ncurses 5.7 - patch 20090530
[ncurses.git] / ncurses / base / lib_insch.c
index d813740e43c5f92bbb578d35a41fe6c10760973d..e88b945a741fe178d946694093173bfac4c7daee 100644 (file)
 #include <curses.priv.h>
 #include <ctype.h>
 
-MODULE_ID("$Id: lib_insch.c,v 1.27 2009/04/18 23:53:33 tom Exp $")
+MODULE_ID("$Id: lib_insch.c,v 1.29 2009/05/30 16:45:16 tom Exp $")
 
 /*
  * Insert the given character, updating the current location to simplify
  * inserting a string.
  */
 NCURSES_EXPORT(int)
-_nc_insert_ch(WINDOW *win, chtype ch)
+_nc_insert_ch(SCREEN *sp, WINDOW *win, chtype ch)
 {
     int code = OK;
     NCURSES_CH_T wch;
     int count;
     NCURSES_CONST char *s;
-#if NCURSES_SP_FUNCS || USE_REENTRANT
-    SCREEN *sp = _nc_screen_of(win);
-#endif
     int tabsize =
 #if USE_REENTRANT
     sp->_TABSIZE
@@ -66,10 +63,11 @@ _nc_insert_ch(WINDOW *win, chtype ch)
     TABSIZE
 #endif
      ;
+
     switch (ch) {
     case '\t':
        for (count = (tabsize - (win->_curx % tabsize)); count > 0; count--) {
-           if ((code = _nc_insert_ch(win, ' ')) != OK)
+           if ((code = _nc_insert_ch(sp, win, ' ')) != OK)
                break;
        }
        break;
@@ -85,7 +83,9 @@ _nc_insert_ch(WINDOW *win, chtype ch)
               WINDOW_EXT(win, addch_used) == 0 &&
 #endif
               is8bits(ChCharOf(ch)) &&
-              isprint(ChCharOf(ch))) {
+              (isprint(ChCharOf(ch)) ||
+               (ChAttrOf(ch) & A_ALTCHARSET) ||
+               (sp != 0 && sp->_legacy_coding && !iscntrl(ChCharOf(ch))))) {
            if (win->_curx <= win->_maxx) {
                struct ldat *line = &(win->_line[win->_cury]);
                NCURSES_CH_T *end = &(line->text[win->_curx]);
@@ -104,7 +104,7 @@ _nc_insert_ch(WINDOW *win, chtype ch)
        } else if (is8bits(ChCharOf(ch)) && iscntrl(ChCharOf(ch))) {
            s = NCURSES_SP_NAME(unctrl) (NCURSES_SP_ARGx ChCharOf(ch));
            while (*s != '\0') {
-               code = _nc_insert_ch(win, ChAttrOf(ch) | UChar(*s));
+               code = _nc_insert_ch(sp, win, ChAttrOf(ch) | UChar(*s));
                if (code != OK)
                    break;
                ++s;
@@ -124,11 +124,16 @@ _nc_insert_ch(WINDOW *win, chtype ch)
                /* handle EILSEQ */
                if (is8bits(ch)) {
                    s = NCURSES_SP_NAME(unctrl) (NCURSES_SP_ARGx ChCharOf(ch));
-                   while (*s != '\0') {
-                       code = _nc_insert_ch(win, ChAttrOf(ch) | UChar(*s));
-                       if (code != OK)
-                           break;
-                       ++s;
+                   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;
                    }
                } else {
                    code = ERR;
@@ -154,7 +159,7 @@ winsch(WINDOW *win, chtype c)
        oy = win->_cury;
        ox = win->_curx;
 
-       code = _nc_insert_ch(win, c);
+       code = _nc_insert_ch(_nc_screen_of(win), win, c);
 
        win->_curx = ox;
        win->_cury = oy;