urisprintf.php
ed335c485c0aproduction

urisprintf.php
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			<?php

			/**
			* Format a URI. This function behaves like `sprintf`, except that all the
			* normal conversions (like "%s") will be properly escaped, and additional
			* conversions are supported:
			*
			* %s (String)
			* Escapes text for use in a URI.
			*
			* %p (Path Component)
			* Escapes text for use in a URI path component.
			*
			* %R (Raw String)
			* Inserts raw, unescaped text. DANGEROUS!
			*/
			function urisprintf($pattern /* , ... */) {
			$args = func_get_args();
			return xsprintf('xsprintf_uri', null, $args);
			}

			function vurisprintf($pattern, array $argv) {
			array_unshift($argv, $pattern);
			return call_user_func_array('urisprintf', $argv);
			}

			/**
			* @{function:urisprintf} callback for URI encoding.
			*/
			function xsprintf_uri($userdata, &$pattern, &$pos, &$value, &$length) {
			$type = $pattern[$pos];

			switch ($type) {
			case 's':
			$value = phutil_escape_uri($value);
			$type = 's';
			break;

			case 'p':
			$value = phutil_escape_uri_path_component($value);
			$type = 's';
			break;

			case 'R':
			$type = 's';
			break;
			}

			$pattern[$pos] = $type;
			}