WordPress.org

1. Upload the CPT_XslProcessor folder to the '/wp-content/plugins/' directory. It should include 'processor.php', 'example.xml', 'example.xsl'
2. Activate the plugin through the 'Plugins' menu in WordPress

usage:

[XmlProcessor xml="xml_filepath" xslt="xslt_filepath"]

    xml_filepath and xslt_filepath is relative to wordpress root directory

[XmlProcessor filepath]

    filepath stands for both filenames (.xml and .xsl) without the file extension and relative to wordpress root directory

[XmlProcessor filepath params="key|key=value|ns=key=value"]

[XmlProcessor xml="filepath.xml" xslt="filepath.xsl" params="key|key=value|ns=key=value"]

    params stands for the parameters that need to be passed to the xsl document. 
    * If only 1 value is present, it is considered a key and it replaces said key by a blank.
    * If 2 values are present, it is considered a key / value pair, and the key is replaced by the value.
    * If 3 values are present, it is considered a ns / key / value set, and replaces accordingly
    You may have more than one parameter set. In this case, each set needs to be separated by a |

[XmlProcessor filepath get="key|key=value|ns=key=value"]

[XmlProcessor filepath post="key|key=value|ns=key=value"]

[XmlProcessor filepath get="key|key=value|ns=key=value" post="key|key=value|ns=key=value"]

    get / post stands for the parameters that need to be passed to the xsl document but are taken from the HTML methods
    * If only one value is present, it is considered a key and it replaces said key with the value in the get or post variables
    * If two values are present, it is considered a key / value pair. key represents the XSL parameter, value, the value to retrieve from the $_GET or $_POST variables
    * If three values are present, it is considered a ns / key / value set, and replaces accordingly
    You may have more than one parameter set. In this case, each set needs to be separated by a |

examples without parameters:

[XmlProcessor wp-content/plugins/CPT_XslProcessor/example]

[XmlProcessor xml="wp-content/plugins/CPT_XslProcessor/example.xml" xslt="wp-content/plugins/CPT_XslProcessor/example.xsl"]

    Both Examples work the same, they will process example.xml and example.xsl located in the wordpress plugin directory.   

examples with parameters:

[XmlProcessor wp-content/plugins/CPT_XslProcessor/example params="default_param=this is the replaced default parameter"]

[XmlProcessor xml="wp-content/plugins/CPT_XslProcessor/example.xml" xslt="wp-content/plugins/CPT_XslProcessor/example.xsl" params="default_param=this is the replaced default parameter"]

    Both Examples work the same, they will process example.xml and example.xsl located in the wordpress plugin directory and also   replace the parameters in the xsl document