/* PSPP - computes sample statistics.
- Copyright (C) 1997-9, 2000 Free Software Foundation, Inc.
+ Copyright (C) 1997-9, 2000, 2006 Free Software Foundation, Inc.
Written by Ben Pfaff <blp@gnu.org>.
This program is free software; you can redistribute it and/or
02110-1301, USA. */
#include <config.h>
+
#include "sys-file-writer.h"
#include "sfm-private.h"
-#include <libpspp/message.h>
-#include <stdlib.h>
+
#include <ctype.h>
#include <errno.h>
#include <fcntl.h>
+#include <stdlib.h>
#include <sys/stat.h>
#include <time.h>
#include <unistd.h>
+
#include <libpspp/alloc.h>
-#include "case.h"
-#include "dictionary.h"
-#include <libpspp/message.h>
-#include "file-handle-def.h"
#include <libpspp/hash.h>
#include <libpspp/magic.h>
+#include <libpspp/message.h>
#include <libpspp/misc.h>
-#include "settings.h"
-#include "stat-macros.h"
#include <libpspp/str.h>
+#include <libpspp/version.h>
+
+#include "case.h"
+#include "dictionary.h"
+#include "file-handle-def.h"
+#include "settings.h"
#include "value-labels.h"
#include "variable.h"
-#include <libpspp/version.h>
+
+#include "stat-macros.h"
+#include "minmax.h"
#include "gettext.h"
#define _(msgid) gettext (msgid)
int compress; /* 1=compressed, 0=not compressed. */
int case_cnt; /* Number of cases written so far. */
size_t flt64_cnt; /* Number of flt64 elements in case. */
+ bool has_vls; /* Does the dict have very long strings? */
/* Compression buffering. */
flt64 *buf; /* Buffered data. */
/* Variables. */
struct sfm_var *vars; /* Variables. */
size_t var_cnt; /* Number of variables. */
+ size_t var_cnt_vls; /* Number of variables including
+ very long string components. */
};
/* A variable in a system file. */
static char *append_string_max (char *, const char *, const char *);
static void write_header (struct sfm_writer *, const struct dictionary *);
static void buf_write (struct sfm_writer *, const void *, size_t);
-static void write_variable (struct sfm_writer *, struct variable *);
+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_rec_7_34 (struct sfm_writer *);
static void write_longvar_table (struct sfm_writer *w,
const struct dictionary *dict);
+static void write_vls_length_table (struct sfm_writer *w,
+ const struct dictionary *dict);
+
+
static void write_variable_display_parameters (struct sfm_writer *w,
const struct dictionary *dict);
static void write_documents (struct sfm_writer *, const struct dictionary *);
-static int does_dict_need_translation (const struct dictionary *);
static inline int
var_flt64_cnt (const struct variable *v)
+{
+ assert(sizeof(flt64) == MAX_SHORT_STRING);
+ return width_to_bytes(v->width) / MAX_SHORT_STRING ;
+}
+
+static inline int
+var_flt64_cnt_nom (const struct variable *v)
{
return v->type == NUMERIC ? 1 : DIV_RND_UP (v->width, sizeof (flt64));
}
+
/* Returns default options for writing a system file. */
struct sfm_write_options
sfm_writer_default_options (void)
return opts;
}
+
+/* Return a short variable name to be used as the continuation of the
+ variable with the short name SN.
+
+ FIXME: Need to resolve clashes somehow.
+
+ */
+static const char *
+cont_var_name(const char *sn, int idx)
+{
+ static char s[SHORT_NAME_LEN + 1];
+
+ char abb[SHORT_NAME_LEN + 1 - 3]= {0};
+
+ strncpy(abb, sn, SHORT_NAME_LEN - 3);
+
+ snprintf(s, SHORT_NAME_LEN + 1, "%s%03d", abb, idx);
+
+ return s;
+}
+
+
/* Opens the system file designated by file handle FH for writing
cases from dictionary D according to the given OPTS. If
COMPRESS is nonzero, the system file will be compressed.
w->fh = fh;
w->file = fdopen (fd, "w");
- w->needs_translation = does_dict_need_translation (d);
+ w->needs_translation = dict_compacting_would_change (d);
w->compress = opts.compress;
w->case_cnt = 0;
w->flt64_cnt = 0;
+ w->has_vls = false;
w->buf = w->end = w->ptr = NULL;
w->x = w->y = NULL;
w->var_cnt = dict_get_var_cnt (d);
+ w->var_cnt_vls = w->var_cnt;
w->vars = xnmalloc (w->var_cnt, sizeof *w->vars);
for (i = 0; i < w->var_cnt; i++)
{
const struct variable *dv = dict_get_var (d, i);
struct sfm_var *sv = &w->vars[i];
sv->width = dv->width;
+ /* spss compatibility nonsense */
+ if ( dv->width > MAX_LONG_STRING )
+ w->has_vls = true;
+
sv->fv = dv->fv;
sv->flt64_cnt = var_flt64_cnt (dv);
}
/* Write basic variable info. */
dict_assign_short_names (d);
for (i = 0; i < dict_get_var_cnt (d); i++)
- write_variable (w, dict_get_var (d, i));
+ {
+ int count = 0;
+ const struct variable *v = dict_get_var(d, i);
+ int wcount = v->width;
+
+ do {
+ struct variable var_cont = *v;
+ if ( v->type == ALPHA)
+ {
+ if ( 0 != count )
+ {
+ mv_init(&var_cont.miss, 0);
+ strcpy(var_cont.short_name,
+ cont_var_name(v->short_name, count));
+ var_cont.label = NULL;
+ w->var_cnt_vls++;
+ }
+ count++;
+ if ( wcount > MAX_LONG_STRING )
+ {
+ var_cont.width = MAX_LONG_STRING;
+ wcount -= EFFECTIVE_LONG_STRING_LENGTH;
+ }
+ else
+ {
+ var_cont.width = wcount;
+ wcount -= var_cont.width;
+ }
+
+ var_cont.write.w = var_cont.width;
+ var_cont.print.w = var_cont.width;
+ }
+
+ write_variable (w, &var_cont);
+ } while(wcount > 0);
+ }
/* Write out value labels. */
for (idx = i = 0; i < dict_get_var_cnt (d); i++)
if (opts.version >= 3)
write_longvar_table (w, d);
+ write_vls_length_table(w, d);
+
/* Write end-of-headers record. */
{
struct
{
- int32_t rec_type P;
- int32_t filler P;
- }
+ int32_t rec_type ;
+ int32_t filler ;
+ } ATTRIBUTE((packed))
rec_999;
rec_999.rec_type = 999;
goto error;
}
-static int
-does_dict_need_translation (const struct dictionary *d)
-{
- size_t case_idx;
- size_t i;
-
- case_idx = 0;
- for (i = 0; i < dict_get_var_cnt (d); i++)
- {
- struct variable *v = dict_get_var (d, i);
- if (v->fv != case_idx)
- return 0;
- case_idx += v->nv;
- }
- return 1;
-}
-
/* Returns value of X truncated to two least-significant digits. */
static int
rerange (int x)
w->flt64_cnt = 0;
for (i = 0; i < dict_get_var_cnt (d); i++)
- w->flt64_cnt += var_flt64_cnt (dict_get_var (d, i));
- hdr.case_size = w->flt64_cnt;
+ {
+ w->flt64_cnt += var_flt64_cnt (dict_get_var (d, i));
+ }
+ hdr.nominal_case_size = w->flt64_cnt;
hdr.compress = w->compress;
if (dict_get_weight (d) != NULL)
{
- struct variable *weight_var;
+ const struct variable *weight_var;
int recalc_weight_idx = 1;
int i;
/* Translates format spec from internal form in SRC to system file
format in DEST. */
static inline void
-write_format_spec (struct fmt_spec *src, int32_t *dest)
+write_format_spec (const struct fmt_spec *src, int32_t *dest)
{
- *dest = (formats[src->type].spss << 16) | (src->w << 8) | src->d;
+ assert (fmt_check_output (src));
+ *dest = (fmt_to_io (src->type) << 16) | (src->w << 8) | src->d;
}
/* Write the variable record(s) for primary variable P and secondary
variable S to system file W. */
static void
-write_variable (struct sfm_writer *w, struct variable *v)
+write_variable (struct sfm_writer *w, const struct variable *v)
{
struct sysfile_variable sv;
int nm; /* Number of missing values, possibly negative. */
sv.rec_type = 2;
- sv.type = v->width;
+ sv.type = min(v->width, MAX_LONG_STRING);
sv.has_var_label = (v->label != NULL);
mv_copy (&mv, &v->miss);
{
struct label
{
- int32_t label_len P;
- char label[255] P;
- }
+ int32_t label_len ;
+ char label[255] ;
+ } ATTRIBUTE((packed))
l;
int ext_len;
memset (&sv.write, 0, sizeof sv.write);
memset (&sv.name, 0, sizeof sv.name);
- pad_count = DIV_RND_UP (v->width, (int) sizeof (flt64)) - 1;
+ pad_count = DIV_RND_UP (min(v->width, MAX_LONG_STRING),
+ (int) sizeof (flt64)) - 1;
for (i = 0; i < pad_count; i++)
buf_write (w, &sv, sizeof sv);
}
{
struct value_label_rec
{
- int32_t rec_type P;
- int32_t n_labels P;
- flt64 labels[1] P;
- };
+ int32_t rec_type ;
+ int32_t n_labels ;
+ flt64 labels[1] ;
+ } ATTRIBUTE((packed));
struct var_idx_rec
{
- int32_t rec_type P;
- int32_t n_vars P;
- int32_t vars[1] P;
- };
+ int32_t rec_type ;
+ int32_t n_vars ;
+ int32_t vars[1] ;
+ } ATTRIBUTE((packed));
struct val_labs_iterator *i;
struct value_label_rec *vlr;
write_documents (struct sfm_writer *w, const struct dictionary *d)
{
struct
- {
- int32_t rec_type P; /* Always 6. */
- int32_t n_lines P; /* Number of lines of documents. */
- }
- rec_6;
+ {
+ int32_t rec_type ; /* Always 6. */
+ int32_t n_lines ; /* Number of lines of documents. */
+ } ATTRIBUTE((packed)) rec_6;
const char *documents;
size_t n_lines;
struct
{
- int32_t rec_type P;
- int32_t subtype P;
- int32_t elem_size P;
- int32_t n_elem P;
- } vdp_hdr;
+ int32_t rec_type ;
+ int32_t subtype ;
+ int32_t elem_size ;
+ int32_t n_elem ;
+ } ATTRIBUTE((packed)) vdp_hdr;
vdp_hdr.rec_type = 7;
vdp_hdr.subtype = 11;
vdp_hdr.elem_size = 4;
- vdp_hdr.n_elem = w->var_cnt * 3;
+ vdp_hdr.n_elem = w->var_cnt_vls * 3;
buf_write (w, &vdp_hdr, sizeof vdp_hdr);
struct variable *v;
struct
{
- int32_t measure P;
- int32_t width P;
- int32_t align P;
- }
- params;
+ int32_t measure ;
+ int32_t width ;
+ int32_t align ;
+ } ATTRIBUTE((packed)) params;
v = dict_get_var(dict, i);
params.align = v->alignment;
buf_write (w, ¶ms, sizeof(params));
+
+ if ( v->width > MAX_LONG_STRING )
+ {
+ int wcount = v->width - EFFECTIVE_LONG_STRING_LENGTH ;
+
+ while (wcount > 0)
+ {
+ params.width = wcount > MAX_LONG_STRING ? 32 : wcount;
+
+ buf_write (w, ¶ms, sizeof(params));
+
+ wcount -= EFFECTIVE_LONG_STRING_LENGTH ;
+ }
+ }
+ }
+}
+
+/* Writes the table of lengths for Very Long String Variables */
+static void
+write_vls_length_table (struct sfm_writer *w,
+ const struct dictionary *dict)
+{
+ int i;
+ struct
+ {
+ int32_t rec_type ;
+ int32_t subtype ;
+ int32_t elem_size ;
+ int32_t n_elem ;
+ } ATTRIBUTE((packed)) vls_hdr;
+
+ struct string vls_length_map;
+
+ ds_init_empty (&vls_length_map);
+
+ vls_hdr.rec_type = 7;
+ vls_hdr.subtype = 14;
+ vls_hdr.elem_size = 1;
+
+
+ for (i = 0; i < dict_get_var_cnt (dict); ++i)
+ {
+ const struct variable *v = dict_get_var (dict, i);
+
+ if ( v->width <= MAX_LONG_STRING )
+ continue;
+
+ ds_put_format (&vls_length_map, "%s=%05d", v->short_name, v->width);
+ ds_put_char (&vls_length_map, '\0');
+ ds_put_char (&vls_length_map, '\t');
+ }
+
+ vls_hdr.n_elem = ds_length (&vls_length_map);
+
+ if ( vls_hdr.n_elem > 0 )
+ {
+ buf_write (w, &vls_hdr, sizeof vls_hdr);
+ buf_write (w, ds_data (&vls_length_map), ds_length (&vls_length_map));
}
+
+ ds_destroy (&vls_length_map);
}
/* Writes the long variable name table */
{
struct
{
- int32_t rec_type P;
- int32_t subtype P;
- int32_t elem_size P;
- int32_t n_elem P;
- }
- lv_hdr;
+ int32_t rec_type ;
+ int32_t subtype ;
+ int32_t elem_size ;
+ int32_t n_elem ;
+ } ATTRIBUTE((packed)) lv_hdr;
struct string long_name_map;
size_t i;
- ds_init (&long_name_map, 10 * dict_get_var_cnt (dict));
+ ds_init_empty (&long_name_map);
for (i = 0; i < dict_get_var_cnt (dict); i++)
{
struct variable *v = dict_get_var (dict, i);
if (i)
- ds_putc (&long_name_map, '\t');
- ds_printf (&long_name_map, "%s=%s", v->short_name, v->name);
+ ds_put_char (&long_name_map, '\t');
+ ds_put_format (&long_name_map, "%s=%s", v->short_name, v->name);
}
lv_hdr.rec_type = 7;
{
struct
{
- int32_t rec_type_3 P;
- int32_t subtype_3 P;
- int32_t data_type_3 P;
- int32_t n_elem_3 P;
- int32_t elem_3[8] P;
- int32_t rec_type_4 P;
- int32_t subtype_4 P;
- int32_t data_type_4 P;
- int32_t n_elem_4 P;
- flt64 elem_4[3] P;
- }
- rec_7;
+ int32_t rec_type_3 ;
+ int32_t subtype_3 ;
+ int32_t data_type_3 ;
+ int32_t n_elem_3 ;
+ int32_t elem_3[8] ;
+ int32_t rec_type_4 ;
+ int32_t subtype_4 ;
+ int32_t data_type_4 ;
+ int32_t n_elem_4 ;
+ flt64 elem_4[3] ;
+ } ATTRIBUTE((packed)) rec_7;
/* Components of the version number, from major to minor. */
int version_component[3];
w->case_cnt++;
if (!w->needs_translation && !w->compress
- && sizeof (flt64) == sizeof (union value))
+ && sizeof (flt64) == sizeof (union value) && ! w->has_vls )
{
/* Fast path: external and internal representations are the
same and the dictionary is properly ordered. Write
Write into a bounce buffer, then write to W. */
flt64 *bounce;
flt64 *bounce_cur;
+ flt64 *bounce_end;
size_t bounce_size;
size_t i;
bounce_size = sizeof *bounce * w->flt64_cnt;
bounce = bounce_cur = local_alloc (bounce_size);
+ bounce_end = bounce + bounce_size;
for (i = 0; i < w->var_cnt; i++)
{
struct sfm_var *v = &w->vars[i];
+ memset(bounce_cur, ' ', v->flt64_cnt * sizeof (flt64));
+
if (v->width == 0)
- *bounce_cur = case_num (c, v->fv);
+ {
+ *bounce_cur = case_num (c, v->fv);
+ bounce_cur += v->flt64_cnt;
+ }
else
- memcpy (bounce_cur, case_data (c, v->fv)->s, v->width);
- bounce_cur += v->flt64_cnt;
+ { int ofs = 0;
+ while (ofs < v->width)
+ {
+ int chunk = MIN (MAX_LONG_STRING, v->width - ofs);
+ int nv = DIV_RND_UP (chunk, sizeof (flt64));
+ buf_copy_rpad ((char *) bounce_cur, nv * sizeof (flt64),
+ case_data (c, v->fv)->s + ofs, chunk);
+ bounce_cur += nv;
+ ofs += chunk;
+ }
+ }
+
}
if (!w->compress)
projects / pspp-builds.git / blobdiff