Man page - trang(1)

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Manual

trang

NAME
SYNOPSIS
DESCRIPTION
OPTIONS
SEE ALSO
AUTHOR

NAME

trang - convert between different schema languages for XML

SYNOPSIS

trang [ -I rng | rnc | dtd | xml ] [ -O rng | rnc | dtd | xsd ] [ -i input-param ] [ -o output-param ] input-file ... output-file

DESCRIPTION

trang takes as input a schema written in any of the following formats:

RELAX NG (XML syntax)

RELAX NG (compact syntax)

XML 1.0 DTD

and produces as output a schema written in any of the following formats:

RELAX NG (XML syntax)

RELAX NG (compact syntax)

XML 1.0 DTD

W3C XML Schema

Trang can also infer a schema from one or more example XML documents.

Trang uses an internal representation based on RELAX NG. For each supported input format, there is an input module that converts a schema in that input format into this internal representation. For each supported output format, there is an output module that converts the internal representation into a schema in that output format. Thus, any supported input format can be translated to any supported output format.

Trang requires two command-line arguments: the first is the URI or filename of the schema to be translated; the second is the output filename.

Trang infers the input and output modules to be used from the extension of input and output filenames as follows:

	.rng		RELAX NG (XML syntax)
	.rnc		RELAX NG (compact syntax)
	.dtd		XML 1.0 DTD
	.xsd		W3C XML Schema
	.xml		XML documents (used as examples from which to infer a schema)

This inference can be overridden using the -I and -O options.

When the input is XML documents used as examples to infer a schema, more than one input file may be specified as arguments. All the input files are specified before the output file.

OPTIONS

-I rng | rnc | dtd | xml

Specifies which input module to use.

-O rng | rnc | dtd | xsd

Specifies which output module to use.

-i input-param
-o output-param

Specifies a parameter for an input ( -i ) or output ( -o ) module. The -i and -o options may be used multiple times in order to specify multiple parameters. There are two kinds of parameter: boolean parameters and string-valued parameters. A string-valued parameter is specified using the form name = value . A boolean parameter is specified using the form name or no- name . The applicable parameters depend on the particular input and output module. For details, see the HTML documentation.

AUTHOR

James Clark (jjc@jclark.com)

This product includes software developed by the Apache Software Foundation (http://www.apache.org/).