doc/Factoids.md: update TOC and add code factoid languages

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@ -2,57 +2,66 @@ Factoids
========
<!-- md-toc-begin -->
* [Channel namespaces](#channel-namespaces)
* [Special commands](#special-commands)
* [/say](#say)
* [/me](#me)
* [/call](#call)
* [/msg](#msg)
* [Special variables](#special-variables)
* [$nick](#nick)
* [$args](#args)
* [$arg[n]](#argn)
* [$arg[n:m]](#argnm)
* [$arglen](#arglen)
* [$channel](#channel)
* [$randomnick](#randomnick)
* [$0](#0)
* [List variables](#list-variables)
* [modifiers](#modifiers)
* [action_with_args](#action_with_args)
* [add_nick](#add_nick)
* [Channel namespaces](#channel-namespaces)
* [Special commands](#special-commands)
* [/say](#say)
* [/me](#me)
* [/call](#call)
* [/msg](#msg)
* [/code](#code)
* [Supported languages](#supported-languages)
* [Special variables](#special-variables)
* [testargs example](#testargs-example)
* [Setting a usage message](#setting-a-usage-message)
* [poll/vote example](#pollvote-example)
* [SpongeBob Mock meme example](#spongebob-mock-meme-example)
* [Using command-piping](#using-command-piping)
* [Improving SpongeBob Mock meme](#improving-spongebob-mock-meme)
* [Special variables](#special-variables-1)
* [$nick](#nick)
* [$args](#args)
* [$arg[n]](#argn)
* [$arg[n:m]](#argnm)
* [$arglen](#arglen)
* [$channel](#channel)
* [$randomnick](#randomnick)
* [$0](#0)
* [List variables](#list-variables)
* [modifiers](#modifiers)
* [action_with_args](#action_with_args)
* [add_nick](#add_nick)
* [Adding a factoid](#adding-a-factoid)
* [factadd](#factadd)
* [factadd](#factadd)
* [Viewing/triggering a factoid](#viewingtriggering-a-factoid)
* [Viewing/triggering another channel's factoid](#viewingtriggering-another-channels-factoid)
* [fact](#fact)
* [fact](#fact)
* [Deleting a factoid](#deleting-a-factoid)
* [factrem](#factrem)
* [forget](#forget)
* [factrem](#factrem)
* [forget](#forget)
* [Aliasing a factoid](#aliasing-a-factoid)
* [factalias](#factalias)
* [factalias](#factalias)
* [Moving/renaming a factoid](#movingrenaming-a-factoid)
* [factmove](#factmove)
* [factmove](#factmove)
* [Changing a factoid](#changing-a-factoid)
* [factchange](#factchange)
* [factundo](#factundo)
* [factredo](#factredo)
* [factset](#factset)
* [factunset](#factunset)
* [Factoid Metadata List](#factoid-metadata-list)
* [factchange](#factchange)
* [factundo](#factundo)
* [factredo](#factredo)
* [factset](#factset)
* [factunset](#factunset)
* [Factoid Metadata List](#factoid-metadata-list)
* [Finding a factoid](#finding-a-factoid)
* [factfind](#factfind)
* [factfind](#factfind)
* [Information about a factoid](#information-about-a-factoid)
* [factinfo](#factinfo)
* [factshow](#factshow)
* [factset](#factset-1)
* [factlog](#factlog)
* [count](#count)
* [histogram](#histogram)
* [top20](#top20)
* [factinfo](#factinfo)
* [factshow](#factshow)
* [factset](#factset-1)
* [factlog](#factlog)
* [count](#count)
* [histogram](#histogram)
* [top20](#top20)
<!-- md-toc-end -->
### Channel namespaces
## Channel namespaces
Factoids added in one channel may be called/triggered in another channel or in private message, providing that the other channel doesn't already have a factoid of the same name (in which case that channel's factoid will be triggered).
Factoids may be added to a special channel named `global`. Factoids that are set in this channel will be accessible to any channels. Factoids that are set in a specific channel will override factoids of the same name that are set in the `global` channel or other channels.
@ -63,33 +72,33 @@ Now imagine `##c++` also has a `malloc` factoid. If you invoke it in `##c++` the
However, if there is no `malloc` factoid in the `global` channel but there is one in `##c` and `##c++`, and you attempt to invoke it in any other channel then PBot will display a disambiguation message listing which channels it belongs to and instructing you to use the [`fact`](#fact) command to call the desired factoid.
### Special commands
#### /say
If a factoid begins with `/say ` then PBot will not use the `<factoid> is <description>` format when displaying the factoid. Instead, it will simply say only the `<description>`.
## Special commands
### /say
If a factoid begins with `/say` then PBot will not use the `<factoid> is <description>` format when displaying the factoid. Instead, it will simply say only the `<description>`.
<pragma-> !factadd global hi /say Well, hello there, $nick.
<PBot> hi added to the global channel
<prec> PBot, hi
<PBot> Well, hello there, prec.
#### /me
If a factoid begins with `/me ` then PBot will `CTCP ACTION` the factoid.
### /me
If a factoid begins with `/me` then PBot will `CTCP ACTION` the factoid.
<pragma-> !factadd global bounce /me bounces around.
<PBot> bounce added to the global channel
<pragma-> !bounce
* PBot bounces around.
#### /call
If a factoid begins with `/call ` then PBot will call an existing command. This is what [`factalias`](#factalias) does internally.
### /call
If a factoid begins with `/call` then PBot will call an existing command. This is what [`factalias`](#factalias) does internally.
<pragma-> !factadd global boing /call bounce
<PBot> boing added to the global channel
<pragma-> !boing
* PBot bounces around.
#### /msg
If a factoid begins with `/msg <nick> ` then PBot will privately message the factoid text to `<nick>`. Only admins can use this command.
### /msg
If a factoid begins with `/msg <nick>` then PBot will privately message the factoid text to `<nick>`. Only admins can use this command.
### /code
Code Factoids are a special type of factoid whose text is treated as code and executed with a chosen programming language
@ -108,11 +117,43 @@ The `<language>` parameter selects a programming/scripting language or interpret
#### Supported languages
As of this writing, these are the languages and interpreters that PBot supports. It is easy to add additional
languages or interpreters. For example, [take a look at these language/interpreter files.](../modules/compiler_vm/languages)
languages or interpreters.
Name | Description
--- | ---
[bash](../modules/compiler_vm/languages/bash.pm) | Bourne-again Shell scripting language
[bc](../modules/compiler_vm/languages/bc.pm) | An arbitrary precision calculator language
[bf](../modules/compiler_vm/languages/bf.pm) | BrainFuck esoteric language
[c11](../modules/compiler_vm/languages/c11.pm) | C programming language using GCC -std=c11
[c89](../modules/compiler_vm/languages/c89.pm) | C programming language using GCC -std=c89
[c99](../modules/compiler_vm/languages/c99.pm) | C programming language using GCC -std=c99
[clang11](../modules/compiler_vm/languages/clang11.pm) | C programming language using Clang -std=c11
[clang89](../modules/compiler_vm/languages/clang89.pm) | C programming language using Clang -std=c89
[clang99](../modules/compiler_vm/languages/clang99.pm) | C programming language using Clang -std=c99
[clang](../modules/compiler_vm/languages/clang.pm) | Alias for `clang11`
[clangpp](../modules/compiler_vm/languages/clangpp.pm) | C++ programming language using Clang
[clisp](../modules/compiler_vm/languages/clisp.pm) | Common Lisp dialect of the Lisp programming language
[cpp](../modules/compiler_vm/languages/cpp.pm) | C++ using GCC
[freebasic](../modules/compiler_vm/languages/freebasic.pm) | FreeBasic BASIC compiler/interpreter
[go](../modules/compiler_vm/languages/go.pm) | Golang programming language
[haskell](../modules/compiler_vm/languages/haskell.pm) | Haskell programming language
[java](../modules/compiler_vm/languages/java.pm) | Java programming language
[javascript](../modules/compiler_vm/languages/javascript.pm) | JavaScript programming language
[ksh](../modules/compiler_vm/languages/ksh.pm) | Korn shell scripting language
[lua](../modules/compiler_vm/languages/lua.pm) | LUA scripting language
[perl](../modules/compiler_vm/languages/perl.pm) | Perl programming language
[python3](../modules/compiler_vm/languages/python3.pm) | Python3 programming language
[python](../modules/compiler_vm/languages/python.pm) | Python programming language
[qbasic](../modules/compiler_vm/languages/qbasic.pm) | QuickBasic option using FreeBasic
[ruby](../modules/compiler_vm/languages/ruby.pm) | Ruby programming language
[scheme](../modules/compiler_vm/languages/scheme.pm) | Scheme dialect of the Lisp programming language
[sh](../modules/compiler_vm/languages/sh.pm) | Bourne Shell scripting language
[tcl](../modules/compiler_vm/languages/tcl.pm) | TCL scripting language
[zsh](../modules/compiler_vm/languages/zsh.pm) | Z Shell scripting language
#### Special variables
All the variables listed in [Special Variables](#special-variables) are expanded within Code Factoids before
All the variables listed in [Special Variables](#special-variables-1) are expanded within Code Factoids before
the code is executed or interpreted.
[List variables](#list-variables) are also expanded beforehand as well. You can prevent this by using [`factset`](#factset)
@ -231,34 +272,34 @@ to strip the timestamp and the name, leaving only the message. `smr` stands for
<pragma-> !smr derpy3 girls
<PBot> gIrLs ArE dUmB!
### Special variables
## Special variables
You can use the following variables in a factoid or as an argument to one.
#### $nick
### $nick
`$nick` expands to the nick of the caller.
#### $args
### $args
`$args` expands to any text following the keyword. If there is no text then it expands to the nick of the caller.
#### $arg[n]
### $arg[n]
`$arg[n]` expands to the nth argument. Indexing begins from 0 (the first argument is `$arg[0]`). You may use a negative number to count from the end; e.g., `$arg[-2]` means the 2nd argument from the end. Multiple words can be double-quoted to constitute one argument. If the argument does not exist, the variable and the leading space before it will be silently removed.
#### $arg[n:m]
### $arg[n:m]
`$arg[n:m]` expands to a slice of arguments between `n` and `m`. Indexing begins from 0 (the first argument is `$arg[0]`). Not specifying the `m` value means the rest of the arguments; e.g., `$arg[2:]` means the remaining arguments after the first two. Multiple words can be double-quoted to constitute one argument. If the argument does not exist, the variable and the leading space before it will be silently removed.
#### $arglen
### $arglen
`$arglen` expands to the number of arguments provided to a factoid.
#### $channel
### $channel
`$channel` expands to the name of the channel in which the factoid is used.
#### $randomnick
### $randomnick
`$randomnick` expands to a random nick from the channel in which the factoid is used. Filtered to nicks who have spoken in channel in the last two hours.
#### $0
`$0` expands to the original keyword used to invoke a factoid. See also [Overriding $0](#Overriding_$0).
### $0
`$0` expands to the original keyword used to invoke a factoid.
### List variables
## List variables
You may create a factoid containing a list of quoted values. When this factoid is used as a `$variable` by using the `$` character, a random value
will be selected from the list.
@ -292,7 +333,7 @@ Another example, creating the RTFM trigger:
<pragma-> !rtfm mauke
* PBot thwacks mauke with a big red manual.
#### modifiers
### modifiers
Factoid `$variables` can accept trailing modifier keywords prefixed with a colon. These can be chained together to combine their effects.
<pragma-> !echo $colors:uc
@ -308,7 +349,7 @@ Modifier | Description
`:title` | Lowercases the expansion and then uppercases the initial letter of each word
`:<channel>` | Looks for variable in `<channel>` first; use `global` to refer to the global channel
### action_with_args
## action_with_args
You can use the [`factset`](#factset) command to set a special [factoid meta-data](#factoid-metadata-list) key named `action_with_args` to trigger an alternate message if an argument has been supplied.
@ -321,13 +362,13 @@ You can use the [`factset`](#factset) command to set a special [factoid meta-dat
<pragma-> !snack orbitz
* PBot gives orbitz a cookie.
### add_nick
## add_nick
You can use the [`factset`](#factset) command to set a special [factoid meta-data](#factoid-metadata-list) key named `add_nick` to prepend the nick of the caller to the output. This is mostly useful for modules.
Adding a factoid
----------------
### factadd
## factadd
Usage: `factadd [channel] <keyword> <description>`
To add a factoid to the global channel, use `global` as the channel.
@ -343,15 +384,15 @@ To view or trigger a factoid, one merely issues its keyword as a command.
Viewing/triggering another channel's factoid
--------------------------------------------
### fact
## fact
To view or trigger a factoid belonging to a specific channel, use the `fact` command.
Usage: `fact <channel> <keyword> [arguments]`
Deleting a factoid
------------------
### factrem
### forget
## factrem
## forget
To remove a factoid, use the `factrem` or `forget` command.
@ -359,7 +400,7 @@ Usage: `factrem [channel] <keyword>` `forget [channel] <keyword>`
Aliasing a factoid
------------------
### factalias
## factalias
To create an factoid that acts as an alias for a command, use the `factalias` command or set the factoid's `action` meta-data to `/call <command>`.
Usage: `factalias [channel] <keyword> <command>`
@ -384,7 +425,7 @@ Usage: `factalias [channel] <keyword> <command>`
Moving/renaming a factoid
-------------------------
### factmove
## factmove
To rename a factoid or move a factoid to a different channel, use the `factmove` command:
Usage: `factmove <source channel> <source factoid> <target channel/factoid> [target factoid]`
@ -393,7 +434,7 @@ If three arguments are given, the factoid is renamed in the source channel. If
Changing a factoid
------------------
### factchange
## factchange
To change a factoid, use the `factchange` command:
Usage: `factchange [channel] <keyword> s/<pattern>/<change to>/[gi]`
@ -409,30 +450,30 @@ Note that the final argument is a Perl-style substitution regex. See `man perlr
For instance, it is possible to append to a factoid by using: `factchange channel factoid s/$/text to append/`. Likewise, you can prepend to a factoid by using: `factchange channel factoid s/^/text to prepend/`.
### factundo
## factundo
To revert to an older revision, use the `factundo` command. You can repeatedly undo a factoid until there are no more undos remaining.
Usage: `factundo [channel] <keyword>`
### factredo
## factredo
To revert to a newer revision, use the `factredo` command. You can repeatedly redo a factoid until there are no more redos available.
Usage: `factredo [channel] <keyword>`
### factset
## factset
To view or set [factoid meta-data](#factoid-metadata-list), such as owner, rate-limit, etc, use the [`factset`](#factset) command.
Usage: `factset [channel] <factoid> [<key> [value]]`
Omit `<key>` and `<value>` to list all the keys and values for a factoid. Specify `<key>`, but omit `<value>` to see the value for a specific key.
### factunset
## factunset
To unset [factoid meta-data](#factoid-metadata-list), use the `factunset` command.
Usage: `factunset [channel] <factoid> <key>`
#### Factoid Metadata List
## Factoid Metadata List
This is a list of recognized factoid meta-data fields. An admin level of `0` signifies that anybody can set the field.
Name | Admin level | Description
@ -460,7 +501,7 @@ Name | Admin level | Description
Finding a factoid
-----------------
### factfind
## factfind
To search the database for a factoid, use the 'factfind` command. You may optionally specify whether to narrow by channel and/or include factoid owner and/or last referenced by in the search.
If there is only one match for the query, it will display that factoid and its text, otherwise it will list all matching keywords.
@ -474,7 +515,7 @@ If you specify the `-regex` flag, the `text` argument will be treated as a regex
Information about a factoid
---------------------------
### factinfo
## factinfo
To get information about a factoid, such as who submitted it and when, use the `factinfo` command.
Usage: `factinfo [channel] <keyword>`
@ -482,7 +523,7 @@ Usage: `factinfo [channel] <keyword>`
<pragma-> !factinfo ##c NULL
<PBot> NULL: Factoid submitted by Major-Willard for all channels on Sat Jan 1 16:17:42 2005 [5 years and 178 days ago], referenced 39 times (last by pragma- on Sun Jun 27 04:40:32 2010 [5 seconds ago])
### factshow
## factshow
To see the factoid `action` meta-data, use the `factshow` command.
Usage: `factshow [channel] <keyword>`
@ -490,14 +531,14 @@ Usage: `factshow [channel] <keyword>`
<pragma-> !factshow hi
<PBot> hi: /say $greetings, $nick.
### factset
## factset
To view [factoid meta-data](#factoid-metadata-list), such as owner, rate-limit, etc, use the `factset` command.
Usage: `factset [channel] <factoid> [<key> [value]]`
Omit `<key>` and `<value>` to list all the keys and values for a factoid. Specify `<key>`, but omit `<value>` to see the value for a specific key.
### factlog
## factlog
To see a factoid's changelog history, use the `factlog` command.
Usage: `factlog [-h] [-t] [channel] <factoid>`
@ -519,7 +560,7 @@ Usage: `factlog [-h] [-t] [channel] <factoid>`
<pragma-> !factlog hi
<PBot> [3m ago] pragma- created: /say Hi! [5m ago] pragma- deleted [8m ago] pragma- changed to /say Hello there, $nick! [10m ago] pragma- created: /say Hello there!
### count
## count
To see how many factoids and what percentage of the database `<nick>` has submitted, use the `count` command.
Usage: `count <nick>`
@ -533,13 +574,13 @@ Usage: `count <nick>`
<pragma-> !count pragma
<PBot> pragma has submitted 27 factoids out of 233 (11%)
### histogram
## histogram
To see a histogram of the top factoid submitters, use the `histogram` command.
<pragma-> !histogram
<PBot> 268 factoids, top 10 submitters: twkm: 74 (27%) Major-Willard: 64 (23%) pragma-: 40 (14%) prec: 39 (14%) defrost: 14 (5%) PoppaVic: 10 (3%) infobahn: 7 (2%) orbitz: 3 (1%) mauke: 3 (1%) Tom^: 2 (1%)
### top20
## top20
To see the top 20 most popular factoids, use the `top20` command. It can also show you the 50 most recent factoids that were added to a channel.
Usage: `top20 <channel> [<nick> or 'recent']`