43 lines
1.1 KiB
C++
Executable file
43 lines
1.1 KiB
C++
Executable file
#ifndef PARSEUTIL_H
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#define PARSEUTIL_H
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#include <QString>
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#include <QList>
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enum TokenType {
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Number,
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Operator,
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};
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class Token {
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public:
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Token(QString value = "", QString type = "") {
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this->value = value;
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this->type = TokenType::Operator;
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if (type == "decimal" || type == "hex") {
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this->type = TokenType::Number;
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this->operatorPrecedence = -1;
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} else if (type == "operator") {
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this->operatorPrecedence = precedenceMap[value];
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}
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}
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static QMap<QString, int> precedenceMap;
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QString value;
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TokenType type;
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int operatorPrecedence; // only relevant for operator tokens
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};
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class ParseUtil
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{
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public:
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ParseUtil();
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void strip_comment(QString*);
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QList<QStringList>* parseAsm(QString);
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int evaluateDefine(QString, QMap<QString, int>*);
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private:
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QList<Token> tokenizeExpression(QString expression, QMap<QString, int>* knownIdentifiers);
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QList<Token> generatePostfix(QList<Token> tokens);
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int evaluatePostfix(QList<Token> postfix);
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};
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#endif // PARSEUTIL_H
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