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ncurses 6.1 - patch 20190914
[ncurses.git] / ncurses / tinfo / tinfo_driver.c
diff --git a/ncurses/tinfo/tinfo_driver.c b/ncurses/tinfo/tinfo_driver.c
index 8d471d184e6ba0d6def6c877965772c001ba5613..450cded0561e42d1a48bba70be87e87412ea894d 100644 (file)
--- a/ncurses/tinfo/tinfo_driver.c
+++ b/ncurses/tinfo/tinfo_driver.c
@@ -1,5 +1,5 @@
 /****************************************************************************
- * Copyright (c) 2008-2016,2017 Free Software Foundation, Inc.              *
+ * Copyright (c) 2008-2018,2019 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            *
@@ -51,7 +51,7 @@
 # endif
 #endif
 
-MODULE_ID("$Id: tinfo_driver.c,v 1.54 2017/06/17 22:22:03 tom Exp $")
+MODULE_ID("$Id: tinfo_driver.c,v 1.66 2019/08/10 18:36:08 tom Exp $")
 
 /*
  * SCO defines TIOCGSIZE and the corresponding struct.  Other systems (SunOS,
@@ -144,6 +144,8 @@ get_baudrate(TERMINAL *termp)
 #undef SETUP_FAIL
 #define SETUP_FAIL FALSE
 
+#define NO_COPY {}
+
 static bool
 drv_CanHandle(TERMINAL_CONTROL_BLOCK * TCB, const char *tname, int *errret)
 {
@@ -162,7 +164,9 @@ drv_CanHandle(TERMINAL_CONTROL_BLOCK * TCB, const char *tname, int *errret)
 
 #if (NCURSES_USE_DATABASE || NCURSES_USE_TERMCAP)
     status = _nc_setup_tinfo(tname, &TerminalType(termp));
+    T(("_nc_setup_tinfo returns %d", status));
 #else
+    T(("no database available"));
     status = TGETENT_NO;
 #endif
 
@@ -171,6 +175,7 @@ drv_CanHandle(TERMINAL_CONTROL_BLOCK * TCB, const char *tname, int *errret)
        const TERMTYPE2 *fallback = _nc_fallback2(tname);
 
        if (fallback) {
+           T(("found fallback entry"));
            TerminalType(termp) = *fallback;
            status = TGETENT_YES;
        }
@@ -179,11 +184,12 @@ drv_CanHandle(TERMINAL_CONTROL_BLOCK * TCB, const char *tname, int *errret)
     if (status != TGETENT_YES) {
        NCURSES_SP_NAME(del_curterm) (NCURSES_SP_ARGx termp);
        if (status == TGETENT_ERR) {
-           _nc_free_termtype2(&TerminalType(termp));
            ret_error0(status, "terminals database is inaccessible\n");
        } else if (status == TGETENT_NO) {
-           _nc_free_termtype2(&TerminalType(termp));
-           ret_error1(status, "unknown terminal type.\n", tname);
+           ret_error1(status, "unknown terminal type.\n",
+                      tname, NO_COPY);
+       } else {
+           ret_error0(status, "unexpected return-code\n");
        }
     }
     result = TRUE;
@@ -206,6 +212,14 @@ drv_CanHandle(TERMINAL_CONTROL_BLOCK * TCB, const char *tname, int *errret)
     if (sp == 0 && NC_ISATTY(termp->Filedes)) {
        get_baudrate(termp);
     }
+#if NCURSES_EXT_NUMBERS
+#define cleanup_termtype() \
+    _nc_free_termtype2(&TerminalType(termp)); \
+    _nc_free_termtype(&termp->type)
+#else
+#define cleanup_termtype() \
+    _nc_free_termtype2(&TerminalType(termp))
+#endif
 
     if (generic_type) {
        /*
@@ -215,16 +229,19 @@ drv_CanHandle(TERMINAL_CONTROL_BLOCK * TCB, const char *tname, int *errret)
        if ((VALID_STRING(cursor_address)
             || (VALID_STRING(cursor_down) && VALID_STRING(cursor_home)))
            && VALID_STRING(clear_screen)) {
-           _nc_free_termtype2(&TerminalType(termp));
-           ret_error1(TGETENT_YES, "terminal is not really generic.\n", tname);
+           cleanup_termtype();
+           ret_error1(TGETENT_YES, "terminal is not really generic.\n",
+                      tname, NO_COPY);
        } else {
-           _nc_free_termtype2(&TerminalType(termp));
-           ret_error1(TGETENT_NO, "I need something more specific.\n", tname);
+           cleanup_termtype();
+           ret_error1(TGETENT_NO, "I need something more specific.\n",
+                      tname, NO_COPY);
        }
     }
     if (hard_copy) {
-       _nc_free_termtype2(&TerminalType(termp));
-       ret_error1(TGETENT_YES, "I can't handle hardcopy terminals.\n", tname);
+       cleanup_termtype();
+       ret_error1(TGETENT_YES, "I can't handle hardcopy terminals.\n",
+                  tname, NO_COPY);
     }
 
     returnBool(result);
@@ -888,11 +905,8 @@ drv_initmouse(TERMINAL_CONTROL_BLOCK * TCB)
 
     /* we know how to recognize mouse events under "xterm" */
     if (sp != 0) {
-       if (key_mouse != 0) {
-           if (!strcmp(key_mouse, xterm_kmous)
-               || strstr(SP_TERMTYPE term_names, "xterm") != 0) {
-               init_xterm_mouse(sp);
-           }
+       if (NonEmpty(key_mouse)) {
+           init_xterm_mouse(sp);
        } else if (strstr(SP_TERMTYPE term_names, "xterm") != 0) {
            if (_nc_add_to_try(&(sp->_keytry), xterm_kmous, KEY_MOUSE) == OK)
                init_xterm_mouse(sp);
@@ -1018,12 +1032,18 @@ drv_setfilter(TERMINAL_CONTROL_BLOCK * TCB)
 {
     AssertTCB();
 
-    clear_screen = 0;
-    cursor_down = parm_down_cursor = 0;
-    cursor_address = 0;
-    cursor_up = parm_up_cursor = 0;
-    row_address = 0;
-    cursor_home = carriage_return;
+    /* *INDENT-EQLS* */
+    clear_screen     = ABSENT_STRING;
+    cursor_address   = ABSENT_STRING;
+    cursor_down      = ABSENT_STRING;
+    cursor_up        = ABSENT_STRING;
+    parm_down_cursor = ABSENT_STRING;
+    parm_up_cursor   = ABSENT_STRING;
+    row_address      = ABSENT_STRING;
+    cursor_home      = carriage_return;
+
+    if (back_color_erase)
+       clr_eos = ABSENT_STRING;
 }
 
 static void
@@ -1070,8 +1090,13 @@ drv_initacs(TERMINAL_CONTROL_BLOCK * TCB, chtype *real_map, chtype *fake_map)
        while (i + 1 < length) {
            if (acs_chars[i] != 0 && UChar(acs_chars[i]) < ACS_LEN) {
                real_map[UChar(acs_chars[i])] = UChar(acs_chars[i + 1]) | A_ALTCHARSET;
-               if (sp != 0)
+               T(("#%d real_map[%s] = %s",
+                  (int) i,
+                  _tracechar(UChar(acs_chars[i])),
+                  _tracechtype(real_map[UChar(acs_chars[i])])));
+               if (sp != 0) {
                    sp->_screen_acs_map[UChar(acs_chars[i])] = TRUE;
+               }
            }
            i += 2;
        }
@@ -1101,7 +1126,6 @@ drv_initacs(TERMINAL_CONTROL_BLOCK * TCB, chtype *real_map, chtype *fake_map)
                   ? "DIFF"
                   : "SAME"),
                _nc_visbuf(show));
-
        _nc_unlock_global(tracef);
     }
 #endif /* TRACE */
@@ -1318,23 +1342,29 @@ drv_keyok(TERMINAL_CONTROL_BLOCK * TCB, int c, int flag)
        unsigned ch = (unsigned) c;
        if (flag) {
            while ((s = _nc_expand_try(sp->_key_ok,
-                                      ch, &count, (size_t) 0)) != 0
-                  && _nc_remove_key(&(sp->_key_ok), ch)) {
-               code = _nc_add_to_try(&(sp->_keytry), s, ch);
-               free(s);
-               count = 0;
-               if (code != OK)
-                   break;
+                                      ch, &count, (size_t) 0)) != 0) {
+               if (_nc_remove_key(&(sp->_key_ok), ch)) {
+                   code = _nc_add_to_try(&(sp->_keytry), s, ch);
+                   free(s);
+                   count = 0;
+                   if (code != OK)
+                       break;
+               } else {
+                   free(s);
+               }
            }
        } else {
            while ((s = _nc_expand_try(sp->_keytry,
-                                      ch, &count, (size_t) 0)) != 0
-                  && _nc_remove_key(&(sp->_keytry), ch)) {
-               code = _nc_add_to_try(&(sp->_key_ok), s, ch);
-               free(s);
-               count = 0;
-               if (code != OK)
-                   break;
+                                      ch, &count, (size_t) 0)) != 0) {
+               if (_nc_remove_key(&(sp->_keytry), ch)) {
+                   code = _nc_add_to_try(&(sp->_key_ok), s, ch);
+                   free(s);
+                   count = 0;
+                   if (code != OK)
+                       break;
+               } else {
+                   free(s);
+               }
            }
        }
     }
ncurses, with patches starting at ncurses-5.6; new users should use https://github.com/ThomasDickey/ncurses-snapshots/