Root/
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 | <?php /* -*- tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */ /* # ***** BEGIN LICENSE BLOCK ***** # This file is part of InDefero, an open source project management application. # Copyright (C) 2008-2011 Céondo Ltd and contributors. # # InDefero is free software; you can redistribute it and/or modify # it under the terms of the GNU General Public License as published by # the Free Software Foundation; either version 2 of the License, or # (at your option) any later version. # # InDefero is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the # GNU General Public License for more details. # # You should have received a copy of the GNU General Public License # along with this program; if not, write to the Free Software # Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA # # ***** END LICENSE BLOCK ***** */ require_once 'IDF/Scm/Exception.php' ; /** * Utility class to parse and compile basic_io stanzas * * @author Thomas Keller <me@thomaskeller.biz> */ class IDF_Scm_Monotone_BasicIO { /** * Parses monotone's basic_io format * * Known quirks: * - does not handle multi-values starting with a hash '[]' (no known output) * - does not validate hashes (should be /[0-9a-f]{40}/i) * - does not handle forbidden \0 * * @param string $in * @return array of arrays */ public static function parse( $in ) { $pos = 0; $stanzas = array (); $length = strlen ( $in ); while ( $pos < $length ) { $stanza = array (); while ( $pos < $length ) { if ( $in [ $pos ] == "\n" ) break ; $stanzaLine = array ( 'key' => '' , 'values' => array (), 'hash' => null); while ( $pos < $length ) { $ch = $in [ $pos ]; if ( $ch == '"' || $ch == '[' ) break ; ++ $pos ; if ( $ch == ' ' ) continue ; $stanzaLine [ 'key' ] .= $ch ; } // ensure we don't look at a symbol w/o a value list if ( $pos >= $length || $in [ $pos ] == "\n" ) { unset( $stanzaLine [ 'values' ]); unset( $stanzaLine [ 'hash' ]); } else { if ( $in [ $pos ] == '[' ) { unset( $stanzaLine [ 'values' ]); ++ $pos ; // opening square bracket while ( $pos < $length && $in [ $pos ] != ']' ) { $stanzaLine [ 'hash' ] .= $in [ $pos ]; ++ $pos ; } ++ $pos ; // closing square bracket } else { unset( $stanzaLine [ 'hash' ]); $valCount = 0; // if hashs and plain values are encountered in the same // value list, we add the hash values as simple values as well while ( $in [ $pos ] == '"' || $in [ $pos ] == '[' ) { $isHashValue = $in [ $pos ] == '[' ; ++ $pos ; // opening quote / bracket $stanzaLine [ 'values' ][ $valCount ] = '' ; while ( $pos < $length ) { $ch = $in [ $pos ]; $pr = $in [ $pos -1]; if (( $isHashValue && $ch == ']' ) ||(! $isHashValue && $ch == '"' && $pr != '\\' )) break ; ++ $pos ; $stanzaLine [ 'values' ][ $valCount ] .= $ch ; } ++ $pos ; // closing quote if (! $isHashValue ) { $stanzaLine [ 'values' ][ $valCount ] = str_replace ( array ( "\\\\" , "\\\"" ), array ( "\\" , "\"" ), $stanzaLine [ 'values' ][ $valCount ] ); } if ( $pos >= $length ) break ; if ( $in [ $pos ] == ' ' ) { ++ $pos ; // space ++ $valCount ; } } } } $stanza [] = $stanzaLine ; ++ $pos ; // newline } $stanzas [] = $stanza ; ++ $pos ; // newline } return $stanzas ; } /** * Compiles monotone's basicio format * * Known quirks: * - does not validate keys for /[a-z_]+/ * - does not validate hashes (should be /[0-9a-f]{40}/i) * - does not support intermixed value / hash formats * - does not handle forbidden \0 * * @param array $in Array of arrays * @return string */ public static function compile( $in ) { $out = "" ; $first = true; foreach (( array ) $in as $sx => $stanza ) { if ( $first ) $first = false; else $out .= "\n" ; $maxkeylength = 0; foreach (( array ) $stanza as $lx => $line ) { if (! array_key_exists ( 'key' , $line ) || empty ( $line [ 'key' ])) { throw new IDF_Scm_Exception( '"key" not found in basicio stanza ' . $sx . ', line ' . $lx ); } $maxkeylength = max( $maxkeylength , strlen ( $line [ 'key' ])); } foreach (( array ) $stanza as $lx => $line ) { $out .= str_pad ( $line [ 'key' ], $maxkeylength , ' ' , STR_PAD_LEFT); if ( array_key_exists ( 'hash' , $line )) { $out .= ' [' . $line [ 'hash' ]. ']' ; } else if ( array_key_exists ( 'values' , $line )) { if (! is_array ( $line [ 'values' ]) || count ( $line [ 'values' ]) == 0) { throw new IDF_Scm_Exception( '"values" must be an array of a size >= 1 ' . 'in basicio stanza ' . $sx . ', line ' . $lx ); } foreach ( $line [ 'values' ] as $value ) { $out .= ' "' . str_replace ( array ( "\\" , "\"" ), array ( "\\\\" , "\\\"" ), $value ). '"' ; } } $out .= "\n" ; } } return $out ; } } |