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>
32 #ifdef ODF_READ_SUPPORT
33 const bool ODF_READING_SUPPORTED = true;
35 const bool ODF_READING_SUPPORTED = false;
38 #ifdef GNM_READ_SUPPORT
39 const bool GNM_READING_SUPPORTED = true;
41 const bool GNM_READING_SUPPORTED = false;
45 spreadsheet_destroy (struct spreadsheet *s)
50 assert (ODF_READING_SUPPORTED);
54 case SPREADSHEET_GNUMERIC:
55 assert (GNM_READING_SUPPORTED);
66 spreadsheet_make_reader (struct spreadsheet *s,
67 const struct spreadsheet_read_options *opts)
69 if (ODF_READING_SUPPORTED)
70 if ( s->type == SPREADSHEET_ODS)
71 return ods_make_reader (s, opts);
73 if (GNM_READING_SUPPORTED)
74 if ( s->type == SPREADSHEET_GNUMERIC)
75 return gnumeric_make_reader (s, opts);
81 spreadsheet_get_sheet_name (struct spreadsheet *s, int n)
83 if (ODF_READING_SUPPORTED)
84 if ( s->type == SPREADSHEET_ODS)
85 return ods_get_sheet_name (s, n);
87 if (GNM_READING_SUPPORTED)
88 if ( s->type == SPREADSHEET_GNUMERIC)
89 return gnumeric_get_sheet_name (s, n);
96 spreadsheet_get_sheet_range (struct spreadsheet *s, int n)
98 if (ODF_READING_SUPPORTED)
99 if ( s->type == SPREADSHEET_ODS)
100 return ods_get_sheet_range (s, n);
102 if (GNM_READING_SUPPORTED)
103 if ( s->type == SPREADSHEET_GNUMERIC)
104 return gnumeric_get_sheet_range (s, n);
113 reverse (char *s, int len)
116 for (i = 0; i < len / 2; ++i)
118 char tmp = s[len - i - 1];
119 s[len - i -1] = s[i];
125 /* Convert a string, which is an integer encoded in base26
126 IE, A=0, B=1, ... Z=25 to the integer it represents.
127 ... except that in this scheme, digits with an exponent
128 greater than 1 are implicitly incremented by 1, so
129 AA = 0 + 1*26, AB = 1 + 1*26,
130 ABC = 2 + 2*26 + 1*26^2 ....
133 ps26_to_int (const char *str)
138 int len = strlen (str);
140 for (i = len - 1 ; i >= 0; --i)
142 int mantissa = (str[i] - 'A');
144 assert (mantissa >= 0);
145 assert (mantissa < RADIX);
150 result += mantissa * multiplier;
163 long long int base = RADIX;
168 while (i > lower + base - 1)
179 ret = xmalloc (exp + 1);
184 ret[exp++] = (i % RADIX) + 'A';
197 create_cell_ref (int col0, int row0)
202 if ( col0 < 0) return NULL;
203 if ( row0 < 0) return NULL;
205 cs0 = int_to_ps26 (col0);
206 s = c_xasprintf ("%s%d", cs0, row0 + 1);
214 create_cell_range (int col0, int row0, int coli, int rowi)
216 char *s0 = create_cell_ref (col0, row0);
217 char *si = create_cell_ref (coli, rowi);
219 char *s = c_xasprintf ("%s:%s", s0, si);
228 /* Convert a cell reference in the form "A1:B2", to
229 integers. A1 means column zero, row zero.
230 B1 means column 1 row 0. AA1 means column 26, row 0.
233 convert_cell_ref (const char *ref,
234 int *col0, int *row0,
235 int *coli, int *rowi)
243 int n = sscanf (ref, "%4[a-zA-Z]%d:%4[a-zA-Z]%d",
249 str_uppercase (startcol);
250 *col0 = ps26_to_int (startcol);
251 str_uppercase (stopcol);
252 *coli = ps26_to_int (stopcol);
253 *row0 = startrow - 1;
254 *rowi = stoprow - 1 ;