NAME<\/a> frontend-spec \u2212 interface between jw and its frontends<\/p>\n jw<\/b>(1) calls frontends like frontends\/docbook<\/i> 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.<\/p>\n This document describes that command line parameter and those environment variables.<\/p>\n The frontend should return 0 if there weren\u2019t any problem, and return a positive value otherwise.<\/p>\n $1<\/b><\/p>\n The command line parameter, specifying which information to return. It can take the following values: The frontend must return the DTD-specific centralized catalog name. Centralized catalogs normally reside in \/etc\/sgml<\/i> 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,<\/p>\n style-sheet<\/b><\/p>\n The frontend must return the filename of the style sheet to be used for this document type and with the chosen backend.<\/p>\n SGML_CATALOGS_DIR<\/b><\/p>\n The directory where the centralized catalogs reside. It is normally \/etc\/sgml<\/i>.<\/p>\n (This variable is valid only while determining the centralized catalog to use.)<\/p>\n SGML_BASE_DIR<\/b><\/p>\n The base directory of the SGML system. It is normally \/usr\/share\/sgml<\/i>.<\/p>\n (This variable is valid only while determining the style sheet to use.)<\/p>\n SGML_FILE<\/b><\/p>\n The name of the file to convert.<\/p>\n (This variable is valid only while determining the centralized catalog to use.)<\/p>\n SGML_TYPE<\/b><\/p>\n 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.<\/p>\n (This variable is valid only while determining the style sheet to use).<\/p>\n SGML_STYLESHEETS<\/b><\/p>\n 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.<\/p>\n (This variable is valid only while determining the style sheet to use).<\/p>\n SGML_XML<\/b><\/p>\n The metalanguage of the file to convert, either sgml or xml.<\/p>\n (This variable is valid only while determining the centralized catalog to use).<\/p>\n
DESCRIPTION<\/a>
VARIABLES<\/a>
FILES<\/a>
SEE ALSO<\/a>
AUTHORS<\/a> <\/p>\n
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DESCRIPTION <\/a> <\/h2>\n
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centralized-catalog<\/b><\/p>\nFILES <\/a> <\/h2>\n
SEE ALSO <\/a> <\/h2>\n