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URL: /api/lexer/classifiers/html/
Section: classifiers

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Implements CommonMark 4.6 HTML block types 1-7. Mixin providing HTML block classification. Implements CommonMark 4.6 HTML block types 1-7. Attributes Name Type Description _mode LexerMode — _html_block_type int — _html_block_content list[str] — _html_block_start int — _html_block_indent int — _pos int — _source_len int — _consumed_newline bool — Methods Internal Methods 6 ▼ _location_from 3 SourceLocation ▼ Get source location from saved position. Implemented by Lexer. def _location_from(self, start_pos: int, start_col: int | None = None, end_pos: int | None = None) -&gt; SourceLocation Parameters Name Type Description start_pos — start_col — Default: None end_pos — Default: None Returns SourceLocation _try_classify_html_block_start 4 Iterator[Token] | None ▼ Try to classify content as HTML block start. CommonMark 4.6 defines 7 types of… def _try_classify_html_block_start(self, content: str, line_start: int, full_line: str, indent: int = 0) -&gt; Iterator[Token] | None Try to classify content as HTML block start. CommonMark 4.6 defines 7 types of HTML blocks. Parameters Name Type Description content — Line content with leading whitespace stripped line_start — Position in source where line starts full_line — The full line including leading whitespace indent — Number of leading spaces (for line_indent) Default: 0 Returns Iterator[Token] | None Iterator yielding HTML_BLOCK token, or None if not HTML block. _extract_html_tag_name 1 str | None ▼ Extract tag name from HTML opening or closing tag. def _extract_html_tag_name(self, content: str) -&gt; str | None Parameters Name Type Description content — Line content starting with &lt; Returns str | None Tag name if found, None otherwise. _is_complete_html_tag 1 bool ▼ Check if content is a complete single HTML open/close tag. Type 7 HTML blocks … def _is_complete_html_tag(self, content: str) -&gt; bool Check if content is a complete single HTML open/close tag. Type 7 HTML blocks require a SINGLE complete tag that's the only content on line. This means: , , , or - NOT content. The tag name must also NOT be one of the type 6 block-level tags. Must not match autolinks like http://... or email@domain. CommonMark strict attribute validation: Attribute name: [a-zA-Z_:][a-zA-Z0-9_.:-]* Attribute value: unquoted (no special chars), 'single', or &quot;double&quot; quoted Space required between attributes (but not after final attribute before &gt; or /&gt;) Parameters Name Type Description content — Line content Returns bool True if this is a complete HTML tag. _validate_html_attributes 1 bool ▼ Validate HTML attribute string per CommonMark spec. def _validate_html_attributes(self, attrs_str: str) -&gt; bool Parameters Name Type Description attrs_str — The portion after tag name and before &gt; (without leading ) Returns bool True if attributes are valid per CommonMark 6.8. _emit_html_block 0 Iterator[Token] ▼ Emit accumulated HTML block as a single token. def _emit_html_block(self) -&gt; Iterator[Token] Returns Iterator[Token] ← Previous heading Next → link_ref List &copy; 2026 Patitas built in ᓚᘏᗢ { "linkPreviews": { "enabled": true, "hoverDelay": 200, "hideDelay": 150, "showSection": true, "showReadingTime": true, "showWordCount": true, "showDate": true, "showTags": true, "maxTags": 3, "includeSelectors": [".prose"], "excludeSelectors": ["nav", ".toc", ".breadcrumb", ".pagination", ".card", "[class*='-card']", ".tab-nav", "[class*='-widget']", ".child-items", ".content-tiles"], "allowedHosts": [], "allowedSchemes": ["https"], "hostFailureThreshold": 3 } } window.BENGAL_LAZY_ASSETS = { tabulator: '/patitas/assets/js/tabulator.min.js', dataTable: '/patitas/assets/js/data-table.js', mermaidToolbar: '/patitas/assets/js/mermaid-toolbar.9de5abba.js', mermaidTheme: '/patitas/assets/js/mermaid-theme.344822c5.js', graphMinimap: '/patitas/assets/js/graph-minimap.ff04e939.js', graphContextual: '/patitas/assets/js/graph-contextual.355458ba.js' }; window.BENGAL_ICONS = { close: '/patitas/assets/icons/close.911d4fe1.svg', enlarge: '/patitas/assets/icons/enlarge.652035e5.svg', copy: '/patitas/assets/icons/copy.3d56e945.svg', 'download-svg': '/patitas/assets/icons/download.04f07e1b.svg', 'download-png': '/patitas/assets/icons/image.c34dfd40.svg', 'zoom-in': '/patitas/assets/icons/zoom-in.237b4a83.svg', 'zoom-out': '/patitas/assets/icons/zoom-out.38857c77.svg', reset: '/patitas/assets/icons/reset.d26dba29.svg' }; Arrow Up

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