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1 # -*- coding: utf-8 -*- |
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2 |
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3 # Copyright (c) 2003 - 2022 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 SQL lexer with some additional methods. |
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8 """ |
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9 |
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10 import contextlib |
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11 |
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12 from PyQt6.Qsci import QsciLexerSQL |
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13 |
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14 from .Lexer import Lexer |
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15 import Preferences |
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16 |
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17 |
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18 class LexerSQL(Lexer, QsciLexerSQL): |
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19 """ |
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20 Subclass to implement some additional lexer dependant methods. |
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21 """ |
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22 def __init__(self, parent=None): |
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23 """ |
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24 Constructor |
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25 |
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26 @param parent parent widget of this lexer |
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27 """ |
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28 QsciLexerSQL.__init__(self, parent) |
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29 Lexer.__init__(self) |
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30 |
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31 self.commentString = "--" |
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32 |
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33 self.keywordSetDescriptions = [ |
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34 self.tr("Keywords"), |
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35 self.tr("Database Objects"), |
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36 self.tr("PLDoc"), |
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37 self.tr("SQL*Plus"), |
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38 self.tr("Standard Packages"), |
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39 self.tr("User defined 1"), |
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40 self.tr("User defined 2"), |
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41 self.tr("User defined 3"), |
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42 ] |
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43 |
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44 def initProperties(self): |
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45 """ |
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46 Public slot to initialize the properties. |
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47 """ |
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48 self.setFoldComments(Preferences.getEditor("SqlFoldComment")) |
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49 self.setBackslashEscapes(Preferences.getEditor("SqlBackslashEscapes")) |
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50 self.setFoldCompact(Preferences.getEditor("AllFoldCompact")) |
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51 with contextlib.suppress(AttributeError): |
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52 self.setDottedWords(Preferences.getEditor("SqlDottedWords")) |
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53 self.setFoldAtElse(Preferences.getEditor("SqlFoldAtElse")) |
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54 self.setFoldOnlyBegin(Preferences.getEditor("SqlFoldOnlyBegin")) |
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55 self.setHashComments(Preferences.getEditor("SqlHashComments")) |
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56 self.setQuotedIdentifiers( |
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57 Preferences.getEditor("SqlQuotedIdentifiers")) |
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58 |
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59 def isCommentStyle(self, style): |
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60 """ |
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61 Public method to check, if a style is a comment style. |
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62 |
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63 @param style style to check (integer) |
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64 @return flag indicating a comment style (boolean) |
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65 """ |
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66 return style in [QsciLexerSQL.Comment, |
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67 QsciLexerSQL.CommentDoc, |
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68 QsciLexerSQL.CommentLine, |
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69 QsciLexerSQL.CommentLineHash] |
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70 |
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71 def isStringStyle(self, style): |
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72 """ |
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73 Public method to check, if a style is a string style. |
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74 |
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75 @param style style to check (integer) |
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76 @return flag indicating a string style (boolean) |
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77 """ |
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78 return style in [QsciLexerSQL.DoubleQuotedString, |
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79 QsciLexerSQL.SingleQuotedString] |
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80 |
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81 def defaultKeywords(self, kwSet): |
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82 """ |
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83 Public method to get the default keywords. |
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84 |
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85 @param kwSet number of the keyword set (integer) |
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86 @return string giving the keywords (string) or None |
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87 """ |
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88 return QsciLexerSQL.keywords(self, kwSet) |
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89 |
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90 def maximumKeywordSet(self): |
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91 """ |
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92 Public method to get the maximum keyword set. |
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93 |
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94 @return maximum keyword set (integer) |
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95 """ |
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96 return 8 |