ref: 38c0cf0737de03906729054ad7b7b011dd1ca475
dir: /appl/charon/lex.m/
Lex: module { PATH: con "/dis/charon/lex.dis"; # HTML 4.0 tags (blink, nobr) # sorted in lexical order; used as array indices Notfound, Comment, Ta, Tabbr, Tacronym, Taddress, Tapplet, Tarea, Tb, Tbase, Tbasefont, Tbdo, Tbig, Tblink, Tblockquote, Tbody, Tbq, Tbr, Tbutton, Tcaption, Tcenter, Tcite, Tcode, Tcol, Tcolgroup, Tdd, Tdel, Tdfn, Tdir, Tdiv, Tdl, Tdt, Tem, Tfieldset, Tfont, Tform, Tframe, Tframeset, Th1, Th2, Th3, Th4, Th5, Th6, Thead, Thr, Thtml, Ti, Tiframe, Timage, Timg, Tinput, Tins, Tisindex, Tkbd, Tlabel, Tlegend, Tli, Tlink, Tmap, Tmenu, Tmeta, Tnobr, Tnoframes, Tnoscript, Tobject, Tol, Toptgroup, Toption, Tp, Tparam, Tpre, Tq, Ts, Tsamp, Tscript, Tselect, Tsmall, Tspan, Tstrike, Tstrong, Tstyle, Tsub, Tsup, Ttable, Ttbody, Ttd, Ttextarea, Ttfoot, Tth, Tthead, Ttitle, Ttr, Ttt, Tu, Tul, Tvar, Txmp, Numtags : con iota; RBRA : con Numtags; Data: con Numtags+RBRA; tagnames: array of string; # HTML 4.0 tag attributes # Keep sorted in lexical order Aabbr, Aaccept, Aaccept_charset, Aaccesskey, Aaction, Aalign, Aalink, Aalt, Aarchive, Aaxis, Abackground, Abgcolor, Aborder, Acellpadding, Acellspacing, Achar, Acharoff, Acharset, Achecked, Acite, Aclass, Aclassid, Aclear, Acode, Acodebase, Acodetype, Acolor, Acols, Acolspan, Acompact, Acontent, Acoords, Adata, Adatafld, Adataformatas, Adatapagesize, Adatasrc, Adatetime, Adeclare, Adefer, Adir, Adisabled, Aenctype, Aevent, Aface, Afor, Aframe, Aframeborder, Aheaders, Aheight, Ahref, Ahreflang, Ahspace, Ahttp_equiv, Aid, Aismap, Alabel, Alang, Alanguage, Alink, Alongdesc, Alowsrc, Amarginheight, Amarginwidth, Amaxlength, Amedia, Amethod, Amultiple, Aname, Anohref, Anoresize, Anoshade, Anowrap, Aobject, Aonabort, Aonblur, Aonchange, Aonclick, Aondblclick, Aonerror, Aonfocus, Aonkeydown, Aonkeypress, Aonkeyup, Aonload, Aonmousedown, Aonmousemove, Aonmouseout, Aonmouseover, Aonmouseup, Aonreset, Aonresize, Aonselect, Aonsubmit, Aonunload, Aprofile, Aprompt, Areadonly, Arel, Arev, Arows, Arowspan, Arules, Ascheme, Ascope, Ascrolling, Aselected, Ashape, Asize, Aspan, Asrc, Astandby, Astart, Astyle, Asummary, Atabindex, Atarget, Atext, Atitle, Atype, Ausemap, Avalign, Avalue, Avaluetype, Aversion, Avlink, Avspace, Awidth, Numattrs : con iota; attrnames: array of string; Token: adt { tag: int; text: string; # text in Data, attribute text in tag attr: list of Attr; aval: fn(t: self ref Token, attid: int) : (int, string); tostring: fn(t: self ref Token) : string; }; Attr: adt { attid: int; value: string; }; # A source of HTML tokens. # After calling new with a ByteSource (which is past 'gethdr' stage), # call gettoks repeatedly until get nil. Errors are signalled by exceptions. # Possible exceptions raised: # EXInternal (start, gettoks) # exGeterror (gettoks) # exAbort (gettoks) TokenSource: adt { b: ref CharonUtils->ByteSource; chset: Btos; # charset converter state : ref TSstate; mtype: int; # CU->TextHtml or CU->TextPlain inxmp: int; new: fn(b: ref CharonUtils->ByteSource, chset : Btos, mtype: int) : ref TokenSource; gettoks: fn(ts: self ref TokenSource) : array of ref Token; setchset: fn(ts: self ref TokenSource, conv : Btos); }; TSstate : adt { bi : int; prevbi : int; s : string; si : int; csstate : Convcs->State; prevcsstate : Convcs->State; }; init: fn(cu: CharonUtils); };