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Importer

<<JerryI`WLX`Importer`

ImportComponent​

Is used to import WLX files as Wolfram Expressions

ImportComponent[path_String, opts___] ___

an imported file is processed using [[Reference/WLX/WLX#ProcessString]] immediately. The result can be cached and then used without costs of parsing.

path​

A universal path resolver is used, it is indifferent for the way how you write the path to a file in Unix- or Windows-style.

Nested folders​

When you import a component inside other component, an automatic guess happens if the given file is located in the same folder or an absolute path is used, i.e.

  • Root
    • Main.wlx
    • Label
      • Label.wlx
      • Components
        • Someother.wlx

and

Main.wlx
...
... = ImportComponent["Label/Label.wlx"]
Label/Label.wlx
...
... = ImportComponent["Components/Someother.wlx"]

are valid.

opts​

The following options are valid

  • "Localize" -> _Bool is the same as for ProcessString. Default value is True.

Notes on SetDelayed and Set​

Normally once component imported it can be assigned to a symbol. However, SetDelayed still imports a component, but keeps an parsed expression unevaluated (Hold), i.e.

Component := ImportComponent["Component.wlx"];

<Component Option={Whatever}/>

where

Component.wlx
With[{Opt = $Options["Option"]},
	<h1><Opt/></h1>	
]

While the typical case for Set operator is when a component returns a function, i.e.

Component = ImportComponent["Component.wlx"];

<Component Option={Whatever}/>

and

Component.wlx
Component[OptionsPattern[]] := With[{Opt = OptionValue["Option"]},
	<h1><Opt/></h1>	
]

Component

$Options​

Is a global symbol that provides access to all passed XML attributes to a WLX component

$Options _Association

$FirstChild​

A global symbol that provides access to the first passed child (as XML children) or an argument (like in normal WL) to a WLX component

$FirstChild _

$Children​

A global symbol that provides access to all passed children (as XML children) or arguments (like in normal WL) to a WLX component

$Children _List

CacheControl​

Enables or disables caching for imported components

JerryI`WLX`Importer`Private`CacheControl[interval_String | True | False]

The possible values for a time-interval are

  • "Hour"
  • "Minute"
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