assembler.c

/******************************************************************************

                            NAME - ELI BRACHA.
                            DATE - 2/3/2018
        This Program Functions As Assembler For A specific Assembly Language.
                            University Project.
*******************************************************************************/


#include <stdio.h>
#include <malloc.h>
#include <string.h>

#define MINIMUM_ARGUMENTS 1
#define STARTUP_ERROR "Error: No File Paths Specified As Arguments.\n"
#define SUCCESS_MESSAGE "Build: Success Building Files.\n"
#define ERRROS_MESSAGE "Build: Failed Building Files Errors Count - %d.\n"

void initialize();

void assemble(char *);

void check_labels();

_Bool validate_files(char *);

void start_assembler(char **);

void write_code_list(char *);

void write_data_list(char *);

void write_ext_list(char *);

void write_ent_list(char *);

int main(int argc, char *argv[]) {

    // Initializing All Known Limits For Commends (From Builder.c).
    initialize();
    // Deciding If A File Name Was Passed From The Commend Line.
    argc > MINIMUM_ARGUMENTS ? start_assembler(argv) : printf(STARTUP_ERROR);
    return 0;
}

// Variable To Share Errors And Decide If To Produce Files.
extern int ERRORS;

void start_assembler(char **files) {

    while (*++files) {
        if (validate_files(*files)) {
            assemble(*files);

            // Checking If No Error Found And Files Can Be Produced.
            if (ERRORS == 0) {
            	check_labels();
                char *code_data = (char *) malloc(sizeof(char) * strlen(*files));
                char *ext = (char *) malloc(sizeof(char) * strlen(*files));
                char *ent = (char *) malloc(sizeof(char) * strlen(*files));
                strcpy(code_data, *files);
                code_data[strlen(code_data) - 1] = 0;
                code_data[strlen(code_data) - 2] = 0;
                strcpy(ext, code_data);
                strcpy(ent, code_data);
                strcat(code_data, ".ob");
                write_code_list(code_data); // Creating The Obj File (Code & Data).
                write_data_list(code_data);
                strcat(ext, ".ext");
                write_ext_list(ext); // Creating The Ext File (extern).
                strcat(ent, ".ent");
                write_ent_list(ent);
                if(ERRORS == 0)
                    printf(SUCCESS_MESSAGE);  //Printing A Success Message.
            }else{
                printf(ERRROS_MESSAGE, ERRORS);
            }
        }
    }
}