ncurses 5.9 - patch 20110514

[ncurses.git] / progs / tabs.c

diff --git a/progs/tabs.c b/progs/tabs.c
index aafaa2d8f37cf702a224a1ca8ad44e7889b7783e..e0e042b3e5223adf0775738926a71cbe5e5779fb 100644 (file)
--- a/progs/tabs.c
+++ b/progs/tabs.c
@@ -1,5 +1,5 @@
 /****************************************************************************
- * Copyright (c) 2008,2009 Free Software Foundation, Inc.                   *
+ * Copyright (c) 2008-2010,2011 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            *
@@ -37,7 +37,7 @@
 #define USE_LIBTINFO
 #include <progs.priv.h>
 
-MODULE_ID("$Id: tabs.c,v 1.16 2009/10/10 16:15:37 tom Exp $")
+MODULE_ID("$Id: tabs.c,v 1.20 2011/05/14 22:34:36 tom Exp $")
 
 static void usage(void) GCC_NORETURN;
 
@@ -90,9 +90,10 @@ decode_tabs(const char *tab_list)
                value += (ch - '0');
            } else if (ch == ',') {
                result[n] = value + prior;
-               if (n > 0 && value <= result[n - 1]) {
+               if (n > 0 && result[n] <= result[n - 1]) {
                    fprintf(stderr,
-                           "tab-stops are not in increasing order\n");
+                           "tab-stops are not in increasing order: %d %d\n",
+                           value, result[n - 1]);
                    free(result);
                    result = 0;
                    break;
@@ -122,7 +123,7 @@ decode_tabs(const char *tab_list)
        /*
         * Add the last value, if any.
         */
-       result[n++] = value;
+       result[n++] = value + prior;
        result[n] = 0;
     }
     return result;
@@ -226,7 +227,7 @@ comma_is_needed(const char *source)
     bool result = FALSE;
 
     if (source != 0) {
-       unsigned len = strlen(source);
+       size_t len = strlen(source);
        if (len != 0)
            result = (source[len - 1] != ',');
     } else {
@@ -250,7 +251,7 @@ add_to_tab_list(char **append, const char *value)
 
     if (copied != 0 && *copied != '\0') {
        const char *comma = ",";
-       unsigned need = 1 + strlen(copied);
+       size_t need = 1 + strlen(copied);
 
        if (*copied == ',')
            comma = "";
@@ -290,7 +291,7 @@ legal_tab_list(const char *program, const char *tab_list)
            int n, ch;
            for (n = 0; tab_list[n] != '\0'; ++n) {
                ch = UChar(tab_list[n]);
-               if (!(isdigit(ch) || ch == ',')) {
+               if (!(isdigit(ch) || ch == ',' || ch == '+')) {
                    fprintf(stderr,
                            "%s: unexpected character found '%c'\n",
                            program, ch);
@@ -448,7 +449,11 @@ main(int argc, char *argv[])
                    mar_list = option;
                    break;
                default:
-                   usage();
+                   /* special case of relative stops separated by spaces? */
+                   if (option == argv[n] + 1) {
+                       tab_list = add_to_tab_list(&append, argv[n]);
+                   }
+                   break;
                }
            }
            break;
@@ -461,7 +466,6 @@ main(int argc, char *argv[])
                }
            }
            tab_list = add_to_tab_list(&append, option);
-           option += ((int) strlen(option)) - 1;
            break;
        }
     }