Mercurial Repositories > eric / file comparison
comparison: QScintilla/Lexers/LexerPython.py
QScintilla/Lexers/LexerPython.py
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| 1 # -*- coding: utf-8 -*- | |
| 2 | |
| 3 # Copyright (c) 2002 - 2009 Detlev Offenbach <detlev@die-offenbachs.de> | |
| 4 # | |
| 5 | |
| 6 """ | |
| 7 Module implementing a Python lexer with some additional methods. | |
| 8 """ | |
| 9 | |
| 10 import re | |
| 11 | |
| 12 from PyQt4.Qsci import QsciLexerPython, QsciScintilla | |
| 13 | |
| 14 from Lexer import Lexer | |
| 15 import Preferences | |
| 16 | |
| 17 class LexerPython(QsciLexerPython, Lexer): | |
| 18 """ | |
| 19 Subclass to implement some additional lexer dependant methods. | |
| 20 """ | |
| 21 def __init__(self, parent=None): | |
| 22 """ | |
| 23 Constructor | |
| 24 | |
| 25 @param parent parent widget of this lexer | |
| 26 """ | |
| 27 QsciLexerPython.__init__(self, parent) | |
| 28 Lexer.__init__(self) | |
| 29 | |
| 30 self.commentString = "#" | |
| 31 | |
| 32 def initProperties(self): | |
| 33 """ | |
| 34 Public slot to initialize the properties. | |
| 35 """ | |
| 36 if Preferences.getEditor("PythonBadIndentation"): | |
| 37 self.setIndentationWarning(QsciLexerPython.Inconsistent) | |
| 38 else: | |
| 39 self.setIndentationWarning(QsciLexerPython.NoWarning) | |
| 40 self.setFoldComments(Preferences.getEditor("PythonFoldComment")) | |
| 41 self.setFoldQuotes(Preferences.getEditor("PythonFoldString")) | |
| 42 if not Preferences.getEditor("PythonAutoIndent"): | |
| 43 self.setAutoIndentStyle(QsciScintilla.AiMaintain) | |
| 44 try: | |
| 45 self.setV2UnicodeAllowed(Preferences.getEditor("PythonAllowV2Unicode")) | |
| 46 self.setV3BinaryOctalAllowed(Preferences.getEditor("PythonAllowV3Binary")) | |
| 47 self.setV3BytesAllowed(Preferences.getEditor("PythonAllowV3Bytes")) | |
| 48 except AttributeError: | |
| 49 pass | |
| 50 | |
| 51 def getIndentationDifference(self, line, editor): | |
| 52 """ | |
| 53 Private method to determine the difference for the new indentation. | |
| 54 | |
| 55 @param line line to perform the calculation for (integer) | |
| 56 @param editor QScintilla editor | |
| 57 @return amount of difference in indentation (integer) | |
| 58 """ | |
| 59 indent_width = Preferences.getEditor('IndentWidth') | |
| 60 | |
| 61 lead_spaces = editor.indentation(line) | |
| 62 | |
| 63 pline = line - 1 | |
| 64 while pline >= 0 and re.match('^\s*(#.*)?$', editor.text(pline)): | |
| 65 pline -= 1 | |
| 66 | |
| 67 if pline < 0: | |
| 68 last = 0 | |
| 69 else: | |
| 70 previous_lead_spaces = editor.indentation(pline) | |
| 71 # trailing spaces | |
| 72 m = re.search(':\s*(#.*)?$', editor.text(pline)) | |
| 73 last = previous_lead_spaces | |
| 74 if m: | |
| 75 last += indent_width | |
| 76 else: | |
| 77 # special cases, like pass (unindent) or return (also unindent) | |
| 78 m = re.search('(pass\s*(#.*)?$)|(^[^#]return)', | |
| 79 editor.text(pline)) | |
| 80 if m: | |
| 81 last -= indent_width | |
| 82 | |
| 83 if lead_spaces % indent_width != 0 or lead_spaces == 0 \ | |
| 84 or self.lastIndented != line: | |
| 85 indentDifference = last - lead_spaces | |
| 86 else: | |
| 87 indentDifference = -indent_width | |
| 88 | |
| 89 return indentDifference | |
| 90 | |
| 91 def autoCompletionWordSeparators(self): | |
| 92 """ | |
| 93 Public method to return the list of separators for autocompletion. | |
| 94 | |
| 95 @return list of separators (list of strings) | |
| 96 """ | |
| 97 return ['.'] | |
| 98 | |
| 99 def isCommentStyle(self, style): | |
| 100 """ | |
| 101 Public method to check, if a style is a comment style. | |
| 102 | |
| 103 @return flag indicating a comment style (boolean) | |
| 104 """ | |
| 105 return style in [QsciLexerPython.Comment, | |
| 106 QsciLexerPython.CommentBlock] | |
| 107 | |
| 108 def isStringStyle(self, style): | |
| 109 """ | |
| 110 Public method to check, if a style is a string style. | |
| 111 | |
| 112 @return flag indicating a string style (boolean) | |
| 113 """ | |
| 114 return style in [QsciLexerPython.DoubleQuotedString, | |
| 115 QsciLexerPython.SingleQuotedString, | |
| 116 QsciLexerPython.TripleDoubleQuotedString, | |
| 117 QsciLexerPython.TripleSingleQuotedString, | |
| 118 QsciLexerPython.UnclosedString] |
