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// Boolean methods/type info
#include <err.h>
#include <gc.h>
#include <stdbool.h>
#include <stdint.h>
#include <sys/param.h>
#include "bools.h"
#include "optionals.h"
#include "text.h"
#include "util.h"
PUREFUNC public Text_t Bool$as_text(const void *b, bool colorize, const TypeInfo_t *info)
{
(void)info;
if (!b) return Text("Bool");
if (colorize)
return *(Bool_t*)b ? Text("\x1b[35myes\x1b[m") : Text("\x1b[35mno\x1b[m");
else
return *(Bool_t*)b ? Text("yes") : Text("no");
}
static bool try_parse(Text_t text, Text_t target, bool target_value, Text_t *remainder, bool *result)
{
static const Text_t lang = Text("C");
if (text.length < target.length) return false;
Text_t prefix = Text$to(text, Int$from_int64(target.length));
if (Text$equal_ignoring_case(prefix, target, lang)) {
if (remainder) *remainder = Text$from(text, Int$from_int64(target.length + 1));
else if (text.length > target.length) return false;
*result = target_value;
return true;
} else {
return false;
}
}
PUREFUNC public OptionalBool_t Bool$parse(Text_t text, Text_t *remainder)
{
bool result;
if (try_parse(text, Text("yes"), true, remainder, &result)
|| try_parse(text, Text("true"), true, remainder, &result)
|| try_parse(text, Text("on"), true, remainder, &result)
|| try_parse(text, Text("1"), true, remainder, &result)
|| try_parse(text, Text("no"), false, remainder, &result)
|| try_parse(text, Text("false"), false, remainder, &result)
|| try_parse(text, Text("off"), false, remainder, &result)
|| try_parse(text, Text("0"), false, remainder, &result))
return result;
else
return NONE_BOOL;
}
static bool Bool$is_none(const void *b, const TypeInfo_t *info)
{
(void)info;
return *(OptionalBool_t*)b == NONE_BOOL;
}
public const TypeInfo_t Bool$info = {
.size=sizeof(bool),
.align=__alignof__(bool),
.metamethods={
.as_text=Bool$as_text,
.is_none=Bool$is_none,
},
};
// vim: ts=4 sw=0 et cino=L2,l1,(0,W4,m1,\:0
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