Publish

- @strudel.cycles/eval@0.1.1
 - @strudel.cycles/midi@0.1.1
 - @strudel.cycles/mini@0.1.1
 - @strudel.cycles/react@0.1.2
 - @strudel.cycles/tonal@0.1.1
 - @strudel.cycles/tone@0.1.1
 - @strudel.cycles/webaudio@0.1.1
 - @strudel.cycles/xen@0.1.1

.gitignore

@@ -1,4 +1,5 @@
 dist
+out
 !docs/dist
 dist-*
 cabal-dev
@@ -26,4 +27,7 @@ node_modules/
 .DS_Store
 repl-parcel
 mytunes.ts
-doc
+doc
+out
+.parcel-cache
+repl_old

.prettierrc

@@ -0,0 +1,16 @@
+{
+    "printWidth": 120,
+    "useTabs": false,
+    "tabWidth": 2,
+    "semi": true,
+    "singleQuote": true,
+    "jsxSingleQuote": false,
+    "trailingComma": "all",
+    "bracketSpacing": true,
+    "jsxBracketSameLine": false,
+    "arrowParens": "always",
+    "proseWrap": "preserve",
+    "htmlWhitespaceSensitivity": "css",
+    "endOfLine": "lf"
+  }
+  

CONTRIBUTING.md

@@ -0,0 +1,111 @@
+# 🌀 Contributing to Strudel 🌀
+
+Thanks for wanting to contribute!!! There are many ways you can add value to this project
+
+## Communication Channels
+
+To get in touch with the contributors, either
+
+- open a [github discussion](https://github.com/tidalcycles/strudel/discussions) or
+- [join the Tidal Discord Channel](https://discord.gg/remJ6gQA) and go to the #strudel channel
+- Find related discussions on the [tidal club forum](https://club.tidalcycles.org/)
+
+## Ask a Question
+
+If you have any questions about strudel, make sure you've read the 
+[tutorial](https://strudel.tidalcycles.org/tutorial/) to find out if it answers your question.
+If not, use one of the Communication Channels above!
+
+Don't be afraid to ask! Your question might be of great value for other people too.
+
+## Give Feedback
+
+No matter if you've used the Strudel REPL or if you are using the strudel packages, we are happy to hear some feedback.
+Use one of the Communication Channels listed above and drop us a line or two!
+
+## Share Music
+
+If you made some music with strudel, you can give back some love and share what you've done!
+Your creation could also be part of the random selection in the REPL if you want.
+Use one of the Communication Channels listed above.
+
+## Improve the Tutorial
+
+If you find some weak spots in the [tutorial](https://strudel.tidalcycles.org/), 
+you are welcome to improve them by editing [this file](https://github.com/tidalcycles/strudel/blob/main/repl/src/tutorial/tutorial.mdx).
+This will even work without setting up a development environment, only a github account is required.
+
+## Propose a Feature
+
+If you want a specific feature that is not part of strudel yet, feel free to use one of the communication channels above.
+Maybe you even want to help with the implementation of that feature!
+
+## Report a Bug
+
+If you've found a bug, or some behaviour that does not seem right, you are welcome to file an [issue](https://github.com/tidalcycles/strudel/issues).
+Please check that it has not been reported before.
+
+## Fix a Bug
+
+To fix a bug that has been reported,
+
+1. check that nobody else is already fixing it and respond to the issue to let people know you're on it
+3. fork the repository
+4. make sure you've setup the project (see below)
+5. hopefully fix the bug
+6. make sure the tests pass
+7. send a pull request
+
+## Write Tests
+
+There are still many tests that have not been written yet! Reading and writing tests is a great opportunity to get familiar with the codebase.
+You can find the tests in each package in the `test` folder. To run all tests, run `npm test` from the root folder.
+
+## Project Setup
+
+To get the project up and running for development, make sure you have installed:
+
+- git
+- node, preferably v16
+
+then, do the following:
+
+```sh
+git clone https://github.com/tidalcycles/strudel.git && cd strudel
+npm i # install at root to symlink packages
+npx lerna bootstrap # install all dependencies in packages
+cd repl && npm i # install repl dependencies
+npm run start # start repl
+```
+
+Those commands might look slightly different for your OS. 
+Please report any problems you've had with the setup instructions!
+
+## Code Style
+
+To make sure the code changes only where it should, we are using prettier to unify the code style.
+If you use VSCode, you can
+
+1. install [the prettier extension](https://marketplace.visualstudio.com/items?itemName=esbenp.prettier-vscode)
+2. open command palette and run "Format Document With..."
+3. Choose "Configure Default Formatter..."
+4. Select prettier
+
+## Package Workflow
+
+The project is split into multiple [packages](https://github.com/tidalcycles/strudel/tree/main/packages) with independent versioning.
+When you run `npm i` on the root folder, [npm workspaces](https://docs.npmjs.com/cli/v7/using-npm/workspaces) will symlink all packages
+in the `node_modules` folder. This will allow any js file to import `@strudel.cycles/<package-name>` to get the local version, 
+which allows developing multiple packages at the same time
+
+## Package Publishing
+
+To publish all packages that have been changed since the last release, run:
+
+```sh
+npx lerna publish
+```
+
+## Have Fun
+
+Remember to have fun, and that this project is driven by the passion of volunteers!

LICENSE

@@ -1,5 +1,5 @@
-                    GNU GENERAL PUBLIC LICENSE
-                       Version 3, 29 June 2007
+                    GNU AFFERO GENERAL PUBLIC LICENSE
+                       Version 3, 19 November 2007
 
  Copyright (C) 2007 Free Software Foundation, Inc. <https://fsf.org/>
  Everyone is permitted to copy and distribute verbatim copies
@@ -7,17 +7,15 @@
 
                             Preamble
 
-  The GNU General Public License is a free, copyleft license for
-software and other kinds of works.
+  The GNU Affero General Public License is a free, copyleft license for
+software and other kinds of works, specifically designed to ensure
+cooperation with the community in the case of network server software.
 
   The licenses for most software and other practical works are designed
 to take away your freedom to share and change the works.  By contrast,
-the GNU General Public License is intended to guarantee your freedom to
+our General Public Licenses are intended to guarantee your freedom to
 share and change all versions of a program--to make sure it remains free
-software for all its users.  We, the Free Software Foundation, use the
-GNU General Public License for most of our software; it applies also to
-any other work released this way by its authors.  You can apply it to
-your programs, too.
+software for all its users.
 
   When we speak of free software, we are referring to freedom, not
 price.  Our General Public Licenses are designed to make sure that you
@@ -26,44 +24,34 @@ them if you wish), that you receive source code or can get it if you
 want it, that you can change the software or use pieces of it in new
 free programs, and that you know you can do these things.
 
-  To protect your rights, we need to prevent others from denying you
-these rights or asking you to surrender the rights.  Therefore, you have
-certain responsibilities if you distribute copies of the software, or if
-you modify it: responsibilities to respect the freedom of others.
+  Developers that use our General Public Licenses protect your rights
+with two steps: (1) assert copyright on the software, and (2) offer
+you this License which gives you legal permission to copy, distribute
+and/or modify the software.
 
-  For example, if you distribute copies of such a program, whether
-gratis or for a fee, you must pass on to the recipients the same
-freedoms that you received.  You must make sure that they, too, receive
-or can get the source code.  And you must show them these terms so they
-know their rights.
+  A secondary benefit of defending all users' freedom is that
+improvements made in alternate versions of the program, if they
+receive widespread use, become available for other developers to
+incorporate.  Many developers of free software are heartened and
+encouraged by the resulting cooperation.  However, in the case of
+software used on network servers, this result may fail to come about.
+The GNU General Public License permits making a modified version and
+letting the public access it on a server without ever releasing its
+source code to the public.
 
-  Developers that use the GNU GPL protect your rights with two steps:
-(1) assert copyright on the software, and (2) offer you this License
-giving you legal permission to copy, distribute and/or modify it.
+  The GNU Affero General Public License is designed specifically to
+ensure that, in such cases, the modified source code becomes available
+to the community.  It requires the operator of a network server to
+provide the source code of the modified version running there to the
+users of that server.  Therefore, public use of a modified version, on
+a publicly accessible server, gives the public access to the source
+code of the modified version.
 
-  For the developers' and authors' protection, the GPL clearly explains
-that there is no warranty for this free software.  For both users' and
-authors' sake, the GPL requires that modified versions be marked as
-changed, so that their problems will not be attributed erroneously to
-authors of previous versions.
-
-  Some devices are designed to deny users access to install or run
-modified versions of the software inside them, although the manufacturer
-can do so.  This is fundamentally incompatible with the aim of
-protecting users' freedom to change the software.  The systematic
-pattern of such abuse occurs in the area of products for individuals to
-use, which is precisely where it is most unacceptable.  Therefore, we
-have designed this version of the GPL to prohibit the practice for those
-products.  If such problems arise substantially in other domains, we
-stand ready to extend this provision to those domains in future versions
-of the GPL, as needed to protect the freedom of users.
-
-  Finally, every program is threatened constantly by software patents.
-States should not allow patents to restrict development and use of
-software on general-purpose computers, but in those that do, we wish to
-avoid the special danger that patents applied to a free program could
-make it effectively proprietary.  To prevent this, the GPL assures that
-patents cannot be used to render the program non-free.
+  An older license, called the Affero General Public License and
+published by Affero, was designed to accomplish similar goals.  This is
+a different license, not a version of the Affero GPL, but Affero has
+released a new version of the Affero GPL which permits relicensing under
+this license.
 
   The precise terms and conditions for copying, distribution and
 modification follow.
@@ -72,7 +60,7 @@ modification follow.
 
   0. Definitions.
 
-  "This License" refers to version 3 of the GNU General Public License.
+  "This License" refers to version 3 of the GNU Affero General Public License.
 
   "Copyright" also means copyright-like laws that apply to other kinds of
 works, such as semiconductor masks.
@@ -549,35 +537,45 @@ to collect a royalty for further conveying from those to whom you convey
 the Program, the only way you could satisfy both those terms and this
 License would be to refrain entirely from conveying the Program.
 
-  13. Use with the GNU Affero General Public License.
+  13. Remote Network Interaction; Use with the GNU General Public License.
+
+  Notwithstanding any other provision of this License, if you modify the
+Program, your modified version must prominently offer all users
+interacting with it remotely through a computer network (if your version
+supports such interaction) an opportunity to receive the Corresponding
+Source of your version by providing access to the Corresponding Source
+from a network server at no charge, through some standard or customary
+means of facilitating copying of software.  This Corresponding Source
+shall include the Corresponding Source for any work covered by version 3
+of the GNU General Public License that is incorporated pursuant to the
+following paragraph.
 
   Notwithstanding any other provision of this License, you have
 permission to link or combine any covered work with a work licensed
-under version 3 of the GNU Affero General Public License into a single
+under version 3 of the GNU General Public License into a single
 combined work, and to convey the resulting work.  The terms of this
 License will continue to apply to the part which is the covered work,
-but the special requirements of the GNU Affero General Public License,
-section 13, concerning interaction through a network will apply to the
-combination as such.
+but the work with which it is combined will remain governed by version
+3 of the GNU General Public License.
 
   14. Revised Versions of this License.
 
   The Free Software Foundation may publish revised and/or new versions of
-the GNU General Public License from time to time.  Such new versions will
-be similar in spirit to the present version, but may differ in detail to
+the GNU Affero General Public License from time to time.  Such new versions
+will be similar in spirit to the present version, but may differ in detail to
 address new problems or concerns.
 
   Each version is given a distinguishing version number.  If the
-Program specifies that a certain numbered version of the GNU General
+Program specifies that a certain numbered version of the GNU Affero General
 Public License "or any later version" applies to it, you have the
 option of following the terms and conditions either of that numbered
 version or of any later version published by the Free Software
 Foundation.  If the Program does not specify a version number of the
-GNU General Public License, you may choose any version ever published
+GNU Affero General Public License, you may choose any version ever published
 by the Free Software Foundation.
 
   If the Program specifies that a proxy can decide which future
-versions of the GNU General Public License can be used, that proxy's
+versions of the GNU Affero General Public License can be used, that proxy's
 public statement of acceptance of a version permanently authorizes you
 to choose that version for the Program.
 
@@ -635,40 +633,29 @@ the "copyright" line and a pointer to where the full notice is found.
     Copyright (C) <year>  <name of author>
 
     This program is free software: you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
+    it under the terms of the GNU Affero General Public License as published by
     the Free Software Foundation, either version 3 of the License, or
     (at your option) any later version.
 
     This program is distributed in the hope that it will be useful,
     but WITHOUT ANY WARRANTY; without even the implied warranty of
     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-    GNU General Public License for more details.
+    GNU Affero General Public License for more details.
 
-    You should have received a copy of the GNU General Public License
+    You should have received a copy of the GNU Affero General Public License
     along with this program.  If not, see <https://www.gnu.org/licenses/>.
 
 Also add information on how to contact you by electronic and paper mail.
 
-  If the program does terminal interaction, make it output a short
-notice like this when it starts in an interactive mode:
-
-    <program>  Copyright (C) <year>  <name of author>
-    This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
-    This is free software, and you are welcome to redistribute it
-    under certain conditions; type `show c' for details.
-
-The hypothetical commands `show w' and `show c' should show the appropriate
-parts of the General Public License.  Of course, your program's commands
-might be different; for a GUI interface, you would use an "about box".
+  If your software can interact with users remotely through a computer
+network, you should also make sure that it provides a way for users to
+get its source.  For example, if your program is a web application, its
+interface could display a "Source" link that leads users to an archive
+of the code.  There are many ways you could offer source, and different
+solutions will be better for different programs; see section 13 for the
+specific requirements.
 
   You should also get your employer (if you work as a programmer) or school,
 if any, to sign a "copyright disclaimer" for the program, if necessary.
-For more information on this, and how to apply and follow the GNU GPL, see
+For more information on this, and how to apply and follow the GNU AGPL, see
 <https://www.gnu.org/licenses/>.
-
-  The GNU General Public License does not permit incorporating your program
-into proprietary programs.  If your program is a subroutine library, you
-may consider it more useful to permit linking proprietary applications with
-the library.  If this is what you want to do, use the GNU Lesser General
-Public License instead of this License.  But first, please read
-<https://www.gnu.org/licenses/why-not-lgpl.html>.

README.md

@@ -4,18 +4,44 @@
 
 An experiment in making a [Tidal](https://github.com/tidalcycles/tidal/) using web technologies. This is unstable software, please tread carefully.
 
-Try it here: https://strudel.tidalcycles.org/
+- Try it here: <https://strudel.tidalcycles.org/>
+- Tutorial: <https://strudel.tidalcycles.org/tutorial/>
+- Technical Blog Post: <https://loophole-letters.vercel.app/strudel>
 
-Tutorial: https://strudel.tidalcycles.org/tutorial/
+## Running Locally
 
-## Local development
-
-Run the REPL locally:
+After cloning the project, you can run the REPL locally:
 
 ```bash
-npm install
-npx lerna bootstrap
-cd repl
-npm install
-npm run start
+npm run setup
+npm run repl
 ```
+
+## Using Strudel In Your Project
+
+There are multiple npm packages you can use to use strudel, or only parts of it, in your project:
+
+- [`core`](./packages/core/): tidal pattern engine
+- [`mini`](./packages/mini): mini notation parser + core binding
+- [`eval`](./packages/eval): user code evaluator. syntax sugar + highlighting
+- [`tone`](./packages/tone): bindings for Tone.js instruments and effects
+- [`osc`](./packages/osc): bindings to communicate via OSC
+- [`midi`](./packages/midi): webmidi bindings
+- [`serial`](./packages/serial): webserial bindings
+- [`tonal`](./packages/tonal): tonal functions
+- [`xen`](./packages/xen): microtonal / xenharmonic functions
+- ... [and there are more](./packages/)
+
+Click on the package names to find out more about each one.
+
+## Contributing
+
+There are many ways to contribute to this project! See [contribution guide](./CONTRIBUTING.md).
+
+## Community
+
+There is a #strudel channel on the TidalCycles discord: <https://discord.com/invite/HGEdXmRkzT>
+
+You can also ask questions and find related discussions on the tidal club forum: <https://club.tidalcycles.org/>
+
+The discord and forum is shared with the haskell (tidal) and python (vortex) siblings of this project.

docs/asset-manifest.json

@@ -1,16 +1,16 @@
 {
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+    "main.css": "/static/css/main.35f2ca4c.css",
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+    "static/css/main.35f2ca4c.css",
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   ]
 }

docs/index.html

@@ -1 +1 @@
-<!doctype html><html lang="en"><head><meta charset="utf-8"/><link rel="icon" href="/favicon.ico"/><meta name="viewport" content="width=device-width,initial-scale=1"/><meta name="theme-color" content="#000000"/><meta name="description" content="Strudel REPL"/><title>Strudel REPL</title><script defer="defer" src="/static/js/main.77e38ada.js"></script><link href="/static/css/main.0d689283.css" rel="stylesheet"></head><body><noscript>You need to enable JavaScript to run this app.</noscript><div id="root"></div></body></html>
+<!doctype html><html lang="en"><head><meta charset="utf-8"/><link rel="icon" href="/favicon.ico"/><meta name="viewport" content="width=device-width,initial-scale=1"/><meta name="theme-color" content="#000000"/><meta name="description" content="Strudel REPL"/><title>Strudel REPL</title><script defer="defer" src="/static/js/main.f848d51e.js"></script><link href="/static/css/main.35f2ca4c.css" rel="stylesheet"></head><body><noscript>You need to enable JavaScript to run this app.</noscript><div id="root"></div></body></html>

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-//# sourceMappingURL=787.8f7ec9e0.chunk.js.map

docs/static/js/main.77e38ada.js.LICENSE.txt

@@ -1,56 +0,0 @@
-/*
-object-assign
-(c) Sindre Sorhus
-@license MIT
-*/
-
-/**
- * @license Fraction.js v4.2.0 05/03/2022
- * https://www.xarg.org/2014/03/rational-numbers-in-javascript/
- *
- * Copyright (c) 2021, Robert Eisele (robert@xarg.org)
- * Dual licensed under the MIT or GPL Version 2 licenses.
- **/
-
-/**
- * Tone.js
- * @author Yotam Mann
- * @license http://opensource.org/licenses/MIT MIT License
- * @copyright 2014-2019 Yotam Mann
- */
-
-/** @license React v0.20.2
- * scheduler.production.min.js
- *
- * Copyright (c) Facebook, Inc. and its affiliates.
- *
- * This source code is licensed under the MIT license found in the
- * LICENSE file in the root directory of this source tree.
- */
-
-/** @license React v17.0.2
- * react-dom.production.min.js
- *
- * Copyright (c) Facebook, Inc. and its affiliates.
- *
- * This source code is licensed under the MIT license found in the
- * LICENSE file in the root directory of this source tree.
- */
-
-/** @license React v17.0.2
- * react-jsx-runtime.production.min.js
- *
- * Copyright (c) Facebook, Inc. and its affiliates.
- *
- * This source code is licensed under the MIT license found in the
- * LICENSE file in the root directory of this source tree.
- */
-
-/** @license React v17.0.2
- * react.production.min.js
- *
- * Copyright (c) Facebook, Inc. and its affiliates.
- *
- * This source code is licensed under the MIT license found in the
- * LICENSE file in the root directory of this source tree.
- */

docs/static/js/main.f848d51e.js.LICENSE.txt

@@ -0,0 +1,96 @@
+/* 
+
+Strudel - javascript-based environment for live coding algorithmic (musical) patterns
+https://strudel.tidalcycles.org / https://github.com/tidalcycles/strudel/
+
+Copyright (C) Strudel contributors 
+https://github.com/tidalcycles/strudel/graphs/contributors
+
+This program is free software: you can redistribute it and/or modify
+it under the terms of the GNU Affero General Public License as published by
+the Free Software Foundation, either version 3 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU Affero General Public License for more details.
+
+You should have received a copy of the GNU Affero General Public License
+along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+*/
+
+/*
+object-assign
+(c) Sindre Sorhus
+@license MIT
+*/
+
+/*! *****************************************************************************
+Copyright (c) Microsoft Corporation.
+
+Permission to use, copy, modify, and/or distribute this software for any
+purpose with or without fee is hereby granted.
+
+THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH
+REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
+AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT,
+INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
+LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
+OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
+PERFORMANCE OF THIS SOFTWARE.
+***************************************************************************** */
+
+/*! @license ReactCodeMirror - MIT License - Tom Golden (8162045+tbjgolden@users.noreply.github.com) */
+
+/**
+ * @license Fraction.js v4.2.0 05/03/2022
+ * https://www.xarg.org/2014/03/rational-numbers-in-javascript/
+ *
+ * Copyright (c) 2021, Robert Eisele (robert@xarg.org)
+ * Dual licensed under the MIT or GPL Version 2 licenses.
+ **/
+
+/**
+ * Tone.js
+ * @author Yotam Mann
+ * @license http://opensource.org/licenses/MIT MIT License
+ * @copyright 2014-2019 Yotam Mann
+ */
+
+/** @license React v0.20.2
+ * scheduler.production.min.js
+ *
+ * Copyright (c) Facebook, Inc. and its affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+
+/** @license React v17.0.2
+ * react-dom.production.min.js
+ *
+ * Copyright (c) Facebook, Inc. and its affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+
+/** @license React v17.0.2
+ * react-jsx-runtime.production.min.js
+ *
+ * Copyright (c) Facebook, Inc. and its affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+
+/** @license React v17.0.2
+ * react.production.min.js
+ *
+ * Copyright (c) Facebook, Inc. and its affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */

docs/tutorial/index.html

@@ -1 +1 @@
-<!DOCTYPE html><html lang="en"><head><meta charset="utf-8"><link rel="icon" href="/tutorial/favicon.e3ab9dd9.ico"><link rel="stylesheet" type="text/css" href="/tutorial/index.999678aa.css"><meta name="viewport" content="width=device-width, initial-scale=1"><meta name="description" content="Strudel REPL"><title>Strudel Tutorial</title></head><body> <div id="root"></div> <noscript>You need to enable JavaScript to run this app.</noscript> <script src="/tutorial/index.097d520a.js" defer></script> </body></html>
+<!DOCTYPE html><html lang="en"><head><meta charset="utf-8"><link rel="icon" href="/tutorial/favicon.e3ab9dd9.ico"><link rel="stylesheet" type="text/css" href="/tutorial/index.a3acddda.css"><meta name="viewport" content="width=device-width, initial-scale=1"><meta name="description" content="Strudel REPL"><title>Strudel Tutorial</title></head><body> <div id="root"></div> <noscript>You need to enable JavaScript to run this app.</noscript> <script src="/tutorial/index.55306425.js" defer></script> </body></html>

featurelist.md

@@ -1,128 +0,0 @@
-# Tidal Features in Strudel
-
-## Basics
-
-- [ ] drawLine
-- [ ] setcps
-- [ ] naming patterns? block based evaluation?
-- [ ] once
-- [ ] silence
-- [x] hush
-- [ ] panic
-
-## Concatenation
-
-https://tidalcycles.org/docs/patternlib/tour/concatenation
-
-- [x] cat: is synonym to fastcat in strudel, while [in tidal, cat is slowcat](https://tidalcycles.org/docs/patternlib/tour/concatenation#cat)
-- [x] fastcat
-- [x] timeCat: why is this camel case?
-- [ ] randcat
-- [x] append: but is like fastAppend in tidal
-- [ ] fastAppend
-- [ ] slowAppend
-- [ ] wedge
-- [ ] brak
-- [ ] flatpat
-
-## Accumulation
-
-- [ ] overlay => like stack? "The overlay function is similar to cat" => wrong?
-- [ ] `<>` operator (=== overlay)
-- [x] stack
-- [x] superimpose => strudel supports multiple args => is this layer?
-- [ ] layer => is this like superimpose but with multiple args?
-- [ ] steps ?
-- [ ] iter, iter'
-
-## Alteration
-
-- [ ] range, rangex
-- [ ] quantise
-- [ ] ply
-- [ ] stutter
-- [ ] stripe, slowstripe
-- [ ] palindrome = every(2, rev)
-- [ ] trunc
-- [ ] linger
-- [ ] chunk, chunk'
-- [ ] shuffle
-- [ ] scramble
-- [ ] rot
-- [ ] step / step'
-- [ ] lindenmeyer
-- [ ] spread / spreadf / fastspread
-- [ ] spreadChoose / spreadr
-
-## conditions
-
-- [x] every
-- [ ] every'
-- [ ] whenmod
-- [ ] sometimes, sometimesBy, someCycles, someCyclesBy
-- [ ] choose, chooseby, wchoose, wchooseby
-- [x] struct
-- [x] mask
-- [ ] sew
-- [ ] stitch
-- [ ] select, selectF
-- [ ] pickF
-- [ ] squeeze
-- [ ] euclid, euclidInv, euclidFull
-- [ ] ifp
-
-## Time
-
-- [x] fast
-- [x] fastGap
-- [x] slow
-- [ ] hurry
-- [ ] compress: is this compressSpan?
-- [ ] zoom
-- [ ] within
-- [x] off
-- [ ] rotL / rotR
-- [x] rev
-- [ ] jux / juxBy
-- [ ] swingBy / swing
-- [ ] ghost
-- [ ] inside / outside
-
-## Harmony & Melody
-
-- [x] scale
-- [ ] scaleList
-- [ ] getScale
-- [ ] toScale
-- [ ] chordList
-- [ ] arpeggiate
-- [ ] arp
-
-## Transitions
-
-- [ ] anticipate / anticipateIn
-- [ ] clutch / clutchIn
-- [ ] histpan
-- [ ] interpolate / interpolateIn
-- [ ] jump / jumpIn / jumpIn' / jumpMod
-- [ ] wait / waitT
-- [ ] wash / washIn
-- [ ] xfade / xfadeIn
-
-## Sampling
-
-- [ ] chop
-- [ ] striate / striateBy
-- [ ] loopAt
-- [ ] segment
-- [ ] discretise
-
-## Randomness
-
-- [ ] rand / irand
-- [ ] perlin / perlinWith / perlin2 / perlin2With
-
-## Composition
-
-- [ ] ur
-- [ ] seqP / seqPLoop

index.html

@@ -1,14 +0,0 @@
-<!DOCTYPE html>
-<script>import("./strudel.js").then(m => strudel = m)
-</script>
-<html>
-    <head>
-        <title>Bingo</title>
-    </head>
-    <body>
-        <button onclick="foo()">hello</button>
-        <button onclick="bar()">hello</button>
-
-        <script type="module" src="./strudel.js"></script>
-    </body>
-</html>

jsdoc.config.json

@@ -0,0 +1,11 @@
+{
+  "source": {
+    "includePattern": ".+\\.(js(doc|x)?|mjs)$",
+    "excludePattern": "node_modules|shift-parser|shift-reducer|shift-traverser"
+  },
+  "plugins": ["plugins/markdown"],
+  "opts": {
+    "destination": "./out/",
+    "recurse": true
+  }
+}

package.json

@@ -3,10 +3,17 @@
   "version": "0.0.1",
   "private": true,
   "description": "Port of tidalcycles to javascript",
-  "main": "strudel.mjs",
   "scripts": {
-    "test": "npm run test --workspaces --if-present",
-    "bootstrap": "lerna bootstrap"
+    "test": "npm run test --workspaces --if-present && cd repl && npm run test",
+    "bootstrap": "lerna bootstrap",
+    "setup": "npm i && npm run bootstrap && cd repl && npm i",
+    "repl": "cd repl && npm run dev",
+    "osc": "cd packages/osc && npm run server",
+    "build": "rm -rf out && cd repl && npm run build && cd ../tutorial && npm run build",
+    "preview": "npx serve ./out",
+    "deploy": "gh-pages -d out",
+    "jsdoc": "jsdoc packages/ -c jsdoc.config.json",
+    "jsdoc-json": "jsdoc packages/ --template ./node_modules/jsdoc-json --destination doc.json -c jsdoc.config.json"
   },
   "workspaces": [
     "packages/*"
@@ -23,13 +30,17 @@
     "algorave"
   ],
   "author": "Alex McLean <alex@slab.org> (https://slab.org)",
-  "license": "GPL-3.0-or-later",
+  "license": "AGPL-3.0-or-later",
   "bugs": {
     "url": "https://github.com/tidalcycles/strudel/issues"
   },
   "homepage": "https://strudel.tidalcycles.org",
   "devDependencies": {
     "events": "^3.3.0",
+    "gh-pages": "^4.0.0",
+    "jsdoc": "^3.6.10",
+    "jsdoc-json": "^2.0.2",
+    "jsdoc-to-markdown": "^7.1.1",
     "lerna": "^4.0.0",
     "mocha": "^9.1.4"
   }

packages/core/README.md

@@ -11,18 +11,18 @@ npm i @strudel.cycles/core --save
 ## Example
 
 ```js
-import { sequence, State, TimeSpan } from '@strudel.cycles/core';
+import { sequence } from '@strudel.cycles/core';
 
 const pattern = sequence('a', ['b', 'c']);
 
-const events = pattern.query(new State(new TimeSpan(0, 2)));
+const events = pattern.queryArc(0, 1);
 
 const spans = events.map(
   (event) => `${event.value}: ${event.whole.begin.toFraction()} - ${event.whole.end.toFraction()} `,
 );
 ```
 
-spans:
+yields:
 
 ```log
 a: 0 - 1/2
@@ -33,4 +33,6 @@ b: 3/2 - 7/4
 c: 7/4 - 2
 ```
 
-[play with @strudel.cycles/core on codesandbox](https://codesandbox.io/s/strudel-core-test-qmz6qr?file=/src/index.js).
+- [play with @strudel.cycles/core on codesandbox](https://codesandbox.io/s/strudel-core-test-qmz6qr?file=/src/index.js).
+- [open color pattern example](https://raw.githack.com/tidalcycles/strudel/package-examples/packages/core/examples/canvas.html)
+- [open minimal repl example](https://raw.githack.com/tidalcycles/strudel/package-examples/packages/core/examples/metro.html)

packages/core/controls.mjs

@@ -0,0 +1,294 @@
+/*
+controls.mjs - <short description TODO>
+Copyright (C) 2022 Strudel contributors - see <https://github.com/tidalcycles/strudel/blob/main/packages/core/controls.mjs>
+This program is free software: you can redistribute it and/or modify it under the terms of the GNU Affero General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Affero General Public License for more details. You should have received a copy of the GNU Affero General Public License along with this program.  If not, see <https://www.gnu.org/licenses/>.
+*/
+
+import { Pattern, sequence } from './pattern.mjs';
+
+const controls = {};
+const generic_params = [
+  ['s', 's', 'sound'],
+  //['s', 'toArg', 'for internal sound routing'],
+  // ["f", "from", "for internal sound routing"),
+  //['f', 'to', 'for internal sound routing'],
+  ['f', 'accelerate', 'a pattern of numbers that speed up (or slow down) samples while they play.'],
+  ['f', 'amp', 'like @gain@, but linear.'],
+  [
+    'f',
+    'attack',
+    'a pattern of numbers to specify the attack time (in seconds) of an envelope applied to each sample.',
+  ],
+  ['f', 'bandf', 'a pattern of numbers from 0 to 1. Sets the center frequency of the band-pass filter.'],
+  ['f', 'bandq', 'a pattern of anumbers from 0 to 1. Sets the q-factor of the band-pass filter.'],
+  [
+    'f',
+    'begin',
+    'a pattern of numbers from 0 to 1. Skips the beginning of each sample, e.g. `0.25` to cut off the first quarter from each sample.',
+  ],
+  ['f', 'legato', 'controls the amount of overlap between two adjacent sounds'],
+  // ['f', 'clhatdecay', ''],
+  [
+    'f',
+    'crush',
+    'bit crushing, a pattern of numbers from 1 (for drastic reduction in bit-depth) to 16 (for barely no reduction).',
+  ],
+  [
+    'f',
+    'coarse',
+    'fake-resampling, a pattern of numbers for lowering the sample rate, i.e. 1 for original 2 for half, 3 for a third and so on.',
+  ],
+  ['i', 'channel', 'choose the channel the pattern is sent to in superdirt'],
+  [
+    'i',
+    'cut',
+    'In the style of classic drum-machines, `cut` will stop a playing sample as soon as another samples with in same cutgroup is to be played. An example would be an open hi-hat followed by a closed one, essentially muting the open.',
+  ],
+  ['f', 'cutoff', 'a pattern of numbers from 0 to 1. Applies the cutoff frequency of the low-pass filter.'],
+  // ['f', 'cutoffegint', ''],
+  ['f', 'decay', ''],
+  ['f', 'delay', 'a pattern of numbers from 0 to 1. Sets the level of the delay signal.'],
+  ['f', 'delayfeedback', 'a pattern of numbers from 0 to 1. Sets the amount of delay feedback.'],
+  ['f', 'delaytime', 'a pattern of numbers from 0 to 1. Sets the length of the delay.'],
+  ['f', 'detune', ''],
+  ['f', 'djf', 'DJ filter, below 0.5 is low pass filter, above is high pass filter.'],
+  [
+    'f',
+    'dry',
+    'when set to `1` will disable all reverb for this pattern. See `room` and `size` for more information about reverb.',
+  ],
+  [
+    'f',
+    'end',
+    'the same as `begin`, but cuts the end off samples, shortening them; e.g. `0.75` to cut off the last quarter of each sample.',
+  ],
+  [
+    'f',
+    'fadeTime',
+    "Used when using begin/end or chop/striate and friends, to change the fade out time of the 'grain' envelope.",
+  ],
+  [
+    'f',
+    'fadeInTime',
+    'As with fadeTime, but controls the fade in time of the grain envelope. Not used if the grain begins at position 0 in the sample.',
+  ],
+  ['f', 'freq', ''],
+  [
+    'f',
+    'gain',
+    'a pattern of numbers that specify volume. Values less than 1 make the sound quieter. Values greater than 1 make the sound louder. For the linear equivalent, see @amp@.',
+  ],
+  ['f', 'gate', ''],
+  // ['f', 'hatgrain', ''],
+  [
+    'f',
+    'hcutoff',
+    'a pattern of numbers from 0 to 1. Applies the cutoff frequency of the high-pass filter. Also has alias @hpf@',
+  ],
+  [
+    'f',
+    'hold',
+    'a pattern of numbers to specify the hold time (in seconds) of an envelope applied to each sample. Only takes effect if `attack` and `release` are also specified.',
+  ],
+  [
+    'f',
+    'hresonance',
+    'a pattern of numbers from 0 to 1. Applies the resonance of the high-pass filter. Has alias @hpq@',
+  ],
+  // ['f', 'lagogo', ''],
+  // ['f', 'lclap', ''],
+  // ['f', 'lclaves', ''],
+  // ['f', 'lclhat', ''],
+  // ['f', 'lcrash', ''],
+  ['f', 'leslie', ''],
+  ['f', 'lrate', ''],
+  ['f', 'lsize', ''],
+  // ['f', 'lfo', ''],
+  // ['f', 'lfocutoffint', ''],
+  // ['f', 'lfodelay', ''],
+  // ['f', 'lfoint', ''],
+  // ['f', 'lfopitchint', ''],
+  // ['f', 'lfoshape', ''],
+  // ['f', 'lfosync', ''],
+  // ['f', 'lhitom', ''],
+  // ['f', 'lkick', ''],
+  // ['f', 'llotom', ''],
+  [
+    'f',
+    'lock',
+    'A pattern of numbers. Specifies whether delaytime is calculated relative to cps. When set to 1, delaytime is a direct multiple of a cycle.',
+  ],
+  ['f', 'loop', 'loops the sample (from `begin` to `end`) the specified number of times.'],
+  // ['f', 'lophat', ''],
+  // ['f', 'lsnare', ''],
+  ['f', 'n', 'The note or sample number to choose for a synth or sampleset'],
+  ['f', 'note', 'The note or pitch to play a sound or synth with'],
+  ['f', 'degree', ''],
+  ['f', 'mtranspose', ''],
+  ['f', 'ctranspose', ''],
+  ['f', 'harmonic', ''],
+  ['f', 'stepsPerOctave', ''],
+  ['f', 'octaveR', ''],
+  [
+    'f',
+    'nudge',
+    'Nudges events into the future by the specified number of seconds. Negative numbers work up to a point as well (due to internal latency)',
+  ],
+  ['i', 'octave', ''],
+  ['f', 'offset', ''],
+  // ['f', 'ophatdecay', ''],
+  [
+    'i',
+    'orbit',
+    'a pattern of numbers. An `orbit` is a global parameter context for patterns. Patterns with the same orbit will share hardware output bus offset and global effects, e.g. reverb and delay. The maximum number of orbits is specified in the superdirt startup, numbers higher than maximum will wrap around.',
+  ],
+  ['f', 'overgain', ''],
+  ['f', 'overshape', ''],
+  [
+    'f',
+    'pan',
+    'a pattern of numbers between 0 and 1, from left to right (assuming stereo), once round a circle (assuming multichannel)',
+  ],
+  [
+    'f',
+    'panspan',
+    'a pattern of numbers between -inf and inf, which controls how much multichannel output is fanned out (negative is backwards ordering)',
+  ],
+  [
+    'f',
+    'pansplay',
+    'a pattern of numbers between 0.0 and 1.0, which controls the multichannel spread range (multichannel only)',
+  ],
+  [
+    'f',
+    'panwidth',
+    'a pattern of numbers between 0.0 and inf, which controls how much each channel is distributed over neighbours (multichannel only)',
+  ],
+  [
+    'f',
+    'panorient',
+    'a pattern of numbers between -1.0 and 1.0, which controls the relative position of the centre pan in a pair of adjacent speakers (multichannel only)',
+  ],
+  // ['f', 'pitch1', ''],
+  // ['f', 'pitch2', ''],
+  // ['f', 'pitch3', ''],
+  // ['f', 'portamento', ''],
+  ['f', 'rate', "used in SuperDirt softsynths as a control rate or 'speed'"],
+  [
+    'f',
+    'release',
+    'a pattern of numbers to specify the release time (in seconds) of an envelope applied to each sample.',
+  ],
+  ['f', 'resonance', 'a pattern of numbers from 0 to 1. Specifies the resonance of the low-pass filter.'],
+  ['f', 'room', 'a pattern of numbers from 0 to 1. Sets the level of reverb.'],
+  // ['f', 'sagogo', ''],
+  // ['f', 'sclap', ''],
+  // ['f', 'sclaves', ''],
+  // ['f', 'scrash', ''],
+  ['f', 'semitone', ''],
+  [
+    'f',
+    'shape',
+    'wave shaping distortion, a pattern of numbers from 0 for no distortion up to 1 for loads of distortion.',
+  ],
+  [
+    'f',
+    'size',
+    'a pattern of numbers from 0 to 1. Sets the perceptual size (reverb time) of the `room` to be used in reverb.',
+  ],
+  ['f', 'slide', ''],
+  [
+    'f',
+    'speed',
+    'a pattern of numbers which changes the speed of sample playback, i.e. a cheap way of changing pitch. Negative values will play the sample backwards!',
+  ],
+  ['f', 'squiz', ''],
+  ['f', 'stutterdepth', ''],
+  ['f', 'stuttertime', ''],
+  ['f', 'sustain', ''],
+  ['f', 'timescale', ''],
+  ['f', 'timescalewin', ''],
+  // ['f', 'tomdecay', ''],
+  [
+    's',
+    'unit',
+    'used in conjunction with `speed`, accepts values of "r" (rate, default behavior), "c" (cycles), or "s" (seconds). Using `unit "c"` means `speed` will be interpreted in units of cycles, e.g. `speed "1"` means samples will be stretched to fill a cycle. Using `unit "s"` means the playback speed will be adjusted so that the duration is the number of seconds specified by `speed`.',
+  ],
+  ['f', 'velocity', ''],
+  // ['f', 'vcfegint', ''],
+  // ['f', 'vcoegint', ''],
+  ['f', 'voice', ''],
+  [
+    's',
+    'vowel',
+    'formant filter to make things sound like vowels, a pattern of either `a`, `e`, `i`, `o` or `u`. Use a rest (`~`) for no effect.',
+  ],
+  ['f', 'waveloss', ''],
+  ['f', 'dur', ''],
+  // ['f', 'modwheel', ''],
+  ['f', 'expression', ''],
+  ['f', 'sustainpedal', ''],
+  ['f', 'tremolodepth', "Tremolo Audio DSP effect | params are 'tremolorate' and 'tremolodepth'"],
+  ['f', 'tremolorate', "Tremolo Audio DSP effect | params are 'tremolorate' and 'tremolodepth'"],
+  ['f', 'phaserdepth', "Phaser Audio DSP effect | params are 'phaserrate' and 'phaserdepth'"],
+  ['f', 'phaserrate', "Phaser Audio DSP effect | params are 'phaserrate' and 'phaserdepth'"],
+  ['f', 'fshift', 'frequency shifter'],
+  ['f', 'fshiftnote', 'frequency shifter'],
+  ['f', 'fshiftphase', 'frequency shifter'],
+  ['f', 'triode', 'tube distortion'],
+  ['f', 'krush', 'shape/bass enhancer'],
+  ['f', 'kcutoff', ''],
+  ['f', 'octer', 'octaver effect'],
+  ['f', 'octersub', 'octaver effect'],
+  ['f', 'octersubsub', 'octaver effect'],
+  ['f', 'ring', 'ring modulation'],
+  ['f', 'ringf', 'ring modulation'],
+  ['f', 'ringdf', 'ring modulation'],
+  ['f', 'distort', 'noisy fuzzy distortion'],
+  ['f', 'freeze', 'Spectral freeze'],
+  ['f', 'xsdelay', ''],
+  ['f', 'tsdelay', ''],
+  ['f', 'real', 'Spectral conform'],
+  ['f', 'imag', ''],
+  ['f', 'enhance', 'Spectral enhance'],
+  ['f', 'partials', ''],
+  ['f', 'comb', 'Spectral comb'],
+  ['f', 'smear', 'Spectral smear'],
+  ['f', 'scram', 'Spectral scramble'],
+  ['f', 'binshift', 'Spectral binshift'],
+  ['f', 'hbrick', 'High pass sort of spectral filter'],
+  ['f', 'lbrick', 'Low pass sort of spectral filter'],
+  ['f', 'midichan', ''],
+  ['f', 'control', ''],
+  ['f', 'ccn', ''],
+  ['f', 'ccv', ''],
+  ['f', 'polyTouch', ''],
+  ['f', 'midibend', ''],
+  ['f', 'miditouch', ''],
+  ['f', 'ctlNum', ''],
+  ['f', 'frameRate', ''],
+  ['f', 'frames', ''],
+  ['f', 'hours', ''],
+  ['s', 'midicmd', ''],
+  ['f', 'minutes', ''],
+  ['f', 'progNum', ''],
+  ['f', 'seconds', ''],
+  ['f', 'songPtr', ''],
+  ['f', 'uid', ''],
+  ['f', 'val', ''],
+  ['f', 'cps', ''],
+];
+
+const _name = (name, ...pats) => sequence(...pats).withValue((x) => ({ [name]: x }));
+
+const _setter = (func) =>
+  function (...pats) {
+    return this.set(func(...pats));
+  };
+
+generic_params.forEach(([type, name, description]) => {
+  controls[name] = (...pats) => _name(name, ...pats);
+  Pattern.prototype[name] = _setter(controls[name]);
+});
+
+export default controls;

packages/core/drawLine.mjs

@@ -0,0 +1,45 @@
+/*
+drawLine.mjs - <short description TODO>
+Copyright (C) 2022 Strudel contributors - see <https://github.com/tidalcycles/strudel/blob/main/packages/core/drawLine.mjs>
+This program is free software: you can redistribute it and/or modify it under the terms of the GNU Affero General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Affero General Public License for more details. You should have received a copy of the GNU Affero General Public License along with this program.  If not, see <https://www.gnu.org/licenses/>.
+*/
+
+import Fraction, { gcd } from './fraction.mjs';
+
+function drawLine(pat, chars = 60) {
+  let cycle = 0;
+  let pos = Fraction(0);
+  let lines = [''];
+  let emptyLine = ''; // this will be the "reference" empty line, which will be copied into extra lines
+  while (lines[0].length < chars) {
+    const haps = pat.queryArc(cycle, cycle + 1);
+    const durations = haps.filter((hap) => hap.hasOnset()).map((hap) => hap.duration);
+    const charFraction = gcd(...durations);
+    const totalSlots = charFraction.inverse(); // number of character slots for the current cycle
+    lines = lines.map((line) => line + '|'); // add pipe character before each cycle
+    emptyLine += '|';
+    for (let i = 0; i < totalSlots; i++) {
+      const [begin, end] = [pos, pos.add(charFraction)];
+      const matches = haps.filter((hap) => hap.whole.begin.lte(begin) && hap.whole.end.gte(end));
+      const missingLines = matches.length - lines.length;
+      if (missingLines > 0) {
+        lines = lines.concat(Array(missingLines).fill(emptyLine));
+      }
+      lines = lines.map((line, i) => {
+        const hap = matches[i];
+        if (hap) {
+          const isOnset = hap.whole.begin.eq(begin);
+          const char = isOnset ? '' + hap.value : '-';
+          return line + char;
+        }
+        return line + '.';
+      });
+      emptyLine += '.';
+      pos = pos.add(charFraction);
+    }
+    cycle++;
+  }
+  return lines.join('\n');
+}
+
+export default drawLine;

packages/core/euclid.mjs

@@ -1,4 +1,10 @@
-import { Pattern, timeCat } from './strudel.mjs';
+/*
+euclid.mjs - <short description TODO>
+Copyright (C) 2022 Strudel contributors - see <https://github.com/tidalcycles/strudel/blob/main/packages/core/euclid.mjs>
+This program is free software: you can redistribute it and/or modify it under the terms of the GNU Affero General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Affero General Public License for more details. You should have received a copy of the GNU Affero General Public License along with this program.  If not, see <https://www.gnu.org/licenses/>.
+*/
+
+import { Pattern, timeCat } from './pattern.mjs';
 import bjork from 'bjork';
 import { rotate } from './util.mjs';
 import Fraction from './fraction.mjs';

packages/core/examples/basic.html

@@ -0,0 +1,26 @@
+<input
+  type="text"
+  id="text"
+  value="cat('a', 'b')"
+  style="width: 100%; font-size: 2em; outline: none; margin-bottom: 10px"
+  spellcheck="false"
+/>
+<div id="output"></div>
+<script type="module">
+  const strudel = await import('https://cdn.skypack.dev/@strudel.cycles/core@0.0.2');
+  Object.assign(window, strudel); // assign all strudel functions to global scope to use with eval
+  const input = document.getElementById('text');
+  const getEvents = () => {
+    const code = document.getElementById('text').value;
+    const pattern = eval(code);
+    const events = pattern.firstCycle();
+    console.log(code, '->', events);
+    document.getElementById('output').innerHTML = events.map((e) => e.show()).join('<br/>');
+  };
+  getEvents();
+  input.addEventListener('input', () => getEvents());
+</script>
+<p>
+  This page shows how skypack can be used to import strudel core directly into a simple html page. <br />
+  No server, no bundler and no build setup is needed to run this!
+</p>

packages/core/examples/canvas.html

@@ -0,0 +1,34 @@
+<body style="margin: 0">
+  <input
+    type="text"
+    id="text"
+    value="cat('orange', 'indigo')"
+    style="width: 100%; font-size: 2em; background: black; color: white; outline: none; position: absolute; top: 0"
+    spellcheck="false"
+  />
+  <canvas id="canvas"></canvas>
+  <script type="module">
+    const strudel = await import('https://cdn.skypack.dev/@strudel.cycles/core@0.0.2');
+    // this adds all strudel functions to the global scope, to be used by eval
+    Object.assign(window, strudel);
+    // setup elements
+    const input = document.getElementById('text');
+    const canvas = document.getElementById('canvas');
+    canvas.width = window.innerWidth;
+    canvas.height = window.innerHeight;
+    const ctx = canvas.getContext('2d');
+    input.focus(); // autofocus
+    input.setSelectionRange(input.value.length, input.value.length); // move cursor to end
+    paint(input.value); // initial paint
+    input.addEventListener('input', (e) => paint(e.target.value)); // repaint on input
+
+    function paint(code) {
+      const pattern = eval(code); // run code
+      const events = pattern.firstCycle(); // query first cycle
+      events.forEach((event) => {
+        ctx.fillStyle = event.value;
+        ctx.fillRect(event.whole.begin * canvas.width, 0, event.duration.valueOf() * canvas.width, canvas.height);
+      });
+    }
+  </script>
+</body>

packages/core/fraction.mjs

@@ -1,5 +1,11 @@
+/*
+fraction.mjs - <short description TODO>
+Copyright (C) 2022 Strudel contributors - see <https://github.com/tidalcycles/strudel/blob/main/packages/core/fraction.mjs>
+This program is free software: you can redistribute it and/or modify it under the terms of the GNU Affero General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Affero General Public License for more details. You should have received a copy of the GNU Affero General Public License along with this program.  If not, see <https://www.gnu.org/licenses/>.
+*/
+
 import Fraction from 'fraction.js';
-import { TimeSpan } from './strudel.mjs';
+import { TimeSpan } from './timespan.mjs';
 
 // Returns the start of the cycle.
 Fraction.prototype.sam = function () {
@@ -16,6 +22,11 @@ Fraction.prototype.wholeCycle = function () {
   return new TimeSpan(this.sam(), this.nextSam());
 };
 
+// The position of a time value relative to the start of its cycle.
+Fraction.prototype.cyclePos = function () {
+  return this.sub(this.sam());
+};
+
 Fraction.prototype.lt = function (other) {
   return this.compare(other) < 0;
 };
@@ -67,6 +78,12 @@ const fraction = (n) => {
   return Fraction(n);
 };
 
+export const gcd = (...fractions) => {
+  return fractions.reduce((gcd, fraction) => gcd.gcd(fraction), fraction(1));
+};
+
+fraction._original = Fraction;
+
 export default fraction;
 
 // "If you concern performance, cache Fraction.js objects and pass arrays/objects.“

packages/core/gist.js

@@ -1,3 +1,9 @@
+/*
+gist.js - <short description TODO>
+Copyright (C) 2022 Strudel contributors - see <https://github.com/tidalcycles/strudel/blob/main/packages/core/gist.js>
+This program is free software: you can redistribute it and/or modify it under the terms of the GNU Affero General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Affero General Public License for more details. You should have received a copy of the GNU Affero General Public License along with this program.  If not, see <https://www.gnu.org/licenses/>.
+*/
+
 // this is a shortcut to eval code from a gist
 // why? to be able to shorten strudel code + e.g. be able to change instruments after links have been generated
 export default (route) =>

packages/core/hap.mjs

@@ -0,0 +1,106 @@
+/*
+hap.mjs - <short description TODO>
+Copyright (C) 2022 Strudel contributors - see <https://github.com/tidalcycles/strudel/blob/main/packages/core/hap.mjs>
+This program is free software: you can redistribute it and/or modify it under the terms of the GNU Affero General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Affero General Public License for more details. You should have received a copy of the GNU Affero General Public License along with this program.  If not, see <https://www.gnu.org/licenses/>.
+*/
+
+export class Hap {
+  /*
+      Event class, representing a value active during the timespan
+      'part'. This might be a fragment of an event, in which case the
+      timespan will be smaller than the 'whole' timespan, otherwise the
+      two timespans will be the same. The 'part' must never extend outside of the
+      'whole'. If the event represents a continuously changing value
+      then the whole will be returned as None, in which case the given
+      value will have been sampled from the point halfway between the
+      start and end of the 'part' timespan.
+      The context is to store a list of source code locations causing the event.
+
+      The word 'Event' is more or less a reserved word in javascript, hence this
+      class is named called 'Hap'.
+      */
+
+  constructor(whole, part, value, context = {}, stateful = false) {
+    this.whole = whole;
+    this.part = part;
+    this.value = value;
+    this.context = context;
+    this.stateful = stateful;
+    if (stateful) {
+      console.assert(typeof this.value === 'function', 'Stateful values must be functions');
+    }
+  }
+
+  get duration() {
+    return this.whole.end.sub(this.whole.begin);
+  }
+
+  wholeOrPart() {
+    return this.whole ? this.whole : this.part;
+  }
+
+  withSpan(func) {
+    // Returns a new hap with the function f applies to the hap timespan.
+    const whole = this.whole ? func(this.whole) : undefined;
+    return new Hap(whole, func(this.part), this.value, this.context);
+  }
+
+  withValue(func) {
+    // Returns a new hap with the function f applies to the hap value.
+    return new Hap(this.whole, this.part, func(this.value), this.context);
+  }
+
+  hasOnset() {
+    // Test whether the hap contains the onset, i.e that
+    // the beginning of the part is the same as that of the whole timespan."""
+    return this.whole != undefined && this.whole.begin.equals(this.part.begin);
+  }
+
+  resolveState(state) {
+    if (this.stateful && this.hasOnset()) {
+      console.log('stateful');
+      const func = this.value;
+      const [newState, newValue] = func(state);
+      return [newState, new Hap(this.whole, this.part, newValue, this.context, false)];
+    }
+    return [state, this];
+  }
+
+  spanEquals(other) {
+    return (this.whole == undefined && other.whole == undefined) || this.whole.equals(other.whole);
+  }
+
+  equals(other) {
+    return (
+      this.spanEquals(other) &&
+      this.part.equals(other.part) &&
+      // TODO would == be better ??
+      this.value === other.value
+    );
+  }
+
+  show() {
+    return (
+      '(' + (this.whole == undefined ? '~' : this.whole.show()) + ', ' + this.part.show() + ', ' + this.value + ')'
+    );
+  }
+
+  showWhole() {
+    return `${this.whole == undefined ? '~' : this.whole.show()}: ${this.value}`;
+  }
+
+  showWhole() {
+    return `${this.whole == undefined ? '~' : this.whole.show()}: ${this.value}`;
+  }
+
+  combineContext(b) {
+    const a = this;
+    return { ...a.context, ...b.context, locations: (a.context.locations || []).concat(b.context.locations || []) };
+  }
+
+  setContext(context) {
+    return new Hap(this.whole, this.part, this.value, context);
+  }
+}
+
+export default Hap;

packages/core/index.mjs

@@ -0,0 +1,19 @@
+/*
+index.mjs - <short description TODO>
+Copyright (C) 2022 Strudel contributors - see <https://github.com/tidalcycles/strudel/blob/main/packages/core/index.mjs>
+This program is free software: you can redistribute it and/or modify it under the terms of the GNU Affero General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Affero General Public License for more details. You should have received a copy of the GNU Affero General Public License along with this program.  If not, see <https://www.gnu.org/licenses/>.
+*/
+
+export * from './controls.mjs';
+export * from './euclid.mjs';
+import Fraction from './fraction.mjs';
+export { Fraction };
+export * from './hap.mjs';
+export * from './pattern.mjs';
+export * from './signal.mjs';
+export * from './state.mjs';
+export * from './timespan.mjs';
+export * from './util.mjs';
+export * from './speak.mjs';
+export * as gist from './gist.js';
+// export * from './value.mjs';

packages/core/package-lock.json

@@ -1,17 +1,16 @@
 {
 	"name": "@strudel.cycles/core",
-	"version": "0.0.2",
+	"version": "0.1.0",
 	"lockfileVersion": 2,
 	"requires": true,
 	"packages": {
 		"": {
 			"name": "@strudel.cycles/core",
-			"version": "0.0.1",
+			"version": "0.0.3",
 			"license": "GPL-3.0-or-later",
 			"dependencies": {
 				"bjork": "^0.0.1",
-				"fraction.js": "^4.2.0",
-				"ramda": "^0.28.0"
+				"fraction.js": "^4.2.0"
 			},
 			"devDependencies": {
 				"mocha": "^9.2.2"
@@ -733,15 +732,6 @@
 				"url": "https://github.com/sponsors/jonschlinkert"
 			}
 		},
-		"node_modules/ramda": {
-			"version": "0.28.0",
-			"resolved": "https://registry.npmjs.org/ramda/-/ramda-0.28.0.tgz",
-			"integrity": "sha512-9QnLuG/kPVgWvMQ4aODhsBUFKOUmnbUnsSXACv+NCQZcHbeb+v8Lodp8OVxtRULN1/xOyYLLaL6npE6dMq5QTA==",
-			"funding": {
-				"type": "opencollective",
-				"url": "https://opencollective.com/ramda"
-			}
-		},
 		"node_modules/randombytes": {
 			"version": "2.1.0",
 			"resolved": "https://registry.npmjs.org/randombytes/-/randombytes-2.1.0.tgz",
@@ -1485,11 +1475,6 @@
 			"integrity": "sha512-JU3teHTNjmE2VCGFzuY8EXzCDVwEqB2a8fsIvwaStHhAWJEeVd1o1QD80CU6+ZdEXXSLbSsuLwJjkCBWqRQUVA==",
 			"dev": true
 		},
-		"ramda": {
-			"version": "0.28.0",
-			"resolved": "https://registry.npmjs.org/ramda/-/ramda-0.28.0.tgz",
-			"integrity": "sha512-9QnLuG/kPVgWvMQ4aODhsBUFKOUmnbUnsSXACv+NCQZcHbeb+v8Lodp8OVxtRULN1/xOyYLLaL6npE6dMq5QTA=="
-		},
 		"randombytes": {
 			"version": "2.1.0",
 			"resolved": "https://registry.npmjs.org/randombytes/-/randombytes-2.1.0.tgz",

packages/core/package.json

@@ -1,8 +1,8 @@
 {
   "name": "@strudel.cycles/core",
-  "version": "0.0.2",
+  "version": "0.1.0",
   "description": "Port of Tidal Cycles to JavaScript",
-  "main": "strudel.mjs",
+  "main": "index.mjs",
   "type": "module",
   "scripts": {
     "test": "mocha --colors"
@@ -19,17 +19,17 @@
     "algorave"
   ],
   "author": "Alex McLean <alex@slab.org> (https://slab.org)",
-  "license": "GPL-3.0-or-later",
+  "license": "AGPL-3.0-or-later",
   "bugs": {
     "url": "https://github.com/tidalcycles/strudel/issues"
   },
   "homepage": "https://strudel.tidalcycles.org",
   "dependencies": {
     "bjork": "^0.0.1",
-    "fraction.js": "^4.2.0",
-    "ramda": "^0.28.0"
+    "fraction.js": "^4.2.0"
   },
   "devDependencies": {
     "mocha": "^9.2.2"
-  }
+  },
+  "gitHead": "0e26d4e741500f5bae35b023608f062a794905c2"
 }

packages/core/signal.mjs

@@ -0,0 +1,218 @@
+/*
+signal.mjs - <short description TODO>
+Copyright (C) 2022 Strudel contributors - see <https://github.com/tidalcycles/strudel/blob/main/packages/core/signal.mjs>
+This program is free software: you can redistribute it and/or modify it under the terms of the GNU Affero General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Affero General Public License for more details. You should have received a copy of the GNU Affero General Public License along with this program.  If not, see <https://www.gnu.org/licenses/>.
+*/
+
+import { Hap } from './hap.mjs';
+import { Pattern, fastcat, reify, silence, stack } from './pattern.mjs';
+import Fraction from './fraction.mjs';
+import { id } from './util.mjs';
+
+export function steady(value) {
+  // A continuous value
+  return new Pattern((state) => [new Hap(undefined, state.span, value)]);
+}
+
+export const signal = (func) => {
+  const query = (state) => [new Hap(undefined, state.span, func(state.span.midpoint()))];
+  return new Pattern(query);
+};
+
+export const isaw = signal((t) => 1 - (t % 1));
+export const isaw2 = isaw._toBipolar();
+
+export const saw = signal((t) => t % 1);
+export const saw2 = saw._toBipolar();
+
+export const sine2 = signal((t) => Math.sin(Math.PI * 2 * t));
+export const sine = sine2._fromBipolar();
+export const cosine = sine._early(Fraction(1).div(4));
+export const cosine2 = sine2._early(Fraction(1).div(4));
+
+export const square = signal((t) => Math.floor((t * 2) % 2));
+export const square2 = square._toBipolar();
+
+export const tri = fastcat(isaw, saw);
+export const tri2 = fastcat(isaw2, saw2);
+
+export const time = signal(id);
+
+// random signals
+
+const xorwise = (x) => {
+  const a = (x << 13) ^ x;
+  const b = (a >> 17) ^ a;
+  return (b << 5) ^ b;
+};
+
+// stretch 300 cycles over the range of [0,2**29 == 536870912) then apply the xorshift algorithm
+const _frac = (x) => x - Math.trunc(x);
+
+const timeToIntSeed = (x) => xorwise(Math.trunc(_frac(x / 300) * 536870912));
+
+const intSeedToRand = (x) => (x % 536870912) / 536870912;
+
+const timeToRand = (x) => Math.abs(intSeedToRand(timeToIntSeed(x)));
+
+const timeToRandsPrime = (seed, n) => {
+  const result = [];
+  for (let i = 0; i < n; ++n) {
+    result.push(intSeedToRand(seed));
+    seed = xorwise(seed);
+  }
+  return result;
+};
+
+const timeToRands = (t, n) => timeToRandsPrime(timeToIntSeed(t), n);
+
+export const rand = signal(timeToRand);
+
+export const _brandBy = (p) => rand.fmap((x) => x < p);
+export const brandBy = (pPat) => reify(pPat).fmap(_brandBy).innerJoin();
+export const brand = _brandBy(0.5);
+
+export const _irand = (i) => rand.fmap((x) => Math.trunc(x * i));
+export const irand = (ipat) => reify(ipat).fmap(_irand).innerJoin();
+
+export const chooseWith = (pat, xs) => {
+  xs = xs.map(reify);
+  if (xs.length == 0) {
+    return silence;
+  }
+  return pat
+    .range(0, xs.length)
+    .fmap((i) => xs[Math.floor(i)])
+    .outerJoin();
+};
+
+export const choose = (...xs) => chooseWith(rand, xs);
+
+const _wchooseWith = function (pat, ...pairs) {
+  const values = pairs.map((pair) => reify(pair[0]));
+  const weights = [];
+  let accum = 0;
+  for (const pair of pairs) {
+    accum += pair[1];
+    weights.push(accum);
+  }
+  const total = accum;
+  const match = function (r) {
+    const find = r * total;
+    return values[weights.findIndex((x) => x > find, weights)];
+  };
+  return pat.fmap(match);
+};
+
+const wchooseWith = (...args) => _wchooseWith(...args).outerJoin();
+
+export const wchoose = (...pairs) => wchooseWith(rand, ...pairs);
+
+export const wchooseCycles = (...pairs) => _wchooseWith(rand, ...pairs).innerJoin();
+
+export const perlinWith = (pat) => {
+  const pata = pat.fmap(Math.floor);
+  const patb = pat.fmap((t) => Math.floor(t) + 1);
+  const smootherStep = (x) => 6.0 * x ** 5 - 15.0 * x ** 4 + 10.0 * x ** 3;
+  const interp = (x) => (a) => (b) => a + smootherStep(x) * (b - a);
+  return pat.sub(pata).fmap(interp).appBoth(pata.fmap(timeToRand)).appBoth(patb.fmap(timeToRand));
+};
+
+export const perlin = perlinWith(time);
+
+Pattern.prototype._degradeByWith = function (withPat, x) {
+  return this.fmap((a) => (_) => a).appLeft(withPat._filterValues((v) => v > x));
+};
+
+Pattern.prototype._degradeBy = function (x) {
+  return this._degradeByWith(rand, x);
+};
+
+Pattern.prototype.degrade = function () {
+  return this._degradeBy(0.5);
+};
+
+Pattern.prototype._undegradeBy = function (x) {
+  return this._degradeByWith(
+    rand.fmap((r) => 1 - r),
+    x,
+  );
+};
+
+Pattern.prototype.undegrade = function () {
+  return this._undegradeBy(0.5);
+};
+
+Pattern.prototype._sometimesBy = function (x, func) {
+  return stack(this._degradeBy(x), func(this._undegradeBy(1 - x)));
+};
+
+Pattern.prototype.sometimesBy = function (patx, func) {
+  const pat = this;
+  return reify(patx)
+    .fmap((x) => pat._sometimesBy(x, func))
+    .innerJoin();
+};
+
+Pattern.prototype._sometimesByPre = function (x, func) {
+  return stack(this._degradeBy(x), func(this).undegradeBy(1 - x));
+};
+
+Pattern.prototype.sometimesByPre = function (patx, func) {
+  const pat = this;
+  return reify(patx)
+    .fmap((x) => pat._sometimesByPre(x, func))
+    .innerJoin();
+};
+
+Pattern.prototype.sometimes = function (func) {
+  return this._sometimesBy(0.5, func);
+};
+
+Pattern.prototype.sometimesPre = function (func) {
+  return this._sometimesByPre(0.5, func);
+};
+
+Pattern.prototype._someCyclesBy = function (x, func) {
+  return stack(
+    this._degradeByWith(rand._segment(1), x),
+    func(this._degradeByWith(rand.fmap((r) => 1 - r)._segment(1), 1 - x)),
+  );
+};
+
+Pattern.prototype.someCyclesBy = function (patx, func) {
+  const pat = this;
+  return reify(patx)
+    .fmap((x) => pat._someCyclesBy(x, func))
+    .innerJoin();
+};
+
+Pattern.prototype.someCycles = function (func) {
+  return this._someCyclesBy(0.5, func);
+};
+
+Pattern.prototype.often = function (func) {
+  return this.sometimesBy(0.75, func);
+};
+
+Pattern.prototype.rarely = function (func) {
+  return this.sometimesBy(0.25, func);
+};
+
+Pattern.prototype.almostNever = function (func) {
+  return this.sometimesBy(0.1, func);
+};
+
+Pattern.prototype.almostAlways = function (func) {
+  return this.sometimesBy(0.9, func);
+};
+
+Pattern.prototype.never = function (func) {
+  return this;
+};
+
+Pattern.prototype.always = function (func) {
+  return func(this);
+};
+
+Pattern.prototype.patternified.push('degradeBy', 'undegradeBy');

packages/core/speak.mjs

@@ -0,0 +1,45 @@
+/*
+speak.mjs - <short description TODO>
+Copyright (C) 2022 Strudel contributors - see <https://github.com/tidalcycles/strudel/blob/main/packages/core/speak.mjs>
+This program is free software: you can redistribute it and/or modify it under the terms of the GNU Affero General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Affero General Public License for more details. You should have received a copy of the GNU Affero General Public License along with this program.  If not, see <https://www.gnu.org/licenses/>.
+*/
+
+import { Pattern, patternify2 } from './index.mjs';
+
+let synth;
+try {
+  synth = window?.speechSynthesis;
+} catch (err) {
+  console.warn('cannot use window: not in browser?');
+}
+
+let allVoices = synth?.getVoices();
+// console.log('voices', allVoices);
+
+function speak(words, lang, voice) {
+  synth.cancel();
+  const utterance = new SpeechSynthesisUtterance(words);
+  utterance.lang = lang;
+  allVoices = synth.getVoices();
+  const voices = allVoices.filter((v) => v.lang.includes(lang));
+  if (typeof voice === 'number') {
+    utterance.voice = voices[voice % voices.length];
+  } else if (typeof voice === 'string') {
+    utterance.voice = voices.find((voice) => voice.name === voice);
+  }
+  // console.log(utterance.voice?.name, utterance.voice?.lang);
+  speechSynthesis.speak(utterance);
+}
+
+Pattern.prototype._speak = function (lang, voice) {
+  return this._withHap((hap) => {
+    const onTrigger = (time, hap) => {
+      speak(hap.value, lang, voice);
+    };
+    return hap.setContext({ ...hap.context, onTrigger });
+  });
+};
+
+Pattern.prototype.speak = function (lang, voice) {
+  return patternify2(Pattern.prototype._speak)(reify(lang), reify(voice), this);
+};

packages/core/state.mjs

@@ -0,0 +1,28 @@
+/*
+state.mjs - <short description TODO>
+Copyright (C) 2022 Strudel contributors - see <https://github.com/tidalcycles/strudel/blob/main/packages/core/state.mjs>
+This program is free software: you can redistribute it and/or modify it under the terms of the GNU Affero General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Affero General Public License for more details. You should have received a copy of the GNU Affero General Public License along with this program.  If not, see <https://www.gnu.org/licenses/>.
+*/
+
+export class State {
+  constructor(span, controls = {}) {
+    this.span = span;
+    this.controls = controls;
+  }
+
+  // Returns new State with different span
+  setSpan(span) {
+    return new State(span, this.controls);
+  }
+
+  withSpan(func) {
+    return this.setSpan(func(this.span));
+  }
+
+  // Returns new State with different controls
+  setControls(controls) {
+    return new State(this.span, controls);
+  }
+}
+
+export default State;

packages/core/test/drawLine.test.mjs

@@ -0,0 +1,56 @@
+/*
+drawLine.test.mjs - <short description TODO>
+Copyright (C) 2022 Strudel contributors - see <https://github.com/tidalcycles/strudel/blob/main/packages/core/test/drawLine.test.mjs>
+This program is free software: you can redistribute it and/or modify it under the terms of the GNU Affero General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Affero General Public License for more details. You should have received a copy of the GNU Affero General Public License along with this program.  If not, see <https://www.gnu.org/licenses/>.
+*/
+
+import { fastcat, stack, slowcat, silence, pure } from '../pattern.mjs';
+import { strict as assert } from 'assert';
+import drawLine from '../drawLine.mjs';
+
+describe('drawLine', () => {
+  it('supports equal lengths', () => {
+    assert.equal(drawLine(fastcat(0), 4), '|0|0');
+    assert.equal(drawLine(fastcat(0, 1), 4), '|01|01');
+    assert.equal(drawLine(fastcat(0, 1, 2), 6), '|012|012');
+  });
+  it('supports unequal lengths', () => {
+    assert.equal(drawLine(fastcat(0, [1, 2]), 10), '|0-12|0-12');
+    assert.equal(drawLine(fastcat(0, [1, 2, 3]), 10), '|0--123|0--123');
+    assert.equal(drawLine(fastcat(0, 1, [2, 3]), 10), '|0-1-23|0-1-23');
+  });
+  it('supports unequal silence', () => {
+    assert.equal(drawLine(fastcat(0, silence, [1, 2]), 10), '|0-..12|0-..12');
+  });
+  it('supports polyrhythms', () => {
+    '0*2 1*3';
+    assert.equal(drawLine(fastcat(pure(0).fast(2), pure(1).fast(3)), 10), '|0--0--1-1-1-');
+  });
+  it('supports multiple lines', () => {
+    assert.equal(
+      drawLine(fastcat(0, stack(1, 2)), 10),
+      `|01|01|01|01
+|.2|.2|.2|.2`,
+    );
+    assert.equal(
+      drawLine(fastcat(0, 1, stack(2, 3)), 10),
+      `|012|012|012
+|..3|..3|..3`,
+    );
+    assert.equal(
+      drawLine(fastcat(0, stack(1, 2, 3)), 10),
+      `|01|01|01|01
+|.2|.2|.2|.2
+|.3|.3|.3|.3`,
+    );
+    assert.equal(
+      drawLine(fastcat(0, 1, stack(2, 3, 4)), 10),
+      `|012|012|012
+|..3|..3|..3
+|..4|..4|..4`,
+    );
+  });
+  it('supports unequal cycle lengths', () => {
+    assert.equal(drawLine(slowcat(0, [1, 2]), 10), `|0|12|0|12`);
+  });
+});

packages/core/test/fraction.test.mjs

@@ -0,0 +1,15 @@
+/*
+fraction.test.mjs - <short description TODO>
+Copyright (C) 2022 Strudel contributors - see <https://github.com/tidalcycles/strudel/blob/main/packages/core/test/fraction.test.mjs>
+This program is free software: you can redistribute it and/or modify it under the terms of the GNU Affero General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Affero General Public License for more details. You should have received a copy of the GNU Affero General Public License along with this program.  If not, see <https://www.gnu.org/licenses/>.
+*/
+
+import Fraction, { gcd } from '../fraction.mjs';
+import { strict as assert } from 'assert';
+
+describe('gcd', () => {
+  it('should work', () => {
+    const F = Fraction._original;
+    assert.equal(gcd(F(1 / 6), F(1 / 4)).toFraction(), '1/12');
+  });
+});

packages/core/test/util.test.mjs

@@ -1,5 +1,12 @@
+/*
+util.test.mjs - <short description TODO>
+Copyright (C) 2022 Strudel contributors - see <https://github.com/tidalcycles/strudel/blob/main/packages/core/test/util.test.mjs>
+This program is free software: you can redistribute it and/or modify it under the terms of the GNU Affero General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Affero General Public License for more details. You should have received a copy of the GNU Affero General Public License along with this program.  If not, see <https://www.gnu.org/licenses/>.
+*/
+
 import { strict as assert } from 'assert';
-import { isNote, tokenizeNote, toMidi, mod } from '../util.mjs';
+import { pure } from '../pattern.mjs';
+import { isNote, tokenizeNote, toMidi, fromMidi, mod, compose, getFrequency } from '../util.mjs';
 
 describe('isNote', () => {
   it('should recognize notes without accidentals', () => {
@@ -64,6 +71,21 @@ describe('toMidi', () => {
     assert.equal(toMidi('C##3'), 50);
   });
 });
+describe('fromMidi', () => {
+  it('should turn midi into frequency', () => {
+    assert.equal(fromMidi(69), 440);
+    assert.equal(fromMidi(57), 220);
+  });
+});
+describe('getFrequency', () => {
+  it('should turn midi into frequency', () => {
+    const happify = (val, context = {}) => pure(val).firstCycle()[0].setContext(context);
+    assert.equal(getFrequency(happify('a4')), 440);
+    assert.equal(getFrequency(happify('a3')), 220);
+    assert.equal(getFrequency(happify(440, { type: 'frequency' })), 440); // TODO: migrate when values are objects..
+    assert.equal(getFrequency(happify(432, { type: 'frequency' })), 432);
+  });
+});
 
 describe('mod', () => {
   it('should work like regular modulo with positive numbers', () => {
@@ -83,3 +105,16 @@ describe('mod', () => {
     assert.equal(mod(-3, 2), 1);
   });
 });
+
+describe('compose', () => {
+  const add1 = (a) => a + 1;
+  it('should compose', () => {
+    assert.equal(compose(add1, add1)(0), 2);
+    assert.equal(compose(add1)(0), 1);
+  });
+  const addS = (s) => (a) => a + s;
+  it('should compose left to right', () => {
+    assert.equal(compose(addS('a'), addS('b'))(''), 'ab');
+    assert.equal(compose(addS('a'), addS('b'))('x'), 'xab');
+  });
+});

packages/core/test/value.test.mjs

@@ -1,3 +1,9 @@
+/*
+value.test.mjs - <short description TODO>
+Copyright (C) 2022 Strudel contributors - see <https://github.com/tidalcycles/strudel/blob/main/packages/core/test/value.test.mjs>
+This program is free software: you can redistribute it and/or modify it under the terms of the GNU Affero General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Affero General Public License for more details. You should have received a copy of the GNU Affero General Public License along with this program.  If not, see <https://www.gnu.org/licenses/>.
+*/
+
 import { strict as assert } from 'assert';
 import { map, valued, mul } from '../value.mjs';
 

packages/core/timespan.mjs

@@ -0,0 +1,112 @@
+/*
+timespan.mjs - <short description TODO>
+Copyright (C) 2022 Strudel contributors - see <https://github.com/tidalcycles/strudel/blob/main/packages/core/timespan.mjs>
+This program is free software: you can redistribute it and/or modify it under the terms of the GNU Affero General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Affero General Public License for more details. You should have received a copy of the GNU Affero General Public License along with this program.  If not, see <https://www.gnu.org/licenses/>.
+*/
+
+import Fraction from './fraction.mjs';
+
+export class TimeSpan {
+  constructor(begin, end) {
+    this.begin = Fraction(begin);
+    this.end = Fraction(end);
+  }
+
+  get spanCycles() {
+    const spans = [];
+    var begin = this.begin;
+    const end = this.end;
+    const end_sam = end.sam();
+
+    while (end.gt(begin)) {
+      // If begin and end are in the same cycle, we're done.
+      if (begin.sam().equals(end_sam)) {
+        spans.push(new TimeSpan(begin, this.end));
+        break;
+      }
+      // add a timespan up to the next sam
+      const next_begin = begin.nextSam();
+      spans.push(new TimeSpan(begin, next_begin));
+
+      // continue with the next cycle
+      begin = next_begin;
+    }
+    return spans;
+  }
+
+  get duration() {
+    return this.end.sub(this.begin);
+  }
+
+  cycleArc() {
+    // Shifts a timespan to one of equal duration that starts within cycle zero.
+    // (Note that the output timespan probably does not start *at* Time 0 --
+    // that only happens when the input Arc starts at an integral Time.)
+    const b = this.begin.cyclePos();
+    const e = b.add(this.duration);
+    return new TimeSpan(b, e);
+  }
+
+  withTime(func_time) {
+    // Applies given function to both the begin and end time of the timespan"""
+    return new TimeSpan(func_time(this.begin), func_time(this.end));
+  }
+
+  withEnd(func_time) {
+    // Applies given function to the end time of the timespan"""
+    return new TimeSpan(this.begin, func_time(this.end));
+  }
+
+  withCycle(func_time) {
+    // Like withTime, but time is relative to relative to the cycle (i.e. the
+    // sam of the start of the timespan)
+    const sam = this.begin.sam();
+    const b = sam.add(func_time(this.begin.sub(sam)));
+    const e = sam.add(func_time(this.end.sub(sam)));
+    return new TimeSpan(b, e);
+  }
+
+  intersection(other) {
+    // Intersection of two timespans, returns None if they don't intersect.
+    const intersect_begin = this.begin.max(other.begin);
+    const intersect_end = this.end.min(other.end);
+
+    if (intersect_begin.gt(intersect_end)) {
+      return undefined;
+    }
+    if (intersect_begin.equals(intersect_end)) {
+      // Zero-width (point) intersection - doesn't intersect if it's at the end of a
+      // non-zero-width timespan.
+      if (intersect_begin.equals(this.end) && this.begin.lt(this.end)) {
+        return undefined;
+      }
+      if (intersect_begin.equals(other.end) && other.begin.lt(other.end)) {
+        return undefined;
+      }
+    }
+    return new TimeSpan(intersect_begin, intersect_end);
+  }
+
+  intersection_e(other) {
+    // Like 'sect', but raises an exception if the timespans don't intersect.
+    const result = this.intersection(other);
+    if (result == undefined) {
+      throw 'TimeSpans do not intersect';
+    }
+    return result;
+  }
+
+  midpoint() {
+    return this.begin.add(this.duration.div(Fraction(2)));
+  }
+
+  equals(other) {
+    return this.begin.equals(other.begin) && this.end.equals(other.end);
+  }
+
+  show() {
+    return this.begin.show() + ' -> ' + this.end.show();
+  }
+}
+
+export default TimeSpan;

packages/core/util.mjs

@@ -1,3 +1,9 @@
+/*
+util.mjs - <short description TODO>
+Copyright (C) 2022 Strudel contributors - see <https://github.com/tidalcycles/strudel/blob/main/packages/core/util.mjs>
+This program is free software: you can redistribute it and/or modify it under the terms of the GNU Affero General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Affero General Public License for more details. You should have received a copy of the GNU Affero General Public License along with this program.  If not, see <https://www.gnu.org/licenses/>.
+*/
+
 // returns true if the given string is a note
 export const isNote = (name) => /^[a-gA-G][#b]*[0-9]$/.test(name);
 export const tokenizeNote = (note) => {
@@ -27,18 +33,76 @@ export const fromMidi = (n) => {
 
 // modulo that works with negative numbers e.g. mod(-1, 3) = 2
 // const mod = (n: number, m: number): number => (n < 0 ? mod(n + m, m) : n % m);
-export const mod = (n, m) => (n < 0 ? mod(n + m, m) : n % m);
+export const mod = (n, m) => ((n % m) + m) % m;
 
-export const getPlayableNoteValue = (event) => {
-  let { value: note, context } = event;
+export const getPlayableNoteValue = (hap) => {
+  let { value: note, context } = hap;
   // if value is number => interpret as midi number as long as its not marked as frequency
   if (typeof note === 'number' && context.type !== 'frequency') {
-    note = fromMidi(event.value);
+    note = fromMidi(hap.value);
   } else if (typeof note === 'string' && !isNote(note)) {
     throw new Error('not a note: ' + note);
   }
   return note;
 };
 
+export const getFrequency = (hap) => {
+  let { value, context } = hap;
+  // if value is number => interpret as midi number as long as its not marked as frequency
+  if (typeof value === 'object' && value.freq) {
+    return value.freq;
+  }
+  if (typeof value === 'number' && context.type !== 'frequency') {
+    value = fromMidi(hap.value);
+  } else if (typeof value === 'string' && isNote(value)) {
+    value = fromMidi(toMidi(hap.value));
+  } else if (typeof value !== 'number') {
+    throw new Error('not a note or frequency:' + value);
+  }
+  return value;
+};
+
 // rotate array by n steps (to the left)
 export const rotate = (arr, n) => arr.slice(n).concat(arr.slice(0, n));
+
+export const pipe = (...funcs) => {
+  return funcs.reduce(
+    (f, g) =>
+      (...args) =>
+        f(g(...args)),
+    (x) => x,
+  );
+};
+
+export const compose = (...funcs) => pipe(...funcs.reverse());
+
+// Removes 'None' values from given list
+export const removeUndefineds = (xs) => xs.filter((x) => x != undefined);
+
+export const flatten = (arr) => [].concat(...arr);
+
+export const id = (a) => a;
+export const constant = (a, b) => a;
+
+export const listRange = (min, max) => Array.from({ length: max - min + 1 }, (_, i) => i + min);
+
+export function curry(func, overload) {
+  const fn = function curried(...args) {
+    if (args.length >= func.length) {
+      return func.apply(this, args);
+    } else {
+      const partial = function (...args2) {
+        return curried.apply(this, args.concat(args2));
+      };
+      if (overload) {
+        overload(partial, args);
+      }
+      return partial;
+    }
+  };
+  if (overload) {
+    // overload function without args... needed for chordBass.transpose(2)
+    overload(fn, []);
+  }
+  return fn;
+}

packages/core/value.mjs

@@ -1,6 +1,12 @@
-import { curry } from 'ramda';
+/*
+value.mjs - <short description TODO>
+Copyright (C) 2022 Strudel contributors - see <https://github.com/tidalcycles/strudel/blob/main/packages/core/value.mjs>
+This program is free software: you can redistribute it and/or modify it under the terms of the GNU Affero General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Affero General Public License for more details. You should have received a copy of the GNU Affero General Public License along with this program.  If not, see <https://www.gnu.org/licenses/>.
+*/
 
-function unionWithObj(a, b, func) {
+import { curry } from './util.mjs';
+
+export function unionWithObj(a, b, func) {
   const common = Object.keys(a).filter((k) => Object.keys(b).includes(k));
   return Object.assign({}, a, b, Object.fromEntries(common.map((k) => [k, func(a[k], b[k])])));
 }

packages/embed/README.md

@@ -0,0 +1,27 @@
+# @strudel.cycles/embed
+
+This package contains a embeddable web component for the Strudel REPL.
+
+## Usage
+
+Either install with `npm i @strudel.cycles/embed` or just use a cdn to import the script:
+
+```html
+<script src="https://unpkg.com/@strudel.cycles/embed@latest"></script>
+<strudel-repl>
+  <!--
+      "a4 [a3 c3] a3 c3".color('#F9D649')
+    .sub("<7 12 5 12>".slow(2))
+    .off(1/4,x=>x.add(7).color("#FFFFFF #0C3AA1 #C63928"))
+    .off(1/8,x=>x.add(12).color('#215CB6'))
+    .slow(2)
+    .legato(sine.range(0.3, 2).slow(28))
+    .wave("sawtooth square".fast(2))
+    .filter('lowpass', cosine.range(500,4000).slow(16))
+    .out()
+    .pianoroll({minMidi:20,maxMidi:120,background:'#202124'})
+      -->
+</strudel-repl>
+```
+
+Note that the Code is placed inside HTML comments to prevent the browser from treating it as HTML.

packages/embed/embed.js

@@ -0,0 +1,18 @@
+class Strudel extends HTMLElement {
+  constructor() {
+    super();
+  }
+  connectedCallback() {
+    setTimeout(() => {
+      const code = (this.innerHTML + '').replace('<!--', '').replace('-->', '').trim();
+      const iframe = document.createElement('iframe');
+      const src = `https://strudel.tidalcycles.org/#${encodeURIComponent(btoa(code))}`;
+      // const src = `http://localhost:3000/#${encodeURIComponent(btoa(code))}`;
+      iframe.setAttribute('src', src);
+      iframe.setAttribute('width', '600');
+      iframe.setAttribute('height', '400');
+      this.appendChild(iframe);
+    });
+  }
+}
+customElements.define('strudel-repl', Strudel);

packages/embed/example.html

@@ -0,0 +1,16 @@
+<script src="https://unpkg.com/@strudel.cycles/embed@latest"></script>
+<!-- <script src="./embed.js"></script> -->
+<strudel-repl>
+  <!--
+      "a4 [a3 c3] a3 c3".color('#F9D649')
+    .sub("<7 12 5 12>".slow(2))
+    .off(1/4,x=>x.add(7).color("#FFFFFF #0C3AA1 #C63928"))
+    .off(1/8,x=>x.add(12).color('#215CB6'))
+    .slow(2)
+    .legato(sine.range(0.3, 2).slow(28))
+    .wave("sawtooth square".fast(2))
+    .filter('lowpass', cosine.range(500,4000).slow(16))
+    .out()
+    .pianoroll({minMidi:20,maxMidi:120,background:'#202124'})
+      -->
+</strudel-repl>

packages/embed/package.json

@@ -0,0 +1,24 @@
+{
+  "name": "@strudel.cycles/embed",
+  "version": "0.1.0",
+  "description": "Embeddable Web Component to load a Strudel REPL into an iframe",
+  "main": "embed.js",
+  "type": "module",
+  "repository": {
+    "type": "git",
+    "url": "git+https://github.com/tidalcycles/strudel.git"
+  },
+  "keywords": [
+    "tidalcycles",
+    "strudel",
+    "pattern",
+    "livecoding",
+    "algorave"
+  ],
+  "author": "Felix Roos <flix91@gmail.com>",
+  "license": "AGPL-3.0-or-later",
+  "bugs": {
+    "url": "https://github.com/tidalcycles/strudel/issues"
+  },
+  "homepage": "https://github.com/tidalcycles/strudel#readme"
+}

packages/eval/README.md

@@ -11,6 +11,8 @@ npm i @strudel.cycles/eval --save
 
 ## Example
 
+<!-- TODO: -extend +evalScope -->
+
 ```js
 import { evaluate, extend } from '@strudel.cycles/eval';
 import * as strudel from '@strudel.cycles/core';

packages/eval/evaluate.mjs

@@ -1,17 +1,45 @@
+/*
+evaluate.mjs - <short description TODO>
+Copyright (C) 2022 Strudel contributors - see <https://github.com/tidalcycles/strudel/blob/main/packages/eval/evaluate.mjs>
+This program is free software: you can redistribute it and/or modify it under the terms of the GNU Affero General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Affero General Public License for more details. You should have received a copy of the GNU Affero General Public License along with this program.  If not, see <https://www.gnu.org/licenses/>.
+*/
+
 import shapeshifter from './shapeshifter.mjs';
 import * as strudel from '@strudel.cycles/core';
 
-const { isPattern } = strudel;
+const { isPattern, Pattern } = strudel;
 
 export const extend = (...args) => {
-  // TODO: find a way to make args available to eval without adding it to global scope...
-  // sadly, "with" does not work in strict mode
+  console.warn('@strudel.cycles/eval extend is deprecated, please use evalScope instead');
   Object.assign(globalThis, ...args);
 };
 
+let scoped = false;
+export const evalScope = async (...args) => {
+  if (scoped) {
+    console.warn('@strudel.cycles/eval evalScope was called more than once.');
+  }
+  scoped = true;
+  const results = await Promise.allSettled(args);
+  const modules = results.filter((result) => result.status === 'fulfilled').map((r) => r.value);
+  results.forEach((result, i) => {
+    if (result.status === 'rejected') {
+      console.warn(`evalScope: module with index ${i} could not be loaded:`, result.reason);
+    }
+  });
+  Object.assign(globalThis, ...modules, Pattern.prototype.bootstrap());
+};
+
+function safeEval(str) {
+  return Function('"use strict";return (' + str + ')')();
+}
+
 export const evaluate = async (code) => {
+  if (!scoped) {
+    await evalScope(); // at least scope Pattern.prototype.boostrap
+  }
   const shapeshifted = shapeshifter(code); // transform syntactically correct js code to semantically usable code
-  let evaluated = await eval(shapeshifted);
+  let evaluated = await safeEval(shapeshifted);
   if (!isPattern(evaluated)) {
     console.log('evaluated', evaluated);
     const message = `got "${typeof evaluated}" instead of pattern`;

packages/eval/index.mjs

@@ -0,0 +1 @@
+export * from './evaluate.mjs';

packages/eval/package-lock.json

@@ -1,12 +1,12 @@
 {
 	"name": "@strudel.cycles/eval",
-	"version": "0.0.2",
+	"version": "0.1.1",
 	"lockfileVersion": 2,
 	"requires": true,
 	"packages": {
 		"": {
 			"name": "@strudel.cycles/eval",
-			"version": "0.0.1",
+			"version": "0.0.3",
 			"license": "GPL-3.0-or-later",
 			"dependencies": {
 				"estraverse": "^5.3.0",

packages/eval/package.json

@@ -1,8 +1,9 @@
 {
   "name": "@strudel.cycles/eval",
-  "version": "0.0.2",
+  "version": "0.1.1",
   "description": "Code evaluator for strudel",
-  "main": "evaluate.mjs",
+  "main": "index.mjs",
+  "type": "module",
   "directories": {
     "test": "test"
   },
@@ -13,7 +14,6 @@
     "type": "git",
     "url": "git+https://github.com/tidalcycles/strudel.git"
   },
-  "type": "module",
   "keywords": [
     "tidalcycles",
     "strudel",
@@ -22,13 +22,13 @@
     "algorave"
   ],
   "author": "Felix Roos <flix91@gmail.com>",
-  "license": "GPL-3.0-or-later",
+  "license": "AGPL-3.0-or-later",
   "bugs": {
     "url": "https://github.com/tidalcycles/strudel/issues"
   },
   "homepage": "https://github.com/tidalcycles/strudel#readme",
   "dependencies": {
-    "@strudel.cycles/core": "^0.0.2",
+    "@strudel.cycles/core": "^0.1.0",
     "estraverse": "^5.3.0",
     "shift-ast": "^6.1.0",
     "shift-codegen": "^7.0.3",

packages/eval/shapeshifter.mjs

@@ -1,3 +1,9 @@
+/*
+shapeshifter.mjs - <short description TODO>
+Copyright (C) 2022 Strudel contributors - see <https://github.com/tidalcycles/strudel/blob/main/packages/eval/shapeshifter.mjs>
+This program is free software: you can redistribute it and/or modify it under the terms of the GNU Affero General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Affero General Public License for more details. You should have received a copy of the GNU Affero General Public License along with this program.  If not, see <https://www.gnu.org/licenses/>.
+*/
+
 /* import { parseScriptWithLocation } from './shift-parser/index.js'; // npm module does not work in the browser
 import traverser from './shift-traverser/index.js'; // npm module does not work in the browser */
 import { parseScriptWithLocation } from 'shift-parser';
@@ -15,7 +21,7 @@ import {
 import shiftCodegen from 'shift-codegen';
 const codegen = shiftCodegen.default || shiftCodegen; // parcel module resolution fuckup
 
-import * as strudel from '@strudel.cycles/core/strudel.mjs';
+import * as strudel from '@strudel.cycles/core';
 
 const { Pattern } = strudel;
 
@@ -23,6 +29,8 @@ const isNote = (name) => /^[a-gC-G][bs]?[0-9]$/.test(name);
 
 const addLocations = true;
 export const addMiniLocations = true;
+export const minifyStrings = true;
+export const wrappedAsync = true;
 
 export default (_code) => {
   const { code, addReturn } = wrapAsync(_code);
@@ -38,18 +46,18 @@ export default (_code) => {
       }
 
       // replace template string `xxx` with mini(`xxx`)
-      if (isBackTickString(node)) {
+      if (minifyStrings && isBackTickString(node)) {
         return minifyWithLocation(node, node, ast.locations, artificialNodes);
       }
       // allows to use top level strings, which are normally directives... but we don't need directives
-      if (node.directives?.length === 1 && !node.statements?.length) {
+      if (minifyStrings && node.directives?.length === 1 && !node.statements?.length) {
         const str = new LiteralStringExpression({ value: node.directives[0].rawValue });
         const wrapped = minifyWithLocation(str, node.directives[0], ast.locations, artificialNodes);
         return { ...node, directives: [], statements: [wrapped] };
       }
 
       // replace double quote string "xxx" with mini('xxx')
-      if (isStringWithDoubleQuotes(node, ast.locations, code)) {
+      if (minifyStrings && isStringWithDoubleQuotes(node, ast.locations, code)) {
         return minifyWithLocation(node, node, ast.locations, artificialNodes);
       }
 
@@ -117,7 +125,9 @@ export default (_code) => {
     },
   });
   // add return to last statement (because it's wrapped in an async function artificially)
-  addReturn(shifted);
+  if (wrappedAsync) {
+    addReturn(shifted);
+  }
   const generated = codegen(shifted);
   return generated;
 };
@@ -125,9 +135,11 @@ export default (_code) => {
 function wrapAsync(code) {
   // wrap code in async to make await work on top level => this will create 1 line offset to locations
   // this is why line offset is -1 in getLocationObject calls below
-  code = `(async () => {
+  if (wrappedAsync) {
+    code = `(async () => {
 ${code}
 })()`;
+  }
   const addReturn = (ast) => {
     const body = ast.statements[0].expression.callee.body; // actual code ast inside async function body
     body.statements = body.statements
@@ -204,9 +216,10 @@ function hasModifierCall(parent) {
     parent?.type === 'StaticMemberExpression' && Object.keys(Pattern.prototype.composable).includes(parent.property)
   );
 }
+const factories = Object.keys(Pattern.prototype.factories).concat(['mini']);
 
 function isPatternFactory(node) {
-  return node?.type === 'CallExpression' && Object.keys(Pattern.prototype.factories).includes(node.callee.name);
+  return node?.type === 'CallExpression' && factories.includes(node.callee.name);
 }
 
 function canBeOverloaded(node) {
@@ -233,9 +246,14 @@ function reifyWithLocation(literalNode, node, locations, artificialNodes) {
 // with this, the reified pattern can pass its location to the event, to know where to highlight when it's active
 function minifyWithLocation(literalNode, node, locations, artificialNodes) {
   const args = getLocationArguments(node, locations);
+  const wrapped = wrapFunction('mini', literalNode);
+  if (!addMiniLocations) {
+    artificialNodes.push(wrapped);
+    return wrapped;
+  }
   const withLocation = new CallExpression({
     callee: new StaticMemberExpression({
-      object: wrapFunction('mini', literalNode),
+      object: wrapped,
       property: 'withMiniLocation',
     }),
     arguments: args,
@@ -246,17 +264,18 @@ function minifyWithLocation(literalNode, node, locations, artificialNodes) {
 
 function getLocationArguments(node, locations) {
   const loc = locations.get(node);
+  const lineOffset = wrappedAsync ? -1 : 0;
   return [
     new ArrayExpression({
       elements: [
-        new LiteralNumericExpression({ value: loc.start.line - 1 }), // the minus 1 assumes the code has been wrapped in async iife
+        new LiteralNumericExpression({ value: loc.start.line + lineOffset }), // the minus 1 assumes the code has been wrapped in async iife
         new LiteralNumericExpression({ value: loc.start.column }),
         new LiteralNumericExpression({ value: loc.start.offset }),
       ],
     }),
     new ArrayExpression({
       elements: [
-        new LiteralNumericExpression({ value: loc.end.line - 1 }), // the minus 1 assumes the code has been wrapped in async iife
+        new LiteralNumericExpression({ value: loc.end.line + lineOffset }), // the minus 1 assumes the code has been wrapped in async iife
         new LiteralNumericExpression({ value: loc.end.column }),
         new LiteralNumericExpression({ value: loc.end.offset }),
       ],

packages/eval/shift-traverser/index.js

@@ -1,3 +1,9 @@
+/*
+index.js - <short description TODO>
+Copyright (C) 2022 Strudel contributors - see <https://github.com/tidalcycles/strudel/blob/main/packages/eval/shift-traverser/index.js>
+This program is free software: you can redistribute it and/or modify it under the terms of the GNU Affero General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Affero General Public License for more details. You should have received a copy of the GNU Affero General Public License along with this program.  If not, see <https://www.gnu.org/licenses/>.
+*/
+
 /*
   Copyright (C) 2014 Yusuke Suzuki <utatane.tea@gmail.com>
 

packages/eval/test/evaluate.test.mjs

@@ -1,22 +1,29 @@
+/*
+evaluate.test.mjs - <short description TODO>
+Copyright (C) 2022 Strudel contributors - see <https://github.com/tidalcycles/strudel/blob/main/packages/eval/test/evaluate.test.mjs>
+This program is free software: you can redistribute it and/or modify it under the terms of the GNU Affero General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Affero General Public License for more details. You should have received a copy of the GNU Affero General Public License along with this program.  If not, see <https://www.gnu.org/licenses/>.
+*/
+
 import { strict as assert } from 'assert';
 import { evaluate, extend } from '../evaluate.mjs';
 import { mini } from '@strudel.cycles/mini';
 import * as strudel from '@strudel.cycles/core';
 
-const { cat } = strudel;
+const { fastcat } = strudel;
 
 extend({ mini }, strudel);
+// TODO: test evalScope
 
 describe('evaluate', () => {
   const ev = async (code) => (await evaluate(code)).pattern._firstCycleValues;
   it('Should evaluate strudel functions', async () => {
     assert.deepStrictEqual(await ev("pure('c3')"), ['c3']);
     assert.deepStrictEqual(await ev('cat(c3)'), ['c3']);
-    assert.deepStrictEqual(await ev('cat(c3, d3)'), ['c3', 'd3']);
+    assert.deepStrictEqual(await ev('fastcat(c3, d3)'), ['c3', 'd3']);
     assert.deepStrictEqual(await ev('slowcat(c3, d3)'), ['c3']);
   });
   it('Should be extendable', async () => {
-    extend({ myFunction: (...x) => cat(...x) });
+    extend({ myFunction: (...x) => fastcat(...x) });
     assert.deepStrictEqual(await ev('myFunction(c3, d3)'), ['c3', 'd3']);
   });
   it('Should evaluate simple double quoted mini notation', async () => {

packages/eval/test/shapeshifter.test.mjs

@@ -1,3 +1,9 @@
+/*
+shapeshifter.test.mjs - <short description TODO>
+Copyright (C) 2022 Strudel contributors - see <https://github.com/tidalcycles/strudel/blob/main/packages/eval/test/shapeshifter.test.mjs>
+This program is free software: you can redistribute it and/or modify it under the terms of the GNU Affero General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Affero General Public License for more details. You should have received a copy of the GNU Affero General Public License along with this program.  If not, see <https://www.gnu.org/licenses/>.
+*/
+
 import { strict as assert } from 'assert';
 import shapeshifter from '../shapeshifter.mjs';
 

packages/midi/README.md

@@ -7,3 +7,7 @@ This package adds midi functionality to strudel Patterns.
 ```sh
 npm i @strudel.cycles/midi --save
 ```
+
+## Dev Notes
+
+- is this package really necessary? currently, /tone also depends on webmidi through @tonejs/piano. Either move piano out of /tone or merge /midi into /tone...

packages/midi/index.mjs

@@ -0,0 +1,3 @@
+import './midi.mjs';
+
+export * from './midi.mjs';

packages/midi/midi.mjs

@@ -1,6 +1,12 @@
+/*
+midi.mjs - <short description TODO>
+Copyright (C) 2022 Strudel contributors - see <https://github.com/tidalcycles/strudel/blob/main/packages/midi/midi.mjs>
+This program is free software: you can redistribute it and/or modify it under the terms of the GNU Affero General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Affero General Public License for more details. You should have received a copy of the GNU Affero General Public License along with this program.  If not, see <https://www.gnu.org/licenses/>.
+*/
+
 import { isNote } from 'tone';
 import _WebMidi from 'webmidi';
-import { Pattern, isPattern } from '@strudel.cycles/core/strudel.mjs';
+import { Pattern, isPattern } from '@strudel.cycles/core';
 import { Tone } from '@strudel.cycles/tone';
 
 // if you use WebMidi from outside of this package, make sure to import that instance:
@@ -33,11 +39,11 @@ Pattern.prototype.midi = function (output, channel = 1) {
       }')`,
     );
   }
-  return this._withEvent((event) => {
-    // const onTrigger = (time: number, event: any) => {
-    const onTrigger = (time, event) => {
-      let note = event.value;
-      const velocity = event.context?.velocity ?? 0.9;
+  return this._withHap((hap) => {
+    // const onTrigger = (time: number, hap: any) => {
+    const onTrigger = (time, hap) => {
+      let note = hap.value;
+      const velocity = hap.context?.velocity ?? 0.9;
       if (!isNote(note)) {
         throw new Error('not a note: ' + note);
       }
@@ -69,10 +75,10 @@ Pattern.prototype.midi = function (output, channel = 1) {
       // await enableWebMidi()
       device.playNote(note, channel, {
         time,
-        duration: event.duration * 1000 - 5,
+        duration: hap.duration.valueOf() * 1000 - 5,
         velocity,
       });
     };
-    return event.setContext({ ...event.context, onTrigger });
+    return hap.setContext({ ...hap.context, onTrigger });
   });
 };

packages/midi/package-lock.json

@@ -1,12 +1,12 @@
 {
 	"name": "@strudel.cycles/midi",
-	"version": "0.0.2",
+	"version": "0.1.1",
 	"lockfileVersion": 2,
 	"requires": true,
 	"packages": {
 		"": {
 			"name": "@strudel.cycles/midi",
-			"version": "0.0.1",
+			"version": "0.0.4",
 			"license": "GPL-3.0-or-later",
 			"dependencies": {
 				"tone": "^14.7.77",

packages/midi/package.json

@@ -1,8 +1,8 @@
 {
   "name": "@strudel.cycles/midi",
-  "version": "0.0.2",
+  "version": "0.1.1",
   "description": "Midi API for strudel",
-  "main": "midi.mjs",
+  "main": "index.mjs",
   "repository": {
     "type": "git",
     "url": "git+https://github.com/tidalcycles/strudel.git"
@@ -15,13 +15,13 @@
     "algorave"
   ],
   "author": "Felix Roos <flix91@gmail.com>",
-  "license": "GPL-3.0-or-later",
+  "license": "AGPL-3.0-or-later",
   "bugs": {
     "url": "https://github.com/tidalcycles/strudel/issues"
   },
   "homepage": "https://github.com/tidalcycles/strudel#readme",
   "dependencies": {
-    "@strudel.cycles/tone": "^0.0.2",
+    "@strudel.cycles/tone": "^0.1.1",
     "tone": "^14.7.77",
     "webmidi": "^2.5.2"
   }

packages/mini/README.md

@@ -17,8 +17,6 @@ const pattern = mini('a [b c*2]');
 
 const events = pattern.firstCycle().map((e) => e.show());
 console.log(events);
-
-document.getElementById('app').innerHTML = events.join('<br/>');
 ```
 
 yields:

packages/mini/index.mjs

@@ -0,0 +1,2 @@
+export * from './mini.mjs';
+export * from './krill-parser.js';

packages/mini/krill-parser.js

@@ -1,3 +1,9 @@
+/*
+krill-parser.js - <short description TODO>
+Copyright (C) 2022 Strudel contributors - see <https://github.com/tidalcycles/strudel/blob/main/packages/mini/krill-parser.js>
+This program is free software: you can redistribute it and/or modify it under the terms of the GNU Affero General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Affero General Public License for more details. You should have received a copy of the GNU Affero General Public License along with this program.  If not, see <https://www.gnu.org/licenses/>.
+*/
+
 // Generated by Peggy 1.2.0.
 //
 // https://peggyjs.org/

packages/mini/krill.pegjs

@@ -1,3 +1,9 @@
+/*
+krill.pegjs - <short description TODO>
+Copyright (C) 2022 Strudel contributors - see <https://github.com/tidalcycles/strudel/blob/main/packages/mini/krill.pegjs>
+This program is free software: you can redistribute it and/or modify it under the terms of the GNU Affero General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Affero General Public License for more details. You should have received a copy of the GNU Affero General Public License along with this program.  If not, see <https://www.gnu.org/licenses/>.
+*/
+
 // Some terminology:
 // a sequence = a serie of elements placed between quotes
 // a stack = a serie of vertically aligned slices sharing the same overall length

packages/mini/mini.mjs

@@ -1,5 +1,11 @@
+/*
+mini.mjs - <short description TODO>
+Copyright (C) 2022 Strudel contributors - see <https://github.com/tidalcycles/strudel/blob/main/packages/mini/mini.mjs>
+This program is free software: you can redistribute it and/or modify it under the terms of the GNU Affero General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Affero General Public License for more details. You should have received a copy of the GNU Affero General Public License along with this program.  If not, see <https://www.gnu.org/licenses/>.
+*/
+
 import * as krill from './krill-parser.js';
-import * as strudel from '@strudel.cycles/core/strudel.mjs';
+import * as strudel from '@strudel.cycles/core';
 import { addMiniLocations } from '@strudel.cycles/eval/shapeshifter.mjs';
 
 const { pure, Pattern, Fraction, stack, slowcat, sequence, timeCat, silence, reify } = strudel;

packages/mini/package.json

@@ -1,8 +1,8 @@
 {
   "name": "@strudel.cycles/mini",
-  "version": "0.0.2",
+  "version": "0.1.1",
   "description": "Mini notation for strudel",
-  "main": "mini.mjs",
+  "main": "index.mjs",
   "type": "module",
   "scripts": {
     "test": "mocha --colors"
@@ -19,13 +19,14 @@
     "algorave"
   ],
   "author": "Felix Roos <flix91@gmail.com>",
-  "license": "GPL-3.0-or-later",
+  "license": "AGPL-3.0-or-later",
   "bugs": {
     "url": "https://github.com/tidalcycles/strudel/issues"
   },
   "homepage": "https://github.com/tidalcycles/strudel#readme",
   "dependencies": {
-    "@strudel.cycles/eval": "^0.0.2",
-    "@strudel.cycles/tone": "^0.0.2"
+    "@strudel.cycles/core": "^0.1.0",
+    "@strudel.cycles/eval": "^0.1.1",
+    "@strudel.cycles/tone": "^0.1.1"
   }
 }

packages/mini/test/mini.test.mjs

@@ -1,3 +1,9 @@
+/*
+mini.test.mjs - <short description TODO>
+Copyright (C) 2022 Strudel contributors - see <https://github.com/tidalcycles/strudel/blob/main/packages/mini/test/mini.test.mjs>
+This program is free software: you can redistribute it and/or modify it under the terms of the GNU Affero General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Affero General Public License for more details. You should have received a copy of the GNU Affero General Public License along with this program.  If not, see <https://www.gnu.org/licenses/>.
+*/
+
 import { strict as assert } from 'assert';
 import { mini } from '../mini.mjs';
 import '@strudel.cycles/core/euclid.mjs';

packages/osc/README.md

@@ -0,0 +1,37 @@
+# @strudel.cycles/osc
+
+OSC output for strudel patterns! Currently only tested with super collider / super dirt.
+
+## Usage
+
+OSC will only work if you run the REPL locally + the OSC server besides it:
+
+From the project root:
+
+```js
+npm run repl
+```
+
+and in a seperate shell:
+
+```js
+npm run osc
+```
+
+This should give you
+
+```log
+osc client running on port 57120
+osc server running on port 57121
+websocket server running on port 8080
+```
+
+Now open Supercollider (with the super dirt startup file)
+
+Now open the REPL and type:
+
+```js
+s("<bd sd> hh").osc()
+```
+
+or just [click here](http://localhost:3000/#cygiPGJkIHNkPiBoaCIpLm9zYygp)...

packages/osc/index.html

@@ -0,0 +1,22 @@
+<button id="send" style="font-size: 2em">Thank you @ojack</button>
+<script type="text/javascript" src="./node_modules/osc-js/lib/osc.min.js"></script>
+<script type="text/javascript">
+  const comm = new OSC();
+  comm.open(); // connect by default to ws://localhost:8080
+  document.getElementById('send').addEventListener('click', function () {
+    // this will send a message via websocket to the node server
+
+    // the great question: how do i know which time super collider is at????????
+    const message = new OSC.Message(
+      '/dirt/play',
+      ...['_id_', '1', 'cps', 0.5625, 'cycle', 412.3333435058594, 'delta', 0.592592716217041, 'orbit', 0, 's', 'hh'],
+    );
+
+    comm.send(message);
+    console.log('sent:', message.address, message.args);
+  });
+  /* 
+  comm.on('*', (m) => {
+    console.log('received:', m.address, m.args);
+  }); */
+</script>

packages/osc/osc.mjs

@@ -0,0 +1,33 @@
+/*
+osc.mjs - <short description TODO>
+Copyright (C) 2022 Strudel contributors - see <https://github.com/tidalcycles/strudel/blob/main/packages/osc/osc.mjs>
+This program is free software: you can redistribute it and/or modify it under the terms of the GNU Affero General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Affero General Public License for more details. You should have received a copy of the GNU Affero General Public License along with this program.  If not, see <https://www.gnu.org/licenses/>.
+*/
+
+import OSC from 'osc-js';
+import { Pattern } from '@strudel.cycles/core';
+
+const comm = new OSC();
+comm.open();
+const latency = 0.1;
+let startedAt = -1;
+
+Pattern.prototype.osc = function () {
+  return this._withHap((hap) => {
+    const onTrigger = (time, hap, currentTime, cps, cycle, delta) => {
+      // time should be audio time of onset
+      // currentTime should be current time of audio context (slightly before time)
+      if (startedAt < 0) {
+        startedAt = Date.now() - (currentTime * 1000);
+      }
+      const controls = Object.assign({}, { cps: cps, cycle: cycle, delta: delta }, hap.value);
+      const keyvals = Object.entries(controls).flat();
+      const ts = Math.floor(startedAt + ((time + latency) * 1000));
+      const message = new OSC.Message('/dirt/play', ...keyvals);
+      const bundle = new OSC.Bundle([message], ts);
+      bundle.timestamp(ts); // workaround for https://github.com/adzialocha/osc-js/issues/60
+      comm.send(bundle);
+    };
+    return hap.setContext({ ...hap.context, onTrigger });
+  });
+};

packages/osc/package-lock.json

@@ -0,0 +1,60 @@
+{
+	"name": "@strudel.cycles/osc",
+	"version": "0.1.0",
+	"lockfileVersion": 2,
+	"requires": true,
+	"packages": {
+		"": {
+			"name": "@strudel.cycles/osc",
+			"version": "0.0.1",
+			"license": "GPL-3.0-or-later",
+			"dependencies": {
+				"osc-js": "^2.3.2"
+			}
+		},
+		"node_modules/osc-js": {
+			"version": "2.3.2",
+			"resolved": "https://registry.npmjs.org/osc-js/-/osc-js-2.3.2.tgz",
+			"integrity": "sha512-9i7J4u1hH+glooGMh+ki1ni0JGqKmylT8r0nXKugHbRK63rR+kl4O+5tGW6+/EszjbCju3KV+eXQQzFDdGrmhg==",
+			"dependencies": {
+				"ws": "^8.5.0"
+			}
+		},
+		"node_modules/ws": {
+			"version": "8.5.0",
+			"resolved": "https://registry.npmjs.org/ws/-/ws-8.5.0.tgz",
+			"integrity": "sha512-BWX0SWVgLPzYwF8lTzEy1egjhS4S4OEAHfsO8o65WOVsrnSRGaSiUaa9e0ggGlkMTtBlmOpEXiie9RUcBO86qg==",
+			"engines": {
+				"node": ">=10.0.0"
+			},
+			"peerDependencies": {
+				"bufferutil": "^4.0.1",
+				"utf-8-validate": "^5.0.2"
+			},
+			"peerDependenciesMeta": {
+				"bufferutil": {
+					"optional": true
+				},
+				"utf-8-validate": {
+					"optional": true
+				}
+			}
+		}
+	},
+	"dependencies": {
+		"osc-js": {
+			"version": "2.3.2",
+			"resolved": "https://registry.npmjs.org/osc-js/-/osc-js-2.3.2.tgz",
+			"integrity": "sha512-9i7J4u1hH+glooGMh+ki1ni0JGqKmylT8r0nXKugHbRK63rR+kl4O+5tGW6+/EszjbCju3KV+eXQQzFDdGrmhg==",
+			"requires": {
+				"ws": "^8.5.0"
+			}
+		},
+		"ws": {
+			"version": "8.5.0",
+			"resolved": "https://registry.npmjs.org/ws/-/ws-8.5.0.tgz",
+			"integrity": "sha512-BWX0SWVgLPzYwF8lTzEy1egjhS4S4OEAHfsO8o65WOVsrnSRGaSiUaa9e0ggGlkMTtBlmOpEXiie9RUcBO86qg==",
+			"requires": {}
+		}
+	}
+}

packages/osc/package.json

@@ -0,0 +1,35 @@
+{
+  "name": "@strudel.cycles/osc",
+  "version": "0.1.0",
+  "description": "OSC messaging for strudel",
+  "main": "osc.mjs",
+  "scripts": {
+    "test": "echo \"No tests present.\" && exit 0",
+    "server": "node server.js",
+    "tidal-sniffer": "node tidal-sniffer.js",
+    "client": "npx serve -p 4321"
+  },
+  "repository": {
+    "type": "git",
+    "url": "git+https://github.com/tidalcycles/strudel.git"
+  },
+  "keywords": [
+    "tidalcycles",
+    "strudel",
+    "pattern",
+    "livecoding",
+    "algorave"
+  ],
+  "author": "Felix Roos <flix91@gmail.com>",
+  "contributors": [
+    "Alex McLean <alex@slab.org>"
+  ],
+  "license": "AGPL-3.0-or-later",
+  "bugs": {
+    "url": "https://github.com/tidalcycles/strudel/issues"
+  },
+  "homepage": "https://github.com/tidalcycles/strudel#readme",
+  "dependencies": {
+    "osc-js": "^2.3.2"
+  }
+}

packages/osc/server.js

@@ -0,0 +1,36 @@
+/*
+server.js - <short description TODO>
+Copyright (C) 2022 Strudel contributors - see <https://github.com/tidalcycles/strudel/blob/main/packages/osc/server.js>
+This program is free software: you can redistribute it and/or modify it under the terms of the GNU Affero General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Affero General Public License for more details. You should have received a copy of the GNU Affero General Public License along with this program.  If not, see <https://www.gnu.org/licenses/>.
+*/
+
+const OSC = require('osc-js');
+
+const config = {
+  receiver: 'ws', // @param {string} Where messages sent via 'send' method will be delivered to, 'ws' for Websocket clients, 'udp' for udp client
+  udpServer: {
+    host: 'localhost', // @param {string} Hostname of udp server to bind to
+    port: 57121, // @param {number} Port of udp client for messaging
+    // enabling the following line will receive tidal messages:
+    // port: 57120, // @param {number} Port of udp client for messaging
+    exclusive: false, // @param {boolean} Exclusive flag
+  },
+  udpClient: {
+    host: 'localhost', // @param {string} Hostname of udp client for messaging
+    port: 57120, // @param {number} Port of udp client for messaging
+  },
+  wsServer: {
+    host: 'localhost', // @param {string} Hostname of WebSocket server
+    port: 8080, // @param {number} Port of WebSocket server
+  },
+};
+
+
+
+const osc = new OSC({ plugin: new OSC.BridgePlugin(config) });
+
+osc.open(); // start a WebSocket server on port 8080
+
+console.log('osc client running on port', config.udpClient.port);
+console.log('osc server running on port', config.udpServer.port);
+console.log('websocket server running on port', config.wsServer.port);

packages/osc/tidal-sniffer.js

@@ -0,0 +1,131 @@
+/*
+tidal-sniffer.js - <short description TODO>
+Copyright (C) 2022 Strudel contributors - see <https://github.com/tidalcycles/strudel/blob/main/packages/osc/tidal-sniffer.js>
+This program is free software: you can redistribute it and/or modify it under the terms of the GNU Affero General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Affero General Public License for more details. You should have received a copy of the GNU Affero General Public License along with this program.  If not, see <https://www.gnu.org/licenses/>.
+*/
+
+const OSC = require('osc-js');
+
+const config = {
+  receiver: 'ws', // @param {string} Where messages sent via 'send' method will be delivered to, 'ws' for Websocket clients, 'udp' for udp client
+  udpServer: {
+    host: 'localhost', // @param {string} Hostname of udp server to bind to
+    port: 57120, // @param {number} Port of udp client for messaging
+    exclusive: false, // @param {boolean} Exclusive flag
+  },
+  udpClient: {
+    host: 'localhost', // @param {string} Hostname of udp client for messaging
+    // port: 57120, // @param {number} Port of udp client for messaging
+    port: 41235, // @param {number} Port of udp client for messaging
+  },
+  wsServer: {
+    host: 'localhost', // @param {string} Hostname of WebSocket server
+    port: 8080, // @param {number} Port of WebSocket server
+  },
+};
+const osc = new OSC({ plugin: new OSC.BridgePlugin(config) });
+
+osc.open(); // start a WebSocket server on port 8080
+
+console.log('osc client running on port', config.udpClient.port);
+console.log('osc server running on port', config.udpServer.port);
+console.log('websocket server running on port', config.wsServer.port);
+
+// listen for messages from the client
+osc.on('*', (m) => {
+  console.log('received:', m.address, m.args);
+});
+
+/*
+example tidal messages:
+
+/*
+
+received: /dirt/play [
+  '_id_',
+  '1',
+  'cps',
+  0.5625,
+  'cycle',
+  503.5,
+  'delta',
+  0.8888888359069824,
+  'orbit',
+  0,
+  's',
+  'bd'
+]
+received: /dirt/play [
+  '_id_',  '1',
+  'cps',   0.5625,
+  'cycle', 503.6666564941406,
+  'delta', 0.592592716217041,
+  'orbit', 0,
+  's',     'hh'
+]
+received: /dirt/play [
+  '_id_',
+  '1',
+  'cps',
+  0.5625,
+  'cycle',
+  504,
+  'delta',
+  0.8888888359069824,
+  'orbit',
+  0,
+  's',
+  'bd'
+]
+received: /dirt/play [
+  '_id_',
+  '1',
+  'cps',
+  0.5625,
+  'cycle',
+  504,
+  'delta',
+  0.592592716217041,
+  'orbit',
+  0,
+  's',
+  'hh'
+]
+received: /dirt/play [
+  '_id_',
+  '1',
+  'cps',
+  0.5625,
+  'cycle',
+  504.3333435058594,
+  'delta',
+  0.5925922393798828,
+  'orbit',
+  0,
+  's',
+  'hh'
+]
+received: /dirt/play [
+  '_id_',
+  '1',
+  'cps',
+  0.5625,
+  'cycle',
+  504.5,
+  'delta',
+  0.8888888359069824,
+  'orbit',
+  0,
+  's',
+  'bd'
+]
+received: /dirt/play [
+  '_id_',  '1',
+  'cps',   0.5625,
+  'cycle', 504.6666564941406,
+  'delta', 0.592592716217041,
+  'orbit', 0,
+  's',     'hh'
+]
+
+*/

packages/react/.gitignore

@@ -0,0 +1,25 @@
+# Logs
+logs
+*.log
+npm-debug.log*
+yarn-debug.log*
+yarn-error.log*
+pnpm-debug.log*
+lerna-debug.log*
+
+node_modules
+dist-ssr
+*.local
+
+!dist
+
+# Editor directories and files
+.vscode/*
+!.vscode/extensions.json
+.idea
+.DS_Store
+*.suo
+*.ntvs*
+*.njsproj
+*.sln
+*.sw?

packages/react/README.md

@@ -0,0 +1,4 @@
+# @strudel.cycles/react
+
+This package contains react hooks and components for strudel.
+Example coming soon

packages/react/dist/index.es.js

@@ -0,0 +1,620 @@
+import React, { useState, useEffect, useCallback, useMemo, useRef } from 'react';
+import { CodeMirror as CodeMirror$1 } from 'react-codemirror6';
+import { EditorView, Decoration } from '@codemirror/view';
+import { StateEffect, StateField } from '@codemirror/state';
+import { javascript } from '@codemirror/lang-javascript';
+import { HighlightStyle, tags } from '@codemirror/highlight';
+import { useInView } from 'react-hook-inview';
+import { evaluate } from '@strudel.cycles/eval';
+import { getPlayableNoteValue } from '@strudel.cycles/core/util.mjs';
+import { Tone } from '@strudel.cycles/tone';
+import { TimeSpan, State } from '@strudel.cycles/core';
+import { WebMidi, enableWebMidi } from '@strudel.cycles/midi';
+
+/*
+  Credits for color palette:
+
+  Author:     Mattia Astorino (http://github.com/equinusocio)
+  Website:    https://material-theme.site/
+*/
+
+const ivory = '#abb2bf',
+  stone = '#7d8799', // Brightened compared to original to increase contrast
+  invalid = '#ffffff',
+  darkBackground = '#21252b',
+  highlightBackground = 'rgba(0, 0, 0, 0.5)',
+  // background = '#292d3e',
+  background = 'transparent',
+  tooltipBackground = '#353a42',
+  selection = 'rgba(128, 203, 196, 0.2)',
+  cursor = '#ffcc00';
+
+/// The editor theme styles for Material Palenight.
+const materialPalenightTheme = EditorView.theme(
+  {
+    // done
+    '&': {
+      color: '#ffffff',
+      backgroundColor: background,
+      fontSize: '15px',
+      'z-index': 11,
+    },
+
+    // done
+    '.cm-content': {
+      caretColor: cursor,
+      lineHeight: '22px',
+    },
+    '.cm-line': {
+      background: '#2C323699',
+    },
+    // done
+    '&.cm-focused .cm-cursor': {
+      borderLeftColor: cursor,
+    },
+
+    '&.cm-focused .cm-selectionBackground, .cm-selectionBackground, .cm-content ::selection': {
+      backgroundColor: selection,
+    },
+
+    '.cm-panels': { backgroundColor: darkBackground, color: '#ffffff' },
+    '.cm-panels.cm-panels-top': { borderBottom: '2px solid black' },
+    '.cm-panels.cm-panels-bottom': { borderTop: '2px solid black' },
+
+    // done, use onedarktheme
+    '.cm-searchMatch': {
+      backgroundColor: '#72a1ff59',
+      outline: '1px solid #457dff',
+    },
+    '.cm-searchMatch.cm-searchMatch-selected': {
+      backgroundColor: '#6199ff2f',
+    },
+
+    '.cm-activeLine': { backgroundColor: highlightBackground },
+    '.cm-selectionMatch': { backgroundColor: '#aafe661a' },
+
+    '&.cm-focused .cm-matchingBracket, &.cm-focused .cm-nonmatchingBracket': {
+      backgroundColor: '#bad0f847',
+      outline: '1px solid #515a6b',
+    },
+
+    // done
+    '.cm-gutters': {
+      background: '#2C323699',
+      color: '#676e95',
+      border: 'none',
+    },
+
+    '.cm-activeLineGutter': {
+      backgroundColor: highlightBackground,
+    },
+
+    '.cm-foldPlaceholder': {
+      backgroundColor: 'transparent',
+      border: 'none',
+      color: '#ddd',
+    },
+
+    '.cm-tooltip': {
+      border: 'none',
+      backgroundColor: tooltipBackground,
+    },
+    '.cm-tooltip .cm-tooltip-arrow:before': {
+      borderTopColor: 'transparent',
+      borderBottomColor: 'transparent',
+    },
+    '.cm-tooltip .cm-tooltip-arrow:after': {
+      borderTopColor: tooltipBackground,
+      borderBottomColor: tooltipBackground,
+    },
+    '.cm-tooltip-autocomplete': {
+      '& > ul > li[aria-selected]': {
+        backgroundColor: highlightBackground,
+        color: ivory,
+      },
+    },
+  },
+  { dark: true },
+);
+
+/// The highlighting style for code in the Material Palenight theme.
+const materialPalenightHighlightStyle = HighlightStyle.define([
+  { tag: tags.keyword, color: '#c792ea' },
+  { tag: tags.operator, color: '#89ddff' },
+  { tag: tags.special(tags.variableName), color: '#eeffff' },
+  { tag: tags.typeName, color: '#f07178' },
+  { tag: tags.atom, color: '#f78c6c' },
+  { tag: tags.number, color: '#ff5370' },
+  { tag: tags.definition(tags.variableName), color: '#82aaff' },
+  { tag: tags.string, color: '#c3e88d' },
+  { tag: tags.special(tags.string), color: '#f07178' },
+  { tag: tags.comment, color: stone },
+  { tag: tags.variableName, color: '#f07178' },
+  { tag: tags.tagName, color: '#ff5370' },
+  { tag: tags.bracket, color: '#a2a1a4' },
+  { tag: tags.meta, color: '#ffcb6b' },
+  { tag: tags.attributeName, color: '#c792ea' },
+  { tag: tags.propertyName, color: '#c792ea' },
+  { tag: tags.className, color: '#decb6b' },
+  { tag: tags.invalid, color: invalid },
+]);
+
+/// Extension to enable the Material Palenight theme (both the editor theme and
+/// the highlight style).
+// : Extension
+const materialPalenight = [materialPalenightTheme, materialPalenightHighlightStyle];
+
+const setHighlights = StateEffect.define();
+const highlightField = StateField.define({
+  create() {
+    return Decoration.none;
+  },
+  update(highlights, tr) {
+    try {
+      for (let e of tr.effects) {
+        if (e.is(setHighlights)) {
+          highlights = Decoration.set(e.value.flatMap((hap) => (hap.context.locations || []).map(({ start, end }) => {
+            const color = hap.context.color || "#FFCA28";
+            let from = tr.newDoc.line(start.line).from + start.column;
+            let to = tr.newDoc.line(end.line).from + end.column;
+            const l = tr.newDoc.length;
+            if (from > l || to > l) {
+              return;
+            }
+            const mark = Decoration.mark({ attributes: { style: `outline: 1px solid ${color}` } });
+            return mark.range(from, to);
+          })).filter(Boolean), true);
+        }
+      }
+      return highlights;
+    } catch (err) {
+      return highlights;
+    }
+  },
+  provide: (f) => EditorView.decorations.from(f)
+});
+function CodeMirror({ value, onChange, onViewChanged, onCursor, options, editorDidMount }) {
+  return /* @__PURE__ */ React.createElement(React.Fragment, null, /* @__PURE__ */ React.createElement(CodeMirror$1, {
+    onViewChange: onViewChanged,
+    style: {
+      display: "flex",
+      flexDirection: "column",
+      flex: "1 0 auto"
+    },
+    value,
+    onChange,
+    extensions: [
+      javascript(),
+      materialPalenight,
+      highlightField
+    ]
+  }));
+}
+
+/*
+useCycle.mjs - <short description TODO>
+Copyright (C) 2022 Strudel contributors - see <https://github.com/tidalcycles/strudel/blob/main/repl/src/useCycle.mjs>
+This program is free software: you can redistribute it and/or modify it under the terms of the GNU Affero General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Affero General Public License for more details. You should have received a copy of the GNU Affero General Public License along with this program.  If not, see <https://www.gnu.org/licenses/>.
+*/
+
+/* export declare interface UseCycleProps {
+  onEvent: ToneEventCallback<any>;
+  onQuery?: (state: State) => Hap[];
+  onSchedule?: (events: Hap[], cycle: number) => void;
+  onDraw?: ToneEventCallback<any>;
+  ready?: boolean; // if false, query will not be called on change props
+} */
+
+// function useCycle(props: UseCycleProps) {
+function useCycle(props) {
+  // onX must use useCallback!
+  const { onEvent, onQuery, onSchedule, ready = true, onDraw } = props;
+  const [started, setStarted] = useState(false);
+  const cycleDuration = 1;
+  const activeCycle = () => Math.floor(Tone.getTransport().seconds / cycleDuration);
+
+  // pull events with onQuery + count up to next cycle
+  const query = (cycle = activeCycle()) => {
+    const timespan = new TimeSpan(cycle, cycle + 1);
+    const events = onQuery?.(new State(timespan)) || [];
+    onSchedule?.(events, cycle);
+    // cancel events after current query. makes sure no old events are player for rescheduled cycles
+    // console.log('schedule', cycle);
+    // query next cycle in the middle of the current
+    const cancelFrom = timespan.begin.valueOf();
+    Tone.getTransport().cancel(cancelFrom);
+    // const queryNextTime = (cycle + 1) * cycleDuration - 0.1;
+    const queryNextTime = (cycle + 1) * cycleDuration - 0.5;
+
+    // if queryNextTime would be before current time, execute directly (+0.1 for safety that it won't miss)
+    const t = Math.max(Tone.getTransport().seconds, queryNextTime) + 0.1;
+    Tone.getTransport().schedule(() => {
+      query(cycle + 1);
+    }, t);
+
+    // schedule events for next cycle
+    events
+      ?.filter((event) => event.part.begin.equals(event.whole?.begin))
+      .forEach((event) => {
+        Tone.getTransport().schedule((time) => {
+          onEvent(time, event, Tone.getContext().currentTime);
+          Tone.Draw.schedule(() => {
+            // do drawing or DOM manipulation here
+            onDraw?.(time, event);
+          }, time);
+        }, event.part.begin.valueOf());
+      });
+  };
+
+  useEffect(() => {
+    ready && query();
+  }, [onEvent, onSchedule, onQuery, onDraw, ready]);
+
+  const start = async () => {
+    setStarted(true);
+    await Tone.start();
+    Tone.getTransport().start('+0.1');
+  };
+  const stop = () => {
+    Tone.getTransport().pause();
+    setStarted(false);
+  };
+  const toggle = () => (started ? stop() : start());
+  return {
+    start,
+    stop,
+    onEvent,
+    started,
+    setStarted,
+    toggle,
+    query,
+    activeCycle,
+  };
+}
+
+/*
+usePostMessage.mjs - <short description TODO>
+Copyright (C) 2022 Strudel contributors - see <https://github.com/tidalcycles/strudel/blob/main/repl/src/usePostMessage.mjs>
+This program is free software: you can redistribute it and/or modify it under the terms of the GNU Affero General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Affero General Public License for more details. You should have received a copy of the GNU Affero General Public License along with this program.  If not, see <https://www.gnu.org/licenses/>.
+*/
+
+function usePostMessage(listener) {
+  useEffect(() => {
+    window.addEventListener('message', listener);
+    return () => window.removeEventListener('message', listener);
+  }, [listener]);
+  return useCallback((data) => window.postMessage(data, '*'), []);
+}
+
+/*
+useRepl.mjs - <short description TODO>
+Copyright (C) 2022 Strudel contributors - see <https://github.com/tidalcycles/strudel/blob/main/repl/src/useRepl.mjs>
+This program is free software: you can redistribute it and/or modify it under the terms of the GNU Affero General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Affero General Public License for more details. You should have received a copy of the GNU Affero General Public License along with this program.  If not, see <https://www.gnu.org/licenses/>.
+*/
+
+let s4 = () => {
+  return Math.floor((1 + Math.random()) * 0x10000)
+    .toString(16)
+    .substring(1);
+};
+const generateHash = (code) => encodeURIComponent(btoa(code));
+
+function useRepl({ tune, defaultSynth, autolink = true, onEvent, onDraw: onDrawProp }) {
+  const id = useMemo(() => s4(), []);
+  const [code, setCode] = useState(tune);
+  const [activeCode, setActiveCode] = useState();
+  const [log, setLog] = useState('');
+  const [error, setError] = useState();
+  const [pending, setPending] = useState(false);
+  const [hash, setHash] = useState('');
+  const [pattern, setPattern] = useState();
+  const dirty = useMemo(() => code !== activeCode || error, [code, activeCode, error]);
+  const pushLog = useCallback((message) => setLog((log) => log + `${log ? '\n\n' : ''}${message}`), []);
+
+  // below block allows disabling the highlighting by including "strudel disable-highlighting" in the code (as comment)
+  const onDraw = useMemo(() => {
+    if (activeCode && !activeCode.includes('strudel disable-highlighting')) {
+      return (time, event) => onDrawProp?.(time, event, activeCode);
+    }
+  }, [activeCode, onDrawProp]);
+
+  // cycle hook to control scheduling
+  const cycle = useCycle({
+    onDraw,
+    onEvent: useCallback(
+      (time, event, currentTime) => {
+        try {
+          onEvent?.(event);
+          if (event.context.logs?.length) {
+            event.context.logs.forEach(pushLog);
+          }
+          const { onTrigger, velocity } = event.context;
+          if (!onTrigger) {
+            if (defaultSynth) {
+              const note = getPlayableNoteValue(event);
+              defaultSynth.triggerAttackRelease(note, event.duration.valueOf(), time, velocity);
+            } else {
+              throw new Error('no defaultSynth passed to useRepl.');
+            }
+            /* console.warn('no instrument chosen', event);
+          throw new Error(`no instrument chosen for ${JSON.stringify(event)}`); */
+          } else {
+            onTrigger(
+              time,
+              event,
+              currentTime,
+              1 /* cps */,
+              event.wholeOrPart().begin.valueOf(),
+              event.duration.valueOf(),
+            );
+          }
+        } catch (err) {
+          console.warn(err);
+          err.message = 'unplayable event: ' + err?.message;
+          pushLog(err.message); // not with setError, because then we would have to setError(undefined) on next playable event
+        }
+      },
+      [onEvent, pushLog, defaultSynth],
+    ),
+    onQuery: useCallback(
+      (state) => {
+        try {
+          return pattern?.query(state) || [];
+        } catch (err) {
+          console.warn(err);
+          err.message = 'query error: ' + err.message;
+          setError(err);
+          return [];
+        }
+      },
+      [pattern],
+    ),
+    onSchedule: useCallback((_events, cycle) => logCycle(_events, cycle), []),
+    ready: !!pattern && !!activeCode,
+  });
+
+  const broadcast = usePostMessage(({ data: { from, type } }) => {
+    if (type === 'start' && from !== id) {
+      // console.log('message', from, type);
+      cycle.setStarted(false);
+      setActiveCode(undefined);
+    }
+  });
+
+  const activateCode = useCallback(
+    async (_code = code) => {
+      if (activeCode && !dirty) {
+        setError(undefined);
+        cycle.start();
+        return;
+      }
+      try {
+        setPending(true);
+        const parsed = await evaluate(_code);
+        cycle.start();
+        broadcast({ type: 'start', from: id });
+        setPattern(() => parsed.pattern);
+        if (autolink) {
+          window.location.hash = '#' + encodeURIComponent(btoa(code));
+        }
+        setHash(generateHash(code));
+        setError(undefined);
+        setActiveCode(_code);
+        setPending(false);
+      } catch (err) {
+        err.message = 'evaluation error: ' + err.message;
+        console.warn(err);
+        setError(err);
+      }
+    },
+    [activeCode, dirty, code, cycle, autolink, id, broadcast],
+  );
+  // logs events of cycle
+  const logCycle = (_events, cycle) => {
+    if (_events.length) ;
+  };
+
+  const togglePlay = () => {
+    if (!cycle.started) {
+      activateCode();
+    } else {
+      cycle.stop();
+    }
+  };
+
+  return {
+    pending,
+    code,
+    setCode,
+    pattern,
+    error,
+    cycle,
+    setPattern,
+    dirty,
+    log,
+    togglePlay,
+    setActiveCode,
+    activateCode,
+    activeCode,
+    pushLog,
+    hash,
+  };
+}
+
+/*
+cx.js - <short description TODO>
+Copyright (C) 2022 Strudel contributors - see <https://github.com/tidalcycles/strudel/blob/main/repl/src/cx.js>
+This program is free software: you can redistribute it and/or modify it under the terms of the GNU Affero General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Affero General Public License for more details. You should have received a copy of the GNU Affero General Public License along with this program.  If not, see <https://www.gnu.org/licenses/>.
+*/
+
+function cx(...classes) {
+  // : Array<string | undefined>
+  return classes.filter(Boolean).join(' ');
+}
+
+let highlights = []; // actively highlighted events
+let lastEnd;
+
+function useHighlighting({ view, pattern, active }) {
+  useEffect(() => {
+    if (view) {
+      if (pattern && active) {
+        let frame = requestAnimationFrame(updateHighlights);
+
+        function updateHighlights() {
+          try {
+            const audioTime = Tone.getTransport().seconds;
+            const span = [lastEnd || audioTime, audioTime + 1 / 60];
+            lastEnd = audioTime + 1 / 60;
+            highlights = highlights.filter((hap) => hap.whole.end > audioTime); // keep only highlights that are still active
+            const haps = pattern.queryArc(...span).filter((hap) => hap.hasOnset());
+            highlights = highlights.concat(haps); // add potential new onsets
+            view.dispatch({ effects: setHighlights.of(highlights) }); // highlight all still active + new active haps
+          } catch (err) {
+            // console.log('error in updateHighlights', err);
+            view.dispatch({ effects: setHighlights.of([]) });
+          }
+          frame = requestAnimationFrame(updateHighlights);
+        }
+
+        return () => {
+          cancelAnimationFrame(frame);
+        };
+      } else {
+        highlights = [];
+        view.dispatch({ effects: setHighlights.of([]) });
+      }
+    }
+  }, [pattern, active, view]);
+}
+
+var tailwind = '';
+
+const container = "_container_10e1g_1";
+const header = "_header_10e1g_5";
+const buttons = "_buttons_10e1g_9";
+const button = "_button_10e1g_9";
+const buttonDisabled = "_buttonDisabled_10e1g_17";
+const error = "_error_10e1g_21";
+const body = "_body_10e1g_25";
+var styles = {
+	container: container,
+	header: header,
+	buttons: buttons,
+	button: button,
+	buttonDisabled: buttonDisabled,
+	error: error,
+	body: body
+};
+
+function Icon({ type }) {
+  return /* @__PURE__ */ React.createElement("svg", {
+    xmlns: "http://www.w3.org/2000/svg",
+    className: "sc-h-5 sc-w-5",
+    viewBox: "0 0 20 20",
+    fill: "currentColor"
+  }, {
+    refresh: /* @__PURE__ */ React.createElement("path", {
+      fillRule: "evenodd",
+      d: "M4 2a1 1 0 011 1v2.101a7.002 7.002 0 0111.601 2.566 1 1 0 11-1.885.666A5.002 5.002 0 005.999 7H9a1 1 0 010 2H4a1 1 0 01-1-1V3a1 1 0 011-1zm.008 9.057a1 1 0 011.276.61A5.002 5.002 0 0014.001 13H11a1 1 0 110-2h5a1 1 0 011 1v5a1 1 0 11-2 0v-2.101a7.002 7.002 0 01-11.601-2.566 1 1 0 01.61-1.276z",
+      clipRule: "evenodd"
+    }),
+    play: /* @__PURE__ */ React.createElement("path", {
+      fillRule: "evenodd",
+      d: "M10 18a8 8 0 100-16 8 8 0 000 16zM9.555 7.168A1 1 0 008 8v4a1 1 0 001.555.832l3-2a1 1 0 000-1.664l-3-2z",
+      clipRule: "evenodd"
+    }),
+    pause: /* @__PURE__ */ React.createElement("path", {
+      fillRule: "evenodd",
+      d: "M18 10a8 8 0 11-16 0 8 8 0 0116 0zM7 8a1 1 0 012 0v4a1 1 0 11-2 0V8zm5-1a1 1 0 00-1 1v4a1 1 0 102 0V8a1 1 0 00-1-1z",
+      clipRule: "evenodd"
+    })
+  }[type]);
+}
+
+function MiniRepl({ tune, defaultSynth, hideOutsideView = false }) {
+  const { code, setCode, pattern, activateCode, error, cycle, dirty, togglePlay } = useRepl({
+    tune,
+    defaultSynth,
+    autolink: false
+  });
+  const [view, setView] = useState();
+  const [ref, isVisible] = useInView({
+    threshold: 0.01
+  });
+  const wasVisible = useRef();
+  const show = useMemo(() => {
+    if (isVisible || !hideOutsideView) {
+      wasVisible.current = true;
+    }
+    return isVisible || wasVisible.current;
+  }, [isVisible, hideOutsideView]);
+  useHighlighting({ view, pattern, active: cycle.started });
+  return /* @__PURE__ */ React.createElement("div", {
+    className: styles.container,
+    ref
+  }, /* @__PURE__ */ React.createElement("div", {
+    className: styles.header
+  }, /* @__PURE__ */ React.createElement("div", {
+    className: styles.buttons
+  }, /* @__PURE__ */ React.createElement("button", {
+    className: cx(styles.button, cycle.started ? "sc-animate-pulse" : ""),
+    onClick: () => togglePlay()
+  }, /* @__PURE__ */ React.createElement(Icon, {
+    type: cycle.started ? "pause" : "play"
+  })), /* @__PURE__ */ React.createElement("button", {
+    className: cx(dirty ? styles.button : styles.buttonDisabled),
+    onClick: () => activateCode()
+  }, /* @__PURE__ */ React.createElement(Icon, {
+    type: "refresh"
+  }))), error && /* @__PURE__ */ React.createElement("div", {
+    className: styles.error
+  }, error.message)), /* @__PURE__ */ React.createElement("div", {
+    className: styles.body
+  }, show && /* @__PURE__ */ React.createElement(CodeMirror, {
+    value: code,
+    onChange: setCode,
+    onViewChanged: setView
+  })));
+}
+
+/*
+useWebMidi.js - <short description TODO>
+Copyright (C) 2022 Strudel contributors - see <https://github.com/tidalcycles/strudel/blob/main/repl/src/useWebMidi.js>
+This program is free software: you can redistribute it and/or modify it under the terms of the GNU Affero General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Affero General Public License for more details. You should have received a copy of the GNU Affero General Public License along with this program.  If not, see <https://www.gnu.org/licenses/>.
+*/
+
+function useWebMidi(props) {
+  const { ready, connected, disconnected } = props;
+  const [loading, setLoading] = useState(true);
+  const [outputs, setOutputs] = useState(WebMidi?.outputs || []);
+  useEffect(() => {
+    enableWebMidi()
+      .then(() => {
+        // Reacting when a new device becomes available
+        WebMidi.addListener('connected', (e) => {
+          setOutputs([...WebMidi.outputs]);
+          connected?.(WebMidi, e);
+        });
+        // Reacting when a device becomes unavailable
+        WebMidi.addListener('disconnected', (e) => {
+          setOutputs([...WebMidi.outputs]);
+          disconnected?.(WebMidi, e);
+        });
+        ready?.(WebMidi);
+        setLoading(false);
+      })
+      .catch((err) => {
+        if (err) {
+          console.error(err);
+          //throw new Error("Web Midi could not be enabled...");
+          console.warn('Web Midi could not be enabled..');
+          return;
+        }
+      });
+  }, [ready, connected, disconnected, outputs]);
+  const outputByName = (name) => WebMidi.getOutputByName(name);
+  return { loading, outputs, outputByName };
+}
+
+export { CodeMirror, MiniRepl, cx, useCycle, useHighlighting, usePostMessage, useRepl, useWebMidi };

packages/react/dist/style.css

@@ -0,0 +1 @@
+*,:before,:after{--tw-translate-x: 0;--tw-translate-y: 0;--tw-rotate: 0;--tw-skew-x: 0;--tw-skew-y: 0;--tw-scale-x: 1;--tw-scale-y: 1;--tw-pan-x: ;--tw-pan-y: ;--tw-pinch-zoom: ;--tw-scroll-snap-strictness: proximity;--tw-ordinal: ;--tw-slashed-zero: ;--tw-numeric-figure: ;--tw-numeric-spacing: ;--tw-numeric-fraction: ;--tw-ring-inset: ;--tw-ring-offset-width: 0px;--tw-ring-offset-color: #fff;--tw-ring-color: rgb(59 130 246 / .5);--tw-ring-offset-shadow: 0 0 #0000;--tw-ring-shadow: 0 0 #0000;--tw-shadow: 0 0 #0000;--tw-shadow-colored: 0 0 #0000;--tw-blur: ;--tw-brightness: ;--tw-contrast: ;--tw-grayscale: ;--tw-hue-rotate: ;--tw-invert: ;--tw-saturate: ;--tw-sepia: ;--tw-drop-shadow: ;--tw-backdrop-blur: ;--tw-backdrop-brightness: ;--tw-backdrop-contrast: ;--tw-backdrop-grayscale: ;--tw-backdrop-hue-rotate: ;--tw-backdrop-invert: ;--tw-backdrop-opacity: ;--tw-backdrop-saturate: ;--tw-backdrop-sepia: }.sc-h-5{height:1.25rem}.sc-w-5{width:1.25rem}@keyframes sc-pulse{50%{opacity:.5}}.sc-animate-pulse{animation:sc-pulse 2s cubic-bezier(.4,0,.6,1) infinite}._container_10e1g_1{overflow:hidden;border-radius:.375rem;--tw-bg-opacity: 1;background-color:rgb(68 76 87 / var(--tw-bg-opacity))}._header_10e1g_5{display:flex;justify-content:space-between;border-top-width:1px;--tw-border-opacity: 1;border-color:rgb(100 116 139 / var(--tw-border-opacity));--tw-bg-opacity: 1;background-color:rgb(51 65 85 / var(--tw-bg-opacity))}._buttons_10e1g_9{display:flex}._button_10e1g_9{display:flex;width:4rem;cursor:pointer;align-items:center;justify-content:center;border-right-width:1px;--tw-border-opacity: 1;border-color:rgb(100 116 139 / var(--tw-border-opacity));--tw-bg-opacity: 1;background-color:rgb(51 65 85 / var(--tw-bg-opacity));padding:.25rem;--tw-text-opacity: 1;color:rgb(255 255 255 / var(--tw-text-opacity))}._button_10e1g_9:hover{--tw-bg-opacity: 1;background-color:rgb(71 85 105 / var(--tw-bg-opacity))}._buttonDisabled_10e1g_17{display:flex;width:4rem;cursor:pointer;cursor:not-allowed;align-items:center;justify-content:center;--tw-bg-opacity: 1;background-color:rgb(71 85 105 / var(--tw-bg-opacity));padding:.25rem;--tw-text-opacity: 1;color:rgb(148 163 184 / var(--tw-text-opacity))}._error_10e1g_21{padding:.25rem;text-align:right;font-size:.875rem;line-height:1.25rem;--tw-text-opacity: 1;color:rgb(254 202 202 / var(--tw-text-opacity))}._body_10e1g_25{position:relative;overflow:auto}

packages/react/index.html

@@ -0,0 +1,13 @@
+<!DOCTYPE html>
+<html lang="en">
+  <head>
+    <meta charset="UTF-8" />
+<!--     <link rel="icon" type="image/svg+xml" href="/src/favicon.svg" /> -->
+    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
+    <title>Strudel React Components</title>
+  </head>
+  <body>
+    <div id="root"></div>
+    <script type="module" src="/src/main.jsx"></script>
+  </body>
+</html>

packages/react/package.json

@@ -0,0 +1,62 @@
+{
+  "name": "@strudel.cycles/react",
+  "version": "0.1.2",
+  "description": "React components for strudel",
+  "main": "dist/index.cjs.js",
+  "module": "dist/index.es.js",
+  "exports": {
+    ".": {
+      "require": "./dist/index.cjs.js",
+      "import": "./dist/index.es.js"
+    },
+    "./dist/style.css": "./dist/style.css"
+  },
+  "files": [
+    "dist"
+  ],
+  "scripts": {
+    "dev": "vite",
+    "build": "vite build",
+    "preview": "vite preview"
+  },
+  "repository": {
+    "type": "git",
+    "url": "git+https://github.com/tidalcycles/strudel.git"
+  },
+  "keywords": [
+    "tidalcycles",
+    "strudel",
+    "pattern",
+    "livecoding",
+    "algorave"
+  ],
+  "author": "Felix Roos <flix91@gmail.com>",
+  "license": "AGPL-3.0-or-later",
+  "bugs": {
+    "url": "https://github.com/tidalcycles/strudel/issues"
+  },
+  "homepage": "https://github.com/tidalcycles/strudel#readme",
+  "dependencies": {
+    "@codemirror/lang-javascript": "^0.19.0",
+    "@strudel.cycles/core": "*",
+    "@strudel.cycles/eval": "^0.1.1",
+    "@strudel.cycles/tone": "^0.1.1",
+    "react-codemirror6": "^1.1.0",
+    "react-hook-inview": "^4.5.0"
+  },
+  "peerDependencies": {
+    "react": "^17.0.2",
+    "react-dom": "^17.0.2"
+  },
+  "devDependencies": {
+    "@types/react": "^17.0.2",
+    "@types/react-dom": "^17.0.2",
+    "@vitejs/plugin-react": "^1.3.0",
+    "autoprefixer": "^10.4.7",
+    "postcss": "^8.4.13",
+    "react": "^17.0.2",
+    "react-dom": "^17.0.2",
+    "tailwindcss": "^3.0.24",
+    "vite": "^2.9.9"
+  }
+}

packages/react/postcss.config.js

@@ -0,0 +1,12 @@
+/*
+postcss.config.js - <short description TODO>
+Copyright (C) 2022 Strudel contributors - see <https://github.com/tidalcycles/strudel/blob/main/repl/postcss.config.js>
+This program is free software: you can redistribute it and/or modify it under the terms of the GNU Affero General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Affero General Public License for more details. You should have received a copy of the GNU Affero General Public License along with this program.  If not, see <https://www.gnu.org/licenses/>.
+*/
+
+module.exports = {
+  plugins: {
+    tailwindcss: {},
+    autoprefixer: {},
+  },
+}

packages/react/src/App.jsx

@@ -0,0 +1,28 @@
+import React from 'react';
+import { MiniRepl } from './components/MiniRepl';
+import 'tailwindcss/tailwind.css';
+import { Tone, getDefaultSynth } from '@strudel.cycles/tone';
+import { evalScope } from '@strudel.cycles/eval';
+
+const defaultSynth = getDefaultSynth();
+
+evalScope(
+  Tone,
+  import('@strudel.cycles/core'),
+  import('@strudel.cycles/tone'),
+  import('@strudel.cycles/tonal'),
+  import('@strudel.cycles/mini'),
+  import('@strudel.cycles/midi'),
+  import('@strudel.cycles/xen'),
+  import('@strudel.cycles/webaudio'),
+);
+
+function App() {
+  return (
+    <div>
+      <MiniRepl tune={`"c3"`} defaultSynth={defaultSynth} />
+    </div>
+  );
+}
+
+export default App;

packages/react/src/components/CodeMirror6.jsx

@@ -1,53 +1,73 @@
 import React from 'react';
-import { Controlled as CodeMirror2 } from 'react-codemirror2';
-import 'codemirror/mode/javascript/javascript';
-import 'codemirror/mode/pegjs/pegjs';
-// import 'codemirror/theme/material.css';
-import 'codemirror/lib/codemirror.css';
-import 'codemirror/theme/material.css';
+import { CodeMirror as _CodeMirror } from 'react-codemirror6';
+// import { CodeMirrorLite as _CodeMirror } from 'react-codemirror6/dist/lite';
+import { EditorView, Decoration } from '@codemirror/view';
+import { StateField, StateEffect } from '@codemirror/state';
+import { javascript } from '@codemirror/lang-javascript';
+// import { materialPalenight } from 'codemirror6-themes';
+import { materialPalenight } from '../themes/material-palenight';
 
-export default function CodeMirror({ value, onChange, onCursor, options, editorDidMount }) {
-  options = options || {
-    mode: 'javascript',
-    theme: 'material',
-    lineNumbers: true,
-    styleSelectedText: true,
-    cursorBlinkRate: 500,
-  };
+export const setHighlights = StateEffect.define();
+const highlightField = StateField.define({
+  create() {
+    return Decoration.none;
+  },
+  update(highlights, tr) {
+    try {
+      for (let e of tr.effects) {
+        if (e.is(setHighlights)) {
+          highlights = Decoration.set(
+            e.value
+              .flatMap((hap) =>
+                (hap.context.locations || []).map(({ start, end }) => {
+                  const color = hap.context.color || '#FFCA28';
+                  let from = tr.newDoc.line(start.line).from + start.column;
+                  let to = tr.newDoc.line(end.line).from + end.column;
+                  const l = tr.newDoc.length;
+                  if (from > l || to > l) {
+                    return; // dont mark outside of range, as it will throw an error
+                  }
+                  const mark = Decoration.mark({ attributes: { style: `outline: 1px solid ${color}` } });
+                  return mark.range(from, to);
+                }),
+              )
+              .filter(Boolean),
+            true,
+          );
+        }
+      }
+      return highlights;
+    } catch (err) {
+      // console.warn('highlighting error', err);
+      return highlights;
+    }
+  },
+  provide: (f) => EditorView.decorations.from(f),
+});
+
+export default function CodeMirror({ value, onChange, onViewChanged, onCursor, options, editorDidMount }) {
   return (
-    <CodeMirror2
-      value={value}
-      options={options}
-      onBeforeChange={onChange}
-      editorDidMount={editorDidMount}
-      onCursor={(editor, data) => onCursor?.(editor, data)}
-    />
+    <>
+      <_CodeMirror
+        onViewChange={onViewChanged}
+        style={{
+          display: 'flex',
+          flexDirection: 'column',
+          flex: '1 0 auto',
+        }}
+        value={value}
+        onChange={onChange}
+        extensions={[
+          javascript(),
+          materialPalenight,
+          highlightField,
+          // theme, language, ...
+        ]}
+      />
+    </>
   );
 }
 
-export const markEvent = (editor) => (time, event) => {
-  const locs = event.context.locations;
-  if (!locs || !editor) {
-    return;
-  }
-  const col = event.context?.color || '#FFCA28';
-  // mark active event
-  const marks = locs.map(({ start, end }) =>
-    editor.getDoc().markText(
-      { line: start.line - 1, ch: start.column },
-      { line: end.line - 1, ch: end.column },
-      //{ css: 'background-color: #FFCA28; color: black' } // background-color is now used by parent marking
-      { css: 'outline: 1px solid ' + col + '; box-sizing:border-box' },
-      //{ css: `background-color: ${col};border-radius:5px` },
-    ),
-  );
-  //Tone.Transport.schedule(() => { // problem: this can be cleared by scheduler...
-  setTimeout(() => {
-    marks.forEach((mark) => mark.clear());
-    // }, '+' + event.duration * 0.5);
-  }, event.duration /* * 0.9 */ * 1000);
-};
-
 let parenMark;
 export const markParens = (editor, data) => {
   const v = editor.getDoc().getValue();
@@ -75,6 +95,10 @@ export function offsetToPosition(offset, code) {
 // returns absolute character offset from { line, ch }
 export function positionToOffset(position, code) {
   const lines = code.split('\n');
+  if (position.line > lines.length) {
+    // throw new Error('positionToOffset: position.line > lines.length');
+    return 0;
+  }
   let offset = 0;
   for (let i = 0; i < position.line; i++) {
     offset += lines[i].length + 1;
@@ -119,3 +143,27 @@ export function getCurrentParenArea(code, caretPosition) {
   end = i;
   return [begin, end].map((o) => offsetToPosition(o, code));
 }
+
+/* 
+export const markEvent = (editor) => (time, event) => {
+  const locs = event.context.locations;
+  if (!locs || !editor) {
+    return;
+  }
+  const col = event.context?.color || '#FFCA28';
+  // mark active event
+  const marks = locs.map(({ start, end }) =>
+    editor.getDoc().markText(
+      { line: start.line - 1, ch: start.column },
+      { line: end.line - 1, ch: end.column },
+      //{ css: 'background-color: #FFCA28; color: black' } // background-color is now used by parent marking
+      { css: 'outline: 1px solid ' + col + '; box-sizing:border-box' },
+      //{ css: `background-color: ${col};border-radius:5px` },
+    ),
+  );
+  //Tone.Transport.schedule(() => { // problem: this can be cleared by scheduler...
+  setTimeout(() => {
+    marks.forEach((mark) => mark.clear());
+    // }, '+' + event.duration * 0.5);
+  }, event.duration * 1000);
+}; */

packages/react/src/components/Icon.tsx

@@ -0,0 +1,33 @@
+import React from 'react';
+
+export function Icon({ type }) {
+  return (
+    <svg xmlns="http://www.w3.org/2000/svg" className="sc-h-5 sc-w-5" viewBox="0 0 20 20" fill="currentColor">
+      {
+        {
+          refresh: (
+            <path
+              fillRule="evenodd"
+              d="M4 2a1 1 0 011 1v2.101a7.002 7.002 0 0111.601 2.566 1 1 0 11-1.885.666A5.002 5.002 0 005.999 7H9a1 1 0 010 2H4a1 1 0 01-1-1V3a1 1 0 011-1zm.008 9.057a1 1 0 011.276.61A5.002 5.002 0 0014.001 13H11a1 1 0 110-2h5a1 1 0 011 1v5a1 1 0 11-2 0v-2.101a7.002 7.002 0 01-11.601-2.566 1 1 0 01.61-1.276z"
+              clipRule="evenodd"
+            />
+          ),
+          play: (
+            <path
+              fillRule="evenodd"
+              d="M10 18a8 8 0 100-16 8 8 0 000 16zM9.555 7.168A1 1 0 008 8v4a1 1 0 001.555.832l3-2a1 1 0 000-1.664l-3-2z"
+              clipRule="evenodd"
+            />
+          ),
+          pause: (
+            <path
+              fillRule="evenodd"
+              d="M18 10a8 8 0 11-16 0 8 8 0 0116 0zM7 8a1 1 0 012 0v4a1 1 0 11-2 0V8zm5-1a1 1 0 00-1 1v4a1 1 0 102 0V8a1 1 0 00-1-1z"
+              clipRule="evenodd"
+            />
+          ),
+        }[type]
+      }
+    </svg>
+  );
+}