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RedHat 9 (Linux i386) - man page for lv (redhat section 1)

LV(1)				     General Commands Manual				    LV(1)

NAME
       lv: a Powerful Multilingual File Viewer

SYNOPSIS
       lv, lgrep
       lv -h
       lv -V
       lv [-[+]acdfgiklmnqsuvz]
	    [-Acoding-system] [-Icoding-system] [-Kcoding-system]
	    [-Ocoding-system] [-Pcoding-system] [-Dcoding-system]
	    [-Ssseq] [-Srseq] [-Sbseq] [-Suseq] [-Shseq]
	    [-Tnumber] [-Wwidth] [-Hheight] [-E'editor'] [-+]
	    [-] (grep pattern) [files ...]

DESCRIPTION
       Multilingual file viewer
	      lv  is  a powerful multilingual file viewer.  Apparently, lv looks like less (1), a
	      representative file viewer on UNIX as you know, so UNIX people (and less people  on
	      other OSs) don't have to learn a burdensome new interface.  lv can be used on MSDOS
	      ANSI terminals and almost all UNIX platforms.  lv is a currently growing	software,
	      so your feedback is welcome and helpful for us to refine the future lv.

       Multiple coding systems
	      lv  can  decode  and  encode  multilingual streams through many coding systems, for
	      example, ISO 2022 based coding systems such as iso-2022-jp, and EUC (Extended  Unix
	      Code)  like  euc-japan.	Furthermore,  localized coding systems such as shift-jis,
	      big5 and HZ are also supported.  lv can be used not only as a file viewer but  also
	      as a coding-system translation filter like nkf (1) and tcs (1).

       Multilingual regular expressions / Multilingual grep
	      lv  can recognize multi-bytes patterns as regular expressions, and lv also provides
	      multilingual grep (1) functionality by giving  it  another  name,  lgrep.   Pattern
	      matching is conducted in the charset level, so an EUC fragment, for example, can be
	      found in the ISO 2022 tailored streams, of course.

       Supporting the Unicode standard
	      lv provides Unicode facilities which enables you to handle Unicode streams  encoded
	      in  UTF-7  or  UTF-8, and lv can also convert their code-points between Unicode and
	      other charsets.  So you can display Unicode or  foreign  texts  on  your	terminal,
	      using  the  code	conversion function to your favorite charsets via Unicode.  (How-
	      ever, MSDOS version of lv has none of the Unicode facility.)

       ANSI escape sequence through
	      lv can recognize ANSI escape sequences for text decoration.  So you can look  ANSI-
	      decorated  streams  such as colored source codes generated by another software just
	      like intended image on ANSI terminals.

       Completely original
	      lv is a completely original software including no code drawn from less and grep and
	      other programs at all.

OPTIONS
       -A<coding-system>
	      Set all coding systems to coding-system.

       -I<coding-system>
	      Set input coding system to coding-system.

       -K<coding-system>
	      Set  keyboard coding system to coding-system.  If it is not set, output coding sys-
	      tem will be applied to it.

       -O<coding-system>
	      Set output coding system to coding-system.

       -P<coding-system>
	      Set pathname coding system to coding-system.

       -D<coding-system>
	      Set default EUC coding system to coding-system.

       coding-system:
	      a: auto-select (only for input stream)
	      c: iso-2022-cn
	      j: iso-2022-jp
	      k: iso-2022-kr
	      ec: euc-china
	      ej: euc-japan
	      ek: euc-korea
	      et: euc-taiwan
	      u7: UTF-7
	      u8: UTF-8
	      l1..9: iso-8859-1..9
	      s: shift-jis
	      b: big5
	      h: HZ
	      r: raw mode

       Examples:
	      -Il2: input coding system is iso-8859-2
	      -Ks:  keyboard coding system is shift-jis
	      -Oek: output coding system is euc-korea
	      -Ab:  all coding systems are big5

       Coding-system translations / Code-points conversions:
	      iso-2022-cn, -jp, -kr can be converted into euc-china or -taiwan,  euc-japan,  euc-
	      korea, respectively (and vice versa).  shift-jis uses the same internal code-points
	      as iso-2022-jp and euc-japan.

	      Since big5 characters can be converted into CNS 11643-1992 with  negligible  incom-
	      pleteness,  big5 streams can be translated into iso-2022-cn or euc-taiwan (and vice
	      versa) with code-points conversion.  Note that the iso-2022-cn referred here is not
	      GB  sequence, only just CNS one.	You should remember that lv cannot translate big5
	      into GB directly.

	      The search function of lv may not work  correctly  when  lv  additionally  performs
	      ``code-points''  conversion  (not  ``coding-system''  translation), because visible
	      code and internal code are different from each other.  lv will try  to  avoid  this
	      problem  with  converting charsets of search patterns automatically, but this func-
	      tion is not always perfect.

       -W<number>
	      Screen width

       -H<number>
	      Screen height

       -E'<editor>' (default 'vi -c %d')
	      Editor name (default 'vi -c %d')
	      ``%d'' means the line number of current position in a file.

       -q     Assert there is delete/insert-lines control.
	      Please set this option on a MSDOS ANSI  terminal	that  has  capability  to  delete
	      and/or  insert lines.  As to termcap and terminfo version, it will be set automati-
	      cally.

       -Ss<seq>
	      Set ANSI Standout sequence to seq  (default "7")

       -Sr<seq>
	      Set ANSI Reverse sequence to seq	 (default "7")

       -Sb<seq>
	      Set ANSI Blink sequence to seq	 (default "5")

       -Su<seq>
	      Set ANSI Underline sequence to seq (default "4")

       -Sh<seq>
	      Set ANSI Highlight sequence to seq (default "1")

	      These sequences are inserted between ``ESC ['' and ``m''	to  construct  full  ANSI
	      escape sequences.

       -T<number>
	      Set  Threshold-code  which  divides  Unicode code-points in two regions. Characters
	      belonging to the lower region are assumed to have a width of one,  and  the  higher
	      characters are equated to a width of two. (Default: 12288, = 0x3000)

       -m     Force  Unicode code-points which have the same glyphs as iso-8859-* to be Mapped to
	      iso-8859-* in a conversion from Unicode to another character set which also has the
	      corresponding code-points, in particular, Asian charsets.

       -a     Adjust character set for search pattern (default)

       -c     Allow ANSI escape sequences for text decoration (Color)

       -d, -i Make regexp-searches ignore case (case folD search) (default)

       -f     Substitute Fixed strings for regular expressions

       -k     Convert X0201 Katakana to X0208

       -l     Allow  physical lines of each logical line printed on the screen to be concatenated
	      for cut and paste after screen refresh

       -s     Force old pages to be swept out from the screen Smoothly

       -u     Unify several character sets, eg. JIS X0208 and C6226.  In addition, lv equates ISO
	      646 variants, eg. JIS X0201-Roman, and unknown charsets with ASCII.

       -g     Turn on lgrep mode.

       -n     Prefix each line of output with the line number within its input file on lgrep.

       -v     Invert the sense of matching on lgrep.

       -z     Enable HZ auto-detection (also enabled by run-time C-t).

       -+     Clear all options
	      You can also turn OFF specified options, using ``+<option>'' like +c, +d, ... +z.

       -      Treat the following arguments as filenames

       grep pattern
	      lv works like grep (1) when its name is lgrep

       -V     Show lv version

       -h     Show this help

CONFIGURATION
       Options	can  be described in configuration file ``.lv'' (``_lv'' on MSDOS) located at you
       HOME directory and/or current working directory.  They can be also described in the  envi-
       ronment	variable  LV.	Every configuration will be overloaded in this order if there is.
       Command line options are always read finally.

COMMAND KEY BINDINGS
       0..9:  Argument

       g, <:  Jump to the line number (default: top of the file)

       G, >:  Jump to the line number (default: bottom of the file)

       p:     Jump to the percentage position in line numbers (0-100)

       b, C-b:
	      Previous page

       u, C-u:
	      Previous half page

       k, w, C-k, y, C-y, C-p:
	      Previous line

       j, C-j, e, C-e, C-n, CR:
	      Next line

       d, C-d:
	      Next half page

       f, C-f, C-v, SP:
	      Next page

       /<string>:
	      Find a string in the forward direction (regular expression)

       ?<string>:
	      Find a string in the backward direction (regular expression)

       n:     Repeat previous search in forward direction

       N:     Repeat previous search in backward direction (not REVERSE)

       C-l:   Redisplay all lines

       r, C-r:
	      Refresh screen and memory

       R:     Reload current file

       :n:    Examine the next file

       :p:    Examine the previous file

       t:     Toggle input coding systems

       T:     Toggle input coding systems reversely

       C-t:   Toggle HZ decoding mode

       v:     Launch the editor defined by option -E

       C-g, =:
	      Show file information (filename, position, coding system)

       V:     Show LV version

       C-z:   Suspend (call SHELL or ``command.com'' under MSDOS)

       q, Q:  Quit

       UP/DOWN:
	      Previous/Next line

       LEFT/RIGHT:
	      Previous/Next half page

       PageUp/PageDown:
	      Previous/Next page

HOW TO INPUT SEARCH STRINGS?
       C-m, Enter:
	      Enter the current string

       C-h, BS, DEL:
	      Delete one character (backspace)

       C-u:   Cancel the current string and try again

       C-p:   Restore a few old strings incrementally (history)

       C-g:   Quit

REGULAR EXPRESSION
       Special characters are ^, $, ., *, +, ?, [, ^, -,  ], \.  \| specifies an alternative. \(,
       \)  is  a grouping construct.  \1 and \2 matches any charset consists of one- or two- col-
       umn(s) characters respectively. Mutually overlapping ranges (or charset) are  not  guaran-
       teed.

SEE ALSO
       LV Homepage: http://www.ff.iij4u.or.jp/~nrt/lv/

COPYRIGHT
       All rights reserved. Copyright (C) 1996-1999 by NARITA Tomio.

       This program is free software; you can redistribute it and/or modify it under the terms of
       the GNU General Public License as published by the Free Software Foundation;  either  ver-
       sion 2 of the License, or (at your option) any later version.

       This  program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
       without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR  PURPOSE.
       See the GNU General Public License for more details.

       You should have received a copy of the GNU General Public License along with this program;
       if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite  330,  Boston,
       MA  02111-1307  USA

BUG REPORT
       Please send bug reports to: nrt@ff.iij4u.or.jp

				     v.4.49.4 (Aug.24th,2000)				    LV(1)


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