re-add tpl extraction

CHANGELOG.md

@@ -8,6 +8,8 @@
 - fix superadmin permissions
 - remove modules list tab and add button to existing lists
 - remove multi-modules import/export
+- .po export become a requirment
+- use l10n function sto generate .lang.php files
 
 2021.09.02
 - clean up code and fix typo

inc/class.dc.translater.lang.php

@@ -125,22 +125,26 @@ class dcTranslaterLang
     public function getMsgIds(): array
     {
         $res = [];
-        $files = dcTranslater::scandir($this->module->root);
-
         $scan_ext = ['php'];
         if ($this->translater->scan_tpl) {
-//            $scan_ext[] = 'html';
+            $scan_ext[] = 'html';
         }
 
-        foreach($files AS $file) {
-            if (is_dir($this->module->root . '/' . $file) 
-             || !in_array(files::getExtension($file), $scan_ext)) {
+        $files = dcTranslater::scandir($this->module->root);
+        foreach($files as $file) {
+            $extension = files::getExtension($file);
+            if (is_dir($this->module->root . '/' . $file) || !in_array($extension, $scan_ext)) {
                 continue;
             }
-
             $contents = file_get_contents($this->module->root . '/' . $file);
             # php files
-            $msgs = dcTranslater::extractPhpMsgs($contents);
+            if ($extension == 'php') {
+                $msgs = dcTranslater::extractPhpMsgs($contents);
+
+            # tpl files
+            } elseif ($extension == 'html') {
+                $msgs = dcTranslater::extractTplMsgs($contents);
+            }
             foreach($msgs as $msg) {
                 $res[] = [
                     'msgid'        => dcTranslater::encodeMsg($msg[0][0]),
@@ -150,8 +154,6 @@ class dcTranslaterLang
                 ];
             }
 
-            //TODO: tpl file extract
-
             unset($contents);
         }
         return $res;

inc/class.dc.translater.php

@@ -402,7 +402,7 @@ class dcTranslater
      * 
      * @param  string $content The contents
      * @param  string $func    The function name
-     * @return array          The messages
+     * @return array           The messages
      */
     public static function extractPhpMsgs(string $content, string $func = '__'): array
     {
@@ -447,6 +447,50 @@ class dcTranslater
         return $final_strings;
     }
 
+    /**
+     * Extract messages from a tpl contents
+     *
+     * support plurals
+     * 
+     * @param  string $content The contents
+     * @param  string $func    The function name
+     * @return array           The messages
+     */
+    public static function extractTplMsgs(string $content, string $func = 'tpl:lang'): array
+    {
+        $duplicate = $final_strings = $lines = [];
+        // split content by line to combine match/line on the end
+        $content = str_replace("\r\n", "\n", $content);
+        $o = 0;
+        $parts = explode("\n", $content);
+        foreach($parts as $li => $part) {
+            $m = explode('{{' . $func . ' ', $part);
+            for($i = 1; $i < count($m); $i++) {
+                $lines[$o] = $li+1;
+                $o++;
+            }
+        }
+        // split content by translation function
+        if (!preg_match_all('/\{\{' . preg_quote($func) . '\s([^}]+)\}\}/', $content, $parts)) {
+            return $final_strings;
+        }
+        // walk through parts
+        $p = 0;
+        foreach($parts[1] as $part) {
+            // strings exist
+            if (!empty($part)) {
+                // filter duplicate strings
+                if (!in_array($part, $duplicate)) {
+                    // fill final array
+                    $final_strings[] = [[$part], $lines[$p]];
+                    $duplicate[] = $part;
+                }
+            }
+            $p++;
+        }
+        return $final_strings;
+    }
+
     /**
      * Encode a string
      *