if(last($args) == '{') { # open block
array_pop($args); # drop '{'
- if(!is_string(last($tem['pieces']))) $tem['pieces'][] = '';
$tem =& tem_push($tem); # create a new sub-template
$tem['parent']['pieces'][] =& $tem; # as a piece of the parent
$tem['name'] = $name;
}
function fill_template($template, &$data, &$context = NULL) {
- if(!$context) {
- $context =& tem_push($context);
- $context['data'] =& $data;
- }
+ $context =& tem_push($context);
+ $context['data'] =& $data;
foreach($template['pieces'] as $tem) {
if(is_string($tem)) $output .= $tem;
elseif($tem['pieces']) { # sub-template
$rows =& tem_row_data($tem, $context);
+ $context['rows'] =& $rows;
foreach($rows as $key => &$row) {
- $context =& tem_push($context);
- $context['data'] =& $row;
- $context['rows'] =& $rows;
- $output .= fill_template($tem, $row, $context);
- $context =& $context['parent'];
-
+ $context['cur'] = $key;
+ $output .= fill_template($tem, $row, $context);
}
} else { # variable
$output .= tem_encoded_data($tem, $context);
}
}
+ $context =& $context['parent'];
return $output;
}
# innermost one) until a value is found.
function tem_data_scope($key, $context) {
+ static $refs = array();
+
$scope = $context;
do{
if(array_key_exists($key, $scope['data'])) {
} while($scope = $scope['parent']);
# not found; return empty scope.
- return array('parent' => $context);
+ $refs[] = array();
+ $ret = array();
+ $ret['parent'] =& $context;
+ $ret['data'] =& last($refs);
+ return $ret;
}
function tem_get_data($key, $context) {
# Return the value for a tag as a set of rows to fill a sub-template.
# If $tag has an arg, call the tem_auto function to munge the data.
-function &tem_row_data($tag, $context)
+function &tem_row_data($tem, $context)
{
- $key = $tag['name'];
- if(count($tag['args'])) {
- $func = "tem_auto_" . $tag['args'][0];
- function_exists($func)
- or die("ERROR: template auto function '$func' not found.<br>\n");
- }
+ $key = $tem['name'];
$scope = tem_data_scope($key, $context);
- if($func) $value = $func($key, $scope);
+ if(count($tem['args'])) {
+ $auto_func = "tem_auto_" . $tem['args'][0];
+ function_exists($auto_func)
+ or die("ERROR: template auto function '$auto_func' not found.<br>\n");
+ }
+ if($auto_func) $value = $auto_func($scope['data'][$key], $key, $scope);
else $value = $scope['data'][$key];
$rows = tem_data_as_rows($value);
# 'sep' (separator) sections will be shown for all but the last parent row.
# Sample usage:
-# <!--~rows~-->
-# <!--~row~-->
+# <!--~rows {~-->
+# <!--~row {~-->
# row content...
-# <!--~separator sep {~--><hr><!--~separator }"-->
-# <!--~row~-->
-# <!--~rows~-->
+# <!--~separator sep {~--><hr><!--~}"-->
+# <!--~}~-->
+# <!--~}~-->
#
-function tem_auto_sep($key, $context) {
- $rows =& $context['parent']['rows'];
- if(key($rows)) return true;
- # else we are on the last row (cursor has hit the end and reset).
+function tem_auto_sep(&$value, $key, $context) {
+ $rows =& $context['parent']['parent'];
+ if($rows['cur'] != count($rows['rows'])-1) # last row?
+ return $value = true; # show once
}
# 'show' sections will be shown unless the corresponding data value
# is false. We check only for false; 0 or '' will not work.
-function tem_auto_show($key, $context) {
- if($context['data'][$key] !== false)
- return tem_data_as_rows(true);
+function tem_auto_show(&$value) {
+ if($value !== false) $value = array(array());
+ return $value;
}
# 'evenodd' sections are given an 'evenodd' attribute whose value
# alternates between 'even' and 'odd'.
-function tem_auto_evenodd($key, $context) {
- $rows = $context['data'][$key];
- $even = 0;
- $text = array('even', 'odd');
- foreach($rows as $key => $value) {
- $rows[$key]['evenodd'] = $text[$even];
- $even = 1 - $even;
+function tem_auto_evenodd(&$values) {
+ $even = false;
+ foreach($values as &$value) {
+ $value['evenodd'] = $even ? 'even' : 'odd';
+ $even = !$even;
+ }
+ return $values;
+}
+
+
+
+
+
+# Backward Compatibility
+# ----------------------
+
+# Old-style templates don't show unless explicitly requested.
+function tem_auto_hide(&$value, $key, $context) {
+ unset($context['data'][$key]);
+ return false;
+}
+
+# The old API is being used with the named sub-template,
+# so hide it and insert a value slot for its expansion(s).
+function &tem_is_old_sub($name, &$template) {
+ foreach($template['pieces'] as $key => &$piece) {
+ if(is_array($piece) and $piece['pieces']) {
+ if($piece['name'] == $name) {
+ if($piece['args'][0] != 'hide') { # if we haven't already
+ $piece['args'] = array('hide');
+ $var = array('name' => $name, 'args' => array());
+ array_splice($template['pieces'], $key, 0, array($var));
+ }
+ return $piece;
+ }
+ $tem = tem_is_old_sub($name, $piece);
+ if($tem) return $tem;
+ }
+ }
+}
+
+class tem {
+ var $template;
+ var $data;
+
+ function tem() {
+ $this->template = array();
+ $this->data = array();
+ }
+
+ function set($key, $value) {
+ $this->data[$key] = $value;
+ }
+
+ function append($key, $value) {
+ $this->data[$key] .= $value;
+ }
+
+ function prepend($key, $value) {
+ $this->data[$key] = $value . $this->data[$key];
+ }
+
+ function clear($key) {
+ unset($this->data[$key]);
+ }
+
+ function get($key) {
+ return $this->data[$key];
+ }
+
+ function show($name) {
+ $tem = tem_is_old_sub($name, $this->template);
+ $this->data[$name] .= fill_template($tem, $this->data);
+ }
+
+ function show_separated($name) {
+ if($this->get($name)) {
+ $this->show($name . '_sep');
+ }
+ $this->show($name);
+ }
+
+ function load_str($str) {
+ $this->template = parse_template($str);
+ }
+
+ function load($filename) {
+ $this->template = parse_template_file($filename);
}
- return tem_data_as_rows($rows);
+
+ function run($tem = false) {
+ if($tem) {
+ if(strlen($tem < 150 && file_exists($tem))) $this->load($tem);
+ else $this->load_str($tem);
+ }
+
+ return fill_template($this->template, $this->data);
+ }
+
+ function output($tem = false) {
+ print($this->run($tem));
+ }
+
+ function top_sub_names() {
+ return array_keys(top_sub_templates($this->template));
+ }
+
+ function top_subs() {
+ $ret = array();
+ $names = $this->top_sub_names();
+ foreach($names as $name) {
+ $ret[$name] = $this->get($name);
+ }
+ return $ret;
+ }
+
+ # old name for show (deprecated)
+ function sub($name) {
+ $this->show($name);
+ }
+}
+
+function tem_init() {
+ if(!$GLOBALS['wfpl_template']) {
+ $GLOBALS['wfpl_template'] = new tem();
+ }
+}
+
+function tem_append($key, $value) {
+ tem_init();
+ $GLOBALS['wfpl_template']->append($key, $value);
+}
+
+function tem_prepend($key, $value) {
+ tem_init();
+ $GLOBALS['wfpl_template']->prepend($key, $value);
+}
+
+function tem_set($key, $value) {
+ tem_init();
+ $GLOBALS['wfpl_template']->set($key, $value);
+}
+
+function tem_get($key) {
+ tem_init();
+ return $GLOBALS['wfpl_template']->get($key);
+}
+
+function tem_run($tem = false) {
+ tem_init();
+ return $GLOBALS['wfpl_template']->run($tem);
+}
+
+function tem_show($name) {
+ tem_init();
+ return $GLOBALS['wfpl_template']->show($name);
+}
+
+function tem_show_separated($name) {
+ tem_init();
+ $GLOBALS['wfpl_template']->show_separated($name);
+}
+
+function tem_load($filename) {
+ tem_init();
+ $GLOBALS['wfpl_template']->load($filename);
+}
+
+function tem_output($filename = false) {
+ tem_init();
+ $GLOBALS['wfpl_template']->output($filename);
+}
+
+function tem_top_subs() {
+ tem_init();
+ return $GLOBALS['wfpl_template']->top_subs();
+}
+
+function tem_top_sub_names() {
+ tem_init();
+ return $GLOBALS['wfpl_template']->top_sub_names();
+}
+
+function tem_load_new($filename) {
+ $old = $GLOBALS['wfpl_template'];
+ $GLOBALS['wfpl_template'] = new tem();
+ $GLOBALS['wfpl_template']->load($filename);
+ return $old;
+}
+
+# deprecated (old name for show)
+function tem_sub($name) {
+ tem_show($name);
}
?>