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RedHat 9 (Linux i386) - man page for frontend-spec (redhat section 7)

FRONTEND-SPEC(7)								 FRONTEND-SPEC(7)

NAME
       frontend-spec - interface between jw and its frontends

DESCRIPTION
       jw(1)  calls  frontends like frontends/docbook to get the informations specific to a given
       input format. The frontend knows which information to return from the first  command  line
       parameter. It gets all necessary data via environment variables ready to use.

       This document describes that command line parameter and those environment variables.

       The  frontend  should  return  0 if there weren't any problem, and return a positive value
       otherwise.

VARIABLES
		 $1
	      The command line parameter, specifying which information to return. It can take the
	      following values:

	      centralized-catalog
		     The  frontend  must  return the DTD-specific centralized catalog name.  Cen-
		     tralized catalogs normally reside in /etc/sgml and provide the  location  of
		     all  the  catalog files useful for handling this input type (the catalog for
		     the DTD, the catalog for the stylesheets, the catalog for the entities, ...)

	      style-sheet
		     The frontend must return the filename of the style sheet to be used for this
		     document type and with the chosen backend.

		 SGML_CATALOGS_DIR
	      The directory where the centralized catalogs reside. It is normally /etc/sgml.

	      (This variable is valid only while determining the centralized catalog to use.)

		 SGML_BASE_DIR
	      The base directory of the SGML system. It is normally /usr/share/sgml.

	      (This variable is valid only while determining the style sheet to use.)

		 SGML_FILE
	      The name of the file to convert.

	      (This variable is valid only while determining the centralized catalog to use.)

		 SGML_TYPE
	      The  type  of  the backend to use, whether it produces output files to be displayed
	      online or to be printed out.  It can take the value html or print.

	      (This variable is valid only while determining the style sheet to use).

		 SGML_STYLESHEETS
	      The desired custom stylesheet type, either none or default.  If none, the  frontend
	      must  return  the  file  name of the style sheet provided by the system beneath the
	      docbook-utils.  If default, the frontend must return the custom stylesheet provided
	      by the docbook-utils.

	      (This variable is valid only while determining the style sheet to use).

		 SGML_XML
	      The metalanguage of the file to convert, either sgml or xml.

	      (This variable is valid only while determining the centralized catalog to use).

FILES
SEE ALSO
       backend-spec(7)

AUTHORS
       Jochem Huhmann <joh@revier.com>

					 05 February 2003			 FRONTEND-SPEC(7)


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