fix: binding args error on not provide

Author: inhere

src/Flags.php

@@ -386,13 +386,16 @@ public function bindingArguments(): self
 
         // collect argument values
         foreach ($this->arguments as $index => $arg) {
-            if (!isset($args[$index]) && $arg->isRequired()) {
-                $mark = $arg->getNameMark();
-                throw new FlagException("flag argument $mark is required");
+            if (!isset($args[$index])) {
+                if ($arg->isRequired()) {
+                    $mark = $arg->getNameMark();
+                    throw new FlagException("flag argument $mark is required");
+                }
+                continue;
             }
 
             if ($arg->isArray()) {
-                // collect remain args
+                // collect all remain args
                 foreach ($args as $value) {
                     $arg->setValue($value);
                 }
@@ -404,7 +407,7 @@ public function bindingArguments(): self
         }
 
         if ($this->strictCheckArgs && $args) {
-            throw new FlagException(sprintf('unknown arguments (error: "%s").', implode(', ', $args)));
+            throw new FlagException(sprintf('unknown arguments (error: "%s").', implode(' ', $args)));
         }
 
         return $this;

src/SFlags.php

@@ -28,6 +28,7 @@
 use function strpos;
 use function substr;
 use function trim;
+use function vdump;
 
 /**
  * Class SFlags
@@ -546,8 +547,11 @@ public function bindingArguments(): void
             $required = $define['required'];
             $isArray  = FlagType::isArray($define['type']);
 
-            if ($required && !isset($args[$index])) {
-                throw new FlagException("flag argument $mark is required");
+            if (!isset($args[$index])) {
+                if ($required) {
+                    throw new FlagException("flag argument $mark is required");
+                }
+                continue;
             }
 
             // collect value