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PRS(P)				    POSIX Programmer's Manual				   PRS(P)

NAME
       prs - print an SCCS file (DEVELOPMENT)

SYNOPSIS
       prs [-a][-d dataspec][-r[SID]] file...

       prs [ -e| -l] -c cutoff [-d dataspec] file...

       prs [ -e| -l] -r[SID][-d dataspec]file...

DESCRIPTION
       The prs utility shall write to standard output parts or all of an SCCS file in a user-sup-
       plied format.

OPTIONS
       The prs utility shall conform to the Base Definitions volume of IEEE Std 1003.1-2001, Sec-
       tion  12.2,  Utility  Syntax Guidelines, except that the -r option has an optional option-
       argument. This optional option-argument cannot be presented as a  separate  argument.  The
       following options shall be supported:

       -d  dataspec
	      Specify the output data specification. The dataspec shall be a string consisting of
	      SCCS file data keywords (see Data Keywords ) interspersed with  optional	user-sup-
	      plied text.

       -r[SID]
	      Specify  the  SCCS  identification string (SID) of a delta for which information is
	      desired. If no SID option-argument is specified, the SID of the most recently  cre-
	      ated delta shall be assumed.

       -e     Request  information  for  all  deltas created earlier than and including the delta
	      designated via the -r option or the date-time given by the -c option.

       -l     Request information for all deltas created later than and including the delta  des-
	      ignated via the -r option or the date-time given by the -c option.

       -c  cutoff
	      Indicate the cutoff date-time, in the form:

	      YY[MM[DD[HH[MM[SS]]]]]

       For the YY component, values in the range [69,99] shall refer to years 1969 to 1999 inclu-
       sive, and values in the range [00,68] shall refer to years 2000 to 2068 inclusive.

       Note:
	      It is expected that in a future version of IEEE Std 1003.1-2001 the default century
	      inferred from a 2-digit year will change. (This would apply to all commands accept-
	      ing a 2-digit year as input.)

       No changes (deltas) to the SCCS file that were created after the  specified  cutoff  date-
       time  shall  be	included in the output. Units omitted from the date-time default to their
       maximum possible values; for example, -c 7502 is equivalent to -c 750228235959.

       -a     Request writing of information for both removed-that is, delta type= R  (see  rmdel
	      )- and existing-that is, delta type= D,- deltas. If the -a option is not specified,
	      information for existing deltas only shall be provided.

OPERANDS
       The following operand shall be supported:

       file   A pathname of an existing SCCS file or a directory. If file is a directory, the prs
	      utility shall behave as though each file in the directory were specified as a named
	      file, except that non-SCCS files (last component of the  pathname  does  not  begin
	      with s.) and unreadable files shall be silently ignored.

       If  exactly  one  file  operand appears, and it is '-' , the standard input shall be read;
       each line of the standard input shall be taken to be the name of an SCCS file to  be  pro-
       cessed.	Non-SCCS files and unreadable files shall be silently ignored.

STDIN
       The  standard  input  shall be a text file used only when the file operand is specified as
       '-' . Each line of the text file shall be interpreted as an SCCS pathname.

INPUT FILES
       Any SCCS files displayed are files of an unspecified format.

ENVIRONMENT VARIABLES
       The following environment variables shall affect the execution of prs:

       LANG   Provide a default value for the internationalization variables that  are	unset  or
	      null. (See the Base Definitions volume of IEEE Std 1003.1-2001, Section 8.2, Inter-
	      nationalization Variables for the precedence of internationalization variables used
	      to determine the values of locale categories.)

       LC_ALL If  set  to a non-empty string value, override the values of all the other interna-
	      tionalization variables.

       LC_CTYPE
	      Determine the locale for the interpretation of sequences of bytes of text  data  as
	      characters  (for	example, single-byte as opposed to multi-byte characters in argu-
	      ments and input files).

       LC_MESSAGES
	      Determine the locale that should be used to affect the format and contents of diag-
	      nostic messages written to standard error.

       NLSPATH
	      Determine the location of message catalogs for the processing of LC_MESSAGES .

ASYNCHRONOUS EVENTS
       Default.

STDOUT
       The  standard  output  shall be a text file whose format is dependent on the data keywords
       specified with the -d option.

   Data Keywords
       Data keywords specify which parts of an SCCS file shall be retrieved and output. All parts
       of  an  SCCS file have an associated data keyword. A data keyword may appear in a dataspec
       multiple times.

       The information written by prs shall consist of:

	1. The user-supplied text

	2. Appropriate values (extracted from the SCCS file) substituted for the recognized  data
	   keywords in the order of appearance in the dataspec

       The  format  of a data keyword value shall either be simple ( 'S' ), in which keyword sub-
       stitution is direct, or multi-line ( 'M' ).

       User-supplied text shall be any text other than recognized data keywords.  A  <tab>  shall
       be  specified  by  '\t'	and  <newline> by '\n' . When the -r option is not specified, the
       default dataspec shall be:

	      :PN::\n\n

       and the following dataspec shall be used for each selected delta:

	      :Dt:\t:DL:\nMRs:\n:MR:COMMENTS:\n:C:

					SCCS File Data Keywords
	      Keyword Data Item 		     File Section Value 	    Format
	      :Dt:    Delta information 	     Delta Table  See below*	    S
	      :DL:    Delta line statistics	     "		  :Li:/:Ld:/:Lu:    S
	      :Li:    Lines inserted by Delta	     "		  nnnnn***	    S
	      :Ld:    Lines deleted by Delta	     "		  nnnnn***	    S
	      :Lu:    Lines unchanged by Delta	     "		  nnnnn***	    S
	      :DT:    Delta type		     "		  D or R	    S
	      :I:     SCCS ID string (SID)	     "		  See below**	    S
	      :R:     Release number		     "		  nnnn		    S
	      :L:     Level number		     "		  nnnn		    S
	      :B:     Branch number		     "		  nnnn		    S
	      :S:     Sequence number		     "		  nnnn		    S
	      :D:     Date delta created	     "		  :Dy:/:Dm:/:Dd:    S
	      :Dy:    Year delta created	     "		  nn		    S
	      :Dm:    Month delta created	     "		  nn		    S
	      :Dd:    Day delta created 	     "		  nn		    S
	      :T:     Time delta created	     "		  :Th:::Tm:::Ts:    S
	      :Th:    Hour delta created	     "		  nn		    S
	      :Tm:    Minutes delta created	     "		  nn		    S
	      :Ts:    Seconds delta created	     "		  nn		    S
	      :P:     Programmer who created Delta   "		  logname	    S
	      :DS:    Delta sequence number	     "		  nnnn		    S
	      :DP:    Predecessor Delta sequence     "		  nnnn		    S
		      number
	      :DI:    Sequence number of deltas      "		  :Dn:/:Dx:/:Dg:    S
		      included, excluded, or ignored
	      :Dn:    Deltas included (sequence #)   "		  :DS: :DS: ...     S
	      :Dx:    Deltas excluded (sequence #)   "		  :DS: :DS: ...     S
	      :Dg:    Deltas ignored (sequence #)    "		  :DS: :DS: ...     S
	      :MR:    MR numbers for delta	     "		  text		    M
	      :C:     Comments for delta	     "		  text		    M
	      :UN:    User names		     User Names   text		    M
	      :FL:    Flag list 		     Flags	  text		    M
	      :Y:     Module type flag		     "		  text		    S
	      :MF:    MR validation flag	     "		  yes or no	    S
	      :MP:    MR validation program name     "		  text		    S
	      :KF:    Keyword error, warning flag    "		  yes or no	    S
	      :KV:    Keyword validation string      "		  text		    S
	      :BF:    Branch flag		     "		  yes or no	    S
	      :J:     Joint edit flag		     "		  yes or no	    S
	      :LK:    Locked releases		     "		  :R: ...	    S
	      :Q:     User-defined keyword	     "		  text		    S
	      :M:     Module name		     "		  text		    S
	      :FB:    Floor boundary		     "		  :R:		    S
	      :CB:    Ceiling boundary		     "		  :R:		    S
	      :Ds:    Default SID		     "		  :I:		    S
	      :ND:    Null delta flag		     "		  yes or no	    S
	      :FD:    File descriptive text	     Comments	  text		    M
	      :BD:    Body			     Body	  text		    M

	      :GB:    Gotten body		     "		  text		    M
	      :W:     A form of what string	     N/A	  :Z::M:\t:I:	    S
	      :A:     A form of what string	     N/A	  :Z::Y: :M: :I::Z: S
	      :Z:     what string delimiter	     N/A	  @(#)		    S
	      :F:     SCCS filename		     N/A	  text		    S
	      :PN:    SCCS file pathname	     N/A	  text		    S

       *      :Dt:= :DT: :I: :D: :T: :P: :DS: :DP:

       **     :R:.:L:.:B:.:S: if the delta is a branch delta ( :BF:== yes)
	      :R:.:L: if the delta is not a branch delta ( :BF:== no)

       ***    The line statistics are  capped  at  99999.  For	example,  if  100000  lines  were
	      unchanged in a certain revision, :Lu: shall produce the value 99999.

STDERR
       The standard error shall be used only for diagnostic messages.

OUTPUT FILES
       None.

EXTENDED DESCRIPTION
       None.

EXIT STATUS
       The following exit values shall be returned:

	0     Successful completion.

       >0     An error occurred.

CONSEQUENCES OF ERRORS
       Default.

       The following sections are informative.

APPLICATION USAGE
       None.

EXAMPLES
	1. The following example:

	   prs -d "User Names for :F: are:\n:UN:" s.file

       might write to standard output:

	      User Names for s.file are:
	      xyz
	      131
	      abc

	2. The following example:

	   prs -d "Delta for pgm :M:: :I: - :D: By :P:" -r s.file

       might write to standard output:

	      Delta for pgm main.c: 3.7 - 77/12/01 By cas

	3. As a special case:

	   prs s.file

       might write to standard output:

	      s.file:
	      <blank line>
	      D 1.1 77/12/01 00:00:00 cas 1 000000/00000/00000
	      MRs:
	      bl78-12345
	      bl79-54321
	      COMMENTS:
	      this is the comment line for s.file initial delta
	      <blank line>

       for  each  delta  table	entry of the D type. The only option allowed to be used with this
       special case is the -a option.

RATIONALE
       None.

FUTURE DIRECTIONS
       None.

SEE ALSO
       admin , delta , get , what

COPYRIGHT
       Portions of this text are reprinted and	reproduced  in	electronic  form  from	IEEE  Std
       1003.1,	2003  Edition,	Standard  for Information Technology -- Portable Operating System
       Interface (POSIX), The Open Group Base Specifications Issue 6, Copyright (C) 2001-2003  by
       the  Institute  of  Electrical  and  Electronics Engineers, Inc and The Open Group. In the
       event of any discrepancy between this version and the original IEEE  and  The  Open  Group
       Standard, the original IEEE and The Open Group Standard is the referee document. The orig-
       inal Standard can be obtained online at http://www.opengroup.org/unix/online.html .

IEEE/The Open Group			       2003					   PRS(P)
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