X-Git-Url: https://pintos-os.org/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=src%2Foutput%2Foptions.c;h=e0259f0936246e9f5f49a184de9239176eaf57e6;hb=c75794cffb05769b71a346af8513a3e8dde55f94;hp=918f718c0fb79df7a06d2bb19416581b09e42624;hpb=dfd1972f7bcb550a4fc3b05dbe7e71d12334b0a7;p=pspp

diff --git a/src/output/options.c b/src/output/options.c
index 918f718c0f..e0259f0936 100644
--- a/src/output/options.c
+++ b/src/output/options.c
@@ -110,7 +110,7 @@ do_parse_boolean (const char *driver_name, const char *key,
     return false;
   else
     {
-      error (0, 0, _("%s: \"%s\" is \"%s\" but a Boolean value is required"),
+      error (0, 0, _("%s: `%s' is `%s' but a Boolean value is required"),
              driver_name, value, key);
       return -1;
     }
@@ -145,7 +145,7 @@ parse_boolean (struct driver_option *o)
    O has no user-specified value, then O's default value is treated the same
    way.  If the default value still does not match, parse_enum() returns 0.
 
-   Example: parse_enum (o, "a", 1, "b", 2, (char *) NULL) returns 1 if O's
+   Example: parse_enum (o, "a", 1, "b", 2, NULL) returns 1 if O's
    value if "a", 2 if O's value is "b".
 
    Destroys O. */
@@ -185,7 +185,7 @@ parse_enum (struct driver_option *o, ...)
                   ds_put_format (&choices, "`%s'", s);
                 }
 
-              error (0, 0, _("%s: \"%s\" is \"%s\" but one of the following "
+              error (0, 0, _("%s: `%s' is `%s' but one of the following "
                              "is required: %s"),
                      o->driver_name, o->name, o->value, ds_cstr (&choices));
               ds_destroy (&choices);
@@ -229,22 +229,22 @@ parse_int (struct driver_option *o, int min_value, int max_value)
       else if (max_value == INT_MAX)
         {
           if (min_value == 0)
-            error (0, 0, _("%s: \"%s\" is \"%s\" but a nonnegative integer "
+            error (0, 0, _("%s: `%s' is `%s' but a nonnegative integer "
                            "is required"),
                    o->driver_name, o->name, o->value);
           else if (min_value == 1)
-            error (0, 0, _("%s: \"%s\" is \"%s\" but a positive integer is "
+            error (0, 0, _("%s: `%s' is `%s' but a positive integer is "
                            "required"), o->driver_name, o->name, o->value);
           else if (min_value == INT_MIN)
-            error (0, 0, _("%s: \"%s\" is \"%s\" but an integer is required"),
+            error (0, 0, _("%s: `%s' is `%s' but an integer is required"),
                    o->driver_name, o->name, o->value);
           else
-            error (0, 0, _("%s: \"%s\" is \"%s\" but an integer greater "
+            error (0, 0, _("%s: `%s' is `%s' but an integer greater "
                            "than %d is required"),
                    o->driver_name, o->name, o->value, min_value - 1);
         }
       else
-        error (0, 0, _("%s: \"%s\" is \"%s\"  but an integer between %d and "
+        error (0, 0, _("%s: `%s' is `%s'  but an integer between %d and "
                        "%d is required"),
                o->driver_name, o->name, o->value, min_value, max_value);
     }
@@ -282,30 +282,57 @@ parse_string (struct driver_option *o)
   return retval;
 }
 
-/* Parses O's value as a string and returns it as a malloc'd string that the
-   caller is responsible for freeing.
+static char *
+default_chart_file_name (const char *file_name)
+{
+  if (strcmp (file_name, "-"))
+    {
+      const char *extension = strrchr (file_name, '.');
+      int stem_length = extension ? extension - file_name : strlen (file_name);
+      return xasprintf ("%.*s-#.png", stem_length, file_name);
+    }
+  else
+    return NULL;
+}
+
+/* Parses and returns a chart file name, or NULL if no charts should be output.
+   If a nonnull string is returned, it will contain at least one '#' character,
+   which the client will presumably replace by a number as part of writing
+   charts to separate files.
+
+   If O->value is "none", then this function returns NULL.
 
-   The string must contain at least one '#' character, which the client will
-   presumably replace by a number as part of writing charts to separate files.
+   If O->value is non-NULL but not "none", returns a copy of that string (if it
+   contains '#').
+
+   If O->value is NULL, then O's default_value should be the name of the main
+   output file.  Returns NULL if default_value is "-", and otherwise returns a
+   copy of string string with its extension stripped off and "-#.png" appended.
 
    Destroys O. */
 char *
 parse_chart_file_name (struct driver_option *o)
 {
-  char *value;
+  char *chart_file_name;
 
-  if (o->value != NULL && strchr (o->value, '#') != NULL)
-    value = xstrdup (o->value);
-  else
+  if (o->value != NULL)
     {
-      value = xstrdup (o->default_value);
-      if (o->value != NULL)
-        error (0, 0, _("%s: \"%s\" is \"%s\" but a file name that contains "
-                       "\"#\" is required."),
-               o->name, o->value, o->driver_name);
+      if (!strcmp (o->value, "none"))
+        chart_file_name = NULL;
+      else if (strchr (o->value, '#') != NULL)
+        chart_file_name = xstrdup (o->value);
+      else
+        {
+          error (0, 0, _("%s: `%s' is `%s' but a file name that contains "
+                         "`#' is required."),
+                 o->name, o->value, o->driver_name);
+          chart_file_name = default_chart_file_name (o->default_value);
+        }
     }
+  else
+    chart_file_name = default_chart_file_name (o->default_value);
 
   driver_option_destroy (o);
 
-  return value;
+  return chart_file_name;
 }