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311 lines
8.9 KiB
C
311 lines
8.9 KiB
C
/*-
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* Copyright (c) 1993, 1994
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* The Regents of the University of California. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the University of
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* California, Berkeley and its contributors.
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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#ifndef lint
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static char sccsid[] = "@(#)svi_term.c 8.7 (Berkeley) 8/17/94";
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#endif /* not lint */
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#include <sys/types.h>
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#include <sys/queue.h>
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#include <sys/time.h>
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#include <bitstring.h>
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#include <errno.h>
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#include <limits.h>
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#include <signal.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <termios.h>
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#include <unistd.h>
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#include "compat.h"
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#include <curses.h>
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#include <db.h>
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#include <regex.h>
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#include "vi.h"
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#include "../vi/vcmd.h"
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#include "excmd.h"
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#include "svi_screen.h"
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/*
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* XXX
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* THIS REQUIRES THAT ALL SCREENS SHARE A TERMINAL TYPE.
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*/
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typedef struct _tklist {
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char *ts; /* Key's termcap string. */
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char *output; /* Corresponding vi command. */
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char *name; /* Name. */
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u_char value; /* Special value (for lookup). */
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} TKLIST;
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static TKLIST const c_tklist[] = { /* Command mappings. */
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#ifdef SYSV_CURSES
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{"kil1", "O", "insert line"},
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{"kdch1", "x", "delete character"},
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{"kcud1", "j", "cursor down"},
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{"kel", "D", "delete to eol"},
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{"kind", "\004", "scroll down"},
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{"kll", "$", "go to eol"},
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{"khome", "^", "go to sol"},
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{"kich1", "i", "insert at cursor"},
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{"kdl1", "dd", "delete line"},
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{"kcub1", "h", "cursor left"},
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{"knp", "\006", "page down"},
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{"kpp", "\002", "page up"},
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{"kri", "\025", "scroll up"},
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{"ked", "dG", "delete to end of screen"},
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{"kcuf1", "l", "cursor right"},
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{"kcuu1", "k", "cursor up"},
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#else
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{"kA", "O", "insert line"},
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{"kD", "x", "delete character"},
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{"kd", "j", "cursor down"},
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{"kE", "D", "delete to eol"},
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{"kF", "\004", "scroll down"},
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{"kH", "$", "go to eol"},
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{"kh", "^", "go to sol"},
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{"kI", "i", "insert at cursor"},
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{"kL", "dd", "delete line"},
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{"kl", "h", "cursor left"},
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{"kN", "\006", "page down"},
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{"kP", "\002", "page up"},
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{"kR", "\025", "scroll up"},
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{"kS", "dG", "delete to end of screen"},
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{"kr", "l", "cursor right"},
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{"ku", "k", "cursor up"},
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#endif
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{NULL},
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};
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static TKLIST const m1_tklist[] = { /* Input mappings (lookup). */
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{NULL},
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};
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static TKLIST const m2_tklist[] = { /* Input mappings (set or delete). */
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#ifdef SYSV_CURSES
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{"kcud1", "\033ja", "cursor down"},
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{"kcub1", "\033ha", "cursor left"},
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{"kcuu1", "\033ka", "cursor up"},
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{"kcuf1", "\033la", "cursor right"},
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#else
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{"kd", "\033ja", "cursor down"},
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{"kl", "\033ha", "cursor left"},
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{"ku", "\033ka", "cursor up"},
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{"kr", "\033la", "cursor right"},
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#endif
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{NULL},
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};
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/*
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* svi_term_init --
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* Initialize the special keys defined by the termcap/terminfo entry.
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*/
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int
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svi_term_init(sp)
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SCR *sp;
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{
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KEYLIST *kp;
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SEQ *qp;
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TKLIST const *tkp;
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size_t len;
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char *sbp, *s, *t, sbuf[1024];
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/* Command mappings. */
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for (tkp = c_tklist; tkp->name != NULL; ++tkp) {
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#ifdef SYSV_CURSES
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if ((t = tigetstr(tkp->ts)) == NULL || t == (char *)-1)
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continue;
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#else
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sbp = sbuf;
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if ((t = tgetstr(tkp->ts, &sbp)) == NULL)
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continue;
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#endif
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if (seq_set(sp, tkp->name, strlen(tkp->name), t, strlen(t),
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tkp->output, strlen(tkp->output), SEQ_COMMAND, SEQ_SCREEN))
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return (1);
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}
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/* Input mappings needing to be looked up. */
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for (tkp = m1_tklist; tkp->name != NULL; ++tkp) {
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#ifdef SYSV_CURSES
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if ((t = tigetstr(tkp->ts)) == NULL || t == (char *)-1)
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continue;
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#else
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sbp = sbuf;
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if ((t = tgetstr(tkp->ts, &sbp)) == NULL)
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continue;
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#endif
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for (kp = keylist;; ++kp)
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if (kp->value == tkp->value)
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break;
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if (kp == NULL)
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continue;
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if (seq_set(sp, tkp->name, strlen(tkp->name),
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t, strlen(t), &kp->ch, 1, SEQ_INPUT, SEQ_SCREEN))
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return (1);
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}
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/* Input mappings that are already set or are text deletions. */
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for (tkp = m2_tklist; tkp->name != NULL; ++tkp) {
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#ifdef SYSV_CURSES
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if ((t = tigetstr(tkp->ts)) == NULL || t == (char *)-1)
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continue;
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#else
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sbp = sbuf;
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if ((t = tgetstr(tkp->ts, &sbp)) == NULL)
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continue;
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#endif
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/*
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* !!!
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* Some terminals' <cursor_left> keys send single <backspace>
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* characters. This is okay in command mapping, but not okay
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* in input mapping. That combination is the only one we'll
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* ever see, hopefully, so kluge it here for now.
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*/
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if (!strcmp(t, "\b"))
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continue;
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if (tkp->output == NULL) {
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if (seq_set(sp, tkp->name, strlen(tkp->name),
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t, strlen(t), NULL, 0, SEQ_INPUT, SEQ_SCREEN))
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return (1);
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} else
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if (seq_set(sp, tkp->name, strlen(tkp->name),
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t, strlen(t), tkp->output, strlen(tkp->output),
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SEQ_INPUT, SEQ_SCREEN))
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return (1);
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}
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/* Rework any function key mappings. */
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for (qp = sp->gp->seqq.lh_first; qp != NULL; qp = qp->q.le_next) {
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if (!F_ISSET(qp, SEQ_FUNCMAP))
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continue;
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(void)svi_fmap(sp, qp->stype,
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qp->input, qp->ilen, qp->output, qp->olen);
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}
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/* Set up the visual bell information. */
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t = sbuf;
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if (tgetstr("vb", &t) != NULL && (len = t - sbuf) != 0) {
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MALLOC_RET(sp, s, char *, len);
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memmove(s, sbuf, len);
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if (SVP(sp)->VB != NULL)
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free(SVP(sp)->VB);
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SVP(sp)->VB = s;
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return (0);
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}
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return (0);
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}
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/*
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* svi_term_end --
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* End the special keys defined by the termcap/terminfo entry.
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*/
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int
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svi_term_end(sp)
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SCR *sp;
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{
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SEQ *qp, *nqp;
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/* Delete screen specific mappings. */
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for (qp = sp->gp->seqq.lh_first; qp != NULL; qp = nqp) {
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nqp = qp->q.le_next;
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if (!F_ISSET(qp, SEQ_SCREEN))
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continue;
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(void)seq_mdel(qp);
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}
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return (0);
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}
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/*
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* svi_fmap --
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* Map a function key.
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*/
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int
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svi_fmap(sp, stype, from, flen, to, tlen)
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SCR *sp;
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enum seqtype stype;
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CHAR_T *from, *to;
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size_t flen, tlen;
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{
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char *t, keyname[64];
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size_t nlen;
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/* If the terminal isn't initialized, there's nothing to do. */
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if (!F_ISSET(SVP(sp), SVI_CURSES_INIT))
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return (0);
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#ifdef SYSV_CURSES
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(void)snprintf(keyname, sizeof(keyname), "kf%d", atoi(from + 1));
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if ((t = tigetstr(keyname)) == NULL || t == (char *)-1)
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t = NULL;
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#else
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/*
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* !!!
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* Historically, the 4BSD termcap code didn't support functions keys
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* greater than 9. This was silently enforced -- asking for key k12
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* returned the value for k1. We try and get around this by using
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* the tables specified in the terminfo(TI_ENV) man page from the 3rd
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* Edition SVID. This assumes that the implementors of any System V
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* compatibility code or an extended termcap used those codes.
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*/
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{ int n; char *sbp, sbuf[1024];
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static const char codes[] = {
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/* 0-10 */ '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', ';',
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/* 11-19 */ '1', '2', '3', '4', '5', '6', '7', '8', '9',
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/* 20-63 */ 'A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', 'I', 'J', 'K', 'L', 'M',
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'N', 'O', 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W', 'X', 'Y', 'Z',
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'a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j', 'k', 'l', 'm',
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'n', 'o', 'p', 'q', 'r', 's', 't', 'u', 'v', 'w', 'x', 'y', 'z',
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};
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if ((n = atoi(from + 1)) > 63) {
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msgq(sp, M_ERR,
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"Termcap has no code for the %s function key",
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from);
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return (1);
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}
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(void)snprintf(keyname, sizeof(keyname),
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"%c%c", n <= 10 ? 'k' : 'F', codes[n]);
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sbp = sbuf;
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t = tgetstr(keyname, &sbp);
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}
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#endif
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if (t == NULL) {
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msgq(sp, M_ERR, "This terminal has no %s key", from);
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return (1);
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}
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nlen = snprintf(keyname,
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sizeof(keyname), "function key %d", atoi(from + 1));
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return (seq_set(sp, keyname, nlen, t, strlen(t),
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to, tlen, stype, SEQ_SCREEN | SEQ_USERDEF));
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}
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