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Diff for /src/usr.bin/less/less.h between version 1.1.1.1 and 1.1.1.2

-version 1.1.1.1, 1996/09/21 05:39:44
+version 1.1.1.2, 2003/04/13 18:21:21
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  /*
-  * Copyright (c) 1984,1985,1989,1994,1995  Mark Nudelman
+  * Copyright (C) 1984-2002  Mark Nudelman
-  * All rights reserved.
   *
-  * Redistribution and use in source and binary forms, with or without
+  * You may distribute under the terms of either the GNU General Public
-  * modification, are permitted provided that the following conditions
+  * License or the Less License, as specified in the README file.
-  * 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 in the documentation and/or other materials provided with
-  *    the distribution.
   *
-  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY
+  * For more information about less, or for information on how to
-  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+  * contact the author, see the README file.
-  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
-  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR 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.
   */
-Line 30
+Line 14
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   */
  /*
+  * Defines for MSDOS_COMPILER.
+  */
+ #define MSOFTC          1       /* Microsoft C */
+ #define BORLANDC        2       /* Borland C */
+ #define WIN32C          3       /* Windows (Borland C or Microsoft C) */
+ #define DJGPPC          4       /* DJGPP C */
+ /*
   * Include the file of compile-time options.
   * The <> make cc search for it in -I., not srcdir.
   */
-Line 53
+Line 45
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  #define VOID_POINTER    char *
  #define void  int
  #endif
+ #if HAVE_CONST
+ #define constant        const
+ #else
+ #define constant
+ #endif
  #define public          /* PUBLIC FUNCTION */
-Line 73
+Line 70
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 Line 70
  #if HAVE_CTYPE_H
  #include <ctype.h>
  #endif
- #if STDC_HEADERS
+ #if HAVE_LIMITS_H
+ #include <limits.h>
+ #endif
+ #if HAVE_STDLIB_H
  #include <stdlib.h>
+ #endif
+ #if HAVE_STRING_H
  #include <string.h>
  #endif
+ #ifdef _OSK
+ #include <modes.h>
+ #include <strings.h>
+ #endif
+ #if MSDOS_COMPILER==WIN32C || OS2
+ #include <io.h>
+ #endif
+ #if MSDOS_COMPILER==DJGPPC
+ #include <io.h>
+ #include <sys/exceptn.h>
+ #include <conio.h>
+ #include <pc.h>
+ #endif
- #if !STDC_HEADERS
+ #if !HAVE_STDLIB_H
  char *getenv();
  off_t lseek();
  VOID_POINTER calloc();
  void free();
  #endif
+ /*
+  * Simple lowercase test which can be used during option processing
+  * (before options are parsed which might tell us what charset to use).
+  */
+ #define SIMPLE_IS_UPPER(c)      ((c) >= 'A' && (c) <= 'Z')
+ #define SIMPLE_IS_LOWER(c)      ((c) >= 'a' && (c) <= 'z')
+ #define SIMPLE_TO_UPPER(c)      ((c) - 'a' + 'A')
+ #define SIMPLE_TO_LOWER(c)      ((c) - 'A' + 'a')
  #if !HAVE_UPPER_LOWER
- #define isupper(c)      ((c) >= 'A' && (c) <= 'Z')
+ #define isupper(c)      SIMPLE_IS_UPPER(c)
- #define islower(c)      ((c) >= 'a' && (c) <= 'z')
+ #define islower(c)      SIMPLE_IS_LOWER(c)
- #define toupper(c)      ((c) - 'a' + 'A')
+ #define toupper(c)      SIMPLE_TO_UPPER(c)
- #define tolower(c)      ((c) - 'A' + 'a')
+ #define tolower(c)      SIMPLE_TO_LOWER(c)
  #endif
  #ifndef NULL
-Line 107
+Line 131
 Line 107
 Line 131
  #define OPT_ON          1
  #define OPT_ONPLUS      2
- #ifndef HAVE_MEMCPY
+ #if !HAVE_MEMCPY
  #ifndef memcpy
  #define memcpy(to,from,len)     bcopy((from),(to),(len))
  #endif
-Line 115
+Line 139
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 Line 139
  #define BAD_LSEEK       ((off_t)-1)
+ #ifndef CHAR_BIT
+ #define CHAR_BIT 8
+ #endif
  /*
-  * Special types and constants.
+  * Upper bound on the string length of an integer converted to string.
+  * 302 / 1000 is ceil (log10 (2.0)).  Subtract 1 for the sign bit;
+  * add 1 for integer division truncation; add 1 more for a minus sign.
   */
- typedef long            POSITION;
+ #define INT_STRLEN_BOUND(t) ((sizeof(t) * CHAR_BIT - 1) * 302 / 1000 + 1 + 1)
  /*
-  * {{ Warning: if POSITION is changed to other than "long",
+  * Special types and constants.
-  *    you may have to change some of the printfs which use "%ld"
-  *    to print a variable of type POSITION. }}
   */
+ typedef off_t           POSITION;
+ typedef off_t           LINENUM;
+ #define MIN_LINENUM_WIDTH  7    /* Min printing width of a line number */
  #define NULL_POSITION   ((POSITION)(-1))
  /*
   * Flags for open()
   */
- #if MSOFTC || OS2
+ #if MSDOS_COMPILER || OS2
  #define OPEN_READ       (O_RDONLY|O_BINARY)
  #else
+ #ifdef _OSK
+ #define OPEN_READ       (S_IREAD)
+ #else
+ #ifdef O_RDONLY
+ #define OPEN_READ       (O_RDONLY)
+ #else
  #define OPEN_READ       (0)
  #endif
- #if MSOFTC || OS2
+ #endif
+ #endif
+ #if defined(O_WRONLY) && defined(O_APPEND)
  #define OPEN_APPEND     (O_APPEND|O_WRONLY)
  #else
+ #ifdef _OSK
+ #define OPEN_APPEND     (S_IWRITE)
+ #else
  #define OPEN_APPEND     (1)
  #endif
+ #endif
- #if MSOFTC || OS2
+ /*
- #define OPEN_TTYIN()    open("CON", O_BINARY|O_RDONLY)
+  * Set a file descriptor to binary mode.
+  */
+ #if MSDOS_COMPILER==MSOFTC
+ #define SET_BINARY(f)   _setmode(f, _O_BINARY);
  #else
- #define OPEN_TTYIN()    open("/dev/tty", 0)
+ #if MSDOS_COMPILER || OS2
+ #define SET_BINARY(f)   setmode(f, O_BINARY)
+ #else
+ #define SET_BINARY(f)
  #endif
+ #endif
  /*
+  * Does the shell treat "?" as a metacharacter?
+  */
+ #if MSDOS_COMPILER || OS2 || _OSK
+ #define SHELL_META_QUEST 0
+ #else
+ #define SHELL_META_QUEST 1
+ #endif
+ #define SPACES_IN_FILENAMES 1
+ /*
   * An IFILE represents an input file.
   */
  #define IFILE           VOID_POINTER
-Line 170
+Line 233
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  {
          char *p_string;
          int p_int;
+         LINENUM p_linenum;
  } PARG;
  #define NULL_PARG       ((PARG *)NULL)
-Line 200
+Line 264
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  #define BS_CONTROL      2       /* \b treated as control char; prints as ^H */
  /* How should we search? */
- #define SRCH_FORW       0001    /* Search forward from current position */
+ #define SRCH_FORW       000001  /* Search forward from current position */
- #define SRCH_BACK       0002    /* Search backward from current position */
+ #define SRCH_BACK       000002  /* Search backward from current position */
- #define SRCH_FIND_ALL   0010    /* Find and highlight all matches */
+ #define SRCH_NO_MOVE    000004  /* Highlight, but don't move */
- #define SRCH_NOMATCH    0100    /* Search for non-matching lines */
+ #define SRCH_FIND_ALL   000010  /* Find and highlight all matches */
- #define SRCH_PAST_EOF   0200    /* Search past end-of-file, into next file */
+ #define SRCH_NO_MATCH   000100  /* Search for non-matching lines */
- #define SRCH_FIRST_FILE 0400    /* Search starting at the first file */
+ #define SRCH_PAST_EOF   000200  /* Search past end-of-file, into next file */
+ #define SRCH_FIRST_FILE 000400  /* Search starting at the first file */
+ #define SRCH_NO_REGEX   001000  /* Don't use regular expressions */
  #define SRCH_REVERSE(t) (((t) & SRCH_FORW) ? \
                                  (((t) & ~SRCH_FORW) | SRCH_BACK) : \
-Line 221
+Line 287
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  #define CC_ERROR        2       /* Char could not be accepted due to error */
  #define CC_PASS         3       /* Char was rejected (internal) */
+ #define CF_QUIT_ON_ERASE 0001   /* Abort cmd if its entirely erased */
  /* Special chars used to tell put_line() to do something special */
  #define AT_NORMAL       (0)
  #define AT_UNDERLINE    (1)
-Line 229
+Line 297
 Line 229
 Line 297
  #define AT_INVIS        (4)
  #define AT_STANDOUT     (5)
+ #if '0' == 240
+ #define IS_EBCDIC_HOST 1
+ #endif
+ #if IS_EBCDIC_HOST
+ /*
+  * Long definition for EBCDIC.
+  * Since the argument is usually a constant, this macro normally compiles
+  * into a constant.
+  */
+ #define CONTROL(c) ( \
+         (c)=='[' ? '\047' : \
+         (c)=='a' ? '\001' : \
+         (c)=='b' ? '\002' : \
+         (c)=='c' ? '\003' : \
+         (c)=='d' ? '\067' : \
+         (c)=='e' ? '\055' : \
+         (c)=='f' ? '\056' : \
+         (c)=='g' ? '\057' : \
+         (c)=='h' ? '\026' : \
+         (c)=='i' ? '\005' : \
+         (c)=='j' ? '\025' : \
+         (c)=='k' ? '\013' : \
+         (c)=='l' ? '\014' : \
+         (c)=='m' ? '\015' : \
+         (c)=='n' ? '\016' : \
+         (c)=='o' ? '\017' : \
+         (c)=='p' ? '\020' : \
+         (c)=='q' ? '\021' : \
+         (c)=='r' ? '\022' : \
+         (c)=='s' ? '\023' : \
+         (c)=='t' ? '\074' : \
+         (c)=='u' ? '\075' : \
+         (c)=='v' ? '\062' : \
+         (c)=='w' ? '\046' : \
+         (c)=='x' ? '\030' : \
+         (c)=='y' ? '\031' : \
+         (c)=='z' ? '\077' : \
+         (c)=='A' ? '\001' : \
+         (c)=='B' ? '\002' : \
+         (c)=='C' ? '\003' : \
+         (c)=='D' ? '\067' : \
+         (c)=='E' ? '\055' : \
+         (c)=='F' ? '\056' : \
+         (c)=='G' ? '\057' : \
+         (c)=='H' ? '\026' : \
+         (c)=='I' ? '\005' : \
+         (c)=='J' ? '\025' : \
+         (c)=='K' ? '\013' : \
+         (c)=='L' ? '\014' : \
+         (c)=='M' ? '\015' : \
+         (c)=='N' ? '\016' : \
+         (c)=='O' ? '\017' : \
+         (c)=='P' ? '\020' : \
+         (c)=='Q' ? '\021' : \
+         (c)=='R' ? '\022' : \
+         (c)=='S' ? '\023' : \
+         (c)=='T' ? '\074' : \
+         (c)=='U' ? '\075' : \
+         (c)=='V' ? '\062' : \
+         (c)=='W' ? '\046' : \
+         (c)=='X' ? '\030' : \
+         (c)=='Y' ? '\031' : \
+         (c)=='Z' ? '\077' : \
+         (c)=='|' ? '\031' : \
+         (c)=='\\' ? '\034' : \
+         (c)=='^' ? '\036' : \
+         (c)&077)
+ #else
  #define CONTROL(c)      ((c)&037)
+ #endif /* IS_EBCDIC_HOST */
  #define ESC             CONTROL('[')
- #define SIGNAL(sig,func)        signal(sig,func)
+ #if _OSK_MWC32
+ #define LSIGNAL(sig,func)       os9_signal(sig,func)
+ #else
+ #define LSIGNAL(sig,func)       signal(sig,func)
+ #endif
+ #if HAVE_SIGPROCMASK
+ #if HAVE_SIGSET_T
+ #else
+ #undef HAVE_SIGPROCMASK
+ #endif
+ #endif
+ #if HAVE_SIGPROCMASK
+ #if HAVE_SIGEMPTYSET
+ #else
+ #undef  sigemptyset
+ #define sigemptyset(mp) *(mp) = 0
+ #endif
+ #endif
  #define S_INTERRUPT     01
  #define S_STOP          02
  #define S_WINCH         04
-Line 247
+Line 404
 Line 247
 Line 404
  #define CH_CANSEEK      001
  #define CH_KEEPOPEN     002
  #define CH_POPENED      004
+ #define CH_HELPFILE     010
  #define ch_zero()       ((POSITION)0)
+ #define FAKE_HELPFILE   "@/\\less/\\help/\\file/\\@"
  #include "funcs.h"
+ /* Functions not included in funcs.h */
+ void postoa();
+ void linenumtoa();
+ void inttoa();