QScintilla/Lexers/LexerContainer.py

Sat, 02 Jan 2010 15:11:35 +0000

author
Detlev Offenbach <detlev@die-offenbachs.de>
date
Sat, 02 Jan 2010 15:11:35 +0000
changeset 12
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child 13
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permissions
-rw-r--r--

First commit after changing to Python 3.1.

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1 # -*- coding: utf-8 -*-
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2
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3 # Copyright (c) 2008 - 2009 Detlev Offenbach <detlev@die-offenbachs.de>
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4 #
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5
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6 """
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7 Module implementing a base class for custom lexers.
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8 """
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9
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10 from PyQt4.Qsci import QsciLexer
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11
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12 from .Lexer import Lexer
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13
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14 class LexerContainer(QsciLexer, Lexer):
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15 """
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16 Subclass as a base for the implementation of custom lexers.
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17 """
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18 def __init__(self, parent = None):
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19 """
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20 Constructor
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21
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22 @param parent parent widget of this lexer
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23 """
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24 QsciLexer.__init__(self, parent)
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25 Lexer.__init__(self)
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26
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27 self.editor = parent
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28
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29 def language(self):
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30 """
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31 Public method returning the language of the lexer.
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32
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33 @return language of the lexer (string)
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34 """
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35 return "Container"
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36
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37 def lexer(self):
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38 """
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39 Public method returning the type of the lexer.
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40
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41 @return type of the lexer (string)
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42 """
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43 if hasattr(self, 'lexerId'):
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44 return None
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45 else:
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46 return "container"
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47
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48 def description(self, style):
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49 """
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50 Public method returning the descriptions of the styles supported
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51 by the lexer.
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52
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53 <b>Note</b>: This methods needs to be overridden by the lexer class.
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54
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55 @param style style number (integer)
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56 @return description for the given style (string)
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57 """
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58 return ""
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59
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60 def styleBitsNeeded(self):
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61 """
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62 Public method to get the number of style bits needed by the lexer.
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63
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64 @return number of style bits needed (integer)
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65 """
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66 return 5
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67
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68 def styleText(self, start, end):
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69 """
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70 Public method to perform the styling.
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71
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72 @param start position of first character to be styled (integer)
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73 @param end position of last character to be styled (integer)
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74 """
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75 self.editor.startStyling(start, 0x1f)
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76 self.editor.setStyling(end - start + 1, 0)

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