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-rw-r--r--libc/misc/ctype/ctype.h21
1 files changed, 21 insertions, 0 deletions
diff --git a/libc/misc/ctype/ctype.h b/libc/misc/ctype/ctype.h
new file mode 100644
index 000000000..f9a34cb18
--- /dev/null
+++ b/libc/misc/ctype/ctype.h
@@ -0,0 +1,21 @@
+extern const unsigned char *_uc_ctype_b;
+extern const unsigned char *_uc_ctype_trans;
+
+extern const unsigned char _uc_ctype_b_C[256+256];
+
+#define LOCALE_BUF_SIZE (sizeof(_uc_ctype_b_C))
+
+#define ISbit(bit) (1 << bit)
+
+enum
+{
+ ISprint = ISbit (0), /* 1 Printable. */
+ ISupper = ISbit (1), /* 2 UPPERCASE. */
+ ISlower = ISbit (2), /* 4 lowercase. */
+ IScntrl = ISbit (3), /* 8 Control character. */
+ ISspace = ISbit (4), /* 16 Whitespace. */
+ ISpunct = ISbit (5), /* 32 Punctuation. */
+ ISalpha = ISbit (6), /* 64 Alphabetic. */
+ ISxdigit = ISbit (7), /* 128 Hexnumeric. */
+};
+