/* PSPP - a program for statistical analysis.
- Copyright (C) 1997-9, 2000, 2006, 2009, 2010, 2011, 2012, 2013 Free Software Foundation, Inc.
+ Copyright (C) 1997-9, 2000, 2006, 2009, 2010, 2011, 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 <ctype.h>
+#include <errno.h>
+#include <float.h>
#include <stdlib.h>
#include "data/attributes.h"
#include "language/lexer/lexer.h"
#include "language/lexer/variable-parser.h"
#include "libpspp/array.h"
+#include "libpspp/hash-functions.h"
+#include "libpspp/i18n.h"
#include "libpspp/message.h"
#include "libpspp/misc.h"
+#include "libpspp/pool.h"
#include "libpspp/string-array.h"
#include "output/tab.h"
+#include "output/text-item.h"
+#include "gl/localcharset.h"
#include "gl/minmax.h"
#include "gl/xalloc.h"
static int describe_variable (const struct variable *v, struct tab_table *t,
int r, int pc, int flags);
+static void report_encodings (const struct file_handle *,
+ const struct sfm_reader *);
+
/* SYSFILE INFO utility. */
int
cmd_sysfile_info (struct lexer *lexer, struct dataset *ds UNUSED)
{
+ struct sfm_reader *sfm_reader;
struct file_handle *h;
struct dictionary *d;
struct tab_table *t;
struct casereader *reader;
struct sfm_read_info info;
+ char *encoding;
int r, i;
- lex_match_id (lexer, "FILE");
- lex_match (lexer, T_EQUALS);
+ h = NULL;
+ encoding = NULL;
+ for (;;)
+ {
+ lex_match (lexer, T_SLASH);
- h = fh_parse (lexer, FH_REF_FILE, NULL);
- if (!h)
- return CMD_FAILURE;
+ if (lex_match_id (lexer, "FILE") || lex_is_string (lexer))
+ {
+ lex_match (lexer, T_EQUALS);
- reader = sfm_open_reader (h, NULL, &d, &info);
- if (!reader)
+ fh_unref (h);
+ h = fh_parse (lexer, FH_REF_FILE, NULL);
+ if (h == NULL)
+ goto error;
+ }
+ else if (lex_match_id (lexer, "ENCODING"))
+ {
+ lex_match (lexer, T_EQUALS);
+
+ if (!lex_force_string (lexer))
+ goto error;
+
+ free (encoding);
+ encoding = ss_xstrdup (lex_tokss (lexer));
+
+ lex_get (lexer);
+ }
+ else
+ break;
+ }
+
+ if (h == NULL)
+ {
+ lex_sbc_missing ("FILE");
+ goto error;
+ }
+
+ sfm_reader = sfm_open (h);
+ if (sfm_reader == NULL)
+ goto error;
+
+ if (encoding && !strcasecmp (encoding, "detect"))
{
+ report_encodings (h, sfm_reader);
fh_unref (h);
- return CMD_FAILURE;
+ return CMD_SUCCESS;
}
+
+ reader = sfm_decode (sfm_reader, encoding, &d, &info);
+ if (!reader)
+ goto error;
+
casereader_destroy (reader);
- t = tab_create (2, 11);
+ t = tab_create (2, 11 + (info.product_ext != NULL));
+ r = 0;
tab_vline (t, TAL_GAP, 1, 0, 8);
- tab_text (t, 0, 0, TAB_LEFT, _("File:"));
- tab_text (t, 1, 0, TAB_LEFT, fh_get_file_name (h));
- tab_text (t, 0, 1, TAB_LEFT, _("Label:"));
+
+ tab_text (t, 0, r, TAB_LEFT, _("File:"));
+ tab_text (t, 1, r++, TAB_LEFT, fh_get_file_name (h));
+
+ tab_text (t, 0, r, TAB_LEFT, _("Label:"));
{
const char *label = dict_get_label (d);
if (label == NULL)
label = _("No label.");
- tab_text (t, 1, 1, TAB_LEFT, label);
+ tab_text (t, 1, r++, TAB_LEFT, label);
}
- tab_text (t, 0, 2, TAB_LEFT, _("Created:"));
- tab_text_format (t, 1, 2, TAB_LEFT, "%s %s by %s",
+
+ tab_text (t, 0, r, TAB_LEFT, _("Created:"));
+ tab_text_format (t, 1, r++, TAB_LEFT, "%s %s by %s",
info.creation_date, info.creation_time, info.product);
- tab_text (t, 0, 3, TAB_LEFT, _("Integer Format:"));
- tab_text (t, 1, 3, TAB_LEFT,
+
+ if (info.product_ext)
+ {
+ tab_text (t, 0, r, TAB_LEFT, _("Product:"));
+ tab_text (t, 1, r++, TAB_LEFT, info.product_ext);
+ }
+
+ tab_text (t, 0, r, TAB_LEFT, _("Integer Format:"));
+ tab_text (t, 1, r++, TAB_LEFT,
info.integer_format == INTEGER_MSB_FIRST ? _("Big Endian")
: info.integer_format == INTEGER_LSB_FIRST ? _("Little Endian")
: _("Unknown"));
- tab_text (t, 0, 4, TAB_LEFT, _("Real Format:"));
- tab_text (t, 1, 4, TAB_LEFT,
+
+ tab_text (t, 0, r, TAB_LEFT, _("Real Format:"));
+ tab_text (t, 1, r++, TAB_LEFT,
info.float_format == FLOAT_IEEE_DOUBLE_LE ? _("IEEE 754 LE.")
: info.float_format == FLOAT_IEEE_DOUBLE_BE ? _("IEEE 754 BE.")
: info.float_format == FLOAT_VAX_D ? _("VAX D.")
: info.float_format == FLOAT_VAX_G ? _("VAX G.")
: info.float_format == FLOAT_Z_LONG ? _("IBM 390 Hex Long.")
: _("Unknown"));
- tab_text (t, 0, 5, TAB_LEFT, _("Variables:"));
- tab_text_format (t, 1, 5, TAB_LEFT, "%zu", dict_get_var_cnt (d));
- tab_text (t, 0, 6, TAB_LEFT, _("Cases:"));
+
+ tab_text (t, 0, r, TAB_LEFT, _("Variables:"));
+ tab_text_format (t, 1, r++, TAB_LEFT, "%zu", dict_get_var_cnt (d));
+
+ tab_text (t, 0, r, TAB_LEFT, _("Cases:"));
if (info.case_cnt == -1)
- tab_text (t, 1, 6, TAB_LEFT, _("Unknown"));
+ tab_text (t, 1, r, TAB_LEFT, _("Unknown"));
else
- tab_text_format (t, 1, 6, TAB_LEFT, "%ld", (long int) info.case_cnt);
- tab_text (t, 0, 7, TAB_LEFT, _("Type:"));
- tab_text (t, 1, 7, TAB_LEFT, _("System File"));
- tab_text (t, 0, 8, TAB_LEFT, _("Weight:"));
+ tab_text_format (t, 1, r, TAB_LEFT, "%ld", (long int) info.case_cnt);
+ r++;
+
+ tab_text (t, 0, r, TAB_LEFT, _("Type:"));
+ tab_text (t, 1, r++, TAB_LEFT, _("System File"));
+
+ tab_text (t, 0, r, TAB_LEFT, _("Weight:"));
{
struct variable *weight_var = dict_get_weight (d);
- tab_text (t, 1, 8, TAB_LEFT,
+ tab_text (t, 1, r++, TAB_LEFT,
(weight_var != NULL
? var_get_name (weight_var) : _("Not weighted.")));
}
- tab_text (t, 0, 9, TAB_LEFT, _("Mode:"));
- tab_text_format (t, 1, 9, TAB_LEFT,
- _("Compression %s."), info.compressed ? _("on") : _("off"));
+ tab_text (t, 0, r, TAB_LEFT, _("Compression:"));
+ tab_text_format (t, 1, r++, TAB_LEFT,
+ info.compression == SFM_COMP_NONE ? _("None")
+ : info.compression == SFM_COMP_SIMPLE ? "SAV"
+ : "ZSAV");
- tab_text (t, 0, 10, TAB_LEFT, _("Charset:"));
- tab_text (t, 1, 10, TAB_LEFT, dict_get_encoding (d));
-
+ tab_text (t, 0, r, TAB_LEFT, _("Encoding:"));
+ tab_text (t, 1, r++, TAB_LEFT, dict_get_encoding (d));
tab_submit (t);
fh_unref (h);
sfm_read_info_destroy (&info);
return CMD_SUCCESS;
+
+error:
+ fh_unref (h);
+ free (encoding);
+ return CMD_FAILURE;
}
\f
/* DISPLAY utility. */
const struct attribute *attr = attrs[i];
const char *name = attribute_get_name (attr);
size_t n_values;
- size_t i;
+ size_t j;
if (!(flags & DF_AT_ATTRIBUTES) && is_at_name (name))
continue;
n_values = attribute_get_n_values (attr);
- for (i = 0; i < n_values; i++)
+ for (j = 0; j < n_values; j++)
{
if (n_values > 1)
- tab_text_format (t, c, r, TAB_LEFT, "%s[%zu]", name, i + 1);
+ tab_text_format (t, c, r, TAB_LEFT, "%s[%zu]", name, j + 1);
else
tab_text (t, c, r, TAB_LEFT, name);
- tab_text (t, c + 1, r, TAB_LEFT, attribute_get_value (attr, i));
+ tab_text (t, c + 1, r, TAB_LEFT, attribute_get_value (attr, j));
r++;
}
}
if (flags & DF_VARIABLE_LABELS && var_has_label (v))
{
- tab_joint_text (t, 1, r, 2, r, TAB_LEFT, var_get_label (v));
+ if (flags & ~(DF_DICT_INDEX | DF_VARIABLE_LABELS))
+ tab_joint_text_format (t, 1, r, 2, r, TAB_LEFT,
+ _("Label: %s"), var_get_label (v));
+ else
+ tab_joint_text (t, 1, r, 2, r, TAB_LEFT, var_get_label (v));
r++;
}
measure_to_string (var_get_measure (v)));
r++;
- if (role != ROLE_NONE)
+ if (role != ROLE_INPUT)
{
tab_joint_text_format (t, 1, r, 2, r, TAB_LEFT,
_("Role: %s"), var_role_to_string (role));
double x, y;
mv_get_range (mv, &x, &y);
if (x == LOWEST)
- cp += sprintf (cp, "LOWEST THRU %g", y);
+ cp += sprintf (cp, "LOWEST THRU %.*g", DBL_DIG + 1, y);
else if (y == HIGHEST)
- cp += sprintf (cp, "%g THRU HIGHEST", x);
+ cp += sprintf (cp, "%.*g THRU HIGHEST", DBL_DIG + 1, x);
else
- cp += sprintf (cp, "%g THRU %g", x, y);
+ cp += sprintf (cp, "%.*g THRU %.*g",
+ DBL_DIG + 1, x,
+ DBL_DIG + 1, y);
cnt++;
}
for (i = 0; i < mv_n_values (mv); i++)
if (cnt++ > 0)
cp += sprintf (cp, "; ");
if (var_is_numeric (v))
- cp += sprintf (cp, "%g", value->f);
+ cp += sprintf (cp, "%.*g", DBL_DIG + 1, value->f);
else
{
int width = var_get_width (v);
free (vl);
}
+\f
+/* Encoding analysis. */
+
+static const char *encoding_names[] = {
+ /* These encodings are from http://encoding.spec.whatwg.org/, as retrieved
+ February 2014. Encodings not supported by glibc and encodings relevant
+ only to HTML have been removed. */
+ "utf-8",
+ "windows-1252",
+ "iso-8859-2",
+ "iso-8859-3",
+ "iso-8859-4",
+ "iso-8859-5",
+ "iso-8859-6",
+ "iso-8859-7",
+ "iso-8859-8",
+ "iso-8859-10",
+ "iso-8859-13",
+ "iso-8859-14",
+ "iso-8859-16",
+ "macintosh",
+ "windows-874",
+ "windows-1250",
+ "windows-1251",
+ "windows-1253",
+ "windows-1254",
+ "windows-1255",
+ "windows-1256",
+ "windows-1257",
+ "windows-1258",
+ "koi8-r",
+ "koi8-u",
+ "ibm866",
+ "gb18030",
+ "big5",
+ "euc-jp",
+ "iso-2022-jp",
+ "shift_jis",
+ "euc-kr",
+
+ /* Added by user request. */
+ "ibm850",
+ "din_66003",
+};
+#define N_ENCODING_NAMES (sizeof encoding_names / sizeof *encoding_names)
+
+struct encoding
+ {
+ uint64_t encodings;
+ char **utf8_strings;
+ unsigned int hash;
+ };
+
+static char **
+recode_strings (struct pool *pool,
+ char **strings, bool *ids, size_t n,
+ const char *encoding)
+{
+ char **utf8_strings;
+ size_t i;
+
+ utf8_strings = pool_alloc (pool, n * sizeof *utf8_strings);
+ for (i = 0; i < n; i++)
+ {
+ struct substring utf8;
+ int error;
+
+ error = recode_pedantically ("UTF-8", encoding, ss_cstr (strings[i]),
+ pool, &utf8);
+ if (!error)
+ {
+ ss_rtrim (&utf8, ss_cstr (" "));
+ utf8.string[utf8.length] = '\0';
+
+ if (ids[i] && !id_is_plausible (utf8.string, false))
+ error = EINVAL;
+ }
+
+ if (error)
+ return NULL;
+
+ utf8_strings[i] = utf8.string;
+ }
+
+ return utf8_strings;
+}
+
+static struct encoding *
+find_duplicate_encoding (struct encoding *encodings, size_t n_encodings,
+ char **utf8_strings, size_t n_strings,
+ unsigned int hash)
+{
+ struct encoding *e;
+
+ for (e = encodings; e < &encodings[n_encodings]; e++)
+ {
+ int i;
+
+ if (e->hash != hash)
+ goto next_encoding;
+
+ for (i = 0; i < n_strings; i++)
+ if (strcmp (utf8_strings[i], e->utf8_strings[i]))
+ goto next_encoding;
+
+ return e;
+ next_encoding:;
+ }
+
+ return NULL;
+}
+
+static bool
+all_equal (const struct encoding *encodings, size_t n_encodings,
+ size_t string_idx)
+{
+ const char *s0;
+ size_t i;
+
+ s0 = encodings[0].utf8_strings[string_idx];
+ for (i = 1; i < n_encodings; i++)
+ if (strcmp (s0, encodings[i].utf8_strings[string_idx]))
+ return false;
+
+ return true;
+}
+
+static int
+equal_prefix (const struct encoding *encodings, size_t n_encodings,
+ size_t string_idx)
+{
+ const char *s0;
+ size_t prefix;
+ size_t i;
+
+ s0 = encodings[0].utf8_strings[string_idx];
+ prefix = strlen (s0);
+ for (i = 1; i < n_encodings; i++)
+ {
+ const char *si = encodings[i].utf8_strings[string_idx];
+ size_t j;
+
+ for (j = 0; j < prefix; j++)
+ if (s0[j] != si[j])
+ {
+ prefix = j;
+ if (!prefix)
+ return 0;
+ break;
+ }
+ }
+
+ while (prefix > 0 && s0[prefix - 1] != ' ')
+ prefix--;
+ return prefix;
+}
+
+static int
+equal_suffix (const struct encoding *encodings, size_t n_encodings,
+ size_t string_idx)
+{
+ const char *s0;
+ size_t s0_len;
+ size_t suffix;
+ size_t i;
+
+ s0 = encodings[0].utf8_strings[string_idx];
+ s0_len = strlen (s0);
+ suffix = s0_len;
+ for (i = 1; i < n_encodings; i++)
+ {
+ const char *si = encodings[i].utf8_strings[string_idx];
+ size_t si_len = strlen (si);
+ size_t j;
+
+ if (si_len < suffix)
+ suffix = si_len;
+ for (j = 0; j < suffix; j++)
+ if (s0[s0_len - j - 1] != si[si_len - j - 1])
+ {
+ suffix = j;
+ if (!suffix)
+ return 0;
+ break;
+ }
+ }
+
+ while (suffix > 0 && s0[s0_len - suffix] != ' ')
+ suffix--;
+ return suffix;
+}
+
+static void
+report_encodings (const struct file_handle *h, const struct sfm_reader *r)
+{
+ char **titles;
+ char **strings;
+ bool *ids;
+ struct encoding encodings[N_ENCODING_NAMES];
+ size_t n_encodings, n_strings, n_unique_strings;
+ size_t i, j;
+ struct tab_table *t;
+ struct text_item *text;
+ struct pool *pool;
+ size_t row;
+
+ pool = pool_create ();
+ n_strings = sfm_get_strings (r, pool, &titles, &ids, &strings);
+
+ n_encodings = 0;
+ for (i = 0; i < N_ENCODING_NAMES; i++)
+ {
+ char **utf8_strings;
+ struct encoding *e;
+ unsigned int hash;
+
+ utf8_strings = recode_strings (pool, strings, ids, n_strings,
+ encoding_names[i]);
+ if (!utf8_strings)
+ continue;
+
+ /* Hash utf8_strings. */
+ hash = 0;
+ for (j = 0; j < n_strings; j++)
+ hash = hash_string (utf8_strings[j], hash);
+
+ /* If there's a duplicate encoding, just mark it. */
+ e = find_duplicate_encoding (encodings, n_encodings,
+ utf8_strings, n_strings, hash);
+ if (e)
+ {
+ e->encodings |= UINT64_C (1) << i;
+ continue;
+ }
+
+ e = &encodings[n_encodings++];
+ e->encodings = UINT64_C (1) << i;
+ e->utf8_strings = utf8_strings;
+ e->hash = hash;
+ }
+ if (!n_encodings)
+ {
+ msg (SW, _("No valid encodings found."));
+ pool_destroy (pool);
+ return;
+ }
+
+ text = text_item_create_format (
+ TEXT_ITEM_PARAGRAPH,
+ _("The following table lists the encodings that can successfully read %s, "
+ "by specifying the encoding name on the GET command's ENCODING "
+ "subcommand. Encodings that yield identical text are listed "
+ "together."), fh_get_name (h));
+ text_item_submit (text);
+
+ t = tab_create (2, n_encodings + 1);
+ tab_title (t, _("Usable encodings for %s."), fh_get_name (h));
+ tab_headers (t, 1, 0, 1, 0);
+ tab_box (t, TAL_1, TAL_1, -1, -1, 0, 0, 1, n_encodings);
+ tab_hline (t, TAL_1, 0, 1, 1);
+ tab_text (t, 0, 0, TAB_RIGHT, "#");
+ tab_text (t, 1, 0, TAB_LEFT, _("Encodings"));
+ for (i = 0; i < n_encodings; i++)
+ {
+ struct string s;
+
+ ds_init_empty (&s);
+ for (j = 0; j < 64; j++)
+ if (encodings[i].encodings & (UINT64_C (1) << j))
+ ds_put_format (&s, "%s, ", encoding_names[j]);
+ ds_chomp (&s, ss_cstr (", "));
+
+ tab_text_format (t, 0, i + 1, TAB_RIGHT, "%zu", i + 1);
+ tab_text (t, 1, i + 1, TAB_LEFT, ds_cstr (&s));
+ ds_destroy (&s);
+ }
+ tab_submit (t);
+
+ n_unique_strings = 0;
+ for (i = 0; i < n_strings; i++)
+ if (!all_equal (encodings, n_encodings, i))
+ n_unique_strings++;
+ if (!n_unique_strings)
+ {
+ pool_destroy (pool);
+ return;
+ }
+
+ text = text_item_create_format (
+ TEXT_ITEM_PARAGRAPH,
+ _("The following table lists text strings in the file dictionary that "
+ "the encodings above interpret differently, along with those "
+ "interpretations."));
+ text_item_submit (text);
+
+ t = tab_create (3, (n_encodings * n_unique_strings) + 1);
+ tab_title (t, _("%s encoded text strings."), fh_get_name (h));
+ tab_headers (t, 1, 0, 1, 0);
+ tab_box (t, TAL_1, TAL_1, -1, -1, 0, 0, 2, n_encodings * n_unique_strings);
+ tab_hline (t, TAL_1, 0, 2, 1);
+
+ tab_text (t, 0, 0, TAB_LEFT, _("Purpose"));
+ tab_text (t, 1, 0, TAB_RIGHT, "#");
+ tab_text (t, 2, 0, TAB_LEFT, _("Text"));
+
+ row = 1;
+ for (i = 0; i < n_strings; i++)
+ if (!all_equal (encodings, n_encodings, i))
+ {
+ int prefix = equal_prefix (encodings, n_encodings, i);
+ int suffix = equal_suffix (encodings, n_encodings, i);
+
+ tab_joint_text (t, 0, row, 0, row + n_encodings - 1,
+ TAB_LEFT, titles[i]);
+ tab_hline (t, TAL_1, 0, 2, row);
+ for (j = 0; j < n_encodings; j++)
+ {
+ const char *s = encodings[j].utf8_strings[i] + prefix;
+
+ tab_text_format (t, 1, row, TAB_RIGHT, "%zu", j + 1);
+ if (prefix || suffix)
+ {
+ size_t len = strlen (s) - suffix;
+ struct string entry;
+
+ ds_init_empty (&entry);
+ if (prefix)
+ ds_put_cstr (&entry, "...");
+ ds_put_substring (&entry, ss_buffer (s, len));
+ if (suffix)
+ ds_put_cstr (&entry, "...");
+ tab_text (t, 2, row, TAB_LEFT, ds_cstr (&entry));
+ }
+ else
+ tab_text (t, 2, row, TAB_LEFT, s);
+ row++;
+ }
+ }
+ tab_submit (t);
+
+ pool_destroy (pool);
+}