuf->b_p_kp could be added
// and some numbers.
char *kp = *curbuf->b_p_kp == NUL ? p_kp : curbuf->b_p_kp; // 'keywordprg'
bool kp_help = (*kp == NUL || strcmp(kp, ":he") == 0 || strcmp(kp, ":help") == 0);
if (kp_help && *skipwhite(ptr) == NUL) {
emsg(_(e_noident)); // found white space only
return;
}
bool kp_ex = (*kp == ':'); // 'keywordprg' is an ex command
size_t bufsize = n * 2 + 30 + strlen(kp);
char *buf = xmalloc(bufsize);
buf[0] = NUL;
size_t buflen = 0;
switch (cmdchar) {
case '*':
case '#':
// Put cursor at start of word, makes search skip the word
// under the cursor.
// Call setpcmark() first, so "*``" puts the cursor back where
// it was.
setpcmark();
curwin->w_cursor.col = (colnr_T)(ptr - get_cursor_line_ptr());
if (!g_cmd && vim_iswordp(ptr)) {
STRCPY(buf, "\\<");
buflen = STRLEN_LITERAL("\\<");
}
no_smartcase = true; // don't use 'smartcase' now
break;
case 'K':
n = nv_K_getcmd(cap, kp, kp_help, kp_ex, &ptr, n, buf, bufsize, &buflen);
if (n == 0) {
return;
}
break;
case ']':
tag_cmd = true;
STRCPY(buf, "ts ");
buflen = STRLEN_LITERAL("ts ");
break;
default:
tag_cmd = true;
if (curbuf->b_help) {
STRCPY(buf, "he! ");
buflen = STRLEN_LITERAL("he! ");
} else {
if (g_cmd) {
STRCPY(buf, "tj ");
buflen = STRLEN_LITERAL("tj ");
} else if (cap->count0 == 0) {
STRCPY(buf, "ta ");
buflen = STRLEN_LITERAL("ta ");
} else {
buflen = (size_t)snprintf(buf, bufsize, ":%" PRId64 "ta ", (int64_t)cap->count0);
}
}
}
// Now grab the chars in the identifier
if (cmdchar == 'K' && !kp_help) {
ptr = xstrnsave(ptr, n);
if (kp_ex) {
// Escape the argument properly for an Ex command
p = vim_strsave_fnameescape(ptr, VSE_NONE);
} else {
// Escape the argument properly for a shell command
p = vim_strsave_shellescape(ptr, true, true);
}
xfree(ptr);
size_t plen = strlen(p);
char *newbuf = xrealloc(buf, buflen + plen + 1);
buf = newbuf;
STRCPY(buf + buflen, p);
buflen += plen;
xfree(p);
} else {
char *aux_ptr;
if (cmdchar == '*') {
aux_ptr = (magic_isset() ? "/.*~[^$\\" : "/^$\\");
} else if (cmdchar == '#') {
aux_ptr = (magic_isset() ? "/?.*~[^$\\" : "/?^$\\");
} else if (tag_cmd) {
if (curbuf->b_help) {
// ":help" handles unescaped argument
aux_ptr = "";
} else {
aux_ptr = "\\|\"\n[";
}
} else {
aux_ptr = "\\|\"\n*?[";
}
p = buf + buflen;
while (n-- > 0) {
// put a backslash before \ and some others
if (vim_strchr(aux_ptr, (uint8_t)(*ptr)) != NULL) {
*p++ = '\\';
}
// When current byte is a part of multibyte character, copy all
// bytes of that character.
const size_t len = (size_t)(utfc_ptr2len(ptr) - 1);
for (size_t i = 0; i < len && n > 0; i++, n--) {
*p++ = *ptr++;
}
*p++ = *ptr++;
}
*p = NUL;
buflen = (size_t)(p - buf);
}
// Execute the command.
if (cmdchar == '*' || cmdchar == '#') {
if (!g_cmd && vim_iswordp(mb_prevptr(get_cursor_line_ptr(), ptr))) {
STRCPY(buf + buflen, "\\>");
buflen += STRLEN_LITERAL("\\>");
}
// put pattern in search history
init_history();
add_to_history(HIST_SEARCH, buf, buflen, true, NUL);
normal_search(cap, cmdchar == '*' ? '/' : '?', buf, buflen, 0, NULL);
} else {
g_tag_at_cursor = true;
do_cmdline_cmd(buf);
g_tag_at_cursor = false;
if (cmdchar == 'K' && !kp_ex && !kp_help) {
// Start insert mode in terminal buffer
restart_edit = 'i';
add_map("<esc>", "<Cmd>bdelete!<CR>", MODE_TERMINAL, true);
}
}
xfree(buf);
}
/// Get visually selected text, within one line only.
///
/// @param pp return: start of selected text
/// @param lenp return: length of selected text
///
/// @return false if more than one line selected.
bool get_visual_text(cmdarg_T *cap, char **pp, size_t *lenp)
{
if (VIsual_mode != 'V') {
unadjust_for_sel();
}
if (VIsual.lnum != curwin->w_cursor.lnum) {
if (cap != NULL) {
clearopbeep(cap->oap);
}
return false;
}
if (VIsual_mode == 'V') {
*pp = get_cursor_line_ptr();
*lenp = (size_t)get_cursor_line_len();
} else {
if (lt(curwin->w_cursor, VIsual)) {
*pp = ml_get_pos(&curwin->w_cursor);
*lenp = (size_t)VIsual.col - (size_t)curwin->w_cursor.col + 1;
} else {
*pp = ml_get_pos(&VIsual);
*lenp = (size_t)curwin->w_cursor.col - (size_t)VIsual.col + 1;
}
if (**pp == NUL) {
*lenp = 0;
}
if (*lenp > 0) {
// Correct the length to include all bytes of the last character.
*lenp += (size_t)(utfc_ptr2len(*pp + (*lenp - 1)) - 1);
}
}
reset_VIsual_and_resel();
return true;
}
/// CTRL-T: backwards in tag stack
static void nv_tagpop(cmdarg_T *cap)
{
if (!checkclearopq(cap->oap)) {
do_tag("", DT_POP, cap->count1, false, true);
}
}
/// Handle scrolling command 'H', 'L' and 'M'.
static void nv_scroll(cmdarg_T *cap)
{
int n;
linenr_T lnum;
cap->oap->motion_type = kMTLineWise;
setpcmark();
if (cap->cmdchar == 'L') {
validate_botline(curwin); // make sure curwin->w_botline is valid
curwin->w_cursor.lnum = curwin->w_botline - 1;
if (cap->count1 - 1 >= curwin->w_cursor.lnum) {
curwin->w_cursor.lnum = 1;
} else {
if (hasAnyFolding(curwin)) {
// Count a fold for one screen line.
for (n = cap->count1 - 1; n > 0
&& curwin->w_cursor.lnum > curwin->w_topline; n--) {
hasFolding(curwin, curwin->w_cursor.lnum,
&curwin->w_cursor.lnum, NULL);
if (curwin->w_cursor.lnum > curwin->w_topline) {
curwin->w_cursor.lnum--;
}
}
} else {
curwin->w_cursor.lnum -= cap->count1 - 1;
}
}
} else {
if (cap->cmdchar == 'M') {
int used = 0;
// Don't count filler lines above the window.
used -= win_get_fill(curwin, curwin->w_topline)
- curwin->w_topfill;
validate_botline(curwin); // make sure w_empty_rows is valid
int half = (curwin->w_height_inner - curwin->w_empty_rows + 1) / 2;
for (n = 0; curwin->w_topline + n < curbuf->b_ml.ml_line_count; n++) {
// Count half the number of filler lines to be "below this
// line" and half to be "above the next line".
if (n > 0 && used + win_get_fill(curwin, curwin->w_topline + n) / 2 >= half) {
n--;
break;
}
used += plines_win(curwin, curwin->w_topline + n, true);
if (used >= half) {
break;
}
if (hasFolding(curwin, curwin->w_topline + n, NULL, &lnum)) {
n = lnum - curwin->w_topline;
}
}
if (n > 0 && used > curwin->w_height_inner) {
n--;
}
} else { // (cap->cmdchar == 'H')
n = cap->count1 - 1;
if (hasAnyFolding(curwin)) {
// Count a fold for one screen line.
lnum = curwin->w_topline;
while (n-- > 0 && lnum < curwin->w_botline - 1) {
hasFolding(curwin, lnum, NULL, &lnum);
lnum++;
}
n = lnum - curwin->w_topline;
}
}
curwin->w_cursor.lnum = MIN(curwin->w_topline + n, curbuf->b_ml.ml_line_count);
}
// Correct for 'so', except when an operator is pending.
if (cap->oap->op_type == OP_NOP) {
cursor_correct(curwin);
}
beginline(BL_SOL | BL_FIX);
}
/// Cursor right commands.
static void nv_right(cmdarg_T *cap)
{
int n;
if (mod_mask & (MOD_MASK_SHIFT | MOD_MASK_CTRL)) {
// <C-Right> and <S-Right> move a word or WORD right
if (mod_mask & MOD_MASK_CTRL) {
cap->arg = true;
}
nv_wordcmd(cap);
return;
}
cap->oap->motion_type = kMTCharWise;
cap->oap->inclusive = false;
bool past_line = (VIsual_active && *p_sel != 'o');
// In virtual edit mode, there's no such thing as "past_line", as lines
// are (theoretically) infinitely long.
if (virtual_active(curwin)) {
past_line = false;
}
for (n = cap->count1; n > 0; n--) {
if ((!past_line && oneright() == false)
|| (past_line && *get_cursor_pos_ptr() == NUL)) {
// <Space> wraps to next line if 'whichwrap' has 's'.
// 'l' wraps to next line if 'whichwrap' has 'l'.
// CURS_RIGHT wraps to next line if 'whichwrap' has '>'.
if (((cap->cmdchar == ' ' && vim_strchr(p_ww, 's') != NULL)
|| (cap->cmdchar == 'l' && vim_strchr(p_ww, 'l') != NULL)
|| (cap->cmdchar == K_RIGHT && vim_strchr(p_ww, '>') != NULL))
&& curwin->w_cursor.lnum < curbuf->b_ml.ml_line_count) {
// When deleting we also count the NL as a character.
// Set cap->oap->inclusive when last char in the line is
// included, move to next line after that
if (cap->oap->op_type != OP_NOP
&& !cap->oap->inclusive
&& !LINEEMPTY(curwin->w_cursor.lnum)) {
cap->oap->inclusive = true;
} else {
curwin->w_cursor.lnum++;
curwin->w_cursor.col = 0;
curwin->w_cursor.coladd = 0;
curwin->w_set_curswant = true;
cap->oap->inclusive = false;
}
continue;
}
if (cap->oap->op_type == OP_NOP) {
// Only beep and flush if not moved at all
if (n == cap->count1) {
beep_flush();
}
} else {
if (!LINEEMPTY(curwin->w_cursor.lnum)) {
cap->oap->inclusive = true;
}
}
break;
} else if (past_line) {
curwin->w_set_curswant = true;
if (virtual_active(curwin)) {
oneright();
} else {
curwin->w_cursor.col += utfc_ptr2len(get_cursor_pos_ptr());
}
}
}
if (n != cap->count1 && (fdo_flags & FDO_HOR) && KeyTyped
&& cap->oap->op_type == OP_NOP) {
foldOpenCursor();
}
}
/// Cursor left commands.
///
/// @return true when operator end should not be adjusted.
static void nv_left(cmdarg_T *cap)
{
int n;
if (mod_mask & (MOD_MASK_SHIFT | MOD_MASK_CTRL)) {
// <C-Left> and <S-Left> move a word or WORD left
if (mod_mask & MOD_MASK_CTRL) {
cap->arg = 1;
}
nv_bck_word(cap);
return;
}
cap->oap->motion_type = kMTCharWise;
cap->oap->inclusive = false;
for (n = cap->count1; n > 0; n--) {
if (oneleft() == false) {
// <BS> and <Del> wrap to previous line if 'whichwrap' has 'b'.
// 'h' wraps to previous line if 'whichwrap' has 'h'.
// CURS_LEFT wraps to previous line if 'whichwrap' has '<'.
if ((((cap->cmdchar == K_BS || cap->cmdchar == Ctrl_H)
&& vim_strchr(p_ww, 'b') != NULL)
|| (cap->cmdchar == 'h' && vim_strchr(p_ww, 'h') != NULL)
|| (cap->cmdchar == K_LEFT && vim_strchr(p_ww, '<') != NULL))
&& curwin->w_cursor.lnum > 1) {
curwin->w_cursor.lnum--;
coladvance(curwin, MAXCOL);
curwin->w_set_curswant = true;
// When the NL before the first char has to be deleted we
// put the cursor on the NUL after the previous line.
// This is a very special case, be careful!
// Don't adjust op_end now, otherwise it won't work.
if ((cap->oap->op_type == OP_DELETE || cap->oap->op_type == OP_CHANGE)
&& !LINEEMPTY(curwin->w_cursor.lnum)) {
char *cp = get_cursor_pos_ptr();
if (*cp != NUL) {
curwin->w_cursor.col += utfc_ptr2len(cp);
}
cap->retval |= CA_NO_ADJ_OP_END;
}
continue;
} else if (cap->oap->op_type == OP_NOP && n == cap->count1) {
// Only beep and flush if not moved at all
beep_flush();
}
break;
}
}
if (n != cap->count1 && (fdo_flags & FDO_HOR) && KeyTyped
&& cap->oap->op_type == OP_NOP) {
foldOpenCursor();
}
}
/// Cursor up commands.
/// cap->arg is true for "-": Move cursor to first non-blank.
static void nv_up(cmdarg_T *cap)
{
if (mod_mask & MOD_MASK_SHIFT) {
// <S-Up> is page up
cap->arg = BACKWARD;
nv_page(cap);
return;
}
cap->oap->motion_type = kMTLineWise;
if (cursor_up(cap->count1, cap->oap->op_type == OP_NOP) == false) {
clearopbeep(cap->oap);
} else if (cap->arg) {
beginline(BL_WHITE | BL_FIX);
}
}
/// Cursor down commands.
/// cap->arg is true for CR and "+": Move cursor to first non-blank.
static void nv_down(cmdarg_T *cap)
{
if (mod_mask & MOD_MASK_SHIFT) {
// <S-Down> is page down
cap->arg = FORWARD;
nv_page(cap);
} else if (bt_quickfix(curbuf) && cap->cmdchar == CAR) {
// Quickfix window only: view the result under the cursor.
qf_view_result(false);
} else {
// In the cmdline window a <CR> executes the command.
if (cmdwin_type != 0 && cap->cmdchar == CAR) {
cmdwin_result = CAR;
} else if (bt_prompt(curbuf) && cap->cmdchar == CAR
&& curwin->w_cursor.lnum == curbuf->b_ml.ml_line_count) {
// In a prompt buffer a <CR> in the last line invokes the callback.
invoke_prompt_callback();
if (restart_edit == 0) {
restart_edit = 'a';
}
} else {
cap->oap->motion_type = kMTLineWise;
if (cursor_down(cap->count1, cap->oap->op_type == OP_NOP) == false) {
clearopbeep(cap->oap);
} else if (cap->arg) {
beginline(BL_WHITE | BL_FIX);
}
}
}
}
/// Grab the file name under the cursor and edit it.
static void nv_gotofile(cmdarg_T *cap)
{
linenr_T lnum = -1;
if (check_text_or_curbuf_locked(cap->oap)) {
return;
}
if (!check_can_set_curbuf_disabled()) {
return;
}
char *ptr = grab_file_name(cap->count1, &lnum);
if (ptr != NULL) {
// do autowrite if necessary
if (curbufIsChanged() && curbuf->b_nwindows <= 1 && !buf_hide(curbuf)) {
autowrite(curbuf, false);
}
setpcmark();
if (do_ecmd(0, ptr, NULL, NULL, ECMD_LAST,
buf_hide(curbuf) ? ECMD_HIDE : 0, curwin) == OK
&& cap->nchar == 'F' && lnum >= 0) {
curwin->w_cursor.lnum = lnum;
check_cursor_lnum(curwin);
beginline(BL_SOL | BL_FIX);
}
xfree(ptr);
} else {
clearop(cap->oap);
}
}
/// <End> command: to end of current line or last line.
static void nv_end(cmdarg_T *cap)
{
if (cap->arg || (mod_mask & MOD_MASK_CTRL)) { // CTRL-END = goto last line
cap->arg = true;
nv_goto(cap);
cap->count1 = 1; // to end of current line
}
nv_dollar(cap);
}
/// Handle the "$" command.
static void nv_dollar(cmdarg_T *cap)
{
cap->oap->motion_type = kMTCharWise;
cap->oap->inclusive = true;
// In virtual mode when off the edge of a line and an operator
// is pending (whew!) keep the cursor where it is.
// Otherwise, send it to the end of the line.
if (!virtual_active(curwin) || gchar_cursor() != NUL
|| cap->oap->op_type == OP_NOP) {
curwin->w_curswant = MAXCOL; // so we stay at the end
}
if (cursor_down(cap->count1 - 1,
cap->oap->op_type == OP_NOP) == false) {
clearopbeep(cap->oap);
} else if ((fdo_flags & FDO_HOR) && KeyTyped && cap->oap->op_type == OP_NOP) {
foldOpenCursor();
}
}
/// Implementation of '?' and '/' commands.
/// If cap->arg is true don't set PC mark.
static void nv_search(cmdarg_T *cap)
{
oparg_T *oap = cap->oap;
pos_T save_cursor = curwin->w_cursor;
if (cap->cmdchar == '?' && cap->oap->op_type == OP_ROT13) {
// Translate "g??" to "g?g?"
cap->cmdchar = 'g';
cap->nchar = '?';
nv_operator(cap);
return;
}
// When using 'incsearch' the cursor may be moved to set a different search
// start position.
cap->searchbuf = getcmdline(cap->cmdchar, cap->count1, 0, true);
if (cap->searchbuf == NULL) {
clearop(oap);
return;
}
normal_search(cap, cap->cmdchar, cap->searchbuf, strlen(cap->searchbuf),
(cap->arg || !equalpos(save_cursor, curwin->w_cursor))
? 0 : SEARCH_MARK, NULL);
}
/// Handle "N" and "n" commands.
/// cap->arg is SEARCH_REV for "N", 0 for "n".
static void nv_next(cmdarg_T *cap)
{
pos_T old = curwin->w_cursor;
int wrapped = false;
int i = normal_search(cap, 0, NULL, 0, SEARCH_MARK | cap->arg, &wrapped);
if (i == 1 && !wrapped && equalpos(old, curwin->w_cursor)) {
// Avoid getting stuck on the current cursor position, which can happen when
// an offset is given and the cursor is on the last char in the buffer:
// Repeat with count + 1.
cap->count1 += 1;
normal_search(cap, 0, NULL, 0, SEARCH_MARK | cap->arg, NULL);
cap->count1 -= 1;
}
// Redraw the window to refresh the highlighted matches.
if (i > 0 && p_hls && !no_hlsearch
&& win_hl_attr(curwin, HLF_LC) != win_hl_attr(curwin, HLF_L)) {
redraw_later(curwin, UPD_SOME_VALID);
}
}
/// Search for "pat" in direction "dir" ('/' or '?', 0 for repeat).
/// Uses only cap->count1 and cap->oap from "cap".
///
/// @param opt extra flags for do_search()
///
/// @return 0 for failure, 1 for found, 2 for found and line offset added.
static int normal_search(cmdarg_T *cap, int dir, char *pat, size_t patlen, int opt, int *wrapped)
{
searchit_arg_T sia;
pos_T const prev_cursor = curwin->w_cursor;
cap->oap->motion_type = kMTCharWise;
cap->oap->inclusive = false;
cap->oap->use_reg_one = true;
curwin->w_set_curswant = true;
CLEAR_FIELD(sia);
int i = do_search(cap->oap, dir, dir, pat, patlen, cap->count1,
opt | SEARCH_OPT | SEARCH_ECHO | SEARCH_MSG, &sia);
if (wrapped != NULL) {
*wrapped = sia.sa_wrapped;
}
if (i == 0) {
clearop(cap->oap);
} else {
if (i == 2) {
cap->oap->motion_type = kMTLineWise;
}
curwin->w_cursor.coladd = 0;
if (cap->oap->op_type == OP_NOP && (fdo_flags & FDO_SEARCH) && KeyTyped) {
foldOpenCursor();
}
}
// Redraw the window to refresh the highlighted matches.
if (!equalpos(curwin->w_cursor, prev_cursor) && p_hls && !no_hlsearch
&& win_hl_attr(curwin, HLF_LC) != win_hl_attr(curwin, HLF_L)) {
redraw_later(curwin, UPD_SOME_VALID);
}
// "/$" will put the cursor after the end of the line, may need to
// correct that here
check_cursor(curwin);
return i;
}
/// Character search commands.
/// cap->arg is BACKWARD for 'F' and 'T', FORWARD for 'f' and 't', true for
/// ',' and false for ';'.
/// cap->nchar is NUL for ',' and ';' (repeat the search)
static void nv_csearch(cmdarg_T *cap)
{
bool t_cmd;
if (cap->cmdchar == 't' || cap->cmdchar == 'T') {
t_cmd = true;
} else {
t_cmd = false;
}
cap->oap->motion_type = kMTCharWise;
if (IS_SPECIAL(cap->nchar) || searchc(cap, t_cmd) == false) {
clearopbeep(cap->oap);
return;
}
curwin->w_set_curswant = true;
// Include a Tab for "tx" and for "dfx".
if (gchar_cursor() == TAB && virtual_active(curwin) && cap->arg == FORWARD
&& (t_cmd || cap->oap->op_type != OP_NOP)) {
colnr_T scol, ecol;
getvcol(curwin, &curwin->w_cursor, &scol, NULL, &ecol);
curwin->w_cursor.coladd = ecol - scol;
} else {
curwin->w_cursor.coladd = 0;
}
adjust_for_sel(cap);
if ((fdo_flags & FDO_HOR) && KeyTyped && cap->oap->op_type == OP_NOP) {
foldOpenCursor();
}
}
/// "[{", "[(", "]}" or "])": go to Nth unclosed '{', '(', '}' or ')'
/// "[#", "]#": go to start/end of Nth innermost #if..#endif construct.
/// "[/", "[*", "]/", "]*": go to Nth comment start/end.
/// "[m" or "]m" search for prev/next start of (Java) method.
/// "[M" or "]M" search for prev/next end of (Java) method.
static void nv_bracket_block(cmdarg_T *cap, const pos_T *old_pos)
{
pos_T new_pos = { 0, 0, 0 };
pos_T *pos = NULL; // init for GCC
pos_T prev_pos;
int n;
int findc;
if (cap->nchar == '*') {
cap->nchar = '/';
}
prev_pos.lnum = 0;
if (cap->nchar == 'm' || cap->nchar == 'M') {
if (cap->cmdchar == '[') {
findc = '{';
} else {
findc = '}';
}
n = 9999;
} else {
findc = cap->nchar;
n = cap->count1;
}
for (; n > 0; n--) {
if ((pos = findmatchlimit(cap->oap, findc,
(cap->cmdchar == '[') ? FM_BACKWARD : FM_FORWARD, 0)) == NULL) {
if (new_pos.lnum == 0) { // nothing found
if (cap->nchar != 'm' && cap->nchar != 'M') {
clearopbeep(cap->oap);
}
} else {
pos = &new_pos; // use last one found
}
break;
}
prev_pos = new_pos;
curwin->w_cursor = *pos;
new_pos = *pos;
}
curwin->w_cursor = *old_pos;
// Handle "[m", "]m", "[M" and "[M". The findmatchlimit() only
// brought us to the match for "[m" and "]M" when inside a method.
// Try finding the '{' or '}' we want to be at.
// Also repeat for the given count.
if (cap->nchar == 'm' || cap->nchar == 'M') {
int c;
// norm is true for "]M" and "[m"
bool norm = ((findc == '{') == (cap->nchar == 'm'));
n = cap->count1;
// found a match: we were inside a method
if (prev_pos.lnum != 0) {
pos = &prev_pos;
curwin->w_cursor = prev_pos;
if (norm) {
n--;
}
} else {
pos = NULL;
}
while (n > 0) {
while (true) {
if ((findc == '{' ? dec_cursor() : inc_cursor()) < 0) {
// if not found anything, that's an error
if (pos == NULL) {
clearopbeep(cap->oap);
}
n = 0;
break;
}
c = gchar_cursor();
if (c == '{' || c == '}') {
// Must have found end/start of class: use it.
// Or found the place to be at.
if ((c == findc && norm) || (n == 1 && !norm)) {
new_pos = curwin->w_cursor;
pos = &new_pos;
n = 0;
} else if (new_pos.lnum == 0) {
// if no match found at all, we started outside of the
// class and we're inside now. Just go on.
new_pos = curwin->w_cursor;
pos = &new_pos;
} else if ((pos = findmatchlimit(cap->oap, findc,
(cap->cmdchar == '[') ? FM_BACKWARD : FM_FORWARD,
0)) == NULL) {
// found start/end of other method: go to match
n = 0;
} else {
curwin->w_cursor = *pos;
}
break;
}
}
n--;
}
curwin->w_cursor = *old_pos;
if (pos == NULL && new_pos.lnum != 0) {
clearopbeep(cap->oap);
}
}
if (pos != NULL) {
setpcmark();
curwin->w_cursor = *pos;
curwin->w_set_curswant = true;
if ((fdo_flags & FDO_BLOCK) && KeyTyped
&& cap->oap->op_type == OP_NOP) {
foldOpenCursor();
}
}
}
/// "[" and "]" commands.
/// cap->arg is BACKWARD for "[" and FORWARD for "]".
static void nv_brackets(cmdarg_T *cap)
{
int flag;
int n;
cap->oap->motion_type = kMTCharWise;
cap->oap->inclusive = false;
pos_T old_pos = curwin->w_cursor; // cursor position before command
curwin->w_cursor.coladd = 0; // TODO(Unknown): don't do this for an error.
// "[f" or "]f" : Edit file under the cursor (same as "gf")
if (cap->nchar == 'f') {
nv_gotofile(cap);
} else if (vim_strchr("iI\011dD\004", cap->nchar) != NULL) {
// Find the occurrence(s) of the identifier or define under cursor
// in current and included files or jump to the first occurrence.
//
// search list jump
// fwd bwd fwd bwd fwd bwd
// identifier "]i" "[i" "]I" "[I" "]^I" "[^I"
// define "]d" "[d" "]D" "[D" "]^D" "[^D"
char *ptr;
size_t len;
if ((len = find_ident_under_cursor(&ptr, FIND_IDENT)) == 0) {
clearop(cap->oap);
} else {
// Make a copy, if the line was changed it will be freed.
ptr = xmemdupz(ptr, len);
find_pattern_in_path(ptr, 0, len, true,
cap->count0 == 0 ? !isupper(cap->nchar) : false,
(((cap->nchar & 0xf) == ('d' & 0xf))
? FIND_DEFINE
: FIND_ANY),
cap->count1,
(isupper(cap->nchar) ? ACTION_SHOW_ALL
: islower(cap->nchar) ? ACTION_SHOW
: ACTION_GOTO),
(cap->cmdchar == ']'
? curwin->w_cursor.lnum + 1
: 1),
MAXLNUM,
false);
xfree(ptr);
curwin->w_set_curswant = true;
}
} else if ((cap->cmdchar == '[' && vim_strchr("{(*/#mM", cap->nchar) != NULL)
|| (cap->cmdchar == ']' && vim_strchr("})*/#mM", cap->nchar) != NULL)) {
// "[{", "[(", "]}" or "])": go to Nth unclosed '{', '(', '}' or ')'
// "[#", "]#": go to start/end of Nth innermost #if..#endif construct.
// "[/", "[*", "]/", "]*": go to Nth comment start/end.
// "[m" or "]m" search for prev/next start of (Java) method.
// "[M" or "]M" search for prev/next end of (Java) method.
nv_bracket_block(cap, &old_pos);
} else if (cap->nchar == '[' || cap->nchar == ']') {
// "[[", "[]", "]]" and "][": move to start or end of function
if (cap->nchar == cap->cmdchar) { // "]]" or "[["
flag = '{';
} else {
flag = '}'; // "][" or "[]"
}
curwin->w_set_curswant = true;
// Imitate strange Vi behaviour: When using "]]" with an operator we also stop at '}'.
if (!findpar(&cap->oap->inclusive, cap->arg, cap->count1, flag,
(cap->oap->op_type != OP_NOP
&& cap->arg == FORWARD && flag == '{'))) {
clearopbeep(cap->oap);
} else {
if (cap->oap->op_type == OP_NOP) {
beginline(BL_WHITE | BL_FIX);
}
if ((fdo_flags & FDO_BLOCK) && KeyTyped && cap->oap->op_type == OP_NOP) {
foldOpenCursor();
}
}
} else if (cap->nchar == 'p' || cap->nchar == 'P') {
// "[p", "[P", "]P" and "]p": put with indent adjustment
nv_put_opt(cap, true);
} else if (cap->nchar == '\'' || cap->nchar == '`') {
// "['", "[`", "]'" and "]`": jump to next mark
fmark_T *fm = pos_to_mark(curbuf, NULL, curwin->w_cursor);
assert(fm != NULL);
fmark_T *prev_fm;
for (n = cap->count1; n > 0; n--) {
prev_fm = fm;
fm = getnextmark(&fm->mark, cap->cmdchar == '[' ? BACKWARD : FORWARD,
cap->nchar == '\'');
if (fm == NULL) {
break;
}
}
if (fm == NULL) {
fm = prev_fm;
}
MarkMove flags = kMarkContext;
flags |= cap->nchar == '\'' ? kMarkBeginLine : 0;
nv_mark_move_to(cap, flags, fm);
} else if (cap->nchar >= K_RIGHTRELEASE && cap->nchar <= K_LEFTMOUSE) {
// [ or ] followed by a middle mouse click: put selected text with
// indent adjustment. Any other button just does as usual.
do_mouse(cap->oap, cap->nchar,
(cap->cmdchar == ']') ? FORWARD : BACKWARD,
cap->count1, PUT_FIXINDENT);
} else if (cap->nchar == 'z') {
// "[z" and "]z": move to start or end of open fold.
if (foldMoveTo(false, cap->cmdchar == ']' ? FORWARD : BACKWARD,
cap->count1) == false) {
clearopbeep(cap->oap);
}
} else if (cap->nchar == 'c') {
// "[c" and "]c": move to next or previous diff-change.
if (diff_move_to(cap->cmdchar == ']' ? FORWARD : BACKWARD,
cap->count1) == false) {
clearopbeep(cap->oap);
}
} else if (cap->nchar == 'r' || cap->nchar == 's' || cap->nchar == 'S') {
// "[r", "[s", "[S", "]r", "]s" and "]S": move to next spell error.
setpcmark();
for (n = 0; n < cap->count1; n++) {
if (spell_move_to(curwin, cap->cmdchar == ']' ? FORWARD : BACKWARD,
cap->nchar == 's'
? SMT_ALL
: cap->nchar == 'r' ? SMT_RARE : SMT_BAD,
false, NULL) == 0) {
clearopbeep(cap->oap);
break;
}
curwin->w_set_curswant = true;
}
if (cap->oap->op_type == OP_NOP && (fdo_flags & FDO_SEARCH) && KeyTyped) {
foldOpenCursor();
}
} else {
// Not a valid cap->nchar.
clearopbeep(cap->oap);
}
}
/// Handle Normal mode "%" command.
static void nv_percent(cmdarg_T *cap)
{
linenr_T lnum = curwin->w_cursor.lnum;
cap->oap->inclusive = true;
if (cap->count0) { // {cnt}% : goto {cnt} percentage in file
if (cap->count0 > 100) {
clearopbeep(cap->oap);
} else {
cap->oap->motion_type = kMTLineWise;
setpcmark();
// Round up, so 'normal 100%' always jumps at the line line.
// Beyond 21474836 lines, (ml_line_count * 100 + 99) would
// overflow on 32-bits, so use a formula with less accuracy
// to avoid overflows.
if (curbuf->b_ml.ml_line_count >= 21474836) {
curwin->w_cursor.lnum = (curbuf->b_ml.ml_line_count + 99)
/ 100 * cap->count0;
} else {
curwin->w_cursor.lnum = (curbuf->b_ml.ml_line_count *
cap->count0 + 99) / 100;
}
curwin->w_cursor.lnum = MIN(MAX(curwin->w_cursor.lnum, 1), curbuf->b_ml.ml_line_count);
beginline(BL_SOL | BL_FIX);
}
} else { // "%" : go to matching paren
pos_T *pos;
cap->oap->motion_type = kMTCharWise;
cap->oap->use_reg_one = true;
if ((pos = findmatch(cap->oap, NUL)) == NULL) {
clearopbeep(cap->oap);
} else {
setpcmark();
curwin->w_cursor = *pos;
curwin->w_set_curswant = true;
curwin->w_cursor.coladd = 0;
adjust_for_sel(cap);
}
}
if (cap->oap->op_type == OP_NOP
&& lnum != curwin->w_cursor.lnum
&& (fdo_flags & FDO_PERCENT)
&& KeyTyped) {
foldOpenCursor();
}
}
/// Handle "(" and ")" commands.
/// cap->arg is BACKWARD for "(" and FORWARD for ")".
static void nv_brace(cmdarg_T *cap)
{
cap->oap->motion_type = kMTCharWise;
cap->oap->use_reg_one = true;
// The motion used to be inclusive for "(", but that is not what Vi does.
cap->oap->inclusive = false;
curwin->w_set_curswant = true;
if (findsent(cap->arg, cap->count1) == FAIL) {
clearopbeep(cap->oap);
return;
}
// Don't leave the cursor on the NUL past end of line.
adjust_cursor(cap->oap);
curwin->w_cursor.coladd = 0;
if ((fdo_flags & FDO_BLOCK) && KeyTyped && cap->oap->op_type == OP_NOP) {
foldOpenCursor();
}
}
/// "m" command: Mark a position.
static void nv_mark(cmdarg_T *cap)
{
if (checkclearop(cap->oap)) {
return;
}
if (setmark(cap->nchar) == false) {
clearopbeep(cap->oap);
}
}
/// "{" and "}" commands.
/// cmd->arg is BACKWARD for "{" and FORWARD for "}".
static void nv_findpar(cmdarg_T *cap)
{
cap->oap->motion_type = kMTCharWise;
cap->oap->inclusive = false;
cap->oap->use_reg_one = true;
curwin->w_set_curswant = true;
if (!findpar(&cap->oap->inclusive, cap->arg, cap->count1, NUL, false)) {
clearopbeep(cap->oap);
return;
}
curwin->w_cursor.coladd = 0;
if ((fdo_flags & FDO_BLOCK) && KeyTyped && cap->oap->op_type == OP_NOP) {
foldOpenCursor();
}
}
/// "u" command: Undo or make lower case.
static void nv_undo(cmdarg_T *cap)
{
if (cap->oap->op_type == OP_LOWER
|| VIsual_active) {
// translate "<Visual>u" to "<Visual>gu" and "guu" to "gugu"
cap->cmdchar = 'g';
cap->nchar = 'u';
nv_operator(cap);
} else {
nv_kundo(cap);
}
}
/// <Undo> command.
static void nv_kundo(cmdarg_T *cap)
{
if (checkclearopq(cap->oap)) {
return;
}
if (bt_prompt(curbuf)) {
clearopbeep(cap->oap);
return;
}
u_undo(cap->count1);
curwin->w_set_curswant = true;
}
/// Handle the "r" command.
static void nv_replace(cmdarg_T *cap)
{
int had_ctrl_v;
if (checkclearop(cap->oap)) {
return;
}
if (bt_prompt(curbuf) && !prompt_curpos_editable()) {
clearopbeep(cap->oap);
return;
}
// get another character
if (cap->nchar == Ctrl_V || cap->nchar == Ctrl_Q) {
had_ctrl_v = Ctrl_V;
cap->nchar = get_literal(false);
// Don't redo a multibyte character with CTRL-V.
if (cap->nchar > DEL) {
had_ctrl_v = NUL;
}
} else {
had_ctrl_v = NUL;
}
// Abort if the character is a special key.
if (IS_SPECIAL(cap->nchar)) {
clearopbeep(cap->oap);
return;
}
// Visual mode "r"
if (VIsual_active) {
if (got_int) {
got_int = false;
}
if (had_ctrl_v) {
// Use a special (negative) number to make a difference between a
// literal CR or NL and a line break.
if (cap->nchar == CAR) {
cap->nchar = REPLACE_CR_NCHAR;
} else if (cap->nchar == NL) {
cap->nchar = REPLACE_NL_NCHAR;
}
}
nv_operator(cap);
return;
}
// Break tabs, etc.
if (virtual_active(curwin)) {
if (u_save_cursor() == false) {
return;
}
if (gchar_cursor() == NUL) {
// Add extra space and put the cursor on the first one.
coladvance_force((colnr_T)(getviscol() + cap->count1));
assert(cap->count1 <= INT_MAX);
curwin->w_cursor.col -= (colnr_T)cap->count1;
} else if (gchar_cursor() == TAB) {
coladvance_force(getviscol());
}
}
// Abort if not enough characters to replace.
if ((size_t)get_cursor_pos_len() < (unsigned)cap->count1
|| (mb_charlen(get_cursor_pos_ptr()) < cap->count1)) {
clearopbeep(cap->oap);
return;
}
// Replacing with a TAB is done by edit() when it is complicated because
// 'expandtab' or 'smarttab' is set. CTRL-V TAB inserts a literal TAB.
// Other characters are done below to avoid problems with things like
// CTRL-V 048 (for edit() this would be R CTRL-V 0 ESC).
if (had_ctrl_v != Ctrl_V && cap->nchar == '\t' && (curbuf->b_p_et || p_sta)) {
stuffnumReadbuff(cap->count1);
stuffcharReadbuff('R');
stuffcharReadbuff('\t');
stuffcharReadbuff(ESC);
return;
}
// save line for undo
if (u_save_cursor() == false) {
return;
}
if (had_ctrl_v != Ctrl_V && (cap->nchar == '\r' || cap->nchar == '\n')) {
// Replace character(s) by a single newline.
// Strange vi behaviour: Only one newline is inserted.
// Delete the characters here.
// Insert the newline with an insert command, takes care of
// autoindent. The insert command depends on being on the last
// character of a line or not.
del_chars(cap->count1, false); // delete the characters
stuffcharReadbuff('\r');
stuffcharReadbuff(ESC);
// Give 'r' to edit(), to get the redo command right.
invoke_edit(cap, true, 'r', false);
} else {
prep_redo(cap->oap->regname, cap->count1,
NUL, 'r', NUL, had_ctrl_v, cap->nchar);
curbuf->b_op_start = curwin->w_cursor;
const int old_State = State;
if (cap->ncharC1 != 0) {
AppendCharToRedobuff(cap->ncharC1);
}
if (cap->ncharC2 != 0) {
AppendCharToRedobuff(cap->ncharC2);
}
// This is slow, but it handles replacing a single-byte with a
// multi-byte and the other way around. Also handles adding
// composing characters for utf-8.
for (int n = cap->count1; n > 0; n--) {
State = MODE_REPLACE;
if (cap->nchar == Ctrl_E || cap->nchar == Ctrl_Y) {
int c = ins_copychar(curwin->w_cursor.lnum
+ (cap->nchar == Ctrl_Y ? -1 : 1));
if (c != NUL) {
ins_char(c);
} else {
// will be decremented further down
curwin->w_cursor.col++;
}
} else {
ins_char(cap->nchar);
}
State = old_State;
if (cap->ncharC1 != 0) {
ins_char(cap->ncharC1);
}
if (cap->ncharC2 != 0) {
ins_char(cap->ncharC2);
}
}
curwin->w_cursor.col--; // cursor on the last replaced char
// if the character on the left of the current cursor is a multi-byte
// character, move two characters left
mb_adjust_cursor();
curbuf->b_op_end = curwin->w_cursor;
curwin->w_set_curswant = true;
set_last_insert(cap->nchar);
}
foldUpdateAfterInsert();
}
/// 'o': Exchange start and end of Visual area.
/// 'O': same, but in block mode exchange left and right corners.
static void v_swap_corners(int cmdchar)
{
colnr_T left, right;
if (cmdchar == 'O' && VIsual_mode == Ctrl_V) {
pos_T old_cursor = curwin->w_cursor;
getvcols(curwin, &old_cursor, &VIsual, &left, &right);
curwin->w_cursor.lnum = VIsual.lnum;
coladvance(curwin, left);
VIsual = curwin->w_cursor;
curwin->w_cursor.lnum = old_cursor.lnum;
curwin->w_curswant = right;
// 'selection "exclusive" and cursor at right-bottom corner: move it
// right one column
if (old_cursor.lnum >= VIsual.lnum && *p_sel == 'e') {
curwin->w_curswant++;
}
coladvance(curwin, curwin->w_curswant);
if (curwin->w_cursor.col == old_cursor.col
&& (!virtual_active(curwin)
|| curwin->w_cursor.coladd ==
old_cursor.coladd)) {
curwin->w_cursor.lnum = VIsual.lnum;
if (old_cursor.lnum <= VIsual.lnum && *p_sel == 'e') {
right++;
}
coladvance(curwin, right);
VIsual = curwin->w_cursor;
curwin->w_cursor.lnum = old_cursor.lnum;
coladvance(curwin, left);
curwin->w_curswant = left;
}
} else {
pos_T old_cursor = curwin->w_cursor;
curwin->w_cursor = VIsual;
VIsual = old_cursor;
curwin->w_set_curswant = true;
}
}
/// "R" (cap->arg is false) and "gR" (cap->arg is true).
static void nv_Replace(cmdarg_T *cap)
{
if (VIsual_active) { // "R" is replace lines
cap->cmdchar = 'c';
cap->nchar = NUL;
VIsual_mode_orig = VIsual_mode; // remember original area for gv
VIsual_mode = 'V';
nv_operator(cap);
return;
}
if (checkclearopq(cap->oap)) {
return;
}
if (!MODIFIABLE(curbuf)) {
emsg(_(e_modifiable));
} else {
if (virtual_active(curwin)) {
coladvance(curwin, getviscol());
}
invoke_edit(cap, false, cap->arg ? 'V' : 'R', false);
}
}
/// "gr".
static void nv_vreplace(cmdarg_T *cap)
{
if (VIsual_active) {
cap->cmdchar = 'r';
cap->nchar = cap->extra_char;
nv_replace(cap); // Do same as "r" in Visual mode for now
return;
}
if (checkclearopq(cap->oap)) {
return;
}
if (!MODIFIABLE(curbuf)) {
emsg(_(e_modifiable));
} else {
if (cap->extra_char == Ctrl_V || cap->extra_char == Ctrl_Q) {
// get another character
cap->extra_char = get_literal(false);
}
if (cap->extra_char < ' ') {
// Prefix a control character with CTRL-V to avoid it being used as
// a command.
stuffcharReadbuff(Ctrl_V);
}
stuffcharReadbuff(cap->extra_char);
stuffcharReadbuff(ESC);
if (virtual_active(curwin)) {
coladvance(curwin, getviscol());
}
invoke_edit(cap, true, 'v', false);
}
}
/// Swap case for "~" command, when it does not work like an operator.
static void n_swapchar(cmdarg_T *cap)
{
bool did_change = false;
if (checkclearopq(cap->oap)) {
return;
}
if (LINEEMPTY(curwin->w_cursor.lnum) && vim_strchr(p_ww, '~') == NULL) {
clearopbeep(cap->oap);
return;
}
prep_redo_cmd(cap);
if (u_save_cursor() == false) {
return;
}
pos_T startpos = curwin->w_cursor;
for (int n = cap->count1; n > 0; n--) {
did_change |= swapchar(cap->oap->op_type, &curwin->w_cursor);
inc_cursor();
if (gchar_cursor() == NUL) {
if (vim_strchr(p_ww, '~') != NULL
&& curwin->w_cursor.lnum < curbuf->b_ml.ml_line_count) {
curwin->w_cursor.lnum++;
curwin->w_cursor.col = 0;
if (n > 1) {
if (u_savesub(curwin->w_cursor.lnum) == false) {
break;
}
u_clearline(curbuf);
}
} else {
break;
}
}
}
check_cursor(curwin);
curwin->w_set_curswant = true;
if (did_change) {
changed_lines(curbuf, startpos.lnum, startpos.col, curwin->w_cursor.lnum + 1,
0, true);
curbuf->b_op_start = startpos;
curbuf->b_op_end = curwin->w_cursor;
if (curbuf->b_op_end.col > 0) {
curbuf->b_op_end.col--;
}
}
}
/// Move the cursor to the mark position
///
/// Wrapper to mark_move_to() that also handles normal mode command arguments.
/// @note It will switch the buffer if neccesarry, move the cursor and set the
/// view depending on the given flags.
/// @param cap command line arguments
/// @param flags for mark_move_to()
/// @param mark mark
/// @return The result of calling mark_move_to()
static MarkMoveRes nv_mark_move_to(cmdarg_T *cap, MarkMove flags, fmark_T *fm)
{
MarkMoveRes res = mark_move_to(fm, flags);
if (res & kMarkMoveFailed) {
clearop(cap->oap);
}
cap->oap->motion_type = flags & kMarkBeginLine ? kMTLineWise : kMTCharWise;
if (cap->cmdchar == '`') {
cap->oap->use_reg_one = true;
}
cap->oap->inclusive = false; // ignored if not kMTCharWise
curwin->w_set_curswant = true;
return res;
}
/// Handle commands that are operators in Visual mode.
static void v_visop(cmdarg_T *cap)
{
static char trans[] = "YyDdCcxdXdAAIIrr";
// Uppercase means linewise, except in block mode, then "D" deletes till
// the end of the line, and "C" replaces till EOL
if (isupper(cap->cmdchar)) {
if (VIsual_mode != Ctrl_V) {
VIsual_mode_orig = VIsual_mode;
VIsual_mode = 'V';
} else if (cap->cmdchar == 'C' || cap->cmdchar == 'D') {
curwin->w_curswant = MAXCOL;
}
}
cap->cmdchar = (uint8_t)(*(vim_strchr(trans, cap->cmdchar) + 1));
nv_operator(cap);
}
/// "s" and "S" commands.
static void nv_subst(cmdarg_T *cap)
{
if (bt_prompt(curbuf) && !prompt_curpos_editable()) {
clearopbeep(cap->oap);
return;
}
if (VIsual_active) { // "vs" and "vS" are the same as "vc"
if (cap->cmdchar == 'S') {
VIsual_mode_orig = VIsual_mode;
VIsual_mode = 'V';
}
cap->cmdchar = 'c';
nv_operator(cap);
} else {
nv_optrans(cap);
}
}
/// Abbreviated commands.
static void nv_abbrev(cmdarg_T *cap)
{
if (cap->cmdchar == K_DEL || cap->cmdchar == K_KDEL) {
cap->cmdchar = 'x'; // DEL key behaves like 'x'
}
// in Visual mode these commands are operators
if (VIsual_active) {
v_visop(cap);
} else {
nv_optrans(cap);
}
}
/// Translate a command into another command.
static void nv_optrans(cmdarg_T *cap)
{
static const char *(ar[]) = { "dl", "dh", "d$", "c$", "cl", "cc", "yy",
":s\r" };
static const char *str = "xXDCsSY&";
if (!checkclearopq(cap->oap)) {
if (cap->count0) {
stuffnumReadbuff(cap->count0);
}
stuffReadbuff(ar[strchr(str, (char)cap->cmdchar) - str]);
}
cap->opcount = 0;
}
/// "'" and "`" commands. Also for "g'" and "g`".
/// cap->arg is true for "'" and "g'".
static void nv_gomark(cmdarg_T *cap)
{
int name;
MarkMove flags = jop_flags & JOP_VIEW ? kMarkSetView : 0; // flags for moving to the mark
if (cap->oap->op_type != OP_NOP) {
// When there is a pending operator, do not restore the view as this is usually unexpected.
flags = 0;
}
MarkMoveRes move_res = 0; // Result from moving to the mark
const bool old_KeyTyped = KeyTyped; // getting file may reset it
if (cap->cmdchar == 'g') {
name = cap->extra_char;
flags |= KMarkNoContext;
} else {
name = cap->nchar;
flags |= kMarkContext;
}
flags |= cap->arg ? kMarkBeginLine : 0;
flags |= cap->count0 ? kMarkSetView : 0;
fmark_T *fm = mark_get(curbuf, curwin, NULL, kMarkAll, name);
move_res = nv_mark_move_to(cap, flags, fm);
// May need to clear the coladd that a mark includes.
if (!virtual_active(curwin)) {
curwin->w_cursor.coladd = 0;
}
if (cap->oap->op_type == OP_NOP
&& move_res & kMarkMoveSuccess
&& (move_res & kMarkSwitchedBuf || move_res & kMarkChangedCursor)
&& (fdo_flags & FDO_MARK)
&& old_KeyTyped) {
foldOpenCursor();
}
}
/// Handle CTRL-O, CTRL-I, "g;", "g,", and "CTRL-Tab" commands.
/// Movement in the jumplist and changelist.
static void nv_pcmark(cmdarg_T *cap)
{
fmark_T *fm = NULL;
MarkMove flags = jop_flags & JOP_VIEW ? kMarkSetView : 0; // flags for moving to the mark
MarkMoveRes move_res = 0; // Result from moving to the mark
const bool old_KeyTyped = KeyTyped; // getting file may reset it.
if (checkclearopq(cap->oap)) {
return;
}
if (cap->cmdchar == TAB && mod_mask == MOD_MASK_CTRL) {
if (!goto_tabpage_lastused()) {
clearopbeep(cap->oap);
}
return;
}
if (cap->cmdchar == 'g') {
fm = get_changelist(curbuf, curwin, cap->count1);
} else {
fm = get_jumplist(curwin, cap->count1);
flags |= KMarkNoContext | kMarkJumpList;
}
// Changelist and jumplist have their own error messages. Therefore avoid
// calling nv_mark_move_to() when not found to avoid incorrect error
// messages.
if (fm != NULL) {
move_res = nv_mark_move_to(cap, flags, fm);
} else if (cap->cmdchar == 'g') {
if (curbuf->b_changelistlen == 0) {
emsg(_(e_changelist_is_empty));
} else if (cap->count1 < 0) {
emsg(_("E662: At start of changelist"));
} else {
emsg(_("E663: At end of changelist"));
}
} else {
clearopbeep(cap->oap);
}
if (cap->oap->op_type == OP_NOP
&& (move_res & kMarkSwitchedBuf || move_res & kMarkChangedLine)
&& (fdo_flags & FDO_MARK)
&& old_KeyTyped) {
foldOpenCursor();
}
}
/// Handle '"' command.
static void nv_regname(cmdarg_T *cap)
{
if (checkclearop(cap->oap)) {
return;
}
if (cap->nchar == '=') {
cap->nchar = get_expr_register();
}
if (cap->nchar != NUL && valid_yank_reg(cap->nchar, false)) {
cap->oap->regname = cap->nchar;
cap->opcount = cap->count0; // remember count before '"'
set_reg_var(cap->oap->regname);
} else {
clearopbeep(cap->oap);
}
}
/// Handle "v", "V" and "CTRL-V" commands.
/// Also for "gh", "gH" and "g^H" commands: Always start Select mode, cap->arg
/// is true.
/// Handle CTRL-Q just like CTRL-V.
static void nv_visual(cmdarg_T *cap)
{
if (cap->cmdchar == Ctrl_Q) {
cap->cmdchar = Ctrl_V;
}
// 'v', 'V' and CTRL-V can be used while an operator is pending to make it
// charwise, linewise, or blockwise.
if (cap->oap->op_type != OP_NOP) {
motion_force = cap->oap->motion_force = cap->cmdchar;
finish_op = false; // operator doesn't finish now but later
return;
}
VIsual_select = cap->arg;
if (VIsual_active) { // change Visual mode
if (VIsual_mode == cap->cmdchar) { // stop visual mode
end_visual_mode();
} else { // toggle char/block mode
// or char/line mode
VIsual_mode = cap->cmdchar;
showmode();
may_trigger_modechanged();
}
redraw_curbuf_later(UPD_INVERTED); // update the inversion
} else { // start Visual mode
if (cap->count0 > 0 && resel_VIsual_mode != NUL) {
// use previously selected part
VIsual = curwin->w_cursor;
VIsual_active = true;
VIsual_reselect = true;
if (!cap->arg) {
// start Select mode when 'selectmode' contains "cmd"
may_start_select('c');
}
setmouse();
if (p_smd && msg_silent == 0) {
redraw_cmdline = true; // show visual mode later
}
// For V and ^V, we multiply the number of lines even if there
// was only one -- webb
if (resel_VIsual_mode != 'v' || resel_VIsual_line_count > 1) {
curwin->w_cursor.lnum += resel_VIsual_line_count * cap->count0 - 1;
check_cursor(curwin);
}
VIsual_mode = resel_VIsual_mode;
if (VIsual_mode == 'v') {
if (resel_VIsual_line_count <= 1) {
update_curswant_force();
assert(cap->count0 >= INT_MIN && cap->count0 <= INT_MAX);
curwin->w_curswant += resel_VIsual_vcol * cap->count0;
if (*p_sel != 'e') {
curwin->w_curswant--;
}
} else {
curwin->w_curswant = resel_VIsual_vcol;
}
coladvance(curwin, curwin->w_curswant);
}
if (resel_VIsual_vcol == MAXCOL) {
curwin->w_curswant = MAXCOL;
coladvance(curwin, MAXCOL);
} else if (VIsual_mode == Ctrl_V) {
// Update curswant on the original line, that is where "col" is valid.
linenr_T lnum = curwin->w_cursor.lnum;
curwin->w_cursor.lnum = VIsual.lnum;
update_curswant_force();
assert(cap->count0 >= INT_MIN && cap->count0 <= INT_MAX);
curwin->w_curswant += resel_VIsual_vcol * cap->count0 - 1;
curwin->w_cursor.lnum = lnum;
coladvance(curwin, curwin->w_curswant);
} else {
curwin->w_set_curswant = true;
}
redraw_curbuf_later(UPD_INVERTED); // show the inversion
} else {
if (!cap->arg) {
// start Select mode when 'selectmode' contains "cmd"
may_start_select('c');
}
n_start_visual_mode(cap->cmdchar);
if (VIsual_mode != 'V' && *p_sel == 'e') {
cap->count1++; // include one more char
}
if (cap->count0 > 0 && --cap->count1 > 0) {
// With a count select that many characters or lines.
if (VIsual_mode == 'v' || VIsual_mode == Ctrl_V) {
nv_right(cap);
} else if (VIsual_mode == 'V') {
nv_down(cap);
}
}
}
}
}
/// Start selection for Shift-movement keys.
void start_selection(void)
{
// if 'selectmode' contains "key", start Select mode
may_start_select('k');
n_start_visual_mode('v');
}
/// Start Select mode, if "c" is in 'selectmode' and not in a mapping or menu.
/// When "c" is 'o' (checking for "mouse") then also when mapped.
void may_start_select(int c)
{
VIsual_select = (c == 'o' || (stuff_empty() && typebuf_typed()))
&& vim_strchr(p_slm, c) != NULL;
}
/// Start Visual mode "c".
/// Should set VIsual_select before calling this.
static void n_start_visual_mode(int c)
{
VIsual_mode = c;
VIsual_active = true;
VIsual_reselect = true;
// Corner case: the 0 position in a tab may change when going into
// virtualedit. Recalculate curwin->w_cursor to avoid bad highlighting.
//
if (c == Ctrl_V && (get_ve_flags(curwin) & VE_BLOCK) && gchar_cursor() == TAB) {
validate_virtcol(curwin);
coladvance(curwin, curwin->w_virtcol);
}
VIsual = curwin->w_cursor;
foldAdjustVisual();
may_trigger_modechanged();
setmouse();
// Check for redraw after changing the state.
conceal_check_cursor_line();
if (p_smd && msg_silent == 0) {
redraw_cmdline = true; // show visual mode later
}
// Only need to redraw this line, unless still need to redraw an old
// Visual area (when 'lazyredraw' is set).
if (curwin->w_redr_type < UPD_INVERTED) {
curwin->w_old_cursor_lnum = curwin->w_cursor.lnum;
curwin->w_old_visual_lnum = curwin->w_cursor.lnum;
}
redraw_curbuf_later(UPD_VALID);
}
/// CTRL-W: Window commands
static void nv_window(cmdarg_T *cap)
{
if (cap->nchar == ':') {
// "CTRL-W :" is the same as typing ":"; useful in a terminal window
cap->cmdchar = ':';
cap->nchar = NUL;
nv_colon(cap);
} else if (!checkclearop(cap->oap)) {
do_window(cap->nchar, cap->count0, NUL); // everything is in window.c
}
}
/// CTRL-Z: Suspend
static void nv_suspend(cmdarg_T *cap)
{
clearop(cap->oap);
if (VIsual_active) {
end_visual_mode(); // stop Visual mode
}
do_cmdline_cmd("st");
}
/// "gv": Reselect the previous Visual area. If Visual already active,
/// exchange previous and current Visual area.
static void nv_gv_cmd(cmdarg_T *cap)
{
if (checkclearop(cap->oap)) {
return;
}
if (curbuf->b_visual.vi_start.lnum == 0
|| curbuf->b_visual.vi_start.lnum > curbuf->b_ml.ml_line_count
|| curbuf->b_visual.vi_end.lnum == 0) {
beep_flush();
return;
}
pos_T tpos;
// set w_cursor to the start of the Visual area, tpos to the end
if (VIsual_active) {
int i = VIsual_mode;
VIsual_mode = curbuf->b_visual.vi_mode;
curbuf->b_visual.vi_mode = i;
curbuf->b_visual_mode_eval = i;
i = curwin->w_curswant;
curwin->w_curswant = curbuf->b_visual.vi_curswant;
curbuf->b_visual.vi_curswant = i;
tpos = curbuf->b_visual.vi_end;
curbuf->b_visual.vi_end = curwin->w_cursor;
curwin->w_cursor = curbuf->b_visual.vi_start;
curbuf->b_visual.vi_start = VIsual;
} else {
VIsual_mode = curbuf->b_visual.vi_mode;
curwin->w_curswant = curbuf->b_visual.vi_curswant;
tpos = curbuf->b_visual.vi_end;
curwin->w_cursor = curbuf->b_visual.vi_start;
}
VIsual_active = true;
VIsual_reselect = true;
// Set Visual to the start and w_cursor to the end of the Visual
// area. Make sure they are on an existing character.
check_cursor(curwin);
VIsual = curwin->w_cursor;
curwin->w_cursor = tpos;
check_cursor(curwin);
update_topline(curwin);
// When called from normal "g" command: start Select mode when
// 'selectmode' contains "cmd". When called for K_SELECT, always
// start Select mode.
if (cap->arg) {
VIsual_select = true;
VIsual_select_reg = 0;
} else {
may_start_select('c');
}
setmouse();
redraw_curbuf_later(UPD_INVERTED);
showmode();
}
/// "g0", "g^" : Like "0" and "^" but for screen lines.
/// "gm": middle of "g0" and "g$".
void nv_g_home_m_cmd(cmdarg_T *cap)
{
int i;
const bool flag = cap->nchar == '^';
cap->oap->motion_type = kMTCharWise;
cap->oap->inclusive = false;
if (curwin->w_p_wrap && curwin->w_width_inner != 0) {
int width1 = curwin->w_width_inner - win_col_off(curwin);
int width2 = width1 + win_col_off2(curwin);
validate_virtcol(curwin);
i = 0;
if (curwin->w_virtcol >= (colnr_T)width1 && width2 > 0) {
i = (curwin->w_virtcol - width1) / width2 * width2 + width1;
}
// When ending up below 'smoothscroll' marker, move just beyond it so
// that skipcol is not adjusted later.
if (curwin->w_skipcol > 0 && curwin->w_cursor.lnum == curwin->w_topline) {
int overlap = sms_marker_overlap(curwin, -1);
if (overlap > 0 && i == curwin->w_skipcol) {
i += overlap;
}
}
} else {
i = curwin->w_leftcol;
}
// Go to the middle of the screen line. When 'number' or
// 'relativenumber' is on and lines are wrapping the middle can be more
// to the left.
if (cap->nchar == 'm') {
i += (curwin->w_width_inner - win_col_off(curwin)
+ ((curwin->w_p_wrap && i > 0) ? win_col_off2(curwin) : 0)) / 2;
}
coladvance(curwin, (colnr_T)i);
if (flag) {
do {
i = gchar_cursor();
} while (ascii_iswhite(i) && oneright() == OK);
curwin->w_valid &= ~VALID_WCOL;
}
curwin->w_set_curswant = true;
adjust_skipcol();
}
/// "g_": to the last non-blank character in the line or <count> lines downward.
static void nv_g_underscore_cmd(cmdarg_T *cap)
{
cap->oap->motion_type = kMTCharWise;
cap->oap->inclusive = true;
curwin->w_curswant = MAXCOL;
if (cursor_down(cap->count1 - 1, cap->oap->op_type == OP_NOP) == false) {
clearopbeep(cap->oap);
return;
}
char *ptr = get_cursor_line_ptr();
// In Visual mode we may end up after the line.
if (curwin->w_cursor.col > 0 && ptr[curwin->w_cursor.col] == NUL) {
curwin->w_cursor.col--;
}
// Decrease the cursor column until it's on a non-blank.
while (curwin->w_cursor.col > 0 && ascii_iswhite(ptr[curwin->w_cursor.col])) {
curwin->w_cursor.col--;
}
curwin->w_set_curswant = true;
adjust_for_sel(cap);
}
/// "g$" : Like "$" but for screen lines.
static void nv_g_dollar_cmd(cmdarg_T *cap)
{
oparg_T *oap = cap->oap;
int i;
int col_off = win_col_off(curwin);
const bool flag = cap->nchar == K_END || cap->nchar == K_KEND;
oap->motion_type = kMTCharWise;
oap->inclusive = true;
if (curwin->w_p_wrap && curwin->w_width_inner != 0) {
curwin->w_curswant = MAXCOL; // so we stay at the end
if (cap->count1 == 1) {
int width1 = curwin->w_width_inner - col_off;
int width2 = width1 + win_col_off2(curwin);
validate_virtcol(curwin);
i = width1 - 1;
if (curwin->w_virtcol >= (colnr_T)width1) {
i += ((curwin->w_virtcol - width1) / width2 + 1) * width2;
}
coladvance(curwin, (colnr_T)i);
// Make sure we stick in this column.
update_curswant_force();
if (curwin->w_cursor.col > 0 && curwin->w_p_wrap) {
// Check for landing on a character that got split at
// the end of the line. We do not want to advance to
// the next screen line.
if (curwin->w_virtcol > (colnr_T)i) {
curwin->w_cursor.col--;
}
}
} else if (nv_screengo(oap, FORWARD, cap->count1 - 1) == false) {
clearopbeep(oap);
}
} else {
if (cap->count1 > 1) {
// if it fails, let the cursor still move to the last char
cursor_down(cap->count1 - 1, false);
}
i = curwin->w_leftcol + curwin->w_width_inner - col_off - 1;
coladvance(curwin, (colnr_T)i);
// if the character doesn't fit move one back
if (curwin->w_cursor.col > 0 && utf_ptr2cells(get_cursor_pos_ptr()) > 1) {
colnr_T vcol;
getvvcol(curwin, &curwin->w_cursor, NULL, NULL, &vcol);
if (vcol >= curwin->w_leftcol + curwin->w_width_inner - col_off) {
curwin->w_cursor.col--;
}
}
// Make sure we stick in this column.
update_curswant_force();
}
if (flag) {
do {
i = gchar_cursor();
} while (ascii_iswhite(i) && oneleft() == OK);
curwin->w_valid &= ~VALID_WCOL;
}
}
/// "gi": start Insert at the last position.
static void nv_gi_cmd(cmdarg_T *cap)
{
if (curbuf->b_last_insert.mark.lnum != 0) {
curwin->w_cursor = curbuf->b_last_insert.mark;
check_cursor_lnum(curwin);
int i = (int)get_cursor_line_len();
if (curwin->w_cursor.col > (colnr_T)i) {
if (virtual_active(curwin)) {
curwin->w_cursor.coladd += curwin->w_cursor.col - i;
}
curwin->w_cursor.col = i;
}
}
cap->cmdchar = 'i';
nv_edit(cap);
}
/// Commands starting with "g".
static void nv_g_cmd(cmdarg_T *cap)
{
oparg_T *oap = cap->oap;
int i;
switch (cap->nchar) {
// "g^A/g^X": Sequentially increment visually selected region.
case Ctrl_A:
case Ctrl_X:
if (VIsual_active) {
cap->arg = true;
cap->cmdchar = cap->nchar;
cap->nchar = NUL;
nv_addsub(cap);
} else {
clearopbeep(oap);
}
break;
// "gR": Enter virtual replace mode.
case 'R':
cap->arg = true;
nv_Replace(cap);
break;
case 'r':
nv_vreplace(cap);
break;
case '&':
do_cmdline_cmd("%s//~/&");
break;
// "gv": Reselect the previous Visual area. If Visual already active,
// exchange previous and current Visual area.
case 'v':
nv_gv_cmd(cap);
break;
// "gV": Don't reselect the previous Visual area after a Select mode mapping of menu.
case 'V':
VIsual_reselect = false;
break;
// "gh": start Select mode.
// "gH": start Select line mode.
// "g^H": start Select block mode.
case K_BS:
cap->nchar = Ctrl_H;
FALLTHROUGH;
case 'h':
case 'H':
case Ctrl_H:
cap->cmdchar = cap->nchar + ('v' - 'h');
cap->arg = true;
nv_visual(cap);
break;
// "gn", "gN" visually select next/previous search match
// "gn" selects next match
// "gN" selects previous match
case 'N':
case 'n':
if (!current_search(cap->count1, cap->nchar == 'n')) {
clearopbeep(oap);
}
break;
// "gj" and "gk" two new funny movement keys -- up and down
// movement based on *screen* line rather than *file* line.
case 'j':
case K_DOWN:
// with 'nowrap' it works just like the normal "j" command.
if (!curwin->w_p_wrap) {
oap->motion_type = kMTLineWise;
i = cursor_down(cap->count1, oap->op_type == OP_NOP);
} else {
i = nv_screengo(oap, FORWARD, cap->count1);
}
if (!i) {
clearopbeep(oap);
}
break;
case 'k':
case K_UP:
// with 'nowrap' it works just like the normal "k" command.
if (!curwin->w_p_wrap) {
oap->motion_type = kMTLineWise;
i = cursor_up(cap->count1, oap->op_type == OP_NOP);
} else {
i = nv_screengo(oap, BACKWARD, cap->count1);
}
if (!i) {
clearopbeep(oap);
}
break;
// "gJ": join two lines without inserting a space.
case 'J':
nv_join(cap);
break;
// "g0", "g^" : Like "0" and "^" but for screen lines.
// "gm": middle of "g0" and "g$".
case '^':
case '0':
case 'm':
case K_HOME:
case K_KHOME:
nv_g_home_m_cmd(cap);
break;
case 'M':
oap->motion_type = kMTCharWise;
oap->inclusive = false;
i = linetabsize(curwin, curwin->w_cursor.lnum);
if (cap->count0 > 0 && cap->count0 <= 100) {
coladvance(curwin, (colnr_T)(i * cap->count0 / 100));
} else {
coladvance(curwin, (colnr_T)(i / 2));
}
curwin->w_set_curswant = true;
break;
// "g_": to the last non-blank character in the line or <count> lines downward.
case '_':
nv_g_underscore_cmd(cap);
break;
// "g$" : Like "$" but for screen lines.
case '$':
case K_END:
case K_KEND:
nv_g_dollar_cmd(cap);
break;
// "g*" and "g#", like "*" and "#" but without using "\<" and "\>"
case '*':
case '#':
#if POUND != '#'
case POUND: // pound sign (sometimes equal to '#')
#endif
case Ctrl_RSB: // :tag or :tselect for current identifier
case ']': // :tselect for current identifier
nv_ident(cap);
break;
// ge and gE: go back to end of word
case 'e':
case 'E':
oap->motion_type = kMTCharWise;
curwin->w_set_curswant = true;
oap->inclusive = true;
if (bckend_word(cap->count1, cap->nchar == 'E', false) == false) {
clearopbeep(oap);
}
break;
// "g CTRL-G": display info about cursor position
case Ctrl_G:
cursor_pos_info(NULL);
break;
// "gi": start Insert at the last position.
case 'i':
nv_gi_cmd(cap);
break;
// "gI": Start insert in column 1.
case 'I':
beginline(0);
if (!checkclearopq(oap)) {
invoke_edit(cap, false, 'g', false);
}
break;
// "gf": goto file, edit file under cursor
// "]f" and "[f": can also be used.
case 'f':
case 'F':
nv_gotofile(cap);
break;
// "g'm" and "g`m": jump to mark without setting pcmark
case '\'':
cap->arg = true;
FALLTHROUGH;
case '`':
nv_gomark(cap);
break;
// "gs": Goto sleep.
case 's':
do_sleep(cap->count1 * 1000);
break;
// "ga": Display the ascii value of the character under the
// cursor. It is displayed in decimal, hex, and octal. -- webb
case 'a':
do_ascii(NULL);
break;
// "g8": Display the bytes used for the UTF-8 character under the
// cursor. It is displayed in hex.
// "8g8" finds illegal byte sequence.
case '8':
if (cap->count0 == 8) {
utf_find_illegal();
} else {
show_utf8();
}
break;
// "g<": show scrollback text
case '<':
show_sb_text();
break;
// "gg": Goto the first line in file. With a count it goes to
// that line number like for "G". -- webb
case 'g':
cap->arg = false;
nv_goto(cap);
break;
// Two-character operators:
// "gq" Format text
// "gw" Format text and keep cursor position
// "g~" Toggle the case of the text.
// "gu" Change text to lower case.
// "gU" Change text to upper case.
// "g?" rot13 encoding
// "g@" call 'operatorfunc'
case 'q':
case 'w':
oap->cursor_start = curwin->w_cursor;
FALLTHROUGH;
case '~':
case 'u':
case 'U':
case '?':
case '@':
nv_operator(cap);
break;
// "gd": Find first occurrence of pattern under the cursor in the current function
// "gD": idem, but in the current file.
case 'd':
case 'D':
nv_gd(oap, cap->nchar, cap->count0);
break;
// g<*Mouse> : <C-*mouse>
case K_MIDDLEMOUSE:
case K_MIDDLEDRAG:
case K_MIDDLERELEASE:
case K_LEFTMOUSE:
case K_LEFTDRAG:
case K_LEFTRELEASE:
case K_MOUSEMOVE:
case K_RIGHTMOUSE:
case K_RIGHTDRAG:
case K_RIGHTRELEASE:
case K_X1MOUSE:
case K_X1DRAG:
case K_X1RELEASE:
case K_X2MOUSE:
case K_X2DRAG:
case K_X2RELEASE:
mod_mask = MOD_MASK_CTRL;
do_mouse(oap, cap->nchar, BACKWARD, cap->count1, 0);
break;
case K_IGNORE:
break;
// "gP" and "gp": same as "P" and "p" but leave cursor just after new text
case 'p':
case 'P':
nv_put(cap);
break;
// "go": goto byte count from start of buffer
case 'o':
oap->inclusive = false;
goto_byte(cap->count0);
break;
// "gQ": improved Ex mode
case 'Q':
if (!check_text_locked(cap->oap) && !checkclearopq(oap)) {
do_exmode();
}
break;
case ',':
nv_pcmark(cap);
break;
case ';':
cap->count1 = -cap->count1;
nv_pcmark(cap);
break;
case 't':
if (!checkclearop(oap)) {
goto_tabpage(cap->count0);
}
break;
case 'T':
if (!checkclearop(oap)) {
goto_tabpage(-cap->count1);
}
break;
case TAB:
if (!checkclearop(oap) && !goto_tabpage_lastused()) {
clearopbeep(oap);
}
break;
case '+':
case '-': // "g+" and "g-": undo or redo along the timeline
if (!checkclearopq(oap)) {
undo_time(cap->nchar == '-' ? -cap->count1 : cap->count1,
false, false, false);
}
break;
default:
clearopbeep(oap);
break;
}
}
/// Handle "o" and "O" commands.
static void n_opencmd(cmdarg_T *cap)
{
if (checkclearopq(cap->oap)) {
return;
}
if (cap->cmdchar == 'O') {
// Open above the first line of a folded sequence of lines
hasFolding(curwin, curwin->w_cursor.lnum,
&curwin->w_cursor.lnum, NULL);
} else {
// Open below the last line of a folded sequence of lines
hasFolding(curwin, curwin->w_cursor.lnum,
NULL, &curwin->w_cursor.lnum);
}
// trigger TextChangedI for the 'o/O' command
curbuf->b_last_changedtick_i = buf_get_changedtick(curbuf);
if (u_save(curwin->w_cursor.lnum - (cap->cmdchar == 'O' ? 1 : 0),
curwin->w_cursor.lnum + (cap->cmdchar == 'o' ? 1 : 0))
&& open_line(cap->cmdchar == 'O' ? BACKWARD : FORWARD,
has_format_option(FO_OPEN_COMS) ? OPENLINE_DO_COM : 0,
0, NULL)) {
if (win_cursorline_standout(curwin)) {
// force redraw of cursorline
curwin->w_valid &= ~VALID_CROW;
}
invoke_edit(cap, false, cap->cmdchar, true);
}
}
/// "." command: redo last change.
static void nv_dot(cmdarg_T *cap)
{
if (checkclearopq(cap->oap)) {
return;
}
// If "restart_edit" is true, the last but one command is repeated
// instead of the last command (inserting text). This is used for
// CTRL-O <.> in insert mode.
if (start_redo(cap->count0, restart_edit != 0 && !arrow_used) == false) {
clearopbeep(cap->oap);
}
}
/// CTRL-R: undo undo or specify register in select mode
static void nv_redo_or_register(cmdarg_T *cap)
{
if (VIsual_select && VIsual_active) {
// Get register name
no_mapping++;
int reg = plain_vgetc();
LANGMAP_ADJUST(reg, true);
no_mapping--;
if (reg == '"') {
// the unnamed register is 0
reg = 0;
}
VIsual_select_reg = valid_yank_reg(reg, true) ? reg : 0;
return;
}
if (checkclearopq(cap->oap)) {
return;
}
u_redo(cap->count1);
curwin->w_set_curswant = true;
}
/// Handle "U" command.
static void nv_Undo(cmdarg_T *cap)
{
// In Visual mode and typing "gUU" triggers an operator
if (cap->oap->op_type == OP_UPPER || VIsual_active) {
// translate "gUU" to "gUgU"
cap->cmdchar = 'g';
cap->nchar = 'U';
nv_operator(cap);
return;
}
if (checkclearopq(cap->oap)) {
return;
}
u_undoline();
curwin->w_set_curswant = true;
}
/// '~' command: If tilde is not an operator and Visual is off: swap case of a
/// single character.
static void nv_tilde(cmdarg_T *cap)
{
if (!p_to && !VIsual_active && cap->oap->op_type != OP_TILDE) {
if (bt_prompt(curbuf) && !prompt_curpos_editable()) {
clearopbeep(cap->oap);
return;
}
n_swapchar(cap);
} else {
nv_operator(cap);
}
}
/// Handle an operator command.
/// The actual work is done by do_pending_operator().
static void nv_operator(cmdarg_T *cap)
{
int op_type = get_op_type(cap->cmdchar, cap->nchar);
if (bt_prompt(curbuf) && op_is_change(op_type)
&& !prompt_curpos_editable()) {
clearopbeep(cap->oap);
return;
}
if (op_type == cap->oap->op_type) { // double operator works on lines
nv_lineop(cap);
} else if (!checkclearop(cap->oap)) {
cap->oap->start = curwin->w_cursor;
cap->oap->op_type = op_type;
set_op_var(op_type);
}
}
/// Set v:operator to the characters for "optype".
static void set_op_var(int optype)
{
if (optype == OP_NOP) {
set_vim_var_string(VV_OP, NULL, 0);
} else {
char opchars[3];
int opchar0 = get_op_char(optype);
assert(opchar0 >= 0 && opchar0 <= UCHAR_MAX);
opchars[0] = (char)opchar0;
int opchar1 = get_extra_op_char(optype);
assert(opchar1 >= 0 && opchar1 <= UCHAR_MAX);
opchars[1] = (char)opchar1;
opchars[2] = NUL;
set_vim_var_string(VV_OP, opchars, -1);
}
}
/// Handle linewise operator "dd", "yy", etc.
///
/// "_" is is a strange motion command that helps make operators more logical.
/// It is actually implemented, but not documented in the real Vi. This motion
/// command actually refers to "the current line". Commands like "dd" and "yy"
/// are really an alternate form of "d_" and "y_". It does accept a count, so
/// "d3_" works to delete 3 lines.
static void nv_lineop(cmdarg_T *cap)
{
cap->oap->motion_type = kMTLineWise;
if (cursor_down(cap->count1 - 1, cap->oap->op_type == OP_NOP) == false) {
clearopbeep(cap->oap);
} else if ((cap->oap->op_type == OP_DELETE
// only with linewise motions
&& cap->oap->motion_force != 'v'
&& cap->oap->motion_force != Ctrl_V)
|| cap->oap->op_type == OP_LSHIFT
|| cap->oap->op_type == OP_RSHIFT) {
beginline(BL_SOL | BL_FIX);
} else if (cap->oap->op_type != OP_YANK) { // 'Y' does not move cursor
beginline(BL_WHITE | BL_FIX);
}
}
/// <Home> command.
static void nv_home(cmdarg_T *cap)
{
// CTRL-HOME is like "gg"
if (mod_mask & MOD_MASK_CTRL) {
nv_goto(cap);
} else {
cap->count0 = 1;
nv_pipe(cap);
}
ins_at_eol = false; // Don't move cursor past eol (only necessary in a
// one-character line).
}
/// "|" command.
static void nv_pipe(cmdarg_T *cap)
{
cap->oap->motion_type = kMTCharWise;
cap->oap->inclusive = false;
beginline(0);
if (cap->count0 > 0) {
coladvance(curwin, (colnr_T)(cap->count0 - 1));
curwin->w_curswant = (colnr_T)(cap->count0 - 1);
} else {
curwin->w_curswant = 0;
}
// keep curswant at the column where we wanted to go, not where
// we ended; differs if line is too short
curwin->w_set_curswant = false;
}
/// Handle back-word command "b" and "B".
/// cap->arg is 1 for "B"
static void nv_bck_word(cmdarg_T *cap)
{
cap->oap->motion_type = kMTCharWise;
cap->oap->inclusive = false;
curwin->w_set_curswant = true;
if (bck_word(cap->count1, cap->arg, false) == false) {
clearopbeep(cap->oap);
} else if ((fdo_flags & FDO_HOR) && KeyTyped && cap->oap->op_type == OP_NOP) {
foldOpenCursor();
}
}
/// Handle word motion commands "e", "E", "w" and "W".
/// cap->arg is true for "E" and "W".
static void nv_wordcmd(cmdarg_T *cap)
{
int n;
bool word_end;
bool flag = false;
pos_T startpos = curwin->w_cursor;
// Set inclusive for the "E" and "e" command.
if (cap->cmdchar == 'e' || cap->cmdchar == 'E') {
word_end = true;
} else {
word_end = false;
}
cap->oap->inclusive = word_end;
// "cw" and "cW" are a special case.
if (!word_end && cap->oap->op_type == OP_CHANGE) {
n = gchar_cursor();
if (n != NUL && !ascii_iswhite(n)) {
// This is a little strange. To match what the real Vi does, we
// effectively map "cw" to "ce", and "cW" to "cE", provided that we are
// not on a space or a TAB. This seems impolite at first, but it's
// really more what we mean when we say "cw".
//
// Another strangeness: When standing on the end of a word "ce" will
// change until the end of the next word, but "cw" will change only one
// character! This is done by setting "flag".
if (vim_strchr(p_cpo, CPO_CHANGEW) != NULL) {
cap->oap->inclusive = true;
word_end = true;
}
flag = true;
}
}
cap->oap->motion_type = kMTCharWise;
curwin->w_set_curswant = true;
if (word_end) {
n = end_word(cap->count1, cap->arg, flag, false);
} else {
n = fwd_word(cap->count1, cap->arg, cap->oap->op_type != OP_NOP);
}
// Don't leave the cursor on the NUL past the end of line. Unless we
// didn't move it forward.
if (lt(startpos, curwin->w_cursor)) {
adjust_cursor(cap->oap);
}
if (n == false && cap->oap->op_type == OP_NOP) {
clearopbeep(cap->oap);
} else {
adjust_for_sel(cap);
if ((fdo_flags & FDO_HOR) && KeyTyped && cap->oap->op_type == OP_NOP) {
foldOpenCursor();
}
}
}
/// Used after a movement command: If the cursor ends up on the NUL after the
/// end of the line, may move it back to the last character and make the motion
/// inclusive.
static void adjust_cursor(oparg_T *oap)
{
// The cursor cannot remain on the NUL when:
// - the column is > 0
// - not in Visual mode or 'selection' is "o"
// - 'virtualedit' is not "all" and not "onemore".
if (curwin->w_cursor.col > 0 && gchar_cursor() == NUL
&& (!VIsual_active || *p_sel == 'o')
&& !virtual_active(curwin)
&& (get_ve_flags(curwin) & VE_ONEMORE) == 0) {
curwin->w_cursor.col--;
// prevent cursor from moving on the trail byte
mb_adjust_cursor();
oap->inclusive = true;
}
}
/// "0" and "^" commands.
/// cap->arg is the argument for beginline().
static void nv_beginline(cmdarg_T *cap)
{
cap->oap->motion_type = kMTCharWise;
cap->oap->inclusive = false;
beginline(cap->arg);
if ((fdo_flags & FDO_HOR) && KeyTyped && cap->oap->op_type == OP_NOP) {
foldOpenCursor();
}
ins_at_eol = false; // Don't move cursor past eol (only necessary in a
// one-character line).
}
/// In exclusive Visual mode, may include the last character.
static void adjust_for_sel(cmdarg_T *cap)
{
if (VIsual_active && cap->oap->inclusive && *p_sel == 'e'
&& gchar_cursor() != NUL && lt(VIsual, curwin->w_cursor)) {
inc_cursor();
cap->oap->inclusive = false;
}
}
/// Exclude last character at end of Visual area for 'selection' == "exclusive".
/// Should check VIsual_mode before calling this.
///
/// @return true when backed up to the previous line.
bool unadjust_for_sel(void)
{
if (*p_sel == 'e' && !equalpos(VIsual, curwin->w_cursor)) {
return unadjust_for_sel_inner(lt(VIsual, curwin->w_cursor)
? &curwin->w_cursor : &VIsual);
}
return false;
}
/// Move position "*pp" back one character for 'selection' == "exclusive".
///
/// @return true when backed up to the previous line.
bool unadjust_for_sel_inner(pos_T *pp)
{
colnr_T cs, ce;
if (pp->coladd > 0) {
pp->coladd--;
} else if (pp->col > 0) {
pp->col--;
mark_mb_adjustpos(curbuf, pp);
if (virtual_active(curwin)) {
getvcol(curwin, pp, &cs, NULL, &ce);
pp->coladd = ce - cs;
}
} else if (pp->lnum > 1) {
pp->lnum--;
pp->col = ml_get_len(pp->lnum);
return true;
}
return false;
}
/// SELECT key in Normal or Visual mode: end of Select mode mapping.
static void nv_select(cmdarg_T *cap)
{
if (VIsual_active) {
VIsual_select = true;
VIsual_select_reg = 0;
} else if (VIsual_reselect) {
cap->nchar = 'v'; // fake "gv" command
cap->arg = true;
nv_g_cmd(cap);
}
}
/// "G", "gg", CTRL-END, CTRL-HOME.
/// cap->arg is true for "G".
static void nv_goto(cmdarg_T *cap)
{
linenr_T lnum;
if (cap->arg) {
lnum = curbuf->b_ml.ml_line_count;
} else {
lnum = 1;
}
cap->oap->motion_type = kMTLineWise;
setpcmark();
// When a count is given, use it instead of the default lnum
if (cap->count0 != 0) {
lnum = cap->count0;
}
lnum = MIN(MAX(lnum, 1), curbuf->b_ml.ml_line_count);
curwin->w_cursor.lnum = lnum;
beginline(BL_SOL | BL_FIX);
if ((fdo_flags & FDO_JUMP) && KeyTyped && cap->oap->op_type == OP_NOP) {
foldOpenCursor();
}
}
/// CTRL-\ in Normal mode.
static void nv_normal(cmdarg_T *cap)
{
if (cap->nchar == Ctrl_N || cap->nchar == Ctrl_G) {
clearop(cap->oap);
if (restart_edit != 0 && mode_displayed) {
clear_cmdline = true; // unshow mode later
}
restart_edit = 0;
if (cmdwin_type != 0) {
cmdwin_result = Ctrl_C;
}
if (VIsual_active) {
end_visual_mode(); // stop Visual
redraw_curbuf_later(UPD_INVERTED);
}
} else {
clearopbeep(cap->oap);
}
}
/// ESC in Normal mode: beep, but don't flush buffers.
/// Don't even beep if we are canceling a command.
static void nv_esc(cmdarg_T *cap)
{
bool no_reason = (cap->oap->op_type == OP_NOP
&& cap->opcount == 0
&& cap->count0 == 0
&& cap->oap->regname == 0);
if (cap->arg) { // true for CTRL-C
if (restart_edit == 0 && cmdwin_type == 0 && !VIsual_active && no_reason) {
if (anyBufIsChanged()) {
msg(_("Type :qa! and press <Enter> to abandon all changes"
" and exit Nvim"), 0);
} else {
msg(_("Type :qa and press <Enter> to exit Nvim"), 0);
}
}
if (restart_edit != 0) {
redraw_mode = true; // remove "-- (insert) --"
}
restart_edit = 0;
if (cmdwin_type != 0) {
cmdwin_result = K_IGNORE;
got_int = false; // don't stop executing autocommands et al.
return;
}
} else if (cmdwin_type != 0 && ex_normal_busy && typebuf_was_empty) {
// When :normal runs out of characters while in the command line window
// vgetorpeek() will repeatedly return ESC. Exit the cmdline window to
// break the loop.
cmdwin_result = K_IGNORE;
return;
}
if (VIsual_active) {
end_visual_mode(); // stop Visual
check_cursor_col(curwin); // make sure cursor is not beyond EOL
curwin->w_set_curswant = true;
redraw_curbuf_later(UPD_INVERTED);
} else if (no_reason) {
vim_beep(BO_ESC);
}
clearop(cap->oap);
}
/// Move the cursor for the "A" command.
void set_cursor_for_append_to_line(void)
{
curwin->w_set_curswant = true;
if (get_ve_flags(curwin) == VE_ALL) {
const int save_State = State;
// Pretend Insert mode here to allow the cursor on the
// character past the end of the line
State = MODE_INSERT;
coladvance(curwin, MAXCOL);
State = save_State;
} else {
curwin->w_cursor.col += (colnr_T)strlen(get_cursor_pos_ptr());
}
}
/// Handle "A", "a", "I", "i" and <Insert> commands.
static void nv_edit(cmdarg_T *cap)
{
// <Insert> is equal to "i"
if (cap->cmdchar == K_INS || cap->cmdchar == K_KINS) {
cap->cmdchar = 'i';
}
// in Visual mode "A" and "I" are an operator
if (VIsual_active && (cap->cmdchar == 'A' || cap->cmdchar == 'I')) {
v_visop(cap);
// in Visual mode and after an operator "a" and "i" are for text objects
} else if ((cap->cmdchar == 'a' || cap->cmdchar == 'i')
&& (cap->oap->op_type != OP_NOP || VIsual_active)) {
nv_object(cap);
} else if (!curbuf->b_p_ma && !curbuf->terminal) {
emsg(_(e_modifiable));
clearop(cap->oap);
} else if (!checkclearopq(cap->oap)) {
switch (cap->cmdchar) {
case 'A': // "A"ppend after the line
set_cursor_for_append_to_line();
break;
case 'I': // "I"nsert before the first non-blank
beginline(BL_WHITE);
break;
case 'a': // "a"ppend is like "i"nsert on the next character.
// increment coladd when in virtual space, increment the
// column otherwise, also to append after an unprintable char
if (virtual_active(curwin)
&& (curwin->w_cursor.coladd > 0
|| *get_cursor_pos_ptr() == NUL
|| *get_cursor_pos_ptr() == TAB)) {
curwin->w_cursor.coladd++;
} else if (*get_cursor_pos_ptr() != NUL) {
inc_cursor();
}
break;
}
if (curwin->w_cursor.coladd && cap->cmdchar != 'A') {
int save_State = State;
// Pretend Insert mode here to allow the cursor on the
// character past the end of the line
State = MODE_INSERT;
coladvance(curwin, getviscol());
State = save_State;
}
invoke_edit(cap, false, cap->cmdchar, false);
}
}
/// Invoke edit() and take care of "restart_edit" and the return value.
///
/// @param repl "r" or "gr" command
static void invoke_edit(cmdarg_T *cap, int repl, int cmd, int startln)
{
int restart_edit_save = 0;
// Complicated: When the user types "a<C-O>a" we don't want to do Insert
// mode recursively. But when doing "a<C-O>." or "a<C-O>rx" we do allow
// it.
if (repl || !stuff_empty()) {
restart_edit_save = restart_edit;
} else {
restart_edit_save = 0;
}
// Always reset "restart_edit", this is not a restarted edit.
restart_edit = 0;
// Reset Changedtick_i, so that TextChangedI will only be triggered for stuff
// from insert mode, for 'o/O' this has already been done in n_opencmd
if (cap->cmdchar != 'O' && cap->cmdchar != 'o') {
curbuf->b_last_changedtick_i = buf_get_changedtick(curbuf);
}
if (edit(cmd, startln, cap->count1)) {
cap->retval |= CA_COMMAND_BUSY;
}
if (restart_edit == 0) {
restart_edit = restart_edit_save;
}
}
/// "a" or "i" while an operator is pending or in Visual mode: object motion.
static void nv_object(cmdarg_T *cap)
{
bool flag;
bool include;
if (cap->cmdchar == 'i') {
include = false; // "ix" = inner object: exclude white space
} else {
include = true; // "ax" = an object: include white space
}
// Make sure (), [], {} and <> are in 'matchpairs'
char *mps_save = curbuf->b_p_mps;
curbuf->b_p_mps = "(:),{:},[:],<:>";
switch (cap->nchar) {
case 'w': // "aw" = a word
flag = current_word(cap->oap, cap->count1, include, false);
break;
case 'W': // "aW" = a WORD
flag = current_word(cap->oap, cap->count1, include, true);
break;
case 'b': // "ab" = a braces block
case '(':
case ')':
flag = current_block(cap->oap, cap->count1, include, '(', ')');
break;
case 'B': // "aB" = a Brackets block
case '{':
case '}':
flag = current_block(cap->oap, cap->count1, include, '{', '}');
break;
case '[': // "a[" = a [] block
case ']':
flag = current_block(cap->oap, cap->count1, include, '[', ']');
break;
case '<': // "a<" = a <> block
case '>':
flag = current_block(cap->oap, cap->count1, include, '<', '>');
break;
case 't': // "at" = a tag block (xml and html)
// Do not adjust oap->end in do_pending_operator()
// otherwise there are different results for 'dit'
// (note leading whitespace in last line):
// 1) <b> 2) <b>
// foobar foobar
// </b> </b>
cap->retval |= CA_NO_ADJ_OP_END;
flag = current_tagblock(cap->oap, cap->count1, include);
break;
case 'p': // "ap" = a paragraph
flag = current_par(cap->oap, cap->count1, include, 'p');
break;
case 's': // "as" = a sentence
flag = current_sent(cap->oap, cap->count1, include);
break;
case '"': // "a"" = a double quoted string
case '\'': // "a'" = a single quoted string
case '`': // "a`" = a backtick quoted string
flag = current_quote(cap->oap, cap->count1, include,
cap->nchar);
break;
default:
flag = false;
break;
}
curbuf->b_p_mps = mps_save;
if (!flag) {
clearopbeep(cap->oap);
}
adjust_cursor_col();
curwin->w_set_curswant = true;
}
/// "q" command: Start/stop recording.
/// "q:", "q/", "q?": edit command-line in command-line window.
static void nv_record(cmdarg_T *cap)
{
if (cap->oap->op_type == OP_FORMAT) {
// "gqq" is the same as "gqgq": format line
cap->cmdchar = 'g';
cap->nchar = 'q';
nv_operator(cap);
return;
}
if (checkclearop(cap->oap)) {
return;
}
if (cap->nchar == ':' || cap->nchar == '/' || cap->nchar == '?') {
if (cmdwin_type != 0) {
emsg(_(e_cmdline_window_already_open));
return;
}
stuffcharReadbuff(cap->nchar);
stuffcharReadbuff(K_CMDWIN);
} else {
// (stop) recording into a named register, unless executing a
// register.
if (reg_executing == 0 && do_record(cap->nchar) == FAIL) {
clearopbeep(cap->oap);
}
}
}
/// Handle the "@r" command.
static void nv_at(cmdarg_T *cap)
{
if (checkclearop(cap->oap)) {
return;
}
if (cap->nchar == '=') {
if (get_expr_register() == NUL) {
return;
}
}
while (cap->count1-- && !got_int) {
if (do_execreg(cap->nchar, false, false, false) == false) {
clearopbeep(cap->oap);
break;
}
line_breakcheck();
}
}
/// Handle the CTRL-U and CTRL-D commands.
static void nv_halfpage(cmdarg_T *cap)
{
if (!checkclearop(cap->oap)) {
pagescroll(cap->cmdchar == Ctrl_D ? FORWARD : BACKWARD, cap->count0, true);
}
}
/// Handle "J" or "gJ" command.
static void nv_join(cmdarg_T *cap)
{
if (VIsual_active) { // join the visual lines
nv_operator(cap);
return;
}
if (checkclearop(cap->oap)) {
return;
}
cap->count0 = MAX(cap->count0, 2); // default for join is two lines!
if (curwin->w_cursor.lnum + cap->count0 - 1 >
curbuf->b_ml.ml_line_count) {
// can't join when on the last line
if (cap->count0 <= 2) {
clearopbeep(cap->oap);
return;
}
cap->count0 = curbuf->b_ml.ml_line_count - curwin->w_cursor.lnum + 1;
}
prep_redo(cap->oap->regname, cap->count0,
NUL, cap->cmdchar, NUL, NUL, cap->nchar);
do_join((size_t)cap->count0, cap->nchar == NUL, true, true, true);
}
/// "P", "gP", "p" and "gp" commands.
static void nv_put(cmdarg_T *cap)
{
nv_put_opt(cap, false);
}
/// "P", "gP", "p" and "gp" commands.
///
/// @param fix_indent true for "[p", "[P", "]p" and "]P".
static void nv_put_opt(cmdarg_T *cap, bool fix_indent)
{
yankreg_T *savereg = NULL;
bool empty = false;
bool was_visual = false;
int dir;
int flags = 0;
const int save_fen = curwin->w_p_fen;
if (cap->oap->op_type != OP_NOP) {
// "dp" is ":diffput"
if (cap->oap->op_type == OP_DELETE && cap->cmdchar == 'p') {
clearop(cap->oap);
assert(cap->opcount >= 0);
nv_diffgetput(true, (size_t)cap->opcount);
} else {
clearopbeep(cap->oap);
}
return;
}
if (bt_prompt(curbuf) && !prompt_curpos_editable()) {
clearopbeep(cap->oap);
return;
}
if (fix_indent) {
dir = (cap->cmdchar == ']' && cap->nchar == 'p')
? FORWARD : BACKWARD;
flags |= PUT_FIXINDENT;
} else {
dir = (cap->cmdchar == 'P'
|| ((cap->cmdchar == 'g' || cap->cmdchar == 'z')
&& cap->nchar == 'P')) ? BACKWARD : FORWARD;
}
prep_redo_cmd(cap);
if (cap->cmdchar == 'g') {
flags |= PUT_CURSEND;
} else if (cap->cmdchar == 'z') {
flags |= PUT_BLOCK_INNER;
}
if (VIsual_active) {
// Putting in Visual mode: The put text replaces the selected
// text. First delete the selected text, then put the new text.
// Need to save and restore the registers that the delete
// overwrites if the old contents is being put.
was_visual = true;
int regname = cap->oap->regname;
bool keep_registers = cap->cmdchar == 'P';
// '+' and '*' could be the same selection
bool clipoverwrite = (regname == '+' || regname == '*') && (cb_flags & CB_UNNAMEDMASK);
if (regname == 0 || regname == '"' || clipoverwrite
|| ascii_isdigit(regname) || regname == '-') {
// The delete might overwrite the register we want to put, save it first
savereg = copy_register(regname);
}
// Temporarily disable folding, as deleting a fold marker may cause
// the cursor to be included in a fold.
curwin->w_p_fen = false;
// To place the cursor correctly after a blockwise put, and to leave the
// text in the correct position when putting over a selection with
// 'virtualedit' and past the end of the line, we use the 'c' operator in
// do_put(), which requires the visual selection to still be active.
if (!VIsual_active || VIsual_mode == 'V' || regname != '.') {
// Now delete the selected text. Avoid messages here.
cap->cmdchar = 'd';
cap->nchar = NUL;
cap->oap->regname = keep_registers ? '_' : NUL;
msg_silent++;
nv_operator(cap);
do_pending_operator(cap, 0, false);
empty = (curbuf->b_ml.ml_flags & ML_EMPTY);
msg_silent--;
// delete PUT_LINE_BACKWARD;
cap->oap->regname = regname;
}
// When deleted a linewise Visual area, put the register as
// lines to avoid it joined with the next line. When deletion was
// charwise, split a line when putting lines.
if (VIsual_mode == 'V') {
flags |= PUT_LINE;
} else if (VIsual_mode == 'v') {
flags |= PUT_LINE_SPLIT;
}
if (VIsual_mode == Ctrl_V && dir == FORWARD) {
flags |= PUT_LINE_FORWARD;
}
dir = BACKWARD;
if ((VIsual_mode != 'V'
&& curwin->w_cursor.col < curbuf->b_op_start.col)
|| (VIsual_mode == 'V'
&& curwin->w_cursor.lnum < curbuf->b_op_start.lnum)) {
// cursor is at the end of the line or end of file, put
// forward.
dir = FORWARD;
}
// May have been reset in do_put().
VIsual_active = true;
}
do_put(cap->oap->regname, savereg, dir, cap->count1, flags);
// If a register was saved, free it
if (savereg != NULL) {
free_register(savereg);
xfree(savereg);
}
if (was_visual) {
if (save_fen) {
curwin->w_p_fen = true;
}
// What to reselect with "gv"? Selecting the just put text seems to
// be the most useful, since the original text was removed.
curbuf->b_visual.vi_start = curbuf->b_op_start;
curbuf->b_visual.vi_end = curbuf->b_op_end;
// need to adjust cursor position
if (*p_sel == 'e') {
inc(&curbuf->b_visual.vi_end);
}
}
// When all lines were selected and deleted do_put() leaves an empty
// line that needs to be deleted now.
if (empty && *ml_get(curbuf->b_ml.ml_line_count) == NUL) {
ml_delete(curbuf->b_ml.ml_line_count, true);
deleted_lines(curbuf->b_ml.ml_line_count + 1, 1);
// If the cursor was in that line, move it to the end of the last
// line.
if (curwin->w_cursor.lnum > curbuf->b_ml.ml_line_count) {
curwin->w_cursor.lnum = curbuf->b_ml.ml_line_count;
coladvance(curwin, MAXCOL);
}
}
auto_format(false, true);
}
/// "o" and "O" commands.
static void nv_open(cmdarg_T *cap)
{
// "do" is ":diffget"
if (cap->oap->op_type == OP_DELETE && cap->cmdchar == 'o') {
clearop(cap->oap);
assert(cap->opcount >= 0);
nv_diffgetput(false, (size_t)cap->opcount);
} else if (VIsual_active) {
// switch start and end of visual/
v_swap_corners(cap->cmdchar);
} else if (bt_prompt(curbuf)) {
clearopbeep(cap->oap);
} else {
n_opencmd(cap);
}
}
/// Handle an arbitrary event in normal mode
static void nv_event(cmdarg_T *cap)
{
// Garbage collection should have been executed before blocking for events in
// the `os_inchar` in `state_enter`, but we also disable it here in case the
// `os_inchar` branch was not executed (!multiqueue_empty(loop.events), which
// could have `may_garbage_collect` set to true in `normal_check`).
//
// That is because here we may run code that calls `os_inchar`
// later(`f_confirm` or `get_keystroke` for example), but in these cases it is
// not safe to perform garbage collection because there could be unreferenced
// lists or dicts being used.
may_garbage_collect = false;
bool may_restart = (restart_edit != 0 || restart_VIsual_select != 0);
state_handle_k_event();
finish_op = false;
if (may_restart) {
// Tricky: if restart_edit was set before the handler we are in ctrl-o mode,
// but if not, the event should be allowed to trigger :startinsert.
cap->retval |= CA_COMMAND_BUSY; // don't call edit() or restart Select now
}
}
void normal_cmd(oparg_T *oap, bool toplevel)
{
NormalState s;
normal_state_init(&s);
s.toplevel = toplevel;
s.oa = *oap;
normal_prepare(&s);
normal_execute(&s.state, safe_vgetc());
*oap = s.oa;
}