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  • Linux Man Page Viewer


    The following form allows you to view linux man pages.

    Command:

    rcsfile

    
    
    

    DESCRIPTION

           An RCS file's contents are described by the grammar below.
    
           The  text is free format: space, backspace, tab, newline, vertical tab,
           form feed, and carriage return (collectively, white space) have no sig-
           nificance except in strings.  However, white space cannot appear within
           an id, num, or sym, and an RCS file must end with a newline.
    
           Strings are enclosed by @.  If a string contains a @, it must  be  dou-
           bled; otherwise, strings can contain arbitrary binary data.
    
           The  meta  syntax  uses  the following conventions: '|' (bar) separates
           alternatives; '{' and  '}'  enclose  optional  phrases;  '{'  and  '}*'
           enclose  phrases  that can be repeated zero or more times; '{' and '}+'
           enclose phrases that must appear at least once  and  can  be  repeated;
           Terminal symbols are in boldface; nonterminal symbols are in italics.
    
           rcstext   ::=  admin {delta}* desc {deltatext}*
    
           admin     ::=  head       {num};
                          { branch   {num}; }
                          access     {id}*;
                          symbols    {sym : num}*;
                          locks      {id : num}*;  {strict  ;}
                          { comment  {string}; }
                          { expand   {string}; }
                          { newphrase }*
    
           delta     ::=  num
                          date       num;
                          author     id;
                          state      {id};
                          branches   {num}*;
                          next       {num};
                          { newphrase }*
    
           desc      ::=  desc       string
    
           deltatext ::=  num
                          log        string
                          { newphrase }*
                          text       string
    
           num       ::=  {digit | .}+
    
           digit     ::=  0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9
    
           id        ::=  {num} idchar {idchar | num}*
    
           sym       ::=  {digit}* idchar {idchar | digit}*
    
           idchar    ::=  any visible graphic character except special
    
           Dates,   which   appear  after  the  date  keyword,  are  of  the  form
           Y.mm.dd.hh.mm.ss, where Y is the year, mm the month (01-12), dd the day
           (01-31),  hh the hour (00-23), mm the minute (00-59), and ss the second
           (00-60).  Y contains just the last two digits of  the  year  for  years
           from  1900 through 1999, and all the digits of years thereafter.  Dates
           use the Gregorian calendar; times use UTC.
    
           The newphrase productions in the grammar are reserved for future exten-
           sions  to  the  format  of RCS files.  No newphrase will begin with any
           keyword already in use.
    
           The delta nodes form a tree.  All nodes whose numbers consist of a sin-
           gle  pair (e.g., 2.3, 2.1, 1.3, etc.)  are on the trunk, and are linked
           through the next field in order of decreasing numbers.  The head  field
           in  the  admin node points to the head of that sequence (i.e., contains
           the highest pair).  The branch node in the  admin  node  indicates  the
           default  branch  (or  revision) for most RCS operations.  If empty, the
           default branch is the highest branch on the trunk.
    
           All delta nodes  whose  numbers  consist  of  2n  fields  (n>=2)  (e.g.,
           3.1.1.1,  2.1.2.2, etc.)  are linked as follows.  All nodes whose first
           2n-1 number fields are identical are linked through the next  field  in
           order  of  increasing  numbers.  For each such sequence, the delta node
           whose number is identical to the first 2n-2 number fields of the deltas
           on  that  sequence  is called the branchpoint.  The branches field of a
           node contains a list of the numbers of the first nodes of all sequences
           for which it is a branchpoint.  This list is ordered in increasing num-
           bers.
    
           The following diagram shows an example of an RCS file's organization.
    
                                      Head
                                        |
                                        |
                                        v                        / \
                                    ---------                   /   \
              / \          / \      |       |      / \         /     \
             /   \        /   \     |  2.1  |     /   \       /       \
            /     \      /     \    |       |    /     \     /         \
           /1.2.1.3\    /1.3.1.1\   |       |   /1.2.2.2\   /1.2.2.1.1.1\
           ---------    ---------   ---------   ---------   -------------
               ^            ^           |           ^             ^
               |            |           |           |             |
               |            |           v           |             |
              / \           |       ---------      / \            |
             /   \          |       \  1.3  /     /   \           |
            /     \         ---------\     /     /     \-----------
           /1.2.1.1\                  \   /     /1.2.2.1\
           ---------                   \ /      ---------
               ^                        |           ^
               |                        |           |
    
    
    

    IDENTIFICATION

           Author: Walter F. Tichy, Purdue University, West Lafayette, IN,  47907.
           Manual Page Revision: 5.6; Release Date: 1995/06/05.
           Copyright (C) 1982, 1988, 1989 Walter F. Tichy.
           Copyright (C) 1990, 1991, 1992, 1993, 1994, 1995 Paul Eggert.
    
    
    

    SEE ALSO

           rcsintro(1),  ci(1),  co(1), ident(1), rcs(1), rcsclean(1), rcsdiff(1),
           rcsmerge(1), rlog(1)
           Walter F. Tichy, RCS--A System for Version Control,  Software--Practice
           & Experience 15, 7 (July 1985), 637-654.
    
    
    

    GNU 1995/06/05 RCSFILE(5)

    
    
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