/* PSPP - a program for statistical analysis.
- Copyright (C) 1997-9, 2000, 2006, 2007, 2009, 2010, 2011 Free Software Foundation, Inc.
+ Copyright (C) 1997-2000, 2006-2012 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 "libpspp/message.h"
#include "libpspp/misc.h"
#include "libpspp/str.h"
+#include "libpspp/string-array.h"
#include "libpspp/version.h"
#include "gl/xmemdup0.h"
bool compress; /* 1=compressed, 0=not compressed. */
casenumber case_cnt; /* Number of cases written so far. */
+ uint8_t space; /* ' ' in the file's character encoding. */
/* Compression buffering.
static void write_header (struct sfm_writer *, const struct dictionary *);
static void write_variable (struct sfm_writer *, const struct variable *);
-static void write_value_labels (struct sfm_writer *, struct variable *,
- int idx);
-static void write_integer_info_record (struct sfm_writer *);
+static void write_value_labels (struct sfm_writer *,
+ const struct dictionary *);
+static void write_integer_info_record (struct sfm_writer *,
+ const struct dictionary *);
static void write_float_info_record (struct sfm_writer *);
static void write_longvar_table (struct sfm_writer *w,
static inline void convert_double_to_output_format (double, uint8_t[8]);
static void write_float (struct sfm_writer *, double);
static void write_string (struct sfm_writer *, const char *, size_t);
+static void write_utf8_string (struct sfm_writer *, const char *encoding,
+ const char *string, size_t width);
+static void write_utf8_record (struct sfm_writer *, const char *encoding,
+ const struct string *content, int subtype);
+static void write_string_record (struct sfm_writer *,
+ const struct substring content, int subtype);
static void write_bytes (struct sfm_writer *, const void *, size_t);
static void write_zeros (struct sfm_writer *, size_t);
static void write_spaces (struct sfm_writer *, size_t);
sfm_open_writer (struct file_handle *fh, struct dictionary *d,
struct sfm_write_options opts)
{
+ struct encoding_info encoding_info;
struct sfm_writer *w;
mode_t mode;
- int idx;
int i;
/* Check version. */
goto error;
}
+ get_encoding_info (&encoding_info, dict_get_encoding (d));
+ w->space = encoding_info.space[0];
+
/* Write the file header. */
write_header (w, d);
for (i = 0; i < dict_get_var_cnt (d); i++)
write_variable (w, dict_get_var (d, i));
- /* Write out value labels. */
- idx = 0;
- for (i = 0; i < dict_get_var_cnt (d); i++)
- {
- struct variable *v = dict_get_var (d, i);
+ write_value_labels (w, d);
- write_value_labels (w, v, idx);
- idx += sfm_width_to_octs (var_get_width (v));
- }
-
- if (dict_get_documents (d) != NULL)
+ if (dict_get_document_line_cnt (d) > 0)
write_documents (w, d);
- write_integer_info_record (w);
+ write_integer_info_record (w, d);
write_float_info_record (w);
write_mrsets (w, d, true);
static void
write_header (struct sfm_writer *w, const struct dictionary *d)
{
+ const char *dict_encoding = dict_get_encoding (d);
char prod_name[61];
char creation_date[10];
char creation_time[9];
time_t t;
/* Record-type code. */
- write_string (w, "$FL2", 4);
+ if (is_encoding_ebcdic_compatible (dict_encoding))
+ write_string (w, EBCDIC_MAGIC, 4);
+ else
+ write_string (w, ASCII_MAGIC, 4);
/* Product identification. */
snprintf (prod_name, sizeof prod_name, "@(#) SPSS DATA FILE %s - %s",
version, host_system);
- write_string (w, prod_name, 60);
+ write_utf8_string (w, dict_encoding, prod_name, 60);
/* Layout code. */
write_int (w, 2);
snprintf (creation_time, sizeof creation_time,
"%02d:%02d:%02d", hour - 1, min - 1, sec - 1);
}
- write_string (w, creation_date, 9);
- write_string (w, creation_time, 8);
+ write_utf8_string (w, dict_encoding, creation_date, 9);
+ write_utf8_string (w, dict_encoding, creation_time, 8);
/* File label. */
file_label = dict_get_label (d);
if (file_label == NULL)
file_label = "";
- write_string (w, file_label, 64);
+ write_utf8_string (w, dict_encoding, file_label, 64);
/* Padding. */
write_zeros (w, 3);
int width = var_get_width (v);
int segment_cnt = sfm_width_to_segments (width);
int seg0_width = sfm_segment_alloc_width (width, 0);
+ const char *encoding = var_get_encoding (v);
struct missing_values mv;
int i;
/* Short name.
The full name is in a translation table written
separately. */
- write_string (w, var_get_short_name (v, 0), 8);
+ write_utf8_string (w, encoding, var_get_short_name (v, 0), 8);
/* Value label. */
if (var_has_label (v))
{
- char *label = recode_string (var_get_encoding (v), UTF8, var_get_label (v), -1);
+ char *label = recode_string (encoding, UTF8, var_get_label (v), -1);
size_t label_len = MIN (strlen (label), 255);
size_t padded_len = ROUND_UP (label_len, 4);
write_int (w, label_len);
write_int (w, 0); /* No missing values. */
write_format (w, fmt, seg_width); /* Print format. */
write_format (w, fmt, seg_width); /* Write format. */
- write_string (w, var_get_short_name (v, i), 8);
+ write_utf8_string (w, encoding, var_get_short_name (v, i), 8);
write_variable_continuation_records (w, seg_width);
}
mv_destroy (&mv);
}
-/* Writes the value labels for variable V having system file
- variable index IDX to system file W.
+/* Writes the value labels to system file W.
Value labels for long string variables are written separately,
by write_long_string_value_labels. */
static void
-write_value_labels (struct sfm_writer *w, struct variable *v, int idx)
+write_value_labels (struct sfm_writer *w, const struct dictionary *d)
{
- const struct val_labs *val_labs;
- const struct val_lab **labels;
- size_t n_labels;
+ struct label_set
+ {
+ struct hmap_node hmap_node;
+ const struct val_labs *val_labs;
+ int *indexes;
+ size_t n_indexes, allocated_indexes;
+ };
+
+ size_t n_sets, allocated_sets;
+ struct label_set **sets;
+ struct hmap same_sets;
size_t i;
+ int idx;
- val_labs = var_get_value_labels (v);
- n_labels = val_labs_count (val_labs);
- if (n_labels == 0 || var_get_width (v) > 8)
- return;
+ n_sets = allocated_sets = 0;
+ sets = NULL;
+ hmap_init (&same_sets);
- /* Value label record. */
- write_int (w, 3); /* Record type. */
- write_int (w, val_labs_count (val_labs));
- labels = val_labs_sorted (val_labs);
- for (i = 0; i < n_labels; i++)
+ idx = 0;
+ for (i = 0; i < dict_get_var_cnt (d); i++)
{
- const struct val_lab *vl = labels[i];
- char *label = recode_string (var_get_encoding (v), UTF8, val_lab_get_label (vl), -1);
- uint8_t len = MIN (strlen (label), 255);
-
- write_value (w, val_lab_get_value (vl), var_get_width (v));
- write_bytes (w, &len, 1);
- write_bytes (w, label, len);
- write_zeros (w, REM_RND_UP (len + 1, 8));
- free (label);
+ struct variable *v = dict_get_var (d, i);
+
+ if (var_has_value_labels (v) && var_get_width (v) <= 8)
+ {
+ const struct val_labs *val_labs = var_get_value_labels (v);
+ unsigned int hash = val_labs_hash (val_labs, 0);
+ struct label_set *set;
+
+ HMAP_FOR_EACH_WITH_HASH (set, struct label_set, hmap_node,
+ hash, &same_sets)
+ {
+ if (val_labs_equal (set->val_labs, val_labs))
+ {
+ if (set->n_indexes >= set->allocated_indexes)
+ set->indexes = x2nrealloc (set->indexes,
+ &set->allocated_indexes,
+ sizeof *set->indexes);
+ set->indexes[set->n_indexes++] = idx;
+ goto next_var;
+ }
+ }
+
+ set = xmalloc (sizeof *set);
+ set->val_labs = val_labs;
+ set->indexes = xmalloc (sizeof *set->indexes);
+ set->indexes[0] = idx;
+ set->n_indexes = 1;
+ set->allocated_indexes = 1;
+ hmap_insert (&same_sets, &set->hmap_node, hash);
+
+ if (n_sets >= allocated_sets)
+ sets = x2nrealloc (sets, &allocated_sets, sizeof *sets);
+ sets[n_sets++] = set;
+ }
+
+ next_var:
+ idx += sfm_width_to_octs (var_get_width (v));
+ }
+
+ for (i = 0; i < n_sets; i++)
+ {
+ const struct label_set *set = sets[i];
+ const struct val_labs *val_labs = set->val_labs;
+ size_t n_labels = val_labs_count (val_labs);
+ int width = val_labs_get_width (val_labs);
+ const struct val_lab **labels;
+ size_t j;
+
+ /* Value label record. */
+ write_int (w, 3); /* Record type. */
+ write_int (w, n_labels);
+ labels = val_labs_sorted (val_labs);
+ for (j = 0; j < n_labels; j++)
+ {
+ const struct val_lab *vl = labels[j];
+ char *label = recode_string (dict_get_encoding (d), UTF8,
+ val_lab_get_escaped_label (vl), -1);
+ uint8_t len = MIN (strlen (label), 255);
+
+ write_value (w, val_lab_get_value (vl), width);
+ write_bytes (w, &len, 1);
+ write_bytes (w, label, len);
+ write_zeros (w, REM_RND_UP (len + 1, 8));
+ free (label);
+ }
+ free (labels);
+
+ /* Value label variable record. */
+ write_int (w, 4); /* Record type. */
+ write_int (w, set->n_indexes);
+ for (j = 0; j < set->n_indexes; j++)
+ write_int (w, set->indexes[j] + 1);
}
- free (labels);
- /* Value label variable record. */
- write_int (w, 4); /* Record type. */
- write_int (w, 1); /* Number of variables. */
- write_int (w, idx + 1); /* Variable's dictionary index. */
+ for (i = 0; i < n_sets; i++)
+ {
+ struct label_set *set = sets[i];
+
+ free (set->indexes);
+ free (set);
+ }
+ free (sets);
+ hmap_destroy (&same_sets);
}
/* Writes record type 6, document record. */
static void
write_documents (struct sfm_writer *w, const struct dictionary *d)
{
- size_t line_cnt = dict_get_document_line_cnt (d);
+ const struct string_array *docs = dict_get_documents (d);
+ const char *enc = dict_get_encoding (d);
+ size_t i;
write_int (w, 6); /* Record type. */
- write_int (w, line_cnt);
- write_bytes (w, dict_get_documents (d), line_cnt * DOC_LINE_LENGTH);
+ write_int (w, docs->n);
+ for (i = 0; i < docs->n; i++)
+ {
+ char *s = recode_string (enc, "UTF-8", docs->strings[i], -1);
+ size_t s_len = strlen (s);
+ size_t write_len = MIN (s_len, DOC_LINE_LENGTH);
+
+ write_bytes (w, s, write_len);
+ write_spaces (w, DOC_LINE_LENGTH - write_len);
+ free (s);
+ }
}
static void
}
}
-static void
-write_attribute_record (struct sfm_writer *w, const struct string *content,
- int subtype)
-{
- write_int (w, 7);
- write_int (w, subtype);
- write_int (w, 1);
- write_int (w, ds_length (content));
- write_bytes (w, ds_data (content), ds_length (content));
-}
-
static void
write_data_file_attributes (struct sfm_writer *w,
const struct dictionary *d)
{
struct string s = DS_EMPTY_INITIALIZER;
put_attrset (&s, dict_get_attributes (d));
- write_attribute_record (w, &s, 17);
+ write_utf8_record (w, dict_get_encoding (d), &s, 17);
ds_destroy (&s);
}
{
if (n_attrsets++)
ds_put_byte (&s, '/');
- ds_put_format (&s, "%s:", var_get_short_name (v, 0));
+ ds_put_format (&s, "%s:", var_get_name (v));
put_attrset (&s, attrs);
}
}
- if (n_attrsets)
- write_attribute_record (w, &s, 18);
+ if (n_attrsets)
+ write_utf8_record (w, dict_get_encoding (d), &s, 18);
ds_destroy (&s);
}
write_mrsets (struct sfm_writer *w, const struct dictionary *dict,
bool pre_v14)
{
+ const char *encoding = dict_get_encoding (dict);
struct string s = DS_EMPTY_INITIALIZER;
size_t n_mrsets;
size_t i;
+ if (is_encoding_ebcdic_compatible (encoding))
+ {
+ /* FIXME. */
+ return;
+ }
+
n_mrsets = dict_get_n_mrsets (dict);
if (n_mrsets == 0)
return;
for (i = 0; i < n_mrsets; i++)
{
const struct mrset *mrset = dict_get_mrset (dict, i);
- const char *label;
+ char *name;
size_t j;
if ((mrset->type != MRSET_MD || mrset->cat_source != MRSET_COUNTEDVALUES)
!= pre_v14)
continue;
- ds_put_format (&s, "%s=", mrset->name);
+ name = recode_string (encoding, "UTF-8", mrset->name, -1);
+ ds_put_format (&s, "%s=", name);
+ free (name);
+
if (mrset->type == MRSET_MD)
{
char *counted;
ds_put_byte (&s, 'C');
ds_put_byte (&s, ' ');
- label = mrset->label && !mrset->label_from_var_label ? mrset->label : "";
- ds_put_format (&s, "%zu %s", strlen (label), label);
+ if (mrset->label && !mrset->label_from_var_label)
+ {
+ char *label = recode_string (encoding, "UTF-8", mrset->label, -1);
+ ds_put_format (&s, "%zu %s", strlen (label), label);
+ free (label);
+ }
+ else
+ ds_put_cstr (&s, "0 ");
for (j = 0; j < mrset->n_vars; j++)
- ds_put_format (&s, " %s", var_get_short_name (mrset->vars[j], 0));
+ {
+ const char *short_name_utf8 = var_get_short_name (mrset->vars[j], 0);
+ char *short_name = recode_string (encoding, "UTF-8",
+ short_name_utf8, -1);
+ str_lowercase (short_name);
+ ds_put_format (&s, " %s", short_name);
+ free (short_name);
+ }
ds_put_byte (&s, '\n');
}
- write_attribute_record (w, &s, pre_v14 ? 7 : 19);
+
+ if (!ds_is_empty (&s))
+ write_string_record (w, ds_ss (&s), pre_v14 ? 7 : 19);
ds_destroy (&s);
}
var_get_short_name (v, 0), var_get_width (v), 0);
}
if (!ds_is_empty (&map))
- {
- write_int (w, 7); /* Record type. */
- write_int (w, 14); /* Record subtype. */
- write_int (w, 1); /* Data item (char) size. */
- write_int (w, ds_length (&map)); /* Number of data items. */
- write_bytes (w, ds_data (&map), ds_length (&map));
- }
+ write_utf8_record (w, dict_get_encoding (dict), &map, 14);
ds_destroy (&map);
}
{
struct variable *var = dict_get_var (dict, i);
const struct val_labs *val_labs = var_get_value_labels (var);
+ const char *encoding = var_get_encoding (var);
int width = var_get_width (var);
const struct val_lab *val_lab;
if (val_labs_count (val_labs) == 0 || width < 9)
continue;
- size += 12 + strlen (var_get_name (var));
+ size += 12;
+ size += recode_string_len (encoding, "UTF-8", var_get_name (var), -1);
for (val_lab = val_labs_first (val_labs); val_lab != NULL;
val_lab = val_labs_next (val_labs, val_lab))
- size += 8 + width + strlen (val_lab_get_label (val_lab));
+ {
+ size += 8 + width;
+ size += recode_string_len (encoding, "UTF-8",
+ val_lab_get_escaped_label (val_lab), -1);
+ }
}
if (size == 0)
return;
{
struct variable *var = dict_get_var (dict, i);
const struct val_labs *val_labs = var_get_value_labels (var);
- const char *var_name = var_get_name (var);
+ const char *encoding = var_get_encoding (var);
int width = var_get_width (var);
const struct val_lab *val_lab;
+ char *var_name;
if (val_labs_count (val_labs) == 0 || width < 9)
continue;
+ var_name = recode_string (encoding, "UTF-8", var_get_name (var), -1);
write_int (w, strlen (var_name));
write_bytes (w, var_name, strlen (var_name));
+ free (var_name);
+
write_int (w, width);
write_int (w, val_labs_count (val_labs));
for (val_lab = val_labs_first (val_labs); val_lab != NULL;
val_lab = val_labs_next (val_labs, val_lab))
{
- const char *label = val_lab_get_label (val_lab);
- size_t label_length = strlen (label);
+ char *label;
+ size_t len;
write_int (w, width);
write_bytes (w, value_str (val_lab_get_value (val_lab), width),
width);
- write_int (w, label_length);
- write_bytes (w, label, label_length);
+
+ label = recode_string (var_get_encoding (var), "UTF-8",
+ val_lab_get_escaped_label (val_lab), -1);
+ len = strlen (label);
+ write_int (w, len);
+ write_bytes (w, label, len);
+ free (label);
}
}
assert (ftello (w->file) == start + size);
write_encoding_record (struct sfm_writer *w,
const struct dictionary *d)
{
- const char *enc = dict_get_encoding (d);
-
- if ( NULL == enc)
- return;
-
- write_int (w, 7); /* Record type. */
- write_int (w, 20); /* Record subtype. */
- write_int (w, 1); /* Data item (char) size. */
- write_int (w, strlen (enc)); /* Number of data items. */
- write_string (w, enc, strlen (enc));
+ /* IANA says "...character set names may be up to 40 characters taken
+ from the printable characters of US-ASCII," so character set names
+ don't need to be recoded to be in UTF-8.
+
+ We convert encoding names to uppercase because SPSS writes encoding
+ names in uppercase. */
+ char *encoding = xstrdup (dict_get_encoding (d));
+ str_uppercase (encoding);
+ write_string_record (w, ss_cstr (encoding), 20);
+ free (encoding);
}
-
/* Writes the long variable name table. */
static void
write_longvar_table (struct sfm_writer *w, const struct dictionary *dict)
for (i = 0; i < dict_get_var_cnt (dict); i++)
{
struct variable *v = dict_get_var (dict, i);
- char *longname = recode_string (dict_get_encoding (dict), UTF8, var_get_name (v), -1);
-
if (i)
ds_put_byte (&map, '\t');
ds_put_format (&map, "%s=%s",
- var_get_short_name (v, 0), longname);
- free (longname);
+ var_get_short_name (v, 0), var_get_name (v));
}
-
- write_int (w, 7); /* Record type. */
- write_int (w, 13); /* Record subtype. */
- write_int (w, 1); /* Data item (char) size. */
- write_int (w, ds_length (&map)); /* Number of data items. */
- write_bytes (w, ds_data (&map), ds_length (&map));
-
+ write_utf8_record (w, dict_get_encoding (dict), &map, 13);
ds_destroy (&map);
}
/* Write integer information record. */
static void
-write_integer_info_record (struct sfm_writer *w)
+write_integer_info_record (struct sfm_writer *w,
+ const struct dictionary *d)
{
+ const char *dict_encoding = dict_get_encoding (d);
int version_component[3];
int float_format;
+ int codepage;
/* Parse the version string. */
memset (version_component, 0, sizeof version_component);
else
abort ();
+ /* Choose codepage. */
+ codepage = sys_get_codepage_from_encoding (dict_encoding);
+ if (codepage == 0)
+ {
+ /* The codepage is unknown. Choose a default.
+
+ For an EBCDIC-compatible encoding, use the value for EBCDIC.
+
+ For an ASCII-compatible encoding, default to "7-bit ASCII", because
+ many files use this codepage number regardless of their actual
+ encoding.
+ */
+ if (is_encoding_ascii_compatible (dict_encoding))
+ codepage = 2;
+ else if (is_encoding_ebcdic_compatible (dict_encoding))
+ codepage = 1;
+ }
+
/* Write record. */
write_int (w, 7); /* Record type. */
write_int (w, 3); /* Record subtype. */
write_int (w, float_format);
write_int (w, 1); /* Compression code. */
write_int (w, INTEGER_NATIVE == INTEGER_MSB_FIRST ? 1 : 2);
- write_int (w, 2); /* 7-bit ASCII. */
+ write_int (w, codepage);
}
/* Write floating-point information record. */
assert (w->data_cnt < 8);
assert (size <= 8);
- memset (w->data[w->data_cnt], ' ', 8);
+ memset (w->data[w->data_cnt], w->space, 8);
memcpy (w->data[w->data_cnt], data, size);
w->data_cnt++;
}
}
}
-/* Writes null-terminated STRING in a field of the given WIDTH to
- W. If STRING is longer than WIDTH, it is truncated; if WIDTH
- is narrowed, it is padded on the right with spaces. */
+/* Writes null-terminated STRING in a field of the given WIDTH to W. If STRING
+ is longer than WIDTH, it is truncated; if STRING is shorter than WIDTH, it
+ is padded on the right with spaces. */
static void
write_string (struct sfm_writer *w, const char *string, size_t width)
{
size_t pad_bytes = width - data_bytes;
write_bytes (w, string, data_bytes);
while (pad_bytes-- > 0)
- putc (' ', w->file);
+ putc (w->space, w->file);
+}
+
+/* Recodes null-terminated UTF-8 encoded STRING into ENCODING, and writes the
+ recoded version in a field of the given WIDTH to W. The string is truncated
+ or padded on the right with spaces to exactly WIDTH bytes. */
+static void
+write_utf8_string (struct sfm_writer *w, const char *encoding,
+ const char *string, size_t width)
+{
+ char *s = recode_string (encoding, "UTF-8", string, -1);
+ write_string (w, s, width);
+ free (s);
+}
+
+/* Writes a record with type 7, subtype SUBTYPE that contains CONTENT recoded
+ from UTF-8 encoded into ENCODING. */
+static void
+write_utf8_record (struct sfm_writer *w, const char *encoding,
+ const struct string *content, int subtype)
+{
+ struct substring s;
+
+ s = recode_substring_pool (encoding, "UTF-8", ds_ss (content), NULL);
+ write_string_record (w, s, subtype);
+ ss_dealloc (&s);
+}
+
+/* Writes a record with type 7, subtype SUBTYPE that contains the string
+ CONTENT. */
+static void
+write_string_record (struct sfm_writer *w,
+ const struct substring content, int subtype)
+{
+ write_int (w, 7);
+ write_int (w, subtype);
+ write_int (w, 1);
+ write_int (w, ss_length (content));
+ write_bytes (w, ss_data (content), ss_length (content));
}
/* Writes SIZE bytes of DATA to W's output file. */
write_spaces (struct sfm_writer *w, size_t n)
{
while (n-- > 0)
- putc (' ', w->file);
+ putc (w->space, w->file);
}
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