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gerrit.omnirom.org / android_external_vim / 18a4ba29aeccb9841d5bfdd2eaaffdfae2f15ced / . / src / edit.c
blob: 6e4b4743c47744d05908132337d51a12e998b3b3 [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
#ifdef FEAT_INS_EXPAND
/* Set when doing something for completion that may call edit() recursively,
* which is not allowed. */
static int compl_busy = FALSE;
#endif /* FEAT_INS_EXPAND */
static void ins_ctrl_v(void);
#ifdef FEAT_JOB_CHANNEL
static void init_prompt(int cmdchar_todo);
#endif
static void undisplay_dollar(void);
static void insert_special(int, int, int);
static void internal_format(int textwidth, int second_indent, int flags, int format_only, int c);
static void check_auto_format(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 replace_join(int off);
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);
#ifdef FEAT_MOUSE
static void ins_mouse(int c);
static void ins_mousescroll(int dir);
#endif
#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);
#ifdef FEAT_SMARTINDENT
static void ins_try_si(int c);
#endif
#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() */
#ifdef FEAT_CINDENT
static int can_cindent; /* may do cindenting on this line */
#endif
static int old_indent = 0; /* for ^^D command in insert mode */
#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 did_add_space = FALSE; // auto_format() added an extra space
// under the cursor
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 */
#ifdef FEAT_CINDENT
int line_is_white = FALSE; /* line is empty before insert */
#endif
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 = REPLACE;
int nomove = FALSE; /* don't move cursor on return */
#ifdef FEAT_JOB_CHANNEL
int cmdchar_todo = cmdchar;
#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_sandbox));
return FALSE;
}
#endif
/* Don't allow changes in the buffer while editing the cmdline. The
* caller of getcmdline() may get confused. */
if (textlock != 0)
{
emsg(_(e_secure));
return FALSE;
}
#ifdef FEAT_INS_EXPAND
/* Don't allow recursive insert mode when busy with completion. */
if (ins_compl_active() || compl_busy || pum_visible())
{
emsg(_(e_secure));
return FALSE;
}
ins_compl_clear(); /* clear stuff for CTRL-X mode */
#endif
/*
* 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);
/* 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 = INSERT;
check_cursor_col();
State = save_state;
}
}
#ifdef FEAT_CONCEAL
/* Check if the cursor line needs redrawing before changing State. If
* 'concealcursor' is "n" it needs to be redrawn without concealing. */
conceal_check_cursor_line();
#endif
#ifdef FEAT_MOUSE
/*
* 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
#endif
{
Insstart = curwin->w_cursor;
if (startln)
Insstart.col = 0;
}
Insstart_textlen = (colnr_T)linetabsize(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 = REPLACE;
}
else if (cmdchar == 'V' || cmdchar == 'v')
{
State = VREPLACE;
replaceState = VREPLACE;
orig_line_count = curbuf->b_ml.ml_line_count;
vr_lines_changed = 1;
}
else
State = INSERT;
stop_insert_mode = FALSE;
/*
* Need to recompute the cursor position, it might move when the cursor is
* on a TAB or special character.
*/
curs_columns(TRUE);
/*
* 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 |= LANGMAP;
#ifdef HAVE_INPUT_METHOD
im_set_active(curbuf->b_p_iminsert == B_IMODE_IM);
#endif
#ifdef FEAT_MOUSE
setmouse();
#endif
#ifdef FEAT_CMDL_INFO
clear_showcmd();
#endif
#ifdef FEAT_RIGHTLEFT
/* there is no reverse replace mode */
revins_on = (State == INSERT && p_ri);
if (revins_on)
undisplay_dollar();
revins_chars = 0;
revins_legal = 0;
revins_scol = -1;
#endif
if (!p_ek)
/* Disable bracketed paste mode, we won't recognize the escape
* sequences. */
out_str(T_BD);
/*
* 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())
{
#ifdef FEAT_MOUSE
/*
* 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
#endif
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;
#ifdef FEAT_MOUSE
where_paste_started.lnum = 0;
#endif
#ifdef FEAT_CINDENT
can_cindent = TRUE;
#endif
#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
#ifdef FEAT_INS_EXPAND
&& !pum_visible()
#endif
)
{
/* ":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())).
*/
if (curbuf->b_mod_set
&& curwin->w_p_wrap
&& !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
(int)curwin->w_wcol < mincol - tabstop_at(
get_nolist_virtcol(), curbuf->b_p_ts,
curbuf->b_p_vts_array)
#else
(int)curwin->w_wcol < mincol - curbuf->b_p_ts
#endif
&& curwin->w_wrow == W_WINROW(curwin)
+ 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
/*
* 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)
{
// Insert mode ended, possibly from a callback.
count = 0;
nomove = TRUE;
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
#ifdef FEAT_INS_EXPAND
/*
* 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;
#endif
/* 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
#ifdef FEAT_INS_EXPAND
if ((c == Ctrl_V || c == Ctrl_Q) && ctrl_x_mode_cmdline())
goto docomplete;
#endif
if (c == Ctrl_V || c == Ctrl_Q)
{
ins_ctrl_v();
c = Ctrl_V; /* pretend CTRL-V is last typed character */
continue;
}
#ifdef FEAT_CINDENT
if (cindent_on()
# ifdef FEAT_INS_EXPAND
&& ctrl_x_mode_none()
# endif
)
{
/* 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();
}
#endif
#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 */
#ifdef FEAT_CMDWIN
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;
}
#endif
#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;
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 (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_INS_EXPAND) && defined(FEAT_FIND_ID)
if (ctrl_x_mode_path_defines())
goto docomplete;
#endif
/* FALLTHROUGH */
case Ctrl_T: /* Make indent one shiftwidth greater. */
# ifdef FEAT_INS_EXPAND
if (c == Ctrl_T && ctrl_x_mode_thesaurus())
{
if (has_compl_option(FALSE))
goto docomplete;
break;
}
# endif
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 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;
#ifdef FEAT_MOUSE
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;
#endif
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_CURSORHOLD: /* Didn't type something for a while. */
ins_apply_autocmds(EVENT_CURSORHOLDI);
did_cursorhold = TRUE;
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> */
#ifdef FEAT_INS_EXPAND
if (pum_visible())
goto docomplete;
#endif
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:
#ifdef FEAT_INS_EXPAND
if (pum_visible())
goto docomplete;
#endif
ins_pageup();
break;
case K_DOWN: /* <Down> */
#ifdef FEAT_INS_EXPAND
if (pum_visible())
goto docomplete;
#endif
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:
#ifdef FEAT_INS_EXPAND
if (pum_visible())
goto docomplete;
#endif
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_INS_EXPAND) && 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
#ifdef FEAT_CMDWIN
if (cmdwin_type != 0)
{
/* Execute the command in the cmdline window. */
cmdwin_result = CAR;
goto doESCkey;
}
#endif
#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;
#if defined(FEAT_DIGRAPHS) || defined(FEAT_INS_EXPAND)
case Ctrl_K: /* digraph or keyword completion */
# ifdef FEAT_INS_EXPAND
if (ctrl_x_mode_dictionary())
{
if (has_compl_option(TRUE))
goto docomplete;
break;
}
# endif
# ifdef FEAT_DIGRAPHS
c = ins_digraph();
if (c == NUL)
break;
# endif
goto normalchar;
#endif
#ifdef FEAT_INS_EXPAND
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;
#endif
case Ctrl_L: /* Whole line completion after ^X */
#ifdef FEAT_INS_EXPAND
if (!ctrl_x_mode_whole_line())
#endif
{
/* CTRL-L with 'insertmode' set: Leave Insert mode */
if (p_im)
{
if (echeck_abbr(Ctrl_L + ABBR_OFF))
break;
goto doESCkey;
}
goto normalchar;
}
#ifdef FEAT_INS_EXPAND
/* 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_cont_status & CONT_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_cont_status = 0;
#ifdef FEAT_FOLDING
disable_fold_update--;
#endif
compl_busy = FALSE;
break;
#endif /* FEAT_INS_EXPAND */
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
#ifdef FEAT_SMARTINDENT
/* Try to perform smart-indenting. */
ins_try_si(c);
#endif
if (c == ' ')
{
inserted_space = TRUE;
#ifdef FEAT_CINDENT
if (inindent(0))
can_cindent = FALSE;
#endif
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;
#ifdef FEAT_CINDENT
if (can_cindent && cindent_on()
# ifdef FEAT_INS_EXPAND
&& ctrl_x_mode_normal()
# endif
)
{
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();
}
}
#endif /* FEAT_CINDENT */
} /* 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 UNUSED) /* 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;
#if defined(FEAT_CONCEAL)
/* Trigger CursorMoved if the cursor moved. Not when the popup menu is
* visible, the command might delete it. */
if (ready && (has_cursormovedI()
# if defined(FEAT_CONCEAL)
|| curwin->w_p_cole > 0
# endif
)
&& !EQUAL_POS(last_cursormoved, curwin->w_cursor)
# ifdef FEAT_INS_EXPAND
&& !pum_visible()
# endif
)
{
# 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_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;
}
#endif
/* Trigger TextChangedI if b_changedtick differs. */
if (ready && has_textchangedI()
&& curbuf->b_last_changedtick != CHANGEDTICK(curbuf)
#ifdef FEAT_INS_EXPAND
&& !pum_visible()
#endif
)
{
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 = CHANGEDTICK(curbuf);
if (tick != CHANGEDTICK(curbuf)) // see ins_apply_autocmds()
u_save(curwin->w_cursor.lnum,
(linenr_T)(curwin->w_cursor.lnum + 1));
}
#ifdef FEAT_INS_EXPAND
/* Trigger TextChangedP if b_changedtick 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));
}
#endif
#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 */
#ifdef FEAT_CMDL_INFO
add_to_showcmd_c(Ctrl_V);
#endif
c = get_literal();
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();
#ifdef FEAT_CMDL_INFO
clear_showcmd();
#endif
insert_special(c, FALSE, TRUE);
#ifdef FEAT_RIGHTLEFT
revins_chars++;
revins_legal++;
#endif
}
/*
* 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 halve of double-wide char */
#define PC_STATUS_LEFT 2 /* left halve 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)
{
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)
/*
* Return the effective prompt for the current buffer.
*/
char_u *
prompt_text(void)
{
if (curbuf->b_prompt_text == NULL)
return (char_u *)"% ";
return curbuf->b_prompt_text;
}
/*
* Prepare for prompt mode: Make sure the last line has the prompt text.
* Move the cursor to this line.
*/
static void
init_prompt(int cmdchar_todo)
{
char_u *prompt = prompt_text();
char_u *text;
curwin->w_cursor.lnum = curbuf->b_ml.ml_line_count;
text = ml_get_curline();
if (STRNCMP(text, prompt, STRLEN(prompt)) != 0)
{
// prompt is missing, insert it or append a line with it
if (*text == NUL)
ml_replace(curbuf->b_ml.ml_line_count, prompt, TRUE);
else
ml_append(curbuf->b_ml.ml_line_count, prompt, 0, FALSE);
curwin->w_cursor.lnum = curbuf->b_ml.ml_line_count;
coladvance((colnr_T)MAXCOL);
changed_bytes(curbuf->b_ml.ml_line_count, 0);
}
// Insert always starts after the prompt, allow editing text after it.
if (Insstart_orig.lnum != curwin->w_cursor.lnum
|| Insstart_orig.col != (int)STRLEN(prompt))
{
Insstart.lnum = curwin->w_cursor.lnum;
Insstart.col = (int)STRLEN(prompt);
Insstart_orig = Insstart;
Insstart_textlen = Insstart.col;
Insstart_blank_vcol = MAXCOL;
arrow_used = FALSE;
}
if (cmdchar_todo == 'A')
coladvance((colnr_T)MAXCOL);
if (cmdchar_todo == 'I' || curwin->w_cursor.col <= (int)STRLEN(prompt))
curwin->w_cursor.col = (int)STRLEN(prompt);
/* Make sure the cursor is in a valid position. */
check_cursor();
}
/*
* Return TRUE if the cursor is in the editable position of the prompt line.
*/
int
prompt_curpos_editable()
{
return curwin->w_cursor.lnum == curbuf->b_ml.ml_line_count
&& curwin->w_cursor.col >= (int)STRLEN(prompt_text());
}
#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 p_dollar is set: display a '$' at the end of the changed text
* Only works when cursor is in the line that changes.
*/
void
display_dollar(colnr_T col)
{
colnr_T save_col;
if (!redrawing())
return;
cursor_off();
save_col = curwin->w_cursor.col;
curwin->w_cursor.col = col;
if (has_mbyte)
{
char_u *p;
/* If on the last byte of a multi-byte move to the first byte. */
p = ml_get_curline();
curwin->w_cursor.col -= (*mb_head_off)(p, p + col);
}
curs_columns(FALSE); /* recompute w_wrow and w_wcol */
if (curwin->w_wcol < curwin->w_width)
{
edit_putchar('$', 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.
*/
static void
undisplay_dollar(void)
{
if (dollar_vcol >= 0)
{
dollar_vcol = -1;
redrawWinline(curwin, curwin->w_cursor.lnum);
}
}
/*
* Insert an indent (for <Tab> or CTRL-T) or delete an indent (for CTRL-D).
* Keep the cursor on the same character.
* type == INDENT_INC increase indent (for CTRL-T or <Tab>)
* type == INDENT_DEC decrease indent (for CTRL-D)
* type == INDENT_SET set indent to "amount"
* if round is TRUE, round the indent to 'shiftwidth' (only with _INC and _Dec).
*/
void
change_indent(
int type,
int amount,
int round,
int replaced, /* replaced character, put on replace stack */
int call_changed_bytes) /* call changed_bytes() */
{
int vcol;
int last_vcol;
int insstart_less; /* reduction for Insstart.col */
int new_cursor_col;
int i;
char_u *ptr;
int save_p_list;
int start_col;
colnr_T vc;
colnr_T orig_col = 0; /* init for GCC */
char_u *new_line, *orig_line = NULL; /* init for GCC */
/* VREPLACE mode needs to know what the line was like before changing */
if (State & VREPLACE_FLAG)
{
orig_line = vim_strsave(ml_get_curline()); /* Deal with NULL below */
orig_col = curwin->w_cursor.col;
}
/* for the following tricks we don't want list mode */
save_p_list = curwin->w_p_list;
curwin->w_p_list = FALSE;
vc = getvcol_nolist(&curwin->w_cursor);
vcol = vc;
/*
* For Replace mode we need to fix the replace stack later, which is only
* possible when the cursor is in the indent. Remember the number of
* characters before the cursor if it's possible.
*/
start_col = curwin->w_cursor.col;
/* determine offset from first non-blank */
new_cursor_col = curwin->w_cursor.col;
beginline(BL_WHITE);
new_cursor_col -= curwin->w_cursor.col;
insstart_less = curwin->w_cursor.col;
/*
* If the cursor is in the indent, compute how many screen columns the
* cursor is to the left of the first non-blank.
*/
if (new_cursor_col < 0)
vcol = get_indent() - vcol;
if (new_cursor_col > 0) /* can't fix replace stack */
start_col = -1;
/*
* Set the new indent. The cursor will be put on the first non-blank.
*/
if (type == INDENT_SET)
(void)set_indent(amount, call_changed_bytes ? SIN_CHANGED : 0);
else
{
int save_State = State;
/* Avoid being called recursively. */
if (State & VREPLACE_FLAG)
State = INSERT;
shift_line(type == INDENT_DEC, round, 1, call_changed_bytes);
State = save_State;
}
insstart_less -= curwin->w_cursor.col;
/*
* Try to put cursor on same character.
* If the cursor is at or after the first non-blank in the line,
* compute the cursor column relative to the column of the first
* non-blank character.
* If we are not in insert mode, leave the cursor on the first non-blank.
* If the cursor is before the first non-blank, position it relative
* to the first non-blank, counted in screen columns.
*/
if (new_cursor_col >= 0)
{
/*
* When changing the indent while the cursor is touching it, reset
* Insstart_col to 0.
*/
if (new_cursor_col == 0)
insstart_less = MAXCOL;
new_cursor_col += curwin->w_cursor.col;
}
else if (!(State & INSERT))
new_cursor_col = curwin->w_cursor.col;
else
{
/*
* Compute the screen column where the cursor should be.
*/
vcol = get_indent() - vcol;
curwin->w_virtcol = (colnr_T)((vcol < 0) ? 0 : vcol);
/*
* Advance the cursor until we reach the right screen column.
*/
vcol = last_vcol = 0;
new_cursor_col = -1;
ptr = ml_get_curline();
while (vcol <= (int)curwin->w_virtcol)
{
last_vcol = vcol;
if (has_mbyte && new_cursor_col >= 0)
new_cursor_col += (*mb_ptr2len)(ptr + new_cursor_col);
else
++new_cursor_col;
vcol += lbr_chartabsize(ptr, ptr + new_cursor_col, (colnr_T)vcol);
}
vcol = last_vcol;
/*
* May need to insert spaces to be able to position the cursor on
* the right screen column.
*/
if (vcol != (int)curwin->w_virtcol)
{
curwin->w_cursor.col = (colnr_T)new_cursor_col;
i = (int)curwin->w_virtcol - vcol;
ptr = alloc(i + 1);
if (ptr != NULL)
{
new_cursor_col += i;
ptr[i] = NUL;
while (--i >= 0)
ptr[i] = ' ';
ins_str(ptr);
vim_free(ptr);
}
}
/*
* When changing the indent while the cursor is in it, reset
* Insstart_col to 0.
*/
insstart_less = MAXCOL;
}
curwin->w_p_list = save_p_list;
if (new_cursor_col <= 0)
curwin->w_cursor.col = 0;
else
curwin->w_cursor.col = (colnr_T)new_cursor_col;
curwin->w_set_curswant = TRUE;
changed_cline_bef_curs();
/*
* May have to adjust the start of the insert.
*/
if (State & INSERT)
{
if (curwin->w_cursor.lnum == Insstart.lnum && Insstart.col != 0)
{
if ((int)Insstart.col <= insstart_less)
Insstart.col = 0;
else
Insstart.col -= insstart_less;
}
if ((int)ai_col <= insstart_less)
ai_col = 0;
else
ai_col -= insstart_less;
}
/*
* For REPLACE mode, may have to fix the replace stack, if it's possible.
* If the number of characters before the cursor decreased, need to pop a
* few characters from the replace stack.
* If the number of characters before the cursor increased, need to push a
* few NULs onto the replace stack.
*/
if (REPLACE_NORMAL(State) && start_col >= 0)
{
while (start_col > (int)curwin->w_cursor.col)
{
replace_join(0); /* remove a NUL from the replace stack */
--start_col;
}
while (start_col < (int)curwin->w_cursor.col || replaced)
{
replace_push(NUL);
if (replaced)
{
replace_push(replaced);
replaced = NUL;
}
++start_col;
}
}
/*
* For VREPLACE mode, we also have to fix the replace stack. In this case
* it is always possible because we backspace over the whole line and then
* put it back again the way we wanted it.
*/
if (State & VREPLACE_FLAG)
{
/* If orig_line didn't allocate, just return. At least we did the job,
* even if you can't backspace. */
if (orig_line == NULL)
return;
/* Save new line */
new_line = vim_strsave(ml_get_curline());
if (new_line == NULL)
return;
/* We only put back the new line up to the cursor */
new_line[curwin->w_cursor.col] = NUL;
/* Put back original line */
ml_replace(curwin->w_cursor.lnum, orig_line, FALSE);
curwin->w_cursor.col = orig_col;
/* Backspace from cursor to start of line */
backspace_until_column(0);
/* Insert new stuff into line again */
ins_bytes(new_line);
vim_free(new_line);
}
}
/*
* 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 REPLACE and 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 REPLACE and 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.
*/
int
get_literal(void)
{
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;
#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();
#ifdef FEAT_CMDL_INFO
if (!(State & CMDLINE) && MB_BYTE2LEN_CHECK(nc) == 1)
add_to_showcmd(nc);
#endif
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;
#endif
if (nc)
vungetc(nc);
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.
*/
#ifdef MACOS_X
/* 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.
*/
#ifdef EBCDIC
# define ISSPECIAL(c) ((c) < ' ' || (c) == '0' || (c) == '^')
#else
# define ISSPECIAL(c) ((c) < ' ' || (c) >= DEL || (c) == '0' || (c) == '^')
#endif
#define WHITECHAR(cc) (VIM_ISWHITE(cc) && (!enc_utf8 || !utf_iscomposing(utf_ptr2char(ml_get_cursor() + 1))))
/*
* "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;
#ifdef FEAT_COMMENTS
char_u *p;
#endif
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 VREPLACE mode.
* - 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;
#ifdef FEAT_COMMENTS
/* Check whether this character should end a comment. */
if (did_ai && (int)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;
#endif
did_ai = FALSE;
#ifdef FEAT_SMARTINDENT
did_si = FALSE;
can_si = FALSE;
can_si_back = FALSE;
#endif
/*
* 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)
#ifdef FEAT_CINDENT
&& !cindent_on()
#endif
#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);
}
}
}
/*
* Format text at the current insert position.
*
* If the INSCHAR_COM_LIST flag is present, then the value of second_indent
* will be the comment leader length sent to open_line().
*/
static void
internal_format(
int textwidth,
int second_indent,
int flags,
int format_only,
int c) /* character to be inserted (can be NUL) */
{
int cc;
int save_char = NUL;
int haveto_redraw = FALSE;
int fo_ins_blank = has_format_option(FO_INS_BLANK);
int fo_multibyte = has_format_option(FO_MBYTE_BREAK);
int fo_white_par = has_format_option(FO_WHITE_PAR);
int first_line = TRUE;
#ifdef FEAT_COMMENTS
colnr_T leader_len;
int no_leader = FALSE;
int do_comments = (flags & INSCHAR_DO_COM);
#endif
#ifdef FEAT_LINEBREAK
int has_lbr = curwin->w_p_lbr;
/* make sure win_lbr_chartabsize() counts correctly */
curwin->w_p_lbr = FALSE;
#endif
/*
* When 'ai' is off we don't want a space under the cursor to be
* deleted. Replace it with an 'x' temporarily.
*/
if (!curbuf->b_p_ai && !(State & VREPLACE_FLAG))
{
cc = gchar_cursor();
if (VIM_ISWHITE(cc))
{
save_char = cc;
pchar_cursor('x');
}
}
/*
* Repeat breaking lines, until the current line is not too long.
*/
while (!got_int)
{
int startcol; /* Cursor column at entry */
int wantcol; /* column at textwidth border */
int foundcol; /* column for start of spaces */
int end_foundcol = 0; /* column for start of word */
colnr_T len;
colnr_T virtcol;
int orig_col = 0;
char_u *saved_text = NULL;
colnr_T col;
colnr_T end_col;
int wcc; // counter for whitespace chars
virtcol = get_nolist_virtcol()
+ char2cells(c != NUL ? c : gchar_cursor());
if (virtcol <= (colnr_T)textwidth)
break;
#ifdef FEAT_COMMENTS
if (no_leader)
do_comments = FALSE;
else if (!(flags & INSCHAR_FORMAT)
&& has_format_option(FO_WRAP_COMS))
do_comments = TRUE;
/* Don't break until after the comment leader */
if (do_comments)
leader_len = get_leader_len(ml_get_curline(), NULL, FALSE, TRUE);
else
leader_len = 0;
/* If the line doesn't start with a comment leader, then don't
* start one in a following broken line. Avoids that a %word
* moved to the start of the next line causes all following lines
* to start with %. */
if (leader_len == 0)
no_leader = TRUE;
#endif
if (!(flags & INSCHAR_FORMAT)
#ifdef FEAT_COMMENTS
&& leader_len == 0
#endif
&& !has_format_option(FO_WRAP))
break;
if ((startcol = curwin->w_cursor.col) == 0)
break;
/* find column of textwidth border */
coladvance((colnr_T)textwidth);
wantcol = curwin->w_cursor.col;
curwin->w_cursor.col = startcol;
foundcol = 0;
/*
* Find position to break at.
* Stop at first entered white when 'formatoptions' has 'v'
*/
while ((!fo_ins_blank && !has_format_option(FO_INS_VI))
|| (flags & INSCHAR_FORMAT)
|| curwin->w_cursor.lnum != Insstart.lnum
|| curwin->w_cursor.col >= Insstart.col)
{
if (curwin->w_cursor.col == startcol && c != NUL)
cc = c;
else
cc = gchar_cursor();
if (WHITECHAR(cc))
{
/* remember position of blank just before text */
end_col = curwin->w_cursor.col;
// find start of sequence of blanks
wcc = 0;
while (curwin->w_cursor.col > 0 && WHITECHAR(cc))
{
dec_cursor();
cc = gchar_cursor();
// Increment count of how many whitespace chars in this
// group; we only need to know if it's more than one.
if (wcc < 2)
wcc++;
}
if (curwin->w_cursor.col == 0 && WHITECHAR(cc))
break; /* only spaces in front of text */
// Don't break after a period when 'formatoptions' has 'p' and
// there are less than two spaces.
if (has_format_option(FO_PERIOD_ABBR) && cc == '.' && wcc < 2)
continue;
#ifdef FEAT_COMMENTS
/* Don't break until after the comment leader */
if (curwin->w_cursor.col < leader_len)
break;
#endif
if (has_format_option(FO_ONE_LETTER))
{
/* do not break after one-letter words */
if (curwin->w_cursor.col == 0)
break; /* one-letter word at begin */
#ifdef FEAT_COMMENTS
/* do not break "#a b" when 'tw' is 2 */
if (curwin->w_cursor.col <= leader_len)
break;
#endif
col = curwin->w_cursor.col;
dec_cursor();
cc = gchar_cursor();
if (WHITECHAR(cc))
continue; /* one-letter, continue */
curwin->w_cursor.col = col;
}
inc_cursor();
end_foundcol = end_col + 1;
foundcol = curwin->w_cursor.col;
if (curwin->w_cursor.col <= (colnr_T)wantcol)
break;
}
else if (cc >= 0x100 && fo_multibyte)
{
/* Break after or before a multi-byte character. */
if (curwin->w_cursor.col != startcol)
{
#ifdef FEAT_COMMENTS
/* Don't break until after the comment leader */
if (curwin->w_cursor.col < leader_len)
break;
#endif
col = curwin->w_cursor.col;
inc_cursor();
/* Don't change end_foundcol if already set. */
if (foundcol != curwin->w_cursor.col)
{
foundcol = curwin->w_cursor.col;
end_foundcol = foundcol;
if (curwin->w_cursor.col <= (colnr_T)wantcol)
break;
}
curwin->w_cursor.col = col;
}
if (curwin->w_cursor.col == 0)
break;
col = curwin->w_cursor.col;
dec_cursor();
cc = gchar_cursor();
if (WHITECHAR(cc))
continue; /* break with space */
#ifdef FEAT_COMMENTS
/* Don't break until after the comment leader */
if (curwin->w_cursor.col < leader_len)
break;
#endif
curwin->w_cursor.col = col;
foundcol = curwin->w_cursor.col;
end_foundcol = foundcol;
if (curwin->w_cursor.col <= (colnr_T)wantcol)
break;
}
if (curwin->w_cursor.col == 0)
break;
dec_cursor();
}
if (foundcol == 0) /* no spaces, cannot break line */
{
curwin->w_cursor.col = startcol;
break;
}
/* Going to break the line, remove any "$" now. */
undisplay_dollar();
/*
* Offset between cursor position and line break is used by replace
* stack functions. VREPLACE does not use this, and backspaces
* over the text instead.
*/
if (State & VREPLACE_FLAG)
orig_col = startcol; /* Will start backspacing from here */
else
replace_offset = startcol - end_foundcol;
/*
* adjust startcol for spaces that will be deleted and
* characters that will remain on top line
*/
curwin->w_cursor.col = foundcol;
while ((cc = gchar_cursor(), WHITECHAR(cc))
&& (!fo_white_par || curwin->w_cursor.col < startcol))
inc_cursor();
startcol -= curwin->w_cursor.col;
if (startcol < 0)
startcol = 0;
if (State & VREPLACE_FLAG)
{
/*
* In VREPLACE mode, we will backspace over the text to be
* wrapped, so save a copy now to put on the next line.
*/
saved_text = vim_strsave(ml_get_cursor());
curwin->w_cursor.col = orig_col;
if (saved_text == NULL)
break; /* Can't do it, out of memory */
saved_text[startcol] = NUL;
/* Backspace over characters that will move to the next line */
if (!fo_white_par)
backspace_until_column(foundcol);
}
else
{
/* put cursor after pos. to break line */
if (!fo_white_par)
curwin->w_cursor.col = foundcol;
}
/*
* Split the line just before the margin.
* Only insert/delete lines, but don't really redraw the window.
*/
open_line(FORWARD, OPENLINE_DELSPACES + OPENLINE_MARKFIX
+ (fo_white_par ? OPENLINE_KEEPTRAIL : 0)
#ifdef FEAT_COMMENTS
+ (do_comments ? OPENLINE_DO_COM : 0)
+ ((flags & INSCHAR_COM_LIST) ? OPENLINE_COM_LIST : 0)
#endif
, ((flags & INSCHAR_COM_LIST) ? second_indent : old_indent));
if (!(flags & INSCHAR_COM_LIST))
old_indent = 0;
replace_offset = 0;
if (first_line)
{
if (!(flags & INSCHAR_COM_LIST))
{
/*
* This section is for auto-wrap of numeric lists. When not
* in insert mode (i.e. format_lines()), the INSCHAR_COM_LIST
* flag will be set and open_line() will handle it (as seen
* above). The code here (and in get_number_indent()) will
* recognize comments if needed...
*/
if (second_indent < 0 && has_format_option(FO_Q_NUMBER))
second_indent =
get_number_indent(curwin->w_cursor.lnum - 1);
if (second_indent >= 0)
{
if (State & VREPLACE_FLAG)
change_indent(INDENT_SET, second_indent,
FALSE, NUL, TRUE);
else
#ifdef FEAT_COMMENTS
if (leader_len > 0 && second_indent - leader_len > 0)
{
int i;
int padding = second_indent - leader_len;
/* We started at the first_line of a numbered list
* that has a comment. the open_line() function has
* inserted the proper comment leader and positioned
* the cursor at the end of the split line. Now we
* add the additional whitespace needed after the
* comment leader for the numbered list. */
for (i = 0; i < padding; i++)
ins_str((char_u *)" ");
}
else
{
#endif
(void)set_indent(second_indent, SIN_CHANGED);
#ifdef FEAT_COMMENTS
}
#endif
}
}
first_line = FALSE;
}
if (State & VREPLACE_FLAG)
{
/*
* In VREPLACE mode we have backspaced over the text to be
* moved, now we re-insert it into the new line.
*/
ins_bytes(saved_text);
vim_free(saved_text);
}
else
{
/*
* Check if cursor is not past the NUL off the line, cindent
* may have added or removed indent.
*/
curwin->w_cursor.col += startcol;
len = (colnr_T)STRLEN(ml_get_curline());
if (curwin->w_cursor.col > len)
curwin->w_cursor.col = len;
}
haveto_redraw = TRUE;
#ifdef FEAT_CINDENT
can_cindent = TRUE;
#endif
/* moved the cursor, don't autoindent or cindent now */
did_ai = FALSE;
#ifdef FEAT_SMARTINDENT
did_si = FALSE;
can_si = FALSE;
can_si_back = FALSE;
#endif
line_breakcheck();
}
if (save_char != NUL) /* put back space after cursor */
pchar_cursor(save_char);
#ifdef FEAT_LINEBREAK
curwin->w_p_lbr = has_lbr;
#endif
if (!format_only && haveto_redraw)
{
update_topline();
redraw_curbuf_later(VALID);
}
}
/*
* Called after inserting or deleting text: When 'formatoptions' includes the
* 'a' flag format from the current line until the end of the paragraph.
* Keep the cursor at the same position relative to the text.
* The caller must have saved the cursor line for undo, following ones will be
* saved here.
*/
void
auto_format(
int trailblank, /* when TRUE also format with trailing blank */
int prev_line) /* may start in previous line */
{
pos_T pos;
colnr_T len;
char_u *old;
char_u *new, *pnew;
int wasatend;
int cc;
if (!has_format_option(FO_AUTO))
return;
pos = curwin->w_cursor;
old = ml_get_curline();
/* may remove added space */
check_auto_format(FALSE);
/* Don't format in Insert mode when the cursor is on a trailing blank, the
* user might insert normal text next. Also skip formatting when "1" is
* in 'formatoptions' and there is a single character before the cursor.
* Otherwise the line would be broken and when typing another non-white
* next they are not joined back together. */
wasatend = (pos.col == (colnr_T)STRLEN(old));
if (*old != NUL && !trailblank && wasatend)
{
dec_cursor();
cc = gchar_cursor();
if (!WHITECHAR(cc) && curwin->w_cursor.col > 0
&& has_format_option(FO_ONE_LETTER))
dec_cursor();
cc = gchar_cursor();
if (WHITECHAR(cc))
{
curwin->w_cursor = pos;
return;
}
curwin->w_cursor = pos;
}
#ifdef FEAT_COMMENTS
/* With the 'c' flag in 'formatoptions' and 't' missing: only format
* comments. */
if (has_format_option(FO_WRAP_COMS) && !has_format_option(FO_WRAP)
&& get_leader_len(old, NULL, FALSE, TRUE) == 0)
return;
#endif
/*
* May start formatting in a previous line, so that after "x" a word is
* moved to the previous line if it fits there now. Only when this is not
* the start of a paragraph.
*/
if (prev_line && !paragraph_start(curwin->w_cursor.lnum))
{
--curwin->w_cursor.lnum;
if (u_save_cursor() == FAIL)
return;
}
/*
* Do the formatting and restore the cursor position. "saved_cursor" will
* be adjusted for the text formatting.
*/
saved_cursor = pos;
format_lines((linenr_T)-1, FALSE);
curwin->w_cursor = saved_cursor;
saved_cursor.lnum = 0;
if (curwin->w_cursor.lnum > curbuf->b_ml.ml_line_count)
{
/* "cannot happen" */
curwin->w_cursor.lnum = curbuf->b_ml.ml_line_count;
coladvance((colnr_T)MAXCOL);
}
else
check_cursor_col();
/* Insert mode: If the cursor is now after the end of the line while it
* previously wasn't, the line was broken. Because of the rule above we
* need to add a space when 'w' is in 'formatoptions' to keep a paragraph
* formatted. */
if (!wasatend && has_format_option(FO_WHITE_PAR))
{
new = ml_get_curline();
len = (colnr_T)STRLEN(new);
if (curwin->w_cursor.col == len)
{
pnew = vim_strnsave(new, len + 2);
pnew[len] = ' ';
pnew[len + 1] = NUL;
ml_replace(curwin->w_cursor.lnum, pnew, FALSE);
/* remove the space later */
did_add_space = TRUE;
}
else
/* may remove added space */
check_auto_format(FALSE);
}
check_cursor();
}
/*
* When an extra space was added to continue a paragraph for auto-formatting,
* delete it now. The space must be under the cursor, just after the insert
* position.
*/
static void
check_auto_format(
int end_insert) /* TRUE when ending Insert mode */
{
int c = ' ';
int cc;
if (did_add_space)
{
cc = gchar_cursor();
if (!WHITECHAR(cc))
/* Somehow the space was removed already. */
did_add_space = FALSE;
else
{
if (!end_insert)
{
inc_cursor();
c = gchar_cursor();
dec_cursor();
}
if (c != NUL)
{
/* The space is no longer at the end of the line, delete it. */
del_char(FALSE);
did_add_space = FALSE;
}
}
}
}
/*
* Find out textwidth to be used for formatting:
* if 'textwidth' option is set, use it
* else if 'wrapmargin' option is set, use curwin->w_width - 'wrapmargin'
* if invalid value, use 0.
* Set default to window width (maximum 79) for "gq" operator.
*/
int
comp_textwidth(
int ff) /* force formatting (for "gq" command) */
{
int textwidth;
textwidth = curbuf->b_p_tw;
if (textwidth == 0 && curbuf->b_p_wm)
{
/* The width is the window width minus 'wrapmargin' minus all the
* things that add to the margin. */
textwidth = curwin->w_width - curbuf->b_p_wm;
#ifdef FEAT_CMDWIN
if (cmdwin_type != 0)
textwidth -= 1;
#endif
#ifdef FEAT_FOLDING
textwidth -= curwin->w_p_fdc;
#endif
#ifdef FEAT_SIGNS
if (signcolumn_on(curwin))
textwidth -= 1;
#endif
if (curwin->w_p_nu || curwin->w_p_rnu)
textwidth -= 8;
}
if (textwidth < 0)
textwidth = 0;
if (ff && textwidth == 0)
{
textwidth = curwin->w_width - 1;
if (textwidth > 79)
textwidth = 79;
}
return textwidth;
}
/*
* 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(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();
if (did_restart_edit == 0 || (ptr != NULL
&& (int)STRLEN(ptr) > new_insert_skip))
{
vim_free(last_insert);
last_insert = ptr;
last_insert_skip = 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 && VIsual.lnum == curwin->w_cursor.lnum)
{
int len = (int)STRLEN(ml_get_curline());
if (VIsual.col > len)
{
VIsual.col = len;
VIsual.coladd = 0;
}
}
}
}
did_ai = FALSE;
#ifdef FEAT_SMARTINDENT
did_si = FALSE;
can_si = FALSE;
can_si_back = FALSE;
#endif
/* 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)
{
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;
}
}
/*
* 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 && (ve_flags & VE_ONEMORE) == 0)
return FAIL;
curwin->w_cursor.col += l;
curwin->w_set_curswant = TRUE;
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 ((*p_sbr == 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;
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();
return OK;
}
int
cursor_up(
long n,
int upd_topline) /* When TRUE: update topline */
{
linenr_T lnum;
if (n > 0)
{
lnum = curwin->w_cursor.lnum;
/* This fails if the cursor is already in the first line or the count
* is larger than the line number and '-' is in 'cpoptions' */
if (lnum <= 1 || (n >= lnum && vim_strchr(p_cpo, CPO_MINUS) != NULL))
return FAIL;
if (n >= lnum)
lnum = 1;
else
#ifdef FEAT_FOLDING
if (hasAnyFolding(curwin))
{
/*
* Count each sequence of folded lines as one logical line.
*/
/* go to the start of the current fold */
(void)hasFolding(lnum, &lnum, 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 & INSERT) || (fdo_flags & FDO_ALL)))
(void)hasFolding(lnum, &lnum, NULL);
}
if (lnum < 1)
lnum = 1;
}
else
#endif
lnum -= n;
curwin->w_cursor.lnum = lnum;
}
/* 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;
}
/*
* Cursor down a number of logical lines.
*/
int
cursor_down(
long n,
int upd_topline) /* When TRUE: update topline */
{
linenr_T lnum;
if (n > 0)
{
lnum = curwin->w_cursor.lnum;
#ifdef FEAT_FOLDING
/* Move to last line of fold, will fail if it's the end-of-file. */
(void)hasFolding(lnum, NULL, &lnum);
#endif
/* This fails if the cursor is already in the last line or would move
* beyond the last line and '-' is in 'cpoptions' */
if (lnum >= curbuf->b_ml.ml_line_count
|| (lnum + n > curbuf->b_ml.ml_line_count
&& vim_strchr(p_cpo, CPO_MINUS) != NULL))
return FAIL;
if (lnum + n >= curbuf->b_ml.ml_line_count)
lnum = curbuf->b_ml.ml_line_count;
else
#ifdef FEAT_FOLDING
if (hasAnyFolding(curwin))
{
linenr_T last;
/* count each sequence of folded lines as one logical line */
while (n--)
{
if (hasFolding(lnum, NULL, &last))
lnum = last + 1;
else
++lnum;
if (lnum >= curbuf->b_ml.ml_line_count)
break;
}
if (lnum > curbuf->b_ml.ml_line_count)
lnum = curbuf->b_ml.ml_line_count;
}
else
#endif
lnum += n;
curwin->w_cursor.lnum = lnum;
}
/* 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_noinstext));
return FAIL;
}
/* may want to stuff the command character, to start Insert mode */
if (c != NUL)
stuffcharReadbuff(c);
if ((esc_ptr = (char_u *)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'
? IF_EB("\026\060\064\070", CTRL_V_STR "xf0")
: IF_EB("\026^", CTRL_V_STR "^")));
}
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)
{
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(sizeof(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.
*/
static 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 REPLACE or VREPLACE mode.
*/
static void
replace_pop_ins(void)
{
int cc;
int oldState = State;
State = NORMAL; /* don't want 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;
}
else
{
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_TEXT_PROP
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 = STRLEN(ml_get_curline());
++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 = (int)STRLEN(ml_get_cursor());
replace_push(cc);
}
else
{
pchar_cursor(cc);
if (State & VREPLACE_FLAG)
orig_len = (int)STRLEN(ml_get_cursor()) - 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 = (int)STRLEN(p) - 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_TEXT_PROP
if (curbuf->b_has_textprop)
{
size_t len_now = STRLEN(ml_get_curline());
--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 --> ' ' -- / -- */
#ifdef EBCDIC
else if (islower(c))
#else
/* 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')
#endif
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";
#ifdef EBCDIC
/* see note about islower() above */
if (!islower(c))
#else
if (c < 'a' || c > 'z')
#endif
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);
#ifdef FEAT_CMDL_INFO
add_to_showcmd_c(Ctrl_R);
#endif
}
#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;
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;
#ifdef FEAT_CMDL_INFO
add_to_showcmd_c(literally);
#endif
regname = plain_vgetc();
LANGMAP_ADJUST(regname, TRUE);
}
--no_mapping;
#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, 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
#ifdef FEAT_CMDL_INFO
clear_showcmd();
#endif
/* 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;
#ifdef FEAT_INS_EXPAND
/* Right after CTRL-X the cursor will be after the ruler. */
setcursor();
#endif
/*
* Don't map the second key. This also prevents the mode message to be
* deleted when ESC is hit.
*/
++no_mapping;
c = plain_vgetc();
--no_mapping;
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;
/* 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 *)"", LANGMAP, FALSE))
{
/* ":lmap" mappings exists, Toggle use of ":lmap" mappings. */
if (State & LANGMAP)
{
curbuf->b_p_iminsert = B_IMODE_NONE;
State &= ~LANGMAP;
}
else
{
curbuf->b_p_iminsert = B_IMODE_LMAP;
State |= 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 &= ~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_SPELL
check_spell_redraw();
#endif
#if defined(FEAT_HANGULIN)
# if defined(ESC_CHG_TO_ENG_MODE)
hangul_input_state_set(0);
# endif
if (composing_hangul)
{
push_raw_key(composing_hangul_buffer, 2);
composing_hangul = 0;
}
#endif
temp = curwin->w_cursor.col;
if (disabled_redraw)
{
--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();
}
/* 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.keepjumps)
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 || ve_flags == VE_ALL)
{
oneleft();
if (restart_edit != NUL)
++curwin->w_cursor.coladd;
}
else
{
--curwin->w_cursor.col;
/* 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 & LANGMAP))
im_save_status(&curbuf->b_p_iminsert);
im_set_active(FALSE);
#endif
State = NORMAL;
/* need to position cursor again (e.g. when on a TAB ) */
changed_cline_bef_curs();
#ifdef FEAT_MOUSE
setmouse();
#endif
#ifdef CURSOR_SHAPE
ui_cursor_shape(); /* may show different cursor shape */
#endif
if (!p_ek)
/* Re-enable bracketed paste mode. */
out_str(T_BE);
// 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 == 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)
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 == VREPLACE ? "v"
: "r"), 1);
#endif
ins_apply_autocmds(EVENT_INSERTCHANGE);
if (State & REPLACE_FLAG)
State = INSERT | (State & LANGMAP);
else
State = replaceState | (State & LANGMAP);
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)
{
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;
#ifdef FEAT_SMARTINDENT
did_si = FALSE;
can_si = FALSE;
can_si_back = FALSE;
#endif
#ifdef FEAT_CINDENT
can_cindent = FALSE; /* no cindenting after ^D or ^T */
#endif
}
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;
#ifdef FEAT_SMARTINDENT
did_si = FALSE;
can_si = FALSE;
can_si_back = FALSE;
#endif
AppendCharToRedobuff(K_DEL);
}
/*
* Delete one character for ins_bs().
*/
static void
ins_bs_one(colnr_T *vcolp)
{
dec_cursor();
getvcol(curwin, &curwin->w_cursor, vcolp, NULL, NULL);
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 */
/*
* 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
|| (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);
#ifdef FEAT_CINDENT
if (in_indent)
can_cindent = FALSE;
#endif
#ifdef FEAT_COMMENTS
end_comment_pending = NUL; /* After BS, don't auto-end comment */
#endif
#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 = (colnr_T)STRLEN(ml_get(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,
TRUE);
int len;
len = (int)STRLEN(ptr);
if (len > 0 && ptr[len - 1] == ' ')
ptr[len - 1] = NUL;
}
(void)do_join(2, FALSE, FALSE, FALSE, FALSE);
if (temp == NUL && gchar_cursor() != NUL)
inc_cursor();
}
else
dec_cursor();
/*
* In 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 NORMAL state, to
* prevent ins_char() from replacing characters and
* avoiding showmatch().
*/
oldState = State;
State = 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
#ifdef FEAT_CINDENT
|| cindent_on()
#endif
)
#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;
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))))))
{
int ts;
colnr_T vcol;
colnr_T want_vcol;
colnr_T start_vcol;
*inserted_space_p = FALSE;
/* Compute the virtual column where we want to be. Since
* 'showbreak' may get in the way, need to get the last column of
* the previous character. */
getvcol(curwin, &curwin->w_cursor, &vcol, NULL, NULL);
start_vcol = vcol;
dec_cursor();
getvcol(curwin, &curwin->w_cursor, NULL, NULL, &want_vcol);
inc_cursor();
#ifdef FEAT_VARTABS
if (p_sta && in_indent)
{
ts = (int)get_sw_value(curbuf);
want_vcol = (want_vcol / ts) * ts;
}
else
want_vcol = tabstop_start(want_vcol, get_sts_value(),
curbuf->b_p_vsts_array);
#else
if (p_sta && in_indent)
ts = (int)get_sw_value(curbuf);
else
ts = (int)get_sts_value();
want_vcol = (want_vcol / ts) * ts;
#endif
/* delete characters until we are at or before want_vcol */
while (vcol > want_vcol
&& (cc = *(ml_get_cursor() - 1), VIM_ISWHITE(cc)))
ins_bs_one(&vcol);
/* insert extra spaces until we are at want_vcol */
while (vcol < want_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);
}
getvcol(curwin, &curwin->w_cursor, &vcol, NULL, NULL);
}
/* If we are now back where we started delete one character. Can
* happen when using 'sts' and 'linebreak'. */
if (vcol >= start_vcol)
ins_bs_one(&vcol);
}
/*
* Delete upto 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
&& (curwin->w_cursor.lnum != Insstart_orig.lnum
|| curwin->w_cursor.col != Insstart_orig.col)));
}
did_backspace = TRUE;
}
#ifdef FEAT_SMARTINDENT
did_si = FALSE;
can_si = FALSE;
can_si_back = FALSE;
#endif
if (curwin->w_cursor.col <= 1)
did_ai = FALSE;
/*
* 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;
}
#ifdef FEAT_MOUSE
static void
ins_mouse(int c)
{
pos_T tpos;
win_T *old_curwin = curwin;
# ifdef FEAT_GUI
/* When GUI is active, also move/paste when 'mouse' is empty */
if (!gui.in_use)
# endif
if (!mouse_has(MOUSE_INSERT))
return;
undisplay_dollar();
tpos = curwin->w_cursor;
if (do_mouse(NULL, c, BACKWARD, 1L, 0))
{
win_T *new_curwin = curwin;
if (curwin != old_curwin && win_valid(old_curwin))
{
/* Mouse took us to another window. We need to go back to the
* previous one to stop insert there properly. */
curwin = old_curwin;
curbuf = curwin->w_buffer;
#ifdef FEAT_JOB_CHANNEL
if (bt_prompt(curbuf))
// Restart Insert mode when re-entering the prompt buffer.
curbuf->b_prompt_insert = 'A';
#endif
}
start_arrow(curwin == old_curwin ? &tpos : NULL);
if (curwin != new_curwin && win_valid(new_curwin))
{
curwin = new_curwin;
curbuf = curwin->w_buffer;
}
# ifdef FEAT_CINDENT
can_cindent = TRUE;
# endif
}
/* redraw status lines (in case another window became active) */
redraw_statuslines();
}
static void
ins_mousescroll(int dir)
{
pos_T tpos;
win_T *old_curwin = curwin, *wp;
# ifdef FEAT_INS_EXPAND
int did_scroll = FALSE;
# endif
tpos = curwin->w_cursor;
if (mouse_row >= 0 && mouse_col >= 0)
{
int row, col;
row = mouse_row;
col = mouse_col;
/* find the window at the pointer coordinates */
wp = mouse_find_win(&row, &col);
if (wp == NULL)
return;
curwin = wp;
curbuf = curwin->w_buffer;
}
if (curwin == old_curwin)
undisplay_dollar();
# ifdef FEAT_INS_EXPAND
/* Don't scroll the window in which completion is being done. */
if (!pum_visible() || curwin != old_curwin)
# endif
{
if (dir == MSCR_DOWN || dir == MSCR_UP)
{
if (mod_mask & (MOD_MASK_SHIFT | MOD_MASK_CTRL))
scroll_redraw(dir,
(long)(curwin->w_botline - curwin->w_topline));
else
scroll_redraw(dir, 3L);
}
#ifdef FEAT_GUI
else
{
int val, step = 6;
if (mod_mask & (MOD_MASK_SHIFT | MOD_MASK_CTRL))
step = curwin->w_width;
val = curwin->w_leftcol + (dir == MSCR_RIGHT ? -step : step);
if (val < 0)
val = 0;
gui_do_horiz_scroll(val, TRUE);
}
#endif
# ifdef FEAT_INS_EXPAND
did_scroll = TRUE;
# endif
}
curwin->w_redr_status = TRUE;
curwin = old_curwin;
curbuf = curwin->w_buffer;
# ifdef FEAT_INS_EXPAND
/* The popup menu may overlay the window, need to redraw it.
* TODO: Would be more efficient to only redraw the windows that are
* overlapped by the popup menu. */
if (pum_visible() && did_scroll)
{
redraw_all_later(NOT_VALID);
ins_compl_show_pum();
}
# endif
if (!EQUAL_POS(curwin->w_cursor, tpos))
{
start_arrow(&tpos);
# ifdef FEAT_CINDENT
can_cindent = TRUE;
# endif
}
}
#endif
/*
* 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 (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((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)
// When CTRL-C was encountered the typeahead will be flushed and we
// won't get the end sequence.
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:
if (gap != NULL && ga_grow(gap, idx) == 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((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);
# ifdef FEAT_CINDENT
can_cindent = TRUE;
# endif
}
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);
# ifdef FEAT_CINDENT
can_cindent = TRUE;
# endif
}
}
void
ins_horscroll(void)
{
pos_T tpos;
undisplay_dollar();
tpos = curwin->w_cursor;
if (gui_do_horiz_scroll(scrollbar_value, FALSE))
{
start_arrow(&tpos);
# ifdef FEAT_CINDENT
can_cindent = TRUE;
# endif
}
}
#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()
{
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()
{
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(VALID);
start_arrow(&tpos);
#ifdef FEAT_CINDENT
can_cindent = TRUE;
#endif
}
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 (onepage(BACKWARD, 1L) == OK)
{
start_arrow(&tpos);
#ifdef FEAT_CINDENT
can_cindent = TRUE;
#endif
}
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(VALID);
start_arrow(&tpos);
#ifdef FEAT_CINDENT
can_cindent = TRUE;
#endif
}
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 (onepage(FORWARD, 1L) == OK)
{
start_arrow(&tpos);
#ifdef FEAT_CINDENT
can_cindent = TRUE;
#endif
}
else
vim_beep(BO_CRSR);
}
#ifdef FEAT_DND
static void
ins_drop(void)
{
do_put('~', 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);
#ifdef FEAT_CINDENT
if (ind)
can_cindent = FALSE;
#endif
/*
* 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;
#ifdef FEAT_SMARTINDENT
did_si = FALSE;
can_si = FALSE;
can_si_back = FALSE;
#endif
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 VREPLACE mode, 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;
/*
* Get the current line. For VREPLACE mode, 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_strsave(ml_get_curline());
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);
/* Use as many TABs as possible. Beware of 'breakindent', 'showbreak'
* and 'linebreak' adding extra virtual columns. */
while (VIM_ISWHITE(*ptr))
{
i = lbr_chartabsize(NULL, (char_u *)"\t", vcol);
if (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;
vcol += i;
}
if (change_col >= 0)
{
int repl_off = 0;
char_u *line = ptr;
/* Skip over the spaces we need. */
while (vcol < want_vcol && *ptr == ' ')
{
vcol += lbr_chartabsize(line, ptr, vcol);
++ptr;
++repl_off;
}
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)
{
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_TEXT_PROP
curbuf->b_ml.ml_line_len -= i;
#endif
}
#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 VREPLACE mode, 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 VREPLACE mode, 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 += (colnr_T)STRLEN(ml_get_cursor());
#endif
AppendToRedobuff(NL_STR);
i = open_line(FORWARD,
#ifdef FEAT_COMMENTS
has_format_option(FO_RET_COMS) ? OPENLINE_DO_COM :
#endif
0, old_indent);
old_indent = 0;
#ifdef FEAT_CINDENT
can_cindent = TRUE;
#endif
#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;
#ifdef FEAT_CMDL_INFO
add_to_showcmd_c(Ctrl_K);
#endif
}
#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 */
{
#ifdef FEAT_CMDL_INFO
clear_showcmd();
#endif
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;
}
#ifdef FEAT_CMDL_INFO
add_to_showcmd_c(c);
#endif
}
++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 = getdigraph(c, cc, TRUE);
#ifdef FEAT_CMDL_INFO
clear_showcmd();
#endif
return c;
}
}
#ifdef FEAT_CMDL_INFO
clear_showcmd();
#endif
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;
int temp;
char_u *ptr, *prev_ptr;
char_u *line;
if (lnum < 1 || lnum > curbuf->b_ml.ml_line_count)
{
vim_beep(BO_COPY);
return NUL;
}
/* try to advance to the cursor column */
temp = 0;
line = ptr = ml_get(lnum);
prev_ptr = ptr;
validate_virtcol();
while ((colnr_T)temp < curwin->w_virtcol && *ptr != NUL)
{
prev_ptr = ptr;
temp += lbr_chartabsize_adv(line, &ptr, (colnr_T)temp);
}
if ((colnr_T)temp > curwin->w_virtcol)
ptr = prev_ptr;
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;
#ifdef FEAT_INS_EXPAND
if (ctrl_x_mode_scroll())
{
if (c == Ctrl_Y)
scrolldown_clamp();
else
scrollup_clamp();
redraw_later(VALID);
}
else
#endif
{
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 && !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;
}
#ifdef FEAT_SMARTINDENT
/*
* Try to do some very smart auto-indenting.
* Used when inserting a "normal" character.
*/
static void
ins_try_si(int c)
{
pos_T *pos, old_pos;
char_u *ptr;
int i;
int temp;
/*
* do some very smart indenting when entering '{' or '}'
*/
if (((did_si || can_si_back) && c == '{') || (can_si && c == '}'))
{
/*
* for '}' set indent equal to indent of line containing matching '{'
*/
if (c == '}' && (pos = findmatch(NULL, '{')) != NULL)
{
old_pos = curwin->w_cursor;
/*
* If the matching '{' has a ')' immediately before it (ignoring
* white-space), then line up with the start of the line
* containing the matching '(' if there is one. This handles the
* case where an "if (..\n..) {" statement continues over multiple
* lines -- webb
*/
ptr = ml_get(pos->lnum);
i = pos->col;
if (i > 0) /* skip blanks before '{' */
while (--i > 0 && VIM_ISWHITE(ptr[i]))
;
curwin->w_cursor.lnum = pos->lnum;
curwin->w_cursor.col = i;
if (ptr[i] == ')' && (pos = findmatch(NULL, '(')) != NULL)
curwin->w_cursor = *pos;
i = get_indent();
curwin->w_cursor = old_pos;
if (State & VREPLACE_FLAG)
change_indent(INDENT_SET, i, FALSE, NUL, TRUE);
else
(void)set_indent(i, SIN_CHANGED);
}
else if (curwin->w_cursor.col > 0)
{
/*
* when inserting '{' after "O" reduce indent, but not
* more than indent of previous line
*/
temp = TRUE;
if (c == '{' && can_si_back && curwin->w_cursor.lnum > 1)
{
old_pos = curwin->w_cursor;
i = get_indent();
while (curwin->w_cursor.lnum > 1)
{
ptr = skipwhite(ml_get(--(curwin->w_cursor.lnum)));
/* ignore empty lines and lines starting with '#'. */
if (*ptr != '#' && *ptr != NUL)
break;
}
if (get_indent() >= i)
temp = FALSE;
curwin->w_cursor = old_pos;
}
if (temp)
shift_line(TRUE, FALSE, 1, TRUE);
}
}
/*
* set indent of '#' always to 0
*/
if (curwin->w_cursor.col > 0 && can_si && c == '#')
{
/* remember current indent for next line */
old_indent = get_indent();
(void)set_indent(0, SIN_CHANGED);
}
/* Adjust ai_col, the char at this position can be deleted. */
if (ai_col > curwin->w_cursor.col)
ai_col = curwin->w_cursor.col;
}
#endif
/*
* 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 (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
#if defined(FEAT_CINDENT) || defined(PROTO)
int
can_cindent_get(void)
{
return can_cindent;
}
#endif
/*
* 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.
if (tick != CHANGEDTICK(curbuf))
u_save(curwin->w_cursor.lnum, (linenr_T)(curwin->w_cursor.lnum + 1));
return r;
}