1 /* PSPP - a program for statistical analysis.
2 Copyright (C) 2007, 2009, 2010, 2011, 2013 Free Software Foundation, Inc.
4 This program is free software: you can redistribute it and/or modify
5 it under the terms of the GNU General Public License as published by
6 the Free Software Foundation, either version 3 of the License, or
7 (at your option) any later version.
9 This program is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 GNU General Public License for more details.
14 You should have received a copy of the GNU General Public License
15 along with this program. If not, see <http://www.gnu.org/licenses/>. */
19 #include "spreadsheet-reader.h"
21 #include <libpspp/assertion.h>
22 #include "gnumeric-reader.h"
23 #include "ods-reader.h"
25 #include <libpspp/str.h>
28 #include <gl/xalloc.h>
29 #include <gl/c-xvasprintf.h>
33 spreadsheet_ref (struct spreadsheet *s)
39 spreadsheet_unref (struct spreadsheet *s)
47 case SPREADSHEET_GNUMERIC:
58 spreadsheet_make_reader (struct spreadsheet *s,
59 const struct spreadsheet_read_options *opts)
61 if ( s->type == SPREADSHEET_ODS)
62 return ods_make_reader (s, opts);
64 if ( s->type == SPREADSHEET_GNUMERIC)
65 return gnumeric_make_reader (s, opts);
71 spreadsheet_get_sheet_name (struct spreadsheet *s, int n)
73 if ( s->type == SPREADSHEET_ODS)
74 return ods_get_sheet_name (s, n);
76 if ( s->type == SPREADSHEET_GNUMERIC)
77 return gnumeric_get_sheet_name (s, n);
84 spreadsheet_get_sheet_range (struct spreadsheet *s, int n)
86 if ( s->type == SPREADSHEET_ODS)
87 return ods_get_sheet_range (s, n);
89 if ( s->type == SPREADSHEET_GNUMERIC)
90 return gnumeric_get_sheet_range (s, n);
99 reverse (char *s, int len)
102 for (i = 0; i < len / 2; ++i)
104 char tmp = s[len - i - 1];
105 s[len - i -1] = s[i];
111 /* Convert a string, which is an integer encoded in base26
112 IE, A=0, B=1, ... Z=25 to the integer it represents.
113 ... except that in this scheme, digits with an exponent
114 greater than 1 are implicitly incremented by 1, so
115 AA = 0 + 1*26, AB = 1 + 1*26,
116 ABC = 2 + 2*26 + 1*26^2 ....
119 ps26_to_int (const char *str)
124 int len = strlen (str);
126 for (i = len - 1 ; i >= 0; --i)
128 int mantissa = (str[i] - 'A');
130 assert (mantissa >= 0);
131 assert (mantissa < RADIX);
136 result += mantissa * multiplier;
149 long long int base = RADIX;
154 while (i > lower + base - 1)
165 ret = xmalloc (exp + 1);
170 ret[exp++] = (i % RADIX) + 'A';
183 create_cell_ref (int col0, int row0)
188 if ( col0 < 0) return NULL;
189 if ( row0 < 0) return NULL;
191 cs0 = int_to_ps26 (col0);
192 s = c_xasprintf ("%s%d", cs0, row0 + 1);
200 create_cell_range (int col0, int row0, int coli, int rowi)
202 char *s0 = create_cell_ref (col0, row0);
203 char *si = create_cell_ref (coli, rowi);
205 char *s = c_xasprintf ("%s:%s", s0, si);
214 /* Convert a cell reference in the form "A1:B2", to
215 integers. A1 means column zero, row zero.
216 B1 means column 1 row 0. AA1 means column 26, row 0.
219 convert_cell_ref (const char *ref,
220 int *col0, int *row0,
221 int *coli, int *rowi)
229 int n = sscanf (ref, "%4[a-zA-Z]%d:%4[a-zA-Z]%d",
235 str_uppercase (startcol);
236 *col0 = ps26_to_int (startcol);
237 str_uppercase (stopcol);
238 *coli = ps26_to_int (stopcol);
239 *row0 = startrow - 1;
240 *rowi = stoprow - 1 ;