xtypejs Extension - Auto Camel Name Scheme

This extension provides a virtual name scheme named auto-camel, which when is the active name scheme, automatically assigns a camel-cased type name to all types in xtypejs, including all default and custom types.

This happens automatically, so that even custom types registered in xtypejs after the extension has already been applied to xtypejs will also each automatically acquire a camel-cased version of their respective type names in the auto-camel name scheme. This is the primary difference between the auto-camel name scheme provided by this extension, and the regular xtypejs camel name scheme module, which only provides a static set of camel-cased type names for the xtypejs built-in types.

Note that this is an xtypejs extension, not an xtypejs name scheme. It therefore requires registration to xtypejs using the xtype.ext.registerExtension method, and cannot be registered using the xtype.ext.registerNameScheme method.

Installation with npm

npm install xtypejs-extension-autocamel-name-scheme --save

NodeJs import and setup

var xtype = require('xtypejs');
var xtypejsAutoCamelNameSchemeExtension = require('xtypejs-extension-autocamel-name-scheme');

xtype.ext.registerExtension(xtypejsAutoCamelNameSchemeExtension);
xtype.options.setNameScheme('auto-camel');

/*
 * Scheme is now active here, and all default and custom types
 * in xtype will now automatically use a camel-converted
 * version of their registered names. For instance, for the
 * 'positive_number' type, the camel name 'positiveNumber'
 * should be used when referencing it in type expressions.
 */

HTML script tag import and setup

Include the extension script after the xtypejs script to automatically register the extension into xtypejs without exporting any globals. This relies on xtypejs being available in the xtype global variable.

<script src="path/to/xtype.js"></script>
<script src="path/to/xtypejs-extension-autocamel-name-scheme.js"></script>

<script>
    xtype.options.setNameScheme('auto-camel');
    // Scheme is now active here
</script>

If the extension script needs to be included before the xtypejs script, or the xtype global is not available (or is using a different variable name) when the extension script is included, the extension will be exported instead to a global variable named xtypejsAutoCamelNameSchemeExtension, which must then be manually registered into xtypejs as an extension.

<!--
    Assume 'xtype' global variable not available here. The following
    exports global variable 'xtypejsAutoCamelNameSchemeExtension'
-->
<script src="path/to/xtypejs-extension-autocamel-name-scheme.js"></script>

<!-- Other things here... -->

<script>
    // Assume xtypejs later available here in variable 'myXtype'
    myXtype.ext.registerExtension(xtypejsAutoCamelNameSchemeExtension);
    myXtype.options.setNameScheme('auto-camel');

    // Scheme is now active here
</script>

Usage

When the auto-camel name scheme is the active scheme, all types, including newly registered custom types, will automatically use a camel-version of the name of the type.

Example:

xtype.options.setNameScheme('auto-camel');

// Registration of custom type 'app_flag' automatically
// uses the camel version of the name ('appFlag') instead:

xtype.registerType('app_flag', 'positive_integer, single_char_string');
xtype.which('g', 'appFlag') === 'appFlag';    // 'app_flag' type uses camel name 'appFlag'

For other related documentation for working with name schemes, also see:

• Switching back to the default name scheme
• setNameScheme method

Preventing name collisions

If the HTML script tag was used to import the extension script in a browser environment and in the absence of xtypejs in the xtype global variable, the extension will be exported to a global variable named xtypejsAutoCamelNameSchemeExtension. The noConflict method of the exported extension can be used to reassign the extension to a different namespace or variable name, and return the global xtypejsAutoCamelNameSchemeExtension variable to its previous value prior to including the extension script.

var myAutoCamel = xtypejsAutoCamelNameSchemeExtension.noConflict();

/*
 * myAutoCamel is now xtypejsAutoCamelNameSchemeExtension, while 
 * xtypejsAutoCamelNameSchemeExtension variable is now returned to
 * its original value prior to inclusion of the extension script.
 */ 

Type names used for built-in types

Type Default Name | Name in Scheme :------------------ | :------------ null | null undefined | undefined nan | nan symbol | symbol function | function date | date error | error regexp | regexp boolean | boolean true | true false | false string | string whitespace | whitespace single_char_string | singleCharString multi_char_string | multiCharString empty_string | emptyString blank_string | blankString non_empty_string | nonEmptyString non_blank_string | nonBlankString number | number positive_number | positiveNumber negative_number | negativeNumber zero | zero non_positive_number| nonPositiveNumber non_negative_number| nonNegativeNumber non_zero_number | nonZeroNumber integer | integer positive_integer | positiveInteger negative_integer | negativeInteger float | float positive_float | positiveFloat negative_float | negativeFloat infinite_number | infiniteNumber positive_infinity | positiveInfinity negative_infinity | negativeInfinity non_infinite_number| nonInfiniteNumber array | array empty_array | emptyArray single_elem_array | singleElemArray multi_elem_array | multiElemArray non_empty_array | nonEmptyArray object | object empty_object | emptyObject single_prop_object | singlePropObject multi_prop_object | multiPropObject non_empty_object | nonEmptyObject primitive | primitive nothing | nothing any | any none | none