1 /* Copyright (C) 2008 Board of Trustees, Leland Stanford Jr. University.
3 * Permission is hereby granted, free of charge, to any person obtaining a copy
4 * of this software and associated documentation files (the "Software"), to
5 * deal in the Software without restriction, including without limitation the
6 * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
7 * sell copies of the Software, and to permit persons to whom the Software is
8 * furnished to do so, subject to the following conditions:
10 * The above copyright notice and this permission notice shall be included in
11 * all copies or substantial portions of the Software.
13 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
14 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
15 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
16 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
17 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
18 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
22 #include "dynamic-string.h"
28 ds_init(struct ds *ds)
36 ds_reserve(struct ds *ds, size_t min_length)
38 if (min_length > ds->allocated || !ds->string) {
39 ds->allocated += MAX(min_length, ds->allocated);
40 ds->allocated = MAX(8, ds->allocated);
41 ds->string = xrealloc(ds->string, ds->allocated + 1);
46 ds_put_format(struct ds *ds, const char *format, ...)
50 va_start(args, format);
51 ds_put_format_valist(ds, format, args);
56 ds_put_format_valist(struct ds *ds, const char *format, va_list args_)
63 available = ds->string ? ds->allocated - ds->length + 1 : 0;
64 needed = vsnprintf(&ds->string[ds->length], available, format, args);
67 if (needed < available) {
72 ds_reserve(ds, ds->length + needed);
75 available = ds->allocated - ds->length + 1;
76 needed = vsnprintf(&ds->string[ds->length], available, format, args);
79 assert(needed < available);
85 ds_cstr(struct ds *ds)
95 ds_destroy(struct ds *ds)