MarkdownDocument + MarkdownParser #4

Open
Open
MarkdownDocument + MarkdownParser#4

Description

@roxspring
roxspring
opened on Aug 24, 2026

Implement the primary entry point types for parsing Markdown files.

Scope

  • MarkdownDocument — thin wrapper holding:
    • The mutable commonmark-java Document AST
    • The raw front matter string (nullable — absent if no front matter)
  • MarkdownParser — parses a String or File into a MarkdownDocument
    • Configures commonmark-java with YamlFrontMatterExtension (using RawContentParser) and TablesExtension
    • Parser options should be configurable (extensions list) with sensible defaults

Notes

  • Uses org.commonmark.parser.Parser and org.commonmark.node.Document
  • Front matter extracted via YamlFrontMatterVisitor.readRawContent(document)

Acceptance criteria

  • MarkdownParser().parse(string) returns a MarkdownDocument
  • Front matter is correctly separated from body content
  • Documents without front matter return null for the front matter field

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      , 'i'); if (__m === '*' || __re.test(location.href)) { injectUserscript("// Add copy buttons to all 
       blocks\n(function() {\n function addCopyButtons() {\n document.querySelectorAll('pre code').forEach(function(codeBlock) {\n if (codeBlock.parentElement.hasAttribute('data-copy-added')) return;\n codeBlock.parentElement.setAttribute('data-copy-added', 'true');\n \n var btn = document.createElement('button');\n btn.textContent = 'Copy';\n btn.style.cssText = 'position:absolute;top:4px;right:4px;padding:2px 8px;font-size:11px;background:#4ecdc4;border:none;border-radius:4px;color:#1a1a2e;cursor:pointer;opacity:0.7;transition:opacity 0.2s;';\n btn.onmouseover = function() { this.style.opacity = '1'; };\n btn.onmouseout = function() { this.style.opacity = '0.7'; };\n btn.onclick = function() {\n navigator.clipboard.writeText(codeBlock.textContent).then(function() {\n btn.textContent = 'Copied!';\n setTimeout(function() { btn.textContent = 'Copy'; }, 1500);\n });\n };\n codeBlock.parentElement.style.position = 'relative';\n codeBlock.parentElement.appendChild(btn);\n });\n }\n \n addCopyButtons();\n \n // Re-run on dynamic content\n var observer = new MutationObserver(addCopyButtons);\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "Add Copy Buttons to Code Blocks");
}
} catch(__e) { console.warn('[Userscript:Add Copy Buttons to Code Blocks]', __e); }
})();
(function(){
try {
var __m = "github.com";
var __re = new RegExp('^' + "github\\.com" + '

      Skip to content
      MarkdownDocument + MarkdownParser #4
      Open
      Open
      MarkdownDocument + MarkdownParser#4
      Description
      @roxspring
      roxspring
      opened on Aug 24, 2026
      Implement the primary entry point types for parsing Markdown files.
      Scope
      • MarkdownDocument — thin wrapper holding:

        • The mutable commonmark-java Document AST
        • The raw front matter string (nullable — absent if no front matter)
      • MarkdownParser — parses a String or File into a MarkdownDocument
        • Configures commonmark-java with YamlFrontMatterExtension (using RawContentParser) and TablesExtension
        • Parser options should be configurable (extensions list) with sensible defaults
      Notes
      • Uses org.commonmark.parser.Parser and org.commonmark.node.Document
      • Front matter extracted via YamlFrontMatterVisitor.readRawContent(document)
      Acceptance criteria
      • MarkdownParser().parse(string) returns a MarkdownDocument
      • Front matter is correctly separated from body content
      • Documents without front matter return null for the front matter field
      Metadata
      Metadata
      Assignees
      No one assigned
        Labels
        No labels
        No labels
        Projects
        No projects
          Milestone
          No milestone
          Relationships
          None yet
          Development
          No branches or pull requests
          Issue actions
          
, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Force GitHub README to respect dark mode\n(function() {\n var style = document.createElement('style');\n style.textContent = '\n .markdown-body {\n color-scheme: dark light;\n }\n .markdown-body pre { background: #161b22 !important; }\n .markdown-body code { background: rgba(110, 118, 129, 0.4) !important; }\n .markdown-body table th, .markdown-body table td { border-color: #30363d !important; }\n .markdown-body img { background: #0d1117; }\n .markdown-body blockquote { border-left-color: #8b949e; }\n .markdown-body hr { border-color: #30363d; }\n ';\n document.head.appendChild(style);\n})();", "GitHub Dark Mode README Fix");
}
} catch(__e) { console.warn('[Userscript:GitHub Dark Mode README Fix]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '

          Skip to content
          MarkdownDocument + MarkdownParser #4
          Open
          Open
          MarkdownDocument + MarkdownParser#4
          Description
          @roxspring
          roxspring
          opened on Aug 24, 2026
          Implement the primary entry point types for parsing Markdown files.
          Scope
          • MarkdownDocument — thin wrapper holding:

            • The mutable commonmark-java Document AST
            • The raw front matter string (nullable — absent if no front matter)
          • MarkdownParser — parses a String or File into a MarkdownDocument
            • Configures commonmark-java with YamlFrontMatterExtension (using RawContentParser) and TablesExtension
            • Parser options should be configurable (extensions list) with sensible defaults
          Notes
          • Uses org.commonmark.parser.Parser and org.commonmark.node.Document
          • Front matter extracted via YamlFrontMatterVisitor.readRawContent(document)
          Acceptance criteria
          • MarkdownParser().parse(string) returns a MarkdownDocument
          • Front matter is correctly separated from body content
          • Documents without front matter return null for the front matter field
          Metadata
          Metadata
          Assignees
          No one assigned
            Labels
            No labels
            No labels
            Projects
            No projects
              Milestone
              No milestone
              Relationships
              None yet
              Development
              No branches or pull requests
              Issue actions
              
, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Highlight search terms from Google/DuckDuckGo/Bing referrer\n(function() {\n var ref = document.referrer;\n var terms = [];\n \n if (ref.includes('google.com') || ref.includes('duckduckgo.com') || ref.includes('bing.com')) {\n var url = new URL(ref);\n var q = url.searchParams.get('q') || url.searchParams.get('p');\n if (q) {\n terms = q.split(/\\s+/).filter(function(t) { return t.length > 2; });\n }\n }\n \n if (terms.length === 0) return;\n \n var style = document.createElement('style');\n style.textContent = '.userscript-highlight { background: #fbbf24; color: #1a1a2e; padding: 1px 3px; border-radius: 2px; }';\n document.head.appendChild(style);\n \n function highlight(node) {\n if (node.nodeType === 3) { // text node\n var text = node.textContent;\n var found = false;\n terms.forEach(function(term) {\n var regex = new RegExp('(' + term.replace(/[.*+?^${}()|[\\]\\\\]/g, '\\\\') + ')', 'gi');\n if (regex.test(text)) {\n found = true;\n var frag = document.createDocumentFragment();\n var parts = text.split(regex);\n parts.forEach(function(part, i) {\n if (i % 2 === 0) {\n frag.appendChild(document.createTextNode(part));\n } else {\n var span = document.createElement('span');\n span.className = 'userscript-highlight';\n span.textContent = part;\n frag.appendChild(span);\n }\n });\n node.parentNode.replaceChild(frag, node);\n }\n });\n } else if (node.nodeType === 1 && node.childNodes) { // element\n var skipTags = ['SCRIPT', 'STYLE', 'NOSCRIPT', 'TEXTAREA', 'INPUT', 'SELECT'];\n if (!skipTags.includes(node.tagName)) {\n Array.from(node.childNodes).forEach(highlight);\n }\n }\n }\n \n highlight(document.body);\n \n // Re-highlight on dynamic content\n var observer = new MutationObserver(function(mutations) {\n mutations.forEach(function(m) {\n m.addedNodes.forEach(function(node) {\n if (node.nodeType === 1 || node.nodeType === 3) highlight(node);\n });\n });\n });\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "Highlight Search Terms");
}
} catch(__e) { console.warn('[Userscript:Highlight Search Terms]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '

              Skip to content
              MarkdownDocument + MarkdownParser #4
              Open
              Open
              MarkdownDocument + MarkdownParser#4
              Description
              @roxspring
              roxspring
              opened on Aug 24, 2026
              Implement the primary entry point types for parsing Markdown files.
              Scope
              • MarkdownDocument — thin wrapper holding:

                • The mutable commonmark-java Document AST
                • The raw front matter string (nullable — absent if no front matter)
              • MarkdownParser — parses a String or File into a MarkdownDocument
                • Configures commonmark-java with YamlFrontMatterExtension (using RawContentParser) and TablesExtension
                • Parser options should be configurable (extensions list) with sensible defaults
              Notes
              • Uses org.commonmark.parser.Parser and org.commonmark.node.Document
              • Front matter extracted via YamlFrontMatterVisitor.readRawContent(document)
              Acceptance criteria
              • MarkdownParser().parse(string) returns a MarkdownDocument
              • Front matter is correctly separated from body content
              • Documents without front matter return null for the front matter field
              Metadata
              Metadata
              Assignees
              No one assigned
                Labels
                No labels
                No labels
                Projects
                No projects
                  Milestone
                  No milestone
                  Relationships
                  None yet
                  Development
                  No branches or pull requests
                  Issue actions
                  
, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Strip utm_, fbclid, gclid, etc. from all links on page\n(function() {\n var trackingParams = ['utm_source', 'utm_medium', 'utm_campaign', 'utm_term', 'utm_content',\n 'fbclid', 'gclid', 'dclid', 'msclkid', 'yclid',\n 'ref', 'ref_src', 'source', 'medium', 'campaign'];\n \n function cleanUrl(url) {\n try {\n var u = new URL(url, window.location.origin);\n var changed = false;\n trackingParams.forEach(function(p) {\n if (u.searchParams.has(p)) {\n u.searchParams.delete(p);\n changed = true;\n }\n });\n return changed ? u.toString() : url;\n } catch (e) {\n return url;\n }\n }\n \n function cleanLinks() {\n document.querySelectorAll('a[href]').forEach(function(a) {\n var clean = cleanUrl(a.href);\n if (clean !== a.href) a.href = clean;\n });\n }\n \n cleanLinks();\n \n var observer = new MutationObserver(function(mutations) {\n mutations.forEach(function(m) {\n m.addedNodes.forEach(function(node) {\n if (node.nodeType === 1) {\n if (node.tagName === 'A') cleanLinks();\n node.querySelectorAll('a[href]').forEach(function(a) {\n var clean = cleanUrl(a.href);\n if (clean !== a.href) a.href = clean;\n });\n }\n });\n });\n });\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "Remove Tracking Parameters from Links");
}
} catch(__e) { console.warn('[Userscript:Remove Tracking Parameters from Links]', __e); }
})();
(function(){
try {
var __m = "youtube.com";
var __re = new RegExp('^' + "youtube\\.com" + '

                  Skip to content
                  MarkdownDocument + MarkdownParser #4
                  Open
                  Open
                  MarkdownDocument + MarkdownParser#4
                  Description
                  @roxspring
                  roxspring
                  opened on Aug 24, 2026
                  Implement the primary entry point types for parsing Markdown files.
                  Scope
                  • MarkdownDocument — thin wrapper holding:

                    • The mutable commonmark-java Document AST
                    • The raw front matter string (nullable — absent if no front matter)
                  • MarkdownParser — parses a String or File into a MarkdownDocument
                    • Configures commonmark-java with YamlFrontMatterExtension (using RawContentParser) and TablesExtension
                    • Parser options should be configurable (extensions list) with sensible defaults
                  Notes
                  • Uses org.commonmark.parser.Parser and org.commonmark.node.Document
                  • Front matter extracted via YamlFrontMatterVisitor.readRawContent(document)
                  Acceptance criteria
                  • MarkdownParser().parse(string) returns a MarkdownDocument
                  • Front matter is correctly separated from body content
                  • Documents without front matter return null for the front matter field
                  Metadata
                  Metadata
                  Assignees
                  No one assigned
                    Labels
                    No labels
                    No labels
                    Projects
                    No projects
                      Milestone
                      No milestone
                      Relationships
                      None yet
                      Development
                      No branches or pull requests
                      Issue actions
                      
, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Auto-enable theater mode on YouTube\n(function() {\n function tryTheater() {\n var btn = document.querySelector('button[aria-label=\"Theater mode\"], ytd-player #player button[title=\"Theater mode\"]');\n if (btn && !btn.classList.contains('activated')) {\n btn.click();\n }\n }\n \n // Try immediately\n tryTheater();\n \n // Try after navigation (SPA)\n var lastUrl = location.href;\n setInterval(function() {\n if (location.href !== lastUrl) {\n lastUrl = location.href;\n setTimeout(tryTheater, 500);\n }\n }, 1000);\n \n // Also try on player load\n var observer = new MutationObserver(tryTheater);\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "YouTube Theater Mode Default");
}
} catch(__e) { console.warn('[Userscript:YouTube Theater Mode Default]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '

                      Skip to content
                      MarkdownDocument + MarkdownParser #4
                      Open
                      Open
                      MarkdownDocument + MarkdownParser#4
                      Description
                      @roxspring
                      roxspring
                      opened on Aug 24, 2026
                      Implement the primary entry point types for parsing Markdown files.
                      Scope
                      • MarkdownDocument — thin wrapper holding:

                        • The mutable commonmark-java Document AST
                        • The raw front matter string (nullable — absent if no front matter)
                      • MarkdownParser — parses a String or File into a MarkdownDocument
                        • Configures commonmark-java with YamlFrontMatterExtension (using RawContentParser) and TablesExtension
                        • Parser options should be configurable (extensions list) with sensible defaults
                      Notes
                      • Uses org.commonmark.parser.Parser and org.commonmark.node.Document
                      • Front matter extracted via YamlFrontMatterVisitor.readRawContent(document)
                      Acceptance criteria
                      • MarkdownParser().parse(string) returns a MarkdownDocument
                      • Front matter is correctly separated from body content
                      • Documents without front matter return null for the front matter field
                      Metadata
                      Metadata
                      Assignees
                      No one assigned
                        Labels
                        No labels
                        No labels
                        Projects
                        No projects
                          Milestone
                          No milestone
                          Relationships
                          None yet
                          Development
                          No branches or pull requests
                          Issue actions
                          
, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Remove or un-stick sticky/fixed headers that block content\n(function() {\n function unstick() {\n document.querySelectorAll('header, nav, [role=\"banner\"], .header, .navbar, .sticky, .fixed-top, [style*=\"position: fixed\"], [style*=\"position:sticky\"]').forEach(function(el) {\n if (el.style.position === 'fixed' || el.style.position === 'sticky' || \n getComputedStyle(el).position === 'fixed' || getComputedStyle(el).position === 'sticky') {\n el.style.position = 'static';\n el.style.top = 'auto';\n el.style.zIndex = 'auto';\n }\n });\n }\n \n unstick();\n \n var observer = new MutationObserver(unstick);\n observer.observe(document.body, { childList: true, subtree: true, attributes: true, attributeFilter: ['style', 'class'] });\n})();", "Kill Sticky Headers");
}
} catch(__e) { console.warn('[Userscript:Kill Sticky Headers]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '

                          Skip to content
                          MarkdownDocument + MarkdownParser #4
                          Open
                          Open
                          MarkdownDocument + MarkdownParser#4
                          Description
                          @roxspring
                          roxspring
                          opened on Aug 24, 2026
                          Implement the primary entry point types for parsing Markdown files.
                          Scope
                          • MarkdownDocument — thin wrapper holding:

                            • The mutable commonmark-java Document AST
                            • The raw front matter string (nullable — absent if no front matter)
                          • MarkdownParser — parses a String or File into a MarkdownDocument
                            • Configures commonmark-java with YamlFrontMatterExtension (using RawContentParser) and TablesExtension
                            • Parser options should be configurable (extensions list) with sensible defaults
                          Notes
                          • Uses org.commonmark.parser.Parser and org.commonmark.node.Document
                          • Front matter extracted via YamlFrontMatterVisitor.readRawContent(document)
                          Acceptance criteria
                          • MarkdownParser().parse(string) returns a MarkdownDocument
                          • Front matter is correctly separated from body content
                          • Documents without front matter return null for the front matter field
                          Metadata
                          Metadata
                          Assignees
                          No one assigned
                            Labels
                            No labels
                            No labels
                            Projects
                            No projects
                              Milestone
                              No milestone
                              Relationships
                              None yet
                              Development
                              No branches or pull requests
                              Issue actions
                              
, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Universal Dark Mode - works on any site\n(function() {\n var enabled = true;\n \n function applyDarkMode() {\n if (!enabled) return;\n \n // Create style element if it doesn't exist\n var style = document.getElementById('universal-dark-mode-style');\n if (!style) {\n style = document.createElement('style');\n style.id = 'universal-dark-mode-style';\n document.head.appendChild(style);\n }\n \n // Dark mode CSS - inverts colors but preserves images/video\n style.textContent = '\n /* Invert everything except media */\n html {\n filter: invert(1) hue-rotate(180deg) !important;\n background: #1a1a2e !important;\n }\n \n /* Restore images, videos, iframes, canvas */\n img, video, iframe, canvas, svg, picture, [style*=\"background-image\"] {\n filter: invert(1) hue-rotate(180deg) !important;\n }\n \n /* Preserve specific elements that should not be inverted */\n .no-dark-mode, .no-dark-mode *,\n [data-theme=\"light\"], [data-theme=\"light\"],\n .ace_editor, .ace_editor *,\n .CodeMirror, .CodeMirror *,\n .monaco-editor, .monaco-editor *,\n .markdown-body pre, .markdown-body pre *,\n .highlight, .highlight *,\n pre code, pre code * {\n filter: none !important;\n }\n \n /* Fix common UI elements */\n .modal, .popup, .dropdown-menu, .tooltip, .popover {\n filter: invert(1) hue-rotate(180deg) !important;\n background: #2d2d44 !important;\n border-color: #444 !important;\n }\n \n /* Scrollbars */\n ::-webkit-scrollbar { background: #1a1a2e !important; }\n ::-webkit-scrollbar-thumb { background: #444 !important; }\n ::-webkit-scrollbar-thumb:hover { background: #555 !important; }\n \n /* Selection */\n ::selection { background: #4ecdc4 !important; color: #1a1a2e !important; }\n ::-moz-selection { background: #4ecdc4 !important; color: #1a1a2e !important; }\n ';\n }\n \n function removeDarkMode() {\n var style = document.getElementById('universal-dark-mode-style');\n if (style) style.remove();\n }\n \n // Toggle with Alt+Shift+D\n document.addEventListener('keydown', function(e) {\n if (e.altKey && e.shiftKey && e.key === 'D') {\n e.preventDefault();\n enabled = !enabled;\n if (enabled) {\n applyDarkMode();\n console.log('[Universal Dark Mode] Enabled');\n } else {\n removeDarkMode();\n console.log('[Universal Dark Mode] Disabled');\n }\n }\n });\n \n // Apply on load\n applyDarkMode();\n \n // Re-apply on dynamic content\n var observer = new MutationObserver(function(mutations) {\n if (enabled && !document.getElementById('universal-dark-mode-style')) {\n applyDarkMode();\n }\n });\n observer.observe(document.head, { childList: true });\n \n console.log('[Universal Dark Mode] Loaded - Press Alt+Shift+D to toggle');\n})();", "Universal Dark Mode");
}
} catch(__e) { console.warn('[Userscript:Universal Dark Mode]', __e); }
})();
})();

                              Skip to content
                              MarkdownDocument + MarkdownParser #4
                              Open
                              Open
                              MarkdownDocument + MarkdownParser#4
                              Description
                              @roxspring
                              roxspring
                              opened on Aug 24, 2026
                              Implement the primary entry point types for parsing Markdown files.
                              Scope
                              • MarkdownDocument — thin wrapper holding:

                                • The mutable commonmark-java Document AST
                                • The raw front matter string (nullable — absent if no front matter)
                              • MarkdownParser — parses a String or File into a MarkdownDocument
                                • Configures commonmark-java with YamlFrontMatterExtension (using RawContentParser) and TablesExtension
                                • Parser options should be configurable (extensions list) with sensible defaults
                              Notes
                              • Uses org.commonmark.parser.Parser and org.commonmark.node.Document
                              • Front matter extracted via YamlFrontMatterVisitor.readRawContent(document)
                              Acceptance criteria
                              • MarkdownParser().parse(string) returns a MarkdownDocument
                              • Front matter is correctly separated from body content
                              • Documents without front matter return null for the front matter field
                              Metadata
                              Metadata
                              Assignees
                              No one assigned
                                Labels
                                No labels
                                No labels
                                Projects
                                No projects
                                  Milestone
                                  No milestone
                                  Relationships
                                  None yet
                                  Development
                                  No branches or pull requests
                                  Issue actions