Library/ccalc-0.5.1/lexer.h

@@ -0,0 +1,79 @@
+/*
+    Universal lexical analiser by hq_software
+*/
+
+#ifndef __LEXER_HPP__
+#define __LEXER_HPP__
+
+#include "pack.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+typedef unsigned char uchar;
+
+typedef enum {
+    CH_LETTER = 0x01, CH_DIGIT = 0x02, CH_SEPARAT = 0x04,
+    CH_SYMBOL = 0x08, CH_QUOTE = 0x10,
+    CH_UNKNOWN= 0x7E, CH_FINAL = 0x7F
+} hqCharType;
+
+typedef enum {
+    TOK_ERROR, TOK_NONE, TOK_FINAL, TOK_INT, TOK_FLOAT, TOK_SYMBOL,
+    TOK_NAME, TOK_STRING
+} hqTokenType;
+
+#pragma pack(push,1)
+
+typedef struct {
+    char Sym[4];
+    char Len;
+    char Index;
+    char More;
+} SymbolRec;
+
+typedef struct {
+    // input params
+    const char *SS;
+    hqCharType *CharTypeTable;
+    SymbolRec **SymTable;
+    int		NoIntegers;
+    int		cssn;	// Comment Start Symbol Number. -1 if none
+    char       *ComEnd;	// End of comment
+    // output params
+    const char *Name;
+    size_t		NameLen;
+    double	ExtValue;
+    int		IntValue;
+    hqTokenType PrevTokenType;
+    hqCharType	CharType;
+} hqLexer;
+
+#pragma pack(pop)
+
+/* Main "API" */
+
+int Lexer_SetParseString( hqLexer *lexer, const char *str );
+hqTokenType Lexer_GetNextToken( hqLexer *lexer );
+const char* Lexer_GetCurrentPos( hqLexer *lexer );
+
+/* Misc */
+
+void UpcaseWin1251Str( char *Str );
+void InitCharTypeTable( hqCharType *CharTypeTable, int CharTypes );
+
+void TypeTableAddChars( hqCharType *CharTypeTable, char *Symbols,
+			hqCharType CharType );
+
+void PrepareSymTable( SymbolRec **SymTable, char *symbols );
+
+//int IsEngWin1251RusName( char *Str );
+
+extern char const Win1251UpcaseTbl[];
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* __LEXER_HPP__ */