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253 lines
7.5 KiB
C++
253 lines
7.5 KiB
C++
// This defines the interface to the QsciLexerCSS class.
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//
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// Copyright (c) 2023 Riverbank Computing Limited <info@riverbankcomputing.com>
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//
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// This file is part of QScintilla.
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//
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// This file may be used under the terms of the GNU General Public License
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// version 3.0 as published by the Free Software Foundation and appearing in
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// the file LICENSE included in the packaging of this file. Please review the
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// following information to ensure the GNU General Public License version 3.0
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// requirements will be met: http://www.gnu.org/copyleft/gpl.html.
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//
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// If you do not wish to use this file under the terms of the GPL version 3.0
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// then you may purchase a commercial license. For more information contact
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// info@riverbankcomputing.com.
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//
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// This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
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// WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
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#ifndef QSCILEXERCSS_H
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#define QSCILEXERCSS_H
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#include <QObject>
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#include <Qsci/qsciglobal.h>
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#include <Qsci/qscilexer.h>
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//! \brief The QsciLexerCSS class encapsulates the Scintilla CSS lexer.
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class QSCINTILLA_EXPORT QsciLexerCSS : public QsciLexer
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{
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Q_OBJECT
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public:
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//! This enum defines the meanings of the different styles used by the
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//! CSS lexer.
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enum {
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//! The default.
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Default = 0,
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//! A tag.
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Tag = 1,
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//! A class selector.
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ClassSelector = 2,
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//! A pseudo class. The list of pseudo classes is defined by keyword
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//! set 2.
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PseudoClass = 3,
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//! An unknown pseudo class.
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UnknownPseudoClass = 4,
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//! An operator.
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Operator = 5,
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//! A CSS1 property. The list of CSS1 properties is defined by keyword
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//! set 1.
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CSS1Property = 6,
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//! An unknown property.
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UnknownProperty = 7,
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//! A value.
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Value = 8,
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//! A comment.
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Comment = 9,
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//! An ID selector.
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IDSelector = 10,
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//! An important value.
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Important = 11,
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//! An @-rule.
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AtRule = 12,
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//! A double-quoted string.
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DoubleQuotedString = 13,
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//! A single-quoted string.
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SingleQuotedString = 14,
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//! A CSS2 property. The list of CSS2 properties is defined by keyword
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//! set 3.
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CSS2Property = 15,
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//! An attribute.
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Attribute = 16,
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//! A CSS3 property. The list of CSS3 properties is defined by keyword
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//! set 4.
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CSS3Property = 17,
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//! A pseudo element. The list of pseudo elements is defined by
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//! keyword set 5.
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PseudoElement = 18,
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//! An extended (browser specific) CSS property. The list of extended
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//! CSS properties is defined by keyword set 6.
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ExtendedCSSProperty = 19,
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//! An extended (browser specific) pseudo class. The list of extended
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//! pseudo classes is defined by keyword set 7.
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ExtendedPseudoClass = 20,
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//! An extended (browser specific) pseudo element. The list of
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//! extended pseudo elements is defined by keyword set 8.
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ExtendedPseudoElement = 21,
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//! A media rule.
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MediaRule = 22,
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//! A variable.
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Variable = 23,
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};
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//! Construct a QsciLexerCSS with parent \a parent. \a parent is typically
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//! the QsciScintilla instance.
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QsciLexerCSS(QObject *parent = 0);
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//! Destroys the QsciLexerCSS instance.
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virtual ~QsciLexerCSS();
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//! Returns the name of the language.
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const char *language() const;
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//! Returns the name of the lexer. Some lexers support a number of
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//! languages.
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const char *lexer() const;
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//! \internal Returns a space separated list of words or characters in
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//! a particular style that define the end of a block for
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//! auto-indentation. The styles is returned via \a style.
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const char *blockEnd(int *style = 0) const;
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//! \internal Returns a space separated list of words or characters in
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//! a particular style that define the start of a block for
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//! auto-indentation. The styles is returned via \a style.
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const char *blockStart(int *style = 0) const;
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//! Returns the string of characters that comprise a word.
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const char *wordCharacters() const;
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//! Returns the foreground colour of the text for style number \a style.
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QColor defaultColor(int style) const;
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//! Returns the font for style number \a style.
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QFont defaultFont(int style) const;
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//! Returns the set of keywords for the keyword set \a set recognised
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//! by the lexer as a space separated string.
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const char *keywords(int set) const;
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//! Returns the descriptive name for style number \a style. If the
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//! style is invalid for this language then an empty QString is returned.
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//! This is intended to be used in user preference dialogs.
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QString description(int style) const;
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//! Causes all properties to be refreshed by emitting the
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//! propertyChanged() signal as required.
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void refreshProperties();
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//! Returns true if multi-line comment blocks can be folded.
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//!
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//! \sa setFoldComments()
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bool foldComments() const;
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//! Returns true if trailing blank lines are included in a fold block.
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//!
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//! \sa setFoldCompact()
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bool foldCompact() const;
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//! If \a enabled is true then support for HSS is enabled. The default is
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//! false.
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//!
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//! \sa HSSLanguage()
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void setHSSLanguage(bool enabled);
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//! Returns true if support for HSS is enabled.
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//!
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//! \sa setHSSLanguage()
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bool HSSLanguage() const {return hss_language;}
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//! If \a enabled is true then support for Less CSS is enabled. The
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//! default is false.
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//!
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//! \sa LessLanguage()
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void setLessLanguage(bool enabled);
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//! Returns true if support for Less CSS is enabled.
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//!
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//! \sa setLessLanguage()
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bool LessLanguage() const {return less_language;}
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//! If \a enabled is true then support for Sassy CSS is enabled. The
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//! default is false.
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//!
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//! \sa SCSSLanguage()
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void setSCSSLanguage(bool enabled);
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//! Returns true if support for Sassy CSS is enabled.
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//!
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//! \sa setSCSSLanguage()
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bool SCSSLanguage() const {return scss_language;}
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public slots:
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//! If \a fold is true then multi-line comment blocks can be folded.
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//! The default is false.
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//!
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//! \sa foldComments()
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virtual void setFoldComments(bool fold);
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//! If \a fold is true then trailing blank lines are included in a fold
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//! block. The default is true.
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//!
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//! \sa foldCompact()
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virtual void setFoldCompact(bool fold);
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protected:
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//! The lexer's properties are read from the settings \a qs. \a prefix
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//! (which has a trailing '/') should be used as a prefix to the key of
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//! each setting. true is returned if there is no error.
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//!
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bool readProperties(QSettings &qs,const QString &prefix);
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//! The lexer's properties are written to the settings \a qs.
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//! \a prefix (which has a trailing '/') should be used as a prefix to
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//! the key of each setting. true is returned if there is no error.
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//!
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bool writeProperties(QSettings &qs,const QString &prefix) const;
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private:
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void setCommentProp();
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void setCompactProp();
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void setHSSProp();
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void setLessProp();
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void setSCSSProp();
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bool fold_comments;
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bool fold_compact;
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bool hss_language;
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bool less_language;
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bool scss_language;
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QsciLexerCSS(const QsciLexerCSS &);
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QsciLexerCSS &operator=(const QsciLexerCSS &);
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};
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#endif
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