# -*- coding: utf-8 -*-

# Copyright (c) 2008 - 2012 Detlev Offenbach <detlev@die-offenbachs.de>
#

"""
Module implementing a XML lexer with some additional methods.
"""

from PyQt4.Qsci import QsciLexerXML
from PyQt4.QtCore import QString

from Lexer import Lexer
import Preferences

class LexerXML(QsciLexerXML, Lexer):
    """ 
    Subclass to implement some additional lexer dependant methods.
    """
    def __init__(self, parent=None):
        """
        Constructor
        
        @param parent parent widget of this lexer
        """
        QsciLexerXML.__init__(self, parent)
        Lexer.__init__(self)
        
        self.streamCommentString = {
            'start' : QString('<!-- '),
            'end'   : QString(' -->')
        }
    
    def initProperties(self):
        """
        Public slot to initialize the properties.
        """
        self.setFoldPreprocessor(Preferences.getEditor("HtmlFoldPreprocessor"))
        self.setCaseSensitiveTags(\
            Preferences.getEditor("HtmlCaseSensitiveTags"))
        self.setFoldCompact(Preferences.getEditor("AllFoldCompact"))
        try:
            self.setFoldScriptComments(Preferences.getEditor("HtmlFoldScriptComments"))
            self.setFoldScriptHeredocs(Preferences.getEditor("HtmlFoldScriptHeredocs"))
            self.setScriptsStyled(Preferences.getEditor("XMLStyleScripts"))
        except AttributeError:
            pass
    
    def isCommentStyle(self, style):
        """
        Public method to check, if a style is a comment style.
        
        @return flag indicating a comment style (boolean)
        """
        return style in [QsciLexerXML.HTMLComment, 
                         QsciLexerXML.ASPXCComment, 
                         QsciLexerXML.SGMLComment, 
                         QsciLexerXML.SGMLParameterComment, 
                         QsciLexerXML.JavaScriptComment, 
                         QsciLexerXML.JavaScriptCommentDoc, 
                         QsciLexerXML.JavaScriptCommentLine, 
                         QsciLexerXML.ASPJavaScriptComment, 
                         QsciLexerXML.ASPJavaScriptCommentDoc, 
                         QsciLexerXML.ASPJavaScriptCommentLine, 
                         QsciLexerXML.VBScriptComment, 
                         QsciLexerXML.ASPVBScriptComment, 
                         QsciLexerXML.PythonComment, 
                         QsciLexerXML.ASPPythonComment, 
                         QsciLexerXML.PHPComment]
    
    def isStringStyle(self, style):
        """
        Public method to check, if a style is a string style.
        
        @return flag indicating a string style (boolean)
        """
        return style in [QsciLexerXML.HTMLDoubleQuotedString, 
                         QsciLexerXML.HTMLSingleQuotedString, 
                         QsciLexerXML.SGMLDoubleQuotedString, 
                         QsciLexerXML.SGMLSingleQuotedString, 
                         QsciLexerXML.JavaScriptDoubleQuotedString, 
                         QsciLexerXML.JavaScriptSingleQuotedString, 
                         QsciLexerXML.JavaScriptUnclosedString, 
                         QsciLexerXML.ASPJavaScriptDoubleQuotedString, 
                         QsciLexerXML.ASPJavaScriptSingleQuotedString, 
                         QsciLexerXML.ASPJavaScriptUnclosedString, 
                         QsciLexerXML.VBScriptString, 
                         QsciLexerXML.VBScriptUnclosedString, 
                         QsciLexerXML.ASPVBScriptString, 
                         QsciLexerXML.ASPVBScriptUnclosedString, 
                         QsciLexerXML.PythonDoubleQuotedString, 
                         QsciLexerXML.PythonSingleQuotedString, 
                         QsciLexerXML.PythonTripleDoubleQuotedString, 
                         QsciLexerXML.PythonTripleSingleQuotedString, 
                         QsciLexerXML.ASPPythonDoubleQuotedString, 
                         QsciLexerXML.ASPPythonSingleQuotedString, 
                         QsciLexerXML.ASPPythonTripleDoubleQuotedString, 
                         QsciLexerXML.ASPPythonTripleSingleQuotedString, 
                         QsciLexerXML.PHPDoubleQuotedString, 
                         QsciLexerXML.PHPSingleQuotedString]
