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class easyTemplate { /* * Public variable: last error message */
var $error = "";
/* * Private variables */
/* * The tag values pairs, as defined by assign() */
var $tags = array();
/* * The trigger value pairs, as defined by trigger() */
var $triggers = array();
/* * The template file */
var $template_file = "";
/** * * Constructor - assigns template_file to the class. * * @param string $template_file Name (including path) of the file * that contains the template. * * @return nothing */
function easyTemplate($template_file) { /* * Basic check whether the template file exists or not. */
if(!file_exists($template_file)) { $this->error = "The template file $template_file does not exist."; }
/* * Assigns template file */
$this->template_file = $template_file; }
/** * * Assigns a value for a template tag. * * @param string $tag Tag that has to be substituted (assigned) * @param string $value Value hat has to be assigned to the tag * * @return int $errcode Error code (see global errors) */
function assign($tag, $value) { /* * bails out in case that tag is empty */
if (empty($tag)) { $this->error = "Tag name is empty"; return(false); exit; }
/* * Assigns value to tag */
$this->tags[$tag] = $value; return(true); }
/** * * Assigns a value for a trigger tag. * * @param string $tag Tag that has to be triggered * @param string $value 1 - enable, 0 - disable * * @return int $errcode Error code (see global errors) / function trigger($tag, $value) { / * bails out in case that tag is empty */
if (empty($tag)) { $this->error = "Tag name is empty"; return(false); exit; }
/* * Assigns value to tag */
$this->triggers[$tag] = $value; return(true); }
/** * * Returns the parsed template as string. * * @param string $contents Contents that are returned * * @return int $errcode Error code (see global errors) */
function easy_parse(&$contents) { /* * Reads in template file, suppresses error messages */
$contents = @implode("", (@file($this->template_file)));
/* * Loops through all assigned tag-value pairs */
while(list($key, $value) = each($this->tags)) { /* * Constructs the template tag name */
$tag = '{'.$key.'}';
/* * checks if tag is in template */
if(!strstr($contents, $tag)) { $this->error = "Tag $tag not found in template ". $this->template_file.".";
return(false); }
/* * Replace the template tag with the respective value */
$contents = str_replace($tag, $value, $contents); }
/* * Loops through all assigned triggers */
while(list($key, $value) = each($this->triggers)) { /* * Constructs the template tag name */
$tag = '{TRIGGER_OPEN_'.$key.'}';
/* * checks if tag is in template */
if(!strstr($contents, $tag)) { $this->error = "Tag $tag not found in template ". $this->template_file.".";
return(false); }
/* * Replace the trigger with the respective value */
if($value) { /* trigger is set, don't comment out / $contents = str_replace($tag, "", $contents); } else { / trigger is not set, comment it out */ $contents = str_replace($tag, "<!--", $contents); }
/* * Constructs the template tag name */
$tag = '{TRIGGER_CLOSE_'.$key.'}';
/* * checks if tag is in template */
if(!strstr($contents, $tag)) { $this->error = "Tag $tag not found in template ". $this->template_file.".";
return(false); }
/* * Replace the trigger with the respective value */
if($value) { /* trigger is set, don't comment out / $contents = str_replace($tag, "", $contents); } else { / trigger is not set, comment it out */ $contents = str_replace($tag, "-->", $contents); } }
return(true); }
/** * * Parses and prints the current template. * * @return int $errcode Error code */
function easy_print() { /* * Parses the template */
$ret = $this->easy_parse($contents);
if($ret != true) { return($ret); } else {
/* * Outputs the parsed template */
print($contents); return(true); } }
/** * * Parses and returns the current template. * * @return string $contents */
function easy_return() { $ret = $this->easy_parse($contents);
if($ret != true) { return($ret); } else { return($contents); } } }
?>