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1/* $FreeBSD: head/contrib/less/less.h 195941 2009-07-29 09:20:32Z delphij $ */	1/* $FreeBSD: head/contrib/less/less.h 221715 2011-05-09 21:51:59Z delphij $ */
2/*	2/*
3 * Copyright (C) 1984-2009 Mark Nudelman	3 * Copyright (C) 1984-2011 Mark Nudelman
4 * 5 * You may distribute under the terms of either the GNU General Public 6 * License or the Less License, as specified in the README file. 7 * 8 * For more information about less, or for information on how to 9 * contact the author, see the README file. 10 / 11 12#define NEWBOT 1 13 14/ 15 * Standard include file for "less". 16 / 17 18/ 19 * Defines for MSDOS_COMPILER. 20 / 21#define MSOFTC 1 / Microsoft C / 22#define BORLANDC 2 / Borland C / 23#define WIN32C 3 / Windows (Borland C or Microsoft C) / 24#define DJGPPC 4 / DJGPP C / 25 26/ 27 * Include the file of compile-time options. 28 * The <> make cc search for it in -I., not srcdir. 29 / 30#include <defines.h> 31 32#ifdef _SEQUENT_ 33/ 34 * Kludge for Sequent Dynix systems that have sigsetmask, but 35 * it's not compatible with the way less calls it. 36 * {{ Do other systems need this? }} 37 / 38#undef HAVE_SIGSETMASK 39#endif 40 41/ 42 * Language details. 43 / 44#if HAVE_VOID 45#define VOID_POINTER void 46#else 47#define VOID_POINTER char * 48#define void int 49#endif 50#if HAVE_CONST 51#define constant const 52#else 53#define constant 54#endif 55 56#define public /* PUBLIC FUNCTION / 57 58/ Library function declarations / 59 60#if HAVE_SYS_TYPES_H 61#include <sys/types.h> 62#endif 63#if HAVE_STDIO_H 64#include <stdio.h> 65#endif 66#if HAVE_FCNTL_H 67#include <fcntl.h> 68#endif 69#if HAVE_UNISTD_H 70#include <unistd.h> 71#endif 72#if HAVE_CTYPE_H 73#include <ctype.h> 74#endif 75#if HAVE_WCTYPE_H 76#include <wctype.h> 77#endif 78#if HAVE_LIMITS_H 79#include <limits.h> 80#endif 81#if HAVE_STDLIB_H 82#include <stdlib.h> 83#endif 84#if HAVE_STRING_H 85#include <string.h> 86#endif 87 88/ OS-specific includes / 89#ifdef _OSK 90#include <modes.h> 91#include <strings.h> 92#endif 93 94#ifdef __TANDEM 95#include <floss.h> 96#endif 97 98#if MSDOS_COMPILER==WIN32C \|\| OS2 99#include <io.h> 100#endif 101* 102#if MSDOS_COMPILER==DJGPPC 103#include <io.h> 104#include <sys/exceptn.h> 105#include <conio.h> 106#include <pc.h> 107#endif 108 109#if !HAVE_STDLIB_H 110char getenv(); 111off_t lseek(); 112VOID_POINTER calloc(); 113void free(); 114#endif 115* 116/* 117 * Simple lowercase test which can be used during option processing 118 * (before options are parsed which might tell us what charset to use). 119 / 120#define ASCII_IS_UPPER(c) ((c) >= 'A' && (c) <= 'Z') 121#define ASCII_IS_LOWER(c) ((c) >= 'a' && (c) <= 'z') 122#define ASCII_TO_UPPER(c) ((c) - 'a' + 'A') 123#define ASCII_TO_LOWER(c) ((c) - 'A' + 'a') 124* 125#undef IS_UPPER 126#undef IS_LOWER 127#undef TO_UPPER 128#undef TO_LOWER 129#undef IS_SPACE 130#undef IS_DIGIT 131 132#if HAVE_WCTYPE 133#define IS_UPPER(c) iswupper(c) 134#define IS_LOWER(c) iswlower(c) 135#define TO_UPPER(c) towupper(c) 136#define TO_LOWER(c) towlower(c) 137#else 138#if HAVE_UPPER_LOWER 139#define IS_UPPER(c) isupper((unsigned char) (c)) 140#define IS_LOWER(c) islower((unsigned char) (c)) 141#define TO_UPPER(c) toupper((unsigned char) (c)) 142#define TO_LOWER(c) tolower((unsigned char) (c)) 143#else 144#define IS_UPPER(c) ASCII_IS_UPPER(c) 145#define IS_LOWER(c) ASCII_IS_LOWER(c) 146#define TO_UPPER(c) ASCII_TO_UPPER(c) 147#define TO_LOWER(c) ASCII_TO_LOWER(c) 148#endif 149#endif 150 151#ifdef isspace 152#define IS_SPACE(c) isspace((unsigned char)(c)) 153#else 154#define IS_SPACE(c) ((c) == ' ' \|\| (c) == '\t' \|\| (c) == '\n' \|\| (c) == '\r' \|\| (c) == '\f') 155#endif 156 157#ifdef isdigit 158#define IS_DIGIT(c) isdigit((unsigned char)(c)) 159#else 160#define IS_DIGIT(c) ((c) >= '0' && (c) <= '9') 161#endif 162 163#define IS_CSI_START(c) (((LWCHAR)(c)) == ESC \|\| (((LWCHAR)(c)) == CSI)) 164 165#ifndef NULL 166#define NULL 0 167#endif 168 169#ifndef TRUE 170#define TRUE 1 171#endif 172#ifndef FALSE 173#define FALSE 0 174#endif 175 176#define OPT_OFF 0 177#define OPT_ON 1 178#define OPT_ONPLUS 2 179 180#if !HAVE_MEMCPY 181#ifndef memcpy 182#define memcpy(to,from,len) bcopy((from),(to),(len)) 183#endif 184#endif 185 186#if HAVE_SNPRINTF 187#define SNPRINTF1(str, size, fmt, v1) snprintf((str), (size), (fmt), (v1)) 188#define SNPRINTF2(str, size, fmt, v1, v2) snprintf((str), (size), (fmt), (v1), (v2)) 189#define SNPRINTF3(str, size, fmt, v1, v2, v3) snprintf((str), (size), (fmt), (v1), (v2), (v3)) 190#define SNPRINTF4(str, size, fmt, v1, v2, v3, v4) snprintf((str), (size), (fmt), (v1), (v2), (v3), (v4)) 191#else 192/* Use unsafe sprintf if we don't have snprintf. / 193#define SNPRINTF1(str, size, fmt, v1) sprintf((str), (fmt), (v1)) 194#define SNPRINTF2(str, size, fmt, v1, v2) sprintf((str), (fmt), (v1), (v2)) 195#define SNPRINTF3(str, size, fmt, v1, v2, v3) sprintf((str), (fmt), (v1), (v2), (v3)) 196#define SNPRINTF4(str, size, fmt, v1, v2, v3, v4) sprintf((str), (fmt), (v1), (v2), (v3), (v4)) 197#endif 198* 199#define BAD_LSEEK ((off_t)-1) 200 201#ifndef SEEK_SET 202#define SEEK_SET 0 203#endif 204#ifndef SEEK_END 205#define SEEK_END 2 206#endif 207 208#ifndef CHAR_BIT 209#define CHAR_BIT 8 210#endif 211 212/* 213 * Upper bound on the string length of an integer converted to string. 214 * 302 / 1000 is ceil (log10 (2.0)). Subtract 1 for the sign bit; 215 * add 1 for integer division truncation; add 1 more for a minus sign. 216 / 217#define INT_STRLEN_BOUND(t) ((sizeof(t) CHAR_BIT - 1) * 302 / 1000 + 1 + 1) 218 219/* 220 * Special types and constants. 221 / 222typedef unsigned long LWCHAR; 223typedef off_t POSITION; 224typedef off_t LINENUM; 225#define MIN_LINENUM_WIDTH 7 / Min printing width of a line number / 226#define MAX_UTF_CHAR_LEN 6 / Max bytes in one UTF-8 char / 227* 228#define NULL_POSITION ((POSITION)(-1)) 229 230/* 231 * Flags for open() 232 / 233#if MSDOS_COMPILER \|\| OS2 234#define OPEN_READ (O_RDONLY\|O_BINARY) 235#else 236#ifdef _OSK 237#define OPEN_READ (S_IREAD) 238#else 239#ifdef O_RDONLY 240#define OPEN_READ (O_RDONLY) 241#else 242#define OPEN_READ (0) 243#endif 244#endif 245#endif 246* 247#if defined(O_WRONLY) && defined(O_APPEND) 248#define OPEN_APPEND (O_APPEND\|O_WRONLY) 249#else 250#ifdef _OSK 251#define OPEN_APPEND (S_IWRITE) 252#else 253#define OPEN_APPEND (1) 254#endif 255#endif 256 257/* 258 * Set a file descriptor to binary mode. 259 / 260#if MSDOS_COMPILER==MSOFTC 261#define SET_BINARY(f) _setmode(f, _O_BINARY); 262#else 263#if MSDOS_COMPILER \|\| OS2 264#define SET_BINARY(f) setmode(f, O_BINARY) 265#else 266#define SET_BINARY(f) 267#endif 268#endif 269* 270/* 271 * Does the shell treat "?" as a metacharacter? 272 / 273#if MSDOS_COMPILER \|\| OS2 \|\| _OSK 274#define SHELL_META_QUEST 0 275#else 276#define SHELL_META_QUEST 1 277#endif 278* 279#define SPACES_IN_FILENAMES 1 280 281/* 282 * An IFILE represents an input file. 283 / 284#define IFILE VOID_POINTER 285#define NULL_IFILE ((IFILE)NULL) 286* 287/* 288 * The structure used to represent a "screen position". 289 * This consists of a file position, and a screen line number. 290 * The meaning is that the line starting at the given file 291 * position is displayed on the ln-th line of the screen. 292 * (Screen lines before ln are empty.) 293 / 294struct scrpos 295{ 296* POSITION pos; 297 int ln; 298}; 299 300typedef union parg 301{ 302 char p_string; 303* int p_int; 304 LINENUM p_linenum; 305} PARG; 306 307#define NULL_PARG ((PARG )NULL) 308* 309struct textlist 310{ 311 char string; 312* char endstring; 313}; 314* 315#define EOI (-1) 316 317#define READ_INTR (-2) 318 319/* A fraction is represented by an int n; the fraction is n/NUM_FRAC_DENOM / 320#define NUM_FRAC_DENOM 1000000 321#define NUM_LOG_FRAC_DENOM 6 322* 323/* How quiet should we be? / 324#define NOT_QUIET 0 / Ring bell at eof and for errors / 325#define LITTLE_QUIET 1 / Ring bell only for errors / 326#define VERY_QUIET 2 / Never ring bell / 327* 328/* How should we prompt? / 329#define PR_SHORT 0 / Prompt with colon / 330#define PR_MEDIUM 1 / Prompt with message / 331#define PR_LONG 2 / Prompt with longer message / 332* 333/* How should we handle backspaces? / 334#define BS_SPECIAL 0 / Do special things for underlining and bold / 335#define BS_NORMAL 1 / \b treated as normal char; actually output / 336#define BS_CONTROL 2 / \b treated as control char; prints as ^H / 337* 338/* How should we search? / 339#define SRCH_FORW (1 << 0) / Search forward from current position / 340#define SRCH_BACK (1 << 1) / Search backward from current position / 341#define SRCH_NO_MOVE (1 << 2) / Highlight, but don't move / 342#define SRCH_FIND_ALL (1 << 4) / Find and highlight all matches / 343#define SRCH_NO_MATCH (1 << 8) / Search for non-matching lines / 344#define SRCH_PAST_EOF (1 << 9) / Search past end-of-file, into next file / 345#define SRCH_FIRST_FILE (1 << 10) / Search starting at the first file / 346#define SRCH_NO_REGEX (1 << 12) / Don't use regular expressions / 347#define SRCH_FILTER (1 << 13) / Search is for '&' (filter) command */	4 * 5 * You may distribute under the terms of either the GNU General Public 6 * License or the Less License, as specified in the README file. 7 * 8 * For more information about less, or for information on how to 9 * contact the author, see the README file. 10 / 11 12#define NEWBOT 1 13 14/ 15 * Standard include file for "less". 16 / 17 18/ 19 * Defines for MSDOS_COMPILER. 20 / 21#define MSOFTC 1 / Microsoft C / 22#define BORLANDC 2 / Borland C / 23#define WIN32C 3 / Windows (Borland C or Microsoft C) / 24#define DJGPPC 4 / DJGPP C / 25 26/ 27 * Include the file of compile-time options. 28 * The <> make cc search for it in -I., not srcdir. 29 / 30#include <defines.h> 31 32#ifdef _SEQUENT_ 33/ 34 * Kludge for Sequent Dynix systems that have sigsetmask, but 35 * it's not compatible with the way less calls it. 36 * {{ Do other systems need this? }} 37 / 38#undef HAVE_SIGSETMASK 39#endif 40 41/ 42 * Language details. 43 / 44#if HAVE_VOID 45#define VOID_POINTER void 46#else 47#define VOID_POINTER char * 48#define void int 49#endif 50#if HAVE_CONST 51#define constant const 52#else 53#define constant 54#endif 55 56#define public /* PUBLIC FUNCTION / 57 58/ Library function declarations / 59 60#if HAVE_SYS_TYPES_H 61#include <sys/types.h> 62#endif 63#if HAVE_STDIO_H 64#include <stdio.h> 65#endif 66#if HAVE_FCNTL_H 67#include <fcntl.h> 68#endif 69#if HAVE_UNISTD_H 70#include <unistd.h> 71#endif 72#if HAVE_CTYPE_H 73#include <ctype.h> 74#endif 75#if HAVE_WCTYPE_H 76#include <wctype.h> 77#endif 78#if HAVE_LIMITS_H 79#include <limits.h> 80#endif 81#if HAVE_STDLIB_H 82#include <stdlib.h> 83#endif 84#if HAVE_STRING_H 85#include <string.h> 86#endif 87 88/ OS-specific includes / 89#ifdef _OSK 90#include <modes.h> 91#include <strings.h> 92#endif 93 94#ifdef __TANDEM 95#include <floss.h> 96#endif 97 98#if MSDOS_COMPILER==WIN32C \|\| OS2 99#include <io.h> 100#endif 101* 102#if MSDOS_COMPILER==DJGPPC 103#include <io.h> 104#include <sys/exceptn.h> 105#include <conio.h> 106#include <pc.h> 107#endif 108 109#if !HAVE_STDLIB_H 110char getenv(); 111off_t lseek(); 112VOID_POINTER calloc(); 113void free(); 114#endif 115* 116/* 117 * Simple lowercase test which can be used during option processing 118 * (before options are parsed which might tell us what charset to use). 119 / 120#define ASCII_IS_UPPER(c) ((c) >= 'A' && (c) <= 'Z') 121#define ASCII_IS_LOWER(c) ((c) >= 'a' && (c) <= 'z') 122#define ASCII_TO_UPPER(c) ((c) - 'a' + 'A') 123#define ASCII_TO_LOWER(c) ((c) - 'A' + 'a') 124* 125#undef IS_UPPER 126#undef IS_LOWER 127#undef TO_UPPER 128#undef TO_LOWER 129#undef IS_SPACE 130#undef IS_DIGIT 131 132#if HAVE_WCTYPE 133#define IS_UPPER(c) iswupper(c) 134#define IS_LOWER(c) iswlower(c) 135#define TO_UPPER(c) towupper(c) 136#define TO_LOWER(c) towlower(c) 137#else 138#if HAVE_UPPER_LOWER 139#define IS_UPPER(c) isupper((unsigned char) (c)) 140#define IS_LOWER(c) islower((unsigned char) (c)) 141#define TO_UPPER(c) toupper((unsigned char) (c)) 142#define TO_LOWER(c) tolower((unsigned char) (c)) 143#else 144#define IS_UPPER(c) ASCII_IS_UPPER(c) 145#define IS_LOWER(c) ASCII_IS_LOWER(c) 146#define TO_UPPER(c) ASCII_TO_UPPER(c) 147#define TO_LOWER(c) ASCII_TO_LOWER(c) 148#endif 149#endif 150 151#ifdef isspace 152#define IS_SPACE(c) isspace((unsigned char)(c)) 153#else 154#define IS_SPACE(c) ((c) == ' ' \|\| (c) == '\t' \|\| (c) == '\n' \|\| (c) == '\r' \|\| (c) == '\f') 155#endif 156 157#ifdef isdigit 158#define IS_DIGIT(c) isdigit((unsigned char)(c)) 159#else 160#define IS_DIGIT(c) ((c) >= '0' && (c) <= '9') 161#endif 162 163#define IS_CSI_START(c) (((LWCHAR)(c)) == ESC \|\| (((LWCHAR)(c)) == CSI)) 164 165#ifndef NULL 166#define NULL 0 167#endif 168 169#ifndef TRUE 170#define TRUE 1 171#endif 172#ifndef FALSE 173#define FALSE 0 174#endif 175 176#define OPT_OFF 0 177#define OPT_ON 1 178#define OPT_ONPLUS 2 179 180#if !HAVE_MEMCPY 181#ifndef memcpy 182#define memcpy(to,from,len) bcopy((from),(to),(len)) 183#endif 184#endif 185 186#if HAVE_SNPRINTF 187#define SNPRINTF1(str, size, fmt, v1) snprintf((str), (size), (fmt), (v1)) 188#define SNPRINTF2(str, size, fmt, v1, v2) snprintf((str), (size), (fmt), (v1), (v2)) 189#define SNPRINTF3(str, size, fmt, v1, v2, v3) snprintf((str), (size), (fmt), (v1), (v2), (v3)) 190#define SNPRINTF4(str, size, fmt, v1, v2, v3, v4) snprintf((str), (size), (fmt), (v1), (v2), (v3), (v4)) 191#else 192/* Use unsafe sprintf if we don't have snprintf. / 193#define SNPRINTF1(str, size, fmt, v1) sprintf((str), (fmt), (v1)) 194#define SNPRINTF2(str, size, fmt, v1, v2) sprintf((str), (fmt), (v1), (v2)) 195#define SNPRINTF3(str, size, fmt, v1, v2, v3) sprintf((str), (fmt), (v1), (v2), (v3)) 196#define SNPRINTF4(str, size, fmt, v1, v2, v3, v4) sprintf((str), (fmt), (v1), (v2), (v3), (v4)) 197#endif 198* 199#define BAD_LSEEK ((off_t)-1) 200 201#ifndef SEEK_SET 202#define SEEK_SET 0 203#endif 204#ifndef SEEK_END 205#define SEEK_END 2 206#endif 207 208#ifndef CHAR_BIT 209#define CHAR_BIT 8 210#endif 211 212/* 213 * Upper bound on the string length of an integer converted to string. 214 * 302 / 1000 is ceil (log10 (2.0)). Subtract 1 for the sign bit; 215 * add 1 for integer division truncation; add 1 more for a minus sign. 216 / 217#define INT_STRLEN_BOUND(t) ((sizeof(t) CHAR_BIT - 1) * 302 / 1000 + 1 + 1) 218 219/* 220 * Special types and constants. 221 / 222typedef unsigned long LWCHAR; 223typedef off_t POSITION; 224typedef off_t LINENUM; 225#define MIN_LINENUM_WIDTH 7 / Min printing width of a line number / 226#define MAX_UTF_CHAR_LEN 6 / Max bytes in one UTF-8 char / 227* 228#define NULL_POSITION ((POSITION)(-1)) 229 230/* 231 * Flags for open() 232 / 233#if MSDOS_COMPILER \|\| OS2 234#define OPEN_READ (O_RDONLY\|O_BINARY) 235#else 236#ifdef _OSK 237#define OPEN_READ (S_IREAD) 238#else 239#ifdef O_RDONLY 240#define OPEN_READ (O_RDONLY) 241#else 242#define OPEN_READ (0) 243#endif 244#endif 245#endif 246* 247#if defined(O_WRONLY) && defined(O_APPEND) 248#define OPEN_APPEND (O_APPEND\|O_WRONLY) 249#else 250#ifdef _OSK 251#define OPEN_APPEND (S_IWRITE) 252#else 253#define OPEN_APPEND (1) 254#endif 255#endif 256 257/* 258 * Set a file descriptor to binary mode. 259 / 260#if MSDOS_COMPILER==MSOFTC 261#define SET_BINARY(f) _setmode(f, _O_BINARY); 262#else 263#if MSDOS_COMPILER \|\| OS2 264#define SET_BINARY(f) setmode(f, O_BINARY) 265#else 266#define SET_BINARY(f) 267#endif 268#endif 269* 270/* 271 * Does the shell treat "?" as a metacharacter? 272 / 273#if MSDOS_COMPILER \|\| OS2 \|\| _OSK 274#define SHELL_META_QUEST 0 275#else 276#define SHELL_META_QUEST 1 277#endif 278* 279#define SPACES_IN_FILENAMES 1 280 281/* 282 * An IFILE represents an input file. 283 / 284#define IFILE VOID_POINTER 285#define NULL_IFILE ((IFILE)NULL) 286* 287/* 288 * The structure used to represent a "screen position". 289 * This consists of a file position, and a screen line number. 290 * The meaning is that the line starting at the given file 291 * position is displayed on the ln-th line of the screen. 292 * (Screen lines before ln are empty.) 293 / 294struct scrpos 295{ 296* POSITION pos; 297 int ln; 298}; 299 300typedef union parg 301{ 302 char p_string; 303* int p_int; 304 LINENUM p_linenum; 305} PARG; 306 307#define NULL_PARG ((PARG )NULL) 308* 309struct textlist 310{ 311 char string; 312* char endstring; 313}; 314* 315#define EOI (-1) 316 317#define READ_INTR (-2) 318 319/* A fraction is represented by an int n; the fraction is n/NUM_FRAC_DENOM / 320#define NUM_FRAC_DENOM 1000000 321#define NUM_LOG_FRAC_DENOM 6 322* 323/* How quiet should we be? / 324#define NOT_QUIET 0 / Ring bell at eof and for errors / 325#define LITTLE_QUIET 1 / Ring bell only for errors / 326#define VERY_QUIET 2 / Never ring bell / 327* 328/* How should we prompt? / 329#define PR_SHORT 0 / Prompt with colon / 330#define PR_MEDIUM 1 / Prompt with message / 331#define PR_LONG 2 / Prompt with longer message / 332* 333/* How should we handle backspaces? / 334#define BS_SPECIAL 0 / Do special things for underlining and bold / 335#define BS_NORMAL 1 / \b treated as normal char; actually output / 336#define BS_CONTROL 2 / \b treated as control char; prints as ^H / 337* 338/* How should we search? / 339#define SRCH_FORW (1 << 0) / Search forward from current position / 340#define SRCH_BACK (1 << 1) / Search backward from current position / 341#define SRCH_NO_MOVE (1 << 2) / Highlight, but don't move / 342#define SRCH_FIND_ALL (1 << 4) / Find and highlight all matches / 343#define SRCH_NO_MATCH (1 << 8) / Search for non-matching lines / 344#define SRCH_PAST_EOF (1 << 9) / Search past end-of-file, into next file / 345#define SRCH_FIRST_FILE (1 << 10) / Search starting at the first file / 346#define SRCH_NO_REGEX (1 << 12) / Don't use regular expressions / 347#define SRCH_FILTER (1 << 13) / Search is for '&' (filter) command */
	348#define SRCH_AFTER_TARGET (1 << 14) /* Start search after the target line */
348 349#define SRCH_REVERSE(t) (((t) & SRCH_FORW) ? \ 350 (((t) & ~SRCH_FORW) \| SRCH_BACK) : \ 351 (((t) & ~SRCH_BACK) \| SRCH_FORW)) 352 353/* / 354#define NO_MCA 0 355#define MCA_DONE 1 356#define MCA_MORE 2 357* 358#define CC_OK 0 /* Char was accepted & processed / 359#define CC_QUIT 1 / Char was a request to abort current cmd / 360#define CC_ERROR 2 / Char could not be accepted due to error / 361#define CC_PASS 3 / Char was rejected (internal) / 362* 363#define CF_QUIT_ON_ERASE 0001 /* Abort cmd if its entirely erased / 364* 365/* Special char bit-flags used to tell put_line() to do something special / 366#define AT_NORMAL (0) 367#define AT_UNDERLINE (1 << 0) 368#define AT_BOLD (1 << 1) 369#define AT_BLINK (1 << 2) 370#define AT_STANDOUT (1 << 3) 371#define AT_ANSI (1 << 4) / Content-supplied "ANSI" escape sequence / 372#define AT_BINARY (1 << 5) / LESSBINFMT representation / 373#define AT_HILITE (1 << 6) /* Internal highlights (e.g., for search) / 374* 375#if '0' == 240 376#define IS_EBCDIC_HOST 1 377#endif 378 379#if IS_EBCDIC_HOST 380/* 381 * Long definition for EBCDIC. 382 * Since the argument is usually a constant, this macro normally compiles 383 * into a constant. 384 / 385#define CONTROL(c) ( \ 386* (c)=='[' ? '\047' : \ 387 (c)=='a' ? '\001' : \ 388 (c)=='b' ? '\002' : \ 389 (c)=='c' ? '\003' : \ 390 (c)=='d' ? '\067' : \ 391 (c)=='e' ? '\055' : \ 392 (c)=='f' ? '\056' : \ 393 (c)=='g' ? '\057' : \ 394 (c)=='h' ? '\026' : \ 395 (c)=='i' ? '\005' : \ 396 (c)=='j' ? '\025' : \ 397 (c)=='k' ? '\013' : \ 398 (c)=='l' ? '\014' : \ 399 (c)=='m' ? '\015' : \ 400 (c)=='n' ? '\016' : \ 401 (c)=='o' ? '\017' : \ 402 (c)=='p' ? '\020' : \ 403 (c)=='q' ? '\021' : \ 404 (c)=='r' ? '\022' : \ 405 (c)=='s' ? '\023' : \ 406 (c)=='t' ? '\074' : \ 407 (c)=='u' ? '\075' : \ 408 (c)=='v' ? '\062' : \ 409 (c)=='w' ? '\046' : \ 410 (c)=='x' ? '\030' : \ 411 (c)=='y' ? '\031' : \ 412 (c)=='z' ? '\077' : \ 413 (c)=='A' ? '\001' : \ 414 (c)=='B' ? '\002' : \ 415 (c)=='C' ? '\003' : \ 416 (c)=='D' ? '\067' : \ 417 (c)=='E' ? '\055' : \ 418 (c)=='F' ? '\056' : \ 419 (c)=='G' ? '\057' : \ 420 (c)=='H' ? '\026' : \ 421 (c)=='I' ? '\005' : \ 422 (c)=='J' ? '\025' : \ 423 (c)=='K' ? '\013' : \ 424 (c)=='L' ? '\014' : \ 425 (c)=='M' ? '\015' : \ 426 (c)=='N' ? '\016' : \ 427 (c)=='O' ? '\017' : \ 428 (c)=='P' ? '\020' : \ 429 (c)=='Q' ? '\021' : \ 430 (c)=='R' ? '\022' : \ 431 (c)=='S' ? '\023' : \ 432 (c)=='T' ? '\074' : \ 433 (c)=='U' ? '\075' : \ 434 (c)=='V' ? '\062' : \ 435 (c)=='W' ? '\046' : \ 436 (c)=='X' ? '\030' : \ 437 (c)=='Y' ? '\031' : \ 438 (c)=='Z' ? '\077' : \ 439 (c)=='\|' ? '\031' : \ 440 (c)=='\\' ? '\034' : \ 441 (c)=='^' ? '\036' : \ 442 (c)&077) 443#else 444#define CONTROL(c) ((c)&037) 445#endif /* IS_EBCDIC_HOST / 446* 447#define ESC CONTROL('[') 448#define CSI ((unsigned char)'\233') 449 450#if _OSK_MWC32 451#define LSIGNAL(sig,func) os9_signal(sig,func) 452#else 453#define LSIGNAL(sig,func) signal(sig,func) 454#endif 455 456#if HAVE_SIGPROCMASK 457#if HAVE_SIGSET_T 458#else 459#undef HAVE_SIGPROCMASK 460#endif 461#endif 462#if HAVE_SIGPROCMASK 463#if HAVE_SIGEMPTYSET 464#else 465#undef sigemptyset 466#define sigemptyset(mp) (mp) = 0 467#endif 468#endif 469* 470#define S_INTERRUPT 01 471#define S_STOP 02 472#define S_WINCH 04 473#define ABORT_SIGS() (sigs & (S_INTERRUPT\|S_STOP)) 474 475#define QUIT_OK 0 476#define QUIT_ERROR 1	349 350#define SRCH_REVERSE(t) (((t) & SRCH_FORW) ? \ 351 (((t) & ~SRCH_FORW) \| SRCH_BACK) : \ 352 (((t) & ~SRCH_BACK) \| SRCH_FORW)) 353 354/* / 355#define NO_MCA 0 356#define MCA_DONE 1 357#define MCA_MORE 2 358* 359#define CC_OK 0 /* Char was accepted & processed / 360#define CC_QUIT 1 / Char was a request to abort current cmd / 361#define CC_ERROR 2 / Char could not be accepted due to error / 362#define CC_PASS 3 / Char was rejected (internal) / 363* 364#define CF_QUIT_ON_ERASE 0001 /* Abort cmd if its entirely erased / 365* 366/* Special char bit-flags used to tell put_line() to do something special / 367#define AT_NORMAL (0) 368#define AT_UNDERLINE (1 << 0) 369#define AT_BOLD (1 << 1) 370#define AT_BLINK (1 << 2) 371#define AT_STANDOUT (1 << 3) 372#define AT_ANSI (1 << 4) / Content-supplied "ANSI" escape sequence / 373#define AT_BINARY (1 << 5) / LESSBINFMT representation / 374#define AT_HILITE (1 << 6) /* Internal highlights (e.g., for search) / 375* 376#if '0' == 240 377#define IS_EBCDIC_HOST 1 378#endif 379 380#if IS_EBCDIC_HOST 381/* 382 * Long definition for EBCDIC. 383 * Since the argument is usually a constant, this macro normally compiles 384 * into a constant. 385 / 386#define CONTROL(c) ( \ 387* (c)=='[' ? '\047' : \ 388 (c)=='a' ? '\001' : \ 389 (c)=='b' ? '\002' : \ 390 (c)=='c' ? '\003' : \ 391 (c)=='d' ? '\067' : \ 392 (c)=='e' ? '\055' : \ 393 (c)=='f' ? '\056' : \ 394 (c)=='g' ? '\057' : \ 395 (c)=='h' ? '\026' : \ 396 (c)=='i' ? '\005' : \ 397 (c)=='j' ? '\025' : \ 398 (c)=='k' ? '\013' : \ 399 (c)=='l' ? '\014' : \ 400 (c)=='m' ? '\015' : \ 401 (c)=='n' ? '\016' : \ 402 (c)=='o' ? '\017' : \ 403 (c)=='p' ? '\020' : \ 404 (c)=='q' ? '\021' : \ 405 (c)=='r' ? '\022' : \ 406 (c)=='s' ? '\023' : \ 407 (c)=='t' ? '\074' : \ 408 (c)=='u' ? '\075' : \ 409 (c)=='v' ? '\062' : \ 410 (c)=='w' ? '\046' : \ 411 (c)=='x' ? '\030' : \ 412 (c)=='y' ? '\031' : \ 413 (c)=='z' ? '\077' : \ 414 (c)=='A' ? '\001' : \ 415 (c)=='B' ? '\002' : \ 416 (c)=='C' ? '\003' : \ 417 (c)=='D' ? '\067' : \ 418 (c)=='E' ? '\055' : \ 419 (c)=='F' ? '\056' : \ 420 (c)=='G' ? '\057' : \ 421 (c)=='H' ? '\026' : \ 422 (c)=='I' ? '\005' : \ 423 (c)=='J' ? '\025' : \ 424 (c)=='K' ? '\013' : \ 425 (c)=='L' ? '\014' : \ 426 (c)=='M' ? '\015' : \ 427 (c)=='N' ? '\016' : \ 428 (c)=='O' ? '\017' : \ 429 (c)=='P' ? '\020' : \ 430 (c)=='Q' ? '\021' : \ 431 (c)=='R' ? '\022' : \ 432 (c)=='S' ? '\023' : \ 433 (c)=='T' ? '\074' : \ 434 (c)=='U' ? '\075' : \ 435 (c)=='V' ? '\062' : \ 436 (c)=='W' ? '\046' : \ 437 (c)=='X' ? '\030' : \ 438 (c)=='Y' ? '\031' : \ 439 (c)=='Z' ? '\077' : \ 440 (c)=='\|' ? '\031' : \ 441 (c)=='\\' ? '\034' : \ 442 (c)=='^' ? '\036' : \ 443 (c)&077) 444#else 445#define CONTROL(c) ((c)&037) 446#endif /* IS_EBCDIC_HOST / 447* 448#define ESC CONTROL('[') 449#define CSI ((unsigned char)'\233') 450 451#if _OSK_MWC32 452#define LSIGNAL(sig,func) os9_signal(sig,func) 453#else 454#define LSIGNAL(sig,func) signal(sig,func) 455#endif 456 457#if HAVE_SIGPROCMASK 458#if HAVE_SIGSET_T 459#else 460#undef HAVE_SIGPROCMASK 461#endif 462#endif 463#if HAVE_SIGPROCMASK 464#if HAVE_SIGEMPTYSET 465#else 466#undef sigemptyset 467#define sigemptyset(mp) (mp) = 0 468#endif 469#endif 470* 471#define S_INTERRUPT 01 472#define S_STOP 02 473#define S_WINCH 04 474#define ABORT_SIGS() (sigs & (S_INTERRUPT\|S_STOP)) 475 476#define QUIT_OK 0 477#define QUIT_ERROR 1
	478#define QUIT_INTERRUPT 2
477#define QUIT_SAVED_STATUS (-1) 478 479#define FOLLOW_DESC 0 480#define FOLLOW_NAME 1 481 482/* filestate flags / 483#define CH_CANSEEK 001 484#define CH_KEEPOPEN 002 485#define CH_POPENED 004 486#define CH_HELPFILE 010 487* 488#define ch_zero() ((POSITION)0) 489 490#define FAKE_HELPFILE "@/\\less/\\help/\\file/\\@" 491 492/* Flags for cvt_text / 493#define CVT_TO_LC 01 / Convert upper-case to lower-case / 494#define CVT_BS 02 / Do backspace processing / 495#define CVT_CRLF 04 / Remove CR after LF / 496#define CVT_ANSI 010 / Remove ANSI escape sequences / 497* 498#include "funcs.h" 499 500/* Functions not included in funcs.h / 501void postoa(); 502void linenumtoa(); 503*void inttoa();	479#define QUIT_SAVED_STATUS (-1) 480 481#define FOLLOW_DESC 0 482#define FOLLOW_NAME 1 483 484/* filestate flags / 485#define CH_CANSEEK 001 486#define CH_KEEPOPEN 002 487#define CH_POPENED 004 488#define CH_HELPFILE 010 489* 490#define ch_zero() ((POSITION)0) 491 492#define FAKE_HELPFILE "@/\\less/\\help/\\file/\\@" 493 494/* Flags for cvt_text / 495#define CVT_TO_LC 01 / Convert upper-case to lower-case / 496#define CVT_BS 02 / Do backspace processing / 497#define CVT_CRLF 04 / Remove CR after LF / 498#define CVT_ANSI 010 / Remove ANSI escape sequences / 499* 500#include "funcs.h" 501 502/* Functions not included in funcs.h / 503void postoa(); 504void linenumtoa(); 505*void inttoa();