Lexical analyzer (3. Main program file)

//////////////////////////////////////// //////////////////////////////////
// Fundamentals of Compiler
// Project: World Analysis
// Written by: kejie 03 computer science and techology 086
// Create time: 2006.4.5
// Modified: 2006.4.15
// File name: Main. cpp
// Note: this file is the main program, useing to analyze the source file
// Copyright University of Electronic Science and Technology of China, Zhongshan Institute.
//////////////////////////////////////// //////////////////////////////////

// # Include <iostream. h>
// # Include <fstream. h>
# Include "analysis. H"
# Include <stdio. h>

// File path
Char * charpath = "operatortable.txt ";

Extern char * keyworldpath;
Extern char * sourcepath;
Static int chosenum;

// Variable table, used to save the scanned Variables

// Constant table, used to save the scanned constant

Lex wordanalysis (sourcepath); // lexical analyzer class
Bstree operatortable (charpath, 0x0); // The operator starts encoding from 0x00
Bstree keytable (keyworldpath, 0x040); // The keyword starts encoding from 0x40.

// Program start interface (because it is too late to use MFC to create a program interface, you can only run it in DOS now!
Void interface ()
{
Cout <"University of Electronic Science and Technology of China, Zhongshan Institute" <Endl
<"Computer Engineering Department" <Endl
<"03 Computer Science and Technology" <Endl;
 
Cout <"Author: kejie" <Endl;
 
Cout <SETW (59) <"foundamenation of complieration: Word analysis" <Endl
<SETW (49) <"1. Show the source of read" <Endl
<SETW (51) <"2.run the analysis program" <Endl
<SETW (48) <"3. Print the keyword Tree" <Endl
<SETW (49) <"4. Print the operator Tree" <Endl
<SETW (30) <"5. Exit" <Endl
<"If your have any question about the program or want to learn more about me Please mail to me! "<Endl
<"My email address is: kejieleung@163.com" <Endl
<"Waiting for you! Thank you! "<Endl
<"Please chose an operation :";

}

Void choose (INT num)
{
// Assert (Num> = 1 & num <= 5 );
Switch (Num)
{
Case 1:
Cout <"follow is the Souce read from the outer Fiel source.txt." <Endl;
Wordanalysis. printsource ();
Break;
Case 2:
Cout <"follow is the result of the worl analysis :";
Wordanalysis. Analysis ();
Break;
Case 3:
Cout <"follow is the tree that the program code the Key worlds in the keyword. Text:" <Endl;
Keytable. printtree ();
Break;
Case 4:
Cout <"follow is the tress that the program code the operators int the operatortable.txt" <Endl;
Operatortable. printtree ();
Break;
Case 5:
Break;
Default:
Cout <"input eorror! ";
}

Cout <Endl;
}
Int main ()
{
While (chosenum! = 5)
{
System ("CLS ");
Interface ();
Cin> chosenum;

Choose (chosenum );
Cout <"press any key to continue! "<Endl;
Getchar ();

}

Cout <Endl;
 

Return 0;
}

// Program debugging record (created 4.7 update 4.13)

// 1. There is a problem with string recognition. For example, "X..." in the output should be full output without considering whether it is a keyword (OK)
// 2. the binary operator cannot be recognized (OK)

// 3. Encoding negative (OK)
// 4. The space cannot be correctly confirmed (OK)
// 5. An error occurred while releasing the binary tree (OK)
// 6. The variable is not initialized (the constructor cannot call it by itself) (OK)
// 7. A logical error occurred when determining whether the keyword is a common string (OK)
// 8. Buffer indicates that the bufpos value is abnormal (OK)

// 9. Incomplete Operators
// 10. The variable is repeated (it should be saved in the symbol table and indicated by a pointer)
// 11. Reading comments cannot be removed (OK)
// 12. The error message is not processed.
// 13. The constant table is not created