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/* $OpenBSD: lib_insch.c,v 1.3 2010/01/12 23:22:05 nicm Exp $ */ |
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/**************************************************************************** |
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* Copyright (c) 1998-2005,2008 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: Zeyd M. Ben-Halim <zmbenhal@netcom.com> 1992,1995 * |
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* and: Eric S. Raymond <esr@snark.thyrsus.com> * |
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* and: Sven Verdoolaege * |
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* and: Thomas E. Dickey * |
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****************************************************************************/ |
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/* |
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** lib_insch.c |
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** |
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** The routine winsch(). |
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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_insch.c,v 1.3 2010/01/12 23:22:05 nicm Exp $") |
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/* |
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* Insert the given character, updating the current location to simplify |
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* inserting a string. |
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*/ |
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NCURSES_EXPORT(int) |
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_nc_insert_ch(WINDOW *win, chtype ch) |
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{ |
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int code = OK; |
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NCURSES_CH_T wch; |
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int count; |
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NCURSES_CONST char *s; |
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switch (ch) { |
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case '\t': |
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for (count = (TABSIZE - (win->_curx % TABSIZE)); count > 0; count--) { |
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if ((code = _nc_insert_ch(win, ' ')) != OK) |
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break; |
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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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case '\b': |
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SetChar2(wch, ch); |
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_nc_waddch_nosync(win, wch); |
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break; |
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default: |
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if ( |
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#if USE_WIDEC_SUPPORT |
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WINDOW_EXT(win, addch_used) == 0 && |
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#endif |
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is8bits(ChCharOf(ch)) && |
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isprint(ChCharOf(ch))) { |
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if (win->_curx <= win->_maxx) { |
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struct ldat *line = &(win->_line[win->_cury]); |
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NCURSES_CH_T *end = &(line->text[win->_curx]); |
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NCURSES_CH_T *temp1 = &(line->text[win->_maxx]); |
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NCURSES_CH_T *temp2 = temp1 - 1; |
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SetChar2(wch, ch); |
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CHANGED_TO_EOL(line, win->_curx, win->_maxx); |
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while (temp1 > end) |
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*temp1-- = *temp2--; |
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*temp1 = _nc_render(win, wch); |
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win->_curx++; |
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} |
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} else if (is8bits(ChCharOf(ch)) && iscntrl(ChCharOf(ch))) { |
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s = unctrl(ChCharOf(ch)); |
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while (*s != '\0') { |
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code = _nc_insert_ch(win, ChAttrOf(ch) | UChar(*s)); |
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if (code != OK) |
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break; |
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++s; |
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} |
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} |
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#if USE_WIDEC_SUPPORT |
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else { |
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/* |
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* Handle multibyte characters here |
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*/ |
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SetChar2(wch, ch); |
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wch = _nc_render(win, wch); |
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count = _nc_build_wch(win, &wch); |
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if (count > 0) { |
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code = wins_wch(win, &wch); |
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} else if (count == -1) { |
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/* handle EILSEQ */ |
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if (is8bits(ch)) { |
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s = unctrl(ChCharOf(ch)); |
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while (*s != '\0') { |
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code = _nc_insert_ch(win, ChAttrOf(ch) | UChar(*s)); |
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if (code != OK) |
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break; |
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++s; |
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} |
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} else { |
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code = ERR; |
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} |
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} |
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} |
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#endif |
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break; |
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} |
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return code; |
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} |
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NCURSES_EXPORT(int) |
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winsch(WINDOW *win, chtype c) |
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{ |
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NCURSES_SIZE_T oy; |
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NCURSES_SIZE_T ox; |
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int code = ERR; |
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T((T_CALLED("winsch(%p, %s)"), win, _tracechtype(c))); |
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if (win != 0) { |
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oy = win->_cury; |
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ox = win->_curx; |
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code = _nc_insert_ch(win, c); |
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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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} |
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returnCode(code); |
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} |