/****************************************************************************
- * Copyright (c) 1998,2000,2001 Free Software Foundation, Inc. *
+ * Copyright 2020 Thomas E. Dickey *
+ * Copyright 1998-2013,2016 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 *
/****************************************************************************
* Author: Zeyd M. Ben-Halim <zmbenhal@netcom.com> 1992,1995 *
* and: Eric S. Raymond <esr@snark.thyrsus.com> *
+ * and: Sven Verdoolaege *
+ * and: Thomas E. Dickey *
****************************************************************************/
/*
*/
#include <curses.priv.h>
+#include <ctype.h>
-MODULE_ID("$Id: lib_insch.c,v 1.15 2001/06/09 23:47:38 skimo Exp $")
+MODULE_ID("$Id: lib_insch.c,v 1.37 2020/02/02 23:34:34 tom Exp $")
+
+/*
+ * Insert the given character, updating the current location to simplify
+ * inserting a string.
+ */
+NCURSES_EXPORT(int)
+_nc_insert_ch(SCREEN *sp, WINDOW *win, chtype ch)
+{
+ int code = OK;
+ int ch8 = (int) ChCharOf(ch);
+ NCURSES_CH_T wch;
+ int count;
+ int tabsize = (
+#if USE_REENTRANT
+ sp->_TABSIZE
+#else
+ TABSIZE
+#endif
+ );
+
+ switch (ch) {
+ case '\t':
+ for (count = (tabsize - (win->_curx % tabsize)); count > 0; count--) {
+ if ((code = _nc_insert_ch(sp, win, ' ')) != OK)
+ break;
+ }
+ break;
+ case '\n':
+ case '\r':
+ case '\b':
+ SetChar2(wch, ch);
+ _nc_waddch_nosync(win, wch);
+ break;
+ default:
+ if (
+#if USE_WIDEC_SUPPORT
+ WINDOW_EXT(win, addch_used) == 0 &&
+#endif
+ (isprint(ch8) ||
+ (ChAttrOf(ch) & A_ALTCHARSET) ||
+ (sp != 0 && sp->_legacy_coding && !iscntrl(ch8)))) {
+ if (win->_curx <= win->_maxx) {
+ struct ldat *line = &(win->_line[win->_cury]);
+ NCURSES_CH_T *end = &(line->text[win->_curx]);
+ NCURSES_CH_T *temp1 = &(line->text[win->_maxx]);
+ NCURSES_CH_T *temp2 = temp1 - 1;
+
+ SetChar2(wch, ch);
+
+ CHANGED_TO_EOL(line, win->_curx, win->_maxx);
+ while (temp1 > end)
+ *temp1-- = *temp2--;
+
+ *temp1 = _nc_render(win, wch);
+ win->_curx++;
+ }
+ } else if (iscntrl(ch8)) {
+ NCURSES_CONST char *s;
+ s = NCURSES_SP_NAME(unctrl) (NCURSES_SP_ARGx (chtype) ch8);
+ while (*s != '\0') {
+ code = _nc_insert_ch(sp, win, ChAttrOf(ch) | UChar(*s));
+ if (code != OK)
+ break;
+ ++s;
+ }
+ }
+#if USE_WIDEC_SUPPORT
+ else {
+ /*
+ * Handle multibyte characters here
+ */
+ SetChar2(wch, ch);
+ wch = _nc_render(win, wch);
+ count = _nc_build_wch(win, &wch);
+ if (count > 0) {
+ code = _nc_insert_wch(win, &wch);
+ } else if (count == -1) {
+ NCURSES_CONST char *s;
+ /* handle EILSEQ */
+ s = NCURSES_SP_NAME(unctrl) (NCURSES_SP_ARGx (chtype) ch8);
+ if (strlen(s) > 1) {
+ while (*s != '\0') {
+ code = _nc_insert_ch(sp, win,
+ ChAttrOf(ch) | UChar(*s));
+ if (code != OK)
+ break;
+ ++s;
+ }
+ } else {
+ code = ERR;
+ }
+ }
+ }
+#endif
+ break;
+ }
+ return code;
+}
NCURSES_EXPORT(int)
winsch(WINDOW *win, chtype c)
{
int code = ERR;
- T((T_CALLED("winsch(%p, %s)"), win, _tracechtype(c)));
+ T((T_CALLED("winsch(%p, %s)"), (void *) win, _tracechtype(c)));
- if (win) {
- struct ldat *line = &(win->_line[win->_cury]);
- NCURSES_CH_T *end = &(line->text[win->_curx]);
- NCURSES_CH_T *temp1 = &(line->text[win->_maxx]);
- NCURSES_CH_T *temp2 = temp1 - 1;
- NCURSES_CH_T wch;
- SetChar2(wch, c);
+ if (win != 0) {
+ NCURSES_SIZE_T oy = win->_cury;
+ NCURSES_SIZE_T ox = win->_curx;
- CHANGED_TO_EOL(line, win->_curx, win->_maxx);
- while (temp1 > end)
- *temp1-- = *temp2--;
+ code = _nc_insert_ch(_nc_screen_of(win), win, c);
- *temp1 = _nc_render(win, wch);
- code = OK;
+ win->_curx = ox;
+ win->_cury = oy;
+ _nc_synchook(win);
}
returnCode(code);
}