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Description

compress.deflatelua is a library implementing DEFLATE, as well as zlib and gzip decompression in pure Lua.

Example usage

./gunziplua lua-5.1.4.tar.gz

Performance

It's somewhat slow (as expected). To decompress lua-5.1.4.tar.gz, it takes about 9 seconds with CRC-checking enabled (4 with LuaJIT 1.x) or 3 seconds with CRC checking disabled (2 with LuaJIT 1.x).

Rationale

Possible reasons for this module include:

  1. for pedagogical reasons
  2. to benchmark Lua
  3. to bootstrap applications like LuaRocks/LuaDist that might not have a precompiled copy of gunzip, and
  4. because DEFLATE has been implemented in other languages too, including Python, Perl, and Lisp.

Status

It should be robust and there are no known bugs. It successfully decompresses gzip files but there is currently no compressor implementation.

Dependencies

  • digest.crc32lua - CRC-32 checksum implemented in pure Lua
  • bit.numberlua - bitwise operations implemented in pure Lua as numbers (not required if using a native bitwise operation library)
  • pythonic.optparse - command-line processing resembling the Python optparse module

Conventions

The modules above follow a somewhat Perl CPAN-like naming convention. Compare to Compress::Zlib::Perl, Digest::CRC32 and the Bit:: modules.

Author

David Manura. See COPYRIGHT file.

About

DEFLATE (RFC1951)/gunzip implemented in pure Lua

Resources

Stars

54 stars

Watchers

4 watching

Forks

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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" + '
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Repository files navigation

Description

compress.deflatelua is a library implementing DEFLATE, as well as zlib and gzip decompression in pure Lua.

Example usage

./gunziplua lua-5.1.4.tar.gz

Performance

It's somewhat slow (as expected). To decompress lua-5.1.4.tar.gz, it takes about 9 seconds with CRC-checking enabled (4 with LuaJIT 1.x) or 3 seconds with CRC checking disabled (2 with LuaJIT 1.x).

Rationale

Possible reasons for this module include:

  1. for pedagogical reasons
  2. to benchmark Lua
  3. to bootstrap applications like LuaRocks/LuaDist that might not have a precompiled copy of gunzip, and
  4. because DEFLATE has been implemented in other languages too, including Python, Perl, and Lisp.

Status

It should be robust and there are no known bugs. It successfully decompresses gzip files but there is currently no compressor implementation.

Dependencies

  • digest.crc32lua - CRC-32 checksum implemented in pure Lua
  • bit.numberlua - bitwise operations implemented in pure Lua as numbers (not required if using a native bitwise operation library)
  • pythonic.optparse - command-line processing resembling the Python optparse module

Conventions

The modules above follow a somewhat Perl CPAN-like naming convention. Compare to Compress::Zlib::Perl, Digest::CRC32 and the Bit:: modules.

Author

David Manura. See COPYRIGHT file.

About

DEFLATE (RFC1951)/gunzip implemented in pure Lua

Resources

Stars

54 stars

Watchers

4 watching

Forks

Releases

Packages

Contributors

Languages

, '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

Repository files navigation

Description

compress.deflatelua is a library implementing DEFLATE, as well as zlib and gzip decompression in pure Lua.

Example usage

./gunziplua lua-5.1.4.tar.gz

Performance

It's somewhat slow (as expected). To decompress lua-5.1.4.tar.gz, it takes about 9 seconds with CRC-checking enabled (4 with LuaJIT 1.x) or 3 seconds with CRC checking disabled (2 with LuaJIT 1.x).

Rationale

Possible reasons for this module include:

  1. for pedagogical reasons
  2. to benchmark Lua
  3. to bootstrap applications like LuaRocks/LuaDist that might not have a precompiled copy of gunzip, and
  4. because DEFLATE has been implemented in other languages too, including Python, Perl, and Lisp.

Status

It should be robust and there are no known bugs. It successfully decompresses gzip files but there is currently no compressor implementation.

Dependencies

  • digest.crc32lua - CRC-32 checksum implemented in pure Lua
  • bit.numberlua - bitwise operations implemented in pure Lua as numbers (not required if using a native bitwise operation library)
  • pythonic.optparse - command-line processing resembling the Python optparse module

Conventions

The modules above follow a somewhat Perl CPAN-like naming convention. Compare to Compress::Zlib::Perl, Digest::CRC32 and the Bit:: modules.

Author

David Manura. See COPYRIGHT file.

About

DEFLATE (RFC1951)/gunzip implemented in pure Lua

Resources

Stars

54 stars

Watchers

4 watching

Forks

Releases

Packages

Contributors

Languages

, '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

Repository files navigation

Description

compress.deflatelua is a library implementing DEFLATE, as well as zlib and gzip decompression in pure Lua.

Example usage

./gunziplua lua-5.1.4.tar.gz

Performance

It's somewhat slow (as expected). To decompress lua-5.1.4.tar.gz, it takes about 9 seconds with CRC-checking enabled (4 with LuaJIT 1.x) or 3 seconds with CRC checking disabled (2 with LuaJIT 1.x).

Rationale

Possible reasons for this module include:

  1. for pedagogical reasons
  2. to benchmark Lua
  3. to bootstrap applications like LuaRocks/LuaDist that might not have a precompiled copy of gunzip, and
  4. because DEFLATE has been implemented in other languages too, including Python, Perl, and Lisp.

Status

It should be robust and there are no known bugs. It successfully decompresses gzip files but there is currently no compressor implementation.

Dependencies

  • digest.crc32lua - CRC-32 checksum implemented in pure Lua
  • bit.numberlua - bitwise operations implemented in pure Lua as numbers (not required if using a native bitwise operation library)
  • pythonic.optparse - command-line processing resembling the Python optparse module

Conventions

The modules above follow a somewhat Perl CPAN-like naming convention. Compare to Compress::Zlib::Perl, Digest::CRC32 and the Bit:: modules.

Author

David Manura. See COPYRIGHT file.

About

DEFLATE (RFC1951)/gunzip implemented in pure Lua

Resources

Stars

54 stars

Watchers

4 watching

Forks

Releases

Packages

Contributors

Languages

, '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

Repository files navigation

Description

compress.deflatelua is a library implementing DEFLATE, as well as zlib and gzip decompression in pure Lua.

Example usage

./gunziplua lua-5.1.4.tar.gz

Performance

It's somewhat slow (as expected). To decompress lua-5.1.4.tar.gz, it takes about 9 seconds with CRC-checking enabled (4 with LuaJIT 1.x) or 3 seconds with CRC checking disabled (2 with LuaJIT 1.x).

Rationale

Possible reasons for this module include:

  1. for pedagogical reasons
  2. to benchmark Lua
  3. to bootstrap applications like LuaRocks/LuaDist that might not have a precompiled copy of gunzip, and
  4. because DEFLATE has been implemented in other languages too, including Python, Perl, and Lisp.

Status

It should be robust and there are no known bugs. It successfully decompresses gzip files but there is currently no compressor implementation.

Dependencies

  • digest.crc32lua - CRC-32 checksum implemented in pure Lua
  • bit.numberlua - bitwise operations implemented in pure Lua as numbers (not required if using a native bitwise operation library)
  • pythonic.optparse - command-line processing resembling the Python optparse module

Conventions

The modules above follow a somewhat Perl CPAN-like naming convention. Compare to Compress::Zlib::Perl, Digest::CRC32 and the Bit:: modules.

Author

David Manura. See COPYRIGHT file.

About

DEFLATE (RFC1951)/gunzip implemented in pure Lua

Resources

Stars

54 stars

Watchers

4 watching

Forks

Releases

Packages

Contributors

Languages

, '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

Repository files navigation

Description

compress.deflatelua is a library implementing DEFLATE, as well as zlib and gzip decompression in pure Lua.

Example usage

./gunziplua lua-5.1.4.tar.gz

Performance

It's somewhat slow (as expected). To decompress lua-5.1.4.tar.gz, it takes about 9 seconds with CRC-checking enabled (4 with LuaJIT 1.x) or 3 seconds with CRC checking disabled (2 with LuaJIT 1.x).

Rationale

Possible reasons for this module include:

  1. for pedagogical reasons
  2. to benchmark Lua
  3. to bootstrap applications like LuaRocks/LuaDist that might not have a precompiled copy of gunzip, and
  4. because DEFLATE has been implemented in other languages too, including Python, Perl, and Lisp.

Status

It should be robust and there are no known bugs. It successfully decompresses gzip files but there is currently no compressor implementation.

Dependencies

  • digest.crc32lua - CRC-32 checksum implemented in pure Lua
  • bit.numberlua - bitwise operations implemented in pure Lua as numbers (not required if using a native bitwise operation library)
  • pythonic.optparse - command-line processing resembling the Python optparse module

Conventions

The modules above follow a somewhat Perl CPAN-like naming convention. Compare to Compress::Zlib::Perl, Digest::CRC32 and the Bit:: modules.

Author

David Manura. See COPYRIGHT file.

About

DEFLATE (RFC1951)/gunzip implemented in pure Lua

Resources

Stars

54 stars

Watchers

4 watching

Forks

Releases

Packages

Contributors

Languages

, '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

Repository files navigation

Description

compress.deflatelua is a library implementing DEFLATE, as well as zlib and gzip decompression in pure Lua.

Example usage

./gunziplua lua-5.1.4.tar.gz

Performance

It's somewhat slow (as expected). To decompress lua-5.1.4.tar.gz, it takes about 9 seconds with CRC-checking enabled (4 with LuaJIT 1.x) or 3 seconds with CRC checking disabled (2 with LuaJIT 1.x).

Rationale

Possible reasons for this module include:

  1. for pedagogical reasons
  2. to benchmark Lua
  3. to bootstrap applications like LuaRocks/LuaDist that might not have a precompiled copy of gunzip, and
  4. because DEFLATE has been implemented in other languages too, including Python, Perl, and Lisp.

Status

It should be robust and there are no known bugs. It successfully decompresses gzip files but there is currently no compressor implementation.

Dependencies

  • digest.crc32lua - CRC-32 checksum implemented in pure Lua
  • bit.numberlua - bitwise operations implemented in pure Lua as numbers (not required if using a native bitwise operation library)
  • pythonic.optparse - command-line processing resembling the Python optparse module

Conventions

The modules above follow a somewhat Perl CPAN-like naming convention. Compare to Compress::Zlib::Perl, Digest::CRC32 and the Bit:: modules.

Author

David Manura. See COPYRIGHT file.

About

DEFLATE (RFC1951)/gunzip implemented in pure Lua

Resources

Stars

54 stars

Watchers

4 watching

Forks

Releases

Packages

Contributors

Languages

, '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

Repository files navigation

Description

compress.deflatelua is a library implementing DEFLATE, as well as zlib and gzip decompression in pure Lua.

Example usage

./gunziplua lua-5.1.4.tar.gz

Performance

It's somewhat slow (as expected). To decompress lua-5.1.4.tar.gz, it takes about 9 seconds with CRC-checking enabled (4 with LuaJIT 1.x) or 3 seconds with CRC checking disabled (2 with LuaJIT 1.x).

Rationale

Possible reasons for this module include:

  1. for pedagogical reasons
  2. to benchmark Lua
  3. to bootstrap applications like LuaRocks/LuaDist that might not have a precompiled copy of gunzip, and
  4. because DEFLATE has been implemented in other languages too, including Python, Perl, and Lisp.

Status

It should be robust and there are no known bugs. It successfully decompresses gzip files but there is currently no compressor implementation.

Dependencies

  • digest.crc32lua - CRC-32 checksum implemented in pure Lua
  • bit.numberlua - bitwise operations implemented in pure Lua as numbers (not required if using a native bitwise operation library)
  • pythonic.optparse - command-line processing resembling the Python optparse module

Conventions

The modules above follow a somewhat Perl CPAN-like naming convention. Compare to Compress::Zlib::Perl, Digest::CRC32 and the Bit:: modules.

Author

David Manura. See COPYRIGHT file.

About

DEFLATE (RFC1951)/gunzip implemented in pure Lua

Resources

Stars

54 stars

Watchers

4 watching

Forks

Releases

Packages

Contributors

Languages