📄 it.php
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$this->touchedBlocks[$block] = true; return true; } // end func touchBlock /** * Clears all datafields of the object and rebuild the internal blocklist * * LoadTemplatefile() and setTemplate() automatically call this function * when a new template is given. Don't use this function * unless you know what you're doing. * * @access public * @see free() */ function init() { $this->free(); $this->findBlocks($this->template); // we don't need it any more $this->template = ''; $this->buildBlockvariablelist(); } // end func init /** * Clears all datafields of the object. * * Don't use this function unless you know what you're doing. * * @access public * @see init() */ function free() { $this->err = array(); $this->currentBlock = "__global__"; $this->variableCache = array(); $this->blocklookup = array(); $this->touchedBlocks = array(); $this->flagBlocktrouble = false; $this->flagGlobalParsed = false; } // end func free /** * Sets the template. * * You can eighter load a template file from disk with * LoadTemplatefile() or set the template manually using this function. * * @param string template content * @param boolean remove unknown/unused variables? * @param boolean remove empty blocks? * @see LoadTemplatefile(), $template * @access public */ function setTemplate( $template, $removeUnknownVariables = true, $removeEmptyBlocks = true ) { $this->removeUnknownVariables = $removeUnknownVariables; $this->removeEmptyBlocks = $removeEmptyBlocks; if ("" == $template && $this->flagCacheTemplatefile) { $this->variableCache = array(); $this->blockdata = array(); $this->touchedBlocks = array(); $this->currentBlock = "__global__"; } else { $this->template = '<!-- BEGIN __global__ -->' . $template . '<!-- END __global__ -->'; $this->init(); } if ($this->flagBlocktrouble) return false; return true; } // end func setTemplate /** * Reads a template file from the disk. * * @param string name of the template file * @param bool how to handle unknown variables. * @param bool how to handle empty blocks. * @access public * @return boolean false on failure, otherwise true * @see $template, setTemplate(), $removeUnknownVariables, * $removeEmptyBlocks */ function loadTemplatefile( $filename, $removeUnknownVariables = true, $removeEmptyBlocks = true ) { $template = ""; if (!$this->flagCacheTemplatefile || $this->lastTemplatefile != $filename ){ $template = $this->getfile($filename); } $this->lastTemplatefile = $filename; return $template!=""? $this->setTemplate( $template,$removeUnknownVariables, $removeEmptyBlocks ):false; } // end func LoadTemplatefile /** * Sets the file root. The file root gets prefixed to all filenames passed * to the object. * * Make sure that you override this function when using the class * on windows. * * @param string * @see IntegratedTemplate() * @access public */ function setRoot($root) { if ("" != $root && "/" != substr($root, -1)) $root .= "/"; $this->fileRoot = $root; } // end func setRoot /** * Build a list of all variables within of a block */ function buildBlockvariablelist() { foreach ($this->blocklist as $name => $content) { preg_match_all( $this->variablesRegExp, $content, $regs ); if (0 != count($regs[1])) { foreach ($regs[1] as $k => $var) $this->blockvariables[$name][$var] = true; } else { $this->blockvariables[$name] = array(); } } } // end func buildBlockvariablelist /** * Returns a list of all global variables */ function getGlobalvariables() { $regs = array(); $values = array(); foreach ($this->blockvariables["__global__"] as $allowedvar => $v) { if (isset($this->variableCache[$allowedvar])) { $regs[] = "@" . $this->openingDelimiter . $allowedvar . $this->closingDelimiter."@"; $values[] = $this->variableCache[$allowedvar]; unset($this->variableCache[$allowedvar]); } } return array($regs, $values); } // end func getGlobalvariables /** * Recusively builds a list of all blocks within the template. * * @param string string that gets scanned * @see $blocklist */ function findBlocks($string) { $blocklist = array(); if ( preg_match_all($this->blockRegExp, $string, $regs, PREG_SET_ORDER) ) { foreach ($regs as $k => $match) { $blockname = $match[1]; $blockcontent = $match[2]; if (isset($this->blocklist[$blockname])) { $this->err[] = PEAR::raiseError( $this->errorMessage( IT_BLOCK_DUPLICATE ) . '"' . $blockname . "'", IT_BLOCK_DUPLICATE ); $this->flagBlocktrouble = true; } $this->blocklist[$blockname] = $blockcontent; $this->blockdata[$blockname] = ""; $blocklist[] = $blockname; $inner = $this->findBlocks($blockcontent); foreach ($inner as $k => $name) { $pattern = sprintf( '@<!--\s+BEGIN\s+%s\s+-->(.*)<!--\s+END\s+%s\s+-->@sm', $name, $name ); $this->blocklist[$blockname] = preg_replace( $pattern, $this->openingDelimiter . "__" . $name . "__" . $this->closingDelimiter, $this->blocklist[$blockname] ); $this->blockinner[$blockname][] = $name; $this->blockparents[$name] = $blockname; } } } return $blocklist; } // end func findBlocks /** * Reads a file from disk and returns its content. * @param string Filename * @return string Filecontent */ function getFile($filename) { if ("/" == $filename{0} && "/" == substr($this->fileRoot, -1)) $filename = substr($filename, 1); $filename = $this->fileRoot . $filename; if (!($fh = @fopen($filename, "r"))) { $this->err[] = PEAR::raiseError( $this->errorMessage(IT_TPL_NOT_FOUND) . ': "' .$filename .'"', IT_TPL_NOT_FOUND ); return ""; } $content = fread($fh, filesize($filename)); fclose($fh); return preg_replace( "#<!-- INCLUDE (.*) -->#ime", "\$this->getFile('\\1')", $content ); } // end func getFile /** * Adds delimiters to a string, so it can be used as a pattern * in preg_* functions * * @param string * @return string */ function _addPregDelimiters($str) { return '@' . $str . '@'; } /** * Replaces an opening delimiter by a special string * * @param string * @return string */ function _preserveOpeningDelimiter($str) { return (false === strpos($str, $this->openingDelimiter))? $str: str_replace( $this->openingDelimiter, $this->openingDelimiter . '%preserved%' . $this->closingDelimiter, $str ); } /** * Return a textual error message for a IT error code * * @param integer $value error code * * @return string error message, or false if the error code was * not recognized */ function errorMessage($value) { static $errorMessages; if (!isset($errorMessages)) { $errorMessages = array( IT_OK => '', IT_ERROR => 'unknown error', IT_TPL_NOT_FOUND => 'Cannot read the template file', IT_BLOCK_NOT_FOUND => 'Cannot find this block', IT_BLOCK_DUPLICATE => 'The name of a block must be'. ' uniquewithin a template.'. ' Found "$blockname" twice.'. 'Unpredictable results '. 'may appear.', IT_UNKNOWN_OPTION => 'Unknown option' ); } if (PEAR::isError($value)) { $value = $value->getCode(); } return isset($errorMessages[$value]) ? $errorMessages[$value] : $errorMessages[IT_ERROR]; }} // end class IntegratedTemplate?>
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