diff options
Diffstat (limited to 'less.h')
| -rw-r--r-- | less.h | 419 |
1 files changed, 227 insertions, 192 deletions
@@ -1,5 +1,5 @@ /* - * Copyright (C) 1984-2020 Mark Nudelman + * Copyright (C) 1984-2021 Mark Nudelman * * You may distribute under the terms of either the GNU General Public * License or the Less License, as specified in the README file. @@ -16,10 +16,10 @@ /* * 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 */ +#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. @@ -45,20 +45,20 @@ #define LESSPARAMS(a) () #endif #if HAVE_VOID -#define VOID_POINTER void * -#define VOID_PARAM void +#define VOID_POINTER void * +#define VOID_PARAM void #else -#define VOID_POINTER char * -#define VOID_PARAM -#define void int +#define VOID_POINTER char * +#define VOID_PARAM +#define void int #endif #if HAVE_CONST -#define constant const +#define constant const #else -#define constant +#define constant #endif -#define public /* PUBLIC FUNCTION */ +#define public /* PUBLIC FUNCTION */ /* Library function declarations */ @@ -122,10 +122,10 @@ void free(); * Simple lowercase test which can be used during option processing * (before options are parsed which might tell us what charset to use). */ -#define ASCII_IS_UPPER(c) ((c) >= 'A' && (c) <= 'Z') -#define ASCII_IS_LOWER(c) ((c) >= 'a' && (c) <= 'z') -#define ASCII_TO_UPPER(c) ((c) - 'a' + 'A') -#define ASCII_TO_LOWER(c) ((c) - 'A' + 'a') +#define ASCII_IS_UPPER(c) ((c) >= 'A' && (c) <= 'Z') +#define ASCII_IS_LOWER(c) ((c) >= 'a' && (c) <= 'z') +#define ASCII_TO_UPPER(c) ((c) - 'a' + 'A') +#define ASCII_TO_LOWER(c) ((c) - 'A' + 'a') #undef IS_UPPER #undef IS_LOWER @@ -135,56 +135,56 @@ void free(); #undef IS_DIGIT #if HAVE_WCTYPE -#define IS_UPPER(c) iswupper(c) -#define IS_LOWER(c) iswlower(c) -#define TO_UPPER(c) towupper(c) -#define TO_LOWER(c) towlower(c) +#define IS_UPPER(c) iswupper(c) +#define IS_LOWER(c) iswlower(c) +#define TO_UPPER(c) towupper(c) +#define TO_LOWER(c) towlower(c) #else #if HAVE_UPPER_LOWER -#define IS_UPPER(c) isupper((unsigned char) (c)) -#define IS_LOWER(c) islower((unsigned char) (c)) -#define TO_UPPER(c) toupper((unsigned char) (c)) -#define TO_LOWER(c) tolower((unsigned char) (c)) +#define IS_UPPER(c) isupper((unsigned char) (c)) +#define IS_LOWER(c) islower((unsigned char) (c)) +#define TO_UPPER(c) toupper((unsigned char) (c)) +#define TO_LOWER(c) tolower((unsigned char) (c)) #else -#define IS_UPPER(c) ASCII_IS_UPPER(c) -#define IS_LOWER(c) ASCII_IS_LOWER(c) -#define TO_UPPER(c) ASCII_TO_UPPER(c) -#define TO_LOWER(c) ASCII_TO_LOWER(c) +#define IS_UPPER(c) ASCII_IS_UPPER(c) +#define IS_LOWER(c) ASCII_IS_LOWER(c) +#define TO_UPPER(c) ASCII_TO_UPPER(c) +#define TO_LOWER(c) ASCII_TO_LOWER(c) #endif #endif #ifdef isspace -#define IS_SPACE(c) isspace((unsigned char)(c)) +#define IS_SPACE(c) isspace((unsigned char)(c)) #else -#define IS_SPACE(c) ((c) == ' ' || (c) == '\t' || (c) == '\n' || (c) == '\r' || (c) == '\f') +#define IS_SPACE(c) ((c) == ' ' || (c) == '\t' || (c) == '\n' || (c) == '\r' || (c) == '\f') #endif #ifdef isdigit -#define IS_DIGIT(c) isdigit((unsigned char)(c)) +#define IS_DIGIT(c) isdigit((unsigned char)(c)) #else -#define IS_DIGIT(c) ((c) >= '0' && (c) <= '9') +#define IS_DIGIT(c) ((c) >= '0' && (c) <= '9') #endif -#define IS_CSI_START(c) (((LWCHAR)(c)) == ESC || (((LWCHAR)(c)) == CSI)) +#define IS_CSI_START(c) (((LWCHAR)(c)) == ESC || (((LWCHAR)(c)) == CSI)) #ifndef NULL -#define NULL 0 +#define NULL 0 #endif #ifndef TRUE -#define TRUE 1 +#define TRUE 1 #endif #ifndef FALSE -#define FALSE 0 +#define FALSE 0 #endif -#define OPT_OFF 0 -#define OPT_ON 1 -#define OPT_ONPLUS 2 +#define OPT_OFF 0 +#define OPT_ON 1 +#define OPT_ONPLUS 2 #if !HAVE_MEMCPY #ifndef memcpy -#define memcpy(to,from,len) bcopy((from),(to),(len)) +#define memcpy(to,from,len) bcopy((from),(to),(len)) #endif #endif @@ -201,7 +201,7 @@ void free(); #define SNPRINTF4(str, size, fmt, v1, v2, v3, v4) sprintf((str), (fmt), (v1), (v2), (v3), (v4)) #endif -#define BAD_LSEEK ((off_t)-1) +#define BAD_LSEEK ((off_t)-1) #ifndef SEEK_SET #define SEEK_SET 0 @@ -225,37 +225,39 @@ void free(); * Special types and constants. */ typedef unsigned long LWCHAR; -typedef off_t POSITION; -typedef off_t LINENUM; -#define MIN_LINENUM_WIDTH 7 /* Min printing width of a line number */ -#define MAX_UTF_CHAR_LEN 6 /* Max bytes in one UTF-8 char */ +typedef off_t POSITION; +typedef off_t LINENUM; +#define MIN_LINENUM_WIDTH 7 /* Default min printing width of a line number */ +#define MAX_LINENUM_WIDTH 16 /* Max width of a line number */ +#define MAX_STATUSCOL_WIDTH 4 /* Max width of the status column */ +#define MAX_UTF_CHAR_LEN 6 /* Max bytes in one UTF-8 char */ -#define NULL_POSITION ((POSITION)(-1)) +#define NULL_POSITION ((POSITION)(-1)) /* * Flags for open() */ #if MSDOS_COMPILER || OS2 -#define OPEN_READ (O_RDONLY|O_BINARY) +#define OPEN_READ (O_RDONLY|O_BINARY) #else #ifdef _OSK -#define OPEN_READ (S_IREAD) +#define OPEN_READ (S_IREAD) #else #ifdef O_RDONLY -#define OPEN_READ (O_RDONLY) +#define OPEN_READ (O_RDONLY) #else -#define OPEN_READ (0) +#define OPEN_READ (0) #endif #endif #endif #if defined(O_WRONLY) && defined(O_APPEND) -#define OPEN_APPEND (O_APPEND|O_WRONLY) +#define OPEN_APPEND (O_APPEND|O_WRONLY) #else #ifdef _OSK -#define OPEN_APPEND (S_IWRITE) +#define OPEN_APPEND (S_IWRITE) #else -#define OPEN_APPEND (1) +#define OPEN_APPEND (1) #endif #endif @@ -263,12 +265,12 @@ typedef off_t LINENUM; * Set a file descriptor to binary mode. */ #if MSDOS_COMPILER==MSOFTC -#define SET_BINARY(f) _setmode(f, _O_BINARY); +#define SET_BINARY(f) _setmode(f, _O_BINARY); #else #if MSDOS_COMPILER || OS2 -#define SET_BINARY(f) setmode(f, O_BINARY) +#define SET_BINARY(f) setmode(f, O_BINARY) #else -#define SET_BINARY(f) +#define SET_BINARY(f) #endif #endif @@ -276,18 +278,18 @@ typedef off_t LINENUM; * Does the shell treat "?" as a metacharacter? */ #if MSDOS_COMPILER || OS2 || _OSK -#define SHELL_META_QUEST 0 +#define SHELL_META_QUEST 0 #else -#define SHELL_META_QUEST 1 +#define SHELL_META_QUEST 1 #endif -#define SPACES_IN_FILENAMES 1 +#define SPACES_IN_FILENAMES 1 /* * An IFILE represents an input file. */ -#define IFILE VOID_POINTER -#define NULL_IFILE ((IFILE)NULL) +#define IFILE VOID_POINTER +#define NULL_IFILE ((IFILE)NULL) /* * The structure used to represent a "screen position". @@ -298,63 +300,65 @@ typedef off_t LINENUM; */ struct scrpos { - POSITION pos; - int ln; + POSITION pos; + int ln; }; typedef union parg { - char *p_string; - int p_int; - LINENUM p_linenum; + char *p_string; + int p_int; + LINENUM p_linenum; + char p_char; } PARG; -#define NULL_PARG ((PARG *)NULL) +#define NULL_PARG ((PARG *)NULL) struct textlist { - char *string; - char *endstring; + char *string; + char *endstring; }; struct wchar_range { - LWCHAR first, last; + LWCHAR first, last; }; struct wchar_range_table { - struct wchar_range *table; - int count; + struct wchar_range *table; + int count; }; -#define EOI (-1) +#define EOI (-1) -#define READ_INTR (-2) +#define READ_INTR (-2) /* A fraction is represented by an int n; the fraction is n/NUM_FRAC_DENOM */ -#define NUM_FRAC_DENOM 1000000 -#define NUM_LOG_FRAC_DENOM 6 +#define NUM_FRAC_DENOM 1000000 +#define NUM_LOG_FRAC_DENOM 6 /* 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 */ +#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 */ +#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 */ +#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 (1 << 0) /* Search forward from current position */ -#define SRCH_BACK (1 << 1) /* Search backward from current position */ +#define SRCH_FORW (1 << 0) /* Search forward from current position */ +#define SRCH_BACK (1 << 1) /* Search backward from current position */ #define SRCH_NO_MOVE (1 << 2) /* Highlight, but don't move */ +#define SRCH_INCR (1 << 3) /* Incremental search */ #define SRCH_FIND_ALL (1 << 4) /* Find and highlight all matches */ #define SRCH_NO_MATCH (1 << 8) /* Search for non-matching lines */ #define SRCH_PAST_EOF (1 << 9) /* Search past end-of-file, into next file */ @@ -362,32 +366,62 @@ struct wchar_range_table #define SRCH_NO_REGEX (1 << 12) /* Don't use regular expressions */ #define SRCH_FILTER (1 << 13) /* Search is for '&' (filter) command */ #define SRCH_AFTER_TARGET (1 << 14) /* Start search after the target line */ +#define SRCH_WRAP (1 << 15) /* Wrap-around search (continue at BOF/EOF) */ -#define SRCH_REVERSE(t) (((t) & SRCH_FORW) ? \ - (((t) & ~SRCH_FORW) | SRCH_BACK) : \ - (((t) & ~SRCH_BACK) | SRCH_FORW)) +#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 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) */ +#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) */ #define CF_QUIT_ON_ERASE 0001 /* Abort cmd if its entirely erased */ /* Special char bit-flags used to tell put_line() to do something special */ -#define AT_NORMAL (0) -#define AT_UNDERLINE (1 << 0) -#define AT_BOLD (1 << 1) -#define AT_BLINK (1 << 2) -#define AT_STANDOUT (1 << 3) -#define AT_ANSI (1 << 4) /* Content-supplied "ANSI" escape sequence */ -#define AT_BINARY (1 << 5) /* LESS*BINFMT representation */ -#define AT_HILITE (1 << 6) /* Internal highlights (e.g., for search) */ +#define AT_NORMAL (0) +#define AT_UNDERLINE (1 << 0) +#define AT_BOLD (1 << 1) +#define AT_BLINK (1 << 2) +#define AT_STANDOUT (1 << 3) +#define AT_ANSI (1 << 4) /* Content-supplied "ANSI" escape sequence */ +#define AT_BINARY (1 << 5) /* LESS*BINFMT representation */ +#define AT_HILITE (1 << 6) /* Internal highlights (e.g., for search) */ + +#define AT_COLOR_SHIFT 8 +#define AT_NUM_COLORS 16 +#define AT_COLOR ((AT_NUM_COLORS-1) << AT_COLOR_SHIFT) +#define AT_COLOR_ATTN (1 << AT_COLOR_SHIFT) +#define AT_COLOR_BIN (2 << AT_COLOR_SHIFT) +#define AT_COLOR_CTRL (3 << AT_COLOR_SHIFT) +#define AT_COLOR_ERROR (4 << AT_COLOR_SHIFT) +#define AT_COLOR_LINENUM (5 << AT_COLOR_SHIFT) +#define AT_COLOR_MARK (6 << AT_COLOR_SHIFT) +#define AT_COLOR_PROMPT (7 << AT_COLOR_SHIFT) +#define AT_COLOR_RSCROLL (8 << AT_COLOR_SHIFT) +#define AT_COLOR_SEARCH (9 << AT_COLOR_SHIFT) + +typedef enum { CT_NULL, CT_4BIT, CT_6BIT } COLOR_TYPE; + +typedef enum { + CV_BLUE = 1, + CV_GREEN = 2, + CV_RED = 4, + CV_BRIGHT = 8, + CV_NOCHANGE = -2, + CV_ERROR = -1 +} COLOR_VALUE; + +/* ANSI states */ +#define ANSI_MID 1 +#define ANSI_ERR 2 +#define ANSI_END 3 #if '0' == 240 #define IS_EBCDIC_HOST 1 @@ -400,76 +434,76 @@ struct wchar_range_table * 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) + (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) +#define CONTROL(c) ((c)&037) #endif /* IS_EBCDIC_HOST */ -#define ESC CONTROL('[') -#define ESCS "\33" -#define CSI ((unsigned char)'\233') -#define CHAR_END_COMMAND 0x40000000 +#define ESC CONTROL('[') +#define ESCS "\33" +#define CSI ((unsigned char)'\233') +#define CHAR_END_COMMAND 0x40000000 #if _OSK_MWC32 -#define LSIGNAL(sig,func) os9_signal(sig,func) +#define LSIGNAL(sig,func) os9_signal(sig,func) #else -#define LSIGNAL(sig,func) signal(sig,func) +#define LSIGNAL(sig,func) signal(sig,func) #endif #if HAVE_SIGPROCMASK @@ -486,41 +520,41 @@ struct wchar_range_table #endif #endif -#define S_INTERRUPT 01 -#define S_STOP 02 -#define S_WINCH 04 -#define ABORT_SIGS() (sigs & (S_INTERRUPT|S_STOP)) +#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_INTERRUPT 2 -#define QUIT_SAVED_STATUS (-1) +#define QUIT_OK 0 +#define QUIT_ERROR 1 +#define QUIT_INTERRUPT 2 +#define QUIT_SAVED_STATUS (-1) #define FOLLOW_DESC 0 #define FOLLOW_NAME 1 /* filestate flags */ -#define CH_CANSEEK 001 -#define CH_KEEPOPEN 002 -#define CH_POPENED 004 -#define CH_HELPFILE 010 -#define CH_NODATA 020 /* Special case for zero length files */ +#define CH_CANSEEK 001 +#define CH_KEEPOPEN 002 +#define CH_POPENED 004 +#define CH_HELPFILE 010 +#define CH_NODATA 020 /* Special case for zero length files */ -#define ch_zero() ((POSITION)0) +#define ch_zero() ((POSITION)0) -#define FAKE_HELPFILE "@/\\less/\\help/\\file/\\@" -#define FAKE_EMPTYFILE "@/\\less/\\empty/\\file/\\@" +#define FAKE_HELPFILE "@/\\less/\\help/\\file/\\@" +#define FAKE_EMPTYFILE "@/\\less/\\empty/\\file/\\@" /* Flags for cvt_text */ -#define CVT_TO_LC 01 /* Convert upper-case to lower-case */ -#define CVT_BS 02 /* Do backspace processing */ -#define CVT_CRLF 04 /* Remove CR after LF */ -#define CVT_ANSI 010 /* Remove ANSI escape sequences */ +#define CVT_TO_LC 01 /* Convert upper-case to lower-case */ +#define CVT_BS 02 /* Do backspace processing */ +#define CVT_CRLF 04 /* Remove CR after LF */ +#define CVT_ANSI 010 /* Remove ANSI escape sequences */ #if HAVE_TIME_T -#define time_type time_t +#define time_type time_t #else -#define time_type long +#define time_type long #endif /* X11 mouse reporting definitions */ @@ -535,6 +569,7 @@ struct wchar_range_table struct mlist; struct loption; struct hilite_tree; +struct ansi_state; #include "pattern.h" #include "funcs.h" |