1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/layout/doc/obsolete/nav4-html.html Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,902 @@
1.4 +<!-- This Source Code Form is subject to the terms of the Mozilla Public
1.5 + - License, v. 2.0. If a copy of the MPL was not distributed with this
1.6 + - file, You can obtain one at http://mozilla.org/MPL/2.0/. -->
1.7 +
1.8 +<HTML>
1.9 +<HEAD>
1.10 + <META HTTP-EQUIV="Content-Type" CONTENT="text/html; charset=iso-8859-1">
1.11 + <META NAME="Author" CONTENT="Kipp E.B. HIckman">
1.12 + <META NAME="GENERATOR" CONTENT="Mozilla/4.03 [en] (WinNT; I) [Netscape]">
1.13 + <TITLE>HTML</TITLE>
1.14 + <BASE HREF="file:///s|/ns/xena/htmlpars/testhtml/">
1.15 +</HEAD>
1.16 +<BODY TEXT="#000000" BGCOLOR="#FFFFFF" LINK="#FF0000" VLINK="#800080" ALINK="#0000FF">
1.17 +
1.18 +<H2>
1.19 +HTML</H2>
1.20 +This documents describes the complete handling of HTML in magellan. The
1.21 +document covers the parsing process - how HTML is lexically analysized
1.22 +and then interprted. After the parsing process is discussed we give a detailed
1.23 +analysis of each HTML tag and the attributes that are supported, the values
1.24 +for the attributes and how the tag is treated by magellan.
1.25 +<H2>
1.26 +Parsing</H2>
1.27 +HTML is tokenized by an HTML scanner. The scanner is fed unicode data to
1.28 +parse. Stream converters are used to translate from various encodings to
1.29 +unicode. The scanner separates the input stream into tokens which consist
1.30 +of:
1.31 +<UL>
1.32 +<LI>
1.33 +text</LI>
1.34 +
1.35 +<LI>
1.36 +tags</LI>
1.37 +
1.38 +<LI>
1.39 +entities</LI>
1.40 +
1.41 +<LI>
1.42 +script-entities</LI>
1.43 +
1.44 +<LI>
1.45 +comments</LI>
1.46 +
1.47 +<LI>
1.48 +conditional comments</LI>
1.49 +</UL>
1.50 +The HTML parsing engine uses the HTML scanner for lexical anlaysis. The
1.51 +parsing engine operates by attacking the input stream in a set of well
1.52 +defined steps:
1.53 +<UL>
1.54 +<LI>
1.55 +The parser processes the head portion of the document first, without emitting
1.56 +any output. This is done to discover a few special features of html:</LI>
1.57 +
1.58 +<UL>
1.59 +<LI>
1.60 +The parser processes META tags looking for META TARGET</LI>
1.61 +
1.62 +<LI>
1.63 +The parser processes META tags looking for META tags which affect the character
1.64 +set. Nav4 handles the very first character set defining meta tag (all others
1.65 +are ignored) by reloading the document with the proper character conversion
1.66 +module inserted into the stream pipeline.</LI>
1.67 +</UL>
1.68 +
1.69 +<LI>
1.70 +After the head portion is processed the parser then proceeds to process
1.71 +the body of the document</LI>
1.72 +</UL>
1.73 +
1.74 +<H3>
1.75 +Tag Processing</H3>
1.76 +Tags are processed by the parser by locating a <B>"tag handler"</B> for
1.77 +the tag. The HTML parser serves as the tag handler for all of the builtin
1.78 +tags documented below. Tag attribute handling is done during translation
1.79 +of tags into content. This mapping translates the tag attributes into content
1.80 +data and into style data. The translation to style data is documented below
1.81 +by indicating the mapping from tag attributes to their CSS1 (plus extensions)
1.82 +equivalents.
1.83 +<H3>
1.84 +Special Hacks</H3>
1.85 +The following list describes hacks added to the magellan parsing engine
1.86 +to deal with navigator compatibility. These are just the parser hacks,
1.87 +not the layout or presentation hacks. Most hacks are intriduced for HTML
1.88 +syntax error recovering. HTML doesn't specify much how to handle those
1.89 +error conditions. Netscape has made big effort to render pages with non-prefect
1.90 +HTML. For many reasons, new browsers need to keep compatible in thsi area.
1.91 +<UL>
1.92 +<LI>
1.93 +Entities can be used as escape in quoted string. For value string in name-value
1.94 +pair, see <A HREF="../testhtml/quote001.html">compatibility test
1.95 +quote001.html</A>. Test line 70 shows that an entity quote at the begining
1.96 +means the value is NOT quoted. Test line 90 shows that if the value is
1.97 +started with a quote, then an entity quote does NOT terminate the value
1.98 +string.</LI>
1.99 +
1.100 +<LI>
1.101 +Wrapping tags are special tags such as title, textarea, server, script,
1.102 +style, and etc.. The comment in ns\lib\libparse\pa_parse.c says:</LI>
1.103 +
1.104 +<BR> /*
1.105 +<BR> * These tags are special in that, after opening one of
1.106 +them, all other tags are ignored until the matching
1.107 +<BR> * closing tag.
1.108 +<BR> */
1.109 +<BR>During the searching of an end tag, comments and quoted strings are
1.110 +observed. see <A HREF="../testhtml/title01.html">compatibility test title01.html</A>.
1.111 +6.0 handles comments now, need to add quoted string.
1.112 +<LI>
1.113 +If a <tr> or <td> tag is seen outside any <table> scope, it is
1.114 +ignored. see <A HREF="../testhtml/table110.htm">compatibility test table110.htm</A>.</LI>
1.115 +
1.116 +<LI>
1.117 +<FONT COLOR="#000000">In case of table in table but not in cell, table
1.118 +tags before the last table tag are ignored. We found this problem in some
1.119 +Netscape public pages, see bug #85118. For example, <table> <table
1.120 +border> .....,or <table> <tr> <table border>..., the table
1.121 +will be displayed with border. </FONT> <A HREF="../testhtml/table201.html">compatibility
1.122 +test table201.html</A>. There table and tr tags are buffered for this recovery.
1.123 +When a TD or CAPTION tag is open, the buffer is flushed out, because we
1.124 +cannot buffer contents of TD or CAPTION for performance and memory constrains.
1.125 +They are subdoc's and can be very big. If we see a <table> outside cell
1.126 +after previous table is flushed out, the new <table> tag is ignored.
1.127 +Nav4.0 can discard previous table in such case. <A HREF="../testhtml/tableall.html">tableall.html
1.128 +</A>is the index for table test cases.</LI>
1.129 +
1.130 +<LI>
1.131 +Caption is not a commonly used feature. In Nav4.0, captions can be anywhere.
1.132 +For Captions outside cells, the first one takes effect. For captions inside
1.133 +cells, the last one takes effect, and they also close TD and TR. In 6.0,
1.134 +caption is limited to the standard position: after <table>. Captions
1.135 +in other places are ignored, their contents are treated as text. See test
1.136 +case table05a.html to table05o.html.</LI>
1.137 +
1.138 +<LI>
1.139 +<FONT COLOR="#000000">For <table> <tr> <tr>, the first <tr>
1.140 +takes effect.</FONT></LI>
1.141 +
1.142 +<LI>
1.143 +The nav4 parser notices when it hits EOF and it's in the middle of scanning
1.144 +in a comment. When this happens, the parser goes back and looks for an
1.145 +improperly closed comment (e.g. a simple > instead of a -->). If it finds
1.146 +one, it reparses the input after closing out the comment.</LI>
1.147 +
1.148 +<LI>
1.149 +<FONT COLOR="#FF0000">XXX Brendan also pointed out that there is something
1.150 +similar done for tags, but I don't recall what it is right now.</FONT></LI>
1.151 +
1.152 +<LI>
1.153 +<FONT COLOR="#000000">When Nav4.0 sees the '<' sign, it searchs for
1.154 +'>', observing quoted values. If it cannot find one till EOF, the '<'
1.155 +sign is treated as text. In Xena 6.0, a limit is set for how far the '>'
1.156 +is searched. the default limit is 4096 char, and there is a API HTMLScanner.setMaxTagLength()
1.157 +to changed it. setting -1 means no limit, which is same as Nav4.0.</FONT></LI>
1.158 +</UL>
1.159 +<FONT COLOR="#FF0000">TODO:</FONT>
1.160 +<UL><FONT COLOR="#FF0000">Document the mapping of tag attributes into CSS1
1.161 +style, including any new "css1" attributes</FONT>
1.162 +<BR> </UL>
1.163 +<B>List of 6.0 features incompatible with 4.0</B>
1.164 +<UL>
1.165 +<LI>
1.166 +Navigator 4.0 value string is truncated at 82 characters. XENA60 limit
1.167 +is MAX_STRING_LENGTH = 2000.</LI>
1.168 +
1.169 +<BR> </UL>
1.170 +
1.171 +<HR WIDTH="100%">
1.172 +<H2>
1.173 +Tags (Categorically sorted)</H2>
1.174 +All line breaks are conditional. If the x coordinate is at the current
1.175 +left margin then a soft line break does nothing. Hard line breaks are ignored
1.176 +if the last tag did a hard line break.
1.177 +
1.178 +<P><B>divalign</B> = left | right | center | justify
1.179 +<BR><B>alignparam</B> = abscenter | left | right | texttop | absbottom
1.180 +| baseline | center | bottom | top | middle | absmiddle
1.181 +<BR><B>colorspec</B> = named-color | #xyz | #xxyyzz | #xxxyyyzzz | #xxxxyyyyzzzz
1.182 +<BR><B>clip</B> = [auto | value-or-pct-xy](1..4) (pct of width for even
1.183 +coordinates; pct of height for odd coordinates)
1.184 +<BR><B>value-or-pct = </B>an integer with an optional %; ifthe percent
1.185 +is present any following characters are ignored!
1.186 +<BR><B>coord-list</B> = <FONT COLOR="#DD0000">XXX</FONT>
1.187 +<BR><FONT COLOR="#000000"><B>whitespace-strip</B> = remove leading and
1.188 +trailing and any embedded whitespace that is not an actual space (e.g.
1.189 +newlines)</FONT>
1.190 +<H1>
1.191 +Head objects:</H1>
1.192 +<B>TITLE</B>
1.193 +<UL>The TITLE tag is a container tag whose contents are not HTML. The contents
1.194 +are pure text and are processed by the parser until the closing tag is
1.195 +found. There are no attributes on the tag and any whitespace present in
1.196 +the tag is compressed down with leading and trailing whitespace eliminated.
1.197 +The first TITLE tag found by the parser is used as the document's title
1.198 +(subsequent tags are ignored).</UL>
1.199 +<B>BASE</B>
1.200 +<UL>Sets the base element in the head portion of the document. Defines
1.201 +the base URL for <FONT COLOR="#DD0000">all</FONT>? links in the document.
1.202 +<BR>Attributes:
1.203 +<UL><B>HREF</B>=url [This is an absolute URL]
1.204 +<BR><B>TARGET</B>=string [must start with XP_ALPHA|XP_DIGIT|underscore
1.205 +otherwise nav4 ignores it]</UL>
1.206 +</UL>
1.207 +<B>META</B>
1.208 +<UL>Can define several header fields (content-encoding, author, etc.)
1.209 +<BR>Attributes:
1.210 +<UL><B>REL</B>=SMALL_BOOKMARK_ICON|LARGE_BOOKMARK_ICON
1.211 +<UL><B>SRC</B>=string</UL>
1.212 +<B>HTTP-EQUIV</B>="header: value"
1.213 +<UL><B>CONTENT</B>=string</UL>
1.214 +</UL>
1.215 +HTTP-EQUIV values (from libnet/mkutils.c NET_ParseMimeHeader):
1.216 +<UL>ACCEPT-RANGES
1.217 +<BR>CONTENT-DISPOSITION
1.218 +<BR>CONTENT-ENCODING
1.219 +<BR>CONTENT-RANGE
1.220 +<BR>CONTENT-TYPE [ defines character set only ]
1.221 +<BR>CONNECTION
1.222 +<BR>DATE
1.223 +<BR>EXPIRES
1.224 +<BR>EXT-CACHE
1.225 +<BR>LOCATION
1.226 +<BR>LAST-MODIFIED
1.227 +<BR>LINK
1.228 +<BR>PROXY-AUTHENTICATE
1.229 +<BR>PROXY-CONNECTION
1.230 +<BR>PRAGMA
1.231 +<BR>RANGE
1.232 +<BR>REFRESH
1.233 +<BR>SET-COOKIE
1.234 +<BR>SERVER
1.235 +<BR>WWW-AUTHENTICATE
1.236 +<BR>WWW-PROTECTION-TEMPLATE
1.237 +<BR>WINDOW-TARGET</UL>
1.238 +Style sheets and HTML w3c spec adds this:
1.239 +<UL>CONTENT-STYLE-TYPE [ last one wins; overrides header from server if
1.240 +any ]</UL>
1.241 +</UL>
1.242 +<B>LINK</B>
1.243 +<UL>List related resources. Used by extensions mechanism to find tag handlers.
1.244 +<FONT COLOR="#0000FF">/LINK == LINK!</FONT>
1.245 +<BR>Attributes:
1.246 +<UL><B>REL</B>=FONTDEF
1.247 +<UL><B>SRC</B>=url</UL>
1.248 +<B>REL</B>=STYLESHEET [ If MEDIA param is defined it must ==nc screen ]
1.249 +<UL><B>LANGUAGE</B>=LiveScript|Mocha|JavaScript1.1|JavaScript1.2
1.250 +<BR><B>TYPE</B>="text/javascript" | "text/css"
1.251 +<BR><B>HREF</B>=url
1.252 +<BR><B>ARCHIVE</B>=url
1.253 +<BR><B>CODEBASE</B>=url
1.254 +<BR><B>ID</B>=string
1.255 +<BR><B>SRC</B>=url</UL>
1.256 +</UL>
1.257 +Note: HREF takes precedence over SRC in nav4.</UL>
1.258 +<B>HEAD</B>
1.259 +<UL>/HEAD clears the "in_head" flag (but leaves the "in_body" flag alone.
1.260 +<BR>Text in head clears in_head, and set in_body true, just as if the author
1.261 +forgot the /HEAD tag.
1.262 +<BR>Attributes: none</UL>
1.263 +<B>HTML</B>
1.264 +<UL>Ignored.
1.265 +<BR>Attributes: none</UL>
1.266 +<B>STYLE</B>
1.267 +<UL>Allowed anywhere in the document. Note that entities are not parsed
1.268 +in the style tag's content.
1.269 +<BR>Attributes:
1.270 +<UL><B>LANGUAGE</B>=LiveScript|Mocha|JavaScript1.1|JavaScript1.2
1.271 +<BR><B>TYPE</B>="text/javascript" | "text/css"
1.272 +<BR><B>HREF</B>=url
1.273 +<BR><B>ARCHIVE</B>=url
1.274 +<BR><B>CODEBASE</B>=url
1.275 +<BR><B>ID</B>=string
1.276 +<BR><B>SRC</B>=url</UL>
1.277 +</UL>
1.278 +<B>FRAMESET</B>
1.279 +<UL>Frameset with rows=1 and cols=1 is ignored.
1.280 +<BR>Attributes:
1.281 +<UL><B>FRAMEBORDER</B>= no | 0 (zero) [default is no_edges=false]
1.282 +<BR><B>BORDER</B>= int [clamped: >= 0 && <= 100]
1.283 +<BR><B>BORDERCOLOR</B>= color
1.284 +<BR><B>ROWS</B>= pct-list
1.285 +<BR><B>COLS</B>= pct-list</UL>
1.286 +</UL>
1.287 +<B>FRAME</B>
1.288 +<UL>Border width of zero disables edges.
1.289 +<BR>Attributes:
1.290 +<UL><B>FRAMEBORDER</B>= no | 0 (zero) [default is framesets value]
1.291 +<BR><B>BORDER</B>= int [clamped; >= 0 && <= 100]
1.292 +<BR><B>BORDERCOLOR</B>= color
1.293 +<BR><B>NORESIZE</B>= true [default is false]
1.294 +<BR><B>SCROLLING</B>= yes | scroll | on | no | noscroll | off
1.295 +<BR><B>SRC</B>= url [clamped: prevent recursion by eliminating any anscestor
1.296 +references]
1.297 +<BR><B>NAME</B>= string
1.298 +<BR><B>MARGINWIDTH</B>= int (clamped: >= 1)
1.299 +<BR><B>MARGINHEIGHT</B>= int (clamped: >= 1)</UL>
1.300 +</UL>
1.301 +<B>NOFRAMES</B>
1.302 +<UL>Used when frames are disabled or for backrev browsers. Has no stylistic
1.303 +consequences.</UL>
1.304 +
1.305 +<H1>
1.306 +
1.307 +<HR WIDTH="100%">Body objects:</H1>
1.308 + <B>BODY</B>
1.309 +<UL>The tag is only processed on open tags and it is always processed.
1.310 +See ns\lib\layout\laytags.c, searching for "case P_BODY". During tag processing
1.311 +the in_head flag is set to false and the in_body flag is set to true. An
1.312 +attribute is ignored if the document already has that attribute set. Attributes
1.313 +can be set by style sheets, or by previous BODY tags. see <A HREF="../testhtml/head02.html">test
1.314 +head02.html</A>.
1.315 +<BR>Attributes:
1.316 +<UL><B>MARGINWIDTH</B>=int [clamped: >= 0 && < (windowWidth/2
1.317 +- 1)]
1.318 +<BR><B>MARGINHEIGHT</B>=int [clamped: >= 0 && < (windowHeight/2
1.319 +- 1)]
1.320 +<BR><B>BACKGROUND</B>=url
1.321 +<BR><B>BGCOLOR</B>=colorspec
1.322 +<BR><B>TEXT</B>=colorspec
1.323 +<BR><B>LINK</B>=colorspec
1.324 +<BR><B>VLINK</B>=colorspec
1.325 +<BR><B>ALINK</B>=colorspec
1.326 +<BR><B>ONLOAD, ONUNLOAD, UNFOCUS, ONBLUR, ONHELP</B>=script
1.327 +<BR><B>ID</B>=string</UL>
1.328 +</UL>
1.329 +<B>LAYER, ILAYER</B>
1.330 +<UL>Open layer/ilayer tag automaticly close out an open form if one is
1.331 +open. It does something to the soft linebreak state too.
1.332 +<BR>Attributes:
1.333 +<UL><B>LEFT</B>=value-or-pct (pct of <TT>right-left</TT> margin)
1.334 +<BR><B>PAGEX</B>=x (if no LEFT)
1.335 +<BR><B>TOP</B>=value-or-pct
1.336 +<BR><B>PAGEY</B>=y (if no TOP)
1.337 +<BR><B>CLIP</B>=clip
1.338 +<BR><B>WIDTH</B>=value-or-pct (pct of <TT>right-left</TT> margin)
1.339 +<BR><B>HEIGHT</B>=value-or-pct
1.340 +<BR><B>OVERFLOW</B>=string
1.341 +<BR><B>NAME</B>=string
1.342 +<BR><B>ID</B>=string
1.343 +<BR><B>ABOVE</B>=string
1.344 +<BR><B>BELOW</B>=string
1.345 +<BR><B>ZINDEX</B>=int [any value]
1.346 +<BR><B>VISIBILITY</B>=string
1.347 +<BR><B>BGCOLOR</B>=colorspec
1.348 +<BR><B>BACKGROUND</B>=url</UL>
1.349 +</UL>
1.350 +<B>NOLAYER</B>
1.351 +<UL>Container for content which is used when layers are disabled or unsupported.
1.352 +The content has no style consequences (though it could if somebody stuck
1.353 +in some CSS1 style rules for it).</UL>
1.354 +<B>P</B>
1.355 +<UL>Closes the paragraph. If the attribute is present then an alignment
1.356 +gets pushed on the alignment stack. All values are supported by nav4.
1.357 +<BR>Attributes:
1.358 +<UL><B>ALIGN</B>=divalign</UL>
1.359 +</UL>
1.360 +<B>ADDRESS</B>
1.361 +<UL>There are no attributes. ADDRESS closes out the open paragraph. The
1.362 +open tag does a conditional soft line break and then pushes a merge of
1.363 +the current style with italics enabled onto the style stack. The close
1.364 +always pop the style stack and also does a conditional soft line break.</UL>
1.365 +<B>PLAINTEXT, XMP</B>
1.366 +<UL>PLAINTEXT causes the remaining content to no longer be parsed. XMP
1.367 +causes the content to not parse entities or other tags. The XMP can be
1.368 +closed by it's own tag (on any boundary); PLAINTEXT is not closed (html3.2
1.369 +allows it to be closed). Both tags change the style to a fixed font of
1.370 +a</UL>
1.371 +<B>LISTING</B>
1.372 +<UL>Closes the paragraph. Does a hard line break on open and close. Open
1.373 +pushes a fixed width font style of a particular font size on the style
1.374 +stack. The close tag pops the top of the style stack.
1.375 +<BR>Attributes: none</UL>
1.376 +<B>PRE</B>
1.377 +<UL>Closes the paragraph. The open tag does a hard line break. A fixed
1.378 +font style (unless VARIABLE is present) is pushed on the style stack. The
1.379 +close tag pops the top of the style stack. It also does a hard line break.
1.380 +<BR>Attributes:
1.381 +<UL><B>WRAP</B>
1.382 +<BR><B>COLS</B>=int [clamped: >= 0]
1.383 +<BR><B>TABSTOP</B>=int [clamped: >= 0; clamped value is replaced with default
1.384 +value]
1.385 +<BR><B>VARIABLE</B></UL>
1.386 +</UL>
1.387 +<B>NOBR</B>
1.388 +<UL>This tag doesn't nest. Instead it just sets or clears a flag in the
1.389 +state machine. It has no effect on any other state.</UL>
1.390 +<B>CENTER</B>
1.391 +<UL>Closes the paragraph. Always does a conditional soft line break. The
1.392 +open tag pushes an alignment on the aligment stack. The close tag pops
1.393 +the top alignment off.
1.394 +<BR>Attributes: none</UL>
1.395 +<B>DIV</B>
1.396 +<UL>Closes the paragraph. Always does a conditional soft line break. COLS
1.397 +defines the number of columns to layout in (like MULTICOL). The open tag
1.398 +pushes an alignment on the alignment stack (if COLS > 1 then it pretends
1.399 +to be a MULTICOL tag). The close tag pops an aligment from the alignment
1.400 +stack.
1.401 +<BR>Attributes:
1.402 +<UL><B>ALIGN</B>=divalign
1.403 +<BR><B>COLS</B>=int [if cols > 1 then DIV acts like a MULTICOL tag else
1.404 +DIV is just a container]
1.405 +<UL><B>GUTTER</B>= int (clamped: >= 1)
1.406 +<BR><B>WIDTH</B>= value-or-pct [pct of right-left margin; clamped >= 1/0
1.407 +(strange code)]</UL>
1.408 +</UL>
1.409 +</UL>
1.410 +<B>H1-H6</B>
1.411 +<UL>Closes the paragraph. The open tag does a hard line break and pushes
1.412 +a style item which enables bold and disables fixed and italic. The close
1.413 +tag always pops the top item from the style stack. It also does a hard
1.414 +line break. If the <B>ALIGN</B> attribute is present then the open tag
1.415 +pushes an alignment on the alignment stack. The close tag will look at
1.416 +the top of the alignment stack and if its a header of any kind (H1 through
1.417 +H6) then the alignment is popped. In either case the close tag also does
1.418 +a conditional soft line break (this happens before the hard line break).
1.419 +<BR>Attributes:
1.420 +<UL><B>ALIGN</B>=divalign</UL>
1.421 +</UL>
1.422 +A note regarding closing paragraphs: Any time a close paragraph is done
1.423 +(for any tag) if the top of the alignment stack has a tag named "P" then
1.424 +a conditional soft line break is done and the alignment is popped.
1.425 +<H3>
1.426 +
1.427 +<HR ALIGN=LEFT WIDTH="50%"></H3>
1.428 +<B>TABLE</B>
1.429 +<UL>Close the paragraph.
1.430 +<BR>Attributes:
1.431 +<UL><B>ALIGN=</B>left|right|center|abscenter
1.432 +<BR><B>BORDER</B>=int [clamped: if null then -1, if < 1 then 1 ]
1.433 +<BR><B>BORDERCOLOR</B>=string [if not supplied then set to the text color
1.434 +]
1.435 +<BR><B>VSPACE</B>=int [ clamped: >= 0 ]
1.436 +<BR><B>HSPACE</B>=int [ clamped: >= 0 ]
1.437 +<BR><B>BGCOLOR</B>=color
1.438 +<BR><B>BACKGROUND</B>=url
1.439 +<BR><B>WIDTH</B>=value-or-pct [ % of win.width minus margins; clamped:
1.440 +>= 0 ]
1.441 +<BR><B>HEIGHT</B>=value-or-pct [ % of win.height minus margins; clamped:
1.442 +>= 0 ]
1.443 +<BR><B>CELLPADDING</B>=int [clamped: >= 0; separate pads take precedence
1.444 +]
1.445 +<BR><B>TOPPADDING</B>= int [clamped: >= 0 ]
1.446 +<BR><B>BOTTOMPADDING</B>= int [clamped: >= 0 ]
1.447 +<BR><B>LEFTPADDING</B>= int [clamped: >= 0 ]
1.448 +<BR><B>RIGHTPADDING</B>= int [clamped: >= 0 ]
1.449 +<BR><B>CELLSPACING</B>= int [clamped: >= 0 ]
1.450 +<BR><B>COLS</B>=int [clamped: >= 0]</UL>
1.451 +The code supports more attributes in the Table attribute handler than it
1.452 +does in the code that gets the attributes from the tag! They are border_top,
1.453 +border_left, border_right, border_bottom, border_style (defaults to outset;
1.454 +allows for outset/dotted/none/dashed/solid/double/groove/ridge/inset).</UL>
1.455 +<B>TR</B>
1.456 +<UL>Open TR automatically closes an open table row (and an open table cell
1.457 +if one is open). It also automatically closes a CAPTION tag.
1.458 +<BR>Attributes:
1.459 +<UL><B>BGCOLOR</B>=color
1.460 +<BR><B>BACKGROUND</B>=url
1.461 +<BR><B>VALIGN</B>=top|bottom|middle|center(==middle)|baseline; default
1.462 +is top
1.463 +<BR><B>ALIGN</B>=left|right|middle|center(==middle); default is left</UL>
1.464 +</UL>
1.465 +<B>TH, TD</B>
1.466 +<UL>If no table then the tag is ignored (open or close). If no row is currently
1.467 +opened or the current row is current done (because of a </TR> tag) then
1.468 +a new row is begun. Oddly enough the tag parameters for the row come from
1.469 +the TH/TD tag in this case. An open of either of these tags will automatically
1.470 +close the previous cell.
1.471 +<BR>Attributes:
1.472 +<UL><B>COLSPAN</B>=int [clamped: >= 1 && <= 1000 ]
1.473 +<BR><B>ROWSPAN</B>=int [clamped: >= 1 && <= 10000 ]
1.474 +<BR><B>NOWRAP</B> [boolean: disables wrapping ]
1.475 +<BR><B>BGCOLOR</B>=color [default: inherit from the row; if not row then
1.476 +table; if not table then inherit from an outer table cell; this works because
1.477 +the style is flattened so the outer table cell will have a color]
1.478 +<BR><B>BACKGROUND</B>=url [same rules as bgcolor for inheritance; tile
1.479 +mode is inherited too and not settable by TH/TD attributes (have to use
1.480 +style sheets for that)]
1.481 +<BR><B>VALIGN</B>=top|bottom|middle|center(==middle)|baseline; default
1.482 +is top
1.483 +<BR><B>ALIGN</B>=left|right|middle|center(==middle); default is left
1.484 +<BR><B>WIDTH</B>=value-or-pct [ clamped: >= 0 ]
1.485 +<BR><B>HEIGHT</B>=value-or-pct [ clamped: >= 0 ]</UL>
1.486 +</UL>
1.487 +<B>CAPTION</B>
1.488 +<UL>An open caption tag will automatically close an open table row (and
1.489 +an open cell).
1.490 +<BR>Attributes:
1.491 +<UL><B>ALIGN</B>=bottom</UL>
1.492 +The code sets the vertical alignment to top w/o providing a mechanism for
1.493 +the user to set it (there is no VALIGN attribute).</UL>
1.494 +<B>MULTICOL</B>
1.495 +<UL>The open tag does a hard line break. The close tag checks to see if
1.496 +the state machine has an open multicol and if it does then it does a conditional
1.497 +soft line break and then continues to break until both margins are cleared
1.498 +of floating elements. It recomputes the margins based on the list indenting
1.499 +level (?). After the synthetic table is output the close tag does a hard
1.500 +line break.
1.501 +
1.502 +<P>This tag will treat the input as source for a table with one row and
1.503 +COLS columns. The data is laid out using the width divided by the number
1.504 +of columns. After the total height is known, the content is partitioned
1.505 +as evenly as possible between the columns in the table.
1.506 +<BR>Attributes:
1.507 +<UL><B>COLS</B>=int [clamped: values less than 2 cause the tag to be ignored]
1.508 +<BR><B>GUTTER</B>=int [clamped: >= 1]
1.509 +<BR><B>WIDTH</B>=value-or-pct [pct of right-left margin; clamped: >= 1/0
1.510 +(strange code)]</UL>
1.511 +</UL>
1.512 +
1.513 +<H3>
1.514 +
1.515 +<HR ALIGN=LEFT WIDTH="50%"></H3>
1.516 +<B>BLOCKQUOTE</B>
1.517 +<UL>Closes the paragraph. The open tag does a hard line break. A list with
1.518 +the empty-bullet style is pushed on the list stack (unless TYPE=cite/jwz
1.519 +then a styled list is pushed). The close tag pops any list and does a hard
1.520 +line break.
1.521 +<BR>Attributes:
1.522 +<UL><B>TYPE</B>=cite | jwz</UL>
1.523 +</UL>
1.524 +<B>UL, OL, MENU, DIR</B>
1.525 +<UL>For top-level lists (lists not in lists) a hard break is done on the
1.526 +open tag, otherwise a conditional-soft-break is done. Tag always does a
1.527 +close paragrah. The close tag does a conditional soft line break when nested;
1.528 +when not nested the close tag does a hard line break (even if no list is
1.529 +open). The open tag pushes the list on the list stack. The close tag pops
1.530 +any list off the list stack.
1.531 +<BR>Attributes:
1.532 +<UL><B>TYPE</B>= none | disc | circle | round | square | decimal | lower-roman
1.533 +| upper-roman | lower-alpha | upper-alpha | A | a | I | i [clamped: if
1.534 +none of the above is picked and OL then the bullet type is "number" otherwise
1.535 +the bullet type is "basic"]
1.536 +<BR><B>START</B>=int [clamped: >= 1]
1.537 +<BR><B>COMPACT</B></UL>
1.538 +</UL>
1.539 +<B>DL</B>
1.540 +<UL>Closes the paragraph. For the open tag, if the list is nested then
1.541 +a conditional soft line break is done otherwise a hard line break is done.
1.542 +The open tag pushes a list on the list stack. The close tag pops any list
1.543 +from the list stack. Closing the list acts like other lists closes.
1.544 +<BR>Attributes:
1.545 +<UL><B>COMPACT</B></UL>
1.546 +</UL>
1.547 +<B>LI</B>
1.548 +<UL>Closes the paragraph. The open tag does a conditional soft line break.
1.549 +Close tags are ignored (except for closing the paragraph).
1.550 +<BR>Attributes:
1.551 +<UL><B>TYPE</B>= A | a | I | i (if the containing list is an <B>OL</B>)
1.552 +<BR><B>TYPE</B>= round | circle | square (if the containing list is not
1.553 +<B>OL</B> and not <B>DL</B>)
1.554 +<BR><B>VALUE</B>=int [clamped: >= 1]</UL>
1.555 +The magellan html parser allows the full set of list item styles from the
1.556 +OL/DL tag instead of just the limited set that nav4 allows.</UL>
1.557 +<B>DD</B>
1.558 +<UL>Closes the paragraph. Close tags are ignored (except for closing the
1.559 +paragraph). DD outside a DL just advances the X coordinate of layout by
1.560 +a small constant. DD inside a DL does a conditional soft line break and
1.561 +other margin crud.
1.562 +<BR>Attributes: none.</UL>
1.563 +<B>DT</B>
1.564 +<UL>Closes the paragraph (open or close). Close tags are otherwise ignored.
1.565 +Does a conditional soft line break. Moves the X layout coordinate to the
1.566 +left margin.
1.567 +<BR>Attributes: none</UL>
1.568 +
1.569 +<H3>
1.570 +
1.571 +<HR ALIGN=LEFT WIDTH="50%"></H3>
1.572 +<B>A</B>
1.573 +<UL>Open anchors push a style on the style stack if the anchor has an <B>HREF</B>.
1.574 +Close anchors pop as many styles off the top of the style stack that are
1.575 +anchor tags (anchor tags don't nest in other words). In addition, any styles
1.576 +on the stack that have the ANCHOR bit set have it cleared and fiddle with
1.577 +the foreground and background colors.
1.578 +<BR>Attributes:
1.579 +<UL><B>NAME</B>=string
1.580 +<BR><B>HREF</B>=url
1.581 +<UL><B>TARGET</B>=target
1.582 +<BR><B>SUPPRESS</B>=true</UL>
1.583 +</UL>
1.584 +</UL>
1.585 +<B>STRIKE, S, TT, CODE, SAMPLE, KBD, B, STRONG, I, EM, VAR, CITE, BLINK,
1.586 +BIG, SMALL, U, INLINEINPUT, SPELL</B>
1.587 +<UL>The open tag pushes onto the style stack. The close tag always pops
1.588 +the top item from the style stack.
1.589 +<BR>Attributes: none</UL>
1.590 +<B>SUP, SUB</B>
1.591 +<UL>The open tag pushes a font size descrease on the style stack. The close
1.592 +tag always pops the top of the style stack. The open and close tag impacts
1.593 +the baselineThe only difference between SUP and SUB is how they impact
1.594 +the baseline. Note that the baseline information is forgotten after a line
1.595 +break; therefore a close SUP/SUB on the next line will do strange things.
1.596 +<BR>Attributes: none</UL>
1.597 +<B>SPAN</B>
1.598 +<UL>Ignored by the navigator.
1.599 +<BR>Attributes: none</UL>
1.600 +<B>FONT</B>
1.601 +<UL>The open font tag with no attributes resets the font size to the base
1.602 +font size. The open tag always pushes a style stack entry. The close tag
1.603 +always pops the top item off the style stack.
1.604 +<BR>Attributes:
1.605 +<UL><B>SIZE</B>=[+ int | - int | int ] [clamped: >=1 && <=
1.606 +7]
1.607 +<BR><B>POINT-SIZE=</B>[+ int | - int | int ] [clamped: >= 1 &&
1.608 +<= 1600]
1.609 +<BR><B>FONT-WEIGHT</B>=[+ int | - int | int ] [clamped: >= 100 &&
1.610 +<= 900]
1.611 +<BR><B>COLOR</B>=colorspec
1.612 +<BR><B>FACE</B>=string</UL>
1.613 +</UL>
1.614 +A note regarding the style stack: The pop of the stack checks to see if
1.615 +the top of the stack is an ANCHOR tag. If it is not an anchor then the
1.616 +top item is unconditionally popped. If the top of the style stack is an
1.617 +anchor tag then the code searches for either the bottom of the stack or
1.618 +the first style stack entry not created by an anchor tag. If the entry
1.619 +is followed by another entry then the entry is removed from the stack (an
1.620 +out-of-order pop in other words). In this case the anchor style stack entry
1.621 +is left untouched.
1.622 +<H3>
1.623 +
1.624 +<HR ALIGN=LEFT WIDTH="50%"></H3>
1.625 +<B>text, entities</B>
1.626 +<UL>These are basic content objects that get fed directly to the output.
1.627 +In navigator the text is processed by doing line-breaking (entities have
1.628 +been converted to text already by the parser). The line-breaking is controlled
1.629 +by the margin settings and the list depth, the floating elements, the style
1.630 +attributes (font size, etc.), the preformatted flag, the no-break flag
1.631 +and so on.</UL>
1.632 +<B>IMG, IMAGE</B>
1.633 +<UL>Close tag is ignored.
1.634 +<BR>Attributes:
1.635 +<UL><B>ISMAP</B>
1.636 +<BR><B>USEMAP</B>=url
1.637 +<BR><B>ALIGN</B>=alignparam
1.638 +<BR><B>SRC</B>=url [ whitespace is stripped ]
1.639 +<BR><B>LOWSRC</B>=url
1.640 +<BR><B>ALT</B>=string
1.641 +<BR><B>WIDTH</B>=value-or-pct (pct of <TT>right-left</TT> width)
1.642 +<BR><B>HEIGHT</B>=value-or-pct (pct of window height)
1.643 +<BR><B>BORDER</B>=int [clamped: >= 0]
1.644 +<BR><B>VSPACE</B>=int [clamped: >= 0]
1.645 +<BR><B>HSPACE</B>=int [clamped: >= 0]
1.646 +<BR><B>SUPPRESS</B>=true | false (only in blocked image layout???)</UL>
1.647 +</UL>
1.648 +<B>HR</B>
1.649 +<UL>Closes the paragraph. If an open tag then does a conditional soft line
1.650 +break. The rule inherits alignment from the parent container unless there
1.651 +is no container (then it's centered) or if the tag defines it's own alignment.
1.652 +After the object is inserted into the layout stream a soft line break is
1.653 +inserted as well.
1.654 +<BR>Attributes:
1.655 +<UL><B>ALIGN</B>=divalign (sort of; in laytags.c it's divalign; in layhrule.c
1.656 +it's left or right only)
1.657 +<BR><B>SIZE</B>=int (1 to 100 inclusive)
1.658 +<BR><B>WIDTH</B>=val-or-pct (pct of <TT>right-left</TT> width)
1.659 +<BR><B>NOSHADE</B></UL>
1.660 +</UL>
1.661 +<B>BR</B>
1.662 +<UL>Does an unconditional soft break. If clear is set then it will also
1.663 +soft break until either the left or right or both margins are clear of
1.664 +floating elements. Note that<FONT COLOR="#0000FF"> /BR == BR!</FONT>
1.665 +<BR>Attributes:
1.666 +<UL><B>CLEAR</B>=left | right | all | both</UL>
1.667 +</UL>
1.668 +<B>WBR</B>
1.669 +<UL>Soft word break.
1.670 +<BR>Attributes: none</UL>
1.671 +<B>EMBED</B>
1.672 +<UL>Close tag does nothing. Embed's operate inline just like images (they
1.673 +don't close the paragraph).
1.674 +<BR>Attributes:
1.675 +<UL><B>HIDDEN</B>=no | false | off
1.676 +<BR><B>ALIGN</B>=alignparam
1.677 +<BR><B>SRC</B>=url
1.678 +<BR><B>WIDTH</B>=val-or-pct (pct of <TT>right-left</TT> width)
1.679 +<BR><B>HEIGHT</B>=val-of-pct; if val is < 1 (sometimes) the element
1.680 +gets HIDDEN automatically
1.681 +<BR><B>BORDER</B>=int (unsupported by navigator)
1.682 +<BR><B>VSPACE</B>=int [clamped: >= 0]
1.683 +<BR><B>HSPACE</B>=int [clamped: >= 0]</UL>
1.684 +</UL>
1.685 +<B>NOEBMED</B>
1.686 +<UL>Used when EMBED's are disabled. It is a container for regular content
1.687 +that has no stylistic consequences (no line breaking, no style stack effect,
1.688 +etc.).</UL>
1.689 +<B>APPLET</B>
1.690 +<UL>Applet tags don't nest (there is a notion of current_applet). The open
1.691 +tag automatically closes an open applet tag.
1.692 +<BR>Attributes:
1.693 +<UL><B>ALIGN</B>=alignparam
1.694 +<BR><B>CODE</B>=string
1.695 +<BR><B>CODEBASE</B>=string
1.696 +<BR><B>ARCHIVE</B>=string
1.697 +<BR><B>MAYSCRIPT</B>
1.698 +<BR><B>NAME</B>=string [clamped: white space is stripped out]
1.699 +<BR><B>WIDTH</B>=value-or-pct [pct of right-left width; clamped: >= 1]
1.700 +<BR><B>HEIGHT</B>=value-or-pct [pct of window height; clamped >= 1]
1.701 +<BR><B>BORDER</B>=int [clamped: >= 0]
1.702 +<BR><B>HSPACE</B>=int [clamped: >= 0]
1.703 +<BR><B>VSPACE</B>=int [clamped: >= 0]</UL>
1.704 +If no width is provided:
1.705 +<UL>if a height was provided, use the height. Otherwise, use 90% of the
1.706 +window width if percentage widths are allowed, otherwise use a value of
1.707 +600.
1.708 +<BR> </UL>
1.709 +If no height is provided:
1.710 +<UL>if a width was provided, use the width. Otherwise, use 50% of the window
1.711 +height if percentage widths are allowed, otherwise use a value of 400.</UL>
1.712 +If the applet is hidden, then the widht/height get forced to zero.</UL>
1.713 +<B>PARAM</B>
1.714 +<UL>The param tag is supported when contained by the APPLET tag or the
1.715 +OBJECT tag. It has no stylistic consequences. The attribute values from
1.716 +the tag are passed to the containing APPLET or OBJECT. Note that <FONT COLOR="#0000FF">/PARAM
1.717 +== PARAM</FONT>.
1.718 +<BR>Attributes:
1.719 +<UL><B>NAME</B>=string [clamped: white space is stripped out]
1.720 +<BR><B>VALUE</B>=string [clamped: white space is stripped out]</UL>
1.721 +White space being stripped is done as follows: leading and trailing whitespace
1.722 +is removed. Any embedded whitespace is left alone except if it's a non-space
1.723 +whitespace in which case it is removed.</UL>
1.724 +<B>OBJECT</B>
1.725 +<UL>The open tag pushes an object onto the object stack. The close tag
1.726 +pops from the object stack. I don't understand how the data stuff works.
1.727 +<BR>Attributes:
1.728 +<UL><B>CLASSID</B>=string (clsid:, java:, javaprogram:, javabean: are the
1.729 +supported prefixes; maybe it's a url if no prefix shown?)
1.730 +<BR><B>TYPE</B>=string (a mime type)
1.731 +<BR><B>DATA</B>=string (data: prefix mentions a url)</UL>
1.732 +There are more attributes that depend on the type of object being embedded
1.733 +in the page. If the object is a java bean (?) then the applet parameters
1.734 +are supported:
1.735 +<UL>CLASSID
1.736 +<BR>HIDDEN
1.737 +<BR>ALIGN
1.738 +<BR>CLASSID (instead of CODE)
1.739 +<BR>CODEBASE
1.740 +<BR>ARCHIVE
1.741 +<BR>MAYSCRIPT
1.742 +<BR>ID (applets use NAME)
1.743 +<BR>WIDTH
1.744 +<BR>HEIGHT
1.745 +<BR>BORDER
1.746 +<BR>HSPACE
1.747 +<BR>VSPACE</UL>
1.748 +</UL>
1.749 +<B>MAP</B>
1.750 +<UL>The open tag automatically closes an open map (maps don't nest). There
1.751 +is no stylistic consequence of the map nor does it provide any visible
1.752 +presentation in the normal layout case (an editor would do something different).
1.753 +The map can be declared anywhere in the document.
1.754 +<BR>Attributes:
1.755 +<UL><B>NAME</B>=string [clamped: white space is stripped out]</UL>
1.756 +</UL>
1.757 +<B>AREA</B>
1.758 +<UL>Does nothing if there is no current map or the tag is a close tag.
1.759 +<BR>Attributes:
1.760 +<UL><B>SHAPE</B>=default | rect | circle | poly | polygon
1.761 +<BR><B>ALT</B>=string [clamped: newlines are stripped]
1.762 +<BR><B>COORDS</B>=coord-list
1.763 +<BR><B>HREF=</B>url
1.764 +<UL><B>TARGET</B>=target (only if HREF is specified)</UL>
1.765 +<B>SUPPRESS</B></UL>
1.766 +</UL>
1.767 +<B>SERVER</B>
1.768 +<UL>A container for server-side javascript. Not evaluated by the client
1.769 +(parsed and ignored). Note: The navigator parser doesn't expand entities
1.770 +in a <B>SERVER </B>tag.</UL>
1.771 +<B>SPACER</B>
1.772 +<UL>Close tag is ignored. Open tag provides whitespace during layout: <B>TYPE</B>=line/vert/vertical
1.773 +causes a conditional soft line break and then adds <B>SIZE </B>to the Y
1.774 +layout coordinate. <B>TYPE</B>=word causes a conditional soft word break
1.775 +and then adds <B>SIZE </B>to the X layout coordinate. <B>TYPE</B>=block
1.776 +causes <FONT COLOR="#DD0000">blockish </FONT>layout stuff to happen.
1.777 +<BR>Attributes:
1.778 +<UL><B>TYPE</B>=line | vert | vertical | block (default: word)
1.779 +<UL><B>ALIGN</B>=alignparam (these 3 params are only for <B>TYPE</B>=block)
1.780 +<BR><B>WIDTH</B>=value-or-pct
1.781 +<BR><B>HEIGHT</B>=value-or-pct</UL>
1.782 +<B>SIZE</B>=int [clampled: >= 0]</UL>
1.783 +</UL>
1.784 +
1.785 +<H3>
1.786 +
1.787 +<HR ALIGN=LEFT WIDTH="50%"></H3>
1.788 +<B>SCRIPT</B>
1.789 +<UL>Note: The navigator parser doesn't expand entities in a SCRIPT tag.
1.790 +<BR>Attributes:
1.791 +<UL><B>LANGUAGE</B>=LiveScript | Mocha | JavaScript1.1 | JavaScript1.2
1.792 +<BR><B>TYPE</B>="text/javascript" | "text/css"
1.793 +<BR><B>HREF</B>=url
1.794 +<BR><B>ARCHIVE</B>=url
1.795 +<BR><B>CODEBASE</B>=url
1.796 +<BR><B>ID</B>=string
1.797 +<BR><B>SRC</B>=url</UL>
1.798 +</UL>
1.799 +<B>NOSCRIPT</B>
1.800 +<UL>Used when scripting is off or by backrev browsers. It is a container
1.801 +that has no stylistic consequences.</UL>
1.802 +
1.803 +<H3>
1.804 +
1.805 +<HR ALIGN=LEFT WIDTH="50%"></H3>
1.806 +<B>FORM </B>
1.807 +<UL>Attributes:
1.808 +<UL><B>ACTION</B>=href
1.809 +<BR><B>ENCODING</B>=string
1.810 +<BR><B>TARGET</B>=string
1.811 +<BR><B>METHOD</B>=get | post</UL>
1.812 +</UL>
1.813 +<B>ISINDEX </B>
1.814 +<UL>This tag is a shortcut for creating a form element with a submit button
1.815 +and a single text field. If the PROMPT attribute is not present in the
1.816 +tag then the value used is <B>"This is a searchable index. Enter search
1.817 +keywords:"</B>.
1.818 +
1.819 +<P>Attributes:
1.820 +<UL><B>PROMPT</B>=string
1.821 +<BR><B>ACTION</B>=href
1.822 +<BR><B>ENCODING</B>=string
1.823 +<BR><B>TARGET</B>=string
1.824 +<BR><B>METHOD</B>=get | post</UL>
1.825 +</UL>
1.826 +<B>INPUT </B>
1.827 +<UL>Attributes vary according to type:
1.828 +<UL><B>TYPE</B>= text | radio | checkbox | hidden | submit | reset | password
1.829 +| button | image | file | jot | readonly | object
1.830 +<BR><B>NAME</B>= string
1.831 +<BR> </UL>
1.832 +<B>TYPE</B>=image
1.833 +<UL>attributes are from the IMG tag (!)</UL>
1.834 +<B>TYPE</B>= text | password | file
1.835 +<UL>font style is forced to fixed
1.836 +<BR><B>VALUE</B>= string
1.837 +<BR><B>SIZE</B>= int (clamped; >= 1)
1.838 +<BR><B>MAXLENGTH</B>= int (not clamped!)</UL>
1.839 +<B>TYPE</B>= submit | reset | button | hidden | readonly
1.840 +<UL><B>VALUE</B>=string; default if no value to the attribute varies according
1.841 +to the type:
1.842 +<UL><B>submit</B> -> "Submit Query"
1.843 +<BR><B>reset</B> -> "Reset"
1.844 +<BR>others -> " " (2 spaces)
1.845 +<BR>Note also that the value has newlines stripped from it</UL>
1.846 +<B>WIDTH</B>=int (clamped >=0 && <= 1000) (only for submit,
1.847 +reset or button)
1.848 +<BR><B>HEIGHT</B>=int (clamped >=0 && <= 1000) (only for submit,
1.849 +reset or button)</UL>
1.850 +<B>TYPE</B>=radio | checkbox
1.851 +<UL><B>CHECKED</B> (flag - if present then set to true)
1.852 +<BR><B>VALUE</B>= string (the default value is "on")</UL>
1.853 +</UL>
1.854 +<B>SELECT </B>
1.855 +<UL>Attributes:
1.856 +<UL><B>MULTIPLE</B> (boolean)
1.857 +<BR><B>SIZE</B>= int (clamped >= 1)
1.858 +<BR><B>NAME=</B> string
1.859 +<BR><B>WIDTH</B>= int (clampled >= 0 && <= 1000)
1.860 +<BR><B>HEIGHT</B>= int (clamped >= 0 && <= 1000; only examined
1.861 +for single entry lists (!multiple || size==1))</UL>
1.862 +</UL>
1.863 +<B>OPTION </B>
1.864 +<UL>Lives inside the SELECT tag (ignored otherwise).
1.865 +<BR>Attributes:
1.866 +<UL><B>VALUE</B>=string
1.867 +<BR><B>SELECTED</B> boolean</UL>
1.868 +</UL>
1.869 +<B>TEXTAREA </B>
1.870 +<UL>Attributes:
1.871 +<UL><B>NAME</B>=string
1.872 +<BR><B>ROWS</B>=int (clamped; >= 1)
1.873 +<BR><B>COLS</B>=int (clamped; >= 1)
1.874 +<BR><B>WRAP</B>= off | hard | soft (default is off; any value which is
1.875 +not known turns into soft)</UL>
1.876 +</UL>
1.877 +<B>KEYGEN </B>
1.878 +<UL>Attributes:
1.879 +<UL><B>NAME</B>=string
1.880 +<BR><B>CHALLENGE</B>=string
1.881 +<BR><B>PQG</B>=string
1.882 +<BR><B>KEYTYPE</B>=string</UL>
1.883 +</UL>
1.884 +
1.885 +<H3>
1.886 +
1.887 +<HR ALIGN=LEFT WIDTH="50%"></H3>
1.888 +<B>BASEFONT </B>
1.889 +<UL>Sets the base font value which +/- size values in FONT tags are relative
1.890 +to.
1.891 +<BR>Attributes:
1.892 +<UL>SIZE=+ int | - int | int (just like FONT)</UL>
1.893 +</UL>
1.894 +
1.895 +<H2>
1.896 +
1.897 +<HR WIDTH="100%">Unsupported</H2>
1.898 +<B>NSCP_CLOSE, NSCP_OPEN, NSCP_REBLOCK, MQUOTE, CELL, SUBDOC, CERTIFICATE,
1.899 +INLINEINPUTTHICK, INLINEINPUTDOTTED, COLORMAP, HYPE, SPELL, NSDT</B>
1.900 +<UL>These tags are unsupported because they are used internally by netscape
1.901 +and are never seen in real content. If somebody does use them between 4.0
1.902 +and magellan, tough beans. We never documented them so they lose.</UL>
1.903 +
1.904 +</BODY>
1.905 +</HTML>
