summaryrefslogtreecommitdiff
path: root/php/template.php
diff options
context:
space:
mode:
Diffstat (limited to 'php/template.php')
-rw-r--r--php/template.php370
1 files changed, 0 insertions, 370 deletions
diff --git a/php/template.php b/php/template.php
deleted file mode 100644
index cec1ff6..0000000
--- a/php/template.php
+++ /dev/null
@@ -1,370 +0,0 @@
-<?php
-
-namespace Luigi;
-
-const VERSION = '0.4.0';
-
-final class Error extends \Exception {};
-
-final class Filters {
- private static $filters = null;
-
- public static function init() {
- if (self::$filters !== null)
- return;
-
- self::$filters = array(
- 'h' => function($s) {
- return htmlspecialchars($v);
- },
-
- 'u' => function($s) {
- return urlencode($v);
- },
-
- 'json' => function($v) {
- return json_encode($v);
- },
-
- 'hash' => function($v, $args) {
- $algo = (count($args) == 1) ? $args[0] : 'md5';
- return hash($algo, $v);
- },
-
- 'base64' => function($v) {
- return base64_encode($v);
- },
-
- 'nl2br' => function($v) {
- return nl2br($v);
- },
-
- 'uc' => function($v) {
- return strtoupper($v);
- },
-
- 'lc' => function($v) {
- return strtolower($v);
- },
-
- 'trim' => function($v) {
- return trim($v);
- },
-
- 'rtrim' => function($v) {
- return rtrim($v);
- },
-
- 'ltrim' => function($v) {
- return ltrim($v);
- },
-
- 's' => function($v) {
- return ($v == 1) ? '' : 's';
- },
-
- 'strlen' => function($v) {
- return strlen($v);
- },
-
- 'count' => function($v) {
- return count($v);
- },
- );
- }
-
- public static function get($key) {
- self::init();
-
- if (!isset(self::$filters[$key]))
- throw new Error("unknown filter: $key");
-
- return self::$filters[$key];
- }
-
- public static function add(array $filters) {
- self::init();
- self::$filters = array_merge(self::$filters, $filters);
- }
-};
-
-final class LegacyParser {
- private static $RES = array(
- 'action' => '/
- # match opening brace
- %\{\s*
-
- # match key
- ([\w_-]+)
-
- # match filter(s)
- ((\s*\|\s*\w+\s*(\([\w\s,-]+\))?)*)
-
- # match closing brace
- \}
-
- # or match up all non-% chars or a single % char
- | ([^%]* | %)
- /mx',
-
- 'filter' => '/
- # match filter name
- ([\w_-]+)
-
- # optional trailing whitespace
- \s*
-
- # optional filter arguments
- (\(([\w\s_,-]+)\))?
- /mx',
- );
-
- public static function parse_template($template) {
- # build list of matches
- $matches = array();
- $num_matches = preg_match_all(
- self::$RES['action'],
- $template,
- $matches,
- PREG_SET_ORDER
- );
-
- # check for error
- if ($num_matches === false)
- throw new Error('error matching template');
-
- # walk over matches and build list of actions
- $r = array_map(function($m) {
- if ($m[1] !== '') {
- # key and filters
- return array(
- 'type' => 'action',
- 'key' => $m[1],
- 'filters' => self::parse_filters($m[2]),
- );
- } else {
- # literal text
- return array(
- 'type' => 'text',
- 'text' => $m[5],
- );
- }
- }, $matches);
-
- # return result
- return $r;
- }
-
- public static function parse_filters($filters) {
- # split into individual filters
- $r = array();
- foreach (preg_split('/\s*\|\s*/', $filters) as $f) {
- # skip empty filters
- if (!$f)
- continue;
-
- # match filter
- $md = array();
- if (!preg_match(self::$RES['filter'], $f, $md))
- throw new Error("invalid filter: $f");
-
- # add filter to results
- $r[] = array(
- # filter name
- 'name' => $md[1],
-
- # filter arguments
- 'args' => (count($md) > 2) ? preg_split(
- '/\s*,\s*/',
- trim($md[3])
- ) : array(),
- );
- }
-
- # return results
- return $r;
- }
-};
-
-final class Parser {
- private static $RES = array(
- 'action' => '/
- # match opening brace
- %\{
-
- # match optional whitespace
- \s*
-
- # match key
- (?<key>[^\s\|\}]+)
-
- # match filter(s)
- (?<filters>(\s*\|(\s*[^\s\|\}]+)+)*)
-
- # match optional whitespace
- \s*
-
- # match closing brace
- \}
-
- # or match up all non-% chars or a single % char
- | (?<text>[^%]* | %)
- /mx',
-
- 'filter' => '/
- # match filter name
- (?<name>\S+)
-
- # match filter arguments (optional)
- (?<args>(\s*\S+)*)
-
- # optional trailing whitespace
- \s*
- /mx',
-
- 'delim_filters' => '/\s*\|\s*/m',
- 'delim_args' => '/\s+/m',
- );
-
- public static function parse_template($template) {
- # build list of matches
- $matches = array();
- $num_matches = preg_match_all(
- self::$RES['action'],
- $template,
- $matches,
- PREG_SET_ORDER
- );
-
- # check for error
- if ($num_matches === false)
- throw new Error("invalid template: $template");
-
- # walk over matches and build list of actions
- $r = array_map(function($m) {
- if ($m['key'] !== '') {
- # key and filters
- return array(
- 'type' => 'action',
- 'key' => $m['key'],
- 'filters' => self::parse_filters($m['filters']),
- );
- } else {
- # literal text
- return array(
- 'type' => 'text',
- 'text' => $m['text'],
- );
- }
- }, $matches);
-
- # return result
- return $r;
- }
-
- public static function parse_filters($filters) {
- # split into individual filters
- $r = array();
- foreach (preg_split(self::$RES['delim_filters'], $filters) as $f) {
- # trim whitespace
- $f = trim($f);
-
- # skip empty filters
- if (!$f)
- continue;
-
- # match filter
- $md = array();
- if (!preg_match(self::$RES['filter'], $f, $md))
- throw new Error("invalid filter: $f");
-
- # add filter to results
- $r[] = array(
- # filter name
- 'name' => $md['name'],
-
- # filter arguments
- 'args' => (count($md) > 2) ? preg_split(
- self::$RES['delim_args'],
- trim($md['args'])
- ) : array(),
- );
- }
-
- # return results
- return $r;
- }
-};
-
-final class Template {
- private $template, $actions, $o;
-
- public function __construct($template, array $o = array()) {
- $this->template = $template;
- $this->o = $o;
-
- # parse template into list of actions
- $this->actions = Parser::parse_template($template);
- }
-
- public function run(array $args = array()) {
- # php sucks
- $me = $this;
-
- return join('', array_map(function($row) use ($me, $args) {
- if ($row['type'] == 'text') {
- # literal text
- return $row['text'];
- } else if ($row['type'] == 'action') {
- # template key (possibly with filters)
-
- # check value
- if (!isset($args[$row['key']]))
- throw new Error("unknown key: {$row['key']}");
-
- # pass value through filters and return result
- return array_reduce($row['filters'], function($r, $f) use ($me, $args) {
- # get filter
- $fn = Filters::get($f['name']);
-
- # call filter and return result
- return call_user_func($fn, $r, $f['args'], $args, $me);
- }, $args[$row['key']]);
- } else {
- # should never be reached
- throw new Error("unknown action type: {$row['type']}");
- }
- }, $this->actions));
- }
-
- public static function run_once($str, array $args = array()) {
- $t = new Template($str);
- return $t->run($args);
- }
-};
-
-final class Cache {
- private $templates, $o, $lut = array();
-
- public function __construct(array $templates, array $o = array()) {
- $this->templates = $templates;
- $this->o = $o;
- }
-
- public function get($key) {
- if (!isset($this->lut[$key])) {
- if (!isset($this->templates[$key]))
- throw new Error("unknown template: $key");
-
- # lazy-load template
- $this->lut[$key] = new Template($this->templates[$key], $this->o);
- }
-
- # return result
- return $this->lut[$key];
- }
-
- public function run($key, array $args = array()) {
- return $this->get($key)->run($args);
- }
-};
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-10 06:30:00 +0000