vb.lua (2396B)
- -- Copyright 2006-2024 Mitchell. See LICENSE.
- -- VisualBasic LPeg lexer.
- local lexer = lexer
- local P, S = lpeg.P, lpeg.S
- local lex = lexer.new(..., {case_insensitive_fold_points = true})
- -- Keywords.
- lex:add_rule('keyword', lex:tag(lexer.KEYWORD, lex:word_match(lexer.KEYWORD, true)))
- -- Types.
- lex:add_rule('type', lex:tag(lexer.TYPE, lex:word_match(lexer.TYPE, true)))
- -- Comments.
- lex:add_rule('comment', lex:tag(lexer.COMMENT, lexer.to_eol("'" + lexer.word_match('rem', true))))
- -- Identifiers.
- lex:add_rule('identifier', lex:tag(lexer.IDENTIFIER, lexer.word))
- -- Strings.
- lex:add_rule('string', lex:tag(lexer.STRING, lexer.range('"', true, false)))
- -- Numbers.
- lex:add_rule('number', lex:tag(lexer.NUMBER, lexer.number * S('LlUuFf')^-2))
- -- Operators.
- lex:add_rule('operator', lex:tag(lexer.OPERATOR, S('=><+-*^&:.,_()')))
- -- Fold points.
- lex:add_fold_point(lexer.KEYWORD, 'If', 'End If')
- lex:add_fold_point(lexer.KEYWORD, 'Select', 'End Select')
- lex:add_fold_point(lexer.KEYWORD, 'For', 'Next')
- lex:add_fold_point(lexer.KEYWORD, 'While', 'End While')
- lex:add_fold_point(lexer.KEYWORD, 'While', 'Wend')
- lex:add_fold_point(lexer.KEYWORD, 'Do', 'Loop')
- lex:add_fold_point(lexer.KEYWORD, 'With', 'End With')
- lex:add_fold_point(lexer.KEYWORD, 'Sub', 'End Sub')
- lex:add_fold_point(lexer.KEYWORD, 'Function', 'End Function')
- lex:add_fold_point(lexer.KEYWORD, 'Property', 'End Property')
- lex:add_fold_point(lexer.KEYWORD, 'Module', 'End Module')
- lex:add_fold_point(lexer.KEYWORD, 'Class', 'End Class')
- lex:add_fold_point(lexer.KEYWORD, 'Try', 'End Try')
- -- Word lists.
- lex:set_word_list(lexer.KEYWORD, {
- -- Control.
- 'If', 'Then', 'Else', 'ElseIf', 'While', 'Wend', 'For', 'To', 'Each', 'In', 'Step', 'Case',
- 'Select', 'Return', 'Continue', 'Do', 'Until', 'Loop', 'Next', 'With', 'Exit',
- -- Operators.
- 'Mod', 'And', 'Not', 'Or', 'Xor', 'Is',
- -- Storage types.
- 'Call', 'Class', 'Const', 'Dim', 'ReDim', 'Preserve', 'Function', 'Sub', 'Property', 'End', 'Set',
- 'Let', 'Get', 'New', 'Randomize', 'Option', 'Explicit', 'On', 'Error', 'Execute', 'Module',
- -- Storage modifiers.
- 'Private', 'Public', 'Default',
- -- Constants.
- 'Empty', 'False', 'Nothing', 'Null', 'True'
- })
- lex:set_word_list(lexer.TYPE, {
- 'Boolean', 'Byte', 'Char', 'Date', 'Decimal', 'Double', 'Long', 'Object', 'Short', 'Single',
- 'String'
- })
- lexer.property['scintillua.comment'] = "'"
- return lex