Add OUTPUT MODIFY command

[pspp] / src / language / utilities / output.c

diff --git a/src/language/utilities/output.c b/src/language/utilities/output.c
new file mode 100644 (file)
index 0000000..ac60663
--- /dev/null
+++ b/src/language/utilities/output.c
@@ -0,0 +1,192 @@
+/* PSPP - a program for statistical analysis.
+   Copyright (C) 2014 Free Software Foundation, Inc.
+
+   This program is free software: you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation, either version 3 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>. */
+
+#include <config.h>
+
+#include <ctype.h>
+#include <stdlib.h>
+
+#include "data/dataset.h"
+#include "data/settings.h"
+#include "data/format.h"
+#include "language/command.h"
+#include "language/lexer/lexer.h"
+#include "language/lexer/format-parser.h"
+#include "libpspp/message.h"
+#include "libpspp/version.h"
+#include "output/tab.h"
+
+#include "gl/xalloc.h"
+
+#include "gettext.h"
+#define _(msgid) gettext (msgid)
+
+struct thing
+{
+  const char *identifier;
+  enum result_class rc;
+};
+
+extern struct fmt_spec ugly [n_RC];
+
+static const struct thing things[] = 
+  {
+    {"SIGNIFICANCE", RC_PVALUE},
+    {"COUNT" ,RC_WEIGHT}
+  };
+
+#define N_THINGS (sizeof (things) / sizeof (struct thing))
+
+struct output_spec
+{
+  /* An array of classes */
+  enum result_class *rc;
+
+  int n_rc;
+
+  /* The format to be applied to these classes */
+  struct fmt_spec fmt;
+};
+
+int
+cmd_output (struct lexer *lexer, struct dataset *ds UNUSED)
+{
+  int j, i;
+  struct output_spec *output_specs = NULL;
+  int n_os = 0;
+  
+  if (!lex_force_match_id (lexer, "MODIFY"))
+    {
+      lex_error (lexer, NULL);
+      goto error;
+    }
+
+  while (lex_token (lexer) != T_ENDCMD)
+    {
+      lex_match (lexer, T_SLASH);
+
+      if (lex_match_id (lexer, "SELECT"))
+       {
+         if (!lex_match_id (lexer, "TABLES"))
+           {
+             lex_error (lexer, NULL);
+             goto error;
+           }
+       }
+      else if (lex_match_id (lexer, "TABLECELLS"))
+       {
+         struct output_spec *os;
+         output_specs = xrealloc (output_specs, sizeof (*output_specs) * ++n_os);
+         os = &output_specs[n_os - 1];
+         os->n_rc = 0;
+         os->rc = NULL;
+         
+         while (lex_token (lexer) != T_SLASH && 
+                lex_token (lexer) != T_ENDCMD)
+           {
+             if (lex_match_id (lexer, "SELECT"))
+               {
+                 lex_force_match (lexer, T_EQUALS);
+                 lex_force_match (lexer, T_LBRACK);
+                 
+                 while (lex_token (lexer) != T_RBRACK &&
+                        lex_token (lexer) != T_ENDCMD)
+                   {
+                     int i;
+                     for (i = 0 ; i < N_THINGS; ++i)
+                       {
+                         if (lex_match_id (lexer, things[i].identifier))
+                           {
+                             os->rc = xrealloc (os->rc, sizeof (*os->rc) * ++os->n_rc);
+                             os->rc[os->n_rc - 1] = things[i].rc;
+                             break;
+                           }
+                       }
+                     if (i >= N_THINGS)
+                       {
+                         lex_error (lexer, _("Unknown TABLECELLS class"));
+                         goto error;
+                       }
+                   }
+                 lex_force_match (lexer, T_RBRACK);
+               }
+             else if (lex_match_id (lexer, "FORMAT"))
+               {
+                 struct fmt_spec fmt;    
+                 char type[FMT_TYPE_LEN_MAX + 1];
+                 int width = -1;
+                 int decimals = -1;
+
+                 lex_force_match (lexer, T_EQUALS);
+                 if (! parse_abstract_format_specifier (lexer, type, &width, &decimals))
+                   {
+                     lex_error (lexer, NULL);
+                     goto error;
+                   }
+
+                 if (width <= 0)
+                   {
+                     const struct fmt_spec *dflt = settings_get_format ();
+                     width = dflt->w;
+                   }
+
+                  if (!fmt_from_name (type, &fmt.type))
+                    {
+                      lex_error (lexer, _("Unknown format type `%s'."), type);
+                     goto error;
+                    }
+
+                 fmt.w = width;
+                 fmt.d = decimals;
+
+                 os->fmt = fmt;
+               }
+             else 
+               {
+                 lex_error (lexer, NULL);
+                 goto error;
+           
+               }
+           }
+       }
+      else 
+       {
+         lex_error (lexer, NULL);
+         goto error;   
+
+       }
+    }
+
+  /* Populate the global table, with the values we parsed */
+  for (i = 0; i < n_os; ++i)
+    {
+      for (j = 0; j < output_specs[i].n_rc;  ++j)
+       {
+         ugly [output_specs[i].rc[j]] = output_specs[i].fmt;
+       }
+    }
+  
+  for (j = 0; j < n_os;  ++j)
+    free (output_specs[j].rc);
+  free (output_specs);
+  return CMD_SUCCESS;
+ error:
+
+  for (j = 0; j < n_os;  ++j)
+    free (output_specs[j].rc);
+  free (output_specs);
+  return CMD_SUCCESS;
+}