/**
* Create a mapping object that allows camel case parameters to be looked up
* for their Hungarian counterparts. The mapping is stored in a private
* parameter called `_hungaianMap` which can be accessed on the source object.
* @param {object} o
* @memberof DataTable#oApi
*/
function _fnHungarianMap ( o )
{
var
hungarian = 'a aa ao as b fn i m o s ',
match,
newKey,
map = {};
$.each( o, function (key, val) {
match = key.match(/^([^A-Z]+?)([A-Z])/);
if ( match && hungarian.indexOf(match[1]+' ') !== -1 )
{
newKey = key.replace( match[0], match[2].toLowerCase() );
map[ newKey ] = key;
if ( match[1] === 'o' )
{
_fnHungarianMap( o[key] );
}
}
} );
o._hungaianMap = map;
}
/**
* Convert from camel case parameters to Hungarian, based on a Hungarian map
* created by _fnHungarianMap.
* @param {object} src The model object which holds all parameters can has
* previously been run through `_fnHungarianMap`.
* @param {object} user The object to convert from camel case to Hungarian.
* @param {boolean} force When set to `true`, properties which already have a
* Hungarian value in the `user` object will be overwritten. Otherwise they
* won't be.
* @memberof DataTable#oApi
*/
function _fnCamelToHungarian ( src, user, force )
{
if ( ! src._hungaianMap )
{
return;
}
var hungarianKey;
$.each( user, function (key, val) {
hungarianKey = src._hungaianMap[ key ];
if ( hungarianKey !== undefined && (force || user[hungarianKey] === undefined) )
{
user[hungarianKey] = user[ key ];
if ( hungarianKey.charAt(0) === 'o' )
{
_fnCamelToHungarian( src[hungarianKey], user[key] );
}
}
} );
}
/**
* Language compatibility - when certain options are given, and others aren't, we
* need to duplicate the values over, in order to provide backwards compatibility
* with older language files.
* @param {object} oSettings dataTables settings object
* @memberof DataTable#oApi
*/
function _fnLanguageCompat( oLanguage )
{
var oDefaults = DataTable.defaults.oLanguage;
/* Backwards compatibility - if there is no sEmptyTable given, then use the same as
* sZeroRecords - assuming that is given.
*/
if ( !oLanguage.sEmptyTable && oLanguage.sZeroRecords &&
oDefaults.sEmptyTable === "No data available in table" )
{
_fnMap( oLanguage, oLanguage, 'sZeroRecords', 'sEmptyTable' );
}
/* Likewise with loading records */
if ( !oLanguage.sLoadingRecords && oLanguage.sZeroRecords &&
oDefaults.sLoadingRecords === "Loading..." )
{
_fnMap( oLanguage, oLanguage, 'sZeroRecords', 'sLoadingRecords' );
}
}
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