emmy.clerk — org.mentat/emmy-viewers 0.3.1

Clerk-specific utilities for configuring Emmy-Viewers.

Use:

• install-css! for project configuration (or use serve!, halt! and build! in place of the Clerk versions)

• install! for notebook-specific configuration

->TeX clj/s

(->TeX expr & {:keys [simplify?]})

Convert the given expression to TeX format and return a form that renders as TeX via Clerk.

Optionally takes a key :simplify?; if true, renders a simplified form, else renders the original input.

build! clj

(build! opts)

Version of [[nextjournal.clerk/build!]] that swaps out the default JS bundle for a custom Emmy-Viewers bundle and makes sure that all custom CSS for emmy-viewers plugins is available during the build.

In addition to all options supported by Clerk's build!, build! supports the following options:

• :cljs-namespaces: a sequence of CLJS namespaces to compile and make available to Clerk. If provided, build! will compile a custom CLJS bundle and configure Clerk to use this bundle instead of its default. Defaults to nil.

• :custom-js: custom JS bundle to use instead of Emmy's built-in JS.

• :cname: string denoting the custom hostname from which the site will be served. If provided, build! will create a CNAME file containing the value in (:out-path opts). Defaults to nil.

The only other difference is that build! populates :git/sha if it hasn't been provided.

All remaining opts are forwarded to [[nextjournal.clerk/build!]]

custom-js clj/s

CDN address of a pre-built JS bundle for Clerk with support for all of this library's viewers.

halt! clj

(halt!)

Version of [[nextjournal.clerk/halt!]] that additionally kills any shadow-cljs processes, if they are running, and resets all custom CSS entries.

inspect-state clj/s

(inspect-state sym)

Given some symbol representing a client-side Reagent atom, returns a Reagent snippet that will use Clerk's inspect functionality on the dereferenced contents of the atom.

install! clj/s

(install! & viewers)

Calling this function at the top of a Clerk notebook installs all appropriate default viewers for Emmy, along with any viewers supplied to install!.

install! is required for any Mafs, MathBox etc code to render correctly.

install-css! clj

(install-css!)

(install-css! packages)

Calling this function once will configure Clerk to install the CSS for all Emmy-Viewers dependencies into each Clerk page's header.

Pass a subset (or the full set!) of plugins to install a more limited set of CSS files.

literal-viewer clj/s

Default viewer for [[emmy.expression/literal?]] objects.

These are rendered by unwrapping their type layer, so that Clerk can use its defaults for things like ratio.s

meta-viewer clj/s

Catch-all viewer that allows a metadata-carrying object to specify its viewer via the :nextjournal.clerk/viewer slot metadata.

This viewer can be either a:

• symbol referencing a viewer's name
• a viewer object
• a transform function

In the latter case, the transform will be applied to the value and the result will be rendered instead.

multi clj/s

(multi xs)

Given either

• A map of label => value
• A sequence of pairs of the form [label, value]

returns a form that will render in Clerk as a tabbed interface, where clicking the tab assigned to a label will replace the space below with the corresponding value.

Use the second form if you care about the order of your tabs.

multiviewer clj/s

Viewer that applies to Emmy literals by default and presents them with a tabbed interface showing TeX and the original representation, simplified and unsimplified.

NOTE: In its current state multiviewer doesn't apply to anything but literals, but COULD be activated for anything that responds to [[emmy.env/->TeX]].

plugins clj/s

Set of all plugins allowed by install-css!.

reagent-viewer clj/s

This viewer applies to forms that represent quoted Reagent bodies (which might use functions like reagent.core/with-let or third-party components, not just Hiccup syntax).

The Reagent body is treated as the body of a Clerk viewer's :render-fn.

serve! clj

(serve!)

(serve! opts)

Version of [[nextjournal.clerk/serve!]] that swaps out the default JS bundle for a custom Emmy-Viewers bundle and installs all custom CSS for emmy-viewers plugins.

In addition to all options supported by Clerk's serve!, serve! supports the following options:

• :cljs-namespaces: a sequence of CLJS namespaces to compile and make available to Clerk. If provided, serve! will compile a custom CLJS bundle and configure Clerk to use this bundle instead of the Emmy-Viewers bundle.

• :custom-js: custom JS bundle to use instead of Emmy's JS.

• :shadow-options: these options are forwarded to [[mentat.clerk-utils.build.shadow/watch!]]. See that function's docs for more detail.

  This bundle is served from a running shadow-cljs server and recompiled when any dependency or namespace changes. Defaults to nil.

The only other difference is that if (:browse? opts) is true, serve! calls [[nextjournal.clerk/show!]] automatically on (:index opts) if provided.

All remaining opts are forwarded to [[nextjournal.clerk/serve!]].

tabbed-viewer clj/s

Clerk viewer for showing values in a tabbed interface. Use this viewer with

• A map of label => value
• A sequence of pairs of the form [label, value]

Use the second form if you care about the order of your tabs.