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/* vim: set sw=8: -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */
/**
* boot.c: XBase support for Gnumeric
*
* Author:
* Sean Atkinson <sca20@cam.ac.uk>
**/
#include <gnumeric-config.h>
#include <glib/gi18n.h>
#include <gnumeric.h>
#include "xbase.h"
#include <workbook-view.h>
#include <workbook.h>
#include <cell.h>
#include <value.h>
#include <plugin.h>
#include <plugin-util.h>
#include <module-plugin-defs.h>
#include <sheet.h>
#include <datetime.h>
#include <ranges.h>
#include <mstyle.h>
#include <sheet-style.h>
#include <io-context.h>
#include <stdlib.h>
GNUMERIC_MODULE_PLUGIN_INFO_DECL;
void xbase_file_open (GnmFileOpener const *fo, IOContext *io_context,
WorkbookView *wb_view, GsfInput *input);
#if G_BYTE_ORDER == G_LITTLE_ENDIAN
# define XB_GETDOUBLE(p) (*((double*)(p)))
#if 0
# define XB_SETDOUBLE(p,q) (*((double*)(p))=(q))
#endif
#else
# define XB_GETDOUBLE(p) (xb_getdouble(p))
#if 0
# define XB_SETDOUBLE(p,q) (xb_setdouble(p,q))
#endif
static double
xb_getdouble (guint8 const *p)
{
double d;
int i;
guint8 *t = (guint8 *)&d;
int sd = sizeof (d);
for (i = 0; i < sd; i++)
t[i] = p[sd - 1 - i];
return d;
}
#if 0
static void
xb_setdouble (guint8 *p, double d)
{
int i;
guint8 *t = (guint8 *)&d;
int sd = sizeof (d);
for (i = 0; i < sd; i++)
p[sd - 1 - i] = t[i];
}
#endif
#endif
static GnmValue *
xbase_field_as_value (gchar *content, XBfield *field, XBfile *file)
{
gchar *s = g_strndup (content, field->len);
GnmValue *val;
switch (field->type) {
case 'C': {
if (file->char_map != (GIConv)-1)
val = value_new_string_nocopy (
g_convert_with_iconv (g_strchomp (s), -1,
file->char_map, NULL, NULL, NULL));
else
val = value_new_string_nocopy (g_strchomp (s));
return val;
}
case 'N':
val = value_new_float (strtognum (s, NULL));
g_free (s);
return val;
case 'L':
switch (s[0]) {
case 'Y': case 'y': case 'T': case 't':
g_free (s);
return value_new_bool (TRUE);
case 'N': case 'n': case 'F': case 'f':
g_free (s);
return value_new_bool (FALSE);
case '?': case ' ':
g_free (s);
return value_new_string ("Uninitialised boolean");
default: {
char str[20];
snprintf (str, 20, "Invalid logical '%c'", s[0]);
g_free (s);
return value_new_string (str);
}
}
case 'D': {
/* double check that the date is stored according to spec */
int year, month, day;
if (sscanf (s, "%4d%2d%2d", &year, &month, &day) == 3) {
GDate *date = g_date_new_dmy (day, month, year);
/* Use default date convention */
val = value_new_int (datetime_g_to_serial (date, NULL));
g_date_free (date);
} else
val = value_new_string (s);
g_free (s);
return val;
}
case 'I':
val = value_new_int (GINT32_FROM_LE (*(gint32 *)s));
g_free (s);
return val;
case 'F':
g_assert (sizeof (double) == field->len);
val = value_new_float (XB_GETDOUBLE (s));
g_free (s);
return val;
case 'B': {
gint64 tmp = GINT32_FROM_LE (*(gint64 *)s);
g_free (s);
g_warning ("FIXME: \"BINARY\" field type doesn't work");
g_assert (sizeof(tmp) == field->len);
return value_new_int (tmp);
}
default: {
char str[27];
snprintf (str, 27, "Field type '%c' unsupported",
field->type);
g_free (s);
return value_new_string (str);
}
}
}
void
xbase_file_open (GnmFileOpener const *fo, IOContext *io_context,
WorkbookView *wb_view, GsfInput *input)
{
Workbook *wb;
XBfile *file;
XBrecord *record;
char *name;
Sheet *sheet = NULL;
GnmCell *cell;
GnmValue *val;
XBfield *field;
ErrorInfo *open_error;
guint row, i;
if ((file = xbase_open (input, &open_error)) == NULL) {
gnumeric_io_error_info_set (io_context, error_info_new_str_with_details (
_("Error while opening xbase file."),
open_error));
return;
}
wb = wb_view_workbook (wb_view);
name = workbook_sheet_get_free_name (wb, _("Sheet"), FALSE, TRUE);
sheet = sheet_new (wb, name);
g_free (name);
workbook_sheet_attach (wb, sheet, NULL);
i = 0;
for (i = 0 ; i < file->fields ; i++) {
cell = sheet_cell_fetch (sheet, i, 0);
cell_set_text (cell, file->format [i]->name);
}
{
GnmRange r;
GnmStyle *bold = mstyle_new ();
mstyle_set_font_bold (bold, TRUE);
sheet_style_apply_range (sheet,
range_init (&r, 0, 0, file->fields-1, 0), bold);
}
record = record_new (file);
row = 1;
do {
if (row >= SHEET_MAX_ROWS) {
g_warning (_("This build of Gnumeric can only hold %d "
"rows. Ignoring the rest of this file. You "
"will need a custom build with SHEET_MAX_ROWS "
"increased to read this file."),
SHEET_MAX_ROWS);
break;
}
for (i = 0; i < file->fields ; i++) {
field = record->file->format [i];
val = xbase_field_as_value (
record_get_field (record, i), field, file);
cell = sheet_cell_fetch (sheet, i, row);
value_set_fmt (val, field->fmt);
cell_set_value (cell, val);
}
row++;
} while (record_seek (record, SEEK_CUR, 1));
record_free (record);
xbase_close (file);
sheet_flag_recompute_spans (sheet);
}
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