| /**************************************************************************** |
| * Copyright 2018-2020,2022 Thomas E. Dickey * |
| * Copyright 2004-2009,2016 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_insnstr.c |
| ** |
| ** The routine winsnstr(). |
| ** |
| */ |
| |
| #include <curses.priv.h> |
| #include <ctype.h> |
| |
| MODULE_ID("$Id: lib_insnstr.c,v 1.8 2022/05/21 17:35:15 tom Exp $") |
| |
| NCURSES_EXPORT(int) |
| winsnstr(WINDOW *win, const char *s, int n) |
| { |
| int code = ERR; |
| const unsigned char *str = (const unsigned char *) s; |
| |
| T((T_CALLED("winsnstr(%p,%s,%d)"), (void *) win, _nc_visbufn(s, n), n)); |
| |
| if (win != 0 && str != 0) { |
| SCREEN *sp = _nc_screen_of(win); |
| #if USE_WIDEC_SUPPORT |
| /* |
| * If the output contains "wide" (multibyte) characters, we will not |
| * really know the width of a character until we get the last byte |
| * of the character. Since the preceding byte(s) may use more columns |
| * on the screen than the final character, it is best to route the |
| * call to the wins_nwstr() function. |
| */ |
| if (sp->_screen_unicode) { |
| size_t nn = (n > 0) ? (size_t) n : strlen(s); |
| wchar_t *buffer = typeMalloc(wchar_t, nn + 1); |
| if (buffer != 0) { |
| mbstate_t state; |
| size_t n3; |
| init_mb(state); |
| n3 = mbstowcs(buffer, s, nn); |
| if (n3 != (size_t) (-1)) { |
| buffer[n3] = '\0'; |
| code = wins_nwstr(win, buffer, (int) n3); |
| } |
| free(buffer); |
| } |
| } |
| if (code == ERR) |
| #endif |
| { |
| NCURSES_SIZE_T oy = win->_cury; |
| NCURSES_SIZE_T ox = win->_curx; |
| const unsigned char *cp; |
| |
| for (cp = str; (n <= 0 || (cp - str) < n) && *cp; cp++) { |
| _nc_insert_ch(sp, win, (chtype) UChar(*cp)); |
| } |
| win->_curx = ox; |
| win->_cury = oy; |
| _nc_synchook(win); |
| code = OK; |
| } |
| } |
| returnCode(code); |
| } |