BSD 4_4 release

[unix-history] / usr / src / bin / csh / char.h

diff --git a/usr/src/bin/csh/char.h b/usr/src/bin/csh/char.h
index c95c0c2..a791de4 100644 (file)
--- a/usr/src/bin/csh/char.h
+++ b/usr/src/bin/csh/char.h
@@ -1,31 +1,96 @@
-/*
- * Copyright (c) 1980 Regents of the University of California.
- * All rights reserved.  The Berkeley Software License Agreement
- * specifies the terms and conditions for redistribution.
+/*-
+ * Copyright (c) 1980, 1991, 1993
+ *     The Regents of the University of California.  All rights reserved.

  *
  *

- *     @(#)char.h      5.2 (Berkeley) %G%
- */
-
-/*
- * Table for spotting special characters quickly
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *     This product includes software developed by the University of
+ *     California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.

  *
  *

- * Makes for very obscure but efficient coding.
+ *     @(#)char.h      8.1 (Berkeley) 5/31/93

  */
 
  */
 

-extern char _cmap[];
+#include <ctype.h>
+
+extern unsigned short _cmap[];
+
+#ifndef NLS
+extern unsigned char _cmap_lower[], _cmap_upper[];
+
+#endif

 
 

-#define _Q     0x01            /* '" */
-#define _Q1    0x02            /* ` */
-#define _SP    0x04            /* space and tab */
-#define _NL    0x08            /* \n */
-#define _META  0x10            /* lex meta characters, sp #'`";&<>()|\t\n */
-#define _GLOB  0x20            /* glob characters, *?{[` */
-#define _ESC   0x40            /* \ */
-#define _DOL   0x80            /* $ */
+#define        _QF     0x0001          /* '" (Forward quotes) */
+#define        _QB     0x0002          /* ` (Backquote) */
+#define        _SP     0x0004          /* space and tab */
+#define        _NL     0x0008          /* \n */
+#define        _META   0x0010          /* lex meta characters, sp #'`";&<>()|\t\n */
+#define        _GLOB   0x0020          /* glob characters, *?{[` */
+#define        _ESC    0x0040          /* \ */
+#define        _DOL    0x0080          /* $ */
+#define        _DIG    0x0100          /* 0-9 */
+#define        _LET    0x0200          /* a-z, A-Z, _ */
+#define        _UP     0x0400          /* A-Z */
+#define        _LOW    0x0800          /* a-z */
+#define        _XD     0x1000          /* 0-9, a-f, A-F */
+#define        _CMD    0x2000          /* lex end of command chars, ;&(|` */
+#define _CTR   0x4000          /* control */

 
 

-#define cmap(c, bits)  (_cmap[(unsigned char)(c)] & (bits))
+#define cmap(c, bits)  \
+       (((c) & QUOTE) ? 0 : (_cmap[(unsigned char)(c)] & (bits)))

 
 #define isglob(c)      cmap(c, _GLOB)
 
 #define isglob(c)      cmap(c, _GLOB)

-#define isspace(c)     cmap(c, _SP)
-#define isspnl(c)      cmap(c, _SP|_NL)
+#define isspc(c)       cmap(c, _SP)

 #define ismeta(c)      cmap(c, _META)
 #define ismeta(c)      cmap(c, _META)

+#define iscmdmeta(c)   cmap(c, _CMD)
+#define letter(c)      (((c) & QUOTE) ? 0 : \
+                        (isalpha((unsigned char) (c)) || (c) == '_'))
+#define alnum(c)       (((c) & QUOTE) ? 0 : \
+                        (isalnum((unsigned char) (c)) || (c) == '_'))
+#ifdef NLS
+#define Isspace(c)     (((c) & QUOTE) ? 0 : isspace((unsigned char) (c)))
+#define Isdigit(c)     (((c) & QUOTE) ? 0 : isdigit((unsigned char) (c)))
+#define Isalpha(c)     (((c) & QUOTE) ? 0 : isalpha((unsigned char) (c)))
+#define Islower(c)     (((c) & QUOTE) ? 0 : islower((unsigned char) (c)))
+#define Isupper(c)     (((c) & QUOTE) ? 0 : isupper((unsigned char) (c)))
+#define Tolower(c)     (((c) & QUOTE) ? 0 : tolower((unsigned char) (c)))
+#define Toupper(c)     (((c) & QUOTE) ? 0 : toupper((unsigned char) (c)))
+#define Isxdigit(c)    (((c) & QUOTE) ? 0 : isxdigit((unsigned char) (c)))
+#define Isalnum(c)     (((c) & QUOTE) ? 0 : isalnum((unsigned char) (c)))
+#define Iscntrl(c)     (((c) & QUOTE) ? 0 : iscntrl((unsigned char) (c)))
+#define Isprint(c)     (((c) & QUOTE) ? 0 : isprint((unsigned char) (c)))
+#else
+#define Isspace(c)     cmap(c, _SP|_NL)
+#define Isdigit(c)     cmap(c, _DIG)
+#define Isalpha(c)     (cmap(c,_LET) && !(((c) & META) && AsciiOnly))
+#define Islower(c)     (cmap(c,_LOW) && !(((c) & META) && AsciiOnly))
+#define Isupper(c)     (cmap(c, _UP) && !(((c) & META) && AsciiOnly))
+#define Tolower(c)  (_cmap_lower[(unsigned char)(c)])
+#define Toupper(c)  (_cmap_upper[(unsigned char)(c)])
+#define Isxdigit(c)    cmap(c, _XD)
+#define Isalnum(c)     (cmap(c, _DIG|_LET) && !(((c) & META) && AsciiOnly))
+#define Iscntrl(c)  (cmap(c,_CTR) && !(((c) & META) && AsciiOnly))
+#define Isprint(c)  (!cmap(c,_CTR) && !(((c) & META) && AsciiOnly))
+#endif