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This is a basic introduction to the CNXML language. It includes a description on how to begin a CNXML module and also examples of the basic tags needed to start writing in CNXML.

Starting with cnxml

CNXML is a lightweight XML markup language for marking up educational content. The goal of CNXML is to conveythe content of the material and not a particular presentation. Connexions uses the Connexions Markup Language (CNXML) as its primary language for storing documents. Now let's get started!

Cnxml tags

Document

All CNXML documents have as their root the document tag. Everything about the document including it's metadata and content are containedwithin the document tag. It is important that you understand the basic structure for a CNXML document. The structure isas follows:

    Document (root tag)

  • Title
  • Metadata Section
  • Content Section

The document tag has one required attribute:

  • id - a unique ID given to the document.
This is automatically assigned.

Id requirements

One major difference between CNXML and other markup languages is the id attribute requirement. Certain tags require that you include the id attribute, but all can possess an id . The tags requiring an id are listed below:

  • document
  • para
  • equation
  • list
  • rule
  • definition
  • exercise
  • table
  • div
  • section
  • subfigure
  • example
  • footnote
  • problem
  • solution
  • block quotes
  • media
  • meaning
  • proof
  • list
  • preformat
  • block code
  • figure
  • block notes
So, if you are going to use any of the above tags, be sure to add the id attribute and give it a unique 'id'. Be aware that in CNXML 0.6 ids will be generated automatically, but you are still permitted to specify you own ids if you wish.

Here is an example of a couple of paras containing a user generated ids.

<para id='uniqueid1'>This is an example to illustrate the use of the<code>id</code>attribute.</para><para id='uniqueid2'>This paragraph has a different id than the last.</para>
Any tag can contain an id attribute. This is useful if you want to link to the information contained in a particular tag.

Namespaces

The document tag should also contain any namespace declarations. Namespaces allow us to easily use other mark-up languages within CNXML without having toworry about whether tag name collision will occur. For simple documents using only CNXML, you need to include theCNXML namespace attribute . Any additional languages need to be declared as well andshould be given their own prefixes. For example, to associate the MathML namespace with the prefix "m",include the following attribute: xmlns:m='http://www.w3.org/1998/Math/MathML' . This states that any tag with a prepended "m" will beinterpreted as a MathML tag while any tag without a prefix will be interpreted as CNXML. The document tag should also contain the metadata namespace xmlns:md="http://cnx.rice.edu/mdml/0.4" , the bibtex namspace xmlns:bib="http://bibtexml.sf.net/" , and the question markup language xmlns:q="http://cnx.rice.edu/qml/1.0" .

This what the document tag should look like.

<document xmlns="http://cnx.rice.edu/cnxml" xmlns:m="http://www.w3.org/1998/Math/MathML"xmlns:md="http://cnx.rice.edu/mdml/0.4" xmlns:bib="http://bibtexml.sf.net/"xmlns:q="http://cnx.rice.edu/qml/1.0" id="m9000" module-id="" cnxml-version="0.6">
Be aware that the you document id can not be the same as this example. Each module will have its own unique id.

Questions & Answers

how does Neisseria cause meningitis
Nyibol Reply
what is microbiologist
Muhammad Reply
what is errata
Muhammad
is the branch of biology that deals with the study of microorganisms.
Ntefuni Reply
What is microbiology
Mercy Reply
studies of microbes
Louisiaste
when we takee the specimen which lumbar,spin,
Ziyad Reply
How bacteria create energy to survive?
Muhamad Reply
Bacteria doesn't produce energy they are dependent upon their substrate in case of lack of nutrients they are able to make spores which helps them to sustain in harsh environments
_Adnan
But not all bacteria make spores, l mean Eukaryotic cells have Mitochondria which acts as powerhouse for them, since bacteria don't have it, what is the substitution for it?
Muhamad
they make spores
Louisiaste
what is sporadic nd endemic, epidemic
Aminu Reply
the significance of food webs for disease transmission
Abreham
food webs brings about an infection as an individual depends on number of diseased foods or carriers dully.
Mark
explain assimilatory nitrate reduction
Esinniobiwa Reply
Assimilatory nitrate reduction is a process that occurs in some microorganisms, such as bacteria and archaea, in which nitrate (NO3-) is reduced to nitrite (NO2-), and then further reduced to ammonia (NH3).
Elkana
This process is called assimilatory nitrate reduction because the nitrogen that is produced is incorporated in the cells of microorganisms where it can be used in the synthesis of amino acids and other nitrogen products
Elkana
Examples of thermophilic organisms
Shu Reply
Give Examples of thermophilic organisms
Shu
advantages of normal Flora to the host
Micheal Reply
Prevent foreign microbes to the host
Abubakar
they provide healthier benefits to their hosts
ayesha
They are friends to host only when Host immune system is strong and become enemies when the host immune system is weakened . very bad relationship!
Mark
what is cell
faisal Reply
cell is the smallest unit of life
Fauziya
cell is the smallest unit of life
Akanni
ok
Innocent
cell is the structural and functional unit of life
Hasan
is the fundamental units of Life
Musa
what are emergency diseases
Micheal Reply
There are nothing like emergency disease but there are some common medical emergency which can occur simultaneously like Bleeding,heart attack,Breathing difficulties,severe pain heart stock.Hope you will get my point .Have a nice day ❣️
_Adnan
define infection ,prevention and control
Innocent
I think infection prevention and control is the avoidance of all things we do that gives out break of infections and promotion of health practices that promote life
Lubega
Heyy Lubega hussein where are u from?
_Adnan
en français
Adama
which site have a normal flora
ESTHER Reply
Many sites of the body have it Skin Nasal cavity Oral cavity Gastro intestinal tract
Safaa
skin
Asiina
skin,Oral,Nasal,GIt
Sadik
How can Commensal can Bacteria change into pathogen?
Sadik
How can Commensal Bacteria change into pathogen?
Sadik
all
Tesfaye
by fussion
Asiina
what are the advantages of normal Flora to the host
Micheal
what are the ways of control and prevention of nosocomial infection in the hospital
Micheal
what is inflammation
Shelly Reply
part of a tissue or an organ being wounded or bruised.
Wilfred
what term is used to name and classify microorganisms?
Micheal Reply
Binomial nomenclature
adeolu
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Source:  OpenStax, Connexions tutorial and reference (中文指導及參考 - chinese). OpenStax CNX. Mar 09, 2006 Download for free at http://cnx.org/content/col10340/1.2
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