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#include "prbs.h"
#include "macros.h"
#include "sys.h"
#include <string.h>
#include <stdio.h>
i32
cstrings_equal(const char *s1, const char *s2)
{
assert(s1 && s2);
while (*s1++ == *s2++)
if (!*s1)
return 1;
return 0;
}
char *
string_to_cstring(struct arena *arena, struct string str)
{
u64 len = str.len + 1;
char *cstr = push_arena(arena, len);
memmove(cstr, str.ptr, len);
cstr[str.len] = 0;
return cstr;
}
struct string
string_from_cstring(struct arena *arena, const char *cstr)
{
u64 len = 0;
while (cstr[len++])
;
len--;
u8 *ptr = push_arena(arena, len);
for (i32 i = 0; i < len; i++)
ptr[i] = cstr[i];
return (struct string){ptr, len};
}
i32
strings_equal(struct string str1, struct string str2)
{
if (str1.len != str2.len)
return 0;
for (u64 i = 0; i < str1.len; ++i)
if (str1.ptr[i] != str2.ptr[i])
return 0;
return 1;
}
u8 *
find_char(struct string str, i32 c)
{
for (u64 i = 0; i < str.len; ++i)
if (str.ptr[i] == c)
return str.ptr + i;
return 0;
}
u8 *
find_last_char(struct string str, i32 c)
{
for (u64 i = str.len - 1; i > 0; --i)
if (str.ptr[i] == c)
return str.ptr + i;
return 0;
}
struct string
string_from_range(u8 *start, u8 *end)
{
assert(start);
assert(end);
assert(start < end);
return (struct string){start, end - start};
}
struct string
get_dirname(struct string str)
{
assert(str.len);
u8 *dot = find_char(str, '.');
u8 *slash = find_last_char(str, '/');
if (!slash)
return str;
return string_from_range(str.ptr, slash);
}
struct string
push_string(struct arena *arena, struct string str)
{
assert(str.ptr && str.len);
u8 *ptr = push_arena(arena, str.len);
memmove(ptr, str.ptr, str.len);
return (struct string){ptr, str.len};
}
static struct string
push_fstringv(struct arena *arena, const char *format, va_list args)
{
char tmp[kilobytes(4) + 1];
i32 len = vsnprintf(tmp, kilobytes(4), format, args);
struct string str = {0};
if (len < 0)
return str;
u8 *ptr = push_arena(arena, len);
memmove(ptr, tmp, len);
return (struct string){ptr, len};
}
struct string
push_fstring(struct arena *arena, const char *format, ...)
{
va_list args;
va_start(args, format);
struct string str = push_fstringv(arena, format, args);
va_end(args);
return str;
}
void
print_string(struct string str)
{
assert(str.ptr && str.len);
assert(str.len <= 0x7fffffff);
printf("%.*s", (i32)str.len, str.ptr);
}
void
print_stringnl(struct string str)
{
print_string(str);
printf("\n");
}
void
push_string_to_list(struct arena *arena, struct string_list *list,
i32 front, struct string str)
{
struct string_node *node = push_arena(arena, sizeof(struct string_node));
node->str = str;
if (front)
dllpushfront(list->first, list->last, node);
else
dllpushback(list->first, list->last, node);
list->len += str.len;
list->cnt++;
}
void
push_fstring_to_list(struct arena *arena, struct string_list *list,
i32 front, const char *format, ...)
{
va_list args;
va_start(args, format);
struct string str = push_fstringv(arena, format, args);
va_end(args);
push_string_to_list(arena, list, front, str);
}
struct string
join_string_list(struct arena *arena, struct string_list *list)
{
assert(arena);
assert(list);
struct string str = {arena->memory + arena->used, 0};
for (struct string_node *node = list->first; node; node = node->next) {
u8 *ptr = push_arena(arena, node->str.len);
memmove(ptr, node->str.ptr, node->str.len);
str.len += node->str.len;
}
return str;
}
void
print_string_list(struct string_list *list)
{
for (struct string_node *node = list->first; node; node = node->next)
print_string(node->str);
}
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