/* PSPP - a program for statistical analysis.
Copyright (C) 1997-9, 2000, 2006, 2009-2011 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 . */
#include
#include
#include
#include
#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 "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)
/* (headers) */
/* (specification)
list (lst_):
*variables=varlist("PV_NO_SCRATCH");
cases=:from n:first,"%s>0"/by n:step,"%s>0"/ *to n:last,"%s>0";
+format=numbering:numbered/!unnumbered,
wrap:!wrap/single.
*/
/* (declarations) */
/* (functions) */
/* Parsed command. */
static struct cmd_list cmd;
/* Parses and executes the LIST procedure. */
int
cmd_list (struct lexer *lexer, struct dataset *ds)
{
struct dictionary *dict = dataset_dict (ds);
struct casegrouper *grouper;
struct casereader *group;
struct subcase sc;
size_t i;
bool ok;
if (!parse_list (lexer, ds, &cmd, NULL))
return CMD_FAILURE;
/* Fill in defaults. */
if (cmd.step == LONG_MIN)
cmd.step = 1;
if (cmd.first == LONG_MIN)
cmd.first = 1;
if (cmd.last == LONG_MIN)
cmd.last = LONG_MAX;
if (!cmd.sbc_variables)
dict_get_vars (dict, &cmd.v_variables, &cmd.n_variables,
DC_SYSTEM | DC_SCRATCH);
if (cmd.n_variables == 0)
{
msg (SE, _("No variables specified."));
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;
}
subcase_init_empty (&sc);
for (i = 0; i < cmd.n_variables; i++)
subcase_add_var (&sc, cmd.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 (cmd.numbering == LST_NUMBERED)
group = casereader_create_arithmetic_sequence (group, 1, 1);
group = casereader_select (group, cmd.first - 1,
(cmd.last != LONG_MAX ? cmd.last
: CASENUMBER_MAX), cmd.step);
if (cmd.numbering == LST_NUMBERED)
{
struct fmt_spec fmt;
size_t col;
int width;
width = cmd.last == LONG_MAX ? 5 : intlog10 (cmd.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 < cmd.n_variables; i++)
{
const struct variable *var = cmd.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 (cmd.v_variables);
return ok ? CMD_SUCCESS : CMD_CASCADING_FAILURE;
}
/*
Local Variables:
mode: c
End:
*/