1 
2 /* UTILS */
3 typedef struct List List;
4 typedef struct Strlist Strlist;
5 
6 /* List of integers (and also generic list with next pointer at beginning) */
7 struct List
8 {
9 	List*	next;
10 	int	val;
11 };
12 
13 struct Strlist
14 {
15 	Strlist*	next;
16 	Rune*	val;
17 };
18 
19 extern int		_inclass(Rune c, Rune* cl);
20 extern int		_listlen(List* l);
21 extern Rune*	_ltoStr(int n);
22 extern List*	_newlist(int val, List* rest);
23 extern Rune*	_newstr(int n);
24 extern int		_prefix(Rune* pre, Rune* s);
25 extern List*	_revlist(List* l);
26 extern void	_splitl(Rune* s, int n, Rune* cl, Rune** p1, int* n1, Rune** p2, int* n2);
27 extern void	_splitr(Rune* s, int n, Rune* cl, Rune** p1, int* n1, Rune** p2, int* n2);
28 extern int		_splitall(Rune* s, int n, Rune* cl, Rune** strarr, int* lenarr, int alen);
29 extern Rune*	_Stradd(Rune*s1, Rune* s2, int n);
30 extern Rune*	_Strclass(Rune* s, Rune* cl);
31 extern int		_Strcmp(Rune* s1, Rune* s2);
32 extern Rune*	_Strdup(Rune* s);
33 extern Rune*	_Strdup2(Rune* s, Rune* t);
34 extern int		_Streqn(Rune* s1, int n1, Rune* s2);
35 extern int		_Strlen(Rune* s);
36 extern Rune*	_Strnclass(Rune* s, Rune* cl, int n);
37 extern int		_Strncmpci(Rune* s1, int n1, Rune* s2);
38 extern Rune*	_Strndup(Rune* s, int n);
39 extern Rune*	_Strnrclass(Rune* s, Rune* cl, int n);
40 extern Rune*	_Strrclass(Rune* s, Rune* cl);
41 extern Rune*	_Strsubstr(Rune* s, int start, int stop);
42 extern long	_Strtol(Rune* s, Rune** eptr, int base);
43 extern void	_trimwhite(Rune* s, int n, Rune** pans, int* panslen);
44 
45 extern Rune	notwhitespace[];
46 extern Rune	whitespace[];
47 
48 /* STRINTTAB */
49 typedef struct StringInt StringInt;
50 
51 /* Element of String-Int table (used for keyword lookup) */
52 struct StringInt
53 {
54 	Rune*	key;
55 	int	val;
56 };
57 
58 extern int			_lookup(StringInt* t, int n, Rune* key, int keylen, int* pans);
59 extern StringInt*	_makestrinttab(Rune** a, int n);
60 extern Rune*		_revlookup(StringInt* t, int n, int val);
61 
62 /* Colors, in html format, not Plan 9 format.  (RGB values in bottom 3 bytes) */
63 enum {
64 	White = 0xFFFFFF,
65 	Black = 0x000000,
66 	Blue = 0x0000CC
67 };
68 
69 /* LEX */
70 
71 /* HTML 4.0 tags (plus blink, nobr) */
72 /* sorted in lexical order; used as array indices */
73 enum {
74 	Notfound,
75 	Comment,
76 	Ta, Tabbr, Tacronym, Taddress, Tapplet, Tarea,
77 	Tb, Tbase, Tbasefont, Tbdo, Tbig, Tblink,
78 	Tblockquote, Tbody, Tbq, Tbr, Tbutton,
79 	Tcaption, Tcenter, Tcite, Tcode, Tcol, Tcolgroup,
80 	Tdd, Tdel, Tdfn, Tdir, Tdiv, Tdl, Tdt,
81 	Tem,
82 	Tfieldset, Tfont, Tform, Tframe, Tframeset,
83 	Th1, Th2, Th3, Th4, Th5, Th6,
84 	Thead, Thr, Thtml,
85 	Ti, Tiframe, Timg, Tinput, Tins, Tisindex,
86 	Tkbd,
87 	Tlabel, Tlegend, Tli, Tlink,
88 	Tmap, Tmenu, Tmeta,
89 	Tnobr, Tnoframes, Tnoscript,
90 	Tobject, Tol, Toptgroup, Toption,
91 	Tp, Tparam, Tpre,
92 	Tq,
93 	Ts, Tsamp, Tscript, Tselect, Tsmall,
94 	Tspan, Tstrike, Tstrong, Tstyle, Tsub, Tsup,
95 	Ttable, Ttbody, Ttd, Ttextarea, Ttfoot,
96 	Tth, Tthead, Ttitle, Ttr, Ttt,
97 	Tu, Tul,
98 	Tvar,
99 	Numtags,
100 	RBRA = Numtags,
101 	Data = Numtags+RBRA
102 };
103 
104 /* HTML 4.0 tag attributes */
105 /* Keep sorted in lexical order */
106 enum {
107 	Aabbr, Aaccept_charset, Aaccess_key, Aaction,
108 	Aalign, Aalink, Aalt, Aarchive, Aaxis,
109 	Abackground, Abgcolor, Aborder,
110 	Acellpadding, Acellspacing, Achar, Acharoff,
111 	Acharset, Achecked, Acite, Aclass, Aclassid,
112 	Aclear, Acode, Acodebase, Acodetype, Acolor,
113 	Acols, Acolspan, Acompact, Acontent, Acoords,
114 	Adata, Adatetime, Adeclare, Adefer, Adir, Adisabled,
115 	Aenctype,
116 	Aface, Afor, Aframe, Aframeborder,
117 	Aheaders, Aheight, Ahref, Ahreflang, Ahspace, Ahttp_equiv,
118 	Aid, Aismap,
119 	Alabel, Alang, Alink, Alongdesc,
120 	Amarginheight, Amarginwidth, Amaxlength,
121 	Amedia, Amethod, Amultiple,
122 	Aname, Anohref, Anoresize, Anoshade, Anowrap,
123 	Aobject, Aonblur, Aonchange, Aonclick, Aondblclick,
124 	Aonfocus, Aonkeypress, Aonkeyup, Aonload,
125 	Aonmousedown, Aonmousemove, Aonmouseout,
126 	Aonmouseover, Aonmouseup, Aonreset, Aonselect,
127 	Aonsubmit, Aonunload,
128 	Aprofile, Aprompt,
129 	Areadonly, Arel, Arev, Arows, Arowspan, Arules,
130 	Ascheme, Ascope, Ascrolling, Aselected, Ashape,
131 	Asize, Aspan, Asrc, Astandby, Astart, Astyle, Asummary,
132 	Atabindex, Atarget, Atext, Atitle, Atype,
133 	Ausemap,
134 	Avalign, Avalue, Avaluetype, Aversion, Avlink, Avspace,
135 	Awidth,
136 	Numattrs
137 };
138 
139 struct Attr
140 {
141 	Attr*		next;		/* in list of attrs for a token */
142 	int		attid;		/* Aabbr, etc. */
143 	Rune*	value;
144 };
145 
146 struct Token
147 {
148 	int		tag;		/* Ta, etc */
149 	Rune*	text;		/* text in Data, attribute text in tag */
150 	Attr*		attr;		/* list of Attrs */
151 	int		starti;	/* index into source buffer of token start */
152 };
153 
154 extern Rune**	tagnames;
155 extern Rune**	attrnames;
156 
157 extern void	_freetokens(Token* tarray, int n);
158 extern Token*	_gettoks(uchar* data, int datalen, int chset, int mtype, int* plen);
159 extern int		_tokaval(Token* t, int attid, Rune** pans, int xfer);
160 
161 /* #pragma varargck	type "T"	Token* */
162 
163 #include "runetab.h"