ncurses 4.2

[ncurses.git] / ncurses / lib_tparm.c

diff --git a/ncurses/lib_tparm.c b/ncurses/lib_tparm.c
index 26b5691ad95da39747c15fb99f6fae24c42d7066..02125b67966eb6d7aa600f6a14987b7230904098 100644 (file)
--- a/ncurses/lib_tparm.c
+++ b/ncurses/lib_tparm.c
@@ -1,23 +1,35 @@
-
-/***************************************************************************
-*                            COPYRIGHT NOTICE                              *
-****************************************************************************
-*                ncurses is copyright (C) 1992-1995                        *
-*                          Zeyd M. Ben-Halim                               *
-*                          zmbenhal@netcom.com                             *
-*                          Eric S. Raymond                                 *
-*                          esr@snark.thyrsus.com                           *
-*                                                                          *
-*        Permission is hereby granted to reproduce and distribute ncurses  *
-*        by any means and for any fee, whether alone or as part of a       *
-*        larger distribution, in source or in binary form, PROVIDED        *
-*        this notice is included with any such distribution, and is not    *
-*        removed from any of its header files. Mention of ncurses in any   *
-*        applications linked with it is highly appreciated.                *
-*                                                                          *
-*        ncurses comes AS IS with no warranty, implied or expressed.       *
-*                                                                          *
-***************************************************************************/
+/****************************************************************************
+ * Copyright (c) 1998 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            *
+ * "Software"), to deal in the Software without restriction, including      *
+ * without limitation the rights to use, copy, modify, merge, publish,      *
+ * distribute, distribute with modifications, sublicense, and/or sell       *
+ * copies of the Software, and to permit persons to whom the Software is    *
+ * furnished to do so, subject to the following conditions:                 *
+ *                                                                          *
+ * The above copyright notice and this permission notice shall be included  *
+ * in all copies or substantial portions of the Software.                   *
+ *                                                                          *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS  *
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF               *
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.   *
+ * IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,   *
+ * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR    *
+ * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR    *
+ * THE USE OR OTHER DEALINGS IN THE SOFTWARE.                               *
+ *                                                                          *
+ * Except as contained in this notice, the name(s) of the above copyright   *
+ * holders shall not be used in advertising or otherwise to promote the     *
+ * sale, use or other dealings in this Software without prior written       *
+ * authorization.                                                           *
+ ****************************************************************************/
+
+/****************************************************************************
+ *  Author: Zeyd M. Ben-Halim <zmbenhal@netcom.com> 1992,1995               *
+ *     and: Eric S. Raymond <esr@snark.thyrsus.com>                         *
+ ****************************************************************************/
 
 
 /*
@@ -29,7 +41,7 @@
 
 #include <term.h>
 
-MODULE_ID("$Id: lib_tparm.c,v 1.18 1997/04/26 18:37:50 tom Exp $")
+MODULE_ID("$Id: lib_tparm.c,v 1.22 1998/02/11 12:13:54 tom Exp $")
 
 /*
  *     char *
@@ -150,6 +162,8 @@ static void save_number(const char *fmt, int number)
 static inline void save_char(int c)
 {
        static char text[2];
+       if (c == 0)
+               c = 0200;
        text[0] = c;
        save_text(text);
 }
@@ -174,14 +188,16 @@ static inline char *spop(void)
 
 static inline char *tparam_internal(const char *string, va_list ap)
 {
+#define NUM_VARS 26
 int    param[9];
 int    popcount;
-int    variable[26];
+int    variable[NUM_VARS];
 char   len;
 int    number;
 int    level;
 int    x, y;
 int    i;
+int    varused = -1;
 register const char *cp;
 
        out_used = 0;
@@ -329,14 +345,22 @@ register const char *cp;
 
                        case 'P':
                                string++;
-                               if (*string >= 'a'  &&  *string <= 'z')
-                                       variable[*string - 'a'] = npop();
+                               i = (*string - 'a');
+                               if (i >= 0 && i < NUM_VARS) {
+                                       while (varused < i)
+                                               variable[++varused] = 0;
+                                       variable[i] = npop();
+                               }
                                break;
 
                        case 'g':
                                string++;
-                               if (*string >= 'a'  &&  *string <= 'z')
-                                       npush(variable[*string - 'a']);
+                               i = (*string - 'a');
+                               if (i >= 0 && i < NUM_VARS) {
+                                       while (varused < i)
+                                               variable[++varused] = 0;
+                                       npush(variable[i]);
+                               }
                                break;
 
                        case '\'':
@@ -496,6 +520,11 @@ register const char *cp;
                string++;
        } /* endwhile (*string) */
 
+       if (out_buff == 0)
+               out_buff = calloc(1,1);
+       if (out_used == 0)
+               *out_buff = '\0';
+
        T((T_RETURN("%s"), _nc_visbuf(out_buff)));
        return(out_buff);
 }
@@ -530,4 +559,4 @@ char *result = 0;
        va_end(ap);
        return result;
 }
-#endif /* __UNUSED */
+#endif /* __UNUSED__ */