Initial Commit

2026-07-10 21:18:40 -07:00 · 2015-05-07 18:10:22 -07:00
commit 4c93b47b2a
8 changed files with 1149 additions and 0 deletions
@@ -0,0 +1,76 @@
+#ifndef CPREPROCESSOR_HPP
+#define CPREPROCESSOR_HPP
+
+#include <map>
+#include <string>
+#include <functional>
+#include "CLexer.hpp"
+#include "CLineTranslator.hpp"
+
+class CPreprocessor
+{
+public:
+    struct PragmaInstance
+    {
+        std::string name;
+        std::string text;
+        std::string currentFile;
+        unsigned int currentLine;
+        std::string rootFile;
+        std::string globalLine;
+    };
+
+    CPreprocessor();
+    typedef std::map<std::string, int> ArgSet;
+    struct DefineEntry
+    {
+        CLexer::TokenList tokens;
+        ArgSet arguments;
+    };
+
+    typedef std::map<std::string, DefineEntry> DefineTable;
+    typedef DefineTable::iterator DefineIterator;
+    typedef std::map<std::string, std::function<void(PragmaInstance)> > PragmaMap;
+    typedef PragmaMap::iterator PragmaIterator;
+
+    void define(const std::string& def);
+    void undefine(const std::string& def);
+    void registerPragma(const std::string& name, std::function<void(PragmaInstance)>  cb);
+
+    std::string finalizedSource();
+    int preprocessFile(const std::string& filename);
+    int preprocessCode(const std::string& filename, const std::string& code);
+private:
+    std::string _loadSource(const std::string& filename);
+    void printErrorMessage(const std::string& errMsg);
+    void printWarningMessage(const std::string& warnMesg);
+
+    void preprocessRecursive(const std::string& filename, const std::string& code, CLexer::TokenList& tokens, DefineTable& defineTable);
+
+    void callPragma(const std::string& name, const PragmaInstance& parms);
+    void _advanceList(CLexer::TokenList& tokens);
+    CLexer::TokenIterator _findToken(CLexer::TokenIterator begin, CLexer::TokenIterator end, CLexer::TokenType type);
+    CLexer::TokenIterator _parseStatement(CLexer::TokenIterator begin, CLexer::TokenIterator end, CLexer::TokenList& dest);
+    CLexer::TokenIterator _parseDefineArguments(CLexer::TokenIterator begin, CLexer::TokenIterator end, CLexer::TokenList& tokens, std::vector<CLexer::TokenList>& args);
+    CLexer::TokenIterator _expandDefine(CLexer::TokenIterator begin, CLexer::TokenIterator end, CLexer::TokenList& tokens, DefineTable& defineTable);
+    void _parseDefine(DefineTable& defineTable, CLexer::TokenList& tokens);
+    CLexer::TokenIterator _parseIfDef(CLexer::TokenIterator begin, CLexer::TokenIterator end);
+    void _parseIf(CLexer::TokenList& directive, std::string& nameOut);
+    void _parsePragma(CLexer::TokenList& args);
+    std::string _expandMessage(DefineTable& defineTable, CLexer::TokenList& args);
+    void _parseWarning(CLexer::TokenList& args, DefineTable& defineTable);
+    void _parseError(CLexer::TokenList& args, DefineTable& defineTable);
+
+    DefineTable      m_applicationDefined;
+    PragmaMap        m_registeredPragmas;
+    CLineTranslator  m_lineTranslator;
+    CLexer::TokenList m_tokens;
+
+    std::string  m_rootFile;
+    std::string  m_currentFile;
+    unsigned int m_currentLine;
+    unsigned int m_currentFileLines;
+    unsigned int m_errorCount;
+};
+
+#endif // CPREPROCESSOR_HPP