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#ifndef STRINGS_H
#define STRINGS_H
#define str8_lit(s) str8((U8 *)(s), sizeof(s)-1)
String8
str8(U8 *str, U64 size)
{
String8 result = { str, size };
return(result);
}
B32
str8_char_is_slash(U8 c)
{
return((c == '/') || (c == '\\'));
}
U8
str8_char_uppercase(U8 c)
{
if (c >= 'a' && c <= 'z') {
c += 'A'-'a';
}
return(c);
}
U8
str8_char_lowercase(U8 c)
{
if (c >= 'A' && c <= 'Z') {
c -= 'A'-'a';
}
return(c);
}
String8
str8_range(U8 *first, U8 *second)
{
String8 result = { first, (U64)(second-first) };
return(result);
}
String8
str8_cstring(U8 *cstr)
{
U8 *ptr = cstr;
for (; *ptr != 0; ++ptr);
String8 result = str8_range(cstr, ptr);
return(result);
}
String8
str8_prefix(String8 str, U64 size)
{
U64 clamped = ClampTop(size, str.size);
String8 result = { str.str, clamped };
return(result);
}
String8
str8_chop(String8 str, U64 amount)
{
U64 clamped = ClampTop(amount, str.size);
U64 remaining = str.size-clamped;
String8 result = { str.str, remaining };
return(result);
}
String8
str8_posfix(String8 str, U64 size)
{
U64 clamped = ClampTop(size, str.size);
U64 skip = str.size-clamped;
String8 result = { str.str+skip, clamped };
return(result);
}
String8
str8_skip(String8 str, U64 amount)
{
U64 clamped = ClampTop(amount, str.size);
String8 result = { str.str+clamped, str.size-clamped };
return(result);
}
String8
str8_substr_pos(String8 str, U64 start, U64 end)
{
U64 start_clamped = ClampTop(start, str.size);
U64 end_clamped = ClampTop(end, str.size);
String8 result = { str.str+start_clamped, end_clamped-start_clamped };
return(result);
}
String8
str8_substr_size(String8 str, U64 start, U64 size)
{
String8 result = str8_substr_pos(str, start, start+size);
return(result);
}
#endif /* STRINGS_H */
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