X-Git-Url: https://jasonwoof.com/gitweb/?p=wfpl.git;a=blobdiff_plain;f=template.php;h=06d02f551279e8cf142de9a2e81f7754b568ca8e;hp=45857afcecde5532be9c7651ac7a7bbb552bf29a;hb=15459c86d0996ab3037b1738a8be6efd378c1258;hpb=ece89d7b32c6eb58bf3704ea360b9b292c551c7f
diff --git a/template.php b/template.php
index 45857af..06d02f5 100644
--- a/template.php
+++ b/template.php
@@ -37,9 +37,9 @@
# tem_auto_* function to munge the data, automating certain common use
# cases. See the comments on the tem_auto functions for more details.
-require_once('code/wfpl/encode.php');
-require_once('code/wfpl/file.php');
-require_once('code/wfpl/misc.php');
+require_once(__DIR__.'/'.'encode.php');
+require_once(__DIR__.'/'.'file.php');
+require_once(__DIR__.'/'.'misc.php');
# Top-Level Functions
@@ -53,7 +53,7 @@ function template_file($filename, $data) {
return fill_template(parse_template_file($filename), $data);
}
-function parse_template_file($filename) {
+function &parse_template_file($filename) {
return parse_template(file_get_contents($filename));
}
@@ -61,7 +61,7 @@ function parse_template_file($filename) {
# A template is a hash with a name string, a pieces array, and possibly
# an args array.
-function parse_template($string) {
+function &parse_template($string) {
$tem =& tem_push();
$tem['pieces'] = array();
$matches = preg_split('/()/', preg_replace('//', '$1', $string), -1, PREG_SPLIT_DELIM_CAPTURE | PREG_SPLIT_NO_EMPTY);
@@ -157,13 +157,15 @@ function &tem_push(&$stack = NULL) {
# The middle form will be converted to the last form as we use it.
-function tem_data_as_rows($value) {
+function tem_data_as_rows($value, $key) {
if(is_array($value)) {
- # numeric keys, is already array of arrays -- expand sub-template for each.
- if(array_key_exists(0, $value)) return $value;
+ # numeric keys
+ if(array_key_exists(0, $value)) {
+ if(is_array($value[0])) return $value; # already array of hashes.
+ else return columnize($value, $key);
# key/value pairs -- expand sub-template once.
- else return array($value);
- } elseif($value) {
+ } else return array($value);
+ } elseif($value || $value === 0 || $value === '0' || $value === '') {
# value -- expand sub-template once using only parent values
return array(array());
} else {
@@ -207,13 +209,17 @@ function &tem_row_data($tem, $context)
if(count($tem['args'])) {
$auto_func = "tem_auto_" . $tem['args'][0];
- function_exists($auto_func)
- or die("ERROR: template auto function '$auto_func' not found.
\n");
+ if (!function_exists($auto_func)) {
+ die("ERROR: template auto function '$auto_func' not found.
\n");
+ }
+ # NAMESPACIFY $auto_func
+ }
+ if ($auto_func) {
+ $value = $auto_func($scope['data'][$key], $key, $scope, $tem['args']);
}
- if($auto_func) $value = $auto_func($scope['data'][$key], $key, $scope);
else $value = $scope['data'][$key];
- $rows = tem_data_as_rows($value);
+ $rows = tem_data_as_rows($value, $key);
if(is_array($value)) $scope['data'][$key] = $rows;
return $rows;
@@ -226,17 +232,25 @@ function tem_encoded_data($tag, $context)
$value = tem_get_data($key, $context);
foreach($tag['args'] as $encoding) {
$func = "enc_$encoding";
- if(function_exists($func)) $value = $func($value, $key);
- else die("ERROR: encoder function '$func' not found.
\n");
+ if (function_exists($func)) {
+ # NAMESPACIFY $func
+ $value = $func($value, $key);
+ } else {
+ die("ERROR: encoder function '$func' not found.
\n");
+ }
}
return $value;
}
-function is_sub_template($piece) {
+function is_sub_template(&$piece) {
return is_array($piece) and $piece['pieces'];
}
+function is_value_slot(&$piece) {
+ return is_array($piece) and !$piece['pieces'];
+}
+
# Return a hash containing the top-level sub-templates of tem.
function top_sub_templates($tem, $is_sub = 'is_sub_template') {
function_exists($is_sub) or die("no such function '$is_sub'.");
@@ -249,22 +263,33 @@ function top_sub_templates($tem, $is_sub = 'is_sub_template') {
return $subs;
}
-# Replace top-level values in $main with top-level templates from $tem.
-function merge_templates($main, $tem) {
- $out = array('name' => $main['name'], 'pieces' => array());
-
- $subs = top_sub_templates($tem);
-
- foreach($main['pieces'] as $piece) {
- $sub = $subs[$piece['name']];
- if(is_array($piece) and !$piece['pieces'] and $sub and $sub['args'][0] != 'hide') {
- $piece = $subs[$piece['name']];
+# merge $subs (sub_templates) into variables in $main (template)
+function merge_sub_templates(&$main, &$subs) {
+ foreach($main['pieces'] as &$piece) {
+ if(is_array($piece)) { # not just text
+ if($piece['pieces']) {
+ # a sub-template in main
+ merge_sub_templates($piece, $subs);
+ } else {
+ # a value-slot in main
+ $sub = $subs[$piece['name']];
+ if($sub and $sub['args'][0] != 'hide') {
+ $piece = $subs[$piece['name']];
+ $piece['parent'] =& $main;
+ }
+ }
}
- $out['pieces'][] = $piece;
}
return $out;
}
+# Replace values in $main with top-level templates from $tem.
+function merge_templates(&$main, &$tem) {
+ $subs = top_sub_templates($tem);
+
+ merge_sub_templates($main, $subs);
+}
+
# tem_auto functions
@@ -285,34 +310,56 @@ function merge_templates($main, $tem) {
function tem_auto_sep(&$value, $key, $context) {
$rows =& $context['parent']['parent'];
if($rows['cur'] != count($rows['rows'])-1) # last row?
- return $value = true; # show once
+ return true; # show once
}
# auto-show once, only when this is the first row of the parent
function tem_auto_last(&$value, $key, $context) {
$rows =& $context['parent']['parent'];
if($rows['cur'] == count($rows['rows'])-1) # last row?
- return $value = true; # show once
+ return true; # show once
}
# auto-show once, only when this is the last row of the parent
function tem_auto_first(&$value, $key, $context) {
$rows =& $context['parent']['parent'];
if($rows['cur'] == 0) # first row?
- return $value = true; # show once
+ return true; # show once
}
-# 'show' sections will be shown unless the corresponding data value
-# is false (only false, not 0 or '' or array()).
-
+# 'show' sections will be shown unless the corresponding data
+# value === false
function tem_auto_show(&$value) {
- if($value !== false) $value = array(array());
+ if($value === null) return true;
return $value;
}
+# 'empty' sections will be shown only if the corresponding data value is the
+# empty string
+function tem_auto_empty(&$value) {
+ if($value === '') return true;
+ return null;
+}
+
+# 'nonempty' sections will not be shown if the corresponding data
+# value is the empty string
+function tem_auto_nonempty(&$value) {
+ if($value === '') return null;
+ return $value;
+}
+
+# 'unset' sections will not be shown if the corresponding data
+# value is not set (opposite of default)
+function tem_auto_unset(&$value) {
+ if($value === null) {
+ return '';
+ } else {
+ return null;
+ }
+}
+
# 'evenodd' sections are given an 'evenodd' attribute whose value
# alternates between 'even' and 'odd'.
-
function tem_auto_evenodd(&$values) {
$even = true;
if($values) foreach($values as &$value) {
@@ -322,6 +369,27 @@ function tem_auto_evenodd(&$values) {
return $values;
}
+# 'once' sections are shown exactly once if the value is set (and not at all
+# otherwise.) This is useful when an array value would otherwise cause the
+# section to be displayed multiple times.
+function tem_auto_once(&$value) {
+ if($value === null) return null;
+ return true;
+}
+
+function tem_auto_once_if(&$value) {
+ if($value) return true;
+ return null;
+}
+
+# 'once' sections are shown exactly once if php evaluates the value to false
+# (and not at all otherwise.) This is useful when an array value would
+# otherwise cause the section to be displayed multiple times.
+function tem_auto_once_else(&$value) {
+ if($value) return null;
+ return true;;
+}
+
@@ -374,10 +442,16 @@ class tem {
$this->data = array();
}
- function set($key, $value) {
+ function set($key, $value = true) {
$this->data[$key] = $value;
}
+ function sets($hash) {
+ foreach($hash as $key => $value) {
+ $this->set($key, $value);
+ }
+ }
+
function append($key, $value) {
$this->data[$key] .= $value;
}
@@ -409,11 +483,11 @@ class tem {
}
function load_str($str) {
- $this->template = parse_template($str);
+ $this->template =& parse_template($str);
}
function load($filename) {
- $this->template = parse_template_file($filename);
+ $this->template =& parse_template_file($filename);
}
function run($tem = false) {
@@ -442,7 +516,14 @@ class tem {
# merge the data arrays and template trees (new style)
$this->data = array_merge($this->data, $tem->data);
- $this->template = merge_templates($this->template, $tem->template);
+ merge_templates($this->template, $tem->template);
+ }
+
+ # see merge() above
+ function merge_file($filename) {
+ $other_tem = new tem();
+ $other_tem->load($filename);
+ $this->merge($other_tem);
}
function top_sub_names($is_sub = 'is_sub_template') {
@@ -480,11 +561,16 @@ function tem_prepend($key, $value) {
$GLOBALS['wfpl_template']->prepend($key, $value);
}
-function tem_set($key, $value) {
+function tem_set($key, $value = true) {
tem_init();
$GLOBALS['wfpl_template']->set($key, $value);
}
+function tem_sets($hash) {
+ tem_init();
+ $GLOBALS['wfpl_template']->sets($hash);
+}
+
function tem_get($key) {
tem_init();
return $GLOBALS['wfpl_template']->get($key);
@@ -510,6 +596,16 @@ function tem_load($filename) {
$GLOBALS['wfpl_template']->load($filename);
}
+function tem_merge($tem) {
+ tem_init();
+ $GLOBALS['wfpl_template']->merge($tem);
+}
+
+function tem_merge_file($filename) {
+ tem_init();
+ $GLOBALS['wfpl_template']->merge_file($filename);
+}
+
function tem_output($filename = false) {
tem_init();
$GLOBALS['wfpl_template']->output($filename);