<ctype.h> functions' behaviour depends on the current locale set via
setlocale.
- Copyright (C) 2000-2003, 2006, 2008-2012 Free Software Foundation, Inc.
+ Copyright (C) 2000-2003, 2006, 2008-2016 Free Software Foundation, Inc.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
#include <stdbool.h>
+#ifndef _GL_INLINE_HEADER_BEGIN
+ #error "Please include config.h first."
+#endif
+_GL_INLINE_HEADER_BEGIN
+#ifndef C_CTYPE_INLINE
+# define C_CTYPE_INLINE _GL_INLINE
+#endif
#ifdef __cplusplus
extern "C" {
characters. */
-/* Check whether the ASCII optimizations apply. */
-
-/* ANSI C89 (and ISO C99 5.2.1.3 too) already guarantees that
- '0', '1', ..., '9' have consecutive integer values. */
-#define C_CTYPE_CONSECUTIVE_DIGITS 1
-
-#if ('A' <= 'Z') \
- && ('A' + 1 == 'B') && ('B' + 1 == 'C') && ('C' + 1 == 'D') \
- && ('D' + 1 == 'E') && ('E' + 1 == 'F') && ('F' + 1 == 'G') \
- && ('G' + 1 == 'H') && ('H' + 1 == 'I') && ('I' + 1 == 'J') \
- && ('J' + 1 == 'K') && ('K' + 1 == 'L') && ('L' + 1 == 'M') \
- && ('M' + 1 == 'N') && ('N' + 1 == 'O') && ('O' + 1 == 'P') \
- && ('P' + 1 == 'Q') && ('Q' + 1 == 'R') && ('R' + 1 == 'S') \
- && ('S' + 1 == 'T') && ('T' + 1 == 'U') && ('U' + 1 == 'V') \
- && ('V' + 1 == 'W') && ('W' + 1 == 'X') && ('X' + 1 == 'Y') \
- && ('Y' + 1 == 'Z')
-#define C_CTYPE_CONSECUTIVE_UPPERCASE 1
-#endif
-
-#if ('a' <= 'z') \
- && ('a' + 1 == 'b') && ('b' + 1 == 'c') && ('c' + 1 == 'd') \
- && ('d' + 1 == 'e') && ('e' + 1 == 'f') && ('f' + 1 == 'g') \
- && ('g' + 1 == 'h') && ('h' + 1 == 'i') && ('i' + 1 == 'j') \
- && ('j' + 1 == 'k') && ('k' + 1 == 'l') && ('l' + 1 == 'm') \
- && ('m' + 1 == 'n') && ('n' + 1 == 'o') && ('o' + 1 == 'p') \
- && ('p' + 1 == 'q') && ('q' + 1 == 'r') && ('r' + 1 == 's') \
- && ('s' + 1 == 't') && ('t' + 1 == 'u') && ('u' + 1 == 'v') \
- && ('v' + 1 == 'w') && ('w' + 1 == 'x') && ('x' + 1 == 'y') \
- && ('y' + 1 == 'z')
-#define C_CTYPE_CONSECUTIVE_LOWERCASE 1
-#endif
-
#if (' ' == 32) && ('!' == 33) && ('"' == 34) && ('#' == 35) \
&& ('%' == 37) && ('&' == 38) && ('\'' == 39) && ('(' == 40) \
&& (')' == 41) && ('*' == 42) && ('+' == 43) && (',' == 44) \
&& ('{' == 123) && ('|' == 124) && ('}' == 125) && ('~' == 126)
/* The character set is ASCII or one of its variants or extensions, not EBCDIC.
Testing the value of '\n' and '\r' is not relevant. */
-#define C_CTYPE_ASCII 1
+# define C_CTYPE_ASCII 1
+#elif ! (' ' == '\x40' && '0' == '\xf0' \
+ && 'A' == '\xc1' && 'J' == '\xd1' && 'S' == '\xe2' \
+ && 'a' == '\x81' && 'j' == '\x91' && 's' == '\xa2')
+# error "Only ASCII and EBCDIC are supported"
#endif
+#if 'A' < 0
+# error "EBCDIC and char is signed -- not supported"
+#endif
+
+/* Cases for control characters. */
+
+#define _C_CTYPE_CNTRL \
+ case '\a': case '\b': case '\f': case '\n': \
+ case '\r': case '\t': case '\v': \
+ _C_CTYPE_OTHER_CNTRL
+
+/* ASCII control characters other than those with \-letter escapes. */
+
+#if C_CTYPE_ASCII
+# define _C_CTYPE_OTHER_CNTRL \
+ case '\x00': case '\x01': case '\x02': case '\x03': \
+ case '\x04': case '\x05': case '\x06': case '\x0e': \
+ case '\x0f': case '\x10': case '\x11': case '\x12': \
+ case '\x13': case '\x14': case '\x15': case '\x16': \
+ case '\x17': case '\x18': case '\x19': case '\x1a': \
+ case '\x1b': case '\x1c': case '\x1d': case '\x1e': \
+ case '\x1f': case '\x7f'
+#else
+ /* Use EBCDIC code page 1047's assignments for ASCII control chars;
+ assume all EBCDIC code pages agree about these assignments. */
+# define _C_CTYPE_OTHER_CNTRL \
+ case '\x00': case '\x01': case '\x02': case '\x03': \
+ case '\x07': case '\x0e': case '\x0f': case '\x10': \
+ case '\x11': case '\x12': case '\x13': case '\x18': \
+ case '\x19': case '\x1c': case '\x1d': case '\x1e': \
+ case '\x1f': case '\x26': case '\x27': case '\x2d': \
+ case '\x2e': case '\x32': case '\x37': case '\x3c': \
+ case '\x3d': case '\x3f'
+#endif
-/* Function declarations. */
+/* Cases for lowercase hex letters, and lowercase letters, all offset by N. */
+
+#define _C_CTYPE_LOWER_A_THRU_F_N(n) \
+ case 'a' + (n): case 'b' + (n): case 'c' + (n): case 'd' + (n): \
+ case 'e' + (n): case 'f' + (n)
+#define _C_CTYPE_LOWER_N(n) \
+ _C_CTYPE_LOWER_A_THRU_F_N(n): \
+ case 'g' + (n): case 'h' + (n): case 'i' + (n): case 'j' + (n): \
+ case 'k' + (n): case 'l' + (n): case 'm' + (n): case 'n' + (n): \
+ case 'o' + (n): case 'p' + (n): case 'q' + (n): case 'r' + (n): \
+ case 's' + (n): case 't' + (n): case 'u' + (n): case 'v' + (n): \
+ case 'w' + (n): case 'x' + (n): case 'y' + (n): case 'z' + (n)
+
+/* Cases for hex letters, digits, lower, punct, and upper. */
+
+#define _C_CTYPE_A_THRU_F \
+ _C_CTYPE_LOWER_A_THRU_F_N (0): \
+ _C_CTYPE_LOWER_A_THRU_F_N ('A' - 'a')
+#define _C_CTYPE_DIGIT \
+ case '0': case '1': case '2': case '3': \
+ case '4': case '5': case '6': case '7': \
+ case '8': case '9'
+#define _C_CTYPE_LOWER _C_CTYPE_LOWER_N (0)
+#define _C_CTYPE_PUNCT \
+ case '!': case '"': case '#': case '$': \
+ case '%': case '&': case '\'': case '(': \
+ case ')': case '*': case '+': case ',': \
+ case '-': case '.': case '/': case ':': \
+ case ';': case '<': case '=': case '>': \
+ case '?': case '@': case '[': case '\\': \
+ case ']': case '^': case '_': case '`': \
+ case '{': case '|': case '}': case '~'
+#define _C_CTYPE_UPPER _C_CTYPE_LOWER_N ('A' - 'a')
+
+
+/* Function definitions. */
/* Unlike the functions in <ctype.h>, which require an argument in the range
of the 'unsigned char' type, the functions here operate on values that are
if (c_isalpha (*s)) ...
*/
-extern bool c_isascii (int c) _GL_ATTRIBUTE_CONST; /* not locale dependent */
-
-extern bool c_isalnum (int c) _GL_ATTRIBUTE_CONST;
-extern bool c_isalpha (int c) _GL_ATTRIBUTE_CONST;
-extern bool c_isblank (int c) _GL_ATTRIBUTE_CONST;
-extern bool c_iscntrl (int c) _GL_ATTRIBUTE_CONST;
-extern bool c_isdigit (int c) _GL_ATTRIBUTE_CONST;
-extern bool c_islower (int c) _GL_ATTRIBUTE_CONST;
-extern bool c_isgraph (int c) _GL_ATTRIBUTE_CONST;
-extern bool c_isprint (int c) _GL_ATTRIBUTE_CONST;
-extern bool c_ispunct (int c) _GL_ATTRIBUTE_CONST;
-extern bool c_isspace (int c) _GL_ATTRIBUTE_CONST;
-extern bool c_isupper (int c) _GL_ATTRIBUTE_CONST;
-extern bool c_isxdigit (int c) _GL_ATTRIBUTE_CONST;
-
-extern int c_tolower (int c) _GL_ATTRIBUTE_CONST;
-extern int c_toupper (int c) _GL_ATTRIBUTE_CONST;
-
-
-#if defined __GNUC__ && defined __OPTIMIZE__ && !defined __OPTIMIZE_SIZE__ && !defined NO_C_CTYPE_MACROS
-
-/* ASCII optimizations. */
-
-#undef c_isascii
-#define c_isascii(c) \
- ({ int __c = (c); \
- (__c >= 0x00 && __c <= 0x7f); \
- })
+C_CTYPE_INLINE bool
+c_isalnum (int c)
+{
+ switch (c)
+ {
+ _C_CTYPE_DIGIT:
+ _C_CTYPE_LOWER:
+ _C_CTYPE_UPPER:
+ return true;
+ default:
+ return false;
+ }
+}
-#if C_CTYPE_CONSECUTIVE_DIGITS \
- && C_CTYPE_CONSECUTIVE_UPPERCASE && C_CTYPE_CONSECUTIVE_LOWERCASE
-#if C_CTYPE_ASCII
-#undef c_isalnum
-#define c_isalnum(c) \
- ({ int __c = (c); \
- ((__c >= '0' && __c <= '9') \
- || ((__c & ~0x20) >= 'A' && (__c & ~0x20) <= 'Z')); \
- })
-#else
-#undef c_isalnum
-#define c_isalnum(c) \
- ({ int __c = (c); \
- ((__c >= '0' && __c <= '9') \
- || (__c >= 'A' && __c <= 'Z') \
- || (__c >= 'a' && __c <= 'z')); \
- })
-#endif
-#endif
+C_CTYPE_INLINE bool
+c_isalpha (int c)
+{
+ switch (c)
+ {
+ _C_CTYPE_LOWER:
+ _C_CTYPE_UPPER:
+ return true;
+ default:
+ return false;
+ }
+}
-#if C_CTYPE_CONSECUTIVE_UPPERCASE && C_CTYPE_CONSECUTIVE_LOWERCASE
-#if C_CTYPE_ASCII
-#undef c_isalpha
-#define c_isalpha(c) \
- ({ int __c = (c); \
- ((__c & ~0x20) >= 'A' && (__c & ~0x20) <= 'Z'); \
- })
-#else
-#undef c_isalpha
-#define c_isalpha(c) \
- ({ int __c = (c); \
- ((__c >= 'A' && __c <= 'Z') || (__c >= 'a' && __c <= 'z')); \
- })
-#endif
-#endif
+/* The function isascii is not locale dependent.
+ Its use in EBCDIC is questionable. */
+C_CTYPE_INLINE bool
+c_isascii (int c)
+{
+ switch (c)
+ {
+ case ' ':
+ _C_CTYPE_CNTRL:
+ _C_CTYPE_DIGIT:
+ _C_CTYPE_LOWER:
+ _C_CTYPE_PUNCT:
+ _C_CTYPE_UPPER:
+ return true;
+ default:
+ return false;
+ }
+}
-#undef c_isblank
-#define c_isblank(c) \
- ({ int __c = (c); \
- (__c == ' ' || __c == '\t'); \
- })
+C_CTYPE_INLINE bool
+c_isblank (int c)
+{
+ return c == ' ' || c == '\t';
+}
-#if C_CTYPE_ASCII
-#undef c_iscntrl
-#define c_iscntrl(c) \
- ({ int __c = (c); \
- ((__c & ~0x1f) == 0 || __c == 0x7f); \
- })
-#endif
+C_CTYPE_INLINE bool
+c_iscntrl (int c)
+{
+ switch (c)
+ {
+ _C_CTYPE_CNTRL:
+ return true;
+ default:
+ return false;
+ }
+}
-#if C_CTYPE_CONSECUTIVE_DIGITS
-#undef c_isdigit
-#define c_isdigit(c) \
- ({ int __c = (c); \
- (__c >= '0' && __c <= '9'); \
- })
-#endif
+C_CTYPE_INLINE bool
+c_isdigit (int c)
+{
+ switch (c)
+ {
+ _C_CTYPE_DIGIT:
+ return true;
+ default:
+ return false;
+ }
+}
-#if C_CTYPE_CONSECUTIVE_LOWERCASE
-#undef c_islower
-#define c_islower(c) \
- ({ int __c = (c); \
- (__c >= 'a' && __c <= 'z'); \
- })
-#endif
+C_CTYPE_INLINE bool
+c_isgraph (int c)
+{
+ switch (c)
+ {
+ _C_CTYPE_DIGIT:
+ _C_CTYPE_LOWER:
+ _C_CTYPE_PUNCT:
+ _C_CTYPE_UPPER:
+ return true;
+ default:
+ return false;
+ }
+}
-#if C_CTYPE_ASCII
-#undef c_isgraph
-#define c_isgraph(c) \
- ({ int __c = (c); \
- (__c >= '!' && __c <= '~'); \
- })
-#endif
+C_CTYPE_INLINE bool
+c_islower (int c)
+{
+ switch (c)
+ {
+ _C_CTYPE_LOWER:
+ return true;
+ default:
+ return false;
+ }
+}
-#if C_CTYPE_ASCII
-#undef c_isprint
-#define c_isprint(c) \
- ({ int __c = (c); \
- (__c >= ' ' && __c <= '~'); \
- })
-#endif
+C_CTYPE_INLINE bool
+c_isprint (int c)
+{
+ switch (c)
+ {
+ case ' ':
+ _C_CTYPE_DIGIT:
+ _C_CTYPE_LOWER:
+ _C_CTYPE_PUNCT:
+ _C_CTYPE_UPPER:
+ return true;
+ default:
+ return false;
+ }
+}
-#if C_CTYPE_ASCII
-#undef c_ispunct
-#define c_ispunct(c) \
- ({ int _c = (c); \
- (c_isgraph (_c) && ! c_isalnum (_c)); \
- })
-#endif
+C_CTYPE_INLINE bool
+c_ispunct (int c)
+{
+ switch (c)
+ {
+ _C_CTYPE_PUNCT:
+ return true;
+ default:
+ return false;
+ }
+}
-#undef c_isspace
-#define c_isspace(c) \
- ({ int __c = (c); \
- (__c == ' ' || __c == '\t' \
- || __c == '\n' || __c == '\v' || __c == '\f' || __c == '\r'); \
- })
-
-#if C_CTYPE_CONSECUTIVE_UPPERCASE
-#undef c_isupper
-#define c_isupper(c) \
- ({ int __c = (c); \
- (__c >= 'A' && __c <= 'Z'); \
- })
-#endif
+C_CTYPE_INLINE bool
+c_isspace (int c)
+{
+ switch (c)
+ {
+ case ' ': case '\t': case '\n': case '\v': case '\f': case '\r':
+ return true;
+ default:
+ return false;
+ }
+}
-#if C_CTYPE_CONSECUTIVE_DIGITS \
- && C_CTYPE_CONSECUTIVE_UPPERCASE && C_CTYPE_CONSECUTIVE_LOWERCASE
-#if C_CTYPE_ASCII
-#undef c_isxdigit
-#define c_isxdigit(c) \
- ({ int __c = (c); \
- ((__c >= '0' && __c <= '9') \
- || ((__c & ~0x20) >= 'A' && (__c & ~0x20) <= 'F')); \
- })
-#else
-#undef c_isxdigit
-#define c_isxdigit(c) \
- ({ int __c = (c); \
- ((__c >= '0' && __c <= '9') \
- || (__c >= 'A' && __c <= 'F') \
- || (__c >= 'a' && __c <= 'f')); \
- })
-#endif
-#endif
+C_CTYPE_INLINE bool
+c_isupper (int c)
+{
+ switch (c)
+ {
+ _C_CTYPE_UPPER:
+ return true;
+ default:
+ return false;
+ }
+}
-#if C_CTYPE_CONSECUTIVE_UPPERCASE && C_CTYPE_CONSECUTIVE_LOWERCASE
-#undef c_tolower
-#define c_tolower(c) \
- ({ int __c = (c); \
- (__c >= 'A' && __c <= 'Z' ? __c - 'A' + 'a' : __c); \
- })
-#undef c_toupper
-#define c_toupper(c) \
- ({ int __c = (c); \
- (__c >= 'a' && __c <= 'z' ? __c - 'a' + 'A' : __c); \
- })
-#endif
+C_CTYPE_INLINE bool
+c_isxdigit (int c)
+{
+ switch (c)
+ {
+ _C_CTYPE_DIGIT:
+ _C_CTYPE_A_THRU_F:
+ return true;
+ default:
+ return false;
+ }
+}
-#endif /* optimizing for speed */
+C_CTYPE_INLINE int
+c_tolower (int c)
+{
+ switch (c)
+ {
+ _C_CTYPE_UPPER:
+ return c - 'A' + 'a';
+ default:
+ return c;
+ }
+}
+C_CTYPE_INLINE int
+c_toupper (int c)
+{
+ switch (c)
+ {
+ _C_CTYPE_LOWER:
+ return c - 'a' + 'A';
+ default:
+ return c;
+ }
+}
#ifdef __cplusplus
}
#endif
+_GL_INLINE_HEADER_END
+
#endif /* C_CTYPE_H */