d/freebsd-dev
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Vendor import of less v529.

Browse Source
This commit is contained in:
Xin LI 2017-11-20 06:53:49 +00:00
parent 6f90225e83
commit ee3dcfe98f
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/vendor/less/dist/; revision=326007
svn path=/vendor/less/v529/; revision=326008; tag=vendor/less/v529
53 changed files with 1955 additions and 1262 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

23
Makefile.aut
View File

@ -3,7 +3,7 @@
EMAIL = bug-less@gnu.org
HOMEPAGE = http://www.greenwoodsoftware.com/less
SHELL = /bin/sh
RCS = rcs
GIT = git
NROFF = nroff -man
srcdir = .
@ -22,7 +22,7 @@ DISTFILES_W = \
defines.wn Makefile.wnm Makefile.wnb \
configure
UNICODE_FILES = \
compose.uni ubin.uni wide.uni
compose.uni fmt.uni ubin.uni wide.uni
DISTFILES = \
${SRC} regexp.c regexp.h \
COPYING INSTALL LICENSE Makefile.in Makefile.aut NEWS README \
@ -32,7 +32,7 @@ DISTFILES = \
install.sh defines.h.in mkinstalldirs \
less.nro less.man lesskey.nro lesskey.man lessecho.nro lessecho.man \
less.hlp \
mkfuncs.pl mkhelp.c \
mkfuncs.pl mkhelp.pl \
mkutable $(UNICODE_FILES) \
${DISTFILES_W}
@ -46,15 +46,12 @@ release: .FORCE
.FORCE:
help.c: less.hlp mkhelp
help.c: less.hlp
-mv -f ${srcdir}/help.c ${srcdir}/help.c.old
rm -rf help.c
./mkhelp < less.hlp > help.c
${srcdir}/mkhelp.pl < less.hlp > help.c
if cmp -s help.c help.c.old; then mv -f help.c.old help.c; fi
mkhelp: mkhelp.c
${CC} -o mkhelp mkhelp.c
${srcdir}/configure: ${srcdir}/configure.ac \
${srcdir}/Makefile.in
cd ${srcdir}; autoheader; autoconf
@ -108,8 +105,10 @@ ${srcdir}/lessecho.man: ${srcdir}/lessecho.nro
compose.uni: unicode/UnicodeData.txt
./mkutable -f2 Mn Me -- unicode/UnicodeData.txt > $@
fmt.uni: unicode/UnicodeData.txt
./mkutable -f2 Cf -- unicode/UnicodeData.txt > $@
ubin.uni: unicode/UnicodeData.txt
./mkutable -f2 Cc Cf Cs Co Zl Zp -- unicode/UnicodeData.txt > $@
./mkutable -f2 Cc Cs Co Zl Zp -- unicode/UnicodeData.txt > $@
wide.uni: unicode/EastAsianWidth.txt
./mkutable -f1 W F -- unicode/EastAsianWidth.txt > $@
@ -130,6 +129,7 @@ dist: ${DISTFILES}
tar -cf - $$REL | gzip -c >release/$$REL/$$REL.tar.gz; \
echo "Signing release/$$REL/$$REL.tar.gz"; \
gpg --detach-sign release/$$REL/$$REL.tar.gz; \
mv release/$$REL/$$REL.tar.gz.sig release/$$REL/$$REL.sig; \
echo "Creating release/$$REL/$$REL.zip"; \
zip -rq release/$$REL/$$REL.zip $$REL; \
rm -rf $$REL
@ -137,7 +137,4 @@ dist: ${DISTFILES}
tagall:
@REL=`sed -e '/char version/!d' -e 's/[^0-9.]*\([0-9.]*\).*/v\1/' -e q ${srcdir}/version.c`; \
echo "tagging $$REL"; \
for f in ${srcdir}/RCS/*,v; do \
REV=`co -p $$f 2>&1 | sed -e '1d' -e '3,$$d' -e 's/revision //'`; \
${RCS} -N$$REL:$$REV $$f; \
done
$(GIT) tag -f "$$REL"

2
Makefile.in
View File

@ -62,6 +62,8 @@ lesskey$(EXEEXT): lesskey.${O} version.${O}
lessecho$(EXEEXT): lessecho.${O} version.${O}
${CC} ${LDFLAGS} -o $@ lessecho.${O} version.${O}
charset.${O}: compose.uni ubin.uni wide.uni
${OBJ}: ${srcdir}/less.h ${srcdir}/funcs.h defines.h
install: all ${srcdir}/less.nro ${srcdir}/lesskey.nro ${srcdir}/lessecho.nro installdirs

50
NEWS
View File

@ -11,18 +11,60 @@
======================================================================
Major changes between "less" versions 487 and 491
Major changes between "less" versions 487 and 529
* Don't output terminal init sequence if using -F and file fits on one screen.
* Use ANSI prototypes in funcs.h declarations.
* When using -S, mark truncated lines with a special character.
The character can be changed or disabled via the new --rscroll option.
* Fix some const mismatches.
* New command M marks the last line displayed on the screen.
* Remove "register" in variable declarations.
* New command ESC-m removes a line mark.
* Status column (enabled via -J) now shows mark letters.
* Status column shows search matches even if highlighting is disabled via -G.
* A second ESC-u command will clear search match markers in the status column.
* Do same ANSI escape code filtering for tag matching that we do for
searching, to help when viewing syntax-highlighted code.
* Catch SIGTERM and clean up before exiting.
* Fix bug initializing default charset on Windows.
* Handle keypad ENTER key correctly if it sends something other than newline.
* Fix buffering bug when using stdin with a LESSOPEN pipe.
* On Windows, allow 'u' in -D option to enable underlining.
* On Windows, use underline in sgr mode.
* On Windows, convert UTF-8 to multibyte if console is not UTF-8.
* Update Unicode tables to 2017-03-08.
* Pass-thru Unicode formating chars (Cf type) instead of treating them
as binary chars. But treat them as binary if -U is set.
* Fix erroneous binary file warning when UTF-8 file contains ANSI SGR sequences.
* Fix bugs when using LESSOPEN and switching between stdin and other files.
* Fix some bugs handling filenames containing shell metacharacters.
* Fix some memory leaks.
* Allow some debugging environment variables to be set in lesskey file.
* Code improvements:
. Use ANSI prototypes in funcs.h declarations.
. Fix some const mismatches.
. Remove archaic "register" in variable declarations.
======================================================================
Major changes between "less" versions 481 and 487

5
README
View File

@ -1,7 +1,7 @@
Less, version 491
Less, version 529
This is the distribution of less, version 491, released 07 Apr 2017.
This is the distribution of less, version 529, released 13 Nov 2017.
This program is part of the GNU project (http://www.gnu.org).
This program is free software. You may redistribute it and/or
@ -15,6 +15,7 @@
Please report any problems to bug-less@gnu.org.
See http://www.greenwoodsoftware.com/less for the latest info.
Source repository is at https://github.com/gwsw/less.git.
=========================================================================

5
ch.c
View File

@ -867,13 +867,12 @@ ch_init(f, flags)
calloc(1, sizeof(struct filestate));
thisfile->buflist.next = thisfile->buflist.prev = END_OF_CHAIN;
thisfile->nbufs = 0;
thisfile->flags = 0;
thisfile->flags = flags;
thisfile->fpos = 0;
thisfile->block = 0;
thisfile->offset = 0;
thisfile->file = -1;
thisfile->fsize = NULL_POSITION;
ch_flags = flags;
init_hashtbl();
/*
* Try to seek; set CH_CANSEEK if it works.
@ -898,7 +897,7 @@ ch_close()
if (thisfile == NULL)
return;
if (ch_flags & (CH_CANSEEK|CH_POPENED|CH_HELPFILE))
if ((ch_flags & (CH_CANSEEK|CH_POPENED|CH_HELPFILE)) && !(ch_flags & CH_KEEPOPEN))
{
/*
* We can seek or re-open, so we don't need to keep buffers.

105
charset.c
View File

@ -22,6 +22,13 @@
#include "charset.h"
#if MSDOS_COMPILER==WIN32C
#define WIN32_LEAN_AND_MEAN
#include <windows.h>
#endif
extern int bs_mode;
public int utf_mode = 0;
/*
@ -215,7 +222,13 @@ icharset(name, no_error)
{
ichardef(p->desc);
if (p->p_flag != NULL)
{
#if MSDOS_COMPILER==WIN32C
*(p->p_flag) = 1 + (GetConsoleOutputCP() != CP_UTF8);
#else
*(p->p_flag) = 1;
#endif
}
return (1);
}
}
@ -251,16 +264,17 @@ ilocale()
/*
* Define the printing format for control (or binary utf) chars.
*/
static void
setbinfmt(s, fmtvarptr, default_fmt)
public void
setfmt(s, fmtvarptr, attrptr, default_fmt)
char *s;
char **fmtvarptr;
int *attrptr;
char *default_fmt;
{
if (s && utf_mode)
{
/* It would be too hard to account for width otherwise. */
char *t = s;
char constant *t = s;
while (*t)
{
if (*t < ' ' || *t > '~')
@ -282,15 +296,15 @@ setbinfmt(s, fmtvarptr, default_fmt)
* Select the attributes if it starts with "*".
*/
attr:
if (*s == '*')
if (*s == '*' && s[1] != '\0')
{
switch (s[1])
{
case 'd': binattr = AT_BOLD; break;
case 'k': binattr = AT_BLINK; break;
case 's': binattr = AT_STANDOUT; break;
case 'u': binattr = AT_UNDERLINE; break;
default: binattr = AT_NORMAL; break;
case 'd': *attrptr = AT_BOLD; break;
case 'k': *attrptr = AT_BLINK; break;
case 's': *attrptr = AT_STANDOUT; break;
case 'u': *attrptr = AT_UNDERLINE; break;
default: *attrptr = AT_NORMAL; break;
}
s += 2;
}
@ -305,6 +319,14 @@ set_charset()
{
char *s;
#if MSDOS_COMPILER==WIN32C
/*
* If the Windows console is using UTF-8, we'll use it too.
*/
if (GetConsoleOutputCP() == CP_UTF8)
if (icharset("utf-8", 1))
return;
#endif
/*
* See if environment variable LESSCHARSET is defined.
*/
@ -354,6 +376,7 @@ set_charset()
* rather than from predefined charset entry.
*/
ilocale();
#else
#if MSDOS_COMPILER
/*
* Default to "dos".
@ -383,10 +406,10 @@ init_charset()
set_charset();
s = lgetenv("LESSBINFMT");
setbinfmt(s, &binfmt, "*s<%02X>");
setfmt(s, &binfmt, &binattr, "*s<%02X>");
s = lgetenv("LESSUTFBINFMT");
setbinfmt(s, &utfbinfmt, "<U+%04lX>");
setfmt(s, &utfbinfmt, &binattr, "<U+%04lX>");
}
/*
@ -543,34 +566,19 @@ is_utf8_well_formed(ss, slen)
}
/*
* Return number of invalid UTF-8 sequences found in a buffer.
* Skip bytes until a UTF-8 lead byte (11xxxxxx) or ASCII byte (0xxxxxxx) is found.
*/
public int
utf_bin_count(data, len)
char *data;
int len;
public void
utf_skip_to_lead(pp, limit)
char **pp;
char *limit;
{
int bin_count = 0;
while (len > 0)
{
if (is_utf8_well_formed(data, len))
{
int clen = utf_len(*data & 0377);
data += clen;
len -= clen;
} else
{
/* Skip to next lead byte. */
bin_count++;
do {
++data;
--len;
} while (len > 0 && !IS_UTF8_LEAD(*data & 0377));
}
}
return (bin_count);
do {
++(*pp);
} while (*pp < limit && !IS_UTF8_LEAD((*pp)[0] & 0377) && !IS_ASCII_OCTET((*pp)[0]));
}
/*
* Get the value of a UTF-8 character.
*/
@ -690,9 +698,9 @@ step_char(pp, dir, limit)
{
/* It's easy if chars are one byte. */
if (dir > 0)
ch = (LWCHAR) ((p < limit) ? *p++ : 0);
ch = (LWCHAR) (unsigned char) ((p < limit) ? *p++ : 0);
else
ch = (LWCHAR) ((p > limit) ? *--p : 0);
ch = (LWCHAR) (unsigned char) ((p > limit) ? *--p : 0);
} else if (dir > 0)
{
len = utf_len(*p);
@ -740,6 +748,10 @@ DECLARE_RANGE_TABLE_START(wide)
#include "wide.uni"
DECLARE_RANGE_TABLE_END(wide)
DECLARE_RANGE_TABLE_START(fmt)
#include "fmt.uni"
DECLARE_RANGE_TABLE_END(fmt)
/* comb_table is special pairs, not ranges. */
static struct wchar_range comb_table[] = {
{0x0644,0x0622}, {0x0644,0x0623}, {0x0644,0x0625}, {0x0644,0x0627},
@ -780,7 +792,8 @@ is_in_table(ch, table)
is_composing_char(ch)
LWCHAR ch;
{
return is_in_table(ch, &compose_table);
return is_in_table(ch, &compose_table) ||
(bs_mode != BS_CONTROL && is_in_table(ch, &fmt_table));
}
/*
@ -790,7 +803,21 @@ is_composing_char(ch)
is_ubin_char(ch)
LWCHAR ch;
{
return is_in_table(ch, &ubin_table);
int ubin = is_in_table(ch, &ubin_table) ||
(bs_mode == BS_CONTROL && is_in_table(ch, &fmt_table));
#if MSDOS_COMPILER==WIN32C
if (!ubin && utf_mode == 2 && ch < 0x10000)
{
/*
* Consider it binary if it can't be converted.
*/
BOOL used_default = TRUE;
WideCharToMultiByte(GetConsoleOutputCP(), WC_NO_BEST_FIT_CHARS, (LPCWSTR) &ch, 1, NULL, 0, NULL, &used_default);
if (used_default)
ubin = 1;
}
#endif
return ubin;
}
/*

224
cmd.h
View File

@ -8,129 +8,131 @@
*/
#define MAX_USERCMD 1000
#define MAX_CMDLEN 16
#define MAX_USERCMD 1000
#define MAX_CMDLEN 16
#define A_B_LINE 2
#define A_B_SCREEN 3
#define A_B_SCROLL 4
#define A_B_SEARCH 5
#define A_DIGIT 6
#define A_DISP_OPTION 7
#define A_DEBUG 8
#define A_EXAMINE 9
#define A_FIRSTCMD 10
#define A_FREPAINT 11
#define A_F_LINE 12
#define A_F_SCREEN 13
#define A_F_SCROLL 14
#define A_F_SEARCH 15
#define A_GOEND 16
#define A_GOLINE 17
#define A_GOMARK 18
#define A_HELP 19
#define A_NEXT_FILE 20
#define A_PERCENT 21
#define A_PREFIX 22
#define A_PREV_FILE 23
#define A_QUIT 24
#define A_REPAINT 25
#define A_SETMARK 26
#define A_SHELL 27
#define A_STAT 28
#define A_FF_LINE 29
#define A_BF_LINE 30
#define A_VERSION 31
#define A_VISUAL 32
#define A_F_WINDOW 33
#define A_B_WINDOW 34
#define A_F_BRACKET 35
#define A_B_BRACKET 36
#define A_PIPE 37
#define A_INDEX_FILE 38
#define A_UNDO_SEARCH 39
#define A_FF_SCREEN 40
#define A_LSHIFT 41
#define A_RSHIFT 42
#define A_AGAIN_SEARCH 43
#define A_T_AGAIN_SEARCH 44
#define A_REVERSE_SEARCH 45
#define A_T_REVERSE_SEARCH 46
#define A_OPT_TOGGLE 47
#define A_OPT_SET 48
#define A_OPT_UNSET 49
#define A_F_FOREVER 50
#define A_GOPOS 51
#define A_REMOVE_FILE 52
#define A_NEXT_TAG 53
#define A_PREV_TAG 54
#define A_FILTER 55
#define A_F_UNTIL_HILITE 56
#define A_GOEND_BUF 57
#define A_LLSHIFT 58
#define A_RRSHIFT 59
#define A_B_LINE 2
#define A_B_SCREEN 3
#define A_B_SCROLL 4
#define A_B_SEARCH 5
#define A_DIGIT 6
#define A_DISP_OPTION 7
#define A_DEBUG 8
#define A_EXAMINE 9
#define A_FIRSTCMD 10
#define A_FREPAINT 11
#define A_F_LINE 12
#define A_F_SCREEN 13
#define A_F_SCROLL 14
#define A_F_SEARCH 15
#define A_GOEND 16
#define A_GOLINE 17
#define A_GOMARK 18
#define A_HELP 19
#define A_NEXT_FILE 20
#define A_PERCENT 21
#define A_PREFIX 22
#define A_PREV_FILE 23
#define A_QUIT 24
#define A_REPAINT 25
#define A_SETMARK 26
#define A_SHELL 27
#define A_STAT 28
#define A_FF_LINE 29
#define A_BF_LINE 30
#define A_VERSION 31
#define A_VISUAL 32
#define A_F_WINDOW 33
#define A_B_WINDOW 34
#define A_F_BRACKET 35
#define A_B_BRACKET 36
#define A_PIPE 37
#define A_INDEX_FILE 38
#define A_UNDO_SEARCH 39
#define A_FF_SCREEN 40
#define A_LSHIFT 41
#define A_RSHIFT 42
#define A_AGAIN_SEARCH 43
#define A_T_AGAIN_SEARCH 44
#define A_REVERSE_SEARCH 45
#define A_T_REVERSE_SEARCH 46
#define A_OPT_TOGGLE 47
#define A_OPT_SET 48
#define A_OPT_UNSET 49
#define A_F_FOREVER 50
#define A_GOPOS 51
#define A_REMOVE_FILE 52
#define A_NEXT_TAG 53
#define A_PREV_TAG 54
#define A_FILTER 55
#define A_F_UNTIL_HILITE 56
#define A_GOEND_BUF 57
#define A_LLSHIFT 58
#define A_RRSHIFT 59
#define A_CLRMARK 62
#define A_SETMARKBOT 63
#define A_INVALID 100
#define A_NOACTION 101
#define A_UINVALID 102
#define A_END_LIST 103
#define A_SPECIAL_KEY 104
#define A_INVALID 100
#define A_NOACTION 101
#define A_UINVALID 102
#define A_END_LIST 103
#define A_SPECIAL_KEY 104
#define A_SKIP 127
#define A_SKIP 127
#define A_EXTRA 0200
#define A_EXTRA 0200
/* Line editing characters */
#define EC_BACKSPACE 1
#define EC_LINEKILL 2
#define EC_RIGHT 3
#define EC_LEFT 4
#define EC_W_LEFT 5
#define EC_W_RIGHT 6
#define EC_INSERT 7
#define EC_DELETE 8
#define EC_HOME 9
#define EC_END 10
#define EC_W_BACKSPACE 11
#define EC_W_DELETE 12
#define EC_UP 13
#define EC_DOWN 14
#define EC_EXPAND 15
#define EC_F_COMPLETE 17
#define EC_B_COMPLETE 18
#define EC_LITERAL 19
#define EC_ABORT 20
#define EC_BACKSPACE 1
#define EC_LINEKILL 2
#define EC_RIGHT 3
#define EC_LEFT 4
#define EC_W_LEFT 5
#define EC_W_RIGHT 6
#define EC_INSERT 7
#define EC_DELETE 8
#define EC_HOME 9
#define EC_END 10
#define EC_W_BACKSPACE 11
#define EC_W_DELETE 12
#define EC_UP 13
#define EC_DOWN 14
#define EC_EXPAND 15
#define EC_F_COMPLETE 17
#define EC_B_COMPLETE 18
#define EC_LITERAL 19
#define EC_ABORT 20
#define EC_NOACTION 101
#define EC_UINVALID 102
#define EC_NOACTION 101
#define EC_UINVALID 102
/* Flags for editchar() */
#define EC_PEEK 01
#define EC_NOHISTORY 02
#define EC_NOCOMPLETE 04
#define EC_NORIGHTLEFT 010
#define EC_PEEK 01
#define EC_NOHISTORY 02
#define EC_NOCOMPLETE 04
#define EC_NORIGHTLEFT 010
/* Environment variable stuff */
#define EV_OK 01
#define EV_OK 01
/* Special keys (keys which output different strings on different terminals) */
#define SK_SPECIAL_KEY CONTROL('K')
#define SK_RIGHT_ARROW 1
#define SK_LEFT_ARROW 2
#define SK_UP_ARROW 3
#define SK_DOWN_ARROW 4
#define SK_PAGE_UP 5
#define SK_PAGE_DOWN 6
#define SK_HOME 7
#define SK_END 8
#define SK_DELETE 9
#define SK_INSERT 10
#define SK_CTL_LEFT_ARROW 11
#define SK_CTL_RIGHT_ARROW 12
#define SK_CTL_DELETE 13
#define SK_F1 14
#define SK_BACKTAB 15
#define SK_CTL_BACKSPACE 16
#define SK_CONTROL_K 40
#define SK_SPECIAL_KEY CONTROL('K')
#define SK_RIGHT_ARROW 1
#define SK_LEFT_ARROW 2
#define SK_UP_ARROW 3
#define SK_DOWN_ARROW 4
#define SK_PAGE_UP 5
#define SK_PAGE_DOWN 6
#define SK_HOME 7
#define SK_END 8
#define SK_DELETE 9
#define SK_INSERT 10
#define SK_CTL_LEFT_ARROW 11
#define SK_CTL_RIGHT_ARROW 12
#define SK_CTL_DELETE 13
#define SK_F1 14
#define SK_BACKTAB 15
#define SK_CTL_BACKSPACE 16
#define SK_CONTROL_K 40

24
cmdbuf.c
View File

@ -40,7 +40,7 @@ static int in_completion = 0;
static char *tk_text;
static char *tk_original;
static char *tk_ipoint;
static char *tk_trial;
static char *tk_trial = NULL;
static struct textlist tk_tlist;
#endif
@ -323,8 +323,8 @@ cmd_home()
static void
cmd_lshift()
{
constant char *s;
constant char *save_cp;
char *s;
char *save_cp;
int cols;
/*
@ -342,7 +342,7 @@ cmd_lshift()
while (*s != '\0')
{
int width;
constant char *ns = s;
char *ns = s;
cmd_step_right(&ns, &width, NULL);
if (width > 0)
break;
@ -361,8 +361,8 @@ cmd_lshift()
static void
cmd_rshift()
{
constant char *s;
constant char *save_cp;
char *s;
char *save_cp;
int cols;
/*
@ -427,8 +427,9 @@ cmd_right()
cmd_left()
{
char *ncp;
int width, bswidth;
int width = 0;
int bswidth = 0;
if (cp <= cmdbuf)
{
/* Already at the beginning of the line */
@ -1223,6 +1224,13 @@ cmd_char(c)
*cmd_mbc_buf = c;
if (IS_ASCII_OCTET(c))
cmd_mbc_buf_len = 1;
#if MSDOS_COMPILER || OS2
else if (c == (unsigned char) '\340' && IS_ASCII_OCTET(peekcc()))
{
/* Assume a special key. */
cmd_mbc_buf_len = 1;
}
#endif
else if (IS_UTF8_LEAD(c))
{
cmd_mbc_buf_len = utf_len(c);

359
command.c
View File

@ -26,6 +26,7 @@ extern int quit_if_one_screen;
extern int squished;
extern int sc_width;
extern int sc_height;
extern char *kent;
extern int swindow;
extern int jump_sline;
extern int quitting;
@ -36,9 +37,11 @@ extern int secure;
extern int hshift;
extern int bs_mode;
extern int show_attn;
extern int status_col;
extern POSITION highest_hilite;
extern POSITION start_attnpos;
extern POSITION end_attnpos;
extern char *every_first_cmd;
extern char *curr_altfilename;
extern char version[];
extern struct scrpos initial_scrpos;
extern IFILE curr_ifile;
@ -55,7 +58,6 @@ extern int screen_trashed; /* The screen has been overwritten */
extern int shift_count;
extern int oldbot;
extern int forw_prompt;
extern int same_pos_bell;
#if SHELL_ESCAPE
static char *shellcmd = NULL; /* For holding last shell command for "!!" */
@ -75,10 +77,10 @@ static int save_bs_mode;
static char pipec;
#endif
/* Stack of ungotten chars (via ungetcc) */
struct ungot {
struct ungot *ug_next;
char ug_char;
char ug_end_command;
LWCHAR ug_char;
};
static struct ungot* ungot = NULL;
@ -92,9 +94,7 @@ static void multi_search();
static void
cmd_exec()
{
#if HILITE_SEARCH
clear_attn();
#endif
clear_attn();
clear_bot();
flush();
}
@ -300,12 +300,22 @@ is_erase_char(c)
return (c == erase_char || c == erase2_char || c == kill_char);
}
/*
* Is a character a carriage return or newline?
*/
static int
is_newline_char(c)
int c;
{
return (c == '\n' || c == '\r');
}
/*
* Handle the first char of an option (after the initial dash).
*/
static int
mca_opt_first_char(c)
int c;
int c;
{
int flag = (optflag & ~OPT_NO_PROMPT);
if (flag == OPT_NO_TOGGLE)
@ -425,7 +435,7 @@ mca_opt_char(c)
if (optgetname)
{
/* We're getting a long option name. */
if (c != '\n' && c != '\r')
if (!is_newline_char(c))
return (mca_opt_nonfirst_char(c));
if (curropt == NULL)
{
@ -589,7 +599,7 @@ mca_char(c)
/*
* The multichar command is terminated by a newline.
*/
if (c == '\n' || c == '\r')
if (is_newline_char(c))
{
/*
* Execute the command.
@ -687,7 +697,7 @@ prompt()
{
constant char *p;
if (ungot != NULL && !ungot->ug_end_command)
if (ungot != NULL && ungot->ug_char != CHAR_END_COMMAND)
{
/*
* No prompt necessary if commands are from
@ -768,61 +778,110 @@ dispversion()
error("less %s", &parg);
}
/*
* Return a character to complete a partial command, if possible.
*/
static LWCHAR
getcc_end_command()
{
switch (mca)
{
case A_DIGIT:
/* We have a number but no command. Treat as #g. */
return ('g');
case A_F_SEARCH:
case A_B_SEARCH:
/* We have "/string" but no newline. Add the \n. */
return ('\n');
default:
/* Some other incomplete command. Let user complete it. */
return (getchr());
}
}
/*
* Get command character.
* The character normally comes from the keyboard,
* but may come from ungotten characters
* (characters previously given to ungetcc or ungetsc).
*/
static LWCHAR
getccu()
{
LWCHAR c;
if (ungot == NULL)
{
/* Normal case: no ungotten chars.
* Get char from the user. */
c = getchr();
} else
{
/* Ungotten chars available:
* Take the top of stack (most recent). */
struct ungot *ug = ungot;
c = ug->ug_char;
ungot = ug->ug_next;
free(ug);
if (c == CHAR_END_COMMAND)
c = getcc_end_command();
}
return (c);
}
/*
* Get a command character, but if we receive the orig sequence,
* convert it to the repl sequence.
*/
static LWCHAR
getcc_repl(orig, repl, gr_getc, gr_ungetc)
char const* orig;
char const* repl;
LWCHAR (*gr_getc)(VOID_PARAM);
void (*gr_ungetc)(LWCHAR);
{
LWCHAR c;
LWCHAR keys[16];
int ki = 0;
c = (*gr_getc)();
if (orig == NULL || orig[0] == '\0')
return c;
for (;;)
{
keys[ki] = c;
if (c != orig[ki] || ki >= sizeof(keys)-1)
{
/* This is not orig we have been receiving.
* If we have stashed chars in keys[],
* unget them and return the first one. */
while (ki > 0)
(*gr_ungetc)(keys[ki--]);
return keys[0];
}
if (orig[++ki] == '\0')
{
/* We've received the full orig sequence.
* Return the repl sequence. */
ki = strlen(repl)-1;
while (ki > 0)
(*gr_ungetc)(repl[ki--]);
return repl[0];
}
/* We've received a partial orig sequence (ki chars of it).
* Get next char and see if it continues to match orig. */
c = (*gr_getc)();
}
}
/*
* Get command character.
*/
public int
getcc()
{
if (ungot == NULL)
{
/*
* Normal case: no ungotten chars, so get one from the user.
*/
return (getchr());
}
/*
* Return the next ungotten char.
*/
{
struct ungot *ug = ungot;
char c = ug->ug_char;
int end_command = ug->ug_end_command;
ungot = ug->ug_next;
free(ug);
if (end_command)
{
/*
* Command is incomplete, so try to complete it.
*/
switch (mca)
{
case A_DIGIT:
/*
* We have a number but no command. Treat as #g.
*/
return ('g');
case A_F_SEARCH:
case A_B_SEARCH:
/*
* We have "/string" but no newline. Add the \n.
*/
return ('\n');
default:
/*
* Some other incomplete command. Let user complete it.
*/
return (getchr());
}
}
return (c);
}
/* Replace kent (keypad Enter) with a newline. */
return getcc_repl(kent, "\n", getccu, ungetcc);
}
/*
@ -831,12 +890,11 @@ getcc()
*/
public void
ungetcc(c)
int c;
LWCHAR c;
{
struct ungot *ug = (struct ungot *) ecalloc(1, sizeof(struct ungot));
ug->ug_char = (char) c;
ug->ug_end_command = (c == CHAR_END_COMMAND);
ug->ug_char = c;
ug->ug_next = ungot;
ungot = ug;
}
@ -855,6 +913,17 @@ ungetsc(s)
ungetcc(*p);
}
/*
* Peek the next command character, without consuming it.
*/
public LWCHAR
peekcc()
{
LWCHAR c = getcc();
ungetcc(c);
return c;
}
/*
* Search for a pattern, possibly in multiple files.
* If SRCH_FIRST_FILE is set, begin searching at the first file.
@ -1471,6 +1540,9 @@ commands()
break;
case A_UNDO_SEARCH:
/*
* Clear search string highlighting.
*/
undo_search();
break;
@ -1489,60 +1561,54 @@ commands()
break;
case A_EXAMINE:
#if EXAMINE
/*
* Edit a new file. Get the filename.
*/
if (secure)
#if EXAMINE
if (!secure)
{
error("Command not available", NULL_PARG);
break;
start_mca(A_EXAMINE, "Examine: ", ml_examine, 0);
c = getcc();
goto again;
}
start_mca(A_EXAMINE, "Examine: ", ml_examine, 0);
c = getcc();
goto again;
#else
#endif
error("Command not available", NULL_PARG);
break;
#endif
case A_VISUAL:
/*
* Invoke an editor on the input file.
*/
#if EDITOR
if (secure)
if (!secure)
{
error("Command not available", NULL_PARG);
if (ch_getflags() & CH_HELPFILE)
break;
if (strcmp(get_filename(curr_ifile), "-") == 0)
{
error("Cannot edit standard input", NULL_PARG);
break;
}
if (get_altfilename(curr_ifile) != NULL)
{
error("WARNING: This file was viewed via LESSOPEN",
NULL_PARG);
}
start_mca(A_SHELL, "!", ml_shell, 0);
/*
* Expand the editor prototype string
* and pass it to the system to execute.
* (Make sure the screen is displayed so the
* expansion of "+%lm" works.)
*/
make_display();
cmd_exec();
lsystem(pr_expand(editproto, 0), (char*)NULL);
break;
}
if (ch_getflags() & CH_HELPFILE)
break;
if (strcmp(get_filename(curr_ifile), "-") == 0)
{
error("Cannot edit standard input", NULL_PARG);
break;
}
if (curr_altfilename != NULL)
{
error("WARNING: This file was viewed via LESSOPEN",
NULL_PARG);
}
start_mca(A_SHELL, "!", ml_shell, 0);
/*
* Expand the editor prototype string
* and pass it to the system to execute.
* (Make sure the screen is displayed so the
* expansion of "+%lm" works.)
*/
make_display();
cmd_exec();
lsystem(pr_expand(editproto, 0), (char*)NULL);
break;
#else
#endif
error("Command not available", NULL_PARG);
break;
#endif
case A_NEXT_FILE:
/*
@ -1588,6 +1654,9 @@ commands()
break;
case A_NEXT_TAG:
/*
* Jump to the next tag in the current tag list.
*/
#if TAGS
if (number <= 0)
number = 1;
@ -1597,6 +1666,7 @@ commands()
error("No next tag", NULL_PARG);
break;
}
cmd_exec();
if (edit(tagfile) == 0)
{
POSITION pos = tagsearch();
@ -1609,6 +1679,9 @@ commands()
break;
case A_PREV_TAG:
/*
* Jump to the previous tag in the current tag list.
*/
#if TAGS
if (number <= 0)
number = 1;
@ -1618,6 +1691,7 @@ commands()
error("No previous tag", NULL_PARG);
break;
}
cmd_exec();
if (edit(tagfile) == 0)
{
POSITION pos = tagsearch();
@ -1640,6 +1714,9 @@ commands()
break;
case A_REMOVE_FILE:
/*
* Remove a file from the input file list.
*/
if (ch_getflags() & CH_HELPFILE)
break;
old_ifile = curr_ifile;
@ -1658,6 +1735,9 @@ commands()
break;
case A_OPT_TOGGLE:
/*
* Change the setting of an option.
*/
optflag = OPT_TOGGLE;
optgetname = FALSE;
mca_opt_toggle();
@ -1666,7 +1746,7 @@ commands()
case A_DISP_OPTION:
/*
* Report a flag setting.
* Report the setting of an option.
*/
optflag = OPT_NO_TOGGLE;
optgetname = FALSE;
@ -1687,69 +1767,78 @@ commands()
* Shell escape.
*/
#if SHELL_ESCAPE
if (secure)
if (!secure)
{
error("Command not available", NULL_PARG);
break;
start_mca(A_SHELL, "!", ml_shell, 0);
c = getcc();
goto again;
}
start_mca(A_SHELL, "!", ml_shell, 0);
c = getcc();
goto again;
#else
#endif
error("Command not available", NULL_PARG);
break;
#endif
case A_SETMARK:
case A_SETMARKBOT:
/*
* Set a mark.
*/
if (ch_getflags() & CH_HELPFILE)
break;
start_mca(A_SETMARK, "mark: ", (void*)NULL, 0);
start_mca(A_SETMARK, "set mark: ", (void*)NULL, 0);
c = getcc();
if (c == erase_char || c == erase2_char ||
c == kill_char || c == '\n' || c == '\r')
if (is_erase_char(c) || is_newline_char(c))
break;
setmark(c);
setmark(c, action == A_SETMARKBOT ? BOTTOM : TOP);
repaint();
break;
case A_CLRMARK:
/*
* Clear a mark.
*/
start_mca(A_CLRMARK, "clear mark: ", (void*)NULL, 0);
c = getcc();
if (is_erase_char(c) || is_newline_char(c))
break;
clrmark(c);
repaint();
break;
case A_GOMARK:
/*
* Go to a mark.
* Jump to a marked position.
*/
start_mca(A_GOMARK, "goto mark: ", (void*)NULL, 0);
c = getcc();
if (c == erase_char || c == erase2_char ||
c == kill_char || c == '\n' || c == '\r')
if (is_erase_char(c) || is_newline_char(c))
break;
cmd_exec();
gomark(c);
break;
case A_PIPE:
/*
* Write part of the input to a pipe to a shell command.
*/
#if PIPEC
if (secure)
if (!secure)
{
error("Command not available", NULL_PARG);
break;
start_mca(A_PIPE, "|mark: ", (void*)NULL, 0);
c = getcc();
if (is_erase_char(c))
break;
if (is_newline_char(c))
c = '.';
if (badmark(c))
break;
pipec = c;
start_mca(A_PIPE, "!", ml_shell, 0);
c = getcc();
goto again;
}
start_mca(A_PIPE, "|mark: ", (void*)NULL, 0);
c = getcc();
if (c == erase_char || c == erase2_char || c == kill_char)
break;
if (c == '\n' || c == '\r')
c = '.';
if (badmark(c))
break;
pipec = c;
start_mca(A_PIPE, "!", ml_shell, 0);
c = getcc();
goto again;
#else
#endif
error("Command not available", NULL_PARG);
break;
#endif
case A_B_BRACKET:
case A_F_BRACKET:
@ -1758,6 +1847,9 @@ commands()
goto again;
case A_LSHIFT:
/*
* Shift view left.
*/
if (number > 0)
shift_count = number;
else
@ -1770,6 +1862,9 @@ commands()
break;
case A_RSHIFT:
/*
* Shift view right.
*/
if (number > 0)
shift_count = number;
else
@ -1780,11 +1875,17 @@ commands()
break;
case A_LLSHIFT:
/*
* Shift view left to margin.
*/
hshift = 0;
screen_trashed = 1;
break;
case A_RRSHIFT:
/*
* Shift view right to view rightmost char on screen.
*/
hshift = rrshift();
screen_trashed = 1;
break;

40
compose.uni
View File

@ -1,4 +1,5 @@
/* Generated by "./mkutable -f2 Mn Me -- unicode/UnicodeData.txt" on Tue Sep 20 10:51:43 PDT 2016 */
/* Generated by "./mkutable -f2 Mn Me Cf -- unicode/UnicodeData.txt" on Tue Jul 25 09:04:35 PDT 2017 */
{ 0x00ad, 0x00ad }, /* Cf */
{ 0x0300, 0x036f }, /* Mn */
{ 0x0483, 0x0487 }, /* Mn */
{ 0x0488, 0x0489 }, /* Me */
@ -7,13 +8,17 @@
{ 0x05c1, 0x05c2 }, /* Mn */
{ 0x05c4, 0x05c5 }, /* Mn */
{ 0x05c7, 0x05c7 }, /* Mn */
{ 0x0600, 0x0605 }, /* Cf */
{ 0x0610, 0x061a }, /* Mn */
{ 0x061c, 0x061c }, /* Cf */
{ 0x064b, 0x065f }, /* Mn */
{ 0x0670, 0x0670 }, /* Mn */
{ 0x06d6, 0x06dc }, /* Mn */
{ 0x06dd, 0x06dd }, /* Cf */
{ 0x06df, 0x06e4 }, /* Mn */
{ 0x06e7, 0x06e8 }, /* Mn */
{ 0x06ea, 0x06ed }, /* Mn */
{ 0x070f, 0x070f }, /* Cf */
{ 0x0711, 0x0711 }, /* Mn */
{ 0x0730, 0x074a }, /* Mn */
{ 0x07a6, 0x07b0 }, /* Mn */
@ -24,6 +29,7 @@
{ 0x0829, 0x082d }, /* Mn */
{ 0x0859, 0x085b }, /* Mn */
{ 0x08d4, 0x08e1 }, /* Mn */
{ 0x08e2, 0x08e2 }, /* Cf */
{ 0x08e3, 0x0902 }, /* Mn */
{ 0x093a, 0x093a }, /* Mn */
{ 0x093c, 0x093c }, /* Mn */
@ -50,6 +56,7 @@
{ 0x0ac7, 0x0ac8 }, /* Mn */
{ 0x0acd, 0x0acd }, /* Mn */
{ 0x0ae2, 0x0ae3 }, /* Mn */
{ 0x0afa, 0x0aff }, /* Mn */
{ 0x0b01, 0x0b01 }, /* Mn */
{ 0x0b3c, 0x0b3c }, /* Mn */
{ 0x0b3f, 0x0b3f }, /* Mn */
@ -72,7 +79,8 @@
{ 0x0cc6, 0x0cc6 }, /* Mn */
{ 0x0ccc, 0x0ccd }, /* Mn */
{ 0x0ce2, 0x0ce3 }, /* Mn */
{ 0x0d01, 0x0d01 }, /* Mn */
{ 0x0d00, 0x0d01 }, /* Mn */
{ 0x0d3b, 0x0d3c }, /* Mn */
{ 0x0d41, 0x0d44 }, /* Mn */
{ 0x0d4d, 0x0d4d }, /* Mn */
{ 0x0d62, 0x0d63 }, /* Mn */
@ -118,6 +126,7 @@
{ 0x17c9, 0x17d3 }, /* Mn */
{ 0x17dd, 0x17dd }, /* Mn */
{ 0x180b, 0x180d }, /* Mn */
{ 0x180e, 0x180e }, /* Cf */
{ 0x1885, 0x1886 }, /* Mn */
{ 0x18a9, 0x18a9 }, /* Mn */
{ 0x1920, 0x1922 }, /* Mn */
@ -157,8 +166,12 @@
{ 0x1ced, 0x1ced }, /* Mn */
{ 0x1cf4, 0x1cf4 }, /* Mn */
{ 0x1cf8, 0x1cf9 }, /* Mn */
{ 0x1dc0, 0x1df5 }, /* Mn */
{ 0x1dc0, 0x1df9 }, /* Mn */
{ 0x1dfb, 0x1dff }, /* Mn */
{ 0x200b, 0x200f }, /* Cf */
{ 0x202a, 0x202e }, /* Cf */
{ 0x2060, 0x2064 }, /* Cf */
{ 0x2066, 0x206f }, /* Cf */
{ 0x20d0, 0x20dc }, /* Mn */
{ 0x20dd, 0x20e0 }, /* Me */
{ 0x20e1, 0x20e1 }, /* Mn */
@ -206,6 +219,8 @@
{ 0xfb1e, 0xfb1e }, /* Mn */
{ 0xfe00, 0xfe0f }, /* Mn */
{ 0xfe20, 0xfe2f }, /* Mn */
{ 0xfeff, 0xfeff }, /* Cf */
{ 0xfff9, 0xfffb }, /* Cf */
{ 0x101fd, 0x101fd }, /* Mn */
{ 0x102e0, 0x102e0 }, /* Mn */
{ 0x10376, 0x1037a }, /* Mn */
@ -220,6 +235,7 @@
{ 0x1107f, 0x11081 }, /* Mn */
{ 0x110b3, 0x110b6 }, /* Mn */
{ 0x110b9, 0x110ba }, /* Mn */
{ 0x110bd, 0x110bd }, /* Cf */
{ 0x11100, 0x11102 }, /* Mn */
{ 0x11127, 0x1112b }, /* Mn */
{ 0x1112d, 0x11134 }, /* Mn */
@ -259,6 +275,15 @@
{ 0x1171d, 0x1171f }, /* Mn */
{ 0x11722, 0x11725 }, /* Mn */
{ 0x11727, 0x1172b }, /* Mn */
{ 0x11a01, 0x11a06 }, /* Mn */
{ 0x11a09, 0x11a0a }, /* Mn */
{ 0x11a33, 0x11a38 }, /* Mn */
{ 0x11a3b, 0x11a3e }, /* Mn */
{ 0x11a47, 0x11a47 }, /* Mn */
{ 0x11a51, 0x11a56 }, /* Mn */
{ 0x11a59, 0x11a5b }, /* Mn */
{ 0x11a8a, 0x11a96 }, /* Mn */
{ 0x11a98, 0x11a99 }, /* Mn */
{ 0x11c30, 0x11c36 }, /* Mn */
{ 0x11c38, 0x11c3d }, /* Mn */
{ 0x11c3f, 0x11c3f }, /* Mn */
@ -266,11 +291,18 @@
{ 0x11caa, 0x11cb0 }, /* Mn */
{ 0x11cb2, 0x11cb3 }, /* Mn */
{ 0x11cb5, 0x11cb6 }, /* Mn */
{ 0x11d31, 0x11d36 }, /* Mn */
{ 0x11d3a, 0x11d3a }, /* Mn */
{ 0x11d3c, 0x11d3d }, /* Mn */
{ 0x11d3f, 0x11d45 }, /* Mn */
{ 0x11d47, 0x11d47 }, /* Mn */
{ 0x16af0, 0x16af4 }, /* Mn */
{ 0x16b30, 0x16b36 }, /* Mn */
{ 0x16f8f, 0x16f92 }, /* Mn */
{ 0x1bc9d, 0x1bc9e }, /* Mn */
{ 0x1bca0, 0x1bca3 }, /* Cf */
{ 0x1d167, 0x1d169 }, /* Mn */
{ 0x1d173, 0x1d17a }, /* Cf */
{ 0x1d17b, 0x1d182 }, /* Mn */
{ 0x1d185, 0x1d18b }, /* Mn */
{ 0x1d1aa, 0x1d1ad }, /* Mn */
@ -288,4 +320,6 @@
{ 0x1e026, 0x1e02a }, /* Mn */
{ 0x1e8d0, 0x1e8d6 }, /* Mn */
{ 0x1e944, 0x1e94a }, /* Mn */
{ 0xe0001, 0xe0001 }, /* Cf */
{ 0xe0020, 0xe007f }, /* Cf */
{ 0xe0100, 0xe01ef }, /* Mn */

2
configure.ac
View File

@ -659,7 +659,7 @@ AH_TOP([
/*
* Default shell metacharacters and meta-escape character.
*/
#define DEF_METACHARS "; *?\t\n'\"()<>[]|&^`#\\$%=~"
#define DEF_METACHARS "; *?\t\n'\"()<>[]|&^`#\\$%=~{},"
#define DEF_METAESCAPE "\\"
/*

2
cvt.c
View File

@ -83,7 +83,7 @@ cvt_text(odst, osrc, chpos, lenp, ops)
/* Delete backspace and preceding char. */
do {
dst--;
} while (dst > odst &&
} while (dst > odst && utf_mode &&
!IS_ASCII_OCTET(*dst) && !IS_UTF8_LEAD(*dst));
} else if ((ops & CVT_ANSI) && IS_CSI_START(ch))
{

32
decode.c
View File

@ -140,6 +140,8 @@ static unsigned char cmdtable[] =
ESC,'N',0, A_T_REVERSE_SEARCH,
'&',0, A_FILTER,
'm',0, A_SETMARK,
'M',0, A_SETMARKBOT,
ESC,'m',0, A_CLRMARK,
'\'',0, A_GOMARK,
CONTROL('X'),CONTROL('X'),0, A_GOMARK,
'E',0, A_EXAMINE,
@ -290,6 +292,33 @@ expand_special_keys(table, len)
}
}
/*
* Expand special key abbreviations in a list of command tables.
*/
static void
expand_cmd_table(tlist)
struct tablelist *tlist;
{
struct tablelist *t;
for (t = tlist; t != NULL; t = t->t_next)
{
expand_special_keys(t->t_start, t->t_end - t->t_start);
}
}
/*
* Expand special key abbreviations in all command tables.
*/
public void
expand_cmd_tables()
{
expand_cmd_table(list_fcmd_tables);
expand_cmd_table(list_ecmd_tables);
expand_cmd_table(list_var_tables);
expand_cmd_table(list_sysvar_tables);
}
/*
* Initialize the command lists.
*/
@ -342,7 +371,6 @@ add_cmd_table(tlist, buf, len)
{
return (-1);
}
expand_special_keys(buf, len);
t->t_start = buf;
t->t_end = buf + len;
t->t_next = *tlist;
@ -661,9 +689,7 @@ lesskey(filename, sysvar)
/*
* Try to open the lesskey file.
*/
filename = shell_unquote(filename);
f = open(filename, OPEN_READ);
free(filename);
if (f < 0)
return (1);

2
defines.h.in
View File

@ -167,7 +167,7 @@
/*
* Default shell metacharacters and meta-escape character.
*/
#define DEF_METACHARS "; *?\t\n'\"()<>[]|&^`#\\$%=~"
#define DEF_METACHARS "; *?\t\n'\"()<>[]|&^`#\\$%=~{},"
#define DEF_METAESCAPE "\\"
/*

265
edit.c
View File

@ -9,9 +9,13 @@
#include "less.h"
#include "position.h"
#if HAVE_STAT
#include <sys/stat.h>
#endif
#if OS2
#include <signal.h>
#endif
public int fd0 = 0;
@ -43,9 +47,6 @@ public dev_t curr_dev;
public ino_t curr_ino;
#endif
char *curr_altfilename = NULL;
static void *curr_altpipe;
/*
* Textlist functions deal with a list of words separated by spaces.
@ -148,6 +149,24 @@ back_textlist(tlist, prev)
return (s);
}
/*
* Close a pipe opened via popen.
*/
static void
close_pipe(FILE *pipefd)
{
if (pipefd == NULL)
return;
#if OS2
/*
* The pclose function of OS/2 emx sometimes fails.
* Send SIGINT to the piped process before closing it.
*/
kill(pipefd->_pid, SIGINT);
#endif
pclose(pipefd);
}
/*
* Close the current input file.
*/
@ -155,6 +174,9 @@ back_textlist(tlist, prev)
close_file()
{
struct scrpos scrpos;
int chflags;
FILE *altpipe;
char *altfilename;
if (curr_ifile == NULL_IFILE)
return;
@ -163,7 +185,7 @@ close_file()
* Save the current position so that we can return to
* the same position if we edit this file again.
*/
get_scrpos(&scrpos);
get_scrpos(&scrpos, TOP);
if (scrpos.pos != NULL_POSITION)
{
store_pos(curr_ifile, &scrpos);
@ -172,17 +194,23 @@ close_file()
/*
* Close the file descriptor, unless it is a pipe.
*/
chflags = ch_getflags();
ch_close();
/*
* If we opened a file using an alternate name,
* do special stuff to close it.
*/
if (curr_altfilename != NULL)
altfilename = get_altfilename(curr_ifile);
if (altfilename != NULL)
{
close_altfile(curr_altfilename, get_filename(curr_ifile),
curr_altpipe);
free(curr_altfilename);
curr_altfilename = NULL;
altpipe = get_altpipe(curr_ifile);
if (altpipe != NULL && !(chflags & CH_KEEPOPEN))
{
close_pipe(altpipe);
set_altpipe(curr_ifile, NULL);
}
close_altfile(altfilename, get_filename(curr_ifile));
set_altfilename(curr_ifile, NULL);
}
curr_ifile = NULL_IFILE;
#if HAVE_STAT_INO
@ -218,9 +246,8 @@ edit_ifile(ifile)
int chflags;
char *filename;
char *open_filename;
char *qopen_filename;
char *alt_filename;
void *alt_pipe;
void *altpipe;
IFILE was_curr_ifile;
PARG parg;
@ -270,107 +297,129 @@ edit_ifile(ifile)
}
filename = save(get_filename(ifile));
/*
* See if LESSOPEN specifies an "alternate" file to open.
*/
alt_pipe = NULL;
alt_filename = open_altfile(filename, &f, &alt_pipe);
open_filename = (alt_filename != NULL) ? alt_filename : filename;
qopen_filename = shell_unquote(open_filename);
altpipe = get_altpipe(ifile);
if (altpipe != NULL)
{
/*
* File is already open.
* chflags and f are not used by ch_init if ifile has
* filestate which should be the case if we're here.
* Set them here to avoid uninitialized variable warnings.
*/
chflags = 0;
f = -1;
alt_filename = get_altfilename(ifile);
open_filename = (alt_filename != NULL) ? alt_filename : filename;
} else
{
if (strcmp(filename, FAKE_HELPFILE) == 0 ||
strcmp(filename, FAKE_EMPTYFILE) == 0)
alt_filename = NULL;
else
alt_filename = open_altfile(filename, &f, &altpipe);
chflags = 0;
if (alt_pipe != NULL)
{
/*
* The alternate "file" is actually a pipe.
* f has already been set to the file descriptor of the pipe
* in the call to open_altfile above.
* Keep the file descriptor open because it was opened
* via popen(), and pclose() wants to close it.
*/
chflags |= CH_POPENED;
} else if (strcmp(open_filename, "-") == 0)
{
/*
* Use standard input.
* Keep the file descriptor open because we can't reopen it.
*/
f = fd0;
chflags |= CH_KEEPOPEN;
/*
* Must switch stdin to BINARY mode.
*/
SET_BINARY(f);
open_filename = (alt_filename != NULL) ? alt_filename : filename;
chflags = 0;
if (altpipe != NULL)
{
/*
* The alternate "file" is actually a pipe.
* f has already been set to the file descriptor of the pipe
* in the call to open_altfile above.
* Keep the file descriptor open because it was opened
* via popen(), and pclose() wants to close it.
*/
chflags |= CH_POPENED;
if (strcmp(filename, "-") == 0)
chflags |= CH_KEEPOPEN;
} else if (strcmp(filename, "-") == 0)
{
/*
* Use standard input.
* Keep the file descriptor open because we can't reopen it.
*/
f = fd0;
chflags |= CH_KEEPOPEN;
/*
* Must switch stdin to BINARY mode.
*/
SET_BINARY(f);
#if MSDOS_COMPILER==DJGPPC
/*
* Setting stdin to binary by default causes
* Ctrl-C to not raise SIGINT. We must undo
* that side-effect.
*/
__djgpp_set_ctrl_c(1);
/*
* Setting stdin to binary by default causes
* Ctrl-C to not raise SIGINT. We must undo
* that side-effect.
*/
__djgpp_set_ctrl_c(1);
#endif
} else if (strcmp(open_filename, FAKE_EMPTYFILE) == 0)
{
f = -1;
chflags |= CH_NODATA;
} else if (strcmp(open_filename, FAKE_HELPFILE) == 0)
{
f = -1;
chflags |= CH_HELPFILE;
} else if ((parg.p_string = bad_file(open_filename)) != NULL)
{
/*
* It looks like a bad file. Don't try to open it.
*/
error("%s", &parg);
free(parg.p_string);
err1:
if (alt_filename != NULL)
} else if (strcmp(open_filename, FAKE_EMPTYFILE) == 0)
{
close_altfile(alt_filename, filename, alt_pipe);
free(alt_filename);
}
del_ifile(ifile);
free(qopen_filename);
free(filename);
/*
* Re-open the current file.
*/
if (was_curr_ifile == ifile)
f = -1;
chflags |= CH_NODATA;
} else if (strcmp(open_filename, FAKE_HELPFILE) == 0)
{
f = -1;
chflags |= CH_HELPFILE;
} else if ((parg.p_string = bad_file(open_filename)) != NULL)
{
/*
* Whoops. The "current" ifile is the one we just deleted.
* Just give up.
* It looks like a bad file. Don't try to open it.
*/
quit(QUIT_ERROR);
}
reedit_ifile(was_curr_ifile);
return (1);
} else if ((f = open(qopen_filename, OPEN_READ)) < 0)
{
/*
* Got an error trying to open it.
*/
parg.p_string = errno_message(filename);
error("%s", &parg);
free(parg.p_string);
goto err1;
} else
{
chflags |= CH_CANSEEK;
if (!force_open && !opened(ifile) && bin_file(f))
{
/*
* Looks like a binary file.
* Ask user if we should proceed.
*/
parg.p_string = filename;
answer = query("\"%s\" may be a binary file. See it anyway? ",
&parg);
if (answer != 'y' && answer != 'Y')
error("%s", &parg);
free(parg.p_string);
err1:
if (alt_filename != NULL)
{
close(f);
close_pipe(altpipe);
close_altfile(alt_filename, filename);
free(alt_filename);
}
del_ifile(ifile);
free(filename);
/*
* Re-open the current file.
*/
if (was_curr_ifile == ifile)
{
/*
* Whoops. The "current" ifile is the one we just deleted.
* Just give up.
*/
quit(QUIT_ERROR);
}
reedit_ifile(was_curr_ifile);
return (1);
} else if ((f = open(open_filename, OPEN_READ)) < 0)
{
/*
* Got an error trying to open it.
*/
parg.p_string = errno_message(filename);
error("%s", &parg);
free(parg.p_string);
goto err1;
} else
{
chflags |= CH_CANSEEK;
if (!force_open && !opened(ifile) && bin_file(f))
{
/*
* Looks like a binary file.
* Ask user if we should proceed.
*/
parg.p_string = filename;
answer = query("\"%s\" may be a binary file. See it anyway? ",
&parg);
if (answer != 'y' && answer != 'Y')
{
close(f);
goto err1;
}
}
}
}
@ -385,8 +434,8 @@ edit_ifile(ifile)
unsave_ifile(was_curr_ifile);
}
curr_ifile = ifile;
curr_altfilename = alt_filename;
curr_altpipe = alt_pipe;
set_altfilename(curr_ifile, alt_filename);
set_altpipe(curr_ifile, altpipe);
set_open(curr_ifile); /* File has been opened */
get_pos(curr_ifile, &initial_scrpos);
new_file = TRUE;
@ -400,9 +449,10 @@ edit_ifile(ifile)
#endif
#if HAVE_STAT_INO
/* Remember the i-number and device of the opened file. */
if (strcmp(open_filename, "-") != 0)
{
struct stat statbuf;
int r = stat(qopen_filename, &statbuf);
int r = stat(open_filename, &statbuf);
if (r == 0)
{
curr_ino = statbuf.st_ino;
@ -417,7 +467,6 @@ edit_ifile(ifile)
}
}
free(qopen_filename);
no_display = !any_display;
flush();
any_display = TRUE;
@ -468,6 +517,7 @@ edit_list(filelist)
char *filename;
char *gfilelist;
char *gfilename;
char *qfilename;
struct textlist tl_files;
struct textlist tl_gfiles;
@ -489,8 +539,10 @@ edit_list(filelist)
gfilename = NULL;
while ((gfilename = forw_textlist(&tl_gfiles, gfilename)) != NULL)
{
if (edit(gfilename) == 0 && good_filename == NULL)
qfilename = shell_unquote(gfilename);
if (edit(qfilename) == 0 && good_filename == NULL)
good_filename = get_filename(curr_ifile);
free(qfilename);
}
free(gfilelist);
}
@ -747,7 +799,6 @@ use_logfile(filename)
/*
* {{ We could use access() here. }}
*/
filename = shell_unquote(filename);
exists = open(filename, OPEN_READ);
if (exists >= 0)
close(exists);
@ -816,10 +867,8 @@ use_logfile(filename)
*/
parg.p_string = filename;
error("Cannot write to \"%s\"", &parg);
free(filename);
return;
}
free(filename);
SET_BINARY(logfile);
}

122
filename.c
View File

@ -32,9 +32,6 @@
#include <modes.h>
#endif
#endif
#if OS2
#include <signal.h>
#endif
#if HAVE_STAT
#include <sys/stat.h>
@ -46,7 +43,6 @@
#endif
#endif
extern int force_open;
extern int secure;
extern int use_lessopen;
@ -226,7 +222,6 @@ dirfile(dirname, filename)
char *filename;
{
char *pathname;
char *qpathname;
int len;
int f;
@ -243,8 +238,7 @@ dirfile(dirname, filename)
/*
* Make sure the file exists.
*/
qpathname = shell_unquote(pathname);
f = open(qpathname, OPEN_READ);
f = open(pathname, OPEN_READ);
if (f < 0)
{
free(pathname);
@ -253,7 +247,6 @@ dirfile(dirname, filename)
{
close(f);
}
free(qpathname);
return (pathname);
}
@ -474,7 +467,7 @@ bin_file(f)
int bin_count = 0;
char data[256];
char* p;
char* pend;
char* edata;
if (!seekable(f))
return (0);
@ -483,21 +476,19 @@ bin_file(f)
n = read(f, data, sizeof(data));
if (n <= 0)
return (0);
if (utf_mode)
edata = &data[n];
for (p = data; p < edata; )
{
bin_count = utf_bin_count(data, n);
} else
{
pend = &data[n];
for (p = data; p < pend; )
if (utf_mode && !is_utf8_well_formed(p, edata-data))
{
LWCHAR c = step_char(&p, +1, pend);
bin_count++;
utf_skip_to_lead(&p, edata);
} else
{
LWCHAR c = step_char(&p, +1, edata);
if (ctldisp == OPT_ONPLUS && IS_CSI_START(c))
{
do {
c = step_char(&p, +1, pend);
} while (p < pend && is_ansi_middle(c));
} else if (binary_char(c))
skip_ansi(&p, edata);
else if (binary_char(c))
bin_count++;
}
}
@ -632,12 +623,10 @@ lglob(filename)
char *filename;
{
char *gfilename;
char *ofilename;
ofilename = fexpand(filename);
filename = fexpand(filename);
if (secure)
return (ofilename);
filename = shell_unquote(ofilename);
return (filename);
#ifdef DECL_GLOB_LIST
{
@ -652,8 +641,7 @@ lglob(filename)
GLOB_LIST(filename, list);
if (GLOB_LIST_FAILED(list))
{
free(filename);
return (ofilename);
return (filename);
}
length = 1; /* Room for trailing null byte */
for (SCAN_GLOB_LIST(list, p))
@ -693,15 +681,14 @@ lglob(filename)
char *p;
int len;
int n;
char *pathname;
char *qpathname;
char *pfilename;
char *qfilename;
DECL_GLOB_NAME(fnd,drive,dir,fname,ext,handle)
GLOB_FIRST_NAME(filename, &fnd, handle);
if (GLOB_FIRST_FAILED(handle))
{
free(filename);
return (ofilename);
return (filename);
}
_splitpath(filename, drive, dir, fname, ext);
@ -710,13 +697,13 @@ lglob(filename)
p = gfilename;
do {
n = (int) (strlen(drive) + strlen(dir) + strlen(fnd.GLOB_NAME) + 1);
pathname = (char *) ecalloc(n, sizeof(char));
SNPRINTF3(pathname, n, "%s%s%s", drive, dir, fnd.GLOB_NAME);
qpathname = shell_quote(pathname);
free(pathname);
if (qpathname != NULL)
pfilename = (char *) ecalloc(n, sizeof(char));
SNPRINTF3(pfilename, n, "%s%s%s", drive, dir, fnd.GLOB_NAME);
qfilename = shell_quote(pfilename);
free(pfilename);
if (qfilename != NULL)
{
n = (int) strlen(qpathname);
n = (int) strlen(qfilename);
while (p - gfilename + n + 2 >= len)
{
/*
@ -731,8 +718,8 @@ lglob(filename)
gfilename = p;
p = gfilename + strlen(gfilename);
}
strcpy(p, qpathname);
free(qpathname);
strcpy(p, qfilename);
free(qfilename);
p += n;
*p++ = ' ';
}
@ -764,8 +751,7 @@ lglob(filename)
esc = shell_quote(esc);
if (esc == NULL)
{
free(filename);
return (ofilename);
return (filename);
}
lessecho = lgetenv("LESSECHO");
if (lessecho == NULL || *lessecho == '\0')
@ -773,13 +759,13 @@ lglob(filename)
/*
* Invoke lessecho, and read its output (a globbed list of filenames).
*/
len = (int) (strlen(lessecho) + strlen(ofilename) + (7*strlen(metachars())) + 24);
len = (int) (strlen(lessecho) + strlen(filename) + (7*strlen(metachars())) + 24);
cmd = (char *) ecalloc(len, sizeof(char));
SNPRINTF4(cmd, len, "%s -p0x%x -d0x%x -e%s ", lessecho, openquote, closequote, esc);
free(esc);
for (s = metachars(); *s != '\0'; s++)
sprintf(cmd + strlen(cmd), "-n0x%x ", *s);
sprintf(cmd + strlen(cmd), "-- %s", ofilename);
sprintf(cmd + strlen(cmd), "-- %s", filename);
fd = shellcmd(cmd);
free(cmd);
if (fd == NULL)
@ -788,16 +774,14 @@ lglob(filename)
* Cannot create the pipe.
* Just return the original (fexpanded) filename.
*/
free(filename);
return (ofilename);
return (filename);
}
gfilename = readfd(fd);
pclose(fd);
if (*gfilename == '\0')
{
free(gfilename);
free(filename);
return (ofilename);
return (save(filename));
}
}
#else
@ -809,7 +793,6 @@ lglob(filename)
#endif
#endif
free(filename);
free(ofilename);
return (gfilename);
}
@ -853,6 +836,7 @@ open_altfile(filename, pf, pfd)
return (NULL);
#else
char *lessopen;
char *qfilename;
char *cmd;
int len;
FILE *fd;
@ -879,24 +863,28 @@ open_altfile(filename, pf, pfd)
returnfd++;
#endif
}
if (*lessopen == '-') {
if (*lessopen == '-')
{
/*
* Lessopen preprocessor will accept "-" as a filename.
*/
lessopen++;
} else {
} else
{
if (strcmp(filename, "-") == 0)
return (NULL);
}
if (num_pct_s(lessopen) > 1)
if (num_pct_s(lessopen) != 1)
{
error("Invalid LESSOPEN variable", NULL_PARG);
error("LESSOPEN ignored: must contain exactly one %%s", NULL_PARG);
return (NULL);
}
len = (int) (strlen(lessopen) + strlen(filename) + 2);
qfilename = shell_quote(filename);
len = (int) (strlen(lessopen) + strlen(qfilename) + 2);
cmd = (char *) ecalloc(len, sizeof(char));
SNPRINTF1(cmd, len, lessopen, filename);
SNPRINTF1(cmd, len, lessopen, qfilename);
free(qfilename);
fd = shellcmd(cmd);
free(cmd);
if (fd == NULL)
@ -909,11 +897,12 @@ open_altfile(filename, pf, pfd)
#if HAVE_FILENO
if (returnfd)
{
int f;
char c;
int f;
/*
* Read one char to see if the pipe will produce any data.
* The first time we open the file, read one char
* to see if the pipe will produce any data.
* If it does, push the char back on the pipe.
*/
f = fileno(fd);
@ -956,10 +945,9 @@ open_altfile(filename, pf, pfd)
* Close a replacement file.
*/
public void
close_altfile(altfilename, filename, pipefd)
close_altfile(altfilename, filename)
char *altfilename;
char *filename;
void *pipefd;
{
#if HAVE_POPEN
char *lessclose;
@ -969,22 +957,12 @@ close_altfile(altfilename, filename, pipefd)
if (secure)
return;
if (pipefd != NULL)
{
#if OS2
/*
* The pclose function of OS/2 emx sometimes fails.
* Send SIGINT to the piped process before closing it.
*/
kill(((FILE*)pipefd)->_pid, SIGINT);
#endif
pclose((FILE*) pipefd);
}
ch_ungetchar(-1);
if ((lessclose = lgetenv("LESSCLOSE")) == NULL)
return;
if (num_pct_s(lessclose) > 2)
{
error("Invalid LESSCLOSE variable", NULL_PARG);
error("LESSCLOSE ignored; must contain no more than 2 %%s", NULL_PARG);
return;
}
len = (int) (strlen(lessclose) + strlen(filename) + strlen(altfilename) + 2);
@ -1006,7 +984,6 @@ is_dir(filename)
{
int isdir = 0;
filename = shell_unquote(filename);
#if HAVE_STAT
{
int r;
@ -1027,7 +1004,6 @@ is_dir(filename)
}
#endif
#endif
free(filename);
return (isdir);
}
@ -1042,7 +1018,6 @@ bad_file(filename)
{
char *m = NULL;
filename = shell_unquote(filename);
if (!force_open && is_dir(filename))
{
static char is_a_dir[] = " is a directory";
@ -1074,7 +1049,6 @@ bad_file(filename)
}
#endif
}
free(filename);
return (m);
}

19
fmt.uni Normal file
View File

@ -0,0 +1,19 @@
/* Generated by "./mkutable -f2 Cf -- unicode/UnicodeData.txt" on Sun Nov 12 16:13:49 PST 2017 */
{ 0x00ad, 0x00ad }, /* Cf */
{ 0x0600, 0x0605 }, /* Cf */
{ 0x061c, 0x061c }, /* Cf */
{ 0x06dd, 0x06dd }, /* Cf */
{ 0x070f, 0x070f }, /* Cf */
{ 0x08e2, 0x08e2 }, /* Cf */
{ 0x180e, 0x180e }, /* Cf */
{ 0x200b, 0x200f }, /* Cf */
{ 0x202a, 0x202e }, /* Cf */
{ 0x2060, 0x2064 }, /* Cf */
{ 0x2066, 0x206f }, /* Cf */
{ 0xfeff, 0xfeff }, /* Cf */
{ 0xfff9, 0xfffb }, /* Cf */
{ 0x110bd, 0x110bd }, /* Cf */
{ 0x1bca0, 0x1bca3 }, /* Cf */
{ 0x1d173, 0x1d17a }, /* Cf */
{ 0xe0001, 0xe0001 }, /* Cf */
{ 0xe0020, 0xe007f }, /* Cf */

8
forwback.c
View File

@ -285,7 +285,7 @@ forw(n, pos, force, only_last, nblank)
forw_prompt = 1;
}
if (nlines == 0 && same_pos_bell)
if (nlines == 0 && !ignore_eoi && same_pos_bell)
eof_bell();
else if (do_repaint)
repaint();
@ -446,15 +446,15 @@ get_back_scroll()
}
/*
* Get line count of file up to the screen height + 1 char
* Return number of displayable lines in the file.
* Stop counting at screen height + 1.
*/
public int
get_line_count()
{
int nlines;
POSITION pos;
POSITION pos = ch_zero();
pos = ch_zero();
for (nlines = 0; nlines <= sc_height; nlines++)
{
pos = forw_line(pos);

610
funcs.h
View File

@ -1,300 +1,310 @@
public char * save LESSPARAMS((constant char *s));
public VOID_POINTER ecalloc LESSPARAMS((int count, unsigned int size));
public char * skipsp LESSPARAMS((char *s));
public int sprefix LESSPARAMS((char *ps, char *s, int uppercase));
public void quit LESSPARAMS((int status));
public void raw_mode LESSPARAMS((int on));
public void scrsize LESSPARAMS((VOID_PARAM));
public char * special_key_str LESSPARAMS((int key));
public void get_term LESSPARAMS((VOID_PARAM));
public void init LESSPARAMS((VOID_PARAM));
public void deinit LESSPARAMS((VOID_PARAM));
public void home LESSPARAMS((VOID_PARAM));
public void add_line LESSPARAMS((VOID_PARAM));
public void remove_top LESSPARAMS((int n));
public void win32_scroll_up LESSPARAMS((int n));
public void lower_left LESSPARAMS((VOID_PARAM));
public void line_left LESSPARAMS((VOID_PARAM));
public void check_winch LESSPARAMS((VOID_PARAM));
public void goto_line LESSPARAMS((int slinenum));
public void vbell LESSPARAMS((VOID_PARAM));
public void bell LESSPARAMS((VOID_PARAM));
public void clear LESSPARAMS((VOID_PARAM));
public void clear_eol LESSPARAMS((VOID_PARAM));
public void clear_bot LESSPARAMS((VOID_PARAM));
public void at_enter LESSPARAMS((int attr));
public void at_exit LESSPARAMS((VOID_PARAM));
public void at_switch LESSPARAMS((int attr));
public int is_at_equiv LESSPARAMS((int attr1, int attr2));
public int apply_at_specials LESSPARAMS((int attr));
public void backspace LESSPARAMS((VOID_PARAM));
public void putbs LESSPARAMS((VOID_PARAM));
public char WIN32getch LESSPARAMS((int tty));
public void WIN32setcolors LESSPARAMS((int fg, int bg));
public void WIN32textout LESSPARAMS((char *text, int len));
public void match_brac LESSPARAMS((int obrac, int cbrac, int forwdir, int n));
public void ch_ungetchar LESSPARAMS((int c));
public void end_logfile LESSPARAMS((VOID_PARAM));
public void sync_logfile LESSPARAMS((VOID_PARAM));
public int ch_seek LESSPARAMS((POSITION pos));
public int ch_end_seek LESSPARAMS((VOID_PARAM));
public int ch_end_buffer_seek LESSPARAMS((VOID_PARAM));
public int ch_beg_seek LESSPARAMS((VOID_PARAM));
public POSITION ch_length LESSPARAMS((VOID_PARAM));
public POSITION ch_tell LESSPARAMS((VOID_PARAM));
public int ch_forw_get LESSPARAMS((VOID_PARAM));
public int ch_back_get LESSPARAMS((VOID_PARAM));
public void ch_setbufspace LESSPARAMS((int bufspace));
public void ch_flush LESSPARAMS((VOID_PARAM));
public int seekable LESSPARAMS((int f));
public void ch_set_eof LESSPARAMS((VOID_PARAM));
public void ch_init LESSPARAMS((int f, int flags));
public void ch_close LESSPARAMS((VOID_PARAM));
public int ch_getflags LESSPARAMS((VOID_PARAM));
public void ch_dump LESSPARAMS((VOID_PARAM));
public void init_charset LESSPARAMS((VOID_PARAM));
public int binary_char LESSPARAMS((LWCHAR c));
public int control_char LESSPARAMS((LWCHAR c));
public char * prchar LESSPARAMS((LWCHAR c));
public char * prutfchar LESSPARAMS((LWCHAR ch));
public int utf_len LESSPARAMS((unsigned char ch));
public int is_utf8_well_formed LESSPARAMS((char *ss, int slen));
public int utf_bin_count LESSPARAMS((char *data, int len));
public LWCHAR get_wchar LESSPARAMS((constant char *p));
public void put_wchar LESSPARAMS((char **pp, LWCHAR ch));
public LWCHAR step_char LESSPARAMS((char **pp, signed int dir, constant char *limit));
public int is_composing_char LESSPARAMS((LWCHAR ch));
public int is_ubin_char LESSPARAMS((LWCHAR ch));
public int is_wide_char LESSPARAMS((LWCHAR ch));
public int is_combining_char LESSPARAMS((LWCHAR ch1, LWCHAR ch2));
public void cmd_reset LESSPARAMS((VOID_PARAM));
public void clear_cmd LESSPARAMS((VOID_PARAM));
public void cmd_putstr LESSPARAMS((constant char *s));
public int len_cmdbuf LESSPARAMS((VOID_PARAM));
public void set_mlist LESSPARAMS((void *mlist, int cmdflags));
public void cmd_addhist LESSPARAMS((struct mlist *mlist, constant char *cmd, int modified));
public void cmd_accept LESSPARAMS((VOID_PARAM));
public int cmd_char LESSPARAMS((int c));
public LINENUM cmd_int LESSPARAMS((long *frac));
public char * get_cmdbuf LESSPARAMS((VOID_PARAM));
public char * cmd_lastpattern LESSPARAMS((VOID_PARAM));
public void init_cmdhist LESSPARAMS((VOID_PARAM));
public void save_cmdhist LESSPARAMS((VOID_PARAM));
public int in_mca LESSPARAMS((VOID_PARAM));
public void dispversion LESSPARAMS((VOID_PARAM));
public int getcc LESSPARAMS((VOID_PARAM));
public void ungetcc LESSPARAMS((int c));
public void ungetsc LESSPARAMS((char *s));
public void commands LESSPARAMS((VOID_PARAM));
public int cvt_length LESSPARAMS((int len, int ops));
public int * cvt_alloc_chpos LESSPARAMS((int len));
public void cvt_text LESSPARAMS((char *odst, char *osrc, int *chpos, int *lenp, int ops));
public void init_cmds LESSPARAMS((VOID_PARAM));
public void add_fcmd_table LESSPARAMS((char *buf, int len));
public void add_ecmd_table LESSPARAMS((char *buf, int len));
public int fcmd_decode LESSPARAMS((char *cmd, char **sp));
public int ecmd_decode LESSPARAMS((char *cmd, char **sp));
public char * lgetenv LESSPARAMS((char *var));
public int lesskey LESSPARAMS((char *filename, int sysvar));
public void add_hometable LESSPARAMS((char *envname, char *def_filename, int sysvar));
public int editchar LESSPARAMS((int c, int flags));
public void init_textlist LESSPARAMS((struct textlist *tlist, char *str));
public char * forw_textlist LESSPARAMS((struct textlist *tlist, char *prev));
public char * back_textlist LESSPARAMS((struct textlist *tlist, char *prev));
public int edit LESSPARAMS((char *filename));
public int edit_ifile LESSPARAMS((IFILE ifile));
public int edit_list LESSPARAMS((char *filelist));
public int edit_first LESSPARAMS((VOID_PARAM));
public int edit_last LESSPARAMS((VOID_PARAM));
public int edit_next LESSPARAMS((int n));
public int edit_prev LESSPARAMS((int n));
public int edit_index LESSPARAMS((int n));
public IFILE save_curr_ifile LESSPARAMS((VOID_PARAM));
public void unsave_ifile LESSPARAMS((IFILE save_ifile));
public void reedit_ifile LESSPARAMS((IFILE save_ifile));
public void reopen_curr_ifile LESSPARAMS((VOID_PARAM));
public int edit_stdin LESSPARAMS((VOID_PARAM));
public void cat_file LESSPARAMS((VOID_PARAM));
public void use_logfile LESSPARAMS((char *filename));
public char * shell_unquote LESSPARAMS((char *str));
public char * get_meta_escape LESSPARAMS((VOID_PARAM));
public char * shell_quote LESSPARAMS((char *s));
public char * homefile LESSPARAMS((char *filename));
public char * fexpand LESSPARAMS((char *s));
public char * fcomplete LESSPARAMS((char *s));
public int bin_file LESSPARAMS((int f));
public char * lglob LESSPARAMS((char *filename));
public char * open_altfile LESSPARAMS((char *filename, int *pf, void **pfd));
public void close_altfile LESSPARAMS((char *altfilename, char *filename, void *pipefd));
public int is_dir LESSPARAMS((char *filename));
public char * bad_file LESSPARAMS((char *filename));
public POSITION filesize LESSPARAMS((int f));
public char * shell_coption LESSPARAMS((VOID_PARAM));
public char * last_component LESSPARAMS((char *name));
public int eof_displayed LESSPARAMS((VOID_PARAM));
public int entire_file_displayed LESSPARAMS((VOID_PARAM));
public void squish_check LESSPARAMS((VOID_PARAM));
public void forw LESSPARAMS((int n, POSITION pos, int force, int only_last, int nblank));
public void back LESSPARAMS((int n, POSITION pos, int force, int only_last));
public void forward LESSPARAMS((int n, int force, int only_last));
public void backward LESSPARAMS((int n, int force, int only_last));
public int get_back_scroll LESSPARAMS((VOID_PARAM));
public int get_line_count LESSPARAMS((VOID_PARAM));
public void del_ifile LESSPARAMS((IFILE h));
public IFILE next_ifile LESSPARAMS((IFILE h));
public IFILE prev_ifile LESSPARAMS((IFILE h));
public IFILE getoff_ifile LESSPARAMS((IFILE ifile));
public int nifile LESSPARAMS((VOID_PARAM));
public IFILE get_ifile LESSPARAMS((char *filename, IFILE prev));
public char * get_filename LESSPARAMS((IFILE ifile));
public int get_index LESSPARAMS((IFILE ifile));
public void store_pos LESSPARAMS((IFILE ifile, struct scrpos *scrpos));
public void get_pos LESSPARAMS((IFILE ifile, struct scrpos *scrpos));
public void set_open LESSPARAMS((IFILE ifile));
public int opened LESSPARAMS((IFILE ifile));
public void hold_ifile LESSPARAMS((IFILE ifile, int incr));
public int held_ifile LESSPARAMS((IFILE ifile));
public void * get_filestate LESSPARAMS((IFILE ifile));
public void set_filestate LESSPARAMS((IFILE ifile, void *filestate));
public void if_dump LESSPARAMS((VOID_PARAM));
public POSITION forw_line LESSPARAMS((POSITION curr_pos));
public POSITION back_line LESSPARAMS((POSITION curr_pos));
public void set_attnpos LESSPARAMS((POSITION pos));
public void jump_forw LESSPARAMS((VOID_PARAM));
public void jump_forw_buffered LESSPARAMS((VOID_PARAM));
public void jump_back LESSPARAMS((LINENUM linenum));
public void repaint LESSPARAMS((VOID_PARAM));
public void jump_percent LESSPARAMS((int percent, long fraction));
public void jump_line_loc LESSPARAMS((POSITION pos, int sline));
public void jump_loc LESSPARAMS((POSITION pos, int sline));
public void init_line LESSPARAMS((VOID_PARAM));
public int is_ascii_char LESSPARAMS((LWCHAR ch));
public void prewind LESSPARAMS((VOID_PARAM));
public void plinenum LESSPARAMS((POSITION pos));
public void pshift_all LESSPARAMS((VOID_PARAM));
public int is_ansi_end LESSPARAMS((LWCHAR ch));
public int is_ansi_middle LESSPARAMS((LWCHAR ch));
public int pappend LESSPARAMS((unsigned char c, POSITION pos));
public int pflushmbc LESSPARAMS((VOID_PARAM));
public void pdone LESSPARAMS((int endline, int forw));
public void set_status_col LESSPARAMS((char c));
public int gline LESSPARAMS((int i, int *ap));
public void null_line LESSPARAMS((VOID_PARAM));
public POSITION forw_raw_line LESSPARAMS((POSITION curr_pos, char **linep, int *line_lenp));
public POSITION back_raw_line LESSPARAMS((POSITION curr_pos, char **linep, int *line_lenp));
public int rrshift LESSPARAMS((VOID_PARAM));
public void clr_linenum LESSPARAMS((VOID_PARAM));
public void add_lnum LESSPARAMS((LINENUM linenum, POSITION pos));
public LINENUM find_linenum LESSPARAMS((POSITION pos));
public POSITION find_pos LESSPARAMS((LINENUM linenum));
public LINENUM currline LESSPARAMS((int where));
public void lsystem LESSPARAMS((char *cmd, char *donemsg));
public int pipe_mark LESSPARAMS((int c, char *cmd));
public int pipe_data LESSPARAMS((char *cmd, POSITION spos, POSITION epos));
public void init_mark LESSPARAMS((VOID_PARAM));
public int badmark LESSPARAMS((int c));
public void setmark LESSPARAMS((int c));
public void lastmark LESSPARAMS((VOID_PARAM));
public void gomark LESSPARAMS((int c));
public POSITION markpos LESSPARAMS((int c));
public void unmark LESSPARAMS((IFILE ifile));
public void opt_o LESSPARAMS((int type, char *s));
public void opt__O LESSPARAMS((int type, char *s));
public void opt_j LESSPARAMS((int type, char *s));
public void calc_jump_sline LESSPARAMS((VOID_PARAM));
public void opt_shift LESSPARAMS((int type, char *s));
public void calc_shift_count LESSPARAMS((VOID_PARAM));
public void opt_k LESSPARAMS((int type, char *s));
public void opt_t LESSPARAMS((int type, char *s));
public void opt__T LESSPARAMS((int type, char *s));
public void opt_p LESSPARAMS((int type, char *s));
public void opt__P LESSPARAMS((int type, char *s));
public void opt_b LESSPARAMS((int type, char *s));
public void opt_i LESSPARAMS((int type, char *s));
public void opt__V LESSPARAMS((int type, char *s));
public void opt_D LESSPARAMS((int type, char *s));
public void opt_x LESSPARAMS((int type, char *s));
public void opt_quote LESSPARAMS((int type, char *s));
public void opt_query LESSPARAMS((int type, char *s));
public int get_swindow LESSPARAMS((VOID_PARAM));
public char * propt LESSPARAMS((int c));
public void scan_option LESSPARAMS((char *s));
public void toggle_option LESSPARAMS((struct loption *o, int lower, char *s, int how_toggle));
public int opt_has_param LESSPARAMS((struct loption *o));
public char * opt_prompt LESSPARAMS((struct loption *o));
public int isoptpending LESSPARAMS((VOID_PARAM));
public void nopendopt LESSPARAMS((VOID_PARAM));
public int getnum LESSPARAMS((char **sp, char *printopt, int *errp));
public long getfraction LESSPARAMS((char **sp, char *printopt, int *errp));
public int get_quit_at_eof LESSPARAMS((VOID_PARAM));
public void init_option LESSPARAMS((VOID_PARAM));
public struct loption * findopt LESSPARAMS((int c));
public struct loption * findopt_name LESSPARAMS((char **p_optname, char **p_oname, int *p_err));
public int iread LESSPARAMS((int fd, unsigned char *buf, unsigned int len));
public void intread LESSPARAMS((VOID_PARAM));
public time_type get_time LESSPARAMS((VOID_PARAM));
public char * errno_message LESSPARAMS((char *filename));
public int percentage LESSPARAMS((POSITION num, POSITION den));
public POSITION percent_pos LESSPARAMS((POSITION pos, int percent, long fraction));
public int os9_signal LESSPARAMS((int type, RETSIGTYPE (*handler)()));
public void put_line LESSPARAMS((VOID_PARAM));
public void flush LESSPARAMS((VOID_PARAM));
public int putchr LESSPARAMS((int c));
public void putstr LESSPARAMS((constant char *s));
public void get_return LESSPARAMS((VOID_PARAM));
public void error LESSPARAMS((char *fmt, PARG *parg));
public void ierror LESSPARAMS((char *fmt, PARG *parg));
public int query LESSPARAMS((char *fmt, PARG *parg));
public int compile_pattern LESSPARAMS((char *pattern, int search_type, PATTERN_TYPE *comp_pattern));
public void uncompile_pattern LESSPARAMS((PATTERN_TYPE *pattern));
public int valid_pattern LESSPARAMS((char *pattern));
public int is_null_pattern LESSPARAMS((PATTERN_TYPE pattern));
public int match_pattern LESSPARAMS((PATTERN_TYPE pattern, char *tpattern, char *line, int line_len, char **sp, char **ep, int notbol, int search_type));
public POSITION position LESSPARAMS((int where));
public void add_forw_pos LESSPARAMS((POSITION pos));
public void add_back_pos LESSPARAMS((POSITION pos));
public void pos_clear LESSPARAMS((VOID_PARAM));
public void pos_init LESSPARAMS((VOID_PARAM));
public int onscreen LESSPARAMS((POSITION pos));
public int empty_screen LESSPARAMS((VOID_PARAM));
public int empty_lines LESSPARAMS((int s, int e));
public void get_scrpos LESSPARAMS((struct scrpos *scrpos));
public int adjsline LESSPARAMS((int sline));
public void init_prompt LESSPARAMS((VOID_PARAM));
public char * pr_expand LESSPARAMS((constant char *proto, int maxwidth));
public char * eq_message LESSPARAMS((VOID_PARAM));
public char * pr_string LESSPARAMS((VOID_PARAM));
public char * wait_message LESSPARAMS((VOID_PARAM));
public void init_search LESSPARAMS((VOID_PARAM));
public void repaint_hilite LESSPARAMS((int on));
public void clear_attn LESSPARAMS((VOID_PARAM));
public void undo_search LESSPARAMS((VOID_PARAM));
public void clr_hlist LESSPARAMS((struct hilite_tree *anchor));
public void clr_hilite LESSPARAMS((VOID_PARAM));
public void clr_filter LESSPARAMS((VOID_PARAM));
public int is_filtered LESSPARAMS((POSITION pos));
public POSITION next_unfiltered LESSPARAMS((POSITION pos));
public POSITION prev_unfiltered LESSPARAMS((POSITION pos));
public int is_hilited LESSPARAMS((POSITION pos, POSITION epos, int nohide, int *p_matches));
public void chg_hilite LESSPARAMS((VOID_PARAM));
public void chg_caseless LESSPARAMS((VOID_PARAM));
public int search LESSPARAMS((int search_type, char *pattern, int n));
public void prep_hilite LESSPARAMS((POSITION spos, POSITION epos, int maxlines));
public void set_filter_pattern LESSPARAMS((char *pattern, int search_type));
public int is_filtering LESSPARAMS((VOID_PARAM));
public RETSIGTYPE winch LESSPARAMS((int type));
public RETSIGTYPE winch LESSPARAMS((int type));
public void init_signals LESSPARAMS((int on));
public void psignals LESSPARAMS((VOID_PARAM));
public void cleantags LESSPARAMS((VOID_PARAM));
public int gettagtype LESSPARAMS((VOID_PARAM));
public void findtag LESSPARAMS((char *tag));
public POSITION tagsearch LESSPARAMS((VOID_PARAM));
public char * nexttag LESSPARAMS((int n));
public char * prevtag LESSPARAMS((int n));
public int ntags LESSPARAMS((VOID_PARAM));
public int curr_tag LESSPARAMS((VOID_PARAM));
public int edit_tagfile LESSPARAMS((VOID_PARAM));
public void open_getchr LESSPARAMS((VOID_PARAM));
public void close_getchr LESSPARAMS((VOID_PARAM));
public int getchr LESSPARAMS((VOID_PARAM));
public char * save LESSPARAMS ((constant char *s));
public VOID_POINTER ecalloc LESSPARAMS ((int count, unsigned int size));
public char * skipsp LESSPARAMS ((char *s));
public int sprefix LESSPARAMS ((char *ps, char *s, int uppercase));
public void quit LESSPARAMS ((int status));
public void raw_mode LESSPARAMS ((int on));
public void scrsize LESSPARAMS ((VOID_PARAM));
public char * special_key_str LESSPARAMS ((int key));
public void get_term LESSPARAMS ((VOID_PARAM));
public void init LESSPARAMS ((VOID_PARAM));
public void deinit LESSPARAMS ((VOID_PARAM));
public void home LESSPARAMS ((VOID_PARAM));
public void add_line LESSPARAMS ((VOID_PARAM));
public void remove_top LESSPARAMS ((int n));
public void win32_scroll_up LESSPARAMS ((int n));
public void lower_left LESSPARAMS ((VOID_PARAM));
public void line_left LESSPARAMS ((VOID_PARAM));
public void check_winch LESSPARAMS ((VOID_PARAM));
public void goto_line LESSPARAMS ((int sindex));
public void vbell LESSPARAMS ((VOID_PARAM));
public void bell LESSPARAMS ((VOID_PARAM));
public void clear LESSPARAMS ((VOID_PARAM));
public void clear_eol LESSPARAMS ((VOID_PARAM));
public void clear_bot LESSPARAMS ((VOID_PARAM));
public void at_enter LESSPARAMS ((int attr));
public void at_exit LESSPARAMS ((VOID_PARAM));
public void at_switch LESSPARAMS ((int attr));
public int is_at_equiv LESSPARAMS ((int attr1, int attr2));
public int apply_at_specials LESSPARAMS ((int attr));
public void backspace LESSPARAMS ((VOID_PARAM));
public void putbs LESSPARAMS ((VOID_PARAM));
public char WIN32getch LESSPARAMS ((int tty));
public void WIN32setcolors LESSPARAMS ((int fg, int bg));
public void WIN32textout LESSPARAMS ((char *text, int len));
public void match_brac LESSPARAMS ((int obrac, int cbrac, int forwdir, int n));
public void ch_ungetchar LESSPARAMS ((int c));
public void end_logfile LESSPARAMS ((VOID_PARAM));
public void sync_logfile LESSPARAMS ((VOID_PARAM));
public int ch_seek LESSPARAMS ((POSITION pos));
public int ch_end_seek LESSPARAMS ((VOID_PARAM));
public int ch_end_buffer_seek LESSPARAMS ((VOID_PARAM));
public int ch_beg_seek LESSPARAMS ((VOID_PARAM));
public POSITION ch_length LESSPARAMS ((VOID_PARAM));
public POSITION ch_tell LESSPARAMS ((VOID_PARAM));
public int ch_forw_get LESSPARAMS ((VOID_PARAM));
public int ch_back_get LESSPARAMS ((VOID_PARAM));
public void ch_setbufspace LESSPARAMS ((int bufspace));
public void ch_flush LESSPARAMS ((VOID_PARAM));
public int seekable LESSPARAMS ((int f));
public void ch_set_eof LESSPARAMS ((VOID_PARAM));
public void ch_init LESSPARAMS ((int f, int flags));
public void ch_close LESSPARAMS ((VOID_PARAM));
public int ch_getflags LESSPARAMS ((VOID_PARAM));
public void ch_dump LESSPARAMS ((VOID_PARAM));
public void setfmt LESSPARAMS ((char *s, char **fmtvarptr, int *attrptr, char *default_fmt));
public void init_charset LESSPARAMS ((VOID_PARAM));
public int binary_char LESSPARAMS ((LWCHAR c));
public int control_char LESSPARAMS ((LWCHAR c));
public char * prchar LESSPARAMS ((LWCHAR c));
public char * prutfchar LESSPARAMS ((LWCHAR ch));
public int utf_len LESSPARAMS ((unsigned char ch));
public int is_utf8_well_formed LESSPARAMS ((char *ss, int slen));
public void utf_skip_to_lead LESSPARAMS ((char **pp, char *limit));
public LWCHAR get_wchar LESSPARAMS ((constant char *p));
public void put_wchar LESSPARAMS ((char **pp, LWCHAR ch));
public LWCHAR step_char LESSPARAMS ((char **pp, signed int dir, constant char *limit));
public int is_composing_char LESSPARAMS ((LWCHAR ch));
public int is_ubin_char LESSPARAMS ((LWCHAR ch));
public int is_wide_char LESSPARAMS ((LWCHAR ch));
public int is_combining_char LESSPARAMS ((LWCHAR ch1, LWCHAR ch2));
public void cmd_reset LESSPARAMS ((VOID_PARAM));
public void clear_cmd LESSPARAMS ((VOID_PARAM));
public void cmd_putstr LESSPARAMS ((constant char *s));
public int len_cmdbuf LESSPARAMS ((VOID_PARAM));
public void set_mlist LESSPARAMS ((void *mlist, int cmdflags));
public void cmd_addhist LESSPARAMS ((struct mlist *mlist, constant char *cmd, int modified));
public void cmd_accept LESSPARAMS ((VOID_PARAM));
public int cmd_char LESSPARAMS ((int c));
public LINENUM cmd_int LESSPARAMS ((long *frac));
public char * get_cmdbuf LESSPARAMS ((VOID_PARAM));
public char * cmd_lastpattern LESSPARAMS ((VOID_PARAM));
public void init_cmdhist LESSPARAMS ((VOID_PARAM));
public void save_cmdhist LESSPARAMS ((VOID_PARAM));
public int in_mca LESSPARAMS ((VOID_PARAM));
public void dispversion LESSPARAMS ((VOID_PARAM));
public int getcc LESSPARAMS ((VOID_PARAM));
public void ungetcc LESSPARAMS ((LWCHAR c));
public void ungetsc LESSPARAMS ((char *s));
public LWCHAR peekcc LESSPARAMS ((VOID_PARAM));
public void commands LESSPARAMS ((VOID_PARAM));
public int cvt_length LESSPARAMS ((int len, int ops));
public int * cvt_alloc_chpos LESSPARAMS ((int len));
public void cvt_text LESSPARAMS ((char *odst, char *osrc, int *chpos, int *lenp, int ops));
public void expand_cmd_tables LESSPARAMS ((VOID_PARAM));
public void init_cmds LESSPARAMS ((VOID_PARAM));
public void add_fcmd_table LESSPARAMS ((char *buf, int len));
public void add_ecmd_table LESSPARAMS ((char *buf, int len));
public int fcmd_decode LESSPARAMS ((char *cmd, char **sp));
public int ecmd_decode LESSPARAMS ((char *cmd, char **sp));
public char * lgetenv LESSPARAMS ((char *var));
public int lesskey LESSPARAMS ((char *filename, int sysvar));
public void add_hometable LESSPARAMS ((char *envname, char *def_filename, int sysvar));
public int editchar LESSPARAMS ((int c, int flags));
public void init_textlist LESSPARAMS ((struct textlist *tlist, char *str));
public char * forw_textlist LESSPARAMS ((struct textlist *tlist, char *prev));
public char * back_textlist LESSPARAMS ((struct textlist *tlist, char *prev));
public int edit LESSPARAMS ((char *filename));
public int edit_ifile LESSPARAMS ((IFILE ifile));
public int edit_list LESSPARAMS ((char *filelist));
public int edit_first LESSPARAMS ((VOID_PARAM));
public int edit_last LESSPARAMS ((VOID_PARAM));
public int edit_next LESSPARAMS ((int n));
public int edit_prev LESSPARAMS ((int n));
public int edit_index LESSPARAMS ((int n));
public IFILE save_curr_ifile LESSPARAMS ((VOID_PARAM));
public void unsave_ifile LESSPARAMS ((IFILE save_ifile));
public void reedit_ifile LESSPARAMS ((IFILE save_ifile));
public void reopen_curr_ifile LESSPARAMS ((VOID_PARAM));
public int edit_stdin LESSPARAMS ((VOID_PARAM));
public void cat_file LESSPARAMS ((VOID_PARAM));
public void use_logfile LESSPARAMS ((char *filename));
public char * shell_unquote LESSPARAMS ((char *str));
public char * get_meta_escape LESSPARAMS ((VOID_PARAM));
public char * shell_quote LESSPARAMS ((char *s));
public char * homefile LESSPARAMS ((char *filename));
public char * fexpand LESSPARAMS ((char *s));
public char * fcomplete LESSPARAMS ((char *s));
public int bin_file LESSPARAMS ((int f));
public char * lglob LESSPARAMS ((char *filename));
public char * open_altfile LESSPARAMS ((char *filename, int *pf, void **pfd));
public void close_altfile LESSPARAMS ((char *altfilename, char *filename));
public int is_dir LESSPARAMS ((char *filename));
public char * bad_file LESSPARAMS ((char *filename));
public POSITION filesize LESSPARAMS ((int f));
public char * shell_coption LESSPARAMS ((VOID_PARAM));
public char * last_component LESSPARAMS ((char *name));
public int eof_displayed LESSPARAMS ((VOID_PARAM));
public int entire_file_displayed LESSPARAMS ((VOID_PARAM));
public void squish_check LESSPARAMS ((VOID_PARAM));
public void forw LESSPARAMS ((int n, POSITION pos, int force, int only_last, int nblank));
public void back LESSPARAMS ((int n, POSITION pos, int force, int only_last));
public void forward LESSPARAMS ((int n, int force, int only_last));
public void backward LESSPARAMS ((int n, int force, int only_last));
public int get_back_scroll LESSPARAMS ((VOID_PARAM));
public int get_line_count LESSPARAMS ((VOID_PARAM));
public void del_ifile LESSPARAMS ((IFILE h));
public IFILE next_ifile LESSPARAMS ((IFILE h));
public IFILE prev_ifile LESSPARAMS ((IFILE h));
public IFILE getoff_ifile LESSPARAMS ((IFILE ifile));
public int nifile LESSPARAMS ((VOID_PARAM));
public IFILE get_ifile LESSPARAMS ((char *filename, IFILE prev));
public char * get_filename LESSPARAMS ((IFILE ifile));
public int get_index LESSPARAMS ((IFILE ifile));
public void store_pos LESSPARAMS ((IFILE ifile, struct scrpos *scrpos));
public void get_pos LESSPARAMS ((IFILE ifile, struct scrpos *scrpos));
public void set_open LESSPARAMS ((IFILE ifile));
public int opened LESSPARAMS ((IFILE ifile));
public void hold_ifile LESSPARAMS ((IFILE ifile, int incr));
public int held_ifile LESSPARAMS ((IFILE ifile));
public void * get_filestate LESSPARAMS ((IFILE ifile));
public void set_filestate LESSPARAMS ((IFILE ifile, void *filestate));
public void set_altpipe LESSPARAMS ((IFILE ifile, void *p));
public void * get_altpipe LESSPARAMS ((IFILE ifile));
public void set_altfilename LESSPARAMS ((IFILE ifile, char *altfilename));
public char * get_altfilename LESSPARAMS ((IFILE ifile));
public void if_dump LESSPARAMS ((VOID_PARAM));
public POSITION forw_line LESSPARAMS ((POSITION curr_pos));
public POSITION back_line LESSPARAMS ((POSITION curr_pos));
public void set_attnpos LESSPARAMS ((POSITION pos));
public void jump_forw LESSPARAMS ((VOID_PARAM));
public void jump_forw_buffered LESSPARAMS ((VOID_PARAM));
public void jump_back LESSPARAMS ((LINENUM linenum));
public void repaint LESSPARAMS ((VOID_PARAM));
public void jump_percent LESSPARAMS ((int percent, long fraction));
public void jump_line_loc LESSPARAMS ((POSITION pos, int sline));
public void jump_loc LESSPARAMS ((POSITION pos, int sline));
public void init_line LESSPARAMS ((VOID_PARAM));
public int is_ascii_char LESSPARAMS ((LWCHAR ch));
public void prewind LESSPARAMS ((VOID_PARAM));
public void plinenum LESSPARAMS ((POSITION pos));
public void pshift_all LESSPARAMS ((VOID_PARAM));
public int is_ansi_end LESSPARAMS ((LWCHAR ch));
public int is_ansi_middle LESSPARAMS ((LWCHAR ch));
public void skip_ansi LESSPARAMS ((char **pp, constant char *limit));
public int pappend LESSPARAMS ((unsigned char c, POSITION pos));
public int pflushmbc LESSPARAMS ((VOID_PARAM));
public void pdone LESSPARAMS ((int endline, int chopped, int forw));
public void set_status_col LESSPARAMS ((char c));
public int gline LESSPARAMS ((int i, int *ap));
public void null_line LESSPARAMS ((VOID_PARAM));
public POSITION forw_raw_line LESSPARAMS ((POSITION curr_pos, char **linep, int *line_lenp));
public POSITION back_raw_line LESSPARAMS ((POSITION curr_pos, char **linep, int *line_lenp));
public int rrshift LESSPARAMS ((VOID_PARAM));
public void clr_linenum LESSPARAMS ((VOID_PARAM));
public void add_lnum LESSPARAMS ((LINENUM linenum, POSITION pos));
public LINENUM find_linenum LESSPARAMS ((POSITION pos));
public POSITION find_pos LESSPARAMS ((LINENUM linenum));
public LINENUM currline LESSPARAMS ((int where));
public void lsystem LESSPARAMS ((char *cmd, char *donemsg));
public int pipe_mark LESSPARAMS ((int c, char *cmd));
public int pipe_data LESSPARAMS ((char *cmd, POSITION spos, POSITION epos));
public void init_mark LESSPARAMS ((VOID_PARAM));
public int badmark LESSPARAMS ((int c));
public void setmark LESSPARAMS ((int c, int where));
public void clrmark LESSPARAMS ((int c));
public void lastmark LESSPARAMS ((VOID_PARAM));
public void gomark LESSPARAMS ((int c));
public POSITION markpos LESSPARAMS ((int c));
public char posmark LESSPARAMS ((POSITION pos));
public void unmark LESSPARAMS ((IFILE ifile));
public void opt_o LESSPARAMS ((int type, char *s));
public void opt__O LESSPARAMS ((int type, char *s));
public void opt_j LESSPARAMS ((int type, char *s));
public void calc_jump_sline LESSPARAMS ((VOID_PARAM));
public void opt_shift LESSPARAMS ((int type, char *s));
public void calc_shift_count LESSPARAMS ((VOID_PARAM));
public void opt_k LESSPARAMS ((int type, char *s));
public void opt_t LESSPARAMS ((int type, char *s));
public void opt__T LESSPARAMS ((int type, char *s));
public void opt_p LESSPARAMS ((int type, char *s));
public void opt__P LESSPARAMS ((int type, char *s));
public void opt_b LESSPARAMS ((int type, char *s));
public void opt_i LESSPARAMS ((int type, char *s));
public void opt__V LESSPARAMS ((int type, char *s));
public void opt_D LESSPARAMS ((int type, char *s));
public void opt_x LESSPARAMS ((int type, char *s));
public void opt_quote LESSPARAMS ((int type, char *s));
public void opt_rscroll LESSPARAMS ((int type, char *s));
public void opt_query LESSPARAMS ((int type, char *s));
public int get_swindow LESSPARAMS ((VOID_PARAM));
public char * propt LESSPARAMS ((int c));
public void scan_option LESSPARAMS ((char *s));
public void toggle_option LESSPARAMS ((struct loption *o, int lower, char *s, int how_toggle));
public int opt_has_param LESSPARAMS ((struct loption *o));
public char * opt_prompt LESSPARAMS ((struct loption *o));
public int isoptpending LESSPARAMS ((VOID_PARAM));
public void nopendopt LESSPARAMS ((VOID_PARAM));
public int getnum LESSPARAMS ((char **sp, char *printopt, int *errp));
public long getfraction LESSPARAMS ((char **sp, char *printopt, int *errp));
public int get_quit_at_eof LESSPARAMS ((VOID_PARAM));
public void init_option LESSPARAMS ((VOID_PARAM));
public struct loption * findopt LESSPARAMS ((int c));
public struct loption * findopt_name LESSPARAMS ((char **p_optname, char **p_oname, int *p_err));
public int iread LESSPARAMS ((int fd, unsigned char *buf, unsigned int len));
public void intread LESSPARAMS ((VOID_PARAM));
public time_type get_time LESSPARAMS ((VOID_PARAM));
public char * errno_message LESSPARAMS ((char *filename));
public int percentage LESSPARAMS ((POSITION num, POSITION den));
public POSITION percent_pos LESSPARAMS ((POSITION pos, int percent, long fraction));
public int os9_signal LESSPARAMS ((int type, RETSIGTYPE (*handler)()));
public void put_line LESSPARAMS ((VOID_PARAM));
public void flush LESSPARAMS ((VOID_PARAM));
public int putchr LESSPARAMS ((int c));
public void putstr LESSPARAMS ((constant char *s));
public void get_return LESSPARAMS ((VOID_PARAM));
public void error LESSPARAMS ((char *fmt, PARG *parg));
public void ierror LESSPARAMS ((char *fmt, PARG *parg));
public int query LESSPARAMS ((char *fmt, PARG *parg));
public int compile_pattern LESSPARAMS ((char *pattern, int search_type, PATTERN_TYPE *comp_pattern));
public void uncompile_pattern LESSPARAMS ((PATTERN_TYPE *pattern));
public int valid_pattern LESSPARAMS ((char *pattern));
public int is_null_pattern LESSPARAMS ((PATTERN_TYPE pattern));
public int match_pattern LESSPARAMS ((PATTERN_TYPE pattern, char *tpattern, char *line, int line_len, char **sp, char **ep, int notbol, int search_type));
public POSITION position LESSPARAMS ((int sindex));
public void add_forw_pos LESSPARAMS ((POSITION pos));
public void add_back_pos LESSPARAMS ((POSITION pos));
public void pos_clear LESSPARAMS ((VOID_PARAM));
public void pos_init LESSPARAMS ((VOID_PARAM));
public int onscreen LESSPARAMS ((POSITION pos));
public int empty_screen LESSPARAMS ((VOID_PARAM));
public int empty_lines LESSPARAMS ((int s, int e));
public void get_scrpos LESSPARAMS ((struct scrpos *scrpos, int where));
public int sindex_from_sline LESSPARAMS ((int sline));
public void init_prompt LESSPARAMS ((VOID_PARAM));
public char * pr_expand LESSPARAMS ((constant char *proto, int maxwidth));
public char * eq_message LESSPARAMS ((VOID_PARAM));
public char * pr_string LESSPARAMS ((VOID_PARAM));
public char * wait_message LESSPARAMS ((VOID_PARAM));
public void init_search LESSPARAMS ((VOID_PARAM));
public void repaint_hilite LESSPARAMS ((int on));
public void clear_attn LESSPARAMS ((VOID_PARAM));
public void undo_search LESSPARAMS ((VOID_PARAM));
public void clr_hlist LESSPARAMS ((struct hilite_tree *anchor));
public void clr_hilite LESSPARAMS ((VOID_PARAM));
public void clr_filter LESSPARAMS ((VOID_PARAM));
public int is_filtered LESSPARAMS ((POSITION pos));
public POSITION next_unfiltered LESSPARAMS ((POSITION pos));
public POSITION prev_unfiltered LESSPARAMS ((POSITION pos));
public int is_hilited LESSPARAMS ((POSITION pos, POSITION epos, int nohide, int *p_matches));
public void chg_hilite LESSPARAMS ((VOID_PARAM));
public void chg_caseless LESSPARAMS ((VOID_PARAM));
public int search LESSPARAMS ((int search_type, char *pattern, int n));
public void prep_hilite LESSPARAMS ((POSITION spos, POSITION epos, int maxlines));
public void set_filter_pattern LESSPARAMS ((char *pattern, int search_type));
public int is_filtering LESSPARAMS ((VOID_PARAM));
public RETSIGTYPE winch LESSPARAMS ((int type));
public void init_signals LESSPARAMS ((int on));
public void psignals LESSPARAMS ((VOID_PARAM));
public void cleantags LESSPARAMS ((VOID_PARAM));
public int gettagtype LESSPARAMS ((VOID_PARAM));
public void findtag LESSPARAMS ((char *tag));
public POSITION tagsearch LESSPARAMS ((VOID_PARAM));
public char * nexttag LESSPARAMS ((int n));
public char * prevtag LESSPARAMS ((int n));
public int ntags LESSPARAMS ((VOID_PARAM));
public int curr_tag LESSPARAMS ((VOID_PARAM));
public int edit_tagfile LESSPARAMS ((VOID_PARAM));
public void open_getchr LESSPARAMS ((VOID_PARAM));
public void close_getchr LESSPARAMS ((VOID_PARAM));
public int getchr LESSPARAMS ((VOID_PARAM));

6
help.c
View File

@ -1,4 +1,4 @@
/* This file was generated by mkhelp from less.hlp */
/* This file was generated by mkhelp.pl from less.hlp at 17:31 on 2017/11/13 */
#include "less.h"
constant char helpdata[] = {
'\n',
@ -72,10 +72,12 @@ constant char helpdata[] = {
' ',' ',' ',' ',' ',' ',' ',' ','E','a','c','h',' ','"','f','i','n','d',' ','o','p','e','n',' ','b','r','a','c','k','e','t','"',' ','c','o','m','m','a','n','d',' ','g','o','e','s',' ','b','a','c','k','w','a','r','d',' ','t','o',' ','t','h','e',' ','o','p','e','n',' ','b','r','a','c','k','e','t',' ','\n',
' ',' ',' ',' ',' ',' ',' ',' ',' ',' ','m','a','t','c','h','i','n','g',' ','t','h','e',' ','(','_','\b','N','-','t','h',')',' ','c','l','o','s','e',' ','b','r','a','c','k','e','t',' ','i','n',' ','t','h','e',' ','b','o','t','t','o','m',' ','l','i','n','e','.','\n',
'\n',
' ',' ','m','_','\b','<','_','\b','l','_','\b','e','_','\b','t','_','\b','t','_','\b','e','_','\b','r','_','\b','>',' ',' ',' ',' ',' ',' ',' ',' ',' ',' ',' ',' ','M','a','r','k',' ','t','h','e',' ','c','u','r','r','e','n','t',' ','p','o','s','i','t','i','o','n',' ','w','i','t','h',' ','<','l','e','t','t','e','r','>','.','\n',
' ',' ','m','_','\b','<','_','\b','l','_','\b','e','_','\b','t','_','\b','t','_','\b','e','_','\b','r','_','\b','>',' ',' ',' ',' ',' ',' ',' ',' ',' ',' ',' ',' ','M','a','r','k',' ','t','h','e',' ','c','u','r','r','e','n','t',' ','t','o','p',' ','l','i','n','e',' ','w','i','t','h',' ','<','l','e','t','t','e','r','>','.','\n',
' ',' ','M','_','\b','<','_','\b','l','_','\b','e','_','\b','t','_','\b','t','_','\b','e','_','\b','r','_','\b','>',' ',' ',' ',' ',' ',' ',' ',' ',' ',' ',' ',' ','M','a','r','k',' ','t','h','e',' ','c','u','r','r','e','n','t',' ','b','o','t','t','o','m',' ','l','i','n','e',' ','w','i','t','h',' ','<','l','e','t','t','e','r','>','.','\n',
' ',' ','\'','_','\b','<','_','\b','l','_','\b','e','_','\b','t','_','\b','t','_','\b','e','_','\b','r','_','\b','>',' ',' ',' ',' ',' ',' ',' ',' ',' ',' ',' ',' ','G','o',' ','t','o',' ','a',' ','p','r','e','v','i','o','u','s','l','y',' ','m','a','r','k','e','d',' ','p','o','s','i','t','i','o','n','.','\n',
' ',' ','\'','\'',' ',' ',' ',' ',' ',' ',' ',' ',' ',' ',' ',' ',' ',' ',' ',' ',' ',' ',' ','G','o',' ','t','o',' ','t','h','e',' ','p','r','e','v','i','o','u','s',' ','p','o','s','i','t','i','o','n','.','\n',
' ',' ','^','X','^','X',' ',' ',' ',' ',' ',' ',' ',' ',' ',' ',' ',' ',' ',' ',' ',' ',' ','S','a','m','e',' ','a','s',' ','\'','.','\n',
' ',' ','E','S','C','-','M','_','\b','<','_','\b','l','_','\b','e','_','\b','t','_','\b','t','_','\b','e','_','\b','r','_','\b','>',' ',' ',' ',' ',' ',' ',' ',' ','C','l','e','a','r',' ','a',' ','m','a','r','k','.','\n',
' ',' ',' ',' ',' ',' ',' ',' ','-','-','-','-','-','-','-','-','-','-','-','-','-','-','-','-','-','-','-','-','-','-','-','-','-','-','-','-','-','-','-','-','-','-','-','-','-','-','-','-','-','-','-','-','-','-','-','-','-','-','-','\n',
' ',' ',' ',' ',' ',' ',' ',' ','A',' ','m','a','r','k',' ','i','s',' ','a','n','y',' ','u','p','p','e','r','-','c','a','s','e',' ','o','r',' ','l','o','w','e','r','-','c','a','s','e',' ','l','e','t','t','e','r','.','\n',
' ',' ',' ',' ',' ',' ',' ',' ','C','e','r','t','a','i','n',' ','m','a','r','k','s',' ','a','r','e',' ','p','r','e','d','e','f','i','n','e','d',':','\n',

49
ifile.c
View File

@ -24,14 +24,16 @@
extern IFILE curr_ifile;
struct ifile {
struct ifile *h_next; /* Links for command line list */
struct ifile *h_next; /* Links for command line list */
struct ifile *h_prev;
char *h_filename; /* Name of the file */
void *h_filestate; /* File state (used in ch.c) */
int h_index; /* Index within command line list */
int h_hold; /* Hold count */
char h_opened; /* Has this ifile been opened? */
struct scrpos h_scrpos; /* Saved position within the file */
char *h_filename; /* Name of the file */
void *h_filestate; /* File state (used in ch.c) */
int h_index; /* Index within command line list */
int h_hold; /* Hold count */
char h_opened; /* Has this ifile been opened? */
struct scrpos h_scrpos; /* Saved position within the file */
void *h_altpipe; /* Alt pipe */
char *h_altfilename; /* Alt filename */
};
/*
@ -328,6 +330,39 @@ set_filestate(ifile, filestate)
int_ifile(ifile)->h_filestate = filestate;
}
public void
set_altpipe(ifile, p)
IFILE ifile;
void *p;
{
int_ifile(ifile)->h_altpipe = p;
}
public void *
get_altpipe(ifile)
IFILE ifile;
{
return (int_ifile(ifile)->h_altpipe);
}
public void
set_altfilename(ifile, altfilename)
IFILE ifile;
char *altfilename;
{
struct ifile *p = int_ifile(ifile);
if (p->h_altfilename != NULL)
free(p->h_altfilename);
p->h_altfilename = altfilename;
}
public char *
get_altfilename(ifile)
IFILE ifile;
{
return (int_ifile(ifile)->h_altfilename);
}
#if 0
public void
if_dump()

11
input.c
View File

@ -7,7 +7,6 @@
* For more information, see the README file.
*/
/*
* High level routines dealing with getting lines of input
* from the file being viewed.
@ -50,6 +49,7 @@ forw_line(curr_pos)
int c;
int blankline;
int endline;
int chopped;
int backchars;
get_forw_line:
@ -143,6 +143,7 @@ forw_line(curr_pos)
/*
* Read each character in the line and append to the line buffer.
*/
chopped = FALSE;
for (;;)
{
if (ABORT_SIGS())
@ -193,6 +194,7 @@ forw_line(curr_pos)
new_pos = ch_tell();
endline = TRUE;
quit_if_one_screen = FALSE;
chopped = TRUE;
} else
{
new_pos = ch_tell() - backchars;
@ -203,7 +205,7 @@ forw_line(curr_pos)
c = ch_forw_get();
}
pdone(endline, 1);
pdone(endline, chopped, 1);
#if HILITE_SEARCH
if (is_filtered(base_pos))
@ -255,6 +257,7 @@ back_line(curr_pos)
POSITION new_pos, begin_new_pos, base_pos;
int c;
int endline;
int chopped;
int backchars;
get_back_line:
@ -359,6 +362,7 @@ back_line(curr_pos)
loop:
begin_new_pos = new_pos;
(void) ch_seek(new_pos);
chopped = FALSE;
do
{
@ -391,6 +395,7 @@ back_line(curr_pos)
if (chopline || hshift > 0)
{
endline = TRUE;
chopped = TRUE;
quit_if_one_screen = FALSE;
break;
}
@ -405,7 +410,7 @@ back_line(curr_pos)
}
} while (new_pos < curr_pos);
pdone(endline, 0);
pdone(endline, chopped, 0);
#if HILITE_SEARCH
if (is_filtered(base_pos))

23
jump.c
View File

@ -51,7 +51,7 @@ jump_forw()
end_pos = ch_tell();
pos = back_line(end_pos);
if (pos == NULL_POSITION)
jump_loc((POSITION)0, sc_height-1);
jump_loc(ch_zero(), sc_height-1);
else
{
jump_loc(pos, sc_height-1);
@ -122,11 +122,11 @@ repaint()
* Start at the line currently at the top of the screen
* and redisplay the screen.
*/
get_scrpos(&scrpos);
get_scrpos(&scrpos, TOP);
pos_clear();
if (scrpos.pos == NULL_POSITION)
/* Screen hasn't been drawn yet. */
jump_loc(0, 0);
jump_loc(ch_zero(), 1);
else
jump_loc(scrpos.pos, scrpos.ln);
}
@ -201,13 +201,14 @@ jump_loc(pos, sline)
int sline;
{
int nline;
int sindex;
POSITION tpos;
POSITION bpos;
/*
* Normalize sline.
*/
sline = adjsline(sline);
sindex = sindex_from_sline(sline);
if ((nline = onscreen(pos)) >= 0)
{
@ -215,10 +216,10 @@ jump_loc(pos, sline)
* The line is currently displayed.
* Just scroll there.
*/
nline -= sline;
nline -= sindex;
if (nline > 0)
forw(nline, position(BOTTOM_PLUS_ONE), 1, 0, 0);
else
else if (nline < 0)
back(-nline, position(TOP), 1, 0);
#if HILITE_SEARCH
if (show_attn)
@ -251,7 +252,7 @@ jump_loc(pos, sline)
* call forw() and put the desired line at the
* sline-th line on the screen.
*/
for (nline = 0; nline < sline; nline++)
for (nline = 0; nline < sindex; nline++)
{
if (bpos != NULL_POSITION && pos <= bpos)
{
@ -260,7 +261,7 @@ jump_loc(pos, sline)
* close enough to the current screen
* that we can just scroll there after all.
*/
forw(sc_height-sline+nline-1, bpos, 1, 0, 0);
forw(sc_height-sindex+nline-1, bpos, 1, 0, 0);
#if HILITE_SEARCH
if (show_attn)
repaint_hilite(1);
@ -282,16 +283,16 @@ jump_loc(pos, sline)
lastmark();
squished = 0;
screen_trashed = 0;
forw(sc_height-1, pos, 1, 0, sline-nline);
forw(sc_height-1, pos, 1, 0, sindex-nline);
} else
{
/*
* The desired line is before the current screen.
* Move forward in the file far enough so that we
* can call back() and put the desired line at the
* sline-th line on the screen.
* sindex-th line on the screen.
*/
for (nline = sline; nline < sc_height - 1; nline++)
for (nline = sindex; nline < sc_height - 1; nline++)
{
pos = forw_line(pos);
if (pos == NULL_POSITION)

7
less.h
View File

@ -514,7 +514,6 @@ struct wchar_range_table
#define CH_HELPFILE 010
#define CH_NODATA 020 /* Special case for zero length files */
#define ch_zero() ((POSITION)0)
#define FAKE_HELPFILE "@/\\less/\\help/\\file/\\@"
@ -539,6 +538,6 @@ struct hilite_tree;
#include "funcs.h"
/* Functions not included in funcs.h */
void postoa();
void linenumtoa();
void inttoa();
void postoa LESSPARAMS ((POSITION, char*));
void linenumtoa LESSPARAMS ((LINENUM, char*));
void inttoa LESSPARAMS ((int, char*));

4
less.hlp
View File

@ -69,10 +69,12 @@
Each "find open bracket" command goes backward to the open bracket
matching the (_N-th) close bracket in the bottom line.
m_<_l_e_t_t_e_r_> Mark the current position with <letter>.
m_<_l_e_t_t_e_r_> Mark the current top line with <letter>.
M_<_l_e_t_t_e_r_> Mark the current bottom line with <letter>.
'_<_l_e_t_t_e_r_> Go to a previously marked position.
'' Go to the previous position.
^X^X Same as '.
ESC-M_<_l_e_t_t_e_r_> Clear a mark.
---------------------------------------------------
A mark is any upper-case or lower-case letter.
Certain marks are predefined:

267
less.man
View File

@ -29,7 +29,7 @@ LESS(1) General Commands Manual LESS(1)
a hardcopy terminal, lines which should be printed at the top of the
screen are prefixed with a caret.)
Commands are based on both more and vi. Commands may be preceded by a
Commands are based on both more and vi. Commands may be preceded by a
decimal number, called N in the descriptions below. The number is used
by some commands, as indicated.
@ -175,19 +175,27 @@ LESS(1) General Commands Manual LESS(1)
"ESC ^B < >" could be used to go backward to the < which matches
the > in the bottom displayed line.
m Followed by any lowercase letter, marks the current position
with that letter.
m Followed by any lowercase or uppercase letter, marks the first
displayed line with that letter. If the status column is
enabled via the -J option, the status column shows the marked
line.
' (Single quote.) Followed by any lowercase letter, returns to
the position which was previously marked with that letter. Fol-
lowed by another single quote, returns to the position at which
the last "large" movement command was executed. Followed by a ^
or $, jumps to the beginning or end of the file respectively.
Marks are preserved when a new file is examined, so the ' com-
mand can be used to switch between input files.
M Acts like m, except the last displayed line is marked rather
than the first displayed line.
' (Single quote.) Followed by any lowercase or uppercase letter,
returns to the position which was previously marked with that
letter. Followed by another single quote, returns to the posi-
tion at which the last "large" movement command was executed.
Followed by a ^ or $, jumps to the beginning or end of the file
respectively. Marks are preserved when a new file is examined,
so the ' command can be used to switch between input files.
^X^X Same as single quote.
ESC-m Followed by any lowercase or uppercase letter, clears the mark
identified by that letter.
/pattern
Search forward in the file for the N-th line containing the pat-
tern. N defaults to 1. The pattern is a regular expression, as
@ -388,7 +396,7 @@ LESS(1) General Commands Manual LESS(1)
V Prints the version number of less being run.
q or Q or :q or :Q or ZZ
Exits less.
Exits less.
The following four commands may or may not be valid, depending on your
particular installation.
@ -412,10 +420,12 @@ LESS(1) General Commands Manual LESS(1)
| <m> shell-command
<m> represents any mark letter. Pipes a section of the input
file to the given shell command. The section of the file to be
piped is between the first line on the current screen and the
position marked by the letter. <m> may also be ^ or $ to indi-
cate beginning or end of file respectively. If <m> is . or new-
line, the current screen is piped.
piped is between the position marked by the letter and the cur-
rent screen. The entire current screen is included, regardless
of whether the marked position is before or after the current
screen. <m> may also be ^ or $ to indicate beginning or end of
file respectively. If <m> is . or newline, the current screen
is piped.
s filename
Save the input to a file. This only works if the input is a
@ -437,11 +447,11 @@ LESS(1) General Commands Manual LESS(1)
Options are also taken from the environment variable "LESS". For exam-
ple, to avoid typing "less -options ..." each time less is invoked, you
might tell csh:
might tell csh:
setenv LESS "-options"
or if you use sh:
or if you use sh:
LESS="-options"; export LESS
@ -518,7 +528,7 @@ LESS(1) General Commands Manual LESS(1)
from the bottom of the screen.
-C or --CLEAR-SCREEN
Same as -c, for compatibility with older versions of less.
Same as -c, for compatibility with older versions of less.
-d or --dumb
The -d option suppresses the error message normally displayed if
@ -534,8 +544,10 @@ LESS(1) General Commands Manual LESS(1)
color is a pair of numbers separated by a period. The first
number selects the foreground color and the second selects the
background color of the text. A single number N is the same as
N.M, where M is the normal background color. x may also be a to
toggle strict ANSI sequence rendering (SGR mode).
N.M, where M is the normal background color. The color may
start or end with u to use underline (with the normal color, if
by itself), if the system supports it (Windows only). x may
also be a to toggle strict ANSI sequence rendering (SGR mode).
-e or --quit-at-eof
@ -613,9 +625,9 @@ LESS(1) General Commands Manual LESS(1)
-J or --status-column
Displays a status column at the left edge of the screen. The
status column shows the lines that matched the current search.
The status column is also used if the -w or -W option is in
effect.
status column shows the lines that matched the current search,
and any lines that are marked (via the m or M command). The
status column is also used if the -w or -W option is in effect.
-kfilename or --lesskey-file=filename
Causes less to open and interpret the named file as a lesskey
@ -642,7 +654,7 @@ LESS(1) General Commands Manual LESS(1)
into the file. By default, less prompts with a colon.
-M or --LONG-PROMPT
Causes less to prompt even more verbosely than more.
Causes less to prompt even more verbosely than more.
-n or --line-numbers
Suppresses line numbers. The default (to use line numbers) may
@ -671,7 +683,7 @@ LESS(1) General Commands Manual LESS(1)
If no log file has been specified, the -o and -O options can be
used from within less to specify a log file. Without a file
name, they will simply report the name of the log file. The "s"
command is equivalent to specifying -o from within less.
command is equivalent to specifying -o from within less.
-ppattern or --pattern=pattern
The -p option on the command line is equivalent to specifying
@ -691,110 +703,111 @@ LESS(1) General Commands Manual LESS(1)
-Ph changes the prompt for the help screen.
-P= changes the message printed by the = command.
-Pw changes the message printed while waiting for data (in the
F command). All prompt strings consist of a sequence of letters
and special escape sequences. See the section on PROMPTS for
more details.
F command).
All prompt strings consist of a sequence of letters and special
escape sequences. See the section on PROMPTS for more details.
-q or --quiet or --silent
Causes moderately "quiet" operation: the terminal bell is not
Causes moderately "quiet" operation: the terminal bell is not
rung if an attempt is made to scroll past the end of the file or
before the beginning of the file. If the terminal has a "visual
bell", it is used instead. The bell will be rung on certain
other errors, such as typing an invalid character. The default
bell", it is used instead. The bell will be rung on certain
other errors, such as typing an invalid character. The default
is to ring the terminal bell in all such cases.
-Q or --QUIET or --SILENT
Causes totally "quiet" operation: the terminal bell is never
Causes totally "quiet" operation: the terminal bell is never
rung.
-r or --raw-control-chars
Causes "raw" control characters to be displayed. The default is
to display control characters using the caret notation; for
to display control characters using the caret notation; for
example, a control-A (octal 001) is displayed as "^A". Warning:
when the -r option is used, less cannot keep track of the actual
appearance of the screen (since this depends on how the screen
appearance of the screen (since this depends on how the screen
responds to each type of control character). Thus, various dis-
play problems may result, such as long lines being split in the
play problems may result, such as long lines being split in the
wrong place.
-R or --RAW-CONTROL-CHARS
Like -r, but only ANSI "color" escape sequences are output in
Like -r, but only ANSI "color" escape sequences are output in
"raw" form. Unlike -r, the screen appearance is maintained cor-
rectly in most cases. ANSI "color" escape sequences are
sequences of the form:
ESC [ ... m
where the "..." is zero or more color specification characters
For the purpose of keeping track of screen appearance, ANSI
color escape sequences are assumed to not move the cursor. You
can make less think that characters other than "m" can end ANSI
color escape sequences by setting the environment variable
where the "..." is zero or more color specification characters
For the purpose of keeping track of screen appearance, ANSI
color escape sequences are assumed to not move the cursor. You
can make less think that characters other than "m" can end ANSI
color escape sequences by setting the environment variable
LESSANSIENDCHARS to the list of characters which can end a color
escape sequence. And you can make less think that characters
other than the standard ones may appear between the ESC and the
m by setting the environment variable LESSANSIMIDCHARS to the
escape sequence. And you can make less think that characters
other than the standard ones may appear between the ESC and the
m by setting the environment variable LESSANSIMIDCHARS to the
list of characters which can appear.
-s or --squeeze-blank-lines
Causes consecutive blank lines to be squeezed into a single
Causes consecutive blank lines to be squeezed into a single
blank line. This is useful when viewing nroff output.
-S or --chop-long-lines
Causes lines longer than the screen width to be chopped (trun-
Causes lines longer than the screen width to be chopped (trun-
cated) rather than wrapped. That is, the portion of a long line
that does not fit in the screen width is not shown. The default
is to wrap long lines; that is, display the remainder on the
is to wrap long lines; that is, display the remainder on the
next line.
-ttag or --tag=tag
The -t option, followed immediately by a TAG, will edit the file
containing that tag. For this to work, tag information must be
available; for example, there may be a file in the current
containing that tag. For this to work, tag information must be
available; for example, there may be a file in the current
directory called "tags", which was previously built by ctags (1)
or an equivalent command. If the environment variable LESSGLOB-
ALTAGS is set, it is taken to be the name of a command compati-
ble with global (1), and that command is executed to find the
ALTAGS is set, it is taken to be the name of a command compati-
ble with global (1), and that command is executed to find the
tag. (See http://www.gnu.org/software/global/global.html). The
-t option may also be specified from within less (using the -
command) as a way of examining a new file. The command ":t" is
equivalent to specifying -t from within less.
-t option may also be specified from within less (using the -
command) as a way of examining a new file. The command ":t" is
equivalent to specifying -t from within less.
-Ttagsfile or --tag-file=tagsfile
Specifies a tags file to be used instead of "tags".
-u or --underline-special
Causes backspaces and carriage returns to be treated as print-
able characters; that is, they are sent to the terminal when
Causes backspaces and carriage returns to be treated as print-
able characters; that is, they are sent to the terminal when
they appear in the input.
-U or --UNDERLINE-SPECIAL
Causes backspaces, tabs and carriage returns to be treated as
control characters; that is, they are handled as specified by
the -r option.
Causes backspaces, tabs, carriage returns and "formatting char-
acters" (as defined by Unicode) to be treated as control charac-
ters; that is, they are handled as specified by the -r option.
By default, if neither -u nor -U is given, backspaces which
appear adjacent to an underscore character are treated spe-
cially: the underlined text is displayed using the terminal's
hardware underlining capability. Also, backspaces which appear
between two identical characters are treated specially: the
overstruck text is printed using the terminal's hardware bold-
face capability. Other backspaces are deleted, along with the
By default, if neither -u nor -U is given, backspaces which
appear adjacent to an underscore character are treated spe-
cially: the underlined text is displayed using the terminal's
hardware underlining capability. Also, backspaces which appear
between two identical characters are treated specially: the
overstruck text is printed using the terminal's hardware bold-
face capability. Other backspaces are deleted, along with the
preceding character. Carriage returns immediately followed by a
newline are deleted. Other carriage returns are handled as
specified by the -r option. Text which is overstruck or under-
newline are deleted. Other carriage returns are handled as
specified by the -r option. Text which is overstruck or under-
lined can be searched for if neither -u nor -U is in effect.
-V or --version
Displays the version number of less.
Displays the version number of less.
-w or --hilite-unread
Temporarily highlights the first "new" line after a forward
Temporarily highlights the first "new" line after a forward
movement of a full page. The first "new" line is the line imme-
diately following the line previously at the bottom of the
diately following the line previously at the bottom of the
screen. Also highlights the target line after a g or p command.
The highlight is removed at the next command which causes move-
ment. The entire line is highlighted, unless the -J option is
The highlight is removed at the next command which causes move-
ment. The entire line is highlighted, unless the -J option is
in effect, in which case only the status column is highlighted.
-W or --HILITE-UNREAD
@ -802,48 +815,48 @@ LESS(1) General Commands Manual LESS(1)
forward movement command larger than one line.
-xn,... or --tabs=n,...
Sets tab stops. If only one n is specified, tab stops are set
at multiples of n. If multiple values separated by commas are
specified, tab stops are set at those positions, and then con-
tinue with the same spacing as the last two. For example,
-x9,17 will set tabs at positions 9, 17, 25, 33, etc. The
Sets tab stops. If only one n is specified, tab stops are set
at multiples of n. If multiple values separated by commas are
specified, tab stops are set at those positions, and then con-
tinue with the same spacing as the last two. For example,
-x9,17 will set tabs at positions 9, 17, 25, 33, etc. The
default for n is 8.
-X or --no-init
Disables sending the termcap initialization and deinitialization
strings to the terminal. This is sometimes desirable if the
deinitialization string does something unnecessary, like clear-
strings to the terminal. This is sometimes desirable if the
deinitialization string does something unnecessary, like clear-
ing the screen.
-yn or --max-forw-scroll=n
Specifies a maximum number of lines to scroll forward. If it is
necessary to scroll forward more than n lines, the screen is
repainted instead. The -c or -C option may be used to repaint
from the top of the screen if desired. By default, any forward
necessary to scroll forward more than n lines, the screen is
repainted instead. The -c or -C option may be used to repaint
from the top of the screen if desired. By default, any forward
movement causes scrolling.
-[z]n or --window=n
Changes the default scrolling window size to n lines. The
-zn or --window=n or -n
Changes the default scrolling window size to n lines. The
default is one screenful. The z and w commands can also be used
to change the window size. The "z" may be omitted for compati-
bility with some versions of more. If the number n is negative,
it indicates n lines less than the current screen size. For
to change the window size. The "z" may be omitted for compati-
bility with some versions of more. If the number n is negative,
it indicates n lines less than the current screen size. For
example, if the screen is 24 lines, -z-4 sets the scrolling win-
dow to 20 lines. If the screen is resized to 40 lines, the
dow to 20 lines. If the screen is resized to 40 lines, the
scrolling window automatically changes to 36 lines.
-"cc or --quotes=cc
Changes the filename quoting character. This may be necessary
if you are trying to name a file which contains both spaces and
quote characters. Followed by a single character, this changes
the quote character to that character. Filenames containing a
-"cc or --quotes=cc
Changes the filename quoting character. This may be necessary
if you are trying to name a file which contains both spaces and
quote characters. Followed by a single character, this changes
the quote character to that character. Filenames containing a
space should then be surrounded by that character rather than by
double quotes. Followed by two characters, changes the open
quote to the first character, and the close quote to the second
double quotes. Followed by two characters, changes the open
quote to the first character, and the close quote to the second
character. Filenames containing a space should then be preceded
by the open quote character and followed by the close quote
character. Note that even after the quote characters are
changed, this option remains -" (a dash followed by a double
by the open quote character and followed by the close quote
character. Note that even after the quote characters are
changed, this option remains -" (a dash followed by a double
quote).
-~ or --tilde
@ -853,46 +866,52 @@ LESS(1) General Commands Manual LESS(1)
-# or --shift
Specifies the default number of positions to scroll horizontally
in the RIGHTARROW and LEFTARROW commands. If the number speci-
fied is zero, it sets the default number of positions to one
in the RIGHTARROW and LEFTARROW commands. If the number speci-
fied is zero, it sets the default number of positions to one
half of the screen width. Alternately, the number may be speci-
fied as a fraction of the width of the screen, starting with a
decimal point: .5 is half of the screen width, .3 is three
tenths of the screen width, and so on. If the number is speci-
fied as a fraction, the actual number of scroll positions is
recalculated if the terminal window is resized, so that the
actual scroll remains at the specified fraction of the screen
fied as a fraction of the width of the screen, starting with a
decimal point: .5 is half of the screen width, .3 is three
tenths of the screen width, and so on. If the number is speci-
fied as a fraction, the actual number of scroll positions is
recalculated if the terminal window is resized, so that the
actual scroll remains at the specified fraction of the screen
width.
--follow-name
Normally, if the input file is renamed while an F command is
executing, less will continue to display the contents of the
original file despite its name change. If --follow-name is
Normally, if the input file is renamed while an F command is
executing, less will continue to display the contents of the
original file despite its name change. If --follow-name is
specified, during an F command less will periodically attempt to
reopen the file by name. If the reopen succeeds and the file is
a different file from the original (which means that a new file
has been created with the same name as the original (now
a different file from the original (which means that a new file
has been created with the same name as the original (now
renamed) file), less will display the contents of that new file.
--no-keypad
Disables sending the keypad initialization and deinitialization
Disables sending the keypad initialization and deinitialization
strings to the terminal. This is sometimes useful if the keypad
strings make the numeric keypad behave in an undesirable manner.
--use-backslash
This option changes the interpretations of options which follow
This option changes the interpretations of options which follow
this one. After the --use-backslash option, any backslash in an
option string is removed and the following character is taken
literally. This allows a dollar sign to be included in option
option string is removed and the following character is taken
literally. This allows a dollar sign to be included in option
strings.
--rscroll
This option changes the character used to mark truncated lines.
It may begin with a two-character attribute indicator like LESS-
BINFMT does. If there is no attribute indicator, standout is
used. If set to "-", truncated lines are not marked.
-- A command line argument of "--" marks the end of option argu-
ments. Any arguments following this are interpreted as file-
names. This can be useful when viewing a file whose name begins
with a "-" or "+".
+ If a command line option begins with +, the remainder of that
option is taken to be an initial command to less. For example,
option is taken to be an initial command to less. For example,
+G tells less to start at the end of the file rather than the
beginning, and +/xyz tells it to start at the first occurrence
of "xyz" in the file. As a special case, +<number> acts like
@ -1019,7 +1038,7 @@ LESS(1) General Commands Manual LESS(1)
INPUT PREPROCESSOR
You may define an "input preprocessor" for less. Before less opens a
You may define an "input preprocessor" for less. Before less opens a
file, it first gives your input preprocessor a chance to modify the way
the contents of the file are displayed. An input preprocessor is sim-
ply an executable program (or shell script), which writes the contents
@ -1077,7 +1096,7 @@ LESS(1) General Commands Manual LESS(1)
types of compressed files, and so on.
It is also possible to set up an input preprocessor to pipe the file
data directly to less, rather than putting the data into a replacement
data directly to less, rather than putting the data into a replacement
file. This avoids the need to decompress the entire file before start-
ing to view it. An input preprocessor that works this way is called an
input pipe. An input pipe, instead of writing the name of a replace-
@ -1108,10 +1127,10 @@ LESS(1) General Commands Manual LESS(1)
interpreted as meaning there is no replacement, and the original file
is used. To avoid this, if LESSOPEN starts with two vertical bars, the
exit status of the script becomes meaningful. If the exit status is
zero, the output is considered to be replacement text, even if it
zero, the output is considered to be replacement text, even if it is
empty. If the exit status is nonzero, any output is ignored and the
original file is used. For compatibility with previous versions of
less, if LESSOPEN starts with only one vertical bar, the exit status of
less, if LESSOPEN starts with only one vertical bar, the exit status of
the preprocessor is ignored.
When an input pipe is used, a LESSCLOSE postprocessor can be used, but
@ -1119,7 +1138,7 @@ LESS(1) General Commands Manual LESS(1)
up. In this case, the replacement file name passed to the LESSCLOSE
postprocessor is "-".
For compatibility with previous versions of less, the input preproces-
For compatibility with previous versions of less, the input preproces-
sor or pipe is not used if less is viewing standard input. However, if
the first character of LESSOPEN is a dash (-), the input preprocessor
is used on standard input as well as other files. In this case, the
@ -1550,7 +1569,7 @@ LESS(1) General Commands Manual LESS(1)
LESSHISTFILE
Name of the history file used to remember search commands and
shell commands between invocations of less. If set to "-" or
shell commands between invocations of less. If set to "-" or
"/dev/null", a history file is not used. The default is
"$HOME/.lesshst" on Unix systems, "$HOME/_lesshst" on DOS and
Windows systems, or "$HOME/lesshst.ini" or "$INIT/lesshst.ini"
@ -1645,4 +1664,4 @@ LESS(1) General Commands Manual LESS(1)
Version 491: 07 Apr 2017 LESS(1)
Version 529: 13 Nov 2017 LESS(1)

75
less.nro
View File

@ -1,4 +1,4 @@
.TH LESS 1 "Version 491: 07 Apr 2017"
.TH LESS 1 "Version 529: 13 Nov 2017"
.SH NAME
less \- opposite of more
.SH SYNOPSIS
@ -44,7 +44,7 @@ of the screen are prefixed with a caret.)
Commands are based on both
.I more
and
.I vi.
.IR vi .
Commands may be preceded by a decimal number,
called N in the descriptions below.
The number is used by some commands, as indicated.
@ -174,11 +174,16 @@ respectively.
For example, "ESC ^B < >" could be used to
go backward to the < which matches the > in the bottom displayed line.
.IP m
Followed by any lowercase letter,
marks the current position with that letter.
Followed by any lowercase or uppercase letter,
marks the first displayed line with that letter.
If the status column is enabled via the \-J option,
the status column shows the marked line.
.IP M
Acts like m, except the last displayed line is marked
rather than the first displayed line.
.IP "'"
(Single quote.)
Followed by any lowercase letter, returns to the position which
Followed by any lowercase or uppercase letter, returns to the position which
was previously marked with that letter.
Followed by another single quote, returns to the position at
which the last "large" movement command was executed.
@ -188,6 +193,9 @@ Marks are preserved when a new file is examined,
so the ' command can be used to switch between input files.
.IP "^X^X"
Same as single quote.
.IP "ESC-m"
Followed by any lowercase or uppercase letter,
clears the mark identified by that letter.
.IP /pattern
Search forward in the file for the N-th line containing the pattern.
N defaults to 1.
@ -392,7 +400,7 @@ Prints the version number of
being run.
.IP "q or Q or :q or :Q or ZZ"
Exits
.I less.
.IR less .
.PP
The following
four
@ -417,8 +425,10 @@ On MS-DOS and OS/2 systems, the shell is the normal command processor.
.IP "| <m> shell-command"
<m> represents any mark letter.
Pipes a section of the input file to the given shell command.
The section of the file to be piped is between the first line on
the current screen and the position marked by the letter.
The section of the file to be piped is between the position marked by
the letter and the current screen.
The entire current screen is included, regardless of whether the
marked position is before or after the current screen.
<m> may also be ^ or $ to indicate beginning or end of file respectively.
If <m> is \&.\& or newline, the current screen is piped.
.IP "s filename"
@ -449,12 +459,12 @@ For example,
to avoid typing "less \-options \&...\&" each time
.I less
is invoked, you might tell
.I csh:
.IR csh :
.sp
setenv LESS "\-options"
.sp
or if you use
.I sh:
.IR sh :
.sp
LESS="\-options"; export LESS
.sp
@ -532,7 +542,7 @@ By default,
full screen repaints are done by scrolling from the bottom of the screen.
.IP "\-C or \-\-CLEAR-SCREEN"
Same as \-c, for compatibility with older versions of
.I less.
.IR less .
.IP "\-d or \-\-dumb"
The \-d option suppresses the error message
normally displayed if the terminal is dumb;
@ -551,6 +561,8 @@ The first number selects the foreground color and the second selects
the background color of the text.
A single number \fIN\fP is the same as \fIN.M\fP,
where \fIM\fP is the normal background color.
The color may start or end with \fBu\fP to use underline (with the normal
color, if by itself), if the system supports it (Windows only).
\fBx\fP may also be \fBa\fP to toggle strict ANSI sequence rendering (SGR mode).
.IP "\-e or \-\-quit-at-eof"
@ -635,7 +647,8 @@ However nonrepeated searches (invoked with "/" or "?")
always begin at the start or end of the current screen respectively.
.IP "\-J or \-\-status-column"
Displays a status column at the left edge of the screen.
The status column shows the lines that matched the current search.
The status column shows the lines that matched the current search,
and any lines that are marked (via the m or M command).
The status column is also used if the \-w or \-W option is in effect.
.IP "\-k\fIfilename\fP or \-\-lesskey-file=\fIfilename\fP"
Causes
@ -677,7 +690,7 @@ prompts with a colon.
Causes
.I less
to prompt even more verbosely than
.I more.
.IR more .
.IP "\-n or \-\-line-numbers"
Suppresses line numbers.
The default (to use line numbers) may cause
@ -710,7 +723,7 @@ the \-o and \-O options can be used from within
to specify a log file.
Without a file name, they will simply report the name of the log file.
The "s" command is equivalent to specifying \-o from within
.I less.
.IR less .
.IP "\-p\fIpattern\fP or \-\-pattern=\fIpattern\fP"
The \-p option on the command line is equivalent to
specifying +/\fIpattern\fP;
@ -733,6 +746,7 @@ to that string.
\-Ph changes the prompt for the help screen.
\-P= changes the message printed by the = command.
\-Pw changes the message printed while waiting for data (in the F command).
All prompt strings consist of a sequence of
letters and special escape sequences.
See the section on PROMPTS for more details.
@ -808,15 +822,15 @@ The \-t option may also be specified from within
.I less
(using the \- command) as a way of examining a new file.
The command ":t" is equivalent to specifying \-t from within
.I less.
.IR less .
.IP "\-T\fItagsfile\fP or \-\-tag-file=\fItagsfile\fP"
Specifies a tags file to be used instead of "tags".
.IP "\-u or \-\-underline-special"
Causes backspaces and carriage returns to be treated as printable characters;
that is, they are sent to the terminal when they appear in the input.
.IP "\-U or \-\-UNDERLINE-SPECIAL"
Causes backspaces, tabs and carriage returns to be
treated as control characters;
Causes backspaces, tabs, carriage returns and "formatting characters"
(as defined by Unicode) to be treated as control characters;
that is, they are handled as specified by the \-r option.
.sp
By default, if neither \-u nor \-U is given,
@ -835,7 +849,7 @@ Text which is overstruck or underlined can be searched for
if neither \-u nor \-U is in effect.
.IP "\-V or \-\-version"
Displays the version number of
.I less.
.IR less .
.IP "\-w or \-\-hilite-unread"
Temporarily highlights the first "new" line after a forward movement
of a full page.
@ -868,12 +882,12 @@ the screen is repainted instead.
The \-c or \-C option may be used to repaint from the top of
the screen if desired.
By default, any forward movement causes scrolling.
.IP "\-[z]\fIn\fP or \-\-window=\fIn\fP"
.IP "\-z\fIn\fP or \-\-window=\fIn\fP or \-\fIn\fP"
Changes the default scrolling window size to \fIn\fP lines.
The default is one screenful.
The z and w commands can also be used to change the window size.
The "z" may be omitted for compatibility with some versions of
.I more.
.IR more .
If the number
.I n
is negative, it indicates
@ -882,7 +896,7 @@ lines less than the current screen size.
For example, if the screen is 24 lines, \fI\-z\-4\fP sets the
scrolling window to 20 lines. If the screen is resized to 40 lines,
the scrolling window automatically changes to 36 lines.
.IP "\-\fI\(dqcc\fP\ or\ \-\-quotes=\fIcc\fP"
.IP "\-\(dq\fIcc\fP\ or\ \-\-quotes=\fIcc\fP"
Changes the filename quoting character.
This may be necessary if you are trying to name a file
which contains both spaces and quote characters.
@ -934,6 +948,11 @@ This option changes the interpretations of options which follow this one.
After the \-\-use-backslash option, any backslash in an option string is
removed and the following character is taken literally.
This allows a dollar sign to be included in option strings.
.IP "\-\-rscroll"
This option changes the character used to mark truncated lines.
It may begin with a two-character attribute indicator like LESSBINFMT does.
If there is no attribute indicator, standout is used.
If set to "-", truncated lines are not marked.
.IP \-\-
A command line argument of "\-\-" marks the end of option arguments.
Any arguments following this are interpreted as filenames.
@ -941,7 +960,7 @@ This can be useful when viewing a file whose name begins with a "\-" or "+".
.IP +
If a command line option begins with \fB+\fP,
the remainder of that option is taken to be an initial command to
.I less.
.IR less .
For example, +G tells
.I less
to start at the end of the file rather than the beginning,
@ -1080,7 +1099,7 @@ On OS/2 systems, the system-wide lesskey file is c:\esysless.ini.
.SH "INPUT PREPROCESSOR"
You may define an "input preprocessor" for
.I less.
.IR less .
Before
.I less
opens a file, it first gives your input preprocessor a chance to modify the
@ -1165,7 +1184,7 @@ to accept other types of compressed files, and so on.
.PP
It is also possible to set up an input preprocessor to
pipe the file data directly to
.I less,
.IR less ,
rather than putting the data into a replacement file.
This avoids the need to decompress the entire file before
starting to view it.
@ -1210,11 +1229,11 @@ the original file is used.
To avoid this, if LESSOPEN starts with two vertical bars,
the exit status of the script becomes meaningful.
If the exit status is zero, the output is considered to be
replacement text, even if it empty.
replacement text, even if it is empty.
If the exit status is nonzero, any output is ignored and the
original file is used.
For compatibility with previous versions of
.I less,
.IR less ,
if LESSOPEN starts with only one vertical bar, the exit status
of the preprocessor is ignored.
.PP
@ -1225,7 +1244,7 @@ In this case, the replacement file name passed to the LESSCLOSE
postprocessor is "\-".
.PP
For compatibility with previous versions of
.I less,
.IR less ,
the input preprocessor or pipe is not used if
.I less
is viewing standard input.
@ -1685,7 +1704,7 @@ Normally should be set to "global" if your system has the
.IP LESSHISTFILE
Name of the history file used to remember search commands and
shell commands between invocations of
.I less.
.IR less .
If set to "\-" or "/dev/null", a history file is not used.
The default is "$HOME/.lesshst" on Unix systems, "$HOME/_lesshst" on
DOS and Windows systems, or "$HOME/lesshst.ini" or "$INIT/lesshst.ini"

2
lessecho.man
View File

@ -51,4 +51,4 @@ LESSECHO(1) General Commands Manual LESSECHO(1)
Version 491: 07 Apr 2017 LESSECHO(1)
Version 529: 13 Nov 2017 LESSECHO(1)

2
lessecho.nro
View File

@ -1,4 +1,4 @@
.TH LESSECHO 1 "Version 491: 07 Apr 2017"
.TH LESSECHO 1 "Version 529: 13 Nov 2017"
.SH NAME
lessecho \- expand metacharacters
.SH SYNOPSIS

2
lesskey.c
View File

@ -99,6 +99,7 @@ struct cmdname cmdnames[] =
{ "back-scroll", A_B_SCROLL },
{ "back-search", A_B_SEARCH },
{ "back-window", A_B_WINDOW },
{ "clear-mark", A_CLRMARK },
{ "debug", A_DEBUG },
{ "digit", A_DIGIT },
{ "display-flag", A_DISP_OPTION },
@ -146,6 +147,7 @@ struct cmdname cmdnames[] =
{ "reverse-search-all", A_T_REVERSE_SEARCH },
{ "right-scroll", A_RSHIFT },
{ "set-mark", A_SETMARK },
{ "set-mark-bottom", A_SETMARKBOT },
{ "shell", A_SHELL },
{ "status", A_STAT },
{ "toggle-flag", A_OPT_TOGGLE },

4
lesskey.man
View File

@ -191,6 +191,8 @@ LESSKEY(1) General Commands Manual LESSKEY(1)
\eN reverse-search-all
& filter
m set-mark
M set-mark-bottom
\em clear-mark
' goto-mark
^X^X goto-mark
E examine
@ -359,4 +361,4 @@ LESSKEY(1) General Commands Manual LESSKEY(1)
Version 491: 07 Apr 2017 LESSKEY(1)
Version 529: 13 Nov 2017 LESSKEY(1)

4
lesskey.nro
View File

@ -1,4 +1,4 @@
.TH LESSKEY 1 "Version 491: 07 Apr 2017"
.TH LESSKEY 1 "Version 529: 13 Nov 2017"
.SH NAME
lesskey \- specify key bindings for less
.SH SYNOPSIS
@ -208,6 +208,8 @@ default command keys used by less:
\eeN reverse-search-all
& filter
m set-mark
M set-mark-bottom
\eem clear-mark
' goto-mark
^X^X goto-mark
E examine

182
line.c
View File

@ -7,7 +7,6 @@
* For more information, see the README file.
*/
/*
* Routines to manipulate the "line buffer".
* The line buffer holds a line of output as it is being built
@ -18,6 +17,11 @@
#include "charset.h"
#include "position.h"
#if MSDOS_COMPILER==WIN32C
#define WIN32_LEAN_AND_MEAN
#include <windows.h>
#endif
static char *linebuf = NULL; /* Buffer which holds the current output line */
static char *attr = NULL; /* Extension of linebuf to hold attributes */
public int size_linebuf = 0; /* Size of line buffer (and attr buffer) */
@ -32,6 +36,8 @@ public POSITION highest_hilite; /* Pos of last hilite in file found so far */
static int curr; /* Index into linebuf */
static int column; /* Printable length, accounting for
backspaces, etc. */
static int right_curr;
static int right_column;
static int overstrike; /* Next char should overstrike previous char */
static int last_overstrike = AT_NORMAL;
static int is_null_line; /* There is no current line */
@ -41,9 +47,9 @@ static POSITION pendpos;
static char *end_ansi_chars;
static char *mid_ansi_chars;
static int attr_swidth();
static int attr_ewidth();
static int do_append();
static int attr_swidth LESSPARAMS ((int a));
static int attr_ewidth LESSPARAMS ((int a));
static int do_append LESSPARAMS ((LWCHAR ch, char *rep, POSITION pos));
extern int sigs;
extern int bs_mode;
@ -61,6 +67,8 @@ extern int sc_width, sc_height;
extern int utf_mode;
extern POSITION start_attnpos;
extern POSITION end_attnpos;
extern LWCHAR rscroll_char;
extern int rscroll_attr;
static char mbc_buf[MAX_UTF_CHAR_LEN];
static int mbc_buf_len = 0;
@ -152,6 +160,8 @@ prewind()
{
curr = 0;
column = 0;
right_curr = 0;
right_column = 0;
cshift = 0;
overstrike = 0;
last_overstrike = AT_NORMAL;
@ -160,7 +170,33 @@ prewind()
pendc = '\0';
lmargin = 0;
if (status_col)
lmargin += 1;
lmargin += 2;
}
/*
* Set a character in the line buffer.
*/
static void
set_linebuf(n, ch, a)
int n;
LWCHAR ch;
char a;
{
linebuf[n] = ch;
attr[n] = a;
}
/*
* Append a character to the line buffer.
*/
static void
add_linebuf(ch, a, w)
LWCHAR ch;
char a;
int w;
{
set_linebuf(curr++, ch, a);
column += w;
}
/*
@ -191,45 +227,48 @@ plinenum(pos)
*/
if (status_col)
{
linebuf[curr] = ' ';
if (start_attnpos != NULL_POSITION &&
pos >= start_attnpos && pos < end_attnpos)
attr[curr] = AT_NORMAL|AT_HILITE;
else
attr[curr] = AT_NORMAL;
curr++;
column++;
int a = AT_NORMAL;
char c = posmark(pos);
if (c != 0)
a |= AT_HILITE;
else
{
c = ' ';
if (start_attnpos != NULL_POSITION &&
pos >= start_attnpos && pos <= end_attnpos)
a |= AT_HILITE;
}
add_linebuf(c, a, 1); /* column 0: status */
add_linebuf(' ', AT_NORMAL, 1); /* column 1: empty */
}
/*
* Display the line number at the start of each line
* if the -N option is set.
*/
if (linenums == OPT_ONPLUS)
{
char buf[INT_STRLEN_BOUND(pos) + 2];
char buf[INT_STRLEN_BOUND(linenum) + 2];
int pad = 0;
int n;
linenumtoa(linenum, buf);
n = (int) strlen(buf);
if (n < MIN_LINENUM_WIDTH)
n = MIN_LINENUM_WIDTH;
sprintf(linebuf+curr, "%*s ", n, buf);
n++; /* One space after the line number. */
pad = MIN_LINENUM_WIDTH - n;
for (i = 0; i < pad; i++)
add_linebuf(' ', AT_NORMAL, 1);
for (i = 0; i < n; i++)
attr[curr+i] = AT_BOLD;
curr += n;
column += n;
lmargin += n;
add_linebuf(buf[i], AT_BOLD, 1);
add_linebuf(' ', AT_NORMAL, 1);
lmargin += n + pad + 1;
}
/*
* Append enough spaces to bring us to the lmargin.
*/
while (column < lmargin)
{
linebuf[curr] = ' ';
attr[curr++] = AT_NORMAL;
column++;
add_linebuf(' ', AT_NORMAL, 1);
}
}
@ -540,7 +579,7 @@ is_ansi_end(ch)
}
/*
*
* Can a char appear in an ANSI escape sequence, before the end char?
*/
public int
is_ansi_middle(ch)
@ -553,6 +592,23 @@ is_ansi_middle(ch)
return (strchr(mid_ansi_chars, (char) ch) != NULL);
}
/*
* Skip past an ANSI escape sequence.
* pp is initially positioned just after the CSI_START char.
*/
public void
skip_ansi(pp, limit)
char **pp;
constant char *limit;
{
LWCHAR c;
do {
c = step_char(pp, +1, limit);
} while (*pp < limit && is_ansi_middle(c));
/* Note that we discard final char, for which is_ansi_middle is false. */
}
/*
* Append a character and attribute to the line buffer.
*/
@ -648,11 +704,15 @@ store_char(ch, a, rep, pos)
return (1);
}
if (column > right_column && w > 0)
{
right_column = column;
right_curr = curr;
}
while (replen-- > 0)
{
linebuf[curr] = *rep++;
attr[curr] = a;
curr++;
add_linebuf(*rep++, a, 0);
}
column += w;
return (0);
@ -999,12 +1059,27 @@ pflushmbc()
return r;
}
/*
* Switch to normal attribute at end of line.
*/
static void
add_attr_normal()
{
char *p = "\033[m";
if (ctldisp != OPT_ONPLUS || !is_ansi_end('m'))
return;
for ( ; *p != '\0'; p++)
add_linebuf(*p, AT_ANSI, 0);
}
/*
* Terminate the line in the line buffer.
*/
public void
pdone(endline, forw)
pdone(endline, chopped, forw)
int endline;
int chopped;
int forw;
{
(void) pflushmbc();
@ -1023,15 +1098,34 @@ pdone(endline, forw)
if (cshift < hshift)
pshift(hshift - cshift);
if (ctldisp == OPT_ONPLUS && is_ansi_end('m'))
if (chopped && rscroll_char)
{
/* Switch to normal attribute at end of line. */
char *p = "\033[m";
for ( ; *p != '\0'; p++)
/*
* Display the right scrolling char.
* If we've already filled the rightmost screen char
* (in the buffer), overwrite it.
*/
if (column >= sc_width)
{
linebuf[curr] = *p;
attr[curr++] = AT_ANSI;
/* We've already written in the rightmost char. */
column = right_column;
curr = right_curr;
}
add_attr_normal();
while (column < sc_width-1)
{
/*
* Space to last (rightmost) char on screen.
* This may be necessary if the char we overwrote
* was double-width.
*/
add_linebuf(' ', AT_NORMAL, 1);
}
/* Print rscroll char. It must be single-width. */
add_linebuf(rscroll_char, rscroll_attr, 1);
} else
{
add_attr_normal();
}
/*
@ -1049,9 +1143,7 @@ pdone(endline, forw)
*/
if (column < sc_width || !auto_wrap || (endline && ignaw) || ctldisp == OPT_ON)
{
linebuf[curr] = '\n';
attr[curr] = AT_NORMAL;
curr++;
add_linebuf('\n', AT_NORMAL, 0);
}
else if (ignaw && column >= sc_width && forw)
{
@ -1069,13 +1161,10 @@ pdone(endline, forw)
* char on the next line. We don't need to do this "nudge"
* at the top of the screen anyway.
*/
linebuf[curr] = ' ';
attr[curr++] = AT_NORMAL;
linebuf[curr] = '\b';
attr[curr++] = AT_NORMAL;
add_linebuf(' ', AT_NORMAL, 1);
add_linebuf('\b', AT_NORMAL, -1);
}
linebuf[curr] = '\0';
attr[curr] = AT_NORMAL;
set_linebuf(curr, '\0', AT_NORMAL);
}
/*
@ -1085,8 +1174,7 @@ pdone(endline, forw)
set_status_col(c)
char c;
{
linebuf[0] = c;
attr[0] = AT_NORMAL|AT_HILITE;
set_linebuf(0, c, AT_NORMAL|AT_HILITE);
}
/*

25
main.c
View File

@ -112,8 +112,9 @@ main(argc, argv)
* Command line arguments override environment arguments.
*/
is_tty = isatty(1);
get_term();
init_cmds();
get_term();
expand_cmd_tables();
init_charset();
init_line();
init_cmdhist();
@ -181,7 +182,6 @@ main(argc, argv)
ifile = get_ifile(FAKE_HELPFILE, ifile);
while (argc-- > 0)
{
char *filename;
#if (MSDOS_COMPILER && MSDOS_COMPILER != DJGPPC)
/*
* Because the "shell" doesn't expand filename patterns,
@ -190,25 +190,24 @@ main(argc, argv)
* Expand the pattern and iterate over the expanded list.
*/
struct textlist tlist;
char *filename;
char *gfilename;
char *qfilename;
gfilename = lglob(*argv++);
init_textlist(&tlist, gfilename);
filename = NULL;
while ((filename = forw_textlist(&tlist, filename)) != NULL)
{
(void) get_ifile(filename, ifile);
qfilename = shell_unquote(filename);
(void) get_ifile(qfilename, ifile);
free(qfilename);
ifile = prev_ifile(NULL_IFILE);
}
free(gfilename);
#else
filename = shell_quote(*argv);
if (filename == NULL)
filename = *argv;
argv++;
(void) get_ifile(filename, ifile);
(void) get_ifile(*argv++, ifile);
ifile = prev_ifile(NULL_IFILE);
free(filename);
#endif
}
/*
@ -281,17 +280,11 @@ main(argc, argv)
{
if (edit_first()) /* Edit first valid file in cmd line */
quit(QUIT_ERROR);
/*
* In case that we have only one file and -F, have to get a line
* count fot init(). If the line count is less then a height of a term,
* the content of the file is printed out and then less quits. Otherwise
* -F can not be used
*/
if (quit_if_one_screen)
{
if (nifile() == 1)
line_count = get_line_count();
else /* In case more than one file, -F can not be used */
else /* If more than one file, -F can not be used */
quit_if_one_screen = FALSE;
}
}

48
mark.c
View File

@ -9,6 +9,7 @@
#include "less.h"
#include "position.h"
extern IFILE curr_ifile;
extern int sc_height;
@ -86,7 +87,7 @@ getmark(c)
}
m = &sm;
m->m_scrpos.pos = ch_tell();
m->m_scrpos.ln = sc_height-1;
m->m_scrpos.ln = sc_height;
m->m_ifile = curr_ifile;
break;
case '.':
@ -94,7 +95,7 @@ getmark(c)
* Current position in the current file.
*/
m = &sm;
get_scrpos(&m->m_scrpos);
get_scrpos(&m->m_scrpos, TOP);
m->m_ifile = curr_ifile;
break;
case '\'':
@ -134,8 +135,9 @@ badmark(c)
* Set a user-defined mark.
*/
public void
setmark(c)
setmark(c, where)
int c;
int where;
{
struct mark *m;
struct scrpos scrpos;
@ -143,11 +145,26 @@ setmark(c)
m = getumark(c);
if (m == NULL)
return;
get_scrpos(&scrpos);
get_scrpos(&scrpos, where);
m->m_scrpos = scrpos;
m->m_ifile = curr_ifile;
}
/*
* Clear a user-defined mark.
*/
public void
clrmark(c)
int c;
{
struct mark *m;
m = getumark(c);
if (m == NULL)
return;
m->m_scrpos.pos = NULL_POSITION;
}
/*
* Set lmark (the mark named by the apostrophe).
*/
@ -158,7 +175,7 @@ lastmark()
if (ch_getflags() & CH_HELPFILE)
return;
get_scrpos(&scrpos);
get_scrpos(&scrpos, TOP);
if (scrpos.pos == NULL_POSITION)
return;
marks[LASTMARK].m_scrpos = scrpos;
@ -234,6 +251,27 @@ markpos(c)
return (m->m_scrpos.pos);
}
/*
* Return the mark associated with a given position, if any.
*/
public char
posmark(pos)
POSITION pos;
{
int i;
/* Only lower case and upper case letters */
for (i = 0; i < 26*2; i++)
{
if (marks[i].m_ifile == curr_ifile && marks[i].m_scrpos.pos == pos)
{
if (i < 26) return 'a' + i;
return 'A' + i - 26;
}
}
return 0;
}
/*
* Clear the marks associated with a specified ifile.
*/

2
mkfuncs.pl
View File

@ -11,7 +11,7 @@ while (<>) {
$state = 1;
$params = 0;
} elsif ($state == 1 and /(\w+)\s*\(/) {
$def .= " $1 LESSPARAMS((";
$def .= " $1 LESSPARAMS ((";
$state = 2;
} elsif ($state == 2) {
if (/^{/) {

68
mkhelp.c
View File

@ -1,68 +0,0 @@
/*
* Copyright (C) 1984-2017 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.
*
* For more information, see the README file.
*/
/*
* Silly little program to generate the help.c source file
* from the less.hlp text file.
* help.c just contains a char array whose contents are
* the contents of less.hlp.
*/
#include <stdio.h>
int
main(argc, argv)
int argc;
char *argv[];
{
int ch;
int prevch;
printf("/* This file was generated by mkhelp from less.hlp */\n");
printf("#include \"less.h\"\n");
printf("constant char helpdata[] = {\n");
ch = 0;
while (prevch = ch, (ch = getchar()) != EOF)
{
switch (ch)
{
case '\'':
printf("'\\'',");
break;
case '\\':
printf("'\\\\',");
break;
case '\b':
printf("'\\b',");
break;
case '\t':
printf("'\\t',");
break;
case '\n':
if (prevch != '\r')
printf("'\\n',\n");
break;
case '\r':
if (prevch != '\n')
printf("'\\n',\n");
break;
default:
if (ch >= ' ' && ch < 0x7f)
printf("'%c',", ch);
else
printf("0x%02x,", ch);
break;
}
}
/* Add an extra null char to avoid having a trailing comma. */
printf(" 0 };\n");
printf("constant int size_helpdata = sizeof(helpdata) - 1;\n");
return (0);
}

44
mkhelp.pl Executable file
View File

@ -0,0 +1,44 @@
#! /usr/bin/perl
use strict;
# Silly little program to generate the help.c source file
# from the less.hlp text file.
# The output of this script is a C program defining a char array
# whose content is the input to this script.
{
my ($sec,$min,$hour,$mday,$mon,$year) = gmtime();
printf "/* This file was generated by mkhelp.pl from less.hlp at %d:%02d on %d/%d/%d */\n",
$hour, $min, $year+1900, $mon+1, $mday;
print "#include \"less.h\"\n";
print "constant char helpdata[] = {\n";
my $ch = 0;
my $prevch;
for (;;) {
$prevch = $ch;
$ch = getc();
last if not defined $ch;
if ($ch eq "'") {
print "'\\'',";
} elsif ($ch eq "\\") {
print "'\\\\',";
} elsif ($ch eq "\b") {
print "'\\b',";
} elsif ($ch eq "\t") {
print "'\\t',";
} elsif ($ch eq "\n") {
print "'\\n',\n" if $prevch ne "\r";
} elsif ($ch eq "\r") {
print "'\\n',\n" if $prevch ne "\n";
} else {
if (ord($ch) >= ord(' ') && ord($ch) < 0x7f) {
print "'$ch',";
} else {
printf "0x%02x,", ord($ch);
}
}
}
# Add an extra null char to avoid having a trailing comma.
print " 0 };\n";
print "constant int size_helpdata = sizeof(helpdata) - 1;\n";
}

11
mkutable
View File

@ -11,6 +11,16 @@ use vars qw( $opt_f $opt_n );
use Getopt::Std;
my $type_field = 2;
# Override Unicode tables for certain control chars
# that are expected to be found in normal text files.
my %force_space = (
0x08 => 1, # backspace
0x09 => 1, # tab
0x0a => 1, # newline
0x0c => 1, # form feed
0x0d => 1, # carriage return
);
exit (main() ? 0 : 1);
sub main {
@ -47,6 +57,7 @@ sub main {
my $type = $fields[$type_field];
$type =~ s/\s//g;
for ($last_code = $lo_code; $last_code <= $hi_code; ++$last_code) {
$type = 'Zs' if $force_space{$last_code};
output(\%out, $last_code, $type);
}
}

80
optfunc.c
View File

@ -50,6 +50,8 @@ extern int jump_sline;
extern long jump_sline_fraction;
extern int shift_count;
extern long shift_count_fraction;
extern LWCHAR rscroll_char;
extern int rscroll_attr;
extern int less_is_more;
#if LOGFILE
extern char *namelogfile;
@ -68,6 +70,11 @@ extern int ul_fg_color, ul_bg_color;
extern int so_fg_color, so_bg_color;
extern int bl_fg_color, bl_bg_color;
extern int sgr_mode;
#if MSDOS_COMPILER==WIN32C
#ifndef COMMON_LVB_UNDERSCORE
#define COMMON_LVB_UNDERSCORE 0x8000
#endif
#endif
#endif
@ -81,6 +88,7 @@ opt_o(type, s)
char *s;
{
PARG parg;
char *filename;
if (secure)
{
@ -106,7 +114,9 @@ opt_o(type, s)
s = skipsp(s);
if (namelogfile != NULL)
free(namelogfile);
namelogfile = lglob(s);
filename = lglob(s);
namelogfile = shell_unquote(filename);
free(filename);
use_logfile(namelogfile);
sync_logfile();
break;
@ -336,6 +346,7 @@ opt__T(type, s)
char *s;
{
PARG parg;
char *filename;
switch (type)
{
@ -346,7 +357,9 @@ opt__T(type, s)
s = skipsp(s);
if (tags != NULL && tags != ztags)
free(tags);
tags = lglob(s);
filename = lglob(s);
tags = shell_unquote(filename);
free(filename);
break;
case QUERY:
parg.p_string = tags;
@ -540,12 +553,27 @@ colordesc(s, fg_color, bg_color)
{
int fg, bg;
int err;
#if MSDOS_COMPILER==WIN32C
int ul = 0;
if (*s == 'u')
{
ul = COMMON_LVB_UNDERSCORE;
++s;
}
#endif
fg = getnum(&s, "D", &err);
if (err)
{
error("Missing fg color in -D", NULL_PARG);
return;
#if MSDOS_COMPILER==WIN32C
if (ul)
fg = nm_fg_color;
else
#endif
{
error("Missing fg color in -D", NULL_PARG);
return;
}
}
if (*s != '.')
bg = nm_bg_color;
@ -559,6 +587,14 @@ colordesc(s, fg_color, bg_color)
return;
}
}
#if MSDOS_COMPILER==WIN32C
if (*s == 'u')
{
ul = COMMON_LVB_UNDERSCORE;
++s;
}
fg |= ul;
#endif
if (*s != '\0')
error("Extra characters at end of -D option", NULL_PARG);
*fg_color = fg;
@ -717,6 +753,40 @@ opt_quote(type, s)
}
}
/*
* Handler for the --rscroll option.
*/
/*ARGSUSED*/
public void
opt_rscroll(type, s)
int type;
char *s;
{
PARG p;
switch (type)
{
case INIT:
case TOGGLE: {
char *fmt;
int attr = AT_STANDOUT;
setfmt(s, &fmt, &attr, "*s>");
if (strcmp(fmt, "-") == 0)
{
rscroll_char = 0;
} else
{
rscroll_char = *fmt ? *fmt : '>';
rscroll_attr = attr;
}
break; }
case QUERY: {
p.p_string = rscroll_char ? prchar(rscroll_char) : "-";
error("rscroll char is %s", &p);
break; }
}
}
/*
* "-?" means display a help message.
* If from the command line, exit immediately.

2
option.h
View File

@ -60,7 +60,7 @@ struct loption
int otype; /* Type of the option */
int odefault; /* Default value */
int *ovar; /* Pointer to the associated variable */
void (*ofunc) LESSPARAMS((int, char*)); /* Pointer to special handling function */
void (*ofunc) LESSPARAMS ((int, char*)); /* Pointer to special handling function */
char *odesc[3]; /* Description of each value */
};

7
opttbl.c
View File

@ -53,6 +53,8 @@ public int quit_on_intr; /* Quit on interrupt */
public int follow_mode; /* F cmd Follows file desc or file name? */
public int oldbot; /* Old bottom of screen behavior {{REMOVE}} */
public int opt_use_backslash; /* Use backslash escaping in option parsing */
public LWCHAR rscroll_char; /* Char which marks chopped lines with -S */
public int rscroll_attr; /* Attribute of rscroll_char */
#if HILITE_SEARCH
public int hilite_search; /* Highlight matched search patterns? */
#endif
@ -117,6 +119,7 @@ static struct optname keypad_optname = { "no-keypad", NULL };
static struct optname oldbot_optname = { "old-bot", NULL };
static struct optname follow_optname = { "follow-name", NULL };
static struct optname use_backslash_optname = { "use-backslash", NULL };
static struct optname rscroll_optname = { "rscroll", NULL };
/*
@ -456,6 +459,10 @@ static struct loption option[] =
NULL
}
},
{ OLETTER_NONE, &rscroll_optname,
STRING|REPAINT|INIT_HANDLER, 0, NULL, opt_rscroll,
{ "right scroll character: ", NULL, NULL }
},
{ '\0', NULL, NOVAR, 0, NULL, NULL, { NULL, NULL, NULL } }
};

32
output.c
View File

@ -15,6 +15,9 @@
#include "less.h"
#if MSDOS_COMPILER==WIN32C
#include "windows.h"
#ifndef COMMON_LVB_UNDERSCORE
#define COMMON_LVB_UNDERSCORE 0x8000
#endif
#endif
public int errmsgs; /* Count of messages displayed by error() */
@ -38,6 +41,9 @@ extern int ul_fg_color, ul_bg_color;
extern int so_fg_color, so_bg_color;
extern int bl_fg_color, bl_bg_color;
extern int sgr_mode;
#if MSDOS_COMPILER==WIN32C
extern int have_ul;
#endif
#endif
/*
@ -127,9 +133,9 @@ flush()
* the -D command-line option.
*/
char *anchor, *p, *p_next;
static unsigned char fg, fgi, bg, bgi;
static unsigned char at;
unsigned char f, b;
static int fg, fgi, bg, bgi;
static int at;
int f, b;
#if MSDOS_COMPILER==WIN32C
/* Screen colors used by 3x and 4x SGR commands. */
static unsigned char screen_color[] = {
@ -259,8 +265,13 @@ flush()
case 7: /* inverse on */
at |= 2;
break;
case 4: /* underline on */
bgi = 8;
case 4: /* underline on */
#if MSDOS_COMPILER==WIN32C
if (have_ul)
bgi = COMMON_LVB_UNDERSCORE >> 4;
else
#endif
bgi = 8;
at |= 4;
break;
case 5: /* slow blink on */
@ -356,7 +367,11 @@ flush()
if (at & 16)
f = b ^ 8;
f &= 0xf;
b &= 0xf;
#if MSDOS_COMPILER==WIN32C
b &= 0xf | (COMMON_LVB_UNDERSCORE >> 4);
#else
b &= 0xf;
#endif
WIN32setcolors(f, b);
p_next = anchor = p + 1;
} else
@ -536,6 +551,9 @@ less_printf(fmt, parg)
col += iprint_linenum(parg->p_linenum);
parg++;
break;
case '%':
putchr('%');
break;
}
}
}
@ -600,7 +618,7 @@ error(fmt, parg)
get_return();
lower_left();
clear_eol();
clear_eol();
if (col >= sc_width)
/*

8
pattern.h
View File

@ -32,15 +32,15 @@
#endif
#if HAVE_RE_COMP
char *re_comp();
int re_exec();
char *re_comp LESSPARAMS ((char*));
int re_exec LESSPARAMS ((char*));
#define PATTERN_TYPE int
#define CLEAR_PATTERN(name) name = 0
#endif
#if HAVE_REGCMP
char *regcmp();
char *regex();
char *regcmp LESSPARAMS ((char*));
char *regex LESSPARAMS ((char**, char*));
extern char *__loc1;
#define PATTERN_TYPE char **
#define CLEAR_PATTERN(name) name = NULL

41
position.c
View File

@ -36,21 +36,22 @@ extern int sc_width, sc_height;
* the line after the bottom line on the screen
*/
public POSITION
position(where)
int where;
position(sindex)
int sindex;
{
switch (where)
switch (sindex)
{
case BOTTOM:
where = sc_height - 2;
sindex = sc_height - 2;
break;
case BOTTOM_PLUS_ONE:
where = sc_height - 1;
sindex = sc_height - 1;
break;
case MIDDLE:
where = (sc_height - 1) / 2;
sindex = (sc_height - 1) / 2;
break;
}
return (table[where]);
return (table[sindex]);
}
/*
@ -115,7 +116,7 @@ pos_init()
*/
if (table != NULL)
{
get_scrpos(&scrpos);
get_scrpos(&scrpos, TOP);
free((char*)table);
} else
scrpos.pos = NULL_POSITION;
@ -176,22 +177,34 @@ empty_lines(s, e)
* the screen line to a number > 0.
*/
public void
get_scrpos(scrpos)
get_scrpos(scrpos, where)
struct scrpos *scrpos;
int where;
{
int i;
int dir;
int last;
switch (where)
{
case TOP: i = 0; dir = +1; last = sc_height-2; break;
default: i = sc_height-2; dir = -1; last = 0; break;
}
/*
* Find the first line on the screen which has something on it,
* and return the screen line number and the file position.
*/
for (i = 0; i < sc_height; i++)
for (;; i += dir)
{
if (table[i] != NULL_POSITION)
{
scrpos->ln = i+1;
scrpos->pos = table[i];
return;
}
if (i == last) break;
}
/*
* The screen is empty.
*/
@ -208,7 +221,7 @@ get_scrpos(scrpos)
* relative to the bottom of the screen.
*/
public int
adjsline(sline)
sindex_from_sline(sline)
int sline;
{
/*
@ -218,12 +231,12 @@ adjsline(sline)
if (sline < 0)
sline += sc_height;
/*
* Can't be less than 1 or greater than sc_height-1.
* Can't be less than 1 or greater than sc_height.
*/
if (sline <= 0)
sline = 1;
if (sline >= sc_height)
sline = sc_height - 1;
if (sline > sc_height)
sline = sc_height;
/*
* Return zero-based line number, not one-based.
*/

2
prompt.c
View File

@ -464,7 +464,7 @@ wherechar(p, wp)
case 'm': *wp = MIDDLE; break;
case 'b': *wp = BOTTOM; break;
case 'B': *wp = BOTTOM_PLUS_ONE; break;
case 'j': *wp = adjsline(jump_sline); break;
case 'j': *wp = sindex_from_sline(jump_sline); break;
default: *wp = TOP; p--; break;
}
}

46
screen.c
View File

@ -126,16 +126,21 @@ static HANDLE con_out_save = INVALID_HANDLE_VALUE; /* previous console */
static HANDLE con_out_ours = INVALID_HANDLE_VALUE; /* our own */
HANDLE con_out = INVALID_HANDLE_VALUE; /* current console */
extern int utf_mode;
extern int quitting;
static void win32_init_term();
static void win32_deinit_term();
#ifndef ENABLE_VIRTUAL_TERMINAL_PROCESSING
#define ENABLE_VIRTUAL_TERMINAL_PROCESSING 4
#endif
#define FG_COLORS (FOREGROUND_RED | FOREGROUND_GREEN | FOREGROUND_BLUE | FOREGROUND_INTENSITY)
#define BG_COLORS (BACKGROUND_RED | BACKGROUND_GREEN | BACKGROUND_BLUE | BACKGROUND_INTENSITY)
#define MAKEATTR(fg,bg) ((WORD)((fg)|((bg)<<4)))
#define SETCOLORS(fg,bg) { curr_attr = MAKEATTR(fg,bg); \
if (SetConsoleTextAttribute(con_out, curr_attr) == 0) \
error("SETCOLORS failed"); }
error("SETCOLORS failed", NULL_PARG); }
#endif
#if MSDOS_COMPILER
@ -152,7 +157,9 @@ public int bl_bg_color;
static int sy_fg_color; /* Color of system text (before less) */
static int sy_bg_color;
public int sgr_mode; /* Honor ANSI sequences rather than using above */
#if MSDOS_COMPILER==WIN32C
public int have_ul; /* Is underline available? */
#endif
#else
/*
@ -201,6 +208,7 @@ public int above_mem, below_mem; /* Memory retained above/below screen */
public int can_goto_line; /* Can move cursor to any line */
public int clear_bg; /* Clear fills with background color */
public int missing_cap = 0; /* Some capability is missing */
public char *kent = NULL; /* Keypad ENTER sequence */
static int attrmode = AT_NORMAL;
extern int binattr;
@ -1210,7 +1218,8 @@ get_term()
sc_e_keypad = ltgetstr("ke", &sp);
if (sc_e_keypad == NULL)
sc_e_keypad = "";
kent = ltgetstr("@8", &sp);
sc_init = ltgetstr("ti", &sp);
if (sc_init == NULL)
sc_init = "";
@ -1498,6 +1507,8 @@ win32_init_term()
if (con_out_ours == INVALID_HANDLE_VALUE)
{
DWORD output_mode;
/*
* Create our own screen buffer, so that we
* may restore the original when done.
@ -1508,6 +1519,12 @@ win32_init_term()
(LPSECURITY_ATTRIBUTES) NULL,
CONSOLE_TEXTMODE_BUFFER,
(LPVOID) NULL);
/*
* Enable underline, if available.
*/
GetConsoleMode(con_out_ours, &output_mode);
have_ul = SetConsoleMode(con_out_ours,
output_mode | ENABLE_VIRTUAL_TERMINAL_PROCESSING);
}
size.X = scr.srWindow.Right - scr.srWindow.Left + 1;
@ -1828,6 +1845,8 @@ win32_scroll_up(n)
public void
lower_left()
{
if (!init_done)
return;
#if !MSDOS_COMPILER
tputs(sc_lower_left, 1, putchr);
#else
@ -1902,14 +1921,14 @@ check_winch()
* Goto a specific line on the screen.
*/
public void
goto_line(slinenum)
int slinenum;
goto_line(sindex)
int sindex;
{
#if !MSDOS_COMPILER
tputs(tgoto(sc_move, 0, slinenum), 1, putchr);
tputs(tgoto(sc_move, 0, sindex), 1, putchr);
#else
flush();
_settextposition(slinenum+1, 1);
_settextposition(sindex+1, 1);
#endif
}
@ -2508,7 +2527,18 @@ WIN32textout(text, len)
{
#if MSDOS_COMPILER==WIN32C
DWORD written;
WriteConsole(con_out, text, len, &written, NULL);
if (utf_mode == 2)
{
/*
* We've got UTF-8 text in a non-UTF-8 console. Convert it to
* wide and use WriteConsoleW.
*/
WCHAR wtext[1024];
len = MultiByteToWideChar(CP_UTF8, 0, text, len, wtext,
sizeof(wtext)/sizeof(*wtext));
WriteConsoleW(con_out, wtext, len, &written, NULL);
} else
WriteConsole(con_out, text, len, &written, NULL);
#else
char c = text[len];
text[len] = '\0';

81
search.c
View File

@ -258,7 +258,7 @@ prev_pattern(info)
repaint_hilite(on)
int on;
{
int slinenum;
int sindex;
POSITION pos;
int save_hide_hilite;
@ -280,13 +280,13 @@ repaint_hilite(on)
return;
}
for (slinenum = TOP; slinenum < TOP + sc_height-1; slinenum++)
for (sindex = TOP; sindex < TOP + sc_height-1; sindex++)
{
pos = position(slinenum);
pos = position(sindex);
if (pos == NULL_POSITION)
continue;
(void) forw_line(pos);
goto_line(slinenum);
goto_line(sindex);
put_line();
}
lower_left();
@ -299,7 +299,7 @@ repaint_hilite(on)
public void
clear_attn()
{
int slinenum;
int sindex;
POSITION old_start_attnpos;
POSITION old_end_attnpos;
POSITION pos;
@ -320,17 +320,17 @@ clear_attn()
if (squished)
repaint();
for (slinenum = TOP; slinenum < TOP + sc_height-1; slinenum++)
for (sindex = TOP; sindex < TOP + sc_height-1; sindex++)
{
pos = position(slinenum);
pos = position(sindex);
if (pos == NULL_POSITION)
continue;
epos = position(slinenum+1);
if (pos < old_end_attnpos &&
epos = position(sindex+1);
if (pos <= old_end_attnpos &&
(epos == NULL_POSITION || epos > old_start_attnpos))
{
(void) forw_line(pos);
goto_line(slinenum);
goto_line(sindex);
put_line();
moved = 1;
}
@ -348,9 +348,14 @@ undo_search()
{
if (!prev_pattern(&search_info))
{
error("No previous regular expression", NULL_PARG);
return;
if (hilite_anchor.first == NULL)
{
error("No previous regular expression", NULL_PARG);
return;
}
clr_hilite(); /* Next time, hilite_anchor.first will be NULL. */
}
clear_pattern(&search_info);
#if HILITE_SEARCH
hide_hilite = !hide_hilite;
repaint_hilite(1);
@ -620,11 +625,18 @@ is_hilited(pos, epos, nohide, p_matches)
if (!match)
return (0);
if (p_matches != NULL)
if (p_matches == NULL)
/*
* Report matches, even if we're hiding highlights.
* Kinda kludgy way to recognize that caller is checking for
* hilite in status column. In this case we want to return
* hilite status even if hiliting is disabled or hidden.
*/
*p_matches = 1;
return (1);
/*
* Report matches, even if we're hiding highlights.
*/
*p_matches = 1;
if (hilite_search == 0)
/*
@ -1023,7 +1035,7 @@ hilite_screen()
{
struct scrpos scrpos;
get_scrpos(&scrpos);
get_scrpos(&scrpos, TOP);
if (scrpos.pos == NULL_POSITION)
return;
prep_hilite(scrpos.pos, position(BOTTOM_PLUS_ONE), -1);
@ -1058,7 +1070,7 @@ search_pos(search_type)
int search_type;
{
POSITION pos;
int linenum;
int sindex;
if (empty_screen())
{
@ -1081,7 +1093,7 @@ search_pos(search_type)
pos = ch_length();
}
}
linenum = 0;
sindex = 0;
} else
{
int add_one = 0;
@ -1092,18 +1104,18 @@ search_pos(search_type)
* Search does not include current screen.
*/
if (search_type & SRCH_FORW)
linenum = sc_height-1; /* BOTTOM_PLUS_ONE */
sindex = sc_height-1; /* BOTTOM_PLUS_ONE */
else
linenum = 0; /* TOP */
sindex = 0; /* TOP */
} else if (how_search == OPT_ONPLUS && !(search_type & SRCH_AFTER_TARGET))
{
/*
* Search includes all of displayed screen.
*/
if (search_type & SRCH_FORW)
linenum = 0; /* TOP */
sindex = 0; /* TOP */
else
linenum = sc_height-1; /* BOTTOM_PLUS_ONE */
sindex = sc_height-1; /* BOTTOM_PLUS_ONE */
} else
{
/*
@ -1111,11 +1123,11 @@ search_pos(search_type)
* It starts at the jump target (if searching backwards),
* or at the jump target plus one (if forwards).
*/
linenum = adjsline(jump_sline);
sindex = sindex_from_sline(jump_sline);
if (search_type & SRCH_FORW)
add_one = 1;
}
pos = position(linenum);
pos = position(sindex);
if (add_one)
pos = forw_raw_line(pos, (char **)NULL, (int *)NULL);
}
@ -1127,17 +1139,17 @@ search_pos(search_type)
{
while (pos == NULL_POSITION)
{
if (++linenum >= sc_height)
if (++sindex >= sc_height)
break;
pos = position(linenum);
pos = position(sindex);
}
} else
{
while (pos == NULL_POSITION)
{
if (--linenum < 0)
if (--sindex < 0)
break;
pos = position(linenum);
pos = position(sindex);
}
}
return (pos);
@ -1419,7 +1431,7 @@ search(search_type, pattern, n)
return -1;
}
#if HILITE_SEARCH
if (hilite_search == OPT_ON)
if (hilite_search == OPT_ON || status_col)
{
/*
* Erase the highlights currently on screen.
@ -1446,7 +1458,7 @@ search(search_type, pattern, n)
if (set_pattern(&search_info, pattern, search_type) < 0)
return (-1);
#if HILITE_SEARCH
if (hilite_search)
if (hilite_search || status_col)
{
/*
* Erase the highlights currently on screen.
@ -1456,7 +1468,7 @@ search(search_type, pattern, n)
hide_hilite = 0;
clr_hilite();
}
if (hilite_search == OPT_ONPLUS)
if (hilite_search == OPT_ONPLUS || status_col)
{
/*
* Highlight any matches currently on screen,
@ -1478,7 +1490,8 @@ search(search_type, pattern, n)
*/
if (search_type & SRCH_PAST_EOF)
return (n);
/* repaint(); -- why was this here? */
if (hilite_search == OPT_ON || status_col)
repaint_hilite(1);
error("Nothing to search", NULL_PARG);
return (-1);
}
@ -1491,7 +1504,7 @@ search(search_type, pattern, n)
* Search was unsuccessful.
*/
#if HILITE_SEARCH
if (hilite_search == OPT_ON && n > 0)
if ((hilite_search == OPT_ON || status_col) && n > 0)
/*
* Redisplay old hilites.
*/
@ -1509,7 +1522,7 @@ search(search_type, pattern, n)
}
#if HILITE_SEARCH
if (hilite_search == OPT_ON)
if (hilite_search == OPT_ON || status_col)
/*
* Display new hilites in the matching line.
*/

36
signal.c
View File

@ -78,22 +78,16 @@ stop(type)
}
#endif
#undef SIG_LESSWINDOW
#ifdef SIGWINCH
/*
* "Window" change handler
*/
/* ARGSUSED*/
public RETSIGTYPE
winch(type)
int type;
{
LSIGNAL(SIGWINCH, winch);
sigs |= S_WINCH;
if (reading)
intread();
}
#define SIG_LESSWINDOW SIGWINCH
#else
#ifdef SIGWIND
#define SIG_LESSWINDOW SIGWIND
#endif
#endif
#ifdef SIG_LESSWINDOW
/*
* "Window" change handler
*/
@ -102,13 +96,12 @@ winch(type)
winch(type)
int type;
{
LSIGNAL(SIGWIND, winch);
LSIGNAL(SIG_LESSWINDOW, winch);
sigs |= S_WINCH;
if (reading)
intread();
}
#endif
#endif
#if MSDOS_COMPILER==WIN32C
/*
@ -133,6 +126,13 @@ wbreak_handler(dwCtrlType)
}
#endif
static RETSIGTYPE
terminate(type)
int type;
{
quit(15);
}
/*
* Set up the signal handlers.
*/
@ -160,6 +160,9 @@ init_signals(on)
#endif
#ifdef SIGQUIT
(void) LSIGNAL(SIGQUIT, SIG_IGN);
#endif
#ifdef SIGTERM
(void) LSIGNAL(SIGTERM, terminate);
#endif
} else
{
@ -181,6 +184,9 @@ init_signals(on)
#endif
#ifdef SIGQUIT
(void) LSIGNAL(SIGQUIT, SIG_DFL);
#endif
#ifdef SIGTERM
(void) LSIGNAL(SIGTERM, SIG_DFL);
#endif
}
}

56
tags.c
View File

@ -22,6 +22,7 @@ static int curseq;
extern int linenums;
extern int sigs;
extern int ctldisp;
enum tag_result {
TAG_FOUND,
@ -100,6 +101,8 @@ cleantags()
while ((tp = taglist.tl_first) != TAG_END)
{
TAG_RM(tp);
free(tp->tag_file);
free(tp->tag_pattern);
free(tp);
}
curtag = NULL;
@ -384,6 +387,26 @@ edit_tagfile()
return (edit(curtag->tag_file));
}
static int
curtag_match(char const *line, POSITION linepos)
{
/*
* Test the line to see if we have a match.
* Use strncmp because the pattern may be
* truncated (in the tags file) if it is too long.
* If tagendline is set, make sure we match all
* the way to end of line (no extra chars after the match).
*/
int len = (int) strlen(curtag->tag_pattern);
if (strncmp(curtag->tag_pattern, line, len) == 0 &&
(!curtag->tag_endline || line[len] == '\0' || line[len] == '\r'))
{
curtag->tag_linenum = find_linenum(linepos);
return 1;
}
return 0;
}
/*
* Search for a tag.
* This is a stripped-down version of search().
@ -398,13 +421,14 @@ ctagsearch()
{
POSITION pos, linepos;
LINENUM linenum;
int len;
int line_len;
char *line;
int found;
pos = ch_zero();
linenum = find_linenum(pos);
for (;;)
for (found = 0; !found;)
{
/*
* Get lines until we find a matching one or
@ -418,7 +442,7 @@ ctagsearch()
* starting position of that line in linepos.
*/
linepos = pos;
pos = forw_raw_line(pos, &line, (int *)NULL);
pos = forw_raw_line(pos, &line, &line_len);
if (linenum != 0)
linenum++;
@ -439,19 +463,21 @@ ctagsearch()
if (linenums)
add_lnum(linenum, pos);
/*
* Test the line to see if we have a match.
* Use strncmp because the pattern may be
* truncated (in the tags file) if it is too long.
* If tagendline is set, make sure we match all
* the way to end of line (no extra chars after the match).
*/
len = (int) strlen(curtag->tag_pattern);
if (strncmp(curtag->tag_pattern, line, len) == 0 &&
(!curtag->tag_endline || line[len] == '\0' || line[len] == '\r'))
if (ctldisp != OPT_ONPLUS)
{
curtag->tag_linenum = find_linenum(linepos);
break;
if (curtag_match(line, linepos))
found = 1;
} else
{
int cvt_ops = CVT_ANSI;
int cvt_len = cvt_length(line_len, cvt_ops);
int *chpos = cvt_alloc_chpos(cvt_len);
char *cline = (char *) ecalloc(1, cvt_len);
cvt_text(cline, line, chpos, &line_len, cvt_ops);
if (curtag_match(cline, linepos))
found = 1;
free(chpos);
free(cline);
}
}

24
ubin.uni
View File

@ -1,32 +1,16 @@
/* Generated by "./mkutable -f2 Cc Cf Cs Co Zl Zp -- unicode/UnicodeData.txt" on Tue Sep 20 10:51:43 PDT 2016 */
{ 0x0000, 0x001f }, /* Cc */
/* Generated by "./mkutable -f2 Cc Cs Co Zl Zp -- unicode/UnicodeData.txt" on Tue Jul 25 09:04:35 PDT 2017 */
{ 0x0000, 0x0007 }, /* Cc */
{ 0x000b, 0x000b }, /* Cc */
{ 0x000e, 0x001f }, /* Cc */
{ 0x007f, 0x009f }, /* Cc */
{ 0x00ad, 0x00ad }, /* Cf */
{ 0x0600, 0x0605 }, /* Cf */
{ 0x061c, 0x061c }, /* Cf */
{ 0x06dd, 0x06dd }, /* Cf */
{ 0x070f, 0x070f }, /* Cf */
{ 0x08e2, 0x08e2 }, /* Cf */
{ 0x180e, 0x180e }, /* Cf */
{ 0x200b, 0x200f }, /* Cf */
{ 0x2028, 0x2028 }, /* Zl */
{ 0x2029, 0x2029 }, /* Zp */
{ 0x202a, 0x202e }, /* Cf */
{ 0x2060, 0x2064 }, /* Cf */
{ 0x2066, 0x206f }, /* Cf */
{ 0xd800, 0xd800 }, /* Cs */
{ 0xdb7f, 0xdb80 }, /* Cs */
{ 0xdbff, 0xdc00 }, /* Cs */
{ 0xdfff, 0xdfff }, /* Cs */
{ 0xe000, 0xe000 }, /* Co */
{ 0xf8ff, 0xf8ff }, /* Co */
{ 0xfeff, 0xfeff }, /* Cf */
{ 0xfff9, 0xfffb }, /* Cf */
{ 0x110bd, 0x110bd }, /* Cf */
{ 0x1bca0, 0x1bca3 }, /* Cf */
{ 0x1d173, 0x1d17a }, /* Cf */
{ 0xe0001, 0xe0001 }, /* Cf */
{ 0xe0020, 0xe007f }, /* Cf */
{ 0xf0000, 0xf0000 }, /* Co */
{ 0xffffd, 0xffffd }, /* Co */
{ 0x100000, 0x100000 }, /* Co */

43
version.c
View File

@ -811,6 +811,47 @@ v489 3/30/17 Make -F not do init/deinit if file fits on one screen
(thanks to Jindrich Novy).
v490 4/5/17 Switch to ANSI prototypes in funcs.h; remove "register".
v491 4/7/17 Fix signed char bug.
v492 4/21/17 Handle SIGTERM.
v493 6/22/17 Fix bug initializing charset in MSDOS build.
v494 6/26/17 Update Unicode tables; make Cf chars composing not binary.
v495 7/3/17 Improve binary file detection (thanks to Bela Lubkin);
do -R filter when matching tags (thanks to Matthew Malcomson).
v496 7/5/17 Add LESSRSCROLL marker.
v497 7/5/17 Sync.
v498 7/7/17 Fix early truncation of text if last char is double-width.
v499 7/10/17 Misc fixes.
v500 7/11/17 Fix bug where certain env variables couldn't be set in lesskey.
v501 7/12/17 Make sure rscroll char is standout by default.
v502 7/13/17 Control rscroll char via command line option not env variable.
v503 7/13/17 Switch to git.
v504 7/13/17 Call opt_rscroll at startup; change mkhelp.c to mkhelp.pl.
v505 7/17/17 Add M and ESC-M commands;
fix buffer handling with stdin and LESSOPEN.
v506 7/17/17 On Windows, convert UTF-8 to multibyte if console is not UTF-8;
handle extended chars on input (thanks to Jason Hood).
v507 7/18/17 Fix some bugs handling filenames containing shell metachars.
v508 7/19/17 Fix bugs when using LESSOPEN to read stdin.
v509 7/19/17 Fix another stdin bug.
v510 7/20/17 Fix bug in determining when to reopen a file.
v511 7/25/17 Fix bugs in recent MSDOS changes (thanks to Jason Hood).
v512 7/26/17 Fix MSDOS build.
v513 7/26/17 Fix switch to normal attr at end of line with -R and rscroll.
v514 7/27/17 Fix bug in fcomplete when pattern does not match a file.
v515 7/28/17 Allow 'u' in -D option on Windows.
v516 7/29/17 Fix bug using LESSOPEN with filename containing metachars.
v517 7/30/17 Status column shows matches even if hiliting is disabled via -G.
v518 8/1/17 Use underline in sgr mode in MSDOS (thanks to Jason Hood).
v519 8/10/17 Fix rscroll bug when last char of line starts coloration.
v520 9/3/17 Fix compiler warning.
v521 10/20/17 Fix binary file warning in UTF-8 files with SGI sequences.
v522 10/20/17 Handle keypad ENTER key properly.
v523 10/23/17 Cleanup.
v524 10/24/17 Fix getcc bug.
v525 10/24/17 Change M command to mark last displayed line.
v526 10/25/17 Fix search hilite bug introduced in v517.
v527 10/30/17 Fix search hilite bug on last page with -a.
v528 11/3/17 Make second ESC-u clear status column.
v529 11/12/17 Display Unicode formatting chars in hex if -U is set.
*/
char version[] = "491";
char version[] = "529";

24
wide.uni
View File

@ -1,4 +1,4 @@
/* Generated by "./mkutable -f1 W F -- unicode/EastAsianWidth.txt" on Tue Sep 20 10:51:43 PDT 2016 */
/* Generated by "./mkutable -f1 W F -- unicode/EastAsianWidth.txt" on Tue Jul 25 09:04:35 PDT 2017 */
{ 0x1100, 0x115f }, /* W */
{ 0x231a, 0x231b }, /* W */
{ 0x2329, 0x232a }, /* W */
@ -42,7 +42,7 @@
{ 0x3001, 0x303e }, /* W */
{ 0x3041, 0x3096 }, /* W */
{ 0x3099, 0x30ff }, /* W */
{ 0x3105, 0x312d }, /* W */
{ 0x3105, 0x312e }, /* W */
{ 0x3131, 0x318e }, /* W */
{ 0x3190, 0x31ba }, /* W */
{ 0x31c0, 0x31e3 }, /* W */
@ -61,10 +61,11 @@
{ 0xfe68, 0xfe6b }, /* W */
{ 0xff01, 0xff60 }, /* F */
{ 0xffe0, 0xffe6 }, /* F */
{ 0x16fe0, 0x16fe0 }, /* W */
{ 0x16fe0, 0x16fe1 }, /* W */
{ 0x17000, 0x187ec }, /* W */
{ 0x18800, 0x18af2 }, /* W */
{ 0x1b000, 0x1b001 }, /* W */
{ 0x1b000, 0x1b11e }, /* W */
{ 0x1b170, 0x1b2fb }, /* W */
{ 0x1f004, 0x1f004 }, /* W */
{ 0x1f0cf, 0x1f0cf }, /* W */
{ 0x1f18e, 0x1f18e }, /* W */
@ -73,6 +74,7 @@
{ 0x1f210, 0x1f23b }, /* W */
{ 0x1f240, 0x1f248 }, /* W */
{ 0x1f250, 0x1f251 }, /* W */
{ 0x1f260, 0x1f265 }, /* W */
{ 0x1f300, 0x1f320 }, /* W */
{ 0x1f32d, 0x1f335 }, /* W */
{ 0x1f337, 0x1f37c }, /* W */
@ -95,14 +97,12 @@
{ 0x1f6cc, 0x1f6cc }, /* W */
{ 0x1f6d0, 0x1f6d2 }, /* W */
{ 0x1f6eb, 0x1f6ec }, /* W */
{ 0x1f6f4, 0x1f6f6 }, /* W */
{ 0x1f910, 0x1f91e }, /* W */
{ 0x1f920, 0x1f927 }, /* W */
{ 0x1f930, 0x1f930 }, /* W */
{ 0x1f933, 0x1f93e }, /* W */
{ 0x1f940, 0x1f94b }, /* W */
{ 0x1f950, 0x1f95e }, /* W */
{ 0x1f980, 0x1f991 }, /* W */
{ 0x1f6f4, 0x1f6f8 }, /* W */
{ 0x1f910, 0x1f93e }, /* W */
{ 0x1f940, 0x1f94c }, /* W */
{ 0x1f950, 0x1f96b }, /* W */
{ 0x1f980, 0x1f997 }, /* W */
{ 0x1f9c0, 0x1f9c0 }, /* W */
{ 0x1f9d0, 0x1f9e6 }, /* W */
{ 0x20000, 0x2fffd }, /* W */
{ 0x30000, 0x3fffd }, /* W */