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gerrit.omnirom.org / android_external_vim / d2f49879990407b209f39397b9880f91f851a49a / . / src / edit.c
blob: e75a1cf118b38f0caa6c7b213cc40daa81738cee [file] [log] [blame]
/* vi:set ts=8 sts=4 sw=4 noet:
*
* VIM - Vi IMproved by Bram Moolenaar
*
* Do ":help uganda" in Vim to read copying and usage conditions.
* Do ":help credits" in Vim to see a list of people who contributed.
* See README.txt for an overview of the Vim source code.
*/
/*
* edit.c: functions for Insert mode
*/
#include "vim.h"
#define BACKSPACE_CHAR 1
#define BACKSPACE_WORD 2
#define BACKSPACE_WORD_NOT_SPACE 3
#define BACKSPACE_LINE 4
// Set when doing something for completion that may call edit() recursively,
// which is not allowed.
static int compl_busy = FALSE;
static void ins_ctrl_v(void);
static void insert_special(int, int, int);
static void redo_literal(int c);
static void start_arrow_common(pos_T *end_insert_pos, int change);
#ifdef FEAT_SPELL
static void check_spell_redraw(void);
#endif
static void stop_insert(pos_T *end_insert_pos, int esc, int nomove);
static int echeck_abbr(int);
static void mb_replace_pop_ins(int cc);
static void replace_flush(void);
static void replace_do_bs(int limit_col);
static int del_char_after_col(int limit_col);
static void ins_reg(void);
static void ins_ctrl_g(void);
static void ins_ctrl_hat(void);
static int ins_esc(long *count, int cmdchar, int nomove);
#ifdef FEAT_RIGHTLEFT
static void ins_ctrl_(void);
#endif
static int ins_start_select(int c);
static void ins_insert(int replaceState);
static void ins_ctrl_o(void);
static void ins_shift(int c, int lastc);
static void ins_del(void);
static int ins_bs(int c, int mode, int *inserted_space_p);
#if defined(FEAT_GUI_TABLINE) || defined(PROTO)
static void ins_tabline(int c);
#endif
static void ins_left(void);
static void ins_home(int c);
static void ins_end(int c);
static void ins_s_left(void);
static void ins_right(void);
static void ins_s_right(void);
static void ins_up(int startcol);
static void ins_pageup(void);
static void ins_down(int startcol);
static void ins_pagedown(void);
#ifdef FEAT_DND
static void ins_drop(void);
#endif
static int ins_tab(void);
#ifdef FEAT_DIGRAPHS
static int ins_digraph(void);
#endif
static int ins_ctrl_ey(int tc);
#if defined(FEAT_EVAL)
static char_u *do_insert_char_pre(int c);
#endif
static colnr_T Insstart_textlen; // length of line when insert started
static colnr_T Insstart_blank_vcol; // vcol for first inserted blank
static int update_Insstart_orig = TRUE; // set Insstart_orig to Insstart
static char_u *last_insert = NULL; // the text of the previous insert,
// K_SPECIAL and CSI are escaped
static int last_insert_skip; // nr of chars in front of previous insert
static int new_insert_skip; // nr of chars in front of current insert
static int did_restart_edit; // "restart_edit" when calling edit()
static int can_cindent; // may do cindenting on this line
#ifdef FEAT_RIGHTLEFT
static int revins_on; // reverse insert mode on
static int revins_chars; // how much to skip after edit
static int revins_legal; // was the last char 'legal'?
static int revins_scol; // start column of revins session
#endif
static int ins_need_undo; // call u_save() before inserting a
// char. Set when edit() is called.
// after that arrow_used is used.
static int dont_sync_undo = FALSE; // CTRL-G U prevents syncing undo for
// the next left/right cursor key
/*
* edit(): Start inserting text.
*
* "cmdchar" can be:
* 'i' normal insert command
* 'a' normal append command
* K_PS bracketed paste
* 'R' replace command
* 'r' "r<CR>" command: insert one <CR>. Note: count can be > 1, for redo,
* but still only one <CR> is inserted. The <Esc> is not used for redo.
* 'g' "gI" command.
* 'V' "gR" command for Virtual Replace mode.
* 'v' "gr" command for single character Virtual Replace mode.
*
* This function is not called recursively. For CTRL-O commands, it returns
* and lets the caller handle the Normal-mode command.
*
* Return TRUE if a CTRL-O command caused the return (insert mode pending).
*/
int
edit(
int cmdchar,
int startln, // if set, insert at start of line
long count)
{
int c = 0;
char_u *ptr;
int lastc = 0;
int mincol;
static linenr_T o_lnum = 0;
int i;
int did_backspace = TRUE; // previous char was backspace
int line_is_white = FALSE; // line is empty before insert
linenr_T old_topline = 0; // topline before insertion
#ifdef FEAT_DIFF
int old_topfill = -1;
#endif
int inserted_space = FALSE; // just inserted a space
int replaceState = MODE_REPLACE;
int nomove = FALSE; // don't move cursor on return
#ifdef FEAT_JOB_CHANNEL
int cmdchar_todo = cmdchar;
#endif
#ifdef FEAT_CONCEAL
int cursor_line_was_concealed;
#endif
// Remember whether editing was restarted after CTRL-O.
did_restart_edit = restart_edit;
// sleep before redrawing, needed for "CTRL-O :" that results in an
// error message
check_for_delay(TRUE);
// set Insstart_orig to Insstart
update_Insstart_orig = TRUE;
#ifdef HAVE_SANDBOX
// Don't allow inserting in the sandbox.
if (sandbox != 0)
{
emsg(_(e_not_allowed_in_sandbox));
return FALSE;
}
#endif
// Don't allow changes in the buffer while editing the cmdline. The
// caller of getcmdline() may get confused.
// Don't allow recursive insert mode when busy with completion.
if (textlock != 0 || ins_compl_active() || compl_busy || pum_visible())
{
emsg(_(e_not_allowed_to_change_text_or_change_window));
return FALSE;
}
ins_compl_clear(); // clear stuff for CTRL-X mode
/*
* Trigger InsertEnter autocommands. Do not do this for "r<CR>" or "grx".
*/
if (cmdchar != 'r' && cmdchar != 'v')
{
pos_T save_cursor = curwin->w_cursor;
#ifdef FEAT_EVAL
if (cmdchar == 'R')
ptr = (char_u *)"r";
else if (cmdchar == 'V')
ptr = (char_u *)"v";
else
ptr = (char_u *)"i";
set_vim_var_string(VV_INSERTMODE, ptr, 1);
set_vim_var_string(VV_CHAR, NULL, -1); // clear v:char
#endif
ins_apply_autocmds(EVENT_INSERTENTER);
// Check for changed highlighting, e.g. for ModeMsg.
if (need_highlight_changed)
highlight_changed();
// Make sure the cursor didn't move. Do call check_cursor_col() in
// case the text was modified. Since Insert mode was not started yet
// a call to check_cursor_col() may move the cursor, especially with
// the "A" command, thus set State to avoid that. Also check that the
// line number is still valid (lines may have been deleted).
// Do not restore if v:char was set to a non-empty string.
if (!EQUAL_POS(curwin->w_cursor, save_cursor)
#ifdef FEAT_EVAL
&& *get_vim_var_str(VV_CHAR) == NUL
#endif
&& save_cursor.lnum <= curbuf->b_ml.ml_line_count)
{
int save_state = State;
curwin->w_cursor = save_cursor;
State = MODE_INSERT;
check_cursor_col();
State = save_state;
}
}
#ifdef FEAT_CONCEAL
// Check if the cursor line was concealed before changing State.
cursor_line_was_concealed = curwin->w_p_cole > 0
&& conceal_cursor_line(curwin);
#endif
/*
* When doing a paste with the middle mouse button, Insstart is set to
* where the paste started.
*/
if (where_paste_started.lnum != 0)
Insstart = where_paste_started;
else
{
Insstart = curwin->w_cursor;
if (startln)
Insstart.col = 0;
}
Insstart_textlen = (colnr_T)linetabsize_str(ml_get_curline());
Insstart_blank_vcol = MAXCOL;
if (!did_ai)
ai_col = 0;
if (cmdchar != NUL && restart_edit == 0)
{
ResetRedobuff();
AppendNumberToRedobuff(count);
if (cmdchar == 'V' || cmdchar == 'v')
{
// "gR" or "gr" command
AppendCharToRedobuff('g');
AppendCharToRedobuff((cmdchar == 'v') ? 'r' : 'R');
}
else
{
if (cmdchar == K_PS)
AppendCharToRedobuff('a');
else
AppendCharToRedobuff(cmdchar);
if (cmdchar == 'g') // "gI" command
AppendCharToRedobuff('I');
else if (cmdchar == 'r') // "r<CR>" command
count = 1; // insert only one <CR>
}
}
if (cmdchar == 'R')
{
State = MODE_REPLACE;
}
else if (cmdchar == 'V' || cmdchar == 'v')
{
State = MODE_VREPLACE;
replaceState = MODE_VREPLACE;
orig_line_count = curbuf->b_ml.ml_line_count;
vr_lines_changed = 1;
}
else
State = MODE_INSERT;
may_trigger_modechanged();
stop_insert_mode = FALSE;
#ifdef FEAT_CONCEAL
// Check if the cursor line needs redrawing after changing State. If
// 'concealcursor' is "n" it needs to be redrawn without concealing.
conceal_check_cursor_line(cursor_line_was_concealed);
#endif
// Need to position cursor again when on a TAB and when on a char with
// virtual text.
if (gchar_cursor() == TAB
#ifdef FEAT_PROP_POPUP
|| curbuf->b_has_textprop
#endif
)
curwin->w_valid &= ~(VALID_WROW|VALID_WCOL|VALID_VIRTCOL);
/*
* Enable langmap or IME, indicated by 'iminsert'.
* Note that IME may enabled/disabled without us noticing here, thus the
* 'iminsert' value may not reflect what is actually used. It is updated
* when hitting <Esc>.
*/
if (curbuf->b_p_iminsert == B_IMODE_LMAP)
State |= MODE_LANGMAP;
#ifdef HAVE_INPUT_METHOD
im_set_active(curbuf->b_p_iminsert == B_IMODE_IM);
#endif
setmouse();
clear_showcmd();
#ifdef FEAT_RIGHTLEFT
// there is no reverse replace mode
revins_on = (State == MODE_INSERT && p_ri);
if (revins_on)
undisplay_dollar();
revins_chars = 0;
revins_legal = 0;
revins_scol = -1;
#endif
if (!p_ek)
{
MAY_WANT_TO_LOG_THIS;
// Disable bracketed paste mode, we won't recognize the escape
// sequences.
out_str(T_BD);
// Disable modifyOtherKeys, keys with modifiers would cause exiting
// Insert mode.
out_str_t_TE();
}
/*
* Handle restarting Insert mode.
* Don't do this for "CTRL-O ." (repeat an insert): In that case we get
* here with something in the stuff buffer.
*/
if (restart_edit != 0 && stuff_empty())
{
/*
* After a paste we consider text typed to be part of the insert for
* the pasted text. You can backspace over the pasted text too.
*/
if (where_paste_started.lnum)
arrow_used = FALSE;
else
arrow_used = TRUE;
restart_edit = 0;
/*
* If the cursor was after the end-of-line before the CTRL-O and it is
* now at the end-of-line, put it after the end-of-line (this is not
* correct in very rare cases).
* Also do this if curswant is greater than the current virtual
* column. Eg after "^O$" or "^O80|".
*/
validate_virtcol();
update_curswant();
if (((ins_at_eol && curwin->w_cursor.lnum == o_lnum)
|| curwin->w_curswant > curwin->w_virtcol)
&& *(ptr = ml_get_curline() + curwin->w_cursor.col) != NUL)
{
if (ptr[1] == NUL)
++curwin->w_cursor.col;
else if (has_mbyte)
{
i = (*mb_ptr2len)(ptr);
if (ptr[i] == NUL)
curwin->w_cursor.col += i;
}
}
ins_at_eol = FALSE;
}
else
arrow_used = FALSE;
// we are in insert mode now, don't need to start it anymore
need_start_insertmode = FALSE;
// Need to save the line for undo before inserting the first char.
ins_need_undo = TRUE;
where_paste_started.lnum = 0;
can_cindent = TRUE;
#ifdef FEAT_FOLDING
// The cursor line is not in a closed fold, unless 'insertmode' is set or
// restarting.
if (!p_im && did_restart_edit == 0)
foldOpenCursor();
#endif
/*
* If 'showmode' is set, show the current (insert/replace/..) mode.
* A warning message for changing a readonly file is given here, before
* actually changing anything. It's put after the mode, if any.
*/
i = 0;
if (p_smd && msg_silent == 0)
i = showmode();
if (!p_im && did_restart_edit == 0)
change_warning(i == 0 ? 0 : i + 1);
#ifdef CURSOR_SHAPE
ui_cursor_shape(); // may show different cursor shape
#endif
#ifdef FEAT_DIGRAPHS
do_digraph(-1); // clear digraphs
#endif
/*
* Get the current length of the redo buffer, those characters have to be
* skipped if we want to get to the inserted characters.
*/
ptr = get_inserted();
if (ptr == NULL)
new_insert_skip = 0;
else
{
new_insert_skip = (int)STRLEN(ptr);
vim_free(ptr);
}
old_indent = 0;
/*
* Main loop in Insert mode: repeat until Insert mode is left.
*/
for (;;)
{
#ifdef FEAT_RIGHTLEFT
if (!revins_legal)
revins_scol = -1; // reset on illegal motions
else
revins_legal = 0;
#endif
if (arrow_used) // don't repeat insert when arrow key used
count = 0;
if (update_Insstart_orig)
Insstart_orig = Insstart;
if (stop_insert_mode && !ins_compl_active())
{
// ":stopinsert" used or 'insertmode' reset
count = 0;
goto doESCkey;
}
// set curwin->w_curswant for next K_DOWN or K_UP
if (!arrow_used)
curwin->w_set_curswant = TRUE;
// If there is no typeahead may check for timestamps (e.g., for when a
// menu invoked a shell command).
if (stuff_empty())
{
did_check_timestamps = FALSE;
if (need_check_timestamps)
check_timestamps(FALSE);
}
/*
* When emsg() was called msg_scroll will have been set.
*/
msg_scroll = FALSE;
#ifdef FEAT_GUI
// When 'mousefocus' is set a mouse movement may have taken us to
// another window. "need_mouse_correct" may then be set because of an
// autocommand.
if (need_mouse_correct)
gui_mouse_correct();
#endif
#ifdef FEAT_FOLDING
// Open fold at the cursor line, according to 'foldopen'.
if (fdo_flags & FDO_INSERT)
foldOpenCursor();
// Close folds where the cursor isn't, according to 'foldclose'
if (!char_avail())
foldCheckClose();
#endif
#ifdef FEAT_JOB_CHANNEL
if (bt_prompt(curbuf))
{
init_prompt(cmdchar_todo);
cmdchar_todo = NUL;
}
#endif
/*
* If we inserted a character at the last position of the last line in
* the window, scroll the window one line up. This avoids an extra
* redraw.
* This is detected when the cursor column is smaller after inserting
* something.
* Don't do this when the topline changed already, it has
* already been adjusted (by insertchar() calling open_line())).
* Also don't do this when 'smoothscroll' is set, as the window should
* then be scrolled by screen lines.
*/
if (curbuf->b_mod_set
&& curwin->w_p_wrap
&& !curwin->w_p_sms
&& !did_backspace
&& curwin->w_topline == old_topline
#ifdef FEAT_DIFF
&& curwin->w_topfill == old_topfill
#endif
)
{
mincol = curwin->w_wcol;
validate_cursor_col();
if (
#ifdef FEAT_VARTABS
curwin->w_wcol < mincol - tabstop_at(get_nolist_virtcol(),
curbuf->b_p_ts,
curbuf->b_p_vts_array,
FALSE)
#else
(int)curwin->w_wcol < mincol - curbuf->b_p_ts
#endif
&& curwin->w_wrow ==
curwin->w_height - 1 - get_scrolloff_value()
&& (curwin->w_cursor.lnum != curwin->w_topline
#ifdef FEAT_DIFF
|| curwin->w_topfill > 0
#endif
))
{
#ifdef FEAT_DIFF
if (curwin->w_topfill > 0)
--curwin->w_topfill;
else
#endif
#ifdef FEAT_FOLDING
if (hasFolding(curwin->w_topline, NULL, &old_topline))
set_topline(curwin, old_topline + 1);
else
#endif
set_topline(curwin, curwin->w_topline + 1);
}
}
// May need to adjust w_topline to show the cursor.
update_topline();
did_backspace = FALSE;
validate_cursor(); // may set must_redraw
/*
* Redraw the display when no characters are waiting.
* Also shows mode, ruler and positions cursor.
*/
ins_redraw(TRUE);
if (curwin->w_p_scb)
do_check_scrollbind(TRUE);
if (curwin->w_p_crb)
do_check_cursorbind();
update_curswant();
old_topline = curwin->w_topline;
#ifdef FEAT_DIFF
old_topfill = curwin->w_topfill;
#endif
#ifdef USE_ON_FLY_SCROLL
dont_scroll = FALSE; // allow scrolling here
#endif
// May request the keyboard protocol state now.
may_send_t_RK();
/*
* Get a character for Insert mode. Ignore K_IGNORE and K_NOP.
*/
if (c != K_CURSORHOLD)
lastc = c; // remember the previous char for CTRL-D
// After using CTRL-G U the next cursor key will not break undo.
if (dont_sync_undo == MAYBE)
dont_sync_undo = TRUE;
else
dont_sync_undo = FALSE;
if (cmdchar == K_PS)
// Got here from normal mode when bracketed paste started.
c = K_PS;
else
do
{
c = safe_vgetc();
if (stop_insert_mode
#ifdef FEAT_TERMINAL
|| (c == K_IGNORE && term_use_loop())
#endif
)
{
// Insert mode ended, possibly from a callback, or a timer
// must have opened a terminal window.
if (c != K_IGNORE && c != K_NOP)
vungetc(c);
count = 0;
nomove = TRUE;
ins_compl_prep(ESC);
goto doESCkey;
}
} while (c == K_IGNORE || c == K_NOP);
// Don't want K_CURSORHOLD for the second key, e.g., after CTRL-V.
did_cursorhold = TRUE;
#ifdef FEAT_RIGHTLEFT
if (p_hkmap && KeyTyped)
c = hkmap(c); // Hebrew mode mapping
#endif
// If the window was made so small that nothing shows, make it at least
// one line and one column when typing.
if (KeyTyped && !KeyStuffed)
win_ensure_size();
/*
* Special handling of keys while the popup menu is visible or wanted
* and the cursor is still in the completed word. Only when there is
* a match, skip this when no matches were found.
*/
if (ins_compl_active()
&& pum_wanted()
&& curwin->w_cursor.col >= ins_compl_col()
&& ins_compl_has_shown_match())
{
// BS: Delete one character from "compl_leader".
if ((c == K_BS || c == Ctrl_H)
&& curwin->w_cursor.col > ins_compl_col()
&& (c = ins_compl_bs()) == NUL)
continue;
// When no match was selected or it was edited.
if (!ins_compl_used_match())
{
// CTRL-L: Add one character from the current match to
// "compl_leader". Except when at the original match and
// there is nothing to add, CTRL-L works like CTRL-P then.
if (c == Ctrl_L
&& (!ctrl_x_mode_line_or_eval()
|| ins_compl_long_shown_match()))
{
ins_compl_addfrommatch();
continue;
}
// A non-white character that fits in with the current
// completion: Add to "compl_leader".
if (ins_compl_accept_char(c))
{
#if defined(FEAT_EVAL)
// Trigger InsertCharPre.
char_u *str = do_insert_char_pre(c);
char_u *p;
if (str != NULL)
{
for (p = str; *p != NUL; MB_PTR_ADV(p))
ins_compl_addleader(PTR2CHAR(p));
vim_free(str);
}
else
#endif
ins_compl_addleader(c);
continue;
}
// Pressing CTRL-Y selects the current match. When
// ins_compl_enter_selects() is set the Enter key does the
// same.
if ((c == Ctrl_Y || (ins_compl_enter_selects()
&& (c == CAR || c == K_KENTER || c == NL)))
&& stop_arrow() == OK)
{
ins_compl_delete();
ins_compl_insert(FALSE);
}
}
}
// Prepare for or stop CTRL-X mode. This doesn't do completion, but
// it does fix up the text when finishing completion.
ins_compl_init_get_longest();
if (ins_compl_prep(c))
continue;
// CTRL-\ CTRL-N goes to Normal mode,
// CTRL-\ CTRL-G goes to mode selected with 'insertmode',
// CTRL-\ CTRL-O is like CTRL-O but without moving the cursor.
if (c == Ctrl_BSL)
{
// may need to redraw when no more chars available now
ins_redraw(FALSE);
++no_mapping;
++allow_keys;
c = plain_vgetc();
--no_mapping;
--allow_keys;
if (c != Ctrl_N && c != Ctrl_G && c != Ctrl_O)
{
// it's something else
vungetc(c);
c = Ctrl_BSL;
}
else if (c == Ctrl_G && p_im)
continue;
else
{
if (c == Ctrl_O)
{
ins_ctrl_o();
ins_at_eol = FALSE; // cursor keeps its column
nomove = TRUE;
}
count = 0;
goto doESCkey;
}
}
#ifdef FEAT_DIGRAPHS
c = do_digraph(c);
#endif
if ((c == Ctrl_V || c == Ctrl_Q) && ctrl_x_mode_cmdline())
goto docomplete;
if (c == Ctrl_V || c == Ctrl_Q)
{
ins_ctrl_v();
c = Ctrl_V; // pretend CTRL-V is last typed character
continue;
}
if (cindent_on() && ctrl_x_mode_none())
{
// A key name preceded by a bang means this key is not to be
// inserted. Skip ahead to the re-indenting below.
// A key name preceded by a star means that indenting has to be
// done before inserting the key.
line_is_white = inindent(0);
if (in_cinkeys(c, '!', line_is_white))
goto force_cindent;
if (can_cindent && in_cinkeys(c, '*', line_is_white)
&& stop_arrow() == OK)
do_c_expr_indent();
}
#ifdef FEAT_RIGHTLEFT
if (curwin->w_p_rl)
switch (c)
{
case K_LEFT: c = K_RIGHT; break;
case K_S_LEFT: c = K_S_RIGHT; break;
case K_C_LEFT: c = K_C_RIGHT; break;
case K_RIGHT: c = K_LEFT; break;
case K_S_RIGHT: c = K_S_LEFT; break;
case K_C_RIGHT: c = K_C_LEFT; break;
}
#endif
/*
* If 'keymodel' contains "startsel", may start selection. If it
* does, a CTRL-O and c will be stuffed, we need to get these
* characters.
*/
if (ins_start_select(c))
continue;
/*
* The big switch to handle a character in insert mode.
*/
switch (c)
{
case ESC: // End input mode
if (echeck_abbr(ESC + ABBR_OFF))
break;
// FALLTHROUGH
case Ctrl_C: // End input mode
if (c == Ctrl_C && cmdwin_type != 0)
{
// Close the cmdline window.
cmdwin_result = K_IGNORE;
got_int = FALSE; // don't stop executing autocommands et al.
nomove = TRUE;
goto doESCkey;
}
#ifdef FEAT_JOB_CHANNEL
if (c == Ctrl_C && bt_prompt(curbuf))
{
if (invoke_prompt_interrupt())
{
if (!bt_prompt(curbuf))
// buffer changed to a non-prompt buffer, get out of
// Insert mode
goto doESCkey;
break;
}
}
#endif
#ifdef UNIX
do_intr:
#endif
// when 'insertmode' set, and not halfway a mapping, don't leave
// Insert mode
if (goto_im())
{
if (got_int)
{
(void)vgetc(); // flush all buffers
got_int = FALSE;
}
else
vim_beep(BO_IM);
break;
}
doESCkey:
/*
* This is the ONLY return from edit()!
*/
// Always update o_lnum, so that a "CTRL-O ." that adds a line
// still puts the cursor back after the inserted text.
if (ins_at_eol && gchar_cursor() == NUL)
o_lnum = curwin->w_cursor.lnum;
if (ins_esc(&count, cmdchar, nomove))
{
// When CTRL-C was typed got_int will be set, with the result
// that the autocommands won't be executed. When mapped got_int
// is not set, but let's keep the behavior the same.
if (cmdchar != 'r' && cmdchar != 'v' && c != Ctrl_C)
ins_apply_autocmds(EVENT_INSERTLEAVE);
did_cursorhold = FALSE;
// ins_redraw() triggers TextChangedI only when no characters
// are in the typeahead buffer, so reset curbuf->b_last_changedtick only
// if the TextChangedI was not blocked by char_avail() (e.g. using :norm!)
// and the TextChangedI autocommand has been triggered.
if (!char_avail() && curbuf->b_last_changedtick_i == CHANGEDTICK(curbuf))
curbuf->b_last_changedtick = CHANGEDTICK(curbuf);
return (c == Ctrl_O);
}
continue;
case Ctrl_Z: // suspend when 'insertmode' set
if (!p_im)
goto normalchar; // insert CTRL-Z as normal char
do_cmdline_cmd((char_u *)"stop");
#ifdef CURSOR_SHAPE
ui_cursor_shape(); // may need to update cursor shape
#endif
continue;
case Ctrl_O: // execute one command
#ifdef FEAT_COMPL_FUNC
if (ctrl_x_mode_omni())
goto docomplete;
#endif
if (echeck_abbr(Ctrl_O + ABBR_OFF))
break;
ins_ctrl_o();
// don't move the cursor left when 'virtualedit' has "onemore".
if (get_ve_flags() & VE_ONEMORE)
{
ins_at_eol = FALSE;
nomove = TRUE;
}
count = 0;
goto doESCkey;
case K_INS: // toggle insert/replace mode
case K_KINS:
ins_insert(replaceState);
break;
case K_SELECT: // end of Select mode mapping - ignore
break;
case K_HELP: // Help key works like <ESC> <Help>
case K_F1:
case K_XF1:
stuffcharReadbuff(K_HELP);
if (p_im)
need_start_insertmode = TRUE;
goto doESCkey;
#ifdef FEAT_NETBEANS_INTG
case K_F21: // NetBeans command
++no_mapping; // don't map the next key hits
i = plain_vgetc();
--no_mapping;
netbeans_keycommand(i);
break;
#endif
case K_ZERO: // Insert the previously inserted text.
case NUL:
case Ctrl_A:
// For ^@ the trailing ESC will end the insert, unless there is an
// error.
if (stuff_inserted(NUL, 1L, (c == Ctrl_A)) == FAIL
&& c != Ctrl_A && !p_im)
goto doESCkey; // quit insert mode
inserted_space = FALSE;
break;
case Ctrl_R: // insert the contents of a register
ins_reg();
auto_format(FALSE, TRUE);
inserted_space = FALSE;
break;
case Ctrl_G: // commands starting with CTRL-G
ins_ctrl_g();
break;
case Ctrl_HAT: // switch input mode and/or langmap
ins_ctrl_hat();
break;
#ifdef FEAT_RIGHTLEFT
case Ctrl__: // switch between languages
if (!p_ari)
goto normalchar;
ins_ctrl_();
break;
#endif
case Ctrl_D: // Make indent one shiftwidth smaller.
#if defined(FEAT_FIND_ID)
if (ctrl_x_mode_path_defines())
goto docomplete;
#endif
// FALLTHROUGH
case Ctrl_T: // Make indent one shiftwidth greater.
if (c == Ctrl_T && ctrl_x_mode_thesaurus())
{
if (has_compl_option(FALSE))
goto docomplete;
break;
}
ins_shift(c, lastc);
auto_format(FALSE, TRUE);
inserted_space = FALSE;
break;
case K_DEL: // delete character under the cursor
case K_KDEL:
ins_del();
auto_format(FALSE, TRUE);
break;
case K_BS: // delete character before the cursor
case K_S_BS:
case Ctrl_H:
did_backspace = ins_bs(c, BACKSPACE_CHAR, &inserted_space);
auto_format(FALSE, TRUE);
break;
case Ctrl_W: // delete word before the cursor
#ifdef FEAT_JOB_CHANNEL
if (bt_prompt(curbuf) && (mod_mask & MOD_MASK_SHIFT) == 0)
{
// In a prompt window CTRL-W is used for window commands.
// Use Shift-CTRL-W to delete a word.
stuffcharReadbuff(Ctrl_W);
restart_edit = 'A';
nomove = TRUE;
count = 0;
goto doESCkey;
}
#endif
did_backspace = ins_bs(c, BACKSPACE_WORD, &inserted_space);
auto_format(FALSE, TRUE);
break;
case Ctrl_U: // delete all inserted text in current line
# ifdef FEAT_COMPL_FUNC
// CTRL-X CTRL-U completes with 'completefunc'.
if (ctrl_x_mode_function())
goto docomplete;
# endif
did_backspace = ins_bs(c, BACKSPACE_LINE, &inserted_space);
auto_format(FALSE, TRUE);
inserted_space = FALSE;
break;
case K_LEFTMOUSE: // mouse keys
case K_LEFTMOUSE_NM:
case K_LEFTDRAG:
case K_LEFTRELEASE:
case K_LEFTRELEASE_NM:
case K_MOUSEMOVE:
case K_MIDDLEMOUSE:
case K_MIDDLEDRAG:
case K_MIDDLERELEASE:
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:
ins_mouse(c);
break;
case K_MOUSEDOWN: // Default action for scroll wheel up: scroll up
ins_mousescroll(MSCR_DOWN);
break;
case K_MOUSEUP: // Default action for scroll wheel down: scroll down
ins_mousescroll(MSCR_UP);
break;
case K_MOUSELEFT: // Scroll wheel left
ins_mousescroll(MSCR_LEFT);
break;
case K_MOUSERIGHT: // Scroll wheel right
ins_mousescroll(MSCR_RIGHT);
break;
case K_PS:
bracketed_paste(PASTE_INSERT, FALSE, NULL);
if (cmdchar == K_PS)
// invoked from normal mode, bail out
goto doESCkey;
break;
case K_PE:
// Got K_PE without K_PS, ignore.
break;
#ifdef FEAT_GUI_TABLINE
case K_TABLINE:
case K_TABMENU:
ins_tabline(c);
break;
#endif
case K_IGNORE: // Something mapped to nothing
break;
case K_COMMAND: // <Cmd>command<CR>
case K_SCRIPT_COMMAND: // <ScriptCmd>command<CR>
{
do_cmdkey_command(c, 0);
#ifdef FEAT_TERMINAL
if (term_use_loop())
// Started a terminal that gets the input, exit Insert mode.
goto doESCkey;
#endif
if (curbuf->b_u_synced)
// The command caused undo to be synced. Need to save the
// line for undo before inserting the next char.
ins_need_undo = TRUE;
}
break;
case K_CURSORHOLD: // Didn't type something for a while.
ins_apply_autocmds(EVENT_CURSORHOLDI);
did_cursorhold = TRUE;
// If CTRL-G U was used apply it to the next typed key.
if (dont_sync_undo == TRUE)
dont_sync_undo = MAYBE;
break;
#ifdef FEAT_GUI_MSWIN
// On MS-Windows ignore <M-F4>, we get it when closing the window
// was cancelled.
case K_F4:
if (mod_mask != MOD_MASK_ALT)
goto normalchar;
break;
#endif
#ifdef FEAT_GUI
case K_VER_SCROLLBAR:
ins_scroll();
break;
case K_HOR_SCROLLBAR:
ins_horscroll();
break;
#endif
case K_HOME: // <Home>
case K_KHOME:
case K_S_HOME:
case K_C_HOME:
ins_home(c);
break;
case K_END: // <End>
case K_KEND:
case K_S_END:
case K_C_END:
ins_end(c);
break;
case K_LEFT: // <Left>
if (mod_mask & (MOD_MASK_SHIFT|MOD_MASK_CTRL))
ins_s_left();
else
ins_left();
break;
case K_S_LEFT: // <S-Left>
case K_C_LEFT:
ins_s_left();
break;
case K_RIGHT: // <Right>
if (mod_mask & (MOD_MASK_SHIFT|MOD_MASK_CTRL))
ins_s_right();
else
ins_right();
break;
case K_S_RIGHT: // <S-Right>
case K_C_RIGHT:
ins_s_right();
break;
case K_UP: // <Up>
if (pum_visible())
goto docomplete;
if (mod_mask & MOD_MASK_SHIFT)
ins_pageup();
else
ins_up(FALSE);
break;
case K_S_UP: // <S-Up>
case K_PAGEUP:
case K_KPAGEUP:
if (pum_visible())
goto docomplete;
ins_pageup();
break;
case K_DOWN: // <Down>
if (pum_visible())
goto docomplete;
if (mod_mask & MOD_MASK_SHIFT)
ins_pagedown();
else
ins_down(FALSE);
break;
case K_S_DOWN: // <S-Down>
case K_PAGEDOWN:
case K_KPAGEDOWN:
if (pum_visible())
goto docomplete;
ins_pagedown();
break;
#ifdef FEAT_DND
case K_DROP: // drag-n-drop event
ins_drop();
break;
#endif
case K_S_TAB: // When not mapped, use like a normal TAB
c = TAB;
// FALLTHROUGH
case TAB: // TAB or Complete patterns along path
#if defined(FEAT_FIND_ID)
if (ctrl_x_mode_path_patterns())
goto docomplete;
#endif
inserted_space = FALSE;
if (ins_tab())
goto normalchar; // insert TAB as a normal char
auto_format(FALSE, TRUE);
break;
case K_KENTER: // <Enter>
c = CAR;
// FALLTHROUGH
case CAR:
case NL:
#if defined(FEAT_QUICKFIX)
// In a quickfix window a <CR> jumps to the error under the
// cursor.
if (bt_quickfix(curbuf) && c == CAR)
{
if (curwin->w_llist_ref == NULL) // quickfix window
do_cmdline_cmd((char_u *)".cc");
else // location list window
do_cmdline_cmd((char_u *)".ll");
break;
}
#endif
if (cmdwin_type != 0)
{
// Execute the command in the cmdline window.
cmdwin_result = CAR;
goto doESCkey;
}
#ifdef FEAT_JOB_CHANNEL
if (bt_prompt(curbuf))
{
invoke_prompt_callback();
if (!bt_prompt(curbuf))
// buffer changed to a non-prompt buffer, get out of
// Insert mode
goto doESCkey;
break;
}
#endif
if (ins_eol(c) == FAIL && !p_im)
goto doESCkey; // out of memory
auto_format(FALSE, FALSE);
inserted_space = FALSE;
break;
case Ctrl_K: // digraph or keyword completion
if (ctrl_x_mode_dictionary())
{
if (has_compl_option(TRUE))
goto docomplete;
break;
}
#ifdef FEAT_DIGRAPHS
c = ins_digraph();
if (c == NUL)
break;
#endif
goto normalchar;
case Ctrl_X: // Enter CTRL-X mode
ins_ctrl_x();
break;
case Ctrl_RSB: // Tag name completion after ^X
if (!ctrl_x_mode_tags())
goto normalchar;
goto docomplete;
case Ctrl_F: // File name completion after ^X
if (!ctrl_x_mode_files())
goto normalchar;
goto docomplete;
case 's': // Spelling completion after ^X
case Ctrl_S:
if (!ctrl_x_mode_spell())
goto normalchar;
goto docomplete;
case Ctrl_L: // Whole line completion after ^X
if (!ctrl_x_mode_whole_line())
{
// CTRL-L with 'insertmode' set: Leave Insert mode
if (p_im)
{
if (echeck_abbr(Ctrl_L + ABBR_OFF))
break;
goto doESCkey;
}
goto normalchar;
}
// FALLTHROUGH
case Ctrl_P: // Do previous/next pattern completion
case Ctrl_N:
// if 'complete' is empty then plain ^P is no longer special,
// but it is under other ^X modes
if (*curbuf->b_p_cpt == NUL
&& (ctrl_x_mode_normal() || ctrl_x_mode_whole_line())
&& !compl_status_local())
goto normalchar;
docomplete:
compl_busy = TRUE;
#ifdef FEAT_FOLDING
disable_fold_update++; // don't redraw folds here
#endif
if (ins_complete(c, TRUE) == FAIL)
compl_status_clear();
#ifdef FEAT_FOLDING
disable_fold_update--;
#endif
compl_busy = FALSE;
can_si = may_do_si(); // allow smartindenting
break;
case Ctrl_Y: // copy from previous line or scroll down
case Ctrl_E: // copy from next line or scroll up
c = ins_ctrl_ey(c);
break;
default:
#ifdef UNIX
if (c == intr_char) // special interrupt char
goto do_intr;
#endif
normalchar:
/*
* Insert a normal character.
*/
#if defined(FEAT_EVAL)
if (!p_paste)
{
// Trigger InsertCharPre.
char_u *str = do_insert_char_pre(c);
char_u *p;
if (str != NULL)
{
if (*str != NUL && stop_arrow() != FAIL)
{
// Insert the new value of v:char literally.
for (p = str; *p != NUL; MB_PTR_ADV(p))
{
c = PTR2CHAR(p);
if (c == CAR || c == K_KENTER || c == NL)
ins_eol(c);
else
ins_char(c);
}
AppendToRedobuffLit(str, -1);
}
vim_free(str);
c = NUL;
}
// If the new value is already inserted or an empty string
// then don't insert any character.
if (c == NUL)
break;
}
#endif
// Try to perform smart-indenting.
ins_try_si(c);
if (c == ' ')
{
inserted_space = TRUE;
if (inindent(0))
can_cindent = FALSE;
if (Insstart_blank_vcol == MAXCOL
&& curwin->w_cursor.lnum == Insstart.lnum)
Insstart_blank_vcol = get_nolist_virtcol();
}
// Insert a normal character and check for abbreviations on a
// special character. Let CTRL-] expand abbreviations without
// inserting it.
if (vim_iswordc(c) || (!echeck_abbr(
// Add ABBR_OFF for characters above 0x100, this is
// what check_abbr() expects.
(has_mbyte && c >= 0x100) ? (c + ABBR_OFF) : c)
&& c != Ctrl_RSB))
{
insert_special(c, FALSE, FALSE);
#ifdef FEAT_RIGHTLEFT
revins_legal++;
revins_chars++;
#endif
}
auto_format(FALSE, TRUE);
#ifdef FEAT_FOLDING
// When inserting a character the cursor line must never be in a
// closed fold.
foldOpenCursor();
#endif
break;
} // end of switch (c)
// If typed something may trigger CursorHoldI again.
if (c != K_CURSORHOLD
#ifdef FEAT_COMPL_FUNC
// but not in CTRL-X mode, a script can't restore the state
&& ctrl_x_mode_normal()
#endif
)
did_cursorhold = FALSE;
// If the cursor was moved we didn't just insert a space
if (arrow_used)
inserted_space = FALSE;
if (can_cindent && cindent_on() && ctrl_x_mode_normal())
{
force_cindent:
/*
* Indent now if a key was typed that is in 'cinkeys'.
*/
if (in_cinkeys(c, ' ', line_is_white))
{
if (stop_arrow() == OK)
// re-indent the current line
do_c_expr_indent();
}
}
} // for (;;)
// NOTREACHED
}
int
ins_need_undo_get(void)
{
return ins_need_undo;
}
/*
* Redraw for Insert mode.
* This is postponed until getting the next character to make '$' in the 'cpo'
* option work correctly.
* Only redraw when there are no characters available. This speeds up
* inserting sequences of characters (e.g., for CTRL-R).
*/
void
ins_redraw(int ready) // not busy with something
{
#ifdef FEAT_CONCEAL
linenr_T conceal_old_cursor_line = 0;
linenr_T conceal_new_cursor_line = 0;
int conceal_update_lines = FALSE;
#endif
if (char_avail())
return;
// Trigger CursorMoved if the cursor moved. Not when the popup menu is
// visible, the command might delete it.
if (ready && (has_cursormovedI()
# ifdef FEAT_PROP_POPUP
|| popup_visible
# endif
# if defined(FEAT_CONCEAL)
|| curwin->w_p_cole > 0
# endif
)
&& !EQUAL_POS(last_cursormoved, curwin->w_cursor)
&& !pum_visible())
{
# ifdef FEAT_SYN_HL
// Need to update the screen first, to make sure syntax
// highlighting is correct after making a change (e.g., inserting
// a "(". The autocommand may also require a redraw, so it's done
// again below, unfortunately.
if (syntax_present(curwin) && must_redraw)
update_screen(0);
# endif
if (has_cursormovedI())
{
// Make sure curswant is correct, an autocommand may call
// getcurpos().
update_curswant();
ins_apply_autocmds(EVENT_CURSORMOVEDI);
}
#ifdef FEAT_PROP_POPUP
if (popup_visible)
popup_check_cursor_pos();
#endif
# ifdef FEAT_CONCEAL
if (curwin->w_p_cole > 0)
{
conceal_old_cursor_line = last_cursormoved.lnum;
conceal_new_cursor_line = curwin->w_cursor.lnum;
conceal_update_lines = TRUE;
}
# endif
last_cursormoved = curwin->w_cursor;
}
// Trigger TextChangedI if b_changedtick_i differs.
if (ready && has_textchangedI()
&& curbuf->b_last_changedtick_i != CHANGEDTICK(curbuf)
&& !pum_visible())
{
aco_save_T aco;
varnumber_T tick = CHANGEDTICK(curbuf);
// Save and restore curwin and curbuf, in case the autocmd changes
// them.
aucmd_prepbuf(&aco, curbuf);
apply_autocmds(EVENT_TEXTCHANGEDI, NULL, NULL, FALSE, curbuf);
aucmd_restbuf(&aco);
curbuf->b_last_changedtick_i = CHANGEDTICK(curbuf);
if (tick != CHANGEDTICK(curbuf)) // see ins_apply_autocmds()
u_save(curwin->w_cursor.lnum,
(linenr_T)(curwin->w_cursor.lnum + 1));
}
// Trigger TextChangedP if b_changedtick_pum differs. When the popupmenu
// closes TextChangedI will need to trigger for backwards compatibility,
// thus use different b_last_changedtick* variables.
if (ready && has_textchangedP()
&& curbuf->b_last_changedtick_pum != CHANGEDTICK(curbuf)
&& pum_visible())
{
aco_save_T aco;
varnumber_T tick = CHANGEDTICK(curbuf);
// Save and restore curwin and curbuf, in case the autocmd changes
// them.
aucmd_prepbuf(&aco, curbuf);
apply_autocmds(EVENT_TEXTCHANGEDP, NULL, NULL, FALSE, curbuf);
aucmd_restbuf(&aco);
curbuf->b_last_changedtick_pum = CHANGEDTICK(curbuf);
if (tick != CHANGEDTICK(curbuf)) // see ins_apply_autocmds()
u_save(curwin->w_cursor.lnum,
(linenr_T)(curwin->w_cursor.lnum + 1));
}
if (ready)
may_trigger_win_scrolled_resized();
// Trigger SafeState if nothing is pending.
may_trigger_safestate(ready
&& !ins_compl_active()
&& !pum_visible());
#if defined(FEAT_CONCEAL)
if ((conceal_update_lines
&& (conceal_old_cursor_line != conceal_new_cursor_line
|| conceal_cursor_line(curwin)))
|| need_cursor_line_redraw)
{
if (conceal_old_cursor_line != conceal_new_cursor_line)
redrawWinline(curwin, conceal_old_cursor_line);
redrawWinline(curwin, conceal_new_cursor_line == 0
? curwin->w_cursor.lnum : conceal_new_cursor_line);
curwin->w_valid &= ~VALID_CROW;
need_cursor_line_redraw = FALSE;
}
#endif
if (must_redraw)
update_screen(0);
else if (clear_cmdline || redraw_cmdline)
showmode(); // clear cmdline and show mode
showruler(FALSE);
setcursor();
emsg_on_display = FALSE; // may remove error message now
}
/*
* Handle a CTRL-V or CTRL-Q typed in Insert mode.
*/
static void
ins_ctrl_v(void)
{
int c;
int did_putchar = FALSE;
// may need to redraw when no more chars available now
ins_redraw(FALSE);
if (redrawing() && !char_avail())
{
edit_putchar('^', TRUE);
did_putchar = TRUE;
}
AppendToRedobuff((char_u *)CTRL_V_STR); // CTRL-V
add_to_showcmd_c(Ctrl_V);
// Do not change any modifyOtherKeys ESC sequence to a normal key for
// CTRL-SHIFT-V.
c = get_literal(mod_mask & MOD_MASK_SHIFT);
if (did_putchar)
// when the line fits in 'columns' the '^' is at the start of the next
// line and will not removed by the redraw
edit_unputchar();
clear_showcmd();
insert_special(c, FALSE, TRUE);
#ifdef FEAT_RIGHTLEFT
revins_chars++;
revins_legal++;
#endif
}
/*
* After getting an ESC or CSI for a literal key: If the typeahead buffer
* contains a modifyOtherKeys sequence then decode it and return the result.
* Otherwise return "c".
* Note that this doesn't wait for characters, they must be in the typeahead
* buffer already.
*/
static int
decodeModifyOtherKeys(int c)
{
char_u *p = typebuf.tb_buf + typebuf.tb_off;
int idx;
int form = 0;
int argidx = 0;
int arg[2] = {0, 0};
// Recognize:
// form 0: {lead}{key};{modifier}u
// form 1: {lead}27;{modifier};{key}~
if (typebuf.tb_len >= 4 && (c == CSI || (c == ESC && *p == '[')))
{
idx = (*p == '[');
if (p[idx] == '2' && p[idx + 1] == '7' && p[idx + 2] == ';')
{
form = 1;
idx += 3;
}
while (idx < typebuf.tb_len && argidx < 2)
{
if (p[idx] == ';')
++argidx;
else if (VIM_ISDIGIT(p[idx]))
arg[argidx] = arg[argidx] * 10 + (p[idx] - '0');
else
break;
++idx;
}
if (idx < typebuf.tb_len
&& p[idx] == (form == 1 ? '~' : 'u')
&& argidx == 1)
{
// Match, consume the code.
typebuf.tb_off += idx + 1;
typebuf.tb_len -= idx + 1;
#if defined(FEAT_CLIENTSERVER) || defined(FEAT_EVAL)
if (typebuf.tb_len == 0)
typebuf_was_filled = FALSE;
#endif
mod_mask = decode_modifiers(arg[!form]);
c = merge_modifyOtherKeys(arg[form], &mod_mask);
}
}
return c;
}
/*
* Put a character directly onto the screen. It's not stored in a buffer.
* Used while handling CTRL-K, CTRL-V, etc. in Insert mode.
*/
static int pc_status;
#define PC_STATUS_UNSET 0 // pc_bytes was not set
#define PC_STATUS_RIGHT 1 // right half of double-wide char
#define PC_STATUS_LEFT 2 // left half of double-wide char
#define PC_STATUS_SET 3 // pc_bytes was filled
static char_u pc_bytes[MB_MAXBYTES + 1]; // saved bytes
static int pc_attr;
static int pc_row;
static int pc_col;
void
edit_putchar(int c, int highlight)
{
int attr;
if (ScreenLines == NULL)
return;
update_topline(); // just in case w_topline isn't valid
validate_cursor();
if (highlight)
attr = HL_ATTR(HLF_8);
else
attr = 0;
pc_row = W_WINROW(curwin) + curwin->w_wrow;
pc_col = curwin->w_wincol;
pc_status = PC_STATUS_UNSET;
#ifdef FEAT_RIGHTLEFT
if (curwin->w_p_rl)
{
pc_col += curwin->w_width - 1 - curwin->w_wcol;
if (has_mbyte)
{
int fix_col = mb_fix_col(pc_col, pc_row);
if (fix_col != pc_col)
{
screen_putchar(' ', pc_row, fix_col, attr);
--curwin->w_wcol;
pc_status = PC_STATUS_RIGHT;
}
}
}
else
#endif
{
pc_col += curwin->w_wcol;
if (mb_lefthalve(pc_row, pc_col))
pc_status = PC_STATUS_LEFT;
}
// save the character to be able to put it back
if (pc_status == PC_STATUS_UNSET)
{
screen_getbytes(pc_row, pc_col, pc_bytes, &pc_attr);
pc_status = PC_STATUS_SET;
}
screen_putchar(c, pc_row, pc_col, attr);
}
#if defined(FEAT_JOB_CHANNEL) || defined(PROTO)
/*
* Set the insert start position for when using a prompt buffer.
*/
void
set_insstart(linenr_T lnum, int col)
{
Insstart.lnum = lnum;
Insstart.col = col;
Insstart_orig = Insstart;
Insstart_textlen = Insstart.col;
Insstart_blank_vcol = MAXCOL;
arrow_used = FALSE;
}
#endif
/*
* Undo the previous edit_putchar().
*/
void
edit_unputchar(void)
{
if (pc_status != PC_STATUS_UNSET && pc_row >= msg_scrolled)
{
if (pc_status == PC_STATUS_RIGHT)
++curwin->w_wcol;
if (pc_status == PC_STATUS_RIGHT || pc_status == PC_STATUS_LEFT)
redrawWinline(curwin, curwin->w_cursor.lnum);
else
screen_puts(pc_bytes, pc_row - msg_scrolled, pc_col, pc_attr);
}
}
/*
* Called when "$" is in 'cpoptions': display a '$' at the end of the changed
* text. Only works when cursor is in the line that changes.
*/
void
display_dollar(colnr_T col_arg)
{
colnr_T col = col_arg < 0 ? 0 : col_arg;
colnr_T save_col;
if (!redrawing())
return;
cursor_off();
save_col = curwin->w_cursor.col;
curwin->w_cursor.col = col;
if (has_mbyte)
{
char_u *p;
// If on the last byte of a multi-byte move to the first byte.
p = ml_get_curline();
curwin->w_cursor.col -= (*mb_head_off)(p, p + col);
}
curs_columns(FALSE); // recompute w_wrow and w_wcol
if (curwin->w_wcol < curwin->w_width)
{
edit_putchar('$', FALSE);
dollar_vcol = curwin->w_virtcol;
}
curwin->w_cursor.col = save_col;
}
/*
* Call this function before moving the cursor from the normal insert position
* in insert mode.
*/
void
undisplay_dollar(void)
{
if (dollar_vcol < 0)
return;
dollar_vcol = -1;
redrawWinline(curwin, curwin->w_cursor.lnum);
}
/*
* Truncate the space at the end of a line. This is to be used only in an
* insert mode. It handles fixing the replace stack for MODE_REPLACE and
* MODE_VREPLACE modes.
*/
void
truncate_spaces(char_u *line)
{
int i;
// find start of trailing white space
for (i = (int)STRLEN(line) - 1; i >= 0 && VIM_ISWHITE(line[i]); i--)
{
if (State & REPLACE_FLAG)
replace_join(0); // remove a NUL from the replace stack
}
line[i + 1] = NUL;
}
/*
* Backspace the cursor until the given column. Handles MODE_REPLACE and
* MODE_VREPLACE modes correctly. May also be used when not in insert mode at
* all. Will attempt not to go before "col" even when there is a composing
* character.
*/
void
backspace_until_column(int col)
{
while ((int)curwin->w_cursor.col > col)
{
curwin->w_cursor.col--;
if (State & REPLACE_FLAG)
replace_do_bs(col);
else if (!del_char_after_col(col))
break;
}
}
/*
* Like del_char(), but make sure not to go before column "limit_col".
* Only matters when there are composing characters.
* Return TRUE when something was deleted.
*/
static int
del_char_after_col(int limit_col UNUSED)
{
if (enc_utf8 && limit_col >= 0)
{
colnr_T ecol = curwin->w_cursor.col + 1;
// Make sure the cursor is at the start of a character, but
// skip forward again when going too far back because of a
// composing character.
mb_adjust_cursor();
while (curwin->w_cursor.col < (colnr_T)limit_col)
{
int l = utf_ptr2len(ml_get_cursor());
if (l == 0) // end of line
break;
curwin->w_cursor.col += l;
}
if (*ml_get_cursor() == NUL || curwin->w_cursor.col == ecol)
return FALSE;
del_bytes((long)((int)ecol - curwin->w_cursor.col), FALSE, TRUE);
}
else
(void)del_char(FALSE);
return TRUE;
}
/*
* Next character is interpreted literally.
* A one, two or three digit decimal number is interpreted as its byte value.
* If one or two digits are entered, the next character is given to vungetc().
* For Unicode a character > 255 may be returned.
* If "noReduceKeys" is TRUE do not change any modifyOtherKeys ESC sequence
* into a normal key, return ESC.
*/
int
get_literal(int noReduceKeys)
{
int cc;
int nc;
int i;
int hex = FALSE;
int octal = FALSE;
int unicode = 0;
if (got_int)
return Ctrl_C;
#ifdef FEAT_GUI
/*
* In GUI there is no point inserting the internal code for a special key.
* It is more useful to insert the string "<KEY>" instead. This would
* probably be useful in a text window too, but it would not be
* vi-compatible (maybe there should be an option for it?) -- webb
*/
if (gui.in_use)
{
++allow_keys;
if (noReduceKeys)
++no_reduce_keys;
}
#endif
#ifdef USE_ON_FLY_SCROLL
dont_scroll = TRUE; // disallow scrolling here
#endif
++no_mapping; // don't map the next key hits
cc = 0;
i = 0;
for (;;)
{
nc = plain_vgetc();
if ((nc == ESC || nc == CSI) && !noReduceKeys)
nc = decodeModifyOtherKeys(nc);
if ((mod_mask & ~MOD_MASK_SHIFT) != 0)
// A character with non-Shift modifiers should not be a valid
// character for i_CTRL-V_digit.
break;
if ((State & MODE_CMDLINE) == 0 && MB_BYTE2LEN_CHECK(nc) == 1)
add_to_showcmd(nc);
if (nc == 'x' || nc == 'X')
hex = TRUE;
else if (nc == 'o' || nc == 'O')
octal = TRUE;
else if (nc == 'u' || nc == 'U')
unicode = nc;
else
{
if (hex || unicode != 0)
{
if (!vim_isxdigit(nc))
break;
cc = cc * 16 + hex2nr(nc);
}
else if (octal)
{
if (nc < '0' || nc > '7')
break;
cc = cc * 8 + nc - '0';
}
else
{
if (!VIM_ISDIGIT(nc))
break;
cc = cc * 10 + nc - '0';
}
++i;
}
if (cc > 255 && unicode == 0)
cc = 255; // limit range to 0-255
nc = 0;
if (hex) // hex: up to two chars
{
if (i >= 2)
break;
}
else if (unicode) // Unicode: up to four or eight chars
{
if ((unicode == 'u' && i >= 4) || (unicode == 'U' && i >= 8))
break;
}
else if (i >= 3) // decimal or octal: up to three chars
break;
}
if (i == 0) // no number entered
{
if (nc == K_ZERO) // NUL is stored as NL
{
cc = '\n';
nc = 0;
}
else
{
cc = nc;
nc = 0;
}
}
if (cc == 0) // NUL is stored as NL
cc = '\n';
if (enc_dbcs && (cc & 0xff) == 0)
cc = '?'; // don't accept an illegal DBCS char, the NUL in the
// second byte will cause trouble!
--no_mapping;
#ifdef FEAT_GUI
if (gui.in_use)
{
--allow_keys;
if (noReduceKeys)
--no_reduce_keys;
}
#endif
if (nc)
{
vungetc(nc);
// A character typed with i_CTRL-V_digit cannot have modifiers.
mod_mask = 0;
}
got_int = FALSE; // CTRL-C typed after CTRL-V is not an interrupt
return cc;
}
/*
* Insert character, taking care of special keys and mod_mask
*/
static void
insert_special(
int c,
int allow_modmask,
int ctrlv) // c was typed after CTRL-V
{
char_u *p;
int len;
/*
* Special function key, translate into "<Key>". Up to the last '>' is
* inserted with ins_str(), so as not to replace characters in replace
* mode.
* Only use mod_mask for special keys, to avoid things like <S-Space>,
* unless 'allow_modmask' is TRUE.
*/
#if defined(MACOS_X) || defined(FEAT_GUI_GTK)
// Command-key never produces a normal key
if (mod_mask & MOD_MASK_CMD)
allow_modmask = TRUE;
#endif
if (IS_SPECIAL(c) || (mod_mask && allow_modmask))
{
p = get_special_key_name(c, mod_mask);
len = (int)STRLEN(p);
c = p[len - 1];
if (len > 2)
{
if (stop_arrow() == FAIL)
return;
p[len - 1] = NUL;
ins_str(p);
AppendToRedobuffLit(p, -1);
ctrlv = FALSE;
}
}
if (stop_arrow() == OK)
insertchar(c, ctrlv ? INSCHAR_CTRLV : 0, -1);
}
/*
* Special characters in this context are those that need processing other
* than the simple insertion that can be performed here. This includes ESC
* which terminates the insert, and CR/NL which need special processing to
* open up a new line. This routine tries to optimize insertions performed by
* the "redo", "undo" or "put" commands, so it needs to know when it should
* stop and defer processing to the "normal" mechanism.
* '0' and '^' are special, because they can be followed by CTRL-D.
*/
#define ISSPECIAL(c) ((c) < ' ' || (c) >= DEL || (c) == '0' || (c) == '^')
/*
* "flags": INSCHAR_FORMAT - force formatting
* INSCHAR_CTRLV - char typed just after CTRL-V
* INSCHAR_NO_FEX - don't use 'formatexpr'
*
* NOTE: passes the flags value straight through to internal_format() which,
* beside INSCHAR_FORMAT (above), is also looking for these:
* INSCHAR_DO_COM - format comments
* INSCHAR_COM_LIST - format comments with num list or 2nd line indent
*/
void
insertchar(
int c, // character to insert or NUL
int flags, // INSCHAR_FORMAT, etc.
int second_indent) // indent for second line if >= 0
{
int textwidth;
char_u *p;
int fo_ins_blank;
int force_format = flags & INSCHAR_FORMAT;
textwidth = comp_textwidth(force_format);
fo_ins_blank = has_format_option(FO_INS_BLANK);
/*
* Try to break the line in two or more pieces when:
* - Always do this if we have been called to do formatting only.
* - Always do this when 'formatoptions' has the 'a' flag and the line
* ends in white space.
* - Otherwise:
* - Don't do this if inserting a blank
* - Don't do this if an existing character is being replaced, unless
* we're in MODE_VREPLACE state.
* - Do this if the cursor is not on the line where insert started
* or - 'formatoptions' doesn't have 'l' or the line was not too long
* before the insert.
* - 'formatoptions' doesn't have 'b' or a blank was inserted at or
* before 'textwidth'
*/
if (textwidth > 0
&& (force_format
|| (!VIM_ISWHITE(c)
&& !((State & REPLACE_FLAG)
&& !(State & VREPLACE_FLAG)
&& *ml_get_cursor() != NUL)
&& (curwin->w_cursor.lnum != Insstart.lnum
|| ((!has_format_option(FO_INS_LONG)
|| Insstart_textlen <= (colnr_T)textwidth)
&& (!fo_ins_blank
|| Insstart_blank_vcol <= (colnr_T)textwidth
))))))
{
// Format with 'formatexpr' when it's set. Use internal formatting
// when 'formatexpr' isn't set or it returns non-zero.
#if defined(FEAT_EVAL)
int do_internal = TRUE;
colnr_T virtcol = get_nolist_virtcol()
+ char2cells(c != NUL ? c : gchar_cursor());
if (*curbuf->b_p_fex != NUL && (flags & INSCHAR_NO_FEX) == 0
&& (force_format || virtcol > (colnr_T)textwidth))
{
do_internal = (fex_format(curwin->w_cursor.lnum, 1L, c) != 0);
// It may be required to save for undo again, e.g. when setline()
// was called.
ins_need_undo = TRUE;
}
if (do_internal)
#endif
internal_format(textwidth, second_indent, flags, c == NUL, c);
}
if (c == NUL) // only formatting was wanted
return;
// Check whether this character should end a comment.
if (did_ai && c == end_comment_pending)
{
char_u *line;
char_u lead_end[COM_MAX_LEN]; // end-comment string
int middle_len, end_len;
int i;
/*
* Need to remove existing (middle) comment leader and insert end
* comment leader. First, check what comment leader we can find.
*/
i = get_leader_len(line = ml_get_curline(), &p, FALSE, TRUE);
if (i > 0 && vim_strchr(p, COM_MIDDLE) != NULL) // Just checking
{
// Skip middle-comment string
while (*p && p[-1] != ':') // find end of middle flags
++p;
middle_len = copy_option_part(&p, lead_end, COM_MAX_LEN, ",");
// Don't count trailing white space for middle_len
while (middle_len > 0 && VIM_ISWHITE(lead_end[middle_len - 1]))
--middle_len;
// Find the end-comment string
while (*p && p[-1] != ':') // find end of end flags
++p;
end_len = copy_option_part(&p, lead_end, COM_MAX_LEN, ",");
// Skip white space before the cursor
i = curwin->w_cursor.col;
while (--i >= 0 && VIM_ISWHITE(line[i]))
;
i++;
// Skip to before the middle leader
i -= middle_len;
// Check some expected things before we go on
if (i >= 0 && lead_end[end_len - 1] == end_comment_pending)
{
// Backspace over all the stuff we want to replace
backspace_until_column(i);
// Insert the end-comment string, except for the last
// character, which will get inserted as normal later.
ins_bytes_len(lead_end, end_len - 1);
}
}
}
end_comment_pending = NUL;
did_ai = FALSE;
did_si = FALSE;
can_si = FALSE;
can_si_back = FALSE;
/*
* If there's any pending input, grab up to INPUT_BUFLEN at once.
* This speeds up normal text input considerably.
* Don't do this when 'cindent' or 'indentexpr' is set, because we might
* need to re-indent at a ':', or any other character (but not what
* 'paste' is set)..
* Don't do this when there an InsertCharPre autocommand is defined,
* because we need to fire the event for every character.
* Do the check for InsertCharPre before the call to vpeekc() because the
* InsertCharPre autocommand could change the input buffer.
*/
#ifdef USE_ON_FLY_SCROLL
dont_scroll = FALSE; // allow scrolling here
#endif
if ( !ISSPECIAL(c)
&& (!has_mbyte || (*mb_char2len)(c) == 1)
&& !has_insertcharpre()
&& vpeekc() != NUL
&& !(State & REPLACE_FLAG)
&& !cindent_on()
#ifdef FEAT_RIGHTLEFT
&& !p_ri
#endif
)
{
#define INPUT_BUFLEN 100
char_u buf[INPUT_BUFLEN + 1];
int i;
colnr_T virtcol = 0;
buf[0] = c;
i = 1;
if (textwidth > 0)
virtcol = get_nolist_virtcol();
/*
* Stop the string when:
* - no more chars available
* - finding a special character (command key)
* - buffer is full
* - running into the 'textwidth' boundary
* - need to check for abbreviation: A non-word char after a word-char
*/
while ( (c = vpeekc()) != NUL
&& !ISSPECIAL(c)
&& (!has_mbyte || MB_BYTE2LEN_CHECK(c) == 1)
&& i < INPUT_BUFLEN
&& (textwidth == 0
|| (virtcol += byte2cells(buf[i - 1])) < (colnr_T)textwidth)
&& !(!no_abbr && !vim_iswordc(c) && vim_iswordc(buf[i - 1])))
{
#ifdef FEAT_RIGHTLEFT
c = vgetc();
if (p_hkmap && KeyTyped)
c = hkmap(c); // Hebrew mode mapping
buf[i++] = c;
#else
buf[i++] = vgetc();
#endif
}
#ifdef FEAT_DIGRAPHS
do_digraph(-1); // clear digraphs
do_digraph(buf[i-1]); // may be the start of a digraph
#endif
buf[i] = NUL;
ins_str(buf);
if (flags & INSCHAR_CTRLV)
{
redo_literal(*buf);
i = 1;
}
else
i = 0;
if (buf[i] != NUL)
AppendToRedobuffLit(buf + i, -1);
}
else
{
int cc;
if (has_mbyte && (cc = (*mb_char2len)(c)) > 1)
{
char_u buf[MB_MAXBYTES + 1];
(*mb_char2bytes)(c, buf);
buf[cc] = NUL;
ins_char_bytes(buf, cc);
AppendCharToRedobuff(c);
}
else
{
ins_char(c);
if (flags & INSCHAR_CTRLV)
redo_literal(c);
else
AppendCharToRedobuff(c);
}
}
}
/*
* Put a character in the redo buffer, for when just after a CTRL-V.
*/
static void
redo_literal(int c)
{
char_u buf[10];
// Only digits need special treatment. Translate them into a string of
// three digits.
if (VIM_ISDIGIT(c))
{
vim_snprintf((char *)buf, sizeof(buf), "%03d", c);
AppendToRedobuff(buf);
}
else
AppendCharToRedobuff(c);
}
/*
* start_arrow() is called when an arrow key is used in insert mode.
* For undo/redo it resembles hitting the <ESC> key.
*/
void
start_arrow(
pos_T *end_insert_pos) // can be NULL
{
start_arrow_common(end_insert_pos, TRUE);
}
/*
* Like start_arrow() but with end_change argument.
* Will prepare for redo of CTRL-G U if "end_change" is FALSE.
*/
static void
start_arrow_with_change(
pos_T *end_insert_pos, // can be NULL
int end_change) // end undoable change
{
start_arrow_common(end_insert_pos, end_change);
if (!end_change)
{
AppendCharToRedobuff(Ctrl_G);
AppendCharToRedobuff('U');
}
}
static void
start_arrow_common(
pos_T *end_insert_pos, // can be NULL
int end_change) // end undoable change
{
if (!arrow_used && end_change) // something has been inserted
{
AppendToRedobuff(ESC_STR);
stop_insert(end_insert_pos, FALSE, FALSE);
arrow_used = TRUE; // this means we stopped the current insert
}
#ifdef FEAT_SPELL
check_spell_redraw();
#endif
}
#ifdef FEAT_SPELL
/*
* If we skipped highlighting word at cursor, do it now.
* It may be skipped again, thus reset spell_redraw_lnum first.
*/
static void
check_spell_redraw(void)
{
if (spell_redraw_lnum != 0)
{
linenr_T lnum = spell_redraw_lnum;
spell_redraw_lnum = 0;
redrawWinline(curwin, lnum);
}
}
#endif
/*
* stop_arrow() is called before a change is made in insert mode.
* If an arrow key has been used, start a new insertion.
* Returns FAIL if undo is impossible, shouldn't insert then.
*/
int
stop_arrow(void)
{
if (arrow_used)
{
Insstart = curwin->w_cursor; // new insertion starts here
if (Insstart.col > Insstart_orig.col && !ins_need_undo)
// Don't update the original insert position when moved to the
// right, except when nothing was inserted yet.
update_Insstart_orig = FALSE;
Insstart_textlen = (colnr_T)linetabsize_str(ml_get_curline());
if (u_save_cursor() == OK)
{
arrow_used = FALSE;
ins_need_undo = FALSE;
}
ai_col = 0;
if (State & VREPLACE_FLAG)
{
orig_line_count = curbuf->b_ml.ml_line_count;
vr_lines_changed = 1;
}
ResetRedobuff();
AppendToRedobuff((char_u *)"1i"); // pretend we start an insertion
new_insert_skip = 2;
}
else if (ins_need_undo)
{
if (u_save_cursor() == OK)
ins_need_undo = FALSE;
}
#ifdef FEAT_FOLDING
// Always open fold at the cursor line when inserting something.
foldOpenCursor();
#endif
return (arrow_used || ins_need_undo ? FAIL : OK);
}
/*
* Do a few things to stop inserting.
* "end_insert_pos" is where insert ended. It is NULL when we already jumped
* to another window/buffer.
*/
static void
stop_insert(
pos_T *end_insert_pos,
int esc, // called by ins_esc()
int nomove) // <c-\><c-o>, don't move cursor
{
int cc;
char_u *ptr;
stop_redo_ins();
replace_flush(); // abandon replace stack
/*
* Save the inserted text for later redo with ^@ and CTRL-A.
* Don't do it when "restart_edit" was set and nothing was inserted,
* otherwise CTRL-O w and then <Left> will clear "last_insert".
*/
ptr = get_inserted();
int added = ptr == NULL ? 0 : (int)STRLEN(ptr) - new_insert_skip;
if (did_restart_edit == 0 || added > 0)
{
vim_free(last_insert);
last_insert = ptr;
last_insert_skip = added < 0 ? 0 : new_insert_skip;
}
else
vim_free(ptr);
if (!arrow_used && end_insert_pos != NULL)
{
// Auto-format now. It may seem strange to do this when stopping an
// insertion (or moving the cursor), but it's required when appending
// a line and having it end in a space. But only do it when something
// was actually inserted, otherwise undo won't work.
if (!ins_need_undo && has_format_option(FO_AUTO))
{
pos_T tpos = curwin->w_cursor;
// When the cursor is at the end of the line after a space the
// formatting will move it to the following word. Avoid that by
// moving the cursor onto the space.
cc = 'x';
if (curwin->w_cursor.col > 0 && gchar_cursor() == NUL)
{
dec_cursor();
cc = gchar_cursor();
if (!VIM_ISWHITE(cc))
curwin->w_cursor = tpos;
}
auto_format(TRUE, FALSE);
if (VIM_ISWHITE(cc))
{
if (gchar_cursor() != NUL)
inc_cursor();
// If the cursor is still at the same character, also keep
// the "coladd".
if (gchar_cursor() == NUL
&& curwin->w_cursor.lnum == tpos.lnum
&& curwin->w_cursor.col == tpos.col)
curwin->w_cursor.coladd = tpos.coladd;
}
}
// If a space was inserted for auto-formatting, remove it now.
check_auto_format(TRUE);
// If we just did an auto-indent, remove the white space from the end
// of the line, and put the cursor back.
// Do this when ESC was used or moving the cursor up/down.
// Check for the old position still being valid, just in case the text
// got changed unexpectedly.
if (!nomove && did_ai && (esc || (vim_strchr(p_cpo, CPO_INDENT) == NULL
&& curwin->w_cursor.lnum != end_insert_pos->lnum))
&& end_insert_pos->lnum <= curbuf->b_ml.ml_line_count)
{
pos_T tpos = curwin->w_cursor;
curwin->w_cursor = *end_insert_pos;
check_cursor_col(); // make sure it is not past the line
for (;;)
{
if (gchar_cursor() == NUL && curwin->w_cursor.col > 0)
--curwin->w_cursor.col;
cc = gchar_cursor();
if (!VIM_ISWHITE(cc))
break;
if (del_char(TRUE) == FAIL)
break; // should not happen
}
if (curwin->w_cursor.lnum != tpos.lnum)
curwin->w_cursor = tpos;
else
{
// reset tpos, could have been invalidated in the loop above
tpos = curwin->w_cursor;
tpos.col++;
if (cc != NUL && gchar_pos(&tpos) == NUL)
++curwin->w_cursor.col; // put cursor back on the NUL
}
// <C-S-Right> may have started Visual mode, adjust the position for
// deleted characters.
if (VIsual_active)
check_visual_pos();
}
}
did_ai = FALSE;
did_si = FALSE;
can_si = FALSE;
can_si_back = FALSE;
// Set '[ and '] to the inserted text. When end_insert_pos is NULL we are
// now in a different buffer.
if (end_insert_pos != NULL)
{
curbuf->b_op_start = Insstart;
curbuf->b_op_start_orig = Insstart_orig;
curbuf->b_op_end = *end_insert_pos;
}
}
/*
* Set the last inserted text to a single character.
* Used for the replace command.
*/
void
set_last_insert(int c)
{
char_u *s;
vim_free(last_insert);
last_insert = alloc(MB_MAXBYTES * 3 + 5);
if (last_insert == NULL)
return;
s = last_insert;
// Use the CTRL-V only when entering a special char
if (c < ' ' || c == DEL)
*s++ = Ctrl_V;
s = add_char2buf(c, s);
*s++ = ESC;
*s++ = NUL;
last_insert_skip = 0;
}
#if defined(EXITFREE) || defined(PROTO)
void
free_last_insert(void)
{
VIM_CLEAR(last_insert);
}
#endif
/*
* Add character "c" to buffer "s". Escape the special meaning of K_SPECIAL
* and CSI. Handle multi-byte characters.
* Returns a pointer to after the added bytes.
*/
char_u *
add_char2buf(int c, char_u *s)
{
char_u temp[MB_MAXBYTES + 1];
int i;
int len;
len = (*mb_char2bytes)(c, temp);
for (i = 0; i < len; ++i)
{
c = temp[i];
// Need to escape K_SPECIAL and CSI like in the typeahead buffer.
if (c == K_SPECIAL)
{
*s++ = K_SPECIAL;
*s++ = KS_SPECIAL;
*s++ = KE_FILLER;
}
#ifdef FEAT_GUI
else if (c == CSI)
{
*s++ = CSI;
*s++ = KS_EXTRA;
*s++ = (int)KE_CSI;
}
#endif
else
*s++ = c;
}
return s;
}
/*
* move cursor to start of line
* if flags & BL_WHITE move to first non-white
* if flags & BL_SOL move to first non-white if startofline is set,
* otherwise keep "curswant" column
* if flags & BL_FIX don't leave the cursor on a NUL.
*/
void
beginline(int flags)
{
if ((flags & BL_SOL) && !p_sol)
coladvance(curwin->w_curswant);
else
{
curwin->w_cursor.col = 0;
curwin->w_cursor.coladd = 0;
if (flags & (BL_WHITE | BL_SOL))
{
char_u *ptr;
for (ptr = ml_get_curline(); VIM_ISWHITE(*ptr)
&& !((flags & BL_FIX) && ptr[1] == NUL); ++ptr)
++curwin->w_cursor.col;
}
curwin->w_set_curswant = TRUE;
}
adjust_skipcol();
}
/*
* oneright oneleft cursor_down cursor_up
*
* Move one char {right,left,down,up}.
* Doesn't move onto the NUL past the end of the line, unless it is allowed.
* Return OK when successful, FAIL when we hit a line of file boundary.
*/
int
oneright(void)
{
char_u *ptr;
int l;
if (virtual_active())
{
pos_T prevpos = curwin->w_cursor;
// Adjust for multi-wide char (excluding TAB)
ptr = ml_get_cursor();
coladvance(getviscol() + ((*ptr != TAB
&& vim_isprintc((*mb_ptr2char)(ptr)))
? ptr2cells(ptr) : 1));
curwin->w_set_curswant = TRUE;
// Return OK if the cursor moved, FAIL otherwise (at window edge).
return (prevpos.col != curwin->w_cursor.col
|| prevpos.coladd != curwin->w_cursor.coladd) ? OK : FAIL;
}
ptr = ml_get_cursor();
if (*ptr == NUL)
return FAIL; // already at the very end
if (has_mbyte)
l = (*mb_ptr2len)(ptr);
else
l = 1;
// move "l" bytes right, but don't end up on the NUL, unless 'virtualedit'
// contains "onemore".
if (ptr[l] == NUL && (get_ve_flags() & VE_ONEMORE) == 0)
return FAIL;
curwin->w_cursor.col += l;
curwin->w_set_curswant = TRUE;
adjust_skipcol();
return OK;
}
int
oneleft(void)
{
if (virtual_active())
{
#ifdef FEAT_LINEBREAK
int width;
#endif
int v = getviscol();
if (v == 0)
return FAIL;
#ifdef FEAT_LINEBREAK
// We might get stuck on 'showbreak', skip over it.
width = 1;
for (;;)
{
coladvance(v - width);
// getviscol() is slow, skip it when 'showbreak' is empty,
// 'breakindent' is not set and there are no multi-byte
// characters
if ((*get_showbreak_value(curwin) == NUL && !curwin->w_p_bri
&& !has_mbyte) || getviscol() < v)
break;
++width;
}
#else
coladvance(v - 1);
#endif
if (curwin->w_cursor.coladd == 1)
{
char_u *ptr;
// Adjust for multi-wide char (not a TAB)
ptr = ml_get_cursor();
if (*ptr != TAB && vim_isprintc((*mb_ptr2char)(ptr))
&& ptr2cells(ptr) > 1)
curwin->w_cursor.coladd = 0;
}
curwin->w_set_curswant = TRUE;
adjust_skipcol();
return OK;
}
if (curwin->w_cursor.col == 0)
return FAIL;
curwin->w_set_curswant = TRUE;
--curwin->w_cursor.col;
// if the character on the left of the current cursor is a multi-byte
// character, move to its first byte
if (has_mbyte)
mb_adjust_cursor();
adjust_skipcol();
return OK;
}
/*
* Move the cursor up "n" lines in window "wp".
* Takes care of closed folds.
*/
void
cursor_up_inner(win_T *wp, long n)
{
linenr_T lnum = wp->w_cursor.lnum;
if (n >= lnum)
lnum = 1;
else
#ifdef FEAT_FOLDING
if (hasAnyFolding(wp))
{
/*
* Count each sequence of folded lines as one logical line.
*/
// go to the start of the current fold
(void)hasFoldingWin(wp, lnum, &lnum, NULL, TRUE, NULL);
while (n--)
{
// move up one line
--lnum;
if (lnum <= 1)
break;
// If we entered a fold, move to the beginning, unless in
// Insert mode or when 'foldopen' contains "all": it will open
// in a moment.
if (n > 0 || !((State & MODE_INSERT) || (fdo_flags & FDO_ALL)))
(void)hasFoldingWin(wp, lnum, &lnum, NULL, TRUE, NULL);
}
if (lnum < 1)
lnum = 1;
}
else
#endif
lnum -= n;
wp->w_cursor.lnum = lnum;
}
int
cursor_up(
long n,
int upd_topline) // When TRUE: update topline
{
// This fails if the cursor is already in the first line or the count is
// larger than the line number and '-' is in 'cpoptions'
linenr_T lnum = curwin->w_cursor.lnum;
if (n > 0 && (lnum <= 1
|| (n >= lnum && vim_strchr(p_cpo, CPO_MINUS) != NULL)))
return FAIL;
cursor_up_inner(curwin, n);
// try to advance to the column we want to be at
coladvance(curwin->w_curswant);
if (upd_topline)
update_topline(); // make sure curwin->w_topline is valid
return OK;
}
/*
* Move the cursor down "n" lines in window "wp".
* Takes care of closed folds.
*/
void
cursor_down_inner(win_T *wp, long n)
{
linenr_T lnum = wp->w_cursor.lnum;
linenr_T line_count = wp->w_buffer->b_ml.ml_line_count;
if (lnum + n >= line_count)
lnum = line_count;
else
#ifdef FEAT_FOLDING
if (hasAnyFolding(wp))
{
linenr_T last;
// count each sequence of folded lines as one logical line
while (n--)
{
// Move to last line of fold, will fail if it's the end-of-file.
if (hasFoldingWin(wp, lnum, NULL, &last, TRUE, NULL))
lnum = last + 1;
else
++lnum;
if (lnum >= line_count)
break;
}
if (lnum > line_count)
lnum = line_count;
}
else
#endif
lnum += n;
wp->w_cursor.lnum = lnum;
}
/*
* Cursor down a number of logical lines.
*/
int
cursor_down(
long n,
int upd_topline) // When TRUE: update topline
{
linenr_T lnum = curwin->w_cursor.lnum;
linenr_T line_count = curwin->w_buffer->b_ml.ml_line_count;
// This fails if the cursor is already in the last line or would move
// beyond the last line and '-' is in 'cpoptions'
if (n > 0
&& (lnum >= line_count
|| (lnum + n > line_count
&& vim_strchr(p_cpo, CPO_MINUS) != NULL)))
return FAIL;
cursor_down_inner(curwin, n);
// try to advance to the column we want to be at
coladvance(curwin->w_curswant);
if (upd_topline)
update_topline(); // make sure curwin->w_topline is valid
return OK;
}
/*
* Stuff the last inserted text in the read buffer.
* Last_insert actually is a copy of the redo buffer, so we
* first have to remove the command.
*/
int
stuff_inserted(
int c, // Command character to be inserted
long count, // Repeat this many times
int no_esc) // Don't add an ESC at the end
{
char_u *esc_ptr;
char_u *ptr;
char_u *last_ptr;
char_u last = NUL;
ptr = get_last_insert();
if (ptr == NULL)
{
emsg(_(e_no_inserted_text_yet));
return FAIL;
}
// may want to stuff the command character, to start Insert mode
if (c != NUL)
stuffcharReadbuff(c);
if ((esc_ptr = vim_strrchr(ptr, ESC)) != NULL)
*esc_ptr = NUL; // remove the ESC
// when the last char is either "0" or "^" it will be quoted if no ESC
// comes after it OR if it will inserted more than once and "ptr"
// starts with ^D. -- Acevedo
last_ptr = (esc_ptr ? esc_ptr : ptr + STRLEN(ptr)) - 1;
if (last_ptr >= ptr && (*last_ptr == '0' || *last_ptr == '^')
&& (no_esc || (*ptr == Ctrl_D && count > 1)))
{
last = *last_ptr;
*last_ptr = NUL;
}
do
{
stuffReadbuff(ptr);
// a trailing "0" is inserted as "<C-V>048", "^" as "<C-V>^"
if (last)
stuffReadbuff(
(char_u *)(last == '0' ? "\026\060\064\070" : "\026^"));
}
while (--count > 0);
if (last)
*last_ptr = last;
if (esc_ptr != NULL)
*esc_ptr = ESC; // put the ESC back
// may want to stuff a trailing ESC, to get out of Insert mode
if (!no_esc)
stuffcharReadbuff(ESC);
return OK;
}
char_u *
get_last_insert(void)
{
if (last_insert == NULL)
return NULL;
return last_insert + last_insert_skip;
}
/*
* Get last inserted string, and remove trailing <Esc>.
* Returns pointer to allocated memory (must be freed) or NULL.
*/
char_u *
get_last_insert_save(void)
{
char_u *s;
int len;
if (last_insert == NULL)
return NULL;
s = vim_strsave(last_insert + last_insert_skip);
if (s == NULL)
return NULL;
len = (int)STRLEN(s);
if (len > 0 && s[len - 1] == ESC) // remove trailing ESC
s[len - 1] = NUL;
return s;
}
/*
* Check the word in front of the cursor for an abbreviation.
* Called when the non-id character "c" has been entered.
* When an abbreviation is recognized it is removed from the text and
* the replacement string is inserted in typebuf.tb_buf[], followed by "c".
*/
static int
echeck_abbr(int c)
{
// Don't check for abbreviation in paste mode, when disabled and just
// after moving around with cursor keys.
if (p_paste || no_abbr || arrow_used)
return FALSE;
return check_abbr(c, ml_get_curline(), curwin->w_cursor.col,
curwin->w_cursor.lnum == Insstart.lnum ? Insstart.col : 0);
}
/*
* replace-stack functions
*
* When replacing characters, the replaced characters are remembered for each
* new character. This is used to re-insert the old text when backspacing.
*
* There is a NUL headed list of characters for each character that is
* currently in the file after the insertion point. When BS is used, one NUL
* headed list is put back for the deleted character.
*
* For a newline, there are two NUL headed lists. One contains the characters
* that the NL replaced. The extra one stores the characters after the cursor
* that were deleted (always white space).
*
* Replace_offset is normally 0, in which case replace_push will add a new
* character at the end of the stack. If replace_offset is not 0, that many
* characters will be left on the stack above the newly inserted character.
*/
static char_u *replace_stack = NULL;
static long replace_stack_nr = 0; // next entry in replace stack
static long replace_stack_len = 0; // max. number of entries
void
replace_push(
int c) // character that is replaced (NUL is none)
{
char_u *p;
if (replace_stack_nr < replace_offset) // nothing to do
return;
if (replace_stack_len <= replace_stack_nr)
{
replace_stack_len += 50;
p = ALLOC_MULT(char_u, replace_stack_len);
if (p == NULL) // out of memory
{
replace_stack_len -= 50;
return;
}
if (replace_stack != NULL)
{
mch_memmove(p, replace_stack,
(size_t)(replace_stack_nr * sizeof(char_u)));
vim_free(replace_stack);
}
replace_stack = p;
}
p = replace_stack + replace_stack_nr - replace_offset;
if (replace_offset)
mch_memmove(p + 1, p, (size_t)(replace_offset * sizeof(char_u)));
*p = c;
++replace_stack_nr;
}
/*
* Push a character onto the replace stack. Handles a multi-byte character in
* reverse byte order, so that the first byte is popped off first.
* Return the number of bytes done (includes composing characters).
*/
int
replace_push_mb(char_u *p)
{
int l = (*mb_ptr2len)(p);
int j;
for (j = l - 1; j >= 0; --j)
replace_push(p[j]);
return l;
}
/*
* Pop one item from the replace stack.
* return -1 if stack empty
* return replaced character or NUL otherwise
*/
static int
replace_pop(void)
{
if (replace_stack_nr == 0)
return -1;
return (int)replace_stack[--replace_stack_nr];
}
/*
* Join the top two items on the replace stack. This removes to "off"'th NUL
* encountered.
*/
void
replace_join(
int off) // offset for which NUL to remove
{
int i;
for (i = replace_stack_nr; --i >= 0; )
if (replace_stack[i] == NUL && off-- <= 0)
{
--replace_stack_nr;
mch_memmove(replace_stack + i, replace_stack + i + 1,
(size_t)(replace_stack_nr - i));
return;
}
}
/*
* Pop bytes from the replace stack until a NUL is found, and insert them
* before the cursor. Can only be used in MODE_REPLACE or MODE_VREPLACE state.
*/
static void
replace_pop_ins(void)
{
int cc;
int oldState = State;
State = MODE_NORMAL; // don't want MODE_REPLACE here
while ((cc = replace_pop()) > 0)
{
mb_replace_pop_ins(cc);
dec_cursor();
}
State = oldState;
}
/*
* Insert bytes popped from the replace stack. "cc" is the first byte. If it
* indicates a multi-byte char, pop the other bytes too.
*/
static void
mb_replace_pop_ins(int cc)
{
int n;
char_u buf[MB_MAXBYTES + 1];
int i;
int c;
if (has_mbyte && (n = MB_BYTE2LEN(cc)) > 1)
{
buf[0] = cc;
for (i = 1; i < n; ++i)
buf[i] = replace_pop();
ins_bytes_len(buf, n);
}
else
ins_char(cc);
if (enc_utf8)
// Handle composing chars.
for (;;)
{
c = replace_pop();
if (c == -1) // stack empty
break;
if ((n = MB_BYTE2LEN(c)) == 1)
{
// Not a multi-byte char, put it back.
replace_push(c);
break;
}
buf[0] = c;
for (i = 1; i < n; ++i)
buf[i] = replace_pop();
if (utf_iscomposing(utf_ptr2char(buf)))
ins_bytes_len(buf, n);
else
{
// Not a composing char, put it back.
for (i = n - 1; i >= 0; --i)
replace_push(buf[i]);
break;
}
}
}
/*
* make the replace stack empty
* (called when exiting replace mode)
*/
static void
replace_flush(void)
{
VIM_CLEAR(replace_stack);
replace_stack_len = 0;
replace_stack_nr = 0;
}
/*
* Handle doing a BS for one character.
* cc < 0: replace stack empty, just move cursor
* cc == 0: character was inserted, delete it
* cc > 0: character was replaced, put cc (first byte of original char) back
* and check for more characters to be put back
* When "limit_col" is >= 0, don't delete before this column. Matters when
* using composing characters, use del_char_after_col() instead of del_char().
*/
static void
replace_do_bs(int limit_col)
{
int cc;
int orig_len = 0;
int ins_len;
int orig_vcols = 0;
colnr_T start_vcol;
char_u *p;
int i;
int vcol;
cc = replace_pop();
if (cc > 0)
{
#ifdef FEAT_PROP_POPUP
size_t len_before = 0; // init to shut up GCC
if (curbuf->b_has_textprop)
{
// Do not adjust text properties for individual delete and insert
// operations, do it afterwards on the resulting text.
len_before = ml_get_curline_len();
++text_prop_frozen;
}
#endif
if (State & VREPLACE_FLAG)
{
// Get the number of screen cells used by the character we are
// going to delete.
getvcol(curwin, &curwin->w_cursor, NULL, &start_vcol, NULL);
orig_vcols = chartabsize(ml_get_cursor(), start_vcol);
}
if (has_mbyte)
{
(void)del_char_after_col(limit_col);
if (State & VREPLACE_FLAG)
orig_len = ml_get_cursor_len();
replace_push(cc);
}
else
{
pchar_cursor(cc);
if (State & VREPLACE_FLAG)
orig_len = ml_get_cursor_len() - 1;
}
replace_pop_ins();
if (State & VREPLACE_FLAG)
{
// Get the number of screen cells used by the inserted characters
p = ml_get_cursor();
ins_len = ml_get_cursor_len() - orig_len;
vcol = start_vcol;
for (i = 0; i < ins_len; ++i)
{
vcol += chartabsize(p + i, vcol);
i += (*mb_ptr2len)(p) - 1;
}
vcol -= start_vcol;
// Delete spaces that were inserted after the cursor to keep the
// text aligned.
curwin->w_cursor.col += ins_len;
while (vcol > orig_vcols && gchar_cursor() == ' ')
{
del_char(FALSE);
++orig_vcols;
}
curwin->w_cursor.col -= ins_len;
}
// mark the buffer as changed and prepare for displaying
changed_bytes(curwin->w_cursor.lnum, curwin->w_cursor.col);
#ifdef FEAT_PROP_POPUP
if (curbuf->b_has_textprop)
{
size_t len_now = ml_get_curline_len();
--text_prop_frozen;
adjust_prop_columns(curwin->w_cursor.lnum, curwin->w_cursor.col,
(int)(len_now - len_before), 0);
}
#endif
}
else if (cc == 0)
(void)del_char_after_col(limit_col);
}
#if defined(FEAT_RIGHTLEFT) || defined(PROTO)
/*
* Map Hebrew keyboard when in hkmap mode.
*/
int
hkmap(int c)
{
if (p_hkmapp) // phonetic mapping, by Ilya Dogolazky
{
enum {hALEF=0, BET, GIMEL, DALET, HEI, VAV, ZAIN, HET, TET, IUD,
KAFsofit, hKAF, LAMED, MEMsofit, MEM, NUNsofit, NUN, SAMEH, AIN,
PEIsofit, PEI, ZADIsofit, ZADI, KOF, RESH, hSHIN, TAV};
static char_u map[26] =
{(char_u)hALEF/*a*/, (char_u)BET /*b*/, (char_u)hKAF /*c*/,
(char_u)DALET/*d*/, (char_u)-1 /*e*/, (char_u)PEIsofit/*f*/,
(char_u)GIMEL/*g*/, (char_u)HEI /*h*/, (char_u)IUD /*i*/,
(char_u)HET /*j*/, (char_u)KOF /*k*/, (char_u)LAMED /*l*/,
(char_u)MEM /*m*/, (char_u)NUN /*n*/, (char_u)SAMEH /*o*/,
(char_u)PEI /*p*/, (char_u)-1 /*q*/, (char_u)RESH /*r*/,
(char_u)ZAIN /*s*/, (char_u)TAV /*t*/, (char_u)TET /*u*/,
(char_u)VAV /*v*/, (char_u)hSHIN/*w*/, (char_u)-1 /*x*/,
(char_u)AIN /*y*/, (char_u)ZADI /*z*/};
if (c == 'N' || c == 'M' || c == 'P' || c == 'C' || c == 'Z')
return (int)(map[CharOrd(c)] - 1 + p_aleph);
// '-1'='sofit'
else if (c == 'x')
return 'X';
else if (c == 'q')
return '\''; // {geresh}={'}
else if (c == 246)
return ' '; // \"o --> ' ' for a german keyboard
else if (c == 228)
return ' '; // \"a --> ' ' -- / --
else if (c == 252)
return ' '; // \"u --> ' ' -- / --
// NOTE: islower() does not do the right thing for us on Linux so we
// do this the same was as 5.7 and previous, so it works correctly on
// all systems. Specifically, the e.g. Delete and Arrow keys are
// munged and won't work if e.g. searching for Hebrew text.
else if (c >= 'a' && c <= 'z')
return (int)(map[CharOrdLow(c)] + p_aleph);
else
return c;
}
else
{
switch (c)
{
case '`': return ';';
case '/': return '.';
case '\'': return ',';
case 'q': return '/';
case 'w': return '\'';
// Hebrew letters - set offset from 'a'
case ',': c = '{'; break;
case '.': c = 'v'; break;
case ';': c = 't'; break;
default: {
static char str[] = "zqbcxlsjphmkwonu ydafe rig";
if (c < 'a' || c > 'z')
return c;
c = str[CharOrdLow(c)];
break;
}
}
return (int)(CharOrdLow(c) + p_aleph);
}
}
#endif
static void
ins_reg(void)
{
int need_redraw = FALSE;
int regname;
int literally = 0;
int vis_active = VIsual_active;
/*
* If we are going to wait for a character, show a '"'.
*/
pc_status = PC_STATUS_UNSET;
if (redrawing() && !char_avail())
{
// may need to redraw when no more chars available now
ins_redraw(FALSE);
edit_putchar('"', TRUE);
add_to_showcmd_c(Ctrl_R);
}
#ifdef USE_ON_FLY_SCROLL
dont_scroll = TRUE; // disallow scrolling here
#endif
/*
* Don't map the register name. This also prevents the mode message to be
* deleted when ESC is hit.
*/
++no_mapping;
++allow_keys;
regname = plain_vgetc();
LANGMAP_ADJUST(regname, TRUE);
if (regname == Ctrl_R || regname == Ctrl_O || regname == Ctrl_P)
{
// Get a third key for literal register insertion
literally = regname;
add_to_showcmd_c(literally);
regname = plain_vgetc();
LANGMAP_ADJUST(regname, TRUE);
}
--no_mapping;
--allow_keys;
#ifdef FEAT_EVAL
// Don't call u_sync() while typing the expression or giving an error
// message for it. Only call it explicitly.
++no_u_sync;
if (regname == '=')
{
pos_T curpos = curwin->w_cursor;
# ifdef HAVE_INPUT_METHOD
int im_on = im_get_status();
# endif
// Sync undo when evaluating the expression calls setline() or
// append(), so that it can be undone separately.
u_sync_once = 2;
regname = get_expr_register();
// Cursor may be moved back a column.
curwin->w_cursor = curpos;
check_cursor();
# ifdef HAVE_INPUT_METHOD
// Restore the Input Method.
if (im_on)
im_set_active(TRUE);
# endif
}
if (regname == NUL || !valid_yank_reg(regname, FALSE))
{
vim_beep(BO_REG);
need_redraw = TRUE; // remove the '"'
}
else
{
#endif
if (literally == Ctrl_O || literally == Ctrl_P)
{
// Append the command to the redo buffer.
AppendCharToRedobuff(Ctrl_R);
AppendCharToRedobuff(literally);
AppendCharToRedobuff(regname);
do_put(regname, NULL, BACKWARD, 1L,
(literally == Ctrl_P ? PUT_FIXINDENT : 0) | PUT_CURSEND);
}
else if (insert_reg(regname, literally) == FAIL)
{
vim_beep(BO_REG);
need_redraw = TRUE; // remove the '"'
}
else if (stop_insert_mode)
// When the '=' register was used and a function was invoked that
// did ":stopinsert" then stuff_empty() returns FALSE but we won't
// insert anything, need to remove the '"'
need_redraw = TRUE;
#ifdef FEAT_EVAL
}
--no_u_sync;
if (u_sync_once == 1)
ins_need_undo = TRUE;
u_sync_once = 0;
#endif
clear_showcmd();
// If the inserted register is empty, we need to remove the '"'
if (need_redraw || stuff_empty())
edit_unputchar();
// Disallow starting Visual mode here, would get a weird mode.
if (!vis_active && VIsual_active)
end_visual_mode();
}
/*
* CTRL-G commands in Insert mode.
*/
static void
ins_ctrl_g(void)
{
int c;
// Right after CTRL-X the cursor will be after the ruler.
setcursor();
/*
* Don't map the second key. This also prevents the mode message to be
* deleted when ESC is hit.
*/
++no_mapping;
++allow_keys;
c = plain_vgetc();
--no_mapping;
--allow_keys;
switch (c)
{
// CTRL-G k and CTRL-G <Up>: cursor up to Insstart.col
case K_UP:
case Ctrl_K:
case 'k': ins_up(TRUE);
break;
// CTRL-G j and CTRL-G <Down>: cursor down to Insstart.col
case K_DOWN:
case Ctrl_J:
case 'j': ins_down(TRUE);
break;
// CTRL-G u: start new undoable edit
case 'u': u_sync(TRUE);
ins_need_undo = TRUE;
// Need to reset Insstart, esp. because a BS that joins
// a line to the previous one must save for undo.
update_Insstart_orig = FALSE;
Insstart = curwin->w_cursor;
break;
// CTRL-G U: do not break undo with the next char
case 'U':
// Allow one left/right cursor movement with the next char,
// without breaking undo.
dont_sync_undo = MAYBE;
break;
case ESC:
// Esc after CTRL-G cancels it.
break;
// Unknown CTRL-G command, reserved for future expansion.
default: vim_beep(BO_CTRLG);
}
}
/*
* CTRL-^ in Insert mode.
*/
static void
ins_ctrl_hat(void)
{
if (map_to_exists_mode((char_u *)"", MODE_LANGMAP, FALSE))
{
// ":lmap" mappings exists, Toggle use of ":lmap" mappings.
if (State & MODE_LANGMAP)
{
curbuf->b_p_iminsert = B_IMODE_NONE;
State &= ~MODE_LANGMAP;
}
else
{
curbuf->b_p_iminsert = B_IMODE_LMAP;
State |= MODE_LANGMAP;
#ifdef HAVE_INPUT_METHOD
im_set_active(FALSE);
#endif
}
}
#ifdef HAVE_INPUT_METHOD
else
{
// There are no ":lmap" mappings, toggle IM
if (im_get_status())
{
curbuf->b_p_iminsert = B_IMODE_NONE;
im_set_active(FALSE);
}
else
{
curbuf->b_p_iminsert = B_IMODE_IM;
State &= ~MODE_LANGMAP;
im_set_active(TRUE);
}
}
#endif
set_iminsert_global();
showmode();
#ifdef FEAT_GUI
// may show different cursor shape or color
if (gui.in_use)
gui_update_cursor(TRUE, FALSE);
#endif
#if defined(FEAT_KEYMAP)
// Show/unshow value of 'keymap' in status lines.
status_redraw_curbuf();
#endif
}
/*
* Handle ESC in insert mode.
* Returns TRUE when leaving insert mode, FALSE when going to repeat the
* insert.
*/
static int
ins_esc(
long *count,
int cmdchar,
int nomove) // don't move cursor
{
int temp;
static int disabled_redraw = FALSE;
#ifdef FEAT_CONCEAL
// Remember if the cursor line was concealed before changing State.
int cursor_line_was_concealed = curwin->w_p_cole > 0
&& conceal_cursor_line(curwin);
#endif
#ifdef FEAT_SPELL
check_spell_redraw();
#endif
temp = curwin->w_cursor.col;
if (disabled_redraw)
{
if (RedrawingDisabled > 0)
--RedrawingDisabled;
disabled_redraw = FALSE;
}
if (!arrow_used)
{
/*
* Don't append the ESC for "r<CR>" and "grx".
* When 'insertmode' is set only CTRL-L stops Insert mode. Needed for
* when "count" is non-zero.
*/
if (cmdchar != 'r' && cmdchar != 'v')
AppendToRedobuff(p_im ? (char_u *)"\014" : ESC_STR);
/*
* Repeating insert may take a long time. Check for
* interrupt now and then.
*/
if (*count > 0)
{
line_breakcheck();
if (got_int)
*count = 0;
}
if (--*count > 0) // repeat what was typed
{
// Vi repeats the insert without replacing characters.
if (vim_strchr(p_cpo, CPO_REPLCNT) != NULL)
State &= ~REPLACE_FLAG;
(void)start_redo_ins();
if (cmdchar == 'r' || cmdchar == 'v')
stuffRedoReadbuff(ESC_STR); // no ESC in redo buffer
++RedrawingDisabled;
disabled_redraw = TRUE;
return FALSE; // repeat the insert
}
stop_insert(&curwin->w_cursor, TRUE, nomove);
undisplay_dollar();
}
if (cmdchar != 'r' && cmdchar != 'v')
ins_apply_autocmds(EVENT_INSERTLEAVEPRE);
// When an autoindent was removed, curswant stays after the
// indent
if (restart_edit == NUL && (colnr_T)temp == curwin->w_cursor.col)
curwin->w_set_curswant = TRUE;
// Remember the last Insert position in the '^ mark.
if ((cmdmod.cmod_flags & CMOD_KEEPJUMPS) == 0)
curbuf->b_last_insert = curwin->w_cursor;
/*
* The cursor should end up on the last inserted character.
* Don't do it for CTRL-O, unless past the end of the line.
*/
if (!nomove
&& (curwin->w_cursor.col != 0
|| curwin->w_cursor.coladd > 0)
&& (restart_edit == NUL
|| (gchar_cursor() == NUL && !VIsual_active))
#ifdef FEAT_RIGHTLEFT
&& !revins_on
#endif
)
{
if (curwin->w_cursor.coladd > 0 || get_ve_flags() == VE_ALL)
{
oneleft();
if (restart_edit != NUL)
++curwin->w_cursor.coladd;
}
else
{
--curwin->w_cursor.col;
curwin->w_valid &= ~(VALID_WCOL|VALID_VIRTCOL);
// Correct cursor for multi-byte character.
if (has_mbyte)
mb_adjust_cursor();
}
}
#ifdef HAVE_INPUT_METHOD
// Disable IM to allow typing English directly for Normal mode commands.
// When ":lmap" is enabled don't change 'iminsert' (IM can be enabled as
// well).
if (!(State & MODE_LANGMAP))
im_save_status(&curbuf->b_p_iminsert);
im_set_active(FALSE);
#endif
State = MODE_NORMAL;
may_trigger_modechanged();
// need to position cursor again when on a TAB and when on a char with
// virtual text.
if (gchar_cursor() == TAB
#ifdef FEAT_PROP_POPUP
|| curbuf->b_has_textprop
#endif
)
curwin->w_valid &= ~(VALID_WROW|VALID_WCOL|VALID_VIRTCOL);
setmouse();
#ifdef CURSOR_SHAPE
ui_cursor_shape(); // may show different cursor shape
#endif
if (!p_ek)
{
MAY_WANT_TO_LOG_THIS;
// Re-enable bracketed paste mode.
out_str_t_BE();
// Re-enable modifyOtherKeys.
out_str_t_TI();
}
#ifdef FEAT_CONCEAL
// Check if the cursor line needs redrawing after changing State. If
// 'concealcursor' is "i" it needs to be redrawn without concealing.
conceal_check_cursor_line(cursor_line_was_concealed);
#endif
// When recording or for CTRL-O, need to display the new mode.
// Otherwise remove the mode message.
if (reg_recording != 0 || restart_edit != NUL)
showmode();
else if (p_smd && (got_int || !skip_showmode()))
msg("");
return TRUE; // exit Insert mode
}
#ifdef FEAT_RIGHTLEFT
/*
* Toggle language: hkmap and revins_on.
* Move to end of reverse inserted text.
*/
static void
ins_ctrl_(void)
{
if (revins_on && revins_chars && revins_scol >= 0)
{
while (gchar_cursor() != NUL && revins_chars--)
++curwin->w_cursor.col;
}
p_ri = !p_ri;
revins_on = (State == MODE_INSERT && p_ri);
if (revins_on)
{
revins_scol = curwin->w_cursor.col;
revins_legal++;
revins_chars = 0;
undisplay_dollar();
}
else
revins_scol = -1;
p_hkmap = curwin->w_p_rl ^ p_ri; // be consistent!
showmode();
}
#endif
/*
* If 'keymodel' contains "startsel", may start selection.
* Returns TRUE when a CTRL-O and other keys stuffed.
*/
static int
ins_start_select(int c)
{
if (!km_startsel)
return FALSE;
switch (c)
{
case K_KHOME:
case K_KEND:
case K_PAGEUP:
case K_KPAGEUP:
case K_PAGEDOWN:
case K_KPAGEDOWN:
# ifdef MACOS_X
case K_LEFT:
case K_RIGHT:
case K_UP:
case K_DOWN:
case K_END:
case K_HOME:
# endif
if (!(mod_mask & MOD_MASK_SHIFT))
break;
// FALLTHROUGH
case K_S_LEFT:
case K_S_RIGHT:
case K_S_UP:
case K_S_DOWN:
case K_S_END:
case K_S_HOME:
// Start selection right away, the cursor can move with CTRL-O when
// beyond the end of the line.
start_selection();
// Execute the key in (insert) Select mode.
stuffcharReadbuff(Ctrl_O);
if (mod_mask)
{
char_u buf[4];
buf[0] = K_SPECIAL;
buf[1] = KS_MODIFIER;
buf[2] = mod_mask;
buf[3] = NUL;
stuffReadbuff(buf);
}
stuffcharReadbuff(c);
return TRUE;
}
return FALSE;
}
/*
* <Insert> key in Insert mode: toggle insert/replace mode.
*/
static void
ins_insert(int replaceState)
{
#ifdef FEAT_EVAL
set_vim_var_string(VV_INSERTMODE,
(char_u *)((State & REPLACE_FLAG) ? "i"
: replaceState == MODE_VREPLACE ? "v" : "r"), 1);
#endif
ins_apply_autocmds(EVENT_INSERTCHANGE);
if (State & REPLACE_FLAG)
State = MODE_INSERT | (State & MODE_LANGMAP);
else
State = replaceState | (State & MODE_LANGMAP);
may_trigger_modechanged();
AppendCharToRedobuff(K_INS);
showmode();
#ifdef CURSOR_SHAPE
ui_cursor_shape(); // may show different cursor shape
#endif
}
/*
* Pressed CTRL-O in Insert mode.
*/
static void
ins_ctrl_o(void)
{
restart_VIsual_select = 0;
if (State & VREPLACE_FLAG)
restart_edit = 'V';
else if (State & REPLACE_FLAG)
restart_edit = 'R';
else
restart_edit = 'I';
if (virtual_active())
ins_at_eol = FALSE; // cursor always keeps its column
else
ins_at_eol = (gchar_cursor() == NUL);
}
/*
* If the cursor is on an indent, ^T/^D insert/delete one
* shiftwidth. Otherwise ^T/^D behave like a "<<" or ">>".
* Always round the indent to 'shiftwidth', this is compatible
* with vi. But vi only supports ^T and ^D after an
* autoindent, we support it everywhere.
*/
static void
ins_shift(int c, int lastc)
{
if (stop_arrow() == FAIL)
return;
AppendCharToRedobuff(c);
/*
* 0^D and ^^D: remove all indent.
*/
if (c == Ctrl_D && (lastc == '0' || lastc == '^')
&& curwin->w_cursor.col > 0)
{
--curwin->w_cursor.col;
(void)del_char(FALSE); // delete the '^' or '0'
// In Replace mode, restore the characters that '^' or '0' replaced.
if (State & REPLACE_FLAG)
replace_pop_ins();
if (lastc == '^')
old_indent = get_indent(); // remember curr. indent
change_indent(INDENT_SET, 0, TRUE, 0, TRUE);
}
else
change_indent(c == Ctrl_D ? INDENT_DEC : INDENT_INC, 0, TRUE, 0, TRUE);
if (did_ai && *skipwhite(ml_get_curline()) != NUL)
did_ai = FALSE;
did_si = FALSE;
can_si = FALSE;
can_si_back = FALSE;
can_cindent = FALSE; // no cindenting after ^D or ^T
}
static void
ins_del(void)
{
int temp;
if (stop_arrow() == FAIL)
return;
if (gchar_cursor() == NUL) // delete newline
{
temp = curwin->w_cursor.col;
if (!can_bs(BS_EOL) // only if "eol" included
|| do_join(2, FALSE, TRUE, FALSE, FALSE) == FAIL)
vim_beep(BO_BS);
else
{
curwin->w_cursor.col = temp;
// Adjust orig_line_count in case more lines have been deleted than
// have been added. That makes sure, that open_line() later
// can access all buffer lines correctly
if (State & VREPLACE_FLAG &&
orig_line_count > curbuf->b_ml.ml_line_count)
orig_line_count = curbuf->b_ml.ml_line_count;
}
}
else if (del_char(FALSE) == FAIL) // delete char under cursor
vim_beep(BO_BS);
did_ai = FALSE;
did_si = FALSE;
can_si = FALSE;
can_si_back = FALSE;
AppendCharToRedobuff(K_DEL);
}
/*
* Delete one character for ins_bs().
*/
static void
ins_bs_one(void)
{
dec_cursor();
if (State & REPLACE_FLAG)
{
// Don't delete characters before the insert point when in
// Replace mode
if (curwin->w_cursor.lnum != Insstart.lnum
|| curwin->w_cursor.col >= Insstart.col)
replace_do_bs(-1);
}
else
(void)del_char(FALSE);
}
/*
* Handle Backspace, delete-word and delete-line in Insert mode.
* Return TRUE when backspace was actually used.
*/
static int
ins_bs(
int c,
int mode,
int *inserted_space_p)
{
linenr_T lnum;
int cc;
int temp = 0; // init for GCC
colnr_T save_col;
colnr_T mincol;
int did_backspace = FALSE;
int in_indent;
int oldState;
int cpc[MAX_MCO]; // composing characters
int call_fix_indent = FALSE;
/*
* can't delete anything in an empty file
* can't backup past first character in buffer
* can't backup past starting point unless 'backspace' > 1
* can backup to a previous line if 'backspace' == 0
*/
if ( BUFEMPTY()
|| (
#ifdef FEAT_RIGHTLEFT
!revins_on &&
#endif
((curwin->w_cursor.lnum == 1 && curwin->w_cursor.col == 0)
|| (!can_bs(BS_START)
&& ((arrow_used
#ifdef FEAT_JOB_CHANNEL
&& !bt_prompt(curbuf)
#endif
) || (curwin->w_cursor.lnum == Insstart_orig.lnum
&& curwin->w_cursor.col <= Insstart_orig.col)))
|| (!can_bs(BS_INDENT) && !arrow_used && ai_col > 0
&& curwin->w_cursor.col <= ai_col)
|| (!can_bs(BS_EOL) && curwin->w_cursor.col == 0))))
{
vim_beep(BO_BS);
return FALSE;
}
if (stop_arrow() == FAIL)
return FALSE;
in_indent = inindent(0);
if (in_indent)
can_cindent = FALSE;
end_comment_pending = NUL; // After BS, don't auto-end comment
#ifdef FEAT_RIGHTLEFT
if (revins_on) // put cursor after last inserted char
inc_cursor();
#endif
// Virtualedit:
// BACKSPACE_CHAR eats a virtual space
// BACKSPACE_WORD eats all coladd
// BACKSPACE_LINE eats all coladd and keeps going
if (curwin->w_cursor.coladd > 0)
{
if (mode == BACKSPACE_CHAR)
{
--curwin->w_cursor.coladd;
return TRUE;
}
if (mode == BACKSPACE_WORD)
{
curwin->w_cursor.coladd = 0;
return TRUE;
}
curwin->w_cursor.coladd = 0;
}
/*
* Delete newline!
*/
if (curwin->w_cursor.col == 0)
{
lnum = Insstart.lnum;
if (curwin->w_cursor.lnum == lnum
#ifdef FEAT_RIGHTLEFT
|| revins_on
#endif
)
{
if (u_save((linenr_T)(curwin->w_cursor.lnum - 2),
(linenr_T)(curwin->w_cursor.lnum + 1)) == FAIL)
return FALSE;
--Insstart.lnum;
Insstart.col = ml_get_len(Insstart.lnum);
}
/*
* In replace mode:
* cc < 0: NL was inserted, delete it
* cc >= 0: NL was replaced, put original characters back
*/
cc = -1;
if (State & REPLACE_FLAG)
cc = replace_pop(); // returns -1 if NL was inserted
/*
* In replace mode, in the line we started replacing, we only move the
* cursor.
*/
if ((State & REPLACE_FLAG) && curwin->w_cursor.lnum <= lnum)
{
dec_cursor();
}
else
{
if (!(State & VREPLACE_FLAG)
|| curwin->w_cursor.lnum > orig_line_count)
{
temp = gchar_cursor(); // remember current char
--curwin->w_cursor.lnum;
// When "aw" is in 'formatoptions' we must delete the space at
// the end of the line, otherwise the line will be broken
// again when auto-formatting.
if (has_format_option(FO_AUTO)
&& has_format_option(FO_WHITE_PAR))
{
char_u *ptr = ml_get_buf(curbuf, curwin->w_cursor.lnum,
FALSE);
int len = ml_get_curline_len();
if (len > 0 && ptr[len - 1] == ' ')
{
char_u *newp = alloc(curbuf->b_ml.ml_line_len - 1);
if (newp != NULL)
{
mch_memmove(newp, ptr, len - 1);
newp[len - 1] = NUL;
if (curbuf->b_ml.ml_line_len > len + 1)
mch_memmove(newp + len, ptr + len + 1,
curbuf->b_ml.ml_line_len - len - 1);
if (curbuf->b_ml.ml_flags
& (ML_LINE_DIRTY | ML_ALLOCATED))
vim_free(curbuf->b_ml.ml_line_ptr);
curbuf->b_ml.ml_line_ptr = newp;
curbuf->b_ml.ml_line_len--;
curbuf->b_ml.ml_line_textlen--;
curbuf->b_ml.ml_flags |= ML_LINE_DIRTY;
}
}
}
(void)do_join(2, FALSE, FALSE, FALSE, FALSE);
if (temp == NUL && gchar_cursor() != NUL)
inc_cursor();
}
else
dec_cursor();
/*
* In MODE_REPLACE mode we have to put back the text that was
* replaced by the NL. On the replace stack is first a
* NUL-terminated sequence of characters that were deleted and then
* the characters that NL replaced.
*/
if (State & REPLACE_FLAG)
{
/*
* Do the next ins_char() in MODE_NORMAL state, to
* prevent ins_char() from replacing characters and
* avoiding showmatch().
*/
oldState = State;
State = MODE_NORMAL;
/*
* restore characters (blanks) deleted after cursor
*/
while (cc > 0)
{
save_col = curwin->w_cursor.col;
mb_replace_pop_ins(cc);
curwin->w_cursor.col = save_col;
cc = replace_pop();
}
// restore the characters that NL replaced
replace_pop_ins();
State = oldState;
}
}
did_ai = FALSE;
}
else
{
/*
* Delete character(s) before the cursor.
*/
#ifdef FEAT_RIGHTLEFT
if (revins_on) // put cursor on last inserted char
dec_cursor();
#endif
mincol = 0;
// keep indent
if (mode == BACKSPACE_LINE
&& (curbuf->b_p_ai || cindent_on())
#ifdef FEAT_RIGHTLEFT
&& !revins_on
#endif
)
{
save_col = curwin->w_cursor.col;
beginline(BL_WHITE);
if (curwin->w_cursor.col < save_col)
{
mincol = curwin->w_cursor.col;
// should now fix the indent to match with the previous line
call_fix_indent = TRUE;
}
curwin->w_cursor.col = save_col;
}
/*
* Handle deleting one 'shiftwidth' or 'softtabstop'.
*/
if ( mode == BACKSPACE_CHAR
&& ((p_sta && in_indent)
|| ((get_sts_value() != 0
#ifdef FEAT_VARTABS
|| tabstop_count(curbuf->b_p_vsts_array)
#endif
)
&& curwin->w_cursor.col > 0
&& (*(ml_get_cursor() - 1) == TAB
|| (*(ml_get_cursor() - 1) == ' '
&& (!*inserted_space_p
|| arrow_used))))))
{
colnr_T vcol = 0;
colnr_T want_vcol;
char_u *line;
char_u *ptr;
char_u *cursor_ptr;
char_u *space_ptr;
colnr_T space_vcol = 0;
int prev_space = FALSE;
colnr_T want_col;
*inserted_space_p = FALSE;
space_ptr = ptr = line = ml_get_curline();
cursor_ptr = line + curwin->w_cursor.col;
// Compute virtual column of cursor position, and find the last
// whitespace before cursor that is preceded by non-whitespace.
// Use chartabsize() so that virtual text and wrapping are ignored.
while (ptr < cursor_ptr)
{
int cur_space = VIM_ISWHITE(*ptr);
if (!prev_space && cur_space)
{
space_ptr = ptr;
space_vcol = vcol;
}
vcol += chartabsize(ptr, vcol);
MB_PTR_ADV(ptr);
prev_space = cur_space;
}
// Compute the virtual column where we want to be.
want_vcol = vcol > 0 ? vcol - 1 : 0;
if (p_sta && in_indent)
want_vcol -= want_vcol % (int)get_sw_value(curbuf);
else
#ifdef FEAT_VARTABS
want_vcol = tabstop_start(want_vcol, get_sts_value(),
curbuf->b_p_vsts_array);
#else
want_vcol -= want_vcol % (int)get_sts_value();
#endif
// Find the position to stop backspacing.
// Use chartabsize() so that virtual text and wrapping are ignored.
while (TRUE)
{
int size = chartabsize(space_ptr, space_vcol);
if (space_vcol + size > want_vcol)
break;
space_vcol += size;
MB_PTR_ADV(space_ptr);
}
want_col = space_ptr - line;
// Delete characters until we are at or before want_col.
while (curwin->w_cursor.col > want_col)
ins_bs_one();
// Insert extra spaces until we are at want_vcol.
for (; space_vcol < want_vcol; space_vcol++)
{
// Remember the first char we inserted
if (curwin->w_cursor.lnum == Insstart_orig.lnum
&& curwin->w_cursor.col < Insstart_orig.col)
Insstart_orig.col = curwin->w_cursor.col;
if (State & VREPLACE_FLAG)
ins_char(' ');
else
{
ins_str((char_u *)" ");
if ((State & REPLACE_FLAG))
replace_push(NUL);
}
}
}
/*
* Delete up to starting point, start of line or previous word.
*/
else
{
int cclass = 0, prev_cclass = 0;
if (has_mbyte)
cclass = mb_get_class(ml_get_cursor());
do
{
#ifdef FEAT_RIGHTLEFT
if (!revins_on) // put cursor on char to be deleted
#endif
dec_cursor();
cc = gchar_cursor();
// look multi-byte character class
if (has_mbyte)
{
prev_cclass = cclass;
cclass = mb_get_class(ml_get_cursor());
}
// start of word?
if (mode == BACKSPACE_WORD && !vim_isspace(cc))
{
mode = BACKSPACE_WORD_NOT_SPACE;
temp = vim_iswordc(cc);
}
// end of word?
else if (mode == BACKSPACE_WORD_NOT_SPACE
&& ((vim_isspace(cc) || vim_iswordc(cc) != temp)
|| prev_cclass != cclass))
{
#ifdef FEAT_RIGHTLEFT
if (!revins_on)
#endif
inc_cursor();
#ifdef FEAT_RIGHTLEFT
else if (State & REPLACE_FLAG)
dec_cursor();
#endif
break;
}
if (State & REPLACE_FLAG)
replace_do_bs(-1);
else
{
if (enc_utf8 && p_deco)
(void)utfc_ptr2char(ml_get_cursor(), cpc);
(void)del_char(FALSE);
/*
* If there are combining characters and 'delcombine' is set
* move the cursor back. Don't back up before the base
* character.
*/
if (enc_utf8 && p_deco && cpc[0] != NUL)
inc_cursor();
#ifdef FEAT_RIGHTLEFT
if (revins_chars)
{
revins_chars--;
revins_legal++;
}
if (revins_on && gchar_cursor() == NUL)
break;
#endif
}
// Just a single backspace?:
if (mode == BACKSPACE_CHAR)
break;
} while (
#ifdef FEAT_RIGHTLEFT
revins_on ||
#endif
(curwin->w_cursor.col > mincol
&& (can_bs(BS_NOSTOP)
|| (curwin->w_cursor.lnum != Insstart_orig.lnum
|| curwin->w_cursor.col != Insstart_orig.col)
)));
}
did_backspace = TRUE;
}
did_si = FALSE;
can_si = FALSE;
can_si_back = FALSE;
if (curwin->w_cursor.col <= 1)
did_ai = FALSE;
if (call_fix_indent)
fix_indent();
/*
* It's a little strange to put backspaces into the redo
* buffer, but it makes auto-indent a lot easier to deal
* with.
*/
AppendCharToRedobuff(c);
// If deleted before the insertion point, adjust it
if (curwin->w_cursor.lnum == Insstart_orig.lnum
&& curwin->w_cursor.col < Insstart_orig.col)
Insstart_orig.col = curwin->w_cursor.col;
// vi behaviour: the cursor moves backward but the character that
// was there remains visible
// Vim behaviour: the cursor moves backward and the character that
// was there is erased from the screen.
// We can emulate the vi behaviour by pretending there is a dollar
// displayed even when there isn't.
// --pkv Sun Jan 19 01:56:40 EST 2003
if (vim_strchr(p_cpo, CPO_BACKSPACE) != NULL && dollar_vcol == -1)
dollar_vcol = curwin->w_virtcol;
#ifdef FEAT_FOLDING
// When deleting a char the cursor line must never be in a closed fold.
// E.g., when 'foldmethod' is indent and deleting the first non-white
// char before a Tab.
if (did_backspace)
foldOpenCursor();
#endif
return did_backspace;
}
/*
* Handle receiving P_PS: start paste mode. Inserts the following text up to
* P_PE literally.
* When "drop" is TRUE then consume the text and drop it.
*/
int
bracketed_paste(paste_mode_T mode, int drop, garray_T *gap)
{
int c;
char_u buf[NUMBUFLEN + MB_MAXBYTES];
int idx = 0;
char_u *end = find_termcode((char_u *)"PE");
int ret_char = -1;
int save_allow_keys = allow_keys;
int save_paste = p_paste;
// If the end code is too long we can't detect it, read everything.
if (end != NULL && STRLEN(end) >= NUMBUFLEN)
end = NULL;
++no_mapping;
allow_keys = 0;
if (!p_paste)
// Also have the side effects of setting 'paste' to make it work much
// faster.
set_option_value_give_err((char_u *)"paste", TRUE, NULL, 0);
for (;;)
{
// When the end is not defined read everything there is.
if (end == NULL && vpeekc() == NUL)
break;
do
c = vgetc();
while (c == K_IGNORE || c == K_VER_SCROLLBAR || c == K_HOR_SCROLLBAR);
if (c == NUL || got_int || (ex_normal_busy > 0 && c == Ctrl_C))
// When CTRL-C was encountered the typeahead will be flushed and we
// won't get the end sequence. Except when using ":normal".
break;
if (has_mbyte)
idx += (*mb_char2bytes)(c, buf + idx);
else
buf[idx++] = c;
buf[idx] = NUL;
if (end != NULL && STRNCMP(buf, end, idx) == 0)
{
if (end[idx] == NUL)
break; // Found the end of paste code.
continue;
}
if (!drop)
{
switch (mode)
{
case PASTE_CMDLINE:
put_on_cmdline(buf, idx, TRUE);
break;
case PASTE_EX:
// add one for the NUL that is going to be appended
if (gap != NULL && ga_grow(gap, idx + 1) == OK)
{
mch_memmove((char *)gap->ga_data + gap->ga_len,
buf, (size_t)idx);
gap->ga_len += idx;
}
break;
case PASTE_INSERT:
if (stop_arrow() == OK)
{
c = buf[0];
if (idx == 1 && (c == CAR || c == K_KENTER || c == NL))
ins_eol(c);
else
{
ins_char_bytes(buf, idx);
AppendToRedobuffLit(buf, idx);
}
}
break;
case PASTE_ONE_CHAR:
if (ret_char == -1)
{
if (has_mbyte)
ret_char = (*mb_ptr2char)(buf);
else
ret_char = buf[0];
}
break;
}
}
idx = 0;
}
--no_mapping;
allow_keys = save_allow_keys;
if (!save_paste)
set_option_value_give_err((char_u *)"paste", FALSE, NULL, 0);
return ret_char;
}
#if defined(FEAT_GUI_TABLINE) || defined(PROTO)
static void
ins_tabline(int c)
{
// We will be leaving the current window, unless closing another tab.
if (c != K_TABMENU || current_tabmenu != TABLINE_MENU_CLOSE
|| (current_tab != 0 && current_tab != tabpage_index(curtab)))
{
undisplay_dollar();
start_arrow(&curwin->w_cursor);
can_cindent = TRUE;
}
if (c == K_TABLINE)
goto_tabpage(current_tab);
else
{
handle_tabmenu();
redraw_statuslines(); // will redraw the tabline when needed
}
}
#endif
#if defined(FEAT_GUI) || defined(PROTO)
void
ins_scroll(void)
{
pos_T tpos;
undisplay_dollar();
tpos = curwin->w_cursor;
if (gui_do_scroll())
{
start_arrow(&tpos);
can_cindent = TRUE;
}
}
void
ins_horscroll(void)
{
pos_T tpos;
undisplay_dollar();
tpos = curwin->w_cursor;
if (do_mousescroll_horiz(scrollbar_value))
{
start_arrow(&tpos);
can_cindent = TRUE;
}
}
#endif
static void
ins_left(void)
{
pos_T tpos;
int end_change = dont_sync_undo == FALSE; // end undoable change
#ifdef FEAT_FOLDING
if ((fdo_flags & FDO_HOR) && KeyTyped)
foldOpenCursor();
#endif
undisplay_dollar();
tpos = curwin->w_cursor;
if (oneleft() == OK)
{
#if defined(FEAT_XIM) && defined(FEAT_GUI_GTK)
// Only call start_arrow() when not busy with preediting, it will
// break undo. K_LEFT is inserted in im_correct_cursor().
if (p_imst == IM_OVER_THE_SPOT || !im_is_preediting())
#endif
{
start_arrow_with_change(&tpos, end_change);
if (!end_change)
AppendCharToRedobuff(K_LEFT);
}
#ifdef FEAT_RIGHTLEFT
// If exit reversed string, position is fixed
if (revins_scol != -1 && (int)curwin->w_cursor.col >= revins_scol)
revins_legal++;
revins_chars++;
#endif
}
/*
* if 'whichwrap' set for cursor in insert mode may go to
* previous line
*/
else if (vim_strchr(p_ww, '[') != NULL && curwin->w_cursor.lnum > 1)
{
// always break undo when moving upwards/downwards, else undo may break
start_arrow(&tpos);
--(curwin->w_cursor.lnum);
coladvance((colnr_T)MAXCOL);
curwin->w_set_curswant = TRUE; // so we stay at the end
}
else
vim_beep(BO_CRSR);
dont_sync_undo = FALSE;
}
static void
ins_home(int c)
{
pos_T tpos;
#ifdef FEAT_FOLDING
if ((fdo_flags & FDO_HOR) && KeyTyped)
foldOpenCursor();
#endif
undisplay_dollar();
tpos = curwin->w_cursor;
if (c == K_C_HOME)
curwin->w_cursor.lnum = 1;
curwin->w_cursor.col = 0;
curwin->w_cursor.coladd = 0;
curwin->w_curswant = 0;
start_arrow(&tpos);
}
static void
ins_end(int c)
{
pos_T tpos;
#ifdef FEAT_FOLDING
if ((fdo_flags & FDO_HOR) && KeyTyped)
foldOpenCursor();
#endif
undisplay_dollar();
tpos = curwin->w_cursor;
if (c == K_C_END)
curwin->w_cursor.lnum = curbuf->b_ml.ml_line_count;
coladvance((colnr_T)MAXCOL);
curwin->w_curswant = MAXCOL;
start_arrow(&tpos);
}
static void
ins_s_left(void)
{
int end_change = dont_sync_undo == FALSE; // end undoable change
#ifdef FEAT_FOLDING
if ((fdo_flags & FDO_HOR) && KeyTyped)
foldOpenCursor();
#endif
undisplay_dollar();
if (curwin->w_cursor.lnum > 1 || curwin->w_cursor.col > 0)
{
start_arrow_with_change(&curwin->w_cursor, end_change);
if (!end_change)
AppendCharToRedobuff(K_S_LEFT);
(void)bck_word(1L, FALSE, FALSE);
curwin->w_set_curswant = TRUE;
}
else
vim_beep(BO_CRSR);
dont_sync_undo = FALSE;
}
static void
ins_right(void)
{
int end_change = dont_sync_undo == FALSE; // end undoable change
#ifdef FEAT_FOLDING
if ((fdo_flags & FDO_HOR) && KeyTyped)
foldOpenCursor();
#endif
undisplay_dollar();
if (gchar_cursor() != NUL || virtual_active())
{
start_arrow_with_change(&curwin->w_cursor, end_change);
if (!end_change)
AppendCharToRedobuff(K_RIGHT);
curwin->w_set_curswant = TRUE;
if (virtual_active())
oneright();
else
{
if (has_mbyte)
curwin->w_cursor.col += (*mb_ptr2len)(ml_get_cursor());
else
++curwin->w_cursor.col;
}
#ifdef FEAT_RIGHTLEFT
revins_legal++;
if (revins_chars)
revins_chars--;
#endif
}
// if 'whichwrap' set for cursor in insert mode, may move the
// cursor to the next line
else if (vim_strchr(p_ww, ']') != NULL
&& curwin->w_cursor.lnum < curbuf->b_ml.ml_line_count)
{
start_arrow(&curwin->w_cursor);
curwin->w_set_curswant = TRUE;
++curwin->w_cursor.lnum;
curwin->w_cursor.col = 0;
}
else
vim_beep(BO_CRSR);
dont_sync_undo = FALSE;
}
static void
ins_s_right(void)
{
int end_change = dont_sync_undo == FALSE; // end undoable change
#ifdef FEAT_FOLDING
if ((fdo_flags & FDO_HOR) && KeyTyped)
foldOpenCursor();
#endif
undisplay_dollar();
if (curwin->w_cursor.lnum < curbuf->b_ml.ml_line_count
|| gchar_cursor() != NUL)
{
start_arrow_with_change(&curwin->w_cursor, end_change);
if (!end_change)
AppendCharToRedobuff(K_S_RIGHT);
(void)fwd_word(1L, FALSE, 0);
curwin->w_set_curswant = TRUE;
}
else
vim_beep(BO_CRSR);
dont_sync_undo = FALSE;
}
static void
ins_up(
int startcol) // when TRUE move to Insstart.col
{
pos_T tpos;
linenr_T old_topline = curwin->w_topline;
#ifdef FEAT_DIFF
int old_topfill = curwin->w_topfill;
#endif
undisplay_dollar();
tpos = curwin->w_cursor;
if (cursor_up(1L, TRUE) == OK)
{
if (startcol)
coladvance(getvcol_nolist(&Insstart));
if (old_topline != curwin->w_topline
#ifdef FEAT_DIFF
|| old_topfill != curwin->w_topfill
#endif
)
redraw_later(UPD_VALID);
start_arrow(&tpos);
can_cindent = TRUE;
}
else
vim_beep(BO_CRSR);
}
static void
ins_pageup(void)
{
pos_T tpos;
undisplay_dollar();
if (mod_mask & MOD_MASK_CTRL)
{
// <C-PageUp>: tab page back
if (first_tabpage->tp_next != NULL)
{
start_arrow(&curwin->w_cursor);
goto_tabpage(-1);
}
return;
}
tpos = curwin->w_cursor;
if (pagescroll(BACKWARD, 1L, FALSE) == OK)
{
start_arrow(&tpos);
can_cindent = TRUE;
}
else
vim_beep(BO_CRSR);
}
static void
ins_down(
int startcol) // when TRUE move to Insstart.col
{
pos_T tpos;
linenr_T old_topline = curwin->w_topline;
#ifdef FEAT_DIFF
int old_topfill = curwin->w_topfill;
#endif
undisplay_dollar();
tpos = curwin->w_cursor;
if (cursor_down(1L, TRUE) == OK)
{
if (startcol)
coladvance(getvcol_nolist(&Insstart));
if (old_topline != curwin->w_topline
#ifdef FEAT_DIFF
|| old_topfill != curwin->w_topfill
#endif
)
redraw_later(UPD_VALID);
start_arrow(&tpos);
can_cindent = TRUE;
}
else
vim_beep(BO_CRSR);
}
static void
ins_pagedown(void)
{
pos_T tpos;
undisplay_dollar();
if (mod_mask & MOD_MASK_CTRL)
{
// <C-PageDown>: tab page forward
if (first_tabpage->tp_next != NULL)
{
start_arrow(&curwin->w_cursor);
goto_tabpage(0);
}
return;
}
tpos = curwin->w_cursor;
if (pagescroll(FORWARD, 1L, FALSE) == OK)
{
start_arrow(&tpos);
can_cindent = TRUE;
}
else
vim_beep(BO_CRSR);
}
#ifdef FEAT_DND
static void
ins_drop(void)
{
do_put('~', NULL, BACKWARD, 1L, PUT_CURSEND);
}
#endif
/*
* Handle TAB in Insert or Replace mode.
* Return TRUE when the TAB needs to be inserted like a normal character.
*/
static int
ins_tab(void)
{
int ind;
int i;
int temp;
if (Insstart_blank_vcol == MAXCOL && curwin->w_cursor.lnum == Insstart.lnum)
Insstart_blank_vcol = get_nolist_virtcol();
if (echeck_abbr(TAB + ABBR_OFF))
return FALSE;
ind = inindent(0);
if (ind)
can_cindent = FALSE;
/*
* When nothing special, insert TAB like a normal character.
*/
if (!curbuf->b_p_et
#ifdef FEAT_VARTABS
&& !(p_sta && ind
// These five lines mean 'tabstop' != 'shiftwidth'
&& ((tabstop_count(curbuf->b_p_vts_array) > 1)
|| (tabstop_count(curbuf->b_p_vts_array) == 1
&& tabstop_first(curbuf->b_p_vts_array)
!= get_sw_value(curbuf))
|| (tabstop_count(curbuf->b_p_vts_array) == 0
&& curbuf->b_p_ts != get_sw_value(curbuf))))
&& tabstop_count(curbuf->b_p_vsts_array) == 0
#else
&& !(p_sta && ind && curbuf->b_p_ts != get_sw_value(curbuf))
#endif
&& get_sts_value() == 0)
return TRUE;
if (stop_arrow() == FAIL)
return TRUE;
did_ai = FALSE;
did_si = FALSE;
can_si = FALSE;
can_si_back = FALSE;
AppendToRedobuff((char_u *)"\t");
#ifdef FEAT_VARTABS
if (p_sta && ind) // insert tab in indent, use 'shiftwidth'
{
temp = (int)get_sw_value(curbuf);
temp -= get_nolist_virtcol() % temp;
}
else if (tabstop_count(curbuf->b_p_vsts_array) > 0 || curbuf->b_p_sts != 0)
// use 'softtabstop' when set
temp = tabstop_padding(get_nolist_virtcol(), get_sts_value(),
curbuf->b_p_vsts_array);
else // otherwise use 'tabstop'
temp = tabstop_padding(get_nolist_virtcol(), curbuf->b_p_ts,
curbuf->b_p_vts_array);
#else
if (p_sta && ind) // insert tab in indent, use 'shiftwidth'
temp = (int)get_sw_value(curbuf);
else if (curbuf->b_p_sts != 0) // use 'softtabstop' when set
temp = (int)get_sts_value();
else // otherwise use 'tabstop'
temp = (int)curbuf->b_p_ts;
temp -= get_nolist_virtcol() % temp;
#endif
/*
* Insert the first space with ins_char(). It will delete one char in
* replace mode. Insert the rest with ins_str(); it will not delete any
* chars. For MODE_VREPLACE state, we use ins_char() for all characters.
*/
ins_char(' ');
while (--temp > 0)
{
if (State & VREPLACE_FLAG)
ins_char(' ');
else
{
ins_str((char_u *)" ");
if (State & REPLACE_FLAG) // no char replaced
replace_push(NUL);
}
}
/*
* When 'expandtab' not set: Replace spaces by TABs where possible.
*/
#ifdef FEAT_VARTABS
if (!curbuf->b_p_et && (tabstop_count(curbuf->b_p_vsts_array) > 0
|| get_sts_value() > 0
|| (p_sta && ind)))
#else
if (!curbuf->b_p_et && (get_sts_value() || (p_sta && ind)))
#endif
{
char_u *ptr;
char_u *saved_line = NULL; // init for GCC
pos_T pos;
pos_T fpos;
pos_T *cursor;
colnr_T want_vcol, vcol;
int change_col = -1;
int save_list = curwin->w_p_list;
char_u *tab = (char_u *)"\t";
chartabsize_T cts;
/*
* Get the current line. For MODE_VREPLACE state, don't make real
* changes yet, just work on a copy of the line.
*/
if (State & VREPLACE_FLAG)
{
pos = curwin->w_cursor;
cursor = &pos;
saved_line = vim_strnsave(ml_get_curline(), ml_get_curline_len());
if (saved_line == NULL)
return FALSE;
ptr = saved_line + pos.col;
}
else
{
ptr = ml_get_cursor();
cursor = &curwin->w_cursor;
}
// When 'L' is not in 'cpoptions' a tab always takes up 'ts' spaces.
if (vim_strchr(p_cpo, CPO_LISTWM) == NULL)
curwin->w_p_list = FALSE;
// Find first white before the cursor
fpos = curwin->w_cursor;
while (fpos.col > 0 && VIM_ISWHITE(ptr[-1]))
{
--fpos.col;
--ptr;
}
// In Replace mode, don't change characters before the insert point.
if ((State & REPLACE_FLAG)
&& fpos.lnum == Insstart.lnum
&& fpos.col < Insstart.col)
{
ptr += Insstart.col - fpos.col;
fpos.col = Insstart.col;
}
// compute virtual column numbers of first white and cursor
getvcol(curwin, &fpos, &vcol, NULL, NULL);
getvcol(curwin, cursor, &want_vcol, NULL, NULL);
init_chartabsize_arg(&cts, curwin, 0, vcol, tab, tab);
// Use as many TABs as possible. Beware of 'breakindent', 'showbreak'
// and 'linebreak' adding extra virtual columns.
while (VIM_ISWHITE(*ptr))
{
i = lbr_chartabsize(&cts);
if (cts.cts_vcol + i > want_vcol)
break;
if (*ptr != TAB)
{
*ptr = TAB;
if (change_col < 0)
{
change_col = fpos.col; // Column of first change
// May have to adjust Insstart
if (fpos.lnum == Insstart.lnum && fpos.col < Insstart.col)
Insstart.col = fpos.col;
}
}
++fpos.col;
++ptr;
cts.cts_vcol += i;
}
vcol = cts.cts_vcol;
clear_chartabsize_arg(&cts);
if (change_col >= 0)
{
int repl_off = 0;
// Skip over the spaces we need.
init_chartabsize_arg(&cts, curwin, 0, vcol, ptr, ptr);
while (cts.cts_vcol < want_vcol && *cts.cts_ptr == ' ')
{
cts.cts_vcol += lbr_chartabsize(&cts);
++cts.cts_ptr;
++repl_off;
}
ptr = cts.cts_ptr;
vcol = cts.cts_vcol;
clear_chartabsize_arg(&cts);
if (vcol > want_vcol)
{
// Must have a char with 'showbreak' just before it.
--ptr;
--repl_off;
}
fpos.col += repl_off;
// Delete following spaces.
i = cursor->col - fpos.col;
if (i > 0)
{
#ifdef FEAT_PROP_POPUP
if (!(State & VREPLACE_FLAG))
{
char_u *newp;
int col;
newp = alloc(curbuf->b_ml.ml_line_len - i);
if (newp == NULL)
return FALSE;
col = ptr - curbuf->b_ml.ml_line_ptr;
if (col > 0)
mch_memmove(newp, ptr - col, col);
mch_memmove(newp + col, ptr + i,
curbuf->b_ml.ml_line_len - col - i);
if (curbuf->b_ml.ml_flags & (ML_LINE_DIRTY | ML_ALLOCATED))
vim_free(curbuf->b_ml.ml_line_ptr);
curbuf->b_ml.ml_line_ptr = newp;
curbuf->b_ml.ml_line_len -= i;
curbuf->b_ml.ml_line_textlen = 0;
curbuf->b_ml.ml_flags =
(curbuf->b_ml.ml_flags | ML_LINE_DIRTY) & ~ML_EMPTY;
}
else
#endif
STRMOVE(ptr, ptr + i);
// correct replace stack.
if ((State & REPLACE_FLAG) && !(State & VREPLACE_FLAG))
for (temp = i; --temp >= 0; )
replace_join(repl_off);
}
#ifdef FEAT_NETBEANS_INTG
if (netbeans_active())
{
netbeans_removed(curbuf, fpos.lnum, cursor->col, (long)(i + 1));
netbeans_inserted(curbuf, fpos.lnum, cursor->col,
(char_u *)"\t", 1);
}
#endif
cursor->col -= i;
/*
* In MODE_VREPLACE state, we haven't changed anything yet. Do it
* now by backspacing over the changed spacing and then inserting
* the new spacing.
*/
if (State & VREPLACE_FLAG)
{
// Backspace from real cursor to change_col
backspace_until_column(change_col);
// Insert each char in saved_line from changed_col to
// ptr-cursor
ins_bytes_len(saved_line + change_col,
cursor->col - change_col);
}
}
if (State & VREPLACE_FLAG)
vim_free(saved_line);
curwin->w_p_list = save_list;
}
return FALSE;
}
/*
* Handle CR or NL in insert mode.
* Return FAIL when out of memory or can't undo.
*/
int
ins_eol(int c)
{
int i;
if (echeck_abbr(c + ABBR_OFF))
return OK;
if (stop_arrow() == FAIL)
return FAIL;
undisplay_dollar();
/*
* Strange Vi behaviour: In Replace mode, typing a NL will not delete the
* character under the cursor. Only push a NUL on the replace stack,
* nothing to put back when the NL is deleted.
*/
if ((State & REPLACE_FLAG) && !(State & VREPLACE_FLAG))
replace_push(NUL);
/*
* In MODE_VREPLACE state, a NL replaces the rest of the line, and starts
* replacing the next line, so we push all of the characters left on the
* line onto the replace stack. This is not done here though, it is done
* in open_line().
*/
// Put cursor on NUL if on the last char and coladd is 1 (happens after
// CTRL-O).
if (virtual_active() && curwin->w_cursor.coladd > 0)
coladvance(getviscol());
#ifdef FEAT_RIGHTLEFT
// NL in reverse insert will always start in the end of
// current line.
if (revins_on)
curwin->w_cursor.col += ml_get_cursor_len();
#endif
AppendToRedobuff(NL_STR);
i = open_line(FORWARD,
has_format_option(FO_RET_COMS) ? OPENLINE_DO_COM : 0, old_indent,
NULL);
old_indent = 0;
can_cindent = TRUE;
#ifdef FEAT_FOLDING
// When inserting a line the cursor line must never be in a closed fold.
foldOpenCursor();
#endif
return i;
}
#ifdef FEAT_DIGRAPHS
/*
* Handle digraph in insert mode.
* Returns character still to be inserted, or NUL when nothing remaining to be
* done.
*/
static int
ins_digraph(void)
{
int c;
int cc;
int did_putchar = FALSE;
pc_status = PC_STATUS_UNSET;
if (redrawing() && !char_avail())
{
// may need to redraw when no more chars available now
ins_redraw(FALSE);
edit_putchar('?', TRUE);
did_putchar = TRUE;
add_to_showcmd_c(Ctrl_K);
}
#ifdef USE_ON_FLY_SCROLL
dont_scroll = TRUE; // disallow scrolling here
#endif
// don't map the digraph chars. This also prevents the
// mode message to be deleted when ESC is hit
++no_mapping;
++allow_keys;
c = plain_vgetc();
--no_mapping;
--allow_keys;
if (did_putchar)
// when the line fits in 'columns' the '?' is at the start of the next
// line and will not be removed by the redraw
edit_unputchar();
if (IS_SPECIAL(c) || mod_mask) // special key
{
clear_showcmd();
insert_special(c, TRUE, FALSE);
return NUL;
}
if (c != ESC)
{
did_putchar = FALSE;
if (redrawing() && !char_avail())
{
// may need to redraw when no more chars available now
ins_redraw(FALSE);
if (char2cells(c) == 1)
{
ins_redraw(FALSE);
edit_putchar(c, TRUE);
did_putchar = TRUE;
}
add_to_showcmd_c(c);
}
++no_mapping;
++allow_keys;
cc = plain_vgetc();
--no_mapping;
--allow_keys;
if (did_putchar)
// when the line fits in 'columns' the '?' is at the start of the
// next line and will not be removed by a redraw
edit_unputchar();
if (cc != ESC)
{
AppendToRedobuff((char_u *)CTRL_V_STR);
c = digraph_get(c, cc, TRUE);
clear_showcmd();
return c;
}
}
clear_showcmd();
return NUL;
}
#endif
/*
* Handle CTRL-E and CTRL-Y in Insert mode: copy char from other line.
* Returns the char to be inserted, or NUL if none found.
*/
int
ins_copychar(linenr_T lnum)
{
int c;
char_u *ptr, *prev_ptr;
char_u *line;
chartabsize_T cts;
if (lnum < 1 || lnum > curbuf->b_ml.ml_line_count)
{
vim_beep(BO_COPY);
return NUL;
}
// try to advance to the cursor column
validate_virtcol();
line = ml_get(lnum);
prev_ptr = line;
init_chartabsize_arg(&cts, curwin, lnum, 0, line, line);
while (cts.cts_vcol < curwin->w_virtcol && *cts.cts_ptr != NUL)
{
prev_ptr = cts.cts_ptr;
cts.cts_vcol += lbr_chartabsize_adv(&cts);
}
if (cts.cts_vcol > curwin->w_virtcol)
ptr = prev_ptr;
else
ptr = cts.cts_ptr;
clear_chartabsize_arg(&cts);
c = (*mb_ptr2char)(ptr);
if (c == NUL)
vim_beep(BO_COPY);
return c;
}
/*
* CTRL-Y or CTRL-E typed in Insert mode.
*/
static int
ins_ctrl_ey(int tc)
{
int c = tc;
if (ctrl_x_mode_scroll())
{
if (c == Ctrl_Y)
scrolldown_clamp();
else
scrollup_clamp();
redraw_later(UPD_VALID);
}
else
{
c = ins_copychar(curwin->w_cursor.lnum + (c == Ctrl_Y ? -1 : 1));
if (c != NUL)
{
long tw_save;
// The character must be taken literally, insert like it
// was typed after a CTRL-V, and pretend 'textwidth'
// wasn't set. Digits, 'o' and 'x' are special after a
// CTRL-V, don't use it for these.
if (c < 256 && !SAFE_isalnum(c))
AppendToRedobuff((char_u *)CTRL_V_STR); // CTRL-V
tw_save = curbuf->b_p_tw;
curbuf->b_p_tw = -1;
insert_special(c, TRUE, FALSE);
curbuf->b_p_tw = tw_save;
#ifdef FEAT_RIGHTLEFT
revins_chars++;
revins_legal++;
#endif
c = Ctrl_V; // pretend CTRL-V is last character
auto_format(FALSE, TRUE);
}
}
return c;
}
/*
* Get the value that w_virtcol would have when 'list' is off.
* Unless 'cpo' contains the 'L' flag.
*/
colnr_T
get_nolist_virtcol(void)
{
// check validity of cursor in current buffer
if (curwin->w_buffer == NULL
|| curwin->w_buffer->b_ml.ml_mfp == NULL
|| curwin->w_cursor.lnum > curwin->w_buffer->b_ml.ml_line_count)
return 0;
if (curwin->w_p_list && vim_strchr(p_cpo, CPO_LISTWM) == NULL)
return getvcol_nolist(&curwin->w_cursor);
validate_virtcol();
return curwin->w_virtcol;
}
#if defined(FEAT_EVAL)
/*
* Handle the InsertCharPre autocommand.
* "c" is the character that was typed.
* Return a pointer to allocated memory with the replacement string.
* Return NULL to continue inserting "c".
*/
static char_u *
do_insert_char_pre(int c)
{
char_u *res;
char_u buf[MB_MAXBYTES + 1];
int save_State = State;
// Return quickly when there is nothing to do.
if (!has_insertcharpre())
return NULL;
if (c == Ctrl_RSB)
return NULL;
if (has_mbyte)
buf[(*mb_char2bytes)(c, buf)] = NUL;
else
{
buf[0] = c;
buf[1] = NUL;
}
// Lock the text to avoid weird things from happening.
++textlock;
set_vim_var_string(VV_CHAR, buf, -1); // set v:char
res = NULL;
if (ins_apply_autocmds(EVENT_INSERTCHARPRE))
{
// Get the value of v:char. It may be empty or more than one
// character. Only use it when changed, otherwise continue with the
// original character to avoid breaking autoindent.
if (STRCMP(buf, get_vim_var_str(VV_CHAR)) != 0)
res = vim_strsave(get_vim_var_str(VV_CHAR));
}
set_vim_var_string(VV_CHAR, NULL, -1); // clear v:char
--textlock;
// Restore the State, it may have been changed.
State = save_State;
return res;
}
#endif
int
get_can_cindent(void)
{
return can_cindent;
}
void
set_can_cindent(int val)
{
can_cindent = val;
}
/*
* Trigger "event" and take care of fixing undo.
*/
int
ins_apply_autocmds(event_T event)
{
varnumber_T tick = CHANGEDTICK(curbuf);
int r;
r = apply_autocmds(event, NULL, NULL, FALSE, curbuf);
// If u_savesub() was called then we are not prepared to start
// a new line. Call u_save() with no contents to fix that.
// Except when leaving Insert mode.
if (event != EVENT_INSERTLEAVE && tick != CHANGEDTICK(curbuf))
u_save(curwin->w_cursor.lnum, (linenr_T)(curwin->w_cursor.lnum + 1));
return r;
}