Allow to resolve filters with custom resolver

Author: vidy

README.md

@@ -1,205 +1,15 @@
 # Blade Filters
 
-Use string filters easily in Laravel Blade.
+Forked from [`conedevelopment/blade-filters`](https://github.com/conedevelopment/blade-filters), comparing with the original, your can resolve filters with custom resolver.
 
-If you have any question how the package works, we suggest to read this post:
-[Laravel Blade Filters](https://pineco.de/laravel-blade-filters/).
 
-## Getting started
-
-You can install the package with composer, running the `composer require conedevelopment/blade-filters` command.
-
-## Using the filters
-
-You can use the filters in any of your blade templates.
-
-#### Regular usage:
-
-```php
-{{ 'john' | ucfirst }} // John
-```
-
-#### Chained usage:
-
-```php
-{{ 'john' | ucfirst | substr:0,1 }} // J
-
-{{ '1999-12-31' | date:'Y/m/d' }} // 1999/12/31
-```
-
-#### Passing non-static values:
-
-```php
-{{ $name | ucfirst | substr:0,1 }}
-
-{{ $user['name'] | ucfirst | substr:0,1 }}
-
-{{ $currentUser->name | ucfirst | substr:0,1 }}
-
-{{ getName() | ucfirst | substr:0,1 }}
-```
-
-#### Passing variables as filter parameters:
-
-```php
-$currency = 'HUF'
-
-{{ '12.75' | currency:$currency }} // HUF 12.75
-```
-
-#### Built-in Laravel functionality:
-
-```php
-{{ 'This is a title' | slug }} // this-is-a-title
-
-{{ 'This is a title' | title }} // This Is A Title
-
-{{ 'foo_bar' | studly }} // FooBar
-```
-
-### Limitations
-
-#### Echos
-
-Laravel supports three types of echos. Raw – `{!!  !!}`, regular – `{{ }}` and escaped (legacy) – `{{{ }}}`.
-Filters can be used **only with regular** echos. Also, filters **cannot be used in blade directives directly**.
-
-> Why? Raw should be as it is. Forced escaping should be escaped only, without modification.
-
-#### Bitwise operators
-
-Bitwise operators are allowed, but they must be wrapped in parentheses,
-since they are using the same "pipe operator".
-
-```php
-{{ ('a' | 'b') | upper }} // C
 ```
-
-## The Filters
-
-### About the filters
-
-Filters are string functions, that are defined in the `Pine\BladeFilters\BladeFilters` facade.
-It has several reasons, that are discussed in the [Create custom filters](#create-custom-filters) section.
-
-### The available filters
-
-The package comes with a few built-in filters, also the default Laravel string methods can be used.
-
-#### Currency
-
-```php
-{{ '17.99' | currency:'CHF' }} // CHF 17.99
-
-{{ '17.99' | currency:'€',false }} // 17.99 €
-```
-
-> Passing `false` as the second parameter will align the symbol to the right.
-
-#### Date
-
-```php
-{{ '1999/12/31' | date }} // 1999-12-31
-
-{{ '1999/12/31' | date:'F j, Y' }} // December 31, 1999
-```
-
-#### Lcfirst
-
-```php
-{{ 'Árpamaláta' | lcfirst }} // árpamaláta
-```
-
-> Unlike PHP's default `lcfirst()`, this filter works with multi-byte strings as well.
-
-#### Reverse
-
-```php
-{{ 'ABCDEF' | reverse }} //FEDCBA
-```
-
-#### Substr
-
-```php
-{{ 'My name is' | substr:0,2 }} // My
-
-{{ 'My name is' | substr:3 }} // name is
-```
-
-#### Trim
-
-```php
-{{ '   trim me    ' | trim }} // trim me
-```
-
-#### Ucfirst
-
-```php
-{{ 'árpamaláta' | ucfirst }} // Árpamaláta
-```
-
-> Unlike PHP's default `ucfirst()`, this filter works with multi-byte strings as well.
-
-### Supported built-in Str functions
-
-- [Str::after()](https://laravel.com/docs/5.8/helpers#method-str-after)
-- [Str::before()](https://laravel.com/docs/5.8/helpers#method-str-before)
-- [Str::camel()](https://laravel.com/docs/5.8/helpers#method-str-camel)
-- [Str::finish()](https://laravel.com/docs/5.8/helpers#method-str-finish)
-- [Str::kebab()](https://laravel.com/docs/5.8/helpers#method-str-kebab)
-- [Str::limit()](https://laravel.com/docs/5.8/helpers#method-str-limit)
-- [Str::plural()](https://laravel.com/docs/5.8/helpers#method-str-plural)
-- [Str::singular()](https://laravel.com/docs/5.8/helpers#method-str-singular)
-- [Str::slug()](https://laravel.com/docs/5.8/helpers#method-str-slug)
-- [Str::snake()](https://laravel.com/docs/5.8/helpers#method-str-snake)
-- [Str::start()](https://laravel.com/docs/5.8/helpers#method-str-start)
-- [Str::studly()](https://laravel.com/docs/5.8/helpers#method-str-studly)
-- [Str::title()](https://laravel.com/docs/5.8/helpers#method-str-title)
-
-## Create custom filters
-
-As it was mentioned before, every filter is a method that can be called through the `Pine\BladeFilters\BladeFilters` facade.
-It has several reasons why is this approach better, but let's take the most important ones:
-
-- It's easy to define custom filters by extending the facade with the `BladeFilters::macro()`,
-- No extra files, autoloading or class mapping, it's enough to use any service provider to define filters,
-- By default Laravel provides a bunch of handy methods that we can use as filters.
-
-### Parameter ordering
-
-PHP is not very strict regarding to function's parameter ordering and this way it's easier to coordiante or override them.
-Also, sometimes it happens with Laravel's string functions. It's important that only those functions can be used, that accept the parameters in the following order:
-
-1. The value to be transformed
-2. Any other parameter if needed
-
-For example:
-
-```php
-BladeFilters::macro('filterName', function ($value, $param1 = 'default', $param2 = null) {
-    return ...;
-});
-
-{{ 'string' | filterName:1,2 }}
-```
-
-### Defining custom filters
-
-Since the filters are only methods that are defined in the `Str` facade and the `BladeFilters` class, to create filters,
-you need to create a macro in a service provider's `boot()` method.
-
-```php
-class AppServiceProvider extends ServiceProvider
-{
-    public function boot()
-    {
-        BladeFilters::macro('substr', function ($value, $start, $length = null) {
-            return mb_substr($value, $start, $length);
-        });
-    }
-}
+    $assetContextResolver = function(){
+            return '(isset($local_asset_context)? $local_asset_context: $base_asset_context)->';
+    };
+    BladeFiltersCompiler::extend('theme_asset_url', $assetContextResolver);
+    BladeFiltersCompiler::extend('theme_asset_import', $assetContextResolver);
 ```
 
-## Contribute
 
-If you found a bug or you have an idea connecting the package, feel free to open an issue.
+Please check original repo for other documents.

src/BladeFiltersCompiler.php

@@ -4,6 +4,8 @@
 
 class BladeFiltersCompiler
 {
+    protected static $containers = [];
+
     /**
      * Compile the echo statements.
      *
@@ -35,19 +37,29 @@ protected function parseFilters($value)
             return $value;
         }
 
+
         $wrapped = '';
 
         foreach ($filters as $key => $filter) {
             $filter = preg_split('/:(?=(?:[^\'\"\`]*([\'\"\`])[^\'\"\`]*\1)*[^\'\"\`]*$)/u', trim($filter));
 
+            $filterName =  $filter[0];
+
+            $containered = isset(self::$containers[$filterName]) ? call_user_func(self::$containers[$filterName], $filterName): BladeFilters::class.'::';
+
             $wrapped = sprintf(
-                '\Pine\BladeFilters\BladeFilters::%s(%s%s)',
-                $filter[0],
+                $containered.'%s(%s%s)',
+                $filterName,
                 $key === 0 ? trim(str_replace($matches[0], '', $value)) : $wrapped,
                 isset($filter[1]) ? ",{$filter[1]}" : ''
             );
         }
 
         return $wrapped;
     }
-}
+
+    public static function extend($name, callable $container)
+    {
+        self::$containers[$name] = $container;
+    }
+}