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>
34 spreadsheet_destroy (struct spreadsheet *s)
41 case SPREADSHEET_GNUMERIC:
52 spreadsheet_make_reader (struct spreadsheet *s, const struct spreadsheet_read_options *opts)
54 if ( s->type == SPREADSHEET_ODS)
55 return ods_make_reader (s, opts);
56 if ( s->type == SPREADSHEET_GNUMERIC)
57 return gnumeric_make_reader (s, opts);
63 spreadsheet_get_sheet_name (struct spreadsheet *s, int n)
65 if ( s->type == SPREADSHEET_ODS)
66 return ods_get_sheet_name (s, n);
68 if ( s->type == SPREADSHEET_GNUMERIC)
69 return gnumeric_get_sheet_name (s, n);
75 spreadsheet_get_sheet_range (struct spreadsheet *s, int n)
77 if ( s->type == SPREADSHEET_ODS)
78 return ods_get_sheet_range (s, n);
80 if ( s->type == SPREADSHEET_GNUMERIC)
81 return gnumeric_get_sheet_range (s, n);
90 reverse (char *s, int len)
93 for (i = 0; i < len / 2; ++i)
95 char tmp = s[len - i - 1];
102 /* Convert a string, which is an integer encoded in base26
103 IE, A=0, B=1, ... Z=25 to the integer it represents.
104 ... except that in this scheme, digits with an exponent
105 greater than 1 are implicitly incremented by 1, so
106 AA = 0 + 1*26, AB = 1 + 1*26,
107 ABC = 2 + 2*26 + 1*26^2 ....
110 ps26_to_int (const char *str)
115 int len = strlen (str);
117 for (i = len - 1 ; i >= 0; --i)
119 int mantissa = (str[i] - 'A');
121 assert (mantissa >= 0);
122 assert (mantissa < RADIX);
127 result += mantissa * multiplier;
140 long long int base = RADIX;
145 while (i > lower + base - 1)
156 ret = xmalloc (exp + 1);
161 ret[exp++] = (i % RADIX) + 'A';
173 create_cell_ref (int col0, int row0, int coli, int rowi)
179 if ( col0 < 0) return NULL;
180 if ( rowi < 0) return NULL;
181 if ( coli < 0) return NULL;
182 if ( row0 < 0) return NULL;
184 cs0 = int_to_ps26 (col0);
185 csi = int_to_ps26 (coli);
186 s = c_xasprintf ("%s%d:%s%d",
196 /* Convert a cell reference in the form "A1:B2", to
197 integers. A1 means column zero, row zero.
198 B1 means column 1 row 0. AA1 means column 26, row 0.
201 convert_cell_ref (const char *ref,
202 int *col0, int *row0,
203 int *coli, int *rowi)
211 int n = sscanf (ref, "%4[a-zA-Z]%d:%4[a-zA-Z]%d",
217 str_uppercase (startcol);
218 *col0 = ps26_to_int (startcol);
219 str_uppercase (stopcol);
220 *coli = ps26_to_int (stopcol);
221 *row0 = startrow - 1;
222 *rowi = stoprow - 1 ;