Hi, I am at present using spirit for parsing unipen file as specified in http://www.unipen.org/dataformats.html . That is great and quite easy to parse, thanks to spirit. Now I am looking to use spirit for parsing an specific xml file ( w3c inkml file). So my intension is not to have a generic xml parser, rather than a specific xml parser (which also have some BNF grammar) . Anyone had used spirit for domain specific xml parsing? I believe using spirit will make it faster. Also I am interested to parse only a portion of the whole document at a time, and generate data from that portion only, rather generating data for whole DOM (The files are large, 4-20 MB typically) my xml file is something like, <page> <trace ref = "1"> 0,1,2,3,4,3,4,3,5,4,3,4 </trace> ... </page> note that inside <trace> the grammar is a BNF (comma sep float pairs mostly) Any comments, or snippets to show how to do it? -- Abir Basak, Member IEEE Software Engineer, Read Ink Technologies B. Tech, IIT Kharagpur email: abir@abirbasak.com homepage: www.abirbasak.com