| 1 | <?php
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| 2 | // +-----------------------------------------------------------------------+
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| 3 | // | Copyright (c) 2002-2005, Richard Heyes |
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| 4 | // | All rights reserved. |
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| 5 | // | |
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| 6 | // | Redistribution and use in source and binary forms, with or without |
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| 7 | // | modification, are permitted provided that the following conditions |
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| 8 | // | are met: |
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| 9 | // | |
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| 10 | // | o Redistributions of source code must retain the above copyright |
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| 11 | // | notice, this list of conditions and the following disclaimer. |
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| 12 | // | o Redistributions in binary form must reproduce the above copyright |
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| 13 | // | notice, this list of conditions and the following disclaimer in the |
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| 14 | // | documentation and/or other materials provided with the distribution.|
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| 15 | // | o The names of the authors may not be used to endorse or promote |
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| 16 | // | products derived from this software without specific prior written |
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| 17 | // | permission. |
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| 18 | // | |
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| 19 | // | THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
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| 20 | // | "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
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| 21 | // | LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
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| 22 | // | A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
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| 23 | // | OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
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| 24 | // | SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
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| 25 | // | LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
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| 26 | // | DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
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| 27 | // | THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
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| 28 | // | (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
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| 29 | // | OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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| 30 | // | |
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| 31 | // +-----------------------------------------------------------------------+
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| 32 | // | Author: Richard Heyes <richard@phpguru.org> |
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| 33 | // +-----------------------------------------------------------------------+
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| 34 | //
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| 35 | // $Id$
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| 36 | //
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| 37 | // Search and Replace Utility
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| 38 | //
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| 39 |
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| 40 | /**
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| 41 | * Search and Replace Utility
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| 42 | *
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| 43 | *
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| 44 | * @author Richard Heyes <richard@phpguru.org>
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| 45 | * @version 1.0
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| 46 | * @package File
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| 47 | */
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| 48 | class File_SearchReplace
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| 49 | {
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| 50 |
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| 51 | // {{{ Properties (All private)
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| 52 |
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| 53 | var $find;
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| 54 | var $replace;
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| 55 | var $files;
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| 56 | var $directories;
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| 57 | var $include_subdir;
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| 58 | var $ignore_lines;
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| 59 | var $ignore_sep;
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| 60 | var $occurences;
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| 61 | var $search_function;
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| 62 | var $php5;
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| 63 | var $last_error;
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| 64 |
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| 65 | // }}}
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| 66 | // {{{ Constructor
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| 67 |
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| 68 | /**
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| 69 | * Sets up the object
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| 70 | *
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| 71 | * @access public
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| 72 | * @param string $find The string/regex to find.
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| 73 | * @param string $replace The string/regex to replace $find with.
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| 74 | * @param array $files The file(s) to perform this operation on.
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| 75 | * @param array $directories (optional) The directories to perform this operation on.
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| 76 | * @param bool $include_subdir If performing on directories, whether to traverse subdirectories.
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| 77 | * @param array $ignore_lines Ignore lines beginning with any of the strings in this array. This
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| 78 | * feature only works with the "normal" search.
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| 79 | */
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| 80 | function File_SearchReplace($find, $replace, $files, $directories = '', $include_subdir = TRUE, $ignore_lines = array())
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| 81 | {
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| 82 |
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| 83 | $this->find = $find;
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| 84 | $this->replace = $replace;
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| 85 | $this->files = $files;
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| 86 | $this->directories = $directories;
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| 87 | $this->include_subdir = $include_subdir;
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| 88 | $this->ignore_lines = (array) $ignore_lines;
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| 89 |
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| 90 | $this->occurences = 0;
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| 91 | $this->search_function = 'search';
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| 92 | $this->php5 = (substr(PHP_VERSION, 0, 1) == 5) ? TRUE : FALSE;
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| 93 | $this->last_error = '';
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| 94 |
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| 95 | }
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| 96 |
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| 97 | // }}}
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| 98 | // {{{ getNumOccurences()
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| 99 |
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| 100 | /**
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| 101 | * Accessor to return the number of occurences found.
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| 102 | *
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| 103 | * @access public
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| 104 | * @return int Number of occurences found.
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| 105 | */
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| 106 | function getNumOccurences()
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| 107 | {
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| 108 | return $this->occurences;
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| 109 | }
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| 110 |
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| 111 | // }}}
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| 112 | // {{{ getLastError()
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| 113 |
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| 114 | /**
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| 115 | * Accessor for retrieving last error.
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| 116 | *
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| 117 | * @access public
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| 118 | * @return string The last error that occurred, if any.
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| 119 | */
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| 120 | function getLastError()
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| 121 | {
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| 122 | return $this->last_error;
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| 123 | }
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| 124 |
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| 125 | // }}}
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| 126 | // {{{ setFind()
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| 127 |
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| 128 | /**
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| 129 | * Accessor for setting find variable.
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| 130 | *
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| 131 | * @access public
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| 132 | * @param string $find The string/regex to find.
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| 133 | */
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| 134 | function setFind($find)
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| 135 | {
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| 136 | $this->find = $find;
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| 137 | }
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| 138 |
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| 139 | // }}}
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| 140 | // {{{ setReplace()
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| 141 |
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| 142 | /**
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| 143 | * Accessor for setting replace variable.
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| 144 | *
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| 145 | * @access public
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| 146 | * @param string $replace The string/regex to replace the find string/regex with.
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| 147 | */
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| 148 | function setReplace($replace)
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| 149 | {
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| 150 | $this->replace = $replace;
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| 151 | }
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| 152 |
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| 153 | // }}}
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| 154 | // {{{ setFiles()
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| 155 |
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| 156 | /**
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| 157 | * Accessor for setting files variable.
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| 158 | *
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| 159 | * @access public
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| 160 | * @param array $files The file(s) to perform this operation on.
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| 161 | */
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| 162 | function setFiles($files)
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| 163 | {
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| 164 | $this->files = $files;
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| 165 | }
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| 166 |
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| 167 | // }}}
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| 168 | // {{{ setDirectories()
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| 169 |
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| 170 | /**
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| 171 | * Accessor for setting directories variable.
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| 172 | *
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| 173 | * @access public
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| 174 | * @param array $directories The directories to perform this operation on.
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| 175 | */
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| 176 | function setDirectories($directories)
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| 177 | {
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| 178 | $this->directories = $directories;
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| 179 | }
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| 180 |
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| 181 | // }}}
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| 182 | // {{{ setIncludeSubdir
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| 183 |
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| 184 | /**
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| 185 | * Accessor for setting include_subdir variable.
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| 186 | *
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| 187 | * @access public
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| 188 | * @param bool $include_subdir Whether to traverse subdirectories or not.
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| 189 | */
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| 190 | function setIncludeSubdir($include_subdir)
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| 191 | {
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| 192 | $this->include_subdir = $include_subdir;
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| 193 | }
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| 194 |
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| 195 | // }}}
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| 196 | // {{{ setIgnoreLines()
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| 197 |
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| 198 | /**
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| 199 | * Accessor for setting ignore_lines variable.
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| 200 | *
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| 201 | * @access public
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| 202 | * @param array $ignore_lines Ignore lines beginning with any of the strings in this array. This
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| 203 | * feature only works with the "normal" search.
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| 204 | */
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| 205 | function setIgnoreLines($ignore_lines)
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| 206 | {
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| 207 | $this->ignore_lines = $ignore_lines;
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| 208 | }
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| 209 |
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| 210 | // }}}
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| 211 | // {{{ setSearchFunction()
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| 212 |
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| 213 | /**
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| 214 | * Function to determine which search function is used.
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| 215 | *
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| 216 | * @access public
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| 217 | * @param string The search function that should be used. Can be any one of:
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| 218 | * normal - Default search. Goes line by line. Ignore lines feature only works with this type.
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| 219 | * quick - Uses str_replace for straight replacement throughout file. Quickest of the lot.
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| 220 | * preg - Uses preg_replace(), so any regex valid with this function is valid here.
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| 221 | * ereg - Uses ereg_replace(), so any regex valid with this function is valid here.
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| 222 | */
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| 223 | function setSearchFunction($search_function)
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| 224 | {
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| 225 | switch($search_function) {
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| 226 | case 'normal': $this->search_function = 'search';
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| 227 | return TRUE;
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| 228 | break;
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| 229 |
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| 230 | case 'quick' : $this->search_function = 'quickSearch';
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| 231 | return TRUE;
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| 232 | break;
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| 233 |
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| 234 | case 'preg' : $this->search_function = 'pregSearch';
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| 235 | return TRUE;
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| 236 | break;
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| 237 |
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| 238 | case 'ereg' : $this->search_function = 'eregSearch';
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| 239 | return TRUE;
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| 240 | break;
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| 241 |
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| 242 | default : $this->last_error = 'Invalid search function specified';
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| 243 | return FALSE;
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| 244 | break;
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| 245 | }
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| 246 | }
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| 247 |
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| 248 | // }}}
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| 249 | // {{{ search()
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| 250 |
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| 251 | /**
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| 252 | * Default ("normal") search routine.
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| 253 | *
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| 254 | * @access private
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| 255 | * @param string $filename The filename to search and replace upon.
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| 256 | * @return array Will return an array containing the new file contents and the number of occurences.
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| 257 | * Will return FALSE if there are no occurences.
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| 258 | */
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| 259 | function search($filename)
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| 260 | {
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| 261 | $occurences = 0;
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| 262 | $file_array = file($filename);
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| 263 |
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| 264 | if (empty($this->ignore_lines) && $this->php5) { // PHP5 acceleration
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| 265 | $file_array = str_replace($this->find, $this->replace, $file_array, $occurences);
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| 266 |
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| 267 | } else { // str_replace() doesn't return number of occurences in PHP4
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| 268 | // so we need to count them manually and/or filter strings
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| 269 | $ignore_lines_num = count($this->ignore_lines);
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| 270 |
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| 271 | // just for the sake of catching occurences
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| 272 | $local_find = array_values((array) $this->find);
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| 273 | $local_replace = (is_array($this->replace)) ? array_values($this->replace) : $this->replace;
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| 274 |
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| 275 | for ($i=0; $i < count($file_array); $i++) {
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| 276 |
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| 277 | if ($ignore_lines_num > 0) {
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| 278 | for ($j=0; $j < $ignore_lines_num; $j++) {
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| 279 | if (substr($file_array[$i],0,strlen($this->ignore_lines[$j])) == $this->ignore_lines[$j]) continue 2;
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| 280 | }
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| 281 | }
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| 282 |
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| 283 | if ($this->php5) {
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| 284 | $file_array[$i] = str_replace($this->find, $this->replace, $file_array[$i], $counted);
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| 285 | $occurences += $counted;
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| 286 | } else {
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| 287 | foreach ($local_find as $fk => $ff) {
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| 288 | $occurences += substr_count($file_array[$i], $ff);
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| 289 | if (!is_array($local_replace)) {
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| 290 | $fr = $local_replace;
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| 291 | } else {
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| 292 | $fr = (isset($local_replace[$fk])) ? $local_replace[$fk] : "";
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| 293 | }
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| 294 | $file_array[$i] = str_replace($ff, $fr, $file_array[$i]);
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| 295 | }
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| 296 | }
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| 297 | }
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| 298 |
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| 299 | }
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| 300 | if ($occurences > 0) $return = array($occurences, implode('', $file_array)); else $return = FALSE;
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| 301 | return $return;
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| 302 |
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| 303 | }
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| 304 |
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| 305 | // }}}
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| 306 | // {{{ quickSearch()
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| 307 |
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| 308 | /**
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| 309 | * Quick search routine.
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| 310 | *
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| 311 | * @access private
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| 312 | * @param string $filename The filename to search and replace upon.
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| 313 | * @return array Will return an array containing the new file contents and the number of occurences.
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| 314 | * Will return FALSE if there are no occurences.
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| 315 | */
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| 316 | function quickSearch($filename)
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| 317 | {
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| 318 |
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| 319 | clearstatcache();
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| 320 |
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| 321 | $file = fread($fp = fopen($filename, 'r'), max(1, filesize($filename))); fclose($fp);
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| 322 | $local_find = array_values((array) $this->find);
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| 323 | $local_replace = (is_array($this->replace)) ? array_values($this->replace) : $this->replace;
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| 324 |
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| 325 | $occurences = 0;
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| 326 |
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| 327 | // logic is the same as in str_replace function with one exception:
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| 328 | // if <search> is a string and <replacement> is an array - substitution
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| 329 | // is done from the first element of array. str_replace in this case
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| 330 | // usualy fails with notice and returns "ArrayArrayArray..." string
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| 331 | // (this exclusive logic of SearchReplace will not work for php5, though,
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| 332 | // because I haven't decided yet whether it is bug or feature)
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| 333 |
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| 334 | if ($this->php5) {
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| 335 | $file_array[$i] = str_replace($this->find, $this->replace, $file_array[$i], $counted);
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| 336 | $occurences += $counted;
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| 337 | } else {
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| 338 | foreach ($local_find as $fk => $ff) {
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| 339 | $occurences += substr_count($file, $ff);
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| 340 | if (!is_array($local_replace)) {
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| 341 | $fr = $local_replace;
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| 342 | } else {
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| 343 | $fr = (isset($local_replace[$fk])) ? $local_replace[$fk] : "";
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| 344 | }
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| 345 | $file = str_replace($ff, $fr, $file);
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| 346 | }
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| 347 | }
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| 348 |
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| 349 | if ($occurences > 0) $return = array($occurences, $file); else $return = FALSE;
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| 350 | return $return;
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| 351 |
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| 352 | }
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| 353 |
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| 354 | // }}}
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| 355 | // {{{ pregSearch()
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| 356 |
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| 357 | /**
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| 358 | * Preg search routine.
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| 359 | *
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| 360 | * @access private
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| 361 | * @param string $filename The filename to search and replace upon.
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| 362 | * @return array Will return an array containing the new file contents and the number of occurences.
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| 363 | * Will return FALSE if there are no occurences.
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| 364 | */
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| 365 | function pregSearch($filename)
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| 366 | {
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| 367 |
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| 368 | clearstatcache();
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| 369 |
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| 370 | $file = fread($fp = fopen($filename, 'r'), max(1, filesize($filename))); fclose($fp);
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| 371 | $local_find = array_values((array) $this->find);
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| 372 | $local_replace = (is_array($this->replace)) ? array_values($this->replace) : $this->replace;
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| 373 |
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| 374 | $occurences = 0;
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| 375 |
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| 376 | foreach($local_find as $fk => $ff) {
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| 377 | $occurences += preg_match_all($ff, $file, $matches);
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| 378 | if (!is_array($local_replace)) {
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| 379 | $fr = $local_replace;
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| 380 | } else {
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| 381 | $fr = (isset($local_replace[$fk])) ? $local_replace[$fk] : "";
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| 382 | }
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| 383 | $file = preg_replace($ff, $fr, $file);
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| 384 | }
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| 385 |
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| 386 | if ($occurences > 0) $return = array($occurences, $file); else $return = FALSE;
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| 387 | return $return;
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| 388 |
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| 389 | }
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| 390 |
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| 391 | // }}}
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| 392 | // {{{ eregSearch()
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| 393 |
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| 394 | /**
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| 395 | * Ereg search routine.
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| 396 | *
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| 397 | * @access private
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| 398 | * @param string $filename The filename to search and replace upon.
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| 399 | * @return array Will return an array containing the new file contents and the number of occurences.
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| 400 | * Will return FALSE if there are no occurences.
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| 401 | */
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| 402 | function eregSearch($filename)
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| 403 | {
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| 404 |
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| 405 | clearstatcache();
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| 406 |
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| 407 | $file = fread($fp = fopen($filename, 'r'), max(1, filesize($filename))); fclose($fp);
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| 408 | $local_find = array_values((array) $this->find);
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| 409 | $local_replace = (is_array($this->replace)) ? array_values($this->replace) : $this->replace;
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| 410 |
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| 411 | $occurences = 0;
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| 412 |
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| 413 | foreach($local_find as $fk => $ff) {
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| 414 | $occurences += count(split($ff, $file)) - 1;
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| 415 | if (!is_array($local_replace)) {
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| 416 | $fr = $local_replace;
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| 417 | } else {
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| 418 | $fr = (isset($local_replace[$fk])) ? $local_replace[$fk] : "";
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| 419 | }
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| 420 | $file = ereg_replace($ff, $fr, $file);
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| 421 | }
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| 422 |
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| 423 | if ($occurences > 0) $return = array($occurences, $file); else $return = FALSE;
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| 424 | return $return;
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| 425 |
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| 426 | }
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| 427 |
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| 428 | // }}}
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| 429 | // {{{ writeout()
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| 430 |
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| 431 | /**
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| 432 | * Function to writeout the file contents.
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| 433 | *
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| 434 | * @access private
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| 435 | * @param string $filename The filename of the file to write.
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| 436 | * @param string $contents The contents to write to the file.
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| 437 | */
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| 438 | function writeout($filename, $contents)
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| 439 | {
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| 440 |
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| 441 | if ($fp = @fopen($filename, 'w')) {
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| 442 | flock($fp,2);
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| 443 | fwrite($fp, $contents);
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| 444 | flock($fp,3);
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| 445 | fclose($fp);
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| 446 | } else {
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| 447 | $this->last_error = 'Could not open file: '.$filename;
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| 448 | }
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| 449 |
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| 450 | }
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| 451 |
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| 452 | // }}}
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| 453 | // {{{ doFiles()
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| 454 |
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| 455 | /**
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| 456 | * Function called by doSearch() to go through any files that need searching.
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| 457 | *
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| 458 | * @access private
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| 459 | * @param string $ser_func The search function to use.
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| 460 | */
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| 461 | function doFiles($ser_func)
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| 462 | {
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| 463 | if (!is_array($this->files)) $this->files = explode(',', $this->files);
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| 464 | for ($i=0; $i<count($this->files); $i++) {
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| 465 | if ($this->files[$i] == '.' OR $this->files[$i] == '..') continue;
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| 466 | if (is_dir($this->files[$i]) == TRUE) continue;
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| 467 | $newfile = $this->$ser_func($this->files[$i]);
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| 468 | if (is_array($newfile) == TRUE){
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| 469 | $this->writeout($this->files[$i], $newfile[1]);
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| 470 | $this->occurences += $newfile[0];
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| 471 | }
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| 472 | }
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| 473 | }
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| 474 |
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| 475 | // }}}
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| 476 | // {{{ doDirectories()
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| 477 |
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| 478 | /**
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| 479 | * Function called by doSearch() to go through any directories that need searching.
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| 480 | *
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| 481 | * @access private
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| 482 | * @param string $ser_func The search function to use.
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| 483 | */
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| 484 | function doDirectories($ser_func)
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| 485 | {
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| 486 | if (!is_array($this->directories)) $this->directories = explode(',', $this->directories);
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| 487 | for ($i=0; $i<count($this->directories); $i++) {
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| 488 | $dh = opendir($this->directories[$i]);
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| 489 | while ($file = readdir($dh)) {
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| 490 | if ($file == '.' OR $file == '..') continue;
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| 491 |
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| 492 | if (is_dir($this->directories[$i].$file) == TRUE) {
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| 493 | if ($this->include_subdir == TRUE) {
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| 494 | $this->directories[] = $this->directories[$i].$file.'/';
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| 495 | continue;
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| 496 | } else {
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| 497 | continue;
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| 498 | }
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| 499 | }
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| 500 |
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| 501 | $newfile = $this->$ser_func($this->directories[$i].$file);
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| 502 | if (is_array($newfile) == TRUE) {
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| 503 | $this->writeout($this->directories[$i].$file, $newfile[1]);
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| 504 | $this->occurences += $newfile[0];
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| 505 | }
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| 506 | }
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| 507 | }
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| 508 | }
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| 509 |
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| 510 | // }}}
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| 511 | // {{{ doSearch()
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| 512 |
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| 513 | /**
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| 514 | * This starts the search/replace off. The behavior of this function will likely
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| 515 | * to be changed in future versions to work in read only mode. If you want to do
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| 516 | * actual replace with writing files - use doReplace method instead.
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| 517 | *
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| 518 | * @access public
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| 519 | */
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| 520 | function doSearch()
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| 521 | {
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| 522 | $this->doReplace();
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| 523 | }
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| 524 |
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| 525 | // }}}
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| 526 | // {{{ doReplace()
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| 527 |
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| 528 | /**
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| 529 | * This starts the search/replace off. Call this to do the replace.
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| 530 | * First do whatever files are specified, and/or if directories are specified,
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| 531 | * do those too.
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| 532 | *
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| 533 | * @access public
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| 534 | */
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| 535 | function doReplace()
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| 536 | {
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| 537 | $this->occurences = 0;
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| 538 | if ($this->find != '') {
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| 539 | if ((is_array($this->files) AND count($this->files) > 0) OR $this->files != '') $this->doFiles($this->search_function);
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| 540 | if ($this->directories != '') $this->doDirectories($this->search_function);
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| 541 | }
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| 542 | }
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| 543 |
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| 544 | // }}}
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| 545 |
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| 546 | }
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| 547 | ?>
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