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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 "xbase.h"
#include <gnumeric.h>
#include <workbook-view.h>
#include <workbook.h>
#include <cell.h>
#include <value.h>
#include <sheet.h>
#include <ranges.h>
#include <mstyle.h>
#include <sheet-style.h>
#include <goffice/goffice.h>
#include <gsf/gsf-utils.h>
#include <gnm-plugin.h>
#include <glib/gi18n-lib.h>
#include <stdlib.h>
#include <string.h>
GNM_PLUGIN_MODULE_HEADER;
void xbase_file_open (GOFileOpener const *fo, GOIOContext *io_context,
WorkbookView *wb_view, GsfInput *input);
#define CHECK_LENGTH(_l) do { \
if (field->len != (_l)) { \
g_warning ("Invalid field length. File is probably corrupted."); \
g_free (s); \
return NULL; \
} \
} while (0)
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': {
char *sutf8 = g_convert_with_iconv (g_strchomp (s), -1,
file->char_map, NULL, NULL, NULL);
if (!sutf8) {
char *t;
for (t = s; *t; t++)
if ((guchar)*t >= 0x7f)
*t = '?';
sutf8 = s;
s = NULL;
g_warning ("Unrepresentable characters replaced by '?'");
}
if (sutf8)
val = value_new_string_nocopy (sutf8);
else
val = value_new_string ("???");
g_free (s);
return val;
}
case 'N':
val = value_new_float (gnm_strto (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 NULL;
default:
g_warning ("Invalid logical value. File is probably corrupted.");
g_free (s);
return NULL;
}
case 'D': {
/* double check that the date is stored according to spec */
int year, month, day;
if (strcmp (s, "00000000") == 0)
val = NULL;
else if (sscanf (s, "%4d%2d%2d", &year, &month, &day) == 3 &&
g_date_valid_dmy (day, month, year)) {
GDate *date = g_date_new_dmy (day, month, year);
/* Use default date convention */
val = value_new_int (go_date_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 (GSF_LE_GET_GINT32 (s));
g_free (s);
return val;
case 'F':
CHECK_LENGTH (sizeof (double));
val = value_new_float (GSF_LE_GET_DOUBLE (s));
g_free (s);
return val;
case 'B': {
gint64 tmp = GSF_LE_GET_GINT64 (s);
g_warning ("FIXME: \"BINARY\" field type doesn't work");
CHECK_LENGTH (sizeof (tmp));
g_free (s);
return value_new_float (tmp);
}
default: {
char *s = g_strdup_printf ("Field type '0x%02x' unsupported",
field->type);
return value_new_string_nocopy (s);
}
}
}
#undef CHECK_LENGTH
static void
create_header (Sheet *sheet, XBfile *file)
{
unsigned ui;
GnmRange r;
GnmStyle *bold = gnm_style_new ();
for (ui = 0 ; ui < file->fields ; ui++) {
GnmCell *cell = sheet_cell_fetch (sheet, ui, 0);
gnm_cell_set_text (cell, file->format[ui]->name);
}
gnm_style_set_font_bold (bold, TRUE);
range_init (&r, 0, 0, file->fields - 1, 0);
sheet_style_apply_range (sheet, &r, bold);
}
void
xbase_file_open (GOFileOpener const *fo, GOIOContext *io_context,
WorkbookView *wb_view, GsfInput *input)
{
Workbook *wb;
XBfile *file;
XBrecord *record;
Sheet *sheet = NULL;
GOErrorInfo *open_error;
int rows = GNM_MAX_ROWS;
int pass;
if ((file = xbase_open (input, &open_error)) == NULL) {
go_io_error_info_set (io_context, go_error_info_new_str_with_details (
_("Error while opening xbase file."),
open_error));
return;
}
rows = 0;
wb = wb_view_get_workbook (wb_view);
for (pass = 1; pass <= 2; pass++) {
int row = 0;
if (pass == 2) {
int cols = file->fields;
gnm_sheet_suggest_size (&cols, &rows);
sheet = workbook_sheet_add (wb, -1, cols, rows);
create_header (sheet, file);
}
record = record_new (file);
do {
unsigned ui;
gboolean deleted = record_deleted (record);
if (deleted)
continue;
if (row >= rows)
break;
row++;
if (pass == 1)
continue;
for (ui = 0; ui < file->fields; ui++) {
GnmCell *cell;
XBfield *field = record->file->format[ui];
GnmValue *val = xbase_field_as_value
(record_get_field (record, ui),
field, file);
if (!val)
continue;
cell = sheet_cell_fetch (sheet, ui, row);
value_set_fmt (val, field->fmt);
gnm_cell_set_value (cell, val);
}
} while (record_seek (record, SEEK_CUR, 1));
record_free (record);
rows = row;
}
xbase_close (file);
sheet_flag_recompute_spans (sheet);
}
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