#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#define TRUE 1
#define FALSE 0
#define LINE_LENGTH 100 // 파일한줄의 최대치설정


struct SYM_REFERENCE {
        int symref_position; // 참조 위치변수
        struct SYM_REFERENCE *sp_nsymref;
};

struct SYM_TABLE {
        int symbolLineNumber; // SYMBOL 의 위치의 행
        char c_sbname[8]; // 현재SYMBOL의위치
        int confirmAdded; // SYM_TABLE이 addsymref() 함수에서추가되었는지 boolean으로 확인
        struct SYM_REFERENCE *sp_fsymref; // first referencelist - current SYMBOL
        struct SYM_REFERENCE *sp_lsymref; // end referencelist - current SYMBOL
        struct SYM_TABLE *sp_nsymbol; // next sym_table address
};


struct SYM_TABLE *sp_fsymbol;

int addsymbol(char *cp_symname, struct SYM_TABLE *sp_fsymtab, int i_crow);
int addsymref(char *cp_symname, struct SYM_TABLE *sp_fsymtab, int i_crow);
void symbol_intlz(struct SYM_TABLE *sp_isymtab);
void symref_intlz(struct SYM_REFERENCE *sp_isymtab);
struct SYM_TABLE *f_operand_rm(struct SYM_TABLE *sp_fsymtab);

int addsymref(char *cp_symname, struct SYM_TABLE *sp_fsymtab, int i_crow)
{
        struct SYM_TABLE *sp_csymtab = sp_fsymtab; // 현재SYM_TABLE의주소값
        do
        {
                if(strcmp(sp_csymtab->c_sbname,cp_symname) == FALSE)
                {
                        if(sp_csymtab->sp_fsymref != NULL) // 이미레퍼런스된SYM_REFERENCE 테이블이있을때
                        {
                                sp_csymtab->sp_lsymref->sp_nsymref = (struct SYM_REFERENCE *) malloc(sizeof(struct SYM_REFERENCE));
                                sp_csymtab->sp_lsymref = sp_csymtab->sp_lsymref->sp_nsymref;
                                symref_intlz(sp_csymtab->sp_lsymref);
                                sp_csymtab->sp_lsymref->symref_position = i_crow;
                                break;
                        }
                        else // 이미레퍼런스된SYMREF 테이블이없을때
                        {
                                sp_csymtab->sp_fsymref = (struct SYM_REFERENCE *) malloc(sizeof(struct SYM_REFERENCE));
                                sp_csymtab->sp_lsymref = sp_csymtab->sp_fsymref;
                                symref_intlz(sp_csymtab->sp_lsymref);
                                sp_csymtab->sp_lsymref->symref_position = i_crow;
                                break;
                        }
                }
                else if(sp_csymtab->sp_nsymbol == NULL) // 마지막까지SYM_TABLE을찾았으나OPEREND 참조와맞는SYM_TABLE이없을때
                {
                        sp_csymtab->sp_nsymbol = (struct SYM_TABLE *) malloc(sizeof(struct SYM_TABLE));
                        sp_csymtab = sp_csymtab->sp_nsymbol;
                        symbol_intlz(sp_csymtab); // 구조체초기화
                        strcpy(sp_csymtab->c_sbname , cp_symname);
                        sp_csymtab->confirmAdded = TRUE;

                        sp_csymtab->sp_fsymref = (struct SYM_REFERENCE *) malloc(sizeof(struct SYM_REFERENCE));
                        sp_csymtab->sp_lsymref = sp_csymtab->sp_fsymref;
                        symref_intlz(sp_csymtab->sp_lsymref);
                        sp_csymtab->sp_lsymref->symref_position = i_crow;
                        break;
                }
                else    sp_csymtab = sp_csymtab->sp_nsymbol;
        }while(TRUE); // SYM_TABLE의마지막까지같은SYMBOL을찾는다.

        return 0;
}