| 一个易用的模板类 |
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来源：互联网 |
时间：2006-03-08 |
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($i, $h) = each($handle)) {
$str = $this->subst($h);
$this->set_var($target, $str);
}
}
return $str;
}
function pparse($target, $handle, $append = false) {
echo $this->parse($target, $handle, $append);
return false;
}
/* public: get_vars()*/
function get_vars() {
reset($this->varkeys);
while(list($k, $v) = each($this->varkeys)) {
$result[$k] = $this->varvals[$k];
}
return $result;
}
/* public: get_var(string varname)
* varname: name of variable.
*
* public: get_var(array varname)
* varname: array of variable names
*/
function get_var($varname) {
if (!is_array($varname)) {
return $this->varvals[$varname];
} else {
reset($varname);
while(list($k, $v) = each($varname)) {
$result[$k] = $this->varvals[$k];
}
return $result;
}
}
/* public: get_undefined($handle)
* handle: handle of a template.
*/
function get_undefined($handle) {
if (!$this->loadfile($handle)) {
$this->halt("get_undefined: unable to load $handle.");
return false;
}
preg_match_all("/{([^}] )}/", $this->get_var($handle), $m);
$m = $m[1];
if (!is_array($m))
return false;
reset($m);
while(list($k, $v) = each($m)) {
if (!isset($this->varkeys[$v]))
$result[$v] = $v;
}
if (count($result))
return $result;
else
return false;
}
/* public: finish(string $str)
* str: string to finish.
*/
function finish($str) {
switch ($this->unknowns) {
case "keep":
break;
case "remove":
$str = preg_replace('/{[^ trn}] }/', "", $str);
break;
case "comment":
$str = preg_replace('/{([^ trn}] )}/', "<!-- Template $handle: Variable color=#0000cc>set_var($target, $this->get_var($target) . $str);
} else {
$this->set_var($target, $str);
}
} else {
reset($handle);
while(list($i, $h) = each($handle)) {
$str = $this->subst($h);
$this->set_var($target, $str);
}
}
return $str;
}
function pparse($target, $handle, $append = false) {
echo $this->parse($target, $handle, $append);
return false;
}
/* public: get_vars()*/
function get_vars() {
reset($this->varkeys);
while(list($k, $v) = each($this->varkeys)) {
$result[$k] = $this->varvals[$k];
}
return $result;
}
/* public: get_var(string varname)
* varname: name of variable.
*
* public: get_var(array varname)
* varname: array of variable names
*/
function get_var($varname) {
if (!is_array($varname)) {
return $this->varvals[$varname];
} else {
reset($varname);
while(list($k, $v) = each($varname)) {
$result[$k] = $this->varvals[$k];
}
return $result;
}
}
/* public: get_undefined($handle)
* handle: handle of a template.
*/
function get_undefined($handle) {
if (!$this->loadfile($handle)) {
$this->halt("get_undefined: unable to load $handle.");
return false;
}
preg_match_all("/{([^}] )}/", $this->get_var($handle), $m);
$m = $m[1];
if (!is_array($m))
return false;
reset($m);
while(list($k, $v) = each($m)) {
if (!isset($this->varkeys[$v]))
$result[$v] = $v;
}
if (count($result))
return $result;
else
return false;
}
/* public: finish(string $str)
* str: string to finish.
*/
function finish($str) {
switch ($this->unknowns) {
case "keep":
break;
case "remove":
$str = preg_replace('/{[^ trn}] }/', "", $str);
break;
case "comment":
$str = preg_replace('/{([^ trn}] )}/', "<!-- Template $handle: Variable 1 undefined -->", $str);
break;
}
return $str;
}
/* public: p(string $varname)
* varname: name of variable to print.
*/
function p($varname) {
echo $this->finish($this->get_var($varname));
}
function get($varname) {
return $this->finish($this->get_var($varname));
}
/***************************************************************************/
/* private: filename($filename)
* filename: name to be completed.
*/
function filename($filename) {
if (substr($filename, 0, 1) != "/") {
$filename = $this->root."/".$filename;
}
if (!file_exists($filename))
$this->halt("filename: file $filename does not exist.");
return $filename;
}
/* private: varname($varname)
* varname: name of a replacement variable to be protected.
*/
function varname($varname) {
return preg_quote("{".$varname."}");
}
/* private: loadfile(string $handle)
* handle: load file defined by handle, if it is not loaded yet.
*/
function loadfile($handle) {
if (isset($this->varkeys[$handle]) and !empty($this->varvals[$handle]))
return true;
if (!isset($this->file[$handle])) {
$this->halt("loadfile: $handle is not a valid handle.");
return false;
}
$filename = $this->file[$handle];
$str = implode("", @file($filename));
if (empty($str)) {
$this->halt("loadfile: While loading $handle, $filename does not exist or is empty.");
return false;
}
$this->set_var($handle, $str);
return true;
}
/***************************************************************************/
/* public: halt(string $msg)
* msg: error message to show.
*/
function halt($msg) {
$this->last_error = $msg;
if ($this->halt_on_error != "no")
$this->haltmsg($msg);
if ($this->halt_on_error == "yes")
die("<b>Halted.</b>");
return false;
}
/* public, override: haltmsg($msg)
* msg: error message to show.
*/
function haltmsg($msg) {
printf("<b>Template Error:</b> %s<br>n", $msg);
}
}#end Template_base class
//类名:Template
//功能:模板处理扩展
//说明:继承于Tempalte_base,修改了部分的模板处理函数
class Template extends Template_base {
var $handelkey = array();
var $handelcount;
function Template($filename) {
$this->Template_base();
if(empty($filename) || !file_exists($filename)) {
die("Template -> Template() : Error - file $filename does not exist");
}
$this->set_file('ihtml',$filename);
$this->handelcount = 1;
return true;
}
function Output() {
$this->p('out');
return true;
}
function Compile() {
$this->parse('out','ihtml');
return true;
}
function OP() {
$copyright = '<p align=center>© 2002 new Maya workroom</p>';
$this->SetVar('copyright',$copyright);
$this->Compile();
$this->OutPut();
return true;
}
//example: var or array
// $key = array(
// 'row1' => '序号',
// 'row2' => '姓名',
// 'row3' => '性别'
// )
function SetVar($key,$value = '') {
$this->set_var($key,$value);
return true;
}
// $key is define the current block
function SetBlock($blockname) {
$this->handelkey[$blockname] = $this->handelcount;
$this->set_block('ihtml',$blockname,$this->handelcount);
$this->handelcount ;
return true;
}
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