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.TH "BACKEND-SPEC" "7" "14 January 2022" "" ""

.SH NAME
backend-spec \- interface between jw and its backends
.SH "DESCRIPTION"
.PP
\fBjw\fR(1) calls backends like
\fIbackends/html\fR to do the "real" conversion
work. The backend gets all necessary data delivered
via environment variables ready to use.
.PP
This documentation describes those environment variables.
.PP
The backend is run in the directory where the output
files are to be created. It should return 0 if there weren't any problem,
and return a positive value otherwise.
.SH "VARIABLES"
.TP
\fB          SGML_FILE_NAME \fR
The bare name of the source file
.PP
.TP
\fB          SGML_FILE \fR
The full name and path of the source file
.PP
.TP
\fB          SGML_JADE \fR
The name of the parser (usually
\fBJade\fR or
\fBOpenJade\fR)
.PP
.TP
\fB          SGML_ARGUMENTS \fR
The full argument-string for
\fBJade\fR or
\fBOpenJade\fR
.PP
.TP
\fB          SGML_CATALOG_FILES \fR
The list of catalog files needed by
\fBJade\fR or
\fBOpenJade\fR
.PP
.TP
\fB          SGML_STYLESHEET \fR
The style sheet to use
.PP
.TP
\fB          SGML_BASE_DIR \fR
The base directory of the SGML system (default is
\fI/usr/share/sgml\fR)
.SH "FILES"
.PP
.SH "SEE ALSO"
.PP
\fBfrontend-spec\fR(7)
.SH "AUTHORS"
.PP
Jochem Huhmann <joh@revier.com>