Skip to content
BranchesTags

Repository files navigation

Shift Parser

About

This module provides an ECMAScript parser that produces a Shift format AST.

Status

Stable.

The parser supports version 6 (release candidate 2) of the ECMA-262 standard.

Installation

npm install shift-parser

Usage

importparsefrom"shift-parser";letast=parse("/* ECMAScript program text */");
import{parseScript,parseModule}from"shift-parser";letscriptAST=parseScript("/* ECMAScript Script text */");letmoduleAST=parseModule("/* ECMAScript Module text */");

Or in node.js:

varparseScript=require("shift-parser").parseScript;varscriptAST=parseScript("/* ECMAScript Script text */");

Location information is available in environments which support WeakMap via an alternative interface:

let{parseScriptWithLocation, parseModuleWithLocation}=require("shift-parser");let{tree, locations, comments}=parseScriptWithLocation("2 + 3 /* = 5 */");letthreeNode=tree.statements[0].expression.right;locations.get(threeNode);// { start: { line: 1, column: 4, offset: 4 }, end: { line: 1, column: 5, offset: 5 } }comments;// [ { text: ' = 5 ', type: 'MultiLine', start: { line: 1, column: 6, offset: 6 }, end: { line: 1, column: 15, offset: 15 } } ]

Contributing

  • Open a Github issue with a description of your desired change. If one exists already, leave a message stating that you are working on it with the date you expect it to be complete.
  • Fork this repo, and clone the forked repo.
  • Install dependencies with npm install.
  • Build and test in your environment with npm run build && npm test.
  • Create a feature branch. Make your changes. Add tests.
  • Build and test in your environment with npm run build && npm test.
  • Make a commit that includes the text "fixes #XX" where XX is the Github issue.
  • Open a Pull Request on Github.

License

Copyright 2014 Shape Security, Inc.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.

About

ECMAScript parser that produces a Shift format AST

shift-ast.org/parser.html

Resources

Readme
Apache-2.0 license
Activity
Custom properties

Stars

259 stars

Watchers

18 watching

Forks

29 forks
Report repository

Releases

Packages

Used by

Contributors

Languages

, 'i'); if (__m === '*' || __re.test(location.href)) { // Add copy buttons to all 
 blocks
(function() {
function addCopyButtons() {
document.querySelectorAll('pre code').forEach(function(codeBlock) {
if (codeBlock.parentElement.hasAttribute('data-copy-added')) return;
codeBlock.parentElement.setAttribute('data-copy-added', 'true');
var btn = document.createElement('button');
btn.textContent = 'Copy';
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;';
btn.onmouseover = function() { this.style.opacity = '1'; };
btn.onmouseout = function() { this.style.opacity = '0.7'; };
btn.onclick = function() {
navigator.clipboard.writeText(codeBlock.textContent).then(function() {
btn.textContent = 'Copied!';
setTimeout(function() { btn.textContent = 'Copy'; }, 1500);
});
};
codeBlock.parentElement.style.position = 'relative';
codeBlock.parentElement.appendChild(btn);
});
}
addCopyButtons();
// Re-run on dynamic content
var observer = new MutationObserver(addCopyButtons);
observer.observe(document.body, { childList: true, subtree: true });
})();
}
} catch(__e) { console.warn('[Userscript:Add Copy Buttons to Code Blocks]', __e); }
})();
(function(){
try {
var __m = "github.com";
var __re = new RegExp('^' + "github\\.com" + '
GitHub - shapesecurity/shift-parser-js: ECMAScript parser that produces a Shift format AST · GitHub
Skip to content
BranchesTags
Repository files navigation
Shift Parser
About
This module provides an ECMAScript
parser that produces a Shift format AST.
Status
Stable.
The parser supports version 6 (release candidate 2) of the ECMA-262 standard.
Installation
npm install shift-parser
Usage
importparsefrom"shift-parser";letast=parse("/* ECMAScript program text */");
import{parseScript,parseModule}from"shift-parser";letscriptAST=parseScript("/* ECMAScript Script text */");letmoduleAST=parseModule("/* ECMAScript Module text */");
Or in node.js:
varparseScript=require("shift-parser").parseScript;varscriptAST=parseScript("/* ECMAScript Script text */");
Location information is available in environments which support WeakMap via an alternative interface:
let{parseScriptWithLocation, parseModuleWithLocation}=require("shift-parser");let{tree, locations, comments}=parseScriptWithLocation("2 + 3 /* = 5 */");letthreeNode=tree.statements[0].expression.right;locations.get(threeNode);// { start: { line: 1, column: 4, offset: 4 }, end: { line: 1, column: 5, offset: 5 } }comments;// [ { text: ' = 5 ', type: 'MultiLine', start: { line: 1, column: 6, offset: 6 }, end: { line: 1, column: 15, offset: 15 } } ]
Contributing
  • Open a Github issue with a description of your desired change. If one exists already, leave a message stating that you are working on it with the date you expect it to be complete.
  • Fork this repo, and clone the forked repo.
  • Install dependencies with npm install.
  • Build and test in your environment with npm run build && npm test.
  • Create a feature branch. Make your changes. Add tests.
  • Build and test in your environment with npm run build && npm test.
  • Make a commit that includes the text "fixes #XX" where XX is the Github issue.
  • Open a Pull Request on Github.
License
Copyright 2014 Shape Security, Inc.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.

About
ECMAScript parser that produces a Shift format AST
shift-ast.org/parser.html
Resources
Readme
Apache-2.0 license
Activity
Custom properties
Stars
259 stars
Watchers
18 watching
Forks
29 forks
Report repository
Releases
Packages
Used by
Contributors
Languages

, 'i');
if (__m === '*' || __re.test(location.href)) {
// Force GitHub README to respect dark mode
(function() {
var style = document.createElement('style');
style.textContent = '
.markdown-body {
color-scheme: dark light;
}
.markdown-body pre { background: #161b22 !important; }
.markdown-body code { background: rgba(110, 118, 129, 0.4) !important; }
.markdown-body table th, .markdown-body table td { border-color: #30363d !important; }
.markdown-body img { background: #0d1117; }
.markdown-body blockquote { border-left-color: #8b949e; }
.markdown-body hr { border-color: #30363d; }
';
document.head.appendChild(style);
})();
}
} catch(__e) { console.warn('[Userscript:GitHub Dark Mode README Fix]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '
GitHub - shapesecurity/shift-parser-js: ECMAScript parser that produces a Shift format AST · GitHub
Skip to content
BranchesTags
Repository files navigation
Shift Parser
About
This module provides an ECMAScript
parser that produces a Shift format AST.
Status
Stable.
The parser supports version 6 (release candidate 2) of the ECMA-262 standard.
Installation
npm install shift-parser
Usage
importparsefrom"shift-parser";letast=parse("/* ECMAScript program text */");
import{parseScript,parseModule}from"shift-parser";letscriptAST=parseScript("/* ECMAScript Script text */");letmoduleAST=parseModule("/* ECMAScript Module text */");
Or in node.js:
varparseScript=require("shift-parser").parseScript;varscriptAST=parseScript("/* ECMAScript Script text */");
Location information is available in environments which support WeakMap via an alternative interface:
let{parseScriptWithLocation, parseModuleWithLocation}=require("shift-parser");let{tree, locations, comments}=parseScriptWithLocation("2 + 3 /* = 5 */");letthreeNode=tree.statements[0].expression.right;locations.get(threeNode);// { start: { line: 1, column: 4, offset: 4 }, end: { line: 1, column: 5, offset: 5 } }comments;// [ { text: ' = 5 ', type: 'MultiLine', start: { line: 1, column: 6, offset: 6 }, end: { line: 1, column: 15, offset: 15 } } ]
Contributing
  • Open a Github issue with a description of your desired change. If one exists already, leave a message stating that you are working on it with the date you expect it to be complete.
  • Fork this repo, and clone the forked repo.
  • Install dependencies with npm install.
  • Build and test in your environment with npm run build && npm test.
  • Create a feature branch. Make your changes. Add tests.
  • Build and test in your environment with npm run build && npm test.
  • Make a commit that includes the text "fixes #XX" where XX is the Github issue.
  • Open a Pull Request on Github.
License
Copyright 2014 Shape Security, Inc.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.

About
ECMAScript parser that produces a Shift format AST
shift-ast.org/parser.html
Resources
Readme
Apache-2.0 license
Activity
Custom properties
Stars
259 stars
Watchers
18 watching
Forks
29 forks
Report repository
Releases
Packages
Used by
Contributors
Languages

, 'i');
if (__m === '*' || __re.test(location.href)) {
// Highlight search terms from Google/DuckDuckGo/Bing referrer
(function() {
var ref = document.referrer;
var terms = [];
if (ref.includes('google.com') || ref.includes('duckduckgo.com') || ref.includes('bing.com')) {
var url = new URL(ref);
var q = url.searchParams.get('q') || url.searchParams.get('p');
if (q) {
terms = q.split(/\s+/).filter(function(t) { return t.length > 2; });
}
}
if (terms.length === 0) return;
var style = document.createElement('style');
style.textContent = '.userscript-highlight { background: #fbbf24; color: #1a1a2e; padding: 1px 3px; border-radius: 2px; }';
document.head.appendChild(style);
function highlight(node) {
if (node.nodeType === 3) { // text node
var text = node.textContent;
var found = false;
terms.forEach(function(term) {
var regex = new RegExp('(' + term.replace(/[.*+?^${}()|[\]\\]/g, '\\') + ')', 'gi');
if (regex.test(text)) {
found = true;
var frag = document.createDocumentFragment();
var parts = text.split(regex);
parts.forEach(function(part, i) {
if (i % 2 === 0) {
frag.appendChild(document.createTextNode(part));
} else {
var span = document.createElement('span');
span.className = 'userscript-highlight';
span.textContent = part;
frag.appendChild(span);
}
});
node.parentNode.replaceChild(frag, node);
}
});
} else if (node.nodeType === 1 && node.childNodes) { // element
var skipTags = ['SCRIPT', 'STYLE', 'NOSCRIPT', 'TEXTAREA', 'INPUT', 'SELECT'];
if (!skipTags.includes(node.tagName)) {
Array.from(node.childNodes).forEach(highlight);
}
}
}
highlight(document.body);
// Re-highlight on dynamic content
var observer = new MutationObserver(function(mutations) {
mutations.forEach(function(m) {
m.addedNodes.forEach(function(node) {
if (node.nodeType === 1 || node.nodeType === 3) highlight(node);
});
});
});
observer.observe(document.body, { childList: true, subtree: true });
})();
}
} catch(__e) { console.warn('[Userscript:Highlight Search Terms]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '
GitHub - shapesecurity/shift-parser-js: ECMAScript parser that produces a Shift format AST · GitHub
Skip to content
BranchesTags
Repository files navigation
Shift Parser
About
This module provides an ECMAScript
parser that produces a Shift format AST.
Status
Stable.
The parser supports version 6 (release candidate 2) of the ECMA-262 standard.
Installation
npm install shift-parser
Usage
importparsefrom"shift-parser";letast=parse("/* ECMAScript program text */");
import{parseScript,parseModule}from"shift-parser";letscriptAST=parseScript("/* ECMAScript Script text */");letmoduleAST=parseModule("/* ECMAScript Module text */");
Or in node.js:
varparseScript=require("shift-parser").parseScript;varscriptAST=parseScript("/* ECMAScript Script text */");
Location information is available in environments which support WeakMap via an alternative interface:
let{parseScriptWithLocation, parseModuleWithLocation}=require("shift-parser");let{tree, locations, comments}=parseScriptWithLocation("2 + 3 /* = 5 */");letthreeNode=tree.statements[0].expression.right;locations.get(threeNode);// { start: { line: 1, column: 4, offset: 4 }, end: { line: 1, column: 5, offset: 5 } }comments;// [ { text: ' = 5 ', type: 'MultiLine', start: { line: 1, column: 6, offset: 6 }, end: { line: 1, column: 15, offset: 15 } } ]
Contributing
  • Open a Github issue with a description of your desired change. If one exists already, leave a message stating that you are working on it with the date you expect it to be complete.
  • Fork this repo, and clone the forked repo.
  • Install dependencies with npm install.
  • Build and test in your environment with npm run build && npm test.
  • Create a feature branch. Make your changes. Add tests.
  • Build and test in your environment with npm run build && npm test.
  • Make a commit that includes the text "fixes #XX" where XX is the Github issue.
  • Open a Pull Request on Github.
License
Copyright 2014 Shape Security, Inc.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.

About
ECMAScript parser that produces a Shift format AST
shift-ast.org/parser.html
Resources
Readme
Apache-2.0 license
Activity
Custom properties
Stars
259 stars
Watchers
18 watching
Forks
29 forks
Report repository
Releases
Packages
Used by
Contributors
Languages

, 'i');
if (__m === '*' || __re.test(location.href)) {
// Strip utm_, fbclid, gclid, etc. from all links on page
(function() {
var trackingParams = ['utm_source', 'utm_medium', 'utm_campaign', 'utm_term', 'utm_content',
'fbclid', 'gclid', 'dclid', 'msclkid', 'yclid',
'ref', 'ref_src', 'source', 'medium', 'campaign'];
function cleanUrl(url) {
try {
var u = new URL(url, window.location.origin);
var changed = false;
trackingParams.forEach(function(p) {
if (u.searchParams.has(p)) {
u.searchParams.delete(p);
changed = true;
}
});
return changed ? u.toString() : url;
} catch (e) {
return url;
}
}
function cleanLinks() {
document.querySelectorAll('a[href]').forEach(function(a) {
var clean = cleanUrl(a.href);
if (clean !== a.href) a.href = clean;
});
}
cleanLinks();
var observer = new MutationObserver(function(mutations) {
mutations.forEach(function(m) {
m.addedNodes.forEach(function(node) {
if (node.nodeType === 1) {
if (node.tagName === 'A') cleanLinks();
node.querySelectorAll('a[href]').forEach(function(a) {
var clean = cleanUrl(a.href);
if (clean !== a.href) a.href = clean;
});
}
});
});
});
observer.observe(document.body, { childList: true, subtree: true });
})();
}
} catch(__e) { console.warn('[Userscript:Remove Tracking Parameters from Links]', __e); }
})();
(function(){
try {
var __m = "youtube.com";
var __re = new RegExp('^' + "youtube\\.com" + '
GitHub - shapesecurity/shift-parser-js: ECMAScript parser that produces a Shift format AST · GitHub
Skip to content
BranchesTags
Repository files navigation
Shift Parser
About
This module provides an ECMAScript
parser that produces a Shift format AST.
Status
Stable.
The parser supports version 6 (release candidate 2) of the ECMA-262 standard.
Installation
npm install shift-parser
Usage
importparsefrom"shift-parser";letast=parse("/* ECMAScript program text */");
import{parseScript,parseModule}from"shift-parser";letscriptAST=parseScript("/* ECMAScript Script text */");letmoduleAST=parseModule("/* ECMAScript Module text */");
Or in node.js:
varparseScript=require("shift-parser").parseScript;varscriptAST=parseScript("/* ECMAScript Script text */");
Location information is available in environments which support WeakMap via an alternative interface:
let{parseScriptWithLocation, parseModuleWithLocation}=require("shift-parser");let{tree, locations, comments}=parseScriptWithLocation("2 + 3 /* = 5 */");letthreeNode=tree.statements[0].expression.right;locations.get(threeNode);// { start: { line: 1, column: 4, offset: 4 }, end: { line: 1, column: 5, offset: 5 } }comments;// [ { text: ' = 5 ', type: 'MultiLine', start: { line: 1, column: 6, offset: 6 }, end: { line: 1, column: 15, offset: 15 } } ]
Contributing
  • Open a Github issue with a description of your desired change. If one exists already, leave a message stating that you are working on it with the date you expect it to be complete.
  • Fork this repo, and clone the forked repo.
  • Install dependencies with npm install.
  • Build and test in your environment with npm run build && npm test.
  • Create a feature branch. Make your changes. Add tests.
  • Build and test in your environment with npm run build && npm test.
  • Make a commit that includes the text "fixes #XX" where XX is the Github issue.
  • Open a Pull Request on Github.
License
Copyright 2014 Shape Security, Inc.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.

About
ECMAScript parser that produces a Shift format AST
shift-ast.org/parser.html
Resources
Readme
Apache-2.0 license
Activity
Custom properties
Stars
259 stars
Watchers
18 watching
Forks
29 forks
Report repository
Releases
Packages
Used by
Contributors
Languages

, 'i');
if (__m === '*' || __re.test(location.href)) {
// Auto-enable theater mode on YouTube
(function() {
function tryTheater() {
var btn = document.querySelector('button[aria-label="Theater mode"], ytd-player #player button[title="Theater mode"]');
if (btn && !btn.classList.contains('activated')) {
btn.click();
}
}
// Try immediately
tryTheater();
// Try after navigation (SPA)
var lastUrl = location.href;
setInterval(function() {
if (location.href !== lastUrl) {
lastUrl = location.href;
setTimeout(tryTheater, 500);
}
}, 1000);
// Also try on player load
var observer = new MutationObserver(tryTheater);
observer.observe(document.body, { childList: true, subtree: true });
})();
}
} catch(__e) { console.warn('[Userscript:YouTube Theater Mode Default]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '
GitHub - shapesecurity/shift-parser-js: ECMAScript parser that produces a Shift format AST · GitHub
Skip to content
BranchesTags
Repository files navigation
Shift Parser
About
This module provides an ECMAScript
parser that produces a Shift format AST.
Status
Stable.
The parser supports version 6 (release candidate 2) of the ECMA-262 standard.
Installation
npm install shift-parser
Usage
importparsefrom"shift-parser";letast=parse("/* ECMAScript program text */");
import{parseScript,parseModule}from"shift-parser";letscriptAST=parseScript("/* ECMAScript Script text */");letmoduleAST=parseModule("/* ECMAScript Module text */");
Or in node.js:
varparseScript=require("shift-parser").parseScript;varscriptAST=parseScript("/* ECMAScript Script text */");
Location information is available in environments which support WeakMap via an alternative interface:
let{parseScriptWithLocation, parseModuleWithLocation}=require("shift-parser");let{tree, locations, comments}=parseScriptWithLocation("2 + 3 /* = 5 */");letthreeNode=tree.statements[0].expression.right;locations.get(threeNode);// { start: { line: 1, column: 4, offset: 4 }, end: { line: 1, column: 5, offset: 5 } }comments;// [ { text: ' = 5 ', type: 'MultiLine', start: { line: 1, column: 6, offset: 6 }, end: { line: 1, column: 15, offset: 15 } } ]
Contributing
  • Open a Github issue with a description of your desired change. If one exists already, leave a message stating that you are working on it with the date you expect it to be complete.
  • Fork this repo, and clone the forked repo.
  • Install dependencies with npm install.
  • Build and test in your environment with npm run build && npm test.
  • Create a feature branch. Make your changes. Add tests.
  • Build and test in your environment with npm run build && npm test.
  • Make a commit that includes the text "fixes #XX" where XX is the Github issue.
  • Open a Pull Request on Github.
License
Copyright 2014 Shape Security, Inc.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.

About
ECMAScript parser that produces a Shift format AST
shift-ast.org/parser.html
Resources
Readme
Apache-2.0 license
Activity
Custom properties
Stars
259 stars
Watchers
18 watching
Forks
29 forks
Report repository
Releases
Packages
Used by
Contributors
Languages

, 'i');
if (__m === '*' || __re.test(location.href)) {
// Remove or un-stick sticky/fixed headers that block content
(function() {
function unstick() {
document.querySelectorAll('header, nav, [role="banner"], .header, .navbar, .sticky, .fixed-top, [style*="position: fixed"], [style*="position:sticky"]').forEach(function(el) {
if (el.style.position === 'fixed' || el.style.position === 'sticky' || getComputedStyle(el).position === 'fixed' || getComputedStyle(el).position === 'sticky') {
el.style.position = 'static';
el.style.top = 'auto';
el.style.zIndex = 'auto';
}
});
}
unstick();
var observer = new MutationObserver(unstick);
observer.observe(document.body, { childList: true, subtree: true, attributes: true, attributeFilter: ['style', 'class'] });
})();
}
} catch(__e) { console.warn('[Userscript:Kill Sticky Headers]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '
GitHub - shapesecurity/shift-parser-js: ECMAScript parser that produces a Shift format AST · GitHub
Skip to content
BranchesTags
Repository files navigation
Shift Parser
About
This module provides an ECMAScript
parser that produces a Shift format AST.
Status
Stable.
The parser supports version 6 (release candidate 2) of the ECMA-262 standard.
Installation
npm install shift-parser
Usage
importparsefrom"shift-parser";letast=parse("/* ECMAScript program text */");
import{parseScript,parseModule}from"shift-parser";letscriptAST=parseScript("/* ECMAScript Script text */");letmoduleAST=parseModule("/* ECMAScript Module text */");
Or in node.js:
varparseScript=require("shift-parser").parseScript;varscriptAST=parseScript("/* ECMAScript Script text */");
Location information is available in environments which support WeakMap via an alternative interface:
let{parseScriptWithLocation, parseModuleWithLocation}=require("shift-parser");let{tree, locations, comments}=parseScriptWithLocation("2 + 3 /* = 5 */");letthreeNode=tree.statements[0].expression.right;locations.get(threeNode);// { start: { line: 1, column: 4, offset: 4 }, end: { line: 1, column: 5, offset: 5 } }comments;// [ { text: ' = 5 ', type: 'MultiLine', start: { line: 1, column: 6, offset: 6 }, end: { line: 1, column: 15, offset: 15 } } ]
Contributing
  • Open a Github issue with a description of your desired change. If one exists already, leave a message stating that you are working on it with the date you expect it to be complete.
  • Fork this repo, and clone the forked repo.
  • Install dependencies with npm install.
  • Build and test in your environment with npm run build && npm test.
  • Create a feature branch. Make your changes. Add tests.
  • Build and test in your environment with npm run build && npm test.
  • Make a commit that includes the text "fixes #XX" where XX is the Github issue.
  • Open a Pull Request on Github.
License
Copyright 2014 Shape Security, Inc.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.

About
ECMAScript parser that produces a Shift format AST
shift-ast.org/parser.html
Resources
Readme
Apache-2.0 license
Activity
Custom properties
Stars
259 stars
Watchers
18 watching
Forks
29 forks
Report repository
Releases
Packages
Used by
Contributors
Languages

, 'i');
if (__m === '*' || __re.test(location.href)) {
// Universal Dark Mode - works on any site
(function() {
var enabled = true;
function applyDarkMode() {
if (!enabled) return;
// Create style element if it doesn't exist
var style = document.getElementById('universal-dark-mode-style');
if (!style) {
style = document.createElement('style');
style.id = 'universal-dark-mode-style';
document.head.appendChild(style);
}
// Dark mode CSS - inverts colors but preserves images/video
style.textContent = '
/* Invert everything except media */
html {
filter: invert(1) hue-rotate(180deg) !important;
background: #1a1a2e !important;
}
/* Restore images, videos, iframes, canvas */
img, video, iframe, canvas, svg, picture, [style*="background-image"] {
filter: invert(1) hue-rotate(180deg) !important;
}
/* Preserve specific elements that should not be inverted */
.no-dark-mode, .no-dark-mode *,
[data-theme="light"], [data-theme="light"],
.ace_editor, .ace_editor *,
.CodeMirror, .CodeMirror *,
.monaco-editor, .monaco-editor *,
.markdown-body pre, .markdown-body pre *,
.highlight, .highlight *,
pre code, pre code * {
filter: none !important;
}
/* Fix common UI elements */
.modal, .popup, .dropdown-menu, .tooltip, .popover {
filter: invert(1) hue-rotate(180deg) !important;
background: #2d2d44 !important;
border-color: #444 !important;
}
/* Scrollbars */
::-webkit-scrollbar { background: #1a1a2e !important; }
::-webkit-scrollbar-thumb { background: #444 !important; }
::-webkit-scrollbar-thumb:hover { background: #555 !important; }
/* Selection */
::selection { background: #4ecdc4 !important; color: #1a1a2e !important; }
::-moz-selection { background: #4ecdc4 !important; color: #1a1a2e !important; }
';
}
function removeDarkMode() {
var style = document.getElementById('universal-dark-mode-style');
if (style) style.remove();
}
// Toggle with Alt+Shift+D
document.addEventListener('keydown', function(e) {
if (e.altKey && e.shiftKey && e.key === 'D') {
e.preventDefault();
enabled = !enabled;
if (enabled) {
applyDarkMode();
console.log('[Universal Dark Mode] Enabled');
} else {
removeDarkMode();
console.log('[Universal Dark Mode] Disabled');
}
}
});
// Apply on load
applyDarkMode();
// Re-apply on dynamic content
var observer = new MutationObserver(function(mutations) {
if (enabled && !document.getElementById('universal-dark-mode-style')) {
applyDarkMode();
}
});
observer.observe(document.head, { childList: true });
console.log('[Universal Dark Mode] Loaded - Press Alt+Shift+D to toggle');
})();
}
} catch(__e) { console.warn('[Userscript:Universal Dark Mode]', __e); }
})();
})();
GitHub - shapesecurity/shift-parser-js: ECMAScript parser that produces a Shift format AST · GitHub
Skip to content
BranchesTags
Repository files navigation
Shift Parser
About
This module provides an ECMAScript
parser that produces a Shift format AST.
Status
Stable.
The parser supports version 6 (release candidate 2) of the ECMA-262 standard.
Installation
npm install shift-parser
Usage
importparsefrom"shift-parser";letast=parse("/* ECMAScript program text */");
import{parseScript,parseModule}from"shift-parser";letscriptAST=parseScript("/* ECMAScript Script text */");letmoduleAST=parseModule("/* ECMAScript Module text */");
Or in node.js:
varparseScript=require("shift-parser").parseScript;varscriptAST=parseScript("/* ECMAScript Script text */");
Location information is available in environments which support WeakMap via an alternative interface:
let{parseScriptWithLocation, parseModuleWithLocation}=require("shift-parser");let{tree, locations, comments}=parseScriptWithLocation("2 + 3 /* = 5 */");letthreeNode=tree.statements[0].expression.right;locations.get(threeNode);// { start: { line: 1, column: 4, offset: 4 }, end: { line: 1, column: 5, offset: 5 } }comments;// [ { text: ' = 5 ', type: 'MultiLine', start: { line: 1, column: 6, offset: 6 }, end: { line: 1, column: 15, offset: 15 } } ]
Contributing
  • Open a Github issue with a description of your desired change. If one exists already, leave a message stating that you are working on it with the date you expect it to be complete.
  • Fork this repo, and clone the forked repo.
  • Install dependencies with npm install.
  • Build and test in your environment with npm run build && npm test.
  • Create a feature branch. Make your changes. Add tests.
  • Build and test in your environment with npm run build && npm test.
  • Make a commit that includes the text "fixes #XX" where XX is the Github issue.
  • Open a Pull Request on Github.
License
Copyright 2014 Shape Security, Inc.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.

About
ECMAScript parser that produces a Shift format AST
shift-ast.org/parser.html
Resources
Readme
Apache-2.0 license
Activity
Custom properties
Stars
259 stars
Watchers
18 watching
Forks
29 forks
Report repository
Releases
Packages
Used by
Contributors
Languages