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

# Copyright (c) 2003 - 2013 Detlev Offenbach <detlev@die-offenbachs.de>
#

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

from PyQt4.Qsci import QsciLexerHTML
from PyQt4.QtCore import QString

from Lexer import Lexer
import Preferences

class LexerHTML(QsciLexerHTML, Lexer):
    """ 
    Subclass to implement some additional lexer dependant methods.
    """
    def __init__(self, parent=None):
        """
        Constructor
        
        @param parent parent widget of this lexer
        """
        QsciLexerHTML.__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"))
        except AttributeError:
            pass
        try:
            self.setDjangoTemplates(Preferences.getEditor("HtmlDjangoTemplates"))
            self.setMakoTemplates(Preferences.getEditor("HtmlMakoTemplates"))
        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 [QsciLexerHTML.HTMLComment, 
                         QsciLexerHTML.ASPXCComment, 
                         QsciLexerHTML.SGMLComment, 
                         QsciLexerHTML.SGMLParameterComment, 
                         QsciLexerHTML.JavaScriptComment, 
                         QsciLexerHTML.JavaScriptCommentDoc, 
                         QsciLexerHTML.JavaScriptCommentLine, 
                         QsciLexerHTML.ASPJavaScriptComment, 
                         QsciLexerHTML.ASPJavaScriptCommentDoc, 
                         QsciLexerHTML.ASPJavaScriptCommentLine, 
                         QsciLexerHTML.VBScriptComment, 
                         QsciLexerHTML.ASPVBScriptComment, 
                         QsciLexerHTML.PythonComment, 
                         QsciLexerHTML.ASPPythonComment, 
                         QsciLexerHTML.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 [QsciLexerHTML.HTMLDoubleQuotedString, 
                         QsciLexerHTML.HTMLSingleQuotedString, 
                         QsciLexerHTML.SGMLDoubleQuotedString, 
                         QsciLexerHTML.SGMLSingleQuotedString, 
                         QsciLexerHTML.JavaScriptDoubleQuotedString, 
                         QsciLexerHTML.JavaScriptSingleQuotedString, 
                         QsciLexerHTML.JavaScriptUnclosedString, 
                         QsciLexerHTML.ASPJavaScriptDoubleQuotedString, 
                         QsciLexerHTML.ASPJavaScriptSingleQuotedString, 
                         QsciLexerHTML.ASPJavaScriptUnclosedString, 
                         QsciLexerHTML.VBScriptString, 
                         QsciLexerHTML.VBScriptUnclosedString, 
                         QsciLexerHTML.ASPVBScriptString, 
                         QsciLexerHTML.ASPVBScriptUnclosedString, 
                         QsciLexerHTML.PythonDoubleQuotedString, 
                         QsciLexerHTML.PythonSingleQuotedString, 
                         QsciLexerHTML.PythonTripleDoubleQuotedString, 
                         QsciLexerHTML.PythonTripleSingleQuotedString, 
                         QsciLexerHTML.ASPPythonDoubleQuotedString, 
                         QsciLexerHTML.ASPPythonSingleQuotedString, 
                         QsciLexerHTML.ASPPythonTripleDoubleQuotedString, 
                         QsciLexerHTML.ASPPythonTripleSingleQuotedString, 
                         QsciLexerHTML.PHPDoubleQuotedString, 
                         QsciLexerHTML.PHPSingleQuotedString]
    
    def defaultKeywords(self, kwSet):
        """
        Public method to get the default keywords.
        
        @param kwSet number of the keyword set (integer)
        @return string giving the keywords (string) or None
        """
        return QsciLexerHTML.keywords(self, kwSet)
