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96 lines
3.9 KiB
C
96 lines
3.9 KiB
C
/****************************************************************************
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* Copyright 2018-2020,2022 Thomas E. Dickey *
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* Copyright 2004-2009,2016 Free Software Foundation, Inc. *
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* *
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* Permission is hereby granted, free of charge, to any person obtaining a *
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* copy of this software and associated documentation files (the *
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* "Software"), to deal in the Software without restriction, including *
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* without limitation the rights to use, copy, modify, merge, publish, *
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* distribute, distribute with modifications, sublicense, and/or sell *
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* copies of the Software, and to permit persons to whom the Software is *
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* furnished to do so, subject to the following conditions: *
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* *
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* The above copyright notice and this permission notice shall be included *
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* in all copies or substantial portions of the Software. *
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* *
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS *
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* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF *
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. *
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* IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, *
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* DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR *
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* OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR *
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* THE USE OR OTHER DEALINGS IN THE SOFTWARE. *
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* *
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* Except as contained in this notice, the name(s) of the above copyright *
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* holders shall not be used in advertising or otherwise to promote the *
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* sale, use or other dealings in this Software without prior written *
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* authorization. *
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****************************************************************************/
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/****************************************************************************
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* Author: Thomas E. Dickey *
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****************************************************************************/
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/*
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** lib_insnstr.c
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**
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** The routine winsnstr().
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**
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*/
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#include "curses.priv.h"
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#include <ctype.h>
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MODULE_ID("$Id: lib_insnstr.c,v 1.8 2022/05/21 17:35:15 tom Exp $")
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NCURSES_EXPORT(int)
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winsnstr(WINDOW *win, const char *s, int n)
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{
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int code = ERR;
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const unsigned char *str = (const unsigned char *) s;
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T((T_CALLED("winsnstr(%p,%s,%d)"), (void *) win, _nc_visbufn(s, n), n));
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if (win != 0 && str != 0) {
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SCREEN *sp = _nc_screen_of(win);
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#if USE_WIDEC_SUPPORT
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/*
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* If the output contains "wide" (multibyte) characters, we will not
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* really know the width of a character until we get the last byte
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* of the character. Since the preceding byte(s) may use more columns
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* on the screen than the final character, it is best to route the
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* call to the wins_nwstr() function.
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*/
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if (sp->_screen_unicode) {
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size_t nn = (n > 0) ? (size_t) n : strlen(s);
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wchar_t *buffer = typeMalloc(wchar_t, nn + 1);
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if (buffer != 0) {
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mbstate_t state;
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size_t n3;
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init_mb(state);
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n3 = mbstowcs(buffer, s, nn);
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if (n3 != (size_t) (-1)) {
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buffer[n3] = '\0';
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code = wins_nwstr(win, buffer, (int) n3);
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}
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free(buffer);
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}
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}
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if (code == ERR)
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#endif
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{
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NCURSES_SIZE_T oy = win->_cury;
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NCURSES_SIZE_T ox = win->_curx;
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const unsigned char *cp;
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for (cp = str; (n <= 0 || (cp - str) < n) && *cp; cp++) {
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_nc_insert_ch(sp, win, (chtype) UChar(*cp));
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}
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win->_curx = ox;
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win->_cury = oy;
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_nc_synchook(win);
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code = OK;
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}
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}
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returnCode(code);
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}
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