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NetBSD 6.1.5 - man page for gencat (netbsd section 1)

GENCAT(1)			   BSD General Commands Manual				GENCAT(1)

NAME
     gencat -- generates a Native Language Support (NLS) message catalog file

SYNOPSIS
     gencat catfile [msgfile|- ...]

DESCRIPTION
     The gencat utility generates a formatted message catalog catfile from stdin or one or more
     message source text files msgfile.  The file catfile is created if it does not already
     exist.  If catfile does exist, its messages are included in the new catfile.  The new mes-
     sage text defined in msgfile replaces the old message text currently in catfile when the set
     and message numbers match.

     The generated message catalog contains message strings that will be retrieved using the
     catgets(3) library call.  These messages are dynamically loaded by the Native Language Sup-
     port (NLS) library at run time.  Error messages are grouped into sets, and a program can
     load a particular set depending on which type, or language, of messages is desired.

   Message Text Source File Format
     The message text source files are text files in the format described below.  Note that the
     fields of a message text source line are separated by space or tab characters.

     $set n comment
	  Determines the set identifier to be used for all subsequent messages until the next
	  $set or end-of-file.	The n is the set identifier which is defined as a number in the
	  range [1, NL_SETMAX].  Set identifiers within a single source file need not be contigu-
	  ous.	Any string following the set identifier is treated as a comment.  If no $set
	  directive is specified in a message text source file, all messages will be located in
	  the default message set NL_SETD.

     $delset n comment
	  Removes message set n from the catalog.  The n is a set identifier in the range [1,
	  NL_SETMAX].  If a message set was created earlier in the current file, or in a file
	  previously read by the gencat command, this directive will remove it.  Any string fol-
	  lowing the set identifier is treated as a comment.

     $ comment
	  A line beginning with $ followed by a space or tab character is treated as a comment.

     m message-text
	  A message line consists of a message identifier m in the range [1, NL_MSGMAX] and the
	  message-text.  The message-text is read until the end of the line or a quote character
	  (if one is specified).  The message-text is stored in the message catalog with the set
	  identifier specified by the last $set directive, and the message identifier m.  If the
	  message-text is empty and there is a space or tab character following the message iden-
	  tifier, an empty string is stored in the message catalog.  If no message-text is pro-
	  vided, and if there is no space or tab character following the message identifier, the
	  message with the message identifier m in the current set is removed from the catalog.
	  Message identifiers need not be contiguous within a single set.  The length of
	  message-text must be in the range [0, NL_TEXTMAX].

     $quote c
	  Sets an optional quote character to be used around the message-text.	The quote charac-
	  ter c may be any character other than white space.  If this is specified, then messages
	  must begin and end with the quote character.	This is useful when messages must contain
	  leading white space.	By default no quote character is used.	If an empty $quote direc-
	  tive is specified, then the current quote character is unset.

     Empty lines and leading blanks in a message text source file are ignored.	Any line begin-
     ning with any character other than those described above is ignored as a syntax error.

     Text message strings may contain any characters and the following special characters and
     escape sequences.

	   Description	      Symbol	Sequence
	   newline	      NL(LF)	\n
	   horizontal tab     HT	\t
	   vertical tab       VT	\v
	   backspace	      BS	\b
	   carriage return    CR	\r
	   form feed	      FF	\f
	   backslash	      \ 	\\
	   bit pattern	      ddd	\ddd

     A bit pattern, \ddd, consists of a backslash followed by one, two, or three octal digits
     representing the value of the character.  The current quote character, if defined, may be
     escaped with a backslash to generate the quote character.	Any character following the back-
     slash ('\') other than those specified is ignored.

     A backslash at the end of the line continues the message onto the next line.  The following
     two lines are an example of such a message:

	   1 This message continues \
	   on the next line

     Producing the following message:

	   1 This message continues on the next line

EXIT STATUS
     The gencat utility exits 0 on success, and >0 if an error occurs.

SEE ALSO
     catclose(3), catgets(3), catopen(3), nls(7)

AUTHORS
     The Native Language Support (NLS) message catalog facility was contributed by J.T. Conklin
     <jtc@NetBSD.org>.	This page was originally written by
     Kee Hinckley <nazgul@somewhere.com>.

BSD					December 29, 2011				      BSD


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