/* $OpenBSD: less.h,v 1.3 2001/01/29 01:58:02 niklas Exp $ */ /* * Copyright (c) 1984,1985,1989,1994,1995 Mark Nudelman * All rights reserved. * * 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 in the documentation and/or other materials provided with * the distribution. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 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. */ /* * Standard include file for "less". */ /* * Include the file of compile-time options. * The <> make cc search for it in -I., not srcdir. */ #include <defines.h> #ifdef _SEQUENT_ /* * Kludge for Sequent Dynix systems that have sigsetmask, but * it's not compatible with the way less calls it. * {{ Do other systems need this? }} */ #undef HAVE_SIGSETMASK #endif /* * Language details. */ #if HAVE_VOID #define VOID_POINTER void * #else #define VOID_POINTER char * #define void int #endif #define public /* PUBLIC FUNCTION */ /* Library function declarations */ #if HAVE_SYS_TYPES_H #include <sys/types.h> #endif #if HAVE_STDIO_H #include <stdio.h> #endif #if HAVE_FCNTL_H #include <fcntl.h> #endif #if HAVE_UNISTD_H #include <unistd.h> #endif #if HAVE_CTYPE_H #include <ctype.h> #endif #if STDC_HEADERS #include <stdlib.h> #include <string.h> #endif #if !STDC_HEADERS char *getenv(); off_t lseek(); VOID_POINTER calloc(); void free(); #endif #if !HAVE_UPPER_LOWER #define isupper(c) ((c) >= 'A' && (c) <= 'Z') #define islower(c) ((c) >= 'a' && (c) <= 'z') #define toupper(c) ((c) - 'a' + 'A') #define tolower(c) ((c) - 'A' + 'a') #endif #ifndef NULL #define NULL 0 #endif #ifndef TRUE #define TRUE 1 #endif #ifndef FALSE #define FALSE 0 #endif #define OPT_OFF 0 #define OPT_ON 1 #define OPT_ONPLUS 2 #ifndef HAVE_MEMCPY #ifndef memcpy #define memcpy(to,from,len) bcopy((from),(to),(len)) #endif #endif #define BAD_LSEEK ((off_t)-1) /* * Special types and constants. */ typedef off_t POSITION; /* * {{ Warning: if POSITION is changed to other than "long", * you may have to change some of the printfs which use "%ld" * to print a variable of type POSITION. }} */ #define NULL_POSITION ((POSITION)(-1)) /* * Flags for open() */ #if MSOFTC || OS2 #define OPEN_READ (O_RDONLY|O_BINARY) #else #define OPEN_READ (0) #endif #if MSOFTC || OS2 #define OPEN_APPEND (O_APPEND|O_WRONLY) #else #define OPEN_APPEND (1) #endif #if MSOFTC || OS2 #define OPEN_TTYIN() open("CON", O_BINARY|O_RDONLY) #else #define OPEN_TTYIN() open("/dev/tty", 0) #endif /* * An IFILE represents an input file. */ #define IFILE VOID_POINTER #define NULL_IFILE ((IFILE)NULL) /* * The structure used to represent a "screen position". * This consists of a file position, and a screen line number. * The meaning is that the line starting at the given file * position is displayed on the ln-th line of the screen. * (Screen lines before ln are empty.) */ struct scrpos { POSITION pos; int ln; }; typedef union parg { char *p_string; int p_int; } PARG; #define NULL_PARG ((PARG *)NULL) struct textlist { char *string; char *endstring; }; #define EOI (-1) #define READ_INTR (-2) /* How quiet should we be? */ #define NOT_QUIET 0 /* Ring bell at eof and for errors */ #define LITTLE_QUIET 1 /* Ring bell only for errors */ #define VERY_QUIET 2 /* Never ring bell */ /* How should we prompt? */ #define PR_SHORT 0 /* Prompt with colon */ #define PR_MEDIUM 1 /* Prompt with message */ #define PR_LONG 2 /* Prompt with longer message */ /* How should we handle backspaces? */ #define BS_SPECIAL 0 /* Do special things for underlining and bold */ #define BS_NORMAL 1 /* \b treated as normal char; actually output */ #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_BACK 0002 /* Search backward from current position */ #define SRCH_FIND_ALL 0010 /* Find and highlight all matches */ #define SRCH_NOMATCH 0100 /* Search for non-matching lines */ #define SRCH_PAST_EOF 0200 /* Search past end-of-file, into next file */ #define SRCH_FIRST_FILE 0400 /* Search starting at the first file */ #define SRCH_REVERSE(t) (((t) & SRCH_FORW) ? \ (((t) & ~SRCH_FORW) | SRCH_BACK) : \ (((t) & ~SRCH_BACK) | SRCH_FORW)) /* */ #define NO_MCA 0 #define MCA_DONE 1 #define MCA_MORE 2 #define CC_OK 0 /* Char was accepted & processed */ #define CC_QUIT 1 /* Char was a request to abort current cmd */ #define CC_ERROR 2 /* Char could not be accepted due to error */ #define CC_PASS 3 /* Char was rejected (internal) */ /* Special chars used to tell put_line() to do something special */ #define AT_NORMAL (0) #define AT_UNDERLINE (1) #define AT_BOLD (2) #define AT_BLINK (3) #define AT_INVIS (4) #define AT_STANDOUT (5) #define CONTROL(c) ((c)&037) #define ESC CONTROL('[') #define SIGNAL(sig,func) signal(sig,func) #define S_INTERRUPT 01 #define S_STOP 02 #define S_WINCH 04 #define ABORT_SIGS() (sigs & (S_INTERRUPT|S_STOP)) #define QUIT_OK 0 #define QUIT_ERROR 1 #define QUIT_SAVED_STATUS (-1) /* filestate flags */ #define CH_CANSEEK 001 #define CH_KEEPOPEN 002 #define CH_POPENED 004 #define ch_zero() ((POSITION)0) #include "funcs.h"