--- /dev/null
+/* PSPP - a program for statistical analysis.
+ Copyright (C) 1997-9, 2000, 2006, 2009-2011, 2013 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 <stdint.h>
+#include <stdio.h>
+#include <stdlib.h>
+
+#include "data/casegrouper.h"
+#include "data/casereader.h"
+#include "data/dataset.h"
+#include "data/dictionary.h"
+#include "data/data-out.h"
+#include "data/format.h"
+#include "data/subcase.h"
+#include "data/variable.h"
+#include "language/command.h"
+#include "language/dictionary/split-file.h"
+#include "language/lexer/lexer.h"
+#include "language/lexer/variable-parser.h"
+#include "libpspp/compiler.h"
+#include "libpspp/ll.h"
+#include "libpspp/message.h"
+#include "libpspp/misc.h"
+#include "output/tab.h"
+#include "output/table-item.h"
+
+#include "gl/intprops.h"
+#include "gl/minmax.h"
+#include "gl/xalloc.h"
+#include "gl/xmalloca.h"
+
+#include "gettext.h"
+#define _(msgid) gettext (msgid)
+
+enum numbering
+ {
+ format_unnumbered,
+ format_numbered
+ };
+
+
+struct lst_cmd
+{
+ int first;
+ int last;
+ int step;
+ struct variable **v_variables;
+ size_t n_variables;
+ enum numbering numbering;
+};
+
+
+static int
+list_execute (const struct lst_cmd *lcmd, struct dataset *ds)
+{
+ const struct dictionary *dict = dataset_dict (ds);
+
+ bool ok;
+ int i;
+ struct casegrouper *grouper;
+ struct casereader *group;
+ struct subcase sc;
+
+ subcase_init_empty (&sc);
+ for (i = 0; i < lcmd->n_variables; i++)
+ subcase_add_var (&sc, lcmd->v_variables[i], SC_ASCEND);
+
+
+ grouper = casegrouper_create_splits (proc_open (ds), dict);
+ while (casegrouper_get_next_group (grouper, &group))
+ {
+ struct ccase *ccase;
+ struct table *t;
+
+ ccase = casereader_peek (group, 0);
+ if (ccase != NULL)
+ {
+ output_split_file_values (ds, ccase);
+ case_unref (ccase);
+ }
+
+ group = casereader_project (group, &sc);
+ if (lcmd->numbering == format_numbered)
+ group = casereader_create_arithmetic_sequence (group, 1, 1);
+ group = casereader_select (group, lcmd->first - 1,
+ (lcmd->last != LONG_MAX ? lcmd->last
+ : CASENUMBER_MAX), lcmd->step);
+
+ if (lcmd->numbering == format_numbered)
+ {
+ struct fmt_spec fmt;
+ size_t col;
+ int width;
+
+ width = lcmd->last == LONG_MAX ? 5 : intlog10 (lcmd->last);
+ fmt = fmt_for_output (FMT_F, width, 0);
+ col = caseproto_get_n_widths (casereader_get_proto (group)) - 1;
+
+ t = table_from_casereader (group, col, _("Case Number"), &fmt);
+ }
+ else
+ t = NULL;
+
+ for (i = 0; i < lcmd->n_variables; i++)
+ {
+ const struct variable *var = lcmd->v_variables[i];
+ struct table *c;
+
+ c = table_from_casereader (group, i, var_get_name (var),
+ var_get_print_format (var));
+ t = table_hpaste (t, c);
+ }
+
+ casereader_destroy (group);
+
+ table_item_submit (table_item_create (t, "Data List"));
+ }
+ ok = casegrouper_destroy (grouper);
+ ok = proc_commit (ds) && ok;
+
+ subcase_destroy (&sc);
+ free (lcmd->v_variables);
+
+ return ok ? CMD_SUCCESS : CMD_CASCADING_FAILURE;
+}
+
+
+/* Parses and executes the LIST procedure. */
+int
+cmd_list (struct lexer *lexer, struct dataset *ds)
+{
+ struct lst_cmd cmd;
+ const struct dictionary *dict = dataset_dict (ds);
+
+ /* Fill in defaults. */
+ cmd.step = 1;
+ cmd.first = 1;
+ cmd.last = LONG_MAX;
+ cmd.n_variables = 0;
+ cmd.v_variables = NULL;
+ cmd.numbering = format_unnumbered;
+
+
+ while (lex_token (lexer) != T_ENDCMD)
+ {
+ lex_match (lexer, T_SLASH);
+ if (lex_match_id (lexer, "VARIABLES") )
+ {
+ lex_match (lexer, T_EQUALS);
+ if (! parse_variables (lexer, dict, &cmd.v_variables, &cmd.n_variables, 0 ))
+ {
+ msg (SE, _("No variables specified."));
+ return CMD_FAILURE;
+ }
+ }
+ else if (lex_match_id (lexer, "FORMAT") )
+ {
+ lex_match (lexer, T_EQUALS);
+ if (lex_match_id (lexer, "NUMBERED") )
+ {
+ cmd.numbering = format_numbered;
+ }
+ else if (lex_match_id (lexer, "UNNUMBERED") )
+ {
+ cmd.numbering = format_unnumbered;
+ }
+ else
+ {
+ lex_error (lexer, NULL);
+ goto error;
+ }
+ }
+ /* example: LIST /CASES=FROM 1 TO 25 BY 5. */
+ else if (lex_match_id (lexer, "CASES"))
+ {
+ lex_match (lexer, T_EQUALS);
+ lex_force_match_id (lexer, "FROM");
+
+ if (lex_force_int (lexer))
+ {
+ lex_match_int (lexer, &cmd.first);
+ lex_get (lexer);
+ }
+
+ lex_force_match (lexer, T_TO);
+
+ if (lex_force_int (lexer))
+ {
+ cmd.last = lex_integer (lexer);
+ lex_get (lexer);
+ }
+
+ lex_force_match (lexer, T_BY);
+
+ if (lex_force_int (lexer))
+ {
+ cmd.step = lex_integer (lexer);
+ lex_get (lexer);
+ }
+ }
+ else if (! parse_variables (lexer, dict, &cmd.v_variables, &cmd.n_variables, 0 ))
+ {
+ return CMD_FAILURE;
+ }
+ }
+
+
+ /* Verify arguments. */
+ if (cmd.first > cmd.last)
+ {
+ int t;
+ msg (SW, _("The first case (%ld) specified precedes the last case (%ld) "
+ "specified. The values will be swapped."), cmd.first, cmd.last);
+ t = cmd.first;
+ cmd.first = cmd.last;
+ cmd.last = t;
+ }
+
+ if (cmd.first < 1)
+ {
+ msg (SW, _("The first case (%ld) to list is less than 1. The value is "
+ "being reset to 1."), cmd.first);
+ cmd.first = 1;
+ }
+
+ if (cmd.last < 1)
+ {
+ msg (SW, _("The last case (%ld) to list is less than 1. The value is "
+ "being reset to 1."), cmd.last);
+ cmd.last = 1;
+ }
+
+ if (cmd.step < 1)
+ {
+ msg (SW, _("The step value %ld is less than 1. The value is being "
+ "reset to 1."), cmd.step);
+ cmd.step = 1;
+ }
+
+ /* If no variables were explicitly provided, then default to ALL */
+ if (cmd.n_variables == 0)
+ dict_get_vars (dict, &cmd.v_variables, &cmd.n_variables,
+ DC_SYSTEM | DC_SCRATCH);
+
+ return list_execute (&cmd, ds);
+
+ error:
+ free (cmd.v_variables);
+ return CMD_FAILURE;
+}
+
projects / pspp / blobdiff