ProjectWeb/Html5ToCss3Converter.py

branch
eric7
changeset 43
2bed42620c99
parent 41
836c696f9565
child 48
17eb790b9a82
--- a/ProjectWeb/Html5ToCss3Converter.py	Thu Dec 30 12:22:34 2021 +0100
+++ b/ProjectWeb/Html5ToCss3Converter.py	Wed Sep 21 15:36:01 2022 +0200
@@ -15,61 +15,88 @@
 from PyQt6.QtCore import QObject
 from PyQt6.QtWidgets import QDialog
 
-from .Html5ToCss3ConverterParameterDialog import (
-    Html5ToCss3ConverterParameterDialog
-)
+from .Html5ToCss3ConverterParameterDialog import Html5ToCss3ConverterParameterDialog
 
 
 class Html5ToCss3Converter(QObject):
     """
     Class implementing the HTML5 to CSS3 converter.
     """
+
     CssTemplate7 = "{0}{1}{2}{3}{4}{5}{6}"
     CssTemplate8 = "{0}{1}{2}{3}{4}{5}{6}{7}"
-    Placeholders = ('margin:0', 'padding:0', 'border:0', 'font-size:100%',
-                    'font:inherit', 'vertical-align:baseline', 'line-height:1',
-                    'outline:0', 'font-weight:inherit', 'font-style:inherit',
-                    'font-family:inherit', 'vertical-align:baseline')
-    TagsToIgnore = ('head', 'meta', 'noscript', 'script', 'style', 'link',
-                    'no-js', 'title', 'object', 'col', 'colgroup', 'option',
-                    'param', 'audio', 'basefont', 'isindex', 'svg', 'area',
-                    'embed', 'br')
-    
+    Placeholders = (
+        "margin:0",
+        "padding:0",
+        "border:0",
+        "font-size:100%",
+        "font:inherit",
+        "vertical-align:baseline",
+        "line-height:1",
+        "outline:0",
+        "font-weight:inherit",
+        "font-style:inherit",
+        "font-family:inherit",
+        "vertical-align:baseline",
+    )
+    TagsToIgnore = (
+        "head",
+        "meta",
+        "noscript",
+        "script",
+        "style",
+        "link",
+        "no-js",
+        "title",
+        "object",
+        "col",
+        "colgroup",
+        "option",
+        "param",
+        "audio",
+        "basefont",
+        "isindex",
+        "svg",
+        "area",
+        "embed",
+        "br",
+    )
+
     def __init__(self, html, parent=None):
         """
         Constructor
-        
+
         @param html HTML text to be converted
         @type str
         @param parent reference to the parent object
         @type QObject
         """
         super().__init__(parent)
-        
+
         self.__html = html
-    
+
     def getCss3(self):
         """
         Public method to get the converted CSS3 text.
-        
+
         @return CSS3 text
         @rtype str
         """
         dlg = Html5ToCss3ConverterParameterDialog()
         if dlg.exec() == QDialog.DialogCode.Accepted:
             indentation, placeholders = dlg.getData()
-            
+
             self.__createSoup()
-            
+
             alreadyDone = list(self.TagsToIgnore)
-            
+
             css = '@charset "utf-8";{0}'.format(os.linesep)
             css += "/* {0} by {1}*/{2}".format(
                 datetime.datetime.now().isoformat().split(".")[0],
                 getpass.getuser(),
-                2 * os.linesep
+                2 * os.linesep,
             )
-            
+
             # step 1: tags
             for tag in self.__getTags():
                 if tag not in alreadyDone:
@@ -78,100 +105,93 @@
                         "{",
                         os.linesep,
                         indentation,
-                        random.choice(self.Placeholders) + os.linesep   # secok
-                        if placeholders else os.linesep,
+                        random.choice(self.Placeholders) + os.linesep  # secok
+                        if placeholders
+                        else os.linesep,
                         "}",
-                        os.linesep
+                        os.linesep,
                     )
                     alreadyDone.append(tag)
-            css += "/*{0}*/{1}".format(
-                "-" * 75,
-                os.linesep
-            )
-            
+            css += "/*{0}*/{1}".format("-" * 75, os.linesep)
+
             # step 2: IDs
             for id_ in self.__getIds():
                 if id_ not in alreadyDone:
-                    css += "/* {0} */{1}".format(
-                        "_".join(id_).lower(),
-                        os.linesep
-                    )
+                    css += "/* {0} */{1}".format("_".join(id_).lower(), os.linesep)
                     css += self.CssTemplate8.format(
                         "#",
                         id_[1],
                         "{",
                         os.linesep,
                         indentation,
-                        random.choice(self.Placeholders) + os.linesep   # secok
-                        if placeholders else os.linesep,
+                        random.choice(self.Placeholders) + os.linesep  # secok
+                        if placeholders
+                        else os.linesep,
                         "}",
-                        os.linesep
+                        os.linesep,
                     )
                     alreadyDone.append(id_)
-            css += "/*{0}*/{1}".format(
-                "-" * 75,
-                os.linesep
-            )
-            
+            css += "/*{0}*/{1}".format("-" * 75, os.linesep)
+
             # step 3: classes
             for class_ in self.__getClasses():
                 if class_ not in alreadyDone:
-                    css += "/* {0} */{1}".format(
-                        "_".join(class_).lower(),
-                        os.linesep
-                    )
+                    css += "/* {0} */{1}".format("_".join(class_).lower(), os.linesep)
                     css += self.CssTemplate8.format(
                         ".",
                         ", .".join(class_[1].split()),
                         "{",
                         os.linesep,
                         indentation,
-                        random.choice(self.Placeholders) + os.linesep   # secok
-                        if placeholders else os.linesep,
+                        random.choice(self.Placeholders) + os.linesep  # secok
+                        if placeholders
+                        else os.linesep,
                         "}",
-                        os.linesep
+                        os.linesep,
                     )
                     alreadyDone.append(class_)
         else:
             css = ""
         return css.strip()
-    
+
     def __createSoup(self):
         """
         Private method to get a BeaitifulSoup object with our HTML text.
         """
         from bs4 import BeautifulSoup
+
         self.__soup = BeautifulSoup(BeautifulSoup(self.__html).prettify())
-    
+
     def __getTags(self):
         """
         Private method to extract all tags of the HTML text.
-        
+
         @return list of all tags
         @rtype list of str
         """
         tags = [t.name for t in self.__soup.find_all(True)]
         return list(set(tags))
-    
+
     def __getClasses(self):
         """
         Private method to extract all classes of the HTML text.
-        
+
         @return list of tuples containing the tag name and its classes
             as a blank separated string
         @rtype list of tuples of (str, str)
         """
-        classes = [(t.name, " ".join(t["class"])) for t in
-                   self.__soup.find_all(True, {"class": True})]
+        classes = [
+            (t.name, " ".join(t["class"]))
+            for t in self.__soup.find_all(True, {"class": True})
+        ]
         return sorted(set(classes))
-    
+
     def __getIds(self):
         """
         Private method to extract all IDs of the HTML text.
-        
+
         @return list of tuples containing the tag name and its ID
         @rtype list of tuples of (str, str)
         """
-        ids = [(t.name, t["id"]) for t in
-               self.__soup.find_all(True, {"id": True})]
+        ids = [(t.name, t["id"]) for t in self.__soup.find_all(True, {"id": True})]
         return sorted(set(ids))

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