WikiLink - The Mediawiki Interface

WikiLink is actually two separate things; firstly, a java class for interfacing with a mediawiki server, and secondly, a Mathematica package providing a wrapper around this. This page documents the Mathematica package, while the java class, and its addition functionality, will be documented elsewhere.

WikiLink is available as a standalone package, suitable for use with any Mediawiki installation, and is included in the KnotTheory` package.

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Importing the package in Mathematica

If you're not using KnotTheory`, first, you'll need to set some paths, so WikiLink` can find the java files it needs. You need to add the "mathematica/" subdirectory of the WikiLink distribution to the Mathematica $Path.

In[1]:=

WikiLinkPath = "/path/to/WikiLink/mathematica/";

In[2]:=

AppendTo[$Path, WikiLinkPath];

In[3]:=

<<WikiLink`

If you've already loaded KnotTheory` (e.g., with the statement <<KnotTheory`), you can simply begin at this point.

We then try to connect to the wiki. Executing this line will prompt you for a username and password.

In[6]:=

CreateWikiConnection[ "http://katlas.math.toronto.edu/w/index.php", InputString["Enter Your Username:"], InputString["Enter Your Password:"] ]

The function WikiUserName[] checks that we're logged in

In[4]:= ?WikiUserName WikiUserName[] returns either the name of the user you are logged in as, your IP address if you're not logged in, or $Failed if something more complicated has happened!

In[5]:=	WikiUserName[]
Out[5]=	ScottManualRobot

Usage

WikiLink` provides functions for checking your login status, getting and setting pages, as well as transparently extending some of Mathematica's string manipulation functions to wiki pages.

In[6]:= ?WikiUserName WikiUserName[] returns either the name of the user you are logged in as, your IP address if you're not logged in, or $Failed if something more complicated has happened!

In[7]:= ?WikiGetPageText WikiGetPageText[pagename] returns the raw text of the specified page.

In[8]:= ?WikiSetPageText WikiSetPageText[pagename, text] overwrites the contents of the specificied page with the given text. WikiSetPageText[pagename, text, summary] overwrites the contents of the specificied page with the given text and notes summary in the change log.

In[9]:= ?WikiSetPageTexts WikiSetPageText[{{pagename1, text1},{pagename2,text2},...}] efficiently sets multiple pages, by first checking which texts are already up to date.

In[10]:= ?WikiUploadFile WikiUploadFile[name, description] uploads the specified file to the wiki.

Thus for example after

In[11]:=	WikiSetPageText["Sandbox", "A robotic edit, at 19:39, 31-August-2005."]
Out[11]=	True

we get

In[12]:=	WikiGetPageText["Sandbox"]
Out[12]=	A robotic edit, at 19:39, 31-August-2005.

The function WikiSetPageTexts is most useful for batch uploads, as it does considerably more error checking, and filters out edits which won't change the page text. It takes as argument a list of {"title", "text"} pairs, and returns a list of those pairs which failed.

In[13]:=	WikiSetPageTexts[{{"Sandbox", "A robotic edit, by --~~"<>"~~"}, {"Sandbox2", "The determinant of the knot [[3_1]] is 3."}}]
Out[13]=	{}

In[14]:=	WikiGetPageText["Sandbox2"]
Out[14]=	The determinant of the knot [[3_1]] is 3.

String manipulation functions

WikiLink` provides functions WikiPageMatchQ, WikiPageFreeQ, WikiStringReplace and WikiStringCases. Each function works likes its usual Mathematica partner, StringMatchQ, StringFreeQ, StringReplace or StringCases. Instead of providing a string, or list of strings, as the first argument, you should give the name of a page, or a list of names.

You can use these to perform all sorts of editing tricks.

In[15]:=	WikiPageMatchQ[{"Sandbox", "Sandbox2"}, "determinant"]
Out[15]=	{False, False}

In[16]:=	WikiPageFreeQ[{"Sandbox", "Sandbox2"}, "[["~~(DigitCharacter..)~~"_"~~(DigitCharacter..)~~"]]"]
Out[16]=	{True, False}

In[17]:=	WikiStringCases[{"Sandbox", "Sandbox2"}, "[["~~ShortestMatch[__]~~"]]"]
Out[17]=	{{Sandbox, {[[User:ScottManualRobot|ScottManualRobot]]}}, {Sandbox2, {[[3_1]]}}}

In[18]:=	WikiStringReplace[{"Sandbox", "Sandbox2"}, "robotic edit"->"robotic edit (using WikiLink`)]
Out[18]=	$Failed

In[19]:=	WikiGetPageTexts[{"Sandbox", "Sandbox2"}]
Out[19]=	{{Sandbox, A robotic edit, by\ --[[User:ScottManualRobot|ScottManualRobot]] 14:54, 18 Feb 2006\ (EST)}, {Sandbox2, The determinant of the knot [[3_1]] is 3.}}

Troubleshooting

The instruction ShowJavaConsole[] will bring up a window in which some debugging information is displayed.

Todo

I'd love to create an Ant task which allows uploading a file to a wiki. We could then use this in build scripts for KnotTheory, etc. --Scott 04:07, 17 Sep 2005 (EDT)

See Also

All of the Mathematica notebooks in Category:Knot Atlas Maintenance Software rely on WikiLink, and so are good examples of how to use it.

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