Changelog

Changes can be:

• 🌟⭐️💫 features
• 🐞🐜 friendly or nasty bugs
• 🛠 dev improvements

Unreleased

...

0.13.838 (2023-03-02)

• 🌟 Make build-graph recur until all transitive deps are analyzed (#381)

  Until now Clerk did not analyze the full transitive dependency graph which could lead to Clerk not detecting a change properly. Analysis is now recursive which means it's taking a bit longer initially. We cache analysis results per file in memory so subsequent analysis should be fast. We will follow up with visualizing the progress of analysis & execution.

  Also discovered cases where classes instead of symbols could end up in the dependency graph and introduced normalization to symbols.

  This also gets rid of the ->hash must be ifn? warning which fixes #375.

• 🔌 Offline suport: Serve viewer.js from storage.clerk.garden (#415)

  Serve viewer.js from clerk CAS on storage.clerk.garden instead of google bucket.

  • Fixes #377: adds support for serving the source map for Clerk's cljs bundle
  • Fixes #387: avoids a http request on boot which would lead to a failure when offline
  • Fixes #408: Serve js from CDN

• 💫 Add clerk/resolve-aliases and make alias resolution explicit (#410)

  This makes the alias resolution explicit via a new clerk/resolve-aliases function. The recommendation is now to use the full namespace in :render-fns or make the conversion explicit using clerk/resolve-aliases. This is a breaking change.

  We've also removed the automatic resolution from ->viewer-fn/eval because it would depend on the evaluation context (a notebook that defines a viewer using aliases would render correctly but things could break if that viewer is being reused from another namespace that doesn't define the same aliases).

  These were the previously defined aliases which you must now change to these fully qualified symbols:

  {'j 'applied-science.js-interop
   'reagent 'reagent.core
   'v 'nextjournal.clerk.viewer
   'p 'nextjournal.clerk.parser}
  

• 💫 Simplify modifying viewers (#412)

  By exposing the two-arity version of reset-viewers! in the clerk namespace. Also support symbols representing namespaces as the scope.

• ✍️ Support Sidenotes (#392)

  Using the pandoc footnotes extension

  Makes Clerk leverage the improved Sidenotes/Footnotes support from nextjournal/markdown#11.

• 💫 Refactor viewer names to symbols matching vars (#409)

  This changes the viewer names to be namespaced symbols matching the var names instead of plain keywords. This still allows to use them plainly without a dependency on Clerk using the metadata notation but enables jump to definition from your editor.

• 🌄 image and caption helpers (#337)

  • clerk/image as convenience function to create a buffered image from a string or anything javax.imageio.ImageIO/read takes (URL, File, InputStream).
  • clerk/caption to render text as caption below any arbitrary content

• 🪡 Sticky Table Headers (#305)

  • Keep table headers in view when scrolling
  • Keep elision buttons in view when scrolling
  • Add vh-sticky-table-header to deps.cljs

• 🛠 Simplify elision handling with continuation (#421)

  Until now present* took a :path and :current-path argument would have a code path to descend into the nested data structure when resolving an elision. This drops this code path and uses a continuation function for a path instead.

• 🔪 Hide Clerk-specific metadata from code blocks (#324)

  This removes the Clerk-specific metadata annotation like ^{:nextjournal.clerk/viewer ,,,} from the code displayed in code cells in order to not distract from the essence. Metadata not coming from Clerk is left intact.

• 💫 Add dynamic js/import for JavaScript Modules (#304)

  • Extend js global namespace with dynamic js/import
  • Add convenience react hook wrappers

• ⭐️ Countless improvements and bug fixes

  • 💫 Expose clojure.math to sci env
  • 💫 Support markdown hard line breaks
  • 💫 Use block ids as filenames in snapshots script
  • 💫 Use ids to assign react keys and factor out nextjournal.clerk.render/render-processed-block
  • 💫 Add clerk experimental ns with slider & text input
  • 💫 Add read-js-literal, closes #249
  • 💫 Speed up analysis using loc->sym cache
  • 💫 Set sci ns to mirror JVM ns (#401), closes #362
  • 💫 Expose navbar to sci env, closes #312
  • 💫 Remove keyword from viewer meta api, use symbol instead
  • 💫 Augment eval+cache! exception with form + location info (#394)
  • 💫 Switch to :quick algorithm for editscript diff
  • 💫 Tools analyzer workaround, fixes issue with class redefinition + instance? checks (#386)
  • 💫 Switch to plotly.react for better update performance
  • 💫 Expose end-line / end-column of code cells when parsing
  • 💫 Watch sync atoms and recompute! when they're changed (#354)
  • 💫 Make clerk sync work with plain cljs using add-watch, fixes nextjournal/clerk-cljs-demo#1
  • 💫 Improve performance of analyzer/exceeds-bounded-count-limit?
  • 💫 Don't mutate global resource->url atom in build! (#333)
  • 💫 Add deps.cljs to ease custom cljs builds (#326)
  • 💫 Respond to v/clerk-eval with promise (#322)
  • 💫 Support infinite sequences in table viewer (#378)
  • 🐜 Adjust /js/viewer.js url for relative urls fixing issues with custom viewer.js in non-index notebooks. (#346)
  • 🐜 Fix cacheable-value? check for lazy infinite sequences (#356), fixes #325
  • 🐞 Fix code listings in result viewer and add example, fixes #366
  • 🐞 fixes " around blockquotes.
  • 🐞 Drop default parsing of hashtags and internal links, fixes #383
  • 🐞 Fix closing parens inside table cells, fixes #390
  • 🐞 Escape closing script tag in markup, fixes #391
  • 🐞 Don't send websocket message in static build, fixes #340 & fixes #363
  • 🐞 Unify code and code listing appearance, closes #366, closes #376
  • 🐞 Fix example macro (#407)
  • 🐞 Make webserver host configurable and default to localhost, fixes #369
  • 🐞 Deduplicate index in build! when using glob paths, fixes #405
  • 🐞 Fix html with odd length lists (#398), fixes #395
  • 🐞 Server-Side-Rendering Improvements (#396)
  • 🐞 Downgrade framer-motion version used in deps.cljs, fixes #374
  • 🐞 Fix viewer nesting (e.g. table inside html) (#352)
  • 🐞 Fix hashing when used as a git dep (#350), Closes #349.
  • 🐞 Fix NPE in builder/build-static-app! when there's nothing to build, closes #339
  • 🐞 Prevent initial flashing of "Projects" when ToC is present, closes #269
  • 🐞 Fix number viewer for big ints and ratios, fixes #335
  • 🐞 Swap out unicode ellipsis for ... (#327)
  • 🐞 Drop code blocks with reader conditionals without clj branch, fixes #332
  • 🐞 Fix deprecation warning for hide-result
  • 🐞 Fix js-interop destructuring in SCI context (#368)
  • 🐞 Fix TOC expanding when changing a heading, fixes #422
  • 🛠 Augment exception when read fails (#334)
  • 🛠 Enable working with local css files in dev
  • 🛠 Don't litter log with unactionable unhashed deps warning
  • 🛠 Throw when webserver can't be started

• 🛠 Drop viewers dependency, inlining used code (#348)

  This drops the dependency on https://github.com/nextjournal/viewers and inlines the relevant code in Clerk.

• 🐜 Fix uberjar usage (#358), closes #351.

  Fixes an error when Clerk is part of an uberjar because the render.hashing assumed it was being consumed as a git dep.

  When packaging Clerk as an uberjar, you need the following build.clj task as part of your build:

  (defn package-clerk-asset-map [{:as opts :keys [target-dir]}]
    (when-not target-dir
      (throw (ex-info "target dir must be set" {:opts opts})))
    (let [asset-map @nextjournal.clerk.config/!asset-map]
      (spit (str target-dir java.io.File/separator "clerk-asset-map.edn") asset-map)))
  

• 💫 Deduplicate heading ids to improve linking (#336)

  • Fixes #330: Markdown headings don't have unique IDs
  • Fixes #343: Does not scroll to relevant section when using anchor link

  Also extract emojis into separate attribute during markdown parsing.

• 🛠 Enable linting with clj-kondo in CI

• 🛠 Drop viewer-js-hash from repo, compute it at runtime (#347)

  This drops the viewer-hash-js from the git repo, it was annoying as it always lead to conflicts. Instead we calculate the hash on startup in Clerk dev and when Clerk is used as a git dep. This step is skipped in the jar.

  When building a jar we now expect to see a Skipping coordinate warning.

  Also note that you might need to run bb build+upload-viewer-resources before the jar build.

• 🛠 Upgrade dependencies

  • Bump edamame dep
  • Bump sci to v0.6.37
  • Bump beholder dep, closes #397

0.12.707 (2022-12-06)

• 🐜 Make edn transmission not fail on bad keywords and symbols, fixes #116
• 🐜 Fix silent failure when analyzing invalid def, fixes #307
• 🐞 Fixes an issue with codemirror syntax highlighting which prevented multi-line strings to be displayed correctly
• 🐞 Preserve whitespace in string viewer
• 🐞 Fix parens placement when expanded string viewer is embedded in coll (#320)

0.12.699 (2022-12-02)

• 🌟 Clerk sync for vars holding atoms (#253, #268)

  Introduce ^:nextjournal.clerk/sync metadata annotation for vars holding atoms to enable automatically syncing state between JVM Clojure and the SCI environment running in the browser: the var will be interned by Clerk in the sci environment and calls to swap! or reset! will be syncronized to the JVM. Use editscript for sending a minimal patch to the browser to enable 60fps updates.

• 🌟 Improvements to Clerk's SCI Environment running in the Browser

  • Simplify writing of viewer :render-fns by dropping need v/html is no longer needed in render functions of custom viewers, vector values will be handled as reagent components.
  • Introduce nextjournal.clerk.render namespace to hold all :render-fns and reference them using fully qualifed names from nextjournal.clerk.viewer to make it obvious where they are coming from. Also refactor nextjournal.clerk.sci-viewer to nextjournal.clerk.sci-env.
  • Support alias resolution for :render-fns (#276)
  • Upgrade to React 18.2 and introduce nextjournal.clerk.render.hooks as a thin cljs wrapper around React hooks also useable from the sci env. (#237, #242)
  • Introduce nextjournal.clerk.render.code ns with support for read-only and editable code cells (#285)
  • Improve error handling with ErrorBoundary rewrite using shadow.cljs.modern/defclass (#255)
  • Fix page jump between updates for Vega and Plotly viewer and improve error display. This is implemented using React Hooks. (#231)
  • Support callback for vega viewer to access the vega-embed object (#279)
  • Move sci env deps.edn to separate deps root (#278). This allows folks to take over the cljs build of clerk in order to support additional namespaces.

• 💫 Show shape of data using auto-expansion of results (opt-in for now) (#258)

  This allows letting Clerk auto expand data results via the :nextjournal.clerk/auto-expand-results? true setting in the ns metadata. You can use the same key in ::clerk/opts on single result too.

• 💫 Improvement to static nextjournal.clerk/build!

  • Allow to set Open Graph Metadata for notebooks using :nextjournal.clerk/open-graph map in ns metadata with :url, :title, :description and :image keys (#243)
  • Support :ssr setting for server-side rendering in static builds (#254, #275)
  • Support :compile-css attribute to compile step with Tailwind (#246)

• 🌟 Support Viewer CSS class customizations (#294)

  This supports providing custom classes to viewers and the notebook viewer which should allow for most use cases and does not require actually overriding the base styles. Once a :nextjournal.clerk/css-class is available on the viewer or in document settings, the available class will be used and no further viewer classes will be assigned.

• 💫 Let viewer opt out of var-from-def unwrapping

  This fixes an inconsistency in the viewer api: until now we'd unwrap a :nextjournal.clerk/var-from-def when a viewer is applied using an fn? like clerk/table but not when given a viewer map.

  We now always unwrap the var unless the viewer opts out with a truthy :var-from-def? key.

• 💫 Make nextjournal.clerk.parser usable in CLJS

• 💫 Support clearing the cache of a single result using clerk/clear-cache!

• 💫 Set #-fragment when clicking on TOC items (works in unbundled case)

• 🛠 Use sci.ctx-store and bump sci (#282)

• 🐜 Detect interned vars to not consider them as missing, introduce setting to opt-out of throwing when missing vars are detected (#301). Fixing #247.

• 🐜 Fix circular dep error referencing fully-qualified var (#289)

• 🐞 Fixes behaviour of clerk/doc-url in static app (#284)

• 🐞 Fix links to clerk-demo build (#252)

• 🐞 Bump sci with cljs.core/array (#250)

• 🐞 Fix content-addressing of image-blobs and compiled CSS during static build (#259)

• 🐞 Add validation for :nextjournal.clerk/width fixing #217.

• 🐞 Fix inspect with nil values (#263)

0.11.603 (2022-10-17)

• 🌟 Add 🚰 Tap Inspector notebook to let Clerk show clojure.core/tap> stream. Viewable via (nextjournal.clerk/show! 'nextjournal.clerk.tap).

• 🌟 Improvements to static building including Clerk-viewer based build progress reporter: Add nextjournal.clerk/build! and document it, it supersedes the now deprecated nextjournal.clerk/build-static-app!

  • Support :index option for overriding the index filename
  • Support passing :bundle and :browse without ?, making cli-usage more convienient
  • Add :dashboard option to show a Clerk viewer based build report dashboard
  • Change :bundle default to false
  • Split :paths into :paths and :paths-fn option to make symbol case explicit
  • Improve errors when passing invalid options
  • Print cli usage help when :help is set

• ⭐️ Extend nextjournal.clerk/show! accept more argument types:

  • Symbols representing namespaces on the classath: (nextjournal.clerk/show! 'nextjournal.clerk.tap)
  • Namespaces: (nextjournal.clerk/show! (find-ns 'nextjournal.clerk.tap))
  • URLs as strings or java.net.URLs: (show! "https://raw.githubusercontent.com/nextjournal/clerk-demo/main/notebooks/rule_30.clj")
  • In memory string readers: (show! (java.io.StringReader. ";; # String Notebook 👋\n(+ 41 1)")), fixes #168

• Everything that clojure.core/slurp supports

• ⭐️ Support babashka.cli for nextjournal.clerk/serve! and nextjournal.clerk/build! via metadata annoatations. To use it add org.babashka/cli {:mvn/version "0.5.40"} or newer to your :deps and set :main-opts ["-m" "babashka.cli.exec"].

• 💫 Support providing embed options to vega vl viewer, can be passed via :embed/opts keys

• 💫 Inline plotly and vega viewers (they were previously imported from nextjournal/viewers) and improve error display for them

• 💫 Handle cljc files in analyzer/ns->file

• 🐜 Fix results with *print-length/depth* being set (thanks @russmatney, #224)

• 🐜 Fix display of nested clojure.lang.IDerefs (e.g. atoms).

• 🐜 Fix analyzer issues with clojure proxy (🙏 @zampino, fixes #222)

• 🐞 Fix extra wrapping in clerk/defcached and clerk/with-cache

• 🛠 Improve clerk-show emacs command (🙏 @benjamin-asdf, fixes #170)

• 🛠 Upgrade depdendencies, fixing warnings under Clojure 1.11.

  • babashka/fs: 0.1.5 → 0.1.11
  • babashka/sci: 0.3.5 → 0.4.33 (🙏 @borkdude)
  • com.taoensso/nippy: 3.1.1 → 3.2.0
  • edamame: 0.0.11 → 1.0.0
  • http-kit: 2.5.3 → 2.6.0
  • rewrite-clj: 1.0.699-alpha → 1.1.45
  • labdaisland/uri: 1.11.86 → 1.13.95
  • org.clojure/tools.analyzer: 1.0.0 1.1.0

0.10.562 (2022-09-18)

• 🐞 Revert "Inline vega lite viewer and make it show errors" as it caused a regression that a vega visualization would only update after a refresh.

0.10.560 (2022-09-14)

• 💫 Improve errors on eval by keeping location information on form
• 🐜 Don't throw when valuehash cannot be computed for deref dep
• 🐞 Inline vega lite viewer and make it show errors
• 🐞 Fix multi-expand via Option+Click
• 🛠 Allow to run ui tests against local build

0.10.550 (2022-09-06)

• 🌟 Support setting visibility for results 🙈

  Specifying code cell & result visibility is now easier & more powerful. Previously setting result visibility only possible per-form using a hide-result viewer. You can now pass a map with :code and :result keys to control code & result visibility individually.

  To set this per-document, put the visibility on the ns form like for example:

  (ns my-namespace
    "This namespace will have code cells folded and results hidden"
    {:nextjournal.clerk/visibility {:code :fold :result :hide}})
  

  You can still override this per-form using metadata, so the following form will be shown.

  ^{:nextjournal.clerk/visibility {:code :show :result :show}}
  (inc 41)
  

  or change the defaults midway through the doc using a visibility marker:

  {:nextjournal.clerk/visibility {:code :show :result :show}}
  

  Also support :nextjournal.clerk/toc setting on ns metadata.

• ⭐️ Fail eval if var is only present at runtime but not in file 🕵🏻

  This makes Clerk be more strict than the REPL and actually complain when one still depends on a var no longer present in the file.

  The check is currently only performed for the notebook being shown iff it starts with an ns form.

• 💫 Rename viewer attribute [:fetch-opts :n] to :page-size

• 💫 More subtle indication for folded code cells

• 💫 Cut down of depedencies of nextjournal.clerk.sci-viewer in order to simplify consumption as a library and slim down bundle by 290kb (73kb gzip)

• 💫 Unbundle images when :bundle? is false (#208)

  As a quick fix to make the Clerk Book viewable we're now writing images for the static build to files when :bundle? is set to false. In a follow-up we'll support absolute urls for the images and introduce a separate flag for this.

• 🐜 Don't attempt to check bounded count limit for non-freezable things, fixes #199 (#201)

• 🐜 Fix regression in showing sorted-map results

• 🐜 Fix table viewer normalization error when given sorted map

• 🐞 Use PngEncoder lib for 10x improvement in encoding performance (#197)

• 🐞 Overflow per single result not by result container (#198)

  When result contains multiple tables, allow scrolling each table individually instead of the entire result container. Also works with plots.

• 🐞 Equalizes vertical spacing between Markdown, code and results

• 🐞 Fixes the quoted string viewer layout when expanded

0.9.513 (2022-07-18)

• 🌟 Valuehash ⚛️

  Treat clojure.core/deref expressions separately in the dependency graph and attempt to compute a hash at runtime based on the value of the expression. This lets Clerk see an updated value for these expressions without needing to opt out of Clerk's caching using ^:nextjournal.clerk/no-cache (#187).

• ⭐️ Expand indicators & allow option-click to expand all siblings

  This adds an affordance to make it obvious that collections can be expanded. In addition, we support Option-Click to expand all sibling nodes on a level.

• ⭐️ Add nextjournal.clerk/eval-cljs-str that can be used to provide viewer :render-fns from other sources. Defining them in a separate .cljs file makes linting work on them.

• 💫 Add docstrings for Clerk's public API in nextjournal.clerk.

• 🐞 Improve error handling in :render-fns, showing better errors for different failure modes:

  • undefined symbol on read
  • runtime exception
  • calling inspect without a valid presented value
  • passing an invalid hiccup form to v/html

• 🐞 Fix Clerk's dependency analysis to detect in macros

• 🛠 Bump deps of io.github.nextjournal/clojure-mode and io.github.nextjournal/markdown

• 🛠 Refactor builder, parser eval, to its own namespaces, rename hashing to analysis.

• 🛠 Remove keyword indirection from viewer API

• 🛠 Lean more heavily on tools.analyzer for depedency analysis

0.8.470 (2022-06-20)

• 🐞 Markdown library now uses a GraalJS version compatible with Java 8. Fixes #178
• 🐞 Bundle asset map during Maven release to allow clerk to function behind a proxy. Fixes #147
• 🛠 Preserve asset name in content-addressed asset URL (#181)

0.8.463 (2022-06-16)

• 💫 Support :nextjournal.clerk/no-cache meta on form also for vars.

  Previously it would have to go on a different place for vars than for unnamed top-level expressions.

  Setting it on the var will be deprecated and so consistently setting it on the form is recommend from now on.

• 💫 Support rich values (with viewers) in table headers

• 🐜 Preserve *ns* during analysis and eval (#173)

• 🐜 Upgrade markdown library with

  • support for loose lists
  • fix for rendering of inline images
  • updated dependencies for clojure.data.json and org.graalvm.js/js

• 🐞 Reduce margin between prose and results

• 🐜 Fix regression in parsing markdown blocks following code cells in wrong order

• 🛠 Switch to kaocha for better test report output

0.8.451 (2022-06-09)

• ⭐ Move default viewers to vars to make inspecting & building on them easier (#167)
• 💫 Introduce flexible grid layout viewers row and col (#162)
• 🐜 Introduce checks for forms which cannot be cached to disk (#166)
• 🐞 Display inline comments in code cell rather than in prose, fixes #71.

0.8.445 (2022-06-01)

• 💫 First cut of Clerk Examples

  Add the nextjournal.clerk/example macro that evaluates to nil, just like clojure.core/comment when used outside of Clerk. When used in the context of Clerk it renders the expressions with their resulting values.

• 🐞 Fix reported duration for static bundle build step

0.8.442 (2022-06-01)

• 🌟 Simplify viewer api by letting :transform-fn act on wrapped-value (#152)

  This simplifies the viewer api by letting :transform-fn act on the wrapped-value. This way the :transform-fn can now serve as the single JVM-extension point and also serve as :fetch-fn (using mark-presented) and :update-viewers-fn.

  In the case of a :fetch-fn the transformation would previously happen in a second pass. Now it is always eager, which should make it much clearer what's happening.

  Also do a naming pass:

  • describe → present
  • merge-descriptions → merge-presentations

• ⭐️ Extend the reach of the viewer api to the root node.

  This allows full customization of how a Clerk doc is displayed. Showcase that by implementing a slideshow viewer.

• ⭐️ Show render-fn errors and simplify and improve default viewers

  Show a somewhat useful error when a viewer's :render-fn errors, either on eval or when invoked as a render function later. Since the stack property of js/Error isn't standardized the usefulness differs between browsers and variants. The advanced compiled js bundle is currently lacking source maps so the stack isn't useful there, yet.

  Also simplify and improve the default viewers by having a fallback reader function for unknown tags and display anything that's readable with it using the pagination inside the browser. We can use this as a generic fallback and drop a number of specialised viewers (uuid?, fn?, inst?). It also means Clerk will now display these fallback objects identical to how Clojure will print them. Note that this also means that bringing in library like cider.nrepl that extends print-method will affect how things are displayed in Clerk.

  Lastly, we include a viewer for clojure.lang.IDeref that will use Clerk's JVM-side pagination behaviour for the :val.

  More rationale and live examples in the Better Printing ADR notebook.

• 💫 Refactor analysis to support multiple defs per top-level form (#159)

• 🐜 Make no-cache on side-effecting var invalidate dependents (#158), fixes #157

• 🐞 Fix lazy loading when viewer is selected via metadata.

• 🐞 Perform bounded count limit check on tree (#154)

  Previously this would only be performed on the root node so we'd go out of memory attempting to cache a value like {:a (range)}.

• 🛠 Update SCI & SCI configs (#151)

• 🛠 Start Clerk on bb dev after first cljs compile and forward serve opts.

0.7.418 (2022-04-20)

• 🐜 Fix regression in heading sizes & margins (#135)

0.7.416 (2022-04-19)

• 🌟 Support Table of Contents & dark mode toggle, #109. ToC is opt-in via ^:nextjournal.clerk/toc metadata on ns form.
• 🌟 Use viewer api to to enable full customization of markdown nodes (#122)
• 💫 Expand glob paths and support symbols pointing to vars for build-static-app! (#130)
• 💫 Use relative links inside the static-app (#132)
• 🐞 Always open static build index via file: protocol, closes #96
• 🐞 Remove column truncation in table viewer (#124)
• 🐞 Make lazy loading respect viewers on form
• 🐞 Fix .cljc file renaming in unbundled static app (#123)
• 🐞 Leave it to viewers to opt into tailwind's not-prose class
• 🛠 First cut of browser tests using nbb & playwright (#97)
• 🛠 Write hash in pre-commit hook for predicable viewer.js location, build JS in CI (#107)

0.6.387 (2022-03-03)

• 🌟 Add clerk/recompute! for fast recomputation of doc without re-parsing & analysis
• 🌟 Normalize viewers to support full map form (#77)
• 🌟 Less whitespace and better alignment when expanding nested maps
• ⭐️ Add reagent and js-interop to viewer api (#105)
• ⭐️ Add with-d3-require to viewer api, tweak sci read opts (#86)
• 💫 Make string viewer show newlines and allow to toggle breaking (#104)
• 💫 Tweaked the theme and make data & code viewers use consistent color scheme. Prepare dark mode support.
• 💫 Add experimental defcached and with-cache macros to enable access to Clerk's view of a var or expression respectively.
• 💫 Let code viewers use horizontal scrolling instead of line wrapping to improve readability, especially on mobile.
• 🐞 Make clear-cache! also clear in memory cache (#100)
• 🐞 Protect var-from-def? against types that throw on get, closes #64
• 🐞 Drop unused tools.deps.alpha dep
• 🐜 Fix inconsistent hashing when form contains a regex (#85)
• 🐜 Fix find-location for namespaces with dashes in them
• 🐜 Fix in memory cache not being used for unfreezable results (#82)
• 🐜 Don't catch errors occurring on JVM-side of the viewer api (:pred & :transform-fn)
• 🐜 Opt out of caching deref forms
• 🐜 Protect cache from caching nil from repeated defonce eval
• 💫 Upgrade to SCI v0.3.1

0.5.346 (2022-01-27)

This release focuses on improving the viewer api:

• 🌟 new built-in image viewer component for java.awt.image.BufferedImage with automatic layouting. These can be easily created constructed from javax.imageio.ImageIO/read from File, URL or InputStream.
• 🌟 Enable nested viewers inside e.g. html or table viewers.
• 🌟 Allow to convey viewers out-of-band using metadata. Clerk's viewer api has been based on functions. This can be undesired if you want to depend on the unmodified value downstream. You can now alternatively use metadata using the :nextjournal.clerk/viewer to convey the viewer. Valid values are viewer functions or keywords. The latter is useful when you don't want a runtime dependency on Clerk. (#58)
• 💫 :render-fn must now be quoted to make it clearer it doesn't run on the JVM but in the browser (#53)
• 💫 Make all viewer functions take an optional map to specify the with using the :nextjournal.clerk/width with valid values :full, :wide or :prose. (#53)
• 💫 Enable access to vars resulting from eval in viewers @philomates (#47)
• 💫 Expose title, table of contents as the result of parse. Set title in browser. @zampino (#56)
• 💫 Add halt! to allow stopping Clerk @SneakyPeet (#43)*
• 💫 Upgrade to tailwindcss 3 and use via play cdn. This enables using any tailwind properties. (#36)
• 💫 Allow to bring your own css and js (#55)
• 🐜 Introduce print budget to elide deeply nested structures. This should fix overflowing the browser with too much data for certain shapes of data (#48)
• 🐞 Recover from a viewer rendering error without requiring a browser reload and improve error display.
• 🛠 Refactor & tests various parts

0.4.316 (2021-12-21)

• 💫 Add option to control opening of built static app (@filipesilva, #31)
• 🐜 Fix path error on windows by bumping markdown dep (#34)
• 🐞 Fix browse in build-static-app! on windows (#39)

0.4.305 (2021-12-13)

• 🌟 Support markdown as an alternative to Clojure source code for prose-heavy documents.
• 🌟 Changed viewer api: Added a :transform-fn that allows a transformation of a value in JVM Clojure. Also rename :fn to :render-fn for clarify and ensure the :pred only runs on JVM Clojure to enable using predicates that cannot run in sci in the browser. Add support for serving arbitrary blobs via a :fetch-fn that returns a map with :nextjournal/content-type and nextjournal/value keys (example).
• 🌟 Added v/clerk-eval to the viewer api which takes a quoted form and evaluates it in the context of the document namespace.
• ⭐️ Allow setting code cell & result visibility via :nextjournal.clerk/visibility metadata on a form. Valid values are: :show (default) :fold or :hide. These settings can be set on individual forms, setting them on the ns form changes the default for all forms in the document. If you want to affect only the ns form, use :fold-ns or :hide-ns (example).
• 💫 Added a dynamic binding config/*in-clerk* that is only true when Clerk is driving evaluation.
• 💫 Persist viewer expansion state across document reloads and make document updates minimize repaints and flickering.
• 💫 Keep document scroll position when an error is shown by moving error into overlay.
• 💫 Wrap sci context in an atom to let consumers change it.
• 💫 Exclude Emacs lock files from being shown via file watcher #22 (@ikappaki)
• 💫 Add viewers for Clojure vars and a catch all pr-str viewer
• 🐜 Don't cache uncountable values within *bounded-count-limit* #15.
• 🐞 Prevent infinite loop when calling show! in a notebook using config/*in-clerk*.

0.3.233 (2021-11-10)

• 💫 Bump viewers & deps to support ordered list offsets
• 🐜 Fix error in describe when sorting sets of maps
• 🐜 Fix arity exception when running table viewer predicates
• 🐞 Restore page size of 20 for seqs
• 🐞 Fix regression in closing parens assignment
• 🛠 Automate github releases

0.3.220 (2021-11-09)

• 🌟 Add much improved table viewer supporting lazy loading and data normalization
• 💫 Add char viewer
• 🐞 Fix exception when rendering hiccup containing seqs
• 🐞 Parse set literals as top level expressions
• 🐞 Add scm information to pom.xml

0.2.214 (2021-11-04)

• 💫 Support setting :nextjournal.clerk/no-cache on namespaces
• 🐜 Fix for unbound top-level forms not picking up dependency changes

0.2.209 (2021-11-03)

• 🌟 Enable lazy loading for description and combine with fetch. This let's Clerk handle moderately sized datasets without breaking a sweat.
• ⭐️ Add clerk/serve! function as main entry point, this allows pinning of notebooks
• 💫 Compute closing parens instead of trying to layout them in CSS
• 💫 Fix and indicate viewer expansion
• 🐜 Wrap inline results in edn to fix unreadable results in static build
• 🐜 Make hiccup viewer compatible with reagent 1.0 or newer
• 🐞 Fix lazy loading issues arising from inconsistent sorting
• 🐞 Remove ->table hack and use default viewers for sql
• 🐞 Fix check in maybe->fn+form to ensure it doesn't happen twice
• 🐞 Defend ->edn from non clojure-walkable structures
• 🐞 Fix error when describing from non-seqable but countable objects
• 🐞 Fix error in build-static-html! when out dirs don't exist
• 🛠 Setup static snapshot builds
• 🛠 Fix stacktraces in dev using -OmitStackTraceInFastThrow jvm opt
• 🛠 Add build task for uploading assets to CAS and update in code

0.1.179 (2021-10-18)

• 🐞 Fix lazy loading for non-root elements
• 🐞 Fix exception when lazy loading end of string
• 🐞 Fix regression in clerk/clear-cache!

0.1.176 (2021-10-12)

💫 Clerk now runs on Windows.

• 🐜 Fix error showing a notebook on Windows by switching from datoteka.fs to babashka.fs
• 🐞 Fix parsing issue on Windows by bumping rewrite-clj, see clj-commons/rewrite-clj#93

0.1.174 (2021-10-10)

• ⭐️ Support macros that expand to requires
• 💫 Better function viewer showing name
• 💫 Add viewport meta tag to fix layout on mobile devices
• 🐜 Fix error in returning results when unsorted types (e.g. maps & sets) contain inhomogeneous keys.
• 🐜 Add reader for object tag
• 🐞 Fix view when result is a function
• 🐞 Fix display of false results
• 🐞 Fix map entry display for deeply nested maps
• Show plain edn for unreadable results
• 🐞 Fix showing maps & sets with inhomogeneous types
• 🛠 Fix live reload in dev by using different DOM id for static build

0.1.164 (2021-10-08)

👋 First numbered release.