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	diff --git a/scripts/symbols/generate_ctags_symbols.php b/scripts/symbols/generate_ctags_symbols.php
	index 15bc14b481..9a8ee30604 100755
	--- a/scripts/symbols/generate_ctags_symbols.php
	+++ b/scripts/symbols/generate_ctags_symbols.php
	@@ -1,124 +1,124 @@
	#!/usr/bin/env php
	<?php

	$root = dirname(dirname(dirname(__FILE__)));
	require_once $root.'/scripts/__init_script__.php';

	if (ctags_check_executable() == false) {
	echo phutil_console_format(
	"Could not find Exuberant ctags. Make sure it is installed and\n".
	"available in executable path.\n\n".
	"Exuberant ctags project page: http://ctags.sourceforge.net/\n");
	exit(1);
	}

	if ($argc !== 1 \|\| posix_isatty(STDIN)) {
	echo phutil_console_format(
	"usage: find . -type f -name '*.py' \| ./generate_ctags_symbols.php\n");
	exit(1);
	}

	$input = file_get_contents('php://stdin');
	$input = trim($input);
	$input = explode("\n", $input);

	$data = array();
	$futures = array();

	foreach ($input as $file) {
	$file = Filesystem::readablePath($file);
	$futures[$file] = ctags_get_parser_future($file);
	}

	foreach (Futures($futures)->limit(8) as $file => $future) {
	$tags = $future->resolve();
	$tags = explode("\n", $tags[1]);

	foreach ($tags as $tag) {
	$parts = explode(";", $tag);
	// skip lines that we can not parse
	if (count($parts) < 2) {
	continue;
	}

	// split ctags information
	$tag_info = explode("\t", $parts[0]);
	// split exuberant ctags "extension fields" (additional information)
	$parts[1] = trim($parts[1], "\t \"");
	$extension_fields = explode("\t", $parts[1]);

	// skip lines that we can not parse
	if (count($tag_info) < 3 \|\| count($extension_fields) < 2) {
	continue;
	}

	// default $context to empty
	$extension_fields[] = '';
	list($token, $file_path, $line_num) = $tag_info;
	list($type, $language, $context) = $extension_fields;

	// skip lines with tokens containing a space
	if (strpos($token, ' ') !== false) {
	continue;
	}

	// strip "language:"
	$language = substr($language, 9);

	// To keep consistent with "Separate with commas, for example: php, py"
	// in Arcanist Project edit form.
	$language = str_ireplace("python", "py", $language);

	// also, "normalize" c++ and c#
	$language = str_ireplace("c++", "cpp", $language);
	- $language = str_ireplace("c#", "csharp", $language);
	+ $language = str_ireplace("c#", "cs", $language);

	// Ruby has "singleton method", for example
	$type = substr(str_replace(' ', '_', $type), 0, 12);
	// class:foo, struct:foo, union:foo, enum:foo, ...
	$context = last(explode(':', $context, 2));

	$ignore = array(
	'variable' => true,
	);
	if (empty($ignore[$type])) {
	print_symbol($file_path, $line_num, $type, $token, $context, $language);
	}
	}
	}

	function ctags_get_parser_future($file_path) {
	$future = new ExecFuture('ctags -n --fields=Kls -o - %s',
	$file_path);
	return $future;
	}

	function ctags_check_executable() {
	$future = new ExecFuture('ctags --version');
	$result = $future->resolve();

	if (empty($result[1])) {
	return false;
	}

	return true;
	}

	function print_symbol($file, $line_num, $type, $token, $context, $language) {
	// get rid of relative path
	$file = explode('/', $file);
	if ($file[0] == '.' \|\| $file[0] == "..") {
	array_shift($file);
	}
	$file = '/' . implode('/', $file);

	$parts = array(
	$context,
	$token,
	$type,
	strtolower($language),
	$line_num,
	$file,
	);
	echo implode(' ', $parts)."\n";
	}

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