This is the command stag-autoschemap that can be run in the OnWorks free hosting provider using one of our multiple free online workstations such as Ubuntu Online, Fedora Online, Windows online emulator or MAC OS online emulator
PROGRAM:
NAME
stag-autoschema - writes the implicit stag-schema for a stag file
SYNOPSIS
stag-autoschema -w sxpr sample-data.xml
stag-autoschema -dtd sample-data.xml
DESCRIPTION
Takes a stag compatible file (xml, sxpr, itext), or a file in any format plus a parser,
and writes out the implicit underlying stag-schema
stag-schema should look relatively self-explanatory.
Here is an example stag-schema, shown in sxpr syntax:
(db
(person*
(name "s"
(address+
(address_type "s")
(street "s")
(street2? "s")
(city "s")
(zip? "s")))))
The database db contains zero or more persons, each person has a mandatory name and at
least one address.
The cardinality mnemonics are as follows:
+ 1 or more
? 0 or one
* 0 or more
The default cardinality is 1
ARGUMENTS
-p|parser FORMAT
FORMAT is one of xml, sxpr or itext, or the name of a perl module
xml assumed as default
-dtd
exports schema as DTD
-w|writer FORMAT
FORMAT is one of xml, sxpr or itext, or the name of a perl module, OR DTD
The default is sxpr
note that stag schemas exported as xml will be invalid xml, due to the use of symbols
*, +, ? in the node names
LIMITATIONS
not event based - memory usage becomes exhorbitant on large files; prepare a small sample
beforehand
Use stag-autoschemap online using onworks.net services