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XQL has already been implemented in web browsers , document repositories , XML middleware , Perl libraries , and command-line utilities . Thus , very clearly , XML , the tool , can be used both wisely and unwisely . You can now perform data loading ( loadVariables , XML , XMLSocket , runtime shared libraries , Macromedia Flash Remoting ) from outside a movie 's own domain as long as the server providing the data provides a policy file — a small XML file that grants cross-domain loading permissions . For example , there are many different means of document encoding ( ODA , XML , plain text ) and information retrieval techniques ( keyword , full-text boolean , similarity , probabilistic , and so on ) . Moreover Manager provides a full list of integration options , including JavaScript , XML , RSS and more . The intention is to support applications as varied as web services , XML messaging , and Web browsers on mobile devices . Additionally , we will investigate novel indexing data structures and algorithms for structured and semi-structured documents ( HTML , XML , TEI ) with experiments on real tagged data : WEB pages and literary documents . It also packages industry standard services , such as web , SNMP , XML parsing , XSLT processing , logging , email , etc , used by CiscoWorks applications . It includes hundreds of modules that extend Perl in every imaginable direction : networking , directory services , XML processing , statistics , you name it .