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/* CC0 (Public domain) - see LICENSE file for details */
#include <ccan/stringbuilder/stringbuilder.h>
#include <string.h>
#include <errno.h>
int stringbuilder_args(char* str, size_t str_sz, const char* delim, ...)
{
int res;
va_list ap;
va_start(ap, delim);
res = stringbuilder_va(str, str_sz, delim, ap);
va_end(ap);
return res;
}
static int stringbuilder_cpy(
char** str, size_t* str_sz, const char* s, size_t s_len)
{
if (!s)
return 0;
if (*str != s) {
if (!s_len)
s_len = strlen(s);
if (s_len > *str_sz)
return EMSGSIZE;
strcpy(*str, s);
}
*str += s_len;
*str_sz -= s_len;
return 0;
}
int stringbuilder_va(char* str, size_t str_sz, const char* delim, va_list ap)
{
int res = 0;
size_t delim_len = 0;
const char* s = va_arg(ap, const char*);
if (delim)
delim_len = strlen(delim);
res = stringbuilder_cpy(&str, &str_sz, s, 0);
s = va_arg(ap, const char*);
while(s && !res) {
res = stringbuilder_cpy(&str, &str_sz,
delim, delim_len);
if (!res) {
res = stringbuilder_cpy(&str, &str_sz,
s, 0);
s = va_arg(ap, const char*);
}
}
return res;
}
int stringbuilder_array(char* str, size_t str_sz, const char* delim,
size_t n_strings, const char** strings)
{
int res = 0;
size_t delim_len = 0;
if (delim)
delim_len = strlen(delim);
res = stringbuilder_cpy(&str, &str_sz,
*(strings++), 0);
while(--n_strings && !res) {
res = stringbuilder_cpy(&str, &str_sz,
delim, delim_len);
if (!res)
res = stringbuilder_cpy(&str, &str_sz,
*(strings++), 0);
}
return res;
}
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