APL Orchard: Difference between revisions

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[[File:APL Orchard activity.png|thumb|right|Typical activity over a 24-hour period (UTC)]]
[[File:APL Orchard activity.png|thumb|right|Typical activity over a 24-hour period (UTC)]]
'''The APL Orchard''' ([https://apl.chat apl.chat]) is a [[wikipedia:Stack Exchange|Stack Exchange]] chat room dedicated to learn and teach APL, and to ask and answer questions about both golfing and general coding in APL. It was opened by [[Adám Brudzewsky]] on January 24, 2017, and has since developed its own community, remaining the most active APL chat room today, with over 1.000 messages per week. It passed a total of a 100.000 messages by 200 users in July 2020, and 150.000 messages by 250 users in February 2021. A [[#Chat_bot|chat bot]] evaluates APL expressions.<!--synchronises the Stack Exchange room with the [[wikipedia:Freenode|Freenode]] #apl IRC room.-->
'''The APL Orchard''' ([https://apl.chat apl.chat]) is a [[wikipedia:Stack Exchange|Stack Exchange]] chat room dedicated to learn and teach APL, and to ask and answer questions about both golfing and general coding in APL. It was opened by [[Adám Brudzewsky]] on January 24, 2017, and has since developed its own community, remaining the most active APL chat room today, with over 1.000 messages per week. It passed a total of a 100.000 messages by 200 users in July 2020, and 150.000 messages by 250 users in February 2021. Code can be executed directly in the chat room.


Many participants arrive as complete beginners when it comes to APL, some not even knowing what APL is. Instead, they are attracted by the room being among the most active on Stack Exchange. Other participants are APL veterans. [[Morten Kromberg]] has written a [[blogs|blog]] post about the chat room, focusing on Dyalog Ltd.'s relationship with newcomers and established users.<ref>[[Morten Kromberg]]. [https://www.dyalog.com/blog/2021/02/the-apl-orchard/ The APL Orchard]. [[Dyalog Ltd.|Dyalog]] Blog. 21 February 2021.</ref>
Many participants arrive as complete beginners when it comes to APL, some not even knowing what APL is. Instead, they are attracted by the room being among the most active on Stack Exchange. Other participants are APL veterans. [[Morten Kromberg]] has written a [[blogs|blog]] post about the chat room, focusing on Dyalog Ltd.'s relationship with newcomers and established users.<ref>[[Morten Kromberg]]. [https://www.dyalog.com/blog/2021/02/the-apl-orchard/ The APL Orchard]. [[Dyalog Ltd.|Dyalog]] Blog. 21 February 2021.</ref>
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=== Replies ===
=== Replies ===


To reply to a specific message, hover over the message you want to reply to and click <kbd>↳</kbd> in the bottom-right corner of that message. This will insert a code similar to <code>:12345678</code> into the input field. Proceed to type your response and press enter or click <kbd>send</kbd> to send it. Note that replying to a message pings the user who wrote the message. To reply to users posting from IRC, via the chat bot, it is preferred to use <source lang=md inline>name:</source> instead of <code>@name</code>. Note that IRC users do not see edits, deletions, or formatting.
To reply to a specific message, hover over the message you want to reply to and click <kbd>↳</kbd> in the bottom-right corner of that message. This will insert a code similar to <code>:12345678</code> into the input field. Proceed to type your response and press enter or click <kbd>send</kbd> to send it. Note that replying to a message pings the user who wrote the message. <!-- To reply to users posting from IRC, via the chat bot, it is preferred to use <source lang=md inline>name:</source> instead of <code>@name</code>. Note that IRC users do not see edits, deletions, or formatting. -->


You can view what a message was a reply to by clicking the reply indicator icon <kbd>↰</kbd> to the left of a message, which will either focus the target message on the screen, or, if the target message is too far in the past, open up the transcript pointing to the target message. Alternatively, hovering over a message will highlight the message it is replying to, and all its replies.
You can view what a message was a reply to by clicking the reply indicator icon <kbd>↰</kbd> to the left of a message, which will either focus the target message on the screen, or, if the target message is too far in the past, open up the transcript pointing to the target message. Alternatively, hovering over a message will highlight the message it is replying to, and all its replies.
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In the transcript, the edit history is available for all messages, and this view includes the source of a message. The easiest way to reach it is to middle-click the <kbd>▼</kbd> action menu on the left of the wanted message to open the transcript in a new tab (or click, then click "permalink", if you don't have a middle mouse button), then click <kbd>▼</kbd> and then "history".
In the transcript, the edit history is available for all messages, and this view includes the source of a message. The easiest way to reach it is to middle-click the <kbd>▼</kbd> action menu on the left of the wanted message to open the transcript in a new tab (or click, then click "permalink", if you don't have a middle mouse button), then click <kbd>▼</kbd> and then "history".


=== Chat bot ===
=== Executing code ===


The room features a chat bot, '''TryAPL''', which can evaluate a safe subset of APL.<ref>Using [[Adám Brudzewsky]]'s [https://github.com/abrudz/dyalog-safe-exec Safe Execute for Dyalog APL] via [https://tryapl.org TryAPL]'s API.</ref> To use it, write [[#inline|inline code]] or a [[#Multi-line messages|multi-line code block]], and prepend <source lang=apl inline>⎕←</source> or <source lang=apl inline>⋄</source> to lines you wish to run.<ref>For details, see [https://codegolf.stackexchange.com/users/75949 the chat bot's profile].</ref>
The APL Orchard features two ways of executing code directly in the chat room, both based on [[TryAPL]]:


=== APL execution userscript ===
* [[TryAPL#Chatbot|A chatbot]] which responds to code in posted messages.
 
* [[TryAPL#Chat box exec|A userscript]] which evaluates code directly in the message input field.
Similar in functionality to the [[#Chat_bot|chat bot]], the userscript adds an [[Execute]] button (<kbd>⍎</kbd>) to the right of the chat box. Clicking it or hitting access-key<ref>The keyboard combination varies by browser and operating system. For details, see  W3Schools' [https://www.w3schools.com/tags/att_global_accesskey.asp#table2 HTML accesskey Attribute] article.</ref> <kbd>x</kbd>, uses the [[Running APL|TryAPL]] API to execute the first line currently in the chat box, and appends the result to the chat box, while also formatting the chat box content to be rendered in monospace font. One can then hit the <kbd>send</kbd> button or <kbd>Enter</kbd> to submit the message. With a userscript extension (for example [https://www.tampermonkey.net/ Tampermonkey]) installed, navigating to [https://github.com/razetime/userscripts/raw/main/chatexec.user.js the raw file], should cause the extension to suggest automated installation. Alternatively, the script can be downloaded from the [https://github.com/razetime/userscripts userscripts GitHub repository] of [[User:Razetime|Razetime]], or from the [https://greasyfork.org/en Greasyfork userscript host] under the name [https://greasyfork.org/en/scripts/419379-chat-box-exec Chat box exec].


== Conventions ==
== Conventions ==

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