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authorLibravatarLibravatar Biswakalyan Bhuyan <biswa@surgot.in> 2022-11-13 23:46:45 +0530
committerLibravatarLibravatar Biswakalyan Bhuyan <biswa@surgot.in> 2022-11-13 23:46:45 +0530
commit9468226a9e2e2ab8cdd599f1d8538e860ca86120 (patch)
tree0a77ada226d6db80639f96b438bf83e4e756edb5 /env/lib/python3.10/site-packages/lxml/html/defs.py
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+# FIXME: this should all be confirmed against what a DTD says
+# (probably in a test; this may not match the DTD exactly, but we
+# should document just how it differs).
+
+"""
+Data taken from https://www.w3.org/TR/html401/index/elements.html
+and https://www.w3.org/community/webed/wiki/HTML/New_HTML5_Elements
+for html5_tags.
+"""
+
+empty_tags = frozenset([
+ 'area', 'base', 'basefont', 'br', 'col', 'frame', 'hr',
+ 'img', 'input', 'isindex', 'link', 'meta', 'param', 'source', 'track'])
+
+deprecated_tags = frozenset([
+ 'applet', 'basefont', 'center', 'dir', 'font', 'isindex',
+ 'menu', 's', 'strike', 'u'])
+
+# archive actually takes a space-separated list of URIs
+link_attrs = frozenset([
+ 'action', 'archive', 'background', 'cite', 'classid',
+ 'codebase', 'data', 'href', 'longdesc', 'profile', 'src',
+ 'usemap',
+ # Not standard:
+ 'dynsrc', 'lowsrc',
+ # HTML5 formaction
+ 'formaction'
+ ])
+
+# Not in the HTML 4 spec:
+# onerror, onresize
+event_attrs = frozenset([
+ 'onblur', 'onchange', 'onclick', 'ondblclick', 'onerror',
+ 'onfocus', 'onkeydown', 'onkeypress', 'onkeyup', 'onload',
+ 'onmousedown', 'onmousemove', 'onmouseout', 'onmouseover',
+ 'onmouseup', 'onreset', 'onresize', 'onselect', 'onsubmit',
+ 'onunload',
+ ])
+
+safe_attrs = frozenset([
+ 'abbr', 'accept', 'accept-charset', 'accesskey', 'action', 'align',
+ 'alt', 'axis', 'border', 'cellpadding', 'cellspacing', 'char', 'charoff',
+ 'charset', 'checked', 'cite', 'class', 'clear', 'cols', 'colspan',
+ 'color', 'compact', 'coords', 'datetime', 'dir', 'disabled', 'enctype',
+ 'for', 'frame', 'headers', 'height', 'href', 'hreflang', 'hspace', 'id',
+ 'ismap', 'label', 'lang', 'longdesc', 'maxlength', 'media', 'method',
+ 'multiple', 'name', 'nohref', 'noshade', 'nowrap', 'prompt', 'readonly',
+ 'rel', 'rev', 'rows', 'rowspan', 'rules', 'scope', 'selected', 'shape',
+ 'size', 'span', 'src', 'start', 'summary', 'tabindex', 'target', 'title',
+ 'type', 'usemap', 'valign', 'value', 'vspace', 'width'])
+
+# From http://htmlhelp.com/reference/html40/olist.html
+top_level_tags = frozenset([
+ 'html', 'head', 'body', 'frameset',
+ ])
+
+head_tags = frozenset([
+ 'base', 'isindex', 'link', 'meta', 'script', 'style', 'title',
+ ])
+
+general_block_tags = frozenset([
+ 'address',
+ 'blockquote',
+ 'center',
+ 'del',
+ 'div',
+ 'h1',
+ 'h2',
+ 'h3',
+ 'h4',
+ 'h5',
+ 'h6',
+ 'hr',
+ 'ins',
+ 'isindex',
+ 'noscript',
+ 'p',
+ 'pre',
+ ])
+
+list_tags = frozenset([
+ 'dir', 'dl', 'dt', 'dd', 'li', 'menu', 'ol', 'ul',
+ ])
+
+table_tags = frozenset([
+ 'table', 'caption', 'colgroup', 'col',
+ 'thead', 'tfoot', 'tbody', 'tr', 'td', 'th',
+ ])
+
+# just this one from
+# http://www.georgehernandez.com/h/XComputers/HTML/2BlockLevel.htm
+block_tags = general_block_tags | list_tags | table_tags | frozenset([
+ # Partial form tags
+ 'fieldset', 'form', 'legend', 'optgroup', 'option',
+ ])
+
+form_tags = frozenset([
+ 'form', 'button', 'fieldset', 'legend', 'input', 'label',
+ 'select', 'optgroup', 'option', 'textarea',
+ ])
+
+special_inline_tags = frozenset([
+ 'a', 'applet', 'basefont', 'bdo', 'br', 'embed', 'font', 'iframe',
+ 'img', 'map', 'area', 'object', 'param', 'q', 'script',
+ 'span', 'sub', 'sup',
+ ])
+
+phrase_tags = frozenset([
+ 'abbr', 'acronym', 'cite', 'code', 'del', 'dfn', 'em',
+ 'ins', 'kbd', 'samp', 'strong', 'var',
+ ])
+
+font_style_tags = frozenset([
+ 'b', 'big', 'i', 's', 'small', 'strike', 'tt', 'u',
+ ])
+
+frame_tags = frozenset([
+ 'frameset', 'frame', 'noframes',
+ ])
+
+html5_tags = frozenset([
+ 'article', 'aside', 'audio', 'canvas', 'command', 'datalist',
+ 'details', 'embed', 'figcaption', 'figure', 'footer', 'header',
+ 'hgroup', 'keygen', 'mark', 'math', 'meter', 'nav', 'output',
+ 'progress', 'rp', 'rt', 'ruby', 'section', 'source', 'summary',
+ 'svg', 'time', 'track', 'video', 'wbr'
+ ])
+
+# These tags aren't standard
+nonstandard_tags = frozenset(['blink', 'marquee'])
+
+
+tags = (top_level_tags | head_tags | general_block_tags | list_tags
+ | table_tags | form_tags | special_inline_tags | phrase_tags
+ | font_style_tags | nonstandard_tags | html5_tags)