fix(attributes): fixed poor django attribute parsing

Allow multiple attribute styles inside a quoted value. Split the attribute name into a group to help
resolve #427

closes #438

src/djlint/formatter/attributes.py

@@ -258,7 +258,12 @@ def format_attributes(config: Config, html: str, match: re.match) -> str:
 
     # format attributes as groups
     attributes = (spacing).join(
-        re.findall(config.attribute_pattern, match.group(3).strip(), re.VERBOSE)
+        [
+            x.group()
+            for x in re.finditer(
+                config.attribute_pattern, match.group(3).strip(), re.VERBOSE
+            )
+        ]
     )
 
     close = match.group(4)

src/djlint/formatter/indent.py

@@ -197,6 +197,7 @@ def indent_html(rawcode: str, config: Config) -> str:
         # if a normal tag, we can try to expand attributes
         elif is_block_raw is False:
             # get leading space, and attributes
+
             func = partial(format_attributes, config, item)
 
             tmp = re.sub(

src/djlint/settings.py

@@ -510,29 +510,54 @@ class Config:
         self.template_if_for_pattern = (
             r"(?:{%-?\s?(?:if|for)[^}]*?%}(?:.*?{%\s?end(?:if|for)[^}]*?-?%})+?)"
         )
+
         self.attribute_pattern: str = (
-            r"""
+            rf"""
-            (?:[^\s]+?[ ]*?=[ ]*?(?:\"[^\"]*?"""
+            (?:
-            + self.template_if_for_pattern
+                (?:
-            + r"""[^\"]*?\"|\'[^\']*?"""
+                    (?:\w|-|\.)+ | required | checked
-            + self.template_if_for_pattern
+                ) # attribute name
-            + r"""[^\']*?\'))
+                (?:  [ ]*?=[ ]*? # followed by "="
-            | (?:[^\s]+?[ ]*?=[ ]*?(?:\"[^\"]*?{{.*?}}[^\"]*?\"|\'[^\']*?{{.*?}}[^\']*?\'))
+                    (?:
-            | """
+                        \"[^\"]*? # double quoted attribute
-            + self.template_if_for_pattern
+                        (?:
+                            {self.template_if_for_pattern} # if or for loop
+                           | {{{{.*?}}}} # template stuff
+                           | {{%[^}}]*?%}}
+                           | [^\"] # anything else
+                        )*?
+                        \" # closing quote
+                      | '[^']*? # single quoted attribute
+                        (?:
+                            {self.template_if_for_pattern} # if or for loop
+                           | {{{{.*?}}}} # template stuff
+                           | {{%[^}}]*?%}}
+                           | [^'] # anything else
+                        )*?
+                        \' # closing quote
+                      | (?:\w|-)+ # or a non-quoted value
+
+                    )
+                )? # attribute value
+            )
+            | {self.template_if_for_pattern}
+            """
             + r"""
-            | (?:[^\s]+?[ ]*?=[ ]*?(?:\"(?:[^\"]*?{%[^}]*?%}[^\"]*?)+?\"))
-            | (?:[^\s]+?[ ]*?=[ ]*?(?:\'(?:[^\']*?{%[^}]*?%}[^\']*?)+?\'))
-            | (?:[^\s]+?[ ]*?=[ ]*?(?:\".*?\"|\'.*?\'))
-            | required
-            | checked
-            | (?:\w|-|\.)+
-            | (?:\w|-|\.)+[ ]*?=[ ]*?(?:\w|-)+
             | {{.*?}}
             | {%.*?%}
         """
         )
 
+        # + r"""[^\"]*?\"|\'[^\']*?"""
+        #            + self.template_if_for_pattern
+        #            + r"""[^\']*?\'))
+        #            | (?:[^\s]+?[ ]*?=[ ]*?(?:\"[^\"]*?{{.*?}}[^\"]*?\"|\'[^\']*?{{.*?}}[^\']*?\'))
+        #            | """
+        #            + self.template_if_for_pattern
+        #            + r"""
+        #            | (?:[^\s]+?[ ]*?=[ ]*?(?:\"(?:[^\"]*?{%[^}]*?%}[^\"]*?)+?\"))
+        ##            | (?:[^\s]+?[ ]*?=[ ]*?(?:\'(?:[^\']*?{%[^}]*?%}[^\']*?)+?\'))
+        #           | (?:[^\s]+?[ ]*?=[ ]*?(?:\".*?\"|\'.*?\'))
         self.attribute_style_pattern: str = r"^(.*?)(style=)([\"|'])(([^\"']+?;)+?)\3"
 
         self.start_template_tags: str = (