--- /dev/null
+<?php
+/**
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/**
+ * @package Avro
+ */
+
+/**
+ * Avro library code debugging functions
+ * @package Avro
+ */
+class AvroDebug
+{
+
+ /**
+ * @var int high debug level
+ */
+ const DEBUG5 = 5;
+ /**
+ * @var int low debug level
+ */
+ const DEBUG1 = 1;
+ /**
+ * @var int current debug level
+ */
+ const DEBUG_LEVEL = self::DEBUG1;
+
+ /**
+ * @var int $debug_level
+ * @returns boolean true if the given $debug_level is equivalent
+ * or more verbose than than the current debug level
+ * and false otherwise.
+ */
+ static function is_debug($debug_level=self::DEBUG1)
+ {
+ return (self::DEBUG_LEVEL >= $debug_level);
+ }
+
+ /**
+ * @param string $format format string for the given arguments. Passed as is
+ * to <code>vprintf</code>.
+ * @param array $args array of arguments to pass to vsprinf.
+ * @param int $debug_level debug level at which to print this statement
+ * @returns boolean true
+ */
+ static function debug($format, $args, $debug_level=self::DEBUG1)
+ {
+ if (self::is_debug($debug_level))
+ vprintf($format . "\n", $args);
+ return true;
+ }
+
+ /**
+ * @param string $str
+ * @returns string[] array of hex representation of each byte of $str
+ */
+ static function hex_array($str) { return self::bytes_array($str); }
+
+ /**
+ * @param string $str
+ * @param string $joiner string used to join
+ * @returns string hex-represented bytes of each byte of $str
+ joined by $joiner
+ */
+ static function hex_string($str, $joiner=' ')
+ {
+ return join($joiner, self::hex_array($str));
+ }
+
+ /**
+ * @param string $str
+ * @param string $format format to represent bytes
+ * @returns string[] array of each byte of $str formatted using $format
+ */
+ static function bytes_array($str, $format='x%02x')
+ {
+ $x = array();
+ foreach (str_split($str) as $b)
+ $x []= sprintf($format, ord($b));
+ return $x;
+ }
+
+ /**
+ * @param string $str
+ * @returns string[] array of bytes of $str represented in decimal format ('%3d')
+ */
+ static function dec_array($str) { return self::bytes_array($str, '%3d'); }
+
+ /**
+ * @param string $str
+ * @param string $joiner string to join bytes of $str
+ * @returns string of bytes of $str represented in decimal format
+ * @uses dec_array()
+ */
+ static function dec_string($str, $joiner = ' ')
+ {
+ return join($joiner, self::dec_array($str));
+ }
+
+ /**
+ * @param string $str
+ * @param string $format one of 'ctrl', 'hex', or 'dec' for control,
+ hexadecimal, or decimal format for bytes.
+ - ctrl: ASCII control characters represented as text.
+ For example, the null byte is represented as 'NUL'.
+ Visible ASCII characters represent themselves, and
+ others are represented as a decimal ('%03d')
+ - hex: bytes represented in hexadecimal ('%02X')
+ - dec: bytes represented in decimal ('%03d')
+ * @returns string[] array of bytes represented in the given format.
+ */
+ static function ascii_array($str, $format='ctrl')
+ {
+ if (!in_array($format, array('ctrl', 'hex', 'dec')))
+ throw new AvroException('Unrecognized format specifier');
+
+ $ctrl_chars = array('NUL', 'SOH', 'STX', 'ETX', 'EOT', 'ENQ', 'ACK', 'BEL',
+ 'BS', 'HT', 'LF', 'VT', 'FF', 'CR', 'SO', 'SI',
+ 'DLE', 'DC1', 'DC2', 'DC3', 'DC4', 'NAK', 'SYN', 'ETB',
+ 'CAN', 'EM', 'SUB', 'ESC', 'FS', 'GS', 'RS', 'US');
+ $x = array();
+ foreach (str_split($str) as $b)
+ {
+ $db = ord($b);
+ if ($db < 32)
+ {
+ switch ($format)
+ {
+ case 'ctrl':
+ $x []= str_pad($ctrl_chars[$db], 3, ' ', STR_PAD_LEFT);
+ break;
+ case 'hex':
+ $x []= sprintf("x%02X", $db);
+ break;
+ case 'dec':
+ $x []= str_pad($db, 3, '0', STR_PAD_LEFT);
+ break;
+ }
+ }
+ else if ($db < 127)
+ $x []= " $b";
+ else if ($db == 127)
+ {
+ switch ($format)
+ {
+ case 'ctrl':
+ $x []= 'DEL';
+ break;
+ case 'hex':
+ $x []= sprintf("x%02X", $db);
+ break;
+ case 'dec':
+ $x []= str_pad($db, 3, '0', STR_PAD_LEFT);
+ break;
+ }
+ }
+ else
+ if ('hex' == $format)
+ $x []= sprintf("x%02X", $db);
+ else
+ $x []= str_pad($db, 3, '0', STR_PAD_LEFT);
+ }
+ return $x;
+ }
+
+ /**
+ * @param string $str
+ * @param string $format one of 'ctrl', 'hex', or 'dec'.
+ * See {@link self::ascii_array()} for more description
+ * @param string $joiner
+ * @returns string of bytes joined by $joiner
+ * @uses ascii_array()
+ */
+ static function ascii_string($str, $format='ctrl', $joiner = ' ')
+ {
+ return join($joiner, self::ascii_array($str, $format));
+ }
+}
scripts.mit.edu / autoinstallsdev / mediawiki.git / blobdiff