Example #1
0
int
main(int argc, char *argv[])
{
	EditLine *el = NULL;
	int numc, ncontinuation;
	const wchar_t *line;
	TokenizerW *tok;
	HistoryW *hist;
	HistEventW ev;
#ifdef DEBUG
	int i;
#endif

	setlocale(LC_ALL, "");

	(void)signal(SIGINT,  sig);
	(void)signal(SIGQUIT, sig);
	(void)signal(SIGHUP,  sig);
	(void)signal(SIGTERM, sig);

	hist = history_winit();		/* Init built-in history     */
	history_w(hist, &ev, H_SETSIZE, 100);	/* Remember 100 events	     */
	history_w(hist, &ev, H_LOAD, hfile);

	tok = tok_winit(NULL);			/* Init the tokenizer	     */

	el = el_init(argv[0], stdin, stdout, stderr);

	el_wset(el, EL_EDITOR, L"vi");		/* Default editor is vi	     */
	el_wset(el, EL_SIGNAL, 1);		/* Handle signals gracefully */
	el_wset(el, EL_PROMPT_ESC, prompt, '\1'); /* Set the prompt function */

	el_wset(el, EL_HIST, history_w, hist);	/* FIXME - history_w? */

					/* Add a user-defined function	*/
	el_wset(el, EL_ADDFN, L"ed-complete", L"Complete argument", complete);

					/* Bind <tab> to it */
	el_wset(el, EL_BIND, L"^I", L"ed-complete", NULL);

	/*
	* Bind j, k in vi command mode to previous and next line, instead
	* of previous and next history.
	*/
	el_wset(el, EL_BIND, L"-a", L"k", L"ed-prev-line", NULL);
	el_wset(el, EL_BIND, L"-a", L"j", L"ed-next-line", NULL);

	/* Source the user's defaults file. */
	el_source(el, NULL);

	while((line = el_wgets(el, &numc)) != NULL && numc != 0) {
		int ac, cc, co, rc;
		const wchar_t **av;

		const LineInfoW *li;
		li = el_wline(el);

#ifdef DEBUG
		(void)fwprintf(stderr, L"==> got %d %ls", numc, line);
		(void)fwprintf(stderr, L"  > li `%.*ls_%.*ls'\n",
		    (li->cursor - li->buffer), li->buffer,
		    (li->lastchar - 1 - li->cursor),
		    (li->cursor >= li->lastchar) ? L"" : li->cursor);
#endif

		if (gotsig) {
			(void)fprintf(stderr, "Got signal %d.\n", gotsig);
			gotsig = 0;
			el_reset(el);
		}

		if(!continuation && numc == 1)
			continue;	/* Only got a linefeed */

		ac = cc = co = 0;
		ncontinuation = tok_wline(tok, li, &ac, &av, &cc, &co);
		if (ncontinuation < 0) {
			(void) fprintf(stderr, "Internal error\n");
			continuation = 0;
			continue;
		}

#ifdef DEBUG
		(void)fprintf(stderr, "  > nc %d ac %d cc %d co %d\n",
			ncontinuation, ac, cc, co);
#endif
		history_w(hist, &ev, continuation ? H_APPEND : H_ENTER, line);

		continuation = ncontinuation;
		ncontinuation = 0;
		if(continuation)
			continue;

#ifdef DEBUG
		for (i = 0; i < ac; ++i) {
			(void)fwprintf(stderr, L"  > arg# %2d ", i);
			if (i != cc)
				(void)fwprintf(stderr, L"`%ls'\n", av[i]);
			else
				(void)fwprintf(stderr, L"`%.*ls_%ls'\n",
				    co, av[i], av[i] + co);
		}
#endif

		if (wcscmp (av[0], L"history") == 0) {
			switch(ac) {
			case 1:
				for(rc = history_w(hist, &ev, H_LAST);
				     rc != -1;
				     rc = history_w(hist, &ev, H_PREV))
					(void)fwprintf(stdout, L"%4d %ls",
					     ev.num, ev.str);
				break;
			case 2:
				if (wcscmp(av[1], L"clear") == 0)
					history_w(hist, &ev, H_CLEAR);
				else
					goto badhist;
				break;
			case 3:
				if (wcscmp(av[1], L"load") == 0)
					history_w(hist, &ev, H_LOAD,
					    my_wcstombs(av[2]));
				else if (wcscmp(av[1], L"save") == 0)
					history_w(hist, &ev, H_SAVE,
					    my_wcstombs(av[2]));
				else
					goto badhist;
				break;
			badhist:
			default:
				(void)fprintf(stderr,
				    "Bad history arguments\n");
				break;
			}
		} else if (el_wparse(el, ac, av) == -1) {
			switch (fork()) {
			case 0: {
				Tokenizer *ntok = tok_init(NULL);
				int nargc;
				const char **nav;
				tok_str(ntok, my_wcstombs(line), &nargc, &nav);
				execvp(nav[0],(char **)nav);
				perror(nav[0]);
				_exit(1);
				/* NOTREACHED */
				break;
			}
			case -1:
				perror("fork");
				break;
			default:
				if (wait(&rc) == -1)
					perror("wait");
				(void)fprintf(stderr, "Exit %x\n", rc);
				break;
			}
		}

		tok_wreset(tok);
	}

	el_end(el);
	tok_wend(tok);
	history_w(hist, &ev, H_SAVE, hfile);
	history_wend(hist);

	fprintf(stdout, "\n");
	return 0;
}
Example #2
0
File: enter.c Project: 0xAX/muttx
int _mutt_enter_string(char *buf, size_t buflen, int y, int x,
			int flags, int multiple, char ***files, int *numfiles,
			struct enter_state *state)
{
	int width = COLS - x - 1;
	int redraw;
	int pass =(flags & M_PASS);
	int first = 1;
	int ch, w, r;
	size_t i;
	wchar_t *tempbuf = 0;
	size_t templen = 0;
	history_class_t hclass;
	wchar_t wc;
	mbstate_t mbstate;

	int rv = 0;
	memset(&mbstate, 0, sizeof(mbstate));

	if (state->wbuf)
	{
		/* Coming back after return 1 */
		redraw = M_REDRAW_LINE;
		first = 0;
	}
	else
	{
		/* Initialise wbuf from buf */
		state->wbuflen = 0;
		state->lastchar = my_mbstowcs(&state->wbuf, &state->wbuflen, 0, buf);
		redraw = M_REDRAW_INIT;
	}

	if (flags & M_FILE)
		hclass = HC_FILE;
	else if (flags & M_EFILE)
		hclass = HC_MBOX;
	else if (flags & M_CMD)
		hclass = HC_CMD;
	else if (flags & M_ALIAS)
		hclass = HC_ALIAS;
	else if (flags & M_COMMAND)
		hclass = HC_COMMAND;
	else if (flags & M_PATTERN)
		hclass = HC_PATTERN;
	else
		hclass = HC_OTHER;

	for(;;)
	{
		if (redraw && !pass)
		{
			if (redraw == M_REDRAW_INIT)
			{
				/* Go to end of line */
				state->curpos = state->lastchar;
				state->begin = width_ceiling(state->wbuf, state->lastchar, my_wcswidth(state->wbuf, state->lastchar) - width + 1);
			}
			if (state->curpos < state->begin ||
			    my_wcswidth(state->wbuf + state->begin, state->curpos - state->begin) >= width)
				state->begin = width_ceiling(state->wbuf, state->lastchar, my_wcswidth(state->wbuf, state->curpos) - width / 2);
			move(y, x);
			w = 0;
			for(i = state->begin; i < state->lastchar; i++)
			{
				w += my_wcwidth(state->wbuf[i]);
				if (w > width)
					break;
				my_addwch(state->wbuf[i]);
			}
			clrtoeol();
			move(y, x + my_wcswidth(state->wbuf + state->begin, state->curpos - state->begin));
		}
		mutt_refresh();

		if ((ch = km_dokey(MENU_EDITOR)) == -1)
		{
			rv = -1;
			goto bye;
		}

		if (ch != OP_NULL)
		{
			first = 0;
			if (ch != OP_EDITOR_COMPLETE && ch != OP_EDITOR_COMPLETE_QUERY)
				state->tabs = 0;
			redraw = M_REDRAW_LINE;
			switch(ch)
			{
			case OP_EDITOR_HISTORY_UP:
				state->curpos = state->lastchar;
				if (mutt_history_at_scratch(hclass))
				{
					my_wcstombs(buf, buflen, state->wbuf, state->curpos);
					mutt_history_save_scratch(hclass, buf);
				}
				replace_part(state, 0, mutt_history_prev(hclass));
				redraw = M_REDRAW_INIT;
				break;

			case OP_EDITOR_HISTORY_DOWN:
				state->curpos = state->lastchar;
				if (mutt_history_at_scratch(hclass))
				{
					my_wcstombs(buf, buflen, state->wbuf, state->curpos);
					mutt_history_save_scratch(hclass, buf);
				}
				replace_part(state, 0, mutt_history_next(hclass));
				redraw = M_REDRAW_INIT;
				break;

			case OP_EDITOR_BACKSPACE:
				if (state->curpos == 0)
					BEEP();
				else
				{
					i = state->curpos;
					while(i && COMB_CHAR(state->wbuf[i - 1]))
						--i;
					if (i)
						--i;
					memmove(state->wbuf + i, state->wbuf + state->curpos,(state->lastchar - state->curpos) * sizeof(wchar_t));
					state->lastchar -= state->curpos - i;
					state->curpos = i;
				}
				break;

			case OP_EDITOR_BOL:
				state->curpos = 0;
				break;

			case OP_EDITOR_EOL:
				redraw= M_REDRAW_INIT;
				break;

			case OP_EDITOR_KILL_LINE:
				state->curpos = state->lastchar = 0;
				break;

			case OP_EDITOR_KILL_EOL:
				state->lastchar = state->curpos;
				break;

			case OP_EDITOR_BACKWARD_CHAR:
				if (state->curpos == 0)
					BEEP();
				else
				{
					while(state->curpos && COMB_CHAR(state->wbuf[state->curpos - 1]))
						state->curpos--;
					if (state->curpos)
						state->curpos--;
				}
				break;

			case OP_EDITOR_FORWARD_CHAR:
				if (state->curpos == state->lastchar)
					BEEP();
				else
				{
					++state->curpos;
					while(state->curpos < state->lastchar && COMB_CHAR(state->wbuf[state->curpos]))
						++state->curpos;
				}
				break;

			case OP_EDITOR_BACKWARD_WORD:
				if (state->curpos == 0)
					BEEP();
				else
				{
					while(state->curpos && iswspace(state->wbuf[state->curpos - 1]))
						--state->curpos;
					while(state->curpos && !iswspace(state->wbuf[state->curpos - 1]))
						--state->curpos;
				}
				break;

			case OP_EDITOR_FORWARD_WORD:
				if (state->curpos == state->lastchar)
					BEEP();
				else
				{
					while(state->curpos < state->lastchar && iswspace(state->wbuf[state->curpos]))
						++state->curpos;
					while(state->curpos < state->lastchar && !iswspace(state->wbuf[state->curpos]))
						++state->curpos;
				}
				break;

			case OP_EDITOR_CAPITALIZE_WORD:
			case OP_EDITOR_UPCASE_WORD:
			case OP_EDITOR_DOWNCASE_WORD:
				if (state->curpos == state->lastchar)
				{
					BEEP();
					break;
				}
				while(state->curpos && !iswspace(state->wbuf[state->curpos]))
					--state->curpos;
				while(state->curpos < state->lastchar && iswspace(state->wbuf[state->curpos]))
					++state->curpos;
				while(state->curpos < state->lastchar && !iswspace(state->wbuf[state->curpos]))
				{
					if (ch == OP_EDITOR_DOWNCASE_WORD)
						state->wbuf[state->curpos] = towlower(state->wbuf[state->curpos]);
					else
					{
						state->wbuf[state->curpos] = towupper(state->wbuf[state->curpos]);
						if (ch == OP_EDITOR_CAPITALIZE_WORD)
							ch = OP_EDITOR_DOWNCASE_WORD;
					}
					state->curpos++;
				}
				break;

			case OP_EDITOR_DELETE_CHAR:
				if (state->curpos == state->lastchar)
					BEEP();
				else
				{
					i = state->curpos;
					while(i < state->lastchar && COMB_CHAR(state->wbuf[i]))
						++i;
					if (i < state->lastchar)
						++i;
					while(i < state->lastchar && COMB_CHAR(state->wbuf[i]))
						++i;
					memmove(state->wbuf + state->curpos, state->wbuf + i,(state->lastchar - i) * sizeof(wchar_t));
					state->lastchar -= i - state->curpos;
				}
				break;

			case OP_EDITOR_KILL_WORD:
				/* delete to beginning of word */
				if (state->curpos != 0)
				{
					i = state->curpos;
					while(i && iswspace(state->wbuf[i - 1]))
						--i;
					if (i)
					{
						if (iswalnum(state->wbuf[i - 1]))
						{
							for(--i; i && iswalnum(state->wbuf[i - 1]); i--)
								;
						}
						else
							--i;
					}
					memmove(state->wbuf + i, state->wbuf + state->curpos,
						(state->lastchar - state->curpos) * sizeof(wchar_t));
					state->lastchar += i - state->curpos;
					state->curpos = i;
				}
				break;

			case OP_EDITOR_KILL_EOW:
				/* delete to end of word */

				/* first skip over whitespace */
				for(i = state->curpos;
				     i < state->lastchar && iswspace(state->wbuf[i]); i++)
					;

				/* if there are any characters left.. */
				if (i < state->lastchar)
				{
					/* if the current character is alphanumeric.. */
					if (iswalnum(state->wbuf[i]))
					{
						/* skip over the rest of the word consistent of only alphanumerics */
						for(; i < state->lastchar && iswalnum(state->wbuf[i]); i++)
							;
					}
					else
					{
						/* skip over one non-alphanumeric character */
						++i;
					}
				}

				memmove(state->wbuf + state->curpos, state->wbuf + i,
					(state->lastchar - i) * sizeof(wchar_t));
				state->lastchar += state->curpos - i;
				break;

			case OP_EDITOR_BUFFY_CYCLE:
				if (flags & M_EFILE)
				{
					first = 1; /* clear input if user types a real key later */
					my_wcstombs(buf, buflen, state->wbuf, state->curpos);
					mutt_buffy(buf, buflen);
					state->curpos = state->lastchar = my_mbstowcs(&state->wbuf, &state->wbuflen, 0, buf);
					break;
				}
				else if (!(flags & M_FILE))
					goto self_insert;
				/* fall through to completion routine(M_FILE) */

			case OP_EDITOR_COMPLETE:
			case OP_EDITOR_COMPLETE_QUERY:
				state->tabs++;
				if (flags & M_CMD)
				{
					for(i = state->curpos; i && !is_shell_char(state->wbuf[i-1]); i--)
						;
					my_wcstombs(buf, buflen, state->wbuf + i, state->curpos - i);
					if (tempbuf && templen == state->lastchar - i &&
					    !memcmp(tempbuf, state->wbuf + i,(state->lastchar - i) * sizeof(wchar_t)))
					{
						mutt_select_file(buf, buflen,(flags & M_EFILE) ? M_SEL_FOLDER : 0);
						set_bit(options, OPTNEEDREDRAW);
						if (*buf)
							replace_part(state, i, buf);
						rv = 1;
						goto bye;
					}
					if (!mutt_complete(buf, buflen))
					{
						templen = state->lastchar - i;
						safe_realloc(&tempbuf, templen * sizeof(wchar_t));
					}
					else
						BEEP();

					replace_part(state, i, buf);
				}
				else if (flags & M_ALIAS && ch == OP_EDITOR_COMPLETE)
				{
					/* invoke the alias-menu to get more addresses */
					for(i = state->curpos; i && state->wbuf[i-1] != ',' &&
						     state->wbuf[i-1] != ':'; i--)
						;
					for(; i < state->lastchar && state->wbuf[i] == ' '; i++)
						;
					my_wcstombs(buf, buflen, state->wbuf + i, state->curpos - i);
					r = mutt_alias_complete(buf, buflen);
					replace_part(state, i, buf);
					if (!r)
					{
						rv = 1;
						goto bye;
					}
					break;
				}
				else if (flags & M_ALIAS && ch == OP_EDITOR_COMPLETE_QUERY)
				{
					/* invoke the query-menu to get more addresses */
					if ((i = state->curpos))
					{
						for(; i && state->wbuf[i - 1] != ','; i--)
							;
						for(; i < state->curpos && state->wbuf[i] == ' '; i++)
							;
					}

					my_wcstombs(buf, buflen, state->wbuf + i, state->curpos - i);
					mutt_query_complete(buf, buflen);
					replace_part(state, i, buf);

					rv = 1;
					goto bye;
				}
				else if (flags & M_COMMAND)
				{
					my_wcstombs(buf, buflen, state->wbuf, state->curpos);
					i = strlen(buf);
					if (i && buf[i - 1] == '=' &&
					    mutt_var_value_complete(buf, buflen, i))
						state->tabs = 0;
					else if (!mutt_command_complete(buf, buflen, i, state->tabs))
						BEEP();
					replace_part(state, 0, buf);
				}
				else if (flags &(M_FILE | M_EFILE))
				{
					my_wcstombs(buf, buflen, state->wbuf, state->curpos);

					/* see if the path has changed from the last time */
					if ((!tempbuf && !state->lastchar) ||(tempbuf && templen == state->lastchar &&
									       !memcmp(tempbuf, state->wbuf, state->lastchar * sizeof(wchar_t))))
					{
						_mutt_select_file(buf, buflen,
								  ((flags & M_EFILE) ? M_SEL_FOLDER : 0) |(multiple ? M_SEL_MULTI : 0),
								   files, numfiles);
						set_bit(options, OPTNEEDREDRAW);
						if (*buf)
						{
							mutt_pretty_mailbox(buf, buflen);
							if (!pass)
								mutt_history_add(hclass, buf, 1);
							rv = 0;
							goto bye;
						}

						/* file selection cancelled */
						rv = 1;
						goto bye;
					}

					if (!mutt_complete(buf, buflen))
					{
						templen = state->lastchar;
						safe_realloc(&tempbuf, templen * sizeof(wchar_t));
						memcpy(tempbuf, state->wbuf, templen * sizeof(wchar_t));
					}
					else
						BEEP(); /* let the user know that nothing matched */
					replace_part(state, 0, buf);
				}
				else
					goto self_insert;
				break;

			case OP_EDITOR_QUOTE_CHAR:
			{
				struct event event;
				/*ADDCH(LastKey);*/
				event = mutt_getch();
				if (event.ch >= 0)
				{
					LastKey = event.ch;
					goto self_insert;
				}
			}

			case OP_EDITOR_TRANSPOSE_CHARS:
				if (state->lastchar < 2)
					BEEP();
				else
				{
					wchar_t t;

					if (state->curpos == 0)
						state->curpos = 2;
					else if (state->curpos < state->lastchar)
						++state->curpos;

					t = state->wbuf[state->curpos - 2];
					state->wbuf[state->curpos - 2] = state->wbuf[state->curpos - 1];
					state->wbuf[state->curpos - 1] = t;
				}
				break;

			default:
				BEEP();
			}
		}
		else
		{

		self_insert:

			state->tabs = 0;
			/* use the raw keypress */
			ch = LastKey;

#if KEY_ENTER
			/* treat ENTER the same as RETURN */
			if (ch == KEY_ENTER)
				ch = '\r';
#endif

			/* quietly ignore all other function keys */
			if (ch & ~0xff)
				continue;

			/* gather the octets into a wide character */
			{
				char c;
				size_t k;

				c = ch;
				k = mbrtowc(&wc, &c, 1, &mbstate);
				if (k ==(size_t)(-2))
					continue;
				else if (k && k != 1)
				{
					memset(&mbstate, 0, sizeof(mbstate));
					continue;
				}
			}

			if (first &&(flags & M_CLEAR))
			{
				first = 0;
				if (IsWPrint(wc)) /* why? */
					state->curpos = state->lastchar = 0;
			}

			if (wc == '\r' || wc == '\n')
			{
				/* Convert from wide characters */
				my_wcstombs(buf, buflen, state->wbuf, state->lastchar);
				if (!pass)
					mutt_history_add(hclass, buf, 1);

				if (multiple)
				{
					char **tfiles;
					*numfiles = 1;
					tfiles = safe_calloc(*numfiles, sizeof(char *));
					mutt_expand_path(buf, buflen);
					tfiles[0] = safe_strdup(buf);
					*files = tfiles;
				}
				rv = 0;
				goto bye;
			}
			else if (wc &&(wc < ' ' || IsWPrint(wc))) /* why? */
			{
				if (state->lastchar >= state->wbuflen)
				{
					state->wbuflen = state->lastchar + 20;
					safe_realloc(&state->wbuf, state->wbuflen * sizeof(wchar_t));
				}
				memmove(state->wbuf + state->curpos + 1, state->wbuf + state->curpos,(state->lastchar - state->curpos) * sizeof(wchar_t));
				state->wbuf[state->curpos++] = wc;
				state->lastchar++;
			}
			else
			{
				mutt_flushinp();
				BEEP();
			}
		}
	}

bye:

	mutt_reset_history_state(hclass);
	safe_free(&tempbuf);
	return rv;
}