source: heimdal/vendor/current/lib/roken/rtbl.c

Last change on this file was 1, checked in by Paul Smedley, 10 years ago

Initial commit of Heimdal 1.5.3
File size: 12.1 KB
Line 
1/*
2 * Copyright (c) 2000, 2002, 2004 Kungliga Tekniska Högskolan
3 * (Royal Institute of Technology, Stockholm, Sweden).
4 * All rights reserved.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
8 * are met:
9 *
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 *
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
16 *
17 * 3. Neither the name of the Institute nor the names of its contributors
18 * may be used to endorse or promote products derived from this software
19 * without specific prior written permission.
20 *
21 * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24 * ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31 * SUCH DAMAGE.
32 */
33
34#include <config.h>
35
36#include "roken.h"
37#include "rtbl.h"
38
39struct column_entry {
40 char *data;
41};
42
43struct column_data {
44 char *header;
45 char *prefix;
46 int width;
47 unsigned flags;
48 size_t num_rows;
49 struct column_entry *rows;
50 unsigned int column_id;
51 char *suffix;
52};
53
54struct rtbl_data {
55 char *column_prefix;
56 size_t num_columns;
57 struct column_data **columns;
58 unsigned int flags;
59 char *column_separator;
60};
61
62ROKEN_LIB_FUNCTION rtbl_t ROKEN_LIB_CALL
63rtbl_create (void)
64{
65 return calloc (1, sizeof (struct rtbl_data));
66}
67
68ROKEN_LIB_FUNCTION void ROKEN_LIB_CALL
69rtbl_set_flags (rtbl_t table, unsigned int flags)
70{
71 table->flags = flags;
72}
73
74ROKEN_LIB_FUNCTION unsigned int ROKEN_LIB_CALL
75rtbl_get_flags (rtbl_t table)
76{
77 return table->flags;
78}
79
80static struct column_data *
81rtbl_get_column_by_id (rtbl_t table, unsigned int id)
82{
83 size_t i;
84 for(i = 0; i < table->num_columns; i++)
85 if(table->columns[i]->column_id == id)
86 return table->columns[i];
87 return NULL;
88}
89
90static struct column_data *
91rtbl_get_column (rtbl_t table, const char *column)
92{
93 size_t i;
94 for(i = 0; i < table->num_columns; i++)
95 if(strcmp(table->columns[i]->header, column) == 0)
96 return table->columns[i];
97 return NULL;
98}
99
100ROKEN_LIB_FUNCTION void ROKEN_LIB_CALL
101rtbl_destroy (rtbl_t table)
102{
103 size_t i, j;
104
105 for (i = 0; i < table->num_columns; i++) {
106 struct column_data *c = table->columns[i];
107
108 for (j = 0; j < c->num_rows; j++)
109 free (c->rows[j].data);
110 free (c->rows);
111 free (c->header);
112 free (c->prefix);
113 free (c->suffix);
114 free (c);
115 }
116 free (table->column_prefix);
117 free (table->column_separator);
118 free (table->columns);
119 free (table);
120}
121
122ROKEN_LIB_FUNCTION int ROKEN_LIB_CALL
123rtbl_add_column_by_id (rtbl_t table, unsigned int id,
124 const char *header, unsigned int flags)
125{
126 struct column_data *col, **tmp;
127
128 tmp = realloc (table->columns, (table->num_columns + 1) * sizeof (*tmp));
129 if (tmp == NULL)
130 return ENOMEM;
131 table->columns = tmp;
132 col = malloc (sizeof (*col));
133 if (col == NULL)
134 return ENOMEM;
135 col->header = strdup (header);
136 if (col->header == NULL) {
137 free (col);
138 return ENOMEM;
139 }
140 col->prefix = NULL;
141 col->width = 0;
142 col->flags = flags;
143 col->num_rows = 0;
144 col->rows = NULL;
145 col->column_id = id;
146 col->suffix = NULL;
147 table->columns[table->num_columns++] = col;
148 return 0;
149}
150
151ROKEN_LIB_FUNCTION int ROKEN_LIB_CALL
152rtbl_add_column (rtbl_t table, const char *header, unsigned int flags)
153{
154 return rtbl_add_column_by_id(table, 0, header, flags);
155}
156
157ROKEN_LIB_FUNCTION int ROKEN_LIB_CALL
158rtbl_new_row(rtbl_t table)
159{
160 size_t max_rows = 0;
161 size_t c;
162 for (c = 0; c < table->num_columns; c++)
163 if(table->columns[c]->num_rows > max_rows)
164 max_rows = table->columns[c]->num_rows;
165 for (c = 0; c < table->num_columns; c++) {
166 struct column_entry *tmp;
167
168 if(table->columns[c]->num_rows == max_rows)
169 continue;
170 tmp = realloc(table->columns[c]->rows,
171 max_rows * sizeof(table->columns[c]->rows));
172 if(tmp == NULL)
173 return ENOMEM;
174 table->columns[c]->rows = tmp;
175 while(table->columns[c]->num_rows < max_rows) {
176 if((tmp[table->columns[c]->num_rows++].data = strdup("")) == NULL)
177 return ENOMEM;
178 }
179 }
180 return 0;
181}
182
183static void
184column_compute_width (rtbl_t table, struct column_data *column)
185{
186 size_t i;
187
188 if(table->flags & RTBL_HEADER_STYLE_NONE)
189 column->width = 0;
190 else
191 column->width = strlen (column->header);
192 for (i = 0; i < column->num_rows; i++)
193 column->width = max (column->width, (int) strlen (column->rows[i].data));
194}
195
196/* DEPRECATED */
197ROKEN_LIB_FUNCTION int ROKEN_LIB_CALL
198rtbl_set_prefix (rtbl_t table, const char *prefix)
199{
200 if (table->column_prefix)
201 free (table->column_prefix);
202 table->column_prefix = strdup (prefix);
203 if (table->column_prefix == NULL)
204 return ENOMEM;
205 return 0;
206}
207
208ROKEN_LIB_FUNCTION int ROKEN_LIB_CALL
209rtbl_set_separator (rtbl_t table, const char *separator)
210{
211 if (table->column_separator)
212 free (table->column_separator);
213 table->column_separator = strdup (separator);
214 if (table->column_separator == NULL)
215 return ENOMEM;
216 return 0;
217}
218
219ROKEN_LIB_FUNCTION int ROKEN_LIB_CALL
220rtbl_set_column_prefix (rtbl_t table, const char *column,
221 const char *prefix)
222{
223 struct column_data *c = rtbl_get_column (table, column);
224
225 if (c == NULL)
226 return -1;
227 if (c->prefix)
228 free (c->prefix);
229 c->prefix = strdup (prefix);
230 if (c->prefix == NULL)
231 return ENOMEM;
232 return 0;
233}
234
235ROKEN_LIB_FUNCTION int ROKEN_LIB_CALL
236rtbl_set_column_affix_by_id(rtbl_t table, unsigned int id,
237 const char *prefix, const char *suffix)
238{
239 struct column_data *c = rtbl_get_column_by_id (table, id);
240
241 if (c == NULL)
242 return -1;
243 if (c->prefix)
244 free (c->prefix);
245 if(prefix == NULL)
246 c->prefix = NULL;
247 else {
248 c->prefix = strdup (prefix);
249 if (c->prefix == NULL)
250 return ENOMEM;
251 }
252
253 if (c->suffix)
254 free (c->suffix);
255 if(suffix == NULL)
256 c->suffix = NULL;
257 else {
258 c->suffix = strdup (suffix);
259 if (c->suffix == NULL)
260 return ENOMEM;
261 }
262 return 0;
263}
264
265
266static const char *
267get_column_prefix (rtbl_t table, struct column_data *c)
268{
269 if (c == NULL)
270 return "";
271 if (c->prefix)
272 return c->prefix;
273 if (table->column_prefix)
274 return table->column_prefix;
275 return "";
276}
277
278static const char *
279get_column_suffix (rtbl_t table, struct column_data *c)
280{
281 if (c && c->suffix)
282 return c->suffix;
283 return "";
284}
285
286static int
287add_column_entry (struct column_data *c, const char *data)
288{
289 struct column_entry row, *tmp;
290
291 row.data = strdup (data);
292 if (row.data == NULL)
293 return ENOMEM;
294 tmp = realloc (c->rows, (c->num_rows + 1) * sizeof (*tmp));
295 if (tmp == NULL) {
296 free (row.data);
297 return ENOMEM;
298 }
299 c->rows = tmp;
300 c->rows[c->num_rows++] = row;
301 return 0;
302}
303
304ROKEN_LIB_FUNCTION int ROKEN_LIB_CALL
305rtbl_add_column_entry_by_id (rtbl_t table, unsigned int id, const char *data)
306{
307 struct column_data *c = rtbl_get_column_by_id (table, id);
308
309 if (c == NULL)
310 return -1;
311
312 return add_column_entry(c, data);
313}
314
315ROKEN_LIB_FUNCTION int ROKEN_LIB_CALL
316rtbl_add_column_entryv_by_id (rtbl_t table, unsigned int id,
317 const char *fmt, ...)
318{
319 va_list ap;
320 char *str;
321 int ret;
322
323 va_start(ap, fmt);
324 ret = vasprintf(&str, fmt, ap);
325 va_end(ap);
326 if (ret == -1)
327 return -1;
328 ret = rtbl_add_column_entry_by_id(table, id, str);
329 free(str);
330 return ret;
331}
332
333ROKEN_LIB_FUNCTION int ROKEN_LIB_CALL
334rtbl_add_column_entry (rtbl_t table, const char *column, const char *data)
335{
336 struct column_data *c = rtbl_get_column (table, column);
337
338 if (c == NULL)
339 return -1;
340
341 return add_column_entry(c, data);
342}
343
344ROKEN_LIB_FUNCTION int ROKEN_LIB_CALL
345rtbl_add_column_entryv (rtbl_t table, const char *column, const char *fmt, ...)
346{
347 va_list ap;
348 char *str;
349 int ret;
350
351 va_start(ap, fmt);
352 ret = vasprintf(&str, fmt, ap);
353 va_end(ap);
354 if (ret == -1)
355 return -1;
356 ret = rtbl_add_column_entry(table, column, str);
357 free(str);
358 return ret;
359}
360
361
362ROKEN_LIB_FUNCTION int ROKEN_LIB_CALL
363rtbl_format (rtbl_t table, FILE * f)
364{
365 size_t i, j;
366
367 for (i = 0; i < table->num_columns; i++)
368 column_compute_width (table, table->columns[i]);
369 if((table->flags & RTBL_HEADER_STYLE_NONE) == 0) {
370 for (i = 0; i < table->num_columns; i++) {
371 struct column_data *c = table->columns[i];
372
373 if(table->column_separator != NULL && i > 0)
374 fprintf (f, "%s", table->column_separator);
375 fprintf (f, "%s", get_column_prefix (table, c));
376 if(i == table->num_columns - 1 && c->suffix == NULL)
377 /* last column, so no need to pad with spaces */
378 fprintf (f, "%-*s", 0, c->header);
379 else
380 fprintf (f, "%-*s", (int)c->width, c->header);
381 fprintf (f, "%s", get_column_suffix (table, c));
382 }
383 fprintf (f, "\n");
384 }
385
386 for (j = 0;; j++) {
387 int flag = 0;
388
389 /* are there any more rows left? */
390 for (i = 0; flag == 0 && i < table->num_columns; ++i) {
391 struct column_data *c = table->columns[i];
392
393 if (c->num_rows > j) {
394 ++flag;
395 break;
396 }
397 }
398 if (flag == 0)
399 break;
400
401 for (i = 0; i < table->num_columns; i++) {
402 int w;
403 struct column_data *c = table->columns[i];
404
405 if(table->column_separator != NULL && i > 0)
406 fprintf (f, "%s", table->column_separator);
407
408 w = c->width;
409
410 if ((c->flags & RTBL_ALIGN_RIGHT) == 0) {
411 if(i == table->num_columns - 1 && c->suffix == NULL)
412 /* last column, so no need to pad with spaces */
413 w = 0;
414 else
415 w = -w;
416 }
417 fprintf (f, "%s", get_column_prefix (table, c));
418 if (c->num_rows <= j)
419 fprintf (f, "%*s", w, "");
420 else
421 fprintf (f, "%*s", w, c->rows[j].data);
422 fprintf (f, "%s", get_column_suffix (table, c));
423 }
424 fprintf (f, "\n");
425 }
426 return 0;
427}
428
429#ifdef TEST
430int
431main (int argc, char **argv)
432{
433 rtbl_t table;
434
435 table = rtbl_create ();
436 rtbl_add_column_by_id (table, 0, "Issued", 0);
437 rtbl_add_column_by_id (table, 1, "Expires", 0);
438 rtbl_add_column_by_id (table, 2, "Foo", RTBL_ALIGN_RIGHT);
439 rtbl_add_column_by_id (table, 3, "Principal", 0);
440
441 rtbl_add_column_entry_by_id (table, 0, "Jul 7 21:19:29");
442 rtbl_add_column_entry_by_id (table, 1, "Jul 8 07:19:29");
443 rtbl_add_column_entry_by_id (table, 2, "73");
444 rtbl_add_column_entry_by_id (table, 2, "0");
445 rtbl_add_column_entry_by_id (table, 2, "-2000");
446 rtbl_add_column_entry_by_id (table, 3, "krbtgt/NADA.KTH.SE@NADA.KTH.SE");
447
448 rtbl_add_column_entry_by_id (table, 0, "Jul 7 21:19:29");
449 rtbl_add_column_entry_by_id (table, 1, "Jul 8 07:19:29");
450 rtbl_add_column_entry_by_id (table, 3, "afs/pdc.kth.se@NADA.KTH.SE");
451
452 rtbl_add_column_entry_by_id (table, 0, "Jul 7 21:19:29");
453 rtbl_add_column_entry_by_id (table, 1, "Jul 8 07:19:29");
454 rtbl_add_column_entry_by_id (table, 3, "afs@NADA.KTH.SE");
455
456 rtbl_set_separator (table, " ");
457
458 rtbl_format (table, stdout);
459
460 rtbl_destroy (table);
461
462 printf("\n");
463
464 table = rtbl_create ();
465 rtbl_add_column_by_id (table, 0, "Column A", 0);
466 rtbl_set_column_affix_by_id (table, 0, "<", ">");
467 rtbl_add_column_by_id (table, 1, "Column B", 0);
468 rtbl_set_column_affix_by_id (table, 1, "[", "]");
469 rtbl_add_column_by_id (table, 2, "Column C", 0);
470 rtbl_set_column_affix_by_id (table, 2, "(", ")");
471
472 rtbl_add_column_entry_by_id (table, 0, "1");
473 rtbl_new_row(table);
474 rtbl_add_column_entry_by_id (table, 1, "2");
475 rtbl_new_row(table);
476 rtbl_add_column_entry_by_id (table, 2, "3");
477 rtbl_new_row(table);
478
479 rtbl_set_separator (table, " ");
480 rtbl_format (table, stdout);
481
482 rtbl_destroy (table);
483
484 return 0;
485}
486
487#endif
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