stag-diff(1p) [debian man page]

STAG-DIFF(1p)						User Contributed Perl Documentation					     STAG-DIFF(1p)

NAME

       stag-diff - finds the difference between two stag files

SYNOPSIS

	 stag-diff -ignore foo-id -ignore bar-id file1.xml file2.xml

DESCRIPTION

       Compares two data trees and reports whether they match. If they do not match, the mismatch is reported.

   ARGUMENTS
       -help|h
	   shows this document

       -ignore|i ELEMENT
	   these nodes are ignored for the purposes of comparison. Note that attributes are treated as elements, prefixed by the containing
	   element id. For example, if you have

	     <foo ID="wibble">

	   And you wish to ignore the ID attribute, then you would use the switch

	     -ignore foo-ID

	   You can specify multiple elements to ignore like this

	     -i foo -i bar -i baz

	   You can also specify paths

	     -i foo/bar/bar-id

       -parser|p FORMAT
	   which parser to use. The default is XML. This can also be autodetected by the file suffix. Other alternatives are sxpr and itext. See
	   Data::Stag for details.

       -report|r ELEMENT
	   report mismatches as they occur on each element of type ELEMENT

	   multiple elements can be specified

       -verbose|v
	   used in conjunction with the -report switch

	   shows the tree of the mismatching element

   OUTPUT
       If a mismatch is reported, a report is generated displaying the subpart of the tree that could not be matched. This will look like this:

       REASON: no_matching_node: annotation
	 no_matching_node: feature_set
	   no_matching_node: feature_span
	     no_matching_node: evidence
	       no_matching_node: evidence-id
		 data_mismatch(:15077290 ne :15077291): evidence-id AND evidence-id

       Due to the nature of tree matching, it can be difficult to specify exactly how trees do not match. To investigate this, you may need to use
       the -r and -v options. For the above output, I would recommend using

	 stag-diff -r feature_span -v

   ALGORITHM
       Both trees are recursively traversed... see the actual code for how this works

       The order of elements is not important; eg

	 <foo>
	   <bar>
	     <baz>1</baz>
	   </bar>
	   <bar>
	     <baz>2</baz>
	   </bar>
	 </foo>

       matches

	 <foo>
	   <bar>
	     <baz>2</baz>
	   </bar>
	   <bar>
	     <baz>1</baz>
	   </bar>
	 </foo>

       The recursive nature of this algorithm means that certain tree comparisons will explode wrt time and memory. I think this will only happen
       with very deep trees where nodes high up in the tree can only be differentiated by nodes low down in the tree.

       Both trees are loaded into memory to begin with, so it may thrash with very large documents

   AUTHOR
       Chris Mungall cjm at fruitfly dot org

SEE ALSO

       Data::Stag

perl v5.10.0							    2008-12-23							     STAG-DIFF(1p)

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STAG-SPLITTER(1p)					User Contributed Perl Documentation					 STAG-SPLITTER(1p)

NAME

       stag-splitter - splits a stag file into multiple files

SYNOPSIS

	 stag-splitter -split person -name social_security_no file.xml

DESCRIPTION

       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 -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

USAGE

	  stag-splitter [-split <ELEMENT-NAME>] [-name <ELEMENT-NAME>] [-dir <DIR>] [-format <INPUT-FORMAT>] [-outformat <OUTPUT-FORMAT>] <FILENAMES>

       -p|parser FORMAT
	   FORMAT is one of xml, sxpr or itext, or the name of a perl module

	   xml assumed as default

       -w|writer FORMAT
	   FORMAT is one of xml, sxpr or itext, or the name of a perl module

       -split|s NODE
	   node to split on

       -name|n NODE
	   field/element to use when naming files

	   will use surrogate IDs if this argument not specified

       -dir|d DIR
	   write files to this directory

perl v5.10.0							    2008-12-23							 STAG-SPLITTER(1p)

Linux and UNIX Man Pages

stag-diff(1p) [debian man page]

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