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Appendix A HTML Grammar |
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Appendix A HTML Grammar |
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The grammar is a composite of the HTML 2.0 standard tags and special extensions to the language as enabled by the latest versions of NCSA Mosaic, Netscape Communication's Netscape Navigator, and Microsoft's Internet Explorer.
The rules are in alphabetical order. The starting rule for an entire document is named html_document.
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a_tag |
::= |
<a> |
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{a_content }0 |
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</a> |
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a_content |
::= |
heading |
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text |
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address_tag |
::= |
<address> |
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{address_content }0 |
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</address> |
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address_content |
::= |
p_tag |
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text |
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applet_content |
::= |
{<param>}0 |
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body_content |
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applet_tag |
::= |
<applet> |
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applet_content |
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</applet> |
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| a_content may not contain a_tags; you may not nest <a> tags within other <a> tags. | ||
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b_tag |
::= |
<b> text </b> |
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basefont_tag |
::= |
<basefont> |
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body_content |
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</basefont> |
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big_tag |
::= |
<big> text</big> |
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blink_tag |
::= |
<blink> text</blink> |
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block |
::= |
{block_content }0 |
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block_content |
::= |
<isindex> |
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basefont_tag |
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blockquote_tag |
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center_tag |
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dir_tag |
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div_tag |
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dl_tag |
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form_tag |
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listing_tag |
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menu_tag |
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multicol_tag |
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nobr_tag |
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ol_tag |
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p_tag |
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pre_tag |
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table_tag |
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ul_tag |
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xmp_tag |
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blockquote_tag |
::= |
<blockquote> |
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body_content |
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</blockquote> |
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body_content |
::= |
<bgsound> |
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<hr> |
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address_tag |
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block |
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heading |
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layer_tag |
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map_tag |
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marquee_tag |
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text |
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body_tag |
::= |
<body> |
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{body_content }0 |
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</body> |
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caption_tag |
::= |
<caption> |
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body_content |
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</caption> |
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center_tag |
::= |
<center> |
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body_content |
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</center> |
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cite_tag |
::= |
<cite> text </cite> |
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code_tag |
::= |
<code> text </code> |
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colgroup_content |
::= |
{<col>}0 |
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colgroup_tag |
::= |
<colgroup> |
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colgroup_content |
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content_style |
::= |
cite_tag |
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code_tag |
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dfn_tag |
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em_tag |
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kbd_tag |
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samp_tag |
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strong_tag |
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var_tag |
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dd_tag |
::= |
<dd> |
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flow |
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</dd> |
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dfn_tag |
::= |
<dfn> text </dfn> |
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dir_tag |
::= |
<dir> |
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{ li_tag } |
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</dir> |
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div_tag |
::= |
<div> |
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body_content |
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</div> |
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dl_content |
::= |
dt_tag dd_tag |
| The li_tag within the dir_tag may not contain any element found in a block. | ||
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dl_tag |
::= |
<dl> |
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{dl_content } |
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</dl> |
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dt_tag |
::= |
<dt> |
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text |
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</dt> |
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em_tag |
::= |
<em> text </em> |
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flow |
::= |
{flow_content }0 |
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flow_content |
::= |
block |
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text |
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font_tag |
::= |
<font> style_text </font> |
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form_content |
::= |
<input> |
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<keygen> |
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body_content |
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select_tag |
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textarea_tag |
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form_tag |
::= |
<form> |
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{form_content }0 |
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</form> |
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frameset_content |
::= |
<frame> |
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noframes_tag |
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frameset_tag |
::= |
<frameset> |
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{frameset_content }0 |
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</frameset> |
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h1_tag |
::= |
<h1> text </h1> |
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h2_tag |
::= |
<h2> text </h2> |
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h3_tag |
::= |
<h3> text </h3> |
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h4_tag |
::= |
<h4> text </h4> |
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h5_tag |
::= |
<h5> text </h5> |
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h6_tag |
::= |
<h6> text </h6> |
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head_content |
::= |
<base> |
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<isindex> |
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<link> |
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<meta> |
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<nextid> |
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| form_content may not contain form_tags; you may not nest one <form> within another <form>. | ||
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style_tag |
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title_tag |
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head_tag |
::= |
<head> |
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{head_content }0 |
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</head> |
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heading |
::= |
h1_tag |
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h2_tag |
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h3_tag |
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h4_tag |
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h5_tag |
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h6_tag |
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html_content |
::= |
head_tag body_tag |
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head_tag frameset_tag |
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html_document |
::= |
html_tag |
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html_tag |
::= |
<html> |
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html_content |
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</html> |
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i_tag |
::= |
<i> text </i> |
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ilayer_tag |
::= |
<ilayer> |
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body_content |
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</ilayer> |
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kbd_tag |
::= |
<kbd> text </kbd> |
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layer_tag |
::= |
<layer> |
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body_content |
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</layer> |
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li_tag |
::= |
<li> |
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flow |
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</li> |
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listing_tag |
::= |
<listing> |
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literal_text |
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</listing> |
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map_content |
::= |
{<area>}0 |
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map_tag |
::= |
<map> |
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map_content |
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</map> |
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marquee_tag |
::= |
<marquee> |
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style_text |
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</marquee> |
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menu_tag |
::= |
<menu> |
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{li_tag }0 |
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</menu> |
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multicol_tag |
::= |
<multicol> |
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body_content |
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</multicol> |
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nobr_tag |
::= |
<nobr> text </nobr> |
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noembed_tag |
::= |
<noembed> text </noembed> |
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noframes_tag |
::= |
<noframes> |
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{body_content }0 |
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</noframes> |
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noscript_tag |
::= |
<noscript> text </noscript> |
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object_content |
::= |
{<param>}0 |
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body_content |
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object_tag |
::= |
<object> |
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object_content |
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</object> |
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ol_tag |
::= |
<ol> |
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{li_tag } |
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</ol> |
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option_tag |
::= |
<option> |
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plain_text |
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</option> |
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p_tag |
::= |
<p> |
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text |
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</p> |
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physical_style |
::= |
b_tag |
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big_tag |
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blink_tag |
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font_tag |
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i_tag |
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s_tag |
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small_tag |
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span_tag |
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| The li_tag within the menu_tag may not contain any element found in a block. | ||
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strike_tag |
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sub_tag |
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sup_tag |
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tt_tag |
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u_tag |
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pre_content |
::= |
<br> |
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<hr> |
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a_tag |
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style_text |
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pre_tag |
::= |
<pre> |
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{pre_content }0 |
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</pre> |
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s_tag |
::= |
<s> text </s> |
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samp_tag |
::= |
<samp> text </samp> |
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script_tag |
::= |
<script> plain_text </script> |
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select_tag |
::= |
<select> |
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{option_tag } |
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</select> |
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server_tag |
::= |
<server> plain_text </server> |
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small_tag |
::= |
<small> text </small> |
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span_tag |
::= |
<span> text </span> |
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strike_tag |
::= |
<strike> text </strike> |
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strong_tag |
::= |
<strong> text </strong> |
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style_tag |
::= |
<style> plain_text </style> |
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sub_tag |
::= |
<sub> text </sub> |
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sup_tag |
::= |
<sup> text </sup> |
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table_cell |
::= |
td_tag |
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th_tag |
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table_content |
::= |
<tbody> |
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<tfoot> |
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<thead> |
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tr_tag |
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| A script_tag may be placed anywhere within an HTML document, without regard to syntactic rules.A server_tag may be placed anywhere within an HTML document, without regard to syntactic rules. | ||
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table_tag |
::= |
<table> |
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[caption_tag ] |
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{colgroup_tag }0 |
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{table_content }0 |
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</table> |
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td_tag |
::= |
<td> |
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body_content |
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</td> |
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text |
::= |
{text_content }0 |
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text_content |
::= |
<br> |
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<embed> |
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<iframe> |
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<img> |
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<spacer> |
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<wbr> |
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a_tag |
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applet_tag |
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content_style |
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ilayer_tag |
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noembed_tag |
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noscript_tag |
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object_tag |
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plain_text |
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physical_style |
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textarea_tag |
::= |
<textarea> plain_text </textarea> |
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th_tag |
::= |
<th> |
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body_content |
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</th> |
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title_tag |
::= |
<title> plain_text </title> |
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tr_tag |
::= |
<tr> |
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{table_cell }0 |
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</tr> |
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tt_tag |
::= |
<tt> text </tt> |
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u_tag |
::= |
<u> text </u> |
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ul_tag |
::= |
<ul> |
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{li_tag } |
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</ul> |
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var_tag |
::= |
<var> text </var> |
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xmp_tag |
::= |
<xmp> |
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literal_text |
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</xmp> |
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| Grammatical Conventions |  |
HTML Tag Quick Reference |
| This HTML Help has been published using the chm2web software. |