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annotate lwlib/lw_strbuf.c @ 308:670ea8f90212 ccdev
Converted preproc logic to library and moved some utility stuff to lwlib
The strbuf and strpool stuff is generally useful so move it to lwlib where
other such things live.
Also, package the preprocessor logic into a library for easy use in multiple
places.
| author | William Astle <lost@l-w.ca> |
|---|---|
| date | Sat, 21 Sep 2013 13:33:54 -0600 |
| parents | lwcc/strbuf.c@4b17780f2777 |
| children |
| rev | line source |
|---|---|
| 295 | 1 /* |
|
308
670ea8f90212
Converted preproc logic to library and moved some utility stuff to lwlib
William Astle <lost@l-w.ca>
parents:
295
diff
changeset
|
2 lwlib/lw_strbuf.c |
| 295 | 3 |
| 4 Copyright © 2013 William Astle | |
| 5 | |
| 6 This file is part of LWTOOLS. | |
| 7 | |
| 8 LWTOOLS is free software: you can redistribute it and/or modify it under the | |
| 9 terms of the GNU General Public License as published by the Free Software | |
| 10 Foundation, either version 3 of the License, or (at your option) any later | |
| 11 version. | |
| 12 | |
| 13 This program is distributed in the hope that it will be useful, but WITHOUT | |
| 14 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 15 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for | |
| 16 more details. | |
| 17 | |
| 18 You should have received a copy of the GNU General Public License along with | |
| 19 this program. If not, see <http://www.gnu.org/licenses/>. | |
| 20 */ | |
| 21 | |
| 22 #include <stdlib.h> | |
| 23 | |
|
308
670ea8f90212
Converted preproc logic to library and moved some utility stuff to lwlib
William Astle <lost@l-w.ca>
parents:
295
diff
changeset
|
24 #include "lw_alloc.h" |
|
670ea8f90212
Converted preproc logic to library and moved some utility stuff to lwlib
William Astle <lost@l-w.ca>
parents:
295
diff
changeset
|
25 #include "lw_strbuf.h" |
| 295 | 26 |
|
308
670ea8f90212
Converted preproc logic to library and moved some utility stuff to lwlib
William Astle <lost@l-w.ca>
parents:
295
diff
changeset
|
27 struct lw_strbuf *lw_strbuf_new(void) |
| 295 | 28 { |
|
308
670ea8f90212
Converted preproc logic to library and moved some utility stuff to lwlib
William Astle <lost@l-w.ca>
parents:
295
diff
changeset
|
29 struct lw_strbuf *lw_strbuf; |
| 295 | 30 |
|
308
670ea8f90212
Converted preproc logic to library and moved some utility stuff to lwlib
William Astle <lost@l-w.ca>
parents:
295
diff
changeset
|
31 lw_strbuf = lw_alloc(sizeof(struct lw_strbuf)); |
|
670ea8f90212
Converted preproc logic to library and moved some utility stuff to lwlib
William Astle <lost@l-w.ca>
parents:
295
diff
changeset
|
32 lw_strbuf -> str = NULL; |
|
670ea8f90212
Converted preproc logic to library and moved some utility stuff to lwlib
William Astle <lost@l-w.ca>
parents:
295
diff
changeset
|
33 lw_strbuf -> bo = 0; |
|
670ea8f90212
Converted preproc logic to library and moved some utility stuff to lwlib
William Astle <lost@l-w.ca>
parents:
295
diff
changeset
|
34 lw_strbuf -> bl = 0; |
|
670ea8f90212
Converted preproc logic to library and moved some utility stuff to lwlib
William Astle <lost@l-w.ca>
parents:
295
diff
changeset
|
35 return lw_strbuf; |
| 295 | 36 } |
| 37 | |
|
308
670ea8f90212
Converted preproc logic to library and moved some utility stuff to lwlib
William Astle <lost@l-w.ca>
parents:
295
diff
changeset
|
38 void lw_strbuf_add(struct lw_strbuf *lw_strbuf, int c) |
| 295 | 39 { |
|
308
670ea8f90212
Converted preproc logic to library and moved some utility stuff to lwlib
William Astle <lost@l-w.ca>
parents:
295
diff
changeset
|
40 if (lw_strbuf -> bo >= lw_strbuf -> bl) |
| 295 | 41 { |
|
308
670ea8f90212
Converted preproc logic to library and moved some utility stuff to lwlib
William Astle <lost@l-w.ca>
parents:
295
diff
changeset
|
42 lw_strbuf -> bl += 100; |
|
670ea8f90212
Converted preproc logic to library and moved some utility stuff to lwlib
William Astle <lost@l-w.ca>
parents:
295
diff
changeset
|
43 lw_strbuf -> str = lw_realloc(lw_strbuf -> str, lw_strbuf -> bl); |
| 295 | 44 } |
|
308
670ea8f90212
Converted preproc logic to library and moved some utility stuff to lwlib
William Astle <lost@l-w.ca>
parents:
295
diff
changeset
|
45 lw_strbuf -> str[lw_strbuf -> bo++] = c; |
| 295 | 46 } |
| 47 | |
|
308
670ea8f90212
Converted preproc logic to library and moved some utility stuff to lwlib
William Astle <lost@l-w.ca>
parents:
295
diff
changeset
|
48 char *lw_strbuf_end(struct lw_strbuf *lw_strbuf) |
| 295 | 49 { |
| 50 char *rv; | |
| 51 | |
|
308
670ea8f90212
Converted preproc logic to library and moved some utility stuff to lwlib
William Astle <lost@l-w.ca>
parents:
295
diff
changeset
|
52 lw_strbuf_add(lw_strbuf, 0); |
|
670ea8f90212
Converted preproc logic to library and moved some utility stuff to lwlib
William Astle <lost@l-w.ca>
parents:
295
diff
changeset
|
53 rv = lw_strbuf -> str; |
|
670ea8f90212
Converted preproc logic to library and moved some utility stuff to lwlib
William Astle <lost@l-w.ca>
parents:
295
diff
changeset
|
54 lw_free(lw_strbuf); |
| 295 | 55 return rv; |
| 56 } |