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<html>
<head>
<title>Stag Script Index</title>
<link rel="stylesheet" type="text/css" href="./stylesheet.css">
</link>
</head>
<body>
<h1>Stag Scripts</h1>
<div class="intro">
<p>These scripts come with the stag and dbstag distributions</p>
</div>
<h2>Data::Stag Script List</h2>
<hr></hr>
<h3>
<a href="script-docs/stag-autoschema.html">stag-autoschema.pl</a>
</h3>
<div class="summary">writes the implicit stag-schema for a stag file</div>
<div class="codeblock">
<pre>
stag-autoschema.pl -w sxpr sample-data.xml</pre>
</div>
<div class="scriptdesc">
<pre>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:</pre>
</div>
<hr></hr>
<h3>
<a href="script-docs/stag-db.html">stag-db.pl</a>
</h3>
<div class="summary">persistent storage and retrieval for stag data (xml, sxpr, itext)</div>
<div class="codeblock">
<pre>
stag-db.pl -r person -k social_security_no -i ./person-idx myrecords.xml
stag-db.pl -i ./person-idx -q 999-9999-9999 -q 888-8888-8888</pre>
</div>
<div class="scriptdesc">
<pre>Builds a simple file-based database for persistent storage and
retrieval of nodes from a stag compatible document.
Imagine you have a very large file of data, in a stag compatible
format such as XML. You want to index all the elements of type
B<person>; each person can be uniquely identified by
B<social_security_no>, which is a direct subnode of B<person>
The first thing to do is to build an index file, which will be stored
in your current directory:
stag-db.pl -r person -k social_security_no -i ./person-idx myrecords.xml
You can then use the index "person-idx" to retrieve B<person> nodes by
their social security number
stag-db.pl -i ./person-idx -q 999-9999-9999 > some-person.xml
You can export using different stag formats
stag-db.pl -i ./person-idx -q 999-9999-9999 -w sxpr > some-person.xml
You can retrieve multiple nodes (although these need to be rooted to
make a valid file)
stag-db.pl -i ./person-idx -q 999-9999-9999 -q 888-8888-8888 -top personset
Or you can use a list of IDs from a file (newline delimited)
stag-db.pl -i ./person-idx -qf my_ss_nmbrs.txt -top personset</pre>
</div>
<hr></hr>
<h3>
<a href="script-docs/stag-diff.html">stag-diff.pl</a>
</h3>
<div class="summary">finds the difference between two stag files</div>
<div class="codeblock">
<pre>
stag-diff.pl -ignore foo-id -ignore bar-id file1.xml file2.xml</pre>
</div>
<div class="scriptdesc">
<pre>Compares two data trees and reports whether they match. If they do not
match, the mismatch is reported.</pre>
</div>
<hr></hr>
<h3>
<a href="script-docs/stag-drawtree.html">stag-drawtree.pl</a>
</h3>
<div class="summary">draws a stag file (xml, itext, sxpr) as a PNG diagram</div>
<div class="codeblock">
<pre>
stag-drawtree.pl -o my.png myfile.xml
stag-drawtree.pl -p My::MyFormatParser -o my.png myfile.myfmt</pre>
</div>
<div class="scriptdesc">
<pre>requires GD library and GD perl module</pre>
</div>
<hr></hr>
<h3>
<a href="script-docs/stag-eval.html">stag-eval.pl</a>
</h3>
<div class="summary"></div>
<div class="codeblock">
<pre>
stag-eval.pl '' file2.xml</pre>
</div>
<div class="scriptdesc">
<pre></pre>
</div>
<hr></hr>
<h3>
<a href="script-docs/stag-filter.html">stag-filter.pl</a>
</h3>
<div class="summary">filters a stag file (xml, itext, sxpr) for nodes of interest</div>
<div class="codeblock">
<pre>
stag-filter.pl person -q name=fred file1.xml
stag-filter.pl person 'sub {shift->get_name =~ /^A*/}' file1.xml
stag-filter.pl -p My::Foo -w sxpr record 'sub{..}' file2</pre>
</div>
<div class="scriptdesc">
<pre>parsers an input file using the specified parser (which may be a built
in stag parser, such as xml) and filters the resulting stag tree
according to a user-supplied subroutine, writing out only the
nodes/elements that pass the test.
the parser is event based, so it should be able to handle large files
(although if the node you parse is large, it will take up more memory)</pre>
</div>
<hr></hr>
<h3>
<a href="script-docs/stag-findsubtree.html">stag-findsubtree.pl</a>
</h3>
<div class="summary">finds nodes in a stag file</div>
<div class="codeblock">
<pre>
stag-findsubtree.pl 'person/name' file.xml</pre>
</div>
<div class="scriptdesc">
<pre>parses in an input file and writes out subnodes</pre>
</div>
<hr></hr>
<h3>
<a href="script-docs/stag-flatten.html">stag-flatten.pl</a>
</h3>
<div class="summary">turns stag data into a flat table</div>
<div class="codeblock">
<pre>
stag-flatten.pl MyFile.xml dept/name dept/person/name</pre>
</div>
<div class="scriptdesc">
<pre>reads in a file in a stag format, and 'flattens' it to a tab-delimited
table format. given this data:
(company
(dept
(name "special-operations")
(person
(name "james-bond"))
(person
(name "fred"))))
the above command will return a two column table
special-operations james-bond
special-operations fred</pre>
</div>
<hr></hr>
<h3>
<a href="script-docs/stag-grep.html">stag-grep.pl</a>
</h3>
<div class="summary">filters a stag file (xml, itext, sxpr) for nodes of interest</div>
<div class="codeblock">
<pre>
stag-grep.pl person -q name=fred file1.xml
stag-grep.pl person 'sub {shift->get_name =~ /^A*/}' file1.xml
stag-grep.pl -p My::Foo -w sxpr record 'sub{..}' file2</pre>
</div>
<div class="scriptdesc">
<pre>parsers an input file using the specified parser (which may be a built
in stag parser, such as xml) and filters the resulting stag tree
according to a user-supplied subroutine, writing out only the
nodes/elements that pass the test.
the parser is event based, so it should be able to handle large files
(although if the node you parse is large, it will take up more memory)</pre>
</div>
<hr></hr>
<h3>
<a href="script-docs/stag-handle.html">stag-handle.pl</a>
</h3>
<div class="summary">streams a stag file through a handler into a writer</div>
<div class="codeblock">
<pre>
stag-handle.pl -w itext -c my-handler.pl myfile.xml > processed.itext
stag-handle.pl -w itext -p My::Parser -m My::Handler myfile.xml > processed.itext</pre>
</div>
<div class="scriptdesc">
<pre>will take a Stag compatible format (xml, sxpr or itext), turn the data
into an event stream passing it through my-handler.pl</pre>
</div>
<hr></hr>
<h3>
<a href="script-docs/stag-join.html">stag-join.pl</a>
</h3>
<div class="summary">joins two stag files together based around common key</div>
<div class="codeblock">
<pre>
stag-join.pl -w xml country/city_id=capital/capital_id countries.xml capitals.xml
stag-join.pl -w itext gene/tax_id=species/tax_id genedb.itext speciesdb.itext</pre>
</div>
<div class="scriptdesc">
<pre>Performs a relational-style INNER JOIN between two stag trees; this
effectively merges two files together, based on some kind of ID in the
file</pre>
</div>
<hr></hr>
<h3>
<a href="script-docs/stag-merge.html">stag-merge.pl</a>
</h3>
<div class="summary"></div>
<div class="codeblock">
<pre>
stag-merge.pl -xml file1.xml file2.xml</pre>
</div>
<div class="scriptdesc">
<pre>script wrapper for the Data::Stag modules</pre>
</div>
<hr></hr>
<h3>
<a href="script-docs/stag-mogrify.html">stag-mogrify.pl </a>
</h3>
<div class="summary">mangle stag files</div>
<div class="codeblock">
<pre>
stag-mogrify.pl -w itext file1.xml file2.xml</pre>
</div>
<div class="scriptdesc">
<pre>script wrapper for the Data::Stag modules
feeds in files into a parser object that generates nestarray events,
and feeds the events into a handler/writer class</pre>
</div>
<hr></hr>
<h3>
<a href="script-docs/stag-parse.html">stag-parse.pl</a>
</h3>
<div class="summary">parses a file and fires events (e.g. sxpr to xml)</div>
<div class="codeblock">
<pre>
# convert XML to IText
stag-parse.pl -p xml -w itext file1.xml file2.xml
# use a custom parser/generator and a custom writer/generator
stag-parse.pl -p MyMod::MyParser -w MyMod::MyWriter file.txt</pre>
</div>
<div class="scriptdesc">
<pre>script wrapper for the Data::Stag modules
feeds in files into a parser object that generates nestarray events,
and feeds the events into a handler/writer class</pre>
</div>
<hr></hr>
<h3>
<a href="script-docs/stag-query.html">stag-query.pl</a>
</h3>
<div class="summary">aggregare queries</div>
<div class="codeblock">
<pre>
stag-query.pl avg person/age file.xml
stag-query.pl sum person/salary file.xml
stag-query.pl 'sub { $agg .= ", ".shift }' person/name file.xml</pre>
</div>
<div class="scriptdesc">
<pre>Performs aggregate queries</pre>
</div>
<hr></hr>
<h3>
<a href="script-docs/stag-splitter.html">stag-splitter.pl</a>
</h3>
<div class="summary">splits a stag file into multiple files</div>
<div class="codeblock">
<pre>
stag-splitter.pl -split person -name social_security_no file.xml</pre>
</div>
<div class="scriptdesc">
<pre>Splits a file using a user specified parser (default xml) around a
specified split node, naming each file according to the name argument
the files will be named anonymously, unless the '-name' switch is specified; this will use the value of the specified element as the filename
eg; if we have
<top>
<a>
<b>foo</b>
<c>yah</c>
<d>
<e>xxx</e>
</d>
</a>
<a>
<b>bar</b>
<d>
<e>wibble</e>
</d>
</a>
</top>
if we run
stag-splitter.pl -split a -name b
it will generate two files, "foo.xml" and "bar.xml"
input format can be 'xml', 'sxpr' or 'itext' - if this is left blank
the format will be guessed from the file suffix
the output format defaults to the same as the input format, but
another can be chosen.
files go in the current directory, but this can be overridden with the
'-dir' switch</pre>
</div>
<hr></hr>
<h3>
<a href="script-docs/stag-view.html">stag-view.pl</a>
</h3>
<div class="summary">draws an expandable Tk tree diagram showing stag data</div>
<div class="codeblock">
<pre>
stag-view.pl file1.xml</pre>
</div>
<div class="scriptdesc">
<pre>Draws a Tk tree, with expandable/convertable nodes</pre>
</div>
<h2>DBIx::DBStag Script List</h2>
<hr></hr>
<h3>
<a href="script-docs/selectall_html.html">selectall_html.pl</a>
</h3>
<div class="summary"></div>
<div class="codeblock">
<pre>
selectall_html.pl -d "dbi:Pg:dbname=mydb;host=localhost" "SELECT * FROM a NATURAL JOIN b"</pre>
</div>
<div class="scriptdesc">
<pre></pre>
</div>
<hr></hr>
<h3>
<a href="script-docs/selectall_xml.html">selectall_xml.pl</a>
</h3>
<div class="summary"></div>
<div class="codeblock">
<pre>
selectall_xml.pl [-d <dbi>] [-f file of sql] [-nesting|n <nesting>] SQL</pre>
</div>
<div class="scriptdesc">
<pre>This script will query a database using either SQL provided by the
script user, or using an SQL templates; the query results will be
turned into XML using the L<DBIx::DBStag> module. The nesting of the
XML can be controlled by the DBStag SQL extension "USE NESTING..."</pre>
</div>
<hr></hr>
<h3>
<a href="script-docs/stag-autoddl.html">stag-autoddl.pl</a>
</h3>
<div class="summary"></div>
<div class="codeblock">
<pre>
stag-autoddl.pl -parser XMLAutoddl -handler ITextWriter file1.txt file2.txt
stag-autoddl.pl -parser MyMod::MyParser -handler MyMod::MyWriter file.txt</pre>
</div>
<div class="scriptdesc">
<pre>script wrapper for the Data::Stag modules</pre>
</div>
<hr></hr>
<h3>
<a href="script-docs/stag-bulkload.html">stag-bulkload.pl</a>
</h3>
<div class="summary">creates bulkload SQL for input data</div>
<div class="codeblock">
<pre>
# convert XML to IText
stag-bulkload.pl -l person file1.xml file2.xml
# use a custom parser/generator and a custom writer/generator
stag-bulkload.pl -p MyMod::MyParser file.txt</pre>
</div>
<div class="scriptdesc">
<pre>Creates bulkload SQL statements for an input file
Works only with certain kinds of schemas, where the FK relations make
a tree (not a graph); i.e. the only FKs are to the parent
You do not need a connection to the DB
It is of no use for incremental loading - it assumes integer surrogate
promary keys and starts these from 1</pre>
</div>
<hr></hr>
<h3>
<a href="script-docs/stag-ir.html">stag-ir.pl</a>
</h3>
<div class="summary">information retrieval using a simple relational index</div>
<div class="codeblock">
<pre>
stag-ir.pl -r person -k social_security_no -d Pg:mydb myrecords.xml
stag-ir.pl -d Pg:mydb -q 999-9999-9999 -q 888-8888-8888</pre>
</div>
<div class="scriptdesc">
<pre>Indexes stag nodes (XML Elements) in a simple relational db structure
- keyed by ID with an XML Blob as a value
Imagine you have a very large file of data, in a stag compatible
format such as XML. You want to index all the elements of type
B<person>; each person can be uniquely identified by
B<social_security_no>, which is a direct subnode of B<person>
The first thing to do is to build the index file, which will be stored
in the database mydb
stag-ir.pl -r person -k social_security_no -d Pg:mydb myrecords.xml
You can then use the index "person-idx" to retrieve B<person> nodes by
their social security number
stag-ir.pl -d Pg:mydb -q 999-9999-9999 > some-person.xml
You can export using different stag formats
stag-ir.pl -d Pg:mydb -q 999-9999-9999 -w sxpr > some-person.xml
You can retrieve multiple nodes (although these need to be rooted to
make a valid file)
stag-ir.pl -d Pg:mydb -q 999-9999-9999 -q 888-8888-8888 -top personset
Or you can use a list of IDs from a file (newline delimited)
stag-ir.pl -d Pg:mydb -qf my_ss_nmbrs.txt -top personset</pre>
</div>
<hr></hr>
<h3>
<a href="script-docs/stag-pgslurp.html">stag-pgslurp.pl</a>
</h3>
<div class="summary"></div>
<div class="codeblock">
<pre>
stag-pgslurp.pl -d "dbi:Pg:dbname=mydb;host=localhost" myfile.xml</pre>
</div>
<div class="scriptdesc">
<pre>This script is for storing data (specified in a nested file format
such as XML or S-Expressions) in a database. It assumes a database
schema corresponding to the tags in the input data already exists.</pre>
</div>
<hr></hr>
<h3>
<a href="script-docs/stag-sl2sql.html">stag-sl2sql.pl</a>
</h3>
<div class="summary"></div>
<div class="codeblock">
<pre></pre>
</div>
<div class="scriptdesc">
<pre></pre>
</div>
<hr></hr>
<h3>
<a href="script-docs/stag-storenode.html">stag-storenode.pl</a>
</h3>
<div class="summary"></div>
<div class="codeblock">
<pre>
stag-storenode.pl -d "dbi:Pg:dbname=mydb;host=localhost" myfile.xml</pre>
</div>
<div class="scriptdesc">
<pre>This script is for storing data (specified in a nested file format
such as XML or S-Expressions) in a database. It assumes a database
schema corresponding to the tags in the input data already exists.</pre>
</div>
</body>
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