diff --git a/src/output/std/StdOutput.php b/src/output/std/StdOutput.php
index 7790b9c..60a5698 100644
--- a/src/output/std/StdOutput.php
+++ b/src/output/std/StdOutput.php
@@ -4,7 +4,7 @@ namespace nur\sery\output\std;
 use Exception;
 use nur\sery\cl;
 use nur\sery\file\Stream;
-use nur\sery\php\content\content;
+use nur\sery\php\content\c;
 
 /**
  * Class StdOutput: affichage sur STDOUT, STDERR ou dans un fichier quelconque
@@ -187,9 +187,9 @@ class StdOutput {
   }
 
   function getLines(bool $withNl, ...$values): array {
-    $values = content::flatten($values);
+    $values = c::resolve($values, null, false);
     if (!$values) return [];
-    $text = implode("", $values);
+    $text = c::to_string($values, false);
     if ($text === "") return [""];
     $text = $this->filterContent($text);
     if (!$this->color) $text = $this->filterColors($text);
diff --git a/src/php/content/content.php b/src/php/content/content.php
deleted file mode 100644
index f0006c9..0000000
--- a/src/php/content/content.php
+++ /dev/null
@@ -1,147 +0,0 @@
-<?php
-namespace nur\sery\php\content;
-
-use nur\sery\cl;
-use nur\sery\php\func;
-
-/**
- * Class content: gestionnaire de contenu (statique ou dynamique)
- */
-class content {
-  /** quoter $vs si c'est un scalaire. sinon retourner le tableau tel quel */
-  static final function quote($contents): iterable {
-    if ($contents === null || $contents === false) return [];
-    elseif ($contents instanceof IContent) return [$contents];
-    elseif ($contents instanceof IPrintable) return [$contents];
-    elseif (is_iterable($contents)) return $contents;
-    else return [htmlspecialchars(strval($contents))];
-  }
-
-  /**
-   * applatir $contents, et retourner une liste de valeurs scalaires:
-   * - les instances de IContent et IPrintable sont remplacées par leur contenu
-   * - les chaines sont ajoutées telles quelles
-   * - les autres objets sont transformés en chaine de caractère avec strval()
-   */
-  static function flatten($contents, ?array &$dest=null): array {
-    if ($dest === null) $dest = [];
-    if ($contents === null) return $dest;
-    if ($contents instanceof IContent) {
-      $contents = $contents->getContent();
-    } elseif ($contents instanceof IPrintable) {
-      ob_start(null, 0, PHP_OUTPUT_HANDLER_STDFLAGS ^ PHP_OUTPUT_HANDLER_FLUSHABLE);
-      $contents->print();
-      $dest[] = ob_get_clean();
-      return $dest;
-    } elseif (is_scalar($contents)) {
-      $dest[] = $contents;
-      return $dest;
-    } elseif (!is_iterable($contents)) {
-      $dest[] = strval($contents);
-      return $dest;
-    }
-    # sinon parcourir $contents
-    foreach ($contents as $value) {
-      if ($value === null) continue;
-      elseif (is_scalar($value)) $dest[] = $value;
-      else self::flatten($value, $dest);
-    }
-    return $dest;
-  }
-
-  /**
-   * résoudre tout le contenu statique: il ne restera plus qu'une liste de
-   * chaines ou d'instances de IContent, IPrintable ou des objets quelconques
-   */
-  static function resolve_static($contents, $dest_class=null, bool $quote=true, ?array &$dest=null): array {
-    if ($dest === null) $dest = [];
-    if ($contents === null) return $dest;
-    if (is_string($contents)) {
-      if ($quote) $contents = htmlspecialchars($contents);
-      $dest[] = $contents;
-      return $dest;
-    } elseif ($contents instanceof IStaticContent) {
-      $contents = $contents->getContent();
-      $dest = cl::merge($dest, self::resolve_static($contents, $dest_class, false));
-      return $dest;
-    } elseif ($contents instanceof IContent) {
-      $dest[] = $contents;
-      return $dest;
-    } elseif ($contents instanceof IPrintable) {
-      $dest[] = $contents;
-      return $dest;
-    } elseif (!is_iterable($contents)) {
-      $dest[] = $contents;
-      return $dest;
-    }
-    foreach ($contents as $content) {
-      if ($content === null) continue;
-      elseif ($contents instanceof IStaticContent) {
-        $contents = $content->getContent();
-        $dest = cl::merge($dest, self::resolve_static($contents, $dest_class, false));
-      } elseif ($contents instanceof IContent) $dest[] = $content;
-      elseif ($contents instanceof IPrintable) $dest[] = $content;
-      elseif (!is_array($content)) $dest[] = $content;
-      else {
-        # ici, $content est soit:
-        # - un appel de fonction ou méthode statique d'une des formes suivantes:
-        #   - [class, method, ...args]
-        #   - [null, method, ...args]
-        #   - [[class, method], ...args]
-        #   - [[null, method], ...args]
-        # - ou une définition d'objet d'une des formes suivantes
-        #   - [class, ...args]
-        #   - [[class], ...args]
-        $func_isa_class = false;
-        if (array_key_exists(0, $content) && is_array($content[0])) {
-          # $content est de la forme [func_or_class, ...args]
-          $func = $content[0];
-          $args = array_slice($content, 1);
-          if (func::is_static($func)) {
-            func::ensure_func($func, $dest_class, $args);
-          } elseif (func::is_class($func)) {
-            $func_isa_class = true;
-            func::fix_class_args($func, $args);
-          } else {
-            func::ensure_func($func, $dest_class, $args);
-          }
-        } else {
-          # $content est de la forme $func
-          $func = $content;
-          if (func::is_static($func)) {
-            func::ensure_func($func, $dest_class, $args);
-          } elseif (func::is_class($func)) {
-            $func_isa_class = true;
-            func::fix_class_args($func, $args);
-          } else {
-            func::ensure_func($func, $dest_class, $args);
-          }
-        }
-        # chaque argument est un contenu statique
-        foreach ($args as &$arg) {
-          $array = is_array($arg);
-          $arg = self::resolve_static($arg, $dest_class, false);
-          $arg = self::flatten($arg);
-          if ($array) {
-            $arg = [implode("", $arg)];
-          } else {
-            switch (count($arg)) {
-            case 0: $arg = null; break;
-            case 1: $arg = $arg[0]; break;
-            default: $arg = implode("", $arg);
-            }
-          }
-        }; unset($arg);
-        # puis appeler la fonction
-        if ($func_isa_class) $content = func::cons($func, ...$args);
-        else $content = func::call($func, ...$args);
-        $dest[] = $content;
-      }
-    }
-    return $dest;
-  }
-
-  static function to_string($contents, $dest_class=null, bool $quote=true): string {
-    return implode("", self::flatten(self::resolve_static($contents, $dest_class, $quote)));
-  }
-}