Gitbook-Plugin-Jazer - REGEXP

Warning! This is a test version.

This is work in development. Use it at your own risk.

What is this

This is a plugin example for gitbook and allows you to:

1. Create {% regexp %} exercises: The answer to the posed question is validated using a regular expresion written by the gitbook author (Using XRegExp)
2. Create {% questionjs %} exercises: The answer to the psoed question is validated using a JavaScript function written by the gitbook author

Install

To use the jazer plugin in your Gitbook project, add the jazer plugin to the book.json file, then install the plugins using gitbook install.

{
    "plugins": ["jazer"]
}

Regexp questions

Simple regexp question example

{% regexp %}
¿Who discovered America?
{% solution %}
Christopher Columbus
{% validation %}
/(\s*(Crist[oó]bal\s+)?Col[oó]n\s*)|((Christopher\s+)?Columbus)/i
{% endregexp %}

regexp example using XRegExp:

You can also use XRegExp:

{% regexp %}
Who were the Spanish kings when America was discovered?
{% solution %}
Catholic Monarchs, also called Catholic Kings, or Catholic Majesties, Spanish Reyes Católicos, Ferdinand II of Aragon and Isabella I of Castile
{% validation %}
/
  (Catholic\s+Monarchs)            | 
  (Catholic\s+Kings)               |
  (Catholic\s+Majesties)           |
  ((Spanish)?\s+Reyes\s+Católicos) |
  (Ferdinand(\s+II)?(\s+of\s+Aragon)?(\s+and)?(\s+Isabella)(\s+I)?(\s+of\s+Castill?e) |
  (Isabella)(\s+I)?(\s+of\s+Castill?e)(\s+and)?\s+(Ferdinand(\s+II)?(of\s+Aragon)?
/ix
{% endregexp %}

Questionjs exercises

{% questionjs  width="30%", height="10%", color="#BB504B"%}
Who were the Spanish kings when America was discovered?
{% solution %}
Catholic Monarchs, also called Catholic Kings, or Catholic Majesties, Spanish Reyes Católicos, Ferdinand II of Aragon and Isabella I of Castile
{% validation %}
function(answer) {
  if (answer.match(/Catholic\s+(Monarchs|Kings|Majesties)/i)) return true;
  if (answer.match(/(Spanish\s+)?Reyes\s+Cat[oó]licos/i)) return true;
  if (answer.match(/isabel|isabella/i && respuesta.match(/fernando|ferdinand/i) )) return true;
}
{% endquestionjs %}

Parameters

For each exercise you can specify four parameters: width, height, color and gutter`

{% questionjs  width="30%", height="10%", color="#BB504B", gutter="true"%}

• The width and height must be a percentage,
• color can be any CSS valid value and
• gutter must be true or false (whether to show or not the gutter).

Errors

• For regexp questions an alert window will open in case the XRegExp has errors.
• For questionjs questions an alert window will open in case the function code has errors.

Example of regexp question having errors

In the following regular expression the open parenthesis has no matching closing parenthesis:

{% regexp %}
¿Quienes reinaban en España cuando se descubrió America?
{% solution %}
Los Reyes Católicos
{% validation %}
/
  (Isabel\s+                    # paréntesis abrir
  y
  \s+Fernando                   # sin
|
  Reyes\s+Cat[oó]licos          # paréntesis cerrar
/ix
{% endregexp %}

When the plugin is processed it emits an alert with the error message: