ncurses 6.1 - patch 20180825

[ncurses.git] / test / filter.c

diff --git a/test/filter.c b/test/filter.c
index 90a74a6cec9bc2790ed2cfed70630d1b8c12e587..e070620b27201996ab4cb77d1bd90b33c1de2091 100644 (file)
--- a/test/filter.c
+++ b/test/filter.c
@@ -1,5 +1,5 @@
 /****************************************************************************
- * Copyright (c) 1998-2014,2016 Free Software Foundation, Inc.              *
+ * Copyright (c) 1998-2016,2017 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            *
@@ -29,7 +29,7 @@
 /*
  * Author:  Thomas E. Dickey 1998
  *
- * $Id: filter.c,v 1.28 2016/09/10 21:23:23 tom Exp $
+ * $Id: filter.c,v 1.32 2017/09/28 23:40:39 tom Exp $
  *
  * An example of the 'filter()' function in ncurses, this program prompts
  * for commands and executes them (like a command shell).  It illustrates
@@ -105,7 +105,7 @@ new_command(char *buffer, int length, int underline, bool clocked, bool polled)
     if (polled) {
        bool done = FALSE;
        bool first = TRUE;
-       int y, x;
+       int y = 0, x = 0;
        int n;
        int mark = 0;
        int used = 0;
@@ -253,7 +253,7 @@ new_command(char *buffer, int length, int underline, bool clocked, bool polled)
     }
     attroff(underline);
     attroff(A_BOLD);
-    printw("\n");
+    refresh();
 
     return code;
 }
@@ -308,6 +308,9 @@ usage(void)
        ,"  -a   suppress xterm alternate-screen by amending smcup/rmcup"
 #endif
        ,"  -c   show current time on prompt line with \"Command\""
+#if HAVE_USE_DEFAULT_COLORS
+       ,"  -d   invoke use_default_colors"
+#endif
        ,"  -i   use initscr() rather than newterm()"
        ,"  -p   poll for individual characters rather than using getnstr"
     };
@@ -327,12 +330,15 @@ main(int argc, char *argv[])
     bool a_option = FALSE;
 #endif
     bool c_option = FALSE;
+#if HAVE_USE_DEFAULT_COLORS
+    bool d_option = FALSE;
+#endif
     bool i_option = FALSE;
     bool p_option = FALSE;
 
     setlocale(LC_ALL, "");
 
-    while ((ch = getopt(argc, argv, "acip")) != -1) {
+    while ((ch = getopt(argc, argv, "adcip")) != -1) {
        switch (ch) {
 #ifdef NCURSES_VERSION
        case 'a':
@@ -342,6 +348,11 @@ main(int argc, char *argv[])
        case 'c':
            c_option = TRUE;
            break;
+#if HAVE_USE_DEFAULT_COLORS
+       case 'd':
+           d_option = TRUE;
+           break;
+#endif
        case 'i':
            i_option = TRUE;
            break;
@@ -359,7 +370,10 @@ main(int argc, char *argv[])
     if (i_option) {
        initscr();
     } else {
-       (void) newterm((char *) 0, stdout, stdin);
+       if (newterm((char *) 0, stdout, stdin) == 0) {
+           fprintf(stderr, "cannot initialize terminal\n");
+           ExitProgram(EXIT_FAILURE);
+       }
     }
 #ifdef NCURSES_VERSION
     if (a_option) {
@@ -373,7 +387,7 @@ main(int argc, char *argv[])
        int background = COLOR_BLACK;
        start_color();
 #if HAVE_USE_DEFAULT_COLORS
-       if (use_default_colors() != ERR)
+       if (d_option && (use_default_colors() != ERR))
            background = -1;
 #endif
        init_pair(1, COLOR_CYAN, (short) background);