Fix #97, #98, 101, 102

Author: MikeAlhayek

README.md

@@ -135,7 +135,8 @@ Checkout our channel on <a href="https://www.youtube.com/channel/UCkEd0nOoRf3o0a
 
 ## Contribution
 Do you like this project and want to contribute?
-- Please start by *Staring* this package on GitHub.
+- **HELP WANTED** Version `v2.3` needs to be documented before it can be released. If you are able to contribute, please read the <a href="https://github.com/CrestApps/laravel-code-generator/blob/v2.3/CHANGELOG.md">change-log</a> in <a href="https://github.com/CrestApps/laravel-code-generator/tree/v2.3">v2.3 branch</a> and document it in the <a href="https://github.com/CrestApps/crestapps-site">CrestApps-site</a> repository. For any help, my email can be found in the `composer.json` file, feel free to send me an email.
+- Please start by ***Staring*** this package on GitHub.
 - Sharing this projects with others is your way of saying keep improvements and new awesome feature coming.
 - Report any bugs or send us any comments, idea, thought that you may have about this project as an issue on GitHub.
 

src/Support/FieldOptimizer.php

@@ -209,7 +209,6 @@ protected function optimizeBoolean()
     protected function optimizePrimaryKey()
     {
         if ($this->field->isPrimary()) {
-			
 			$this->field->isNullable = false;
 
             if ($this->meta == null) {

src/Support/FieldTransformer.php

@@ -92,17 +92,24 @@ public static function fromString($str, $localeGroup = 'generic', array $languag
             if (str_contains($fieldName, ':')) {
                 // Handle the following format
                 // name:a;html-type:select;options:first|second|third|fourth
-                if (!str_is('*name*:*', $fieldName)) {
+                if (!Str::is('*name*:*', $fieldName)) {
                     throw new Exception('The "name" property was not provided and is required!');
                 }
 
                 $parts = Arr::fromString($fieldName, ';');
 
                 foreach ($parts as $part) {
-                    if (!str_is('*:*', $part) || count($properties = Arr::fromString($part, ':')) < 2) {
+                    if (!Str::is('*:*', $part) || count($properties = Arr::fromString($part, ':')) < 2) {
                         throw new Exception('Each provided property should use the following format "key:value"');
                     }
                     list($key, $value) = $properties;
+					
+                    if(Str::startsWith($key, 'is-')){
+                        $field[$key] = Str::stringToBool($value);
+                    } else {
+                        $field[$key] = $value;
+                    }
+					
                     $field[$key] = $value;
                     if ($key == 'options') {
                         $options = Arr::fromString($value, '|');

src/Support/Str.php

@@ -126,7 +126,22 @@ public static function trimStart($subject, $search)
 
         return $subject;
     }
-
+	
+    /**
+     * Check a string for a positive keyword
+     *
+     * @param string $str
+     *
+     * @return array
+     */
+    public static function stringToBool($str)
+    {
+        if (is_bool($str)) {
+            return $str;
+        }
+        return in_array(strtolower($str), ['true', 'yes', '1', 'valid', 'correct']);
+    }
+	
     /**
      * Checks if a string matches at least one given pattern
      *