add error codes repo

.gitattributes

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+/tests export-ignore
+.gitattributes export-ignore
+.gitignore export-ignore
+.php_cs.dist export-ignore
+.travis.yml export-ignore
+LICENSE export-ignore
+phpunit.xml export-ignore
+README.md export-ignore

.gitignore

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+/.idea/
+/build/
+/vendor/
+/composer.lock
+.DS_Store
+.php_cs.cache

.php_cs.dist

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+<?php
+
+$config = PhpCsFixer\Config::create()
+    ->setRules([
+        '@Symfony' => true,
+        '@PSR1' => true,
+        '@PSR2' => true,
+        'yoda_style' => false
+    ]);
+// special handling of fabbot.io service if it's using too old PHP CS Fixer version
+try {
+    PhpCsFixer\FixerFactory::create()
+        ->registerBuiltInFixers()
+        ->registerCustomFixers($config->getCustomFixers())
+        ->useRuleSet(new PhpCsFixer\RuleSet($config->getRules()));
+} catch (PhpCsFixer\ConfigurationException\InvalidConfigurationException $e) {
+    $config->setRules([]);
+} catch (UnexpectedValueException $e) {
+    $config->setRules([]);
+} catch (InvalidArgumentException $e) {
+    $config->setRules([]);
+}
+return $config;

.travis.yml

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+language: php
+
+php:
+  - 5.6
+  - 7.0
+
+before_script:
+  - composer self-update
+  - composer install --prefer-source --no-interaction
+
+install:
+  - composer require php-coveralls/php-coveralls
+
+script:
+  - mkdir -p build/logs
+  - vendor/bin/phpunit --configuration phpunit.xml --coverage-clover build/logs/clover.xml
+
+after_success:
+  - travis_retry php vendor/bin/php-coveralls -v
+
+

LICENSE

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+MIT License
+
+Copyright (c) 2018 Giancarlos Salas
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.

README.md

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+# XCodes - Greenter
+
+[![Travis-CI](https://img.shields.io/travis/giansalex/greenter-ws.svg?label=build&branch=master&style=flat-square)](https://travis-ci.org/giansalex/greenter-ws)
+[![Coverage Status](https://img.shields.io/coveralls/giansalex/greenter-ws.svg?label=coveralls&style=flat-square&branch=master)](https://coveralls.io/github/giansalex/greenter-ws?branch=master)
+[![Codacy Badge](https://api.codacy.com/project/badge/Grade/64cabd82882a461dbf82bdeb6accbc13)](https://www.codacy.com/app/giansalex/greenter-ws?utm_source=github.com&utm_medium=referral&utm_content=giansalex/greenter-ws&utm_campaign=Badge_Grade)  
+Códigos de Error en Facturación Electrónica SUNAT.
+
+# Install
+Via Composer from [packagist.org](https://packagist.org/packages/greenter/xcodes).
+```bash
+composer require greenter/xcodes
+```

composer.json

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+{
+    "name": "greenter/xcodes",
+    "description": "Códigos de Error en Facturación Electrónica SUNAT - Perú",
+    "keywords": ["greenter", "error-codes", "sunat", "facturacion electronica"],
+    "license": "MIT",
+    "authors": [
+        {
+            "name": "Giancarlos Salas",
+            "email": "[email protected]"
+        }
+    ],
+    "homepage": "https://github.com/giansalex/greenter-xcodes",
+    "type": "library",
+    "require": {
+	    "php": ">=5.5.9",
+        "greenter/core": "dev-master"
+    },
+	"require-dev": {
+        "phpunit/phpunit": ">=4.8 < 6.0"
+    },
+	"autoload": {
+        "psr-4": {
+            "Greenter\\": "src/"
+        }
+    },
+    "autoload-dev": {
+        "psr-4": {
+            "Tests\\Greenter\\": "tests/"
+        }
+    }
+}

phpunit.xml

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+<?xml version="1.0" encoding="utf-8" ?>
+<phpunit xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+        xsi:noNamespaceSchemaLocation="http://schema.phpunit.de/4.8/phpunit.xsd"
+        bootstrap="vendor/autoload.php"
+        colors="true"
+        convertErrorsToExceptions="true"
+        convertNoticesToExceptions="true"
+        convertWarningsToExceptions="true"
+        stopOnFailure="true">
+	<testsuites>
+		<testsuite name="Unit Tests">
+			<directory>tests</directory>
+		</testsuite>
+	</testsuites>
+	<filter>
+		<whitelist processUncoveredFilesFromWhitelist="true">
+			<directory suffix=".php">src</directory>
+			<exclude>
+				<directory>./tests</directory>
+				<directory>./vendor</directory>
+			</exclude>
+		</whitelist>
+	</filter>
+	<logging>
+		<log type="coverage-clover" target="build/logs/clover.xml"/>
+		<log type="junit" target="build/logs/junit.xml" logIncompleteSkipped="false"/>
+	</logging>
+</phpunit>

src/Validator/XmlErrorCodeProvider.php

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+<?php
+
+namespace Greenter\Validator;
+
+/**
+ * Class XmlErrorCodeProvider.
+ */
+class XmlErrorCodeProvider implements ErrorCodeProviderInterface
+{
+    private $xmlErrorFile;
+
+    /**
+     * XmlErrorCodeProvider constructor.
+     */
+    public function __construct()
+    {
+        $this->xmlErrorFile = __DIR__.'/../data/CodeErrors.xml';
+    }
+
+    /**
+     * Get all codes and messages.
+     *
+     * @return array
+     */
+    public function getAll()
+    {
+        $xpath = $this->getXpath();
+        $nodes = $xpath->query('/errors/error');
+
+        $items = [];
+        foreach ($nodes as $node) {
+            /** @var $node \DOMElement */
+            $key = $node->getAttribute('code');
+            $items[$key] = $node->nodeValue;
+        }
+
+        return $items;
+    }
+
+    /**
+     * Get Error Message by code.
+     *
+     * @param string $code
+     *
+     * @return string
+     */
+    public function getValue($code)
+    {
+        $xpath = $this->getXpath();
+        $nodes = $xpath->query("/errors/error[@code='$code']");
+
+        if ($nodes->length !== 1) {
+            return '';
+        }
+
+        return $nodes[0]->nodeValue;
+    }
+
+    private function getXpath()
+    {
+        $doc = new \DOMDocument();
+        $doc->load($this->xmlErrorFile);
+        $xpath = new \DOMXPath($doc);
+
+        return $xpath;
+    }
+}