393 lines
8.5 KiB
C
393 lines
8.5 KiB
C
/* $NetBSD: eln.c,v 1.28 2016/02/28 23:02:24 christos Exp $ */
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/*-
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* Copyright (c) 2009 The NetBSD Foundation, Inc.
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* 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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*
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* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#include "config.h"
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#if !defined(lint) && !defined(SCCSID)
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__RCSID("$NetBSD: eln.c,v 1.28 2016/02/28 23:02:24 christos Exp $");
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#endif /* not lint && not SCCSID */
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#include <errno.h>
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#include <stdarg.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include "el.h"
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public int
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el_getc(EditLine *el, char *cp)
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{
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int num_read;
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wchar_t wc = 0;
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num_read = el_wgetc(el, &wc);
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*cp = '\0';
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if (num_read <= 0)
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return num_read;
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num_read = ct_wctob(wc);
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if (num_read == EOF) {
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errno = ERANGE;
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return -1;
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} else {
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*cp = (char)num_read;
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return 1;
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}
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}
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#ifdef WIDECHAR
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public void
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el_push(EditLine *el, const char *str)
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{
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/* Using multibyte->wide string decoding works fine under single-byte
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* character sets too, and Does The Right Thing. */
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el_wpush(el, ct_decode_string(str, &el->el_lgcyconv));
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}
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public const char *
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el_gets(EditLine *el, int *nread)
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{
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const wchar_t *tmp;
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tmp = el_wgets(el, nread);
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if (tmp != NULL) {
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int i;
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size_t nwread = 0;
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for (i = 0; i < *nread; i++)
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nwread += ct_enc_width(tmp[i]);
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*nread = (int)nwread;
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}
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return ct_encode_string(tmp, &el->el_lgcyconv);
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}
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public int
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el_parse(EditLine *el, int argc, const char *argv[])
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{
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int ret;
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const wchar_t **wargv;
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wargv = (const wchar_t **)
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ct_decode_argv(argc, argv, &el->el_lgcyconv);
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if (!wargv)
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return -1;
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ret = el_wparse(el, argc, wargv);
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ct_free_argv(wargv);
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return ret;
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}
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public int
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el_set(EditLine *el, int op, ...)
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{
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va_list ap;
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int ret;
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if (!el)
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return -1;
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va_start(ap, op);
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switch (op) {
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case EL_PROMPT: /* el_pfunc_t */
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case EL_RPROMPT: {
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el_pfunc_t p = va_arg(ap, el_pfunc_t);
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ret = prompt_set(el, p, 0, op, 0);
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break;
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}
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case EL_RESIZE: {
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el_zfunc_t p = va_arg(ap, el_zfunc_t);
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void *arg = va_arg(ap, void *);
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ret = ch_resizefun(el, p, arg);
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break;
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}
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case EL_ALIAS_TEXT: {
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el_afunc_t p = va_arg(ap, el_afunc_t);
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void *arg = va_arg(ap, void *);
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ret = ch_aliasfun(el, p, arg);
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break;
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}
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case EL_PROMPT_ESC:
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case EL_RPROMPT_ESC: {
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el_pfunc_t p = va_arg(ap, el_pfunc_t);
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int c = va_arg(ap, int);
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ret = prompt_set(el, p, c, op, 0);
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break;
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}
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case EL_TERMINAL: /* const char * */
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ret = el_wset(el, op, va_arg(ap, char *));
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break;
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case EL_EDITOR: /* const wchar_t * */
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ret = el_wset(el, op, ct_decode_string(va_arg(ap, char *),
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&el->el_lgcyconv));
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break;
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case EL_SIGNAL: /* int */
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case EL_EDITMODE:
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case EL_UNBUFFERED:
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case EL_PREP_TERM:
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ret = el_wset(el, op, va_arg(ap, int));
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break;
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case EL_BIND: /* const char * list -> const wchar_t * list */
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case EL_TELLTC:
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case EL_SETTC:
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case EL_ECHOTC:
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case EL_SETTY: {
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const char *argv[20];
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int i;
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const wchar_t **wargv;
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for (i = 1; i < (int)__arraycount(argv) - 1; ++i)
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if ((argv[i] = va_arg(ap, const char *)) == NULL)
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break;
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argv[0] = argv[i] = NULL;
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wargv = (const wchar_t **)
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ct_decode_argv(i + 1, argv, &el->el_lgcyconv);
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if (!wargv) {
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ret = -1;
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goto out;
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}
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/*
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* AFAIK we can't portably pass through our new wargv to
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* el_wset(), so we have to reimplement the body of
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* el_wset() for these ops.
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*/
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switch (op) {
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case EL_BIND:
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wargv[0] = STR("bind");
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ret = map_bind(el, i, wargv);
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break;
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case EL_TELLTC:
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wargv[0] = STR("telltc");
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ret = terminal_telltc(el, i, wargv);
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break;
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case EL_SETTC:
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wargv[0] = STR("settc");
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ret = terminal_settc(el, i, wargv);
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break;
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case EL_ECHOTC:
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wargv[0] = STR("echotc");
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ret = terminal_echotc(el, i, wargv);
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break;
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case EL_SETTY:
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wargv[0] = STR("setty");
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ret = tty_stty(el, i, wargv);
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break;
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default:
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ret = -1;
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}
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ct_free_argv(wargv);
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break;
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}
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/* XXX: do we need to change el_func_t too? */
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case EL_ADDFN: { /* const char *, const char *, el_func_t */
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const char *args[2];
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el_func_t func;
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wchar_t **wargv;
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args[0] = va_arg(ap, const char *);
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args[1] = va_arg(ap, const char *);
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func = va_arg(ap, el_func_t);
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wargv = ct_decode_argv(2, args, &el->el_lgcyconv);
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if (!wargv) {
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ret = -1;
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goto out;
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}
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/* XXX: The two strdup's leak */
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ret = map_addfunc(el, Strdup(wargv[0]), Strdup(wargv[1]),
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func);
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ct_free_argv(wargv);
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break;
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}
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case EL_HIST: { /* hist_fun_t, const char * */
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hist_fun_t fun = va_arg(ap, hist_fun_t);
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void *ptr = va_arg(ap, void *);
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ret = hist_set(el, fun, ptr);
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el->el_flags |= NARROW_HISTORY;
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break;
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}
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case EL_GETCFN: /* el_rfunc_t */
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ret = el_wset(el, op, va_arg(ap, el_rfunc_t));
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break;
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case EL_CLIENTDATA: /* void * */
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ret = el_wset(el, op, va_arg(ap, void *));
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break;
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case EL_SETFP: { /* int, FILE * */
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int what = va_arg(ap, int);
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FILE *fp = va_arg(ap, FILE *);
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ret = el_wset(el, op, what, fp);
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break;
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}
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case EL_REFRESH:
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re_clear_display(el);
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re_refresh(el);
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terminal__flush(el);
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ret = 0;
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break;
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default:
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ret = -1;
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break;
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}
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out:
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va_end(ap);
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return ret;
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}
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public int
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el_get(EditLine *el, int op, ...)
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{
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va_list ap;
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int ret;
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if (!el)
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return -1;
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va_start(ap, op);
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switch (op) {
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case EL_PROMPT: /* el_pfunc_t * */
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case EL_RPROMPT: {
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el_pfunc_t *p = va_arg(ap, el_pfunc_t *);
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ret = prompt_get(el, p, 0, op);
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break;
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}
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case EL_PROMPT_ESC: /* el_pfunc_t *, char **/
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case EL_RPROMPT_ESC: {
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el_pfunc_t *p = va_arg(ap, el_pfunc_t *);
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char *c = va_arg(ap, char *);
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wchar_t wc = 0;
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ret = prompt_get(el, p, &wc, op);
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*c = (char)wc;
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break;
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}
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case EL_EDITOR: {
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const char **p = va_arg(ap, const char **);
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const wchar_t *pw;
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ret = el_wget(el, op, &pw);
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*p = ct_encode_string(pw, &el->el_lgcyconv);
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if (!el->el_lgcyconv.csize)
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ret = -1;
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break;
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}
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case EL_TERMINAL: /* const char ** */
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ret = el_wget(el, op, va_arg(ap, const char **));
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break;
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case EL_SIGNAL: /* int * */
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case EL_EDITMODE:
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case EL_UNBUFFERED:
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case EL_PREP_TERM:
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ret = el_wget(el, op, va_arg(ap, int *));
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break;
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case EL_GETTC: {
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char *argv[20];
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static char gettc[] = "gettc";
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int i;
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for (i = 1; i < (int)__arraycount(argv); ++i)
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if ((argv[i] = va_arg(ap, char *)) == NULL)
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break;
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argv[0] = gettc;
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ret = terminal_gettc(el, i, argv);
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break;
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}
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case EL_GETCFN: /* el_rfunc_t */
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ret = el_wget(el, op, va_arg(ap, el_rfunc_t *));
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break;
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case EL_CLIENTDATA: /* void ** */
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ret = el_wget(el, op, va_arg(ap, void **));
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break;
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case EL_GETFP: { /* int, FILE ** */
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int what = va_arg(ap, int);
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FILE **fpp = va_arg(ap, FILE **);
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ret = el_wget(el, op, what, fpp);
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break;
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}
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default:
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ret = -1;
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break;
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}
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va_end(ap);
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return ret;
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}
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const LineInfo *
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el_line(EditLine *el)
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{
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const LineInfoW *winfo = el_wline(el);
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LineInfo *info = &el->el_lgcylinfo;
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size_t offset;
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const Char *p;
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info->buffer = ct_encode_string(winfo->buffer, &el->el_lgcyconv);
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offset = 0;
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for (p = winfo->buffer; p < winfo->cursor; p++)
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offset += ct_enc_width(*p);
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info->cursor = info->buffer + offset;
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offset = 0;
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for (p = winfo->buffer; p < winfo->lastchar; p++)
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offset += ct_enc_width(*p);
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info->lastchar = info->buffer + offset;
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return info;
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}
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int
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el_insertstr(EditLine *el, const char *str)
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{
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return el_winsertstr(el, ct_decode_string(str, &el->el_lgcyconv));
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}
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#endif /* WIDECHAR */
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