--- /dev/null
+/* $NetBSD: el.c,v 1.59 2010/04/15 00:56:40 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"
+#if !defined(lint) && !defined(SCCSID)
+#if 0
+static char sccsid[] = "@(#)el.c 8.2 (Berkeley) 1/3/94";
+#else
+__RCSID("$NetBSD: el.c,v 1.59 2010/04/15 00:56:40 christos Exp $");
+#endif
+#endif /* not lint && not SCCSID */
+
+#ifndef MAXPATHLEN
+#define MAXPATHLEN 4096
+#endif
+
+/*
+ * el.c: EditLine interface functions
+ */
+#include <sys/types.h>
+#include <sys/param.h>
+#include <string.h>
+#include <stdlib.h>
+#include <stdarg.h>
+#include <ctype.h>
+#include <locale.h>
+#include <langinfo.h>
+#include "el.h"
+
+/* el_init():
+ * Initialize editline and set default parameters.
+ */
+public EditLine *
+el_init(const char *prog, FILE *fin, FILE *fout, FILE *ferr)
+{
+ EditLine *el = (EditLine *) el_malloc(sizeof(EditLine));
+
+ if (el == NULL)
+ return (NULL);
+
+ memset(el, 0, sizeof(EditLine));
+
+ el->el_infile = fin;
+ el->el_outfile = fout;
+ el->el_errfile = ferr;
+
+ el->el_infd = fileno(fin);
+
+ el->el_prog = Strdup(ct_decode_string(prog, &el->el_scratch));
+ if (el->el_prog == NULL) {
+ el_free(el);
+ return NULL;
+ }
+
+ /*
+ * Initialize all the modules. Order is important!!!
+ */
+ el->el_flags = 0;
+#ifdef WIDECHAR
+ if (setlocale(LC_CTYPE, NULL) != NULL){
+ if (strcmp(nl_langinfo(CODESET), "UTF-8") == 0)
+ el->el_flags |= CHARSET_IS_UTF8;
+ }
+#endif
+
+ if (term_init(el) == -1) {
+ el_free(el->el_prog);
+ el_free(el);
+ return NULL;
+ }
+ (void) key_init(el);
+ (void) map_init(el);
+ if (tty_init(el) == -1)
+ el->el_flags |= NO_TTY;
+ (void) ch_init(el);
+ (void) search_init(el);
+ (void) hist_init(el);
+ (void) prompt_init(el);
+ (void) sig_init(el);
+ (void) read_init(el);
+
+ return (el);
+}
+
+
+/* el_end():
+ * Clean up.
+ */
+public void
+el_end(EditLine *el)
+{
+
+ if (el == NULL)
+ return;
+
+ el_reset(el);
+
+ term_end(el);
+ key_end(el);
+ map_end(el);
+ tty_end(el);
+ ch_end(el);
+ search_end(el);
+ hist_end(el);
+ prompt_end(el);
+ sig_end(el);
+
+ el_free((ptr_t) el->el_prog);
+ el_free((ptr_t) el);
+#ifdef WIDECHAR
+ el_free((ptr_t) el->el_scratch.cbuff);
+ el_free((ptr_t) el->el_scratch.wbuff);
+ el_free((ptr_t) el->el_lgcyconv.cbuff);
+ el_free((ptr_t) el->el_lgcyconv.wbuff);
+#endif
+}
+
+
+/* el_reset():
+ * Reset the tty and the parser
+ */
+public void
+el_reset(EditLine *el)
+{
+
+ tty_cookedmode(el);
+ ch_reset(el, 0); /* XXX: Do we want that? */
+}
+
+
+/* el_set():
+ * set the editline parameters
+ */
+public int
+FUN(el,set)(EditLine *el, int op, ...)
+{
+ va_list ap;
+ int rv = 0;
+
+ if (el == NULL)
+ return (-1);
+ va_start(ap, op);
+
+ switch (op) {
+ case EL_PROMPT:
+ case EL_RPROMPT: {
+ el_pfunc_t p = va_arg(ap, el_pfunc_t);
+
+ rv = prompt_set(el, p, 0, op, 1);
+ break;
+ }
+
+ case EL_PROMPT_ESC:
+ case EL_RPROMPT_ESC: {
+ el_pfunc_t p = va_arg(ap, el_pfunc_t);
+ int c = va_arg(ap, int);
+
+ rv = prompt_set(el, p, c, op, 1);
+ break;
+ }
+
+ case EL_TERMINAL:
+ rv = term_set(el, va_arg(ap, char *));
+ break;
+
+ case EL_EDITOR:
+ rv = map_set_editor(el, va_arg(ap, Char *));
+ break;
+
+ case EL_SIGNAL:
+ if (va_arg(ap, int))
+ el->el_flags |= HANDLE_SIGNALS;
+ else
+ el->el_flags &= ~HANDLE_SIGNALS;
+ break;
+
+ case EL_BIND:
+ case EL_TELLTC:
+ case EL_SETTC:
+ case EL_ECHOTC:
+ case EL_SETTY:
+ {
+ const Char *argv[20];
+ int i;
+
+ for (i = 1; i < 20; i++)
+ if ((argv[i] = va_arg(ap, Char *)) == NULL)
+ break;
+
+ switch (op) {
+ case EL_BIND:
+ argv[0] = STR("bind");
+ rv = map_bind(el, i, argv);
+ break;
+
+ case EL_TELLTC:
+ argv[0] = STR("telltc");
+ rv = term_telltc(el, i, argv);
+ break;
+
+ case EL_SETTC:
+ argv[0] = STR("settc");
+ rv = term_settc(el, i, argv);
+ break;
+
+ case EL_ECHOTC:
+ argv[0] = STR("echotc");
+ rv = term_echotc(el, i, argv);
+ break;
+
+ case EL_SETTY:
+ argv[0] = STR("setty");
+ rv = tty_stty(el, i, argv);
+ break;
+
+ default:
+ rv = -1;
+ EL_ABORT((el->el_errfile, "Bad op %d\n", op));
+ break;
+ }
+ break;
+ }
+
+ case EL_ADDFN:
+ {
+ Char *name = va_arg(ap, Char *);
+ Char *help = va_arg(ap, Char *);
+ el_func_t func = va_arg(ap, el_func_t);
+
+ rv = map_addfunc(el, name, help, func);
+ break;
+ }
+
+ case EL_HIST:
+ {
+ hist_fun_t func = va_arg(ap, hist_fun_t);
+ ptr_t ptr = va_arg(ap, ptr_t);
+
+ rv = hist_set(el, func, ptr);
+ if (!(el->el_flags & CHARSET_IS_UTF8))
+ el->el_flags &= ~NARROW_HISTORY;
+ break;
+ }
+
+ case EL_EDITMODE:
+ if (va_arg(ap, int))
+ el->el_flags &= ~EDIT_DISABLED;
+ else
+ el->el_flags |= EDIT_DISABLED;
+ rv = 0;
+ break;
+
+ case EL_GETCFN:
+ {
+ el_rfunc_t rc = va_arg(ap, el_rfunc_t);
+ rv = el_read_setfn(el, rc);
+ el->el_flags &= ~NARROW_READ;
+ break;
+ }
+
+ case EL_CLIENTDATA:
+ el->el_data = va_arg(ap, void *);
+ break;
+
+ case EL_UNBUFFERED:
+ rv = va_arg(ap, int);
+ if (rv && !(el->el_flags & UNBUFFERED)) {
+ el->el_flags |= UNBUFFERED;
+ read_prepare(el);
+ } else if (!rv && (el->el_flags & UNBUFFERED)) {
+ el->el_flags &= ~UNBUFFERED;
+ read_finish(el);
+ }
+ rv = 0;
+ break;
+
+ case EL_PREP_TERM:
+ rv = va_arg(ap, int);
+ if (rv)
+ (void) tty_rawmode(el);
+ else
+ (void) tty_cookedmode(el);
+ rv = 0;
+ break;
+
+ case EL_SETFP:
+ {
+ FILE *fp;
+ int what;
+
+ what = va_arg(ap, int);
+ fp = va_arg(ap, FILE *);
+
+ rv = 0;
+ switch (what) {
+ case 0:
+ el->el_infile = fp;
+ el->el_infd = fileno(fp);
+ break;
+ case 1:
+ el->el_outfile = fp;
+ break;
+ case 2:
+ el->el_errfile = fp;
+ break;
+ default:
+ rv = -1;
+ break;
+ }
+ break;
+ }
+
+ case EL_REFRESH:
+ re_clear_display(el);
+ re_refresh(el);
+ term__flush(el);
+ break;
+
+ default:
+ rv = -1;
+ break;
+ }
+
+ va_end(ap);
+ return (rv);
+}
+
+
+/* el_get():
+ * retrieve the editline parameters
+ */
+public int
+FUN(el,get)(EditLine *el, int op, ...)
+{
+ va_list ap;
+ int rv;
+
+ if (el == NULL)
+ return -1;
+
+ va_start(ap, op);
+
+ switch (op) {
+ case EL_PROMPT:
+ case EL_RPROMPT: {
+ el_pfunc_t *p = va_arg(ap, el_pfunc_t *);
+ rv = prompt_get(el, p, 0, op);
+ break;
+ }
+ case EL_PROMPT_ESC:
+ case EL_RPROMPT_ESC: {
+ el_pfunc_t *p = va_arg(ap, el_pfunc_t *);
+ Char *c = va_arg(ap, Char *);
+
+ rv = prompt_get(el, p, c, op);
+ break;
+ }
+
+ case EL_EDITOR:
+ rv = map_get_editor(el, va_arg(ap, const Char **));
+ break;
+
+ case EL_SIGNAL:
+ *va_arg(ap, int *) = (el->el_flags & HANDLE_SIGNALS);
+ rv = 0;
+ break;
+
+ case EL_EDITMODE:
+ *va_arg(ap, int *) = !(el->el_flags & EDIT_DISABLED);
+ rv = 0;
+ break;
+
+ case EL_TERMINAL:
+ term_get(el, va_arg(ap, const char **));
+ rv = 0;
+ break;
+
+ case EL_GETTC:
+ {
+ static char name[] = "gettc";
+ char *argv[20];
+ int i;
+
+ for (i = 1; i < (int)(sizeof(argv) / sizeof(argv[0])); i++)
+ if ((argv[i] = va_arg(ap, char *)) == NULL)
+ break;
+
+ switch (op) {
+ case EL_GETTC:
+ argv[0] = name;
+ rv = term_gettc(el, i, argv);
+ break;
+
+ default:
+ rv = -1;
+ EL_ABORT((el->el_errfile, "Bad op %d\n", op));
+ break;
+ }
+ break;
+ }
+
+ case EL_GETCFN:
+ *va_arg(ap, el_rfunc_t *) = el_read_getfn(el);
+ rv = 0;
+ break;
+
+ case EL_CLIENTDATA:
+ *va_arg(ap, void **) = el->el_data;
+ rv = 0;
+ break;
+
+ case EL_UNBUFFERED:
+ *va_arg(ap, int *) = (!(el->el_flags & UNBUFFERED));
+ rv = 0;
+ break;
+
+ case EL_GETFP:
+ {
+ int what;
+ FILE **fpp;
+
+ what = va_arg(ap, int);
+ fpp = va_arg(ap, FILE **);
+ rv = 0;
+ switch (what) {
+ case 0:
+ *fpp = el->el_infile;
+ break;
+ case 1:
+ *fpp = el->el_outfile;
+ break;
+ case 2:
+ *fpp = el->el_errfile;
+ break;
+ default:
+ rv = -1;
+ break;
+ }
+ break;
+ }
+ default:
+ rv = -1;
+ break;
+ }
+ va_end(ap);
+
+ return (rv);
+}
+
+
+/* el_line():
+ * Return editing info
+ */
+public const TYPE(LineInfo) *
+FUN(el,line)(EditLine *el)
+{
+
+ return (const TYPE(LineInfo) *) (void *) &el->el_line;
+}
+
+
+/* el_source():
+ * Source a file
+ */
+public int
+el_source(EditLine *el, const char *fname)
+{
+ FILE *fp;
+ size_t len;
+ char *ptr;
+ char path[MAXPATHLEN];
+ const Char *dptr;
+
+ fp = NULL;
+ if (fname == NULL) {
+ static const char elpath[] = "/.editrc";
+
+#ifdef HAVE_ISSETUGID
+ if (issetugid())
+ return (-1);
+#endif
+ if ((ptr = getenv("HOME")) == NULL)
+ return (-1);
+ if (strlcpy(path, ptr, sizeof(path)) >= sizeof(path))
+ return (-1);
+ if (strlcat(path, elpath, sizeof(path)) >= sizeof(path))
+ return (-1);
+ fname = path;
+ }
+ if (fp == NULL)
+ fp = fopen(fname, "r");
+ if (fp == NULL)
+ return (-1);
+
+ while ((ptr = fgetln(fp, &len)) != NULL) {
+ dptr = ct_decode_string(ptr, &el->el_scratch);
+ if (!dptr)
+ continue;
+ if (len > 0 && dptr[len - 1] == '\n')
+ --len;
+
+ /* loop until first non-space char or EOL */
+ while (*dptr != '\0' && Isspace(*dptr))
+ dptr++;
+ if (*dptr == '#')
+ continue; /* ignore, this is a comment line */
+ if (parse_line(el, dptr) == -1) {
+ (void) fclose(fp);
+ return (-1);
+ }
+ }
+
+ (void) fclose(fp);
+ return (0);
+}
+
+
+/* el_resize():
+ * Called from program when terminal is resized
+ */
+public void
+el_resize(EditLine *el)
+{
+ int lins, cols;
+ sigset_t oset, nset;
+
+ (void) sigemptyset(&nset);
+ (void) sigaddset(&nset, SIGWINCH);
+ (void) sigprocmask(SIG_BLOCK, &nset, &oset);
+
+ /* get the correct window size */
+ if (term_get_size(el, &lins, &cols))
+ term_change_size(el, lins, cols);
+
+ (void) sigprocmask(SIG_SETMASK, &oset, NULL);
+}
+
+
+/* el_beep():
+ * Called from the program to beep
+ */
+public void
+el_beep(EditLine *el)
+{
+
+ term_beep(el);
+}
+
+
+/* el_editmode()
+ * Set the state of EDIT_DISABLED from the `edit' command.
+ */
+protected int
+/*ARGSUSED*/
+el_editmode(EditLine *el, int argc, const Char **argv)
+{
+ const Char *how;
+
+ if (argv == NULL || argc != 2 || argv[1] == NULL)
+ return (-1);
+
+ how = argv[1];
+ if (Strcmp(how, STR("on")) == 0) {
+ el->el_flags &= ~EDIT_DISABLED;
+ tty_rawmode(el);
+ } else if (Strcmp(how, STR("off")) == 0) {
+ tty_cookedmode(el);
+ el->el_flags |= EDIT_DISABLED;
+ }
+ else {
+ (void) fprintf(el->el_errfile, "edit: Bad value `" FSTR "'.\n",
+ how);
+ return (-1);
+ }
+ return (0);
+}
projects / deliverable / titan.core.git / blobdiff