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Code Issues Releases Activity

Virgin import of less v416.

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This commit is contained in:
Xin LI 2007-11-26 08:57:30 +00:00
parent 9b045eb7f4
commit 33a9f6ab73
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/vendor/less/dist/; revision=173932
svn path=/vendor/less/v416/; revision=173934; tag=vendor/less/v416
10 changed files with 70 additions and 61 deletions
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2
contrib/less/NEWS
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@ -13,7 +13,7 @@
======================================================================
Major changes between "less" versions 409 and 415
Major changes between "less" versions 409 and 416
* New --follow-name option makes F command follow the name of a file
rather than the file descriptor if an open file is renamed.

4
contrib/less/README
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@ -1,7 +1,7 @@
Less, version 415
Less, version 416
This is the distribution of less, version 415, released 15 Nov 2007.
This is the distribution of less, version 416, released 22 Nov 2007.
This program is part of the GNU project (http://www.gnu.org).
This program is free software. You may redistribute it and/or

80
contrib/less/less.man
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@ -445,8 +445,8 @@ LESS(1) LESS(1)
buffer space is used for each file (unless the file is a pipe;
see the -B option). The -b option specifies instead that n
kilobytes of buffer space should be used for each file. If n is
-1, buffer space is unlimited; that is, the entire file is read
into memory.
-1, buffer space is unlimited; that is, the entire file can be
read into memory.
-B or --auto-buffers
By default, when data is read from a pipe, buffers are allocated
@ -456,8 +456,8 @@ LESS(1) LESS(1)
buffers for pipes, so that only 64K (or the amount of space
specified by the -b option) is used for the pipe. Warning: use
of -B can result in erroneous display, since only the most
recently viewed part of the file is kept in memory; any earlier
data is lost.
recently viewed part of the piped data is kept in memory; any
earlier data is lost.
-c or --clear-screen
Causes full screen repaints to be painted from the top line
@ -533,42 +533,44 @@ LESS(1) LESS(1)
-jn or --jump-target=n
Specifies a line on the screen where the "target" line is to be
positioned. A target line is the object of a text search, tag
search, jump to a line number, jump to a file percentage, or
jump to a marked position. The screen line may be specified by
a number: the top line on the screen is 1, the next is 2, and so
on. The number may be negative to specify a line relative to
the bottom of the screen: the bottom line on the screen is -1,
the second to the bottom is -2, and so on. Alternately, the
screen line may be specified as a fraction of the height of the
screen, starting with a decimal point: .5 is in the middle of
the screen, .3 is three tenths down from the first line, and so
on. If the line is specified as a fraction, the actual line
positioned. The target line is the line specified by any com-
mand to search for a pattern, jump to a line number, jump to a
file percentage or jump to a tag. The screen line may be speci-
fied by a number: the top line on the screen is 1, the next is
2, and so on. The number may be negative to specify a line rel-
ative to the bottom of the screen: the bottom line on the screen
is -1, the second to the bottom is -2, and so on. Alternately,
the screen line may be specified as a fraction of the height of
the screen, starting with a decimal point: .5 is in the middle
of the screen, .3 is three tenths down from the first line, and
so on. If the line is specified as a fraction, the actual line
number is recalculated if the terminal window is resized, so
that the target line remains at the specified fraction of the
screen height. If the -j option is used, searches begin at the
line immediately after the target line. For example, if "-j4"
is used, the target line is the fourth line on the screen, so
searches begin at the fifth line on the screen.
screen height. If any form of the -j option is used, forward
searches begin at the line immediately after the target line,
and backward searches begin at the target line. For example, if
"-j4" is used, the target line is the fourth line on the screen,
so forward searches begin at the fifth line on the screen.
-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
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.
-kfilename or --lesskey-file=filename
Causes less to open and interpret the named file as a lesskey
Causes less to open and interpret the named file as a lesskey
(1) file. Multiple -k options may be specified. If the LESSKEY
or LESSKEY_SYSTEM environment variable is set, or if a lesskey
or LESSKEY_SYSTEM environment variable is set, or if a lesskey
file is found in a standard place (see KEY BINDINGS), it is also
used as a lesskey file.
-K or --quit-on-intr
Causes less to exit immediately when an interrupt character
(usually ^C) is typed. Normally, an interrupt character causes
less to stop whatever it is doing and return to its command
prompt.
Causes less to exit immediately when an interrupt character
(usually ^C) is typed. Normally, an interrupt character causes
less to stop whatever it is doing and return to its command
prompt. Note that use of this option makes it impossible to
return to the command prompt from the "F" command.
-L or --no-lessopen
Ignore the LESSOPEN environment variable (see the INPUT PREPRO-
@ -739,8 +741,8 @@ LESS(1) LESS(1)
-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
continue with the same spacing as the last two. For example,
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.
@ -1159,10 +1161,10 @@ LESS(1) LESS(1)
is followed by a single character (shown as X above) which spec-
ifies the line whose byte offset is to be used. If the charac-
ter is a "t", the byte offset of the top line in the display is
used, an "m" means use the middle line, a "b" means use the
bottom line, a "B" means use the line just after the bottom
line, and a "j" means use the "target" line, as specified by the
-j option.
used, an "m" means use the middle line, a "b" means use the bot-
tom line, a "B" means use the line just after the bottom line,
and a "j" means use the "target" line, as specified by the -j
option.
%B Replaced by the size of the current input file.
@ -1509,10 +1511,10 @@ LESS(1) LESS(1)
expressions turned off via ^R, and also does not occur when less is
compiled to use the PCRE regular expression library.
In certain cases, when search highlighting is enabled and a search
pattern begins with a ^, more text than the matching string may be
highlighted. (This problem does not occur when less is compiled to use
the POSIX regular expression package.)
In certain cases, when search highlighting is enabled and a search pat-
tern begins with a ^, more text than the matching string may be high-
lighted. (This problem does not occur when less is compiled to use the
POSIX regular expression package.)
On some systems, setlocale claims that ASCII characters 0 thru 31 are
control characters rather than binary characters. This causes less to
@ -1554,4 +1556,4 @@ LESS(1) LESS(1)
Version 415: 15 Nov 2007 LESS(1)
Version 416: 22 Nov 2007 LESS(1)

21
contrib/less/less.nro
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@ -1,4 +1,4 @@
.TH LESS 1 "Version 415: 15 Nov 2007"
.TH LESS 1 "Version 416: 22 Nov 2007"
.SH NAME
less \- opposite of more
.SH SYNOPSIS
@ -462,7 +462,7 @@ By default 64K of buffer space is used for each file
The \-b option specifies instead that \fIn\fP kilobytes of
buffer space should be used for each file.
If \fIn\fP is \-1, buffer space is unlimited; that is,
the entire file is read into memory.
the entire file can be read into memory.
.IP "\-B or \-\-auto-buffers"
By default, when data is read from a pipe,
buffers are allocated automatically as needed.
@ -473,7 +473,7 @@ so that only 64K
(or the amount of space specified by the \-b option)
is used for the pipe.
Warning: use of \-B can result in erroneous display, since only the
most recently viewed part of the file is kept in memory;
most recently viewed part of the piped data is kept in memory;
any earlier data is lost.
.IP "\-c or \-\-clear-screen"
Causes full screen repaints to be painted from the top line down.
@ -555,9 +555,9 @@ the pattern contains uppercase letters.
.IP "\-j\fIn\fP or \-\-jump-target=\fIn\fP"
Specifies a line on the screen where the "target" line
is to be positioned.
A target line is the object of a text search,
tag search, jump to a line number,
jump to a file percentage, or jump to a marked position.
The target line is the line specified by any command to
search for a pattern, jump to a line number,
jump to a file percentage or jump to a tag.
The screen line may be specified by a number: the top line on the screen
is 1, the next is 2, and so on.
The number may be negative to specify a line relative to the bottom
@ -569,10 +569,11 @@ screen, .3 is three tenths down from the first line, and so on.
If the line is specified as a fraction, the actual line number
is recalculated if the terminal window is resized, so that the
target line remains at the specified fraction of the screen height.
If the \-j option is used, searches begin at the line immediately
after the target line.
If any form of the \-j option is used,
forward searches begin at the line immediately after the target line,
and backward searches begin at the target line.
For example, if "\-j4" is used, the target line is the
fourth line on the screen, so searches begin at the fifth line
fourth line on the screen, so forward searches begin at the fifth line
on the screen.
.IP "\-J or \-\-status-column"
Displays a status column at the left edge of the screen.
@ -597,6 +598,8 @@ to exit immediately when an interrupt character (usually ^C) is typed.
Normally, an interrupt character causes
.I less
to stop whatever it is doing and return to its command prompt.
Note that use of this option makes it impossible to return to the
command prompt from the "F" command.
.IP "\-L or \-\-no-lessopen"
Ignore the LESSOPEN environment variable
(see the INPUT PREPROCESSOR section below).

2
contrib/less/lessecho.man
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@ -46,4 +46,4 @@ LESSECHO(1) LESSECHO(1)
Version 415: 15 Nov 2007 LESSECHO(1)
Version 416: 22 Nov 2007 LESSECHO(1)

2
contrib/less/lessecho.nro
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@ -1,4 +1,4 @@
.TH LESSECHO 1 "Version 415: 15 Nov 2007"
.TH LESSECHO 1 "Version 416: 22 Nov 2007"
.SH NAME
lessecho \- expand metacharacters
.SH SYNOPSIS

2
contrib/less/lesskey.man
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@ -357,4 +357,4 @@ LESSKEY(1) LESSKEY(1)
Version 415: 15 Nov 2007 LESSKEY(1)
Version 416: 22 Nov 2007 LESSKEY(1)

2
contrib/less/lesskey.nro
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@ -1,4 +1,4 @@
.TH LESSKEY 1 "Version 415: 15 Nov 2007"
.TH LESSKEY 1 "Version 416: 22 Nov 2007"
.SH NAME
lesskey \- specify key bindings for less
.SH SYNOPSIS

13
contrib/less/search.c
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@ -118,13 +118,16 @@ cvt_length(len, ops)
int len;
int ops;
{
if (utf_mode && (ops & CVT_TO_LC))
if (utf_mode)
/*
* Converting case can cause a UTF-8 string to increase in length.
* Multiplying by 3 is the worst case.
* Just copying a string in UTF-8 mode can cause it to grow
* in length.
* Six output bytes for one input byte is the worst case
* (and unfortunately is far more than is needed in any
* non-pathological situation, so this is very wasteful).
*/
len *= 3;
return len+1;
len *= 6;
return len + 1;
}
/*

3
contrib/less/version.c
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@ -701,6 +701,7 @@ v412 11/6/07 Use symbolic SEEK constants.
v413 11/6/07 Fix search highlight bug with non-ASCII text.
v414 11/6/07 Fix display bug with no-wrap terminals.
v415 11/14/07 Add --follow-name option.
v416 11/22/07 Fix crash when searching text with invalid UTF-8 sequences.
*/
char version[] = "415";
char version[] = "416";