Mercurial Repositories > eric / file diff

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/eric7/UI/DiffHighlighter.py	Sat May 15 18:45:04 2021 +0200
@@ -0,0 +1,59 @@
+# -*- coding: utf-8 -*-
+
+# Copyright (c) 2015 - 2021 Detlev Offenbach <detlev@die-offenbachs.de>
+#
+
+"""
+Module implementing a syntax highlighter for unified and context diff outputs.
+"""
+
+from E5Gui.E5GenericDiffHighlighter import TERMINAL, E5GenericDiffHighlighter
+
+
+class DiffHighlighter(E5GenericDiffHighlighter):
+    """
+    Class implementing a diff highlighter for Git.
+    """
+    def __init__(self, doc):
+        """
+        Constructor
+        
+        @param doc reference to the text document (QTextDocument)
+        """
+        super().__init__(doc)
+
+    def generateRules(self):
+        """
+        Public method to generate the rule set.
+        """
+        diffHeaderBold = self.makeFormat(fg=self.textColor,
+                                         bg=self.headerColor,
+                                         bold=True)
+        diffContext = self.makeFormat(fg=self.textColor,
+                                      bg=self.contextColor)
+
+        diffAdded = self.makeFormat(fg=self.textColor,
+                                    bg=self.addedColor)
+        diffRemoved = self.makeFormat(fg=self.textColor,
+                                      bg=self.removedColor)
+        diffReplaced = self.makeFormat(fg=self.textColor,
+                                       bg=self.replacedColor)
+        
+        diffBarRegex = TERMINAL(r'^\*+$')
+
+        diffOldRegex = TERMINAL(r'^--- ')
+        diffNewRegex = TERMINAL(r'^\+\+\+ |^\*\*\*')
+        diffContextRegex = TERMINAL(r'^@@ ')
+        
+        diffAddedRegex = TERMINAL(r'^[+>]')
+        diffRemovedRegex = TERMINAL(r'^[-<]')
+        diffReplacedRegex = TERMINAL(r'^!')
+        
+        self.createRules((diffBarRegex, diffHeaderBold),
+                         (diffOldRegex, diffRemoved),
+                         (diffNewRegex, diffAdded),
+                         (diffContextRegex, diffContext),
+                         (diffAddedRegex, diffAdded),
+                         (diffRemovedRegex, diffRemoved),
+                         (diffReplacedRegex, diffReplaced),
+                         )