D20976.diff
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	diff --git a/src/__phutil_library_map__.php b/src/__phutil_library_map__.php
	--- a/src/__phutil_library_map__.php
	+++ b/src/__phutil_library_map__.php
	@@ -64,7 +64,6 @@
	'PhagePlanAction' => 'phage/action/PhagePlanAction.php',
	'Phobject' => 'object/Phobject.php',
	'PhobjectTestCase' => 'object/__tests__/PhobjectTestCase.php',
	- 'PhutilAPCKeyValueCache' => 'cache/PhutilAPCKeyValueCache.php',
	'PhutilAWSCloudFormationFuture' => 'future/aws/PhutilAWSCloudFormationFuture.php',
	'PhutilAWSCloudWatchFuture' => 'future/aws/PhutilAWSCloudWatchFuture.php',
	'PhutilAWSEC2Future' => 'future/aws/PhutilAWSEC2Future.php',
	@@ -133,12 +132,10 @@
	'PhutilConsoleServerChannel' => 'console/PhutilConsoleServerChannel.php',
	'PhutilConsoleSkip' => 'console/view/PhutilConsoleSkip.php',
	'PhutilConsoleStdinNotInteractiveException' => 'console/PhutilConsoleStdinNotInteractiveException.php',
	- 'PhutilConsoleSyntaxHighlighter' => 'markup/syntax/highlighter/PhutilConsoleSyntaxHighlighter.php',
	'PhutilConsoleTable' => 'console/view/PhutilConsoleTable.php',
	'PhutilConsoleView' => 'console/view/PhutilConsoleView.php',
	'PhutilConsoleWarning' => 'console/view/PhutilConsoleWarning.php',
	'PhutilConsoleWrapTestCase' => 'console/__tests__/PhutilConsoleWrapTestCase.php',
	- 'PhutilContextFreeGrammar' => 'grammar/PhutilContextFreeGrammar.php',
	'PhutilCowsay' => 'utils/PhutilCowsay.php',
	'PhutilCowsayTestCase' => 'utils/__tests__/PhutilCowsayTestCase.php',
	'PhutilCsprintfTestCase' => 'xsprintf/__tests__/PhutilCsprintfTestCase.php',
	@@ -149,17 +146,11 @@
	'PhutilDaemonOverseer' => 'daemon/PhutilDaemonOverseer.php',
	'PhutilDaemonOverseerModule' => 'daemon/PhutilDaemonOverseerModule.php',
	'PhutilDaemonPool' => 'daemon/PhutilDaemonPool.php',
	- 'PhutilDefaultSyntaxHighlighter' => 'markup/syntax/highlighter/PhutilDefaultSyntaxHighlighter.php',
	- 'PhutilDefaultSyntaxHighlighterEngine' => 'markup/syntax/engine/PhutilDefaultSyntaxHighlighterEngine.php',
	- 'PhutilDefaultSyntaxHighlighterEnginePygmentsFuture' => 'markup/syntax/highlighter/pygments/PhutilDefaultSyntaxHighlighterEnginePygmentsFuture.php',
	- 'PhutilDefaultSyntaxHighlighterEngineTestCase' => 'markup/syntax/engine/__tests__/PhutilDefaultSyntaxHighlighterEngineTestCase.php',
	'PhutilDeferredLog' => 'filesystem/PhutilDeferredLog.php',
	'PhutilDeferredLogTestCase' => 'filesystem/__tests__/PhutilDeferredLogTestCase.php',
	'PhutilDiffBinaryAnalyzer' => 'filesystem/binary/PhutilDiffBinaryAnalyzer.php',
	'PhutilDirectedScalarGraph' => 'utils/PhutilDirectedScalarGraph.php',
	'PhutilDirectoryFixture' => 'filesystem/PhutilDirectoryFixture.php',
	- 'PhutilDirectoryKeyValueCache' => 'cache/PhutilDirectoryKeyValueCache.php',
	- 'PhutilDivinerSyntaxHighlighter' => 'markup/syntax/highlighter/PhutilDivinerSyntaxHighlighter.php',
	'PhutilDocblockParser' => 'parser/PhutilDocblockParser.php',
	'PhutilDocblockParserTestCase' => 'parser/__tests__/PhutilDocblockParserTestCase.php',
	'PhutilEditDistanceMatrix' => 'utils/PhutilEditDistanceMatrix.php',
	@@ -213,16 +204,13 @@
	'PhutilIPAddressTestCase' => 'ip/__tests__/PhutilIPAddressTestCase.php',
	'PhutilIPv4Address' => 'ip/PhutilIPv4Address.php',
	'PhutilIPv6Address' => 'ip/PhutilIPv6Address.php',
	- 'PhutilInRequestKeyValueCache' => 'cache/PhutilInRequestKeyValueCache.php',
	'PhutilInteractiveEditor' => 'console/PhutilInteractiveEditor.php',
	'PhutilInvalidRuleParserGeneratorException' => 'parser/generator/exception/PhutilInvalidRuleParserGeneratorException.php',
	'PhutilInvalidStateException' => 'exception/PhutilInvalidStateException.php',
	'PhutilInvalidStateExceptionTestCase' => 'exception/__tests__/PhutilInvalidStateExceptionTestCase.php',
	- 'PhutilInvisibleSyntaxHighlighter' => 'markup/syntax/highlighter/PhutilInvisibleSyntaxHighlighter.php',
	'PhutilIrreducibleRuleParserGeneratorException' => 'parser/generator/exception/PhutilIrreducibleRuleParserGeneratorException.php',
	'PhutilJSON' => 'parser/PhutilJSON.php',
	'PhutilJSONFragmentLexer' => 'lexer/PhutilJSONFragmentLexer.php',
	- 'PhutilJSONFragmentLexerHighlighterTestCase' => 'markup/syntax/highlighter/__tests__/PhutilJSONFragmentLexerHighlighterTestCase.php',
	'PhutilJSONParser' => 'parser/PhutilJSONParser.php',
	'PhutilJSONParserException' => 'parser/exception/PhutilJSONParserException.php',
	'PhutilJSONParserTestCase' => 'parser/__tests__/PhutilJSONParserTestCase.php',
	@@ -230,17 +218,10 @@
	'PhutilJSONProtocolChannelTestCase' => 'channel/__tests__/PhutilJSONProtocolChannelTestCase.php',
	'PhutilJSONTestCase' => 'parser/__tests__/PhutilJSONTestCase.php',
	'PhutilJavaFragmentLexer' => 'lexer/PhutilJavaFragmentLexer.php',
	- 'PhutilKeyValueCache' => 'cache/PhutilKeyValueCache.php',
	- 'PhutilKeyValueCacheNamespace' => 'cache/PhutilKeyValueCacheNamespace.php',
	- 'PhutilKeyValueCacheProfiler' => 'cache/PhutilKeyValueCacheProfiler.php',
	- 'PhutilKeyValueCacheProxy' => 'cache/PhutilKeyValueCacheProxy.php',
	- 'PhutilKeyValueCacheStack' => 'cache/PhutilKeyValueCacheStack.php',
	- 'PhutilKeyValueCacheTestCase' => 'cache/__tests__/PhutilKeyValueCacheTestCase.php',
	'PhutilKoreanLocale' => 'internationalization/locales/PhutilKoreanLocale.php',
	'PhutilLanguageGuesser' => 'parser/PhutilLanguageGuesser.php',
	'PhutilLanguageGuesserTestCase' => 'parser/__tests__/PhutilLanguageGuesserTestCase.php',
	'PhutilLexer' => 'lexer/PhutilLexer.php',
	- 'PhutilLexerSyntaxHighlighter' => 'markup/syntax/highlighter/PhutilLexerSyntaxHighlighter.php',
	'PhutilLibraryConflictException' => 'moduleutils/PhutilLibraryConflictException.php',
	'PhutilLibraryMapBuilder' => 'moduleutils/PhutilLibraryMapBuilder.php',
	'PhutilLibraryTestCase' => '__tests__/PhutilLibraryTestCase.php',
	@@ -251,9 +232,6 @@
	'PhutilLogFileChannel' => 'channel/PhutilLogFileChannel.php',
	'PhutilLunarPhase' => 'utils/PhutilLunarPhase.php',
	'PhutilLunarPhaseTestCase' => 'utils/__tests__/PhutilLunarPhaseTestCase.php',
	- 'PhutilMarkupEngine' => 'markup/PhutilMarkupEngine.php',
	- 'PhutilMarkupTestCase' => 'markup/__tests__/PhutilMarkupTestCase.php',
	- 'PhutilMemcacheKeyValueCache' => 'cache/PhutilMemcacheKeyValueCache.php',
	'PhutilMercurialBinaryAnalyzer' => 'filesystem/binary/PhutilMercurialBinaryAnalyzer.php',
	'PhutilMethodNotImplementedException' => 'error/PhutilMethodNotImplementedException.php',
	'PhutilMetricsChannel' => 'channel/PhutilMetricsChannel.php',
	@@ -263,12 +241,10 @@
	'PhutilNumber' => 'internationalization/PhutilNumber.php',
	'PhutilOAuth1Future' => 'future/oauth/PhutilOAuth1Future.php',
	'PhutilOAuth1FutureTestCase' => 'future/oauth/__tests__/PhutilOAuth1FutureTestCase.php',
	- 'PhutilOnDiskKeyValueCache' => 'cache/PhutilOnDiskKeyValueCache.php',
	'PhutilOpaqueEnvelope' => 'error/PhutilOpaqueEnvelope.php',
	'PhutilOpaqueEnvelopeKey' => 'error/PhutilOpaqueEnvelopeKey.php',
	'PhutilOpaqueEnvelopeTestCase' => 'error/__tests__/PhutilOpaqueEnvelopeTestCase.php',
	'PhutilPHPFragmentLexer' => 'lexer/PhutilPHPFragmentLexer.php',
	- 'PhutilPHPFragmentLexerHighlighterTestCase' => 'markup/syntax/highlighter/__tests__/PhutilPHPFragmentLexerHighlighterTestCase.php',
	'PhutilPHPFragmentLexerTestCase' => 'lexer/__tests__/PhutilPHPFragmentLexerTestCase.php',
	'PhutilPHPObjectProtocolChannel' => 'channel/PhutilPHPObjectProtocolChannel.php',
	'PhutilPHPObjectProtocolChannelTestCase' => 'channel/__tests__/PhutilPHPObjectProtocolChannelTestCase.php',
	@@ -293,21 +269,14 @@
	'PhutilProxyException' => 'error/PhutilProxyException.php',
	'PhutilProxyIterator' => 'utils/PhutilProxyIterator.php',
	'PhutilPygmentizeBinaryAnalyzer' => 'filesystem/binary/PhutilPygmentizeBinaryAnalyzer.php',
	- 'PhutilPygmentizeParser' => 'parser/PhutilPygmentizeParser.php',
	- 'PhutilPygmentizeParserTestCase' => 'parser/__tests__/PhutilPygmentizeParserTestCase.php',
	- 'PhutilPygmentsSyntaxHighlighter' => 'markup/syntax/highlighter/PhutilPygmentsSyntaxHighlighter.php',
	'PhutilPythonFragmentLexer' => 'lexer/PhutilPythonFragmentLexer.php',
	'PhutilQueryStringParser' => 'parser/PhutilQueryStringParser.php',
	'PhutilQueryStringParserTestCase' => 'parser/__tests__/PhutilQueryStringParserTestCase.php',
	- 'PhutilRainbowSyntaxHighlighter' => 'markup/syntax/highlighter/PhutilRainbowSyntaxHighlighter.php',
	'PhutilRawEnglishLocale' => 'internationalization/locales/PhutilRawEnglishLocale.php',
	'PhutilReadableSerializer' => 'readableserializer/PhutilReadableSerializer.php',
	'PhutilReadableSerializerTestCase' => 'readableserializer/__tests__/PhutilReadableSerializerTestCase.php',
	'PhutilRope' => 'utils/PhutilRope.php',
	'PhutilRopeTestCase' => 'utils/__tests__/PhutilRopeTestCase.php',
	- 'PhutilSafeHTML' => 'markup/PhutilSafeHTML.php',
	- 'PhutilSafeHTMLProducerInterface' => 'markup/PhutilSafeHTMLProducerInterface.php',
	- 'PhutilSafeHTMLTestCase' => 'markup/__tests__/PhutilSafeHTMLTestCase.php',
	'PhutilSaturateStdoutDaemon' => 'daemon/torture/PhutilSaturateStdoutDaemon.php',
	'PhutilServiceProfiler' => 'serviceprofiler/PhutilServiceProfiler.php',
	'PhutilShellLexer' => 'lexer/PhutilShellLexer.php',
	@@ -323,14 +292,9 @@
	'PhutilSocketChannel' => 'channel/PhutilSocketChannel.php',
	'PhutilSortVector' => 'utils/PhutilSortVector.php',
	'PhutilSpanishSpainLocale' => 'internationalization/locales/PhutilSpanishSpainLocale.php',
	- 'PhutilSprite' => 'sprites/PhutilSprite.php',
	- 'PhutilSpriteSheet' => 'sprites/PhutilSpriteSheet.php',
	'PhutilStreamIterator' => 'utils/PhutilStreamIterator.php',
	'PhutilSubversionBinaryAnalyzer' => 'filesystem/binary/PhutilSubversionBinaryAnalyzer.php',
	'PhutilSymbolLoader' => 'symbols/PhutilSymbolLoader.php',
	- 'PhutilSyntaxHighlighter' => 'markup/syntax/highlighter/PhutilSyntaxHighlighter.php',
	- 'PhutilSyntaxHighlighterEngine' => 'markup/syntax/engine/PhutilSyntaxHighlighterEngine.php',
	- 'PhutilSyntaxHighlighterException' => 'markup/syntax/highlighter/PhutilSyntaxHighlighterException.php',
	'PhutilSystem' => 'utils/PhutilSystem.php',
	'PhutilSystemTestCase' => 'utils/__tests__/PhutilSystemTestCase.php',
	'PhutilTerminalString' => 'xsprintf/PhutilTerminalString.php',
	@@ -362,9 +326,6 @@
	'PhutilVeryWowEnglishLocale' => 'internationalization/locales/PhutilVeryWowEnglishLocale.php',
	'PhutilWordPressFuture' => 'future/wordpress/PhutilWordPressFuture.php',
	'PhutilXHPASTBinary' => 'parser/xhpast/bin/PhutilXHPASTBinary.php',
	- 'PhutilXHPASTSyntaxHighlighter' => 'markup/syntax/highlighter/PhutilXHPASTSyntaxHighlighter.php',
	- 'PhutilXHPASTSyntaxHighlighterFuture' => 'markup/syntax/highlighter/xhpast/PhutilXHPASTSyntaxHighlighterFuture.php',
	- 'PhutilXHPASTSyntaxHighlighterTestCase' => 'markup/syntax/highlighter/__tests__/PhutilXHPASTSyntaxHighlighterTestCase.php',
	'TempFile' => 'filesystem/TempFile.php',
	'TestAbstractDirectedGraph' => 'utils/__tests__/TestAbstractDirectedGraph.php',
	'XHPASTNode' => 'parser/xhpast/api/XHPASTNode.php',
	@@ -390,7 +351,6 @@
	'head' => 'utils/utils.php',
	'head_key' => 'utils/utils.php',
	'hgsprintf' => 'xsprintf/hgsprintf.php',
	- 'hsprintf' => 'markup/render.php',
	'id' => 'utils/utils.php',
	'idx' => 'utils/utils.php',
	'idxv' => 'utils/utils.php',
	@@ -427,10 +387,8 @@
	'phutil_deprecated' => 'moduleutils/moduleutils.php',
	'phutil_describe_type' => 'utils/utils.php',
	'phutil_error_listener_example' => 'error/phlog.php',
	- 'phutil_escape_html' => 'markup/render.php',
	- 'phutil_escape_html_newlines' => 'markup/render.php',
	- 'phutil_escape_uri' => 'markup/render.php',
	- 'phutil_escape_uri_path_component' => 'markup/render.php',
	+ 'phutil_escape_uri' => 'utils/utils.php',
	+ 'phutil_escape_uri_path_component' => 'utils/utils.php',
	'phutil_fnmatch' => 'utils/utils.php',
	'phutil_format_bytes' => 'utils/viewutils.php',
	'phutil_format_relative_time' => 'utils/viewutils.php',
	@@ -445,7 +403,6 @@
	'phutil_get_system_locale' => 'utils/utf8.php',
	'phutil_hashes_are_identical' => 'utils/utils.php',
	'phutil_http_parameter_pair' => 'utils/utils.php',
	- 'phutil_implode_html' => 'markup/render.php',
	'phutil_ini_decode' => 'utils/utils.php',
	'phutil_is_hiphop_runtime' => 'utils/utils.php',
	'phutil_is_natural_list' => 'utils/utils.php',
	@@ -464,13 +421,10 @@
	'phutil_person' => 'internationalization/pht.php',
	'phutil_register_library' => 'moduleutils/core.php',
	'phutil_register_library_map' => 'moduleutils/core.php',
	- 'phutil_safe_html' => 'markup/render.php',
	'phutil_set_system_locale' => 'utils/utf8.php',
	'phutil_split_lines' => 'utils/utils.php',
	'phutil_string_cast' => 'utils/utils.php',
	- 'phutil_tag' => 'markup/render.php',
	- 'phutil_tag_div' => 'markup/render.php',
	- 'phutil_unescape_uri_path_component' => 'markup/render.php',
	+ 'phutil_unescape_uri_path_component' => 'utils/utils.php',
	'phutil_units' => 'utils/utils.php',
	'phutil_utf8_console_strlen' => 'utils/utf8.php',
	'phutil_utf8_convert' => 'utils/utf8.php',
	@@ -576,7 +530,6 @@
	'PhagePlanAction' => 'PhageAction',
	'Phobject' => 'Iterator',
	'PhobjectTestCase' => 'PhutilTestCase',
	- 'PhutilAPCKeyValueCache' => 'PhutilKeyValueCache',
	'PhutilAWSCloudFormationFuture' => 'PhutilAWSFuture',
	'PhutilAWSCloudWatchFuture' => 'PhutilAWSFuture',
	'PhutilAWSEC2Future' => 'PhutilAWSFuture',
	@@ -655,12 +608,10 @@
	'PhutilConsoleServerChannel' => 'PhutilChannelChannel',
	'PhutilConsoleSkip' => 'PhutilConsoleLogLine',
	'PhutilConsoleStdinNotInteractiveException' => 'Exception',
	- 'PhutilConsoleSyntaxHighlighter' => 'Phobject',
	'PhutilConsoleTable' => 'PhutilConsoleView',
	'PhutilConsoleView' => 'Phobject',
	'PhutilConsoleWarning' => 'PhutilConsoleLogLine',
	'PhutilConsoleWrapTestCase' => 'PhutilTestCase',
	- 'PhutilContextFreeGrammar' => 'Phobject',
	'PhutilCowsay' => 'Phobject',
	'PhutilCowsayTestCase' => 'PhutilTestCase',
	'PhutilCsprintfTestCase' => 'PhutilTestCase',
	@@ -671,17 +622,11 @@
	'PhutilDaemonOverseer' => 'Phobject',
	'PhutilDaemonOverseerModule' => 'Phobject',
	'PhutilDaemonPool' => 'Phobject',
	- 'PhutilDefaultSyntaxHighlighter' => 'Phobject',
	- 'PhutilDefaultSyntaxHighlighterEngine' => 'PhutilSyntaxHighlighterEngine',
	- 'PhutilDefaultSyntaxHighlighterEnginePygmentsFuture' => 'FutureProxy',
	- 'PhutilDefaultSyntaxHighlighterEngineTestCase' => 'PhutilTestCase',
	'PhutilDeferredLog' => 'Phobject',
	'PhutilDeferredLogTestCase' => 'PhutilTestCase',
	'PhutilDiffBinaryAnalyzer' => 'PhutilBinaryAnalyzer',
	'PhutilDirectedScalarGraph' => 'AbstractDirectedGraph',
	'PhutilDirectoryFixture' => 'Phobject',
	- 'PhutilDirectoryKeyValueCache' => 'PhutilKeyValueCache',
	- 'PhutilDivinerSyntaxHighlighter' => 'Phobject',
	'PhutilDocblockParser' => 'Phobject',
	'PhutilDocblockParserTestCase' => 'PhutilTestCase',
	'PhutilEditDistanceMatrix' => 'Phobject',
	@@ -738,16 +683,13 @@
	'PhutilIPAddressTestCase' => 'PhutilTestCase',
	'PhutilIPv4Address' => 'PhutilIPAddress',
	'PhutilIPv6Address' => 'PhutilIPAddress',
	- 'PhutilInRequestKeyValueCache' => 'PhutilKeyValueCache',
	'PhutilInteractiveEditor' => 'Phobject',
	'PhutilInvalidRuleParserGeneratorException' => 'PhutilParserGeneratorException',
	'PhutilInvalidStateException' => 'Exception',
	'PhutilInvalidStateExceptionTestCase' => 'PhutilTestCase',
	- 'PhutilInvisibleSyntaxHighlighter' => 'Phobject',
	'PhutilIrreducibleRuleParserGeneratorException' => 'PhutilParserGeneratorException',
	'PhutilJSON' => 'Phobject',
	'PhutilJSONFragmentLexer' => 'PhutilLexer',
	- 'PhutilJSONFragmentLexerHighlighterTestCase' => 'PhutilTestCase',
	'PhutilJSONParser' => 'Phobject',
	'PhutilJSONParserException' => 'Exception',
	'PhutilJSONParserTestCase' => 'PhutilTestCase',
	@@ -755,17 +697,10 @@
	'PhutilJSONProtocolChannelTestCase' => 'PhutilTestCase',
	'PhutilJSONTestCase' => 'PhutilTestCase',
	'PhutilJavaFragmentLexer' => 'PhutilLexer',
	- 'PhutilKeyValueCache' => 'Phobject',
	- 'PhutilKeyValueCacheNamespace' => 'PhutilKeyValueCacheProxy',
	- 'PhutilKeyValueCacheProfiler' => 'PhutilKeyValueCacheProxy',
	- 'PhutilKeyValueCacheProxy' => 'PhutilKeyValueCache',
	- 'PhutilKeyValueCacheStack' => 'PhutilKeyValueCache',
	- 'PhutilKeyValueCacheTestCase' => 'PhutilTestCase',
	'PhutilKoreanLocale' => 'PhutilLocale',
	'PhutilLanguageGuesser' => 'Phobject',
	'PhutilLanguageGuesserTestCase' => 'PhutilTestCase',
	'PhutilLexer' => 'Phobject',
	- 'PhutilLexerSyntaxHighlighter' => 'PhutilSyntaxHighlighter',
	'PhutilLibraryConflictException' => 'Exception',
	'PhutilLibraryMapBuilder' => 'Phobject',
	'PhutilLibraryTestCase' => 'PhutilTestCase',
	@@ -776,9 +711,6 @@
	'PhutilLogFileChannel' => 'PhutilChannelChannel',
	'PhutilLunarPhase' => 'Phobject',
	'PhutilLunarPhaseTestCase' => 'PhutilTestCase',
	- 'PhutilMarkupEngine' => 'Phobject',
	- 'PhutilMarkupTestCase' => 'PhutilTestCase',
	- 'PhutilMemcacheKeyValueCache' => 'PhutilKeyValueCache',
	'PhutilMercurialBinaryAnalyzer' => 'PhutilBinaryAnalyzer',
	'PhutilMethodNotImplementedException' => 'Exception',
	'PhutilMetricsChannel' => 'PhutilChannelChannel',
	@@ -788,12 +720,10 @@
	'PhutilNumber' => 'Phobject',
	'PhutilOAuth1Future' => 'FutureProxy',
	'PhutilOAuth1FutureTestCase' => 'PhutilTestCase',
	- 'PhutilOnDiskKeyValueCache' => 'PhutilKeyValueCache',
	'PhutilOpaqueEnvelope' => 'Phobject',
	'PhutilOpaqueEnvelopeKey' => 'Phobject',
	'PhutilOpaqueEnvelopeTestCase' => 'PhutilTestCase',
	'PhutilPHPFragmentLexer' => 'PhutilLexer',
	- 'PhutilPHPFragmentLexerHighlighterTestCase' => 'PhutilTestCase',
	'PhutilPHPFragmentLexerTestCase' => 'PhutilTestCase',
	'PhutilPHPObjectProtocolChannel' => 'PhutilProtocolChannel',
	'PhutilPHPObjectProtocolChannelTestCase' => 'PhutilTestCase',
	@@ -823,20 +753,14 @@
	'Iterator',
	),
	'PhutilPygmentizeBinaryAnalyzer' => 'PhutilBinaryAnalyzer',
	- 'PhutilPygmentizeParser' => 'Phobject',
	- 'PhutilPygmentizeParserTestCase' => 'PhutilTestCase',
	- 'PhutilPygmentsSyntaxHighlighter' => 'Phobject',
	'PhutilPythonFragmentLexer' => 'PhutilLexer',
	'PhutilQueryStringParser' => 'Phobject',
	'PhutilQueryStringParserTestCase' => 'PhutilTestCase',
	- 'PhutilRainbowSyntaxHighlighter' => 'Phobject',
	'PhutilRawEnglishLocale' => 'PhutilLocale',
	'PhutilReadableSerializer' => 'Phobject',
	'PhutilReadableSerializerTestCase' => 'PhutilTestCase',
	'PhutilRope' => 'Phobject',
	'PhutilRopeTestCase' => 'PhutilTestCase',
	- 'PhutilSafeHTML' => 'Phobject',
	- 'PhutilSafeHTMLTestCase' => 'PhutilTestCase',
	'PhutilSaturateStdoutDaemon' => 'PhutilTortureTestDaemon',
	'PhutilServiceProfiler' => 'Phobject',
	'PhutilShellLexer' => 'PhutilLexer',
	@@ -852,16 +776,11 @@
	'PhutilSocketChannel' => 'PhutilChannel',
	'PhutilSortVector' => 'Phobject',
	'PhutilSpanishSpainLocale' => 'PhutilLocale',
	- 'PhutilSprite' => 'Phobject',
	- 'PhutilSpriteSheet' => 'Phobject',
	'PhutilStreamIterator' => array(
	'Phobject',
	'Iterator',
	),
	'PhutilSubversionBinaryAnalyzer' => 'PhutilBinaryAnalyzer',
	- 'PhutilSyntaxHighlighter' => 'Phobject',
	- 'PhutilSyntaxHighlighterEngine' => 'Phobject',
	- 'PhutilSyntaxHighlighterException' => 'Exception',
	'PhutilSystem' => 'Phobject',
	'PhutilSystemTestCase' => 'PhutilTestCase',
	'PhutilTerminalString' => 'Phobject',
	@@ -893,9 +812,6 @@
	'PhutilVeryWowEnglishLocale' => 'PhutilLocale',
	'PhutilWordPressFuture' => 'FutureProxy',
	'PhutilXHPASTBinary' => 'Phobject',
	- 'PhutilXHPASTSyntaxHighlighter' => 'Phobject',
	- 'PhutilXHPASTSyntaxHighlighterFuture' => 'FutureProxy',
	- 'PhutilXHPASTSyntaxHighlighterTestCase' => 'PhutilTestCase',
	'TempFile' => 'Phobject',
	'TestAbstractDirectedGraph' => 'AbstractDirectedGraph',
	'XHPASTNode' => 'AASTNode',
	diff --git a/src/cache/PhutilAPCKeyValueCache.php b/src/cache/PhutilAPCKeyValueCache.php
	deleted file mode 100644
	--- a/src/cache/PhutilAPCKeyValueCache.php
	+++ /dev/null
	@@ -1,97 +0,0 @@
	-<?php
	-
	-/**
	- * Interface to the APC key-value cache. This is a very high-performance cache
	- * which is local to the current machine.
	- */
	-final class PhutilAPCKeyValueCache extends PhutilKeyValueCache {
	-
	-
	-/* -( Key-Value Cache Implementation )------------------------------------- */
	-
	-
	- public function isAvailable() {
	- return (function_exists('apc_fetch') \|\| function_exists('apcu_fetch')) &&
	- ini_get('apc.enabled') &&
	- (ini_get('apc.enable_cli') \|\| php_sapi_name() != 'cli');
	- }
	-
	- public function getKeys(array $keys, $ttl = null) {
	- static $is_apcu;
	- if ($is_apcu === null) {
	- $is_apcu = self::isAPCu();
	- }
	-
	- $results = array();
	- $fetched = false;
	- foreach ($keys as $key) {
	- if ($is_apcu) {
	- $result = apcu_fetch($key, $fetched);
	- } else {
	- $result = apc_fetch($key, $fetched);
	- }
	-
	- if ($fetched) {
	- $results[$key] = $result;
	- }
	- }
	- return $results;
	- }
	-
	- public function setKeys(array $keys, $ttl = null) {
	- static $is_apcu;
	- if ($is_apcu === null) {
	- $is_apcu = self::isAPCu();
	- }
	-
	- // NOTE: Although modern APC supports passing an array to `apc_store()`,
	- // it is not supported by older version of APC or by HPHP.
	-
	- foreach ($keys as $key => $value) {
	- if ($is_apcu) {
	- apcu_store($key, $value, $ttl);
	- } else {
	- apc_store($key, $value, $ttl);
	- }
	- }
	-
	- return $this;
	- }
	-
	- public function deleteKeys(array $keys) {
	- static $is_apcu;
	- if ($is_apcu === null) {
	- $is_apcu = self::isAPCu();
	- }
	-
	- foreach ($keys as $key) {
	- if ($is_apcu) {
	- apcu_delete($key);
	- } else {
	- apc_delete($key);
	- }
	- }
	-
	- return $this;
	- }
	-
	- public function destroyCache() {
	- static $is_apcu;
	- if ($is_apcu === null) {
	- $is_apcu = self::isAPCu();
	- }
	-
	- if ($is_apcu) {
	- apcu_clear_cache();
	- } else {
	- apc_clear_cache('user');
	- }
	-
	- return $this;
	- }
	-
	- private static function isAPCu() {
	- return function_exists('apcu_fetch');
	- }
	-
	-}
	diff --git a/src/cache/PhutilDirectoryKeyValueCache.php b/src/cache/PhutilDirectoryKeyValueCache.php
	deleted file mode 100644
	--- a/src/cache/PhutilDirectoryKeyValueCache.php
	+++ /dev/null
	@@ -1,244 +0,0 @@
	-<?php
	-
	-/**
	- * Interface to a directory-based disk cache. Storage persists across requests.
	- *
	- * This cache is very very slow, and most suitable for command line scripts
	- * which need to build large caches derived from sources like working copies
	- * (for example, Diviner). This cache performs better for large amounts of
	- * data than @{class:PhutilOnDiskKeyValueCache} because each key is serialized
	- * individually, but this comes at the cost of having even slower reads and
	- * writes.
	- *
	- * In addition to having slow reads and writes, this entire cache locks for
	- * any read or write activity.
	- *
	- * Keys for this cache treat the character "/" specially, and encode it as
	- * a new directory on disk. This can help keep the cache organized and keep the
	- * number of items in any single directory under control, by using keys like
	- * "ab/cd/efghijklmn".
	- *
	- * @task kvimpl Key-Value Cache Implementation
	- * @task storage Cache Storage
	- */
	-final class PhutilDirectoryKeyValueCache extends PhutilKeyValueCache {
	-
	- private $lock;
	- private $cacheDirectory;
	-
	-
	-/* -( Key-Value Cache Implementation )------------------------------------- */
	-
	-
	- public function isAvailable() {
	- return true;
	- }
	-
	-
	- public function getKeys(array $keys) {
	- $this->validateKeys($keys);
	-
	- try {
	- $this->lockCache();
	- } catch (PhutilLockException $ex) {
	- return array();
	- }
	-
	- $now = time();
	-
	- $results = array();
	- foreach ($keys as $key) {
	- $key_file = $this->getKeyFile($key);
	- try {
	- $data = Filesystem::readFile($key_file);
	- } catch (FilesystemException $ex) {
	- continue;
	- }
	-
	- $data = unserialize($data);
	- if (!$data) {
	- continue;
	- }
	-
	- if (isset($data['ttl']) && $data['ttl'] < $now) {
	- continue;
	- }
	-
	- $results[$key] = $data['value'];
	- }
	-
	- $this->unlockCache();
	-
	- return $results;
	- }
	-
	-
	- public function setKeys(array $keys, $ttl = null) {
	- $this->validateKeys(array_keys($keys));
	-
	- $this->lockCache(15);
	-
	- if ($ttl) {
	- $ttl_epoch = time() + $ttl;
	- } else {
	- $ttl_epoch = null;
	- }
	-
	- foreach ($keys as $key => $value) {
	- $dict = array(
	- 'value' => $value,
	- );
	- if ($ttl_epoch) {
	- $dict['ttl'] = $ttl_epoch;
	- }
	-
	- try {
	- $key_file = $this->getKeyFile($key);
	- $key_dir = dirname($key_file);
	- if (!Filesystem::pathExists($key_dir)) {
	- Filesystem::createDirectory(
	- $key_dir,
	- $mask = 0755,
	- $recursive = true);
	- }
	-
	- $new_file = $key_file.'.new';
	- Filesystem::writeFile($new_file, serialize($dict));
	- Filesystem::rename($new_file, $key_file);
	- } catch (FilesystemException $ex) {
	- phlog($ex);
	- }
	- }
	-
	- $this->unlockCache();
	-
	- return $this;
	- }
	-
	-
	- public function deleteKeys(array $keys) {
	- $this->validateKeys($keys);
	-
	- $this->lockCache(15);
	-
	- foreach ($keys as $key) {
	- $path = $this->getKeyFile($key);
	- Filesystem::remove($path);
	-
	- // If removing this key leaves the directory empty, clean it up. Then
	- // clean up any empty parent directories.
	- $path = dirname($path);
	- do {
	- if (!Filesystem::isDescendant($path, $this->getCacheDirectory())) {
	- break;
	- }
	- if (Filesystem::listDirectory($path, true)) {
	- break;
	- }
	- Filesystem::remove($path);
	- $path = dirname($path);
	- } while (true);
	- }
	-
	- $this->unlockCache();
	-
	- return $this;
	- }
	-
	-
	- public function destroyCache() {
	- Filesystem::remove($this->getCacheDirectory());
	- return $this;
	- }
	-
	-
	-/* -( Cache Storage )------------------------------------------------------ */
	-
	-
	- /**
	- * @task storage
	- */
	- public function setCacheDirectory($directory) {
	- $this->cacheDirectory = rtrim($directory, '/').'/';
	- return $this;
	- }
	-
	-
	- /**
	- * @task storage
	- */
	- private function getCacheDirectory() {
	- if (!$this->cacheDirectory) {
	- throw new PhutilInvalidStateException('setCacheDirectory');
	- }
	- return $this->cacheDirectory;
	- }
	-
	-
	- /**
	- * @task storage
	- */
	- private function getKeyFile($key) {
	- // Colon is a drive separator on Windows.
	- $key = str_replace(':', '_', $key);
	-
	- // NOTE: We add ".cache" to each file so we don't get a collision if you
	- // set the keys "a" and "a/b". Without ".cache", the file "a" would need
	- // to be both a file and a directory.
	- return $this->getCacheDirectory().$key.'.cache';
	- }
	-
	-
	- /**
	- * @task storage
	- */
	- private function validateKeys(array $keys) {
	- foreach ($keys as $key) {
	- // NOTE: Use of "." is reserved for ".lock", "key.new" and "key.cache".
	- // Use of "_" is reserved for converting ":".
	- if (!preg_match('@^[a-zA-Z0-9/:-]+$@', $key)) {
	- throw new Exception(
	- pht(
	- "Invalid key '%s': directory caches may only contain letters, ".
	- "numbers, hyphen, colon and slash.",
	- $key));
	- }
	- }
	- }
	-
	-
	- /**
	- * @task storage
	- */
	- private function lockCache($wait = 0) {
	- if ($this->lock) {
	- throw new Exception(
	- pht(
	- 'Trying to %s with a lock!',
	- __FUNCTION__.'()'));
	- }
	-
	- if (!Filesystem::pathExists($this->getCacheDirectory())) {
	- Filesystem::createDirectory($this->getCacheDirectory(), 0755, true);
	- }
	-
	- $lock = PhutilFileLock::newForPath($this->getCacheDirectory().'.lock');
	- $lock->lock($wait);
	-
	- $this->lock = $lock;
	- }
	-
	-
	- /**
	- * @task storage
	- */
	- private function unlockCache() {
	- if (!$this->lock) {
	- throw new PhutilInvalidStateException('lockCache');
	- }
	-
	- $this->lock->unlock();
	- $this->lock = null;
	- }
	-
	-}
	diff --git a/src/cache/PhutilInRequestKeyValueCache.php b/src/cache/PhutilInRequestKeyValueCache.php
	deleted file mode 100644
	--- a/src/cache/PhutilInRequestKeyValueCache.php
	+++ /dev/null
	@@ -1,118 +0,0 @@
	-<?php
	-
	-/**
	- * Key-value cache implemented in the current request. All storage is local
	- * to this request (i.e., the current page) and destroyed after the request
	- * exits. This means the first request to this cache for a given key on a page
	- * will ALWAYS miss.
	- *
	- * This cache exists mostly to support unit tests. In a well-designed
	- * applications, you generally should not be fetching the same data over and
	- * over again in one request, so this cache should be of limited utility.
	- * If using this cache improves application performance, especially if it
	- * improves it significantly, it may indicate an architectural problem in your
	- * application.
	- */
	-final class PhutilInRequestKeyValueCache extends PhutilKeyValueCache {
	-
	- private $cache = array();
	- private $ttl = array();
	- private $limit = 0;
	-
	-
	- /**
	- * Set a limit on the number of keys this cache may contain.
	- *
	- * When too many keys are inserted, the oldest keys are removed from the
	- * cache. Setting a limit of `0` disables the cache.
	- *
	- * @param int Maximum number of items to store in the cache.
	- * @return this
	- */
	- public function setLimit($limit) {
	- $this->limit = $limit;
	- return $this;
	- }
	-
	-
	-/* -( Key-Value Cache Implementation )------------------------------------- */
	-
	-
	- public function isAvailable() {
	- return true;
	- }
	-
	- public function getKeys(array $keys) {
	- $results = array();
	- $now = time();
	- foreach ($keys as $key) {
	- if (!isset($this->cache[$key]) && !array_key_exists($key, $this->cache)) {
	- continue;
	- }
	- if (isset($this->ttl[$key]) && ($this->ttl[$key] < $now)) {
	- continue;
	- }
	- $results[$key] = $this->cache[$key];
	- }
	-
	- return $results;
	- }
	-
	- public function setKeys(array $keys, $ttl = null) {
	-
	- foreach ($keys as $key => $value) {
	- $this->cache[$key] = $value;
	- }
	-
	- if ($ttl) {
	- $end = time() + $ttl;
	- foreach ($keys as $key => $value) {
	- $this->ttl[$key] = $end;
	- }
	- } else {
	- foreach ($keys as $key => $value) {
	- unset($this->ttl[$key]);
	- }
	- }
	-
	- if ($this->limit) {
	- $count = count($this->cache);
	- if ($count > $this->limit) {
	- $remove = array();
	- foreach ($this->cache as $key => $value) {
	- $remove[] = $key;
	-
	- $count--;
	- if ($count <= $this->limit) {
	- break;
	- }
	- }
	-
	- $this->deleteKeys($remove);
	- }
	- }
	-
	- return $this;
	- }
	-
	- public function deleteKeys(array $keys) {
	- foreach ($keys as $key) {
	- unset($this->cache[$key]);
	- unset($this->ttl[$key]);
	- }
	-
	- return $this;
	- }
	-
	- public function getAllKeys() {
	- return $this->cache;
	- }
	-
	- public function destroyCache() {
	- $this->cache = array();
	- $this->ttl = array();
	-
	- return $this;
	- }
	-
	-}
	diff --git a/src/cache/PhutilKeyValueCache.php b/src/cache/PhutilKeyValueCache.php
	deleted file mode 100644
	--- a/src/cache/PhutilKeyValueCache.php
	+++ /dev/null
	@@ -1,121 +0,0 @@
	-<?php
	-
	-/**
	- * Interface to a key-value cache like Memcache or APC. This class provides a
	- * uniform interface to multiple different key-value caches and integration
	- * with PhutilServiceProfiler.
	- *
	- * @task kvimpl Key-Value Cache Implementation
	- */
	-abstract class PhutilKeyValueCache extends Phobject {
	-
	-
	-/* -( Key-Value Cache Implementation )------------------------------------- */
	-
	-
	- /**
	- * Determine if the cache is available. For example, the APC cache tests if
	- * APC is installed. If this method returns false, the cache is not
	- * operational and can not be used.
	- *
	- * @return bool True if the cache can be used.
	- * @task kvimpl
	- */
	- public function isAvailable() {
	- return false;
	- }
	-
	-
	- /**
	- * Get a single key from cache. See @{method:getKeys} to get multiple keys at
	- * once.
	- *
	- * @param string Key to retrieve.
	- * @param wild Optional value to return if the key is not found. By
	- * default, returns null.
	- * @return wild Cache value (on cache hit) or default value (on cache
	- * miss).
	- * @task kvimpl
	- */
	- final public function getKey($key, $default = null) {
	- $map = $this->getKeys(array($key));
	- return idx($map, $key, $default);
	- }
	-
	-
	- /**
	- * Set a single key in cache. See @{method:setKeys} to set multiple keys at
	- * once.
	- *
	- * See @{method:setKeys} for a description of TTLs.
	- *
	- * @param string Key to set.
	- * @param wild Value to set.
	- * @param int\|null Optional TTL.
	- * @return this
	- * @task kvimpl
	- */
	- final public function setKey($key, $value, $ttl = null) {
	- return $this->setKeys(array($key => $value), $ttl);
	- }
	-
	-
	- /**
	- * Delete a key from the cache. See @{method:deleteKeys} to delete multiple
	- * keys at once.
	- *
	- * @param string Key to delete.
	- * @return this
	- * @task kvimpl
	- */
	- final public function deleteKey($key) {
	- return $this->deleteKeys(array($key));
	- }
	-
	-
	- /**
	- * Get data from the cache.
	- *
	- * @param list<string> List of cache keys to retrieve.
	- * @return dict<string, wild> Dictionary of keys that were found in the
	- * cache. Keys not present in the cache are
	- * omitted, so you can detect a cache miss.
	- * @task kvimpl
	- */
	- abstract public function getKeys(array $keys);
	-
	-
	- /**
	- * Put data into the key-value cache.
	- *
	- * With a TTL ("time to live"), the cache will automatically delete the key
	- * after a specified number of seconds. By default, there is no expiration
	- * policy and data will persist in cache indefinitely.
	- *
	- * @param dict<string, wild> Map of cache keys to values.
	- * @param int\|null TTL for cache keys, in seconds.
	- * @return this
	- * @task kvimpl
	- */
	- abstract public function setKeys(array $keys, $ttl = null);
	-
	-
	- /**
	- * Delete a list of keys from the cache.
	- *
	- * @param list<string> List of keys to delete.
	- * @return this
	- * @task kvimpl
	- */
	- abstract public function deleteKeys(array $keys);
	-
	-
	- /**
	- * Completely destroy all data in the cache.
	- *
	- * @return this
	- * @task kvimpl
	- */
	- abstract public function destroyCache();
	-
	-}
	diff --git a/src/cache/PhutilKeyValueCacheNamespace.php b/src/cache/PhutilKeyValueCacheNamespace.php
	deleted file mode 100644
	--- a/src/cache/PhutilKeyValueCacheNamespace.php
	+++ /dev/null
	@@ -1,65 +0,0 @@
	-<?php
	-
	-final class PhutilKeyValueCacheNamespace extends PhutilKeyValueCacheProxy {
	-
	- private $namespace;
	-
	- public function setNamespace($namespace) {
	- if (strpos($namespace, ':') !== false) {
	- throw new Exception(pht("Namespace can't contain colons."));
	- }
	-
	- $this->namespace = $namespace.':';
	-
	- return $this;
	- }
	-
	- public function setKeys(array $keys, $ttl = null) {
	- return parent::setKeys(array_combine(
	- $this->prefixKeys(array_keys($keys)),
	- $keys), $ttl);
	- }
	-
	- public function getKeys(array $keys) {
	- $results = parent::getKeys($this->prefixKeys($keys));
	-
	- if (!$results) {
	- return array();
	- }
	-
	- return array_combine(
	- $this->unprefixKeys(array_keys($results)),
	- $results);
	- }
	-
	- public function deleteKeys(array $keys) {
	- return parent::deleteKeys($this->prefixKeys($keys));
	- }
	-
	- private function prefixKeys(array $keys) {
	- if ($this->namespace == null) {
	- throw new Exception(pht('Namespace not set.'));
	- }
	-
	- $prefixed_keys = array();
	- foreach ($keys as $key) {
	- $prefixed_keys[] = $this->namespace.$key;
	- }
	-
	- return $prefixed_keys;
	- }
	-
	- private function unprefixKeys(array $keys) {
	- if ($this->namespace == null) {
	- throw new Exception(pht('Namespace not set.'));
	- }
	-
	- $unprefixed_keys = array();
	- foreach ($keys as $key) {
	- $unprefixed_keys[] = substr($key, strlen($this->namespace));
	- }
	-
	- return $unprefixed_keys;
	- }
	-
	-}
	diff --git a/src/cache/PhutilKeyValueCacheProfiler.php b/src/cache/PhutilKeyValueCacheProfiler.php
	deleted file mode 100644
	--- a/src/cache/PhutilKeyValueCacheProfiler.php
	+++ /dev/null
	@@ -1,108 +0,0 @@
	-<?php
	-
	-final class PhutilKeyValueCacheProfiler extends PhutilKeyValueCacheProxy {
	-
	- private $profiler;
	- private $name;
	-
	- public function setName($name) {
	- $this->name = $name;
	- return $this;
	- }
	-
	- public function getName() {
	- return $this->name;
	- }
	-
	- /**
	- * Set a profiler for cache operations.
	- *
	- * @param PhutilServiceProfiler Service profiler.
	- * @return this
	- * @task kvimpl
	- */
	- public function setProfiler(PhutilServiceProfiler $profiler) {
	- $this->profiler = $profiler;
	- return $this;
	- }
	-
	-
	- /**
	- * Get the current profiler.
	- *
	- * @return PhutilServiceProfiler\|null Profiler, or null if none is set.
	- * @task kvimpl
	- */
	- public function getProfiler() {
	- return $this->profiler;
	- }
	-
	-
	- public function getKeys(array $keys) {
	- $call_id = null;
	- if ($this->getProfiler()) {
	- $call_id = $this->getProfiler()->beginServiceCall(
	- array(
	- 'type' => 'kvcache-get',
	- 'name' => $this->getName(),
	- 'keys' => $keys,
	- ));
	- }
	-
	- $results = parent::getKeys($keys);
	-
	- if ($call_id !== null) {
	- $this->getProfiler()->endServiceCall(
	- $call_id,
	- array(
	- 'hits' => array_keys($results),
	- ));
	- }
	-
	- return $results;
	- }
	-
	-
	- public function setKeys(array $keys, $ttl = null) {
	- $call_id = null;
	- if ($this->getProfiler()) {
	- $call_id = $this->getProfiler()->beginServiceCall(
	- array(
	- 'type' => 'kvcache-set',
	- 'name' => $this->getName(),
	- 'keys' => array_keys($keys),
	- 'ttl' => $ttl,
	- ));
	- }
	-
	- $result = parent::setKeys($keys, $ttl);
	-
	- if ($call_id !== null) {
	- $this->getProfiler()->endServiceCall($call_id, array());
	- }
	-
	- return $result;
	- }
	-
	-
	- public function deleteKeys(array $keys) {
	- $call_id = null;
	- if ($this->getProfiler()) {
	- $call_id = $this->getProfiler()->beginServiceCall(
	- array(
	- 'type' => 'kvcache-del',
	- 'name' => $this->getName(),
	- 'keys' => $keys,
	- ));
	- }
	-
	- $result = parent::deleteKeys($keys);
	-
	- if ($call_id !== null) {
	- $this->getProfiler()->endServiceCall($call_id, array());
	- }
	-
	- return $result;
	- }
	-
	-}
	diff --git a/src/cache/PhutilKeyValueCacheProxy.php b/src/cache/PhutilKeyValueCacheProxy.php
	deleted file mode 100644
	--- a/src/cache/PhutilKeyValueCacheProxy.php
	+++ /dev/null
	@@ -1,45 +0,0 @@
	-<?php
	-
	-abstract class PhutilKeyValueCacheProxy extends PhutilKeyValueCache {
	-
	- private $proxy;
	-
	- final public function __construct(PhutilKeyValueCache $proxy) {
	- $this->proxy = $proxy;
	- }
	-
	- final protected function getProxy() {
	- return $this->proxy;
	- }
	-
	- public function isAvailable() {
	- return $this->getProxy()->isAvailable();
	- }
	-
	-
	- public function getKeys(array $keys) {
	- return $this->getProxy()->getKeys($keys);
	- }
	-
	-
	- public function setKeys(array $keys, $ttl = null) {
	- return $this->getProxy()->setKeys($keys, $ttl);
	- }
	-
	-
	- public function deleteKeys(array $keys) {
	- return $this->getProxy()->deleteKeys($keys);
	- }
	-
	-
	- public function destroyCache() {
	- return $this->getProxy()->destroyCache();
	- }
	-
	- public function __call($method, array $arguments) {
	- return call_user_func_array(
	- array($this->getProxy(), $method),
	- $arguments);
	- }
	-
	-}
	diff --git a/src/cache/PhutilKeyValueCacheStack.php b/src/cache/PhutilKeyValueCacheStack.php
	deleted file mode 100644
	--- a/src/cache/PhutilKeyValueCacheStack.php
	+++ /dev/null
	@@ -1,131 +0,0 @@
	-<?php
	-
	-/**
	- * Stacks multiple caches on top of each other, with readthrough semantics:
	- *
	- * - For reads, we try each cache in order until we find all the keys.
	- * - For writes, we set the keys in each cache.
	- *
	- * @task config Configuring the Stack
	- */
	-final class PhutilKeyValueCacheStack extends PhutilKeyValueCache {
	-
	-
	- /**
	- * Forward list of caches in the stack (from the nearest cache to the farthest
	- * cache).
	- */
	- private $cachesForward;
	-
	-
	- /**
	- * Backward list of caches in the stack (from the farthest cache to the
	- * nearest cache).
	- */
	- private $cachesBackward;
	-
	-
	- /**
	- * TTL to use for any writes which are side effects of the next read
	- * operation.
	- */
	- private $nextTTL;
	-
	-
	-/* -( Configuring the Stack )---------------------------------------------- */
	-
	-
	- /**
	- * Set the caches which comprise this stack.
	- *
	- * @param list<PhutilKeyValueCache> Ordered list of key-value caches.
	- * @return this
	- * @task config
	- */
	- public function setCaches(array $caches) {
	- assert_instances_of($caches, 'PhutilKeyValueCache');
	- $this->cachesForward = $caches;
	- $this->cachesBackward = array_reverse($caches);
	-
	- return $this;
	- }
	-
	-
	- /**
	- * Set the readthrough TTL for the next cache operation. The TTL applies to
	- * any keys set by the next call to @{method:getKey} or @{method:getKeys},
	- * and is reset after the call finishes.
	- *
	- * // If this causes any caches to fill, they'll fill with a 15-second TTL.
	- * $stack->setNextTTL(15)->getKey('porcupine');
	- *
	- * // TTL does not persist; this will use no TTL.
	- * $stack->getKey('hedgehog');
	- *
	- * @param int TTL in seconds.
	- * @return this
	- *
	- * @task config
	- */
	- public function setNextTTL($ttl) {
	- $this->nextTTL = $ttl;
	- return $this;
	- }
	-
	-
	-/* -( Key-Value Cache Implementation )------------------------------------- */
	-
	-
	- public function getKeys(array $keys) {
	-
	- $remaining = array_fuse($keys);
	- $results = array();
	- $missed = array();
	-
	- try {
	- foreach ($this->cachesForward as $cache) {
	- $result = $cache->getKeys($remaining);
	- $remaining = array_diff_key($remaining, $result);
	- $results += $result;
	- if (!$remaining) {
	- while ($cache = array_pop($missed)) {
	- // TODO: This sets too many results in the closer caches, although
	- // it probably isn't a big deal in most cases; normally we're just
	- // filling the request cache.
	- $cache->setKeys($result, $this->nextTTL);
	- }
	- break;
	- }
	- $missed[] = $cache;
	- }
	- $this->nextTTL = null;
	- } catch (Exception $ex) {
	- $this->nextTTL = null;
	- throw $ex;
	- }
	-
	- return $results;
	- }
	-
	-
	- public function setKeys(array $keys, $ttl = null) {
	- foreach ($this->cachesBackward as $cache) {
	- $cache->setKeys($keys, $ttl);
	- }
	- }
	-
	-
	- public function deleteKeys(array $keys) {
	- foreach ($this->cachesBackward as $cache) {
	- $cache->deleteKeys($keys);
	- }
	- }
	-
	-
	- public function destroyCache() {
	- foreach ($this->cachesBackward as $cache) {
	- $cache->destroyCache();
	- }
	- }
	-
	-}
	diff --git a/src/cache/PhutilMemcacheKeyValueCache.php b/src/cache/PhutilMemcacheKeyValueCache.php
	deleted file mode 100644
	--- a/src/cache/PhutilMemcacheKeyValueCache.php
	+++ /dev/null
	@@ -1,153 +0,0 @@
	-<?php
	-
	-/**
	- * @task memcache Managing Memcache
	- */
	-final class PhutilMemcacheKeyValueCache extends PhutilKeyValueCache {
	-
	- private $servers = array();
	- private $connections = array();
	-
	-
	-/* -( Key-Value Cache Implementation )------------------------------------- */
	-
	-
	- public function isAvailable() {
	- return function_exists('memcache_pconnect');
	- }
	-
	- public function getKeys(array $keys) {
	- $buckets = $this->bucketKeys($keys);
	- $results = array();
	-
	- foreach ($buckets as $bucket => $bucket_keys) {
	- $conn = $this->getConnection($bucket);
	- $result = $conn->get($bucket_keys);
	- if (!$result) {
	- // If the call fails, treat it as a miss on all keys.
	- $result = array();
	- }
	-
	- $results += $result;
	- }
	-
	- return $results;
	- }
	-
	- public function setKeys(array $keys, $ttl = null) {
	- $buckets = $this->bucketKeys(array_keys($keys));
	-
	- // Memcache interprets TTLs as:
	- //
	- // - Seconds from now, for values from 1 to 2592000 (30 days).
	- // - Epoch timestamp, for values larger than 2592000.
	- //
	- // We support only relative TTLs, so convert excessively large relative
	- // TTLs into epoch TTLs.
	- if ($ttl > 2592000) {
	- $effective_ttl = time() + $ttl;
	- } else {
	- $effective_ttl = $ttl;
	- }
	-
	- foreach ($buckets as $bucket => $bucket_keys) {
	- $conn = $this->getConnection($bucket);
	-
	- foreach ($bucket_keys as $key) {
	- $conn->set($key, $keys[$key], 0, $effective_ttl);
	- }
	- }
	-
	- return $this;
	- }
	-
	- public function deleteKeys(array $keys) {
	- $buckets = $this->bucketKeys($keys);
	-
	- foreach ($buckets as $bucket => $bucket_keys) {
	- $conn = $this->getConnection($bucket);
	- foreach ($bucket_keys as $key) {
	- $conn->delete($key);
	- }
	- }
	-
	- return $this;
	- }
	-
	- public function destroyCache() {
	- foreach ($this->servers as $key => $spec) {
	- $this->getConnection($key)->flush();
	- }
	- return $this;
	- }
	-
	-
	-/* -( Managing Memcache )-------------------------------------------------- */
	-
	-
	- /**
	- * Set available memcache servers. For example:
	- *
	- * $cache->setServers(
	- * array(
	- * array(
	- * 'host' => '10.0.0.20',
	- * 'port' => 11211,
	- * ),
	- * array(
	- * 'host' => '10.0.0.21',
	- * 'port' => 11211,
	- * ),
	- * ));
	- *
	- * @param list<dict> List of server specifications.
	- * @return this
	- * @task memcache
	- */
	- public function setServers(array $servers) {
	- $this->servers = array_values($servers);
	- return $this;
	- }
	-
	- private function bucketKeys(array $keys) {
	- $buckets = array();
	- $n = count($this->servers);
	-
	- if (!$n) {
	- throw new PhutilInvalidStateException('setServers');
	- }
	-
	- foreach ($keys as $key) {
	- $bucket = (int)((crc32($key) & 0x7FFFFFFF) % $n);
	- $buckets[$bucket][] = $key;
	- }
	-
	- return $buckets;
	- }
	-
	-
	- /**
	- * @phutil-external-symbol function memcache_pconnect
	- */
	- private function getConnection($server) {
	- if (empty($this->connections[$server])) {
	- $spec = $this->servers[$server];
	- $host = $spec['host'];
	- $port = $spec['port'];
	-
	- $conn = memcache_pconnect($host, $spec['port']);
	-
	- if (!$conn) {
	- throw new Exception(
	- pht(
	- 'Unable to connect to memcache server (%s:%d)!',
	- $host,
	- $port));
	- }
	-
	- $this->connections[$server] = $conn;
	- }
	- return $this->connections[$server];
	- }
	-
	-}
	diff --git a/src/cache/PhutilOnDiskKeyValueCache.php b/src/cache/PhutilOnDiskKeyValueCache.php
	deleted file mode 100644
	--- a/src/cache/PhutilOnDiskKeyValueCache.php
	+++ /dev/null
	@@ -1,205 +0,0 @@
	-<?php
	-
	-/**
	- * Interface to a disk cache. Storage persists across requests.
	- *
	- * This cache is very slow compared to caches like APC. It is intended as a
	- * specialized alternative to APC when APC is not available.
	- *
	- * This is a highly specialized cache and not appropriate for use as a
	- * generalized key-value cache for arbitrary application data.
	- *
	- * Also note that reading and writing keys from the cache currently involves
	- * loading and saving the entire cache, no matter how little data you touch.
	- *
	- * @task kvimpl Key-Value Cache Implementation
	- * @task storage Cache Storage
	- */
	-final class PhutilOnDiskKeyValueCache extends PhutilKeyValueCache {
	-
	- private $cache = array();
	- private $cacheFile;
	- private $lock;
	- private $wait = 0;
	-
	-
	-/* -( Key-Value Cache Implementation )------------------------------------- */
	-
	-
	- public function isAvailable() {
	- return true;
	- }
	-
	-
	- /**
	- * Set duration (in seconds) to wait for the file lock.
	- */
	- public function setWait($wait) {
	- $this->wait = $wait;
	- return $this;
	- }
	-
	- public function getKeys(array $keys) {
	- $now = time();
	-
	- $results = array();
	- $reloaded = false;
	- foreach ($keys as $key) {
	-
	- // Try to read the value from cache. If we miss, load (or reload) the
	- // cache.
	-
	- while (true) {
	- if (isset($this->cache[$key])) {
	- $val = $this->cache[$key];
	- if (empty($val['ttl']) \|\| $val['ttl'] >= $now) {
	- $results[$key] = $val['val'];
	- break;
	- }
	- }
	-
	- if ($reloaded) {
	- break;
	- }
	-
	- $this->loadCache($hold_lock = false);
	- $reloaded = true;
	- }
	- }
	-
	- return $results;
	- }
	-
	-
	- public function setKeys(array $keys, $ttl = null) {
	- if ($ttl) {
	- $ttl_epoch = time() + $ttl;
	- } else {
	- $ttl_epoch = null;
	- }
	-
	- $dicts = array();
	- foreach ($keys as $key => $value) {
	- $dict = array(
	- 'val' => $value,
	- );
	- if ($ttl_epoch) {
	- $dict['ttl'] = $ttl_epoch;
	- }
	- $dicts[$key] = $dict;
	- }
	-
	- $this->loadCache($hold_lock = true);
	- foreach ($dicts as $key => $dict) {
	- $this->cache[$key] = $dict;
	- }
	- $this->saveCache();
	-
	- return $this;
	- }
	-
	-
	- public function deleteKeys(array $keys) {
	- $this->loadCache($hold_lock = true);
	- foreach ($keys as $key) {
	- unset($this->cache[$key]);
	- }
	- $this->saveCache();
	-
	- return $this;
	- }
	-
	-
	- public function destroyCache() {
	- Filesystem::remove($this->getCacheFile());
	- return $this;
	- }
	-
	-
	-/* -( Cache Storage )------------------------------------------------------ */
	-
	-
	- /**
	- * @task storage
	- */
	- public function setCacheFile($file) {
	- $this->cacheFile = $file;
	- return $this;
	- }
	-
	-
	- /**
	- * @task storage
	- */
	- private function loadCache($hold_lock) {
	- if ($this->lock) {
	- throw new Exception(
	- pht(
	- 'Trying to %s with a lock!',
	- __FUNCTION__.'()'));
	- }
	-
	- $lock = PhutilFileLock::newForPath($this->getCacheFile().'.lock');
	- try {
	- $lock->lock($this->wait);
	- } catch (PhutilLockException $ex) {
	- if ($hold_lock) {
	- throw $ex;
	- } else {
	- $this->cache = array();
	- return;
	- }
	- }
	-
	- try {
	- $this->cache = array();
	- if (Filesystem::pathExists($this->getCacheFile())) {
	- $cache = unserialize(Filesystem::readFile($this->getCacheFile()));
	- if ($cache) {
	- $this->cache = $cache;
	- }
	- }
	- } catch (Exception $ex) {
	- $lock->unlock();
	- throw $ex;
	- }
	-
	- if ($hold_lock) {
	- $this->lock = $lock;
	- } else {
	- $lock->unlock();
	- }
	- }
	-
	-
	- /**
	- * @task storage
	- */
	- private function saveCache() {
	- if (!$this->lock) {
	- throw new PhutilInvalidStateException('loadCache');
	- }
	-
	- // We're holding a lock so we're safe to do a write to a well-known file.
	- // Write to the same directory as the cache so the rename won't imply a
	- // copy across volumes.
	- $new = $this->getCacheFile().'.new';
	- Filesystem::writeFile($new, serialize($this->cache));
	- Filesystem::rename($new, $this->getCacheFile());
	-
	- $this->lock->unlock();
	- $this->lock = null;
	- }
	-
	-
	- /**
	- * @task storage
	- */
	- private function getCacheFile() {
	- if (!$this->cacheFile) {
	- throw new PhutilInvalidStateException('setCacheFile');
	- }
	- return $this->cacheFile;
	- }
	-
	-}
	diff --git a/src/cache/__tests__/PhutilKeyValueCacheTestCase.php b/src/cache/__tests__/PhutilKeyValueCacheTestCase.php
	deleted file mode 100644
	--- a/src/cache/__tests__/PhutilKeyValueCacheTestCase.php
	+++ /dev/null
	@@ -1,267 +0,0 @@
	-<?php
	-
	-final class PhutilKeyValueCacheTestCase extends PhutilTestCase {
	-
	- public function testInRequestCache() {
	- $cache = new PhutilInRequestKeyValueCache();
	- $this->doCacheTest($cache);
	- $cache->destroyCache();
	- }
	-
	- public function testInRequestCacheLimit() {
	- $cache = new PhutilInRequestKeyValueCache();
	- $cache->setLimit(4);
	-
	- $cache->setKey(1, 1);
	- $cache->setKey(2, 2);
	- $cache->setKey(3, 3);
	- $cache->setKey(4, 4);
	-
	- $this->assertEqual(
	- array(
	- 1 => 1,
	- 2 => 2,
	- 3 => 3,
	- 4 => 4,
	- ),
	- $cache->getAllKeys());
	-
	-
	- $cache->setKey(5, 5);
	-
	- $this->assertEqual(
	- array(
	- 2 => 2,
	- 3 => 3,
	- 4 => 4,
	- 5 => 5,
	- ),
	- $cache->getAllKeys());
	- }
	-
	- public function testOnDiskCache() {
	- $cache = new PhutilOnDiskKeyValueCache();
	- $cache->setCacheFile(new TempFile());
	- $this->doCacheTest($cache);
	- $cache->destroyCache();
	- }
	-
	- public function testAPCCache() {
	- $cache = new PhutilAPCKeyValueCache();
	- if (!$cache->isAvailable()) {
	- $this->assertSkipped(pht('Cache not available.'));
	- }
	- $this->doCacheTest($cache);
	- }
	-
	- public function testDirectoryCache() {
	- $cache = new PhutilDirectoryKeyValueCache();
	-
	- $dir = Filesystem::createTemporaryDirectory();
	- $cache->setCacheDirectory($dir);
	- $this->doCacheTest($cache);
	- $cache->destroyCache();
	- }
	-
	- public function testDirectoryCacheSpecialDirectoryRules() {
	- $cache = new PhutilDirectoryKeyValueCache();
	-
	- $dir = Filesystem::createTemporaryDirectory();
	- $dir = $dir.'/dircache/';
	- $cache->setCacheDirectory($dir);
	-
	- $cache->setKey('a', 1);
	- $this->assertEqual(true, Filesystem::pathExists($dir.'/a.cache'));
	-
	- $cache->setKey('a/b', 1);
	- $this->assertEqual(true, Filesystem::pathExists($dir.'/a/'));
	- $this->assertEqual(true, Filesystem::pathExists($dir.'/a/b.cache'));
	-
	- $cache->deleteKey('a/b');
	- $this->assertEqual(false, Filesystem::pathExists($dir.'/a/'));
	- $this->assertEqual(false, Filesystem::pathExists($dir.'/a/b.cache'));
	-
	- $cache->destroyCache();
	- $this->assertEqual(false, Filesystem::pathExists($dir));
	- }
	-
	- public function testNamespaceCache() {
	- $namespace = 'namespace'.mt_rand();
	- $in_request_cache = new PhutilInRequestKeyValueCache();
	- $cache = new PhutilKeyValueCacheNamespace($in_request_cache);
	- $cache->setNamespace($namespace);
	-
	- $test_info = get_class($cache);
	- $keys = array(
	- 'key1' => mt_rand(),
	- 'key2' => '',
	- 'key3' => 'Phabricator',
	- );
	- $cache->setKeys($keys);
	- $cached_keys = $in_request_cache->getAllKeys();
	-
	- foreach ($keys as $key => $value) {
	- $cached_key = $namespace.':'.$key;
	-
	- $this->assertTrue(
	- isset($cached_keys[$cached_key]),
	- $test_info);
	-
	- $this->assertEqual(
	- $value,
	- $cached_keys[$cached_key],
	- $test_info);
	- }
	-
	- $cache->destroyCache();
	-
	- $this->doCacheTest($cache);
	- $cache->destroyCache();
	- }
	-
	- public function testCacheStack() {
	- $req_cache = new PhutilInRequestKeyValueCache();
	- $disk_cache = new PhutilOnDiskKeyValueCache();
	- $disk_cache->setCacheFile(new TempFile());
	- $apc_cache = new PhutilAPCKeyValueCache();
	-
	- $stack = array(
	- $req_cache,
	- $disk_cache,
	- );
	-
	- if ($apc_cache->isAvailable()) {
	- $stack[] = $apc_cache;
	- }
	-
	- $cache = new PhutilKeyValueCacheStack();
	- $cache->setCaches($stack);
	-
	- $this->doCacheTest($cache);
	-
	- $disk_cache->destroyCache();
	- $req_cache->destroyCache();
	- }
	-
	- private function doCacheTest(PhutilKeyValueCache $cache) {
	- $key1 = 'test:'.mt_rand();
	- $key2 = 'test:'.mt_rand();
	-
	- $default = 'cache-miss';
	- $value1 = 'cache-hit1';
	- $value2 = 'cache-hit2';
	-
	- $test_info = get_class($cache);
	-
	- // Test that we miss correctly on missing values.
	-
	- $this->assertEqual(
	- $default,
	- $cache->getKey($key1, $default),
	- $test_info);
	- $this->assertEqual(
	- array(
	- ),
	- $cache->getKeys(array($key1, $key2)),
	- $test_info);
	-
	-
	- // Test that we can set individual keys.
	-
	- $cache->setKey($key1, $value1);
	- $this->assertEqual(
	- $value1,
	- $cache->getKey($key1, $default),
	- $test_info);
	- $this->assertEqual(
	- array(
	- $key1 => $value1,
	- ),
	- $cache->getKeys(array($key1, $key2)),
	- $test_info);
	-
	-
	- // Test that we can delete individual keys.
	-
	- $cache->deleteKey($key1);
	-
	- $this->assertEqual(
	- $default,
	- $cache->getKey($key1, $default),
	- $test_info);
	- $this->assertEqual(
	- array(
	- ),
	- $cache->getKeys(array($key1, $key2)),
	- $test_info);
	-
	-
	-
	- // Test that we can set multiple keys.
	-
	- $cache->setKeys(
	- array(
	- $key1 => $value1,
	- $key2 => $value2,
	- ));
	-
	- $this->assertEqual(
	- $value1,
	- $cache->getKey($key1, $default),
	- $test_info);
	- $this->assertEqual(
	- array(
	- $key1 => $value1,
	- $key2 => $value2,
	- ),
	- $cache->getKeys(array($key1, $key2)),
	- $test_info);
	-
	-
	- // Test that we can delete multiple keys.
	-
	- $cache->deleteKeys(array($key1, $key2));
	-
	- $this->assertEqual(
	- $default,
	- $cache->getKey($key1, $default),
	- $test_info);
	- $this->assertEqual(
	- array(
	- ),
	- $cache->getKeys(array($key1, $key2)),
	- $test_info);
	-
	-
	- // NOTE: The TTL tests are necessarily slow (we must sleep() through the
	- // TTLs) and do not work with APC (it does not TTL until the next request)
	- // so they're disabled by default. If you're developing the cache stack,
	- // it may be useful to run them.
	-
	- return;
	-
	- // Test that keys expire when they TTL.
	-
	- $cache->setKey($key1, $value1, 1);
	- $cache->setKey($key2, $value2, 5);
	-
	- $this->assertEqual($value1, $cache->getKey($key1, $default));
	- $this->assertEqual($value2, $cache->getKey($key2, $default));
	-
	- sleep(2);
	-
	- $this->assertEqual($default, $cache->getKey($key1, $default));
	- $this->assertEqual($value2, $cache->getKey($key2, $default));
	-
	-
	- // Test that setting a 0 TTL overwrites a nonzero TTL.
	-
	- $cache->setKey($key1, $value1, 1);
	- $this->assertEqual($value1, $cache->getKey($key1, $default));
	- $cache->setKey($key1, $value1, 0);
	- $this->assertEqual($value1, $cache->getKey($key1, $default));
	- sleep(2);
	- $this->assertEqual($value1, $cache->getKey($key1, $default));
	- }
	-
	-}
	diff --git a/src/grammar/PhutilContextFreeGrammar.php b/src/grammar/PhutilContextFreeGrammar.php
	deleted file mode 100644
	--- a/src/grammar/PhutilContextFreeGrammar.php
	+++ /dev/null
	@@ -1,93 +0,0 @@
	-<?php
	-
	-/**
	- * Generate nonsense test data according to a context-free grammar definition.
	- */
	-abstract class PhutilContextFreeGrammar extends Phobject {
	-
	- private $limit = 65535;
	-
	- abstract protected function getRules();
	-
	- public function generateSeveral($count, $implode = ' ') {
	- $paragraph = array();
	- for ($ii = 0; $ii < $count; $ii++) {
	- $paragraph[$ii] = $this->generate();
	- }
	- return implode($implode, $paragraph);
	- }
	-
	- public function generate() {
	- $count = 0;
	- $rules = $this->getRules();
	- return $this->applyRules('[start]', $count, $rules);
	- }
	-
	- final protected function applyRules($input, &$count, array $rules) {
	- if (++$count > $this->limit) {
	- throw new Exception(pht('Token replacement count exceeded limit!'));
	- }
	-
	- $matches = null;
	- preg_match_all('/(\\[[^\\]]+\\])/', $input, $matches, PREG_OFFSET_CAPTURE);
	-
	- foreach (array_reverse($matches[1]) as $token_spec) {
	- list($token, $offset) = $token_spec;
	- $token_name = substr($token, 1, -1);
	- $options = array();
	-
	- if (($name_end = strpos($token_name, ','))) {
	- $options_parser = new PhutilSimpleOptions();
	- $options = $options_parser->parse($token_name);
	- $token_name = substr($token_name, 0, $name_end);
	- }
	-
	- if (empty($rules[$token_name])) {
	- throw new Exception(pht("Invalid token '%s' in grammar.", $token_name));
	- }
	-
	- $key = array_rand($rules[$token_name]);
	- $replacement = $this->applyRules($rules[$token_name][$key],
	- $count, $rules);
	-
	- if (isset($options['indent'])) {
	- if (is_numeric($options['indent'])) {
	- $replacement = self::strPadLines($replacement, $options['indent']);
	- } else {
	- $replacement = self::strPadLines($replacement);
	- }
	- }
	- if (isset($options['trim'])) {
	- switch ($options['trim']) {
	- case 'left':
	- $replacement = ltrim($replacement);
	- break;
	- case 'right':
	- $replacement = rtrim($replacement);
	- break;
	- default:
	- case 'both':
	- $replacement = trim($replacement);
	- break;
	- }
	- }
	- if (isset($options['block'])) {
	- $replacement = "\n".$replacement."\n";
	- }
	-
	- $input = substr_replace($input, $replacement, $offset, strlen($token));
	- }
	-
	- return $input;
	- }
	-
	- private static function strPadLines($text, $num_spaces = 2) {
	- $text_lines = phutil_split_lines($text);
	- foreach ($text_lines as $linenr => $line) {
	- $text_lines[$linenr] = str_repeat(' ', $num_spaces).$line;
	- }
	-
	- return implode('', $text_lines);
	- }
	-
	-}
	diff --git a/src/internationalization/PhutilTranslator.php b/src/internationalization/PhutilTranslator.php
	--- a/src/internationalization/PhutilTranslator.php
	+++ b/src/internationalization/PhutilTranslator.php
	@@ -72,6 +72,12 @@
	return $this;
	}

	+ /**
	+ * @phutil-external-symbol class PhutilSafeHTML
	+ * @phutil-external-symbol class PhutilSafeHTMLProducerInterface
	+ * @phutil-external-symbol function phutil_escape_html
	+ * @phutil-external-symbol function phutil_safe_html
	+ */
	public function translate($text /* , ... */) {
	$args = func_get_args();

	diff --git a/src/internationalization/__tests__/PhutilTranslatorTestCase.php b/src/internationalization/__tests__/PhutilTranslatorTestCase.php
	--- a/src/internationalization/__tests__/PhutilTranslatorTestCase.php
	+++ b/src/internationalization/__tests__/PhutilTranslatorTestCase.php
	@@ -30,28 +30,6 @@
	$this->assertEqual('1 beer(s)', $translator->translate('%d beer(s)', 1));
	}

	- public function testSingleVariant() {
	- $translator = $this->newTranslator('en_US');
	-
	- // In this translation, we have no alternatives for the first conversion.
	- $translator->setTranslations(
	- array(
	- 'Run the command %s %d time(s).' => array(
	- array(
	- 'Run the command %s once.',
	- 'Run the command %s %d times.',
	- ),
	- ),
	- ));
	-
	- $this->assertEqual(
	- 'Run the command <tt>ls</tt> 123 times.',
	- (string)$translator->translate(
	- 'Run the command %s %d time(s).',
	- hsprintf('<tt>%s</tt>', 'ls'),
	- 123));
	- }
	-
	public function testCzech() {
	$translator = $this->newTranslator('cs_CZ');
	$translator->setTranslations(
	@@ -213,45 +191,6 @@
	}
	}

	- public function testHTMLTranslations() {
	- $string = '%s awoke <strong>suddenly</strong> at %s.';
	- $when = '<4 AM>';
	-
	- $translator = $this->newTranslator('en_US');
	-
	- // When no components are HTML, everything is treated as a string.
	- $who = '<span>Abraham</span>';
	- $translation = $translator->translate(
	- $string,
	- $who,
	- $when);
	- $this->assertEqual(
	- 'string',
	- gettype($translation));
	- $this->assertEqual(
	- '<span>Abraham</span> awoke <strong>suddenly</strong> at <4 AM>.',
	- $translation);
	-
	- // When at least one component is HTML, everything is treated as HTML.
	- $who = phutil_tag('span', array(), 'Abraham');
	- $translation = $translator->translate(
	- $string,
	- $who,
	- $when);
	- $this->assertTrue($translation instanceof PhutilSafeHTML);
	- $this->assertEqual(
	- '<span>Abraham</span> awoke <strong>suddenly</strong> at <4 AM>.',
	- $translation->getHTMLContent());
	-
	- $translation = $translator->translate(
	- $string,
	- $who,
	- new PhutilNumber(1383930802));
	- $this->assertEqual(
	- '<span>Abraham</span> awoke <strong>suddenly</strong> at 1,383,930,802.',
	- $translation->getHTMLContent());
	- }
	-
	private function newTranslator($locale_code) {
	$locale = PhutilLocale::loadLocale($locale_code);
	return id(new PhutilTranslator())
	diff --git a/src/markup/PhutilMarkupEngine.php b/src/markup/PhutilMarkupEngine.php
	deleted file mode 100644
	--- a/src/markup/PhutilMarkupEngine.php
	+++ /dev/null
	@@ -1,32 +0,0 @@
	-<?php
	-
	-abstract class PhutilMarkupEngine extends Phobject {
	-
	- /**
	- * Set a configuration parameter which the engine can read to customize how
	- * the text is marked up. This is a generic interface; consult the
	- * documentation for specific rules and blocks for what options are available
	- * for configuration.
	- *
	- * @param string Key to set in the configuration dictionary.
	- * @param string Value to set.
	- * @return this
	- */
	- abstract public function setConfig($key, $value);
	-
	- /**
	- * After text has been marked up with @{method:markupText}, you can retrieve
	- * any metadata the markup process generated by calling this method. This is
	- * a generic interface that allows rules to export extra information about
	- * text; consult the documentation for specific rules and blocks to see what
	- * metadata may be available in your configuration.
	- *
	- * @param string Key to retrieve from metadata.
	- * @param mixed Default value to return if the key is not available.
	- * @return mixed Metadata property, or default value.
	- */
	- abstract public function getTextMetadata($key, $default = null);
	-
	- abstract public function markupText($text);
	-
	-}
	diff --git a/src/markup/PhutilSafeHTML.php b/src/markup/PhutilSafeHTML.php
	deleted file mode 100644
	--- a/src/markup/PhutilSafeHTML.php
	+++ /dev/null
	@@ -1,44 +0,0 @@
	-<?php
	-
	-final class PhutilSafeHTML extends Phobject {
	-
	- private $content;
	-
	- public function __construct($content) {
	- $this->content = (string)$content;
	- }
	-
	- public function __toString() {
	- return $this->content;
	- }
	-
	- public function getHTMLContent() {
	- return $this->content;
	- }
	-
	- public function appendHTML($html /* , ... */) {
	- foreach (func_get_args() as $html) {
	- $this->content .= phutil_escape_html($html);
	- }
	- return $this;
	- }
	-
	- public static function applyFunction($function, $string /* , ... */) {
	- $args = func_get_args();
	- array_shift($args);
	- $args = array_map('phutil_escape_html', $args);
	- return new PhutilSafeHTML(call_user_func_array($function, $args));
	- }
	-
	-// Requires http://pecl.php.net/operator.
	-
	- public function __concat($html) {
	- $clone = clone $this;
	- return $clone->appendHTML($html);
	- }
	-
	- public function __assign_concat($html) {
	- return $this->appendHTML($html);
	- }
	-
	-}
	diff --git a/src/markup/PhutilSafeHTMLProducerInterface.php b/src/markup/PhutilSafeHTMLProducerInterface.php
	deleted file mode 100644
	--- a/src/markup/PhutilSafeHTMLProducerInterface.php
	+++ /dev/null
	@@ -1,12 +0,0 @@
	-<?php
	-
	-/**
	- * Implement this interface to mark an object as capable of producing a
	- * PhutilSafeHTML representation. This is primarily useful for building
	- * renderable HTML views.
	- */
	-interface PhutilSafeHTMLProducerInterface {
	-
	- public function producePhutilSafeHTML();
	-
	-}
	diff --git a/src/markup/__tests__/PhutilMarkupTestCase.php b/src/markup/__tests__/PhutilMarkupTestCase.php
	deleted file mode 100644
	--- a/src/markup/__tests__/PhutilMarkupTestCase.php
	+++ /dev/null
	@@ -1,223 +0,0 @@
	-<?php
	-
	-final class PhutilMarkupTestCase extends PhutilTestCase {
	-
	- public function testTagDefaults() {
	- $this->assertEqual(
	- (string)phutil_tag('br'),
	- (string)phutil_tag('br', array()));
	-
	- $this->assertEqual(
	- (string)phutil_tag('br', array()),
	- (string)phutil_tag('br', array(), null));
	- }
	-
	- public function testTagEmpty() {
	- $this->assertEqual(
	- '<br />',
	- (string)phutil_tag('br', array(), null));
	-
	- $this->assertEqual(
	- '<div></div>',
	- (string)phutil_tag('div', array(), null));
	-
	- $this->assertEqual(
	- '<div></div>',
	- (string)phutil_tag('div', array(), ''));
	- }
	-
	- public function testTagBasics() {
	- $this->assertEqual(
	- '<br />',
	- (string)phutil_tag('br'));
	-
	- $this->assertEqual(
	- '<div>y</div>',
	- (string)phutil_tag('div', array(), 'y'));
	- }
	-
	- public function testTagAttributes() {
	- $this->assertEqual(
	- '<div u="v">y</div>',
	- (string)phutil_tag('div', array('u' => 'v'), 'y'));
	-
	- $this->assertEqual(
	- '<br u="v" />',
	- (string)phutil_tag('br', array('u' => 'v')));
	- }
	-
	- public function testTagEscapes() {
	- $this->assertEqual(
	- '<br u="<" />',
	- (string)phutil_tag('br', array('u' => '<')));
	-
	- $this->assertEqual(
	- '<div><br /></div>',
	- (string)phutil_tag('div', array(), phutil_tag('br')));
	- }
	-
	- public function testTagNullAttribute() {
	- $this->assertEqual(
	- '<br />',
	- (string)phutil_tag('br', array('y' => null)));
	- }
	-
	- public function testTagJavascriptProtocolRejection() {
	- $hrefs = array(
	- 'javascript:alert(1)' => true,
	- 'JAVASCRIPT:alert(2)' => true,
	-
	- // NOTE: When interpreted as a URI, this is dropped because of leading
	- // whitespace.
	- ' javascript:alert(3)' => array(true, false),
	- '/' => false,
	- '/path/to/stuff/' => false,
	- '' => false,
	- 'http://example.com/' => false,
	- '#' => false,
	- 'javascript://anything' => true,
	-
	- // Chrome 33 and IE11, at a minimum, treat this as Javascript.
	- "javascript\n:alert(4)" => true,
	-
	- // Opera currently accepts a variety of unicode spaces. This test case
	- // has a smattering of them.
	- "\xE2\x80\x89javascript:" => true,
	- "javascript\xE2\x80\x89:" => true,
	- "\xE2\x80\x84javascript:" => true,
	- "javascript\xE2\x80\x84:" => true,
	-
	- // Because we're aggressive, all of unicode should trigger detection
	- // by default.
	- "\xE2\x98\x83javascript:" => true,
	- "javascript\xE2\x98\x83:" => true,
	- "\xE2\x98\x83javascript\xE2\x98\x83:" => true,
	-
	- // We're aggressive about this, so we'll intentionally raise false
	- // positives in these cases.
	- 'javascript~:alert(5)' => true,
	- '!!!javascript!!!!:alert(6)' => true,
	-
	- // However, we should raise true negatives in these slightly more
	- // reasonable cases.
	- 'javascript/:docs.html' => false,
	- 'javascripts:x.png' => false,
	- 'COOLjavascript:page' => false,
	- '/javascript:alert(1)' => false,
	- );
	-
	- foreach (array(true, false) as $use_uri) {
	- foreach ($hrefs as $href => $expect) {
	- if (is_array($expect)) {
	- $expect = ($use_uri ? $expect[1] : $expect[0]);
	- }
	-
	- if ($use_uri) {
	- $href_value = new PhutilURI($href);
	- } else {
	- $href_value = $href;
	- }
	-
	- $caught = null;
	- try {
	- phutil_tag('a', array('href' => $href_value), 'click for candy');
	- } catch (Exception $ex) {
	- $caught = $ex;
	- }
	-
	- $desc = pht(
	- 'Unexpected result for "%s". <uri = %s, expect exception = %s>',
	- $href,
	- $use_uri ? pht('Yes') : pht('No'),
	- $expect ? pht('Yes') : pht('No'));
	-
	- $this->assertEqual(
	- $expect,
	- $caught instanceof Exception,
	- $desc);
	- }
	- }
	- }
	-
	- public function testURIEscape() {
	- $this->assertEqual(
	- '%2B/%20%3F%23%26%3A%21xyz%25',
	- phutil_escape_uri('+/ ?#&:!xyz%'));
	- }
	-
	- public function testURIPathComponentEscape() {
	- $this->assertEqual(
	- 'a%252Fb',
	- phutil_escape_uri_path_component('a/b'));
	-
	- $str = '';
	- for ($ii = 0; $ii <= 255; $ii++) {
	- $str .= chr($ii);
	- }
	-
	- $this->assertEqual(
	- $str,
	- phutil_unescape_uri_path_component(
	- rawurldecode( // Simulates webserver.
	- phutil_escape_uri_path_component($str))));
	- }
	-
	- public function testHsprintf() {
	- $this->assertEqual(
	- '<div><3</div>',
	- (string)hsprintf('<div>%s</div>', '<3'));
	- }
	-
	- public function testAppendHTML() {
	- $html = phutil_tag('hr');
	- $html->appendHTML(phutil_tag('br'), '<evil>');
	- $this->assertEqual('<hr /><br /><evil>', $html->getHTMLContent());
	- }
	-
	- public function testArrayEscaping() {
	- $this->assertEqual(
	- '<div><div></div>',
	- phutil_escape_html(
	- array(
	- hsprintf('<div>'),
	- array(
	- array(
	- '<',
	- array(
	- 'd',
	- array(
	- array(
	- hsprintf('i'),
	- ),
	- 'v',
	- ),
	- ),
	- array(
	- array(
	- '>',
	- ),
	- ),
	- ),
	- ),
	- hsprintf('</div>'),
	- )));
	-
	- $this->assertEqual(
	- '<div><br /><hr /><wbr /></div>',
	- phutil_tag(
	- 'div',
	- array(),
	- array(
	- array(
	- array(
	- phutil_tag('br'),
	- array(
	- phutil_tag('hr'),
	- ),
	- phutil_tag('wbr'),
	- ),
	- ),
	- ))->getHTMLContent());
	- }
	-
	-}
	diff --git a/src/markup/__tests__/PhutilSafeHTMLTestCase.php b/src/markup/__tests__/PhutilSafeHTMLTestCase.php
	deleted file mode 100644
	--- a/src/markup/__tests__/PhutilSafeHTMLTestCase.php
	+++ /dev/null
	@@ -1,19 +0,0 @@
	-<?php
	-
	-final class PhutilSafeHTMLTestCase extends PhutilTestCase {
	-
	- public function testOperator() {
	- if (!extension_loaded('operator')) {
	- $this->assertSkipped(pht('Operator extension not available.'));
	- }
	-
	- $a = phutil_tag('a');
	- $ab = $a.phutil_tag('b');
	- $this->assertEqual('<a></a><b></b>', $ab->getHTMLContent());
	- $this->assertEqual('<a></a>', $a->getHTMLContent());
	-
	- $a .= phutil_tag('a');
	- $this->assertEqual('<a></a><a></a>', $a->getHTMLContent());
	- }
	-
	-}
	diff --git a/src/markup/render.php b/src/markup/render.php
	deleted file mode 100644
	--- a/src/markup/render.php
	+++ /dev/null
	@@ -1,251 +0,0 @@
	-<?php
	-
	-/**
	- * Render an HTML tag in a way that treats user content as unsafe by default.
	- *
	- * Tag rendering has some special logic which implements security features:
	- *
	- * - When rendering `<a>` tags, if the `rel` attribute is not specified, it
	- * is interpreted as `rel="noreferrer"`.
	- * - When rendering `<a>` tags, the `href` attribute may not begin with
	- * `javascript:`.
	- *
	- * These special cases can not be disabled.
	- *
	- * IMPORTANT: The `$tag` attribute and the keys of the `$attributes` array are
	- * trusted blindly, and not escaped. You should not pass user data in these
	- * parameters.
	- *
	- * @param string The name of the tag, like `a` or `div`.
	- * @param map<string, string> A map of tag attributes.
	- * @param wild Content to put in the tag.
	- * @return PhutilSafeHTML Tag object.
	- */
	-function phutil_tag($tag, array $attributes = array(), $content = null) {
	- // If the `href` attribute is present, make sure it is not a "javascript:"
	- // URI. We never permit these.
	- if (!empty($attributes['href'])) {
	- // This might be a URI object, so cast it to a string.
	- $href = (string)$attributes['href'];
	-
	- if (isset($href[0])) {
	- // Block 'javascript:' hrefs at the tag level: no well-designed
	- // application should ever use them, and they are a potent attack vector.
	-
	- // This function is deep in the core and performance sensitive, so we're
	- // doing a cheap version of this test first to avoid calling preg_match()
	- // on URIs which begin with '/' or `#`. These cover essentially all URIs
	- // in Phabricator.
	- if (($href[0] !== '/') && ($href[0] !== '#')) {
	- // Chrome 33 and IE 11 both interpret "javascript\n:" as a Javascript
	- // URI, and all browsers interpret " javascript:" as a Javascript URI,
	- // so be aggressive about looking for "javascript:" in the initial
	- // section of the string.
	-
	- $normalized_href = preg_replace('([^a-z0-9/:]+)i', '', $href);
	- if (preg_match('/^javascript:/i', $normalized_href)) {
	- throw new Exception(
	- pht(
	- "Attempting to render a tag with an '%s' attribute that begins ".
	- "with '%s'. This is either a serious security concern or a ".
	- "serious architecture concern. Seek urgent remedy.",
	- 'href',
	- 'javascript:'));
	- }
	- }
	- }
	- }
	-
	- // For tags which can't self-close, treat null as the empty string -- for
	- // example, always render `<div></div>`, never `<div />`.
	- static $self_closing_tags = array(
	- 'area' => true,
	- 'base' => true,
	- 'br' => true,
	- 'col' => true,
	- 'command' => true,
	- 'embed' => true,
	- 'frame' => true,
	- 'hr' => true,
	- 'img' => true,
	- 'input' => true,
	- 'keygen' => true,
	- 'link' => true,
	- 'meta' => true,
	- 'param' => true,
	- 'source' => true,
	- 'track' => true,
	- 'wbr' => true,
	- );
	-
	- $attr_string = '';
	- foreach ($attributes as $k => $v) {
	- if ($v === null) {
	- continue;
	- }
	- $v = phutil_escape_html($v);
	- $attr_string .= ' '.$k.'="'.$v.'"';
	- }
	-
	- if ($content === null) {
	- if (isset($self_closing_tags[$tag])) {
	- return new PhutilSafeHTML('<'.$tag.$attr_string.' />');
	- } else {
	- $content = '';
	- }
	- } else {
	- $content = phutil_escape_html($content);
	- }
	-
	- return new PhutilSafeHTML('<'.$tag.$attr_string.'>'.$content.'</'.$tag.'>');
	-}
	-
	-function phutil_tag_div($class, $content = null) {
	- return phutil_tag('div', array('class' => $class), $content);
	-}
	-
	-function phutil_escape_html($string) {
	- if ($string instanceof PhutilSafeHTML) {
	- return $string;
	- } else if ($string instanceof PhutilSafeHTMLProducerInterface) {
	- $result = $string->producePhutilSafeHTML();
	- if ($result instanceof PhutilSafeHTML) {
	- return phutil_escape_html($result);
	- } else if (is_array($result)) {
	- return phutil_escape_html($result);
	- } else if ($result instanceof PhutilSafeHTMLProducerInterface) {
	- return phutil_escape_html($result);
	- } else {
	- try {
	- assert_stringlike($result);
	- return phutil_escape_html((string)$result);
	- } catch (Exception $ex) {
	- throw new Exception(
	- pht(
	- "Object (of class '%s') implements %s but did not return anything ".
	- "renderable from %s.",
	- get_class($string),
	- 'PhutilSafeHTMLProducerInterface',
	- 'producePhutilSafeHTML()'));
	- }
	- }
	- } else if (is_array($string)) {
	- $result = '';
	- foreach ($string as $item) {
	- $result .= phutil_escape_html($item);
	- }
	- return $result;
	- }
	-
	- return htmlspecialchars($string, ENT_QUOTES, 'UTF-8');
	-}
	-
	-function phutil_escape_html_newlines($string) {
	- return PhutilSafeHTML::applyFunction('nl2br', $string);
	-}
	-
	-/**
	- * Mark string as safe for use in HTML.
	- */
	-function phutil_safe_html($string) {
	- if ($string == '') {
	- return $string;
	- } else if ($string instanceof PhutilSafeHTML) {
	- return $string;
	- } else {
	- return new PhutilSafeHTML($string);
	- }
	-}
	-
	-/**
	- * HTML safe version of `implode()`.
	- */
	-function phutil_implode_html($glue, array $pieces) {
	- $glue = phutil_escape_html($glue);
	-
	- foreach ($pieces as $k => $piece) {
	- $pieces[$k] = phutil_escape_html($piece);
	- }
	-
	- return phutil_safe_html(implode($glue, $pieces));
	-}
	-
	-/**
	- * Format a HTML code. This function behaves like `sprintf()`, except that all
	- * the normal conversions (like %s) will be properly escaped.
	- */
	-function hsprintf($html /* , ... */) {
	- $args = func_get_args();
	- array_shift($args);
	- return new PhutilSafeHTML(
	- vsprintf($html, array_map('phutil_escape_html', $args)));
	-}
	-
	-
	-/**
	- * Escape text for inclusion in a URI or a query parameter. Note that this
	- * method does NOT escape '/', because "%2F" is invalid in paths and Apache
	- * will automatically 404 the page if it's present. This will produce correct
	- * (the URIs will work) and desirable (the URIs will be readable) behavior in
	- * these cases:
	- *
	- * '/path/?param='.phutil_escape_uri($string); # OK: Query Parameter
	- * '/path/to/'.phutil_escape_uri($string); # OK: URI Suffix
	- *
	- * It will potentially produce the WRONG behavior in this special case:
	- *
	- * COUNTEREXAMPLE
	- * '/path/to/'.phutil_escape_uri($string).'/thing/'; # BAD: URI Infix
	- *
	- * In this case, any '/' characters in the string will not be escaped, so you
	- * will not be able to distinguish between the string and the suffix (unless
	- * you have more information, like you know the format of the suffix). For infix
	- * URI components, use @{function:phutil_escape_uri_path_component} instead.
	- *
	- * @param string Some string.
	- * @return string URI encoded string, except for '/'.
	- */
	-function phutil_escape_uri($string) {
	- return str_replace('%2F', '/', rawurlencode($string));
	-}
	-
	-
	-/**
	- * Escape text for inclusion as an infix URI substring. See discussion at
	- * @{function:phutil_escape_uri}. This function covers an unusual special case;
	- * @{function:phutil_escape_uri} is usually the correct function to use.
	- *
	- * This function will escape a string into a format which is safe to put into
	- * a URI path and which does not contain '/' so it can be correctly parsed when
	- * embedded as a URI infix component.
	- *
	- * However, you MUST decode the string with
	- * @{function:phutil_unescape_uri_path_component} before it can be used in the
	- * application.
	- *
	- * @param string Some string.
	- * @return string URI encoded string that is safe for infix composition.
	- */
	-function phutil_escape_uri_path_component($string) {
	- return rawurlencode(rawurlencode($string));
	-}
	-
	-
	-/**
	- * Unescape text that was escaped by
	- * @{function:phutil_escape_uri_path_component}. See
	- * @{function:phutil_escape_uri} for discussion.
	- *
	- * Note that this function is NOT the inverse of
	- * @{function:phutil_escape_uri_path_component}! It undoes additional escaping
	- * which is added to survive the implied unescaping performed by the webserver
	- * when interpreting the request.
	- *
	- * @param string Some string emitted
	- * from @{function:phutil_escape_uri_path_component} and
	- * then accessed via a web server.
	- * @return string Original string.
	- */
	-function phutil_unescape_uri_path_component($string) {
	- return rawurldecode($string);
	-}
	diff --git a/src/markup/syntax/engine/PhutilDefaultSyntaxHighlighterEngine.php b/src/markup/syntax/engine/PhutilDefaultSyntaxHighlighterEngine.php
	deleted file mode 100644
	--- a/src/markup/syntax/engine/PhutilDefaultSyntaxHighlighterEngine.php
	+++ /dev/null
	@@ -1,115 +0,0 @@
	-<?php
	-
	-final class PhutilDefaultSyntaxHighlighterEngine
	- extends PhutilSyntaxHighlighterEngine {
	-
	- private $config = array();
	-
	- public function setConfig($key, $value) {
	- $this->config[$key] = $value;
	- return $this;
	- }
	-
	- public function getLanguageFromFilename($filename) {
	- static $default_map = array(
	- // All files which have file extensions that we haven't already matched
	- // map to their extensions.
	- '@\\.([^./]+)$@' => 1,
	- );
	-
	- $maps = array();
	- if (!empty($this->config['filename.map'])) {
	- $maps[] = $this->config['filename.map'];
	- }
	- $maps[] = $default_map;
	-
	- foreach ($maps as $map) {
	- foreach ($map as $regexp => $lang) {
	- $matches = null;
	- if (preg_match($regexp, $filename, $matches)) {
	- if (is_numeric($lang)) {
	- return idx($matches, $lang);
	- } else {
	- return $lang;
	- }
	- }
	- }
	- }
	-
	- return null;
	- }
	-
	- public function getHighlightFuture($language, $source) {
	- if ($language === null) {
	- $language = PhutilLanguageGuesser::guessLanguage($source);
	- }
	-
	- $have_pygments = !empty($this->config['pygments.enabled']);
	-
	- if ($language == 'php' && PhutilXHPASTBinary::isAvailable()) {
	- return id(new PhutilXHPASTSyntaxHighlighter())
	- ->getHighlightFuture($source);
	- }
	-
	- if ($language == 'console') {
	- return id(new PhutilConsoleSyntaxHighlighter())
	- ->getHighlightFuture($source);
	- }
	-
	- if ($language == 'diviner' \|\| $language == 'remarkup') {
	- return id(new PhutilDivinerSyntaxHighlighter())
	- ->getHighlightFuture($source);
	- }
	-
	- if ($language == 'rainbow') {
	- return id(new PhutilRainbowSyntaxHighlighter())
	- ->getHighlightFuture($source);
	- }
	-
	- if ($language == 'php') {
	- return id(new PhutilLexerSyntaxHighlighter())
	- ->setConfig('lexer', new PhutilPHPFragmentLexer())
	- ->setConfig('language', 'php')
	- ->getHighlightFuture($source);
	- }
	-
	- if ($language == 'py' \|\| $language == 'python') {
	- return id(new PhutilLexerSyntaxHighlighter())
	- ->setConfig('lexer', new PhutilPythonFragmentLexer())
	- ->setConfig('language', 'py')
	- ->getHighlightFuture($source);
	- }
	-
	- if ($language == 'java') {
	- return id(new PhutilLexerSyntaxHighlighter())
	- ->setConfig('lexer', new PhutilJavaFragmentLexer())
	- ->setConfig('language', 'java')
	- ->getHighlightFuture($source);
	- }
	-
	- if ($language == 'json') {
	- return id(new PhutilLexerSyntaxHighlighter())
	- ->setConfig('lexer', new PhutilJSONFragmentLexer())
	- ->getHighlightFuture($source);
	- }
	-
	- if ($language == 'invisible') {
	- return id(new PhutilInvisibleSyntaxHighlighter())
	- ->getHighlightFuture($source);
	- }
	-
	- // Don't invoke Pygments for plain text, since it's expensive and has
	- // no effect.
	- if ($language !== 'text' && $language !== 'txt') {
	- if ($have_pygments) {
	- return id(new PhutilPygmentsSyntaxHighlighter())
	- ->setConfig('language', $language)
	- ->getHighlightFuture($source);
	- }
	- }
	-
	- return id(new PhutilDefaultSyntaxHighlighter())
	- ->getHighlightFuture($source);
	- }
	-
	-}
	diff --git a/src/markup/syntax/engine/PhutilSyntaxHighlighterEngine.php b/src/markup/syntax/engine/PhutilSyntaxHighlighterEngine.php
	deleted file mode 100644
	--- a/src/markup/syntax/engine/PhutilSyntaxHighlighterEngine.php
	+++ /dev/null
	@@ -1,19 +0,0 @@
	-<?php
	-
	-abstract class PhutilSyntaxHighlighterEngine extends Phobject {
	-
	- abstract public function setConfig($key, $value);
	- abstract public function getHighlightFuture($language, $source);
	- abstract public function getLanguageFromFilename($filename);
	-
	- final public function highlightSource($language, $source) {
	- try {
	- return $this->getHighlightFuture($language, $source)->resolve();
	- } catch (PhutilSyntaxHighlighterException $ex) {
	- return id(new PhutilDefaultSyntaxHighlighter())
	- ->getHighlightFuture($source)
	- ->resolve();
	- }
	- }
	-
	-}
	diff --git a/src/markup/syntax/engine/__tests__/PhutilDefaultSyntaxHighlighterEngineTestCase.php b/src/markup/syntax/engine/__tests__/PhutilDefaultSyntaxHighlighterEngineTestCase.php
	deleted file mode 100644
	--- a/src/markup/syntax/engine/__tests__/PhutilDefaultSyntaxHighlighterEngineTestCase.php
	+++ /dev/null
	@@ -1,28 +0,0 @@
	-<?php
	-
	-/**
	- * Test cases for @{class:PhutilDefaultSyntaxHighlighterEngine}.
	- */
	-final class PhutilDefaultSyntaxHighlighterEngineTestCase
	- extends PhutilTestCase {
	-
	- public function testFilenameGreediness() {
	- $names = array(
	- 'x.php' => 'php',
	- '/x.php' => 'php',
	- 'x.y.php' => 'php',
	- '/x.y/z.php' => 'php',
	- '/x.php/' => null,
	- );
	-
	- $engine = new PhutilDefaultSyntaxHighlighterEngine();
	- foreach ($names as $path => $language) {
	- $detect = $engine->getLanguageFromFilename($path);
	- $this->assertEqual(
	- $language,
	- $detect,
	- pht('Language detect for %s', $path));
	- }
	- }
	-
	-}
	diff --git a/src/markup/syntax/highlighter/PhutilConsoleSyntaxHighlighter.php b/src/markup/syntax/highlighter/PhutilConsoleSyntaxHighlighter.php
	deleted file mode 100644
	--- a/src/markup/syntax/highlighter/PhutilConsoleSyntaxHighlighter.php
	+++ /dev/null
	@@ -1,51 +0,0 @@
	-<?php
	-
	-/**
	- * Simple syntax highlighter for console output. We just try to highlight the
	- * commands so it's easier to follow transcripts.
	- */
	-final class PhutilConsoleSyntaxHighlighter extends Phobject {
	-
	- private $config = array();
	-
	- public function setConfig($key, $value) {
	- $this->config[$key] = $value;
	- return $this;
	- }
	-
	- public function getHighlightFuture($source) {
	- $in_command = false;
	- $lines = explode("\n", $source);
	- foreach ($lines as $key => $line) {
	- $matches = null;
	-
	- // Parse commands like this:
	- //
	- // some/path/ $ ./bin/example # Do things
	- //
	- // ...into path, command, and comment components.
	-
	- $pattern =
	- '@'.
	- ($in_command ? '()(.?)' : '^(\S+[\\\\/] )?([$] .?)').
	- '(#.*\|\\\\)?$@';
	-
	- if (preg_match($pattern, $line, $matches)) {
	- $lines[$key] = hsprintf(
	- '%s<span class="gp">%s</span>%s',
	- $matches[1],
	- $matches[2],
	- (!empty($matches[3])
	- ? hsprintf('<span class="k">%s</span>', $matches[3])
	- : ''));
	- $in_command = (idx($matches, 3) == '\\');
	- } else {
	- $lines[$key] = hsprintf('<span class="go">%s</span>', $line);
	- }
	- }
	- $lines = phutil_implode_html("\n", $lines);
	-
	- return new ImmediateFuture($lines);
	- }
	-
	-}
	diff --git a/src/markup/syntax/highlighter/PhutilDefaultSyntaxHighlighter.php b/src/markup/syntax/highlighter/PhutilDefaultSyntaxHighlighter.php
	deleted file mode 100644
	--- a/src/markup/syntax/highlighter/PhutilDefaultSyntaxHighlighter.php
	+++ /dev/null
	@@ -1,14 +0,0 @@
	-<?php
	-
	-final class PhutilDefaultSyntaxHighlighter extends Phobject {
	-
	- public function setConfig($key, $value) {
	- return $this;
	- }
	-
	- public function getHighlightFuture($source) {
	- $result = hsprintf('%s', $source);
	- return new ImmediateFuture($result);
	- }
	-
	-}
	diff --git a/src/markup/syntax/highlighter/PhutilDivinerSyntaxHighlighter.php b/src/markup/syntax/highlighter/PhutilDivinerSyntaxHighlighter.php
	deleted file mode 100644
	--- a/src/markup/syntax/highlighter/PhutilDivinerSyntaxHighlighter.php
	+++ /dev/null
	@@ -1,81 +0,0 @@
	-<?php
	-
	-/**
	- * Simple syntax highlighter for the ".diviner" format, which is just Remarkup
	- * with a specific ruleset. This should also work alright for Remarkup.
	- */
	-final class PhutilDivinerSyntaxHighlighter extends Phobject {
	-
	- private $config = array();
	- private $replaceClass;
	-
	- public function setConfig($key, $value) {
	- $this->config[$key] = $value;
	- return $this;
	- }
	-
	- public function getHighlightFuture($source) {
	- $source = phutil_escape_html($source);
	-
	- // This highlighter isn't perfect but tries to do an okay job at getting
	- // some of the basics at least. There's lots of room for improvement.
	-
	- $blocks = explode("\n\n", $source);
	- foreach ($blocks as $key => $block) {
	- if (preg_match('/^[^ ](?! )/m', $block)) {
	- $blocks[$key] = $this->highlightBlock($block);
	- }
	- }
	- $source = implode("\n\n", $blocks);
	-
	- $source = phutil_safe_html($source);
	- return new ImmediateFuture($source);
	- }
	-
	- private function highlightBlock($source) {
	- // Highlight "@{class:...}" links to other documentation pages.
	- $source = $this->highlightPattern('/@{([\w@]+?):([^}]+?)}/', $source, 'nc');
	-
	- // Highlight "@title", "@group", etc.
	- $source = $this->highlightPattern('/^@(\w+)/m', $source, 'k');
	-
	- // Highlight bold, italic and monospace.
	- $source = $this->highlightPattern('@\\\\(.+?)\\\\@s', $source, 's');
	- $source = $this->highlightPattern('@(?<!:)//(.+?)//@s', $source, 's');
	- $source = $this->highlightPattern(
	- '@##([\s\S]+?)##\|\B`(.+?)`\B@',
	- $source,
	- 's');
	-
	- // Highlight stuff that looks like headers.
	- $source = $this->highlightPattern('/^=(.*)$/m', $source, 'nv');
	-
	- return $source;
	- }
	-
	- private function highlightPattern($regexp, $source, $class) {
	- $this->replaceClass = $class;
	- $source = preg_replace_callback(
	- $regexp,
	- array($this, 'replacePattern'),
	- $source);
	-
	- return $source;
	- }
	-
	- public function replacePattern($matches) {
	-
	- // NOTE: The goal here is to make sure a <span> never crosses a newline.
	-
	- $content = $matches[0];
	- $content = explode("\n", $content);
	- foreach ($content as $key => $line) {
	- $content[$key] =
	- '<span class="'.$this->replaceClass.'">'.
	- $line.
	- '</span>';
	- }
	- return implode("\n", $content);
	- }
	-
	-}
	diff --git a/src/markup/syntax/highlighter/PhutilInvisibleSyntaxHighlighter.php b/src/markup/syntax/highlighter/PhutilInvisibleSyntaxHighlighter.php
	deleted file mode 100644
	--- a/src/markup/syntax/highlighter/PhutilInvisibleSyntaxHighlighter.php
	+++ /dev/null
	@@ -1,43 +0,0 @@
	-<?php
	-
	-final class PhutilInvisibleSyntaxHighlighter extends Phobject {
	-
	- private $config = array();
	-
	- public function setConfig($key, $value) {
	- $this->config[$key] = $value;
	- return $this;
	- }
	-
	- public function getHighlightFuture($source) {
	- $keys = array_map('chr', range(0x0, 0x1F));
	- $vals = array_map(
	- array($this, 'decimalToHtmlEntityDecoded'), range(0x2400, 0x241F));
	-
	- $invisible = array_combine($keys, $vals);
	-
	- $result = array();
	- foreach (str_split($source) as $character) {
	- if (isset($invisible[$character])) {
	- $result[] = phutil_tag(
	- 'span',
	- array('class' => 'invisible'),
	- $invisible[$character]);
	-
	- if ($character === "\n") {
	- $result[] = $character;
	- }
	- } else {
	- $result[] = $character;
	- }
	- }
	-
	- $result = phutil_implode_html('', $result);
	- return new ImmediateFuture($result);
	- }
	-
	- private function decimalToHtmlEntityDecoded($dec) {
	- return html_entity_decode("&#{$dec};");
	- }
	-
	-}
	diff --git a/src/markup/syntax/highlighter/PhutilLexerSyntaxHighlighter.php b/src/markup/syntax/highlighter/PhutilLexerSyntaxHighlighter.php
	deleted file mode 100644
	--- a/src/markup/syntax/highlighter/PhutilLexerSyntaxHighlighter.php
	+++ /dev/null
	@@ -1,72 +0,0 @@
	-<?php
	-
	-final class PhutilLexerSyntaxHighlighter extends PhutilSyntaxHighlighter {
	-
	- private $config = array();
	-
	- public function setConfig($key, $value) {
	- $this->config[$key] = $value;
	- return $this;
	- }
	-
	- public function getHighlightFuture($source) {
	- $strip = false;
	- $state = 'start';
	- $lang = idx($this->config, 'language');
	-
	- if ($lang == 'php') {
	- if (strpos($source, '<?') === false) {
	- $state = 'php';
	- }
	- }
	-
	- $lexer = idx($this->config, 'lexer');
	- $tokens = $lexer->getTokens($source, $state);
	- $tokens = $lexer->mergeTokens($tokens);
	-
	- $result = array();
	- foreach ($tokens as $token) {
	- list($type, $value, $context) = $token;
	-
	- $data_name = null;
	- switch ($type) {
	- case 'nc':
	- case 'nf':
	- case 'na':
	- $data_name = $value;
	- break;
	- }
	-
	- if (strpos($value, "\n") !== false) {
	- $value = explode("\n", $value);
	- } else {
	- $value = array($value);
	- }
	- foreach ($value as $part) {
	- if (strlen($part)) {
	- if ($type) {
	- $result[] = phutil_tag(
	- 'span',
	- array(
	- 'class' => $type,
	- 'data-symbol-context' => $context,
	- 'data-symbol-name' => $data_name,
	- ),
	- $part);
	- } else {
	- $result[] = $part;
	- }
	- }
	- $result[] = "\n";
	- }
	-
	- // Throw away the last "\n".
	- array_pop($result);
	- }
	-
	- $result = phutil_implode_html('', $result);
	-
	- return new ImmediateFuture($result);
	- }
	-
	-}
	diff --git a/src/markup/syntax/highlighter/PhutilPygmentsSyntaxHighlighter.php b/src/markup/syntax/highlighter/PhutilPygmentsSyntaxHighlighter.php
	deleted file mode 100644
	--- a/src/markup/syntax/highlighter/PhutilPygmentsSyntaxHighlighter.php
	+++ /dev/null
	@@ -1,229 +0,0 @@
	-<?php
	-
	-final class PhutilPygmentsSyntaxHighlighter extends Phobject {
	-
	- private $config = array();
	-
	- public function setConfig($key, $value) {
	- $this->config[$key] = $value;
	- return $this;
	- }
	-
	- public function getHighlightFuture($source) {
	- $language = idx($this->config, 'language');
	-
	- if (preg_match('/\r(?!\n)/', $source)) {
	- // TODO: Pygments converts "\r" newlines into "\n" newlines, so we can't
	- // use it on files with "\r" newlines. If we have "\r" not followed by
	- // "\n" in the file, skip highlighting.
	- $language = null;
	- }
	-
	- if ($language) {
	- $language = $this->getPygmentsLexerNameFromLanguageName($language);
	-
	- // See T13224. Under Ubuntu, avoid leaving an intermedite "dash" shell
	- // process so we hit "pygmentize" directly if we have to SIGKILL this
	- // because it explodes.
	-
	- $future = new ExecFuture(
	- 'exec pygmentize -O encoding=utf-8 -O stripnl=False -f html -l %s',
	- $language);
	-
	- $scrub = false;
	- if ($language == 'php' && strpos($source, '<?') === false) {
	- $source = "<?php\n".$source;
	- $scrub = true;
	- }
	-
	- // See T13224. In some cases, "pygmentize" has explosive runtime on small
	- // inputs. Put a hard cap on how long it is allowed to run for to limit
	- // the amount of damage it can do.
	- $future->setTimeout(15);
	-
	- $future->write($source);
	-
	- return new PhutilDefaultSyntaxHighlighterEnginePygmentsFuture(
	- $future,
	- $source,
	- $scrub);
	- }
	-
	- return id(new PhutilDefaultSyntaxHighlighter())
	- ->getHighlightFuture($source);
	- }
	-
	- private function getPygmentsLexerNameFromLanguageName($language) {
	- static $map = array(
	- 'adb' => 'ada',
	- 'ads' => 'ada',
	- 'ahkl' => 'ahk',
	- 'as' => 'as3',
	- 'asax' => 'aspx-vb',
	- 'ascx' => 'aspx-vb',
	- 'ashx' => 'aspx-vb',
	- 'ASM' => 'nasm',
	- 'asm' => 'nasm',
	- 'asmx' => 'aspx-vb',
	- 'aspx' => 'aspx-vb',
	- 'autodelegate' => 'myghty',
	- 'autohandler' => 'mason',
	- 'aux' => 'tex',
	- 'axd' => 'aspx-vb',
	- 'b' => 'brainfuck',
	- 'bas' => 'vb.net',
	- 'bf' => 'brainfuck',
	- 'bmx' => 'blitzmax',
	- 'c++' => 'cpp',
	- 'c++-objdump' => 'cpp-objdump',
	- 'cc' => 'cpp',
	- 'cfc' => 'cfm',
	- 'cfg' => 'ini',
	- 'cfml' => 'cfm',
	- 'cl' => 'common-lisp',
	- 'clj' => 'clojure',
	- 'cmd' => 'bat',
	- 'coffee' => 'coffee-script',
	- 'cs' => 'csharp',
	- 'csh' => 'tcsh',
	- 'cw' => 'redcode',
	- 'cxx' => 'cpp',
	- 'cxx-objdump' => 'cpp-objdump',
	- 'darcspatch' => 'dpatch',
	- 'def' => 'modula2',
	- 'dhandler' => 'mason',
	- 'di' => 'd',
	- 'duby' => 'rb',
	- 'dyl' => 'dylan',
	- 'ebuild' => 'bash',
	- 'eclass' => 'bash',
	- 'el' => 'common-lisp',
	- 'eps' => 'postscript',
	- 'erl' => 'erlang',
	- 'erl-sh' => 'erl',
	- 'f' => 'fortran',
	- 'f90' => 'fortran',
	- 'feature' => 'Cucumber',
	- 'fhtml' => 'velocity',
	- 'flx' => 'felix',
	- 'flxh' => 'felix',
	- 'frag' => 'glsl',
	- 'g' => 'antlr-ruby',
	- 'G' => 'antlr-ruby',
	- 'gdc' => 'gooddata-cl',
	- 'gemspec' => 'rb',
	- 'geo' => 'glsl',
	- 'GNUmakefile' => 'make',
	- 'h' => 'c',
	- 'h++' => 'cpp',
	- 'hh' => 'cpp',
	- 'hpp' => 'cpp',
	- 'hql' => 'sql',
	- 'hrl' => 'erlang',
	- 'hs' => 'haskell',
	- 'htaccess' => 'apacheconf',
	- 'htm' => 'html',
	- 'html' => 'html+evoque',
	- 'hxx' => 'cpp',
	- 'hy' => 'hybris',
	- 'hyb' => 'hybris',
	- 'ik' => 'ioke',
	- 'inc' => 'pov',
	- 'j' => 'objective-j',
	- 'jbst' => 'duel',
	- 'kid' => 'genshi',
	- 'ksh' => 'bash',
	- 'less' => 'css',
	- 'lgt' => 'logtalk',
	- 'lisp' => 'common-lisp',
	- 'll' => 'llvm',
	- 'm' => 'objective-c',
	- 'mak' => 'make',
	- 'Makefile' => 'make',
	- 'makefile' => 'make',
	- 'man' => 'groff',
	- 'mao' => 'mako',
	- 'mc' => 'mason',
	- 'md' => 'minid',
	- 'mhtml' => 'mason',
	- 'mi' => 'mason',
	- 'ml' => 'ocaml',
	- 'mli' => 'ocaml',
	- 'mll' => 'ocaml',
	- 'mly' => 'ocaml',
	- 'mm' => 'objective-c',
	- 'mo' => 'modelica',
	- 'mod' => 'modula2',
	- 'moo' => 'moocode',
	- 'mu' => 'mupad',
	- 'myt' => 'myghty',
	- 'ns2' => 'newspeak',
	- 'pas' => 'delphi',
	- 'patch' => 'diff',
	- 'phtml' => 'html+php',
	- 'pl' => 'prolog',
	- 'plot' => 'gnuplot',
	- 'plt' => 'gnuplot',
	- 'pm' => 'perl',
	- 'po' => 'pot',
	- 'pp' => 'puppet',
	- 'pro' => 'prolog',
	- 'proto' => 'protobuf',
	- 'ps' => 'postscript',
	- 'pxd' => 'cython',
	- 'pxi' => 'cython',
	- 'py' => 'python',
	- 'pyw' => 'python',
	- 'pyx' => 'cython',
	- 'R' => 'splus',
	- 'r' => 'rebol',
	- 'r3' => 'rebol',
	- 'rake' => 'rb',
	- 'Rakefile' => 'rb',
	- 'rbw' => 'rb',
	- 'rbx' => 'rb',
	- 'rest' => 'rst',
	- 'rl' => 'ragel-em',
	- 'robot' => 'robotframework',
	- 'Rout' => 'rconsole',
	- 'rss' => 'xml',
	- 's' => 'gas',
	- 'S' => 'splus',
	- 'sc' => 'python',
	- 'scm' => 'scheme',
	- 'SConscript' => 'python',
	- 'SConstruct' => 'python',
	- 'scss' => 'css',
	- 'sh' => 'bash',
	- 'sh-session' => 'console',
	- 'spt' => 'cheetah',
	- 'sqlite3-console' => 'sqlite3',
	- 'st' => 'smalltalk',
	- 'sv' => 'v',
	- 'tac' => 'python',
	- 'tmpl' => 'cheetah',
	- 'toc' => 'tex',
	- 'tpl' => 'smarty',
	- 'txt' => 'text',
	- 'vapi' => 'vala',
	- 'vb' => 'vb.net',
	- 'vert' => 'glsl',
	- 'vhd' => 'vhdl',
	- 'vimrc' => 'vim',
	- 'vm' => 'velocity',
	- 'weechatlog' => 'irc',
	- 'wlua' => 'lua',
	- 'wsdl' => 'xml',
	- 'xhtml' => 'html',
	- 'xml' => 'xml+evoque',
	- 'xqy' => 'xquery',
	- 'xsd' => 'xml',
	- 'xsl' => 'xslt',
	- 'xslt' => 'xml',
	- 'yml' => 'yaml',
	- );
	-
	- return idx($map, $language, $language);
	- }
	-
	-}
	diff --git a/src/markup/syntax/highlighter/PhutilRainbowSyntaxHighlighter.php b/src/markup/syntax/highlighter/PhutilRainbowSyntaxHighlighter.php
	deleted file mode 100644
	--- a/src/markup/syntax/highlighter/PhutilRainbowSyntaxHighlighter.php
	+++ /dev/null
	@@ -1,46 +0,0 @@
	-<?php
	-
	-/**
	- * Highlights source code with a rainbow of colors, regardless of the language.
	- * This highlighter is useless, absurd, and extremely slow.
	- */
	-final class PhutilRainbowSyntaxHighlighter extends Phobject {
	-
	- private $config = array();
	-
	- public function setConfig($key, $value) {
	- $this->config[$key] = $value;
	- return $this;
	- }
	-
	- public function getHighlightFuture($source) {
	-
	- $color = 0;
	- $colors = array(
	- 'rbw_r',
	- 'rbw_o',
	- 'rbw_y',
	- 'rbw_g',
	- 'rbw_b',
	- 'rbw_i',
	- 'rbw_v',
	- );
	-
	- $result = array();
	- foreach (phutil_utf8v($source) as $character) {
	- if ($character == ' ' \|\| $character == "\n") {
	- $result[] = $character;
	- continue;
	- }
	- $result[] = phutil_tag(
	- 'span',
	- array('class' => $colors[$color]),
	- $character);
	- $color = ($color + 1) % count($colors);
	- }
	-
	- $result = phutil_implode_html('', $result);
	- return new ImmediateFuture($result);
	- }
	-
	-}
	diff --git a/src/markup/syntax/highlighter/PhutilSyntaxHighlighter.php b/src/markup/syntax/highlighter/PhutilSyntaxHighlighter.php
	deleted file mode 100644
	--- a/src/markup/syntax/highlighter/PhutilSyntaxHighlighter.php
	+++ /dev/null
	@@ -1,6 +0,0 @@
	-<?php
	-
	-abstract class PhutilSyntaxHighlighter extends Phobject {
	- abstract public function setConfig($key, $value);
	- abstract public function getHighlightFuture($source);
	-}
	diff --git a/src/markup/syntax/highlighter/PhutilSyntaxHighlighterException.php b/src/markup/syntax/highlighter/PhutilSyntaxHighlighterException.php
	deleted file mode 100644
	--- a/src/markup/syntax/highlighter/PhutilSyntaxHighlighterException.php
	+++ /dev/null
	@@ -1,3 +0,0 @@
	-<?php
	-
	-final class PhutilSyntaxHighlighterException extends Exception {}
	diff --git a/src/markup/syntax/highlighter/PhutilXHPASTSyntaxHighlighter.php b/src/markup/syntax/highlighter/PhutilXHPASTSyntaxHighlighter.php
	deleted file mode 100644
	--- a/src/markup/syntax/highlighter/PhutilXHPASTSyntaxHighlighter.php
	+++ /dev/null
	@@ -1,18 +0,0 @@
	-<?php
	-
	-final class PhutilXHPASTSyntaxHighlighter extends Phobject {
	-
	- public function getHighlightFuture($source) {
	- $scrub = false;
	- if (strpos($source, '<?') === false) {
	- $source = "<?php\n".$source;
	- $scrub = true;
	- }
	-
	- return new PhutilXHPASTSyntaxHighlighterFuture(
	- PhutilXHPASTBinary::getParserFuture($source),
	- $source,
	- $scrub);
	- }
	-
	-}
	diff --git a/src/markup/syntax/highlighter/__tests__/PhutilJSONFragmentLexerHighlighterTestCase.php b/src/markup/syntax/highlighter/__tests__/PhutilJSONFragmentLexerHighlighterTestCase.php
	deleted file mode 100644
	--- a/src/markup/syntax/highlighter/__tests__/PhutilJSONFragmentLexerHighlighterTestCase.php
	+++ /dev/null
	@@ -1,24 +0,0 @@
	-<?php
	-
	-final class PhutilJSONFragmentLexerHighlighterTestCase extends PhutilTestCase {
	-
	- public function testLexer() {
	- $highlighter = id(new PhutilLexerSyntaxHighlighter())
	- ->setConfig('language', 'json')
	- ->setConfig('lexer', new PhutilJSONFragmentLexer());
	-
	- $path = dirname(__FILE__).'/data/jsonfragment/';
	- foreach (Filesystem::listDirectory($path, $include_hidden = false) as $f) {
	- if (preg_match('/.test$/', $f)) {
	- $expect = preg_replace('/.test$/', '.expect', $f);
	- $source = Filesystem::readFile($path.'/'.$f);
	-
	- $this->assertEqual(
	- Filesystem::readFile($path.'/'.$expect),
	- (string)$highlighter->getHighlightFuture($source)->resolve(),
	- $f);
	- }
	- }
	- }
	-
	-}
	diff --git a/src/markup/syntax/highlighter/__tests__/PhutilPHPFragmentLexerHighlighterTestCase.php b/src/markup/syntax/highlighter/__tests__/PhutilPHPFragmentLexerHighlighterTestCase.php
	deleted file mode 100644
	--- a/src/markup/syntax/highlighter/__tests__/PhutilPHPFragmentLexerHighlighterTestCase.php
	+++ /dev/null
	@@ -1,25 +0,0 @@
	-<?php
	-
	-final class PhutilPHPFragmentLexerHighlighterTestCase extends PhutilTestCase {
	-
	- public function testLexer() {
	- $highlighter = new PhutilLexerSyntaxHighlighter();
	- $highlighter->setConfig('language', 'php');
	- $highlighter->setConfig('lexer', new PhutilPHPFragmentLexer());
	-
	-
	- $path = dirname(__FILE__).'/phpfragment/';
	- foreach (Filesystem::listDirectory($path, $include_hidden = false) as $f) {
	- if (preg_match('/.test$/', $f)) {
	- $expect = preg_replace('/.test$/', '.expect', $f);
	- $source = Filesystem::readFile($path.'/'.$f);
	-
	- $this->assertEqual(
	- Filesystem::readFile($path.'/'.$expect),
	- (string)$highlighter->getHighlightFuture($source)->resolve(),
	- $f);
	- }
	- }
	- }
	-
	-}
	diff --git a/src/markup/syntax/highlighter/__tests__/PhutilXHPASTSyntaxHighlighterTestCase.php b/src/markup/syntax/highlighter/__tests__/PhutilXHPASTSyntaxHighlighterTestCase.php
	deleted file mode 100644
	--- a/src/markup/syntax/highlighter/__tests__/PhutilXHPASTSyntaxHighlighterTestCase.php
	+++ /dev/null
	@@ -1,39 +0,0 @@
	-<?php
	-
	-final class PhutilXHPASTSyntaxHighlighterTestCase extends PhutilTestCase {
	-
	- private function highlight($source) {
	- $highlighter = new PhutilXHPASTSyntaxHighlighter();
	- $future = $highlighter->getHighlightFuture($source);
	- return $future->resolve();
	- }
	-
	- private function read($file) {
	- $path = dirname(__FILE__).'/xhpast/'.$file;
	- return Filesystem::readFile($path);
	- }
	-
	- public function testBuiltinClassnames() {
	- $this->assertEqual(
	- $this->read('builtin-classname.expect'),
	- (string)$this->highlight($this->read('builtin-classname.source')),
	- pht('Builtin classnames should not be marked as linkable symbols.'));
	- $this->assertEqual(
	- rtrim($this->read('trailing-comment.expect')),
	- (string)$this->highlight($this->read('trailing-comment.source')),
	- pht('Trailing comments should not be dropped.'));
	- $this->assertEqual(
	- $this->read('multiline-token.expect'),
	- (string)$this->highlight($this->read('multiline-token.source')),
	- pht('Multi-line tokens should be split across lines.'));
	- $this->assertEqual(
	- $this->read('leading-whitespace.expect'),
	- (string)$this->highlight($this->read('leading-whitespace.source')),
	- pht('Snippets with leading whitespace should be preserved.'));
	- $this->assertEqual(
	- $this->read('no-leading-whitespace.expect'),
	- (string)$this->highlight($this->read('no-leading-whitespace.source')),
	- pht('Snippets with no leading whitespace should be preserved.'));
	- }
	-
	-}
	diff --git a/src/markup/syntax/highlighter/__tests__/data/jsonfragment/basics.expect b/src/markup/syntax/highlighter/__tests__/data/jsonfragment/basics.expect
	deleted file mode 100644
	--- a/src/markup/syntax/highlighter/__tests__/data/jsonfragment/basics.expect
	+++ /dev/null
	@@ -1,12 +0,0 @@
	-<span class="o">{</span>
	- <span class="s">"key"</span><span class="o">:</span> <span class="mf">3.5</span><span class="o">,</span>
	- <span class="s">"true"</span><span class="o">:</span> <span class="k">true</span><span class="o">,</span>
	- <span class="s">"false"</span><span class="o">:</span> <span class="k">false</span><span class="o">,</span>
	- <span class="s">"null"</span><span class="o">:</span> <span class="k">null</span><span class="o">,</span>
	- <span class="s">"list"</span><span class="o">:</span> <span class="o">[</span><span class="mf">1</span><span class="o">,</span> <span class="mf">2</span><span class="o">,</span> <span class="mf">3</span><span class="o">],</span>
	- <span class="s">"object"</span><span class="o">:</span> <span class="o">{</span>
	- <span class="s">"k1"</span><span class="o">:</span> <span class="s">"v1"</span>
	- <span class="o">},</span>
	- <span class="s">"numbers"</span><span class="o">:</span> <span class="o">[</span><span class="mf">0</span>e<span class="mf">1</span><span class="o">,</span> <span class="mf">1</span>e<span class="mf">-1</span><span class="o">,</span> <span class="mf">-1</span>e<span class="mf">-1</span><span class="o">,</span> <span class="mf">-1</span>e+<span class="mf">1</span><span class="o">],</span>
	- <span class="s">"</span><span class="k">\"\u1234</span><span class="s">'abc[]{}..."</span>
	-<span class="o">}</span>
	diff --git a/src/markup/syntax/highlighter/__tests__/data/jsonfragment/basics.test b/src/markup/syntax/highlighter/__tests__/data/jsonfragment/basics.test
	deleted file mode 100644
	--- a/src/markup/syntax/highlighter/__tests__/data/jsonfragment/basics.test
	+++ /dev/null
	@@ -1,12 +0,0 @@
	-{
	- "key": 3.5,
	- "true": true,
	- "false": false,
	- "null": null,
	- "list": [1, 2, 3],
	- "object": {
	- "k1": "v1"
	- },
	- "numbers": [0e1, 1e-1, -1e-1, -1e+1],
	- "\"\u1234'abc[]{}..."
	-}
	diff --git a/src/markup/syntax/highlighter/__tests__/phpfragment/abuse.expect b/src/markup/syntax/highlighter/__tests__/phpfragment/abuse.expect
	deleted file mode 100644
	--- a/src/markup/syntax/highlighter/__tests__/phpfragment/abuse.expect
	+++ /dev/null
	@@ -1,16 +0,0 @@
	-<span class="cp"><?</span>
	-
	-<span class="c">// comment? comment! </span><span class="cp">?></span>
	-
	-data
	-
	-<span class="cp"><?php</span>
	-
	-<span class="cp">__halt_compiler</span> <span class="cm">/* ! */</span> <span class="o">(</span> <span class="c">// )</span>
	-<span class="o">)</span> <span class="cm">/* ;;;; */</span>
	-
	-<span class="o">;</span>
	-
	-data data
	-<?php
	-data
	diff --git a/src/markup/syntax/highlighter/__tests__/phpfragment/abuse.test b/src/markup/syntax/highlighter/__tests__/phpfragment/abuse.test
	deleted file mode 100644
	--- a/src/markup/syntax/highlighter/__tests__/phpfragment/abuse.test
	+++ /dev/null
	@@ -1,16 +0,0 @@
	-<?
	-
	-// comment? comment! ?>
	-
	-data
	-
	-<?php
	-
	-__halt_compiler /* ! */ ( // )
	-) /* ;;;; */
	-
	-;
	-
	-data data
	-<?php
	-data
	diff --git a/src/markup/syntax/highlighter/__tests__/phpfragment/basics.expect b/src/markup/syntax/highlighter/__tests__/phpfragment/basics.expect
	deleted file mode 100644
	--- a/src/markup/syntax/highlighter/__tests__/phpfragment/basics.expect
	+++ /dev/null
	@@ -1,5 +0,0 @@
	-<span class="k">public</span> <span class="k">function</span> <span class="no">f</span><span class="o">()</span> <span class="o">{</span>
	- <span class="nc" data-symbol-name="ExampleClass">ExampleClass</span><span class="o">::</span><span class="na" data-symbol-context="ExampleClass" data-symbol-name="EXAMPLE_CONSTANT">EXAMPLE_CONSTANT</span><span class="o">;</span>
	- <span class="nc" data-symbol-name="ExampleClass">ExampleClass</span><span class="o">::</span><span class="nf" data-symbol-context="ExampleClass" data-symbol-name="exampleMethod">exampleMethod</span><span class="o">();</span>
	- <span class="nf" data-symbol-name="example_function">example_function</span><span class="o">();</span>
	-<span class="o">}</span>
	diff --git a/src/markup/syntax/highlighter/__tests__/phpfragment/basics.test b/src/markup/syntax/highlighter/__tests__/phpfragment/basics.test
	deleted file mode 100644
	--- a/src/markup/syntax/highlighter/__tests__/phpfragment/basics.test
	+++ /dev/null
	@@ -1,5 +0,0 @@
	-public function f() {
	- ExampleClass::EXAMPLE_CONSTANT;
	- ExampleClass::exampleMethod();
	- example_function();
	-}
	diff --git a/src/markup/syntax/highlighter/__tests__/phpfragment/leading-whitespace.expect b/src/markup/syntax/highlighter/__tests__/phpfragment/leading-whitespace.expect
	deleted file mode 100644
	--- a/src/markup/syntax/highlighter/__tests__/phpfragment/leading-whitespace.expect
	+++ /dev/null
	@@ -1,3 +0,0 @@
	- <span class="k">foreach</span> <span class="o">(</span><span class="nv">$x</span> <span class="k">as</span> <span class="nv">$y</span><span class="o">)</span> <span class="o">{</span>
	- <span class="nf" data-symbol-name="z">z</span><span class="o">();</span>
	- <span class="o">}</span>
	diff --git a/src/markup/syntax/highlighter/__tests__/phpfragment/leading-whitespace.test b/src/markup/syntax/highlighter/__tests__/phpfragment/leading-whitespace.test
	deleted file mode 100644
	--- a/src/markup/syntax/highlighter/__tests__/phpfragment/leading-whitespace.test
	+++ /dev/null
	@@ -1,3 +0,0 @@
	- foreach ($x as $y) {
	- z();
	- }
	diff --git a/src/markup/syntax/highlighter/__tests__/phpfragment/no-leading-whitespace.expect b/src/markup/syntax/highlighter/__tests__/phpfragment/no-leading-whitespace.expect
	deleted file mode 100644
	--- a/src/markup/syntax/highlighter/__tests__/phpfragment/no-leading-whitespace.expect
	+++ /dev/null
	@@ -1,3 +0,0 @@
	-<span class="k">foreach</span> <span class="o">(</span><span class="nv">$x</span> <span class="k">as</span> <span class="nv">$y</span><span class="o">)</span> <span class="o">{</span>
	- <span class="nf" data-symbol-name="z">z</span><span class="o">();</span>
	-<span class="o">}</span>
	diff --git a/src/markup/syntax/highlighter/__tests__/phpfragment/no-leading-whitespace.test b/src/markup/syntax/highlighter/__tests__/phpfragment/no-leading-whitespace.test
	deleted file mode 100644
	--- a/src/markup/syntax/highlighter/__tests__/phpfragment/no-leading-whitespace.test
	+++ /dev/null
	@@ -1,3 +0,0 @@
	-foreach ($x as $y) {
	- z();
	-}
	diff --git a/src/markup/syntax/highlighter/__tests__/xhpast/builtin-classname.expect b/src/markup/syntax/highlighter/__tests__/xhpast/builtin-classname.expect
	deleted file mode 100644
	--- a/src/markup/syntax/highlighter/__tests__/xhpast/builtin-classname.expect
	+++ /dev/null
	@@ -1,10 +0,0 @@
	-<span class="o"><?php</span>
	-
	-<span class="k">class</span> <span data-symbol-name="C" class="nc">C</span> <span class="k">{</span>
	- <span class="k">public</span> <span class="k">function</span> <span class="nx">f</span><span class="k">(</span><span class="k">)</span> <span class="k">{</span>
	- <span data-symbol-name="D" class="nc">D</span><span class="k">::</span><span data-symbol-context="D" data-symbol-name="X" class="na">X</span><span class="k">;</span>
	- <span class="nx">self</span><span class="k">::</span><span data-symbol-name="X" class="na">X</span><span class="k">;</span>
	- <span class="nx">parent</span><span class="k">::</span><span data-symbol-name="X" class="na">X</span><span class="k">;</span>
	- <span class="k">static</span><span class="k">::</span><span data-symbol-name="X" class="na">X</span><span class="k">;</span>
	- <span class="k">}</span>
	-<span class="k">}</span>
	diff --git a/src/markup/syntax/highlighter/__tests__/xhpast/builtin-classname.source b/src/markup/syntax/highlighter/__tests__/xhpast/builtin-classname.source
	deleted file mode 100644
	--- a/src/markup/syntax/highlighter/__tests__/xhpast/builtin-classname.source
	+++ /dev/null
	@@ -1,10 +0,0 @@
	-<?php
	-
	-class C {
	- public function f() {
	- D::X;
	- self::X;
	- parent::X;
	- static::X;
	- }
	-}
	diff --git a/src/markup/syntax/highlighter/__tests__/xhpast/leading-whitespace.expect b/src/markup/syntax/highlighter/__tests__/xhpast/leading-whitespace.expect
	deleted file mode 100644
	--- a/src/markup/syntax/highlighter/__tests__/xhpast/leading-whitespace.expect
	+++ /dev/null
	@@ -1,3 +0,0 @@
	- <span class="k">foreach</span> <span class="k">(</span><span class="nv">$x</span> <span class="k">as</span> <span class="nv">$y</span><span class="k">)</span> <span class="k">{</span>
	- <span data-symbol-name="z" class="nf">z</span><span class="k">(</span><span class="k">)</span><span class="k">;</span>
	- <span class="k">}</span>
	diff --git a/src/markup/syntax/highlighter/__tests__/xhpast/leading-whitespace.source b/src/markup/syntax/highlighter/__tests__/xhpast/leading-whitespace.source
	deleted file mode 100644
	--- a/src/markup/syntax/highlighter/__tests__/xhpast/leading-whitespace.source
	+++ /dev/null
	@@ -1,3 +0,0 @@
	- foreach ($x as $y) {
	- z();
	- }
	diff --git a/src/markup/syntax/highlighter/__tests__/xhpast/multiline-token.expect b/src/markup/syntax/highlighter/__tests__/xhpast/multiline-token.expect
	deleted file mode 100644
	--- a/src/markup/syntax/highlighter/__tests__/xhpast/multiline-token.expect
	+++ /dev/null
	@@ -1,5 +0,0 @@
	-<span class="o"><?php</span>
	-
	-<span class="c">/* this comment
	-</span><span class="c">extends across
	-</span><span class="c">multiple lines */</span>
	diff --git a/src/markup/syntax/highlighter/__tests__/xhpast/multiline-token.source b/src/markup/syntax/highlighter/__tests__/xhpast/multiline-token.source
	deleted file mode 100644
	--- a/src/markup/syntax/highlighter/__tests__/xhpast/multiline-token.source
	+++ /dev/null
	@@ -1,5 +0,0 @@
	-<?php
	-
	-/* this comment
	-extends across
	-multiple lines */
	diff --git a/src/markup/syntax/highlighter/__tests__/xhpast/no-leading-whitespace.expect b/src/markup/syntax/highlighter/__tests__/xhpast/no-leading-whitespace.expect
	deleted file mode 100644
	--- a/src/markup/syntax/highlighter/__tests__/xhpast/no-leading-whitespace.expect
	+++ /dev/null
	@@ -1,3 +0,0 @@
	-<span class="k">foreach</span> <span class="k">(</span><span class="nv">$x</span> <span class="k">as</span> <span class="nv">$y</span><span class="k">)</span> <span class="k">{</span>
	- <span data-symbol-name="z" class="nf">z</span><span class="k">(</span><span class="k">)</span><span class="k">;</span>
	-<span class="k">}</span>
	diff --git a/src/markup/syntax/highlighter/__tests__/xhpast/no-leading-whitespace.source b/src/markup/syntax/highlighter/__tests__/xhpast/no-leading-whitespace.source
	deleted file mode 100644
	--- a/src/markup/syntax/highlighter/__tests__/xhpast/no-leading-whitespace.source
	+++ /dev/null
	@@ -1,3 +0,0 @@
	-foreach ($x as $y) {
	- z();
	-}
	diff --git a/src/markup/syntax/highlighter/__tests__/xhpast/trailing-comment.expect b/src/markup/syntax/highlighter/__tests__/xhpast/trailing-comment.expect
	deleted file mode 100644
	--- a/src/markup/syntax/highlighter/__tests__/xhpast/trailing-comment.expect
	+++ /dev/null
	@@ -1,3 +0,0 @@
	-<span class="o"><?php</span>
	-<span class="c">// xyz
	-</span>
	diff --git a/src/markup/syntax/highlighter/__tests__/xhpast/trailing-comment.source b/src/markup/syntax/highlighter/__tests__/xhpast/trailing-comment.source
	deleted file mode 100644
	--- a/src/markup/syntax/highlighter/__tests__/xhpast/trailing-comment.source
	+++ /dev/null
	@@ -1,2 +0,0 @@
	-<?php
	-// xyz
	diff --git a/src/markup/syntax/highlighter/pygments/PhutilDefaultSyntaxHighlighterEnginePygmentsFuture.php b/src/markup/syntax/highlighter/pygments/PhutilDefaultSyntaxHighlighterEnginePygmentsFuture.php
	deleted file mode 100644
	--- a/src/markup/syntax/highlighter/pygments/PhutilDefaultSyntaxHighlighterEnginePygmentsFuture.php
	+++ /dev/null
	@@ -1,33 +0,0 @@
	-<?php
	-
	-final class PhutilDefaultSyntaxHighlighterEnginePygmentsFuture
	- extends FutureProxy {
	-
	- private $source;
	- private $scrub;
	-
	- public function __construct(Future $proxied, $source, $scrub = false) {
	- parent::__construct($proxied);
	- $this->source = $source;
	- $this->scrub = $scrub;
	- }
	-
	- protected function didReceiveResult($result) {
	- list($err, $stdout, $stderr) = $result;
	-
	- if (!$err && strlen($stdout)) {
	- // Strip off fluff Pygments adds.
	- $stdout = preg_replace(
	- '@^<div class="highlight"><pre>(.)</pre></div>\s$@s',
	- '\1',
	- $stdout);
	- if ($this->scrub) {
	- $stdout = preg_replace('/^.*\n/', '', $stdout);
	- }
	- return phutil_safe_html($stdout);
	- }
	-
	- throw new PhutilSyntaxHighlighterException($stderr, $err);
	- }
	-
	-}
	diff --git a/src/markup/syntax/highlighter/xhpast/PhutilXHPASTSyntaxHighlighterFuture.php b/src/markup/syntax/highlighter/xhpast/PhutilXHPASTSyntaxHighlighterFuture.php
	deleted file mode 100644
	--- a/src/markup/syntax/highlighter/xhpast/PhutilXHPASTSyntaxHighlighterFuture.php
	+++ /dev/null
	@@ -1,262 +0,0 @@
	-<?php
	-
	-final class PhutilXHPASTSyntaxHighlighterFuture extends FutureProxy {
	-
	- private $source;
	- private $scrub;
	-
	- public function __construct(Future $proxied, $source, $scrub = false) {
	- parent::__construct($proxied);
	- $this->source = $source;
	- $this->scrub = $scrub;
	- }
	-
	- protected function didReceiveResult($result) {
	- try {
	- return $this->applyXHPHighlight($result);
	- } catch (Exception $ex) {
	- // XHP can't highlight source that isn't syntactically valid. Fall back
	- // to the fragment lexer.
	- $source = ($this->scrub
	- ? preg_replace('/^.*\n/', '', $this->source)
	- : $this->source);
	- return id(new PhutilLexerSyntaxHighlighter())
	- ->setConfig('lexer', new PhutilPHPFragmentLexer())
	- ->setConfig('language', 'php')
	- ->getHighlightFuture($source)
	- ->resolve();
	- }
	- }
	-
	- private function applyXHPHighlight($result) {
	-
	- // We perform two passes here: one using the AST to find symbols we care
	- // about -- particularly, class names and function names. These are used
	- // in the crossreference stuff to link into Diffusion. After we've done our
	- // AST pass, we do a followup pass on the token stream to catch all the
	- // simple stuff like strings and comments.
	-
	- $tree = XHPASTTree::newFromDataAndResolvedExecFuture(
	- $this->source,
	- $result);
	-
	- $root = $tree->getRootNode();
	-
	- $tokens = $root->getTokens();
	- $interesting_symbols = $this->findInterestingSymbols($root);
	-
	-
	- if ($this->scrub) {
	- // If we're scrubbing, we prepended "<?php\n" to the text to force the
	- // highlighter to treat it as PHP source. Now, we need to remove that.
	-
	- $ok = false;
	- if (count($tokens) >= 2) {
	- if ($tokens[0]->getTypeName() === 'T_OPEN_TAG') {
	- if ($tokens[1]->getTypeName() === 'T_WHITESPACE') {
	- $ok = true;
	- }
	- }
	- }
	-
	- if (!$ok) {
	- throw new Exception(
	- pht(
	- 'Expected T_OPEN_TAG, T_WHITESPACE tokens at head of results '.
	- 'for highlighting parse of PHP snippet.'));
	- }
	-
	- // Remove the "<?php".
	- unset($tokens[0]);
	-
	- $value = $tokens[1]->getValue();
	- if ((strlen($value) < 1) \|\| ($value[0] != "\n")) {
	- throw new Exception(
	- pht(
	- 'Expected "\\n" at beginning of T_WHITESPACE token at head of '.
	- 'tokens for highlighting parse of PHP snippet.'));
	- }
	-
	- $value = substr($value, 1);
	- $tokens[1]->overwriteValue($value);
	- }
	-
	- $out = array();
	- foreach ($tokens as $key => $token) {
	- $value = $token->getValue();
	- $class = null;
	- $multi = false;
	- $attrs = array();
	- if (isset($interesting_symbols[$key])) {
	- $sym = $interesting_symbols[$key];
	- $class = $sym[0];
	- $attrs['data-symbol-context'] = idx($sym, 'context');
	- $attrs['data-symbol-name'] = idx($sym, 'symbol');
	- } else {
	- switch ($token->getTypeName()) {
	- case 'T_WHITESPACE':
	- break;
	- case 'T_DOC_COMMENT':
	- $class = 'dc';
	- $multi = true;
	- break;
	- case 'T_COMMENT':
	- $class = 'c';
	- $multi = true;
	- break;
	- case 'T_CONSTANT_ENCAPSED_STRING':
	- case 'T_ENCAPSED_AND_WHITESPACE':
	- case 'T_INLINE_HTML':
	- $class = 's';
	- $multi = true;
	- break;
	- case 'T_VARIABLE':
	- $class = 'nv';
	- break;
	- case 'T_OPEN_TAG':
	- case 'T_OPEN_TAG_WITH_ECHO':
	- case 'T_CLOSE_TAG':
	- $class = 'o';
	- break;
	- case 'T_LNUMBER':
	- case 'T_DNUMBER':
	- $class = 'm';
	- break;
	- case 'T_STRING':
	- static $magic = array(
	- 'true' => true,
	- 'false' => true,
	- 'null' => true,
	- );
	- if (isset($magic[strtolower($value)])) {
	- $class = 'k';
	- break;
	- }
	- $class = 'nx';
	- break;
	- default:
	- $class = 'k';
	- break;
	- }
	- }
	-
	- if ($class) {
	- $attrs['class'] = $class;
	- if ($multi) {
	- // If the token may have multiple lines in it, make sure each
	- // <span> crosses no more than one line so the lines can be put
	- // in a table, etc., later.
	- $value = phutil_split_lines($value, $retain_endings = true);
	- } else {
	- $value = array($value);
	- }
	- foreach ($value as $val) {
	- $out[] = phutil_tag('span', $attrs, $val);
	- }
	- } else {
	- $out[] = $value;
	- }
	- }
	-
	- return phutil_implode_html('', $out);
	- }
	-
	- private function findInterestingSymbols(XHPASTNode $root) {
	- // Class name symbols appear in:
	- // class X extends X implements X, X { ... }
	- // new X();
	- // $x instanceof X
	- // catch (X $x)
	- // function f(X $x)
	- // X::f();
	- // X::$m;
	- // X::CONST;
	-
	- // These are PHP builtin tokens which can appear in a classname context.
	- // Don't link them since they don't go anywhere useful.
	- static $builtin_class_tokens = array(
	- 'self' => true,
	- 'parent' => true,
	- 'static' => true,
	- );
	-
	- // Fortunately XHPAST puts all of these in a special node type so it's
	- // easy to find them.
	- $result_map = array();
	- $class_names = $root->selectDescendantsOfType('n_CLASS_NAME');
	- foreach ($class_names as $class_name) {
	- foreach ($class_name->getTokens() as $key => $token) {
	- if (isset($builtin_class_tokens[$token->getValue()])) {
	- // This is something like "self::method()".
	- continue;
	- }
	- $result_map[$key] = array(
	- 'nc', // "Name, Class"
	- 'symbol' => $class_name->getConcreteString(),
	- );
	- }
	- }
	-
	- // Function name symbols appear in:
	- // f()
	-
	- $function_calls = $root->selectDescendantsOfType('n_FUNCTION_CALL');
	- foreach ($function_calls as $call) {
	- $call = $call->getChildByIndex(0);
	- if ($call->getTypeName() == 'n_SYMBOL_NAME') {
	- // This is a normal function call, not some $f() shenanigans.
	- foreach ($call->getTokens() as $key => $token) {
	- $result_map[$key] = array(
	- 'nf', // "Name, Function"
	- 'symbol' => $call->getConcreteString(),
	- );
	- }
	- }
	- }
	-
	- // Upon encountering $x->y, link y without context, since $x is unknown.
	-
	- $prop_access = $root->selectDescendantsOfType('n_OBJECT_PROPERTY_ACCESS');
	- foreach ($prop_access as $access) {
	- $right = $access->getChildByIndex(1);
	- if ($right->getTypeName() == 'n_INDEX_ACCESS') {
	- // otherwise $x->y[0] doesn't get highlighted
	- $right = $right->getChildByIndex(0);
	- }
	- if ($right->getTypeName() == 'n_STRING') {
	- foreach ($right->getTokens() as $key => $token) {
	- $result_map[$key] = array(
	- 'na', // "Name, Attribute"
	- 'symbol' => $right->getConcreteString(),
	- );
	- }
	- }
	- }
	-
	- // Upon encountering x::y, try to link y with context x.
	-
	- $static_access = $root->selectDescendantsOfType('n_CLASS_STATIC_ACCESS');
	- foreach ($static_access as $access) {
	- $class = $access->getChildByIndex(0);
	- $right = $access->getChildByIndex(1);
	- if ($class->getTypeName() == 'n_CLASS_NAME' &&
	- ($right->getTypeName() == 'n_STRING' \|\|
	- $right->getTypeName() == 'n_VARIABLE')) {
	- $classname = head($class->getTokens())->getValue();
	- $result = array(
	- 'na',
	- 'symbol' => ltrim($right->getConcreteString(), '$'),
	- );
	- if (!isset($builtin_class_tokens[$classname])) {
	- $result['context'] = $classname;
	- }
	- foreach ($right->getTokens() as $key => $token) {
	- $result_map[$key] = $result;
	- }
	- }
	- }
	-
	- return $result_map;
	- }
	-
	-}
	diff --git a/src/parser/PhutilPygmentizeParser.php b/src/parser/PhutilPygmentizeParser.php
	deleted file mode 100644
	--- a/src/parser/PhutilPygmentizeParser.php
	+++ /dev/null
	@@ -1,83 +0,0 @@
	-<?php
	-
	-/**
	- * Parser that converts `pygmetize` output or similar HTML blocks from "class"
	- * attributes to "style" attributes.
	- */
	-final class PhutilPygmentizeParser extends Phobject {
	-
	- private $map = array();
	-
	- public function setMap(array $map) {
	- $this->map = $map;
	- return $this;
	- }
	-
	- public function getMap() {
	- return $this->map;
	- }
	-
	- public function parse($block) {
	- $class_look = 'class="';
	- $class_len = strlen($class_look);
	-
	- $class_start = null;
	-
	- $map = $this->map;
	-
	- $len = strlen($block);
	- $out = '';
	- $mode = 'text';
	- for ($ii = 0; $ii < $len; $ii++) {
	- $c = $block[$ii];
	- switch ($mode) {
	- case 'text':
	- // We're in general text between tags, and just passing characers
	- // through unmodified.
	- if ($c == '<') {
	- $mode = 'tag';
	- }
	- $out .= $c;
	- break;
	- case 'tag':
	- // We're inside a tag, and looking for `class="` so we can rewrite
	- // it.
	- if ($c == '>') {
	- $mode = 'text';
	- }
	- if ($c == 'c') {
	- if (!substr_compare($block, $class_look, $ii, $class_len)) {
	- $mode = 'class';
	- $ii += $class_len;
	- $class_start = $ii;
	- }
	- }
	-
	- if ($mode != 'class') {
	- $out .= $c;
	- }
	- break;
	- case 'class':
	- // We're inside a `class="..."` tag, and looking for the ending quote
	- // so we can replace it.
	- if ($c == '"') {
	- $class = substr($block, $class_start, $ii - $class_start);
	-
	- // If this class is present in the map, rewrite it into an inline
	- // style attribute.
	- if (isset($map[$class])) {
	- $out .= 'style="'.phutil_escape_html($map[$class]).'"';
	- } else {
	- $out .= 'class="'.$class.'"';
	- }
	-
	- $mode = 'tag';
	- }
	- break;
	- }
	- }
	-
	- return $out;
	- }
	-
	-}
	diff --git a/src/parser/__tests__/PhutilPygmentizeParserTestCase.php b/src/parser/__tests__/PhutilPygmentizeParserTestCase.php
	deleted file mode 100644
	--- a/src/parser/__tests__/PhutilPygmentizeParserTestCase.php
	+++ /dev/null
	@@ -1,43 +0,0 @@
	-<?php
	-
	-final class PhutilPygmentizeParserTestCase extends PhutilTestCase {
	-
	- public function testPygmentizeParser() {
	- $this->tryParser(
	- '',
	- '',
	- array(),
	- pht('Empty'));
	-
	- $this->tryParser(
	- '<span class="mi">1</span>',
	- '<span style="color: #ff0000">1</span>',
	- array(
	- 'mi' => 'color: #ff0000',
	- ),
	- pht('Simple'));
	-
	- $this->tryParser(
	- '<span class="mi">1</span>',
	- '<span class="mi">1</span>',
	- array(),
	- pht('Missing Class'));
	-
	- $this->tryParser(
	- '<span data-symbol-name="X" class="nc">X</span>',
	- '<span data-symbol-name="X" style="color: #ff0000">X</span>',
	- array(
	- 'nc' => 'color: #ff0000',
	- ),
	- pht('Extra Attribute'));
	- }
	-
	- private function tryParser($input, $expect, array $map, $label) {
	- $actual = id(new PhutilPygmentizeParser())
	- ->setMap($map)
	- ->parse($input);
	-
	- $this->assertEqual($expect, $actual, pht('Pygmentize Parser: %s', $label));
	- }
	-
	-}
	diff --git a/src/sprites/PhutilSprite.php b/src/sprites/PhutilSprite.php
	deleted file mode 100644
	--- a/src/sprites/PhutilSprite.php
	+++ /dev/null
	@@ -1,76 +0,0 @@
	-<?php
	-
	-/**
	- * NOTE: This is very new and unstable.
	- */
	-final class PhutilSprite extends Phobject {
	-
	- private $sourceFiles = array();
	- private $sourceX;
	- private $sourceY;
	- private $sourceW;
	- private $sourceH;
	- private $targetCSS;
	- private $spriteSheet;
	- private $name;
	-
	- public function setName($name) {
	- $this->name = $name;
	- return $this;
	- }
	-
	- public function getName() {
	- return $this->name;
	- }
	-
	- public function setTargetCSS($target_css) {
	- $this->targetCSS = $target_css;
	- return $this;
	- }
	-
	- public function getTargetCSS() {
	- return $this->targetCSS;
	- }
	-
	- public function setSourcePosition($x, $y) {
	- $this->sourceX = $x;
	- $this->sourceY = $y;
	- return $this;
	- }
	-
	- public function setSourceSize($w, $h) {
	- $this->sourceW = $w;
	- $this->sourceH = $h;
	- return $this;
	- }
	-
	- public function getSourceH() {
	- return $this->sourceH;
	- }
	-
	- public function getSourceW() {
	- return $this->sourceW;
	- }
	-
	- public function getSourceY() {
	- return $this->sourceY;
	- }
	-
	- public function getSourceX() {
	- return $this->sourceX;
	- }
	-
	- public function setSourceFile($source_file, $scale = 1) {
	- $this->sourceFiles[$scale] = $source_file;
	- return $this;
	- }
	-
	- public function getSourceFile($scale) {
	- if (empty($this->sourceFiles[$scale])) {
	- throw new Exception(pht("No source file for scale '%s'!", $scale));
	- }
	-
	- return $this->sourceFiles[$scale];
	- }
	-
	-}
	diff --git a/src/sprites/PhutilSpriteSheet.php b/src/sprites/PhutilSpriteSheet.php
	deleted file mode 100644
	--- a/src/sprites/PhutilSpriteSheet.php
	+++ /dev/null
	@@ -1,385 +0,0 @@
	-<?php
	-
	-/**
	- * NOTE: This is very new and unstable.
	- */
	-final class PhutilSpriteSheet extends Phobject {
	-
	- const MANIFEST_VERSION = 1;
	-
	- const TYPE_STANDARD = 'standard';
	- const TYPE_REPEAT_X = 'repeat-x';
	- const TYPE_REPEAT_Y = 'repeat-y';
	-
	- private $sprites = array();
	- private $sources = array();
	- private $hashes = array();
	- private $cssHeader;
	- private $generated;
	- private $scales = array(1);
	- private $type = self::TYPE_STANDARD;
	- private $basePath;
	-
	- private $css;
	- private $images;
	-
	- public function addSprite(PhutilSprite $sprite) {
	- $this->generated = false;
	- $this->sprites[] = $sprite;
	- return $this;
	- }
	-
	- public function setCSSHeader($header) {
	- $this->generated = false;
	- $this->cssHeader = $header;
	- return $this;
	- }
	-
	- public function setScales(array $scales) {
	- $this->scales = array_values($scales);
	- return $this;
	- }
	-
	- public function getScales() {
	- return $this->scales;
	- }
	-
	- public function setSheetType($type) {
	- $this->type = $type;
	- return $this;
	- }
	-
	- public function setBasePath($base_path) {
	- $this->basePath = $base_path;
	- return $this;
	- }
	-
	- private function generate() {
	- if ($this->generated) {
	- return;
	- }
	-
	- $multi_row = true;
	- $multi_col = true;
	- $margin_w = 1;
	- $margin_h = 1;
	-
	- $type = $this->type;
	- switch ($type) {
	- case self::TYPE_STANDARD:
	- break;
	- case self::TYPE_REPEAT_X:
	- $multi_col = false;
	- $margin_w = 0;
	-
	- $width = null;
	- foreach ($this->sprites as $sprite) {
	- if ($width === null) {
	- $width = $sprite->getSourceW();
	- } else if ($width !== $sprite->getSourceW()) {
	- throw new Exception(
	- pht(
	- "All sprites in a '%s' sheet must have the same width.",
	- 'repeat-x'));
	- }
	- }
	- break;
	- case self::TYPE_REPEAT_Y:
	- $multi_row = false;
	- $margin_h = 0;
	-
	- $height = null;
	- foreach ($this->sprites as $sprite) {
	- if ($height === null) {
	- $height = $sprite->getSourceH();
	- } else if ($height !== $sprite->getSourceH()) {
	- throw new Exception(
	- pht(
	- "All sprites in a '%s' sheet must have the same height.",
	- 'repeat-y'));
	- }
	- }
	- break;
	- default:
	- throw new Exception(pht("Unknown sprite sheet type '%s'!", $type));
	- }
	-
	-
	- $css = array();
	- if ($this->cssHeader) {
	- $css[] = $this->cssHeader;
	- }
	-
	- $out_w = 0;
	- $out_h = 0;
	-
	- // Lay out the sprite sheet. We attempt to build a roughly square sheet
	- // so it's easier to manage, since 2000x20 is more cumbersome for humans
	- // to deal with than 200x200.
	- //
	- // To do this, we use a simple greedy algorithm, adding sprites one at a
	- // time. For each sprite, if the sheet is at least as wide as it is tall
	- // we create a new row. Otherwise, we try to add it to an existing row.
	- //
	- // This isn't optimal, but does a reasonable job in most cases and isn't
	- // too messy.
	-
	- // Group the sprites by their sizes. We lay them out in the sheet as
	- // boxes, but then put them into the boxes in the order they were added
	- // so similar sprites end up nearby on the final sheet.
	- $boxes = array();
	- foreach (array_reverse($this->sprites) as $sprite) {
	- $s_w = $sprite->getSourceW() + $margin_w;
	- $s_h = $sprite->getSourceH() + $margin_h;
	- $boxes[$s_w][$s_h][] = $sprite;
	- }
	-
	- $rows = array();
	- foreach ($this->sprites as $sprite) {
	- $s_w = $sprite->getSourceW() + $margin_w;
	- $s_h = $sprite->getSourceH() + $margin_h;
	-
	- // Choose a row for this sprite.
	- $maybe = array();
	- foreach ($rows as $key => $row) {
	- if ($row['h'] < $s_h) {
	- // We can only add it to a row if the row is at least as tall as the
	- // sprite.
	- continue;
	- }
	- // We prefer rows which have the same height as the sprite, and then
	- // rows which aren't yet very wide.
	- $wasted_v = ($row['h'] - $s_h);
	- $wasted_h = ($row['w'] / $out_w);
	- $maybe[$key] = $wasted_v + $wasted_h;
	- }
	-
	- $row_key = null;
	- if ($maybe && $multi_col) {
	- // If there were any candidate rows, pick the best one.
	- asort($maybe);
	- $row_key = head_key($maybe);
	- }
	-
	- if ($row_key !== null && $multi_row) {
	- // If there's a candidate row, but adding the sprite to it would make
	- // the sprite wider than it is tall, create a new row instead. This
	- // generally keeps the sprite square-ish.
	- if ($rows[$row_key]['w'] + $s_w > $out_h) {
	- $row_key = null;
	- }
	- }
	-
	- if ($row_key === null) {
	- // Add a new row.
	- $rows[] = array(
	- 'w' => 0,
	- 'h' => $s_h,
	- 'boxes' => array(),
	- );
	- $row_key = last_key($rows);
	- $out_h += $s_h;
	- }
	-
	- // Add the sprite box to the row.
	- $row = $rows[$row_key];
	- $row['w'] += $s_w;
	- $row['boxes'][] = array($s_w, $s_h);
	- $rows[$row_key] = $row;
	-
	- $out_w = max($row['w'], $out_w);
	- }
	-
	- $images = array();
	- foreach ($this->scales as $scale) {
	- $img = imagecreatetruecolor($out_w * $scale, $out_h * $scale);
	- imagesavealpha($img, true);
	- imagefill($img, 0, 0, imagecolorallocatealpha($img, 0, 0, 0, 127));
	-
	- $images[$scale] = $img;
	- }
	-
	-
	- // Put the shorter rows first. At the same height, put the wider rows first.
	- // This makes the resulting sheet more human-readable.
	- foreach ($rows as $key => $row) {
	- $rows[$key]['sort'] = $row['h'] + (1 - ($row['w'] / $out_w));
	- }
	- $rows = isort($rows, 'sort');
	-
	- $pos_x = 0;
	- $pos_y = 0;
	- $rules = array();
	- foreach ($rows as $row) {
	- $max_h = 0;
	- foreach ($row['boxes'] as $box) {
	- $sprite = array_pop($boxes[$box[0]][$box[1]]);
	-
	- foreach ($images as $scale => $img) {
	- $src = $this->loadSource($sprite, $scale);
	- imagecopy(
	- $img,
	- $src,
	- $scale * $pos_x, $scale * $pos_y,
	- $scale * $sprite->getSourceX(), $scale * $sprite->getSourceY(),
	- $scale * $sprite->getSourceW(), $scale * $sprite->getSourceH());
	- }
	-
	- $rule = $sprite->getTargetCSS();
	- $cssx = (-$pos_x).'px';
	- $cssy = (-$pos_y).'px';
	-
	- $rules[$sprite->getName()] = "{$rule} {\n".
	- " background-position: {$cssx} {$cssy};\n}";
	-
	- $pos_x += $sprite->getSourceW() + $margin_w;
	- $max_h = max($max_h, $sprite->getSourceH());
	- }
	- $pos_x = 0;
	- $pos_y += $max_h + $margin_h;
	- }
	-
	- // Generate CSS rules in input order.
	- foreach ($this->sprites as $sprite) {
	- $css[] = $rules[$sprite->getName()];
	- }
	-
	- $this->images = $images;
	- $this->css = implode("\n\n", $css)."\n";
	- $this->generated = true;
	- }
	-
	- public function generateImage($path, $scale = 1) {
	- $this->generate();
	- $this->log(pht("Writing sprite '%s'...", $path));
	- imagepng($this->images[$scale], $path);
	- return $this;
	- }
	-
	- public function generateCSS($path) {
	- $this->generate();
	- $this->log(pht("Writing CSS '%s'...", $path));
	-
	- $out = $this->css;
	- $out = str_replace('{X}', imagesx($this->images[1]), $out);
	- $out = str_replace('{Y}', imagesy($this->images[1]), $out);
	-
	- Filesystem::writeFile($path, $out);
	- return $this;
	- }
	-
	- public function needsRegeneration(array $manifest) {
	- return ($this->buildManifest() !== $manifest);
	- }
	-
	- private function buildManifest() {
	- $output = array();
	- foreach ($this->sprites as $sprite) {
	- $output[$sprite->getName()] = array(
	- 'name' => $sprite->getName(),
	- 'rule' => $sprite->getTargetCSS(),
	- 'hash' => $this->loadSourceHash($sprite),
	- );
	- }
	-
	- ksort($output);
	-
	- $data = array(
	- 'version' => self::MANIFEST_VERSION,
	- 'sprites' => $output,
	- 'scales' => $this->scales,
	- 'header' => $this->cssHeader,
	- 'type' => $this->type,
	- );
	-
	- return $data;
	- }
	-
	- public function generateManifest($path) {
	- $data = $this->buildManifest();
	-
	- $json = new PhutilJSON();
	- $data = $json->encodeFormatted($data);
	- Filesystem::writeFile($path, $data);
	- return $this;
	- }
	-
	- private function log($message) {
	- echo $message."\n";
	- }
	-
	- private function loadSourceHash(PhutilSprite $sprite) {
	- $inputs = array();
	-
	- foreach ($this->scales as $scale) {
	- $file = $sprite->getSourceFile($scale);
	-
	- // If two users have a project in different places, like:
	- //
	- // /home/alincoln/project
	- // /home/htaft/project
	- //
	- // ...we want to ignore the `/home/alincoln` part when hashing the sheet,
	- // since the sprites don't change when the project directory moves. If
	- // the base path is set, build the hashes using paths relative to the
	- // base path.
	-
	- $file_key = $file;
	- if ($this->basePath) {
	- $file_key = Filesystem::readablePath($file, $this->basePath);
	- }
	-
	- if (empty($this->hashes[$file_key])) {
	- $this->hashes[$file_key] = md5(Filesystem::readFile($file));
	- }
	-
	- $inputs[] = $file_key;
	- $inputs[] = $this->hashes[$file_key];
	- }
	-
	- $inputs[] = $sprite->getSourceX();
	- $inputs[] = $sprite->getSourceY();
	- $inputs[] = $sprite->getSourceW();
	- $inputs[] = $sprite->getSourceH();
	-
	- return md5(implode(':', $inputs));
	- }
	-
	- private function loadSource(PhutilSprite $sprite, $scale) {
	- $file = $sprite->getSourceFile($scale);
	- if (empty($this->sources[$file])) {
	- $data = Filesystem::readFile($file);
	- $image = imagecreatefromstring($data);
	- $this->sources[$file] = array(
	- 'image' => $image,
	- 'x' => imagesx($image),
	- 'y' => imagesy($image),
	- );
	- }
	-
	- $s_w = $sprite->getSourceW() * $scale;
	- $i_w = $this->sources[$file]['x'];
	- if ($s_w > $i_w) {
	- throw new Exception(
	- pht(
	- "Sprite source for '%s' is too small (expected width %d, found %d).",
	- $file,
	- $s_w,
	- $i_w));
	- }
	-
	- $s_h = $sprite->getSourceH() * $scale;
	- $i_h = $this->sources[$file]['y'];
	- if ($s_h > $i_h) {
	- throw new Exception(
	- pht(
	- "Sprite source for '%s' is too small (expected height %d, found %d).",
	- $file,
	- $s_h,
	- $i_h));
	- }
	-
	- return $this->sources[$file]['image'];
	- }
	-
	-}
	diff --git a/src/utils/utils.php b/src/utils/utils.php
	--- a/src/utils/utils.php
	+++ b/src/utils/utils.php
	@@ -890,6 +890,9 @@
	* @param string Block of text to be split into lines.
	* @param bool If true, retain line endings in result strings.
	* @return list List of lines.
	+ *
	+ * @phutil-external-symbol class PhutilSafeHTML
	+ * @phutil-external-symbol function phutil_safe_html
	*/
	function phutil_split_lines($corpus, $retain_endings = true) {
	if (!strlen($corpus)) {
	@@ -910,7 +913,10 @@
	}

	if ($corpus instanceof PhutilSafeHTML) {
	- return array_map('phutil_safe_html', $lines);
	+ foreach ($lines as $key => $line) {
	+ $lines[$key] = phutil_safe_html($line);
	+ }
	+ return $lines;
	}

	return $lines;
	@@ -1843,3 +1849,72 @@

	return true;
	}
	+
	+
	+/**
	+ * Escape text for inclusion in a URI or a query parameter. Note that this
	+ * method does NOT escape '/', because "%2F" is invalid in paths and Apache
	+ * will automatically 404 the page if it's present. This will produce correct
	+ * (the URIs will work) and desirable (the URIs will be readable) behavior in
	+ * these cases:
	+ *
	+ * '/path/?param='.phutil_escape_uri($string); # OK: Query Parameter
	+ * '/path/to/'.phutil_escape_uri($string); # OK: URI Suffix
	+ *
	+ * It will potentially produce the WRONG behavior in this special case:
	+ *
	+ * COUNTEREXAMPLE
	+ * '/path/to/'.phutil_escape_uri($string).'/thing/'; # BAD: URI Infix
	+ *
	+ * In this case, any '/' characters in the string will not be escaped, so you
	+ * will not be able to distinguish between the string and the suffix (unless
	+ * you have more information, like you know the format of the suffix). For infix
	+ * URI components, use @{function:phutil_escape_uri_path_component} instead.
	+ *
	+ * @param string Some string.
	+ * @return string URI encoded string, except for '/'.
	+ */
	+function phutil_escape_uri($string) {
	+ return str_replace('%2F', '/', rawurlencode($string));
	+}
	+
	+
	+/**
	+ * Escape text for inclusion as an infix URI substring. See discussion at
	+ * @{function:phutil_escape_uri}. This function covers an unusual special case;
	+ * @{function:phutil_escape_uri} is usually the correct function to use.
	+ *
	+ * This function will escape a string into a format which is safe to put into
	+ * a URI path and which does not contain '/' so it can be correctly parsed when
	+ * embedded as a URI infix component.
	+ *
	+ * However, you MUST decode the string with
	+ * @{function:phutil_unescape_uri_path_component} before it can be used in the
	+ * application.
	+ *
	+ * @param string Some string.
	+ * @return string URI encoded string that is safe for infix composition.
	+ */
	+function phutil_escape_uri_path_component($string) {
	+ return rawurlencode(rawurlencode($string));
	+}
	+
	+
	+/**
	+ * Unescape text that was escaped by
	+ * @{function:phutil_escape_uri_path_component}. See
	+ * @{function:phutil_escape_uri} for discussion.
	+ *
	+ * Note that this function is NOT the inverse of
	+ * @{function:phutil_escape_uri_path_component}! It undoes additional escaping
	+ * which is added to survive the implied unescaping performed by the webserver
	+ * when interpreting the request.
	+ *
	+ * @param string Some string emitted
	+ * from @{function:phutil_escape_uri_path_component} and
	+ * then accessed via a web server.
	+ * @return string Original string.
	+ */
	+function phutil_unescape_uri_path_component($string) {
	+ return rawurldecode($string);
	+}

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