io_library.md

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Input output library

Provides standard input and output functions.

Import

The following statement may be used to import the input output library:

import io;

Functions

Name	Description
open_file	Open an existing file for input and output. Optional binary flag.
close_file	Close an open file
write_string	Write a string to a file
get_line	Get a line from a file
is_open	Check if a file is open
is_end	Check if read file contents to end
is_file_exist	Check if file exists
create_file	Create a new file
get_file_size	Return file size
seek_file_pointer	Seek binary file pointer to byte position
read_byte	Read a byte from a file
write_byte	Write a byte to a file
remove_file	Remove a file
rename_file	Rename a file
tell_file_pointer	Return the byte position of the binary file pointer
create_directory	Create a directory

Examples

open_file

call open_file : "create_file_test.txt";

# Open binary file
call open_file : "test.bin" 1;

close_file

call close_file : "create_file_test.txt";

write_string

call open_file : "create_file_test.txt";
call write_string : "create_file_test.txt", "Hello, world!";
call close_file : "create_file_test.txt";

get_line

call open_file : "create_file_test.txt";
string getLineResult;
call get_line : "create_file_test.txt" -> getLineResult;
call close_file : "create_file_test.txt";

is_open

int isFileOpen;
call is_open : "create_file_test.txt" -> isFileOpen;

is_end

call open_file : "create_file_test.txt";
isFileAtEnd = 0;
call is_end : "create_file_test.txt" -> isFileAtEnd;
call close_file : "create_file_test.txt";

is_file_exist

int musicManagerExist;
call is_file_exist : "musicmanagerinstaller.exe" -> musicManagerExist;

create_file

call create_file : "create_file_test.txt";

get_file_size

int musicManagerSize;
call get_file_size : "musicmanagerinstaller.exe" -> musicManagerSize;

seek_file_pointer

const int OPEN_AS_BINARY = 1;
call open_file : "create_file_test.txt", OPEN_AS_BINARY;
int filePointer = 1;
call seek_file_pointer : "create_file_test.txt", filePointer;
call close_file : "create_file_test.txt";

read_byte

const int OPEN_AS_BINARY = 1;
call open_file : "create_file_test.txt", OPEN_AS_BINARY;
int byte;
call read_byte : "create_file_test.txt" -> byte;
call close_file : "create_file_test.txt";

write_byte

const int OPEN_AS_BINARY = 1;
call open_file : "create_file_test.txt", OPEN_AS_BINARY;
call write_byte : "create_file_test.txt", 63;
call close_file : "create_file_test.txt";

remove_file

call remove_file : "create_file_test.txt";

rename_file

call rename_file : "create_file_test.txt", "create_file_test_2.txt";

tell_file_pointer

const int OPEN_AS_BINARY = 1;
call open_file : "create_file_test.txt", OPEN_AS_BINARY;
int filePointer = 0;
call tell_file_pointer : "create_file_test.txt" -> filePointer;
call close_file : "create_file_test.txt";

create_directory

string newDirectory = "data_dir";
int directoryResult;
call create_directory : newDirectory -> directoryResult;