IABSD.fr/src/lib/libedit/common.c

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• Author : guenther
  Date : 2023-03-08 04:43:04
  Hash : 5b133f3f
  Message : Delete obsolete /* ARGSUSED */ lint comments. ok miod@ millert@

• lib/libedit/common.c

• /*	$OpenBSD: common.c,v 1.23 2023/03/08 04:43:05 guenther Exp $	*/
  /*	$NetBSD: common.c,v 1.24 2009/12/30 22:37:40 christos Exp $	*/
  
  /*-
   * Copyright (c) 1992, 1993
   *	The Regents of the University of California.  All rights reserved.
   *
   * This code is derived from software contributed to Berkeley by
   * Christos Zoulas of Cornell University.
   *
   * Redistribution and use in source and binary forms, with or without
   * modification, are permitted provided that the following conditions
   * are met:
   * 1. Redistributions of source code must retain the above copyright
   *    notice, this list of conditions and the following disclaimer.
   * 2. Redistributions in binary form must reproduce the above copyright
   *    notice, this list of conditions and the following disclaimer in the
   *    documentation and/or other materials provided with the distribution.
   * 3. Neither the name of the University nor the names of its contributors
   *    may be used to endorse or promote products derived from this software
   *    without specific prior written permission.
   *
   * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
   * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
   * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
   * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
   * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
   * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
   * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
   * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   * SUCH DAMAGE.
   */
  
  #include "config.h"
  
  /*
   * common.c: Common Editor functions
   */
  #include <ctype.h>
  #include <string.h>
  
  #include "el.h"
  #include "common.h"
  #include "fcns.h"
  #include "parse.h"
  #include "vi.h"
  
  /* ed_end_of_file():
   *	Indicate end of file
   *	[^D]
   */
  protected el_action_t
  ed_end_of_file(EditLine *el, wint_t c __attribute__((__unused__)))
  {
  
  	re_goto_bottom(el);
  	*el->el_line.lastchar = '\0';
  	return CC_EOF;
  }
  
  
  /* ed_insert():
   *	Add character to the line
   *	Insert a character [bound to all insert keys]
   */
  protected el_action_t
  ed_insert(EditLine *el, wint_t c)
  {
  	int count = el->el_state.argument;
  
  	if (c == '\0')
  		return CC_ERROR;
  
  	if (el->el_line.lastchar + el->el_state.argument >=
  	    el->el_line.limit) {
  		/* end of buffer space, try to allocate more */
  		if (!ch_enlargebufs(el, (size_t) count))
  			return CC_ERROR;	/* error allocating more */
  	}
  
  	if (count == 1) {
  		if (el->el_state.inputmode == MODE_INSERT
  		    || el->el_line.cursor >= el->el_line.lastchar)
  			c_insert(el, 1);
  
  		*el->el_line.cursor++ = c;
  		re_fastaddc(el);		/* fast refresh for one char. */
  	} else {
  		if (el->el_state.inputmode != MODE_REPLACE_1)
  			c_insert(el, el->el_state.argument);
  
  		while (count-- && el->el_line.cursor < el->el_line.lastchar)
  			*el->el_line.cursor++ = c;
  		re_refresh(el);
  	}
  
  	if (el->el_state.inputmode == MODE_REPLACE_1)
  		return vi_command_mode(el, 0);
  
  	return CC_NORM;
  }
  
  
  /* ed_delete_prev_word():
   *	Delete from beginning of current word to cursor
   *	[M-^?] [^W]
   */
  protected el_action_t
  ed_delete_prev_word(EditLine *el, wint_t c __attribute__((__unused__)))
  {
  	wchar_t *cp, *p, *kp;
  
  	if (el->el_line.cursor == el->el_line.buffer)
  		return CC_ERROR;
  
  	cp = c__prev_word(el->el_line.cursor, el->el_line.buffer,
  	    el->el_state.argument, ce__isword);
  
  	for (p = cp, kp = el->el_chared.c_kill.buf; p < el->el_line.cursor; p++)
  		*kp++ = *p;
  	el->el_chared.c_kill.last = kp;
  
  	c_delbefore(el, (int)(el->el_line.cursor - cp));/* delete before dot */
  	el->el_line.cursor = cp;
  	if (el->el_line.cursor < el->el_line.buffer)
  		el->el_line.cursor = el->el_line.buffer; /* bounds check */
  	return CC_REFRESH;
  }
  
  
  /* ed_delete_next_char():
   *	Delete character under cursor
   *	[^D] [x]
   */
  protected el_action_t
  ed_delete_next_char(EditLine *el, wint_t c)
  {
  #ifdef notdef			/* XXX */
  #define	EL	el->el_line
  	(void) fprintf(el->el_errfile,
  	    "\nD(b: %p(%ls)  c: %p(%ls) last: %p(%ls) limit: %p(%ls)\n",
  	    EL.buffer, EL.buffer, EL.cursor, EL.cursor, EL.lastchar,
  	    EL.lastchar, EL.limit, EL.limit);
  #endif
  	if (el->el_line.cursor == el->el_line.lastchar) {
  			/* if I'm at the end */
  		if (el->el_map.type == MAP_VI) {
  			if (el->el_line.cursor == el->el_line.buffer) {
  				/* if I'm also at the beginning */
  #ifdef KSHVI
  				return CC_ERROR;
  #else
  				/* then do an EOF */
  				terminal_writec(el, c);
  				return CC_EOF;
  #endif
  			} else {
  #ifdef KSHVI
  				el->el_line.cursor--;
  #else
  				return CC_ERROR;
  #endif
  			}
  		} else {
  			if (el->el_line.cursor != el->el_line.buffer)
  				el->el_line.cursor--;
  			else
  				return CC_ERROR;
  		}
  	}
  	c_delafter(el, el->el_state.argument);	/* delete after dot */
  	if (el->el_line.cursor >= el->el_line.lastchar &&
  	    el->el_line.cursor > el->el_line.buffer)
  			/* bounds check */
  		el->el_line.cursor = el->el_line.lastchar - 1;
  	return CC_REFRESH;
  }
  
  
  /* ed_kill_line():
   *	Cut to the end of line
   *	[^K] [^K]
   */
  protected el_action_t
  ed_kill_line(EditLine *el, wint_t c __attribute__((__unused__)))
  {
  	wchar_t *kp, *cp;
  
  	cp = el->el_line.cursor;
  	kp = el->el_chared.c_kill.buf;
  	while (cp < el->el_line.lastchar)
  		*kp++ = *cp++;	/* copy it */
  	el->el_chared.c_kill.last = kp;
  			/* zap! -- delete to end */
  	el->el_line.lastchar = el->el_line.cursor;
  	return CC_REFRESH;
  }
  
  
  /* ed_move_to_end():
   *	Move cursor to the end of line
   *	[^E] [^E]
   */
  protected el_action_t
  ed_move_to_end(EditLine *el, wint_t c __attribute__((__unused__)))
  {
  
  	el->el_line.cursor = el->el_line.lastchar;
  	if (el->el_map.type == MAP_VI) {
  		if (el->el_chared.c_vcmd.action != NOP) {
  			cv_delfini(el);
  			return CC_REFRESH;
  		}
  #ifdef VI_MOVE
  		el->el_line.cursor--;
  #endif
  	}
  	return CC_CURSOR;
  }
  
  
  /* ed_move_to_beg():
   *	Move cursor to the beginning of line
   *	[^A] [^A]
   */
  protected el_action_t
  ed_move_to_beg(EditLine *el, wint_t c __attribute__((__unused__)))
  {
  
  	el->el_line.cursor = el->el_line.buffer;
  
  	if (el->el_map.type == MAP_VI) {
  			/* We want FIRST non space character */
  		while (iswspace(*el->el_line.cursor))
  			el->el_line.cursor++;
  		if (el->el_chared.c_vcmd.action != NOP) {
  			cv_delfini(el);
  			return CC_REFRESH;
  		}
  	}
  	return CC_CURSOR;
  }
  
  
  /* ed_transpose_chars():
   *	Exchange the character to the left of the cursor with the one under it
   *	[^T] [^T]
   */
  protected el_action_t
  ed_transpose_chars(EditLine *el, wint_t c)
  {
  
  	if (el->el_line.cursor < el->el_line.lastchar) {
  		if (el->el_line.lastchar <= &el->el_line.buffer[1])
  			return CC_ERROR;
  		else
  			el->el_line.cursor++;
  	}
  	if (el->el_line.cursor > &el->el_line.buffer[1]) {
  		/* must have at least two chars entered */
  		c = el->el_line.cursor[-2];
  		el->el_line.cursor[-2] = el->el_line.cursor[-1];
  		el->el_line.cursor[-1] = c;
  		return CC_REFRESH;
  	} else
  		return CC_ERROR;
  }
  
  
  /* ed_next_char():
   *	Move to the right one character
   *	[^F] [^F]
   */
  protected el_action_t
  ed_next_char(EditLine *el, wint_t c __attribute__((__unused__)))
  {
  	wchar_t *lim = el->el_line.lastchar;
  
  	if (el->el_line.cursor >= lim ||
  	    (el->el_line.cursor == lim - 1 &&
  	    el->el_map.type == MAP_VI &&
  	    el->el_chared.c_vcmd.action == NOP))
  		return CC_ERROR;
  
  	el->el_line.cursor += el->el_state.argument;
  	if (el->el_line.cursor > lim)
  		el->el_line.cursor = lim;
  
  	if (el->el_map.type == MAP_VI)
  		if (el->el_chared.c_vcmd.action != NOP) {
  			cv_delfini(el);
  			return CC_REFRESH;
  		}
  	return CC_CURSOR;
  }
  
  
  /* ed_prev_word():
   *	Move to the beginning of the current word
   *	[M-b] [b]
   */
  protected el_action_t
  ed_prev_word(EditLine *el, wint_t c __attribute__((__unused__)))
  {
  
  	if (el->el_line.cursor == el->el_line.buffer)
  		return CC_ERROR;
  
  	el->el_line.cursor = c__prev_word(el->el_line.cursor,
  	    el->el_line.buffer,
  	    el->el_state.argument,
  	    ce__isword);
  
  	if (el->el_map.type == MAP_VI)
  		if (el->el_chared.c_vcmd.action != NOP) {
  			cv_delfini(el);
  			return CC_REFRESH;
  		}
  	return CC_CURSOR;
  }
  
  
  /* ed_prev_char():
   *	Move to the left one character
   *	[^B] [^B]
   */
  protected el_action_t
  ed_prev_char(EditLine *el, wint_t c __attribute__((__unused__)))
  {
  
  	if (el->el_line.cursor > el->el_line.buffer) {
  		el->el_line.cursor -= el->el_state.argument;
  		if (el->el_line.cursor < el->el_line.buffer)
  			el->el_line.cursor = el->el_line.buffer;
  
  		if (el->el_map.type == MAP_VI)
  			if (el->el_chared.c_vcmd.action != NOP) {
  				cv_delfini(el);
  				return CC_REFRESH;
  			}
  		return CC_CURSOR;
  	} else
  		return CC_ERROR;
  }
  
  
  /* ed_quoted_insert():
   *	Add the next character typed verbatim
   *	[^V] [^V]
   */
  protected el_action_t
  ed_quoted_insert(EditLine *el, wint_t c)
  {
  	int num;
  
  	tty_quotemode(el);
  	num = el_wgetc(el, &c);
  	tty_noquotemode(el);
  	if (num == 1)
  		return ed_insert(el, c);
  	else
  		return ed_end_of_file(el, 0);
  }
  
  
  /* ed_digit():
   *	Adds to argument or enters a digit
   */
  protected el_action_t
  ed_digit(EditLine *el, wint_t c)
  {
  
  	if (!iswdigit(c))
  		return CC_ERROR;
  
  	if (el->el_state.doingarg) {
  			/* if doing an arg, add this in... */
  		if (el->el_state.lastcmd == EM_UNIVERSAL_ARGUMENT)
  			el->el_state.argument = c - '0';
  		else {
  			if (el->el_state.argument > 1000000)
  				return CC_ERROR;
  			el->el_state.argument =
  			    (el->el_state.argument * 10) + (c - '0');
  		}
  		return CC_ARGHACK;
  	}
  
  	return ed_insert(el, c);
  }
  
  
  /* ed_argument_digit():
   *	Digit that starts argument
   *	For ESC-n
   */
  protected el_action_t
  ed_argument_digit(EditLine *el, wint_t c)
  {
  
  	if (!iswdigit(c))
  		return CC_ERROR;
  
  	if (el->el_state.doingarg) {
  		if (el->el_state.argument > 1000000)
  			return CC_ERROR;
  		el->el_state.argument = (el->el_state.argument * 10) +
  		    (c - '0');
  	} else {		/* else starting an argument */
  		el->el_state.argument = c - '0';
  		el->el_state.doingarg = 1;
  	}
  	return CC_ARGHACK;
  }
  
  
  /* ed_unassigned():
   *	Indicates unbound character
   *	Bound to keys that are not assigned
   */
  protected el_action_t
  ed_unassigned(EditLine *el, wint_t c __attribute__((__unused__)))
  {
  
  	return CC_ERROR;
  }
  
  
  /* ed_ignore():
   *	Input characters that have no effect
   *	[^C ^O ^Q ^S ^Z ^\ ^]] [^C ^O ^Q ^S ^\]
   */
  protected el_action_t
  ed_ignore(EditLine *el __attribute__((__unused__)),
  	      wint_t c __attribute__((__unused__)))
  {
  
  	return CC_NORM;
  }
  
  
  /* ed_newline():
   *	Execute command
   *	[^J]
   */
  protected el_action_t
  ed_newline(EditLine *el, wint_t c __attribute__((__unused__)))
  {
  
  	re_goto_bottom(el);
  	*el->el_line.lastchar++ = '\n';
  	*el->el_line.lastchar = '\0';
  	return CC_NEWLINE;
  }
  
  
  /* ed_delete_prev_char():
   *	Delete the character to the left of the cursor
   *	[^?]
   */
  protected el_action_t
  ed_delete_prev_char(EditLine *el, wint_t c __attribute__((__unused__)))
  {
  
  	if (el->el_line.cursor <= el->el_line.buffer)
  		return CC_ERROR;
  
  	c_delbefore(el, el->el_state.argument);
  	el->el_line.cursor -= el->el_state.argument;
  	if (el->el_line.cursor < el->el_line.buffer)
  		el->el_line.cursor = el->el_line.buffer;
  	return CC_REFRESH;
  }
  
  
  /* ed_clear_screen():
   *	Clear screen leaving current line at the top
   *	[^L]
   */
  protected el_action_t
  ed_clear_screen(EditLine *el, wint_t c __attribute__((__unused__)))
  {
  
  	terminal_clear_screen(el);	/* clear the whole real screen */
  	re_clear_display(el);	/* reset everything */
  	return CC_REFRESH;
  }
  
  
  /* ed_redisplay():
   *	Redisplay everything
   *	^R
   */
  protected el_action_t
  ed_redisplay(EditLine *el __attribute__((__unused__)),
  	     wint_t c __attribute__((__unused__)))
  {
  
  	return CC_REDISPLAY;
  }
  
  
  /* ed_start_over():
   *	Erase current line and start from scratch
   *	[^G]
   */
  protected el_action_t
  ed_start_over(EditLine *el, wint_t c __attribute__((__unused__)))
  {
  
  	ch_reset(el);
  	return CC_REFRESH;
  }
  
  
  /* ed_sequence_lead_in():
   *	First character in a bound sequence
   *	Placeholder for external keys
   */
  protected el_action_t
  ed_sequence_lead_in(EditLine *el __attribute__((__unused__)),
  		    wint_t c __attribute__((__unused__)))
  {
  
  	return CC_NORM;
  }
  
  
  /* ed_prev_history():
   *	Move to the previous history line
   *	[^P] [k]
   */
  protected el_action_t
  ed_prev_history(EditLine *el, wint_t c __attribute__((__unused__)))
  {
  	char beep = 0;
  	int sv_event = el->el_history.eventno;
  
  	el->el_chared.c_undo.len = -1;
  	*el->el_line.lastchar = '\0';		/* just in case */
  
  	if (el->el_history.eventno == 0) {	/* save the current buffer
  						 * away */
  		(void) wcsncpy(el->el_history.buf, el->el_line.buffer,
  		    EL_BUFSIZ);
  		el->el_history.last = el->el_history.buf +
  		    (el->el_line.lastchar - el->el_line.buffer);
  	}
  	el->el_history.eventno += el->el_state.argument;
  
  	if (hist_get(el) == CC_ERROR) {
  		if (el->el_map.type == MAP_VI) {
  			el->el_history.eventno = sv_event;
  		}
  		beep = 1;
  		/* el->el_history.eventno was fixed by first call */
  		(void) hist_get(el);
  	}
  	if (beep)
  		return CC_REFRESH_BEEP;
  	return CC_REFRESH;
  }
  
  
  /* ed_next_history():
   *	Move to the next history line
   *	[^N] [j]
   */
  protected el_action_t
  ed_next_history(EditLine *el, wint_t c __attribute__((__unused__)))
  {
  	el_action_t beep = CC_REFRESH, rval;
  
  	el->el_chared.c_undo.len = -1;
  	*el->el_line.lastchar = '\0';	/* just in case */
  
  	el->el_history.eventno -= el->el_state.argument;
  
  	if (el->el_history.eventno < 0) {
  		el->el_history.eventno = 0;
  		beep = CC_REFRESH_BEEP;
  	}
  	rval = hist_get(el);
  	if (rval == CC_REFRESH)
  		return beep;
  	return rval;
  
  }
  
  
  /* ed_search_prev_history():
   *	Search previous in history for a line matching the current
   *	next search history [M-P] [K]
   */
  protected el_action_t
  ed_search_prev_history(EditLine *el, wint_t c __attribute__((__unused__)))
  {
  	const wchar_t *hp;
  	int h;
  	int found = 0;
  
  	el->el_chared.c_vcmd.action = NOP;
  	el->el_chared.c_undo.len = -1;
  	*el->el_line.lastchar = '\0';	/* just in case */
  	if (el->el_history.eventno < 0) {
  #ifdef DEBUG_EDIT
  		(void) fprintf(el->el_errfile,
  		    "e_prev_search_hist(): eventno < 0;\n");
  #endif
  		el->el_history.eventno = 0;
  		return CC_ERROR;
  	}
  	if (el->el_history.eventno == 0) {
  		(void) wcsncpy(el->el_history.buf, el->el_line.buffer,
  		    EL_BUFSIZ);
  		el->el_history.last = el->el_history.buf +
  		    (el->el_line.lastchar - el->el_line.buffer);
  	}
  	if (el->el_history.ref == NULL)
  		return CC_ERROR;
  
  	hp = HIST_FIRST(el);
  	if (hp == NULL)
  		return CC_ERROR;
  
  	c_setpat(el);		/* Set search pattern !! */
  
  	for (h = 1; h <= el->el_history.eventno; h++)
  		hp = HIST_NEXT(el);
  
  	while (hp != NULL) {
  #ifdef SDEBUG
  		(void) fprintf(el->el_errfile, "Comparing with \"%s\"\n", hp);
  #endif
  		if ((wcsncmp(hp, el->el_line.buffer, (size_t)
  			    (el->el_line.lastchar - el->el_line.buffer)) ||
  			hp[el->el_line.lastchar - el->el_line.buffer]) &&
  		    c_hmatch(el, hp)) {
  			found = 1;
  			break;
  		}
  		h++;
  		hp = HIST_NEXT(el);
  	}
  
  	if (!found) {
  #ifdef SDEBUG
  		(void) fprintf(el->el_errfile, "not found\n");
  #endif
  		return CC_ERROR;
  	}
  	el->el_history.eventno = h;
  
  	return hist_get(el);
  }
  
  
  /* ed_search_next_history():
   *	Search next in history for a line matching the current
   *	[M-N] [J]
   */
  protected el_action_t
  ed_search_next_history(EditLine *el, wint_t c __attribute__((__unused__)))
  {
  	const wchar_t *hp;
  	int h;
  	int found = 0;
  
  	el->el_chared.c_vcmd.action = NOP;
  	el->el_chared.c_undo.len = -1;
  	*el->el_line.lastchar = '\0';	/* just in case */
  
  	if (el->el_history.eventno == 0)
  		return CC_ERROR;
  
  	if (el->el_history.ref == NULL)
  		return CC_ERROR;
  
  	hp = HIST_FIRST(el);
  	if (hp == NULL)
  		return CC_ERROR;
  
  	c_setpat(el);		/* Set search pattern !! */
  
  	for (h = 1; h < el->el_history.eventno && hp; h++) {
  #ifdef SDEBUG
  		(void) fprintf(el->el_errfile, "Comparing with \"%s\"\n", hp);
  #endif
  		if ((wcsncmp(hp, el->el_line.buffer, (size_t)
  			    (el->el_line.lastchar - el->el_line.buffer)) ||
  			hp[el->el_line.lastchar - el->el_line.buffer]) &&
  		    c_hmatch(el, hp))
  			found = h;
  		hp = HIST_NEXT(el);
  	}
  
  	if (!found) {		/* is it the current history number? */
  		if (!c_hmatch(el, el->el_history.buf)) {
  #ifdef SDEBUG
  			(void) fprintf(el->el_errfile, "not found\n");
  #endif
  			return CC_ERROR;
  		}
  	}
  	el->el_history.eventno = found;
  
  	return hist_get(el);
  }
  
  
  /* ed_prev_line():
   *	Move up one line
   *	Could be [k] [^p]
   */
  protected el_action_t
  ed_prev_line(EditLine *el, wint_t c __attribute__((__unused__)))
  {
  	wchar_t *ptr;
  	int nchars = c_hpos(el);
  
  	/*
           * Move to the line requested
           */
  	if (*(ptr = el->el_line.cursor) == '\n')
  		ptr--;
  
  	for (; ptr >= el->el_line.buffer; ptr--)
  		if (*ptr == '\n' && --el->el_state.argument <= 0)
  			break;
  
  	if (el->el_state.argument > 0)
  		return CC_ERROR;
  
  	/*
           * Move to the beginning of the line
           */
  	for (ptr--; ptr >= el->el_line.buffer && *ptr != '\n'; ptr--)
  		continue;
  
  	/*
           * Move to the character requested
           */
  	for (ptr++;
  	    nchars-- > 0 && ptr < el->el_line.lastchar && *ptr != '\n';
  	    ptr++)
  		continue;
  
  	el->el_line.cursor = ptr;
  	return CC_CURSOR;
  }
  
  
  /* ed_next_line():
   *	Move down one line
   *	Could be [j] [^n]
   */
  protected el_action_t
  ed_next_line(EditLine *el, wint_t c __attribute__((__unused__)))
  {
  	wchar_t *ptr;
  	int nchars = c_hpos(el);
  
  	/*
           * Move to the line requested
           */
  	for (ptr = el->el_line.cursor; ptr < el->el_line.lastchar; ptr++)
  		if (*ptr == '\n' && --el->el_state.argument <= 0)
  			break;
  
  	if (el->el_state.argument > 0)
  		return CC_ERROR;
  
  	/*
           * Move to the character requested
           */
  	for (ptr++;
  	    nchars-- > 0 && ptr < el->el_line.lastchar && *ptr != '\n';
  	    ptr++)
  		continue;
  
  	el->el_line.cursor = ptr;
  	return CC_CURSOR;
  }
  
  
  /* ed_command():
   *	Editline extended command
   *	[M-X] [:]
   */
  protected el_action_t
  ed_command(EditLine *el, wint_t c __attribute__((__unused__)))
  {
  	wchar_t tmpbuf[EL_BUFSIZ];
  	int tmplen;
  
  	tmplen = c_gets(el, tmpbuf, L"\n: ");
  	terminal__putc(el, '\n');
  
  	if (tmplen < 0 || (tmpbuf[tmplen] = 0, parse_line(el, tmpbuf)) == -1)
  		terminal_beep(el);
  
  	el->el_map.current = el->el_map.key;
  	re_clear_display(el);
  	return CC_REFRESH;
  }