472 lines
12 KiB
C
472 lines
12 KiB
C
/* Public Domain Curses */
|
|
|
|
#include <curspriv.h>
|
|
|
|
RCSID("$Id: getstr.c,v 1.51 2008/07/14 04:24:51 wmcbrine Exp $")
|
|
|
|
/*man-start**************************************************************
|
|
|
|
Name: getstr
|
|
|
|
Synopsis:
|
|
int getstr(char *str);
|
|
int wgetstr(WINDOW *win, char *str);
|
|
int mvgetstr(int y, int x, char *str);
|
|
int mvwgetstr(WINDOW *win, int y, int x, char *str);
|
|
int getnstr(char *str, int n);
|
|
int wgetnstr(WINDOW *win, char *str, int n);
|
|
int mvgetnstr(int y, int x, char *str, int n);
|
|
int mvwgetnstr(WINDOW *win, int y, int x, char *str, int n);
|
|
|
|
int get_wstr(wint_t *wstr);
|
|
int wget_wstr(WINDOW *win, wint_t *wstr);
|
|
int mvget_wstr(int y, int x, wint_t *wstr);
|
|
int mvwget_wstr(WINDOW *win, int, int, wint_t *wstr);
|
|
int getn_wstr(wint_t *wstr, int n);
|
|
int wgetn_wstr(WINDOW *win, wint_t *wstr, int n);
|
|
int mvgetn_wstr(int y, int x, wint_t *wstr, int n);
|
|
int mvwgetn_wstr(WINDOW *win, int y, int x, wint_t *wstr, int n);
|
|
|
|
Description:
|
|
These routines call wgetch() repeatedly to build a string,
|
|
interpreting erase and kill characters along the way, until a
|
|
newline or carriage return is received. When PDCurses is built
|
|
with wide-character support enabled, the narrow-character
|
|
functions convert the wgetch()'d values into a multibyte string
|
|
in the current locale before returning it. The resulting string
|
|
is placed in the area pointed to by *str. The routines with n as
|
|
the last argument read at most n characters.
|
|
|
|
Note that there's no way to know how long the buffer passed to
|
|
wgetstr() is, so use wgetnstr() to avoid buffer overflows.
|
|
|
|
Return Value:
|
|
This functions return ERR on failure or any other value on
|
|
success.
|
|
|
|
Portability X/Open BSD SYS V
|
|
getstr Y Y Y
|
|
wgetstr Y Y Y
|
|
mvgetstr Y Y Y
|
|
mvwgetstr Y Y Y
|
|
getnstr Y - 4.0
|
|
wgetnstr Y - 4.0
|
|
mvgetnstr Y - -
|
|
mvwgetnstr Y - -
|
|
get_wstr Y
|
|
wget_wstr Y
|
|
mvget_wstr Y
|
|
mvwget_wstr Y
|
|
getn_wstr Y
|
|
wgetn_wstr Y
|
|
mvgetn_wstr Y
|
|
mvwgetn_wstr Y
|
|
|
|
**man-end****************************************************************/
|
|
|
|
#define MAXLINE 255
|
|
|
|
int wgetnstr(WINDOW *win, char *str, int n)
|
|
{
|
|
#ifdef PDC_WIDE
|
|
wchar_t wstr[MAXLINE + 1];
|
|
|
|
if (n < 0 || n > MAXLINE)
|
|
n = MAXLINE;
|
|
|
|
if (wgetn_wstr(win, (wint_t *)wstr, n) == ERR)
|
|
return ERR;
|
|
|
|
return PDC_wcstombs(str, wstr, n);
|
|
#else
|
|
int ch, i, num, x, chars;
|
|
char *p;
|
|
bool stop, oldecho, oldcbreak, oldnodelay;
|
|
|
|
PDC_LOG(("wgetnstr() - called\n"));
|
|
|
|
if (!win || !str)
|
|
return ERR;
|
|
|
|
chars = 0;
|
|
p = str;
|
|
stop = FALSE;
|
|
|
|
x = win->_curx;
|
|
|
|
oldcbreak = SP->cbreak; /* remember states */
|
|
oldecho = SP->echo;
|
|
oldnodelay = win->_nodelay;
|
|
|
|
SP->echo = FALSE; /* we do echo ourselves */
|
|
cbreak(); /* ensure each key is returned immediately */
|
|
win->_nodelay = FALSE; /* don't return -1 */
|
|
|
|
wrefresh(win);
|
|
|
|
while (!stop)
|
|
{
|
|
ch = wgetch(win);
|
|
|
|
switch (ch)
|
|
{
|
|
|
|
case '\t':
|
|
ch = ' ';
|
|
num = TABSIZE - (win->_curx - x) % TABSIZE;
|
|
for (i = 0; i < num; i++)
|
|
{
|
|
if (chars < n)
|
|
{
|
|
if (oldecho)
|
|
waddch(win, ch);
|
|
*p++ = ch;
|
|
++chars;
|
|
}
|
|
else
|
|
beep();
|
|
}
|
|
break;
|
|
|
|
case _ECHAR: /* CTRL-H -- Delete character */
|
|
if (p > str)
|
|
{
|
|
if (oldecho)
|
|
waddstr(win, "\b \b");
|
|
ch = (unsigned char)(*--p);
|
|
if ((ch < ' ') && (oldecho))
|
|
waddstr(win, "\b \b");
|
|
chars--;
|
|
}
|
|
break;
|
|
|
|
case _DLCHAR: /* CTRL-U -- Delete line */
|
|
while (p > str)
|
|
{
|
|
if (oldecho)
|
|
waddstr(win, "\b \b");
|
|
ch = (unsigned char)(*--p);
|
|
if ((ch < ' ') && (oldecho))
|
|
waddstr(win, "\b \b");
|
|
}
|
|
chars = 0;
|
|
break;
|
|
|
|
case _DWCHAR: /* CTRL-W -- Delete word */
|
|
|
|
while ((p > str) && (*(p - 1) == ' '))
|
|
{
|
|
if (oldecho)
|
|
waddstr(win, "\b \b");
|
|
|
|
--p; /* remove space */
|
|
chars--;
|
|
}
|
|
while ((p > str) && (*(p - 1) != ' '))
|
|
{
|
|
if (oldecho)
|
|
waddstr(win, "\b \b");
|
|
|
|
ch = (unsigned char)(*--p);
|
|
if ((ch < ' ') && (oldecho))
|
|
waddstr(win, "\b \b");
|
|
chars--;
|
|
}
|
|
break;
|
|
|
|
case '\n':
|
|
case '\r':
|
|
stop = TRUE;
|
|
if (oldecho)
|
|
waddch(win, '\n');
|
|
break;
|
|
|
|
default:
|
|
if (chars < n)
|
|
{
|
|
if (!SP->key_code && ch < 0x100)
|
|
{
|
|
*p++ = ch;
|
|
if (oldecho)
|
|
waddch(win, ch);
|
|
chars++;
|
|
}
|
|
}
|
|
else
|
|
beep();
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
wrefresh(win);
|
|
}
|
|
|
|
*p = '\0';
|
|
|
|
SP->echo = oldecho; /* restore old settings */
|
|
SP->cbreak = oldcbreak;
|
|
win->_nodelay = oldnodelay;
|
|
|
|
return OK;
|
|
#endif
|
|
}
|
|
|
|
int getstr(char *str)
|
|
{
|
|
PDC_LOG(("getstr() - called\n"));
|
|
|
|
return wgetnstr(stdscr, str, MAXLINE);
|
|
}
|
|
|
|
int wgetstr(WINDOW *win, char *str)
|
|
{
|
|
PDC_LOG(("wgetstr() - called\n"));
|
|
|
|
return wgetnstr(win, str, MAXLINE);
|
|
}
|
|
|
|
int mvgetstr(int y, int x, char *str)
|
|
{
|
|
PDC_LOG(("mvgetstr() - called\n"));
|
|
|
|
if (move(y, x) == ERR)
|
|
return ERR;
|
|
|
|
return wgetnstr(stdscr, str, MAXLINE);
|
|
}
|
|
|
|
int mvwgetstr(WINDOW *win, int y, int x, char *str)
|
|
{
|
|
PDC_LOG(("mvwgetstr() - called\n"));
|
|
|
|
if (wmove(win, y, x) == ERR)
|
|
return ERR;
|
|
|
|
return wgetnstr(win, str, MAXLINE);
|
|
}
|
|
|
|
int getnstr(char *str, int n)
|
|
{
|
|
PDC_LOG(("getnstr() - called\n"));
|
|
|
|
return wgetnstr(stdscr, str, n);
|
|
}
|
|
|
|
int mvgetnstr(int y, int x, char *str, int n)
|
|
{
|
|
PDC_LOG(("mvgetnstr() - called\n"));
|
|
|
|
if (move(y, x) == ERR)
|
|
return ERR;
|
|
|
|
return wgetnstr(stdscr, str, n);
|
|
}
|
|
|
|
int mvwgetnstr(WINDOW *win, int y, int x, char *str, int n)
|
|
{
|
|
PDC_LOG(("mvwgetnstr() - called\n"));
|
|
|
|
if (wmove(win, y, x) == ERR)
|
|
return ERR;
|
|
|
|
return wgetnstr(win, str, n);
|
|
}
|
|
|
|
#ifdef PDC_WIDE
|
|
int wgetn_wstr(WINDOW *win, wint_t *wstr, int n)
|
|
{
|
|
int ch, i, num, x, chars;
|
|
wint_t *p;
|
|
bool stop, oldecho, oldcbreak, oldnodelay;
|
|
|
|
PDC_LOG(("wgetn_wstr() - called\n"));
|
|
|
|
if (!win || !wstr)
|
|
return ERR;
|
|
|
|
chars = 0;
|
|
p = wstr;
|
|
stop = FALSE;
|
|
|
|
x = win->_curx;
|
|
|
|
oldcbreak = SP->cbreak; /* remember states */
|
|
oldecho = SP->echo;
|
|
oldnodelay = win->_nodelay;
|
|
|
|
SP->echo = FALSE; /* we do echo ourselves */
|
|
cbreak(); /* ensure each key is returned immediately */
|
|
win->_nodelay = FALSE; /* don't return -1 */
|
|
|
|
wrefresh(win);
|
|
|
|
while (!stop)
|
|
{
|
|
ch = wgetch(win);
|
|
|
|
switch (ch)
|
|
{
|
|
|
|
case '\t':
|
|
ch = ' ';
|
|
num = TABSIZE - (win->_curx - x) % TABSIZE;
|
|
for (i = 0; i < num; i++)
|
|
{
|
|
if (chars < n)
|
|
{
|
|
if (oldecho)
|
|
waddch(win, ch);
|
|
*p++ = ch;
|
|
++chars;
|
|
}
|
|
else
|
|
beep();
|
|
}
|
|
break;
|
|
|
|
case _ECHAR: /* CTRL-H -- Delete character */
|
|
if (p > wstr)
|
|
{
|
|
if (oldecho)
|
|
waddstr(win, "\b \b");
|
|
ch = *--p;
|
|
if ((ch < ' ') && (oldecho))
|
|
waddstr(win, "\b \b");
|
|
chars--;
|
|
}
|
|
break;
|
|
|
|
case _DLCHAR: /* CTRL-U -- Delete line */
|
|
while (p > wstr)
|
|
{
|
|
if (oldecho)
|
|
waddstr(win, "\b \b");
|
|
ch = *--p;
|
|
if ((ch < ' ') && (oldecho))
|
|
waddstr(win, "\b \b");
|
|
}
|
|
chars = 0;
|
|
break;
|
|
|
|
case _DWCHAR: /* CTRL-W -- Delete word */
|
|
|
|
while ((p > wstr) && (*(p - 1) == ' '))
|
|
{
|
|
if (oldecho)
|
|
waddstr(win, "\b \b");
|
|
|
|
--p; /* remove space */
|
|
chars--;
|
|
}
|
|
while ((p > wstr) && (*(p - 1) != ' '))
|
|
{
|
|
if (oldecho)
|
|
waddstr(win, "\b \b");
|
|
|
|
ch = *--p;
|
|
if ((ch < ' ') && (oldecho))
|
|
waddstr(win, "\b \b");
|
|
chars--;
|
|
}
|
|
break;
|
|
|
|
case '\n':
|
|
case '\r':
|
|
stop = TRUE;
|
|
if (oldecho)
|
|
waddch(win, '\n');
|
|
break;
|
|
|
|
default:
|
|
if (chars < n)
|
|
{
|
|
if (!SP->key_code)
|
|
{
|
|
*p++ = ch;
|
|
if (oldecho)
|
|
waddch(win, ch);
|
|
chars++;
|
|
}
|
|
}
|
|
else
|
|
beep();
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
wrefresh(win);
|
|
}
|
|
|
|
*p = '\0';
|
|
|
|
SP->echo = oldecho; /* restore old settings */
|
|
SP->cbreak = oldcbreak;
|
|
win->_nodelay = oldnodelay;
|
|
|
|
return OK;
|
|
}
|
|
|
|
int get_wstr(wint_t *wstr)
|
|
{
|
|
PDC_LOG(("get_wstr() - called\n"));
|
|
|
|
return wgetn_wstr(stdscr, wstr, MAXLINE);
|
|
}
|
|
|
|
int wget_wstr(WINDOW *win, wint_t *wstr)
|
|
{
|
|
PDC_LOG(("wget_wstr() - called\n"));
|
|
|
|
return wgetn_wstr(win, wstr, MAXLINE);
|
|
}
|
|
|
|
int mvget_wstr(int y, int x, wint_t *wstr)
|
|
{
|
|
PDC_LOG(("mvget_wstr() - called\n"));
|
|
|
|
if (move(y, x) == ERR)
|
|
return ERR;
|
|
|
|
return wgetn_wstr(stdscr, wstr, MAXLINE);
|
|
}
|
|
|
|
int mvwget_wstr(WINDOW *win, int y, int x, wint_t *wstr)
|
|
{
|
|
PDC_LOG(("mvwget_wstr() - called\n"));
|
|
|
|
if (wmove(win, y, x) == ERR)
|
|
return ERR;
|
|
|
|
return wgetn_wstr(win, wstr, MAXLINE);
|
|
}
|
|
|
|
int getn_wstr(wint_t *wstr, int n)
|
|
{
|
|
PDC_LOG(("getn_wstr() - called\n"));
|
|
|
|
return wgetn_wstr(stdscr, wstr, n);
|
|
}
|
|
|
|
int mvgetn_wstr(int y, int x, wint_t *wstr, int n)
|
|
{
|
|
PDC_LOG(("mvgetn_wstr() - called\n"));
|
|
|
|
if (move(y, x) == ERR)
|
|
return ERR;
|
|
|
|
return wgetn_wstr(stdscr, wstr, n);
|
|
}
|
|
|
|
int mvwgetn_wstr(WINDOW *win, int y, int x, wint_t *wstr, int n)
|
|
{
|
|
PDC_LOG(("mvwgetn_wstr() - called\n"));
|
|
|
|
if (wmove(win, y, x) == ERR)
|
|
return ERR;
|
|
|
|
return wgetn_wstr(win, wstr, n);
|
|
}
|
|
#endif
|