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- /* vi:set ts=8 sts=4 sw=4:
- *
- * VIM - Vi IMproved by Bram Moolenaar
- *
- * Do ":help uganda" in Vim to read copying and usage conditions.
- * Do ":help credits" in Vim to see a list of people who contributed.
- * See README.txt for an overview of the Vim source code.
- */
-
- /*
- * edit.c: functions for Insert mode
- */
-
- #include "vim.h"
-
- #ifdef FEAT_INS_EXPAND
- /*
- * definitions used for CTRL-X submode
- */
- #define CTRL_X_WANT_IDENT 0x100
-
- #define CTRL_X_NOT_DEFINED_YET 1
- #define CTRL_X_SCROLL 2
- #define CTRL_X_WHOLE_LINE 3
- #define CTRL_X_FILES 4
- #define CTRL_X_TAGS (5 + CTRL_X_WANT_IDENT)
- #define CTRL_X_PATH_PATTERNS (6 + CTRL_X_WANT_IDENT)
- #define CTRL_X_PATH_DEFINES (7 + CTRL_X_WANT_IDENT)
- #define CTRL_X_FINISHED 8
- #define CTRL_X_DICTIONARY (9 + CTRL_X_WANT_IDENT)
- #define CTRL_X_THESAURUS (10 + CTRL_X_WANT_IDENT)
- #define CTRL_X_CMDLINE 11
-
- #define CHECK_KEYS_TIME 30
-
- #define CTRL_X_MSG(i) ctrl_x_msgs[(i) & ~CTRL_X_WANT_IDENT]
-
- static char *ctrl_x_msgs[] =
- {
- N_(" Keyword completion (^N/^P)"), /* ctrl_x_mode == 0, ^P/^N compl. */
- N_(" ^X mode (^E/^Y/^L/^]/^F/^I/^K/^D/^V/^N/^P)"),
- /* Scroll has it's own msgs, in it's place there is the msg for local
- * ctrl_x_mode = 0 (eg continue_status & CONT_LOCAL) -- Acevedo */
- N_(" Keyword Local completion (^N/^P)"),
- N_(" Whole line completion (^L/^N/^P)"),
- N_(" File name completion (^F/^N/^P)"),
- N_(" Tag completion (^]/^N/^P)"),
- N_(" Path pattern completion (^N/^P)"),
- N_(" Definition completion (^D/^N/^P)"),
- NULL,
- N_(" Dictionary completion (^K/^N/^P)"),
- N_(" Thesaurus completion (^T/^N/^P)"),
- N_(" Command-line completion (^V/^N/^P)")
- };
-
- static char_u e_hitend[] = N_("Hit end of paragraph");
-
- /*
- * Structure used to store one match for insert completion.
- */
- struct Completion
- {
- struct Completion *next;
- struct Completion *prev;
- char_u *str; /* matched text */
- char_u *fname; /* file containing the match */
- int original; /* ORIGINAL_TEXT, CONT_S_IPOS or FREE_FNAME */
- int number; /* sequence number */
- };
-
- /* the original text when the expansion begun */
- #define ORIGINAL_TEXT (1)
- #define FREE_FNAME (2)
-
- /*
- * All the current matches are stored in a list.
- * "first_match" points to the start of the list.
- * "curr_match" points to the currently selected entry.
- * "shown_match" is different from curr_match during ins_compl_get_exp().
- */
- static struct Completion *first_match = NULL;
- static struct Completion *curr_match = NULL;
- static struct Completion *shown_match = NULL;
-
- static int started_completion = FALSE;
- static int completion_matches = 0;
- static char_u *complete_pat = NULL;
- static int complete_direction = FORWARD;
- static int shown_direction = FORWARD;
- static int completion_pending = FALSE;
- static pos_T initial_pos;
- static colnr_T complete_col = 0; /* column where the text starts
- that is being completed */
- static int save_sm;
- static char_u *original_text = NULL; /* text before completion */
- static int continue_mode = 0;
- static expand_T complete_xp;
-
- static int ins_compl_add __ARGS((char_u *str, int len, char_u *, int dir, int reuse));
- static void ins_compl_add_matches __ARGS((int num_matches, char_u **matches, int dir));
- static int ins_compl_make_cyclic __ARGS((void));
- static void ins_compl_dictionaries __ARGS((char_u *dict, char_u *pat, int dir, int flags, int thesaurus));
- static void ins_compl_free __ARGS((void));
- static void ins_compl_clear __ARGS((void));
- static void ins_compl_prep __ARGS((int c));
- static buf_T *ins_compl_next_buf __ARGS((buf_T *buf, int flag));
- static int ins_compl_get_exp __ARGS((pos_T *ini, int dir));
- static void ins_compl_delete __ARGS((void));
- static void ins_compl_insert __ARGS((void));
- static int ins_compl_next __ARGS((int allow_get_expansion));
- static int ins_complete __ARGS((int c));
- static int quote_meta __ARGS((char_u *dest, char_u *str, int len));
- #endif /* FEAT_INS_EXPAND */
-
- #define BACKSPACE_CHAR 1
- #define BACKSPACE_WORD 2
- #define BACKSPACE_WORD_NOT_SPACE 3
- #define BACKSPACE_LINE 4
-
- static void ins_redraw __ARGS((void));
- static void ins_ctrl_v __ARGS((void));
- static void undisplay_dollar __ARGS((void));
- static void insert_special __ARGS((int, int, int));
- static void redo_literal __ARGS((int c));
- static void start_arrow __ARGS((pos_T *end_insert_pos));
- static void stop_insert __ARGS((pos_T *end_insert_pos));
- static int echeck_abbr __ARGS((int));
- static void replace_push_off __ARGS((int c));
- static int replace_pop __ARGS((void));
- static void replace_join __ARGS((int off));
- static void replace_pop_ins __ARGS((void));
- #ifdef FEAT_MBYTE
- static void mb_replace_pop_ins __ARGS((int cc));
- #endif
- static void replace_flush __ARGS((void));
- static void replace_do_bs __ARGS((void));
- #ifdef FEAT_CINDENT
- static int cindent_on __ARGS((void));
- #endif
- static void ins_reg __ARGS((void));
- static void ins_ctrl_g __ARGS((void));
- static int ins_esc __ARGS((long *count, int cmdchar));
- #ifdef FEAT_RIGHTLEFT
- static void ins_ctrl_ __ARGS((void));
- #endif
- #ifdef FEAT_VISUAL
- static int ins_start_select __ARGS((int c));
- #endif
- static void ins_shift __ARGS((int c, int lastc));
- static void ins_del __ARGS((void));
- static int ins_bs __ARGS((int c, int mode, int *inserted_space_p));
- #ifdef FEAT_MOUSE
- static void ins_mouse __ARGS((int c));
- static void ins_mousescroll __ARGS((int up));
- #endif
- static void ins_left __ARGS((void));
- static void ins_home __ARGS((int c));
- static void ins_end __ARGS((int c));
- static void ins_s_left __ARGS((void));
- static void ins_right __ARGS((void));
- static void ins_s_right __ARGS((void));
- static void ins_up __ARGS((int startcol));
- static void ins_pageup __ARGS((void));
- static void ins_down __ARGS((int startcol));
- static void ins_pagedown __ARGS((void));
- static int ins_tab __ARGS((void));
- static int ins_eol __ARGS((int c));
- #ifdef FEAT_DIGRAPHS
- static int ins_digraph __ARGS((void));
- #endif
- static int ins_copychar __ARGS((linenr_T lnum));
- #ifdef FEAT_SMARTINDENT
- static void ins_try_si __ARGS((int c));
- #endif
- static colnr_T get_nolist_virtcol __ARGS((void));
-
- static colnr_T Insstart_textlen; /* length of line when insert started */
- static colnr_T Insstart_blank_vcol; /* vcol for first inserted blank */
-
- 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 */
-
- #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
- int revins_on; /* reverse insert mode on */
- int revins_chars; /* how much to skip after edit */
- int revins_legal; /* was the last char 'legal'? */
- int revins_scol; /* start column of revins session */
- #endif
-
- #if defined(FEAT_MBYTE) && defined(MACOS)
- static short previous_script = smRoman;
- #endif
-
- static int ins_need_undo; /* call u_save() before inserting a
- char. Set when edit() is called.
- after that arrow_used is used. */
-
- /*
- * edit(): Start inserting text.
- *
- * "cmdchar" can be:
- * 'i' normal insert command
- * 'a' normal append command
- * '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(cmdchar, startln, count)
- int cmdchar;
- int startln; /* if set, insert at start of line */
- long count;
- {
- int c = 0;
- char_u *ptr;
- int lastc;
- colnr_T mincol;
- static linenr_T o_lnum = 0;
- static int o_eol = FALSE;
- 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 did_restart_edit = restart_edit;
-
- /* sleep before redrawing, needed for "CTRL-O :" that results in an
- * error message */
- check_for_delay(TRUE);
-
- #ifdef HAVE_SANDBOX
- /* Don't allow inserting in the sandbox. */
- if (sandbox != 0)
- {
- EMSG(_(e_sandbox));
- return FALSE;
- }
- #endif
-
- #ifdef FEAT_INS_EXPAND
- ins_compl_clear(); /* clear stuff for CTRL-X mode */
- #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 = linetabsize(ml_get_curline());
- Insstart_blank_vcol = MAXCOL;
- if (!did_ai)
- ai_col = 0;
-
- if (cmdchar != NUL && restart_edit == 0)
- {
- ResetRedobuff();
- AppendNumberToRedobuff(count);
- #ifdef FEAT_VREPLACE
- if (cmdchar == 'V' || cmdchar == 'v')
- {
- /* "gR" or "gr" command */
- AppendCharToRedobuff('g');
- AppendCharToRedobuff((cmdchar == 'v') ? 'r' : 'R');
- }
- else
- #endif
- {
- 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')
- {
- #ifdef FEAT_FKMAP
- if (p_fkmap && p_ri)
- {
- beep_flush();
- EMSG(farsi_text_3); /* encoded in Farsi */
- State = INSERT;
- }
- else
- #endif
- State = REPLACE;
- }
- #ifdef FEAT_VREPLACE
- else if (cmdchar == 'V' || cmdchar == 'v')
- {
- State = VREPLACE;
- replaceState = VREPLACE;
- orig_line_count = curbuf->b_ml.ml_line_count;
- vr_lines_changed = 1;
- }
- #endif
- else
- State = INSERT;
-
- if (curbuf->b_p_iminsert == B_IMODE_LMAP)
- State |= LANGMAP;
- #ifdef USE_IM_CONTROL
- im_set_active(curbuf->b_p_iminsert == B_IMODE_IM);
- #endif
-
- #if defined(FEAT_MBYTE) && defined(MACOS)
- KeyScript(previous_script);
- #endif
-
- /*
- * Need to recompute the cursor position, it might move when the cursor is
- * on a TAB or special character.
- */
- curs_columns(TRUE);
-
- #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
-
- /*
- * Handle restarting Insert mode.
- * Don't do this for "CTRL-O ." (repeat an insert): we get here with
- * restart_edit non-zero, and 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 (((o_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;
- #ifdef FEAT_MBYTE
- else if (has_mbyte)
- {
- i = (*mb_ptr2len_check)(ptr);
- if (ptr[i] == NUL)
- curwin->w_cursor.col += i;
- }
- #endif
- }
- }
- else
- {
- arrow_used = FALSE;
- o_eol = 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)
- i = showmode();
-
- if (!p_im && did_restart_edit == 0)
- change_warning(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;
-
- /* set curwin->w_curswant for next K_DOWN or K_UP */
- if (!arrow_used)
- curwin->w_set_curswant = TRUE;
-
- /*
- * When emsg() was called msg_scroll will have been set.
- */
- msg_scroll = FALSE;
-
- #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
-
- /*
- * 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 ((int)curwin->w_wcol < (int)mincol - curbuf->b_p_ts
- && curwin->w_wrow == W_WINROW(curwin)
- + curwin->w_height - 1 - p_so
- && (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();
-
- #ifdef FEAT_SCROLLBIND
- if (curwin->w_p_scb)
- do_check_scrollbind(TRUE);
- #endif
-
- 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.
- */
- lastc = c; /* remember previous char for CTRL-D */
- c = safe_vgetc();
-
- #ifdef FEAT_RIGHTLEFT
- if (p_hkmap && KeyTyped)
- c = hkmap(c); /* Hebrew mode mapping */
- #endif
- #ifdef FEAT_FKMAP
- if (p_fkmap && KeyTyped)
- c = fkmap(c); /* Farsi mode mapping */
- #endif
-
- #ifdef FEAT_INS_EXPAND
- /* Prepare for or stop CTRL-X mode. This doesn't do completion, but
- * it does fix up the text when finishing completion. */
- ins_compl_prep(c);
- #endif
-
- /* CTRL-\ CTRL-N goes to Normal mode */
- if (c == Ctrl_BSL)
- {
- /* may need to redraw when no more chars available now */
- ins_redraw();
- ++no_mapping;
- ++allow_keys;
- c = safe_vgetc();
- --no_mapping;
- --allow_keys;
- if (c != Ctrl_N) /* it's something else */
- {
- vungetc(c);
- c = Ctrl_BSL;
- }
- else
- {
- count = 0;
- goto doESCkey;
- }
- }
-
- #ifdef FEAT_DIGRAPHS
- c = do_digraph(c);
- #endif
-
- #ifdef FEAT_INS_EXPAND
- if (c == Ctrl_V && ctrl_x_mode == CTRL_X_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 == 0
- # 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
-
- #ifdef FEAT_VISUAL
- /*
- * 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;
- #endif
-
- /*
- * The big switch to handle a character in insert mode.
- */
- switch (c)
- {
- /* toggle insert/replace mode */
- case K_INS:
- case K_KINS:
- #ifdef FEAT_FKMAP
- if (p_fkmap && p_ri)
- {
- beep_flush();
- EMSG(farsi_text_3); /* encoded in Farsi */
- break;
- }
- #endif
- 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
- break;
-
- #ifdef FEAT_INS_EXPAND
- /* Enter CTRL-X mode */
- case Ctrl_X:
- /* CTRL-X after CTRL-V CTRL-X doesn't do anything, so that CTRL-X
- * CTRL-V works like CTRL-N */
- if (ctrl_x_mode != CTRL_X_CMDLINE)
- {
- /* if the next ^X<> won't ADD nothing, then reset
- * continue_status */
- if (continue_status & CONT_N_ADDS)
- continue_status = (continue_status | CONT_INTRPT);
- else
- continue_status = 0;
- /* We're not sure which CTRL-X mode it will be yet */
- ctrl_x_mode = CTRL_X_NOT_DEFINED_YET;
- edit_submode = (char_u *)_(CTRL_X_MSG(ctrl_x_mode));
- edit_submode_pre = NULL;
- showmode();
- }
- break;
- #endif
-
- /* end of Select mode mapping - ignore */
- case K_SELECT:
- break;
-
- /* suspend when 'insertmode' set */
- case Ctrl_Z:
- if (!p_im)
- goto normalchar; /* insert CTRL-Z as normal char */
- stuffReadbuff((char_u *)":st\r");
- c = Ctrl_O;
- /*FALLTHROUGH*/
-
- /* execute one command */
- case Ctrl_O:
- if (echeck_abbr(Ctrl_O + ABBR_OFF))
- break;
- count = 0;
- #ifdef FEAT_VREPLACE
- if (State & VREPLACE_FLAG)
- restart_edit = 'V';
- else
- #endif
- if (State & REPLACE_FLAG)
- restart_edit = 'R';
- else
- restart_edit = 'I';
- o_lnum = curwin->w_cursor.lnum;
- o_eol = (gchar_cursor() == NUL);
- goto doESCkey;
-
- #ifdef FEAT_SNIFF
- case K_SNIFF:
- stuffcharReadbuff(K_SNIFF);
- goto doESCkey;
- #endif
-
- /* Hitting the help key in insert mode is like <ESC> <Help> */
- case K_HELP:
- case K_F1:
- case K_XF1:
- stuffcharReadbuff(K_HELP);
- if (p_im)
- need_start_insertmode = TRUE;
- goto doESCkey;
-
- /* an escape ends input mode */
- case ESC:
- if (echeck_abbr(ESC + ABBR_OFF))
- break;
- /*FALLTHROUGH*/
-
- case Ctrl_C:
- #ifdef FEAT_CMDWIN
- if (c == Ctrl_C && cmdwin_type != 0)
- {
- /* Close the cmdline window. */
- cmdwin_result = K_IGNORE;
- goto doESCkey;
- }
- #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();
- break;
- }
- doESCkey:
- /*
- * This is the ONLY return from edit()!
- */
- if (ins_esc(&count, cmdchar))
- return (c == Ctrl_O);
- continue;
-
- /*
- * Insert the previously inserted text.
- * For ^@ the trailing ESC will end the insert, unless there is an
- * error.
- */
- case K_ZERO:
- case NUL:
- case Ctrl_A:
- if (stuff_inserted(NUL, 1L, (c == Ctrl_A)) == FAIL
- && c != Ctrl_A && !p_im)
- goto doESCkey; /* quit insert mode */
- inserted_space = FALSE;
- break;
-
- /* insert the contents of a register */
- case Ctrl_R:
- ins_reg();
- inserted_space = FALSE;
- break;
-
- case Ctrl_G:
- ins_ctrl_g();
- break;
-
- case Ctrl_HAT:
- if (map_to_exists_mode((char_u *)"", LANGMAP))
- {
- /* ":lmap" mappings exists, Toggle use of ":lmap" mappings. */
- if (curbuf->b_p_iminsert == B_IMODE_LMAP)
- {
- curbuf->b_p_iminsert = B_IMODE_NONE;
- State &= ~LANGMAP;
- }
- else
- {
- curbuf->b_p_iminsert = B_IMODE_LMAP;
- State |= LANGMAP;
- #ifdef USE_IM_CONTROL
- im_set_active(FALSE);
- #endif
- }
- }
- #ifdef USE_IM_CONTROL
- else
- {
- /* There are no ":lmap" mappings, toggle IM */
- if (curbuf->b_p_iminsert == B_IMODE_IM)
- {
- 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();
- #if defined(FEAT_WINDOWS) && defined(FEAT_KEYMAP)
- /* Show/unshow value of 'keymap' in status lines. */
- status_redraw_curbuf();
- #endif
- break;
-
- #ifdef FEAT_RIGHTLEFT
- case Ctrl__:
- if (!p_ari)
- goto normalchar;
- ins_ctrl_();
- break;
- #endif
-
- /* Make indent one shiftwidth smaller. */
- case Ctrl_D:
- #if defined(FEAT_INS_EXPAND) && defined(FEAT_FIND_ID)
- if (ctrl_x_mode == CTRL_X_PATH_DEFINES)
- goto docomplete;
- #endif
- /* FALLTHROUGH */
-
- /* Make indent one shiftwidth greater. */
- case Ctrl_T:
- # ifdef FEAT_INS_EXPAND
- if (c == Ctrl_T && ctrl_x_mode == CTRL_X_THESAURUS)
- {
- if (*curbuf->b_p_tsr == NUL && *p_tsr == NUL)
- {
- ctrl_x_mode = 0;
- msg_attr((char_u *)_("'thesaurus' option is empty"),
- hl_attr(HLF_E));
- if (emsg_silent == 0)
- {
- vim_beep();
- setcursor();
- out_flush();
- ui_delay(2000L, FALSE);
- }
- break;
- }
- goto docomplete;
- }
- # endif
- ins_shift(c, lastc);
- inserted_space = FALSE;
- break;
-
- /* delete character under the cursor */
- case K_DEL:
- case K_KDEL:
- ins_del();
- break;
-
- /* delete character before the cursor */
- case K_BS:
- case Ctrl_H:
- did_backspace = ins_bs(c, BACKSPACE_CHAR, &inserted_space);
- break;
-
- /* delete word before the cursor */
- case Ctrl_W:
- did_backspace = ins_bs(c, BACKSPACE_WORD, &inserted_space);
- break;
-
- /* delete all inserted text in current line */
- case Ctrl_U:
- did_backspace = ins_bs(c, BACKSPACE_LINE, &inserted_space);
- inserted_space = FALSE;
- break;
-
- #ifdef FEAT_MOUSE
- case K_LEFTMOUSE:
- case K_LEFTMOUSE_NM:
- case K_LEFTDRAG:
- case K_LEFTRELEASE:
- case K_LEFTRELEASE_NM:
- case K_MIDDLEMOUSE:
- case K_MIDDLEDRAG:
- case K_MIDDLERELEASE:
- case K_RIGHTMOUSE:
- case K_RIGHTDRAG:
- case K_RIGHTRELEASE:
- ins_mouse(c);
- break;
-
- /* Default action for scroll wheel up: scroll up */
- case K_MOUSEDOWN:
- ins_mousescroll(FALSE);
- break;
-
- /* Default action for scroll wheel down: scroll down */
- case K_MOUSEUP:
- ins_mousescroll(TRUE);
- break;
- #endif
-
- case K_IGNORE:
- break;
-
- #ifdef FEAT_GUI
- case K_VER_SCROLLBAR:
- ins_scroll();
- break;
-
- case K_HOR_SCROLLBAR:
- ins_horscroll();
- break;
- #endif
-
- case K_HOME:
- case K_KHOME:
- case K_XHOME:
- case K_S_HOME:
- case K_C_HOME:
- ins_home(c);
- break;
-
- case K_END:
- case K_KEND:
- case K_XEND:
- case K_S_END:
- case K_C_END:
- ins_end(c);
- break;
-
- case K_LEFT:
- ins_left();
- break;
-
- case K_S_LEFT:
- case K_C_LEFT:
- ins_s_left();
- break;
-
- case K_RIGHT:
- ins_right();
- break;
-
- case K_S_RIGHT:
- case K_C_RIGHT:
- ins_s_right();
- break;
-
- case K_UP:
- ins_up(FALSE);
- break;
-
- case K_S_UP:
- case K_PAGEUP:
- case K_KPAGEUP:
- ins_pageup();
- break;
-
- case K_DOWN:
- ins_down(FALSE);
- break;
-
- case K_S_DOWN:
- case K_PAGEDOWN:
- case K_KPAGEDOWN:
- ins_pagedown();
- break;
-
- /* When <S-Tab> isn't mapped, use it like a normal TAB */
- case K_S_TAB:
- c = TAB;
- /* FALLTHROUGH */
-
- /* TAB or Complete patterns along path */
- case TAB:
- #if defined(FEAT_INS_EXPAND) && defined(FEAT_FIND_ID)
- if (ctrl_x_mode == CTRL_X_PATH_PATTERNS)
- goto docomplete;
- #endif
- inserted_space = FALSE;
- if (ins_tab())
- goto normalchar; /* insert TAB as a normal char */
- break;
-
- case K_KENTER:
- c = CR;
- /* FALLTHROUGH */
- case CR:
- case NL:
- #ifdef FEAT_CMDWIN
- if (cmdwin_type != 0)
- {
- /* Execute the command in the cmdline window. */
- cmdwin_result = CR;
- goto doESCkey;
- }
- #endif
- if (ins_eol(c) && !p_im)
- goto doESCkey; /* out of memory */
- inserted_space = FALSE;
- break;
-
- #if defined(FEAT_DIGRAPHS) || defined (FEAT_INS_EXPAND)
- case Ctrl_K:
- # ifdef FEAT_INS_EXPAND
- if (ctrl_x_mode == CTRL_X_DICTIONARY)
- {
- if (*curbuf->b_p_dict == NUL && *p_dict == NUL)
- {
- ctrl_x_mode = 0;
- msg_attr((char_u *)_("'dictionary' option is empty"),
- hl_attr(HLF_E));
- if (emsg_silent == 0)
- {
- vim_beep();
- setcursor();
- out_flush();
- ui_delay(2000L, FALSE);
- }
- break;
- }
- goto docomplete;
- }
- # endif
- # ifdef FEAT_DIGRAPHS
- c = ins_digraph();
- if (c == NUL)
- break;
- # endif
- goto normalchar;
- #endif /* FEAT_DIGRAPHS || FEAT_INS_EXPAND */
-
- #ifdef FEAT_INS_EXPAND
- case Ctrl_RSB: /* Tag name completion after ^X */
- if (ctrl_x_mode != CTRL_X_TAGS)
- goto normalchar;
- goto docomplete;
-
- case Ctrl_F: /* File name completion after ^X */
- if (ctrl_x_mode != CTRL_X_FILES)
- goto normalchar;
- goto docomplete;
- #endif
-
- case Ctrl_L: /* Whole line completion after ^X */
- #ifdef FEAT_INS_EXPAND
- if (ctrl_x_mode != CTRL_X_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 */
-
- /* Do previous/next pattern completion */
- case Ctrl_P:
- 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 != 0
- && !(continue_status & CONT_LOCAL))
- goto normalchar;
-
- docomplete:
- if (ins_complete(c) == FAIL)
- continue_status = 0;
- 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 */
- #ifdef FEAT_INS_EXPAND
- if (ctrl_x_mode == CTRL_X_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 */
- }
- }
- break;
-
- default:
- #ifdef UNIX
- if (c == intr_char) /* special interrupt char */
- goto do_intr;
- #endif
-
- /*
- * Insert a nomal character.
- */
- normalchar:
- #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();
- }
-
- if (vim_iswordc(c) || !echeck_abbr(c))
- {
- insert_special(c, FALSE, FALSE);
- #ifdef FEAT_RIGHTLEFT
- revins_legal++;
- revins_chars++;
- #endif
- }
- #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 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 == 0
- # 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 */
- }
-
- /*
- * 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).
- */
- static void
- ins_redraw()
- {
- if (!char_avail())
- {
- 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()
- {
- int c;
-
- /* may need to redraw when no more chars available now */
- ins_redraw();
-
- if (redrawing() && !char_avail())
- edit_putchar('^', TRUE);
- AppendToRedobuff((char_u *)CTRL_V_STR); /* CTRL-V */
-
- #ifdef FEAT_CMDL_INFO
- add_to_showcmd_c(Ctrl_V);
- #endif
-
- c = get_literal();
- #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_char;
- static int pc_attr;
- static int pc_row;
- static int pc_col;
-
- void
- edit_putchar(c, highlight)
- 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 = W_WINCOL(curwin) + (
- #ifdef FEAT_RIGHTLEFT
- curwin->w_p_rl ? (int)W_WIDTH(curwin) - 1 - curwin->w_wcol :
- #endif
- curwin->w_wcol);
- /* save the character to be able to put it back */
- pc_char = screen_getchar(pc_row, pc_col, &pc_attr);
- screen_putchar(c, pc_row, pc_col, attr);
- }
- }
-
- /*
- * Undo the previous edit_putchar().
- */
- void
- edit_unputchar()
- {
- if (pc_row >= msg_scrolled)
- screen_putchar(pc_char, pc_row - msg_scrolled, pc_col, pc_attr);
- }
-
- /*
- * Called when p_dollar is set: display a '$' at the end of the changed text
- * Only works when cursor is in the line that changes.
- */
- void
- display_dollar(col)
- colnr_T col;
- {
- colnr_T save_col;
-
- if (!redrawing())
- return;
-
- cursor_off();
- save_col = curwin->w_cursor.col;
- curwin->w_cursor.col = col;
- #ifdef FEAT_MBYTE
- if (has_mbyte)
- {
- char_u *p;
-
- /* If on the last byte of a multi-byte move to the first byte. */
- p = ml_get_curline();
- curwin->w_cursor.col -= (*mb_head_off)(p, p + col);
- }
- #endif
- curs_columns(FALSE); /* recompute w_wrow and w_wcol */
- if (curwin->w_wcol < W_WIDTH(curwin))
- {
- edit_putchar('$', 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()
- {
- if (dollar_vcol)
- {
- dollar_vcol = 0;
- redrawWinline(curwin->w_cursor.lnum, FALSE);
- }
- }
-
- /*
- * 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(type, amount, round, replaced)
- int type;
- int amount;
- int round;
- int replaced; /* replaced character, put on replace stack */
- {
- 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;
- #ifdef FEAT_VREPLACE
- 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;
- }
- #endif
-
- /* 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, SIN_CHANGED);
- else
- shift_line(type == INDENT_DEC, round, 1);
- 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 = (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;
- #ifdef FEAT_MBYTE
- if (has_mbyte)
- new_cursor_col += (*mb_ptr2len_check)(ptr + new_cursor_col);
- else
- #endif
- ++new_cursor_col;
- vcol += lbr_chartabsize(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 = 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 = 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;
- }
- }
-
- #ifdef FEAT_VREPLACE
- /*
- * 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);
- }
- #endif
- }
-
- /*
- * 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(line)
- 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;
- }
-
- #if defined(FEAT_VREPLACE) || defined(FEAT_INS_EXPAND) \
- || defined(FEAT_COMMENTS) || defined(PROTO)
- /*
- * Backspace the cursor until the given column. Handles REPLACE and VREPLACE
- * modes correctly. May also be used when not in insert mode at all.
- */
- void
- backspace_until_column(col)
- int col;
- {
- while ((int)curwin->w_cursor.col > col)
- {
- curwin->w_cursor.col--;
- if (State & REPLACE_FLAG)
- replace_do_bs();
- else
- (void)del_char(FALSE);
- }
- }
- #endif
-
- #if defined(FEAT_INS_EXPAND) || defined(PROTO)
- /*
- * Is the character 'c' a valid key to go to or keep us in CTRL-X mode?
- * This depends on the current mode.
- */
- int
- vim_is_ctrl_x_key(c)
- int c;
- {
- /* Always allow ^R - let it's results then be checked */
- if (c == Ctrl_R)
- return TRUE;
-
- switch (ctrl_x_mode)
- {
- case 0: /* Not in any CTRL-X mode */
- return (c == Ctrl_N || c == Ctrl_P || c == Ctrl_X);
- case CTRL_X_NOT_DEFINED_YET:
- return ( c == Ctrl_X || c == Ctrl_Y || c == Ctrl_E
- || c == Ctrl_L || c == Ctrl_F || c == Ctrl_RSB
- || c == Ctrl_I || c == Ctrl_D || c == Ctrl_P
- || c == Ctrl_N || c == Ctrl_T || c == Ctrl_V);
- case CTRL_X_SCROLL:
- return (c == Ctrl_Y || c == Ctrl_E);
- case CTRL_X_WHOLE_LINE:
- return (c == Ctrl_L || c == Ctrl_P || c == Ctrl_N);
- case CTRL_X_FILES:
- return (c == Ctrl_F || c == Ctrl_P || c == Ctrl_N);
- case CTRL_X_DICTIONARY:
- return (c == Ctrl_K || c == Ctrl_P || c == Ctrl_N);
- case CTRL_X_THESAURUS:
- return (c == Ctrl_T || c == Ctrl_P || c == Ctrl_N);
- case CTRL_X_TAGS:
- return (c == Ctrl_RSB || c == Ctrl_P || c == Ctrl_N);
- #ifdef FEAT_FIND_ID
- case CTRL_X_PATH_PATTERNS:
- return (c == Ctrl_P || c == Ctrl_N);
- case CTRL_X_PATH_DEFINES:
- return (c == Ctrl_D || c == Ctrl_P || c == Ctrl_N);
- #endif
- case CTRL_X_CMDLINE:
- return (c == Ctrl_V || c == Ctrl_P || c == Ctrl_N || c == Ctrl_X);
- }
- EMSG(_(e_internal));
- return FALSE;
- }
-
- /*
- * This is like ins_compl_add(), but if ic and inf are set, then the
- * case of the originally typed text is used, and the case of the completed
- * text is infered, ie this tries to work out what case you probably wanted
- * the rest of the word to be in -- webb
- */
- int
- ins_compl_add_infercase(str, len, fname, dir, reuse)
- char_u *str;
- int len;
- char_u *fname;
- int dir;
- int reuse;
- {
- int has_lower = FALSE;
- int was_letter = FALSE;
- int idx;
-
- if (p_ic && curbuf->b_p_inf && len < IOSIZE)
- {
- /* Infer case of completed part -- webb */
- /* Use IObuff, str would change text in buffer! */
- STRNCPY(IObuff, str, len);
- IObuff[len] = NUL;
-
- /* Rule 1: Were any chars converted to lower? */
- for (idx = 0; idx < completion_length; ++idx)
- {
- if (islower(original_text[idx]))
- {
- has_lower = TRUE;
- if (isupper(IObuff[idx]))
- {
- /* Rule 1 is satisfied */
- for (idx = completion_length; idx < len; ++idx)
- IObuff[idx] = TO_LOWER(IObuff[idx]);
- break;
- }
- }
- }
-
- /*
- * Rule 2: No lower case, 2nd consecutive letter converted to
- * upper case.
- */
- if (!has_lower)
- {
- for (idx = 0; idx < completion_length; ++idx)
- {
- if (was_letter && isupper(original_text[idx])
- && islower(IObuff[idx]))
- {
- /* Rule 2 is satisfied */
- for (idx = completion_length; idx < len; ++idx)
- IObuff[idx] = TO_UPPER(IObuff[idx]);
- break;
- }
- was_letter = isalpha(original_text[idx]);
- }
- }
-
- /* Copy the original case of the part we typed */
- STRNCPY(IObuff, original_text, completion_length);
-
- return ins_compl_add(IObuff, len, fname, dir, reuse);
- }
- return ins_compl_add(str, len, fname, dir, reuse);
- }
-
- /*
- * Add a match to the list of matches.
- * If the given string is already in the list of completions, then return
- * FAIL, otherwise add it to the list and return OK. If there is an error,
- * maybe because alloc returns NULL, then RET_ERROR is returned -- webb.
- */
- static int
- ins_compl_add(str, len, fname, dir, reuse)
- char_u *str;
- int len;
- char_u *fname;
- int dir;
- int reuse;
- {
- struct Completion *match;
-
- ui_breakcheck();
- if (got_int)
- return RET_ERROR;
- if (len < 0)
- len = (int)STRLEN(str);
-
- /*
- * If the same match is already present, don't add it.
- */
- if (first_match != NULL)
- {
- match = first_match;
- do
- {
- if ( !(match->original & ORIGINAL_TEXT)
- && STRNCMP(match->str, str, (size_t)len) == 0
- && match->str[len] == NUL)
- return FAIL;
- match = match->next;
- } while (match != NULL && match != first_match);
- }
-
- /*
- * Allocate a new match structure.
- * Copy the values to the new match structure.
- */
- match = (struct Completion *)alloc((unsigned)sizeof(struct Completion));
- if (match == NULL)
- return RET_ERROR;
- match->number = -1;
- if (reuse & ORIGINAL_TEXT)
- {
- match->number = 0;
- match->str = original_text;
- }
- else if ((match->str = vim_strnsave(str, len)) == NULL)
- {
- vim_free(match);
- return RET_ERROR;
- }
- /* match-fname is:
- * - curr_match->fname if it is a string equal to fname.
- * - a copy of fname, FREE_FNAME is set to free later THE allocated mem.
- * - NULL otherwise. --Acevedo */
- if (fname && curr_match && curr_match->fname
- && STRCMP(fname, curr_match->fname) == 0)
- match->fname = curr_match->fname;
- else if (fname && (match->fname = vim_strsave(fname)) != NULL)
- reuse |= FREE_FNAME;
- else
- match->fname = NULL;
- match->original = reuse;
-
- /*
- * Link the new match structure in the list of matches.
- */
- if (first_match == NULL)
- match->next = match->prev = NULL;
- else if (dir == FORWARD)
- {
- match->next = curr_match->next;
- match->prev = curr_match;
- }
- else /* BACKWARD */
- {
- match->next = curr_match;
- match->prev = curr_match->prev;
- }
- if (match->next)
- match->next->prev = match;
- if (match->prev)
- match->prev->next = match;
- else /* if there's nothing before, it is the first match */
- first_match = match;
- curr_match = match;
-
- return OK;
- }
-
- /*
- * Add an array of matches to the list of matches.
- * Frees matches[].
- */
- static void
- ins_compl_add_matches(num_matches, matches, dir)
- int num_matches;
- char_u **matches;
- int dir;
- {
- int i;
- int add_r = OK;
- int ldir = dir;
-
- for (i = 0; i < num_matches && add_r != RET_ERROR; i++)
- if ((add_r = ins_compl_add(matches[i], -1, NULL, ldir, 0)) == OK)
- /* if dir was BACKWARD then honor it just once */
- ldir = FORWARD;
- FreeWild(num_matches, matches);
- }
-
- /* Make the completion list cyclic.
- * Return the number of matches (excluding the original).
- */
- static int
- ins_compl_make_cyclic()
- {
- struct Completion *match;
- int count = 0;
-
- if (first_match != NULL)
- {
- /*
- * Find the end of the list.
- */
- match = first_match;
- /* there's always an entry for the original_text, it doesn't count. */
- while (match->next != NULL && match->next != first_match)
- {
- match = match->next;
- ++count;
- }
- match->next = first_match;
- first_match->prev = match;
- }
- return count;
- }
-
- #define DICT_FIRST (1) /* use just first element in "dict" */
- #define DICT_EXACT (2) /* "dict" is the exact name of a file */
- /*
- * Add any identifiers that match the given pattern to the list of
- * completions.
- */
- static void
- ins_compl_dictionaries(dict, pat, dir, flags, thesaurus)
- char_u *dict;
- char_u *pat;
- int dir;
- int flags;
- int thesaurus;
- {
- char_u *ptr;
- char_u *buf;
- FILE *fp;
- regmatch_T regmatch;
- int add_r;
- char_u **files;
- int count;
- int i;
- int save_p_scs;
-
- buf = alloc(LSIZE);
- /* If 'infercase' is set, don't use 'smartcase' here */
- save_p_scs = p_scs;
- if (curbuf->b_p_inf)
- p_scs = FALSE;
- regmatch.regprog = vim_regcomp(pat, (int)p_magic);
- /* ignore case depends on 'ignorecase', 'smartcase' and "pat" */
- regmatch.rm_ic = ignorecase(pat);
- while (buf != NULL && regmatch.regprog != NULL && *dict != NUL
- && !got_int && !completion_interrupted)
- {
- /* copy one dictionary file name into buf */
- if (flags == DICT_EXACT)
- {
- count = 1;
- files = &dict;
- }
- else
- {
- /* Expand wildcards in the dictionary name, but do not allow
- * backticks (for security, the 'dict' option may have been set in
- * a modeline). */
- copy_option_part(&dict, buf, LSIZE, ",");
- if (vim_strchr(buf, '`') != NULL
- || expand_wildcards(1, &buf, &count, &files,
- EW_FILE|EW_SILENT) != OK)
- count = 0;
- }
-
- for (i = 0; i < count && !got_int && !completion_interrupted; i++)
- {
- fp = mch_fopen((char *)files[i], "r"); /* open dictionary file */
- if (flags != DICT_EXACT)
- {
- sprintf((char*)IObuff, _("Scanning dictionary: %s"),
- (char *)files[i]);
- msg_trunc_attr(IObuff, TRUE, hl_attr(HLF_R));
- }
-
- if (fp != NULL)
- {
- /*
- * Read dictionary file line by line.
- * Check each line for a match.
- */
- while (!got_int && !completion_interrupted
- && !vim_fgets(buf, LSIZE, fp))
- {
- ptr = buf;
- while (vim_regexec(®match, buf, (colnr_T)(ptr - buf)))
- {
- ptr = regmatch.startp[0];
- ptr = find_word_end(ptr);
- add_r = ins_compl_add_infercase(regmatch.startp[0],
- (int)(ptr - regmatch.startp[0]),
- files[i], dir, 0);
- if (thesaurus)
- {
- char_u *wstart;
-
- /*
- * Add the other matches on the line
- */
- while (!got_int)
- {
- /* Find start of the next word. Skip white
- * space and punctuation. */
- ptr = find_word_start(ptr);
- if (*ptr == NUL || *ptr == NL)
- break;
- wstart = ptr;
-
- /* Find end of the word and add it. */
- ptr = find_word_end(ptr);
- add_r = ins_compl_add_infercase(wstart,
- (int)(ptr - wstart), files[i], dir, 0);
- }
- }
- if (add_r == OK)
- /* if dir was BACKWARD then honor it just once */
- dir = FORWARD;
- else if (add_r == RET_ERROR)
- break;
- /* avoid expensive call to vim_regexec() when at end
- * of line */
- if (*ptr == '\n' || got_int)
- break;
- }
- line_breakcheck();
- ins_compl_check_keys();
- }
- fclose(fp);
- }
- }
- if (flags != DICT_EXACT)
- FreeWild(count, files);
- if (flags)
- break;
- }
- p_scs = save_p_scs;
- vim_free(regmatch.regprog);
- vim_free(buf);
- }
-
- /*
- * Find the start of the next word.
- * Returns a pointer to the first char of the word. Also stops at a NUL.
- */
- char_u *
- find_word_start(ptr)
- char_u *ptr;
- {
- #ifdef FEAT_MBYTE
- if (has_mbyte)
- while (*ptr != NUL && *ptr != '\n' && mb_get_class(ptr) <= 1)
- ptr += (*mb_ptr2len_check)(ptr);
- else
- #endif
- while (*ptr != NUL && *ptr != '\n' && !vim_iswordc(*ptr))
- ++ptr;
- return ptr;
- }
-
- /*
- * Find the end of the word. Assumes it starts inside a word.
- * Returns a pointer to just after the word.
- */
- char_u *
- find_word_end(ptr)
- char_u *ptr;
- {
- #ifdef FEAT_MBYTE
- int start_class;
-
- if (has_mbyte)
- {
- start_class = mb_get_class(ptr);
- if (start_class > 1)
- while (*ptr != NUL)
- {
- ptr += (*mb_ptr2len_check)(ptr);
- if (mb_get_class(ptr) != start_class)
- break;
- }
- }
- else
- #endif
- while (vim_iswordc(*ptr))
- ++ptr;
- return ptr;
- }
-
- /*
- * Free the list of completions
- */
- static void
- ins_compl_free()
- {
- struct Completion *match;
-
- vim_free(complete_pat);
- complete_pat = NULL;
-
- if (first_match == NULL)
- return;
- curr_match = first_match;
- do
- {
- match = curr_match;
- curr_match = curr_match->next;
- vim_free(match->str);
- /* several entries may use the same fname, free it just once. */
- if (match->original & FREE_FNAME)
- vim_free(match->fname);
- vim_free(match);
- } while (curr_match != NULL && curr_match != first_match);
- first_match = curr_match = NULL;
- }
-
- static void
- ins_compl_clear()
- {
- continue_status = 0;
- started_completion = FALSE;
- completion_matches = 0;
- vim_free(complete_pat);
- complete_pat = NULL;
- save_sm = -1;
- edit_submode_extra = NULL;
- }
-
- /*
- * Prepare for Insert mode completion, or stop it.
- */
- static void
- ins_compl_prep(c)
- int c;
- {
- char_u *ptr;
- char_u *tmp_ptr;
- int temp;
- int want_cindent;
-
- /* Forget any previous 'special' messages if this is actually
- * a ^X mode key - bar ^R, in which case we wait to see what it gives us.
- */
- if (c != Ctrl_R && vim_is_ctrl_x_key(c))
- edit_submode_extra = NULL;
-
- /* Ignore end of Select mode mapping */
- if (c == K_SELECT)
- return;
-
- if (ctrl_x_mode == CTRL_X_NOT_DEFINED_YET)
- {
- /*
- * We have just typed CTRL-X and aren't quite sure which CTRL-X mode
- * it will be yet. Now we decide.
- */
- switch (c)
- {
- case Ctrl_E:
- case Ctrl_Y:
- ctrl_x_mode = CTRL_X_SCROLL;
- if (!(State & REPLACE_FLAG))
- edit_submode = (char_u *)_(" (insert) Scroll (^E/^Y)");
- else
- edit_submode = (char_u *)_(" (replace) Scroll (^E/^Y)");
- edit_submode_pre = NULL;
- showmode();
- break;
- case Ctrl_L:
- ctrl_x_mode = CTRL_X_WHOLE_LINE;
- break;
- case Ctrl_F:
- ctrl_x_mode = CTRL_X_FILES;
- break;
- case Ctrl_K:
- ctrl_x_mode = CTRL_X_DICTIONARY;
- break;
- case Ctrl_R:
- /* Simply allow ^R to happen without affecting ^X mode */
- break;
- case Ctrl_T:
- ctrl_x_mode = CTRL_X_THESAURUS;
- break;
- case Ctrl_RSB:
- ctrl_x_mode = CTRL_X_TAGS;
- break;
- #ifdef FEAT_FIND_ID
- case Ctrl_I:
- case K_S_TAB:
- ctrl_x_mode = CTRL_X_PATH_PATTERNS;
- break;
- case Ctrl_D:
- ctrl_x_mode = CTRL_X_PATH_DEFINES;
- break;
- #endif
- case Ctrl_V:
- ctrl_x_mode = CTRL_X_CMDLINE;
- break;
- case Ctrl_P:
- case Ctrl_N:
- /* ^X^P means LOCAL expansion if nothing interrupted (eg we
- * just started ^X mode, or there were enough ^X's to cancel
- * the previous mode, say ^X^F^X^X^P or ^P^X^X^X^P, see below)
- * do normal expansion when interrupting a different mode (say
- * ^X^F^X^P or ^P^X^X^P, see below)
- * nothing changes if interrupting mode 0, (eg, the flag
- * doesn't change when going to ADDING mode -- Acevedo */
- if (!(continue_status & CONT_INTRPT))
- continue_status |= CONT_LOCAL;
- else if (continue_mode != 0)
- continue_status &= ~CONT_LOCAL;
- /* FALLTHROUGH */
- default:
- /* if we have typed at least 2 ^X's... for modes != 0, we set
- * continue_status = 0 (eg, as if we had just started ^X mode)
- * for mode 0, we set continue_mode to an impossible value, in
- * both cases ^X^X can be used to restart the same mode
- * (avoiding ADDING mode). Undocumented feature:
- * In a mode != 0 ^X^P and ^X^X^P start 'complete' and local
- * ^P expansions respectively. In mode 0 an extra ^X is
- * needed since ^X^P goes to ADDING mode -- Acevedo */
- if (c == Ctrl_X)
- {
- if (continue_mode != 0)
- continue_status = 0;
- else
- continue_mode = CTRL_X_NOT_DEFINED_YET;
- }
- ctrl_x_mode = 0;
- edit_submode = NULL;
- showmode();
- break;
- }
- }
- else if (ctrl_x_mode != 0)
- {
- /* We're already in CTRL-X mode, do we stay in it? */
- if (!vim_is_ctrl_x_key(c))
- {
- if (ctrl_x_mode == CTRL_X_SCROLL)
- ctrl_x_mode = 0;
- else
- ctrl_x_mode = CTRL_X_FINISHED;
- edit_submode = NULL;
- }
- showmode();
- }
-
- if (started_completion || ctrl_x_mode == CTRL_X_FINISHED)
- {
- /* Show error message from attempted keyword completion (probably
- * 'Pattern not found') until another key is hit, then go back to
- * showing what mode we are in.
- */
- showmode();
- if ((ctrl_x_mode == 0 && c != Ctrl_N && c != Ctrl_P && c != Ctrl_R)
- || ctrl_x_mode == CTRL_X_FINISHED)
- {
- /* Get here when we have finished typing a sequence of ^N and
- * ^P or other completion characters in CTRL-X mode. Free up
- * memory that was used, and make sure we can redo the insert.
- */
- if (curr_match != NULL)
- {
- /*
- * If any of the original typed text has been changed,
- * eg when ignorecase is set, we must add back-spaces to
- * the redo buffer. We add as few as necessary to delete
- * just the part of the original text that has changed.
- */
- ptr = curr_match->str;
- tmp_ptr = original_text;
- while (*tmp_ptr && *tmp_ptr == *ptr)
- {
- ++tmp_ptr;
- ++ptr;
- }
- for (temp = 0; tmp_ptr[temp]; ++temp)
- AppendCharToRedobuff(K_BS);
- AppendToRedobuffLit(ptr);
- }
-
- #ifdef FEAT_CINDENT
- want_cindent = (can_cindent && cindent_on());
- #endif
- /*
- * When completing whole lines: fix indent for 'cindent'.
- * Otherwise, break line if it's too long.
- */
- if (continue_mode == CTRL_X_WHOLE_LINE)
- {
- #ifdef FEAT_CINDENT
- /* re-indent the current line */
- if (want_cindent)
- {
- do_c_expr_indent();
- want_cindent = FALSE; /* don't do it again */
- }
- #endif
- }
- else
- {
- /* put the cursor on the last char, for 'tw' formatting */
- curwin->w_cursor.col--;
- if (stop_arrow() == OK)
- insertchar(NUL, 0, -1);
- curwin->w_cursor.col++;
- }
-
- ins_compl_free();
- started_completion = FALSE;
- completion_matches = 0;
- msg_clr_cmdline(); /* necessary for "noshowmode" */
- ctrl_x_mode = 0;
- p_sm = save_sm;
- if (edit_submode != NULL)
- {
- edit_submode = NULL;
- showmode();
- }
-
- #ifdef FEAT_CINDENT
- /*
- * Indent now if a key was typed that is in 'cinkeys'.
- */
- if (want_cindent && in_cinkeys(KEY_COMPLETE, ' ', inindent(0)))
- do_c_expr_indent();
- #endif
- }
- }
-
- /* reset continue_* if we left expansion-mode, if we stay they'll be
- * (re)set properly in ins_complete() */
- if (!vim_is_ctrl_x_key(c))
- {
- continue_status = 0;
- continue_mode = 0;
- }
- }
-
- /*
- * Loops through the list of windows, loaded-buffers or non-loaded-buffers
- * (depending on flag) starting from buf and looking for a non-scanned
- * buffer (other than curbuf). curbuf is special, if it is called with
- * buf=curbuf then it has to be the first call for a given flag/expansion.
- *
- * Returns the buffer to scan, if any, otherwise returns curbuf -- Acevedo
- */
- static buf_T *
- ins_compl_next_buf(buf, flag)
- buf_T *buf;
- int flag;
- {
- #ifdef FEAT_WINDOWS
- static win_T *wp;
- #endif
-
- if (flag == 'w') /* just windows */
- {
- #ifdef FEAT_WINDOWS
- if (buf == curbuf) /* first call for this flag/expansion */
- wp = curwin;
- while ((wp = wp->w_next != NULL ? wp->w_next : firstwin) != curwin
- && wp->w_buffer->b_scanned)
- ;
- buf = wp->w_buffer;
- #else
- buf = curbuf;
- #endif
- }
- else
- /* 'b' (just loaded buffers), 'u' (just non-loaded buffers) or 'U'
- * (unlisted buffers)
- * When completing whole lines skip unloaded buffers. */
- while ((buf = buf->b_next != NULL ? buf->b_next : firstbuf) != curbuf
- && ((flag == 'U'
- ? buf->b_p_bl
- : (!buf->b_p_bl
- || (buf->b_ml.ml_mfp == NULL) != (flag == 'u')))
- || buf->b_scanned
- || (buf->b_ml.ml_mfp == NULL
- && ctrl_x_mode == CTRL_X_WHOLE_LINE)))
- ;
- return buf;
- }
-
- /*
- * Get the next expansion(s) for the text starting at the initial curbuf
- * position "ini" and in the direction dir.
- * Return the total of matches or -1 if still unknown -- Acevedo
- */
- static int
- ins_compl_get_exp(ini, dir)
- pos_T *ini;
- int dir;
- {
- static pos_T first_match_pos;
- static pos_T last_match_pos;
- static char_u *e_cpt = (char_u *)""; /* curr. entry in 'complete' */
- static int found_all = FALSE; /* Found all matches. */
- static buf_T *ins_buf = NULL;
-
- pos_T *pos;
- char_u **matches;
- int save_p_scs;
- int save_p_ws;
- int save_p_ic;
- int i;
- int num_matches;
- int len;
- int found_new_match;
- int type = ctrl_x_mode;
- char_u *ptr;
- char_u *tmp_ptr;
- char_u *dict = NULL;
- int dict_f = 0;
- struct Completion *old_match;
-
- if (!started_completion)
- {
- for (ins_buf = firstbuf; ins_buf != NULL; ins_buf = ins_buf->b_next)
- ins_buf->b_scanned = 0;
- found_all = FALSE;
- ins_buf = curbuf;
- e_cpt = continue_status & CONT_LOCAL ? (char_u *)"." : curbuf->b_p_cpt;
- last_match_pos = first_match_pos = *ini;
- }
-
- old_match = curr_match; /* remember the last current match */
- pos = (dir == FORWARD) ? &last_match_pos : &first_match_pos;
- /* For ^N/^P loop over all the flags/windows/buffers in 'complete' */
- for (;;)
- {
- found_new_match = FAIL;
-
- /* For ^N/^P pick a new entry from e_cpt if started_completion is off,
- * or if found_all says this entry is done. For ^X^L only use the
- * entries from 'complete' that look in loaded buffers. */
- if ((ctrl_x_mode == 0 || ctrl_x_mode == CTRL_X_WHOLE_LINE)
- && (!started_completion || found_all))
- {
- found_all = FALSE;
- while (*e_cpt == ',' || *e_cpt == ' ')
- e_cpt++;
- if (*e_cpt == '.' && !curbuf->b_scanned)
- {
- ins_buf = curbuf;
- first_match_pos = *ini;
- /* So that ^N can match word immediately after cursor */
- if (ctrl_x_mode == 0)
- dec(&first_match_pos);
- last_match_pos = first_match_pos;
- type = 0;
- }
- else if (vim_strchr((char_u *)"buwU", *e_cpt) != NULL
- && (ins_buf = ins_compl_next_buf(ins_buf, *e_cpt)) != curbuf)
- {
- /* Scan a buffer, but not the current one. */
- if (ins_buf->b_ml.ml_mfp != NULL) /* loaded buffer */
- {
- started_completion = TRUE;
- first_match_pos.col = last_match_pos.col = 0;
- first_match_pos.lnum = ins_buf->b_ml.ml_line_count + 1;
- last_match_pos.lnum = 0;
- type = 0;
- }
- else /* unloaded buffer, scan like dictionary */
- {
- found_all = TRUE;
- if (ins_buf->b_fname == NULL)
- continue;
- type = CTRL_X_DICTIONARY;
- dict = ins_buf->b_fname;
- dict_f = DICT_EXACT;
- }
- sprintf((char *)IObuff, _("Scanning: %s"),
- ins_buf->b_fname == NULL
- ? buf_spname(ins_buf)
- : ins_buf->b_sfname == NULL
- ? (char *)ins_buf->b_fname
- : (char *)ins_buf->b_sfname);
- msg_trunc_attr(IObuff, TRUE, hl_attr(HLF_R));
- }
- else if (*e_cpt == NUL)
- break;
- else
- {
- if (ctrl_x_mode == CTRL_X_WHOLE_LINE)
- type = -1;
- else if (*e_cpt == 'k' || *e_cpt == 's')
- {
- if (*e_cpt == 'k')
- type = CTRL_X_DICTIONARY;
- else
- type = CTRL_X_THESAURUS;
- if (*++e_cpt != ',' && *e_cpt != NUL)
- {
- dict = e_cpt;
- dict_f = DICT_FIRST;
- }
- }
- #ifdef FEAT_FIND_ID
- else if (*e_cpt == 'i')
- type = CTRL_X_PATH_PATTERNS;
- else if (*e_cpt == 'd')
- type = CTRL_X_PATH_DEFINES;
- #endif
- else if (*e_cpt == ']' || *e_cpt == 't')
- {
- type = CTRL_X_TAGS;
- sprintf((char*)IObuff, _("Scanning tags."));
- msg_trunc_attr(IObuff, TRUE, hl_attr(HLF_R));
- }
- else
- type = -1;
-
- /* in any case e_cpt is advanced to the next entry */
- (void)copy_option_part(&e_cpt, IObuff, IOSIZE, ",");
-
- found_all = TRUE;
- if (type == -1)
- continue;
- }
- }
-
- switch (type)
- {
- case -1:
- break;
- #ifdef FEAT_FIND_ID
- case CTRL_X_PATH_PATTERNS:
- case CTRL_X_PATH_DEFINES:
- find_pattern_in_path(complete_pat, dir,
- (int)STRLEN(complete_pat), FALSE, FALSE,
- (type == CTRL_X_PATH_DEFINES
- && !(continue_status & CONT_SOL))
- ? FIND_DEFINE : FIND_ANY, 1L, ACTION_EXPAND,
- (linenr_T)1, (linenr_T)MAXLNUM);
- break;
- #endif
-
- case CTRL_X_DICTIONARY:
- case CTRL_X_THESAURUS:
- ins_compl_dictionaries(
- dict ? dict
- : (type == CTRL_X_THESAURUS
- ? (*curbuf->b_p_tsr == NUL
- ? p_tsr
- : curbuf->b_p_tsr)
- : (*curbuf->b_p_dict == NUL
- ? p_dict
- : curbuf->b_p_dict)),
- complete_pat, dir,
- dict ? dict_f : 0, type == CTRL_X_THESAURUS);
- dict = NULL;
- break;
-
- case CTRL_X_TAGS:
- /* set p_ic according to p_ic, p_scs and pat for find_tags(). */
- save_p_ic = p_ic;
- p_ic = ignorecase(complete_pat);
-
- /* Find up to TAG_MANY matches. Avoids that an enourmous number
- * of matches is found when complete_pat is empty */
- if (find_tags(complete_pat, &num_matches, &matches,
- TAG_REGEXP | TAG_NAMES | TAG_NOIC |
- TAG_INS_COMP | (ctrl_x_mode ? TAG_VERBOSE : 0),
- TAG_MANY) == OK && num_matches > 0)
- {
- ins_compl_add_matches(num_matches, matches, dir);
- }
- p_ic = save_p_ic;
- break;
-
- case CTRL_X_FILES:
- if (expand_wildcards(1, &complete_pat, &num_matches, &matches,
- EW_FILE|EW_DIR|EW_ADDSLASH|EW_SILENT) == OK)
- {
-
- /* May change home directory back to "~". */
- tilde_replace(complete_pat, num_matches, matches);
- ins_compl_add_matches(num_matches, matches, dir);
- }
- break;
-
- case CTRL_X_CMDLINE:
- if (expand_cmdline(&complete_xp, complete_pat,
- (int)STRLEN(complete_pat),
- &num_matches, &matches) == EXPAND_OK)
- ins_compl_add_matches(num_matches, matches, dir);
- break;
-
- default: /* normal ^P/^N and ^X^L */
- /*
- * If 'infercase' is set, don't use 'smartcase' here
- */
- save_p_scs = p_scs;
- if (ins_buf->b_p_inf)
- p_scs = FALSE;
- /* buffers other than curbuf are scanned from the beginning or the
- * end but never from the middle, thus setting nowrapscan in this
- * buffers is a good idea, on the other hand, we always set
- * wrapscan for curbuf to avoid missing matches -- Acevedo,Webb */
- save_p_ws = p_ws;
- if (ins_buf != curbuf)
- p_ws = FALSE;
- else if (*e_cpt == '.')
- p_ws = TRUE;
- for (;;)
- {
- int reuse = 0;
-
- /* ctrl_x_mode == CTRL_X_WHOLE_LINE || word-wise search that has
- * added a word that was at the beginning of the line */
- if ( ctrl_x_mode == CTRL_X_WHOLE_LINE
- || (continue_status & CONT_SOL))
- found_new_match = search_for_exact_line(ins_buf, pos,
- dir, complete_pat);
- else
- found_new_match = searchit(NULL, ins_buf, pos, dir,
- complete_pat, 1L, SEARCH_KEEP + SEARCH_NFMSG,
- RE_LAST);
- if (!started_completion)
- {
- /* set started_completion even on fail */
- started_completion = TRUE;
- first_match_pos = *pos;
- last_match_pos = *pos;
- }
- else if (first_match_pos.lnum == last_match_pos.lnum
- && first_match_pos.col == last_match_pos.col)
- found_new_match = FAIL;
- if (found_new_match == FAIL)
- {
- if (ins_buf == curbuf)
- found_all = TRUE;
- break;
- }
-
- /* when ADDING, the text before the cursor matches, skip it */
- if ( (continue_status & CONT_ADDING) && ins_buf == curbuf
- && ini->lnum == pos->lnum
- && ini->col == pos->col)
- continue;
- ptr = ml_get_buf(ins_buf, pos->lnum, FALSE) + pos->col;
- if (ctrl_x_mode == CTRL_X_WHOLE_LINE)
- {
- if (continue_status & CONT_ADDING)
- {
- if (pos->lnum >= ins_buf->b_ml.ml_line_count)
- continue;
- ptr = ml_get_buf(ins_buf, pos->lnum + 1, FALSE);
- if (!p_paste)
- ptr = skipwhite(ptr);
- }
- len = (int)STRLEN(ptr);
- }
- else
- {
- tmp_ptr = ptr;
- if (continue_status & CONT_ADDING)
- {
- tmp_ptr += completion_length;
- /* Skip if already inside a word. */
- if (vim_iswordp(tmp_ptr))
- continue;
- /* Find start of next word. */
- tmp_ptr = find_word_start(tmp_ptr);
- }
- /* Find end of this word. */
- tmp_ptr = find_word_end(tmp_ptr);
- len = (int)(tmp_ptr - ptr);
-
- if ((continue_status & CONT_ADDING)
- && len == completion_length)
- {
- if (pos->lnum < ins_buf->b_ml.ml_line_count)
- {
- /* Try next line, if any. the new word will be
- * "join" as if the normal command "J" was used.
- * IOSIZE is always greater than
- * completion_length, so the next STRNCPY always
- * works -- Acevedo */
- STRNCPY(IObuff, ptr, len);
- ptr = ml_get_buf(ins_buf, pos->lnum + 1, FALSE);
- tmp_ptr = ptr = skipwhite(ptr);
- /* Find start of next word. */
- tmp_ptr = find_word_start(tmp_ptr);
- /* Find end of next word. */
- tmp_ptr = find_word_end(tmp_ptr);
- if (tmp_ptr > ptr)
- {
- if (*ptr != ')' && IObuff[len-1] != TAB)
- {
- if (IObuff[len-1] != ' ')
- IObuff[len++] = ' ';
- /* IObuf =~ "\k.* ", thus len >= 2 */
- if (p_js
- && (IObuff[len-2] == '.'
- || (vim_strchr(p_cpo, CPO_JOINSP)
- == NULL
- && (IObuff[len-2] == '?'
- || IObuff[len-2] == '!'))))
- IObuff[len++] = ' ';
- }
- /* copy as much as posible of the new word */
- if (tmp_ptr - ptr >= IOSIZE - len)
- tmp_ptr = ptr + IOSIZE - len - 1;
- STRNCPY(IObuff + len, ptr, tmp_ptr - ptr);
- len += (int)(tmp_ptr - ptr);
- reuse |= CONT_S_IPOS;
- }
- IObuff[len] = NUL;
- ptr = IObuff;
- }
- if (len == completion_length)
- continue;
- }
- }
- if (ins_compl_add_infercase(ptr, len,
- ins_buf == curbuf ? NULL : ins_buf->b_sfname,
- dir, reuse) != FAIL)
- {
- found_new_match = OK;
- break;
- }
- }
- p_scs = save_p_scs;
- p_ws = save_p_ws;
- }
- /* check if curr_match has changed, (e.g. other type of expansion
- * added somenthing) */
- if (curr_match != old_match)
- found_new_match = OK;
-
- /* break the loop for specialized modes (use 'complete' just for the
- * generic ctrl_x_mode == 0) or when we've found a new match */
- if ((ctrl_x_mode != 0 && ctrl_x_mode != CTRL_X_WHOLE_LINE)
- || found_new_match != FAIL)
- break;
-
- /* Mark a buffer scanned when it has been scanned completely */
- if (type == 0 || type == CTRL_X_PATH_PATTERNS)
- ins_buf->b_scanned = TRUE;
-
- started_completion = FALSE;
- }
- started_completion = TRUE;
-
- if ((ctrl_x_mode == 0 || ctrl_x_mode == CTRL_X_WHOLE_LINE)
- && *e_cpt == NUL) /* Got to end of 'complete' */
- found_new_match = FAIL;
-
- i = -1; /* total of matches, unknown */
- if (found_new_match == FAIL
- || (ctrl_x_mode != 0 && ctrl_x_mode != CTRL_X_WHOLE_LINE))
- i = ins_compl_make_cyclic();
-
- /* If several matches were added (FORWARD) or the search failed and has
- * just been made cyclic then we have to move curr_match to the next or
- * previous entry (if any) -- Acevedo */
- curr_match = dir == FORWARD ? old_match->next : old_match->prev;
- if (curr_match == NULL)
- curr_match = old_match;
- return i;
- }
-
- /* Delete the old text being completed. */
- static void
- ins_compl_delete()
- {
- int i;
-
- /*
- * In insert mode: Delete the typed part.
- * In replace mode: Put the old characters back, if any.
- */
- i = complete_col + (continue_status & CONT_ADDING ? completion_length : 0);
- backspace_until_column(i);
- changed_cline_bef_curs();
- }
-
- /* Insert the new text being completed. */
- static void
- ins_compl_insert()
- {
- ins_bytes(shown_match->str + curwin->w_cursor.col - complete_col);
- }
-
- /*
- * Fill in the next completion in the current direction.
- * If allow_get_expansion is TRUE, then we may call ins_compl_get_exp() to get
- * more completions. If it is FALSE, then we just do nothing when there are
- * no more completions in a given direction. The latter case is used when we
- * are still in the middle of finding completions, to allow browsing through
- * the ones found so far.
- * Return the total number of matches, or -1 if still unknown -- webb.
- *
- * curr_match is currently being used by ins_compl_get_exp(), so we use
- * shown_match here.
- *
- * Note that this function may be called recursively once only. First with
- * allow_get_expansion TRUE, which calls ins_compl_get_exp(), which in turn
- * calls this function with allow_get_expansion FALSE.
- */
- static int
- ins_compl_next(allow_get_expansion)
- int allow_get_expansion;
- {
- int num_matches = -1;
- int i;
-
- if (allow_get_expansion)
- {
- /* Delete old text to be replaced */
- ins_compl_delete();
- }
- completion_pending = FALSE;
- if (shown_direction == FORWARD && shown_match->next != NULL)
- shown_match = shown_match->next;
- else if (shown_direction == BACKWARD && shown_match->prev != NULL)
- shown_match = shown_match->prev;
- else
- {
- completion_pending = TRUE;
- if (allow_get_expansion)
- {
- num_matches = ins_compl_get_exp(&initial_pos, complete_direction);
- if (completion_pending)
- {
- if (complete_direction == shown_direction)
- shown_match = curr_match;
- }
- }
- else
- return -1;
- }
-
- /* Insert the text of the new completion */
- ins_compl_insert();
-
- if (!allow_get_expansion)
- {
- /* Display the current match. */
- update_screen(0);
-
- /* Delete old text to be replaced, since we're still searching and
- * don't want to match ourselves! */
- ins_compl_delete();
- }
-
- /*
- * Show the file name for the match (if any)
- * Truncate the file name to avoid a wait for return.
- */
- if (shown_match->fname != NULL)
- {
- STRCPY(IObuff, "match in file ");
- i = (vim_strsize(shown_match->fname) + 16) - sc_col;
- if (i <= 0)
- i = 0;
- else
- STRCAT(IObuff, "<");
- STRCAT(IObuff, shown_match->fname + i);
- msg(IObuff);
- redraw_cmdline = FALSE; /* don't overwrite! */
- }
-
- return num_matches;
- }
-
- /*
- * Call this while finding completions, to check whether the user has hit a key
- * that should change the currently displayed completion, or exit completion
- * mode. Also, when completion_pending is TRUE, show a completion as soon as
- * possible. -- webb
- */
- void
- ins_compl_check_keys()
- {
- static int count = 0;
-
- int c;
-
- /* Don't check when reading keys from a script. That would break the test
- * scripts */
- if (using_script())
- return;
-
- /* Only do this at regular intervals */
- if (++count < CHECK_KEYS_TIME)
- return;
- count = 0;
-
- c = vpeekc_any();
- if (c != NUL)
- {
- if (vim_is_ctrl_x_key(c) && c != Ctrl_X && c != Ctrl_R)
- {
- c = safe_vgetc(); /* Eat the character */
- if (c == Ctrl_P || c == Ctrl_L)
- shown_direction = BACKWARD;
- else
- shown_direction = FORWARD;
- (void)ins_compl_next(FALSE);
- }
- else if (c != Ctrl_R)
- completion_interrupted = TRUE;
- }
- if (completion_pending && !got_int)
- (void)ins_compl_next(FALSE);
- }
-
- /*
- * Do Insert mode completion.
- * Called when character "c" was typed, which has a meaning for completion.
- * Returns OK if completion was done, FAIL if something failed (out of mem).
- */
- static int
- ins_complete(c)
- int c;
- {
- char_u *line;
- char_u *tmp_ptr = NULL; /* init for gcc */
- int temp = 0;
-
- if (c == Ctrl_P || c == Ctrl_L)
- complete_direction = BACKWARD;
- else
- complete_direction = FORWARD;
- if (!started_completion)
- {
- /* First time we hit ^N or ^P (in a row, I mean) */
-
- /* Turn off 'sm' so we don't show matches with ^X^L */
- save_sm = p_sm;
- p_sm = FALSE;
-
- did_ai = FALSE;
- #ifdef FEAT_SMARTINDENT
- did_si = FALSE;
- can_si = FALSE;
- can_si_back = FALSE;
- #endif
- if (stop_arrow() == FAIL)
- return FAIL;
-
- line = ml_get(curwin->w_cursor.lnum);
- complete_col = curwin->w_cursor.col;
-
- /* if this same ctrl_x_mode has been interrupted use the text from
- * "initial_pos" to the cursor as a pattern to add a new word instead
- * of expand the one before the cursor, in word-wise if "initial_pos"
- * is not in the same line as the cursor then fix it (the line has
- * been split because it was longer than 'tw'). if SOL is set then
- * skip the previous pattern, a word at the beginning of the line has
- * been inserted, we'll look for that -- Acevedo. */
- if ((continue_status & CONT_INTRPT) && continue_mode == ctrl_x_mode)
- {
- /*
- * it is a continued search
- */
- continue_status &= ~CONT_INTRPT; /* remove INTRPT */
- if (ctrl_x_mode == 0 || ctrl_x_mode == CTRL_X_PATH_PATTERNS
- || ctrl_x_mode == CTRL_X_PATH_DEFINES)
- {
- if (initial_pos.lnum != curwin->w_cursor.lnum)
- {
- /* line (probably) wrapped, set initial_pos to the first
- * non_blank in the line, if it is not a wordchar include
- * it to get a better pattern, but then we don't want the
- * "\\<" prefix, check it bellow */
- tmp_ptr = skipwhite(line);
- initial_pos.col = (colnr_T) (tmp_ptr - line);
- initial_pos.lnum = curwin->w_cursor.lnum;
- continue_status &= ~CONT_SOL; /* clear SOL if present */
- }
- else
- {
- /* S_IPOS was set when we inserted a word that was at the
- * beginning of the line, which means that we'll go to SOL
- * mode but first we need to redefine initial_pos */
- if (continue_status & CONT_S_IPOS)
- {
- continue_status |= CONT_SOL;
- initial_pos.col = (colnr_T) (skipwhite(line + completion_length +
- initial_pos.col) - line);
- }
- tmp_ptr = line + initial_pos.col;
- }
- temp = curwin->w_cursor.col - (int)(tmp_ptr - line);
- /* IObuf is used to add a "word from the next line" would we
- * have enough space? just being paranoic */
- #define MIN_SPACE 75
- if (temp > (IOSIZE - MIN_SPACE))
- {
- continue_status &= ~CONT_SOL;
- temp = (IOSIZE - MIN_SPACE);
- tmp_ptr = line + curwin->w_cursor.col - temp;
- }
- continue_status |= CONT_ADDING | CONT_N_ADDS;
- if (temp < 1)
- continue_status &= CONT_LOCAL;
- }
- else if (ctrl_x_mode == CTRL_X_WHOLE_LINE)
- continue_status = CONT_ADDING | CONT_N_ADDS;
- else
- continue_status = 0;
- }
- else
- continue_status &= CONT_LOCAL;
-
- if (!(continue_status & CONT_ADDING)) /* normal expansion */
- {
- continue_mode = ctrl_x_mode;
- if (ctrl_x_mode != 0) /* Remove LOCAL if ctrl_x_mode != 0 */
- continue_status = 0;
- continue_status |= CONT_N_ADDS;
- initial_pos = curwin->w_cursor;
- temp = (int)complete_col;
- tmp_ptr = line;
- }
-
- /* Work out completion pattern and original text -- webb */
- if (ctrl_x_mode == 0 || (ctrl_x_mode & CTRL_X_WANT_IDENT))
- {
- if ( (continue_status & CONT_SOL)
- || ctrl_x_mode == CTRL_X_PATH_DEFINES)
- {
- if (!(continue_status & CONT_ADDING))
- {
- while (--temp >= 0 && vim_isIDc(line[temp]))
- ;
- tmp_ptr += ++temp;
- temp = complete_col - temp;
- }
- complete_pat = vim_strnsave(tmp_ptr, temp);
- if (complete_pat == NULL)
- return FAIL;
- if (p_ic)
- str_foldcase(complete_pat);
- }
- else if (continue_status & CONT_ADDING)
- {
- char_u *prefix = (char_u *)"\\<";
-
- /* we need 3 extra chars, 1 for the NUL and
- * 2 >= strlen(prefix) -- Acevedo */
- complete_pat = alloc(quote_meta(NULL, tmp_ptr, temp) + 3);
- if (complete_pat == NULL)
- return FAIL;
- if (!vim_iswordp(tmp_ptr)
- || (tmp_ptr > line
- && (
- #ifdef FEAT_MBYTE
- vim_iswordp(mb_prevptr(line, tmp_ptr))
- #else
- vim_iswordc(*(tmp_ptr - 1))
- #endif
- )))
- prefix = (char_u *)"";
- STRCPY((char *)complete_pat, prefix);
- (void)quote_meta(complete_pat + STRLEN(prefix), tmp_ptr, temp);
- }
- else if (
- #ifdef FEAT_MBYTE
- --temp < 0 || !vim_iswordp(mb_prevptr(line,
- line + temp + 1))
- #else
- --temp < 0 || !vim_iswordc(line[temp])
- #endif
- )
- {
- /* Match any word of at least two chars */
- complete_pat = vim_strsave((char_u *)"\\<\\k\\k");
- if (complete_pat == NULL)
- return FAIL;
- tmp_ptr += complete_col;
- temp = 0;
- }
- else
- {
- #ifdef FEAT_MBYTE
- /* Search the point of change class of multibyte character
- * or not a word single byte character backward. */
- if (has_mbyte)
- {
- int base_class;
- int head_off;
-
- temp -= (*mb_head_off)(line, line + temp);
- base_class = mb_get_class(line + temp);
- while (--temp >= 0)
- {
- head_off = (*mb_head_off)(line, line + temp);
- if (base_class != mb_get_class(line + temp - head_off))
- break;
- temp -= head_off;
- }
- }
- else
- #endif
- while (--temp >= 0 && vim_iswordc(line[temp]))
- ;
- tmp_ptr += ++temp;
- if ((temp = (int)complete_col - temp) == 1)
- {
- /* Only match word with at least two chars -- webb
- * there's no need to call quote_meta,
- * alloc(7) is enough -- Acevedo
- */
- complete_pat = alloc(7);
- if (complete_pat == NULL)
- return FAIL;
- STRCPY((char *)complete_pat, "\\<");
- (void)quote_meta(complete_pat + 2, tmp_ptr, 1);
- STRCAT((char *)complete_pat, "\\k");
- }
- else
- {
- complete_pat = alloc(quote_meta(NULL, tmp_ptr, temp) + 3);
- if (complete_pat == NULL)
- return FAIL;
- STRCPY((char *)complete_pat, "\\<");
- (void)quote_meta(complete_pat + 2, tmp_ptr, temp);
- }
- }
- }
- else if (ctrl_x_mode == CTRL_X_WHOLE_LINE)
- {
- tmp_ptr = skipwhite(line);
- temp = (int)complete_col - (int)(tmp_ptr - line);
- if (temp < 0) /* cursor in indent: empty pattern */
- temp = 0;
- complete_pat = vim_strnsave(tmp_ptr, temp);
- if (complete_pat == NULL)
- return FAIL;
- if (p_ic)
- str_foldcase(complete_pat);
- }
- else if (ctrl_x_mode == CTRL_X_FILES)
- {
- while (--temp >= 0 && vim_isfilec(line[temp]))
- ;
- tmp_ptr += ++temp;
- temp = (int)complete_col - temp;
- complete_pat = addstar(tmp_ptr, temp, EXPAND_FILES);
- if (complete_pat == NULL)
- return FAIL;
- }
- else if (ctrl_x_mode == CTRL_X_CMDLINE)
- {
- complete_pat = vim_strnsave(line, complete_col);
- if (complete_pat == NULL)
- return FAIL;
- set_cmd_context(&complete_xp, complete_pat,
- (int)STRLEN(complete_pat), complete_col);
- if (complete_xp.xp_context == EXPAND_UNSUCCESSFUL
- || complete_xp.xp_context == EXPAND_NOTHING)
- return FAIL;
- temp = (int)(complete_xp.xp_pattern - complete_pat);
- tmp_ptr = line + temp;
- temp = complete_col - temp;
- }
- complete_col = (colnr_T) (tmp_ptr - line);
-
- if (continue_status & CONT_ADDING)
- {
- edit_submode_pre = (char_u *)_(" Adding");
- if (ctrl_x_mode == CTRL_X_WHOLE_LINE)
- {
- /* Insert a new line, keep indentation but ignore 'comments' */
- #ifdef FEAT_COMMENTS
- char_u *old = curbuf->b_p_com;
-
- curbuf->b_p_com = (char_u *)"";
- #endif
- initial_pos.lnum = curwin->w_cursor.lnum;
- initial_pos.col = complete_col;
- ins_eol('\r');
- #ifdef FEAT_COMMENTS
- curbuf->b_p_com = old;
- #endif
- tmp_ptr = (char_u *)"";
- temp = 0;
- complete_col = curwin->w_cursor.col;
- }
- }
- else
- {
- edit_submode_pre = NULL;
- initial_pos.col = complete_col;
- }
-
- if (continue_status & CONT_LOCAL)
- edit_submode = (char_u *)_(ctrl_x_msgs[2]);
- else
- edit_submode = (char_u *)_(CTRL_X_MSG(ctrl_x_mode));
-
- completion_length = temp;
-
- /* Always add completion for the original text. Note that
- * "original_text" itself (not a copy) is added, it will be freed when
- * the list of matches is freed. */
- if ((original_text = vim_strnsave(tmp_ptr, temp)) == NULL
- || ins_compl_add(original_text, -1, NULL, 0, ORIGINAL_TEXT) != OK)
- {
- vim_free(complete_pat);
- complete_pat = NULL;
- vim_free(original_text);
- return FAIL;
- }
-
- /* showmode might reset the internal line pointers, so it must
- * be called before line = ml_get(), or when this address is no
- * longer needed. -- Acevedo.
- */
- edit_submode_extra = (char_u *)_("-- Searching...");
- edit_submode_highl = HLF_COUNT;
- showmode();
- edit_submode_extra = NULL;
- out_flush();
- }
-
- shown_match = curr_match;
- shown_direction = complete_direction;
-
- /*
- * Find next match.
- */
- temp = ins_compl_next(TRUE);
-
- if (temp > 1) /* all matches have been found */
- completion_matches = temp;
- curr_match = shown_match;
- complete_direction = shown_direction;
- completion_interrupted = FALSE;
-
- /* eat the ESC to avoid leaving insert mode */
- if (got_int && !global_busy)
- {
- (void)vgetc();
- got_int = FALSE;
- }
-
- /* we found no match if the list has only the original_text-entry */
- if (first_match == first_match->next)
- {
- edit_submode_extra = (continue_status & CONT_ADDING)
- && completion_length > 1
- ? (char_u *)_(e_hitend) : (char_u *)_(e_patnotf);
- edit_submode_highl = HLF_E;
- /* remove N_ADDS flag, so next ^X<> won't try to go to ADDING mode,
- * because we couldn't expand anything at first place, but if we used
- * ^P, ^N, ^X^I or ^X^D we might want to add-expand a single-char-word
- * (such as M in M'exico) if not tried already. -- Acevedo */
- if ( completion_length > 1
- || (continue_status & CONT_ADDING)
- || (ctrl_x_mode != 0
- && ctrl_x_mode != CTRL_X_PATH_PATTERNS
- && ctrl_x_mode != CTRL_X_PATH_DEFINES))
- continue_status &= ~CONT_N_ADDS;
- }
-
- if (curr_match->original & CONT_S_IPOS)
- continue_status |= CONT_S_IPOS;
- else
- continue_status &= ~CONT_S_IPOS;
-
- if (edit_submode_extra == NULL)
- {
- if (curr_match->original & ORIGINAL_TEXT)
- {
- edit_submode_extra = (char_u *)_("Back at original");
- edit_submode_highl = HLF_W;
- }
- else if (continue_status & CONT_S_IPOS)
- {
- edit_submode_extra = (char_u *)_("Word from other line");
- edit_submode_highl = HLF_COUNT;
- }
- else if (curr_match->next == curr_match->prev)
- {
- edit_submode_extra = (char_u *)_("The only match");
- edit_submode_highl = HLF_COUNT;
- }
- else
- {
- /* Update completion sequence number when needed. */
- if (curr_match->number == -1)
- {
- int number = 0;
- struct Completion *match;
-
- if (complete_direction == FORWARD)
- {
- /* search backwards for the first valid (!= -1) number.
- * This should normally succeed already at the first loop
- * cycle, so it's fast! */
- for (match = curr_match->prev; match != NULL
- && match != first_match; match = match->prev)
- if (match->number != -1)
- {
- number = match->number;
- break;
- }
- if (match != NULL)
- /* go up and assign all numbers which are not assigned
- * yet */
- for (match = match->next; match
- && match->number == -1; match = match->next)
- match->number = ++number;
- }
- else /* BACKWARD */
- {
- /* search forwards (upwards) for the first valid (!= -1)
- * number. This should normally succeed already at the
- * first loop cycle, so it's fast! */
- for (match = curr_match->next; match != NULL
- && match != first_match; match = match->next)
- if (match->number != -1)
- {
- number = match->number;
- break;
- }
- if (match != NULL)
- /* go down and assign all numbers which are not
- * assigned yet */
- for (match = match->prev; match
- && match->number == -1; match = match->prev)
- match->number = ++number;
- }
- }
-
- /* The match should always have a sequnce number now, this is just
- * a safety check. */
- if (curr_match->number != -1)
- {
- /* Space for 10 text chars. + 2x10-digit no.s */
- static char_u match_ref[31];
-
- if (completion_matches > 0)
- sprintf((char *)IObuff, _("match %d of %d"),
- curr_match->number, completion_matches);
- else
- sprintf((char *)IObuff, _("match %d"), curr_match->number);
- STRNCPY(match_ref, IObuff, 30 );
- match_ref[30] = '\0';
- edit_submode_extra = match_ref;
- edit_submode_highl = HLF_R;
- if (dollar_vcol)
- curs_columns(FALSE);
- }
- }
- }
-
- /* Show a message about what (completion) mode we're in. */
- showmode();
- if (edit_submode_extra != NULL)
- {
- if (!p_smd)
- msg_attr(edit_submode_extra,
- edit_submode_highl < HLF_COUNT
- ? hl_attr(edit_submode_highl) : 0);
- }
- else
- msg_clr_cmdline(); /* necessary for "noshowmode" */
-
- return OK;
- }
-
- /*
- * Looks in the first "len" chars. of "src" for search-metachars.
- * If dest is not NULL the chars. are copied there quoting (with
- * a backslash) the metachars, and dest would be NUL terminated.
- * Returns the length (needed) of dest
- */
- static int
- quote_meta(dest, src, len)
- char_u *dest;
- char_u *src;
- int len;
- {
- int m;
-
- for (m = len; --len >= 0; src++)
- {
- switch (*src)
- {
- case '.':
- case '*':
- case '[':
- if (ctrl_x_mode == CTRL_X_DICTIONARY
- || ctrl_x_mode == CTRL_X_THESAURUS)
- break;
- case '~':
- if (!p_magic) /* quote these only if magic is set */
- break;
- case '\\':
- if (ctrl_x_mode == CTRL_X_DICTIONARY
- || ctrl_x_mode == CTRL_X_THESAURUS)
- break;
- case '^': /* currently it's not needed. */
- case '$':
- m++;
- if (dest != NULL)
- *dest++ = '\\';
- break;
- }
- if (dest != NULL)
- *dest++ = *src;
- #ifdef FEAT_MBYTE
- /* Copy remaining bytes of a multibyte character. */
- if (has_mbyte)
- {
- int i, mb_len;
-
- mb_len = (*mb_ptr2len_check)(src) - 1;
- if (mb_len > 0 && len >= mb_len)
- for (i = 0; i < mb_len; ++i)
- {
- --len;
- ++src;
- if (dest != NULL)
- *dest++ = *src;
- }
- }
- #endif
- }
- if (dest != NULL)
- *dest = NUL;
-
- return m;
- }
- #endif /* FEAT_INS_EXPAND */
-
- /*
- * 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()
- {
- int cc;
- int nc;
- int i;
- int hex = FALSE;
- int octal = FALSE;
- #ifdef FEAT_MBYTE
- int unicode = 0;
- #endif
-
- 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 (;;)
- {
- do
- nc = safe_vgetc();
- while (nc == K_IGNORE || nc == K_VER_SCROLLBAR
- || nc == K_HOR_SCROLLBAR);
- #ifdef FEAT_CMDL_INFO
- if (!(State & CMDLINE)
- # ifdef FEAT_MBYTE
- && MB_BYTE2LEN_CHECK(nc) == 1
- # endif
- )
- add_to_showcmd(nc);
- #endif
- if (nc == 'x' || nc == 'X')
- hex = TRUE;
- else if (nc == 'o' || nc == 'O')
- octal = TRUE;
- #ifdef FEAT_MBYTE
- else if (nc == 'u' || nc == 'U')
- unicode = nc;
- #endif
- else
- {
- if (hex
- #ifdef FEAT_MBYTE
- || unicode != 0
- #endif
- )
- {
- /* Careful: isxdigit() on Win32 can handle only 0-255 */
- if (nc < 0 || nc > 255 || (!vim_isdigit(nc) && !isxdigit(nc)))
- break;
- cc = cc * 16 + hex2nr(nc);
- }
- else if (octal)
- {
- if (!vim_isdigit(nc) || (nc > '7'))
- break;
- cc = cc * 8 + nc - '0';
- }
- else
- {
- if (!vim_isdigit(nc))
- break;
- cc = cc * 10 + nc - '0';
- }
-
- ++i;
- }
-
- if (cc > 255
- #ifdef FEAT_MBYTE
- && unicode == 0
- #endif
- )
- cc = 255; /* limit range to 0-255 */
- nc = 0;
-
- if (hex) /* hex: up to two chars */
- {
- if (i >= 2)
- break;
- }
- #ifdef FEAT_MBYTE
- else if (unicode) /* Unicode: up to four or eight chars */
- {
- if ((unicode == 'u' && i >= 4) || (unicode == 'U' && i >= 8))
- break;
- }
- #endif
- 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';
-
- --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(c, allow_modmask, ctrlv)
- int c;
- int allow_modmask;
- int ctrlv; /* c was typed after CTRL-V */
- {
- char_u *p;
- int len;
-
- /*
- * Special function key, translate into "<Key>". Up to the last '>' is
- * inserted with ins_str(), so as not to replace characters in replace
- * mode.
- * Only use mod_mask for special keys, to avoid things like <S-Space>,
- * unless 'allow_modmask' is TRUE.
- */
- if (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);
- 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
-
- void
- insertchar(c, flags, second_indent)
- int c; /* character to insert or NUL */
- int flags; /* INSCHAR_FORMAT, etc. */
- int second_indent; /* indent for second line if >= 0 */
- {
- int haveto_redraw = FALSE;
- int textwidth;
- #ifdef FEAT_COMMENTS
- colnr_T leader_len;
- char_u *p;
- int no_leader = FALSE;
- int do_comments = (flags & INSCHAR_DO_COM);
- #endif
- int first_line = TRUE;
- int fo_ins_blank;
- #ifdef FEAT_MBYTE
- int fo_multibyte;
- #endif
- int save_char = NUL;
- int cc;
-
- textwidth = comp_textwidth(flags & INSCHAR_FORMAT);
- fo_ins_blank = has_format_option(FO_INS_BLANK);
- #ifdef FEAT_MBYTE
- fo_multibyte = has_format_option(FO_MULTIBYTE);
- #endif
-
- /*
- * Try to break the line in two or more pieces when:
- * - Always do this if we have been called to do formatting only.
- * - 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
- && ((flags & INSCHAR_FORMAT)
- || (!vim_iswhite(c)
- && !((State & REPLACE_FLAG)
- #ifdef FEAT_VREPLACE
- && !(State & VREPLACE_FLAG)
- #endif
- && *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
- ))))))
- {
- /*
- * 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)
- {
- 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;
- #ifdef FEAT_VREPLACE
- int orig_col = 0;
- char_u *saved_text = NULL;
- #endif
- colnr_T col;
-
- virtcol = get_nolist_virtcol();
- 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);
- 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))
-
- {
- textwidth = 0;
- 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 - 1;
- #ifdef FEAT_MBYTE
- /* Correct cursor for multi-byte character. */
- if (has_mbyte)
- mb_adjust_cursor();
- #endif
- foundcol = 0;
-
- /*
- * Find position to break at.
- * Stop at start of line.
- * Stop at first entered white when 'formatoptions' has 'v'
- */
- while (curwin->w_cursor.col > 0
- && ((!fo_ins_blank && !has_format_option(FO_INS_VI))
- || curwin->w_cursor.lnum != Insstart.lnum
- || curwin->w_cursor.col >= Insstart.col))
- {
- cc = gchar_cursor();
- #ifdef FEAT_MBYTE
- if (cc >= 0x100 && fo_multibyte)
- {
- /* Break at a multi-byte character. */
- end_foundcol = curwin->w_cursor.col;
- foundcol = curwin->w_cursor.col;
- dec_cursor();
- if (curwin->w_cursor.col < (colnr_T)wantcol)
- break;
- continue;
- }
- #endif
- if (vim_iswhite(cc))
- {
- /* remember position of blank just before text */
- end_foundcol = curwin->w_cursor.col;
-
- /* find start of sequence of blanks */
- while (curwin->w_cursor.col > 0 && vim_iswhite(cc))
- {
- dec_cursor();
- cc = gchar_cursor();
- }
- if (curwin->w_cursor.col == 0 && vim_iswhite(cc))
- break; /* only spaces in front of text */
- #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 */
-
- col = curwin->w_cursor.col;
- dec_cursor();
- cc = gchar_cursor();
-
- if (vim_iswhite(cc))
- continue; /* one-letter, continue */
- curwin->w_cursor.col = col;
- }
- #ifdef FEAT_MBYTE
- if (has_mbyte)
- foundcol = curwin->w_cursor.col
- + (*mb_ptr2len_check)(ml_get_cursor());
- else
- #endif
- foundcol = curwin->w_cursor.col + 1;
- if (curwin->w_cursor.col < (colnr_T)wantcol)
- 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.
- */
- #ifdef FEAT_VREPLACE
- if (State & VREPLACE_FLAG)
- orig_col = startcol; /* Will start backspacing from here */
- else
- #endif
- replace_offset = startcol - end_foundcol - 1;
-
- /*
- * 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(), vim_iswhite(cc))
- inc_cursor();
- startcol -= curwin->w_cursor.col;
- if (startcol < 0)
- startcol = 0;
-
- #ifdef FEAT_VREPLACE
- 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 */
- backspace_until_column(foundcol);
- }
- else
- #endif
- {
- /* put cursor after pos. to break line */
- 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
- #ifdef FEAT_COMMENTS
- + (do_comments ? OPENLINE_DO_COM : 0)
- #endif
- , old_indent);
- old_indent = 0;
-
- replace_offset = 0;
- if (first_line)
- {
- if (second_indent < 0 && has_format_option(FO_Q_NUMBER))
- second_indent = get_number_indent(curwin->w_cursor.lnum -1);
- if (second_indent >= 0)
- {
- #ifdef FEAT_VREPLACE
- if (State & VREPLACE_FLAG)
- change_indent(INDENT_SET, second_indent, FALSE, NUL);
- else
- #endif
- (void)set_indent(second_indent, SIN_CHANGED);
- }
- first_line = FALSE;
- }
-
- #ifdef FEAT_VREPLACE
- 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
- #endif
- {
- /*
- * 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) /* put back space after cursor */
- pchar_cursor(save_char);
-
- if (c == NUL) /* formatting only */
- return;
- if (haveto_redraw)
- {
- update_topline();
- redraw_curbuf_later(VALID);
- }
- }
- 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);
- 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)..
- */
- #ifdef USE_ON_FLY_SCROLL
- dont_scroll = FALSE; /* allow scrolling here */
- #endif
-
- if ( !ISSPECIAL(c)
- #ifdef FEAT_MBYTE
- && (!has_mbyte || (*mb_char2len)(c) == 1)
- #endif
- && 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)
- 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)
- #ifdef FEAT_MBYTE
- && (!has_mbyte || MB_BYTE2LEN_CHECK(c) == 1)
- #endif
- && 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 */
- # ifdef FEAT_FKMAP
- if (p_fkmap && KeyTyped)
- c = fkmap(c); /* Farsi mode mapping */
- # endif
- 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);
- }
- else
- {
- #ifdef FEAT_MBYTE
- 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
- #endif
- {
- ins_char(c);
- if (flags & INSCHAR_CTRLV)
- redo_literal(c);
- else
- AppendCharToRedobuff(c);
- }
- }
- }
-
- /*
- * Find out textwidth to be used for formatting:
- * if 'textwidth' option is set, use it
- * else if 'wrapmargin' option is set, use W_WIDTH(curwin) - 'wrapmargin'
- * if invalid value, use 0.
- * Set default to window width (maximum 79) for "Q" command.
- */
- int
- comp_textwidth(ff)
- int ff; /* force formatting (for "Q" command) */
- {
- int textwidth;
-
- textwidth = curbuf->b_p_tw;
- if (textwidth == 0 && curbuf->b_p_wm)
- textwidth = W_WIDTH(curwin) - curbuf->b_p_wm;
- if (textwidth < 0)
- textwidth = 0;
- if (ff && textwidth == 0)
- {
- textwidth = W_WIDTH(curwin) - 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(c)
- int c;
- {
- char_u buf[10];
-
- /* Only digits need special treatment. Translate them into a string of
- * three digits. */
- if (vim_isdigit(c))
- {
- sprintf((char *)buf, "%03d", c);
- AppendToRedobuff(buf);
- }
- else
- AppendCharToRedobuff(c);
- }
-
- /*
- * start_arrow() is called when an arrow key is used in insert mode.
- * It resembles hitting the <ESC> key.
- */
- static void
- start_arrow(end_insert_pos)
- pos_T *end_insert_pos;
- {
- if (!arrow_used) /* something has been inserted */
- {
- AppendToRedobuff(ESC_STR);
- arrow_used = TRUE; /* this means we stopped the current insert */
- stop_insert(end_insert_pos);
- }
- }
-
- /*
- * 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()
- {
- if (arrow_used)
- {
- if (u_save_cursor() == OK)
- {
- arrow_used = FALSE;
- ins_need_undo = FALSE;
- }
- Insstart = curwin->w_cursor; /* new insertion starts here */
- Insstart_textlen = linetabsize(ml_get_curline());
- ai_col = 0;
- #ifdef FEAT_VREPLACE
- if (State & VREPLACE_FLAG)
- {
- orig_line_count = curbuf->b_ml.ml_line_count;
- vr_lines_changed = 1;
- }
- #endif
- ResetRedobuff();
- AppendToRedobuff((char_u *)"1i"); /* pretend we start an insertion */
- }
- 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
- */
- static void
- stop_insert(end_insert_pos)
- pos_T *end_insert_pos; /* where insert ended */
- {
- int cc;
-
- stop_redo_ins();
- replace_flush(); /* abandon replace stack */
-
- /*
- * save the inserted text for later redo with ^@
- */
- vim_free(last_insert);
- last_insert = get_inserted();
- last_insert_skip = new_insert_skip;
-
- /*
- * If we just did an auto-indent, remove the white space from the end of
- * the line, and put the cursor back.
- */
- if (did_ai && !arrow_used)
- {
- if (gchar_cursor() == NUL && curwin->w_cursor.col > 0)
- --curwin->w_cursor.col;
- while (cc = gchar_cursor(), vim_iswhite(cc))
- (void)del_char(TRUE);
- if (cc != NUL)
- ++curwin->w_cursor.col; /* put cursor back on the NUL */
- }
- did_ai = FALSE;
- #ifdef FEAT_SMARTINDENT
- did_si = FALSE;
- can_si = FALSE;
- can_si_back = FALSE;
- #endif
-
- /* set '[ and '] to the inserted text */
- curbuf->b_op_start = Insstart;
- 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(c)
- int c;
- {
- char_u *s;
-
- vim_free(last_insert);
- #ifdef FEAT_MBYTE
- last_insert = alloc(MB_MAXBYTES * 3 + 5);
- #else
- last_insert = alloc(6);
- #endif
- 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;
- }
- }
-
- /*
- * 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(c, s)
- int c;
- char_u *s;
- {
- #ifdef FEAT_MBYTE
- char_u temp[MB_MAXBYTES];
- int i;
- int len;
-
- len = (*mb_char2bytes)(c, temp);
- for (i = 0; i < len; ++i)
- {
- c = temp[i];
- #endif
- /* 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;
- #ifdef FEAT_MBYTE
- }
- #endif
- 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(flags)
- int flags;
- {
- if ((flags & BL_SOL) && !p_sol)
- coladvance(curwin->w_curswant);
- else
- {
- curwin->w_cursor.col = 0;
- #ifdef FEAT_VIRTUALEDIT
- curwin->w_cursor.coladd = 0;
- #endif
-
- 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.
- * Return OK when successful, FAIL when we hit a line of file boundary.
- */
-
- int
- oneright()
- {
- char_u *ptr;
- #ifdef FEAT_MBYTE
- int l;
- #endif
-
- #ifdef FEAT_VIRTUALEDIT
- if (virtual_active())
- {
- /* Adjust for multi-wide char (not include TAB) */
- ptr = ml_get_cursor();
- coladvance(getviscol() + ((*ptr != TAB && *ptr != NUL)
- ? ptr2cells(ptr) : 1));
- curwin->w_set_curswant = TRUE;
- return OK;
- }
- #endif
-
- ptr = ml_get_cursor();
- #ifdef FEAT_MBYTE
- if (has_mbyte && (l = (*mb_ptr2len_check)(ptr)) > 1)
- {
- /* The character under the cursor is a multi-byte character, move
- * several bytes right, but don't end up on the NUL. */
- if (ptr[l] == NUL)
- return FAIL;
- curwin->w_cursor.col += l;
- }
- else
- #endif
- {
- if (*ptr++ == NUL || *ptr == NUL)
- return FAIL;
- ++curwin->w_cursor.col;
- }
-
- curwin->w_set_curswant = TRUE;
- return OK;
- }
-
- int
- oneleft()
- {
- #ifdef FEAT_VIRTUALEDIT
- if (virtual_active())
- {
- int width;
- char_u *ptr;
- int v = getviscol();
-
- if (v == 0)
- return FAIL;
-
- coladvance(v - 1);
- /* Adjust for multi-wide char (not include TAB) */
- ptr = ml_get_cursor();
- if (*ptr != TAB && *ptr != NUL && (width = ptr2cells(ptr)) > 1)
- coladvance(v - width);
-
- curwin->w_set_curswant = TRUE;
- return OK;
- }
- #endif
-
- if (curwin->w_cursor.col == 0)
- return FAIL;
-
- curwin->w_set_curswant = TRUE;
- --curwin->w_cursor.col;
-
- #ifdef FEAT_MBYTE
- /* 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();
- #endif
- return OK;
- }
-
- int
- cursor_up(n, upd_topline)
- long n;
- int upd_topline; /* When TRUE: update topline */
- {
- linenr_T lnum;
-
- if (n > 0)
- {
- lnum = curwin->w_cursor.lnum;
- if (lnum <= 1)
- 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 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(n, upd_topline)
- 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
- if (lnum >= curbuf->b_ml.ml_line_count)
- 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(c, count, no_esc)
- 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()
- {
- 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()
- {
- 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(c)
- 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.
- */
-
- char_u *replace_stack = NULL;
- long replace_stack_nr = 0; /* next entry in replace stack */
- long replace_stack_len = 0; /* max. number of entries */
-
- void
- replace_push(c)
- 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 = lalloc(sizeof(char_u) * replace_stack_len, TRUE);
- 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;
- }
-
- /*
- * call replace_push(c) with replace_offset set to the first NUL.
- */
- static void
- replace_push_off(c)
- int c;
- {
- char_u *p;
-
- p = replace_stack + replace_stack_nr;
- for (replace_offset = 1; replace_offset < replace_stack_nr;
- ++replace_offset)
- if (*--p == NUL)
- break;
- replace_push(c);
- replace_offset = 0;
- }
-
- /*
- * Pop one item from the replace stack.
- * return -1 if stack empty
- * return replaced character or NUL otherwise
- */
- static int
- replace_pop()
- {
- 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(off)
- 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()
- {
- int cc;
- int oldState = State;
-
- State = NORMAL; /* don't want REPLACE here */
- while ((cc = replace_pop()) > 0)
- {
- #ifdef FEAT_MBYTE
- mb_replace_pop_ins(cc);
- #else
- ins_char(cc);
- #endif
- dec_cursor();
- }
- State = oldState;
- }
-
- #ifdef FEAT_MBYTE
- /*
- * 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(cc)
- int cc;
- {
- int n;
- char_u buf[MB_MAXBYTES];
- 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;
- }
- }
- }
- }
- #endif
-
- /*
- * make the replace stack empty
- * (called when exiting replace mode)
- */
- static void
- replace_flush()
- {
- vim_free(replace_stack);
- replace_stack = NULL;
- 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
- */
- static void
- replace_do_bs()
- {
- int cc;
- #ifdef FEAT_VREPLACE
- int orig_len = 0;
- int ins_len;
- int orig_vcols = 0;
- colnr_T start_vcol;
- char_u *p;
- int i;
- int vcol;
- #endif
-
- cc = replace_pop();
- if (cc > 0)
- {
- #ifdef FEAT_VREPLACE
- 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);
- }
- #endif
- #ifdef FEAT_MBYTE
- if (has_mbyte)
- {
- del_char(FALSE);
- # ifdef FEAT_VREPLACE
- if (State & VREPLACE_FLAG)
- orig_len = STRLEN(ml_get_cursor());
- # endif
- replace_push(cc);
- }
- else
- #endif
- {
- pchar_cursor(cc);
- #ifdef FEAT_VREPLACE
- if (State & VREPLACE_FLAG)
- orig_len = STRLEN(ml_get_cursor()) - 1;
- #endif
- }
- replace_pop_ins();
-
- #ifdef FEAT_VREPLACE
- if (State & VREPLACE_FLAG)
- {
- /* Get the number of screen cells used by the inserted characters */
- p = ml_get_cursor();
- ins_len = STRLEN(p) - orig_len;
- vcol = start_vcol;
- for (i = 0; i < ins_len; ++i)
- {
- vcol += chartabsize(p + i, vcol);
- #ifdef FEAT_MBYTE
- i += (*mb_ptr2len_check)(p) - 1;
- #endif
- }
- 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;
- }
- #endif
-
- /* mark the buffer as changed and prepare for displaying */
- changed_bytes(curwin->w_cursor.lnum, curwin->w_cursor.col);
- }
- else if (cc == 0)
- (void)del_char(FALSE);
- }
-
- #ifdef FEAT_CINDENT
- /*
- * Return TRUE if C-indenting is on.
- */
- static int
- cindent_on()
- {
- return (!p_paste && (curbuf->b_p_cin
- # ifdef FEAT_EVAL
- || *curbuf->b_p_inde != NUL
- # endif
- ));
- }
- #endif
-
- #if defined(FEAT_LISP) || defined(FEAT_CINDENT) || defined(PROTO)
- /*
- * Re-indent the current line, based on the current contents of it and the
- * surrounding lines. Fixing the cursor position seems really easy -- I'm very
- * confused what all the part that handles Control-T is doing that I'm not.
- * "get_the_indent" should be get_c_indent, get_expr_indent or get_lisp_indent.
- */
-
- void
- fixthisline(get_the_indent)
- int (*get_the_indent) __ARGS((void));
- {
- change_indent(INDENT_SET, get_the_indent(), FALSE, 0);
- if (linewhite(curwin->w_cursor.lnum))
- did_ai = TRUE; /* delete the indent if the line stays empty */
- }
-
- void
- fix_indent()
- {
- if (p_paste)
- return;
- # ifdef FEAT_LISP
- if (curbuf->b_p_lisp && curbuf->b_p_ai)
- fixthisline(get_lisp_indent);
- # endif
- # if defined(FEAT_LISP) && defined(FEAT_CINDENT)
- else
- # endif
- # ifdef FEAT_CINDENT
- if (cindent_on())
- do_c_expr_indent();
- # endif
- }
-
- #endif
-
- #ifdef FEAT_CINDENT
- /*
- * return TRUE if 'cinkeys' contains the key "keytyped",
- * when == '*': Only if key is preceded with '*' (indent before insert)
- * when == '!': Only if key is prededed with '!' (don't insert)
- * when == ' ': Only if key is not preceded with '*'(indent afterwards)
- *
- * "keytyped" can have a few special values:
- * KEY_OPEN_FORW
- * KEY_OPEN_BACK
- * KEY_COMPLETE just finished completion.
- *
- * If line_is_empty is TRUE accept keys with '0' before them.
- */
- int
- in_cinkeys(keytyped, when, line_is_empty)
- int keytyped;
- int when;
- int line_is_empty;
- {
- char_u *look;
- int try_match;
- int try_match_word;
- char_u *p;
- char_u *line;
- int icase;
- int i;
-
- #ifdef FEAT_EVAL
- if (*curbuf->b_p_inde != NUL)
- look = curbuf->b_p_indk; /* 'indentexpr' set: use 'indentkeys' */
- else
- #endif
- look = curbuf->b_p_cink; /* 'indentexpr' empty: use 'cinkeys' */
- while (*look)
- {
- /*
- * Find out if we want to try a match with this key, depending on
- * 'when' and a '*' or '!' before the key.
- */
- switch (when)
- {
- case '*': try_match = (*look == '*'); break;
- case '!': try_match = (*look == '!'); break;
- default: try_match = (*look != '*'); break;
- }
- if (*look == '*' || *look == '!')
- ++look;
-
- /*
- * If there is a '0', only accept a match if the line is empty.
- * But may still match when typing last char of a word.
- */
- if (*look == '0')
- {
- try_match_word = try_match;
- if (!line_is_empty)
- try_match = FALSE;
- ++look;
- }
- else
- try_match_word = FALSE;
-
- /*
- * does it look like a control character?
- */
- if (*look == '^'
- #ifdef EBCDIC
- && (Ctrl_chr(look[1]) != 0)
- #else
- && look[1] >= '?' && look[1] <= '_'
- #endif
- )
- {
- if (try_match && keytyped == Ctrl_chr(look[1]))
- return TRUE;
- look += 2;
- }
- /*
- * 'o' means "o" command, open forward.
- * 'O' means "O" command, open backward.
- */
- else if (*look == 'o')
- {
- if (try_match && keytyped == KEY_OPEN_FORW)
- return TRUE;
- ++look;
- }
- else if (*look == 'O')
- {
- if (try_match && keytyped == KEY_OPEN_BACK)
- return TRUE;
- ++look;
- }
-
- /*
- * 'e' means to check for "else" at start of line and just before the
- * cursor.
- */
- else if (*look == 'e')
- {
- if (try_match && keytyped == 'e' && curwin->w_cursor.col >= 4)
- {
- p = ml_get_curline();
- if (skipwhite(p) == p + curwin->w_cursor.col - 4 &&
- STRNCMP(p + curwin->w_cursor.col - 4, "else", 4) == 0)
- return TRUE;
- }
- ++look;
- }
-
- /*
- * ':' only causes an indent if it is at the end of a label or case
- * statement, or when it was before typing the ':' (to fix
- * class::method for C++).
- */
- else if (*look == ':')
- {
- if (try_match && keytyped == ':')
- {
- p = ml_get_curline();
- if (cin_iscase(p) || cin_isscopedecl(p) || cin_islabel(30))
- return TRUE;
- if (curwin->w_cursor.col > 2
- && p[curwin->w_cursor.col - 1] == ':'
- && p[curwin->w_cursor.col - 2] == ':')
- {
- p[curwin->w_cursor.col - 1] = ' ';
- i = (cin_iscase(p) || cin_isscopedecl(p)
- || cin_islabel(30));
- p = ml_get_curline();
- p[curwin->w_cursor.col - 1] = ':';
- if (i)
- return TRUE;
- }
- }
- ++look;
- }
-
-
- /*
- * Is it a key in <>, maybe?
- */
- else if (*look == '<')
- {
- if (try_match)
- {
- /*
- * make up some named keys <o>, <O>, <e>, <0>, <>>, <<>, <*>,
- * <:> and <!> so that people can re-indent on o, O, e, 0, <,
- * >, *, : and ! keys if they really really want to.
- */
- if (vim_strchr((char_u *)"<>!*oOe0:", look[1]) != NULL
- && keytyped == look[1])
- return TRUE;
-
- if (keytyped == get_special_key_code(look + 1))
- return TRUE;
- }
- while (*look && *look != '>')
- look++;
- while (*look == '>')
- look++;
- }
-
- /*
- * Is it a word: "=word"?
- */
- else if (*look == '=' && look[1] != ',' && look[1] != NUL)
- {
- ++look;
- if (*look == '~')
- {
- icase = TRUE;
- ++look;
- }
- else
- icase = FALSE;
- p = vim_strchr(look, ',');
- if (p == NULL)
- p = look + STRLEN(look);
- if ((try_match || try_match_word)
- && curwin->w_cursor.col >= (colnr_T)(p - look))
- {
- int match = FALSE;
-
- #ifdef FEAT_INS_EXPAND
- if (keytyped == KEY_COMPLETE)
- {
- char_u *s;
-
- /* Just completed a word, check if it starts with "look".
- * search back for the start of a word. */
- line = ml_get_curline();
- # ifdef FEAT_MBYTE
- if (has_mbyte)
- {
- char_u *n;
-
- for (s = line + curwin->w_cursor.col; s > line; s = n)
- {
- n = mb_prevptr(line, s);
- if (!vim_iswordp(n))
- break;
- }
- }
- else
- # endif
- for (s = line + curwin->w_cursor.col; s > line; --s)
- if (!vim_iswordc(s[-1]))
- break;
- if (s + (p - look) <= line + curwin->w_cursor.col
- && (icase
- ? MB_STRNICMP(s, look, p - look)
- : STRNCMP(s, look, p - look)) == 0)
- match = TRUE;
- }
- else
- #endif
- /* TODO: multi-byte */
- if (keytyped == (int)p[-1])
- {
- line = ml_get_cursor();
- if ((curwin->w_cursor.col == (colnr_T)(p - look)
- || !vim_iswordc(line[-(p - look) - 1]))
- && (icase
- ? MB_STRNICMP(line - (p - look), look, p - look)
- : STRNCMP(line - (p - look), look, p - look))
- == 0)
- match = TRUE;
- }
- if (match && try_match_word && !try_match)
- {
- /* "0=word": Check if there are only blanks before the
- * word. */
- line = ml_get_curline();
- if ((int)(skipwhite(line) - line) !=
- (int)(curwin->w_cursor.col - (p - look)))
- match = FALSE;
- }
- if (match)
- return TRUE;
- }
- look = p;
- }
-
- /*
- * ok, it's a boring generic character.
- */
- else
- {
- if (try_match && *look == keytyped)
- return TRUE;
- ++look;
- }
-
- /*
- * Skip over ", ".
- */
- look = skip_to_option_part(look);
- }
- return FALSE;
- }
- #endif /* FEAT_CINDENT */
-
- #if defined(FEAT_RIGHTLEFT) || defined(PROTO)
- /*
- * Map Hebrew keyboard when in hkmap mode.
- */
- int
- hkmap(c)
- 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()
- {
- int need_redraw = FALSE;
- int regname;
- int literally = 0;
-
- /*
- * If we are going to wait for a character, show a '"'.
- */
- if (redrawing() && !char_avail())
- {
- /* may need to redraw when no more chars available now */
- ins_redraw();
-
- 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 = safe_vgetc();
- #ifdef FEAT_LANGMAP
- LANGMAP_ADJUST(regname, TRUE);
- #endif
- 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 = safe_vgetc();
- #ifdef FEAT_LANGMAP
- LANGMAP_ADJUST(regname, TRUE);
- #endif
- }
- --no_mapping;
-
- #ifdef FEAT_EVAL
- /*
- * Don't call u_sync() while getting the expression,
- * evaluating it or giving an error message for it!
- */
- ++no_u_sync;
- if (regname == '=')
- {
- #ifdef USE_IM_CONTROL
- int im_on = im_get_status();
- #endif
- regname = get_expr_register();
- #ifdef USE_IM_CONTROL
- /* Restore the Input Method. */
- if (im_on)
- im_set_active(TRUE);
- #endif
- }
- if (regname == NUL)
- 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();
- need_redraw = TRUE; /* remove the '"' */
- }
- #ifdef FEAT_EVAL
- }
- --no_u_sync;
- #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();
- }
-
- /*
- * CTRL-G commands in Insert mode.
- */
- static void
- ins_ctrl_g()
- {
- int c;
-
- /*
- * Don't map the register name. This also prevents the mode message to be
- * deleted when ESC is hit.
- */
- ++no_mapping;
- c = safe_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;
-
- /* Unknown CTRL-G command, reserved for future expansion. */
- default: vim_beep();
- }
- }
-
- /*
- * Handle ESC in insert mode.
- * Returns TRUE when leaving insert mode, FALSE when going to repeat the
- * insert.
- */
- static int
- ins_esc(count, cmdchar)
- long *count;
- int cmdchar;
- {
- int temp;
- static int disabled_redraw = FALSE;
-
- #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
- #if defined(FEAT_MBYTE) && defined(MACOS)
- previous_script = GetScriptManagerVariable(smKeyScript);
- KeyScript(smKeyRoman); /* or smKeySysScript */
- #endif
-
- temp = curwin->w_cursor.col;
- if (disabled_redraw)
- {
- --RedrawingDisabled;
- disabled_redraw = FALSE;
- }
- if (!arrow_used)
- {
- /*
- * Don't append the ESC for "r<CR>".
- */
- if (cmdchar != 'r' && cmdchar != 'v')
- AppendToRedobuff(ESC_STR);
-
- /*
- * Repeating insert may take a long time. Check for
- * interrupt now and then.
- */
- if (*count)
- {
- line_breakcheck();
- if (got_int)
- *count = 0;
- }
-
- if (--*count > 0) /* repeat what was typed */
- {
- (void)start_redo_ins();
- ++RedrawingDisabled;
- disabled_redraw = TRUE;
- return FALSE; /* repeat the insert */
- }
- stop_insert(&curwin->w_cursor);
- 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. */
- curbuf->b_last_insert = curwin->w_cursor;
-
- /*
- * The cursor should end up on the last inserted character.
- */
- if ((curwin->w_cursor.col != 0
- #ifdef FEAT_VIRTUALEDIT
- || curwin->w_cursor.coladd > 0
- #endif
- ) && (restart_edit == NUL
- || (gchar_cursor() == NUL
- #ifdef FEAT_VISUAL
- && !VIsual_active
- #endif
- ))
- #ifdef FEAT_RIGHTLEFT
- && !revins_on
- #endif
- )
- {
- #ifdef FEAT_VIRTUALEDIT
- if (curwin->w_cursor.coladd > 0 || ve_flags == VE_ALL)
- oneleft();
- else
- #endif
- --curwin->w_cursor.col;
- }
-
- 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
-
- #ifdef USE_IM_CONTROL
- /* Disable IM to allow typing English directly for Normal mode commands. */
- im_save_status(&curbuf->b_p_iminsert);
- im_set_active(FALSE);
- #endif
-
- /*
- * When recording or for CTRL-O, need to display the new mode.
- * Otherwise remove the mode message.
- */
- if (Recording || restart_edit != NUL)
- showmode();
- else if (p_smd)
- 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_()
- {
- 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;
- #ifdef FEAT_FKMAP
- if (p_altkeymap)
- {
- /*
- * to be consistent also for redo command, using '.'
- * set arrow_used to true and stop it - causing to redo
- * characters entered in one mode (normal/reverse insert).
- */
- arrow_used = TRUE;
- (void)stop_arrow();
- p_fkmap = curwin->w_p_rl ^ p_ri;
- if (p_fkmap && p_ri)
- State = INSERT;
- }
- else
- #endif
- p_hkmap = curwin->w_p_rl ^ p_ri; /* be consistent! */
- showmode();
- }
- #endif
-
- #ifdef FEAT_VISUAL
- /*
- * If 'keymodel' contains "startsel", may start selection.
- * Returns TRUE when a CTRL-O and other keys stuffed.
- */
- static int
- ins_start_select(c)
- int c;
- {
- if (km_startsel)
- switch (c)
- {
- case K_KHOME:
- case K_XHOME:
- case K_KEND:
- case K_XEND:
- case K_PAGEUP:
- case K_KPAGEUP:
- case K_PAGEDOWN:
- case K_KPAGEDOWN:
- # ifdef MACOS
- 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, unless it's
- * shift-left and beyond the end of the line (the CTRL-O
- * will move the cursor left already). */
- stuffcharReadbuff(Ctrl_O);
- if (c != K_S_LEFT || gchar_cursor() != NUL)
- {
- 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;
- }
- #endif
-
- /*
- * 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 'shiftwith', this is compatible
- * with vi. But vi only supports ^T and ^D after an
- * autoindent, we support it everywhere.
- */
- static void
- ins_shift(c, lastc)
- int c;
- int lastc;
- {
- if (stop_arrow() == FAIL)
- return;
- AppendCharToRedobuff(c);
-
- /*
- * 0^D and ^^D: remove all indent.
- */
- if ((lastc == '0' || lastc == '^') && curwin->w_cursor.col)
- {
- --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);
- }
- else
- change_indent(c == Ctrl_D ? INDENT_DEC : INDENT_INC, 0, TRUE, 0);
-
- 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()
- {
- 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 */
- || u_save((linenr_T)(curwin->w_cursor.lnum - 1),
- (linenr_T)(curwin->w_cursor.lnum + 2)) == FAIL
- || do_join(FALSE) == FAIL)
- vim_beep();
- else
- curwin->w_cursor.col = temp;
- }
- else if (del_char(FALSE) == FAIL) /* delete char under cursor */
- vim_beep();
- did_ai = FALSE;
- #ifdef FEAT_SMARTINDENT
- did_si = FALSE;
- can_si = FALSE;
- can_si_back = FALSE;
- #endif
- AppendCharToRedobuff(K_DEL);
- }
-
- /*
- * Handle Backspace, delete-word and delete-line in Insert mode.
- * Return TRUE when backspace was actually used.
- */
- static int
- ins_bs(c, mode, inserted_space_p)
- int c;
- int mode;
- int *inserted_space_p;
- {
- linenr_T lnum;
- int cc;
- int temp = 0; /* init for GCC */
- colnr_T mincol;
- int did_backspace = FALSE;
- int in_indent;
- int oldState;
- #ifdef FEAT_MBYTE
- int p1, p2;
- #endif
-
- /*
- * 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.lnum
- && curwin->w_cursor.col <= Insstart.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();
- 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
-
- #ifdef FEAT_VIRTUALEDIT
- /* 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;
- }
- #endif
-
- /*
- * delete newline!
- */
- if (curwin->w_cursor.col == 0)
- {
- lnum = Insstart.lnum;
- if (curwin->w_cursor.lnum == Insstart.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 = MAXCOL;
- }
- /*
- * 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
- {
- #ifdef FEAT_VREPLACE
- if (!(State & VREPLACE_FLAG)
- || curwin->w_cursor.lnum > orig_line_count)
- #endif
- {
- temp = gchar_cursor(); /* remember current char */
- --curwin->w_cursor.lnum;
- (void)do_join(FALSE);
- if (temp == NUL && gchar_cursor() != NUL)
- inc_cursor();
- }
- #ifdef FEAT_VREPLACE
- else
- dec_cursor();
- #endif
-
- /*
- * 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)
- {
- temp = curwin->w_cursor.col;
- #ifdef FEAT_MBYTE
- mb_replace_pop_ins(cc);
- #else
- ins_char(cc);
- #endif
- curwin->w_cursor.col = temp;
- 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_RIGHTLEFT
- && !revins_on
- #endif
- )
- {
- temp = curwin->w_cursor.col;
- beginline(BL_WHITE);
- if (curwin->w_cursor.col < (colnr_T)temp)
- mincol = curwin->w_cursor.col;
- curwin->w_cursor.col = temp;
- }
-
- /*
- * Handle deleting one 'shiftwidth' or 'softtabstop'.
- */
- if ( mode == BACKSPACE_CHAR
- && ((p_sta && in_indent)
- || (curbuf->b_p_sts
- && (*(ml_get_cursor() - 1) == TAB
- || (*(ml_get_cursor() - 1) == ' '
- && (!*inserted_space_p
- || arrow_used))))))
- {
- int ts;
- colnr_T vcol;
- colnr_T want_vcol;
- int extra = 0;
-
- *inserted_space_p = FALSE;
- if (p_sta)
- ts = curbuf->b_p_sw;
- else
- ts = curbuf->b_p_sts;
- /* 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);
- dec_cursor();
- getvcol(curwin, &curwin->w_cursor, NULL, NULL, &want_vcol);
- inc_cursor();
- want_vcol = (want_vcol / ts) * ts;
-
- /* delete characters until we are at or before want_vcol */
- while ((int)vcol > want_vcol
- && (cc = *(ml_get_cursor() - 1), vim_iswhite(cc)))
- {
- dec_cursor();
- getvcol(curwin, &curwin->w_cursor, &vcol, 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)
- {
- #if 0 /* what was this for? It causes problems when sw != ts. */
- if (State == REPLACE && (int)vcol < want_vcol)
- {
- (void)del_char(FALSE);
- extra = 2; /* don't pop too much */
- }
- else
- #endif
- replace_do_bs();
- }
- }
- else
- (void)del_char(FALSE);
- }
-
- /* insert extra spaces until we are at want_vcol */
- while ((int)vcol < want_vcol)
- {
- /* Remember the first char we inserted */
- if (curwin->w_cursor.lnum == Insstart.lnum
- && curwin->w_cursor.col < Insstart.col)
- Insstart.col = curwin->w_cursor.col;
-
- #ifdef FEAT_VREPLACE
- if (State & VREPLACE_FLAG)
- ins_char(' ');
- else
- #endif
- {
- ins_str((char_u *)" ");
- if ((State & REPLACE_FLAG) && extra <= 1)
- {
- if (extra)
- replace_push_off(NUL);
- else
- replace_push(NUL);
- }
- if (extra == 2)
- extra = 1;
- }
- getvcol(curwin, &curwin->w_cursor, &vcol, NULL, NULL);
- }
- }
-
- /*
- * Delete upto starting point, start of line or previous word.
- */
- else do
- {
- #ifdef FEAT_RIGHTLEFT
- if (!revins_on) /* put cursor on char to be deleted */
- #endif
- dec_cursor();
-
- /* start of word? */
- if (mode == BACKSPACE_WORD && !vim_isspace(gchar_cursor()))
- {
- mode = BACKSPACE_WORD_NOT_SPACE;
- temp = vim_iswordc(gchar_cursor());
- }
- /* end of word? */
- else if (mode == BACKSPACE_WORD_NOT_SPACE
- && (vim_isspace(cc = gchar_cursor())
- || vim_iswordc(cc) != temp))
- {
- #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();
- else
- {
- #ifdef FEAT_MBYTE
- if (enc_utf8 && p_deco)
- utfc_ptr2char(ml_get_cursor(), &p1, &p2);
- #endif
- (void)del_char(FALSE);
- #ifdef FEAT_MBYTE
- /*
- * If p1 or p2 is non-zero, there are combining characters we
- * need to take account of. Don't back up before the base
- * character.
- */
- if (enc_utf8 && p_deco && (p1 != NUL || p2 != NUL))
- inc_cursor();
- #endif
- #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.lnum
- || curwin->w_cursor.col != Insstart.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.lnum
- && curwin->w_cursor.col < Insstart.col)
- Insstart.col = curwin->w_cursor.col;
-
- return did_backspace;
- }
-
- #ifdef FEAT_MOUSE
- static void
- ins_mouse(c)
- int c;
- {
- pos_T tpos;
-
- # 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))
- {
- start_arrow(&tpos);
- # ifdef FEAT_CINDENT
- can_cindent = TRUE;
- # endif
- }
-
- #ifdef FEAT_WINDOWS
- /* redraw status lines (in case another window became active) */
- redraw_statuslines();
- #endif
- }
-
- static void
- ins_mousescroll(up)
- int up;
- {
- pos_T tpos;
-
- undisplay_dollar();
- tpos = curwin->w_cursor;
- if (mod_mask & MOD_MASK_SHIFT)
- scroll_redraw(up, (long)(curwin->w_botline - curwin->w_topline));
- else
- scroll_redraw(up, 3L);
- if (!equal(curwin->w_cursor, tpos))
- {
- start_arrow(&tpos);
- # ifdef FEAT_CINDENT
- can_cindent = TRUE;
- # endif
- }
- }
- #endif
-
- #ifdef FEAT_GUI
- void
- ins_scroll()
- {
- 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()
- {
- pos_T tpos;
-
- undisplay_dollar();
- tpos = curwin->w_cursor;
- if (gui_do_horiz_scroll())
- {
- start_arrow(&tpos);
- # ifdef FEAT_CINDENT
- can_cindent = TRUE;
- # endif
- }
- }
- #endif
-
- static void
- ins_left()
- {
- pos_T tpos;
-
- #ifdef FEAT_FOLDING
- if ((fdo_flags & FDO_HOR) && KeyTyped)
- foldOpenCursor();
- #endif
- undisplay_dollar();
- tpos = curwin->w_cursor;
- if (oneleft() == OK)
- {
- start_arrow(&tpos);
- #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)
- {
- 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();
- }
-
- static void
- ins_home(c)
- 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;
- #ifdef FEAT_VIRTUALEDIT
- curwin->w_cursor.coladd = 0;
- #endif
- curwin->w_curswant = 0;
- start_arrow(&tpos);
- }
-
- static void
- ins_end(c)
- 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()
- {
- #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(&curwin->w_cursor);
- (void)bck_word(1L, FALSE, FALSE);
- curwin->w_set_curswant = TRUE;
- }
- else
- vim_beep();
- }
-
- static void
- ins_right()
- {
- #ifdef FEAT_FOLDING
- if ((fdo_flags & FDO_HOR) && KeyTyped)
- foldOpenCursor();
- #endif
- undisplay_dollar();
- if (gchar_cursor() != NUL || virtual_active()
- )
- {
- start_arrow(&curwin->w_cursor);
- curwin->w_set_curswant = TRUE;
- #ifdef FEAT_VIRTUALEDIT
- if (virtual_active())
- oneright();
- else
- #endif
- {
- #ifdef FEAT_MBYTE
- if (has_mbyte)
- curwin->w_cursor.col += (*mb_ptr2len_check)(ml_get_cursor());
- else
- #endif
- ++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();
- }
-
- static void
- ins_s_right()
- {
- #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(&curwin->w_cursor);
- (void)fwd_word(1L, FALSE, 0);
- curwin->w_set_curswant = TRUE;
- }
- else
- vim_beep();
- }
-
- static void
- ins_up(startcol)
- 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();
- }
-
- static void
- ins_pageup()
- {
- pos_T tpos;
-
- undisplay_dollar();
- tpos = curwin->w_cursor;
- if (onepage(BACKWARD, 1L) == OK)
- {
- start_arrow(&tpos);
- #ifdef FEAT_CINDENT
- can_cindent = TRUE;
- #endif
- }
- else
- vim_beep();
- }
-
- static void
- ins_down(startcol)
- 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();
- }
-
- static void
- ins_pagedown()
- {
- pos_T tpos;
-
- undisplay_dollar();
- tpos = curwin->w_cursor;
- if (onepage(FORWARD, 1L) == OK)
- {
- start_arrow(&tpos);
- #ifdef FEAT_CINDENT
- can_cindent = TRUE;
- #endif
- }
- else
- vim_beep();
- }
-
- /*
- * Handle TAB in Insert or Replace mode.
- * Return TRUE when the TAB needs to be inserted like a normal character.
- */
- static int
- ins_tab()
- {
- 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
- && !(p_sta && ind && curbuf->b_p_ts != curbuf->b_p_sw)
- && curbuf->b_p_sts == 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");
-
- if (p_sta && ind) /* insert tab in indent, use 'shiftwidth' */
- temp = (int)curbuf->b_p_sw;
- else if (curbuf->b_p_sts > 0) /* use 'softtabstop' when set */
- temp = (int)curbuf->b_p_sts;
- else /* otherwise use 'tabstop' */
- temp = (int)curbuf->b_p_ts;
- temp -= get_nolist_virtcol() % temp;
-
- /*
- * 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)
- {
- #ifdef FEAT_VREPLACE
- if (State & VREPLACE_FLAG)
- ins_char(' ');
- else
- #endif
- {
- ins_str((char_u *)" ");
- if (State & REPLACE_FLAG) /* no char replaced */
- replace_push(NUL);
- }
- }
-
- /*
- * When 'expandtab' not set: Replace spaces by TABs where possible.
- */
- if (!curbuf->b_p_et && (curbuf->b_p_sts || (p_sta && ind)))
- {
- char_u *ptr;
- #ifdef FEAT_VREPLACE
- char_u *saved_line = NULL; /* init for GCC */
- pos_T pos;
- #endif
- pos_T fpos;
- pos_T *cursor;
- colnr_T want_vcol, vcol;
- int change_col = -1;
-
- /*
- * Get the current line. For VREPLACE mode, don't make real changes
- * yet, just work on a copy of the line.
- */
- #ifdef FEAT_VREPLACE
- 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
- #endif
- {
- ptr = ml_get_cursor();
- cursor = &curwin->w_cursor;
- }
-
- /* 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 'showbreak' and
- * 'linebreak' adding extra virtual columns. */
- while (vim_iswhite(*ptr))
- {
- i = lbr_chartabsize((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;
-
- /* Skip over the spaces we need. */
- while (vcol < want_vcol && *ptr == ' ')
- {
- vcol += lbr_chartabsize(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)
- {
- mch_memmove(ptr, ptr + i, STRLEN(ptr + i) + 1);
- /* correct replace stack. */
- if ((State & REPLACE_FLAG)
- #ifdef FEAT_VREPLACE
- && !(State & VREPLACE_FLAG)
- #endif
- )
- for (temp = i; --temp >= 0; )
- replace_join(repl_off);
- }
- cursor->col -= i;
-
- #ifdef FEAT_VREPLACE
- /*
- * 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);
- }
- #endif
- }
-
- #ifdef FEAT_VREPLACE
- if (State & VREPLACE_FLAG)
- vim_free(saved_line);
- #endif
- }
-
- return FALSE;
- }
-
- /*
- * Handle CR or NL in insert mode.
- * Return TRUE when out of memory or can't undo.
- */
- static int
- ins_eol(c)
- int c;
- {
- int i;
-
- if (echeck_abbr(c + ABBR_OFF))
- return FALSE;
- if (stop_arrow() == FAIL)
- return TRUE;
- 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)
- #ifdef FEAT_VREPLACE
- && !(State & VREPLACE_FLAG)
- #endif
- )
- 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().
- */
-
- #ifdef FEAT_RIGHTLEFT
- # ifdef FEAT_FKMAP
- if (p_altkeymap && p_fkmap)
- fkmap(NL);
- # endif
- /* 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
-
- 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()
- {
- int c;
- int cc;
-
- if (redrawing() && !char_avail())
- {
- /* may need to redraw when no more chars available now */
- ins_redraw();
-
- edit_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 = safe_vgetc();
- --no_mapping;
- --allow_keys;
- 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)
- {
- if (redrawing() && !char_avail())
- {
- /* may need to redraw when no more chars available now */
- ins_redraw();
-
- if (char2cells(c) == 1)
- edit_putchar(c, TRUE);
- #ifdef FEAT_CMDL_INFO
- add_to_showcmd_c(c);
- #endif
- }
- ++no_mapping;
- ++allow_keys;
- cc = safe_vgetc();
- --no_mapping;
- --allow_keys;
- if (cc != ESC)
- {
- AppendToRedobuff((char_u *)CTRL_V_STR);
- c = getdigraph(c, cc, TRUE);
- #ifdef FEAT_CMDL_INFO
- clear_showcmd();
- #endif
- return c;
- }
- }
- edit_unputchar();
- #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.
- */
- static int
- ins_copychar(lnum)
- linenr_T lnum;
- {
- int c;
- int temp;
- char_u *ptr, *prev_ptr;
-
- if (lnum < 1 || lnum > curbuf->b_ml.ml_line_count)
- {
- vim_beep();
- return NUL;
- }
-
- /* try to advance to the cursor column */
- temp = 0;
- 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(&ptr, (colnr_T)temp);
- }
- if ((colnr_T)temp > curwin->w_virtcol)
- ptr = prev_ptr;
-
- #ifdef FEAT_MBYTE
- c = (*mb_ptr2char)(ptr);
- #else
- c = *ptr;
- #endif
- if (c == NUL)
- vim_beep();
- return c;
- }
-
- #ifdef FEAT_SMARTINDENT
- /*
- * Try to do some very smart auto-indenting.
- * Used when inserting a "normal" character.
- */
- static void
- ins_try_si(c)
- 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;
- #ifdef FEAT_VREPLACE
- if (State & VREPLACE_FLAG)
- change_indent(INDENT_SET, i, FALSE, NUL);
- else
- #endif
- (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);
- }
- }
-
- /*
- * 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.
- */
- static colnr_T
- get_nolist_virtcol()
- {
- if (curwin->w_p_list && vim_strchr(p_cpo, CPO_LISTWM) == NULL)
- return getvcol_nolist(&curwin->w_cursor);
- validate_virtcol();
- return curwin->w_virtcol;
- }
-