Version 3 is now the current version of MathJax. This document is for version 1.
The MathJax.InputJax Class¶
An input jax is stored as a pair of files in a subdirectory of the
jax/input directory, with the subdirectory name being the name of
the input jax. For example, the TeX input jax is stored in
jax/input/TeX. The first file,
config.js, is loaded when
MathJax is being loaded and configured, and is indicated by listing
the input jax directory in the jax array of the MathJax
config.js file creates a subclass of the
MathJax.InputJax object for the new input jax and registers that
with MathJax, along with the MIME-type that will be used to indicate
the mathematics that is to be processed by the input jax.
The main body of the input jax is stored in the second file,
jax.js, which is loaded when the input jax is first called on to
translate some mathematics. This file augments the original input jax
subclass with the additional methods needed to do the translation.
MathJax calls the input jax’s
Translate() method when it needs
the input jax to translate the contents of a math
The MathJax.InputJax class is a subclass of the MathJax Jax class, and inherits the properties and methods of that class. Those listed below are the additional or overridden ones from that class.
The name of the jax.
The version number of the jax.
The directory where the jax files are stored (e.g.,
This is the main routine called by MathJax when a
<script>of the appropriate type is found. The default
Translate()method simply loads the
jax.jsfile and returns that callback for that load function so that MathJax will know when to try the
Translate()action again. When the
jax.jsfile loads, it should override the default
Translate()with its own version that does the actual translation; that way, when the second Translate call is made, it will be to the actual translation routine rather than the default loader.
The translation process should include the creation of an Element Jax that stores the data needed for this element.
- script — the
<script>element to be translated
the element jax resulting from the translation
- script — the
This registers the MIME-type associated with this input jax so that MathJax knows to call this input jax when it sees a
<script>of that type. An input jax can register more than one type, but it will be responsible for distinguishing elements of the various types from one another.
- mimetype — the MIME-type of the input this jax processes