eric7/QScintilla/Lexers/LexerJavaScript.py

branch
eric7
changeset 8312
800c432b34c8
parent 7923
91e843545d9a
child 8318
962bce857696
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/eric7/QScintilla/Lexers/LexerJavaScript.py	Sat May 15 18:45:04 2021 +0200
@@ -0,0 +1,103 @@
+# -*- coding: utf-8 -*-
+
+# Copyright (c) 2003 - 2021 Detlev Offenbach <detlev@die-offenbachs.de>
+#
+
+"""
+Module implementing a JavaScript lexer with some additional methods.
+"""
+
+from PyQt5.Qsci import QsciLexerJavaScript, QsciScintilla
+
+from .Lexer import Lexer
+import Preferences
+
+
+class LexerJavaScript(Lexer, QsciLexerJavaScript):
+    """
+    Subclass to implement some additional lexer dependant methods.
+    """
+    def __init__(self, parent=None):
+        """
+        Constructor
+        
+        @param parent parent widget of this lexer
+        """
+        QsciLexerJavaScript.__init__(self, parent)
+        Lexer.__init__(self)
+        
+        self.commentString = "//"
+        self.streamCommentString = {
+            'start': '/* ',
+            'end': ' */'
+        }
+        self.boxCommentString = {
+            'start': '/* ',
+            'middle': ' * ',
+            'end': ' */'
+        }
+        
+        self.keywordSetDescriptions = [
+            self.tr("Primary keywords and identifiers"),
+            self.tr("Secondary keywords and identifiers"),
+            self.tr("Documentation comment keywords"),
+            self.tr("Global classes and typedefs"),
+            self.tr("Preprocessor definitions"),
+            self.tr("Task marker and error marker keywords"),
+        ]
+    
+    def initProperties(self):
+        """
+        Public slot to initialize the properties.
+        """
+        self.setFoldComments(Preferences.getEditor("CppFoldComment"))
+        self.setFoldPreprocessor(Preferences.getEditor("CppFoldPreprocessor"))
+        self.setFoldAtElse(Preferences.getEditor("CppFoldAtElse"))
+        indentStyle = 0
+        if Preferences.getEditor("CppIndentOpeningBrace"):
+            indentStyle |= QsciScintilla.AiOpening
+        if Preferences.getEditor("CppIndentClosingBrace"):
+            indentStyle |= QsciScintilla.AiClosing
+        self.setAutoIndentStyle(indentStyle)
+        self.setFoldCompact(Preferences.getEditor("AllFoldCompact"))
+    
+    def isCommentStyle(self, style):
+        """
+        Public method to check, if a style is a comment style.
+        
+        @param style style to check (integer)
+        @return flag indicating a comment style (boolean)
+        """
+        return style in [QsciLexerJavaScript.Comment,
+                         QsciLexerJavaScript.CommentDoc,
+                         QsciLexerJavaScript.CommentLine,
+                         QsciLexerJavaScript.CommentLineDoc]
+    
+    def isStringStyle(self, style):
+        """
+        Public method to check, if a style is a string style.
+        
+        @param style style to check (integer)
+        @return flag indicating a string style (boolean)
+        """
+        return style in [QsciLexerJavaScript.DoubleQuotedString,
+                         QsciLexerJavaScript.SingleQuotedString,
+                         QsciLexerJavaScript.UnclosedString,
+                         QsciLexerJavaScript.VerbatimString]
+    
+    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 QsciLexerJavaScript.keywords(self, kwSet)
+    
+    def maximumKeywordSet(self):
+        """
+        Public method to get the maximum keyword set.
+        
+        @return maximum keyword set (integer)
+        """
+        return 4

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