'''[https://core.tcl.tk/tcllib/doc/trunk/embedded/www/tcllib/files/modules/pt/pt_introduction.html%|%Parser Tools]''', a component of [Tcllib], is an evolutionary improvement over [grammar::peg], and has the beginnings of very nice documentation. ** Documentation ** [https://core.tcl.tk/tcllib/doc/trunk/embedded/www/tcllib/files/modules/pt/pt_introduction.html%|%official reference]: [https://core.tcl.tk/tcllib/doc/trunk/embedded/www/tcllib/files/modules/pt/pt_peg_container.html%|%official reference for pt::peg::container]: a component of ParseTools, with a more modern API intended to supersede grammar::peg [https://core.tcl.tk/tcllib/doc/trunk/embedded/www/tcllib/files/modules/pt/pt_peg_interp.html%|%official reference for pt::peg::interp]: a companion to pt::peg::container ** See Also ** [Parsing Excel XLSX]: [jbr] 2011-02-14: a working example in an actual application [Playing ISBL]: [jbr] 2011-04-01: Another working example in an actual application: [PEG Example], by [dkf]: <> Package | Parsing | Tcllib