String
VS_SubString (const char * str, int begin, int len)
{
int n;
String nstr;
n = strlen (str);
if (begin >= n)
return VS_New (NULL);
if (len == -1)
n -= begin;
else
{
if (begin+len > n)
n -= begin;
else
n = len;
}
nstr = new (struct _String);
nstr->maxlen = ALIGN(n+1,8);
nstr->buffer = xmalloc (nstr->maxlen);
nstr->len = n;
strncpy (nstr->buffer, str + begin, n);
nstr->buffer[n] = 0;
return nstr;
}
static int
StringPutsCB (StringStream * ss, const char * str, CBD data)
{
if (!ss->out)
ss->out = VS_New (NULL);
VS_AppendString (ss->out, str);
return 1;
}
static int
StringPutCB (StringStream * ss, int c, CBD data)
{
if (!ss->out)
ss->out = VS_New (NULL);
VS_AppendChar (ss->out, c);
return c;
}