1 files changed, 55 insertions, 0 deletions
diff --git a/stdlib/c_strings.c b/stdlib/c_strings.c
new file mode 100644
index 00000000..392565ab
--- /dev/null
+++ b/stdlib/c_strings.c
@@ -0,0 +1,55 @@
+// Type info and methods for CString datatype (char*)
+#include <ctype.h>
+#include <err.h>
+#include <gc.h>
+#include <stdbool.h>
+#include <stdint.h>
+#include <stdlib.h>
+
+#include "text.h"
+#include "siphash.h"
+#include "util.h"
+
+public Text_t CString$as_text(const char **c_string, bool colorize, const TypeInfo *info)
+{
+    (void)info;
+    if (!c_string) return Text("CString");
+    Text_t text = Text$from_str(*c_string);
+    return Text$concat(colorize ? Text("\x1b[34mCString\x1b[m(") : Text("CString("), Text$quoted(text, colorize), Text(")"));
+}
+
+public Text_t CString$as_text_simple(const char *str)
+{
+    return Text$format("%s", str);
+}
+
+PUREFUNC public int32_t CString$compare(const char **x, const char **y)
+{
+    if (x == y)
+        return 0;
+
+    if (!*x != !*y)
+        return (!*y) - (!*x);
+
+    return strcmp(*x, *y);
+}
+
+PUREFUNC public bool CString$equal(const char **x, const char **y)
+{
+    return CString$compare(x, y) == 0;
+}
+
+PUREFUNC public uint64_t CString$hash(const char **c_str)
+{
+    if (!*c_str) return 0;
+    return siphash24((void*)*c_str, strlen(*c_str));
+}
+
+public const TypeInfo CString$info = {
+    .size=sizeof(char*),
+    .align=__alignof__(char*),
+    .tag=CStringInfo,
+    .CustomInfo={.as_text=(void*)CString$as_text, .compare=(void*)CString$compare, .equal=(void*)CString$equal, .hash=(void*)CString$hash},
+};
+
+// vim: ts=4 sw=0 et cino=L2,l1,(0,W4,m1,\:0