Hi guys

I'd like to know how to get an input from the user to be stored in a .txt file using import std.file and is it possible to directly write in a .txt file without using a variable to store the user input?

Thanks for the answer in advance my mind is kinda jumbled about this since im new to this language.

On Sunday, 7 May 2017 at 13:57:47 UTC, JV wrote:
> Hi guys
>
> I'd like to know how to get an input from the user to be stored in a .txt file using import std.file and is it possible to directly write in a .txt file without using a variable to store the user input?
>
> Thanks for the answer in advance my mind is kinda jumbled about this since im new to this language.

First of all see here:
https://dlang.org/phobos/std_stdio.html#.File

also:

import std.stdio; // for File

void main(){
	
	// an output file with name file.txt
	// w for writing
	auto ofs = File( "file.txt", "w" );

        // output file stream:
	ofs.write( stdin.readln() ); // get a line from console
	ofs.close();
}


cat file.txt:
This is the first line.


and for std.file:
https://dlang.org/phobos/std_file.html

On Sunday, 7 May 2017 at 13:57:47 UTC, JV wrote:
> Hi guys
>
> I'd like to know how to get an input from the user to be stored in a .txt file using import std.file and is it possible to directly write in a .txt file without using a variable to store the user input?
>
> Thanks for the answer in advance my mind is kinda jumbled about this since im new to this language.

http://nomad.so/2015/09/working-with-files-in-the-d-programming-language/

On Sunday, 7 May 2017 at 15:16:58 UTC, k-five wrote:
> On Sunday, 7 May 2017 at 13:57:47 UTC, JV wrote:
>> Hi guys
>>
>> I'd like to know how to get an input from the user to be stored in a .txt file using import std.file and is it possible to directly write in a .txt file without using a variable to store the user input?
>>
>> Thanks for the answer in advance my mind is kinda jumbled about this since im new to this language.
>
> First of all see here:
> https://dlang.org/phobos/std_stdio.html#.File
>
> also:
>
> import std.stdio; // for File
>
> void main(){
> 	
> 	// an output file with name file.txt
> 	// w for writing
> 	auto ofs = File( "file.txt", "w" );
>
>         // output file stream:
> 	ofs.write( stdin.readln() ); // get a line from console
> 	ofs.close();
> }
>
>
> cat file.txt:
> This is the first line.
>
>
> and for std.file:
> https://dlang.org/phobos/std_file.html



I'm kinda getting it but how do i write the stored user input(string) varaible into a .txt??im getting confused since D has so many read and write

 ->sample below
        string num;
        auto attendance= File("studAttendance.txt","a+");

        writeln("Add Student Attendance");
        readf("%s ",&num);//im not sure if this is correct but assuming it works
                          //how do i write what is stored in num in the studAttendance.txt
                          //file??

        attendance.close();

On Sunday, 7 May 2017 at 15:59:25 UTC, JV wrote:
> On Sunday, 7 May 2017 at 15:16:58 UTC, k-five wrote:
>> On Sunday, 7 May 2017 at 13:57:47 UTC, JV wrote:

> I'm kinda getting it but how do i write the stored user input(string) varaible into a .txt??im getting confused since D has so many read and write
>
>  ->sample below
>         string num;
>         auto attendance= File("studAttendance.txt","a+");
>
>         writeln("Add Student Attendance");
>         readf("%s ",&num);//im not sure if this is correct but assuming it works
>                           //how do i write what is stored in num in the studAttendance.txt
>                           //file??
>
>         attendance.close();

--------------------------------------------------------------

You have the right for confusing :) there is many read and write names. But I assumed you are familiar with [Type] and [Object] concept.

in:
auto output_file_stream = File( "file.txt", "w" );

auto = File              == A type
File( "file.txt", "w" ); == Constructor

So this type has its own property, like read for "r" mode and write for "w" mode.

So you should use output_file_stream.write(), not readf or so on.

Still I am very new in D, but this is the same concept in other language like C++

in C++:
#include <iostream>
#include <fstream>
#include <string>

int main(int argc, char **argv)
{
	
	std::ofstream ofs( "file.txt" );
	std::string line = "This is the first line";
        // write is a method in class ofstream
	ofs.write( &*line.begin(), line.length() );
	ofs.close();
}

On Sunday, 7 May 2017 at 16:40:50 UTC, k-five wrote:
> On Sunday, 7 May 2017 at 15:59:25 UTC, JV wrote:
>>> [...]
>
>>         [...]
>
> --------------------------------------------------------------
>
> You have the right for confusing :) there is many read and write names. But I assumed you are familiar with [Type] and [Object] concept.
>
> in:
> auto output_file_stream = File( "file.txt", "w" );
>
> auto = File              == A type
> File( "file.txt", "w" ); == Constructor
>
> So this type has its own property, like read for "r" mode and write for "w" mode.
>
> So you should use output_file_stream.write(), not readf or so on.
>
> Still I am very new in D, but this is the same concept in other language like C++
>
> in C++:
> #include <iostream>
> #include <fstream>
> #include <string>
>
> int main(int argc, char **argv)
> {
> 	
> 	std::ofstream ofs( "file.txt" );
> 	std::string line = "This is the first line";
>         // write is a method in class ofstream
> 	ofs.write( &*line.begin(), line.length() );
> 	ofs.close();
> }

Yeah i understand it very much like the other language like C/C++ and python..
since i'm self studying D language ..though i learn faster when there is a sample code
i don't know if it is rude but can i ask if you can give me a sample code for it?
a code for asking the user to enter something and then store it in a .txt file?

Thank you

On Monday, 8 May 2017 at 08:54:50 UTC, JV wrote:
> On Sunday, 7 May 2017 at 16:40:50 UTC, k-five wrote:
>> On Sunday, 7 May 2017 at 15:59:25 UTC, JV wrote:
---------------------------------------------------

Do not worry. Your request is not rude. I give you a better tool. I finished to collect some examples in D and in a few days I will share it in my githup
https://github.com/k-five/
and you can use it. I tested all examples and even put the output of each, beside the example.

here is the list of them:

├── 01_overview
├── 02_environment
├── 03_basic_syntax
├── 04_variable
├── 05_data-type
├── 06_enums
├── 07_literals
├── 08_operators
├── 09_loops
├── 10_decision
├── 11_functons
├── 12_characters
├── 13_strings
├── 14_array
├── 15_associative_array
├── 16_pointers
├── 17_tuple
├── 18_struct
├── 19_union
├── 20_range
├── 21_alias
├── 22_mixin
├── 23_module
├── 24_template
├── 25_immutable_type
├── 26_file_io
├── 27_thread
├── 28_exception
├── 29_contract_programming
├── 30_conditional_compilation
├── 31_classes
├── 32_inheritance
├── 33_overloading
├── 34_encapsulation
├── 35_interface
└── 36_abstract

plus
some examples for D feature and how to install d-mode on emacs editor

I got familiar with D for two weeks, so I am a beginner too.
You will see these examples ( almost 190 ) until Friday on my githup.

On Monday, 8 May 2017 at 09:26:48 UTC, k-five wrote:
> On Monday, 8 May 2017 at 08:54:50 UTC, JV wrote:
>>> [...]
> ---------------------------------------------------
>
> Do not worry. Your request is not rude. I give you a better tool. I finished to collect some examples in D and in a few days I will share it in my githup
> https://github.com/k-five/
> and you can use it. I tested all examples and even put the output of each, beside the example.
>
> [...]

Thank you and i hope to see more of you collection about D's filestream its very helpful

On Monday, 8 May 2017 at 10:22:53 UTC, JV wrote:
> On Monday, 8 May 2017 at 09:26:48 UTC, k-five wrote:
>> On Monday, 8 May 2017 at 08:54:50 UTC, JV wrote:

---------------------------------------------------

If I continue to learn D I will do but there is no guarantee
and it got ready :)
https://github.com/k-five/D-By-Example

if you have git, download them:
git clone https://github.com/k-five/D-By-Example.git

On Monday, 8 May 2017 at 10:34:42 UTC, k-five wrote:
> On Monday, 8 May 2017 at 10:22:53 UTC, JV wrote:
>> On Monday, 8 May 2017 at 09:26:48 UTC, k-five wrote:
>>> On Monday, 8 May 2017 at 08:54:50 UTC, JV wrote:
>
> ---------------------------------------------------
>
> If I continue to learn D I will do but there is no guarantee
> and it got ready :)
> https://github.com/k-five/D-By-Example
>
> if you have git, download them:
> git clone https://github.com/k-five/D-By-Example.git

Hey i'm not sure if i should create a new post for this but
how should i fix this it doesn't pause and store but just keeps reading

        string studNum;

        readf("%s",&studNum);
        write(studNum);