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Str8 str8(U8 *ptr, U64 length)
{
Assert(ptr);
Str8 r;
r.ptr = ptr;
r.length = length;
return r;
}
Str8 str8range(U8 *start, U8 *end)
{
Str8 r;
r.ptr = start;
r.length = end-start;
return r;
}
Str8 str8fromcstr(char *cstr)
{
U8 *ptr;
Str8 r;
ptr = (U8 *)cstr;
for (; *ptr; ++ptr);
r = str8range((U8 *)cstr, ptr);
return r;
}
char *str8tocstr(Arena *arena, Str8 s)
{
U64 length;
char *r;
length = s.length+1;
r = arena_push(arena, length*sizeof(U8));
MemoryCopy(r, s.ptr, length*sizeof(U8));
*(r+s.length) = 0;
return r;
}
Str8 str8chopend(Str8 s, U64 count)
{
U64 length;
Str8 r;
length = s.length-ClampTop(count, s.length);
r = str8(s.ptr, length);
return r;
}
Str8 str8chopstart(Str8 s, U64 count)
{
U64 clamped, length;
Str8 r;
clamped = ClampTop(count, s.length);
length = s.length-ClampTop(count, s.length);
r = str8(s.ptr+clamped, length);
return r;
}
void str8print(Str8 s)
{
for (U64 i = 0; i < s.length; ++i)
printf("%c", (char)(*(s.ptr+i)));
}
Str8List *str8list(Arena *arena)
{
Str8List *list;
list = arena_push(arena, sizeof(Str8List));
MemoryZero(list, sizeof(Str8List));
return list;
}
void str8listpush(Arena *arena, Str8List *list, Str8 str, B32 to_front)
{
Assert(arena && list);
Str8Node *n;
n = arena_push(arena, sizeof(Str8Node));
n->str = str;
if (to_front)
DLLPushFront(list->first, list->last, n);
else
DLLPushBack(list->first, list->last, n);
list->total_length += str.length;
list->node_count++;
}
void str8listprint(Str8List *list)
{
Str8Node *n;
for (n = list->first; n; n = n->next)
str8print(n->str);
}
Str8 str8pushfv(Arena *arena, char *fmt, va_list args)
{
va_list args2;
Str8 r;
S32 buf_size, n;
U8 *buf;
va_copy(args2, args);
buf_size = 1024;
buf = arena_push(arena, buf_size);
n = vsnprintf((char *)buf, buf_size, fmt, args);
va_end(args2);
MemoryZero(&r, sizeof(Str8));
if (n > 0)
r = str8(buf, n);
return r;
}
Str8 str8pushf(Arena *arena, char *fmt, ...)
{
va_list args;
Str8 r;
va_start(args, fmt);
r = str8pushfv(arena, fmt, args);
va_end(args);
return r;
}
void str8listpushf(Arena *arena, Str8List *list, B32 to_front, char *fmt, ...)
{
va_list args;
Str8 str;
va_start(args, fmt);
str = str8pushfv(arena, fmt, args);
va_end(args);
str8listpush(arena, list, str, to_front);
}
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