wptexturize() adjustments:

* Only place an apostrophe before a number when it has exactly two digits.
* Never match '99' with the single prime pattern.
* Always assume '99' is an abbreviated year at the end of a quotation.
* Add unit tests.
* Resolves the unit test broken in [28721] for #8775.

See #26850.


git-svn-id: https://develop.svn.wordpress.org/trunk@28761 602fd350-edb4-49c9-b593-d223f7449a82

tests/phpunit/tests/formatting/WPTexturize.php

@@ -1279,4 +1279,87 @@ class Tests_Formatting_WPTexturize extends WP_UnitTestCase {
 			),
 		);
 	}
-}
+
+	/**
+	 * Year abbreviations consist of exactly two digits.
+	 *
+	 * @ticket 26850
+	 * @dataProvider data_quotes_and_dashes
+	 */
+	function test_year_abbr( $input, $output ) {
+		return $this->assertEquals( $output, wptexturize( $input ) );
+	}
+
+	function data_year_abbr() {
+		return array(
+			array(
+				"word '99 word",
+				"word ’99 word",
+			),
+			array(
+				"word '99. word",
+				"word ’99. word",
+			),
+			array(
+				"word '99, word",
+				"word ’99, word",
+			),
+			array(
+				"word '99; word",
+				"word ’99; word",
+			),
+			array(
+				"word '99' word", // For this pattern, prime doesn't make sense.  Should get apos and a closing quote.
+				"word ’99’ word",
+			),
+			array(
+				"word '99'. word",
+				"word ’99’. word",
+			),
+			array(
+				"word '99', word",
+				"word ’99’, word",
+			),
+			array(
+				"word '99.' word",
+				"word ’99.’ word",
+			),
+			array(
+				"word '99",
+				"word ’99",
+			),
+			array(
+				"'99 word",
+				"’99 word",
+			),
+			array(
+				"word '999 word", // Does not match the apos pattern, should be opening quote.
+				"word ‘999 word",
+			),
+			array(
+				"word '9 word",
+				"word ‘9 word",
+			),
+			array(
+				"word '99.9 word",
+				"word ‘99.9 word",
+			),
+			array(
+				"word '999",
+				"word ‘999",
+			),
+			array(
+				"word '9",
+				"word ‘9",
+			),
+			array(
+				"in '4 years, 3 months,' Obama cut the deficit",
+				"in ‘4 years, 3 months,’ Obama cut the deficit",
+			),
+			array(
+				"testing's '4' through 'quotes'",
+				"testing’s ‘4’ through ‘quotes’",
+			),
+		);
+	}
+}