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GCC Code Coverage Report

Directory:	./		Exec	Total	Coverage
File:	lib/libcurses/widechar/lib_get_wstr.c	Lines:	0	98	0.0 %
Date:	2017-11-07	Branches:	0	78	0.0 %


/* $OpenBSD: lib_get_wstr.c,v 1.1 2010/09/06 17:26:17 nicm Exp $ */

/****************************************************************************
 * Copyright (c) 2002-2004,2008 Free Software Foundation, Inc.              *
 *                                                                          *
 * Permission is hereby granted, free of charge, to any person obtaining a  *
 * copy of this software and associated documentation files (the            *
 * "Software"), to deal in the Software without restriction, including      *
 * without limitation the rights to use, copy, modify, merge, publish,      *
 * distribute, distribute with modifications, sublicense, and/or sell       *
 * copies of the Software, and to permit persons to whom the Software is    *
 * furnished to do so, subject to the following conditions:                 *
 *                                                                          *
 * The above copyright notice and this permission notice shall be included  *
 * in all copies or substantial portions of the Software.                   *
 *                                                                          *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS  *
 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF               *
 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.   *
 * IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,   *
 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR    *
 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR    *
 * THE USE OR OTHER DEALINGS IN THE SOFTWARE.                               *
 *                                                                          *
 * Except as contained in this notice, the name(s) of the above copyright   *
 * holders shall not be used in advertising or otherwise to promote the     *
 * sale, use or other dealings in this Software without prior written       *
 * authorization.                                                           *
 ****************************************************************************/

/****************************************************************************
 *  Author: Thomas E. Dickey                                                *
 ****************************************************************************/

/*
**	lib_get_wstr.c
**
**	The routine wgetn_wstr().
**
*/

#include <curses.priv.h>
#include <term.h>

MODULE_ID("$Id: lib_get_wstr.c,v 1.1 2010/09/06 17:26:17 nicm Exp $")

static int
wadd_wint(WINDOW *win, wint_t *src)
{
    cchar_t tmp;
    wchar_t wch[2];

    wch[0] = (wchar_t) (*src);
    wch[1] = 0;
    setcchar(&tmp, wch, A_NORMAL, 0, NULL);
    return wadd_wch(win, &tmp);
}

/*
 * This wipes out the last character, no matter whether it was a tab, control
 * or other character, and handles reverse wraparound.
 */
static wint_t *
WipeOut(WINDOW *win, int y, int x, wint_t *first, wint_t *last, bool echoed)
{
    if (last > first) {
	*--last = '\0';
	if (echoed) {
	    int y1 = win->_cury;
	    int x1 = win->_curx;
	    int n;

	    wmove(win, y, x);
	    for (n = 0; first[n] != 0; ++n) {
		wadd_wint(win, first + n);
	    }
	    getyx(win, y, x);
	    while (win->_cury < y1
		   || (win->_cury == y1 && win->_curx < x1))
		waddch(win, (chtype) ' ');

	    wmove(win, y, x);
	}
    }
    return last;
}

NCURSES_EXPORT(int)
wgetn_wstr(WINDOW *win, wint_t *str, int maxlen)
{
    SCREEN *sp = _nc_screen_of(win);
    TTY buf;
    bool oldnl, oldecho, oldraw, oldcbreak;
    wint_t erasec;
    wint_t killc;
    wint_t *oldstr = str;
    wint_t *tmpstr = str;
    wint_t ch;
    int y, x, code;

    T((T_CALLED("wgetn_wstr(%p,%p, %d)"), win, str, maxlen));

    if (!win)
	returnCode(ERR);

    _nc_get_tty_mode(&buf);

    oldnl = sp->_nl;
    oldecho = sp->_echo;
    oldraw = sp->_raw;
    oldcbreak = sp->_cbreak;
    nl();
    noecho();
    noraw();
    cbreak();

    erasec = (wint_t) erasechar();
    killc = (wint_t) killchar();

    getyx(win, y, x);

    if (is_wintouched(win) || (win->_flags & _HASMOVED))
	wrefresh(win);

    while ((code = wget_wch(win, &ch)) != ERR) {
	/*
	 * Map special characters into key-codes.
	 */
	if (ch == '\r')
	    ch = '\n';
	if (ch == '\n') {
	    code = KEY_CODE_YES;
	    ch = KEY_ENTER;
	}
	if (ch < KEY_MIN) {
	    if (ch == erasec) {
		ch = KEY_BACKSPACE;
		code = KEY_CODE_YES;
	    }
	    if (ch == killc) {
		ch = KEY_EOL;
		code = KEY_CODE_YES;
	    }
	}
	if (code == KEY_CODE_YES) {
	    /*
	     * Some terminals (the Wyse-50 is the most common) generate a \n
	     * from the down-arrow key.  With this logic, it's the user's
	     * choice whether to set kcud=\n for wget_wch(); terminating
	     * *getn_wstr() with \n should work either way.
	     */
	    if (ch == KEY_DOWN || ch == KEY_ENTER) {
		if (oldecho == TRUE
		    && win->_cury == win->_maxy
		    && win->_scroll)
		    wechochar(win, (chtype) '\n');
		break;
	    }
	    if (ch == KEY_LEFT || ch == KEY_BACKSPACE) {
		if (tmpstr > oldstr) {
		    tmpstr = WipeOut(win, y, x, oldstr, tmpstr, oldecho);
		}
	    } else if (ch == KEY_EOL) {
		while (tmpstr > oldstr) {
		    tmpstr = WipeOut(win, y, x, oldstr, tmpstr, oldecho);
		}
	    } else {
		beep();
	    }
	} else if (maxlen >= 0 && tmpstr - oldstr >= maxlen) {
	    beep();
	} else {
	    *tmpstr++ = ch;
	    *tmpstr = 0;
	    if (oldecho == TRUE) {
		int oldy = win->_cury;

		if (wadd_wint(win, tmpstr - 1) == ERR) {
		    /*
		     * We can't really use the lower-right corner for input,
		     * since it'll mess up bookkeeping for erases.
		     */
		    win->_flags &= ~_WRAPPED;
		    waddch(win, (chtype) ' ');
		    tmpstr = WipeOut(win, y, x, oldstr, tmpstr, oldecho);
		    continue;
		} else if (win->_flags & _WRAPPED) {
		    /*
		     * If the last waddch forced a wrap & scroll, adjust our
		     * reference point for erasures.
		     */
		    if (win->_scroll
			&& oldy == win->_maxy
			&& win->_cury == win->_maxy) {
			if (--y <= 0) {
			    y = 0;
			}
		    }
		    win->_flags &= ~_WRAPPED;
		}
		wrefresh(win);
	    }
	}
    }

    win->_curx = 0;
    win->_flags &= ~_WRAPPED;
    if (win->_cury < win->_maxy)
	win->_cury++;
    wrefresh(win);

    /* Restore with a single I/O call, to fix minor asymmetry between
     * raw/noraw, etc.
     */
    sp->_nl = oldnl;
    sp->_echo = oldecho;
    sp->_raw = oldraw;
    sp->_cbreak = oldcbreak;

    (void) _nc_set_tty_mode(&buf);

    *tmpstr = 0;
    if (code == ERR) {
	if (tmpstr == oldstr) {
	    *tmpstr++ = WEOF;
	    *tmpstr = 0;
	}
	returnCode(ERR);
    }

    T(("wgetn_wstr returns %s", _nc_viswibuf(oldstr)));

    returnCode(OK);
}


Generated by: GCOVR (Version 3.3)

Line	Branch	Exec	Source
1			/* $OpenBSD: lib_get_wstr.c,v 1.1 2010/09/06 17:26:17 nicm Exp $ */
2
3			/****************************************************************************
4			* Copyright (c) 2002-2004,2008 Free Software Foundation, Inc. *
5			* *
6			* Permission is hereby granted, free of charge, to any person obtaining a *
7			* copy of this software and associated documentation files (the *
8			* "Software"), to deal in the Software without restriction, including *
9			* without limitation the rights to use, copy, modify, merge, publish, *
10			* distribute, distribute with modifications, sublicense, and/or sell *
11			* copies of the Software, and to permit persons to whom the Software is *
12			* furnished to do so, subject to the following conditions: *
13			* *
14			* The above copyright notice and this permission notice shall be included *
15			* in all copies or substantial portions of the Software. *
16			* *
17			* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS *
18			* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF *
19			* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. *
20			* IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, *
21			* DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR *
22			* OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR *
23			* THE USE OR OTHER DEALINGS IN THE SOFTWARE. *
24			* *
25			* Except as contained in this notice, the name(s) of the above copyright *
26			* holders shall not be used in advertising or otherwise to promote the *
27			* sale, use or other dealings in this Software without prior written *
28			* authorization. *
29			****************************************************************************/
30
31			/****************************************************************************
32			* Author: Thomas E. Dickey *
33			****************************************************************************/
34
35			/*
36			** lib_get_wstr.c
37			**
38			** The routine wgetn_wstr().
39			**
40			*/
41
42			#include <curses.priv.h>
43			#include <term.h>
44
45			MODULE_ID("$Id: lib_get_wstr.c,v 1.1 2010/09/06 17:26:17 nicm Exp $")
46
47			static int
48			wadd_wint(WINDOW win, wint_t src)
49			{
50			cchar_t tmp;
51			wchar_t wch[2];
52
53			wch[0] = (wchar_t) (*src);
54			wch[1] = 0;
55			setcchar(&tmp, wch, A_NORMAL, 0, NULL);
56			return wadd_wch(win, &tmp);
57			}
58
59			/*
60			* This wipes out the last character, no matter whether it was a tab, control
61			* or other character, and handles reverse wraparound.
62			*/
63			static wint_t *
64			WipeOut(WINDOW win, int y, int x, wint_t first, wint_t *last, bool echoed)
65			{
66			if (last > first) {
67			*--last = '\0';
68			if (echoed) {
69			int y1 = win->_cury;
70			int x1 = win->_curx;
71			int n;
72
73			wmove(win, y, x);
74			for (n = 0; first[n] != 0; ++n) {
75			wadd_wint(win, first + n);
76			}
77			getyx(win, y, x);
78			while (win->_cury < y1
79			\|\| (win->_cury == y1 && win->_curx < x1))
80			waddch(win, (chtype) ' ');
81
82			wmove(win, y, x);
83			}
84			}
85			return last;
86			}
87
88			NCURSES_EXPORT(int)
89			wgetn_wstr(WINDOW win, wint_t str, int maxlen)
90			{
91			SCREEN *sp = _nc_screen_of(win);
92			TTY buf;
93			bool oldnl, oldecho, oldraw, oldcbreak;
94			wint_t erasec;
95			wint_t killc;
96			wint_t *oldstr = str;
97			wint_t *tmpstr = str;
98			wint_t ch;
99			int y, x, code;
100
101			T((T_CALLED("wgetn_wstr(%p,%p, %d)"), win, str, maxlen));
102
103			if (!win)
104			returnCode(ERR);
105
106			_nc_get_tty_mode(&buf);
107
108			oldnl = sp->_nl;
109			oldecho = sp->_echo;
110			oldraw = sp->_raw;
111			oldcbreak = sp->_cbreak;
112			nl();
113			noecho();
114			noraw();
115			cbreak();
116
117			erasec = (wint_t) erasechar();
118			killc = (wint_t) killchar();
119
120			getyx(win, y, x);
121
122			if (is_wintouched(win) \|\| (win->_flags & _HASMOVED))
123			wrefresh(win);
124
125			while ((code = wget_wch(win, &ch)) != ERR) {
126			/*
127			* Map special characters into key-codes.
128			*/
129			if (ch == '\r')
130			ch = '\n';
131			if (ch == '\n') {
132			code = KEY_CODE_YES;
133			ch = KEY_ENTER;
134			}
135			if (ch < KEY_MIN) {
136			if (ch == erasec) {
137			ch = KEY_BACKSPACE;
138			code = KEY_CODE_YES;
139			}
140			if (ch == killc) {
141			ch = KEY_EOL;
142			code = KEY_CODE_YES;
143			}
144			}
145			if (code == KEY_CODE_YES) {
146			/*
147			* Some terminals (the Wyse-50 is the most common) generate a \n
148			* from the down-arrow key. With this logic, it's the user's
149			* choice whether to set kcud=\n for wget_wch(); terminating
150			* *getn_wstr() with \n should work either way.
151			*/
152			if (ch == KEY_DOWN \|\| ch == KEY_ENTER) {
153			if (oldecho == TRUE
154			&& win->_cury == win->_maxy
155			&& win->_scroll)
156			wechochar(win, (chtype) '\n');
157			break;
158			}
159			if (ch == KEY_LEFT \|\| ch == KEY_BACKSPACE) {
160			if (tmpstr > oldstr) {
161			tmpstr = WipeOut(win, y, x, oldstr, tmpstr, oldecho);
162			}
163			} else if (ch == KEY_EOL) {
164			while (tmpstr > oldstr) {
165			tmpstr = WipeOut(win, y, x, oldstr, tmpstr, oldecho);
166			}
167			} else {
168			beep();
169			}
170			} else if (maxlen >= 0 && tmpstr - oldstr >= maxlen) {
171			beep();
172			} else {
173			*tmpstr++ = ch;
174			*tmpstr = 0;
175			if (oldecho == TRUE) {
176			int oldy = win->_cury;
177
178			if (wadd_wint(win, tmpstr - 1) == ERR) {
179			/*
180			* We can't really use the lower-right corner for input,
181			* since it'll mess up bookkeeping for erases.
182			*/
183			win->_flags &= ~_WRAPPED;
184			waddch(win, (chtype) ' ');
185			tmpstr = WipeOut(win, y, x, oldstr, tmpstr, oldecho);
186			continue;
187			} else if (win->_flags & _WRAPPED) {
188			/*
189			* If the last waddch forced a wrap & scroll, adjust our
190			* reference point for erasures.
191			*/
192			if (win->_scroll
193			&& oldy == win->_maxy
194			&& win->_cury == win->_maxy) {
195			if (--y <= 0) {
196			y = 0;
197			}
198			}
199			win->_flags &= ~_WRAPPED;
200			}
201			wrefresh(win);
202			}
203			}
204			}
205
206			win->_curx = 0;
207			win->_flags &= ~_WRAPPED;
208			if (win->_cury < win->_maxy)
209			win->_cury++;
210			wrefresh(win);
211
212			/* Restore with a single I/O call, to fix minor asymmetry between
213			* raw/noraw, etc.
214			*/
215			sp->_nl = oldnl;
216			sp->_echo = oldecho;
217			sp->_raw = oldraw;
218			sp->_cbreak = oldcbreak;
219
220			(void) _nc_set_tty_mode(&buf);
221
222			*tmpstr = 0;
223			if (code == ERR) {
224			if (tmpstr == oldstr) {
225			*tmpstr++ = WEOF;
226			*tmpstr = 0;
227			}
228			returnCode(ERR);
229			}
230
231			T(("wgetn_wstr returns %s", _nc_viswibuf(oldstr)));
232
233			returnCode(OK);
234			}