/* vi:set ts=8 sts=4 sw=4 noet: * * VIM - Vi IMproved by Bram Moolenaar * * Do ":help uganda" in Vim to read copying and usage conditions. * Do ":help credits" in Vim to see a list of people who contributed. * See README.txt for an overview of the Vim source code. */ /* * edit.c: functions for Insert mode */ #include "vim.h" #define BACKSPACE_CHAR 1 #define BACKSPACE_WORD 2 #define BACKSPACE_WORD_NOT_SPACE 3 #define BACKSPACE_LINE 4 static void ins_ctrl_v(void); #ifdef FEAT_JOB_CHANNEL static void init_prompt(int cmdchar_todo); #endif static void undisplay_dollar(void); static void insert_special(int, int, int); static void internal_format(int textwidth, int second_indent, int flags, int format_only, int c); static void check_auto_format(int); static void redo_literal(int c); static void start_arrow_common(pos_T *end_insert_pos, int change); static void stop_insert(pos_T *end_insert_pos, int esc, int nomove); static int echeck_abbr(int); static void replace_join(int off); static void mb_replace_pop_ins(int cc); static void replace_flush(void); static void replace_do_bs(int limit_col); static int del_char_after_col(int limit_col); static void ins_ctrl_g(void); static void ins_ctrl_g_nonblocking(int c); static void ins_ctrl_hat(void); static int ins_esc(long *count, int cmdchar, int nomove); #ifdef FEAT_RIGHTLEFT static void ins_ctrl_(void); #endif static int ins_start_select(int c); static void ins_insert(int replaceState); static void ins_ctrl_o(void); static void ins_shift(int c, int lastc); static void ins_del(void); static int ins_bs(int c, int mode, int *inserted_space_p); static void ins_left(void); static void ins_home(int c); static void ins_end(int c); static void ins_s_left(void); static void ins_right(void); static void ins_s_right(void); static void ins_up(int startcol); static void ins_pageup(void); static void ins_down(int startcol); static void ins_pagedown(void); static int ins_tab(void); #ifdef FEAT_DIGRAPHS static int ins_digraph(void); #endif static int ins_ctrl_ey(int tc); #ifdef FEAT_SMARTINDENT static void ins_try_si(int c); #endif #if defined(FEAT_EVAL) static char_u *do_insert_char_pre(int c); #endif static colnr_T Insstart_textlen; /* length of line when insert started */ static colnr_T Insstart_blank_vcol; /* vcol for first inserted blank */ static int update_Insstart_orig = TRUE; /* set Insstart_orig to Insstart */ static char_u *last_insert = NULL; /* the text of the previous insert, K_SPECIAL and CSI are escaped */ static int last_insert_skip; /* nr of chars in front of previous insert */ static int new_insert_skip; /* nr of chars in front of current insert */ static int did_restart_edit; /* "restart_edit" when calling edit() */ static int old_indent = 0; /* for ^^D command in insert mode */ #ifdef FEAT_RIGHTLEFT static int revins_on; /* reverse insert mode on */ static int revins_chars; /* how much to skip after edit */ static int revins_legal; /* was the last char 'legal'? */ static int revins_scol; /* start column of revins session */ #endif static int ins_need_undo; /* call u_save() before inserting a char. Set when edit() is called. after that arrow_used is used. */ static int did_add_space = FALSE; // auto_format() added an extra space // under the cursor static int dont_sync_undo = FALSE; // CTRL-G U prevents syncing undo for // the next left/right cursor key typedef struct { int cmdchar; int startln; long count; int c; char_u *ptr; int lastc; int mincol; int i; int did_backspace; int line_is_white; linenr_T old_topline; int old_topfill; int inserted_space; int replaceState; int nomove; int cmdchar_todo; int is_ctrlv; /* If we are coming back from inserting a literal */ int ctrlv_ret; /* Return value from inserting a literal */ int is_ctrlg; /* If ctrl-g was pressed last */ } editState_T; static linenr_T o_lnum = 0; void *state_edit_initialize(int cmdchar, int startln, long count) { editState_T *context = (editState_T *)alloc(sizeof(editState_T)); context->cmdchar = cmdchar; context->startln = startln; context->count = count; context->c = 0; context->lastc = 0; context->old_topline = 0; context->old_topfill = -1; context->nomove = FALSE; context->is_ctrlv = FALSE; context->is_ctrlg = FALSE; context->ctrlv_ret = 0; /* Remember whether editing was restarted after CTRL-O. */ did_restart_edit = restart_edit; /* sleep before redrawing, needed for "CTRL-O :" that results in an * error message */ check_for_delay(TRUE); /* set Insstart_orig to Insstart */ update_Insstart_orig = TRUE; #ifdef HAVE_SANDBOX /* Don't allow inserting in the sandbox. */ if (sandbox != 0) { emsg(_(e_sandbox)); return FALSE; } #endif /* Don't allow changes in the buffer while editing the cmdline. The * caller of getcmdline() may get confused. */ if (textlock != 0) { emsg(_(e_secure)); return FALSE; } /* * Trigger InsertEnter autocommands. Do not do this for "r" or "grx". */ if (context->cmdchar != 'r' && context->cmdchar != 'v') { pos_T save_cursor = curwin->w_cursor; #ifdef FEAT_EVAL if (context->cmdchar == 'R') context->ptr = (char_u *)"r"; else if (context->cmdchar == 'V') context->ptr = (char_u *)"v"; else context->ptr = (char_u *)"i"; set_vim_var_string(VV_INSERTMODE, context->ptr, 1); set_vim_var_string(VV_CHAR, NULL, -1); /* clear v:char */ #endif ins_apply_autocmds(EVENT_INSERTENTER); /* Make sure the cursor didn't move. Do call check_cursor_col() in * case the text was modified. Since Insert mode was not started yet * a call to check_cursor_col() may move the cursor, especially with * the "A" command, thus set State to avoid that. Also check that the * line number is still valid (lines may have been deleted). * Do not restore if v:char was set to a non-empty string. */ if (!EQUAL_POS(curwin->w_cursor, save_cursor) #ifdef FEAT_EVAL && *get_vim_var_str(VV_CHAR) == NUL #endif && save_cursor.lnum <= curbuf->b_ml.ml_line_count) { int save_state = State; curwin->w_cursor = save_cursor; State = INSERT; check_cursor_col(); State = save_state; } } { Insstart = curwin->w_cursor; if (context->startln) Insstart.col = 0; } Insstart_textlen = (colnr_T)linetabsize(ml_get_curline()); Insstart_blank_vcol = MAXCOL; if (!did_ai) ai_col = 0; if (context->cmdchar != NUL && restart_edit == 0) { ResetRedobuff(); AppendNumberToRedobuff(count); if (context->cmdchar == 'V' || context->cmdchar == 'v') { /* "gR" or "gr" command */ AppendCharToRedobuff('g'); AppendCharToRedobuff((cmdchar == 'v') ? 'r' : 'R'); } else { if (context->cmdchar == K_PS) AppendCharToRedobuff('a'); else AppendCharToRedobuff(context->cmdchar); if (context->cmdchar == 'g') /* "gI" command */ AppendCharToRedobuff('I'); else if (context->cmdchar == 'r') /* "r" command */ context->count = 1; /* insert only one */ } } if (context->cmdchar == 'R') { State = REPLACE; } else if (context->cmdchar == 'V' || context->cmdchar == 'v') { State = VREPLACE; context->replaceState = VREPLACE; orig_line_count = curbuf->b_ml.ml_line_count; vr_lines_changed = 1; } else State = INSERT; stop_insert_mode = FALSE; /* * Need to recompute the cursor position, it might move when the cursor is * on a TAB or special character. */ curs_columns(TRUE); /* * Enable langmap or IME, indicated by 'iminsert'. * Note that IME may enabled/disabled without us noticing here, thus the * 'iminsert' value may not reflect what is actually used. It is updated * when hitting . */ if (curbuf->b_p_iminsert == B_IMODE_LMAP) State |= LANGMAP; #ifdef FEAT_RIGHTLEFT /* there is no reverse replace mode */ revins_on = (State == INSERT && p_ri); if (revins_on) undisplay_dollar(); revins_chars = 0; revins_legal = 0; revins_scol = -1; #endif if (!p_ek) /* Disable bracketed paste mode, we won't recognize the escape * sequences. */ out_str(T_BD); /* * Handle restarting Insert mode. * Don't do this for "CTRL-O ." (repeat an insert): In that case we get * here with something in the stuff buffer. */ if (restart_edit != 0 && stuff_empty()) { arrow_used = TRUE; restart_edit = 0; /* * If the cursor was after the end-of-line before the CTRL-O and it is * now at the end-of-line, put it after the end-of-line (this is not * correct in very rare cases). * Also do this if curswant is greater than the current virtual * column. Eg after "^O$" or "^O80|". */ validate_virtcol(); update_curswant(); if (((ins_at_eol && curwin->w_cursor.lnum == o_lnum) || curwin->w_curswant > curwin->w_virtcol) && *(context->ptr = ml_get_curline() + curwin->w_cursor.col) != NUL) { if (context->ptr[1] == NUL) ++curwin->w_cursor.col; else if (has_mbyte) { context->i = (*mb_ptr2len)(context->ptr); if (context->ptr[context->i] == NUL) curwin->w_cursor.col += context->i; } } ins_at_eol = FALSE; } else arrow_used = FALSE; /* we are in insert mode now, don't need to start it anymore */ need_start_insertmode = FALSE; /* Need to save the line for undo before inserting the first char. */ ins_need_undo = TRUE; #ifdef FEAT_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. */ context->i = 0; if (!p_im && did_restart_edit == 0) change_warning(context->i == 0 ? 0 : context->i + 1); #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. */ context->ptr = get_inserted(); if (context->ptr == NULL) new_insert_skip = 0; else { new_insert_skip = (int)STRLEN(context->ptr); vim_free(context->ptr); } old_indent = 0; return (void *)context; } void state_edit_cleanup(void *ctx) { editState_T *context = (editState_T *)ctx; vim_free(context); } executionStatus_T state_edit_execute(void *ctx, int c) { editState_T *context = (editState_T *)ctx; /* If we are coming back ctrl-v, handle that */ if (context->is_ctrlv) { insert_special(context->ctrlv_ret, FALSE, TRUE); #ifdef FEAT_RIGHTLEFT revins_chars++; revins_legal++; #endif context->is_ctrlv = FALSE; return HANDLED; } if (context->is_ctrlg) { ins_ctrl_g_nonblocking(c); context->is_ctrlg = FALSE; return HANDLED; } #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 */ context->count = 0; if (update_Insstart_orig) Insstart_orig = Insstart; if (stop_insert_mode) { /* ":stopinsert" used or 'insertmode' reset */ context->count = 0; goto doESCkey; } /* set curwin->w_curswant for next K_DOWN or K_UP */ if (!arrow_used) curwin->w_set_curswant = TRUE; /* If there is no typeahead may check for timestamps (e.g., for when a * menu invoked a shell command). */ if (stuff_empty()) { did_check_timestamps = FALSE; if (need_check_timestamps) check_timestamps(FALSE); } /* * When emsg() was called msg_scroll will have been set. */ msg_scroll = FALSE; #ifdef FEAT_FOLDING /* Open fold at the cursor line, according to 'foldopen'. */ if (fdo_flags & FDO_INSERT) foldOpenCursor(); /* Close folds where the cursor isn't, according to 'foldclose' */ if (!char_avail()) foldCheckClose(); #endif #ifdef FEAT_JOB_CHANNEL if (bt_prompt(curbuf)) { init_prompt(context->cmdchar_todo); context->cmdchar_todo = NUL; } #endif context->did_backspace = FALSE; validate_cursor(); /* may set must_redraw */ if (curwin->w_p_scb) do_check_scrollbind(TRUE); if (curwin->w_p_crb) do_check_cursorbind(); update_curswant(); context->old_topline = curwin->w_topline; #ifdef FEAT_DIFF context->old_topfill = curwin->w_topfill; #endif /* * Get a character for Insert mode. Ignore K_IGNORE and K_NOP. */ if (c != K_CURSORHOLD) context->lastc = c; /* remember the previous char for CTRL-D */ /* After using CTRL-G U the next cursor key will not break undo. */ if (dont_sync_undo == MAYBE) dont_sync_undo = TRUE; else dont_sync_undo = FALSE; if (context->cmdchar == K_PS) /* Got here from normal mode when bracketed paste started. */ c = K_PS; /* else */ /* TODO: Is this needed? Where do K_IGNORE and K_NOP come from ?*/ /* do */ /* { */ /* c = safe_vgetc(); */ /* if (stop_insert_mode) */ /* { */ /* // Insert mode ended, possibly from a callback. */ /* count = 0; */ /* nomove = TRUE; */ /* goto doESCkey; */ /* } */ /* } while (c == K_IGNORE || c == K_NOP); */ /* Don't want K_CURSORHOLD for the second key, e.g., after CTRL-V. */ did_cursorhold = TRUE; #ifdef FEAT_RIGHTLEFT if (p_hkmap && KeyTyped) c = hkmap(c); /* Hebrew mode mapping */ #endif /* CTRL-\ CTRL-N goes to Normal mode, * CTRL-\ CTRL-G goes to mode selected with 'insertmode', * CTRL-\ CTRL-O is like CTRL-O but without moving the cursor. */ /* TODO: Bring back this logic */ /* if (c == Ctrl_BSL) */ /* { */ /* /1* may need to redraw when no more chars available now *1/ */ /* ins_redraw(FALSE); */ /* ++no_mapping; */ /* ++allow_keys; */ /* c = plain_vgetc(); */ /* --no_mapping; */ /* --allow_keys; */ /* if (c != Ctrl_N && c != Ctrl_G && c != Ctrl_O) */ /* { */ /* /1* it's something else *1/ */ /* vungetc(c); */ /* c = Ctrl_BSL; */ /* } */ /* else if (c == Ctrl_G && p_im) */ /* continue; */ /* else */ /* { */ /* if (c == Ctrl_O) */ /* { */ /* ins_ctrl_o(); */ /* ins_at_eol = FALSE; /1* cursor keeps its column *1/ */ /* nomove = TRUE; */ /* } */ /* count = 0; */ /* goto doESCkey; */ /* } */ /* } */ #ifdef FEAT_DIGRAPHS c = do_digraph(c); #endif if (c == Ctrl_V || c == Ctrl_Q) { context->is_ctrlv = TRUE; context->c = Ctrl_V; /* pretend CTRL-V is last typed character */ sm_push_insert_literal(&context->ctrlv_ret); return HANDLED; } #ifdef FEAT_RIGHTLEFT if (curwin->w_p_rl) switch (c) { case K_LEFT: c = K_RIGHT; break; case K_S_LEFT: c = K_S_RIGHT; break; case K_C_LEFT: c = K_C_RIGHT; break; case K_RIGHT: c = K_LEFT; break; case K_S_RIGHT: c = K_S_LEFT; break; case K_C_RIGHT: c = K_C_LEFT; break; } #endif /* * If 'keymodel' contains "startsel", may start selection. If it * does, a CTRL-O and c will be stuffed, we need to get these * characters. */ if (ins_start_select(c)) return HANDLED; /* * The big switch to handle a character in insert mode. */ switch (c) { case ESC: /* End input mode */ if (echeck_abbr(ESC + ABBR_OFF)) break; /* FALLTHROUGH */ case Ctrl_C: /* End input mode */ #ifdef FEAT_JOB_CHANNEL if (c == Ctrl_C && bt_prompt(curbuf)) { if (invoke_prompt_interrupt()) { if (!bt_prompt(curbuf)) // buffer changed to a non-prompt buffer, get out of // Insert mode goto doESCkey; break; } } #endif #ifdef UNIX /* Suppress unused-label error */ goto do_intr; do_intr: #endif /* when 'insertmode' set, and not halfway a mapping, don't leave * Insert mode */ /* TODO: What is this used for? */ /* if (goto_im()) */ /* { */ /* if (got_int) */ /* { */ /* (void)vgetc(); /1* flush all buffers *1/ */ /* got_int = FALSE; */ /* } */ /* else */ /* vim_beep(BO_IM); */ /* break; */ /* } */ doESCkey: /* * This is the ONLY return from edit()! */ /* Always update o_lnum, so that a "CTRL-O ." that adds a line * still puts the cursor back after the inserted text. */ if (ins_at_eol && gchar_cursor() == NUL) o_lnum = curwin->w_cursor.lnum; if (ins_esc(&context->count, context->cmdchar, context->nomove)) { // When CTRL-C was typed got_int will be set, with the result // that the autocommands won't be executed. When mapped got_int // is not set, but let's keep the behavior the same. if (context->cmdchar != 'r' && context->cmdchar != 'v' && c != Ctrl_C) ins_apply_autocmds(EVENT_INSERTLEAVE); did_cursorhold = FALSE; return COMPLETED; /* TODO: Handle Ctrl_O */ /* return (c == Ctrl_O); */ } else { return HANDLED; } case Ctrl_Z: /* suspend when 'insertmode' set */ if (!p_im) goto normalchar; /* insert CTRL-Z as normal char */ do_cmdline_cmd((char_u *)"stop"); return HANDLED; case Ctrl_O: /* execute one command */ if (echeck_abbr(Ctrl_O + ABBR_OFF)) break; ins_ctrl_o(); /* don't move the cursor left when 'virtualedit' has "onemore". */ if (ve_flags & VE_ONEMORE) { ins_at_eol = FALSE; context->nomove = TRUE; } context->count = 0; goto doESCkey; case K_INS: /* toggle insert/replace mode */ case K_KINS: ins_insert(context->replaceState); break; case K_SELECT: /* end of Select mode mapping - ignore */ break; case K_HELP: /* Help key works like */ case K_F1: case K_XF1: stuffcharReadbuff(K_HELP); if (p_im) need_start_insertmode = TRUE; goto doESCkey; case K_ZERO: /* Insert the previously inserted text. */ case NUL: case Ctrl_A: /* For ^@ the trailing ESC will end the insert, unless there is an * error. */ if (stuff_inserted(NUL, 1L, (c == Ctrl_A)) == FAIL && c != Ctrl_A && !p_im) goto doESCkey; /* quit insert mode */ context->inserted_space = FALSE; break; case Ctrl_G: /* commands starting with CTRL-G */ // Mark as in 'ctrlg' mode, handle next key context->is_ctrlg = TRUE; break; case Ctrl_HAT: /* switch input mode and/or langmap */ ins_ctrl_hat(); break; #ifdef FEAT_RIGHTLEFT case Ctrl__: /* switch between languages */ if (!p_ari) goto normalchar; ins_ctrl_(); break; #endif case Ctrl_D: /* Make indent one shiftwidth smaller. */ /* FALLTHROUGH */ case Ctrl_T: /* Make indent one shiftwidth greater. */ ins_shift(c, context->lastc); auto_format(FALSE, TRUE); context->inserted_space = FALSE; break; case K_DEL: /* delete character under the cursor */ case K_KDEL: ins_del(); auto_format(FALSE, TRUE); break; case K_BS: /* delete character before the cursor */ case Ctrl_H: context->did_backspace = ins_bs(c, BACKSPACE_CHAR, &context->inserted_space); auto_format(FALSE, TRUE); break; case Ctrl_W: /* delete word before the cursor */ #ifdef FEAT_JOB_CHANNEL if (bt_prompt(curbuf) && (mod_mask & MOD_MASK_SHIFT) == 0) { // In a prompt window CTRL-W is used for window commands. // Use Shift-CTRL-W to delete a word. stuffcharReadbuff(Ctrl_W); restart_edit = 'A'; context->nomove = TRUE; context->count = 0; goto doESCkey; } #endif context->did_backspace = ins_bs(c, BACKSPACE_WORD, &context->inserted_space); auto_format(FALSE, TRUE); break; case Ctrl_U: /* delete all inserted text in current line */ context->did_backspace = ins_bs(c, BACKSPACE_LINE, &context->inserted_space); auto_format(FALSE, TRUE); context->inserted_space = FALSE; break; case K_PS: bracketed_paste(PASTE_INSERT, FALSE, NULL); if (context->cmdchar == K_PS) /* invoked from normal mode, bail out */ goto doESCkey; break; case K_PE: /* Got K_PE without K_PS, ignore. */ break; case K_IGNORE: /* Something mapped to nothing */ break; case K_CURSORHOLD: /* Didn't type something for a while. */ ins_apply_autocmds(EVENT_CURSORHOLDI); did_cursorhold = TRUE; break; case K_HOME: /* */ case K_KHOME: case K_S_HOME: case K_C_HOME: ins_home(c); break; case K_END: /* */ case K_KEND: case K_S_END: case K_C_END: ins_end(c); break; case K_LEFT: /* */ if (mod_mask & (MOD_MASK_SHIFT | MOD_MASK_CTRL)) ins_s_left(); else ins_left(); break; case K_S_LEFT: /* */ case K_C_LEFT: ins_s_left(); break; case K_RIGHT: /* */ if (mod_mask & (MOD_MASK_SHIFT | MOD_MASK_CTRL)) ins_s_right(); else ins_right(); break; case K_S_RIGHT: /* */ case K_C_RIGHT: ins_s_right(); break; case K_UP: /* */ if (mod_mask & MOD_MASK_SHIFT) ins_pageup(); else ins_up(FALSE); break; case K_S_UP: /* */ case K_PAGEUP: case K_KPAGEUP: ins_pageup(); break; case K_DOWN: /* */ if (mod_mask & MOD_MASK_SHIFT) ins_pagedown(); else ins_down(FALSE); break; case K_S_DOWN: /* */ case K_PAGEDOWN: case K_KPAGEDOWN: ins_pagedown(); break; case K_S_TAB: /* When not mapped, use like a normal TAB */ c = TAB; /* FALLTHROUGH */ case TAB: /* TAB or Complete patterns along path */ context->inserted_space = FALSE; if (ins_tab()) goto normalchar; /* insert TAB as a normal char */ auto_format(FALSE, TRUE); break; case K_KENTER: /* */ c = CAR; /* FALLTHROUGH */ case CAR: case NL: #if defined(FEAT_QUICKFIX) /* In a quickfix window a jumps to the error under the * cursor. */ if (bt_quickfix(curbuf) && c == CAR) { if (curwin->w_llist_ref == NULL) /* quickfix window */ do_cmdline_cmd((char_u *)".cc"); else /* location list window */ do_cmdline_cmd((char_u *)".ll"); break; } #endif #ifdef FEAT_JOB_CHANNEL if (bt_prompt(curbuf)) { invoke_prompt_callback(); if (!bt_prompt(curbuf)) // buffer changed to a non-prompt buffer, get out of // Insert mode goto doESCkey; break; } #endif if (ins_eol(c) == FAIL && !p_im) goto doESCkey; /* out of memory */ auto_format(FALSE, FALSE); context->inserted_space = FALSE; break; #if defined(FEAT_DIGRAPHS) case Ctrl_K: /* digraph or keyword completion */ c = ins_digraph(); if (c == NUL) break; goto normalchar; #endif case Ctrl_L: /* Whole line completion after ^X */ { /* CTRL-L with 'insertmode' set: Leave Insert mode */ if (p_im) { if (echeck_abbr(Ctrl_L + ABBR_OFF)) break; goto doESCkey; } goto normalchar; } case Ctrl_Y: /* copy from previous line or scroll down */ case Ctrl_E: /* copy from next line or scroll up */ c = ins_ctrl_ey(c); break; default: normalchar: /* * Insert a normal character. */ #if defined(FEAT_EVAL) if (!p_paste) { /* Trigger InsertCharPre. */ char_u *str = do_insert_char_pre(c); char_u *p; if (str != NULL) { if (*str != NUL && stop_arrow() != FAIL) { /* Insert the new value of v:char literally. */ for (p = str; *p != NUL; MB_PTR_ADV(p)) { c = PTR2CHAR(p); if (c == CAR || c == K_KENTER || c == NL) ins_eol(c); else ins_char(c); } AppendToRedobuffLit(str, -1); } vim_free(str); c = NUL; } /* If the new value is already inserted or an empty string * then don't insert any character. */ if (c == NUL) break; } #endif #ifdef FEAT_SMARTINDENT /* Try to perform smart-indenting. */ ins_try_si(c); #endif if (c == ' ') { context->inserted_space = TRUE; if (Insstart_blank_vcol == MAXCOL && curwin->w_cursor.lnum == Insstart.lnum) Insstart_blank_vcol = get_nolist_virtcol(); } /* Insert a normal character and check for abbreviations on a * special character. Let CTRL-] expand abbreviations without * inserting it. */ if (vim_iswordc(c) || (!echeck_abbr( // Add ABBR_OFF for characters above 0x100, this is // what check_abbr() expects. (has_mbyte && c >= 0x100) ? (c + ABBR_OFF) : c) && c != Ctrl_RSB)) { insert_special(c, FALSE, FALSE); #ifdef FEAT_RIGHTLEFT revins_legal++; revins_chars++; #endif } auto_format(FALSE, TRUE); #ifdef FEAT_FOLDING /* When inserting a character the cursor line must never be in a * closed fold. */ foldOpenCursor(); #endif break; } /* end of switch (c) */ /* If typed something may trigger CursorHoldI again. */ if (c != K_CURSORHOLD #ifdef FEAT_COMPL_FUNC /* but not in CTRL-X mode, a script can't restore the state */ && ctrl_x_mode_normal() #endif ) did_cursorhold = FALSE; /* If the cursor was moved we didn't just insert a space */ if (arrow_used) context->inserted_space = FALSE; return HANDLED; }; /* * edit(): Start inserting text. * * "cmdchar" can be: * 'i' normal insert command * 'a' normal append command * K_PS bracketed paste * 'R' replace command * 'r' "r" command: insert one . Note: count can be > 1, for redo, * but still only one is inserted. The is not used for redo. * 'g' "gI" command. * 'V' "gR" command for Virtual Replace mode. * 'v' "gr" command for single character Virtual Replace mode. * * This function is not called recursively. For CTRL-O commands, it returns * and lets the caller handle the Normal-mode command. * * Return TRUE if a CTRL-O command caused the return (insert mode pending). */ int edit(int cmdchar, int startln, /* if set, insert at start of line */ long count) { int c = 0; char_u *ptr; int lastc = 0; int mincol; int i; int did_backspace = TRUE; /* previous char was backspace */ linenr_T old_topline = 0; /* topline before insertion */ #ifdef FEAT_DIFF int old_topfill = -1; #endif int inserted_space = FALSE; /* just inserted a space */ int replaceState = REPLACE; int nomove = FALSE; /* don't move cursor on return */ #ifdef FEAT_JOB_CHANNEL int cmdchar_todo = cmdchar; #endif /* Remember whether editing was restarted after CTRL-O. */ did_restart_edit = restart_edit; /* sleep before redrawing, needed for "CTRL-O :" that results in an * error message */ check_for_delay(TRUE); /* set Insstart_orig to Insstart */ update_Insstart_orig = TRUE; #ifdef HAVE_SANDBOX /* Don't allow inserting in the sandbox. */ if (sandbox != 0) { emsg(_(e_sandbox)); return FALSE; } #endif /* Don't allow changes in the buffer while editing the cmdline. The * caller of getcmdline() may get confused. */ if (textlock != 0) { emsg(_(e_secure)); return FALSE; } /* * Trigger InsertEnter autocommands. Do not do this for "r" or "grx". */ if (cmdchar != 'r' && cmdchar != 'v') { pos_T save_cursor = curwin->w_cursor; #ifdef FEAT_EVAL if (cmdchar == 'R') ptr = (char_u *)"r"; else if (cmdchar == 'V') ptr = (char_u *)"v"; else ptr = (char_u *)"i"; set_vim_var_string(VV_INSERTMODE, ptr, 1); set_vim_var_string(VV_CHAR, NULL, -1); /* clear v:char */ #endif ins_apply_autocmds(EVENT_INSERTENTER); /* Make sure the cursor didn't move. Do call check_cursor_col() in * case the text was modified. Since Insert mode was not started yet * a call to check_cursor_col() may move the cursor, especially with * the "A" command, thus set State to avoid that. Also check that the * line number is still valid (lines may have been deleted). * Do not restore if v:char was set to a non-empty string. */ if (!EQUAL_POS(curwin->w_cursor, save_cursor) #ifdef FEAT_EVAL && *get_vim_var_str(VV_CHAR) == NUL #endif && save_cursor.lnum <= curbuf->b_ml.ml_line_count) { int save_state = State; curwin->w_cursor = save_cursor; State = INSERT; check_cursor_col(); State = save_state; } } { Insstart = curwin->w_cursor; if (startln) Insstart.col = 0; } Insstart_textlen = (colnr_T)linetabsize(ml_get_curline()); Insstart_blank_vcol = MAXCOL; if (!did_ai) ai_col = 0; if (cmdchar != NUL && restart_edit == 0) { ResetRedobuff(); AppendNumberToRedobuff(count); if (cmdchar == 'V' || cmdchar == 'v') { /* "gR" or "gr" command */ AppendCharToRedobuff('g'); AppendCharToRedobuff((cmdchar == 'v') ? 'r' : 'R'); } else { if (cmdchar == K_PS) AppendCharToRedobuff('a'); else AppendCharToRedobuff(cmdchar); if (cmdchar == 'g') /* "gI" command */ AppendCharToRedobuff('I'); else if (cmdchar == 'r') /* "r" command */ count = 1; /* insert only one */ } } if (cmdchar == 'R') { State = REPLACE; } else if (cmdchar == 'V' || cmdchar == 'v') { State = VREPLACE; replaceState = VREPLACE; orig_line_count = curbuf->b_ml.ml_line_count; vr_lines_changed = 1; } else State = INSERT; stop_insert_mode = FALSE; /* * Need to recompute the cursor position, it might move when the cursor is * on a TAB or special character. */ curs_columns(TRUE); /* * Enable langmap or IME, indicated by 'iminsert'. * Note that IME may enabled/disabled without us noticing here, thus the * 'iminsert' value may not reflect what is actually used. It is updated * when hitting . */ if (curbuf->b_p_iminsert == B_IMODE_LMAP) State |= LANGMAP; #ifdef FEAT_RIGHTLEFT /* there is no reverse replace mode */ revins_on = (State == INSERT && p_ri); if (revins_on) undisplay_dollar(); revins_chars = 0; revins_legal = 0; revins_scol = -1; #endif if (!p_ek) /* Disable bracketed paste mode, we won't recognize the escape * sequences. */ out_str(T_BD); /* * Handle restarting Insert mode. * Don't do this for "CTRL-O ." (repeat an insert): In that case we get * here with something in the stuff buffer. */ if (restart_edit != 0 && stuff_empty()) { arrow_used = TRUE; restart_edit = 0; /* * If the cursor was after the end-of-line before the CTRL-O and it is * now at the end-of-line, put it after the end-of-line (this is not * correct in very rare cases). * Also do this if curswant is greater than the current virtual * column. Eg after "^O$" or "^O80|". */ validate_virtcol(); update_curswant(); if (((ins_at_eol && curwin->w_cursor.lnum == o_lnum) || curwin->w_curswant > curwin->w_virtcol) && *(ptr = ml_get_curline() + curwin->w_cursor.col) != NUL) { if (ptr[1] == NUL) ++curwin->w_cursor.col; else if (has_mbyte) { i = (*mb_ptr2len)(ptr); if (ptr[i] == NUL) curwin->w_cursor.col += i; } } ins_at_eol = FALSE; } else arrow_used = FALSE; /* we are in insert mode now, don't need to start it anymore */ need_start_insertmode = FALSE; /* Need to save the line for undo before inserting the first char. */ ins_need_undo = TRUE; #ifdef FEAT_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_im && did_restart_edit == 0) change_warning(i == 0 ? 0 : i + 1); #ifdef FEAT_DIGRAPHS do_digraph(-1); /* clear digraphs */ #endif /* * Get the current length of the redo buffer, those characters have to be * skipped if we want to get to the inserted characters. */ ptr = get_inserted(); if (ptr == NULL) new_insert_skip = 0; else { new_insert_skip = (int)STRLEN(ptr); vim_free(ptr); } old_indent = 0; /* * Main loop in Insert mode: repeat until Insert mode is left. */ for (;;) { #ifdef FEAT_RIGHTLEFT if (!revins_legal) revins_scol = -1; /* reset on illegal motions */ else revins_legal = 0; #endif if (arrow_used) /* don't repeat insert when arrow key used */ count = 0; if (update_Insstart_orig) Insstart_orig = Insstart; if (stop_insert_mode) { /* ":stopinsert" used or 'insertmode' reset */ count = 0; goto doESCkey; } /* set curwin->w_curswant for next K_DOWN or K_UP */ if (!arrow_used) curwin->w_set_curswant = TRUE; /* If there is no typeahead may check for timestamps (e.g., for when a * menu invoked a shell command). */ if (stuff_empty()) { did_check_timestamps = FALSE; if (need_check_timestamps) check_timestamps(FALSE); } /* * When emsg() was called msg_scroll will have been set. */ msg_scroll = FALSE; #ifdef FEAT_FOLDING /* Open fold at the cursor line, according to 'foldopen'. */ if (fdo_flags & FDO_INSERT) foldOpenCursor(); /* Close folds where the cursor isn't, according to 'foldclose' */ if (!char_avail()) foldCheckClose(); #endif #ifdef FEAT_JOB_CHANNEL if (bt_prompt(curbuf)) { init_prompt(cmdchar_todo); cmdchar_todo = NUL; } #endif /* * If we inserted a character at the last position of the last line in * the window, scroll the window one line up. This avoids an extra * redraw. * This is detected when the cursor column is smaller after inserting * something. * Don't do this when the topline changed already, it has * already been adjusted (by insertchar() calling open_line())). */ if (curbuf->b_mod_set && curwin->w_p_wrap && !did_backspace && curwin->w_topline == old_topline #ifdef FEAT_DIFF && curwin->w_topfill == old_topfill #endif ) { mincol = curwin->w_wcol; validate_cursor_col(); if ( #ifdef FEAT_VARTABS (int)curwin->w_wcol < mincol - tabstop_at(get_nolist_virtcol(), curbuf->b_p_ts, curbuf->b_p_vts_array) #else (int)curwin->w_wcol < mincol - curbuf->b_p_ts #endif && curwin->w_wrow == W_WINROW(curwin) + curwin->w_height - 1 - get_scrolloff_value() && (curwin->w_cursor.lnum != curwin->w_topline #ifdef FEAT_DIFF || curwin->w_topfill > 0 #endif )) { #ifdef FEAT_DIFF if (curwin->w_topfill > 0) --curwin->w_topfill; else #endif #ifdef FEAT_FOLDING if (hasFolding(curwin->w_topline, NULL, &old_topline)) set_topline(curwin, old_topline + 1); else #endif set_topline(curwin, curwin->w_topline + 1); } } /* May need to adjust w_topline to show the cursor. */ update_topline(); did_backspace = FALSE; validate_cursor(); /* may set must_redraw */ /* * Redraw the display when no characters are waiting. * Also shows mode, ruler and positions cursor. */ ins_redraw(TRUE); if (curwin->w_p_scb) do_check_scrollbind(TRUE); if (curwin->w_p_crb) do_check_cursorbind(); update_curswant(); old_topline = curwin->w_topline; #ifdef FEAT_DIFF old_topfill = curwin->w_topfill; #endif /* * Get a character for Insert mode. Ignore K_IGNORE and K_NOP. */ if (c != K_CURSORHOLD) lastc = c; /* remember the previous char for CTRL-D */ /* After using CTRL-G U the next cursor key will not break undo. */ if (dont_sync_undo == MAYBE) dont_sync_undo = TRUE; else dont_sync_undo = FALSE; if (cmdchar == K_PS) /* Got here from normal mode when bracketed paste started. */ c = K_PS; else do { c = safe_vgetc(); if (stop_insert_mode) { // Insert mode ended, possibly from a callback. count = 0; nomove = TRUE; goto doESCkey; } } while (c == K_IGNORE || c == K_NOP); /* Don't want K_CURSORHOLD for the second key, e.g., after CTRL-V. */ did_cursorhold = TRUE; #ifdef FEAT_RIGHTLEFT if (p_hkmap && KeyTyped) c = hkmap(c); /* Hebrew mode mapping */ #endif /* CTRL-\ CTRL-N goes to Normal mode, * CTRL-\ CTRL-G goes to mode selected with 'insertmode', * CTRL-\ CTRL-O is like CTRL-O but without moving the cursor. */ if (c == Ctrl_BSL) { /* may need to redraw when no more chars available now */ ins_redraw(FALSE); ++no_mapping; ++allow_keys; c = plain_vgetc(); --no_mapping; --allow_keys; if (c != Ctrl_N && c != Ctrl_G && c != Ctrl_O) { /* it's something else */ vungetc(c); c = Ctrl_BSL; } else if (c == Ctrl_G && p_im) continue; else { if (c == Ctrl_O) { ins_ctrl_o(); ins_at_eol = FALSE; /* cursor keeps its column */ nomove = TRUE; } count = 0; goto doESCkey; } } #ifdef FEAT_DIGRAPHS c = do_digraph(c); #endif if (c == Ctrl_V || c == Ctrl_Q) { ins_ctrl_v(); c = Ctrl_V; /* pretend CTRL-V is last typed character */ continue; } #ifdef FEAT_RIGHTLEFT if (curwin->w_p_rl) switch (c) { case K_LEFT: c = K_RIGHT; break; case K_S_LEFT: c = K_S_RIGHT; break; case K_C_LEFT: c = K_C_RIGHT; break; case K_RIGHT: c = K_LEFT; break; case K_S_RIGHT: c = K_S_LEFT; break; case K_C_RIGHT: c = K_C_LEFT; break; } #endif /* * If 'keymodel' contains "startsel", may start selection. If it * does, a CTRL-O and c will be stuffed, we need to get these * characters. */ if (ins_start_select(c)) continue; /* * The big switch to handle a character in insert mode. */ switch (c) { case ESC: /* End input mode */ if (echeck_abbr(ESC + ABBR_OFF)) break; /* FALLTHROUGH */ case Ctrl_C: /* End input mode */ #ifdef FEAT_JOB_CHANNEL if (c == Ctrl_C && bt_prompt(curbuf)) { if (invoke_prompt_interrupt()) { if (!bt_prompt(curbuf)) // buffer changed to a non-prompt buffer, get out of // Insert mode goto doESCkey; break; } } #endif #ifdef UNIX do_intr: #endif /* when 'insertmode' set, and not halfway a mapping, don't leave * Insert mode */ if (goto_im()) { if (got_int) { (void)vgetc(); /* flush all buffers */ got_int = FALSE; } else vim_beep(BO_IM); break; } doESCkey: /* * This is the ONLY return from edit()! */ /* Always update o_lnum, so that a "CTRL-O ." that adds a line * still puts the cursor back after the inserted text. */ if (ins_at_eol && gchar_cursor() == NUL) o_lnum = curwin->w_cursor.lnum; if (ins_esc(&count, cmdchar, nomove)) { // When CTRL-C was typed got_int will be set, with the result // that the autocommands won't be executed. When mapped got_int // is not set, but let's keep the behavior the same. if (cmdchar != 'r' && cmdchar != 'v' && c != Ctrl_C) ins_apply_autocmds(EVENT_INSERTLEAVE); did_cursorhold = FALSE; return (c == Ctrl_O); } continue; case Ctrl_Z: /* suspend when 'insertmode' set */ if (!p_im) goto normalchar; /* insert CTRL-Z as normal char */ do_cmdline_cmd((char_u *)"stop"); continue; case Ctrl_O: /* execute one command */ #ifdef FEAT_COMPL_FUNC if (ctrl_x_mode_omni()) goto docomplete; #endif if (echeck_abbr(Ctrl_O + ABBR_OFF)) break; ins_ctrl_o(); /* don't move the cursor left when 'virtualedit' has "onemore". */ if (ve_flags & VE_ONEMORE) { ins_at_eol = FALSE; nomove = TRUE; } count = 0; goto doESCkey; case K_INS: /* toggle insert/replace mode */ case K_KINS: ins_insert(replaceState); break; case K_SELECT: /* end of Select mode mapping - ignore */ break; case K_HELP: /* Help key works like */ case K_F1: case K_XF1: stuffcharReadbuff(K_HELP); if (p_im) need_start_insertmode = TRUE; goto doESCkey; case K_ZERO: /* Insert the previously inserted text. */ case NUL: case Ctrl_A: /* For ^@ the trailing ESC will end the insert, unless there is an * error. */ if (stuff_inserted(NUL, 1L, (c == Ctrl_A)) == FAIL && c != Ctrl_A && !p_im) goto doESCkey; /* quit insert mode */ inserted_space = FALSE; break; case Ctrl_G: /* commands starting with CTRL-G */ ins_ctrl_g(); break; case Ctrl_HAT: /* switch input mode and/or langmap */ ins_ctrl_hat(); break; #ifdef FEAT_RIGHTLEFT case Ctrl__: /* switch between languages */ if (!p_ari) goto normalchar; ins_ctrl_(); break; #endif case Ctrl_D: /* Make indent one shiftwidth smaller. */ /* FALLTHROUGH */ case Ctrl_T: /* Make indent one shiftwidth greater. */ ins_shift(c, lastc); auto_format(FALSE, TRUE); inserted_space = FALSE; break; case K_DEL: /* delete character under the cursor */ case K_KDEL: ins_del(); auto_format(FALSE, TRUE); break; case K_BS: /* delete character before the cursor */ case Ctrl_H: did_backspace = ins_bs(c, BACKSPACE_CHAR, &inserted_space); auto_format(FALSE, TRUE); break; case Ctrl_W: /* delete word before the cursor */ #ifdef FEAT_JOB_CHANNEL if (bt_prompt(curbuf) && (mod_mask & MOD_MASK_SHIFT) == 0) { // In a prompt window CTRL-W is used for window commands. // Use Shift-CTRL-W to delete a word. stuffcharReadbuff(Ctrl_W); restart_edit = 'A'; nomove = TRUE; count = 0; goto doESCkey; } #endif did_backspace = ins_bs(c, BACKSPACE_WORD, &inserted_space); auto_format(FALSE, TRUE); break; case Ctrl_U: /* delete all inserted text in current line */ #ifdef FEAT_COMPL_FUNC /* CTRL-X CTRL-U completes with 'completefunc'. */ if (ctrl_x_mode_function()) goto docomplete; #endif did_backspace = ins_bs(c, BACKSPACE_LINE, &inserted_space); auto_format(FALSE, TRUE); inserted_space = FALSE; break; case K_PS: bracketed_paste(PASTE_INSERT, FALSE, NULL); if (cmdchar == K_PS) /* invoked from normal mode, bail out */ goto doESCkey; break; case K_PE: /* Got K_PE without K_PS, ignore. */ break; case K_IGNORE: /* Something mapped to nothing */ break; case K_CURSORHOLD: /* Didn't type something for a while. */ ins_apply_autocmds(EVENT_CURSORHOLDI); did_cursorhold = TRUE; break; case K_HOME: /* */ case K_KHOME: case K_S_HOME: case K_C_HOME: ins_home(c); break; case K_END: /* */ case K_KEND: case K_S_END: case K_C_END: ins_end(c); break; case K_LEFT: /* */ if (mod_mask & (MOD_MASK_SHIFT | MOD_MASK_CTRL)) ins_s_left(); else ins_left(); break; case K_S_LEFT: /* */ case K_C_LEFT: ins_s_left(); break; case K_RIGHT: /* */ if (mod_mask & (MOD_MASK_SHIFT | MOD_MASK_CTRL)) ins_s_right(); else ins_right(); break; case K_S_RIGHT: /* */ case K_C_RIGHT: ins_s_right(); break; case K_UP: /* */ if (mod_mask & MOD_MASK_SHIFT) ins_pageup(); else ins_up(FALSE); break; case K_S_UP: /* */ case K_PAGEUP: case K_KPAGEUP: ins_pageup(); break; case K_DOWN: /* */ if (mod_mask & MOD_MASK_SHIFT) ins_pagedown(); else ins_down(FALSE); break; case K_S_DOWN: /* */ case K_PAGEDOWN: case K_KPAGEDOWN: ins_pagedown(); break; case K_S_TAB: /* When not mapped, use like a normal TAB */ c = TAB; /* FALLTHROUGH */ case TAB: /* TAB or Complete patterns along path */ inserted_space = FALSE; if (ins_tab()) goto normalchar; /* insert TAB as a normal char */ auto_format(FALSE, TRUE); break; case K_KENTER: /* */ c = CAR; /* FALLTHROUGH */ case CAR: case NL: #if defined(FEAT_QUICKFIX) /* In a quickfix window a jumps to the error under the * cursor. */ if (bt_quickfix(curbuf) && c == CAR) { if (curwin->w_llist_ref == NULL) /* quickfix window */ do_cmdline_cmd((char_u *)".cc"); else /* location list window */ do_cmdline_cmd((char_u *)".ll"); break; } #endif #ifdef FEAT_JOB_CHANNEL if (bt_prompt(curbuf)) { invoke_prompt_callback(); if (!bt_prompt(curbuf)) // buffer changed to a non-prompt buffer, get out of // Insert mode goto doESCkey; break; } #endif if (ins_eol(c) == FAIL && !p_im) goto doESCkey; /* out of memory */ auto_format(FALSE, FALSE); inserted_space = FALSE; break; #if defined(FEAT_DIGRAPHS) case Ctrl_K: /* digraph or keyword completion */ #ifdef FEAT_DIGRAPHS c = ins_digraph(); if (c == NUL) break; #endif goto normalchar; #endif case Ctrl_L: /* Whole line completion after ^X */ { /* CTRL-L with 'insertmode' set: Leave Insert mode */ if (p_im) { if (echeck_abbr(Ctrl_L + ABBR_OFF)) break; goto doESCkey; } goto normalchar; } case Ctrl_Y: /* copy from previous line or scroll down */ case Ctrl_E: /* copy from next line or scroll up */ c = ins_ctrl_ey(c); break; default: #ifdef UNIX if (c == intr_char) /* special interrupt char */ goto do_intr; #endif normalchar: /* * Insert a normal character. */ #if defined(FEAT_EVAL) if (!p_paste) { /* Trigger InsertCharPre. */ char_u *str = do_insert_char_pre(c); char_u *p; if (str != NULL) { if (*str != NUL && stop_arrow() != FAIL) { /* Insert the new value of v:char literally. */ for (p = str; *p != NUL; MB_PTR_ADV(p)) { c = PTR2CHAR(p); if (c == CAR || c == K_KENTER || c == NL) ins_eol(c); else ins_char(c); } AppendToRedobuffLit(str, -1); } vim_free(str); c = NUL; } /* If the new value is already inserted or an empty string * then don't insert any character. */ if (c == NUL) break; } #endif #ifdef FEAT_SMARTINDENT /* Try to perform smart-indenting. */ ins_try_si(c); #endif if (c == ' ') { inserted_space = TRUE; if (Insstart_blank_vcol == MAXCOL && curwin->w_cursor.lnum == Insstart.lnum) Insstart_blank_vcol = get_nolist_virtcol(); } /* Insert a normal character and check for abbreviations on a * special character. Let CTRL-] expand abbreviations without * inserting it. */ if (vim_iswordc(c) || (!echeck_abbr( // Add ABBR_OFF for characters above 0x100, this is // what check_abbr() expects. (has_mbyte && c >= 0x100) ? (c + ABBR_OFF) : c) && c != Ctrl_RSB)) { insert_special(c, FALSE, FALSE); #ifdef FEAT_RIGHTLEFT revins_legal++; revins_chars++; #endif } auto_format(FALSE, TRUE); #ifdef FEAT_FOLDING /* When inserting a character the cursor line must never be in a * closed fold. */ foldOpenCursor(); #endif break; } /* end of switch (c) */ /* If typed something may trigger CursorHoldI again. */ if (c != K_CURSORHOLD) did_cursorhold = FALSE; /* If the cursor was moved we didn't just insert a space */ if (arrow_used) inserted_space = FALSE; } /* for (;;) */ /* NOTREACHED */ } int ins_need_undo_get(void) { return ins_need_undo; } /* * Redraw for Insert mode. * This is postponed until getting the next character to make '$' in the 'cpo' * option work correctly. * Only redraw when there are no characters available. This speeds up * inserting sequences of characters (e.g., for CTRL-R). */ void ins_redraw(int ready) // not busy with something { if (char_avail()) return; /* Trigger CursorMoved if the cursor moved. Not when the popup menu is * visible, the command might delete it. */ if (ready && (has_cursormovedI()) && !EQUAL_POS(last_cursormoved, curwin->w_cursor)) { if (has_cursormovedI()) { /* Make sure curswant is correct, an autocommand may call * getcurpos(). */ update_curswant(); ins_apply_autocmds(EVENT_CURSORMOVEDI); } last_cursormoved = curwin->w_cursor; } /* Trigger TextChangedI if b_changedtick differs. */ if (ready && has_textchangedI() && curbuf->b_last_changedtick != CHANGEDTICK(curbuf)) { aco_save_T aco; varnumber_T tick = CHANGEDTICK(curbuf); // save and restore curwin and curbuf, in case the autocmd changes them aucmd_prepbuf(&aco, curbuf); apply_autocmds(EVENT_TEXTCHANGEDI, NULL, NULL, FALSE, curbuf); aucmd_restbuf(&aco); curbuf->b_last_changedtick = CHANGEDTICK(curbuf); if (tick != CHANGEDTICK(curbuf)) // see ins_apply_autocmds() u_save(curwin->w_cursor.lnum, (linenr_T)(curwin->w_cursor.lnum + 1)); } if (must_redraw) update_screen(0); showruler(FALSE); setcursor(); emsg_on_display = FALSE; /* may remove error message now */ } /* * Handle a CTRL-V or CTRL-Q typed in Insert mode. */ static void ins_ctrl_v(void) { int c; int did_putchar = FALSE; /* may need to redraw when no more chars available now */ ins_redraw(FALSE); if (redrawing() && !char_avail()) { edit_putchar('^', TRUE); did_putchar = TRUE; } AppendToRedobuff((char_u *)CTRL_V_STR); /* CTRL-V */ c = get_literal(); if (did_putchar) { /* when the line fits in 'columns' the '^' is at the start of the next * line and will not removed by the redraw */ edit_unputchar(); } insert_special(c, FALSE, TRUE); #ifdef FEAT_RIGHTLEFT revins_chars++; revins_legal++; #endif } /* * Put a character directly onto the screen. It's not stored in a buffer. * Used while handling CTRL-K, CTRL-V, etc. in Insert mode. */ static int pc_status; #define PC_STATUS_UNSET 0 /* pc_bytes was not set */ #define PC_STATUS_RIGHT 1 /* right halve of double-wide char */ #define PC_STATUS_LEFT 2 /* left halve of double-wide char */ #define PC_STATUS_SET 3 /* pc_bytes was filled */ static char_u pc_bytes[MB_MAXBYTES + 1]; /* saved bytes */ static int pc_attr; static int pc_row; static int pc_col; void edit_putchar(int c, int highlight) { int attr; if (ScreenLines != NULL) { update_topline(); /* just in case w_topline isn't valid */ validate_cursor(); if (highlight) attr = HL_ATTR(HLF_8); else attr = 0; pc_row = W_WINROW(curwin) + curwin->w_wrow; pc_col = curwin->w_wincol; pc_status = PC_STATUS_UNSET; #ifdef FEAT_RIGHTLEFT if (curwin->w_p_rl) { pc_col += curwin->w_width - 1 - curwin->w_wcol; if (has_mbyte) { int fix_col = mb_fix_col(pc_col, pc_row); if (fix_col != pc_col) { screen_putchar(' ', pc_row, fix_col, attr); --curwin->w_wcol; pc_status = PC_STATUS_RIGHT; } } } else #endif { pc_col += curwin->w_wcol; if (mb_lefthalve(pc_row, pc_col)) pc_status = PC_STATUS_LEFT; } /* save the character to be able to put it back */ if (pc_status == PC_STATUS_UNSET) { screen_getbytes(pc_row, pc_col, pc_bytes, &pc_attr); pc_status = PC_STATUS_SET; } screen_putchar(c, pc_row, pc_col, attr); } } #if defined(FEAT_JOB_CHANNEL) || defined(PROTO) /* * Return the effective prompt for the current buffer. */ char_u *prompt_text(void) { if (curbuf->b_prompt_text == NULL) return (char_u *)"% "; return curbuf->b_prompt_text; } /* * Prepare for prompt mode: Make sure the last line has the prompt text. * Move the cursor to this line. */ static void init_prompt(int cmdchar_todo) { char_u *prompt = prompt_text(); char_u *text; curwin->w_cursor.lnum = curbuf->b_ml.ml_line_count; text = ml_get_curline(); if (STRNCMP(text, prompt, STRLEN(prompt)) != 0) { // prompt is missing, insert it or append a line with it if (*text == NUL) ml_replace(curbuf->b_ml.ml_line_count, prompt, TRUE); else ml_append(curbuf->b_ml.ml_line_count, prompt, 0, FALSE); curwin->w_cursor.lnum = curbuf->b_ml.ml_line_count; coladvance((colnr_T)MAXCOL); changed_bytes(curbuf->b_ml.ml_line_count, 0); } // Insert always starts after the prompt, allow editing text after it. if (Insstart_orig.lnum != curwin->w_cursor.lnum || Insstart_orig.col != (int)STRLEN(prompt)) { Insstart.lnum = curwin->w_cursor.lnum; Insstart.col = (int)STRLEN(prompt); Insstart_orig = Insstart; Insstart_textlen = Insstart.col; Insstart_blank_vcol = MAXCOL; arrow_used = FALSE; } if (cmdchar_todo == 'A') coladvance((colnr_T)MAXCOL); if (cmdchar_todo == 'I' || curwin->w_cursor.col <= (int)STRLEN(prompt)) curwin->w_cursor.col = (int)STRLEN(prompt); /* Make sure the cursor is in a valid position. */ check_cursor(); } /* * Return TRUE if the cursor is in the editable position of the prompt line. */ int prompt_curpos_editable() { return curwin->w_cursor.lnum == curbuf->b_ml.ml_line_count && curwin->w_cursor.col >= (int)STRLEN(prompt_text()); } #endif /* * Undo the previous edit_putchar(). */ void edit_unputchar(void) { if (pc_status != PC_STATUS_UNSET && pc_row >= msg_scrolled) { if (pc_status == PC_STATUS_RIGHT) ++curwin->w_wcol; if (pc_status == PC_STATUS_RIGHT || pc_status == PC_STATUS_LEFT) redrawWinline(curwin, curwin->w_cursor.lnum); else screen_puts(pc_bytes, pc_row - msg_scrolled, pc_col, pc_attr); } } /* * Called when p_dollar is set: display a '$' at the end of the changed text * Only works when cursor is in the line that changes. */ void display_dollar(colnr_T col) { colnr_T save_col; if (!redrawing()) return; cursor_off(); save_col = curwin->w_cursor.col; curwin->w_cursor.col = col; if (has_mbyte) { char_u *p; /* If on the last byte of a multi-byte move to the first byte. */ p = ml_get_curline(); curwin->w_cursor.col -= (*mb_head_off)(p, p + col); } curs_columns(FALSE); /* recompute w_wrow and w_wcol */ if (curwin->w_wcol < curwin->w_width) { edit_putchar('$', FALSE); dollar_vcol = curwin->w_virtcol; } curwin->w_cursor.col = save_col; } /* * Call this function before moving the cursor from the normal insert position * in insert mode. */ static void undisplay_dollar(void) { if (dollar_vcol >= 0) { dollar_vcol = -1; redrawWinline(curwin, curwin->w_cursor.lnum); } } /* * Insert an indent (for 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 ) * type == INDENT_DEC decrease indent (for CTRL-D) * type == INDENT_SET set indent to "amount" * if round is TRUE, round the indent to 'shiftwidth' (only with _INC and _Dec). */ void change_indent(int type, int amount, int round, int replaced, /* replaced character, put on replace stack */ int call_changed_bytes) /* call changed_bytes() */ { int vcol; int last_vcol; int insstart_less; /* reduction for Insstart.col */ int new_cursor_col; int i; char_u *ptr; int save_p_list; int start_col; colnr_T vc; colnr_T orig_col = 0; /* init for GCC */ char_u *new_line, *orig_line = NULL; /* init for GCC */ /* VREPLACE mode needs to know what the line was like before changing */ if (State & VREPLACE_FLAG) { orig_line = vim_strsave(ml_get_curline()); /* Deal with NULL below */ orig_col = curwin->w_cursor.col; } /* for the following tricks we don't want list mode */ save_p_list = curwin->w_p_list; curwin->w_p_list = FALSE; vc = getvcol_nolist(&curwin->w_cursor); vcol = vc; /* * For Replace mode we need to fix the replace stack later, which is only * possible when the cursor is in the indent. Remember the number of * characters before the cursor if it's possible. */ start_col = curwin->w_cursor.col; /* determine offset from first non-blank */ new_cursor_col = curwin->w_cursor.col; beginline(BL_WHITE); new_cursor_col -= curwin->w_cursor.col; insstart_less = curwin->w_cursor.col; /* * If the cursor is in the indent, compute how many screen columns the * cursor is to the left of the first non-blank. */ if (new_cursor_col < 0) vcol = get_indent() - vcol; if (new_cursor_col > 0) /* can't fix replace stack */ start_col = -1; /* * Set the new indent. The cursor will be put on the first non-blank. */ if (type == INDENT_SET) (void)set_indent(amount, call_changed_bytes ? SIN_CHANGED : 0); else { int save_State = State; /* Avoid being called recursively. */ if (State & VREPLACE_FLAG) State = INSERT; shift_line(type == INDENT_DEC, round, 1, call_changed_bytes); State = save_State; } insstart_less -= curwin->w_cursor.col; /* * Try to put cursor on same character. * If the cursor is at or after the first non-blank in the line, * compute the cursor column relative to the column of the first * non-blank character. * If we are not in insert mode, leave the cursor on the first non-blank. * If the cursor is before the first non-blank, position it relative * to the first non-blank, counted in screen columns. */ if (new_cursor_col >= 0) { /* * When changing the indent while the cursor is touching it, reset * Insstart_col to 0. */ if (new_cursor_col == 0) insstart_less = MAXCOL; new_cursor_col += curwin->w_cursor.col; } else if (!(State & INSERT)) new_cursor_col = curwin->w_cursor.col; else { /* * Compute the screen column where the cursor should be. */ vcol = get_indent() - vcol; curwin->w_virtcol = (colnr_T)((vcol < 0) ? 0 : vcol); /* * Advance the cursor until we reach the right screen column. */ vcol = last_vcol = 0; new_cursor_col = -1; ptr = ml_get_curline(); while (vcol <= (int)curwin->w_virtcol) { last_vcol = vcol; if (has_mbyte && new_cursor_col >= 0) new_cursor_col += (*mb_ptr2len)(ptr + new_cursor_col); else ++new_cursor_col; vcol += lbr_chartabsize(ptr, ptr + new_cursor_col, (colnr_T)vcol); } vcol = last_vcol; /* * May need to insert spaces to be able to position the cursor on * the right screen column. */ if (vcol != (int)curwin->w_virtcol) { curwin->w_cursor.col = (colnr_T)new_cursor_col; i = (int)curwin->w_virtcol - vcol; ptr = alloc(i + 1); if (ptr != NULL) { new_cursor_col += i; ptr[i] = NUL; while (--i >= 0) ptr[i] = ' '; ins_str(ptr); vim_free(ptr); } } /* * When changing the indent while the cursor is in it, reset * Insstart_col to 0. */ insstart_less = MAXCOL; } curwin->w_p_list = save_p_list; if (new_cursor_col <= 0) curwin->w_cursor.col = 0; else curwin->w_cursor.col = (colnr_T)new_cursor_col; curwin->w_set_curswant = TRUE; changed_cline_bef_curs(); /* * May have to adjust the start of the insert. */ if (State & INSERT) { if (curwin->w_cursor.lnum == Insstart.lnum && Insstart.col != 0) { if ((int)Insstart.col <= insstart_less) Insstart.col = 0; else Insstart.col -= insstart_less; } if ((int)ai_col <= insstart_less) ai_col = 0; else ai_col -= insstart_less; } /* * For REPLACE mode, may have to fix the replace stack, if it's possible. * If the number of characters before the cursor decreased, need to pop a * few characters from the replace stack. * If the number of characters before the cursor increased, need to push a * few NULs onto the replace stack. */ if (REPLACE_NORMAL(State) && start_col >= 0) { while (start_col > (int)curwin->w_cursor.col) { replace_join(0); /* remove a NUL from the replace stack */ --start_col; } while (start_col < (int)curwin->w_cursor.col || replaced) { replace_push(NUL); if (replaced) { replace_push(replaced); replaced = NUL; } ++start_col; } } /* * For VREPLACE mode, we also have to fix the replace stack. In this case * it is always possible because we backspace over the whole line and then * put it back again the way we wanted it. */ if (State & VREPLACE_FLAG) { /* If orig_line didn't allocate, just return. At least we did the job, * even if you can't backspace. */ if (orig_line == NULL) return; /* Save new line */ new_line = vim_strsave(ml_get_curline()); if (new_line == NULL) return; /* We only put back the new line up to the cursor */ new_line[curwin->w_cursor.col] = NUL; /* Put back original line */ ml_replace(curwin->w_cursor.lnum, orig_line, FALSE); curwin->w_cursor.col = orig_col; /* Backspace from cursor to start of line */ backspace_until_column(0); /* Insert new stuff into line again */ ins_bytes(new_line); vim_free(new_line); } } /* * Truncate the space at the end of a line. This is to be used only in an * insert mode. It handles fixing the replace stack for REPLACE and VREPLACE * modes. */ void truncate_spaces(char_u *line) { int i; /* find start of trailing white space */ for (i = (int)STRLEN(line) - 1; i >= 0 && VIM_ISWHITE(line[i]); i--) { if (State & REPLACE_FLAG) replace_join(0); /* remove a NUL from the replace stack */ } line[i + 1] = NUL; } /* * Backspace the cursor until the given column. Handles REPLACE and VREPLACE * modes correctly. May also be used when not in insert mode at all. * Will attempt not to go before "col" even when there is a composing * character. */ void backspace_until_column(int col) { while ((int)curwin->w_cursor.col > col) { curwin->w_cursor.col--; if (State & REPLACE_FLAG) replace_do_bs(col); else if (!del_char_after_col(col)) break; } } /* * Like del_char(), but make sure not to go before column "limit_col". * Only matters when there are composing characters. * Return TRUE when something was deleted. */ static int del_char_after_col(int limit_col UNUSED) { if (enc_utf8 && limit_col >= 0) { colnr_T ecol = curwin->w_cursor.col + 1; /* Make sure the cursor is at the start of a character, but * skip forward again when going too far back because of a * composing character. */ mb_adjust_cursor(); while (curwin->w_cursor.col < (colnr_T)limit_col) { int l = utf_ptr2len(ml_get_cursor()); if (l == 0) /* end of line */ break; curwin->w_cursor.col += l; } if (*ml_get_cursor() == NUL || curwin->w_cursor.col == ecol) return FALSE; del_bytes((long)((int)ecol - curwin->w_cursor.col), FALSE, TRUE); } else (void)del_char(FALSE); return TRUE; } /* * Next character is interpreted literally. * A one, two or three digit decimal number is interpreted as its byte value. * If one or two digits are entered, the next character is given to vungetc(). * For Unicode a character > 255 may be returned. */ int get_literal(void) { int cc; int nc; int i; int hex = FALSE; int octal = FALSE; int unicode = 0; if (got_int) return Ctrl_C; ++no_mapping; /* don't map the next key hits */ cc = 0; i = 0; for (;;) { nc = plain_vgetc(); if (nc == 'x' || nc == 'X') hex = TRUE; else if (nc == 'o' || nc == 'O') octal = TRUE; else if (nc == 'u' || nc == 'U') unicode = nc; else { if (hex || unicode != 0) { if (!vim_isxdigit(nc)) break; cc = cc * 16 + hex2nr(nc); } else if (octal) { if (nc < '0' || nc > '7') break; cc = cc * 8 + nc - '0'; } else { if (!VIM_ISDIGIT(nc)) break; cc = cc * 10 + nc - '0'; } ++i; } if (cc > 255 && unicode == 0) cc = 255; /* limit range to 0-255 */ nc = 0; if (hex) /* hex: up to two chars */ { if (i >= 2) break; } else if (unicode) /* Unicode: up to four or eight chars */ { if ((unicode == 'u' && i >= 4) || (unicode == 'U' && i >= 8)) break; } else if (i >= 3) /* decimal or octal: up to three chars */ break; } if (i == 0) /* no number entered */ { if (nc == K_ZERO) /* NUL is stored as NL */ { cc = '\n'; nc = 0; } else { cc = nc; nc = 0; } } if (cc == 0) /* NUL is stored as NL */ cc = '\n'; if (enc_dbcs && (cc & 0xff) == 0) cc = '?'; /* don't accept an illegal DBCS char, the NUL in the second byte will cause trouble! */ --no_mapping; if (nc) vungetc(nc); got_int = FALSE; /* CTRL-C typed after CTRL-V is not an interrupt */ return cc; } /* * Insert character, taking care of special keys and mod_mask */ static void insert_special(int c, int allow_modmask, int ctrlv) /* c was typed after CTRL-V */ { char_u *p; int len; /* * Special function key, translate into "". 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 , * unless 'allow_modmask' is TRUE. */ /* Command-key never produces a normal key */ if (mod_mask & MOD_MASK_CMD) { allow_modmask = TRUE; } else { if (IS_SPECIAL(c) || (mod_mask && allow_modmask)) { p = get_special_key_name(c, mod_mask); len = (int)STRLEN(p); c = p[len - 1]; if (len > 2) { if (stop_arrow() == FAIL) return; p[len - 1] = NUL; ins_str(p); AppendToRedobuffLit(p, -1); ctrlv = FALSE; } } if (stop_arrow() == OK) insertchar(c, ctrlv ? INSCHAR_CTRLV : 0, -1); } } /* * Special characters in this context are those that need processing other * than the simple insertion that can be performed here. This includes ESC * which terminates the insert, and CR/NL which need special processing to * open up a new line. This routine tries to optimize insertions performed by * the "redo", "undo" or "put" commands, so it needs to know when it should * stop and defer processing to the "normal" mechanism. * '0' and '^' are special, because they can be followed by CTRL-D. */ #ifdef EBCDIC #define ISSPECIAL(c) ((c) < ' ' || (c) == '0' || (c) == '^') #else #define ISSPECIAL(c) ((c) < ' ' || (c) >= DEL || (c) == '0' || (c) == '^') #endif #define WHITECHAR(cc) \ (VIM_ISWHITE(cc) && \ (!enc_utf8 || !utf_iscomposing(utf_ptr2char(ml_get_cursor() + 1)))) /* * "flags": INSCHAR_FORMAT - force formatting * INSCHAR_CTRLV - char typed just after CTRL-V * INSCHAR_NO_FEX - don't use 'formatexpr' * * NOTE: passes the flags value straight through to internal_format() which, * beside INSCHAR_FORMAT (above), is also looking for these: * INSCHAR_DO_COM - format comments * INSCHAR_COM_LIST - format comments with num list or 2nd line indent */ void insertchar(int c, /* character to insert or NUL */ int flags, /* INSCHAR_FORMAT, etc. */ int second_indent) /* indent for second line if >= 0 */ { int textwidth; #ifdef FEAT_COMMENTS char_u *p; #endif int fo_ins_blank; int force_format = flags & INSCHAR_FORMAT; textwidth = comp_textwidth(force_format); fo_ins_blank = has_format_option(FO_INS_BLANK); /* * Try to break the line in two or more pieces when: * - Always do this if we have been called to do formatting only. * - Always do this when 'formatoptions' has the 'a' flag and the line * ends in white space. * - Otherwise: * - Don't do this if inserting a blank * - Don't do this if an existing character is being replaced, unless * we're in VREPLACE mode. * - Do this if the cursor is not on the line where insert started * or - 'formatoptions' doesn't have 'l' or the line was not too long * before the insert. * - 'formatoptions' doesn't have 'b' or a blank was inserted at or * before 'textwidth' */ if (textwidth > 0 && (force_format || (!VIM_ISWHITE(c) && !((State & REPLACE_FLAG) && !(State & VREPLACE_FLAG) && *ml_get_cursor() != NUL) && (curwin->w_cursor.lnum != Insstart.lnum || ((!has_format_option(FO_INS_LONG) || Insstart_textlen <= (colnr_T)textwidth) && (!fo_ins_blank || Insstart_blank_vcol <= (colnr_T)textwidth)))))) { /* Format with 'formatexpr' when it's set. Use internal formatting * when 'formatexpr' isn't set or it returns non-zero. */ #if defined(FEAT_EVAL) int do_internal = TRUE; colnr_T virtcol = get_nolist_virtcol() + char2cells(c != NUL ? c : gchar_cursor()); if (*curbuf->b_p_fex != NUL && (flags & INSCHAR_NO_FEX) == 0 && (force_format || virtcol > (colnr_T)textwidth)) { do_internal = (fex_format(curwin->w_cursor.lnum, 1L, c) != 0); /* It may be required to save for undo again, e.g. when setline() * was called. */ ins_need_undo = TRUE; } if (do_internal) #endif internal_format(textwidth, second_indent, flags, c == NUL, c); } if (c == NUL) /* only formatting was wanted */ return; #ifdef FEAT_COMMENTS /* Check whether this character should end a comment. */ if (did_ai && (int)c == end_comment_pending) { char_u *line; char_u lead_end[COM_MAX_LEN]; /* end-comment string */ int middle_len, end_len; int i; /* * Need to remove existing (middle) comment leader and insert end * comment leader. First, check what comment leader we can find. */ i = get_leader_len(line = ml_get_curline(), &p, FALSE, TRUE); if (i > 0 && vim_strchr(p, COM_MIDDLE) != NULL) /* Just checking */ { /* Skip middle-comment string */ while (*p && p[-1] != ':') /* find end of middle flags */ ++p; middle_len = copy_option_part(&p, lead_end, COM_MAX_LEN, ","); /* Don't count trailing white space for middle_len */ while (middle_len > 0 && VIM_ISWHITE(lead_end[middle_len - 1])) --middle_len; /* Find the end-comment string */ while (*p && p[-1] != ':') /* find end of end flags */ ++p; end_len = copy_option_part(&p, lead_end, COM_MAX_LEN, ","); /* Skip white space before the cursor */ i = curwin->w_cursor.col; while (--i >= 0 && VIM_ISWHITE(line[i])) ; i++; /* Skip to before the middle leader */ i -= middle_len; /* Check some expected things before we go on */ if (i >= 0 && lead_end[end_len - 1] == end_comment_pending) { /* Backspace over all the stuff we want to replace */ backspace_until_column(i); /* * Insert the end-comment string, except for the last * character, which will get inserted as normal later. */ ins_bytes_len(lead_end, end_len - 1); } } } end_comment_pending = NUL; #endif did_ai = FALSE; #ifdef FEAT_SMARTINDENT did_si = FALSE; can_si = FALSE; can_si_back = FALSE; #endif /* * If there's any pending input, grab up to INPUT_BUFLEN at once. * This speeds up normal text input considerably. * Don't do this when 'cindent' or 'indentexpr' is set, because we might * need to re-indent at a ':', or any other character (but not what * 'paste' is set).. * Don't do this when there an InsertCharPre autocommand is defined, * because we need to fire the event for every character. * Do the check for InsertCharPre before the call to vpeekc() because the * InsertCharPre autocommand could change the input buffer. */ if (!ISSPECIAL(c) && (!has_mbyte || (*mb_char2len)(c) == 1) && !has_insertcharpre() && vpeekc() != NUL && !(State & REPLACE_FLAG) #ifdef FEAT_RIGHTLEFT && !p_ri #endif ) { #define INPUT_BUFLEN 100 char_u buf[INPUT_BUFLEN + 1]; int i; colnr_T virtcol = 0; buf[0] = c; i = 1; if (textwidth > 0) virtcol = get_nolist_virtcol(); /* * Stop the string when: * - no more chars available * - finding a special character (command key) * - buffer is full * - running into the 'textwidth' boundary * - need to check for abbreviation: A non-word char after a word-char */ while ((c = vpeekc()) != NUL && !ISSPECIAL(c) && (!has_mbyte || MB_BYTE2LEN_CHECK(c) == 1) && i < INPUT_BUFLEN && (textwidth == 0 || (virtcol += byte2cells(buf[i - 1])) < (colnr_T)textwidth) && !(!no_abbr && !vim_iswordc(c) && vim_iswordc(buf[i - 1]))) { #ifdef FEAT_RIGHTLEFT c = vgetc(); if (p_hkmap && KeyTyped) c = hkmap(c); /* Hebrew mode mapping */ buf[i++] = c; #else buf[i++] = vgetc(); #endif } #ifdef FEAT_DIGRAPHS do_digraph(-1); /* clear digraphs */ do_digraph(buf[i - 1]); /* may be the start of a digraph */ #endif buf[i] = NUL; ins_str(buf); if (flags & INSCHAR_CTRLV) { redo_literal(*buf); i = 1; } else i = 0; if (buf[i] != NUL) AppendToRedobuffLit(buf + i, -1); } else { int cc; if (has_mbyte && (cc = (*mb_char2len)(c)) > 1) { char_u buf[MB_MAXBYTES + 1]; (*mb_char2bytes)(c, buf); buf[cc] = NUL; ins_char_bytes(buf, cc); AppendCharToRedobuff(c); } else { ins_char(c); if (flags & INSCHAR_CTRLV) redo_literal(c); else AppendCharToRedobuff(c); } } } /* * Format text at the current insert position. * * If the INSCHAR_COM_LIST flag is present, then the value of second_indent * will be the comment leader length sent to open_line(). */ static void internal_format(int textwidth, int second_indent, int flags, int format_only, int c) /* character to be inserted (can be NUL) */ { int cc; int save_char = NUL; int haveto_redraw = FALSE; int fo_ins_blank = has_format_option(FO_INS_BLANK); int fo_multibyte = has_format_option(FO_MBYTE_BREAK); int fo_white_par = has_format_option(FO_WHITE_PAR); int first_line = TRUE; #ifdef FEAT_COMMENTS colnr_T leader_len; int no_leader = FALSE; int do_comments = (flags & INSCHAR_DO_COM); #endif #ifdef FEAT_LINEBREAK int has_lbr = curwin->w_p_lbr; /* make sure win_lbr_chartabsize() counts correctly */ curwin->w_p_lbr = FALSE; #endif /* * When 'ai' is off we don't want a space under the cursor to be * deleted. Replace it with an 'x' temporarily. */ if (!curbuf->b_p_ai && !(State & VREPLACE_FLAG)) { cc = gchar_cursor(); if (VIM_ISWHITE(cc)) { save_char = cc; pchar_cursor('x'); } } /* * Repeat breaking lines, until the current line is not too long. */ while (!got_int) { int startcol; /* Cursor column at entry */ int wantcol; /* column at textwidth border */ int foundcol; /* column for start of spaces */ int end_foundcol = 0; /* column for start of word */ colnr_T len; colnr_T virtcol; int orig_col = 0; char_u *saved_text = NULL; colnr_T col; colnr_T end_col; int wcc; // counter for whitespace chars virtcol = get_nolist_virtcol() + char2cells(c != NUL ? c : gchar_cursor()); if (virtcol <= (colnr_T)textwidth) break; #ifdef FEAT_COMMENTS if (no_leader) do_comments = FALSE; else if (!(flags & INSCHAR_FORMAT) && has_format_option(FO_WRAP_COMS)) do_comments = TRUE; /* Don't break until after the comment leader */ if (do_comments) leader_len = get_leader_len(ml_get_curline(), NULL, FALSE, TRUE); else leader_len = 0; /* If the line doesn't start with a comment leader, then don't * start one in a following broken line. Avoids that a %word * moved to the start of the next line causes all following lines * to start with %. */ if (leader_len == 0) no_leader = TRUE; #endif if (!(flags & INSCHAR_FORMAT) #ifdef FEAT_COMMENTS && leader_len == 0 #endif && !has_format_option(FO_WRAP)) break; if ((startcol = curwin->w_cursor.col) == 0) break; /* find column of textwidth border */ coladvance((colnr_T)textwidth); wantcol = curwin->w_cursor.col; curwin->w_cursor.col = startcol; foundcol = 0; /* * Find position to break at. * Stop at first entered white when 'formatoptions' has 'v' */ while ((!fo_ins_blank && !has_format_option(FO_INS_VI)) || (flags & INSCHAR_FORMAT) || curwin->w_cursor.lnum != Insstart.lnum || curwin->w_cursor.col >= Insstart.col) { if (curwin->w_cursor.col == startcol && c != NUL) cc = c; else cc = gchar_cursor(); if (WHITECHAR(cc)) { /* remember position of blank just before text */ end_col = curwin->w_cursor.col; // find start of sequence of blanks wcc = 0; while (curwin->w_cursor.col > 0 && WHITECHAR(cc)) { dec_cursor(); cc = gchar_cursor(); // Increment count of how many whitespace chars in this // group; we only need to know if it's more than one. if (wcc < 2) wcc++; } if (curwin->w_cursor.col == 0 && WHITECHAR(cc)) break; /* only spaces in front of text */ // Don't break after a period when 'formatoptions' has 'p' and // there are less than two spaces. if (has_format_option(FO_PERIOD_ABBR) && cc == '.' && wcc < 2) continue; #ifdef FEAT_COMMENTS /* Don't break until after the comment leader */ if (curwin->w_cursor.col < leader_len) break; #endif if (has_format_option(FO_ONE_LETTER)) { /* do not break after one-letter words */ if (curwin->w_cursor.col == 0) break; /* one-letter word at begin */ #ifdef FEAT_COMMENTS /* do not break "#a b" when 'tw' is 2 */ if (curwin->w_cursor.col <= leader_len) break; #endif col = curwin->w_cursor.col; dec_cursor(); cc = gchar_cursor(); if (WHITECHAR(cc)) continue; /* one-letter, continue */ curwin->w_cursor.col = col; } inc_cursor(); end_foundcol = end_col + 1; foundcol = curwin->w_cursor.col; if (curwin->w_cursor.col <= (colnr_T)wantcol) break; } else if (cc >= 0x100 && fo_multibyte) { /* Break after or before a multi-byte character. */ if (curwin->w_cursor.col != startcol) { #ifdef FEAT_COMMENTS /* Don't break until after the comment leader */ if (curwin->w_cursor.col < leader_len) break; #endif col = curwin->w_cursor.col; inc_cursor(); /* Don't change end_foundcol if already set. */ if (foundcol != curwin->w_cursor.col) { foundcol = curwin->w_cursor.col; end_foundcol = foundcol; if (curwin->w_cursor.col <= (colnr_T)wantcol) break; } curwin->w_cursor.col = col; } if (curwin->w_cursor.col == 0) break; col = curwin->w_cursor.col; dec_cursor(); cc = gchar_cursor(); if (WHITECHAR(cc)) continue; /* break with space */ #ifdef FEAT_COMMENTS /* Don't break until after the comment leader */ if (curwin->w_cursor.col < leader_len) break; #endif curwin->w_cursor.col = col; foundcol = curwin->w_cursor.col; end_foundcol = foundcol; if (curwin->w_cursor.col <= (colnr_T)wantcol) break; } if (curwin->w_cursor.col == 0) break; dec_cursor(); } if (foundcol == 0) /* no spaces, cannot break line */ { curwin->w_cursor.col = startcol; break; } /* Going to break the line, remove any "$" now. */ undisplay_dollar(); /* * Offset between cursor position and line break is used by replace * stack functions. VREPLACE does not use this, and backspaces * over the text instead. */ if (State & VREPLACE_FLAG) orig_col = startcol; /* Will start backspacing from here */ else replace_offset = startcol - end_foundcol; /* * adjust startcol for spaces that will be deleted and * characters that will remain on top line */ curwin->w_cursor.col = foundcol; while ((cc = gchar_cursor(), WHITECHAR(cc)) && (!fo_white_par || curwin->w_cursor.col < startcol)) inc_cursor(); startcol -= curwin->w_cursor.col; if (startcol < 0) startcol = 0; if (State & VREPLACE_FLAG) { /* * In VREPLACE mode, we will backspace over the text to be * wrapped, so save a copy now to put on the next line. */ saved_text = vim_strsave(ml_get_cursor()); curwin->w_cursor.col = orig_col; if (saved_text == NULL) break; /* Can't do it, out of memory */ saved_text[startcol] = NUL; /* Backspace over characters that will move to the next line */ if (!fo_white_par) backspace_until_column(foundcol); } else { /* put cursor after pos. to break line */ if (!fo_white_par) curwin->w_cursor.col = foundcol; } /* * Split the line just before the margin. * Only insert/delete lines, but don't really redraw the window. */ open_line(FORWARD, OPENLINE_DELSPACES + OPENLINE_MARKFIX + (fo_white_par ? OPENLINE_KEEPTRAIL : 0) #ifdef FEAT_COMMENTS + (do_comments ? OPENLINE_DO_COM : 0) + ((flags & INSCHAR_COM_LIST) ? OPENLINE_COM_LIST : 0) #endif , ((flags & INSCHAR_COM_LIST) ? second_indent : old_indent)); if (!(flags & INSCHAR_COM_LIST)) old_indent = 0; replace_offset = 0; if (first_line) { if (!(flags & INSCHAR_COM_LIST)) { /* * This section is for auto-wrap of numeric lists. When not * in insert mode (i.e. format_lines()), the INSCHAR_COM_LIST * flag will be set and open_line() will handle it (as seen * above). The code here (and in get_number_indent()) will * recognize comments if needed... */ if (second_indent < 0 && has_format_option(FO_Q_NUMBER)) second_indent = get_number_indent(curwin->w_cursor.lnum - 1); if (second_indent >= 0) { if (State & VREPLACE_FLAG) change_indent(INDENT_SET, second_indent, FALSE, NUL, TRUE); else #ifdef FEAT_COMMENTS if (leader_len > 0 && second_indent - leader_len > 0) { int i; int padding = second_indent - leader_len; /* We started at the first_line of a numbered list * that has a comment. the open_line() function has * inserted the proper comment leader and positioned * the cursor at the end of the split line. Now we * add the additional whitespace needed after the * comment leader for the numbered list. */ for (i = 0; i < padding; i++) ins_str((char_u *)" "); } else { #endif (void)set_indent(second_indent, SIN_CHANGED); #ifdef FEAT_COMMENTS } #endif } } first_line = FALSE; } if (State & VREPLACE_FLAG) { /* * In VREPLACE mode we have backspaced over the text to be * moved, now we re-insert it into the new line. */ ins_bytes(saved_text); vim_free(saved_text); } else { /* * Check if cursor is not past the NUL off the line, cindent * may have added or removed indent. */ curwin->w_cursor.col += startcol; len = (colnr_T)STRLEN(ml_get_curline()); if (curwin->w_cursor.col > len) curwin->w_cursor.col = len; } haveto_redraw = TRUE; /* moved the cursor, don't autoindent or cindent now */ did_ai = FALSE; #ifdef FEAT_SMARTINDENT did_si = FALSE; can_si = FALSE; can_si_back = FALSE; #endif line_breakcheck(); } if (save_char != NUL) /* put back space after cursor */ pchar_cursor(save_char); #ifdef FEAT_LINEBREAK curwin->w_p_lbr = has_lbr; #endif if (!format_only && haveto_redraw) { update_topline(); redraw_curbuf_later(VALID); } } /* * Called after inserting or deleting text: When 'formatoptions' includes the * 'a' flag format from the current line until the end of the paragraph. * Keep the cursor at the same position relative to the text. * The caller must have saved the cursor line for undo, following ones will be * saved here. */ void auto_format(int trailblank, /* when TRUE also format with trailing blank */ int prev_line) /* may start in previous line */ { pos_T pos; colnr_T len; char_u *old; char_u *new, *pnew; int wasatend; int cc; if (!has_format_option(FO_AUTO)) return; pos = curwin->w_cursor; old = ml_get_curline(); /* may remove added space */ check_auto_format(FALSE); /* Don't format in Insert mode when the cursor is on a trailing blank, the * user might insert normal text next. Also skip formatting when "1" is * in 'formatoptions' and there is a single character before the cursor. * Otherwise the line would be broken and when typing another non-white * next they are not joined back together. */ wasatend = (pos.col == (colnr_T)STRLEN(old)); if (*old != NUL && !trailblank && wasatend) { dec_cursor(); cc = gchar_cursor(); if (!WHITECHAR(cc) && curwin->w_cursor.col > 0 && has_format_option(FO_ONE_LETTER)) dec_cursor(); cc = gchar_cursor(); if (WHITECHAR(cc)) { curwin->w_cursor = pos; return; } curwin->w_cursor = pos; } #ifdef FEAT_COMMENTS /* With the 'c' flag in 'formatoptions' and 't' missing: only format * comments. */ if (has_format_option(FO_WRAP_COMS) && !has_format_option(FO_WRAP) && get_leader_len(old, NULL, FALSE, TRUE) == 0) return; #endif /* * May start formatting in a previous line, so that after "x" a word is * moved to the previous line if it fits there now. Only when this is not * the start of a paragraph. */ if (prev_line && !paragraph_start(curwin->w_cursor.lnum)) { --curwin->w_cursor.lnum; if (u_save_cursor() == FAIL) return; } /* * Do the formatting and restore the cursor position. "saved_cursor" will * be adjusted for the text formatting. */ saved_cursor = pos; format_lines((linenr_T)-1, FALSE); curwin->w_cursor = saved_cursor; saved_cursor.lnum = 0; if (curwin->w_cursor.lnum > curbuf->b_ml.ml_line_count) { /* "cannot happen" */ curwin->w_cursor.lnum = curbuf->b_ml.ml_line_count; coladvance((colnr_T)MAXCOL); } else check_cursor_col(); /* Insert mode: If the cursor is now after the end of the line while it * previously wasn't, the line was broken. Because of the rule above we * need to add a space when 'w' is in 'formatoptions' to keep a paragraph * formatted. */ if (!wasatend && has_format_option(FO_WHITE_PAR)) { new = ml_get_curline(); len = (colnr_T)STRLEN(new); if (curwin->w_cursor.col == len) { pnew = vim_strnsave(new, len + 2); pnew[len] = ' '; pnew[len + 1] = NUL; ml_replace(curwin->w_cursor.lnum, pnew, FALSE); /* remove the space later */ did_add_space = TRUE; } else /* may remove added space */ check_auto_format(FALSE); } check_cursor(); } /* * When an extra space was added to continue a paragraph for auto-formatting, * delete it now. The space must be under the cursor, just after the insert * position. */ static void check_auto_format(int end_insert) /* TRUE when ending Insert mode */ { int c = ' '; int cc; if (did_add_space) { cc = gchar_cursor(); if (!WHITECHAR(cc)) /* Somehow the space was removed already. */ did_add_space = FALSE; else { if (!end_insert) { inc_cursor(); c = gchar_cursor(); dec_cursor(); } if (c != NUL) { /* The space is no longer at the end of the line, delete it. */ del_char(FALSE); did_add_space = FALSE; } } } } /* * Find out textwidth to be used for formatting: * if 'textwidth' option is set, use it * else if 'wrapmargin' option is set, use curwin->w_width - 'wrapmargin' * if invalid value, use 0. * Set default to window width (maximum 79) for "gq" operator. */ int comp_textwidth(int ff) /* force formatting (for "gq" command) */ { int textwidth; textwidth = curbuf->b_p_tw; if (textwidth == 0 && curbuf->b_p_wm) { /* The width is the window width minus 'wrapmargin' minus all the * things that add to the margin. */ textwidth = curwin->w_width - curbuf->b_p_wm; #ifdef FEAT_FOLDING textwidth -= curwin->w_p_fdc; #endif #ifdef FEAT_SIGNS if (signcolumn_on(curwin)) textwidth -= 1; #endif if (curwin->w_p_nu || curwin->w_p_rnu) textwidth -= 8; } if (textwidth < 0) textwidth = 0; if (ff && textwidth == 0) { textwidth = curwin->w_width - 1; if (textwidth > 79) textwidth = 79; } return textwidth; } /* * Put a character in the redo buffer, for when just after a CTRL-V. */ static void redo_literal(int c) { char_u buf[10]; /* Only digits need special treatment. Translate them into a string of * three digits. */ if (VIM_ISDIGIT(c)) { vim_snprintf((char *)buf, sizeof(buf), "%03d", c); AppendToRedobuff(buf); } else AppendCharToRedobuff(c); } /* * start_arrow() is called when an arrow key is used in insert mode. * For undo/redo it resembles hitting the key. */ void start_arrow(pos_T *end_insert_pos) /* can be NULL */ { start_arrow_common(end_insert_pos, TRUE); } /* * Like start_arrow() but with end_change argument. * Will prepare for redo of CTRL-G U if "end_change" is FALSE. */ static void start_arrow_with_change(pos_T *end_insert_pos, /* can be NULL */ int end_change) /* end undoable change */ { start_arrow_common(end_insert_pos, end_change); if (!end_change) { AppendCharToRedobuff(Ctrl_G); AppendCharToRedobuff('U'); } } static void start_arrow_common(pos_T *end_insert_pos, /* can be NULL */ int end_change) /* end undoable change */ { if (!arrow_used && end_change) /* something has been inserted */ { AppendToRedobuff(ESC_STR); stop_insert(end_insert_pos, FALSE, FALSE); arrow_used = TRUE; /* this means we stopped the current insert */ } } /* * stop_arrow() is called before a change is made in insert mode. * If an arrow key has been used, start a new insertion. * Returns FAIL if undo is impossible, shouldn't insert then. */ int stop_arrow(void) { if (arrow_used) { Insstart = curwin->w_cursor; /* new insertion starts here */ if (Insstart.col > Insstart_orig.col && !ins_need_undo) /* Don't update the original insert position when moved to the * right, except when nothing was inserted yet. */ update_Insstart_orig = FALSE; Insstart_textlen = (colnr_T)linetabsize(ml_get_curline()); if (u_save_cursor() == OK) { arrow_used = FALSE; ins_need_undo = FALSE; } ai_col = 0; if (State & VREPLACE_FLAG) { orig_line_count = curbuf->b_ml.ml_line_count; vr_lines_changed = 1; } ResetRedobuff(); AppendToRedobuff((char_u *)"1i"); /* pretend we start an insertion */ new_insert_skip = 2; } else if (ins_need_undo) { if (u_save_cursor() == OK) ins_need_undo = FALSE; } #ifdef FEAT_FOLDING /* Always open fold at the cursor line when inserting something. */ foldOpenCursor(); #endif return (arrow_used || ins_need_undo ? FAIL : OK); } /* * Do a few things to stop inserting. * "end_insert_pos" is where insert ended. It is NULL when we already jumped * to another window/buffer. */ static void stop_insert(pos_T *end_insert_pos, int esc, /* called by ins_esc() */ int nomove) /* , don't move cursor */ { int cc; char_u *ptr; stop_redo_ins(); replace_flush(); /* abandon replace stack */ /* * Save the inserted text for later redo with ^@ and CTRL-A. * Don't do it when "restart_edit" was set and nothing was inserted, * otherwise CTRL-O w and then will clear "last_insert". */ ptr = get_inserted(); if (did_restart_edit == 0 || (ptr != NULL && (int)STRLEN(ptr) > new_insert_skip)) { vim_free(last_insert); last_insert = ptr; last_insert_skip = new_insert_skip; } else vim_free(ptr); if (!arrow_used && end_insert_pos != NULL) { /* Auto-format now. It may seem strange to do this when stopping an * insertion (or moving the cursor), but it's required when appending * a line and having it end in a space. But only do it when something * was actually inserted, otherwise undo won't work. */ if (!ins_need_undo && has_format_option(FO_AUTO)) { pos_T tpos = curwin->w_cursor; /* When the cursor is at the end of the line after a space the * formatting will move it to the following word. Avoid that by * moving the cursor onto the space. */ cc = 'x'; if (curwin->w_cursor.col > 0 && gchar_cursor() == NUL) { dec_cursor(); cc = gchar_cursor(); if (!VIM_ISWHITE(cc)) curwin->w_cursor = tpos; } auto_format(TRUE, FALSE); if (VIM_ISWHITE(cc)) { if (gchar_cursor() != NUL) inc_cursor(); // If the cursor is still at the same character, also keep // the "coladd". if (gchar_cursor() == NUL && curwin->w_cursor.lnum == tpos.lnum && curwin->w_cursor.col == tpos.col) curwin->w_cursor.coladd = tpos.coladd; } } /* If a space was inserted for auto-formatting, remove it now. */ check_auto_format(TRUE); /* If we just did an auto-indent, remove the white space from the end * of the line, and put the cursor back. * Do this when ESC was used or moving the cursor up/down. * Check for the old position still being valid, just in case the text * got changed unexpectedly. */ if (!nomove && did_ai && (esc || (vim_strchr(p_cpo, CPO_INDENT) == NULL && curwin->w_cursor.lnum != end_insert_pos->lnum)) && end_insert_pos->lnum <= curbuf->b_ml.ml_line_count) { pos_T tpos = curwin->w_cursor; curwin->w_cursor = *end_insert_pos; check_cursor_col(); /* make sure it is not past the line */ for (;;) { if (gchar_cursor() == NUL && curwin->w_cursor.col > 0) --curwin->w_cursor.col; cc = gchar_cursor(); if (!VIM_ISWHITE(cc)) break; if (del_char(TRUE) == FAIL) break; /* should not happen */ } if (curwin->w_cursor.lnum != tpos.lnum) curwin->w_cursor = tpos; else { /* reset tpos, could have been invalidated in the loop above */ tpos = curwin->w_cursor; tpos.col++; if (cc != NUL && gchar_pos(&tpos) == NUL) ++curwin->w_cursor.col; /* put cursor back on the NUL */ } /* may have started Visual mode, adjust the position for * deleted characters. */ if (VIsual_active && VIsual.lnum == curwin->w_cursor.lnum) { int len = (int)STRLEN(ml_get_curline()); if (VIsual.col > len) { VIsual.col = len; VIsual.coladd = 0; } } } } did_ai = FALSE; #ifdef FEAT_SMARTINDENT did_si = FALSE; can_si = FALSE; can_si_back = FALSE; #endif /* Set '[ and '] to the inserted text. When end_insert_pos is NULL we are * now in a different buffer. */ if (end_insert_pos != NULL) { curbuf->b_op_start = Insstart; curbuf->b_op_start_orig = Insstart_orig; curbuf->b_op_end = *end_insert_pos; } } /* * Set the last inserted text to a single character. * Used for the replace command. */ void set_last_insert(int c) { char_u *s; vim_free(last_insert); last_insert = alloc(MB_MAXBYTES * 3 + 5); if (last_insert != NULL) { s = last_insert; /* Use the CTRL-V only when entering a special char */ if (c < ' ' || c == DEL) *s++ = Ctrl_V; s = add_char2buf(c, s); *s++ = ESC; *s++ = NUL; last_insert_skip = 0; } } #if defined(EXITFREE) || defined(PROTO) void free_last_insert(void) { VIM_CLEAR(last_insert); } #endif /* * Add character "c" to buffer "s". Escape the special meaning of K_SPECIAL * and CSI. Handle multi-byte characters. * Returns a pointer to after the added bytes. */ char_u *add_char2buf(int c, char_u *s) { char_u temp[MB_MAXBYTES + 1]; int i; int len; len = (*mb_char2bytes)(c, temp); for (i = 0; i < len; ++i) { c = temp[i]; /* Need to escape K_SPECIAL and CSI like in the typeahead buffer. */ if (c == K_SPECIAL) { *s++ = K_SPECIAL; *s++ = KS_SPECIAL; *s++ = KE_FILLER; } else *s++ = c; } return s; } /* * move cursor to start of line * if flags & BL_WHITE move to first non-white * if flags & BL_SOL move to first non-white if startofline is set, * otherwise keep "curswant" column * if flags & BL_FIX don't leave the cursor on a NUL. */ void beginline(int flags) { if ((flags & BL_SOL) && !p_sol) coladvance(curwin->w_curswant); else { curwin->w_cursor.col = 0; curwin->w_cursor.coladd = 0; if (flags & (BL_WHITE | BL_SOL)) { char_u *ptr; for (ptr = ml_get_curline(); VIM_ISWHITE(*ptr) && !((flags & BL_FIX) && ptr[1] == NUL); ++ptr) ++curwin->w_cursor.col; } curwin->w_set_curswant = TRUE; } } /* * oneright oneleft cursor_down cursor_up * * Move one char {right,left,down,up}. * Doesn't move onto the NUL past the end of the line, unless it is allowed. * Return OK when successful, FAIL when we hit a line of file boundary. */ int oneright(void) { char_u *ptr; int l; if (virtual_active()) { pos_T prevpos = curwin->w_cursor; /* Adjust for multi-wide char (excluding TAB) */ ptr = ml_get_cursor(); coladvance(getviscol() + ((*ptr != TAB && vim_isprintc((*mb_ptr2char)(ptr))) ? ptr2cells(ptr) : 1)); curwin->w_set_curswant = TRUE; /* Return OK if the cursor moved, FAIL otherwise (at window edge). */ return (prevpos.col != curwin->w_cursor.col || prevpos.coladd != curwin->w_cursor.coladd) ? OK : FAIL; } ptr = ml_get_cursor(); if (*ptr == NUL) return FAIL; /* already at the very end */ if (has_mbyte) l = (*mb_ptr2len)(ptr); else l = 1; /* move "l" bytes right, but don't end up on the NUL, unless 'virtualedit' * contains "onemore". */ if (ptr[l] == NUL && (ve_flags & VE_ONEMORE) == 0) return FAIL; curwin->w_cursor.col += l; curwin->w_set_curswant = TRUE; return OK; } int oneleft(void) { if (virtual_active()) { #ifdef FEAT_LINEBREAK int width; #endif int v = getviscol(); if (v == 0) return FAIL; #ifdef FEAT_LINEBREAK /* We might get stuck on 'showbreak', skip over it. */ width = 1; for (;;) { coladvance(v - width); /* getviscol() is slow, skip it when 'showbreak' is empty, * 'breakindent' is not set and there are no multi-byte * characters */ if ((*p_sbr == NUL && !curwin->w_p_bri && !has_mbyte) || getviscol() < v) break; ++width; } #else coladvance(v - 1); #endif if (curwin->w_cursor.coladd == 1) { char_u *ptr; /* Adjust for multi-wide char (not a TAB) */ ptr = ml_get_cursor(); if (*ptr != TAB && vim_isprintc((*mb_ptr2char)(ptr)) && ptr2cells(ptr) > 1) curwin->w_cursor.coladd = 0; } curwin->w_set_curswant = TRUE; return OK; } if (curwin->w_cursor.col == 0) return FAIL; curwin->w_set_curswant = TRUE; --curwin->w_cursor.col; /* if the character on the left of the current cursor is a multi-byte * character, move to its first byte */ if (has_mbyte) mb_adjust_cursor(); return OK; } int cursor_up(long n, int upd_topline) /* When TRUE: update topline */ { linenr_T lnum; if (n > 0) { lnum = curwin->w_cursor.lnum; /* This fails if the cursor is already in the first line or the count * is larger than the line number and '-' is in 'cpoptions' */ if (lnum <= 1 || (n >= lnum && vim_strchr(p_cpo, CPO_MINUS) != NULL)) return FAIL; if (n >= lnum) lnum = 1; else #ifdef FEAT_FOLDING if (hasAnyFolding(curwin)) { /* * Count each sequence of folded lines as one logical line. */ /* go to the start of the current fold */ (void)hasFolding(lnum, &lnum, NULL); while (n--) { /* move up one line */ --lnum; if (lnum <= 1) break; /* If we entered a fold, move to the beginning, unless in * Insert mode or when 'foldopen' contains "all": it will open * in a moment. */ if (n > 0 || !((State & INSERT) || (fdo_flags & FDO_ALL))) (void)hasFolding(lnum, &lnum, NULL); } if (lnum < 1) lnum = 1; } else #endif lnum -= n; curwin->w_cursor.lnum = lnum; } /* try to advance to the column we want to be at */ coladvance(curwin->w_curswant); if (upd_topline) update_topline(); /* make sure curwin->w_topline is valid */ return OK; } /* * Cursor down a number of logical lines. */ int cursor_down(long n, int upd_topline) /* When TRUE: update topline */ { linenr_T lnum; if (n > 0) { lnum = curwin->w_cursor.lnum; #ifdef FEAT_FOLDING /* Move to last line of fold, will fail if it's the end-of-file. */ (void)hasFolding(lnum, NULL, &lnum); #endif /* This fails if the cursor is already in the last line or would move * beyond the last line and '-' is in 'cpoptions' */ if (lnum >= curbuf->b_ml.ml_line_count || (lnum + n > curbuf->b_ml.ml_line_count && vim_strchr(p_cpo, CPO_MINUS) != NULL)) return FAIL; if (lnum + n >= curbuf->b_ml.ml_line_count) lnum = curbuf->b_ml.ml_line_count; else #ifdef FEAT_FOLDING if (hasAnyFolding(curwin)) { linenr_T last; /* count each sequence of folded lines as one logical line */ while (n--) { if (hasFolding(lnum, NULL, &last)) lnum = last + 1; else ++lnum; if (lnum >= curbuf->b_ml.ml_line_count) break; } if (lnum > curbuf->b_ml.ml_line_count) lnum = curbuf->b_ml.ml_line_count; } else #endif lnum += n; curwin->w_cursor.lnum = lnum; } /* try to advance to the column we want to be at */ coladvance(curwin->w_curswant); if (upd_topline) update_topline(); /* make sure curwin->w_topline is valid */ return OK; } /* * Stuff the last inserted text in the read buffer. * Last_insert actually is a copy of the redo buffer, so we * first have to remove the command. */ int stuff_inserted(int c, /* Command character to be inserted */ long count, /* Repeat this many times */ int no_esc) /* Don't add an ESC at the end */ { char_u *esc_ptr; char_u *ptr; char_u *last_ptr; char_u last = NUL; ptr = get_last_insert(); if (ptr == NULL) { emsg(_(e_noinstext)); return FAIL; } /* may want to stuff the command character, to start Insert mode */ if (c != NUL) stuffcharReadbuff(c); if ((esc_ptr = (char_u *)vim_strrchr(ptr, ESC)) != NULL) *esc_ptr = NUL; /* remove the ESC */ /* when the last char is either "0" or "^" it will be quoted if no ESC * comes after it OR if it will inserted more than once and "ptr" * starts with ^D. -- Acevedo */ last_ptr = (esc_ptr ? esc_ptr : ptr + STRLEN(ptr)) - 1; if (last_ptr >= ptr && (*last_ptr == '0' || *last_ptr == '^') && (no_esc || (*ptr == Ctrl_D && count > 1))) { last = *last_ptr; *last_ptr = NUL; } do { stuffReadbuff(ptr); /* a trailing "0" is inserted as "048", "^" as "^" */ if (last) stuffReadbuff((char_u *)(last == '0' ? IF_EB("\026\060\064\070", CTRL_V_STR "xf0") : IF_EB("\026^", CTRL_V_STR "^"))); } while (--count > 0); if (last) *last_ptr = last; if (esc_ptr != NULL) *esc_ptr = ESC; /* put the ESC back */ /* may want to stuff a trailing ESC, to get out of Insert mode */ if (!no_esc) stuffcharReadbuff(ESC); return OK; } char_u *get_last_insert(void) { if (last_insert == NULL) return NULL; return last_insert + last_insert_skip; } /* * Get last inserted string, and remove trailing . * Returns pointer to allocated memory (must be freed) or NULL. */ char_u *get_last_insert_save(void) { char_u *s; int len; if (last_insert == NULL) return NULL; s = vim_strsave(last_insert + last_insert_skip); if (s != NULL) { len = (int)STRLEN(s); if (len > 0 && s[len - 1] == ESC) /* remove trailing ESC */ s[len - 1] = NUL; } return s; } /* * Check the word in front of the cursor for an abbreviation. * Called when the non-id character "c" has been entered. * When an abbreviation is recognized it is removed from the text and * the replacement string is inserted in typebuf.tb_buf[], followed by "c". */ static int echeck_abbr(int c) { /* Don't check for abbreviation in paste mode, when disabled and just * after moving around with cursor keys. */ if (p_paste || no_abbr || arrow_used) return FALSE; return check_abbr(c, ml_get_curline(), curwin->w_cursor.col, curwin->w_cursor.lnum == Insstart.lnum ? Insstart.col : 0); } /* * replace-stack functions * * When replacing characters, the replaced characters are remembered for each * new character. This is used to re-insert the old text when backspacing. * * There is a NUL headed list of characters for each character that is * currently in the file after the insertion point. When BS is used, one NUL * headed list is put back for the deleted character. * * For a newline, there are two NUL headed lists. One contains the characters * that the NL replaced. The extra one stores the characters after the cursor * that were deleted (always white space). * * Replace_offset is normally 0, in which case replace_push will add a new * character at the end of the stack. If replace_offset is not 0, that many * characters will be left on the stack above the newly inserted character. */ static char_u *replace_stack = NULL; static long replace_stack_nr = 0; /* next entry in replace stack */ static long replace_stack_len = 0; /* max. number of entries */ void replace_push(int c) /* character that is replaced (NUL is none) */ { char_u *p; if (replace_stack_nr < replace_offset) /* nothing to do */ return; if (replace_stack_len <= replace_stack_nr) { replace_stack_len += 50; p = ALLOC_MULT(char_u, replace_stack_len); if (p == NULL) /* out of memory */ { replace_stack_len -= 50; return; } if (replace_stack != NULL) { mch_memmove(p, replace_stack, (size_t)(replace_stack_nr * sizeof(char_u))); vim_free(replace_stack); } replace_stack = p; } p = replace_stack + replace_stack_nr - replace_offset; if (replace_offset) mch_memmove(p + 1, p, (size_t)(replace_offset * sizeof(char_u))); *p = c; ++replace_stack_nr; } /* * Push a character onto the replace stack. Handles a multi-byte character in * reverse byte order, so that the first byte is popped off first. * Return the number of bytes done (includes composing characters). */ int replace_push_mb(char_u *p) { int l = (*mb_ptr2len)(p); int j; for (j = l - 1; j >= 0; --j) replace_push(p[j]); return l; } /* * Pop one item from the replace stack. * return -1 if stack empty * return replaced character or NUL otherwise */ static int replace_pop(void) { if (replace_stack_nr == 0) return -1; return (int)replace_stack[--replace_stack_nr]; } /* * Join the top two items on the replace stack. This removes to "off"'th NUL * encountered. */ static void replace_join(int off) /* offset for which NUL to remove */ { int i; for (i = replace_stack_nr; --i >= 0;) if (replace_stack[i] == NUL && off-- <= 0) { --replace_stack_nr; mch_memmove(replace_stack + i, replace_stack + i + 1, (size_t)(replace_stack_nr - i)); return; } } /* * Pop bytes from the replace stack until a NUL is found, and insert them * before the cursor. Can only be used in REPLACE or VREPLACE mode. */ static void replace_pop_ins(void) { int cc; int oldState = State; State = NORMAL; /* don't want REPLACE here */ while ((cc = replace_pop()) > 0) { mb_replace_pop_ins(cc); dec_cursor(); } State = oldState; } /* * Insert bytes popped from the replace stack. "cc" is the first byte. If it * indicates a multi-byte char, pop the other bytes too. */ static void mb_replace_pop_ins(int cc) { int n; char_u buf[MB_MAXBYTES + 1]; int i; int c; if (has_mbyte && (n = MB_BYTE2LEN(cc)) > 1) { buf[0] = cc; for (i = 1; i < n; ++i) buf[i] = replace_pop(); ins_bytes_len(buf, n); } else ins_char(cc); if (enc_utf8) /* Handle composing chars. */ for (;;) { c = replace_pop(); if (c == -1) /* stack empty */ break; if ((n = MB_BYTE2LEN(c)) == 1) { /* Not a multi-byte char, put it back. */ replace_push(c); break; } else { buf[0] = c; for (i = 1; i < n; ++i) buf[i] = replace_pop(); if (utf_iscomposing(utf_ptr2char(buf))) ins_bytes_len(buf, n); else { /* Not a composing char, put it back. */ for (i = n - 1; i >= 0; --i) replace_push(buf[i]); break; } } } } /* * make the replace stack empty * (called when exiting replace mode) */ static void replace_flush(void) { VIM_CLEAR(replace_stack); replace_stack_len = 0; replace_stack_nr = 0; } /* * Handle doing a BS for one character. * cc < 0: replace stack empty, just move cursor * cc == 0: character was inserted, delete it * cc > 0: character was replaced, put cc (first byte of original char) back * and check for more characters to be put back * When "limit_col" is >= 0, don't delete before this column. Matters when * using composing characters, use del_char_after_col() instead of del_char(). */ static void replace_do_bs(int limit_col) { int cc; int orig_len = 0; int ins_len; int orig_vcols = 0; colnr_T start_vcol; char_u *p; int i; int vcol; cc = replace_pop(); if (cc > 0) { if (State & VREPLACE_FLAG) { /* Get the number of screen cells used by the character we are * going to delete. */ getvcol(curwin, &curwin->w_cursor, NULL, &start_vcol, NULL); orig_vcols = chartabsize(ml_get_cursor(), start_vcol); } if (has_mbyte) { (void)del_char_after_col(limit_col); if (State & VREPLACE_FLAG) orig_len = (int)STRLEN(ml_get_cursor()); replace_push(cc); } else { pchar_cursor(cc); if (State & VREPLACE_FLAG) orig_len = (int)STRLEN(ml_get_cursor()) - 1; } replace_pop_ins(); if (State & VREPLACE_FLAG) { /* Get the number of screen cells used by the inserted characters */ p = ml_get_cursor(); ins_len = (int)STRLEN(p) - orig_len; vcol = start_vcol; for (i = 0; i < ins_len; ++i) { vcol += chartabsize(p + i, vcol); i += (*mb_ptr2len)(p)-1; } vcol -= start_vcol; /* Delete spaces that were inserted after the cursor to keep the * text aligned. */ curwin->w_cursor.col += ins_len; while (vcol > orig_vcols && gchar_cursor() == ' ') { del_char(FALSE); ++orig_vcols; } curwin->w_cursor.col -= ins_len; } // mark the buffer as changed and prepare for displaying changed_bytes(curwin->w_cursor.lnum, curwin->w_cursor.col); } else if (cc == 0) (void)del_char_after_col(limit_col); } #if defined(FEAT_RIGHTLEFT) || defined(PROTO) /* * Map Hebrew keyboard when in hkmap mode. */ int hkmap(int c) { if (p_hkmapp) /* phonetic mapping, by Ilya Dogolazky */ { enum { hALEF = 0, BET, GIMEL, DALET, HEI, VAV, ZAIN, HET, TET, IUD, KAFsofit, hKAF, LAMED, MEMsofit, MEM, NUNsofit, NUN, SAMEH, AIN, PEIsofit, PEI, ZADIsofit, ZADI, KOF, RESH, hSHIN, TAV }; static char_u map[26] = { (char_u)hALEF /*a*/, (char_u)BET /*b*/, (char_u)hKAF /*c*/, (char_u)DALET /*d*/, (char_u)-1 /*e*/, (char_u)PEIsofit /*f*/, (char_u)GIMEL /*g*/, (char_u)HEI /*h*/, (char_u)IUD /*i*/, (char_u)HET /*j*/, (char_u)KOF /*k*/, (char_u)LAMED /*l*/, (char_u)MEM /*m*/, (char_u)NUN /*n*/, (char_u)SAMEH /*o*/, (char_u)PEI /*p*/, (char_u)-1 /*q*/, (char_u)RESH /*r*/, (char_u)ZAIN /*s*/, (char_u)TAV /*t*/, (char_u)TET /*u*/, (char_u)VAV /*v*/, (char_u)hSHIN /*w*/, (char_u)-1 /*x*/, (char_u)AIN /*y*/, (char_u)ZADI /*z*/}; if (c == 'N' || c == 'M' || c == 'P' || c == 'C' || c == 'Z') return (int)(map[CharOrd(c)] - 1 + p_aleph); /* '-1'='sofit' */ else if (c == 'x') return 'X'; else if (c == 'q') return '\''; /* {geresh}={'} */ else if (c == 246) return ' '; /* \"o --> ' ' for a german keyboard */ else if (c == 228) return ' '; /* \"a --> ' ' -- / -- */ else if (c == 252) return ' '; /* \"u --> ' ' -- / -- */ #ifdef EBCDIC else if (islower(c)) #else /* NOTE: islower() does not do the right thing for us on Linux so we * do this the same was as 5.7 and previous, so it works correctly on * all systems. Specifically, the e.g. Delete and Arrow keys are * munged and won't work if e.g. searching for Hebrew text. */ else if (c >= 'a' && c <= 'z') #endif return (int)(map[CharOrdLow(c)] + p_aleph); else return c; } else { switch (c) { case '`': return ';'; case '/': return '.'; case '\'': return ','; case 'q': return '/'; case 'w': return '\''; /* Hebrew letters - set offset from 'a' */ case ',': c = '{'; break; case '.': c = 'v'; break; case ';': c = 't'; break; default: { static char str[] = "zqbcxlsjphmkwonu ydafe rig"; #ifdef EBCDIC /* see note about islower() above */ if (!islower(c)) #else if (c < 'a' || c > 'z') #endif return c; c = str[CharOrdLow(c)]; break; } } return (int)(CharOrdLow(c) + p_aleph); } } #endif /* * CTRL-G commands in Insert mode. */ static void ins_ctrl_g_nonblocking(int c) { switch (c) { /* CTRL-G k and CTRL-G : cursor up to Insstart.col */ case K_UP: case Ctrl_K: case 'k': ins_up(TRUE); break; /* CTRL-G j and CTRL-G : cursor down to Insstart.col */ case K_DOWN: case Ctrl_J: case 'j': ins_down(TRUE); break; /* CTRL-G u: start new undoable edit */ case 'u': u_sync(TRUE); ins_need_undo = TRUE; /* Need to reset Insstart, esp. because a BS that joins * a line to the previous one must save for undo. */ update_Insstart_orig = FALSE; Insstart = curwin->w_cursor; break; /* CTRL-G U: do not break undo with the next char */ case 'U': /* Allow one left/right cursor movement with the next char, * without breaking undo. */ dont_sync_undo = MAYBE; break; /* Unknown CTRL-G command, reserved for future expansion. */ default: vim_beep(BO_CTRLG); } } /* * CTRL-G commands in Insert mode. */ static void ins_ctrl_g(void) { int c; /* * Don't map the second key. This also prevents the mode message to be * deleted when ESC is hit. */ ++no_mapping; c = plain_vgetc(); --no_mapping; ins_ctrl_g_nonblocking(c); } /* * CTRL-^ in Insert mode. */ static void ins_ctrl_hat(void) { if (map_to_exists_mode((char_u *)"", LANGMAP, FALSE)) { /* ":lmap" mappings exists, Toggle use of ":lmap" mappings. */ if (State & LANGMAP) { curbuf->b_p_iminsert = B_IMODE_NONE; State &= ~LANGMAP; } else { curbuf->b_p_iminsert = B_IMODE_LMAP; State |= LANGMAP; } } set_iminsert_global(); #if defined(FEAT_KEYMAP) /* Show/unshow value of 'keymap' in status lines. */ status_redraw_curbuf(); #endif } /* * Handle ESC in insert mode. * Returns TRUE when leaving insert mode, FALSE when going to repeat the * insert. */ static int ins_esc(long *count, int cmdchar, int nomove) /* don't move cursor */ { int temp; static int disabled_redraw = FALSE; temp = curwin->w_cursor.col; if (disabled_redraw) { --RedrawingDisabled; disabled_redraw = FALSE; } if (!arrow_used) { /* * Don't append the ESC for "r" and "grx". * When 'insertmode' is set only CTRL-L stops Insert mode. Needed for * when "count" is non-zero. */ if (cmdchar != 'r' && cmdchar != 'v') AppendToRedobuff(p_im ? (char_u *)"\014" : ESC_STR); /* * Repeating insert may take a long time. Check for * interrupt now and then. */ if (*count > 0) { line_breakcheck(); if (got_int) *count = 0; } if (--*count > 0) /* repeat what was typed */ { /* Vi repeats the insert without replacing characters. */ if (vim_strchr(p_cpo, CPO_REPLCNT) != NULL) State &= ~REPLACE_FLAG; (void)start_redo_ins(); if (cmdchar == 'r' || cmdchar == 'v') stuffRedoReadbuff(ESC_STR); /* no ESC in redo buffer */ ++RedrawingDisabled; disabled_redraw = TRUE; return FALSE; /* repeat the insert */ } stop_insert(&curwin->w_cursor, TRUE, nomove); undisplay_dollar(); } /* When an autoindent was removed, curswant stays after the * indent */ if (restart_edit == NUL && (colnr_T)temp == curwin->w_cursor.col) curwin->w_set_curswant = TRUE; /* Remember the last Insert position in the '^ mark. */ if (!cmdmod.keepjumps) curbuf->b_last_insert = curwin->w_cursor; /* * The cursor should end up on the last inserted character. * Don't do it for CTRL-O, unless past the end of the line. */ if (!nomove && (curwin->w_cursor.col != 0 || curwin->w_cursor.coladd > 0) && (restart_edit == NUL || (gchar_cursor() == NUL && !VIsual_active)) #ifdef FEAT_RIGHTLEFT && !revins_on #endif ) { if (curwin->w_cursor.coladd > 0 || ve_flags == VE_ALL) { oneleft(); if (restart_edit != NUL) ++curwin->w_cursor.coladd; } else { --curwin->w_cursor.col; /* Correct cursor for multi-byte character. */ if (has_mbyte) mb_adjust_cursor(); } } State = NORMAL; /* need to position cursor again (e.g. when on a TAB ) */ changed_cline_bef_curs(); if (!p_ek) /* Re-enable bracketed paste mode. */ out_str(T_BE); return TRUE; /* exit Insert mode */ } #ifdef FEAT_RIGHTLEFT /* * Toggle language: hkmap and revins_on. * Move to end of reverse inserted text. */ static void ins_ctrl_(void) { if (revins_on && revins_chars && revins_scol >= 0) { while (gchar_cursor() != NUL && revins_chars--) ++curwin->w_cursor.col; } p_ri = !p_ri; revins_on = (State == INSERT && p_ri); if (revins_on) { revins_scol = curwin->w_cursor.col; revins_legal++; revins_chars = 0; undisplay_dollar(); } else revins_scol = -1; p_hkmap = curwin->w_p_rl ^ p_ri; // be consistent! } #endif /* * If 'keymodel' contains "startsel", may start selection. * Returns TRUE when a CTRL-O and other keys stuffed. */ static int ins_start_select(int c) { if (km_startsel) switch (c) { case K_KHOME: case K_KEND: case K_PAGEUP: case K_KPAGEUP: case K_PAGEDOWN: case K_KPAGEDOWN: #ifdef MACOS_X case K_LEFT: case K_RIGHT: case K_UP: case K_DOWN: case K_END: case K_HOME: #endif if (!(mod_mask & MOD_MASK_SHIFT)) break; /* FALLTHROUGH */ case K_S_LEFT: case K_S_RIGHT: case K_S_UP: case K_S_DOWN: case K_S_END: case K_S_HOME: /* Start selection right away, the cursor can move with * CTRL-O when beyond the end of the line. */ start_selection(); /* Execute the key in (insert) Select mode. */ stuffcharReadbuff(Ctrl_O); if (mod_mask) { char_u buf[4]; buf[0] = K_SPECIAL; buf[1] = KS_MODIFIER; buf[2] = mod_mask; buf[3] = NUL; stuffReadbuff(buf); } stuffcharReadbuff(c); return TRUE; } return FALSE; } /* * key in Insert mode: toggle insert/replace mode. */ static void ins_insert(int replaceState) { #ifdef FEAT_EVAL set_vim_var_string(VV_INSERTMODE, (char_u *)((State & REPLACE_FLAG) ? "i" : replaceState == VREPLACE ? "v" : "r"), 1); #endif ins_apply_autocmds(EVENT_INSERTCHANGE); if (State & REPLACE_FLAG) State = INSERT | (State & LANGMAP); else State = replaceState | (State & LANGMAP); AppendCharToRedobuff(K_INS); } /* * Pressed CTRL-O in Insert mode. */ static void ins_ctrl_o(void) { if (State & VREPLACE_FLAG) restart_edit = 'V'; else if (State & REPLACE_FLAG) restart_edit = 'R'; else restart_edit = 'I'; if (virtual_active()) ins_at_eol = FALSE; /* cursor always keeps its column */ else ins_at_eol = (gchar_cursor() == NUL); } /* * If the cursor is on an indent, ^T/^D insert/delete one * shiftwidth. Otherwise ^T/^D behave like a "<<" or ">>". * Always round the indent to 'shiftwidth', this is compatible * with vi. But vi only supports ^T and ^D after an * autoindent, we support it everywhere. */ static void ins_shift(int c, int lastc) { if (stop_arrow() == FAIL) return; AppendCharToRedobuff(c); /* * 0^D and ^^D: remove all indent. */ if (c == Ctrl_D && (lastc == '0' || lastc == '^') && curwin->w_cursor.col > 0) { --curwin->w_cursor.col; (void)del_char(FALSE); /* delete the '^' or '0' */ /* In Replace mode, restore the characters that '^' or '0' replaced. */ if (State & REPLACE_FLAG) replace_pop_ins(); if (lastc == '^') old_indent = get_indent(); /* remember curr. indent */ change_indent(INDENT_SET, 0, TRUE, 0, TRUE); } else change_indent(c == Ctrl_D ? INDENT_DEC : INDENT_INC, 0, TRUE, 0, TRUE); if (did_ai && *skipwhite(ml_get_curline()) != NUL) did_ai = FALSE; #ifdef FEAT_SMARTINDENT did_si = FALSE; can_si = FALSE; can_si_back = FALSE; #endif } static void ins_del(void) { int temp; if (stop_arrow() == FAIL) return; if (gchar_cursor() == NUL) /* delete newline */ { temp = curwin->w_cursor.col; if (!can_bs(BS_EOL) /* only if "eol" included */ || do_join(2, FALSE, TRUE, FALSE, FALSE) == FAIL) vim_beep(BO_BS); else { curwin->w_cursor.col = temp; /* Adjust orig_line_count in case more lines have been deleted than * have been added. That makes sure, that open_line() later * can access all buffer lines correctly */ if (State & VREPLACE_FLAG && orig_line_count > curbuf->b_ml.ml_line_count) orig_line_count = curbuf->b_ml.ml_line_count; } } else if (del_char(FALSE) == FAIL) /* delete char under cursor */ vim_beep(BO_BS); did_ai = FALSE; #ifdef FEAT_SMARTINDENT did_si = FALSE; can_si = FALSE; can_si_back = FALSE; #endif AppendCharToRedobuff(K_DEL); } /* * Delete one character for ins_bs(). */ static void ins_bs_one(colnr_T *vcolp) { dec_cursor(); getvcol(curwin, &curwin->w_cursor, vcolp, NULL, NULL); if (State & REPLACE_FLAG) { /* Don't delete characters before the insert point when in * Replace mode */ if (curwin->w_cursor.lnum != Insstart.lnum || curwin->w_cursor.col >= Insstart.col) replace_do_bs(-1); } else (void)del_char(FALSE); } /* * Handle Backspace, delete-word and delete-line in Insert mode. * Return TRUE when backspace was actually used. */ static int ins_bs(int c, int mode, int *inserted_space_p) { linenr_T lnum; int cc; int temp = 0; /* init for GCC */ colnr_T save_col; colnr_T mincol; int did_backspace = FALSE; int in_indent; int oldState; int cpc[MAX_MCO]; /* composing characters */ /* * can't delete anything in an empty file * can't backup past first character in buffer * can't backup past starting point unless 'backspace' > 1 * can backup to a previous line if 'backspace' == 0 */ if (BUFEMPTY() || ( #ifdef FEAT_RIGHTLEFT !revins_on && #endif ((curwin->w_cursor.lnum == 1 && curwin->w_cursor.col == 0) || (!can_bs(BS_START) && (arrow_used || (curwin->w_cursor.lnum == Insstart_orig.lnum && curwin->w_cursor.col <= Insstart_orig.col))) || (!can_bs(BS_INDENT) && !arrow_used && ai_col > 0 && curwin->w_cursor.col <= ai_col) || (!can_bs(BS_EOL) && curwin->w_cursor.col == 0)))) { vim_beep(BO_BS); return FALSE; } if (stop_arrow() == FAIL) return FALSE; in_indent = inindent(0); #ifdef FEAT_COMMENTS end_comment_pending = NUL; /* After BS, don't auto-end comment */ #endif #ifdef FEAT_RIGHTLEFT if (revins_on) /* put cursor after last inserted char */ inc_cursor(); #endif /* Virtualedit: * BACKSPACE_CHAR eats a virtual space * BACKSPACE_WORD eats all coladd * BACKSPACE_LINE eats all coladd and keeps going */ if (curwin->w_cursor.coladd > 0) { if (mode == BACKSPACE_CHAR) { --curwin->w_cursor.coladd; return TRUE; } if (mode == BACKSPACE_WORD) { curwin->w_cursor.coladd = 0; return TRUE; } curwin->w_cursor.coladd = 0; } /* * Delete newline! */ if (curwin->w_cursor.col == 0) { lnum = Insstart.lnum; if (curwin->w_cursor.lnum == lnum #ifdef FEAT_RIGHTLEFT || revins_on #endif ) { if (u_save((linenr_T)(curwin->w_cursor.lnum - 2), (linenr_T)(curwin->w_cursor.lnum + 1)) == FAIL) return FALSE; --Insstart.lnum; Insstart.col = (colnr_T)STRLEN(ml_get(Insstart.lnum)); } /* * In replace mode: * cc < 0: NL was inserted, delete it * cc >= 0: NL was replaced, put original characters back */ cc = -1; if (State & REPLACE_FLAG) cc = replace_pop(); /* returns -1 if NL was inserted */ /* * In replace mode, in the line we started replacing, we only move the * cursor. */ if ((State & REPLACE_FLAG) && curwin->w_cursor.lnum <= lnum) { dec_cursor(); } else { if (!(State & VREPLACE_FLAG) || curwin->w_cursor.lnum > orig_line_count) { temp = gchar_cursor(); /* remember current char */ --curwin->w_cursor.lnum; /* When "aw" is in 'formatoptions' we must delete the space at * the end of the line, otherwise the line will be broken * again when auto-formatting. */ if (has_format_option(FO_AUTO) && has_format_option(FO_WHITE_PAR)) { char_u *ptr = ml_get_buf(curbuf, curwin->w_cursor.lnum, TRUE); int len; len = (int)STRLEN(ptr); if (len > 0 && ptr[len - 1] == ' ') ptr[len - 1] = NUL; } (void)do_join(2, FALSE, FALSE, FALSE, FALSE); if (temp == NUL && gchar_cursor() != NUL) inc_cursor(); } else dec_cursor(); /* * In REPLACE mode we have to put back the text that was replaced * by the NL. On the replace stack is first a NUL-terminated * sequence of characters that were deleted and then the * characters that NL replaced. */ if (State & REPLACE_FLAG) { /* * Do the next ins_char() in NORMAL state, to * prevent ins_char() from replacing characters and * avoiding showmatch(). */ oldState = State; State = NORMAL; /* * restore characters (blanks) deleted after cursor */ while (cc > 0) { save_col = curwin->w_cursor.col; mb_replace_pop_ins(cc); curwin->w_cursor.col = save_col; cc = replace_pop(); } /* restore the characters that NL replaced */ replace_pop_ins(); State = oldState; } } did_ai = FALSE; } else { /* * Delete character(s) before the cursor. */ #ifdef FEAT_RIGHTLEFT if (revins_on) /* put cursor on last inserted char */ dec_cursor(); #endif mincol = 0; /* keep indent */ if (mode == BACKSPACE_LINE && (curbuf->b_p_ai) #ifdef FEAT_RIGHTLEFT && !revins_on #endif ) { save_col = curwin->w_cursor.col; beginline(BL_WHITE); if (curwin->w_cursor.col < save_col) mincol = curwin->w_cursor.col; curwin->w_cursor.col = save_col; } /* * Handle deleting one 'shiftwidth' or 'softtabstop'. */ if (mode == BACKSPACE_CHAR && ((p_sta && in_indent) || ((get_sts_value() != 0 #ifdef FEAT_VARTABS || tabstop_count(curbuf->b_p_vsts_array) #endif ) && curwin->w_cursor.col > 0 && (*(ml_get_cursor() - 1) == TAB || (*(ml_get_cursor() - 1) == ' ' && (!*inserted_space_p || arrow_used)))))) { int ts; colnr_T vcol; colnr_T want_vcol; colnr_T start_vcol; *inserted_space_p = FALSE; /* Compute the virtual column where we want to be. Since * 'showbreak' may get in the way, need to get the last column of * the previous character. */ getvcol(curwin, &curwin->w_cursor, &vcol, NULL, NULL); start_vcol = vcol; dec_cursor(); getvcol(curwin, &curwin->w_cursor, NULL, NULL, &want_vcol); inc_cursor(); #ifdef FEAT_VARTABS if (p_sta && in_indent) { ts = (int)get_sw_value(curbuf); want_vcol = (want_vcol / ts) * ts; } else want_vcol = tabstop_start(want_vcol, get_sts_value(), curbuf->b_p_vsts_array); #else if (p_sta && in_indent) ts = (int)get_sw_value(curbuf); else ts = (int)get_sts_value(); want_vcol = (want_vcol / ts) * ts; #endif /* delete characters until we are at or before want_vcol */ while (vcol > want_vcol && (cc = *(ml_get_cursor() - 1), VIM_ISWHITE(cc))) ins_bs_one(&vcol); /* insert extra spaces until we are at want_vcol */ while (vcol < want_vcol) { /* Remember the first char we inserted */ if (curwin->w_cursor.lnum == Insstart_orig.lnum && curwin->w_cursor.col < Insstart_orig.col) Insstart_orig.col = curwin->w_cursor.col; if (State & VREPLACE_FLAG) ins_char(' '); else { ins_str((char_u *)" "); if ((State & REPLACE_FLAG)) replace_push(NUL); } getvcol(curwin, &curwin->w_cursor, &vcol, NULL, NULL); } /* If we are now back where we started delete one character. Can * happen when using 'sts' and 'linebreak'. */ if (vcol >= start_vcol) ins_bs_one(&vcol); } /* * Delete upto starting point, start of line or previous word. */ else { int cclass = 0, prev_cclass = 0; if (has_mbyte) cclass = mb_get_class(ml_get_cursor()); do { #ifdef FEAT_RIGHTLEFT if (!revins_on) /* put cursor on char to be deleted */ #endif dec_cursor(); cc = gchar_cursor(); /* look multi-byte character class */ if (has_mbyte) { prev_cclass = cclass; cclass = mb_get_class(ml_get_cursor()); } /* start of word? */ if (mode == BACKSPACE_WORD && !vim_isspace(cc)) { mode = BACKSPACE_WORD_NOT_SPACE; temp = vim_iswordc(cc); } /* end of word? */ else if (mode == BACKSPACE_WORD_NOT_SPACE && ((vim_isspace(cc) || vim_iswordc(cc) != temp) || prev_cclass != cclass)) { #ifdef FEAT_RIGHTLEFT if (!revins_on) #endif inc_cursor(); #ifdef FEAT_RIGHTLEFT else if (State & REPLACE_FLAG) dec_cursor(); #endif break; } if (State & REPLACE_FLAG) replace_do_bs(-1); else { if (enc_utf8 && p_deco) (void)utfc_ptr2char(ml_get_cursor(), cpc); (void)del_char(FALSE); /* * If there are combining characters and 'delcombine' is set * move the cursor back. Don't back up before the base * character. */ if (enc_utf8 && p_deco && cpc[0] != NUL) inc_cursor(); #ifdef FEAT_RIGHTLEFT if (revins_chars) { revins_chars--; revins_legal++; } if (revins_on && gchar_cursor() == NUL) break; #endif } /* Just a single backspace?: */ if (mode == BACKSPACE_CHAR) break; } while ( #ifdef FEAT_RIGHTLEFT revins_on || #endif (curwin->w_cursor.col > mincol && (curwin->w_cursor.lnum != Insstart_orig.lnum || curwin->w_cursor.col != Insstart_orig.col))); } did_backspace = TRUE; } #ifdef FEAT_SMARTINDENT did_si = FALSE; can_si = FALSE; can_si_back = FALSE; #endif if (curwin->w_cursor.col <= 1) did_ai = FALSE; /* * It's a little strange to put backspaces into the redo * buffer, but it makes auto-indent a lot easier to deal * with. */ AppendCharToRedobuff(c); /* If deleted before the insertion point, adjust it */ if (curwin->w_cursor.lnum == Insstart_orig.lnum && curwin->w_cursor.col < Insstart_orig.col) Insstart_orig.col = curwin->w_cursor.col; /* vi behaviour: the cursor moves backward but the character that * was there remains visible * Vim behaviour: the cursor moves backward and the character that * was there is erased from the screen. * We can emulate the vi behaviour by pretending there is a dollar * displayed even when there isn't. * --pkv Sun Jan 19 01:56:40 EST 2003 */ if (vim_strchr(p_cpo, CPO_BACKSPACE) != NULL && dollar_vcol == -1) dollar_vcol = curwin->w_virtcol; #ifdef FEAT_FOLDING /* When deleting a char the cursor line must never be in a closed fold. * E.g., when 'foldmethod' is indent and deleting the first non-white * char before a Tab. */ if (did_backspace) foldOpenCursor(); #endif return did_backspace; } /* * Handle receiving P_PS: start paste mode. Inserts the following text up to * P_PE literally. * When "drop" is TRUE then consume the text and drop it. */ int bracketed_paste(paste_mode_T mode, int drop, garray_T *gap) { int c; char_u buf[NUMBUFLEN + MB_MAXBYTES]; int idx = 0; char_u *end = find_termcode((char_u *)"PE"); int ret_char = -1; int save_allow_keys = allow_keys; int save_paste = p_paste; /* If the end code is too long we can't detect it, read everything. */ if (STRLEN(end) >= NUMBUFLEN) end = NULL; ++no_mapping; allow_keys = 0; if (!p_paste) // Also have the side effects of setting 'paste' to make it work much // faster. set_option_value((char_u *)"paste", TRUE, NULL, 0); for (;;) { // When the end is not defined read everything there is. if (end == NULL && vpeekc() == NUL) break; do c = vgetc(); while (c == K_IGNORE || c == K_VER_SCROLLBAR || c == K_HOR_SCROLLBAR); if (c == NUL || got_int) // When CTRL-C was encountered the typeahead will be flushed and we // won't get the end sequence. break; if (has_mbyte) idx += (*mb_char2bytes)(c, buf + idx); else buf[idx++] = c; buf[idx] = NUL; if (end != NULL && STRNCMP(buf, end, idx) == 0) { if (end[idx] == NUL) break; /* Found the end of paste code. */ continue; } if (!drop) { switch (mode) { case PASTE_CMDLINE: put_on_cmdline(buf, idx, TRUE); break; case PASTE_EX: if (gap != NULL && ga_grow(gap, idx) == OK) { mch_memmove((char *)gap->ga_data + gap->ga_len, buf, (size_t)idx); gap->ga_len += idx; } break; case PASTE_INSERT: if (stop_arrow() == OK) { c = buf[0]; if (idx == 1 && (c == CAR || c == K_KENTER || c == NL)) ins_eol(c); else { ins_char_bytes(buf, idx); AppendToRedobuffLit(buf, idx); } } break; case PASTE_ONE_CHAR: if (ret_char == -1) { if (has_mbyte) ret_char = (*mb_ptr2char)(buf); else ret_char = buf[0]; } break; } } idx = 0; } --no_mapping; allow_keys = save_allow_keys; if (!save_paste) set_option_value((char_u *)"paste", FALSE, NULL, 0); return ret_char; } static void ins_left(void) { pos_T tpos; int end_change = dont_sync_undo == FALSE; // end undoable change #ifdef FEAT_FOLDING if ((fdo_flags & FDO_HOR) && KeyTyped) foldOpenCursor(); #endif undisplay_dollar(); tpos = curwin->w_cursor; if (oneleft() == OK) { { start_arrow_with_change(&tpos, end_change); if (!end_change) AppendCharToRedobuff(K_LEFT); } #ifdef FEAT_RIGHTLEFT /* If exit reversed string, position is fixed */ if (revins_scol != -1 && (int)curwin->w_cursor.col >= revins_scol) revins_legal++; revins_chars++; #endif } /* * if 'whichwrap' set for cursor in insert mode may go to * previous line */ else if (vim_strchr(p_ww, '[') != NULL && curwin->w_cursor.lnum > 1) { /* always break undo when moving upwards/downwards, else undo may break */ start_arrow(&tpos); --(curwin->w_cursor.lnum); coladvance((colnr_T)MAXCOL); curwin->w_set_curswant = TRUE; /* so we stay at the end */ } else vim_beep(BO_CRSR); dont_sync_undo = FALSE; } static void ins_home(int c) { pos_T tpos; #ifdef FEAT_FOLDING if ((fdo_flags & FDO_HOR) && KeyTyped) foldOpenCursor(); #endif undisplay_dollar(); tpos = curwin->w_cursor; if (c == K_C_HOME) curwin->w_cursor.lnum = 1; curwin->w_cursor.col = 0; curwin->w_cursor.coladd = 0; curwin->w_curswant = 0; start_arrow(&tpos); } static void ins_end(int c) { pos_T tpos; #ifdef FEAT_FOLDING if ((fdo_flags & FDO_HOR) && KeyTyped) foldOpenCursor(); #endif undisplay_dollar(); tpos = curwin->w_cursor; if (c == K_C_END) curwin->w_cursor.lnum = curbuf->b_ml.ml_line_count; coladvance((colnr_T)MAXCOL); curwin->w_curswant = MAXCOL; start_arrow(&tpos); } static void ins_s_left() { int end_change = dont_sync_undo == FALSE; // end undoable change #ifdef FEAT_FOLDING if ((fdo_flags & FDO_HOR) && KeyTyped) foldOpenCursor(); #endif undisplay_dollar(); if (curwin->w_cursor.lnum > 1 || curwin->w_cursor.col > 0) { start_arrow_with_change(&curwin->w_cursor, end_change); if (!end_change) AppendCharToRedobuff(K_S_LEFT); (void)bck_word(1L, FALSE, FALSE); curwin->w_set_curswant = TRUE; } else vim_beep(BO_CRSR); dont_sync_undo = FALSE; } static void ins_right(void) { int end_change = dont_sync_undo == FALSE; // end undoable change #ifdef FEAT_FOLDING if ((fdo_flags & FDO_HOR) && KeyTyped) foldOpenCursor(); #endif undisplay_dollar(); if (gchar_cursor() != NUL || virtual_active()) { start_arrow_with_change(&curwin->w_cursor, end_change); if (!end_change) AppendCharToRedobuff(K_RIGHT); curwin->w_set_curswant = TRUE; if (virtual_active()) oneright(); else { if (has_mbyte) curwin->w_cursor.col += (*mb_ptr2len)(ml_get_cursor()); else ++curwin->w_cursor.col; } #ifdef FEAT_RIGHTLEFT revins_legal++; if (revins_chars) revins_chars--; #endif } /* if 'whichwrap' set for cursor in insert mode, may move the * cursor to the next line */ else if (vim_strchr(p_ww, ']') != NULL && curwin->w_cursor.lnum < curbuf->b_ml.ml_line_count) { start_arrow(&curwin->w_cursor); curwin->w_set_curswant = TRUE; ++curwin->w_cursor.lnum; curwin->w_cursor.col = 0; } else vim_beep(BO_CRSR); dont_sync_undo = FALSE; } static void ins_s_right() { int end_change = dont_sync_undo == FALSE; // end undoable change #ifdef FEAT_FOLDING if ((fdo_flags & FDO_HOR) && KeyTyped) foldOpenCursor(); #endif undisplay_dollar(); if (curwin->w_cursor.lnum < curbuf->b_ml.ml_line_count || gchar_cursor() != NUL) { start_arrow_with_change(&curwin->w_cursor, end_change); if (!end_change) AppendCharToRedobuff(K_S_RIGHT); (void)fwd_word(1L, FALSE, 0); curwin->w_set_curswant = TRUE; } else vim_beep(BO_CRSR); dont_sync_undo = FALSE; } static void ins_up(int startcol) /* when TRUE move to Insstart.col */ { pos_T tpos; linenr_T old_topline = curwin->w_topline; #ifdef FEAT_DIFF int old_topfill = curwin->w_topfill; #endif undisplay_dollar(); tpos = curwin->w_cursor; if (cursor_up(1L, TRUE) == OK) { if (startcol) coladvance(getvcol_nolist(&Insstart)); if (old_topline != curwin->w_topline #ifdef FEAT_DIFF || old_topfill != curwin->w_topfill #endif ) redraw_later(VALID); start_arrow(&tpos); } else vim_beep(BO_CRSR); } static void ins_pageup(void) { pos_T tpos; undisplay_dollar(); if (mod_mask & MOD_MASK_CTRL) { /* : tab page back */ if (first_tabpage->tp_next != NULL) { start_arrow(&curwin->w_cursor); goto_tabpage(-1); } return; } tpos = curwin->w_cursor; if (onepage(BACKWARD, 1L) == OK) { start_arrow(&tpos); } else vim_beep(BO_CRSR); } static void ins_down(int startcol) /* when TRUE move to Insstart.col */ { pos_T tpos; linenr_T old_topline = curwin->w_topline; #ifdef FEAT_DIFF int old_topfill = curwin->w_topfill; #endif undisplay_dollar(); tpos = curwin->w_cursor; if (cursor_down(1L, TRUE) == OK) { if (startcol) coladvance(getvcol_nolist(&Insstart)); if (old_topline != curwin->w_topline #ifdef FEAT_DIFF || old_topfill != curwin->w_topfill #endif ) redraw_later(VALID); start_arrow(&tpos); } else vim_beep(BO_CRSR); } static void ins_pagedown(void) { pos_T tpos; undisplay_dollar(); if (mod_mask & MOD_MASK_CTRL) { /* : tab page forward */ if (first_tabpage->tp_next != NULL) { start_arrow(&curwin->w_cursor); goto_tabpage(0); } return; } tpos = curwin->w_cursor; if (onepage(FORWARD, 1L) == OK) { start_arrow(&tpos); } else vim_beep(BO_CRSR); } /* * Handle TAB in Insert or Replace mode. * Return TRUE when the TAB needs to be inserted like a normal character. */ static int ins_tab(void) { int ind; int i; int temp; if (Insstart_blank_vcol == MAXCOL && curwin->w_cursor.lnum == Insstart.lnum) Insstart_blank_vcol = get_nolist_virtcol(); if (echeck_abbr(TAB + ABBR_OFF)) return FALSE; ind = inindent(0); /* * When nothing special, insert TAB like a normal character. */ if (!curbuf->b_p_et #ifdef FEAT_VARTABS && !(p_sta && ind /* These five lines mean 'tabstop' != 'shiftwidth' */ && ((tabstop_count(curbuf->b_p_vts_array) > 1) || (tabstop_count(curbuf->b_p_vts_array) == 1 && tabstop_first(curbuf->b_p_vts_array) != get_sw_value(curbuf)) || (tabstop_count(curbuf->b_p_vts_array) == 0 && curbuf->b_p_ts != get_sw_value(curbuf)))) && tabstop_count(curbuf->b_p_vsts_array) == 0 #else && !(p_sta && ind && curbuf->b_p_ts != get_sw_value(curbuf)) #endif && get_sts_value() == 0) return TRUE; if (stop_arrow() == FAIL) return TRUE; did_ai = FALSE; #ifdef FEAT_SMARTINDENT did_si = FALSE; can_si = FALSE; can_si_back = FALSE; #endif AppendToRedobuff((char_u *)"\t"); #ifdef FEAT_VARTABS if (p_sta && ind) /* insert tab in indent, use 'shiftwidth' */ { temp = (int)get_sw_value(curbuf); temp -= get_nolist_virtcol() % temp; } else if (tabstop_count(curbuf->b_p_vsts_array) > 0 || curbuf->b_p_sts != 0) /* use 'softtabstop' when set */ temp = tabstop_padding(get_nolist_virtcol(), get_sts_value(), curbuf->b_p_vsts_array); else /* otherwise use 'tabstop' */ temp = tabstop_padding(get_nolist_virtcol(), curbuf->b_p_ts, curbuf->b_p_vts_array); #else if (p_sta && ind) /* insert tab in indent, use 'shiftwidth' */ temp = (int)get_sw_value(curbuf); else if (curbuf->b_p_sts != 0) /* use 'softtabstop' when set */ temp = (int)get_sts_value(); else /* otherwise use 'tabstop' */ temp = (int)curbuf->b_p_ts; temp -= get_nolist_virtcol() % temp; #endif /* * Insert the first space with ins_char(). It will delete one char in * replace mode. Insert the rest with ins_str(); it will not delete any * chars. For VREPLACE mode, we use ins_char() for all characters. */ ins_char(' '); while (--temp > 0) { if (State & VREPLACE_FLAG) ins_char(' '); else { ins_str((char_u *)" "); if (State & REPLACE_FLAG) /* no char replaced */ replace_push(NUL); } } /* * When 'expandtab' not set: Replace spaces by TABs where possible. */ #ifdef FEAT_VARTABS if (!curbuf->b_p_et && (tabstop_count(curbuf->b_p_vsts_array) > 0 || get_sts_value() > 0 || (p_sta && ind))) #else if (!curbuf->b_p_et && (get_sts_value() || (p_sta && ind))) #endif { char_u *ptr; char_u *saved_line = NULL; /* init for GCC */ pos_T pos; pos_T fpos; pos_T *cursor; colnr_T want_vcol, vcol; int change_col = -1; int save_list = curwin->w_p_list; /* * Get the current line. For VREPLACE mode, don't make real changes * yet, just work on a copy of the line. */ if (State & VREPLACE_FLAG) { pos = curwin->w_cursor; cursor = &pos; saved_line = vim_strsave(ml_get_curline()); if (saved_line == NULL) return FALSE; ptr = saved_line + pos.col; } else { ptr = ml_get_cursor(); cursor = &curwin->w_cursor; } /* When 'L' is not in 'cpoptions' a tab always takes up 'ts' spaces. */ if (vim_strchr(p_cpo, CPO_LISTWM) == NULL) curwin->w_p_list = FALSE; /* Find first white before the cursor */ fpos = curwin->w_cursor; while (fpos.col > 0 && VIM_ISWHITE(ptr[-1])) { --fpos.col; --ptr; } /* In Replace mode, don't change characters before the insert point. */ if ((State & REPLACE_FLAG) && fpos.lnum == Insstart.lnum && fpos.col < Insstart.col) { ptr += Insstart.col - fpos.col; fpos.col = Insstart.col; } /* compute virtual column numbers of first white and cursor */ getvcol(curwin, &fpos, &vcol, NULL, NULL); getvcol(curwin, cursor, &want_vcol, NULL, NULL); /* Use as many TABs as possible. Beware of 'breakindent', 'showbreak' * and 'linebreak' adding extra virtual columns. */ while (VIM_ISWHITE(*ptr)) { i = lbr_chartabsize(NULL, (char_u *)"\t", vcol); if (vcol + i > want_vcol) break; if (*ptr != TAB) { *ptr = TAB; if (change_col < 0) { change_col = fpos.col; /* Column of first change */ /* May have to adjust Insstart */ if (fpos.lnum == Insstart.lnum && fpos.col < Insstart.col) Insstart.col = fpos.col; } } ++fpos.col; ++ptr; vcol += i; } if (change_col >= 0) { int repl_off = 0; char_u *line = ptr; /* Skip over the spaces we need. */ while (vcol < want_vcol && *ptr == ' ') { vcol += lbr_chartabsize(line, ptr, vcol); ++ptr; ++repl_off; } if (vcol > want_vcol) { /* Must have a char with 'showbreak' just before it. */ --ptr; --repl_off; } fpos.col += repl_off; /* Delete following spaces. */ i = cursor->col - fpos.col; if (i > 0) { STRMOVE(ptr, ptr + i); /* correct replace stack. */ if ((State & REPLACE_FLAG) && !(State & VREPLACE_FLAG)) for (temp = i; --temp >= 0;) replace_join(repl_off); } cursor->col -= i; /* * In VREPLACE mode, we haven't changed anything yet. Do it now by * backspacing over the changed spacing and then inserting the new * spacing. */ if (State & VREPLACE_FLAG) { /* Backspace from real cursor to change_col */ backspace_until_column(change_col); /* Insert each char in saved_line from changed_col to * ptr-cursor */ ins_bytes_len(saved_line + change_col, cursor->col - change_col); } } if (State & VREPLACE_FLAG) vim_free(saved_line); curwin->w_p_list = save_list; } return FALSE; } /* * Handle CR or NL in insert mode. * Return FAIL when out of memory or can't undo. */ int ins_eol(int c) { int i; if (echeck_abbr(c + ABBR_OFF)) return OK; if (stop_arrow() == FAIL) return FAIL; undisplay_dollar(); /* * Strange Vi behaviour: In Replace mode, typing a NL will not delete the * character under the cursor. Only push a NUL on the replace stack, * nothing to put back when the NL is deleted. */ if ((State & REPLACE_FLAG) && !(State & VREPLACE_FLAG)) replace_push(NUL); /* * In VREPLACE mode, a NL replaces the rest of the line, and starts * replacing the next line, so we push all of the characters left on the * line onto the replace stack. This is not done here though, it is done * in open_line(). */ /* Put cursor on NUL if on the last char and coladd is 1 (happens after * CTRL-O). */ if (virtual_active() && curwin->w_cursor.coladd > 0) coladvance(getviscol()); #ifdef FEAT_RIGHTLEFT /* NL in reverse insert will always start in the end of * current line. */ if (revins_on) curwin->w_cursor.col += (colnr_T)STRLEN(ml_get_cursor()); #endif AppendToRedobuff(NL_STR); i = open_line(FORWARD, #ifdef FEAT_COMMENTS has_format_option(FO_RET_COMS) ? OPENLINE_DO_COM : #endif 0, old_indent); old_indent = 0; #ifdef FEAT_FOLDING /* When inserting a line the cursor line must never be in a closed fold. */ foldOpenCursor(); #endif return i; } #ifdef FEAT_DIGRAPHS /* * Handle digraph in insert mode. * Returns character still to be inserted, or NUL when nothing remaining to be * done. */ static int ins_digraph(void) { int c; int cc; int did_putchar = FALSE; pc_status = PC_STATUS_UNSET; if (redrawing() && !char_avail()) { /* may need to redraw when no more chars available now */ ins_redraw(FALSE); edit_putchar('?', TRUE); did_putchar = TRUE; } /* don't map the digraph chars. This also prevents the * mode message to be deleted when ESC is hit */ ++no_mapping; ++allow_keys; c = plain_vgetc(); --no_mapping; --allow_keys; if (did_putchar) /* when the line fits in 'columns' the '?' is at the start of the next * line and will not be removed by the redraw */ edit_unputchar(); if (IS_SPECIAL(c) || mod_mask) /* special key */ { insert_special(c, TRUE, FALSE); return NUL; } if (c != ESC) { did_putchar = FALSE; if (redrawing() && !char_avail()) { /* may need to redraw when no more chars available now */ ins_redraw(FALSE); if (char2cells(c) == 1) { ins_redraw(FALSE); edit_putchar(c, TRUE); did_putchar = TRUE; } } ++no_mapping; ++allow_keys; cc = plain_vgetc(); --no_mapping; --allow_keys; if (did_putchar) /* when the line fits in 'columns' the '?' is at the start of the * next line and will not be removed by a redraw */ edit_unputchar(); if (cc != ESC) { AppendToRedobuff((char_u *)CTRL_V_STR); c = getdigraph(c, cc, TRUE); return c; } } return NUL; } #endif /* * Handle CTRL-E and CTRL-Y in Insert mode: copy char from other line. * Returns the char to be inserted, or NUL if none found. */ int ins_copychar(linenr_T lnum) { int c; int temp; char_u *ptr, *prev_ptr; char_u *line; if (lnum < 1 || lnum > curbuf->b_ml.ml_line_count) { vim_beep(BO_COPY); return NUL; } /* try to advance to the cursor column */ temp = 0; line = ptr = ml_get(lnum); prev_ptr = ptr; validate_virtcol(); while ((colnr_T)temp < curwin->w_virtcol && *ptr != NUL) { prev_ptr = ptr; temp += lbr_chartabsize_adv(line, &ptr, (colnr_T)temp); } if ((colnr_T)temp > curwin->w_virtcol) ptr = prev_ptr; c = (*mb_ptr2char)(ptr); if (c == NUL) vim_beep(BO_COPY); return c; } /* * CTRL-Y or CTRL-E typed in Insert mode. */ static int ins_ctrl_ey(int tc) { int c = tc; c = ins_copychar(curwin->w_cursor.lnum + (c == Ctrl_Y ? -1 : 1)); if (c != NUL) { long tw_save; /* The character must be taken literally, insert like it * was typed after a CTRL-V, and pretend 'textwidth' * wasn't set. Digits, 'o' and 'x' are special after a * CTRL-V, don't use it for these. */ if (c < 256 && !isalnum(c)) AppendToRedobuff((char_u *)CTRL_V_STR); /* CTRL-V */ tw_save = curbuf->b_p_tw; curbuf->b_p_tw = -1; insert_special(c, TRUE, FALSE); curbuf->b_p_tw = tw_save; #ifdef FEAT_RIGHTLEFT revins_chars++; revins_legal++; #endif c = Ctrl_V; /* pretend CTRL-V is last character */ auto_format(FALSE, TRUE); } return c; } #ifdef FEAT_SMARTINDENT /* * Try to do some very smart auto-indenting. * Used when inserting a "normal" character. */ static void ins_try_si(int c) { pos_T *pos, old_pos; char_u *ptr; int i; int temp; /* * do some very smart indenting when entering '{' or '}' */ if (((did_si || can_si_back) && c == '{') || (can_si && c == '}')) { /* * for '}' set indent equal to indent of line containing matching '{' */ if (c == '}' && (pos = findmatch(NULL, '{')) != NULL) { old_pos = curwin->w_cursor; /* * If the matching '{' has a ')' immediately before it (ignoring * white-space), then line up with the start of the line * containing the matching '(' if there is one. This handles the * case where an "if (..\n..) {" statement continues over multiple * lines -- webb */ ptr = ml_get(pos->lnum); i = pos->col; if (i > 0) /* skip blanks before '{' */ while (--i > 0 && VIM_ISWHITE(ptr[i])) ; curwin->w_cursor.lnum = pos->lnum; curwin->w_cursor.col = i; if (ptr[i] == ')' && (pos = findmatch(NULL, '(')) != NULL) curwin->w_cursor = *pos; i = get_indent(); curwin->w_cursor = old_pos; if (State & VREPLACE_FLAG) change_indent(INDENT_SET, i, FALSE, NUL, TRUE); else (void)set_indent(i, SIN_CHANGED); } else if (curwin->w_cursor.col > 0) { /* * when inserting '{' after "O" reduce indent, but not * more than indent of previous line */ temp = TRUE; if (c == '{' && can_si_back && curwin->w_cursor.lnum > 1) { old_pos = curwin->w_cursor; i = get_indent(); while (curwin->w_cursor.lnum > 1) { ptr = skipwhite(ml_get(--(curwin->w_cursor.lnum))); /* ignore empty lines and lines starting with '#'. */ if (*ptr != '#' && *ptr != NUL) break; } if (get_indent() >= i) temp = FALSE; curwin->w_cursor = old_pos; } if (temp) shift_line(TRUE, FALSE, 1, TRUE); } } /* * set indent of '#' always to 0 */ if (curwin->w_cursor.col > 0 && can_si && c == '#') { /* remember current indent for next line */ old_indent = get_indent(); (void)set_indent(0, SIN_CHANGED); } /* Adjust ai_col, the char at this position can be deleted. */ if (ai_col > curwin->w_cursor.col) ai_col = curwin->w_cursor.col; } #endif /* * Get the value that w_virtcol would have when 'list' is off. * Unless 'cpo' contains the 'L' flag. */ colnr_T get_nolist_virtcol(void) { // check validity of cursor in current buffer if (curwin->w_buffer == NULL || curwin->w_buffer->b_ml.ml_mfp == NULL || curwin->w_cursor.lnum > curwin->w_buffer->b_ml.ml_line_count) return 0; if (curwin->w_p_list && vim_strchr(p_cpo, CPO_LISTWM) == NULL) return getvcol_nolist(&curwin->w_cursor); validate_virtcol(); return curwin->w_virtcol; } #if defined(FEAT_EVAL) /* * Handle the InsertCharPre autocommand. * "c" is the character that was typed. * Return a pointer to allocated memory with the replacement string. * Return NULL to continue inserting "c". */ static char_u *do_insert_char_pre(int c) { char_u *res; char_u buf[MB_MAXBYTES + 1]; int save_State = State; /* Return quickly when there is nothing to do. */ if (!has_insertcharpre()) return NULL; if (has_mbyte) buf[(*mb_char2bytes)(c, buf)] = NUL; else { buf[0] = c; buf[1] = NUL; } /* Lock the text to avoid weird things from happening. */ ++textlock; set_vim_var_string(VV_CHAR, buf, -1); /* set v:char */ res = NULL; if (ins_apply_autocmds(EVENT_INSERTCHARPRE)) { /* Get the value of v:char. It may be empty or more than one * character. Only use it when changed, otherwise continue with the * original character to avoid breaking autoindent. */ if (STRCMP(buf, get_vim_var_str(VV_CHAR)) != 0) res = vim_strsave(get_vim_var_str(VV_CHAR)); } set_vim_var_string(VV_CHAR, NULL, -1); /* clear v:char */ --textlock; // Restore the State, it may have been changed. State = save_State; return res; } #endif /* * Trigger "event" and take care of fixing undo. */ int ins_apply_autocmds(event_T event) { varnumber_T tick = CHANGEDTICK(curbuf); int r; r = apply_autocmds(event, NULL, NULL, FALSE, curbuf); // If u_savesub() was called then we are not prepared to start // a new line. Call u_save() with no contents to fix that. if (tick != CHANGEDTICK(curbuf)) u_save(curwin->w_cursor.lnum, (linenr_T)(curwin->w_cursor.lnum + 1)); return r; }