Mercurial Repositories > eric / file diff

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/QScintilla/Lexers/LexerContainer.py	Mon Dec 28 16:03:33 2009 +0000
@@ -0,0 +1,76 @@
+# -*- coding: utf-8 -*-
+
+# Copyright (c) 2008 - 2009 Detlev Offenbach <detlev@die-offenbachs.de>
+#
+
+"""
+Module implementing a base class for custom lexers.
+"""
+
+from PyQt4.Qsci import QsciLexer
+
+from Lexer import Lexer
+
+class LexerContainer(QsciLexer, Lexer):
+    """ 
+    Subclass as a base for the implementation of custom lexers.
+    """
+    def __init__(self, parent = None):
+        """
+        Constructor
+        
+        @param parent parent widget of this lexer
+        """
+        QsciLexer.__init__(self, parent)
+        Lexer.__init__(self)
+        
+        self.editor = parent
+    
+    def language(self):
+        """
+        Public method returning the language of the lexer.
+        
+        @return language of the lexer (string)
+        """
+        return "Container"
+    
+    def lexer(self):
+        """
+        Public method returning the type of the lexer.
+        
+        @return type of the lexer (string)
+        """
+        if hasattr(self, 'lexerId'):
+            return None
+        else:
+            return "container"
+    
+    def description(self, style):
+        """
+        Public method returning the descriptions of the styles supported
+        by the lexer.
+        
+        <b>Note</b>: This methods needs to be overridden by the lexer class.
+        
+        @param style style number (integer)
+        @return description for the given style (string)
+        """
+        return ""
+    
+    def styleBitsNeeded(self):
+        """
+        Public method to get the number of style bits needed by the lexer.
+        
+        @return number of style bits needed (integer)
+        """
+        return 5
+    
+    def styleText(self, start, end):
+        """
+        Public method to perform the styling.
+        
+        @param start position of first character to be styled (integer)
+        @param end position of last character to be styled (integer)
+        """
+        self.editor.startStyling(start, 0x1f)
+        self.editor.setStyling(end - start + 1, 0)