add support for named arguments to messageformatter parse

framework/yii/i18n/MessageFormatter.php

@@ -134,11 +134,24 @@ class MessageFormatter extends Component
 			throw new NotSupportedException('You have to install PHP intl extension to use this feature.');
 		}
 
-		// TODO try to support named args
-//		if (version_compare(PHP_VERSION, '5.5.0', '<')) {
-//			$message = $this->replaceNamedArguments($message, $params);
-//			$params = array_values($params);
-//		}
+		// replace named arguments
+		if (($tokens = $this->tokenizePattern($pattern)) === false) {
+			return false;
+		}
+		$map = [];
+		foreach($tokens as $i => $token) {
+			if (is_array($token)) {
+				$param = trim($token[0]);
+				if (!isset($map[$param])) {
+					$map[$param] = count($map);
+				}
+				$token[0] = $map[$param];
+				$tokens[$i] = '{' . implode(',', $token) . '}';
+			}
+		}
+		$pattern = implode('', $tokens);
+		$map = array_flip($map);
+
 		$formatter = new \MessageFormatter($language, $pattern);
 		if ($formatter === null) {
 			$this->_errorCode = -1;
@@ -151,9 +164,12 @@ class MessageFormatter extends Component
 			$this->_errorMessage = $formatter->getErrorMessage();
 			return false;
 		} else {
-			return $result;
+			$values = [];
+			foreach($result as $key => $value) {
+				$values[$map[$key]] = $value;
+			}
+			return $values;
 		}
-
 	}
 
 	/**

tests/unit/framework/i18n/FallbackMessageFormatterTest.php

@@ -34,6 +34,24 @@ class FallbackMessageFormatterTest extends TestCase
 				]
 			],
 
+			[
+				'{'.self::SUBJECT.'} is {'.self::N.', number}', // pattern
+				self::SUBJECT_VALUE.' is '.self::N_VALUE, // expected
+				[ // params
+					self::N => self::N_VALUE,
+					self::SUBJECT => self::SUBJECT_VALUE,
+				]
+			],
+
+			[
+				'{'.self::SUBJECT.'} is {'.self::N.', number, integer}', // pattern
+				self::SUBJECT_VALUE.' is '.self::N_VALUE, // expected
+				[ // params
+					self::N => self::N_VALUE,
+					self::SUBJECT => self::SUBJECT_VALUE,
+				]
+			],
+
 			// This one was provided by Aura.Intl. Thanks!
 			[<<<_MSG_
 {gender_of_host, select,

tests/unit/framework/i18n/MessageFormatterTest.php

@@ -41,6 +41,15 @@ class MessageFormatterTest extends TestCase
 				]
 			],
 
+			[
+				'{'.self::SUBJECT.'} is {'.self::N.', number, integer}', // pattern
+				self::SUBJECT_VALUE.' is '.self::N_VALUE, // expected
+				[ // params
+					self::N => self::N_VALUE,
+					self::SUBJECT => self::SUBJECT_VALUE,
+				]
+			],
+
 			// This one was provided by Aura.Intl. Thanks!
 			[<<<_MSG_
 {gender_of_host, select,
@@ -119,6 +128,79 @@ _MSG_
 		];
 	}
 
+	public function parsePatterns()
+	{
+		return [
+			[
+				self::SUBJECT_VALUE.' is {0, number}', // pattern
+				self::SUBJECT_VALUE.' is '.self::N_VALUE, // expected
+				[ // params
+					0 => self::N_VALUE,
+				]
+			],
+
+			[
+				self::SUBJECT_VALUE.' is {'.self::N.', number}', // pattern
+				self::SUBJECT_VALUE.' is '.self::N_VALUE, // expected
+				[ // params
+					self::N => self::N_VALUE,
+				]
+			],
+
+			[
+				self::SUBJECT_VALUE.' is {'.self::N.', number, integer}', // pattern
+				self::SUBJECT_VALUE.' is '.self::N_VALUE, // expected
+				[ // params
+					self::N => self::N_VALUE,
+				]
+			],
+
+			[
+				"{0,number,integer} monkeys on {1,number,integer} trees make {2,number} monkeys per tree",
+				"4,560 monkeys on 123 trees make 37.073 monkeys per tree",
+				[
+					0 => 4560,
+					1 => 123,
+					2 => 37.073
+				],
+				'en_US'
+			],
+
+			[
+				"{0,number,integer} Affen auf {1,number,integer} Bäumen sind {2,number} Affen pro Baum",
+				"4.560 Affen auf 123 Bäumen sind 37,073 Affen pro Baum",
+				[
+					0 => 4560,
+					1 => 123,
+					2 => 37.073
+				],
+				'de',
+			],
+
+			[
+				"{monkeyCount,number,integer} monkeys on {trees,number,integer} trees make {monkeysPerTree,number} monkeys per tree",
+				"4,560 monkeys on 123 trees make 37.073 monkeys per tree",
+				[
+					'monkeyCount' => 4560,
+					'trees' => 123,
+					'monkeysPerTree' => 37.073
+				],
+				'en_US'
+			],
+
+			[
+				"{monkeyCount,number,integer} Affen auf {trees,number,integer} Bäumen sind {monkeysPerTree,number} Affen pro Baum",
+				"4.560 Affen auf 123 Bäumen sind 37,073 Affen pro Baum",
+				[
+					'monkeyCount' => 4560,
+					'trees' => 123,
+					'monkeysPerTree' => 37.073
+				],
+				'de',
+			],
+		];
+	}
+
 	/**
 	 * @dataProvider patterns
 	 */
@@ -129,6 +211,16 @@ _MSG_
 		$this->assertEquals($expected, $result, $formatter->getErrorMessage());
 	}
 
+	/**
+	 * @dataProvider parsePatterns
+	 */
+	public function testParseNamedArguments($pattern, $expected, $args, $locale = 'en_US')
+	{
+		$formatter = new MessageFormatter();
+		$result = $formatter->parse($pattern, $expected, $locale);
+		$this->assertEquals($args, $result, $formatter->getErrorMessage() . ' Pattern: ' . $pattern);
+	}
+
 	public function testInsufficientArguments()
 	{
 		$expected = '{'.self::SUBJECT.'} is '.self::N_VALUE;