//File compiler.cpp

#include	<iostream.h>
#include	<conio.h>
#include	<string.h>
#include	<stdlib.h>
#include	"compiler.h"
#include	"pmglobs.h"
#include	"scanner.h"
#include	"parser.h'
#include	"codegen.h"

void compiler::prologue() {
   clrscr();
	cout<<"\n	The Proem Compiler, Version 2.3, March 1995";
	cout<<"\n	Copyright (c) 1986, 1989, 1990, 1992, 1995";
	cout<<" by	Stuart B. Greenfield\n\n";
}

char* compiler::getprogramname() {
   cout<< "\nEnter the Proem program to be compiled,";
   cout<< "\n[<drive>\":\"<path>]<filename>\".PM\",";
   cout << "\n            (e.g., A:\\SUBDIR\\SAMPLE.PM): ";
   cin >> progname;
   char* ext=strpbrk(progname,".");
   if (strcmpi(ext,".pm")!=NULL) {
      cout<<"ILLEGAL SOURCE CODE FILE EXTENSION!  MUST BE \".PM\"";
      exit(1);
   }
   return progname;
}

boolean compiler::seefilesquery() {
   cout<<"\nSee all compiler generated files, (y/n):
   char ch=getch();
   cout<<ch;
   if (ch == 'Y' || ch == 'y')
      return TRUE;
   else
      return FALSE;
}

compiler::compiler() {
   prologue();
   scan.distributeprogname(getprogramnameo;
   scan.getprogram() ;
   boolean seefiles=seefilesquery();
   if (seefiles) {
      scan.seeprogram();
      cout<<"\n\nStart of lexical analysis...";
   }
   scan.program();
   scan.releasememory();
   if (seefiles) {
      cout<<"\nEnd of lexical analysis!";
      scan.seetokens();
      cout<<"\n\nStart of syntax and semantic analysis...";
      cout<<"\n";
   }
   parse.distributeprogname(progname);
   parse.tokensequence();
   if (seefiles) {
      cout<<"\nEnd of syntax and semantic analysis!";
      parse.seequads();
      cout<<"\n\nStart of gS92 code generation...";
      cout<<"\n";
   }
   codegen.distributeprogname(progname);
   codegen.generate();
   if (seefiles) {
      cout<<"\nEnd of gS92 code generation!";
      codegen.seeinsts();
   }
   cout<<"\n\nTermination of compilation\n";
}

//B-2, 3