- enhancement: Syntaxer for lua.

NEWS.md

@@ -26,6 +26,7 @@ Red Panda C++ Version 2.12
   - enhancement: New "embed assembly" template.
   - enhancement: New "Hello GAS" and "GAS and C" templates for linux and win64.
   - fix: Wrong selection position after delete in column mode.
+  - enhancement: Syntaxer for lua.
 
 Red Panda C++ Version 2.11
 

RedPandaIDE/editor.cpp

@@ -942,6 +942,14 @@ void Editor::keyPressEvent(QKeyEvent *event)
                     handled=true;
                     return;
                 }
+            } else if (syntaxer() && syntaxer()->language()==QSynedit::ProgrammingLanguage::LUA) {
+                if (ch=='.') {
+                    mLastIdCharPressed++;
+                    processCommand(QSynedit::EditCommand::Char,ch,nullptr);
+                    showCompletion("",false,CodeCompletionType::KeywordsOnly);
+                    handled=true;
+                    return;
+                }
             } else if (syntaxer() && syntaxer()->language()==QSynedit::ProgrammingLanguage::ATTAssembly) {
                 if ((mLastIdCharPressed==0) && (ch=='.')) {
                     mLastIdCharPressed++;
@@ -3232,8 +3240,11 @@ void Editor::showCompletion(const QString& preWord,bool autoComplete, CodeComple
                    (attr->tokenType() == QSynedit::TokenType::String) &&
                    (attr->tokenType() != QSynedit::TokenType::Character)) {
             return;
-        } else if (type==CodeCompletionType::KeywordsOnly && syntaxer() && syntaxer()->language()==QSynedit::ProgrammingLanguage::ATTAssembly) {
+        } else if (type==CodeCompletionType::KeywordsOnly && syntaxer() ) {
+            if (syntaxer()->language()==QSynedit::ProgrammingLanguage::ATTAssembly)
                 word = getWordAtPosition(this,caretXY(),pBeginPos,pEndPos, WordPurpose::wpATTASMKeywords);
+            else
+                word = getWordAtPosition(this,caretXY(),pBeginPos,pEndPos, WordPurpose::wpKeywords);
         } else if (
                    (attr->tokenType() != QSynedit::TokenType::Operator) &&
                    (attr->tokenType() != QSynedit::TokenType::Space) &&
@@ -3295,8 +3306,16 @@ void Editor::showCompletion(const QString& preWord,bool autoComplete, CodeComple
                     keywords = QSynedit::ASMSyntaxer::ATTRegisters;
                 else
                     keywords = QSynedit::ASMSyntaxer::Instructions;
+            } else {
+                int pos = word.lastIndexOf(".");
+                if (pos>=0) {
+                    QString scopeWord=word.left(pos);
+                    word = word.mid(pos+1);
+                    QMap<QString, QSet<QString> > scopedKeywords = syntaxer()->scopedKeywords();
+                    keywords = scopedKeywords.value(scopeWord, QSet<QString>());
                 } else
                     keywords = syntaxer()->keywords();
+            }
         } else {
             if (mUseCppSyntax) {
                 foreach (const QString& keyword, CppKeywords.keys()) {
@@ -4462,6 +4481,17 @@ QString getWordAtPosition(QSynedit::QSynEdit *editor, const QSynedit::BufferCoor
         }
     }
 
+    if (purpose == Editor::WordPurpose::wpKeywords) {
+        while ((wordBegin >= 0) && (wordBegin < len)) {
+           if (editor->isIdentChar(s[wordBegin])) {
+               wordBegin--;
+           } else if (s[wordBegin] == '.') {
+               wordBegin--;
+           } else
+               break;
+        }
+    }
+
     // Copy backward until #
     if (purpose == Editor::WordPurpose::wpDirective) {
         while ((wordBegin >= 0) && (wordBegin < len)) {

RedPandaIDE/editor.h

@@ -97,6 +97,7 @@ public:
         wpJavadoc, //javadoc
         wpInformation, // walk backwards over words, array, functions, parents, forwards over words
         wpATTASMKeywords,
+        wpKeywords
     };
 
     enum class TipType {

RedPandaIDE/mainwindow.cpp

@@ -208,7 +208,6 @@ MainWindow::MainWindow(QWidget *parent)
                              e.reason());
     }
 
-
 //    ui->actionIndent->setShortcut(Qt::Key_Tab);
 //    ui->actionUnIndent->setShortcut(Qt::Key_Tab | Qt::ShiftModifier);
 
@@ -9461,4 +9460,3 @@ void MainWindow::on_actionGNU_Assembler_Manual_triggered()
 {
     QDesktopServices::openUrl(QUrl("https://sourceware.org/binutils/docs/as/index.html"));
 }
-

RedPandaIDE/syntaxermanager.cpp

@@ -21,6 +21,7 @@
 #include "qsynedit/syntaxer/cpp.h"
 #include "qsynedit/syntaxer/asm.h"
 #include "qsynedit/syntaxer/glsl.h"
+#include "qsynedit/syntaxer/lua.h"
 #include "qsynedit/syntaxer/makefile.h"
 
 #include "qsynedit/constants.h"
@@ -46,6 +47,8 @@ QSynedit::PSyntaxer SyntaxerManager::getSyntaxer(QSynedit::ProgrammingLanguage l
         return std::make_shared<QSynedit::MakefileSyntaxer>();
     case QSynedit::ProgrammingLanguage::GLSL:
         return std::make_shared<QSynedit::GLSLSyntaxer>();
+    case QSynedit::ProgrammingLanguage::LUA:
+        return std::make_shared<QSynedit::LuaSyntaxer>();
     default:
         return QSynedit::PSyntaxer();
     }
@@ -68,6 +71,8 @@ QSynedit::PSyntaxer SyntaxerManager::getSyntaxer(const QString &filename)
         return getSyntaxer(QSynedit::ProgrammingLanguage::Assembly);
     } else if (suffix == "s" || suffix == "S") {
         return getSyntaxer(QSynedit::ProgrammingLanguage::ATTAssembly);
+    } else if (suffix == "lua") {
+        return getSyntaxer(QSynedit::ProgrammingLanguage::LUA);
     } else if (basename.compare("makefile", Qt::CaseInsensitive)==0) {
         return getSyntaxer(QSynedit::ProgrammingLanguage::Makefile);
     } else if (suffix.isEmpty()) {

RedPandaIDE/systemconsts.cpp

@@ -37,6 +37,7 @@ SystemConsts::SystemConsts(): mDefaultFileFilters()
     addDefaultFileFilter(QObject::tr("Header files"),"*.h *.hh *.hpp");
     addDefaultFileFilter(QObject::tr("GAS files"),"*.s *.S");
     addDefaultFileFilter(QObject::tr("ASM files"),"*.asm");
+    addDefaultFileFilter(QObject::tr("Lua files"),"*.lua");
 
     addFileFilter(mIconFileFilters, QObject::tr("Icon files"), "*.ico");
 

libs/qsynedit/qsynedit.pro

@@ -38,6 +38,7 @@ SOURCES += qsynedit/codefolding.cpp \
     qsynedit/syntaxer/cpp.cpp \
     qsynedit/syntaxer/customhighlighterv1.cpp \
     qsynedit/syntaxer/glsl.cpp \
+    qsynedit/syntaxer/lua.cpp \
     qsynedit/types.cpp \
     qsynedit/syntaxer/makefile.cpp \
     qsynedit/syntaxer/syntaxer.cpp
@@ -63,6 +64,7 @@ HEADERS += \
     qsynedit/syntaxer/cpp.h \
     qsynedit/syntaxer/customhighlighterv1.h \
     qsynedit/syntaxer/glsl.h \
+    qsynedit/syntaxer/lua.h \
     qsynedit/syntaxer/makefile.h \
     qsynedit/syntaxer/syntaxer.h
 

libs/qsynedit/qsynedit/syntaxer/asm.cpp

@@ -260,7 +260,10 @@ bool ASMSyntaxer::isATT() const
 
 void ASMSyntaxer::setATT(bool newATT)
 {
+    if (mATT!=newATT) {
         mATT = newATT;
+        mKeywordsCache.clear();
+    }
 }
 
 void ASMSyntaxer::CommentProc()
@@ -612,17 +615,19 @@ void ASMSyntaxer::resetState()
     mHasTrailingSpaces = false;
 }
 
-QSet<QString> ASMSyntaxer::keywords() const
+QSet<QString> ASMSyntaxer::keywords()
 {
-    QSet<QString> result=Instructions;
+    if (mKeywordsCache.isEmpty()) {
+        mKeywordsCache=Instructions;
         if (!isATT()) {
-        result.unite(Directives);
+            mKeywordsCache.unite(Directives);
-        result.unite(Registers);
+            mKeywordsCache.unite(Registers);
         } else {
-        result.unite(ATTDirectives);
+            mKeywordsCache.unite(ATTDirectives);
-        result.unite(ATTRegisters);
+            mKeywordsCache.unite(ATTRegisters);
         }
-    return result;
+    }
+    return mKeywordsCache;
 }
 
 const PTokenAttribute &ASMSyntaxer::directiveAttribute() const

libs/qsynedit/qsynedit/syntaxer/asm.h

@@ -73,6 +73,7 @@ private:
     PTokenAttribute mRegisterAttribute;
     PTokenAttribute mLabelAttribute;
     bool mATT;
+    QSet<QString> mKeywordsCache;
 
 private:
     void CommentProc();
@@ -114,7 +115,7 @@ public:
 
 
 public:
-    QSet<QString> keywords() const override;
+    QSet<QString> keywords() override;
 
     bool isATT() const;
     void setATT(bool newATT);

libs/qsynedit/qsynedit/syntaxer/cpp.cpp

@@ -1651,7 +1651,7 @@ bool CppSyntaxer::isIdentChar(const QChar &ch) const
     return ch=='_' || ch.isDigit() || ch.isLetter();
 }
 
-QSet<QString> CppSyntaxer::keywords() const
+QSet<QString> CppSyntaxer::keywords()
 {
     QSet<QString> set=Keywords;
     set.unite(mCustomTypeKeywords);

libs/qsynedit/qsynedit/syntaxer/cpp.h

@@ -197,7 +197,7 @@ public:
 
     // SynHighlighter interface
 public:
-    QSet<QString> keywords() const override;
+    QSet<QString> keywords() override;
 
     // SynHighlighter interface
 public:

libs/qsynedit/qsynedit/syntaxer/glsl.cpp

@@ -1439,7 +1439,7 @@ bool GLSLSyntaxer::isIdentChar(const QChar &ch) const
     return ch=='_' || (ch>='a' && ch<='z') || (ch>='A' && ch<='Z') || (ch>='0' && ch<='9');
 }
 
-QSet<QString> GLSLSyntaxer::keywords() const
+QSet<QString> GLSLSyntaxer::keywords()
 {
     return Keywords;
 }

libs/qsynedit/qsynedit/syntaxer/glsl.h

@@ -191,7 +191,7 @@ public:
 
     // SynHighlighter interface
 public:
-    QSet<QString> keywords() const override;
+    QSet<QString> keywords() override;
 
     // Highlighter interface
 public:

libs/qsynedit/qsynedit/syntaxer/lua.h

@@ -0,0 +1,184 @@
+/*
+ * Copyright (C) 2020-2022 Roy Qu (royqh1979@gmail.com)
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+#ifndef QSYNEDIT_LUA_SYNTAXER_H
+#define QSYNEDIT_LUA_SYNTAXER_H
+#include "syntaxer.h"
+#include <QSet>
+#include <QMap>
+
+namespace QSynedit {
+
+class LuaSyntaxer: public Syntaxer
+{
+    enum class TokenId {
+        Comment,
+        Identifier,
+        Key,
+        Null,
+        Number,
+        Space,
+        String,
+        StringEscapeSeq,
+        Symbol,
+        Unknown,
+        Float,
+        Hex,
+        HexFloat
+    };
+
+    enum RangeState {
+        rsUnknown,
+        rsComment,
+        rsLongComment,
+        rsString,
+        rsMultiLineDirective,
+        rsStringEscapeSeq,
+        rsSpace,
+        rsRawStringNotEscaping,
+        rsRawStringEnd,
+
+        rsLongString /* long string must be placed at end to record levels */
+    };
+
+public:
+    explicit LuaSyntaxer();
+    LuaSyntaxer(const LuaSyntaxer&)=delete;
+    LuaSyntaxer operator=(const LuaSyntaxer&)=delete;
+
+    const PTokenAttribute &invalidAttribute() const;
+
+    const PTokenAttribute &numberAttribute() const;
+
+    const PTokenAttribute &floatAttribute() const;
+
+    const PTokenAttribute &hexAttribute() const;
+
+    const PTokenAttribute &stringEscapeSequenceAttribute() const;
+
+    const PTokenAttribute &charAttribute() const;
+
+    static const QSet<QString> Keywords;
+
+    static const QSet<QString> LibFunctions;
+
+    static const QMap<QString,QSet<QString>> LibTables;
+
+    TokenId getTokenId();
+private:
+    void braceCloseProc();
+    void braceOpenProc();
+    void colonProc();
+    void commentProc();
+    void equalProc();
+    void greaterProc();
+    void identProc();
+    void longCommentProc();
+    void lowerProc();
+    void minusProc();
+    void nullProc();
+    void pointProc();
+    void processChar();
+    void roundCloseProc();
+    void roundOpenProc();
+    void slashProc();
+    void stringProc();
+    void tildeProc();
+
+    void numberProc();
+    void spaceProc();
+    void squareCloseProc();
+    void squareOpenProc();
+//    void stringEndProc();
+    void stringEscapeSeqProc();
+    void unknownProc();
+
+    void popIndents(IndentType indentType);
+    void pushIndents(IndentType indentType, int line=-1);
+
+private:
+    bool mAsmStart;
+    SyntaxState mRange;
+//    SynRangeState mSpaceRange;
+    QString mLine;
+    int mLineSize;
+    int mRun;
+    int mStringLen;
+    int mToIdent;
+    int mTokenPos;
+    TokenId mTokenId;
+    int mLineNumber;
+    int mLeftBraces;
+    int mRightBraces;
+
+    QSet<QString> mCustomTypeKeywords;
+    QSet<QString> mKeywordsCache;
+
+    PTokenAttribute mInvalidAttribute;
+    PTokenAttribute mNumberAttribute;
+    PTokenAttribute mFloatAttribute;
+    PTokenAttribute mHexAttribute;
+    PTokenAttribute mStringEscapeSequenceAttribute;
+    PTokenAttribute mCharAttribute;
+
+    // SynHighligterBase interface
+public:
+    bool getTokenFinished() const override;
+    bool isLastLineCommentNotFinished(int state) const override;
+    bool isLastLineStringNotFinished(int state) const override;
+    bool eol() const override;
+    QString getToken() const override;
+    const PTokenAttribute &getTokenAttribute() const override;
+    int getTokenPos() override;
+    void next() override;
+    void setLine(const QString &newLine, int lineNumber) override;
+    bool isKeyword(const QString &word) override;
+    void setState(const SyntaxState& rangeState) override;
+    void resetState() override;
+
+    QString languageName() override;
+    ProgrammingLanguage language() override;
+
+    // SynHighlighter interface
+public:
+    SyntaxState getState() const override;
+
+    // SynHighlighter interface
+public:
+    bool isIdentChar(const QChar &ch) const override;
+
+    // SynHighlighter interface
+public:
+    QSet<QString> keywords() override;
+
+    // SynHighlighter interface
+public:
+    QString foldString(QString startLine) override;
+    const QSet<QString> &customTypeKeywords() const;
+    void setCustomTypeKeywords(const QSet<QString> &newCustomTypeKeywords);
+
+    // Highlighter interface
+public:
+    bool supportBraceLevel() override;
+
+    // Syntaxer interface
+public:
+    QMap<QString, QSet<QString> > scopedKeywords() override;
+};
+
+}
+
+#endif // SYNEDITCPPHIGHLIGHTER_H

libs/qsynedit/qsynedit/syntaxer/makefile.cpp

@@ -686,7 +686,7 @@ void MakefileSyntaxer::resetState()
     mHasTrailingSpaces = false;
 }
 
-QSet<QString> MakefileSyntaxer::keywords() const
+QSet<QString> MakefileSyntaxer::keywords()
 {
     return Directives;
 }

libs/qsynedit/qsynedit/syntaxer/makefile.h

@@ -154,7 +154,7 @@ public:
 
     bool isIdentChar(const QChar& ch) const override;
 public:
-    QSet<QString> keywords() const override;
+    QSet<QString> keywords() override;
 
 };
 

libs/qsynedit/qsynedit/syntaxer/syntaxer.cpp

@@ -93,11 +93,16 @@ void Syntaxer::nextToEol()
         next();
 }
 
-QSet<QString> Syntaxer::keywords() const
+QSet<QString> Syntaxer::keywords()
 {
     return QSet<QString>();
 }
 
+QMap<QString, QSet<QString> > Syntaxer::scopedKeywords()
+{
+    return QMap<QString, QSet<QString> >();
+}
+
 QString Syntaxer::foldString(QString /*startLine*/)
 {
     return " ... }";

libs/qsynedit/qsynedit/syntaxer/syntaxer.h

@@ -99,6 +99,7 @@ enum class ProgrammingLanguage {
     CPP,
     GLSL,
     Makefile,
+    LUA,
     Custom
 };
 
@@ -169,7 +170,8 @@ public:
     virtual void setState(const SyntaxState& rangeState) = 0;
     virtual void setLine(const QString& newLine, int lineNumber) = 0;
     virtual void resetState() = 0;
-    virtual QSet<QString> keywords() const;
+    virtual QSet<QString> keywords();
+    virtual QMap<QString,QSet<QString>> scopedKeywords();
 
     virtual QString languageName() = 0;
     virtual ProgrammingLanguage language() = 0;