/* PSPP - a program for statistical analysis.
- Copyright (C) 1997-9, 2000, 2009, 2010 Free Software Foundation, Inc.
+ Copyright (C) 1997-9, 2000, 2009, 2010, 2012, 2013, 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
#include <config.h>
+#include <float.h>
#include <stdlib.h>
#include "data/case.h"
#include "data/casereader.h"
+#include "data/dataset.h"
#include "data/dictionary.h"
-#include "data/procedure.h"
#include "data/transformations.h"
#include "data/variable.h"
#include "language/command.h"
#include "language/lexer/lexer.h"
#include "language/lexer/variable-parser.h"
#include "libpspp/array.h"
-#include "libpspp/i18n.h"
#include "libpspp/compiler.h"
#include "libpspp/hash-functions.h"
#include "libpspp/hmap.h"
+#include "libpspp/i18n.h"
#include "libpspp/message.h"
#include "libpspp/pool.h"
#include "libpspp/str.h"
#include "gl/xalloc.h"
-#include "gl/vasnprintf.h"
+#include "gl/c-xvasprintf.h"
+#include "gl/mbiter.h"
+
#include "gettext.h"
#define _(msgid) gettext (msgid)
{
struct hmap_node hmap_node; /* Element in "struct arc_spec" hash table. */
union value from; /* Original value. */
+ int width; /* Width of the original value */
+
double to; /* Recoded value. */
};
/* Explains how to recode an AUTORECODE variable. */
struct arc_spec
{
- const struct variable *src; /* Source variable. */
+ int width; /* Variable width. */
+ int src_idx; /* Case index of source variable. */
struct variable *dst; /* Target variable. */
- struct hmap items; /* Hash table of "struct arc_item"s. */
+ struct rec_items *items;
};
/* Descending or ascending sort order. */
DESCENDING
};
+struct rec_items
+{
+ struct hmap ht; /* Hash table of "struct arc_item"s. */
+ int refcnt;
+};
+
+
+
/* AUTORECODE data. */
struct autorecode_pgm
- {
- struct arc_spec *specs;
- size_t n_specs;
- };
+{
+ struct arc_spec *specs;
+ size_t n_specs;
+
+ /* Hash table of "struct arc_item"s. */
+ struct rec_items *global_items;
+
+ bool blank_valid;
+};
static trns_proc_func autorecode_trns_proc;
static trns_free_func autorecode_trns_free;
-static int compare_arc_items (const void *, const void *, const void *width);
+static int compare_arc_items (const void *, const void *, const void *aux);
static void arc_free (struct autorecode_pgm *);
-static struct arc_item *find_arc_item (struct arc_spec *, const union value *,
+static struct arc_item *find_arc_item (const struct arc_spec *, const union value *,
size_t hash);
+static bool
+value_is_blank (const union value *val, int width, const struct dictionary *dict)
+{
+ mbi_iterator_t iter;
+ const char *str = CHAR_CAST_BUG (const char*, value_str (val, width));
+ char *text = recode_string (UTF8, dict_get_encoding (dict), str, width);
+
+ for (mbi_init (iter, text, width); mbi_avail (iter); mbi_advance (iter))
+ {
+ mbchar_t c = mbi_cur (iter);
+
+ if ( ! mb_isblank (c))
+ {
+ free (text);
+ return false;
+ }
+ }
+
+ free (text);
+ return true;
+}
+
/* Performs the AUTORECODE procedure. */
int
cmd_autorecode (struct lexer *lexer, struct dataset *ds)
{
struct autorecode_pgm *arc = NULL;
- struct dictionary *dict = dataset_dict (ds);
+ struct dictionary *dict = dataset_dict (ds);
const struct variable **src_vars = NULL;
char **dst_names = NULL;
size_t n_srcs = 0;
size_t n_dsts = 0;
- enum arc_direction direction;
- bool print;
+ enum arc_direction direction = ASCENDING;
struct casereader *input;
struct ccase *c;
size_t i;
bool ok;
+ /* Create procedure. */
+ arc = xzalloc (sizeof *arc);
+ arc->blank_valid = true;
+
/* Parse variable lists. */
lex_match_id (lexer, "VARIABLES");
- lex_match (lexer, '=');
+ lex_match (lexer, T_EQUALS);
if (!parse_variables_const (lexer, dict, &src_vars, &n_srcs,
- PV_NO_DUPLICATE))
+ PV_NO_DUPLICATE | PV_NO_SCRATCH))
goto error;
if (!lex_force_match_id (lexer, "INTO"))
goto error;
- lex_match (lexer, '=');
- if (!parse_DATA_LIST_vars (lexer, &dst_names, &n_dsts, PV_NO_DUPLICATE))
+ lex_match (lexer, T_EQUALS);
+ if (!parse_DATA_LIST_vars (lexer, dict, &dst_names, &n_dsts,
+ PV_NO_DUPLICATE))
goto error;
if (n_dsts != n_srcs)
{
}
/* Parse options. */
- direction = ASCENDING;
- print = false;
- while (lex_match (lexer, '/'))
- if (lex_match_id (lexer, "DESCENDING"))
- direction = DESCENDING;
- else if (lex_match_id (lexer, "PRINT"))
- print = true;
- if (lex_token (lexer) != '.')
+ while (lex_match (lexer, T_SLASH))
+ {
+ if (lex_match_id (lexer, "DESCENDING"))
+ direction = DESCENDING;
+ else if (lex_match_id (lexer, "PRINT"))
+ {
+ /* Not yet implemented. */
+ }
+ else if (lex_match_id (lexer, "GROUP"))
+ {
+ arc->global_items = xmalloc (sizeof (*arc->global_items));
+ arc->global_items->refcnt = 1;
+ hmap_init (&arc->global_items->ht);
+ }
+ else if (lex_match_id (lexer, "BLANK"))
+ {
+ lex_match (lexer, T_EQUALS);
+ if (lex_match_id (lexer, "VALID"))
+ {
+ arc->blank_valid = true;
+ }
+ else if (lex_match_id (lexer, "MISSING"))
+ {
+ arc->blank_valid = false;
+ }
+ else
+ goto error;
+ }
+ else
+ goto error;
+ }
+
+ if (lex_token (lexer) != T_ENDCMD)
{
lex_error (lexer, _("expecting end of command"));
goto error;
}
- /* Create procedure. */
- arc = xmalloc (sizeof *arc);
arc->specs = xmalloc (n_dsts * sizeof *arc->specs);
arc->n_specs = n_dsts;
+
+
for (i = 0; i < n_dsts; i++)
{
struct arc_spec *spec = &arc->specs[i];
- spec->src = src_vars[i];
- hmap_init (&spec->items);
+ spec->width = var_get_width (src_vars[i]);
+ spec->src_idx = var_get_case_index (src_vars[i]);
+
+ if (arc->global_items)
+ {
+ arc->global_items->refcnt++;
+ spec->items = arc->global_items;
+ }
+ else
+ {
+ spec->items = xzalloc (sizeof (*spec->items));
+ spec->items->refcnt = 1;
+ hmap_init (&spec->items->ht);
+ }
}
+
/* Execute procedure. */
input = proc_open (ds);
for (; (c = casereader_read (input)) != NULL; case_unref (c))
for (i = 0; i < arc->n_specs; i++)
{
struct arc_spec *spec = &arc->specs[i];
- int width = var_get_width (spec->src);
- const union value *value = case_data (c, spec->src);
+ int width = spec->width;
+ const union value *value = case_data_idx (c, spec->src_idx);
size_t hash = value_hash (value, width, 0);
struct arc_item *item;
item = find_arc_item (spec, value, hash);
- if (item == NULL)
+ if ( (item == NULL)
+ &&
+ ( arc->blank_valid
+ || val_type_from_width (spec->width) == VAL_NUMERIC
+ || ! value_is_blank (value, width, dict))
+ )
{
item = xmalloc (sizeof *item);
+ item->width = width;
value_clone (&item->from, value, width);
- hmap_insert (&spec->items, &item->hmap_node, hash);
+ hmap_insert (&spec->items->ht, &item->hmap_node, hash);
}
}
ok = casereader_destroy (input);
ok = proc_commit (ds) && ok;
+ /* Re-fetch dictionary because it might have changed (if TEMPORARY was in
+ use). */
+ dict = dataset_dict (ds);
+
/* Create transformation. */
for (i = 0; i < arc->n_specs; i++)
{
struct arc_item **items;
struct arc_item *item;
size_t n_items;
- int src_width;
size_t j;
/* Create destination variable. */
spec->dst = dict_create_var_assert (dict, dst_names[i], 0);
/* Create array of pointers to items. */
- n_items = hmap_count (&spec->items);
+ n_items = hmap_count (&spec->items->ht);
items = xmalloc (n_items * sizeof *items);
j = 0;
- HMAP_FOR_EACH (item, struct arc_item, hmap_node, &spec->items)
+ HMAP_FOR_EACH (item, struct arc_item, hmap_node, &spec->items->ht)
items[j++] = item;
+
assert (j == n_items);
/* Sort array by value. */
- src_width = var_get_width (spec->src);
- sort (items, n_items, sizeof *items, compare_arc_items, &src_width);
+ sort (items, n_items, sizeof *items, compare_arc_items, NULL);
/* Assign recoded values in sorted order. */
for (j = 0; j < n_items; j++)
{
const union value *from = &items[j]->from;
- size_t len;
char *recoded_value = NULL;
- char *c;
-
+ const int src_width = items[j]->width;
union value to_val;
+ size_t len;
+
value_init (&to_val, 0);
items[j]->to = direction == ASCENDING ? j + 1 : n_items - j;
/* Add value labels to the destination variable which indicate
the source value from whence the new value comes. */
-
if (src_width > 0)
- recoded_value =
- recode_string (UTF8, dict_get_encoding (dict), (char *) value_str (from, src_width), src_width);
+ {
+ const char *str = CHAR_CAST_BUG (const char*, value_str (from, src_width));
+
+ recoded_value = recode_string (UTF8, dict_get_encoding (dict),
+ str, src_width);
+ }
else
- recoded_value = asnprintf (NULL, &len, "%g", from->f);
+ recoded_value = c_xasprintf ("%.*g", DBL_DIG + 1, from->f);
/* Remove trailing whitespace */
- for (c = recoded_value; *c != '\0'; c++)
- if ( *c == ' ')
- {
- *c = '\0';
- break;
- }
+ len = strlen (recoded_value);
+ while (len > 0 && recoded_value[len - 1] == ' ')
+ recoded_value[--len] = '\0';
var_add_value_label (spec->dst, &to_val, recoded_value);
value_destroy (&to_val, 0);
}
add_transformation (ds, autorecode_trns_proc, autorecode_trns_free, arc);
+ for (i = 0; i < n_dsts; i++)
+ free (dst_names[i]);
+ free (dst_names);
+ free (src_vars);
+
return ok ? CMD_SUCCESS : CMD_CASCADING_FAILURE;
error:
for (i = 0; i < arc->n_specs; i++)
{
struct arc_spec *spec = &arc->specs[i];
- int width = var_get_width (spec->src);
struct arc_item *item, *next;
- HMAP_FOR_EACH_SAFE (item, next, struct arc_item, hmap_node,
- &spec->items)
- {
- value_destroy (&item->from, width);
- hmap_delete (&spec->items, &item->hmap_node);
- free (item);
- }
- hmap_destroy (&spec->items);
+ HMAP_FOR_EACH_SAFE (item, next, struct arc_item, hmap_node,
+ &spec->items->ht)
+ {
+ value_destroy (&item->from, item->width);
+ hmap_delete (&spec->items->ht, &item->hmap_node);
+ free (item);
+ }
}
+
+ for (i = 0; i < arc->n_specs; i++)
+ {
+ struct arc_spec *spec = &arc->specs[i];
+
+ if (--spec->items->refcnt == 0)
+ {
+ hmap_destroy (&spec->items->ht);
+ free (spec->items);
+ }
+ }
+
+ if (arc->global_items && --arc->global_items->refcnt == 0)
+ {
+ hmap_destroy (&arc->global_items->ht);
+ free (arc->global_items);
+ }
+
free (arc->specs);
free (arc);
}
}
static struct arc_item *
-find_arc_item (struct arc_spec *spec, const union value *value,
+find_arc_item (const struct arc_spec *spec, const union value *value,
size_t hash)
{
struct arc_item *item;
- HMAP_FOR_EACH_WITH_HASH (item, struct arc_item, hmap_node, hash,
- &spec->items)
- if (value_equal (value, &item->from, var_get_width (spec->src)))
+ HMAP_FOR_EACH_WITH_HASH (item, struct arc_item, hmap_node, hash, &spec->items->ht)
+ if (value_equal (value, &item->from, spec->width))
return item;
return NULL;
}
static int
-compare_arc_items (const void *a_, const void *b_, const void *width_)
+compare_arc_items (const void *a_, const void *b_, const void *aux UNUSED)
{
const struct arc_item *const *a = a_;
const struct arc_item *const *b = b_;
- const int *width = width_;
+ int width_a = (*a)->width;
+ int width_b = (*b)->width;
+
+ if ( width_a == width_b)
+ return value_compare_3way (&(*a)->from, &(*b)->from, width_a);
- return value_compare_3way (&(*a)->from, &(*b)->from, *width);
+ if ( width_a == 0 && width_b != 0)
+ return -1;
+
+ if ( width_b == 0 && width_a != 0)
+ return +1;
+
+ return buf_compare_rpad (CHAR_CAST_BUG (const char *, value_str (&(*a)->from, width_a)), width_a,
+ CHAR_CAST_BUG (const char *, value_str (&(*b)->from, width_b)), width_b);
}
static int
*c = case_unshare (*c);
for (i = 0; i < arc->n_specs; i++)
{
- struct arc_spec *spec = &arc->specs[i];
- int width = var_get_width (spec->src);
- const union value *value = case_data (*c, spec->src);
- struct arc_item *item;
+ const struct arc_spec *spec = &arc->specs[i];
+ const union value *value = case_data_idx (*c, spec->src_idx);
+ unsigned int hash = value_hash (value, spec->width, 0);
+ const struct arc_item *item = find_arc_item (spec, value, hash);
- item = find_arc_item (spec, value, value_hash (value, width, 0));
case_data_rw (*c, spec->dst)->f = item ? item->to : SYSMIS;
}
projects / pspp / blobdiff