643 lines
15 KiB
C
643 lines
15 KiB
C
/****************************************************************************
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* apps/graphics/pdcurses/pdc_getstr.c
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* Public Domain Curses
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* RCSID("$Id: getstr.c,v 1.51 2008/07/14 04:24:51 wmcbrine Exp $")
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*
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* Copyright (C) 2017 Gregory Nutt. All rights reserved.
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* Adapted by: Gregory Nutt <gnutt@nuttx.org>
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*
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* Adapted from the original public domain pdcurses by Gregory Nutt and
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* released as part of NuttX under the 3-clause BSD license:
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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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*
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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
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* the documentation and/or other materials provided with the
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* distribution.
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* 3. Neither the name NuttX nor the names of its contributors may be
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* used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
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* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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* 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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****************************************************************************/
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/* Name: getstr
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*
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* Synopsis:
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* int getstr(char *str);
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* int wgetstr(WINDOW *win, char *str);
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* int mvgetstr(int y, int x, char *str);
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* int mvwgetstr(WINDOW *win, int y, int x, char *str);
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* int getnstr(char *str, int n);
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* int wgetnstr(WINDOW *win, char *str, int n);
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* int mvgetnstr(int y, int x, char *str, int n);
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* int mvwgetnstr(WINDOW *win, int y, int x, char *str, int n);
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*
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* int get_wstr(wint_t *wstr);
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* int wget_wstr(WINDOW *win, wint_t *wstr);
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* int mvget_wstr(int y, int x, wint_t *wstr);
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* int mvwget_wstr(WINDOW *win, int, int, wint_t *wstr);
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* int getn_wstr(wint_t *wstr, int n);
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* int wgetn_wstr(WINDOW *win, wint_t *wstr, int n);
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* int mvgetn_wstr(int y, int x, wint_t *wstr, int n);
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* int mvwgetn_wstr(WINDOW *win, int y, int x, wint_t *wstr, int n);
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*
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* Description:
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* These routines call wgetch() repeatedly to build a string,
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* interpreting erase and kill characters along the way, until a
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* newline or carriage return is received. When PDCurses is built
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* with wide-character support enabled, the narrow-character
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* functions convert the wgetch()'d values into a multibyte string
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* in the current locale before returning it. The resulting string
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* is placed in the area pointed to by *str. The routines with n as
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* the last argument read at most n characters.
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*
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* Note that there's no way to know how long the buffer passed to
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* wgetstr() is, so use wgetnstr() to avoid buffer overflows.
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*
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* Return Value:
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* This functions return ERR on failure or any other value on
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* success.
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*
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* Portability X/Open BSD SYS V
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* getstr Y Y Y
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* wgetstr Y Y Y
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* mvgetstr Y Y Y
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* mvwgetstr Y Y Y
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* getnstr Y - 4.0
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* wgetnstr Y - 4.0
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* mvgetnstr Y - -
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* mvwgetnstr Y - -
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* get_wstr Y
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* wget_wstr Y
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* mvget_wstr Y
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* mvwget_wstr Y
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* getn_wstr Y
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* wgetn_wstr Y
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* mvgetn_wstr Y
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* mvwgetn_wstr Y
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*/
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/****************************************************************************
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* Included Files
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****************************************************************************/
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#include "curspriv.h"
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/****************************************************************************
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* Pre-processor Definitions
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****************************************************************************/
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#define MAXLINE 255
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/****************************************************************************
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* Public Functions
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****************************************************************************/
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int wgetnstr(WINDOW *win, char *str, int n)
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{
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#ifdef CONFIG_PDCURSES_WIDE
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wchar_t wstr[MAXLINE + 1];
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if (n < 0 || n > MAXLINE)
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{
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n = MAXLINE;
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}
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if (wgetn_wstr(win, (wint_t *) wstr, n) == ERR)
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{
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return ERR;
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}
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return PDC_wcstombs(str, wstr, n);
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#else
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int ch;
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int i;
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int num;
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int x;
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int chars;
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char *p;
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bool stop;
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bool oldecho;
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bool oldcbreak;
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bool oldnodelay;
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#ifdef CONFIG_PDCURSES_MULTITHREAD
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FAR struct pdc_context_s *ctx = PDC_ctx();
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#endif
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PDC_LOG(("wgetnstr() - called\n"));
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if (!win || !str)
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{
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return ERR;
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}
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chars = 0;
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p = str;
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stop = false;
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x = win->_curx;
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oldcbreak = SP->cbreak; /* Remember states */
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oldecho = SP->echo;
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oldnodelay = win->_nodelay;
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SP->echo = false; /* We do echo ourselves */
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cbreak(); /* Ensure each key is returned immediately */
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win->_nodelay = false; /* Don't return -1 */
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wrefresh(win);
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while (!stop)
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{
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ch = wgetch(win);
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switch (ch)
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{
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case '\t':
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ch = ' ';
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num = TABSIZE - (win->_curx - x) % TABSIZE;
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for (i = 0; i < num; i++)
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{
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if (chars < n)
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{
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if (oldecho)
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{
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waddch(win, ch);
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}
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*p++ = ch;
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++chars;
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}
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else
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{
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beep();
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}
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}
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break;
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case _ECHAR: /* CTRL-H -- Delete character */
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if (p > str)
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{
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if (oldecho)
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{
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waddstr(win, "\b \b");
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}
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ch = (unsigned char)(*--p);
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if ((ch < ' ') && (oldecho))
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{
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waddstr(win, "\b \b");
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}
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chars--;
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}
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break;
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case _DLCHAR: /* CTRL-U -- Delete line */
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while (p > str)
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{
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if (oldecho)
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{
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waddstr(win, "\b \b");
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}
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ch = (unsigned char)(*--p);
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if ((ch < ' ') && (oldecho))
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{
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waddstr(win, "\b \b");
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}
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}
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chars = 0;
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break;
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case _DWCHAR: /* CTRL-W -- Delete word */
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while ((p > str) && (*(p - 1) == ' '))
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{
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if (oldecho)
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{
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waddstr(win, "\b \b");
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}
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--p; /* Remove space */
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chars--;
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}
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while ((p > str) && (*(p - 1) != ' '))
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{
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if (oldecho)
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{
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waddstr(win, "\b \b");
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}
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ch = (unsigned char)(*--p);
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if ((ch < ' ') && (oldecho))
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{
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waddstr(win, "\b \b");
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}
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chars--;
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}
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break;
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case '\n':
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case '\r':
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stop = true;
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if (oldecho)
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{
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waddch(win, '\n');
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}
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break;
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default:
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if (chars < n)
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{
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if (!SP->key_code && ch < 0x100)
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{
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*p++ = ch;
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if (oldecho)
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{
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waddch(win, ch);
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}
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chars++;
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}
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}
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else
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{
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beep();
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}
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break;
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}
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wrefresh(win);
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}
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*p = '\0';
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SP->echo = oldecho; /* restore old settings */
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SP->cbreak = oldcbreak;
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win->_nodelay = oldnodelay;
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return OK;
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#endif
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}
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int getstr(char *str)
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{
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#ifdef CONFIG_PDCURSES_MULTITHREAD
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FAR struct pdc_context_s *ctx = PDC_ctx();
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#endif
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PDC_LOG(("getstr() - called\n"));
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return wgetnstr(stdscr, str, MAXLINE);
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}
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int wgetstr(WINDOW *win, char *str)
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{
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PDC_LOG(("wgetstr() - called\n"));
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return wgetnstr(win, str, MAXLINE);
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}
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int mvgetstr(int y, int x, char *str)
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{
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#ifdef CONFIG_PDCURSES_MULTITHREAD
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FAR struct pdc_context_s *ctx = PDC_ctx();
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#endif
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PDC_LOG(("mvgetstr() - called\n"));
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if (move(y, x) == ERR)
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{
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return ERR;
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}
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return wgetnstr(stdscr, str, MAXLINE);
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}
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int mvwgetstr(WINDOW *win, int y, int x, char *str)
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{
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PDC_LOG(("mvwgetstr() - called\n"));
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if (wmove(win, y, x) == ERR)
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{
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return ERR;
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}
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return wgetnstr(win, str, MAXLINE);
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}
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int getnstr(char *str, int n)
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{
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#ifdef CONFIG_PDCURSES_MULTITHREAD
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FAR struct pdc_context_s *ctx = PDC_ctx();
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#endif
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PDC_LOG(("getnstr() - called\n"));
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return wgetnstr(stdscr, str, n);
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}
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int mvgetnstr(int y, int x, char *str, int n)
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{
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#ifdef CONFIG_PDCURSES_MULTITHREAD
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FAR struct pdc_context_s *ctx = PDC_ctx();
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#endif
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PDC_LOG(("mvgetnstr() - called\n"));
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if (move(y, x) == ERR)
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{
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return ERR;
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}
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return wgetnstr(stdscr, str, n);
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}
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int mvwgetnstr(WINDOW *win, int y, int x, char *str, int n)
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{
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PDC_LOG(("mvwgetnstr() - called\n"));
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if (wmove(win, y, x) == ERR)
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{
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return ERR;
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}
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return wgetnstr(win, str, n);
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}
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#ifdef CONFIG_PDCURSES_WIDE
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int wgetn_wstr(WINDOW *win, wint_t *wstr, int n)
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{
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int ch;
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int i;
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int num;
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int x;
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int chars;
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char *p;
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bool stop;
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bool oldecho;
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bool oldcbreak;
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bool oldnodelay;
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#ifdef CONFIG_PDCURSES_MULTITHREAD
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FAR struct pdc_context_s *ctx = PDC_ctx();
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#endif
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PDC_LOG(("wgetn_wstr() - called\n"));
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if (!win || !wstr)
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{
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return ERR;
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}
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chars = 0;
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p = wstr;
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stop = false;
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x = win->_curx;
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oldcbreak = SP->cbreak; /* remember states */
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oldecho = SP->echo;
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oldnodelay = win->_nodelay;
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SP->echo = false; /* we do echo ourselves */
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cbreak(); /* ensure each key is returned immediately */
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win->_nodelay = false; /* don't return -1 */
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wrefresh(win);
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while (!stop)
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{
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ch = wgetch(win);
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switch (ch)
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{
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case '\t':
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ch = ' ';
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num = TABSIZE - (win->_curx - x) % TABSIZE;
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for (i = 0; i < num; i++)
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{
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if (chars < n)
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{
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if (oldecho)
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{
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waddch(win, ch);
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}
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*p++ = ch;
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++chars;
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}
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else
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{
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beep();
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}
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}
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break;
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case _ECHAR: /* CTRL-H -- Delete character */
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if (p > wstr)
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{
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if (oldecho)
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{
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waddstr(win, "\b \b");
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}
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ch = *--p;
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if ((ch < ' ') && (oldecho))
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{
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waddstr(win, "\b \b");
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}
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chars--;
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}
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break;
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case _DLCHAR: /* CTRL-U -- Delete line */
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while (p > wstr)
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{
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if (oldecho)
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{
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waddstr(win, "\b \b");
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}
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ch = *--p;
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if ((ch < ' ') && (oldecho))
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{
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waddstr(win, "\b \b");
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}
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}
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chars = 0;
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break;
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case _DWCHAR: /* CTRL-W -- Delete word */
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while ((p > wstr) && (*(p - 1) == ' '))
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{
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if (oldecho)
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{
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waddstr(win, "\b \b");
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}
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--p; /* remove space */
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chars--;
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}
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while ((p > wstr) && (*(p - 1) != ' '))
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{
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if (oldecho)
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{
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waddstr(win, "\b \b");
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}
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ch = *--p;
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if ((ch < ' ') && (oldecho))
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{
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waddstr(win, "\b \b");
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}
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chars--;
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}
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break;
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case '\n':
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case '\r':
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stop = true;
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if (oldecho)
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{
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waddch(win, '\n');
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}
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break;
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default:
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if (chars < n)
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{
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if (!SP->key_code)
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{
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*p++ = ch;
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if (oldecho)
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{
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waddch(win, ch);
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}
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chars++;
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}
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}
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else
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{
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beep();
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}
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break;
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}
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wrefresh(win);
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}
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*p = '\0';
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SP->echo = oldecho; /* restore old settings */
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SP->cbreak = oldcbreak;
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win->_nodelay = oldnodelay;
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return OK;
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}
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int get_wstr(wint_t *wstr)
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{
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#ifdef CONFIG_PDCURSES_MULTITHREAD
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FAR struct pdc_context_s *ctx = PDC_ctx();
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#endif
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PDC_LOG(("get_wstr() - called\n"));
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return wgetn_wstr(stdscr, wstr, MAXLINE);
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}
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int wget_wstr(WINDOW *win, wint_t *wstr)
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{
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PDC_LOG(("wget_wstr() - called\n"));
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return wgetn_wstr(win, wstr, MAXLINE);
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}
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int mvget_wstr(int y, int x, wint_t *wstr)
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{
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#ifdef CONFIG_PDCURSES_MULTITHREAD
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FAR struct pdc_context_s *ctx = PDC_ctx();
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#endif
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PDC_LOG(("mvget_wstr() - called\n"));
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if (move(y, x) == ERR)
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{
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return ERR;
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}
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return wgetn_wstr(stdscr, wstr, MAXLINE);
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}
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int mvwget_wstr(WINDOW *win, int y, int x, wint_t *wstr)
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{
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PDC_LOG(("mvwget_wstr() - called\n"));
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if (wmove(win, y, x) == ERR)
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{
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return ERR;
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}
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return wgetn_wstr(win, wstr, MAXLINE);
|
|
}
|
|
|
|
int getn_wstr(wint_t *wstr, int n)
|
|
{
|
|
#ifdef CONFIG_PDCURSES_MULTITHREAD
|
|
FAR struct pdc_context_s *ctx = PDC_ctx();
|
|
#endif
|
|
PDC_LOG(("getn_wstr() - called\n"));
|
|
|
|
return wgetn_wstr(stdscr, wstr, n);
|
|
}
|
|
|
|
int mvgetn_wstr(int y, int x, wint_t *wstr, int n)
|
|
{
|
|
#ifdef CONFIG_PDCURSES_MULTITHREAD
|
|
FAR struct pdc_context_s *ctx = PDC_ctx();
|
|
#endif
|
|
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
|