/* PSPP - a program for statistical analysis.
- Copyright (C) 2007, 2009, 2010, 2011, 2013 Free Software Foundation, Inc.
+ Copyright (C) 2007, 2009, 2010, 2011, 2013, 2020 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 <gl/c-xvasprintf.h>
#include <stdlib.h>
+struct spreadsheet *
+spreadsheet_ref (struct spreadsheet *s)
+{
+ s->ref_cnt++;
+ return s;
+}
-void
-spreadsheet_destroy (struct spreadsheet *s)
+void
+spreadsheet_unref (struct spreadsheet *s)
{
- switch (s->type)
- {
- case SPREADSHEET_ODS:
- ods_destroy (s);
- break;
- case SPREADSHEET_GNUMERIC:
- gnumeric_destroy (s);
- break;
- default:
- NOT_REACHED ();
- break;
- }
+ if (--s->ref_cnt == 0)
+ s->destroy (s);
}
-struct casereader *
-spreadsheet_make_reader (struct spreadsheet *s, const struct spreadsheet_read_options *opts)
+struct casereader *
+spreadsheet_make_reader (struct spreadsheet *s,
+ const struct spreadsheet_read_options *opts)
{
- if ( s->type == SPREADSHEET_ODS)
- return ods_make_reader (s, opts);
- if ( s->type == SPREADSHEET_GNUMERIC)
- return gnumeric_make_reader (s, opts);
-
- return NULL;
+ return s->make_reader (s, opts);
}
-const char *
+const char *
spreadsheet_get_sheet_name (struct spreadsheet *s, int n)
{
- if ( s->type == SPREADSHEET_ODS)
- return ods_get_sheet_name (s, n);
+ return s->get_sheet_name (s, n);
+}
- if ( s->type == SPREADSHEET_GNUMERIC)
- return gnumeric_get_sheet_name (s, n);
- return NULL;
+char *
+spreadsheet_get_sheet_range (struct spreadsheet *s, int n)
+{
+ return s->get_sheet_range (s, n);
}
-char *
-spreadsheet_get_sheet_range (struct spreadsheet *s, int n)
+int
+spreadsheet_get_sheet_n_sheets (struct spreadsheet *s)
{
- if ( s->type == SPREADSHEET_ODS)
- return ods_get_sheet_range (s, n);
+ return s->get_sheet_n_sheets (s);
+}
+
+unsigned int
+spreadsheet_get_sheet_n_rows (struct spreadsheet *s, int n)
+{
+ return s->get_sheet_n_rows (s, n);
+}
- if ( s->type == SPREADSHEET_GNUMERIC)
- return gnumeric_get_sheet_range (s, n);
+unsigned int
+spreadsheet_get_sheet_n_columns (struct spreadsheet *s, int n)
+{
+ return s->get_sheet_n_columns (s, n);
+}
- return NULL;
+char *
+spreadsheet_get_cell (struct spreadsheet *s, int n, int row, int column)
+{
+ return s->get_sheet_cell (s, n, row, column);
}
greater than 1 are implicitly incremented by 1, so
AA = 0 + 1*26, AB = 1 + 1*26,
ABC = 2 + 2*26 + 1*26^2 ....
+ On error, this function returns -1
*/
int
ps26_to_int (const char *str)
for (i = len - 1 ; i >= 0; --i)
{
- int mantissa = (str[i] - 'A');
+ char c = str[i];
+ if (c < 'A' || c > 'Z')
+ return -1;
+ int mantissa = (c - 'A');
assert (mantissa >= 0);
assert (mantissa < RADIX);
return result;
}
+/* Convert an integer, which must be non-negative,
+ to pseudo base 26.
+ The caller must free the return value when no longer required. */
char *
int_to_ps26 (int i)
{
long long int base = RADIX;
int exp = 1;
- assert (i >= 0);
+ if (i < 0)
+ return NULL;
while (i > lower + base - 1)
{
lower += base;
- base *= RADIX;
+ base *= RADIX;
assert (base > 0);
exp++;
}
char *cs0 ;
char *s ;
- if ( col0 < 0) return NULL;
- if ( row0 < 0) return NULL;
+ if (col0 < 0) return NULL;
+ if (row0 < 0) return NULL;
- cs0 = int_to_ps26 (col0);
+ cs0 = int_to_ps26 (col0);
s = c_xasprintf ("%s%d", cs0, row0 + 1);
free (cs0);
int n = sscanf (ref, "%4[a-zA-Z]%d:%4[a-zA-Z]%d",
startcol, &startrow,
stopcol, &stoprow);
- if ( n != 4)
+ if (n != 4)
return false;
str_uppercase (startcol);
return true;
}
-