caiorss / Org Wiki

#+TITLE: org-wiki #+LANGUAGE: en #+OPTIONS: H:4 #+KEYWORKDS: org-mode, orgmode, emacs, wiki, desktop, wiki, tools, notes, notebook #+STARTUP: contents

#+HTML_HEAD: #+HTML_HEAD: <script src="theme/org-nav-theme.js"></script>

• Org-wiki ** Overview

Org-wiki is a org-mode extension that provides tools to manage and build [[https://en.wikipedia.org/wiki/Personal_wiki][personal wiki]] or desktop wiki where each wiki page is a org-mode file.

It provides a custom protocol wiki:keyword which creates like. When clicked this links creates the wiki file in the wiki directory with name keyword.org.

| Repository | https://github.com/caiorss/org-wiki | | Html documentation | https://caiorss.github.io/org-wiki/ | | | |

Features:

• A wiki system for Emacs.

• Search wiki pages quickly.

• Create new wiki pages fast.

• Command to export all pages to html without block Emacs. M-x =M-x org-wiki/export-html-async=

• Search wiki pages by its content. (grep)

• org-mode protocol to create and open wiki pages.

• org-mode protocol to open attachment/asset files with default system application.

• Automatic download of attachment files with:

  • =M-x org-wiki-asset-download-insert1=
  • =M-x org-wiki-asset-download-insert2=

Org-mode already has many features that makes it suitable to create a desktop wiki and store knowledge like:

• Render Latex formulas.

• Block codes (org-babel).

• Fast navigation and editing

• Support for tables

• Ability to export to html and other formats.

• Links to files, images, system commands and Elisp commands.

Note It is only possible to show the video demonstrations in [[https://caiorss.github.io/org-wiki][html version.]]

Link formats

• =wiki:=

Example:

#+BEGIN_SRC org wiki:Linux or [[wiki:Linux]] or [[wiki:Linux][Linux]]
#+END_SRC

• =wiki-asset-sys:/=

Example:

#+BEGIN_SRC org wiki-asset-sys:Linux;LearnLinux.pdf or [[wiki-asset-sys:Linux;LearnLinux.pdf]] or [[wiki-asset-sys:Linux;LearnLinux.pdf][Book Learn Linux.pdf]] #+END_SRC

It will open the file =~/wiki-directory/Linux/LearnLinux.pdf= with the default system application.

** FAQ

What is a personal wiki/ desktop wiki?

It is a digital notebook or a note taking app integrated with desktop. Some examples are [[http://zim-wiki.org][Zim Wiki]], [[https://en.wikipedia.org/wiki/Microsoft_OneNote][Microsoft OneNote]] and [[https://en.wikipedia.org/wiki/Tomboy_(software)][Tomboy (software)]].

What org-wiki is not

• It is not a server wiki like [[https://en.wikipedia.org/wiki/MediaWiki][Mediawiki]] (Wikipedia Engine) or [[https://www.dokuwiki.org/dokuwiki][Dokuwiki]]. So it has no administrative panel and user account and so on. Despite it not be a server wiki, it can serve org pages (*.org files) exported html with Python3 web server help in read-only mode.

Why org-wiki?

Server wikis are hard to manage and install for a single user and requires installation of a web server like Apache, PHP and a database server like MySql or PostgresSQL.

Desktop wikis like org-wiki, Zim, OneNote and Tomboy are easier to install and manage than server wikis and has less memory requirements.

The problems of many wikis are the lack of a good text editor, extensibility and desktop integration. Org-wiki solves that by putting the Wiki inside the most awesome text editor: Emacs and everything is just one keybinding or one command away. Another advantage is the org-mode format and Emacs integration that provides fast editing, fast refactoring, headline folding, fast table manipulation, export to many formats like html, pdf and so on, Latex equations and literate programming in many languages like C, C++, Python, R and so on.

You can see Org-mode Screencasts and reviews here:

• http://orgmode.org/worg/org-tutorials/org-screencasts/

** Demos

• (1) Browsing Index: M-x org-wiki/index

[[file:images/org-wiki-index.gif][file:images/org-wiki-index.gif]]

• (2) M-x org-wiki/helm - Select a wiki page by name.

[[file:images/org-wiki-helm.gif][file:images/org-wiki-helm.gif]]

• (3) M-x org-wiki/insert Insert a link to wiki page at cursor position.

[[file:images/org-wiki-insert.gif][file:images/org-wiki-insert.gif]]

• (4) - M-x org-wiki/asset-insert Insert a link to a asset file that when clicked opens it with default system application.

See video: [[http://i.imgur.com/KqqC7sY.mp4][M-x org-wiki/asset-insert]]

#+BEGIN_HTML #+END_HTML

• (5) - Org-wiki exported to HTML

You can view a sample wiki exported to html here:

• [[https://caiorss.github.io/org-wiki/wiki/index.html][Sample org-wiki exported to html]]

• This sample wiki is available at [[https://github.com/caiorss/org-wiki/tree/master/sandbox/wiki][sandbox/wiki]]

** Screenshots

• 1. Command =M-x org-wiki-index= Open the wiki index page (file index.org)

[[file:images/org-wiki-index.png][file:images/org-wiki-index.png]]

• 2. Command =M-x org-wiki-helm= Open a helm menu to select the wiki page to be opened.

[[file:images/wiki-helm-command.png][file:images/wiki-helm-command.png]]

• 3. =M-x org-wiki- [tab]= provides easy completion and discoverability to org-wiki commands.

[[file:images/autocompletion.png][file:images/autocompletion.png]]

• 4. =M-x org-wiki-dired= Open the org-wiki directory showing only the wiki pages (*.org files).

[[file:images/wiki-dired.png][file:images/wiki-dired.png]]

• 5. =M-x org-wiki-dired-all= Open the org-wiki directory showing all files.

[[file:images/wiki-dired-all.png][file:images/wiki-dired-all.png]]

• 6. =M-x org-wiki-search-pattern= Search for all wiki page that contains a pattern. (string or regex pattern).

Example: The command =M-x org-wiki/search-patern - System.Windows= will search all files that contains "System.Windows string".

[[file:images/wiki-search-pattern.png][file:images/wiki-search-pattern.png]] ** Workflow *** Switching wiki

Now org wiki supports multiple wikis or root directories, but only one wiki can be used at a time. So, to switch wiki type:

• =M-x org-wiki-switch-root=

*** Create a page - way 1

To create a page do:

• 1. M-x org-wiki-index - It goes to the Org-wiki index page (index.org).
• 2. Then run =M-x org-wiki-insert-new= and a page name like 'CNC - Computer Numerical Control'

It will insert a hyperlink at point like:

#+BEGIN_SRC org [[wiki:CNC%20-%20Computer%20Numerical%20Control][CNC - Computer Numerical Control]] #+END_SRC

• 3. Then click at the link or enter C-x C-o at the link to open it.

*** Create a page - way 2

Run =M-x org-wiki-new= and enter the page name, for instance 'Unix System Calls', it will create the file 'Unix System Calls.org' in the root directory and open it for editing.

The advantage of creating a page using 'way 1' is that it inserts a link to the new created page before opening it, therefore making easier to categorize and navigate the pages.

*** Browse a page

The navigation can be done by running

• =M-x org-wiki-index= It will open the index page which contains hyperlinks to other wiki pages.

or

• =M-x org-wiki-helm= that will show a helm combobox menu where the user view all pages and search a page by typing its name.

or

• =M-x org-wiki-helm-frame= to open a page in another frame (Emacs terminology for GUI window).

** Install *** Installation Methods
**** Method 1 - Bootstrap installer

Evaluate this code in the scratch buffer that will install all dependencies and this package. The scratch buffer can be evaluated with =M-x eval-buffer=.

#+BEGIN_SRC elisp (let ((url "https://raw.githubusercontent.com/caiorss/org-wiki/master/org-wiki.el"))
(with-current-buffer (url-retrieve-synchronously url) (goto-char (point-min)) (re-search-forward "^$") (delete-region (point) (point-min)) (kill-whole-line) (package-install-from-buffer))) #+END_SRC

**** Method 2 - El-get

Just copy this piece of code to scratch buffer and eveluate the buffer with =M-x eval-buffer=. It is assumed that [[https://github.com/dimitri/el-get][el-get]] is already installed.

#+BEGIN_SRC elisp (el-get-bundle org-wiki :url "https://raw.githubusercontent.com/caiorss/org-wiki/master/org-wiki.el" :description "Emacs' desktop wiki built with org-mode" :features org-wiki ) #+END_SRC

**** Method 3 - Manual installation

Copy the package to the desired location.

#+BEGIN_SRC sh mkdir -p ~/.emacs.d/packages/

cd ~/.emacs.d/packages/

git clone https://github.com/caiorss/org-wiki

mkdir -p ~/org/wiki # Make wiki location. #+END_SRC *** Configuration **** Basic settings

Make org-wiki directory

• =M-x make-directory ~/org-wiki=

Add to init file ~/.emacs.d/init.el or ~/.emacs

#+BEGIN_SRC elisp (require 'org-wiki) #+END_SRC

Org-wiki can configured programatically by setting the org-wiki custom varibles or with =M-x customize-group org-wiki=.

**** Paths to Wiki locations

This new version supports multiples org-wiki directories or multiple wikis in different directories, but only one wiki can be used at a time. The current wiki directory can be selected by using te command =M-x org-wiki-switch-root=.

Paths where all org-wiki pages (*.org files) are stored.

#+BEGIN_SRC elisp ;; ;; (setq org-wiki-location "~/org/wiki")

(setq org-wiki-location-list '( "/Documents/wiki" ;; First wiki (root directory) is the default. "/Documents/wiki2 " "~/Documents/wiki3" ))

;; Initialize first org-wiki-directory or default org-wiki (setq org-wiki-location (car org-wiki-location-list)) #+END_SRC

The default value of this variable is

#+BEGIN_SRC elisp '("~/org/wiki") #+END_SRC

In Windows it can be:

• Note: backward slash in path , must be escaped as \

#+BEGIN_SRC elisp ;; (setq org-wiki-location "e:/projects/org-wiki-test.emacs")

(setq org-wiki-location-list '( "C:\Users\john\Documents\wiki-main" ;; First wiki is the default. "F:/storage/wiki2" "G:\Documents\wiki3" )) #+END_SRC

**** Open org-wiki pages in read-only

If the custom variable =org-wiki-default-read-only= is set to true (t) org-wiki pages are opened in read-only mode. The default value of this variable is nil (false). It is useful to avoid unintended and accidental changings an org-wiki page.

The read-only mode can be toggled with =M-x toggle-read-only= or C-x C-q.

• Open org-wiki pages in read-only mode.

#+BEGIN_SRC elisp (setq org-wiki-default-read-only t)
#+END_SRC

• Open org-wiki pages in non read-only mode.

#+BEGIN_SRC elisp (setq org-wiki-default-read-only nil) ;; Default value #+END_SRC

**** Close all wiki pages when switching wiki

If the custom variable =org-wiki-close-root-switch= (default value true, t) is set to true, it will close all org-wiki pages of the current wiki (root path) before switching to another org-wiki location.

Enable:

#+BEGIN_SRC elisp (setq org-wiki-close-root-switch t) #+END_SRC

Disable

#+BEGIN_SRC elisp (setq org-wiki-close-root-switch nil) #+END_SRC

**** Server settings

Org-wiki can serve the pages exported to html with python help.

The variable org-wiki-server-port (default value 8000) sets the default port that Python web server will listen to.

It can be set with:

#+BEGIN_SRC elisp (setq org-wiki-server-port "8000") ;; 8000 - default value #+END_SRC

The variable org-wiki-server-host (default value 0.0.0.0 - all hosts) sets the host that the Python server will listen.

It can be set with:

#+BEGIN_SRC elisp (setq org-wiki-server-host "0.0.0.0") ;; Listen all hosts (default value) (setq org-wiki-server-host "127.0.0.1") ;; Listen only localhost #+END_SRC

**** Export Settings

In order to the html export work the path to emacs executable directory must be in the $PATH variable. In some OS like Windows where this path is not in $PATH variable it is necessary to set the variable =org-wiki-emacs-path= like:

#+BEGIN_SRC elisp (setq org-wiki-emacs-path "c:/Users/arch/opt/emacs/bin/runemacs.exe") #+END_SRC

Optional: This package provides the command =M-x org-wiki-make-menu= that installs a menu on the menu bar.

The menu can be installed permanently by adding the init file:

#+BEGIN_SRC elisp (org-wiki-make-menu) #+END_SRC

**** Template

The user can set the org-wiki template used to create org-wiki files by changing the custom variable with

• =M-x customize-variable org-wiki-template=

The default template is:

#+BEGIN_SRC org ,#+TITLE: %n ,#+DESCRIPTION: ,#+KEYWORDS: ,#+STARTUP: content

• [[wiki:index][Index]]

• Related:

,* %n #+END_SRC

where:

• %n is replaced by the page name
• %d is replaced by current date in the format year-month-day

This variable can also be set programatically with:

#+BEGIN_SRC elisp (setq org-wiki-template (string-trim " ,#+TITLE: %n ,#+DESCRIPTION: ,#+KEYWORDS: ,#+STARTUP: content ,#+DATE: %d

• [[wiki:index][Index]]

• Related:

,* %n ")) #+END_SRC

*** Start the wiki

• M-x org-wiki-index to go to index.org

• New pages can be created with =M-x org-wiki-link= that asks for wiki word and inserts at point a hyperlink to the wiki page.

• References to existing pages can be inserted with =M-x org-wiki-insert=.

** Command Summary

| M-x Command | Description | |---------------------------------+---------------------------------------------------------------------------------------------------| | Help | | |---------------------------------+---------------------------------------------------------------------------------------------------| | | | | org-wiki-help | Show all org-wiki commands. | | org-wiki-website | Open org-wiki default website. | | | | | Navigation | | |---------------------------------+---------------------------------------------------------------------------------------------------| | org-wiki-switch-root | Switch between multiple org wikis listed in the variable 'org-wiki-location-list' | | org-wiki-index | Go to the index page or index.org | | org-wiki-index-frame | Open org-wiki index page in a new frame. | | org-wiki-switch | Switch between org-wiki buffers or already opened pages | | | | | org-wiki-helm | Open a org-wiki page | | org-wiki-helm-frame | Open a org-wiki page in a new frame | | org-wiki-helm-read-only | Open a org-wiki page in read-only mode | | | | | | | | Close Command | | |---------------------------------+---------------------------------------------------------------------------------------------------| | org-wiki-close | Close all buffers with files in org-wiki-location directory and save the editable buffers. | | org-wiki-close-images | Close all org-wiki image buffers. | | | | | Insert Commands | | |---------------------------------+---------------------------------------------------------------------------------------------------| | org-wiki-insert-new | Insert a link at point to a new org-wiki page. Click or follow the link to edit the new page. | | org-wiki-insert-link | Insert a link at point to an existing org-wiki page. | | org-wiki-header | Insert at the top of an org-wiki buffer an org-mode header template. | | | | | org-wiki-asset-insert-file | Insert link to asset/attachment file that can be opened with Emacs at point such as source codes. | | | | | org-wiki-asset-insert-image | Insert link to image file at point. | | | | | org-wiki-asset-insert | Insert a link to asset/attachment file at point. When the user clicks, | | | it opens with default system application. It is useful to open pdfs, | | | spreadsheets and so on. | | | | | org-wiki-asset-download-insert1 | Download a file and insert a link to it at point. Similar to org-wiki-asset-insert | | | | | org-wiki-asset-download-insert2 | Download a file and insert a link to it at point. Similar to org-wiki-asset-insert-file | | | | | org-wiki-insert-symbol | Insert Greek letters, math and physics symbols such as α, γ, Δ, Σ, ∞, ℉ | | org-wiki-insert-block | Insert quote block, source code code block, latex equation block and so on. | | org-wiki-insert-latex | Insert latex templates, formulas, Greek letters and math symbols. | | | | | Directory | | |---------------------------------+---------------------------------------------------------------------------------------------------| | org-wiki-dired | Open org-wiki-location or org-wiki storage directory in Emacs showing only *.org files. | | org-wiki-open | Open org-wiki-location with default system file manager. | | org-wiki-dired-all | OPen org-wiki-location showing all files. | | | | | Alias Command | | |---------------------------------+---------------------------------------------------------------------------------------------------| | org-wiki-nav | Alias to helm-org-in-buffer-headings | | org-wiki-occur | Alias to helm-occur | | org-wiki-toggle-images | Toggle images display. Alias to org-toggle-inline-images | | org-wiki-toggle-link | Toggle link display. Alias to M-x org-toggle-link-display. | | org-wiki-latex | Display latex formulas. Alias to org-preview-latex-fragment. Requires latex installed. | | | | | | | | Backup Command | | | org-wiki-backup-make | Create new zip file backup of all org-wiki files. | | org-wiki-backup-dir | Open backup directory. | | | | | Misc | | |---------------------------------+---------------------------------------------------------------------------------------------------| | org-wiki-panel | A panel like magit-status panel. | | org-wiki-server-toggle | Toggle Python web server. | | org-wiki-make-menu | Install an org-wiki menu. | | | | | | |

Not complete yet.

** Commands *** Help

• =M-x org-wiki-help= Show all org-wiki commands and its description.

• =M-x org-wiki-website= Open org-wiki project website in the default web browser.

*** Open the index page **** M-x org-wiki-index

• =M-x org-wiki-index= - Open the index page. It opens the file index.org that is the first default page of the wiki. If the file doesn't exist it will be created.

**** M-x org-wiki-index-frame

• =M-x org-wiki-index-frame= - Open the wiki index page in a new frame. *** Pages **** M-x org-wiki-helm

• =M-x org-wiki-helm= - Open a helm menu to switch or open a wiki page.

**** M-x org-wiki-switch

• =M-x org-wiki-switch= - Switch between org-wiki buffers (*.org files in org-wiki-location directory) already opened.

**** M-x org-wiki-helm-frame

• =M-x org-wiki-helm-frame= - Open a wiki page in a new frame.

**** M-x org-wiki-helm-read-only

• =M-x org-wiki-helm-read-only= - Open a wiki page in read-only mode.

**** M-x org-wiki-make-page

• =M-x org-wiki-make-page= - Creates a new wiki page asking the user for the page name.

**** M-x org-wiki-close

• =M-x org-wiki-close= - Close all wiki pages, kill all *.or buffers belonging to wiki directory.

**** M-x org-wiki-close-image

• Close all org-wiki image/picture buffers.

*** Insert Hyperlink to wiki pages or asset files **** M-x org-wiki-insert-link

• =M-x org-wiki-insert-link= - Asks the user for the wiki page name and inserts the hyperlink at point. It is useful to create new pages fast without write the full syntax like [[wiki:page title] [page title]

Example:

• 1. User enter M-x org-wiki-link and enter "The Art of Unix Programming"
• 2. It will insert at point (current cursor position):

#+BEGIN_SRC txt [[wiki:The%20Art%20of%20Unix%20Programming][The Art of Unix Programming]] #+END_SRC

And will create the hyperlink to this page.

**** M-x org-wiki-header

• =M-x org-wiki-header. It inserts at top of the wiki page the template:

#+BEGIN_SRC txt #+TITLE: #+DESCRIPTION: #+KEYWORDS: #+STARTUP: overview

Related:

[[wiki:index][Index]]\n\n #+END_SRC

**** M-x org-wiki-asset-insert

• =M-x org-wiki-asset-insert= - Insert a asset file at point providing a heml menu to select the file. It inserts a link of format wiki-asset-sys:CurrentPage;AssetFilename.pdf. *** Asset files / Attachments **** Commands to open page's asset directory ***** M-x org-wiki-assets-dired

Open page's asset directory in Emacs dired mode. ***** M-x org-wiki-assets-open

• =M-x org-wiki-assets-open= - Open asset directory of current page with system's default file manager.

***** M-x org-wiki-assets-helm

• =M-x org-wiki-assets-helm= - Select a wiki page and open its assets directory.

**** Commands to insert hyperlink to files ***** M-x org-wiki-asset-create

Prompts the user for a file name that doesn't exist yet and insert it at point. Unlike the commands org-wiki-asset-insert or org-wiki-asset-insert-file this command asks the user for a file that doesn't exist yet and inserts a hyperlink to it at point.

Example: If the user enter this command and he is in the page Linux and types scriptDemoQT.py it will insert a link at point like this file:Linux/scriptDemoQT.py that doesn't exist yet. The user can then open the link and edit the file.

***** M-x org-wiki-asset-insert

• =M-x org-wiki-asset-insert= - Insert a link to asset file of current page at current cursor position. This link when clicked opens with default system application.

Example: Inserts a a link such as the code below. User is in the page Linux and with this command selects in the Helm menu the file Manual.pdf.

#+BEGIN_SRC [[wiki-asset-sys:Linux;Manual.pdf][Manual.pdf]] #+END_SRC

***** M-x org-wiki-asset-insert-file

• =M-x org-wiki-asset-insert-file= - Insert a link to an asset file that can be opened with Emacs at cursor position. This is an ordinary org-mode link.

Use this file for files supposed to be opened with Emacs such as Python, bash scripts or source codes.

Note: Don't use this command to insert images, use =M-x org-wiki-insert-image= instead of this.

Example: If the current page is Python and user selects the file pyscript.py it will insert a hyperlink at point as this.

#+BEGIN_SRC org [[file:python/pyscript.py][pyscript.py]] #+END_SRC

It will be rendenred as this:

• [[file:python/pyscript.py][pyscript.py]]

***** M-x org-wiki-asset-insert-image

• =M-x org-wiki-asset-insert-file= - Insert a link to an image file at point.

Example: If the current page is Python and the user selects the file QTScreenshot.png it will insert a hyperlink to this file that will be rendered as an image when current page is exported to html.

#+BEGIN_SRC org [[file:python/QTScreenshot.png][file:python/QTScreenshot.png]] #+END_SRC

***** M-x org-wiki-asset-insert-block

Insert code block with contents of some asset file as an org-mode block:

Example:

If the current page is 'Smalltalk programming' it the user select the file 'extendingClasses-number1.gst' it will insert a code block with the file contents and a hyperlink to it at point.

#+BEGIN_SRC org

• File: [[file:Smalltalk%20programming/extendingClasses-number1.gst][file:Smalltalk programming/extendingClasses-number1.gst]]

,#+BEGIN_SRC text Number extend [ inv [ 1.0 / ^self ]

        neg [ - ^self
        ] 
]

,#+END_SRC #+END_SRC

It would insert a content like this:

• File: [[file:Smalltalk%20programming/extendingClasses-number1.gst][file:Smalltalk programming/extendingClasses-number1.gst]]

#+BEGIN_SRC text Number extend [ inv [ 1.0 / ^self ]

      neg [ - ^self
      ] 

] #+END_SRC

**** Commands to open files directly ***** M-x org-wiki-asset-find-file

It will open a helm menu containing the assets files of current page. It will open the selected file with Emacs.

Example: If the current page is 'Smalltalk programming' and the user select the file 'extendingClasses-number1.gst' it will open the file below with Emacs.

• Smalltalk programming/'extendingClasses-number1.gst

***** M-x org-wiki-asset-find-sys

Open a menu to select an asset file of current page and open it with system's app.

Example: If the current page is 'Smalltalk programming' and the user select the file 'numerical-methods-in-smalltalk.pdf' it will be opened with the default system's application like Foxit PDF or Okular reader.

**** Commands to Download Files ***** M-x org-wiki-asset-download-insert1

• =M-x org-wiki-asset-download-insert1= - Ask the user the url to download a file suggesting the url stored in the clipboard and then asks the file name. After download it inserts a hyperlink at point to open the file with systems' default application.

Example:

1. User is in the page Linux that corresponds to the file /Linux.org

2. User copy the url https://inst.eecs.berkeley.edu/~cs61b/fa13/ta-materials/unix-concise-ref.pdf

3. User enter M-x org-wiki-asset-download-insert1

   1. Confirm the first prompt asking for the url. The suggested url is the copied url.
   2. Confirm the second prompt asking the file name. The suggested name is unix-concise-ref.pdf

4. It will insert at current point the hyperlink bellow. That points to the file /Linux/unix-concise-ref.pdf.

#+BEGIN_SRC [[wiki-asset-sys:Linux;unix-concise-ref.pdf][unix-concise-ref.pdf]] #+END_SRC

Note: This command is synchronous and it can hang Emacs, therefore downloading heavy files can freeze Emacs. If it happesn type C-g to cancel the current download.

***** M-x org-wiki-asset-download-insert2

• =M-x org-wiki-asset-download-insert2= - Similar to =M-x org-wiki-asset-download-insert1=, however it inserts a hyperlink of type file:/.

Example:

1. User is in the page Linux and copies the url: http://i1-linux.softpedia-static.com/screenshots/htop_1.jpg

2. User enter the command M-x org-wiki-asset-download-insert1 and answers all prompts.

3. It will insert the hyperlink bellow at point.

#+BEGIN_SRC file:Linux/htop_1.jpg #+END_SRC *** Open wiki directory **** M-x org-wiki-dired

• =M-x org-wiki-dired= - Open the wiki directory in Emacs dired-mode showing only *.org files.

**** M-x org-wiki-dired-all

• =M-x org-wiki-dired-all= - Open the wiki directory in Emacs showing all files. *** Export all pages to html **** M-x org-wiki-export-html

• =M-x org-wiki-export-html= - Exports all wiki pages to html asynchronously, it means withoyt block Emacs by starting a new Emacs process in background.

**** M-x org-wiki-index-html

• =M-x org-wiki-index-html= - Open the index page exported to html in the web browser.
  *** Search

• =M-x org-wiki-search= - Search all wiki page that contains a pattern. (string or regex pattern).

• =M-x org-wiki-find-dired= - Show all files in all org-wiki subdirectories.

#+CAPTION: Screenshot of command M-x org-wiki-find-dired [[file:images/org-wiki-find-dired.png][file:images/org-wiki-find-dired.png]]

• =M-x org-wiki-desc= - Show all org-wiki pages with description.

#+CAPTION: Screenshot of command M-x org-wiki-desc [[file:images/org-wiki-desc.png][file:images/org-wiki-desc.png]]

• =M-x org-wiki-keywords= - Display all org-wiki keywords and related org-wiki page files.

#+CAPTION: Screenshot of command M-x org-wiki-keywords [[file:images/org-wiki-keywords.png][file:images/org-wiki-keywords.png]] *** Copy Commands

• =M-x org-wiki-copy-location= - Copy org-wiki location path to clipboard.

• =M-x org-wiki-copy-index-html= - Copy path of index page exported to html to clipboard. Example: //index.html

• =M-x org-wiki-copy-asset-path= - Copy current page asset/attachment directory path to clipboard. Example: If the current page is Linux, it will copy the '//Linux/' to clipboard.

*** M-x org-wiki-backup-make

To create a backup run =M-x org-wiki-backup-make= it will create a file =org-wiki---.zip=, such as =org-wiki-2017-08-10.zip=, in the directory org-wiki-backup-location.

*** M-x org-wiki-backup-dir

To open the backup directory run M-x =org-wiki-backup-dir.= *** Utilities **** Insert greek letters, math, physics and currency symbols

The command =M-x org-wiki-insert-symbol= allows inserting Greek letters, math and physics symbols by providing a helm menu where the user can select or type the name of the symbol to insert it at current point. It can be used to quickly type equations and formulas and can be pasted in email, forums, source code and etc.

[[file:images/org-wiki-insert-symbol.png][file:images/org-wiki-insert-symbol.png]]

Examples of symbols of provided:

• α (alpha), β (beta), Σ (upper case sigma), σ (sigma)

• π = 3.1415 -> Circle Area = π.r^2

• ∂f/∂x + ∂f/∂y + ∂f/∂z = 0

• ∛27 = 3.0, √100 = 10.0

• 200.00 £ GBP, 3000.00 ¥ (Yuan, aka Reminbi)

• Fractions ¼, ⅓, ⅑

**** Insert org-mode code blocks, tables, quotes and etc.

This command makes easier to insert common org-mode code templates for code blocks, quote blocks, latex equations, table, example blocks and so on.

• =$ M-x org-wiki-insert-block=

[[file:images/org-wiki-insert-block.png][file:images/org-wiki-insert-block.png]]

Example:

If the user select the template equation it will insert at current point a block for latex equations:

#+BEGIN_SRC org \begin{equation} \end{equation} #+END_SRC

If the user select the template table, it will insert a table with 2 rows and 3 columns.

#+BEGIN_SRC org | | | | |---+---+---| | | | | | | | |

#+END_SRC

If the user select the template Python code block, it will insert:

#+BEGIN_SRC org ,#+BEGIN_SRC python

,#+END_SRC #+END_SRC

**** Insert math formula, latex template, equations, greek letters and etc.

The command =M-x org-wiki-insert-latex= allows writing Latex formulas, Greek letters and math symbolls quickly. It provides a helm menu where the user can type, search and insert Latex formulas at point.

Example:

[[file:images/org-wiki-insert-latex1.png][file:images/org-wiki-insert-latex1.png]]

[[file:images/org-wiki-insert-latex2.png][file:images/org-wiki-insert-latex2.png]]

**** Web Server

• =M-x org-wiki-server-toggle= Start/stop static http server at org-wiki directory.

This command actually runs =python -m http.server --bind = at the org-wiki directory. So it requires Python installed and available in the $PATH variable.

Default value:

• host: 0.0.0.0
• port: 8000

To see your current local IP address type =M-x ifconfig=. You can access the static web site by entering the URL:

• http://:8000

• For instance: http://192.168.1.10:8000. **** Panel - org-wiki-panel

• =M-x org-wiki-panel= - This command provides a command panel that can execute actions just typing few keys like magit or dired buffer.

[[file:images/7d1dba05-89ff-4f0f-9406-087e65a304e7.png][file:images/7d1dba05-89ff-4f0f-9406-087e65a304e7.png]]

**** Menu

• =M-x org-wiki-make-menu= Shows a menu with org-wiki functions and command reminders.

[[file:images/org-wiki-menu1.png][file:images/org-wiki-menu1.png]]

[[file:images/org-wiki-menu2.png][file:images/org-wiki-menu2.png]] **** Backup Commands ***** Backup Settings

Org-wiki can create backups of org-wiki snapshots stored in zip files that can be useful to avoid losses or revert to a previous state.

Set the org-wiki-backup directory. The variable org-wiki-backup-location is initially set to nil.

If the backup directory doesn't exist yet, it is created whenever the user runs any backup command.

Note: It is assumed that the =$ zip= command line application is the $PATH variable.

#+BEGIN_SRC elisp (setq org-wiki-backup-location "~/Documents/org-wiki-backup") #+END_SRC **** Paste Image ***** Overview

This command requires the utility [[https://github.com/caiorss/clip.jar][clip.jar]] and Java runtime to be available at the $PATH variable.

The custom variable =org-wiki-clip-jar-path= holds the path to clip.jar utility has the default value: =~/bin/Clip.jar=.

If you wish to install in Clip.jar in a different path set the variable org-wiki-clip-jar-path like this in the init file:

#+BEGIN_SRC elisp (setq org-wiki-clip-jar-path "~/bin/opt/Clip.jar") #+END_SRC

You can download a binary release with:

#+BEGIN_SRC mkdir ~/bin && cd ~/bin curl -O -L https://github.com/caiorss/clip.jar/blob/build/Clip.jar #+END_SRC

***** M-x org-wiki-paste-image

• =M-x org-wiki-paste-image= Ask the user for the image file name and writes the image from clipboard to the file.

Example:

• User copies an image with mouse right click to clipboard.

• User type the command M-x org-wiki-paste-image and choses the name Unix.png and he is on the page Linux (Linux.org). It will write the image to the file ./Linux/Unix.png and will insert a this block at current cursor position:

#+BEGIN_SRC #+CAPTION: file:Linux/Unix.png #+END_SRC

***** M-x org-wiki-paste-image-uuid

• =M-x org-wiki-paste-image-uuid= Paste an image from clipboard with automatically generated name (uuid).

Example:

• User copies an image from clipboard and type the command =M-x org-wiki-paste-image-uuid=. It will insert at point this block containing a hyperlink to the image like:

#+BEGIN_SRC #+CAPTION: file:Linux/fba53c12-3f23-4728-9f52-a26a3d285d7c.png #+END_SRC
*** Alias Commands

• =M-x org-wiki-nav= - Navigate through org-mode headings. Alias to helm-org-in-buffer-headings.

• =M-x org-wiki-occur= - Alias to helm-occur.

• =M-x org-wiki-toggle-images= - Toggle images. Alias to M-x org-toggle-inline-images.

• =M-x org-wiki-toggle-link= - Toggle link display. Alias to M-x org-toggle-link-display.

• =M-x org-wiki-latex= - Display latex formulas. Alias to M-x org-preview-latex-fragment. It requires latex installed.

** Tips and tricks *** Shortcuts

You might want shortcuts for frequent commands:

• Open a wiki page quickly. =M-x w-h=

#+BEGIN_SRC elisp (defalias 'w-h #'org-wiki-helm) #+END_SRC

• Switch between org-wiki buffers, wiki pages already opened.

#+BEGIN_SRC elisp (defalias 'w-s #'org-wiki-switch) #+END_SRC

• Open a wiki page in a new frame quickly.

#+BEGIN_SRC elisp (defalias 'w-hf #'org-wiki-helm-frame) #+END_SRC

• Switch to wiki page in read-only mode.

#+BEGIN_SRC elisp (defalias 'w-hr #'org-wiki-helm-read-only) #+END_SRC

• Go to the index page

#+BEGIN_SRC elisp (defalias 'w-i #'org-wiki-index) #+END_SRC

• Insert a link to a wiki page at point. It provides helm completion. =M-x w-in=

#+BEGIN_SRC elisp (defalias 'w-in #'org-wiki-insert) #+END_SRC

• Open the current wiki page assets directory: =M-x w-ad=

#+BEGIN_SRC elisp (defalias 'w-ad #'org-wiki-asset-dired) #+END_SRC

• Export current wiki page to html or any org-mode file. =M-x og2h=

#+BEGIN_SRC elisp (defalias 'og2h #'org-html-export-to-html) #+END_SRC

• Close all wiki pages

#+BEGIN_SRC elisp (defalias 'w-close #'org-wiki-close) #+END_SRC

*** Screenshot tools

Linux

• [[http://shutter-project.org/][Shutter - Feature-rich Screenshot Tool]]

• [[https://www.youtube.com/watch?v=Z7gci0qKCPo][Shutter - Advanced screenshot tool for Ubuntu ! - YouTube]]

Windows

• [[http://www.bleepingcomputer.com/tutorials/how-to-use-the-windows-snipping-tool/][How to use the Windows Snipping Tool]]

*** Bookmarklets

Bookmarklets are small pieces of Javascript used for browser automation and as an ad-hoc browsers extensions, encoded as hyperlinks that can be stored in the web browser's bookmark toolbar.

If you don't kwnow what is a bookmarklet see:

• [[https://www.youtube.com/watch?v=K_A3Y3eqnzE][Creating a Simple Bookmarklet - YouTube]]

Note: The hyperlink of bookmarklet is only visible on the [[https://caiorss.github.io/org-wiki][html documentation.]]

This bookmarklet opens a prompt and creates an org-mode hyperlink code for the current web page.

• To test the bookmarklet just click on it and copy the generated hyperlink.

• To install the bookmarklet drag and drop the hyperlink to browser bookmark toolbar.

Bookmarklet:

#+BEGIN_HTML Org-mode Url #+END_HTML

Javascript code:

#+BEGIN_SRC js var md = "[[" + document.URL + "][" + document.title + "]]" ; prompt("org-mode :", md); #+END_SRC

Compressed JavaScript code:

#+BEGIN_SRC js javascript:(function(){var md = "[[" + document.URL + "][" + document.title + "]]" ;prompt("org-mode :", md);})() #+END_SRC

More bookmarklets and cheat sheet available at:

• https://github.com/caiorss/bookmarklet-maker

and

• https://caiorss.github.io/bookmarklet-maker/

*** Equation Rendering in Web browsers

• TL;DR
  • Formulas are displayed faster in Firefox.
  • Mathml is the best Mathjax formula rendering.

[[https://www.mathjax.org/][MathJax]] Latex rendering is slow in Chrome browser and in its open-source relative Chromium browser. An alternative way to render formulas faster is set MathJax to use [[https://en.wikipedia.org/wiki/MathML][mathml]] rendering, but it is not well supported by all browsers such as Chrome e Internet Explorer. Google has also dropped mathml supoort in new versions of the browser.

So, until now, the best browser for fast displaying formulas and equations is Firefox.

Documentation related to Formulas and Latex backend:

• [[https://www.gnu.org/software/emacs/manual/html_node/org/Math-formatting-in-HTML-export.html][Math formatting in HTML export - The Org Manual]]

Online Equation Editors

• http://www.codecogs.com/eqneditor

• https://www.latex4technics.com/

• https://www.mathcha.io/

See also:

• CNET - [[https://www.cnet.com/news/google-subtracts-mathml-from-chrome-and-anger-multiplies/][Google subtracts MathML from Chrome, and anger multiplies]]

*** Use the best tool of the job **** Store, organize, and index documents, citations and etc.

Those who need to store and index a large amount of any type of files and documents will be better served with Zotero.

• https://www.zotero.org/

**** Write very formal thesis, paper, books, manuals and etc ...

For this case one of the best tool is the open source software Lyx that allows creating latex documents in a graphical way, in a similar fashion to Microsoft Word and other word processors. It also has an equation editor.

• https://www.lyx.org/

*** Modify it

You can change the commands or explore it using the command. =M-x find-function = to open the file at the point where the function is defined and edit the file org-wiki.el.

Example:

• M-x find-function =org-wiki-helm=

• M-x find-library org-wiki

** TODOLIST

• [x] - Add command to copy and paste images from clipboard.
• [] - Add this package to some Emacs repository.
• [x] - Add a runnable test.
• [x] - Add org-wiki example pages and generated html files.
• [] - Update gifs