Help:Context

The <context> ... </context> tags process their ConTeXt contents on the fly and include the result on the page as an image. Whitespace is cropped out. The following attributes may be set:

• source="yes" displays the source before the output.
• text="some text" places 'some text' between the source and the output.
• mode="mkii" forces Mark II instead of the default Mark IV. But please don't use Mark II unless absolutely necessary.
• force="yes" forces regeneration of the PNG image each time the page is loaded. This is expensive, so please only use it on special occasions (like in the example below where we are showing the \contextversionnumber.

Quotation marks around attribute strings are only required if the attribute contains non-alphabetic characters.

The extension wraps your code with a bit of extra ConTeXt code to get a compilable file. There are two different cases, depending on whether your code contains \starttext ... \stoptext or not.

With a starttext/stoptext block, the wrapping uses:

\setuppapersize[A5][A5]
\setupbodyfont[8pt]
\setupcolors[state=start]
.. your input here ..

and without starttext/stoptext, the extension uses:

\setuppapersize[A5][A5]
\setupbodyfont[8pt]
\setupcolors[state=start]
\starttext
\startTEXpage 
.. your input here ..
\stopTEXpage
\stoptext

Examples

Plain example

Wiki markup	Wiki display
<context> \setupcolors [state=start] \framed [background=color, backgroundcolor=gray, offset=0.5cm ]{hello world!} </context>

source=yes

Wiki markup	Wiki display
<context source="yes" text="produces"> \setupcolors [state=start] \framed [background=color, backgroundcolor=gray, offset=0,5cm ]{hello world!} </context>	\setupcolors [state=start] \framed [background=color, backgroundcolor=gray, offset=0.5cm ]{hello world!} produces

mode=mkiv and mode=mkii

By default, the wiki compiles examples using MkIV. You can specify that you want to use MkIV by adding the option mode=mkii to the tag. Because MkII examples are visually indistinguishable from MkIV examples, it is good practice to start MkII examples with a comment % mode=mkii.

Wiki markup	Wiki display
<context source=yes force=yes> Version: \contextversionnumber </context>	Version: \contextversionnumber internal error: copy error /var/www/contextgarden.net/wiki/htdocs/wikiteximage/d955ce230f938712a3b4f76209da8f0b.png
<context mode=mkii source=yes force=yes> Version: \contextversionnumber </context>	% mode=mkii Version is: \contextversionnumber internal error: copy error kxbMIj/cropped.pdf

Displaying multiple pages

\setuppapersize[A10, landscape][A8, landscape]

\setuppaper[nx=2, ny=2]     % arrange pages 2 by 2 (must come before \setuparranging[XY])
\setuparranging[XY]         % arrange pages n by n (across, then down)
\setuppagenumbering[location=footer] % page numbers are always useful
\showframe[edge]            % Draw line around each page. Prevents overzealous cropping

one \page[yes]
two \page[yes]
three \page[yes]
four

/context>