Merge branch 'devel'

[palacios.git] / kitten / include / lwk / ctype.h

diff --git a/kitten/include/lwk/ctype.h b/kitten/include/lwk/ctype.h
new file mode 100644 (file)
index 0000000..7ed3317
--- /dev/null
+++ b/kitten/include/lwk/ctype.h
@@ -0,0 +1,54 @@
+#ifndef _LWK_CTYPE_H
+#define _LWK_CTYPE_H
+
+/*
+ * NOTE! This ctype does not handle EOF like the standard C
+ * library is required to.
+ */
+
+#define _U     0x01    /* upper */
+#define _L     0x02    /* lower */
+#define _D     0x04    /* digit */
+#define _C     0x08    /* cntrl */
+#define _P     0x10    /* punct */
+#define _S     0x20    /* white space (space/lf/tab) */
+#define _X     0x40    /* hex digit */
+#define _SP    0x80    /* hard space (0x20) */
+
+extern unsigned char _ctype[];
+
+#define __ismask(x) (_ctype[(int)(unsigned char)(x)])
+
+#define isalnum(c)     ((__ismask(c)&(_U|_L|_D)) != 0)
+#define isalpha(c)     ((__ismask(c)&(_U|_L)) != 0)
+#define iscntrl(c)     ((__ismask(c)&(_C)) != 0)
+#define isdigit(c)     ((__ismask(c)&(_D)) != 0)
+#define isgraph(c)     ((__ismask(c)&(_P|_U|_L|_D)) != 0)
+#define islower(c)     ((__ismask(c)&(_L)) != 0)
+#define isprint(c)     ((__ismask(c)&(_P|_U|_L|_D|_SP)) != 0)
+#define ispunct(c)     ((__ismask(c)&(_P)) != 0)
+#define isspace(c)     ((__ismask(c)&(_S)) != 0)
+#define isupper(c)     ((__ismask(c)&(_U)) != 0)
+#define isxdigit(c)    ((__ismask(c)&(_D|_X)) != 0)
+
+#define isascii(c) (((unsigned char)(c))<=0x7f)
+#define toascii(c) (((unsigned char)(c))&0x7f)
+
+static inline unsigned char __tolower(unsigned char c)
+{
+       if (isupper(c))
+               c -= 'A'-'a';
+       return c;
+}
+
+static inline unsigned char __toupper(unsigned char c)
+{
+       if (islower(c))
+               c -= 'a'-'A';
+       return c;
+}
+
+#define tolower(c) __tolower(c)
+#define toupper(c) __toupper(c)
+
+#endif