Patch #5244.

[pspp-builds.git] / src / data / format.c

diff --git a/src/data/format.c b/src/data/format.c
index 5b9b76569d2ad2611526302391ef60764cc76141..01a8d31742be9332a4d653ab786815da6daac82f 100644 (file)
--- a/src/data/format.c
+++ b/src/data/format.c
@@ -20,6 +20,7 @@
 #include <config.h>
 #include "format.h"
 #include <ctype.h>
+#include <libpspp/assertion.h>
 #include <libpspp/message.h>
 #include <stdlib.h>
 #include <libpspp/compiler.h>
@@ -43,14 +44,34 @@ struct fmt_desc formats[FMT_NUMBER_OF_FORMATS + 1] =
 /* Common formats. */
 const struct fmt_spec f8_2 = {FMT_F, 8, 2};
 
+/* Tries to parse NAME as a format type.
+   If successful, stores the type in *TYPE and returns true.
+   On failure, returns false. */
+bool
+fmt_type_from_string (const char *name, int *type) 
+{
+  int i;
+
+  for (i = 0; i < FMT_NUMBER_OF_FORMATS; i++)
+    if (!strcasecmp (name, formats[i].name))
+      {
+        *type = i;
+        return true;
+      }
+  return false;
+}
+
 /* Converts F to its string representation (for instance, "F8.2") and
-   returns a pointer to a static buffer containing that string. */
+   returns a pointer to a static buffer containing that string.
+   If F has decimals, then they are included in the output
+   string, even if F's format type does not, so that we can
+   accurately present incorrect formats to the user. */
 char *
 fmt_to_string (const struct fmt_spec *f)
 {
   static char buf[32];
 
-  if (formats[f->type].n_args >= 2)
+  if (formats[f->type].n_args >= 2 || f->d > 0)
     sprintf (buf, "%s%d.%d", formats[f->type].name, f->w, f->d);
   else
     sprintf (buf, "%s%d", formats[f->type].name, f->w);
@@ -67,14 +88,7 @@ check_common_specifier (const struct fmt_spec *spec, bool emit_error)
   struct fmt_desc *f ; 
   char *str;
 
-  if ( spec->type > FMT_NUMBER_OF_FORMATS ) 
-    {
-      if (emit_error)
-        msg (SE, _("Format specifies a bad type (%d)"), spec->type);
-      
-      return false;
-    }
-
+  assert (spec->type < FMT_NUMBER_OF_FORMATS);
   f = &formats[spec->type];
   str = fmt_to_string (spec);
 
@@ -90,10 +104,18 @@ check_common_specifier (const struct fmt_spec *spec, bool emit_error)
     {
       if (emit_error)
         msg (SE, _("Format %s specifies a bad number of "
-                   "implied decimal places %d.  Input format %s allows "
+                   "implied decimal places %d.  Format type %s allows "
                    "up to 16 implied decimal places."), str, spec->d, f->name);
       return false;
     }
+  if (f->n_args <= 1 && spec->d) 
+    {
+      if (emit_error)
+        msg (SE, _("Format %s specifies %d decimal places, but "
+                   "format type %s does not allow for decimal places."),
+             str, spec->d, f->name);
+      return false;
+    }
   return true;
 }
 
@@ -103,7 +125,7 @@ check_common_specifier (const struct fmt_spec *spec, bool emit_error)
 int
 check_input_specifier (const struct fmt_spec *spec, int emit_error)
 {
-  struct fmt_desc *f ;
+  struct fmt_desc *f;
   char *str ;
 
   if (!check_common_specifier (spec, emit_error))
@@ -111,10 +133,6 @@ check_input_specifier (const struct fmt_spec *spec, int emit_error)
 
   f = &formats[spec->type];
   str = fmt_to_string (spec);
-
-
-  if (spec->type == FMT_X)
-    return 1;
   if (f->cat & FCAT_OUTPUT_ONLY)
     {
       if (emit_error)
@@ -155,9 +173,6 @@ check_output_specifier (const struct fmt_spec *spec, int emit_error)
 
   f = &formats[spec->type];
   str = fmt_to_string (spec);
-
-  if (spec->type == FMT_X)
-    return 1;
   if (spec->w < f->Omin_w || spec->w > f->Omax_w)
     {
       if (emit_error)
@@ -280,7 +295,7 @@ convert_fmt_ItoO (const struct fmt_spec *input, struct fmt_spec *output)
     case FMT_CCC:
     case FMT_CCD:
     case FMT_CCE:
-      assert (0);
+      NOT_REACHED ();
     case FMT_Z:
     case FMT_A:
       /* nothing is necessary */
@@ -314,7 +329,7 @@ convert_fmt_ItoO (const struct fmt_spec *input, struct fmt_spec *output)
       /* nothing is necessary */
       break;
     default:
-      assert (0);
+      NOT_REACHED ();
     }
 
   assert (check_output_specifier (output, 0));
@@ -372,3 +387,19 @@ make_output_format (int type, int w, int d)
   assert (check_output_specifier (&f, 0));
   return f;
 }
+
+
+bool 
+measure_is_valid(enum measure m)
+{
+  if ( m <= 0 ) return false;
+  if ( m >= n_MEASURES) return false;
+  return true;
+}
+
+bool 
+alignment_is_valid(enum alignment a)
+{
+  if ( a >= n_ALIGN) return false;
+  return true;
+}