) // // All rigths reserved . Please see licence file. // //////////////////////////////////////////////////////////// /* CVS Revision. 1.1.0 */ class FastTemplate { var $FILELIST = array(); // Holds the array of filehandles // FILELIST[HANDLE] == "fileName" var $DYNAMIC = array(); // Holds the array of dynamic // blocks, and the fileHandles they // live in. var $PARSEVARS = array(); // Holds the array of Variable // handles. // PARSEVARS[HANDLE] == "value" var $LOADED = array(); // We only want to load a template // once - when it's used. // LOADED[FILEHANDLE] == 1 if loaded // undefined if not loaded yet. var $HANDLE = array(); // Holds the handle names assigned // by a call to parse() var $ROOT = ""; // Holds path-to-templates var $WIN32 = false; // Set to true if this is a WIN32 server var $ERROR = ""; // Holds the last error message var $LAST = ""; // Holds the HANDLE to the last // template parsed by parse() var $STRICT = true; // Strict template checking. // Unresolved vars in templates will // generate a warning when found. // ************************************************************ function FastTemplate ($pathToTemplates = "") { global $php_errormsg; if(!empty($pathToTemplates)) { $this->set_root($pathToTemplates); } } // end (new) FastTemplate () // ************************************************************ // All templates will be loaded from this "root" directory // Can be changed in mid-process by re-calling with a new // value. function set_root ($root) { $trailer = substr($root,-1); if(!$this->WIN32) { if( (ord($trailer)) != 47 ) { $root = "$root". chr(47); } if(is_dir($root)) { $this->ROOT = $root; } else { $this->ROOT = ""; $this->error("Specified ROOT dir [$root] is not a directory"); } } else { // WIN32 box - no testing if( (ord($trailer)) != 92 ) { $root = "$root" . chr(92); } $this->ROOT = $root; } } // End set_root() // ************************************************************** // Calculates current microtime // I throw this into all my classes for benchmarking purposes // It's not used by anything in this class and can be removed // if you don't need it. function utime () { $time = explode( " ", microtime()); $usec = (double)$time[0]; $sec = (double)$time[1]; return $sec + $usec; } // ************************************************************** // Strict template checking, if true sends warnings to STDOUT when // parsing a template with undefined variable references // Used for tracking down bugs-n-such. Use no_strict() to disable. function strict () { $this->STRICT = true; } // ************************************************************ // Silently discards (removes) undefined variable references // found in templates function no_strict () { $this->STRICT = false; } // ************************************************************ // A quick check of the template file before reading it. // This is -not- a reliable check, mostly due to inconsistencies // in the way PHP determines if a file is readable. function is_safe ($filename) { if(!file_exists($filename)) { $this->error("[$filename] does not exist",0); return false; } return true; } // ************************************************************ // Grabs a template from the root dir and // reads it into a (potentially REALLY) big string function get_template ($template) { if(empty($this->ROOT)) { $this->error("Cannot open template. Root not valid.",1); return false; } $filename = "$this->ROOT"."$template"; $contents = implode("",(@file($filename))); if( (!$contents) or (empty($contents)) ) { $this->error("get_template() failure: [$filename] $php_errormsg",1); } return $contents; } // end get_template // ************************************************************ // Prints the warnings for unresolved variable references // in template files. Used if STRICT is true function show_unknowns ($Line) { $unknown = array(); if (ereg("({[A-Z0-9_]+})",$Line,$unknown)) { $UnkVar = $unknown[1]; if(!(empty($UnkVar))) { @error_log("[FastTemplate] Warning: no value found for variable: $UnkVar ",0); } } } // end show_unknowns() // ************************************************************ // This routine get's called by parse() and does the actual // {VAR} to VALUE conversion within the template. function parse_template ($template, $tpl_array) { while ( list ($key,$val) = each ($tpl_array) ) { if (!(empty($key))) { if(gettype($val) != "string") { settype($val,"string"); } //$template = ereg_replace("{$key}","$val","$template"); //$template = str_replace("{$key}","$val","$template"); // php4 doesn't like '{$' combinations. $key = '{'."$key".'}'; //print $key; //$template = ereg_replace("$key","$val","$template"); $template = str_replace("$key","$val","$template"); } } if(!$this->STRICT) { // Silently remove anything not already found //$template = ereg_replace("{([A-Z0-9_]+)}","",$template); $template = str_replace("{([A-Z0-9_]+)}","",$template); } else { // Warn about unresolved template variables if (ereg("({[A-Z0-9_]+})",$template)) { $unknown = split("\n",$template); while (list ($Element,$Line) = each($unknown) ) { $UnkVar = $Line; if(!(empty($UnkVar))) { $this->show_unknowns($UnkVar); } } } } return $template; } // end parse_template(); // ************************************************************ // The meat of the whole class. The magic happens here. function parse ( $ReturnVar, $FileTags ) { global $vars; $append = false; $this->LAST = $ReturnVar; $this->HANDLE[$ReturnVar] = 1; if (gettype($FileTags) == "array") { unset($this->$ReturnVar); // Clear any previous data while ( list ( $key , $val ) = each ( $FileTags ) ) { if ( (!isset($this->$val)) || (empty($this->$val)) ) { $this->LOADED["$val"] = 1; if(isset($this->DYNAMIC["$val"])) { $this->parse_dynamic($val,$ReturnVar); } else { $fileName = $this->FILELIST["$val"]; $this->$val = $this->get_template($fileName); } } // Array context implies overwrite $this->$ReturnVar = $this->parse_template($this->$val,$this->PARSEVARS); // For recursive calls. $this->assign( array( $ReturnVar => $this->$ReturnVar ) ); } } // end if FileTags is array() else { // FileTags is not an array $val = $FileTags; if( (substr($val,0,1)) == '.' ) { // Append this template to a previous ReturnVar $append = true; $val = substr($val,1); } if ( (!isset($this->$val)) || (empty($this->$val)) ) { $this->LOADED["$val"] = 1; if(isset($this->DYNAMIC["$val"])) { $this->parse_dynamic($val,$ReturnVar); } else { $fileName = $this->FILELIST["$val"]; $this->$val = $this->get_template($fileName); } } if($append) { //$vars['parse']['templates'][].= $this->$val; $this->$ReturnVar .= $this->parse_template($this->$val,$this->PARSEVARS); } else { $this->$ReturnVar = $this->parse_template($this->$val,$this->PARSEVARS); } // For recursive calls. //$vars['parse']['returns'][$ReturnVar][].=htmlspecialchars($this->$ReturnVar); $this->assign(array( $ReturnVar => $this->$ReturnVar) ); } return; } // End parse() // ************************************************************ function FastPrint ( $template = "" ) { if(empty($template)) { $template = $this->LAST; } if( (!(isset($this->$template))) || (empty($this->$template)) ) { $this->error("Nothing parsed, nothing printed",0); return; } else { print $this->$template; } return; } // ************************************************************ function fetch ( $template = "" ) { if(empty($template)) { $template = $this->LAST; } if( (!(isset($this->$template))) || (empty($this->$template)) ) { $this->error("Nothing parsed, nothing printed",0); return ""; } return($this->$template); } // ************************************************************ function define_dynamic ($Macro, $ParentName) { // A dynamic block lives inside another template file. // It will be stripped from the template when parsed // and replaced with the {$Tag}. $this->DYNAMIC["$Macro"] = $ParentName; return true; } function strip_dynamic($defined_macro) { $ParentTag = $this->DYNAMIC["$defined_macro"]; if( (!$this->$ParentTag) or (empty($this->$ParentTag)) ) { $fileName = $this->FILELIST[$ParentTag]; $this->$ParentTag = $this->get_template($fileName); $this->LOADED[$ParentTag] = 1; } if($this->$ParentTag) { $template = $this->$ParentTag; $begin=""; $end=""; $find='(.\s\n*)'; $reg_exp="{$begin}{$find}{$end}"; $template=@preg_replace($reg_exp,'',$template); } unset($this->DYNAMIC[$defined_macro]); $this->$ParentTag=$template; return true; } // ************************************************************ function parse_dynamic ($Macro,$MacroName) { // The file must already be in memory. //global $vars; //$vars['parse_dynamic']['what'][].=$macro; //$vars['parse_dynamic']['tag_template'][].=$this->DYNAMIC["$Macro"]; $ParentTag = $this->DYNAMIC["$Macro"]; if( (!$this->$ParentTag) or (empty($this->$ParentTag)) ) { $fileName = $this->FILELIST[$ParentTag]; $this->$ParentTag = $this->get_template($fileName); $this->LOADED[$ParentTag] = 1; } if($this->$ParentTag) { $template = $this->$ParentTag; $vars['parse_dynamic']['template'][].=htmlspecialchars($template); $DataArray = split("\n",$template); $newMacro = ""; $newParent = ""; $outside = true; $start = false; $end = false; while ( list ($lineNum,$lineData) = each ($DataArray) ) { $lineTest = trim($lineData); if("" == "$lineTest" ) { $start = true; $end = false; $outside = false; } if("" == "$lineTest" ) { $start = false; $end = true; $outside = true; } if( (!$outside) and (!$start) and (!$end) ) { $newMacro .= "$lineData\n"; // Restore linebreaks } if( ($outside) and (!$start) and (!$end) ) { $newParent .= "$lineData\n"; // Restore linebreaks } if($end) { //$newParent .= "{$MacroName}\n"; $newParent .= '{'."$MacroName}\n"; } // Next line please if($end) { $end = false; } if($start) { $start = false; } } // end While //$vars['parse_dynamic']['NewMacros'][$Macro].=htmlspecialchars($newMacro); //$vars['parse_dynamic']['NewParents'][$ParentTag].=htmlspecialchars($newParent); $this->$Macro = $newMacro; $this->$ParentTag = $newParent; return true; } // $ParentTag NOT loaded - MAJOR oopsie else { @error_log("ParentTag: [$ParentTag] not loaded!",0); $this->error("ParentTag: [$ParentTag] not loaded!",0); } return false; } // ************************************************************ // Strips a DYNAMIC BLOCK from a template. function clear_dynamic ($Macro="") { if(empty($Macro)) { return false; } // The file must already be in memory. $ParentTag = $this->DYNAMIC["$Macro"]; if( (!$this->$ParentTag) or (empty($this->$ParentTag)) ) { $fileName = $this->FILELIST[$ParentTag]; $this->$ParentTag = $this->get_template($fileName); $this->LOADED[$ParentTag] = 1; } if($this->$ParentTag) { $template = $this->$ParentTag; $DataArray = split("\n",$template); $newParent = ""; $outside = true; $start = false; $end = false; while ( list ($lineNum,$lineData) = each ($DataArray) ) { $lineTest = trim($lineData); if("" == "$lineTest" ) { $start = true; $end = false; $outside = false; } if("" == "$lineTest" ) { $start = false; $end = true; $outside = true; } if( ($outside) and (!$start) and (!$end) ) { $newParent .= "$lineData\n"; // Restore linebreaks } // Next line please if($end) { $end = false; } if($start) { $start = false; } } // end While $this->$ParentTag = $newParent; return true; } // $ParentTag NOT loaded - MAJOR oopsie else { @error_log("ParentTag: [$ParentTag] not loaded!",0); $this->error("ParentTag: [$ParentTag] not loaded!",0); } return false; } // ************************************************************ function define ($fileList) { while ( list ($FileTag,$FileName) = each ($fileList) ) { $this->FILELIST["$FileTag"] = $FileName; } return true; } // ************************************************************ function clear_parse ( $ReturnVar = "") { $this->clear($ReturnVar); } // ************************************************************ function clear ( $ReturnVar = "" ) { // Clears out hash created by call to parse() if(!empty($ReturnVar)) { if( (gettype($ReturnVar)) != "array") { unset($this->$ReturnVar); return; } else { while ( list ($key,$val) = each ($ReturnVar) ) { unset($this->$val); } return; } } // Empty - clear all of them while ( list ( $key,$val) = each ($this->HANDLE) ) { $KEY = $key; unset($this->$KEY); } return; } // end clear() // ************************************************************ function clear_all () { $this->clear(); $this->clear_assign(); $this->clear_define(); $this->clear_tpl(); return; } // end clear_all // ************************************************************ function clear_tpl ($fileHandle = "") { if(empty($this->LOADED)) { // Nothing loaded, nothing to clear return true; } if(empty($fileHandle)) { // Clear ALL fileHandles while ( list ($key, $val) = each ($this->LOADED) ) { unset($this->$key); } unset($this->LOADED); return true; } else { if( (gettype($fileHandle)) != "array") { if( (isset($this->$fileHandle)) || (!empty($this->$fileHandle)) ) { unset($this->LOADED[$fileHandle]); unset($this->$fileHandle); return true; } } else { while ( list ($Key, $Val) = each ($fileHandle) ) { unset($this->LOADED[$Key]); unset($this->$Key); } return true; } } return false; } // end clear_tpl // ************************************************************ function clear_define ( $FileTag = "" ) { if(empty($FileTag)) { unset($this->FILELIST); return; } if( (gettype($Files)) != "array") { unset($this->FILELIST[$FileTag]); return; } else { while ( list ( $Tag, $Val) = each ($FileTag) ) { unset($this->FILELIST[$Tag]); } return; } } // ************************************************************ // Aliased function - used for compatibility with CGI::FastTemplate /*function clear_parse () { $this->clear_assign(); }*/ // ************************************************************ // Clears all variables set by assign() function clear_assign () { if(!(empty($this->PARSEVARS))) { while(list($Ref,$Val) = each ($this->PARSEVARS) ) { unset($this->PARSEVARS["$Ref"]); } } } // ************************************************************ function clear_href ($href) { if(!empty($href)) { if( (gettype($href)) != "array") { unset($this->PARSEVARS[$href]); return; } else { while (list ($Ref,$val) = each ($href) ) { unset($this->PARSEVARS[$Ref]); } return; } } else { // Empty - clear them all $this->clear_assign(); } return; } function empty_tag($href_tag) { if(!$href_tag) return false; if(gettype($href_tag)=='array') { while (list ($Ref,$val) = each ($href_tag) ) { $this->PARSEVARS[$Ref]=''; } } else { $this->PARSEVARS[$href_tag]=''; } return true; } // ************************************************************ function assign ($tpl_array, $trailer="") { if(gettype($tpl_array) == "array") { while ( list ($key,$val) = each ($tpl_array) ) { if (!(empty($key))) { // Empty values are allowed // Empty Keys are NOT $this->PARSEVARS["$key"] = ereg_replace('&#', '&#', $val); } } } else { // Empty values are allowed in non-array context now. if (!empty($tpl_array)) { $this->PARSEVARS["$tpl_array"] = ereg_replace('&#', '&#', $trailer); } } } // ************************************************************ // Return the value of an assigned variable. // Christian Brandel cbrandel@gmx.de function get_assigned($tpl_name = "") { if(empty($tpl_name)) { return false; } if(isset($this->PARSEVARS["$tpl_name"])) { return ($this->PARSEVARS["$tpl_name"]); } else { return false; } } // ************************************************************ function error ($errorMsg, $die = 0) { $this->ERROR = $errorMsg; //echo "ERROR: $this->ERROR
\n"; trigger_error($this->ERROR,E_USER_ERROR); if ($die == 1) { exit; } return; } // end error() // ************************************************************ // ************************************************************ } // End class.FastTemplate.php3 ?> Roger Raval: Talk-Show
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