less.h revision 60814
10SN/A/* $FreeBSD: head/contrib/less/less.h 60814 2000-05-23 07:34:27Z ps $ */ 29330SN/A/* 30SN/A * Copyright (C) 1984-2000 Mark Nudelman 40SN/A * 50SN/A * You may distribute under the terms of either the GNU General Public 60SN/A * License or the Less License, as specified in the README file. 72362SN/A * 80SN/A * For more information about less, or for information on how to 92362SN/A * contact the author, see the README file. 100SN/A */ 110SN/A 120SN/A 130SN/A/* 140SN/A * Standard include file for "less". 150SN/A */ 160SN/A 170SN/A/* 180SN/A * Defines for MSDOS_COMPILER. 190SN/A */ 200SN/A#define MSOFTC 1 /* Microsoft C */ 212362SN/A#define BORLANDC 2 /* Borland C */ 222362SN/A#define WIN32C 3 /* Windows (Borland C or Microsoft C) */ 232362SN/A#define DJGPPC 4 /* DJGPP C */ 240SN/A 250SN/A/* 260SN/A * Include the file of compile-time options. 270SN/A * The <> make cc search for it in -I., not srcdir. 280SN/A */ 290SN/A#include <defines.h> 300SN/A 310SN/A#ifdef _SEQUENT_ 320SN/A/* 330SN/A * Kludge for Sequent Dynix systems that have sigsetmask, but 3413629Savstepan * it's not compatible with the way less calls it. 3513629Savstepan * {{ Do other systems need this? }} 360SN/A */ 3713629Savstepan#undef HAVE_SIGSETMASK 380SN/A#endif 3913629Savstepan 400SN/A/* 418565SN/A * Language details. 420SN/A */ 430SN/A#if HAVE_VOID 440SN/A#define VOID_POINTER void * 4513629Savstepan#else 4613629Savstepan#define VOID_POINTER char * 4713629Savstepan#define void int 480SN/A#endif 4913629Savstepan#if HAVE_CONST 5013629Savstepan#define constant const 510SN/A#else 520SN/A#define constant 530SN/A#endif 540SN/A 550SN/A#define public /* PUBLIC FUNCTION */ 560SN/A 570SN/A/* Library function declarations */ 580SN/A 590SN/A#if HAVE_SYS_TYPES_H 600SN/A#include <sys/types.h> 610SN/A#endif 620SN/A#if HAVE_STDIO_H 630SN/A#include <stdio.h> 640SN/A#endif 6513629Savstepan#if HAVE_FCNTL_H 660SN/A#include <fcntl.h> 670SN/A#endif 680SN/A#if HAVE_UNISTD_H 690SN/A#include <unistd.h> 700SN/A#endif 710SN/A#if HAVE_CTYPE_H 720SN/A#include <ctype.h> 730SN/A#endif 748565SN/A#if HAVE_STDLIB_H 750SN/A#include <stdlib.h> 760SN/A#endif 770SN/A#if HAVE_STRING_H 780SN/A#include <string.h> 790SN/A#endif 800SN/A#ifdef _OSK 810SN/A#include <modes.h> 820SN/A#include <strings.h> 838565SN/A#endif 840SN/A#if MSDOS_COMPILER==WIN32C 850SN/A#include <io.h> 860SN/A#endif 870SN/A#if MSDOS_COMPILER==DJGPPC 880SN/A#include <io.h> 890SN/A#include <sys/exceptn.h> 900SN/A#include <conio.h> 9113629Savstepan#include <pc.h> 9213629Savstepan#endif 9313629Savstepan 9413629Savstepan#if !HAVE_STDLIB_H 9513629Savstepanchar *getenv(); 960SN/Aoff_t lseek(); 9713629SavstepanVOID_POINTER calloc(); 980SN/Avoid free(); 9913629Savstepan#endif 1000SN/A 1010SN/A/* 1020SN/A * Simple lowercase test which can be used during option processing 1030SN/A * (before options are parsed which might tell us what charset to use). 1040SN/A */ 1050SN/A#define SIMPLE_IS_UPPER(c) ((c) >= 'A' && (c) <= 'Z') 1060SN/A#define SIMPLE_IS_LOWER(c) ((c) >= 'a' && (c) <= 'z') 1070SN/A#define SIMPLE_TO_UPPER(c) ((c) - 'a' + 'A') 1080SN/A#define SIMPLE_TO_LOWER(c) ((c) - 'A' + 'a') 1090SN/A 1100SN/A#if !HAVE_UPPER_LOWER 1110SN/A#define isupper(c) SIMPLE_IS_UPPER(c) 11213629Savstepan#define islower(c) SIMPLE_IS_LOWER(c) 11313629Savstepan#define toupper(c) SIMPLE_TO_UPPER(c) 1140SN/A#define tolower(c) SIMPLE_TO_LOWER(c) 1150SN/A#endif 11613629Savstepan 1170SN/A#ifndef NULL 1180SN/A#define NULL 0 1190SN/A#endif 12013629Savstepan 1210SN/A#ifndef TRUE 1220SN/A#define TRUE 1 1230SN/A#endif 1240SN/A#ifndef FALSE 1250SN/A#define FALSE 0 1260SN/A#endif 1270SN/A 1280SN/A#define OPT_OFF 0 1290SN/A#define OPT_ON 1 1300SN/A#define OPT_ONPLUS 2 1310SN/A 13213629Savstepan#if !HAVE_MEMCPY 1330SN/A#ifndef memcpy 1349551SN/A#define memcpy(to,from,len) bcopy((from),(to),(len)) 13513629Savstepan#endif 1360SN/A#endif 1370SN/A 1380SN/A#define BAD_LSEEK ((off_t)-1) 1390SN/A 1400SN/A/* 1410SN/A * Special types and constants. 1420SN/A */ 14313629Savstepantypedef off_t POSITION; 1448565SN/A#define PR_POSITION "%lld" 14513629Savstepan#define MAX_PRINT_POSITION 20 1460SN/A#define MAX_PRINT_INT 10 1470SN/A 14813629Savstepan#define NULL_POSITION ((POSITION)(-1)) 14913629Savstepan 1500SN/A/* 1510SN/A * Flags for open() 1520SN/A */ 1530SN/A#if MSDOS_COMPILER || OS2 1540SN/A#define OPEN_READ (O_RDONLY|O_BINARY) 1550SN/A#else 1560SN/A#ifdef _OSK 1570SN/A#define OPEN_READ (S_IREAD) 1580SN/A#else 1590SN/A#ifdef O_RDONLY 1600SN/A#define OPEN_READ (O_RDONLY) 1610SN/A#else 1628565SN/A#define OPEN_READ (0) 1630SN/A#endif 1640SN/A#endif 1650SN/A#endif 1660SN/A 1670SN/A#if defined(O_WRONLY) && defined(O_APPEND) 1680SN/A#define OPEN_APPEND (O_APPEND|O_WRONLY) 1690SN/A#else 1700SN/A#ifdef _OSK 1710SN/A#define OPEN_APPEND (S_IWRITE) 1720SN/A#else 1730SN/A#define OPEN_APPEND (1) 1740SN/A#endif 1758565SN/A#endif 1760SN/A 1770SN/A/* 1780SN/A * Set a file descriptor to binary mode. 1790SN/A */ 1800SN/A#if MSDOS_COMPILER==MSOFTC 1810SN/A#define SET_BINARY(f) _setmode(f, _O_BINARY); 1820SN/A#else 1830SN/A#if MSDOS_COMPILER 1840SN/A#define SET_BINARY(f) setmode(f, O_BINARY) 1850SN/A#else 186#define SET_BINARY(f) 187#endif 188#endif 189 190/* 191 * Does the shell treat "?" as a metacharacter? 192 */ 193#if MSDOS_COMPILER || OS2 || _OSK 194#define SHELL_META_QUEST 0 195#else 196#define SHELL_META_QUEST 1 197#endif 198 199#define SPACES_IN_FILENAMES 1 200 201/* 202 * An IFILE represents an input file. 203 */ 204#define IFILE VOID_POINTER 205#define NULL_IFILE ((IFILE)NULL) 206 207/* 208 * The structure used to represent a "screen position". 209 * This consists of a file position, and a screen line number. 210 * The meaning is that the line starting at the given file 211 * position is displayed on the ln-th line of the screen. 212 * (Screen lines before ln are empty.) 213 */ 214struct scrpos 215{ 216 POSITION pos; 217 int ln; 218}; 219 220typedef union parg 221{ 222 char *p_string; 223 int p_int; 224} PARG; 225 226#define NULL_PARG ((PARG *)NULL) 227 228struct textlist 229{ 230 char *string; 231 char *endstring; 232}; 233 234#define EOI (-1) 235 236#define READ_INTR (-2) 237 238/* How quiet should we be? */ 239#define NOT_QUIET 0 /* Ring bell at eof and for errors */ 240#define LITTLE_QUIET 1 /* Ring bell only for errors */ 241#define VERY_QUIET 2 /* Never ring bell */ 242 243/* How should we prompt? */ 244#define PR_SHORT 0 /* Prompt with colon */ 245#define PR_MEDIUM 1 /* Prompt with message */ 246#define PR_LONG 2 /* Prompt with longer message */ 247 248/* How should we handle backspaces? */ 249#define BS_SPECIAL 0 /* Do special things for underlining and bold */ 250#define BS_NORMAL 1 /* \b treated as normal char; actually output */ 251#define BS_CONTROL 2 /* \b treated as control char; prints as ^H */ 252 253/* How should we search? */ 254#define SRCH_FORW 000001 /* Search forward from current position */ 255#define SRCH_BACK 000002 /* Search backward from current position */ 256#define SRCH_NO_MOVE 000004 /* Highlight, but don't move */ 257#define SRCH_FIND_ALL 000010 /* Find and highlight all matches */ 258#define SRCH_NO_MATCH 000100 /* Search for non-matching lines */ 259#define SRCH_PAST_EOF 000200 /* Search past end-of-file, into next file */ 260#define SRCH_FIRST_FILE 000400 /* Search starting at the first file */ 261#define SRCH_NO_REGEX 001000 /* Don't use regular expressions */ 262 263#define SRCH_REVERSE(t) (((t) & SRCH_FORW) ? \ 264 (((t) & ~SRCH_FORW) | SRCH_BACK) : \ 265 (((t) & ~SRCH_BACK) | SRCH_FORW)) 266 267/* */ 268#define NO_MCA 0 269#define MCA_DONE 1 270#define MCA_MORE 2 271 272#define CC_OK 0 /* Char was accepted & processed */ 273#define CC_QUIT 1 /* Char was a request to abort current cmd */ 274#define CC_ERROR 2 /* Char could not be accepted due to error */ 275#define CC_PASS 3 /* Char was rejected (internal) */ 276 277#define CF_QUIT_ON_ERASE 0001 /* Abort cmd if its entirely erased */ 278 279/* Special chars used to tell put_line() to do something special */ 280#define AT_NORMAL (0) 281#define AT_UNDERLINE (1) 282#define AT_BOLD (2) 283#define AT_BLINK (3) 284#define AT_INVIS (4) 285#define AT_STANDOUT (5) 286 287#if IS_EBCDIC_HOST 288/* 289 * Long definition for EBCDIC. 290 * Since the argument is usually a constant, this macro normally compiles 291 * into a constant. 292 */ 293#define CONTROL(c) ( \ 294 (c)=='[' ? '\047' : \ 295 (c)=='a' ? '\001' : \ 296 (c)=='b' ? '\002' : \ 297 (c)=='c' ? '\003' : \ 298 (c)=='d' ? '\067' : \ 299 (c)=='e' ? '\055' : \ 300 (c)=='f' ? '\056' : \ 301 (c)=='g' ? '\057' : \ 302 (c)=='h' ? '\026' : \ 303 (c)=='i' ? '\005' : \ 304 (c)=='j' ? '\025' : \ 305 (c)=='k' ? '\013' : \ 306 (c)=='l' ? '\014' : \ 307 (c)=='m' ? '\015' : \ 308 (c)=='n' ? '\016' : \ 309 (c)=='o' ? '\017' : \ 310 (c)=='p' ? '\020' : \ 311 (c)=='q' ? '\021' : \ 312 (c)=='r' ? '\022' : \ 313 (c)=='s' ? '\023' : \ 314 (c)=='t' ? '\074' : \ 315 (c)=='u' ? '\075' : \ 316 (c)=='v' ? '\062' : \ 317 (c)=='w' ? '\046' : \ 318 (c)=='x' ? '\030' : \ 319 (c)=='y' ? '\031' : \ 320 (c)=='z' ? '\077' : \ 321 (c)=='A' ? '\001' : \ 322 (c)=='B' ? '\002' : \ 323 (c)=='C' ? '\003' : \ 324 (c)=='D' ? '\067' : \ 325 (c)=='E' ? '\055' : \ 326 (c)=='F' ? '\056' : \ 327 (c)=='G' ? '\057' : \ 328 (c)=='H' ? '\026' : \ 329 (c)=='I' ? '\005' : \ 330 (c)=='J' ? '\025' : \ 331 (c)=='K' ? '\013' : \ 332 (c)=='L' ? '\014' : \ 333 (c)=='M' ? '\015' : \ 334 (c)=='N' ? '\016' : \ 335 (c)=='O' ? '\017' : \ 336 (c)=='P' ? '\020' : \ 337 (c)=='Q' ? '\021' : \ 338 (c)=='R' ? '\022' : \ 339 (c)=='S' ? '\023' : \ 340 (c)=='T' ? '\074' : \ 341 (c)=='U' ? '\075' : \ 342 (c)=='V' ? '\062' : \ 343 (c)=='W' ? '\046' : \ 344 (c)=='X' ? '\030' : \ 345 (c)=='Y' ? '\031' : \ 346 (c)=='Z' ? '\077' : \ 347 (c)=='|' ? '\031' : \ 348 (c)=='\\' ? '\034' : \ 349 (c)=='^' ? '\036' : \ 350 (c)&077) 351#else 352#define CONTROL(c) ((c)&037) 353#endif /* IS_EBCDIC_HOST */ 354 355#define ESC CONTROL('[') 356 357#if _OSK_MWC32 358#define LSIGNAL(sig,func) os9_signal(sig,func) 359#else 360#define LSIGNAL(sig,func) signal(sig,func) 361#endif 362 363#define S_INTERRUPT 01 364#define S_STOP 02 365#define S_WINCH 04 366#define ABORT_SIGS() (sigs & (S_INTERRUPT|S_STOP)) 367 368#define QUIT_OK 0 369#define QUIT_ERROR 1 370#define QUIT_SAVED_STATUS (-1) 371 372/* filestate flags */ 373#define CH_CANSEEK 001 374#define CH_KEEPOPEN 002 375#define CH_POPENED 004 376#define CH_HELPFILE 010 377 378#define ch_zero() ((POSITION)0) 379 380#define FAKE_HELPFILE "@/\\less/\\help/\\file/\\@" 381 382#include "funcs.h" 383 384